BACKGROUND ART As is generally known, poisonous substances among waste materials are separately collected and specially treated because the poisonous substances cause serious environmental pollution. Among the waste materials, recyclable materials are collected and recycled, and materials which are hard or impossible to recycle are buried in a specific area because of difficulties in their disposal.

In the conventional method of burying the waste, the waste is buried at a place to which reservoir structure for storing the waste in a mount area, sea shore, or depression area and cutoff facilities for presenting soil from being polluted due to leachate and for preventing ground water and surface water from being polluted.

However, in the conventional method, since the waste without the destructing, compressing, binding, and wrapping process is buried, in order to prevent effluence of malodor and blowing of dust from the buried waste and to stabilize the basis of the landfill area, a sires of tasks such as the burring of waste, the covering of the land, and the land basis compaction have to be repeatedly performed. Therefore, there is a problem that the work of burying waste is very cumbersome and the cost for treating the waste is very high.

In addition, since the waste without an additional suitable disposal

process has to be treated, there is another problem that the work environment is very bad. Furthermore, since the waste which is buried in accordance with the conventional method has its original shape, there is still another problem that it is difficult to decompose the waste rapidly.

DISCLOSURE OF INVENTION In order to solve the above mentioned problems, an object of the present invention is to provide an automatic waste treatment apparatus so that it is convenient to treat the to-be-burred waste and to perform the work for burying and it is possible to improve the work environment and to decompose the buried waste rapidly.

In order to achieve the objection of the present invention, a waste treatment apparatus according to the present invention comprises an inputting conveyer for transferring waste and inputting the waste to a destructing unit; the destructing unit for destructing the waste which is input from the inputting conveyer; a strain injecting unit for injecting a strain into the waste which is input to the destructing unit, thereby facilitating decomposition of the waste; a first transferring conveyer for transferring a destructed material which is output from the destructing unit to a compressing unit; the compressing unit for compressing the destructed material which is input from the first transferring unit; a binding unit for binding compressed materials which are compressed by the compressing unit 500; a second transferring conveyer 700 for transferring the wire-bound compressed materials 21,22 which are output from the compressing unit 500 to the wrapping unit 800; the wrapping unit 800 for covering circumferential surfaces of the compressed materials 20,21, 22 with

wrap L, wherein the compressed materials are transferred by the second transferring conveyer 700 and an outputting unit 900; and the outputting unit 900 for overturning the wrapped compressed material 20 which is input from the wrapping unit 800 and transferring the wrapped compressed material to the wrapping unit 800 or for outputting the compressed materials of which entire surfaces are completely covered.

BRIEF DESCRIPTION OF THE DRAWINGS Fig 1 is a plan view illustrating a waste treatment apparatus according to the present invention.

Fig. 2 is a right side view of a destructing unit shown in Fig. 1.

Fig. 3 is an enlarged plan view illustrating principal parts of the destructing unit.

Fig. 4 is partially fragmentary perspective view of principle parts of a planetary gear transmission unit constituting the destructing unit.

Fig. 5 is a view for explaining an operational state of the planetary gear transmission unit.

Fig. 6 is a cross-sectional view of shafts of the destructing unit shown in Fig. 3.

Fig. 7 is a perspective view illustrating a compressing unit and a binding unit shown in Fig. 1.

Figs 8a to 8d are partially cross-sectional front views for explaining operational states of the compressing unit.

Figs 9a to 9d are partially cross-sectional front views for explaining operational states of the compressing unit.

Fig. 10 is a right side view illustrating a wire supplier constituting a binding unit shown in Fig. 1.

Fig. 11 a is an enlarged view illustrating the X part of Fig. 10.

Fig. l lb is a plan view of Fig. l la.

Fig. 12 is a front view illustrating a wire binder and a wire cutter constituting the binding unit shown in Fig. 9a.

Fig. 13 is a front view illustrating a state as the cover in the Fig. 12 is removed.

Fig. 14 is a right side view of a binding gear part.

Figs 15a to 15c is plan views illustrating operational states of the binding unit.

Fig. 16 is an enlarged view of principle parts of Fig. 15c.

Fig. 17 is an enlarged plan view illustrating a portion of a wrapping unit.

Fig. 18 is a partially cross-sectional left side view of the wrapping unit.

Figs 19a to 19d are front views illustrating operational views of an outputting unit.

