Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MOVABLE WASTE INCINERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2004/038295
Kind Code:
A1
Abstract:
Disclosed is a waste incineration apparatus, which is compact, and, which can prevent discharge of pollutants by forming combustion areas using air curtains formed by air injection. The waste incineration apparatus includes an incinerator opened at the upper portion and having the inside surrounded with a baked mixture material of clay and sand, a cover for opening and closing an opening part of the incinerator, a nozzle rod located at the center of the incinerator in a longitudinal direction of the incinerator and having a number of through holes formed in the circumference thereof, and two tanks for storing water and fuel to supply water and fuel to the inside of the incinerator. The incinerator is in the form of a cylinder, and includes a cylindrical body, anchors projecting from the inside of the body inwardly, and the baked mixture material of clay and sand containing the anchors and fixed to the inside of the body. The cover includes a lower plate, side walls located perpendicularly along the outer circumference thereof, and a closing plate for closing the upper ends of the sidewalls. The lower plate has a width equal to that a width of the body of the incinerator and a width of the baked mixture material of clay and sand are added, and the sidewall has a number of through holes.

Inventors:
KIM HYUN-WOOK (KR)
Application Number:
PCT/KR2002/002008
Publication Date:
May 06, 2004
Filing Date:
October 28, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
& CO INC (KR)
KIM HYUN-WOOK (KR)
International Classes:
F23G5/42; F23L5/04; (IPC1-7): F23G5/16
Foreign References:
JPS59212616A1984-12-01
JPH11270817A1999-10-05
JPH09243033A1997-09-16
JPH07233923A1995-09-05
Attorney, Agent or Firm:
Choi, Seog-won (2nd Fl. Gangrim Bldg.,, 734-5 Yeoksam-don, Gangnam-gu Seoul 135-080, KR)
Download PDF:
Claims:
What Is Claimed Is:
1. A movable waste incineration apparatus comprising: an incinerator (720) having a cylindrical case and surrounded with a baked mixture material of clay and sand fixed inside the case; a cover (750) hinged at an end with the case of the incinerator (720) to open and close an opening part of the upper portion of the incinerator; a nozzle rod (800) located at the center of the incinerator in a longitudinal direction of the incinerator, the nozzle rod having a number of through holes formed in the circumference thereof; a ventilation fan (741) connected to the rear end of the nozzle rod to ventilate the air; and a storage tank for supplying the inside of the incinerator with water or fuel, wherein the nozzle rod (800) has a number of through holes (801), and the through holes (801) are formed in the upper end of the nozzle rod and portions, which divides the nozzle rod equally according to the length of the nozzle rod (800), at regular intervals along the circumference of the nozzle rod, and further comprising two tanks (743) (745) for storing water or fuel respectively to supply water or fuel to nozzles (729) provided inside the incinerator, and pumps (747a) (747b) for supplying water and fuel from the two tanks to the nozzles.
2. The movable waste incineration apparatus according to claim 1, wherein the incinerator is in the form of a cylinder, and includes a cylindrical case (721), anchors (722) projecting inwardly from the inner surface of the case at regular intervals, the baked mixture material of clay and sand (723) containing the anchors and fixed to the inside of the case, and a water cooled pipe (724) mounted inside the baked mixture material of clay and sand for cooling water.
3. The movable waste incineration apparatus according to claim 1 or 2, wherein the cover (750) includes a lower plate, side walls located perpendicularly along the outer surface of the lower plate, and a closing plate for closing the upper ends of the side walls, the lower plate having a width equal to that a thickness of the case (721) of the incinerator and a thickness of the baked mixture material of clay and sand (723) are added, the side wall having a number of ventilation holes.
4. The movable waste incineration apparatus according to claim 3, wherein the cover (750) further includes a second closing plate located on the lower surface of the closing plate, the second closing plate being fixed in a direction that the cylindrical second closing plate directs the inside of the incinerator, the second closing plate being shorter in height than the side wall (223) and having a diameter nearly equal to an inner diameter of the baked mixture material of clay and sand (203).
5. The movable waste incineration apparatus according to claim 1, wherein the through holes of the nozzle rod are formed at positions of the nozzle rod trisecting or quadrisecting the nozzle rod according to the length of the nozzle rod, the through holes of the nozzle rod being formed at regular intervals along the circumference of the nozzle rod.
6. The movable waste incineration apparatus according to claim 1, wherein the lower end of the nozzle rod extends to the lower surface of the cover after passing the lower surface of the incinerator, the upper end of the nozzle rod is closed, and a socket is mounted on the lower end of the nozzle rod.
7. The movable waste incineration apparatus according to claim 6, wherein a flange is formed on the air supply pipe, which is. connected to the ventilation fan (741) and the lower end of the nozzle rod (800) to form a flow path, the flange of the air supply pipe being connected to the socket.
8. The movable waste incineration apparatus according to claim 1, wherein the nozzles (729) are opposed to each other on the upper end of the inside of the incinerator, and the other nozzles (729) are opposed to each other on the lower end of the inside of the incinerator.
9. The movable waste incineration apparatus according to claim 8, wherein the two nozzles located on the upper end of the incinerator and the two nozzles located on the lower end are arranged at an angle of 90 when you see the nozzles from a plan view.
10. The movable waste incineration apparatus according to claim 9, wherein the two nozzles (729) located on the upper and lower ends of the incinerator are connected to 2branch pipes of 3way valves (727) respectively, 1 branch pipes of the 3way valve is connected to the pumps (747a) (747b), and the pumps (747a) (747b) supply water or fuel from the tanks (743) (745) to the nozzles.
11. The movable waste incineration apparatus according to claim 1, wherein a second outlet is formed in the lower end of the sidewall of the incinerator.
12. The movable waste incineration apparatus according to claim 10, wherein the ventilation fan (741), the two tanks (743) (745) and the pumps (747a) (747b) are located on the side part of the incinerator and contained in housings (742a) (742b), and the incinerator (720), a control box (78) and the housings (742a) (742b) are arranged on a base plate (701).
13. The movable waste incineration apparatus according to claim 12, wherein the housing includes an opening formed in the upper portion thereof, a cover for closing the opening, a stepped plate fixed on the side surface of the housing, and guide rails fixed on the upper surface of the housing.
Description:
MOVABLE WASTE INCINERATION APPARATUS Technical Field The present invention relates to a waste incineration apparatus, and more particularly to, a waste incineration apparatus, which is compact, and, which can prevent discharge of pollutants by forming combustion areas using air curtains formed by air injection.

Background Art In general, burning apparatuses have been used to burn industrial wastes or sewages. However, the burning apparatuses cause serious air pollution because they discharge the air pollutants, which are generated when wastes are burned, to the air. To solve the above problem, the government restricts the discharge of the air pollutants legally, and the government and several research institutions are aggressive in studying the burning apparatuses and supporting the study of the burning apparatuses.

FIG. I is a brief view of a burning state of a conventional burning apparatus.

As shown in FIG. I, a rectangular parallelpiped incinerator 1 includes two bulkheads 11 and 12 formed longitudinally and three combustion chambers 2,3 and 4 formed by the bulkheads 11 and 12 inside the incinerator 1. The first combustion chamber 2 has an inlet 6 for injecting wastes, and the third combustion chamber 4 has a chimney 5 formed on the upper portion.

The wastes injected through the inlet 6 of the first combustion chamber 2 are first burned in the first combustion chamber 2. After that, ashes and exhaust gas generated by the first combustion are moved to the second combustion

chamber 3 through a through hole 7 formed on the upper portion of the bulkhead 11 which divides the first and second combustion chambers 2 and 3.

The second combustion chamber 3 second burns the ashes and gas generated in the first combustion chamber 2. After that, the ashes and gas generated by the second combustion are moved to the third combustion chamber 4 through a through hole 8 formed on the lower portion of the bulkhead 12 dividing the second and third combustion chambers 3 and 4. The third combustion chamber 4 third burns the ashes and gas generated by the second <BR> <BR> combustion, and discharges them to the air through the chimney, i. e. , an exhaust pipe, formed on the upper portion of the third combustion chamber 4.

Meanwhile, the first and second combustion chambers 2 and 3 respectively have outlets 9 formed in the lower portion thereof to collect and discharge relatively heavy ashes generated after being burned in each combustion chamber.

As described above, the conventional burning apparatus burns the wastes three times and discharges the ashes and gas generated during the burning process.

However, as the environmental pollution became serious, there has been disclosed a burning apparatus, which has a cooling device for cooling high-temperature gas and ashes discharged from the chimney and a dust collector for collecting the ashes and gas and discharging them to the air.