BEST MODE FOR CARRYING OUT THE INVENTION Now, the preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to Fig. 1, the waste treatment apparatus according to the present invention comprises an inputting conveyer 100 for transferring waste and inputting the waste to a destructing unit 200; the destructing unit 200 for destructing the waste which is input from the inputting conveyer 100; a strain injecting unit 300 for injecting a strain into the waste which is input to the

destructing unit 200, thereby facilitating decomposition of the waste; a first transferring conveyer 400 for transferring a destructed material 10 which is output from the destructing unit 200 to a compressing unit 500; the compressing unit 500 for compressing the destructed material which is input from the first transferring unit 400; a binding unit 600 for binding compressed materials 21, 22 which are compressed by the compressing unit 500; a second transferring conveyer 700 for transferring the wire-bound compressed materials 21,22 which are output from the compressing unit 500 to the wrapping unit 800 ; the wrapping unit 800 for covering circumferential surfaces of the compressed materials 20,21, 22 with wrap L, wherein the compressed materials are transferred by the second transferring conveyer 700 and an outputting unit 900; and the outputting unit 900 for overturning the wrapped compressed material 20 which is input from the wrapping unit 800 and transferring the wrapped compressed material to the wrapping unit 800 or for outputting the compressed materials of which entire surfaces are completely covered.

Now, the operation of the waste treatment apparatus will be described.

When the waste is provided to the input conveyer 100, the waste is transferred along the input conveyer 100 and input into the destructing unit 200 which destructs the waste. The strain injecting unit 300 injects a suitable amount of strain in accordance with the amount of the waste input to the destructing unit 200. Therefore, the suitable amount of strain is mixed into the destructed material 10 (see Fig. 8a) output from the destructing unit 200. The destructed material 10 output from the destructed unit 200 is transferred along the first transferring conveyer 400 and input to the compressing unit 500. At the time that the compressed material is output from the compressing unit 500, the

binding unit 600 which are provided to the compressing unit 500 is operated to bind the compressed material with wire. The bound compressed material output from the compressing unit 500 is transferred along the second transferring conveyer 700 and input to the wrapping unit 800. The wrapping unit 800 firstly covers the circumferential surfaces of the compressed material which is transferred from the second transferring conveyer 700 with the wrap.

The firstly wrapped compressed material is output from the wrapping unit 800 and input to the outputting unit 900. The outputting unit 900 overturns the input compressed material and transfers the overturned compressed material to the wrapping unit 800. At the time that the overturned compressed material is returned to the wrapping unit 800, the wrapping unit 800 secondly covers the circumferential surfaces of the overturned compressed material with wrap to completely seal the entire surfaces of the compressed material with wrap. The compressed material of which entire surfaces are completely covered with wrap is re-input to the outputting unit 900. The outputting unit 900 outputs the re- input compressed material. Here, the reference numeral 50 which is not described indicates a pallet on which the completely sealed compressed material which is output from the outputting unit 900 is laid, and if necessary, on which a transferring conveyer is provided to transfer the material to the next process stage.

According to the present invention, the waste is destructed while the strain is input, the destructed material is compressed and bound, and the entire surfaces of the compressed material are completely sealed with the wrap.

Therefore, it is convenient to perform the treatment task such as storing the waste which is treated by the waste treatment apparatus and transferring the

waste to a landfill. Moreover, since effluence of malodor and blowing of dust from the waste are prevented, it is possible to improve the work environment.

In addition, since the waste which is treated by the waste treatment apparatus according to the present invention is compressed, bound with wires, and completely covered with wrap in a certain dimension, the landfill work can be conveniently carried and the work of strengthening the landfill area for minimizing the landfill volume and stabilizing the basis of the landfill area can be further facilitated.

Moreover, according to the present invention, since the strain for facilitating the decomposition of the waste is injected, the decomposition of the buried waste rapidly proceeds so that the time for using the landfill area again can be advanced.

As shown in Figs 2,3 and 6, the destructing unit 200 comprises hydraulic motors 221,222 ; planetary gear transmission unit 231,232 for reducing rotational forces of the hydraulic motors 221,222 and transmitting the rotational forces to shafts 241,242 ; a pair of the shafts 241,242 being driven by the planetary gear transmission units 231,232 and being engaged to each other and reversely rotated; destructing blades 251,252 for destructing the waste, wherein each of the destructing blades is fixed at each of the shafts 241, 242; and a main body 210 having an inputting chamber 211, wherein the above constructional components 221,222, 231,232, 241,242, 251,252 are provided to interlock. In the embodiment two hydraulic motors as driving means for driving the shafts 241,242 are used. However, one hydraulic motor or three or more hydraulic motors may be used for some types of to-be-crushed waste.