In the conventional burning apparatus having the chimney, air pressure to discharge the ashes and gas to the air acts on the inside of the chimney and each combustion chamber. Therefore, the pressure of the first to third combustion chambers communicating with the chimney meets with resistance because of the air pressure.

Especially, the first combustion chamber creates a large quantity of toxic substances due to constraint combustion, and the toxic substances are discharged through the chimney by the air pressure of the chimney without sufficient reburning.

Meanwhile, the dust collector having a filter is mounted on the chimney collects the toxic substances and dust'discharged through the chimney. However, the dust collector is unreliable because having different dust-collecting efficiency according to performance of the filter. The reason is that an operator cannot know from the outside whether or not the dust collector shows its performance sufficiently even though the lifetime of the filter is ended.

Disclosure of Invention Accordingly, an object of the present invention is to provide a waste incineration apparatus, which has a number of combustion chambers divided by the air injected through a nozzle rod and burns all wastes and toxic substances without using a chimney, a dust collector and a cooling device.

To achieve the above object, the present invention provides a waste incineration apparatus including an incinerator opened at the upper portion and having the inside surrounded with a baked mixture material of clay and sand, a cover for opening and closing an opening part of the incinerator, a nozzle rod located at the center of the incinerator in a longitudinal direction of the incinerator and having a number of through holes formed in the circumference thereof, and two tanks for storing water and fuel to supply water and fuel to the inside of the incinerator.

The incinerator is in the form of a cylinder, and includes a cylindrical body, anchors projecting from the inside of the body inwardly, and the baked mixture material of clay and sand containing the anchors and fixed to the inside of the body.

The cover includes a lower plate, sidewalls located perpendicularly along the outer circumference thereof, and a'closing plate for closing the upper ends of the sidewalls. The lower plate has a width equal to that a width of the body of the

incinerator and a width of the baked mixture material of clay and sand are added, and the sidewall has a number of through holes.

A second closing plate is fixed on the lower surface of the closing plate toward the inside of the incinerator,, the second closing plate having the same height as the side walls.

The through holes of the nozzle rod are formed in at least three or more positions on the circumference of the nozzle rod along the length of the nozzle rod at a predetermined pitch.

The through holes formed in at least three or more positions in the longitudinal direction of the nozzle rod are at regular intervals.

The lower end of the nozzle rod extends to the lower surface of the cover through the lower surface of the incinerator, the upper end of the nozzle rod is closed, and a socket is mounted on the lower end of the nozzle rod.

Furthermore, the air supply pipe forming the flow path by being connected to the ventilation fan is provided with a flange, and the flange of the air supply pipe is connected to the socket.

A number of nozzles are opposed to each other on the upper end of the inside of the incinerator, and a number of nozzles are opposed to each other on the lower end of the inside of the incinerator.

The nozzles located on the upper and lower ends of the incinerator are arranged by twos, and the two nozzles of the upper end and the two nozzles of the lower end are arranged at right angles.

The two nozzles located on the upper and lower ends of the incinerator are respectively connected to 2-branch pipes of 3-way valves, and 1-branch pipes of the 3-way valves are connected to pumps. The pumps supply water or fuel from two tanks to the nozzles.

The incinerator has a second outlet formed in the lower end of the side wall thereof.

The ventilation fan, the two tanks and the pumps are located on the side part of the incinerator and contained in two housings.

The housing includes an opening formed in the upper portion thereof, a cover for closing the opening of the housing, a stepped plate fixed on the side surface of the housing, and guide rails fixed on the upper surface of the housing.

Brief Description of the Drawings Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. 1 is a brief view of a burning state of a conventional incineration apparatus; FIG. 2 is a perspective view of an incineration apparatus according to a preferred embodiment of the present invention; FIG. 3 is a front view of the incineration apparatus of FIG. 2; FIG. 4 is a schematic diagram of a piping of the incineration apparatus of FIG. 2; FIG. 5 is a side view of an incinerator of the incineration apparatus of FIG.

2 ; FIG. 6 is a brief view showing an air flow when wastes are burned in the incinerator of FIG. 5; FIG. 7a is a front view of a first example of a nozzle rod located inside the incinerator; FIG. 7b is a sectional view of the nozzle rod of FIG. 7a; FIG. 8a is a front view of a second example of the nozzle rod located inside the incinerator; FIG. 8b is a sectional view of the nozzle rod of FIG. 8a; FIG. 9a is a front view of a third example of the nozzle rod located inside

the incinerator; FIG. 9b is a sectional view of the nozzle rod of FIG. 9a ; FIG. lOa is a front view of a fourth example of a nozzle rod located inside the incinerator; and FIG. 1 Ob is a sectional view of the nozzle rod of FIG. 1 Oa.

Best Mode for Carrying Out the Invention The present invention will now be described in detail in connection with preferred embodiments with reference to the accompanying drawings. For reference, like reference characters designate corresponding parts throughout several views.

FIG. 2 is a perspective view of an incineration apparatus according to a preferred embodiment of the present invention, FIG. 3 is a front view of the incineration apparatus of FIG. 2, FIG. 4 is a schematic diagram of a piping of the incineration apparatus of FIG. 2, FIG. 5 is a side view of an incinerator of the incineration apparatus of FIG. 2, and FIG. 6 is a brief view showing an air flow when wastes are burned in the incinerator of FIG. 5.

As shown in FIGS. 2 to 6, the incineration apparatus includes a cylindrical incinerator 720 for injecting and burning wastes, a ventilation fan 741 for ventilating the air to a nozzle rod 800 located inside the incinerator 720, a water tank 743 for storing water to supply water into the incinerator 720, and a waste oil tank 745 for storing waste oil to supply waste oil into the incinerator 720.

The cylindrical incinerator 720 includes a cylindrical case 721, a baked mixture material of clay and sand 723 fixed long the lower surface of the inside and the side surface of the case 721, the nozzle rod 800 located at the center of the cylindrical incinerator 720 in a longitudinal direction of the incinerator 720, and a cover 750 for covering the opened upper portion of the incinerator 720.

Anchors 722 project from the inner surface and the lower surface of the

inside of the case 721 at regular intervals, and the baked mixture material of clay and sand 723 is fixed on the inner surface and the lower surface of the inside of the case 721 and contains the anchors 722. Water cooled tubes 724 are mounted inside the baked mixture material of clay and sand 723 at regular intervals to drop temperature of the baked mixture material of clay and sand 723 by taking heat of the baked mixture material of clay and sand 723.

The nozzle rod 800 extends to the lower surface of the cover closing the upper end of the incinerator 720 through the lower surface of the incinerator 720.

The nozzle rod 800 has a number of through holes 801 formed along the circumference thereof, and the through holes 801 are formed along the length of the nozzle rod 800. The nozzle rod 800 is closed at the upper end and opened at the lower end, and has a sleeve located at a part contacting with the lower surface of the incinerator 720 to surround the nozzle rod, and a socket connected to the lower end of the sleeve. The socket has a flange formed on the lower end thereof.

Meanwhile, the incinerator 720 has an outlet 725 formed at the lower end of the sidewall thereof, and the outlet 725 has a discharge door for opening and closing the outlet 725.

Nozzles 729 are located at the upper and lower ends of the inside of the incinerator 720 by two. On two axes intersecting at right angles to each other on a central shaft of the nozzle rod 800, the two nozzles 729 located on the upper end are located in the direction of 45 degrees from the second and fourth quadrants, and the other nozzles 729 are located in the direction of 45 degrees from the first and third quadrants.

In FIG. 4, it is preferable that the two nozzles 729 located on the upper end of the incinerator 720 are located at 135 and 315 degrees from the center of an outlet 725 in the clockwise direction, and the two nozzles 729 located on the lower end of the incinerator 720 are located at 45 and 225 degrees from the center of the outlet in the clockwise direction.

Therefore, the nozzles 729 located on the upper and lower ends are opposed to each other at 180 degrees, and intersect to each other.

The nozzles 729 opposed to each other are connected to 3-way valve 727 of a T-shape. The 3-way valves 727 are connected to two branch pipes and one supply pipe: the two branch pipes of the 3-way valve 727 being connected to the two nozzles 729 located on the upper'or lower portion; and the one supply pipe being connected to pumps 747a and 747b.

The configuration of the cover for covering the upper end of the incinerator will be described.