Here, the reference numerals 261 and 262 which are not described indicate

couplers for interconnecting the output axes of the planetary gear transmission units 231,232 and the shafts 241,242 or the shafts of the power transmission mechanisms, the reference numerals 281 and 282 indicate spacer rings which are inserted between the destructing blades 251,252, and the reference numerals 271,272 indicates guides for maintaining suitable spaces among the main body 210, the destructing blades 251,252, and the spacer rings 281,282 and guiding the waste toward the destructing blades 251,252.

Now, the operation of the destructing unit 200 will be described.

Firstly, when the hydraulic motors 221,222 are operated, the power of the hydraulic motors 221,222 is transmitted to the shaft 241,242 through the planetary gear transmission unit 231,232, so that the pair of the shafts 241,242 are engaged to each other and rotated reversely, that is, in opposite directions.

Therefore, the destructing blades 251,252 which are fixed along the shafts are also rotated in opposite directions to destruct the waste. Accordingly, the waste which is continuously input to the inputting chamber 211 of the main body 210 in the state that the strain injected from the strain injecting unit 300 is mixed into the waste is destructed by the destructing blades 521,253 which are engaged to each other and reversely rotated, and then, the waste is output to the first transferring conveyer 400 and transferred to the compressing unit 500. It is preferable that the pair of shafts 241,242 have different rotational speeds.

If they have the different rotational speeds, the waste can be destructed in the vertical direction as well as in the horizontal direction thereof so that the destruction function can be improved. The higher the rotational speed of the shafts 241,242 is, the longer the vertical length of the destruction material is.

The lower the rotational speed of the shafts 241,242 is, the shorter the vertical

length of the destruction material is. On the other hand, if the strength of the waste which is input from the destructing unit 200 is strong or the heavy load is given to the hydraulic motors 221,222 due to excessive input amount of the waste, the operation of the destructing unit 200 may be stopped. However, this problem can be avoided by a sensor (not shown) for detecting oil pressure of the hydraulic motors 221,222 in order to repeatedly drive the hydraulic motors 221, 222 in the backward and forward directions in case that the oil pressure of the hydraulic motors 221,222 is over a predetermined value. On the contrary, it is preferable that the operation of the destructing unit 200 is automatically stopped when an extraneous material which is impossible to destruct by the destructing unit 200 is input as waste. Therefore, if the times of driving the hydraulic motors 221,222 in both directions exceeds predetermined times, that is, if the waste is not destructed even by repeating the destruction operation by the predetermined times, the operation of the destructing unit 200 may be constructed to be automatically stopped. In addition, if heavy load is given to the destructing blades 251,252, the corresponding impact may be directly transmitted to the driving axes of the hydraulic motors 221,222 through the paths of power transmission to damage the parts. However, the planetary gear transmission unit 231,232 are used in the embodiment, so that it is possible to avoid the parts from being damaged due to the impact of the destructing blades 251,252. Now, the operation of the planetary gear transmission units 231,232 will be schematically described with reference to Figs 4 and 5. When input axes 231a, 232b are rotated in the counterclockwise direction, the sun gears 231b, 232b which are fixed along the axes are also rotated in the counterclockwise direction and the planetary gears 231d, 232d are engaged to

the sun gears are rotated on their own axes in the clockwise direction while being engaged to the ring gears 231c, 232c which are in fixed states and being revolved in the counterclockwise direction. Therefore, the output axes 231e, 232e are rotated in the counterclockwise direction and their speeds are reduced.

On the other hand, if the impact is transmitted to the output axes 231e, 232e, the impact is distributed into the three planetary gears 231d, 232d to be reduced and then transmitted to the input axes 231a, 232a through the sun gears 231b, 232b.

The destructing unit 200 according to the present invention is not limited to the embodiment above described and any known means for destructing the waste can be employed to the present invention.

With respect to the strain injecting unit 300, any known means for injecting a suitable amount of strain which includes a powder type of strain or a liquid type of strain to the waste which is input from the destructing unit 200 can be employed to the present invention.

As shown in Figs. 7 to 9d, the compressing unit 500 comprises a main body 510 having an input opening 511 and a compressing chamber 512, wherein pressing plates 513a, 513b, 513c constitute both side surfaces and an upper surface of an outlet of the compressing chamber 512, and wherein the pressing plates are fixed to rotate and are pressed by a hydraulic cylinder 514; a pressing block 550 having a cutting blade which is provided to move in the compressing chamber 512 of the main body 510; a hydraulic cylinder 520 for reciprocating the pressing block 550; a hydraulic tank 530 for supply the hydraulic cylinder 520with pressures medium; and a hydraulic pump 540 for controlling pressure of the hydraulic tank 530. Here, the reference numerals

HI, H2, and H3 which are not described indicate hinge axes of pressing plates 513a, 513b, 513c which constitute an outlet of the compressing chamber 512, and the reference numeral 515 indicates an auxiliary frame to which the hydraulic cylinder 514 is provided.

Now, the operation of the compressing unit 500 will be described with reference to Figs 8a to 9d.

Firstly, as shown in Figs 8a and 9a, under the state that the pressing block 550 is moved backwards in the left side, the destructed material 10 is input to the compressing chamber 512 through the input opening 511. When a suitable amount of the destructed material 10 is input to the compressing chamber 512 of the main body 510, as shown in Figs 8b and 9b, the hydraulic cylinder 520 is operated to extend its piston rod and to move the pressing block 550 forwards in the right side. While the destructed material 10 is compressed by the pressing block 550 which is moved forwards in the right side, the compressed materials 21,22 which are pressed by the pressing plates 51 and bound by the wires are gradually pushed out in the right side. According, the states shown in Figs 8c and 9c are obtained. Under the states, if the above- mentioned operation is repeated, the pressure on the destructed material 10 is further increased (23") as shown in Figs 8d and 9d, and accordingly, the wire- bound compressed materials 21,22 are further pushed out in the right side. If the repeating times of the operation are increased, the compressed material 21 which is placed at the utmost right side are finally output from the compressing unit 500 and then transferred to the wrapping unit 800 through the second transferring conveyer 700. On the other hand, under that state that the lower plate 510a of the main body 510 are laid and fixed on the ground and the right

front ends of the pressing plates 513a, 513b, 513c are fixed to rotate about the hinge axes H1, H2, H3, the pressing plates 513a, 513b, 513c are pushed out in the central direction of the outlet of the compressing chamber 512. Therefore, the compression of the destructed material 10 by the pressing block 550 is carried out constantly and smoothly. The pressing force of the compressing unit 500 is determined in accordance with the pressure of the hydraulic cylinder 514,520 which pushes the pressing plates 513a, 513b, 513c and the pressing block 550.

The compressing unit 500 according to the present invention is not limited to the embodiment above described and any know means for compressing the waste to reduce the volume thereof.

As shown in Figs 7 and 9a to 9d, the binding unit 600 comprises a wire supplier 610 being disposed at both sides of the compressing unit 500 to transfer wires Wl, W2 to a wire binder 620; the wire binder 620 for binding the wires WI, W2 which are transferred by the wire supplier 610; and a wire cutter 630 for cutting and separating the wire Wl, W2 which are bound by the wire binder 620.

In the embodiment, as shown in Figs 10 to llb, the wire supplier 610 comprises hydraulic cylinders 611a, 611b ; a moving block being linearly reciprocated by the hydraulic cylinders 611a, 611b ; and pushing arms 613 which are fixed to the moving block 612 and disposed at both sides of the compressing unit 500 while passing through the compressing unit 500 wherein the pushing arm transfers the wires W1, W2 to the wire binder 620. The front ends 613 a of the pushing arms 613 is provided with a pair of rollers which are separately formed to prevent the friction to the wires W1, W2 and the deviation

of the wires Wl, W2. The wire supplier 610 is not limited to the embodiment, and various types of wire suppliers can be employed to the present invention.