The cover 750 includes a lower plate being in the form of a ring, cylindrical sidewalls located perpendicularly to the lower plate along the outer circumference of the lower plate, and a closing plate for closing the upper ends of the sidewalls. The lower plate has a width equal to that a thickness of the case 721 of the incinerator 720 and a thickness of the baked mixture material of clay and sand 723 are added. The cover 750 has ventilation holes formed in the whole surface of the sidewall.

A second closing plate is formed on the lower surface of the closing plate, and fixed on the lower surface of the cylindrical closing plate with the same height as the sidewalls.

The cover 750 and the incinerator 720 are hinged to each other, and the cover 750 closes the upper end of the incinerator 720 while pivoting on a hinge shaft 760. A motor 765 is mounted on the hinge shaft 760, and rotates the cover 750 upwardly or downwardly by the rotation of the motor 765. The motor 765 is controlled by a control box 780.

A ventilation fan 741 is connected to the nozzle rod 800 located in the center of the incinerator 720. The air blown from the ventilation fan 741 is supplied to the lower end of the nozzle rod 800 through an air supply pipe 252.

Therefore, a flange formed at an end of the air supply pipe 252 and a flange of the socket 215 connected to the lower end of the nozzle rod 800 are connected to

each other by a bolt and a nut.

The water tank 743 storing water and a first pump 747a are connected through a pipe, and also, the waste oil tank 745 storing the waste oil and a second pump 747b are connected through another pipe. The first and second pumps 747a and 747b are connected to the two 3-way valves 727 located on the upper and lower ends of the incinerator 720.

The four nozzles 729 located on the upper and lower ends of the incinerator 720 can inject water when the first pump 747a is operated, and the four nozzles 729 can inject waste oil when the second pump 747b is operated.

Alternatively, when the first and second pumps 747a and 747b are operated at the same time and control the valve 790 mounted on the pipes, the two nozzles 729 located on the upper end of the incinerator inject water and the two nozzles 729 located on the lower end inject waste oil, or to the contrary, the nozzles of the upper end discharge waste oil and the nozzles of the lower end inject water.

The incinerator 720, the water tank 743, the waste oil tank 745, the ventilation fan 741 and the two pumps 747a and 747b are mounted on the upper surface of a base plate 701.

As shown in FIGS. 3 and 4, the incinerator 720 is located on the left side of the base plate 701, and two housings 742a and 742b are located on the right side of the base plate 701. The first housing 742a adjacent to the incinerator 720 contains the water tank 743 and the waste oil tank 745 therein, and the second housing 742b contains the ventilation fan 741 and the two pumps 747a and 747b therein. The first and second housings 742a and 742b are communicated with each other. The air supply pipe 252 connected to the ventilation fan 741 passes between the water tank 743 and the waste oil tank 745, and is connected to a flange of the socket 215.

The top surfaces of the first and second housings 742a and 742 are opened, and the cover 750 is mounted on the housings 742a and 742b to open and close the housings 742a and 742b. A stepped plate 746 is formed on the

circumference of the second housing 742b, and guide rails are mounted on the top portion of the first housing 742a.

A control box 780 for controlling the operation of the incineration apparatus 700 is mounted on the upper portion of the second housing 742b. The incineration apparatus 700 can be mounted and moved on a cargo room of a cargo truck. The first housing 742a, which contains the water tank 743 and the waste oil tank 745, the second housing 742b, which contains the ventilation fan 741 and the two pumps 747a and 747b, and the control box 780 are all called an operation part 740.

A burning process of the incineration apparatus will be described in detail.

An operator opens the cover 750 of the incinerator 720, which burns wastes in the incineration apparatus 700, and injects the wastes into the incinerator 720. After that, the operator turns the cover 750 to close the upper end of the incinerator 720.

When the ventilation fan 741 blows the air to the lower end of the nozzle rod 800, the air is injected to the incinerator 720 through the through holes 801 formed in the nozzle rod 800. At this time, the injected air is at high speed, and serves as air curtains, and thereby, divides the inside of the incinerator into a number of combustion chambers 811,812 and 813 in the longitudinal direction of the nozzle rod 800.

In the length of the nozzle rod 800 located perpendicularly inside the incinerator 720, a first air injection part 603 is formed on the upper end of the nozzle rod 800, a second air injection part 604 and a third air injection part 605 are formed at two positions trisecting a distance between the first air injection part 603 and the lower surface of the inside of the incinerator 720.