In addition, in case of the embodiment, the wire binder 620 comprises a driving motor 621 ; power transmission mechanisms for transmitting power of the driving motor 621 to a binding gear 622; and the binding gear 622 having a inserting groove 622a to which the wires W1, W2 are inserted, wherein the binding gear is rotated by the driving motor 621 to bind the wires W1, W2 inserted to the 622a. Although the wire binder in the same manner as the embodiment is preferable in consideration of operational reliability and shape of the front ends of the bound wires Wl, W2, any known types of wire binder can be employed to the present invention. For example, the wire binder in which the two parts of the wires Wl and W2 is bound with a pair of bending fingers capable of rotating by 360 degree may be used.

The wire cutter 630 comprises a hydraulic cylinder 630; a moving block 632 which is reciprocated upwards and downwards by the hydraulic cylinder 630; and a cutter 622 which is fixed to the moving block 632 and disposed near the one side of the binding gear 622, wherein the cutter cut the wires W1, W2 which are bound by the binding gear 620. The wire cutter 630 is not limited to the embodiment, and any known cutters for cutting the bound wires W1, W2 can be employed to the present invention.

Now, the operation of the binding unit 600 will be described with reference to the Figs 15a to 16.

Firstly, under the initial state as shown in Fig. 15a, the wire supplier 610 is operated and the pushing arms 613 are extended across the compressing chamber 512 of the compressing unit 500. Therefore, as shown in Fig. 15b,

the pair of rollers 613b which are provided to the front ends 613a bite the first wire Wl and are moved toward the direction of the wire binder 620. After that, when the pushing arms are maximally extended, as shown in Figs 15c and 16, the pair of the roller 613b bite the first and second wires Wl and W2 and are moved toward the wire binder 620, and then, the wires Wl and W2 are inserted to the inserting grooves 622a of the binding gears between the pair of rollers 613b. Next, when the driving motor 621 of the wire binder is operated to transmit the driving force of the driving motor to the binding gears through the power transmission mechanisms 623,624, 625, the binding gears twist the first and second wires Wl and W2 to bind. Here, the reference numeral 625 which is not described indicates a secondary gear for being engaged to the binding gear 622 and transmitting power to the binding gear 622, the reference numeral 624 indicates a primary gear for being engaged to the secondary gear 625 and transmitting power to the secondary gear 625, and the reference numeral 623 indicates a chain for interlocking the primary gear 624 to the secondary gear 625. When the bindings of the wires Wl and W2 are completed, the hydraulic cylinder of the wire cutter is operated to move the moving block which is connected to the hydraulic cylinder downwards and to move the cutter 633 which is connected to the moving block downwards, so that the wire binding portion which is exposed to the one side of the binding gear 622 can be cut by the cutter 633. By such a cutting, one side of the connection portion of the first and second wire Wl and W2 binds the compressed material 22 and the other side of the connection portion of the first and second wire Wl and W2 is dragged out towards the outlet of the compressing chamber 512 while being abutted on the one side surfaces of the compressed materials 23'and 23"which

are newly compressed and moved toward the outlet. After that, the above mentioned operation is repeated to binding the compressed material as consecutively individual packs. The resulting bound compressed materials 21, 22 have almost the same size.

As shown in Figs 17 and 18, the wrapping unit 800 comprises a rotator 810 for rotating the bound compressed materials 21,22 ; an auxiliary transferring conveyer 820 which is provided to the rotator to dispose the bound compressed materials 21,22 from the second transferring conveyer 700 at the center of the rotator 810 or to dispose the overturned compressed material from the outputting unit 900 at the center of the rotator 810; a chucking device 830 being provided to a rotator 810 to fasten a front end L'of the wrap from the wrap supplier 840; the wrap supplier 840 for extending the wrap L which is wound and then providing the wrap in a released state; a lifter 850 for reciprocating the wrap supplier 840 upwards and downwards; and a wrap cutter 860 for cutting wrap between the wrapped compressed material and the chucking device 830 at the completion of wrapping.

The rotator 810 comprises a rotating stage 812 which is fixed to pivotally rotate about the shaft H4 by the supporting member 813; and a driving motor 821 for driving the rotating stage 812.

The auxiliary transferring conveyer 820 comprises a driving motor 821; a driving axis 822 which is pivotally rotated by the driving motor 821; driving chain gears 823 which are fixed at both ends of the driving axis 822 and pivotally rotated together with the driving axis 822; and passive chain gears 824 which are connected via the chains 825 and pivotally rotated in accordance with the chains. Although in the embodiment the chain type of conveyer is used, if

necessary, any known types of conveyers including a belt type of conveyer or a roller type of conveyer may be used.