A first combustion chamber 101 is an area between the lower surface of the inside of the incinerator 720 and the third air injection part 605, a second combustion chamber 102 is an area between the second air injection part 604 and the third air injection part 605, and a third combustion chamber 103 is an area

between the first air injection part 603 and the second air injection part 604.

Each through hole 801 discharges high-speed air, and the high-speed air serves as the air curtain to divide the combustion chambers 811,812 and 813, and supplies oxygen necessary for the combustion.

If paper is injected into the incinerator 720, lots of ashes are generated during the burning process. The ashes are raised up by the air flow of an eddy form. To move the ashes to the lower portion of the incinerator 720 and reburn them, the four nozzles 729 located on the upper portion of the incinerator 720 inject water in a mist type. Water injected through the four nozzles 729 is absorbed into the ashes, and thereby, the ashes are moved in the downward direction of the incinerator 720 and reburned. If the wastes injected into the incinerator 720 are paper, the nozzle rod 800 having the through holes formed at regular intervals in the longitudinal direction is used.

If wastes containing lots of moisture are injected into the incinerator 720, the nozzles 729 arranged on the upper and lower end of the incinerator 720 by two discharge waste oil, so that the inside temperature of the incinerator 720 rises and the wastes containing moisture is burned actively.

If wastes containing PVC materials are injected into the incinerator 720, CaC03, which is neutralizing agent, is added into the water tank 743, and then, the mixture is discharged through the nozzles 729 located on the upper and lower ends of the incinerator 720. The reason is to neutralize hydrogen chloride (HCI) generated while PVC is burned. As the result, hydrogen chloride (HCI) generated by the neutralizing agent is reduced from 200PPM to 8PPM.

As described above, the wastes are burned completely through the third burning process. In one embodiment of the present invention, it is preferable that temperature of the first combustion chamber 101 is 300-400°C, temperature of the second combustion chamber 102 is 500-600°C, and temperature of the third combustion chamber 103 is more than 1250°C.

The ashes generated inside the incinerator 720 rises up. At this time, the

ashes are introduced into the second closing plate of the cover 750, and then, drop <BR> <BR> along the second closing plate in the downward direction, i. e. , to the inside of the combustion chambers 811,812 and 813 of the incinerator 720. The outside air is induced into the incinerator 720 through the through holes 801 formed in the sidewalls of the cover 750. Therefore, the air induced into the incinerator 720 supplies oxygen through a path for inducing the air through the cover 750 and through a path for inducing the air through the nozzle rod 800.

As shown in FIG. 6, the nozzle. rod 800 has the through holes 801 formed at regular intervals in the longitudinal direction, but may have the through holes formed at regular intervals or irregular intervals according to kinds of the wastes.

If an exhaust gas discharge pipe is connected to the cover located on the upper portion of the incinerator and a cyclone, a cooling device and a dust collector are mounted on the discharge pipe, the incineration apparatus can prevent discharge of pollutants by refiltering and cooling exhaust gas and dust.

Hereinafter, the nozzle rod located inside the incinerator will be described in more detail.

FIG. 7a is a front view of a first example of a nozzle rod located inside the incinerator, FIG. 7b is a sectional view of the nozzle rod of FIG. 7a, FIG. 8a is a front view of a second example of the nozzle rod located inside the incinerator, FIG. 8b is a sectional view of the nozzle rod of FIG. 8a, FIG. 9a is a front view of a third example of the nozzle rod located inside the incinerator, FIG. 9b is a sectional view of the nozzle rod of FIG. 9a, FIG. 10a is a front view of a fourth example of a nozzle rod located inside the incinerator, and FIG. l Ob is a sectional view of the nozzle rod of FIG. 10a.

A nozzle rod 620 shown in FIGS. 7a and 7b is 3230mm in length. In FIGS. 7a and 7b, the supporting member is 250mm in thickness, and located on the upper portion at a distance of 500mm from the lower end of the nozzle rod 620. The through holes of 3. 2-3. 5mm in diameter are formed at the position 138mm away from the upper end of the nozzle rod 620 downwardly at a pitch of

15mm along the circumference of the nozzle rod 620. For your convenience, the through hole 621 formed in the top portion of the nozzle rod 620 is called a first perforated part 623a, and the next through holes are called first, second, third, fourth,..., and the tenth perforated parts in order.