The chucking device 830 comprises a pair of chucking blades 832 of which one side front end is pivotally connected with hinge; and driving mechanisms for individually driving the chucking blades 832. The pair of chucking blades 832 are operated opposite to each other so that they can be abutted to bite the front end L'of the wrap and extended from each other to release the bitten front ends L'of the wrap. The chucking device 830 is not limited to the embodiment, and any known means for fastening the front end L' of the wrap can be employed to the present invention.

The wrap supplier 840 release the wound wrap L and consecutively supplies the released wrap which is in a pulled and extended state. With respect to the wrap supplier 840, various types of wrap suppliers have been developed and one of them may be used.

The lifter 850 comprises a driving motor 851 and a lifting block 852 which is linearly reciprocated upwards and downwards by the driving motor 851.

The wrap supplier which is disposed on the lifting block 852 is linearly reciprocated upwards and downwards. Although, in case of the embodiment, chain is used for the power transmission mechanisms between the driving motor 851 and the lifting block 852, various modified types of the power transmission can be used. For example, in one type of the power transmission, racks and pinions may be used for the lifting, and in another type of the power transmission, screw shafts and nuts may be used for the lifting. Moreover, timing belts may be used for the power transmission mechanisms.

With respect to the wrap cutter 860, any known means for cutting the

wrap between the wrapped compressed material and the chucking device 830, and in the embodiment, electrical heating lines are used for the means for cutting wrap.

Now, the operation of wrapping and the compressed material which is supplied by the second transferring conveyer 700 and then transferring the wrapped compressed material to the outputting unit 900 will be described.

Firstly, the compressed materials 21,22 which are output from the compressing unit 500 are transferred to the wrapping unit 800 by the second transferring conveyer 700. When the transferred compressed materials 21,22 are detected at the position PI by the sensor Sl, the operation of the auxiliary transferring conveyer 820 is started and the compressed materials 21,22 are moved from the second transferring conveyer 700 to the auxiliary transferring conveyer 820. After that, when the compressed materials 21,22 are detected at the position P2 by the sensor S3, that is, when the compressed materials 21, 22 are located at the center of the rotating stage 812, the operation of the auxiliary transferring conveyer 820 are stopped. Next, under the state that the front ends L'of the wrap are fixed at the chucking device 830, the driving motor 811 of the rotating device 810 is started and the rotating stage 812 is rotated in the counterclockwise direction (see Fig. 17). Accordingly, the wrap supplier 840 is moved upwards by the lifter 850 and the wrap covers the circumferential surfaces of the compressed materials 21,22 in a helical manner. At that time, in order that the chucking device 830 is not covered with the wrap, at the time that the rotating stage 812 is rotated by one rotation, the chucking blade 832 of the chucking device 830 is extended to release the bitten front ends L'of the wrap and then mounted on the inner portion of the rotating stage 812. Like

this, under that state that the rotating stage is being rotated, when the lifting of the warp supplier 840 is detected by the sensor S6, the operation of the lifter 850 is temporally stopped and then is carried out in the backward direction, so that the wrap supplier 840 is moved downwards. Next, when the descending of the wrap supplier 840 is detected by the sensor S5, after the rotating stage 812 is rotated by a predetermined times, and then stopped at the exact position at which the detecting portion 812a of the rotating stage 812 is detected by sensor S2. The sensor S2 is used to detect the rotation times and the stop position of the rotating stage 812. After that, the chucking device 830 is operated and the chucking blades 832 are abutted to bite the front ends L'of the wrap. Next, the wrap cutter 860 is operated to cut the wrap which is disposed between the wrapped compressed materials and the chucking device 839. Like this, when the first wrapping of the compressed materials is completed, the auxiliary transferring conveyer 820 and the conveyer 910 of the outputting unit 900 are operated to output the firstly wrapped compressed materials from the wrapping unit 800 and transfer them along the conveyer 910. After that, when the firstly wrapped compressed materials are detected at position P3 by sensor S7, the operation of the conveyer 910 is stopped. At that time, the upper and lower surfaces of the firstly wrapped compressed material are not in a wrapped state.

As shown in Figs 17 and 19a to 19d, the outputting unit 900 comprises a conveyer 910 for returning the compressed material to the wrapping unit 800 or for outputting the compressed materials of which entire surfaces are completely covered; and an overturning member 920 for overturning the compressed material 20 which is input from the wrapping unit 800 by 90 degree.