The nozzle rod 620 shown in FIGS. 7a and 7b has two perforated parts formed to divide the combustion chambers, and the perforated parts are to reinforce the function of the air curtain injected from the nozzle rod. That is, the fourth combustion chamber and the third combustion chamber of the top portion are divided by the second perforated part 623b and the third perforated part 623c, the third combustion chamber and the second combustion chamber are divided by the fourth perforated part 623d and the fifth perforated part 623e, and the second combustion chamber and the first combustion chamber are divided by the sixth perforated part 623f and the seventh perforated part 623g. The combustion chamber formed between the seventh perforated part 623g and the eighth perforated part 623h is the first combustion chamber.

The second perforated part 623b is formed at a distance of 556mm from the first perforated part 623a in the downward direction, and has through holes of 3. 2-3. 5mm in diameter as in the first perforated part 623a, the through holes being formed at a pitch of 15mm along the circumference of the nozzle rod.

The third perforated part 623c is formed at a distance of 100mm from the second perforated part 623b in the downward direction, and is in the same form as the second perforated part 623b.

The fourth perforated part 623d is formed at a distance of 556mm from the third perforated part 623c in the downward direction, and has through holes of 3.2mm in diameter at a pitch of 15mm along the circumference of the nozzle rod.

The fifth perforated part 623e is formed at a distance of 100mm from the fourth perforated part 623d in the downward direction, and is in the same form as the fourth perforated part 623d.

The sixth perforated part 623fiv formed at a distance of 500mm from the

fifth perforated part 623e in the downward direction, and has through holes of 3. 2mm in diameter formed at a pitch of 15mm.

The seventh perforated part 623g is formed at a distance of 100mm from the sixth perforated part 623f in the downward direction, and is in the same form as the sixth perforated part 623f. The eighth perforated part 623h is formed at a distance of 500mm from the seventh perforated part 623g in the downward direction, and has through holes of 3. Omm in diameter formed at a pitch of 15mm.

The supporting member is located at a distance of 50mm from the eighth perforated part 623h in the downward direction. The ninth perforated part 623i is formed at a distance of 50mm from the lower surface of the supporting member of 250mm in thickness in the downward direction, and is in the same form as the eighth perforated part 623h. The tenth perforated part 623j is formed at a distance of 400mm from the ninth perforated part 623i in the downward direction, and is in the same form as the ninth perforated part 623i.

In the nozzle rod 620 shown in FIGS. 7a and 7b, an interval between the first perforated part 623a and the second perforated part 623b and an interval between the third perforated part 623c and the fourth perforated part 623d are 556mm. An interval between the fifth perforated part 623e and the sixth perforated part 623f and an interval between the seventh perforated part 623g and the eighth perforated part 623h are 500mm. As described above, the nozzle rod having regularity in intervals between the perforated parts is called'an equal spacing nozzle rod'. The equal spacing nozzle rod is mainly used in case that the wastes are paper.

In FIGS. 8a and 8b, a nozzle rod 630 is also the equal spacing nozzle rod.

The nozzle rod 630 is 1410mm in length, and has ten perforated parts 633a to 633j formed along the length of the nozzle rod 630. The first perforated. part 633a is formed at a distance of 40mm from the upper end of the nozzle rod 630 in the downward direction, and has through holes of 2. 7-2. 8mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod 630. The second

perforated part 633b is formed at a distance of 50mm from the first perforated part 633a in the downward direction, and has through holes of 2. 7-2. 8mm in diameter formed at a pitch of 15mm along the circumference of the nozzle rod 630.

The third perforated part 633c is formed at a distance of 40mm from the second perforated part 633b in the downward direction, and is in the same form as the first perforated part 633a.

The fourth perforated part 633d is formed at a distance of 150mm from the third perforated part 633c in the downward direction, and has through holes of 1. 5mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod 630. The seventh, eighth and ninth perforated parts 633e to 633i are formed at distances of 150mm from the fourth perforated part 633d in the downward direction. The tenth perforated part 633j is formed at a distance of 25mm from the ninth perforated part 633i in the downward direction, and has through holes of 3. 2mm in diameter formed at a pitch of 10mm.

Differently from the equal spacing nozzle rods of FIGS. 7a, 7b, 8a and gb, a nozzle rod 640 shown in FIGS. 9a and 9b is a unequal spacing nozzle rod.

In FIGS. 9a and 9b, the nozzle rod 640 is 935mm in length, and has seven perforated parts 643a to 643g. The first perforated part 643a is formed at a distance of 80mm from the upper end of the nozzle rod 640 in the downward direction, and has through holes of4. 5-5. 0mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod 640.

The second perforated part 643b is formed at a distance of 60mm from the first perforated part 643a in the downward direction, and has through holes. of 4. 5-5. Omm in diameter formed at a pitch of 15mm along the circumference of the nozzle rod 640.

The third perforated part 643c is formed at a distance of 50mm from the second perforated part 643b in the downward direction, and has through holes of the same diameter as the second perforated part 643b or the third perforated part

643 c formed at a pitch of 10mm.

The fourth perforated part 643d is formed at a distance of 255mm from the third perforated part 643c in the downward direction, and has through holes of 4.2mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod. The fifth perforated part 643e is formed at a distance of 70mm from the fourth perforated part 643d in the downward direction in the same form as the fourth perforated part 643d.

The sixth perforated part 643e is formed at a distance of 250mm from the fifth perforated part 643e in the downward direction, and has through holes of 4. 0mm in diameter formed at a pitch of 10mm.

The seventh perforated part 643g is formed at a distance of 70mm from the sixth perforated part 643f in the downward direction in the same form as the sixth perforated part 643g.

As described above, the nozzle rod, which has the unequal intervals between the perforated parts, is used when synthetic resin-based wastes or rubber- based wastes generated from crude oil are burned.

FIGS. 10a and 10b show another unequal spacing nozzle rod 650. The nozzle rod 650 is 1410mm in length, and has eleven perforated parts 653a to 653k.

The first perforated part 653a is formed at a distance of 40mm from the upper end of the nozzle rod in the downward direction, and has through holes of2. 6-2. 7mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod 650.

The second perforated part 653b is formed at a distance of 50mm from the first perforated part 653a in the downward direction, and has through holes of 2. 7-2. 8mm in diameter formed at a pitch of 15mm along the circumference of the nozzle rod 650.

The third perforated part 653c is formed at a distance of 40mm from the second perforated part 653b in the downward direction, and has through holes, which have the same diameter as the first perforated part 653a and are formed at a

pitch of 10mm.

The fourth perforated part 653d is formed at a distance of 260mm from the third perforated part 653c in the downward direction, and has through holes of 2. 7mm in diameter formed at a pitch of 10mm along the circumference of the nozzle rod 650. The fifth perforated part 653e of the same form as the first perforated part 653a is formed at a distance of 300mm from the fourth perforated part 653d in the downward direction.

The sixth perforated part 653f is formed at a distance of 50mm from the fifth perforated part 653e in the downward direction, and is in the same form as the fifth perforated part 653e.

The seventh perforated part 653g is formed at a distance of 200mm from the sixth perforated part 653f in the downward direction, the seventh perforated part being in the same form as the sixth perforated part, and the eighth perforated part 653h is formed at a distance of 50mm from the seventh perforated part 653g in the downward direction. The eighth perforated part 653h is in the same form as the seventh perforated part 653g.

The ninth perforated part 653i is formed at a distance of 165mm from the eighth perforated part 653h in the downward direction, and is in the same form as the fourth perforated part 653d. The tenth perforated part 653j is. formed at a distance of 175mm from the ninth perforated part 653i in the downward direction, and has through holes of 1. 5mm in diameter formed at a pitch of 5mm. The eleventh perforated part 653k is formed at a distance of 40mm from the tenth perforated part 653j in the downward direction, and has through holes of 2. 7mm in diameter formed at a pitch of 15mm.

The nozzle rod 650 shown in FIGS. 10a and 10b is used when synthetic resin-based wastes or rubber-based wastes generated from crude oil are burned.

Industrial Applicability

As described above, the burning apparatus according to the present invention can reduce manufacturing expenses because it has a nozzle rod for injecting the air into the incinerator and a number of combustion chambers formed by the air injected from the nozzle rod.

Moreover, the burning apparatus according to the present invention can reduce maintenance and management expenses because burning the wastes by supplying lots of oxygen together with heat burning the wastes without using a burner for burning.

Furthermore, the burning apparatus according to the present invention can be mounted on a cargo room of a cargo truck because of its small size.

While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.