The conveyer 910 comprises a driving motor 911; a driving axis 912

which is pivotally rotated by the driving motor 911; driving chain gears 913 which are fixed at both ends of the driving axis 912 and pivotally rotated together with the driving axis 912; and passive chain gears 914 which are connected via the chains 825 and pivotally rotated in accordance with the chains.

Although in the embodiment the chain type of conveyer is used, if necessary, any known types of conveyers including a belt type of conveyer or a roller type of conveyer may be used.

The overturning unit 920 comprises a first crane arm 921 being pivotally rotating about a hinge axis H5 to crane and overturn the compressed material 20 laid on the conveyer 910; a hydraulic cylinder 922 for driving the first crane arm 921; a second crane arm 923 being pivotally rotating about the hinge axis H5 to support the compressed material overturned by the first crane arm 921 and to lay the compressed material on the conveyer 910; and a hydraulic cylinder 924 for driving the second crane arm 923. The overturning unit 200 is not limited to the embodiment described above and any means for overturning the firstly wrapped material 20 can be employed to the present invention.

Now, the operation of the outputting unit 900 will be described.

Firstly, as shown in Figs 17 and 19a, when the firstly wrapped compressed material 20 is laid on the conveyer 910 of the outputting unit 900 and stopped, as shown in Figs 91b and 91c, the first and second crane arms 921, 923 are rotated about the hinge axis H5 by means of the hydraulic cylinders 922, 924 of the overturning unit 920 and the compressed material 20 craned by the first crane arm 921 is overturned and laid on the second crane arm 923. After that, as shown in Fig. 19d, the first and second crane arms 921,923 are returned in the initial states by the hydraulic cylinder of the overturning unit 920, and

then, the overturned compressed material 20 is laid on the conveyer 910. Here, the reference numeral Y which is not described indicates a vertical line and 01, 82 indicate angles between the diagonal line and the vertical line in Figs 19b and 19c, respectively. Next, the conveyer 910 of the outputting unit 900 and the auxiliary transferring conveyer 820 of the wrapping unit are operated in backward directions to supply the rotating stage 812 with the overturned compressed material 20. When the overturned compressed material 20 is detected at the position P2 by sensor S4, the operation of the auxiliary transferring conveyer 820 and the conveyer 910 of the outputting unit 900 are stopped. After that, the wrapping unit 800 is operated to secondly wrap the compressed material 20. When the second wrapping of the compressed material 20 is completed, the auxiliary transferring conveyer 820 and the conveyer 910 of the outputting unit 900 are operated and the compressed material of which entire surfaces are completely covered is output from the wrapping unit 800 and transferred along the conveyer 910 for outputting.

The present invention is not limited to the above described embodiment, but its various modifications can be made without departing from the accompanied claims.

For example, although the attaching, covering and cutting of the wrap are automatically carried out by the wrapping unit 800 in the embodiment, if necessary, the attaching and the cutting of the wrap may be manually carried out by a simpler wrapping unit. Moreover, a wrapping unit for attaching the wrap in the vertical direction other than the horizontal direction may be used.

In addition, the method of interlocking the second transferring conveyer 700, the wrapping unit 800, and the outputting unit 900 may be modified, if

necessary. Furthermore, the number of the associated sensors Sl, S2, S3, S4, S5 may be increased or decreased suitably in accordance with the operational control of the associated units and the method of interlocking the units.

On the other hand, with respect to the inputting conveyer 100, the first transferring conveyer 400, and the second transferring conveyer 700, suitable ones out of any known ones may be used in consideration of types, shapes, and weights of the transferred materials.

INDUSTRIAL AVAILABILITY As described above, the present invention has an advantage that since the waste is destructed while the strain is input, the destructed material is compressed and bound, and the entire surfaces of the compressed material are completely sealed with the wrap, it is convenient to perform the treatment task such as storing the waste which is treated by the waste treatment apparatus and transferring the waste to a landfill. Moreover, the present invention has another advantage that since effluence of malodor and blowing of dust from the waste are prevented, it is possible to improve the work environment.

In addition, In addition, the present invention has still another advantage that since the waste which is treated by the waste treatment apparatus according to the present invention is compressed, bound with wires, and completely covered with wrap in a certain dimension, the landfill work can be conveniently carried and the work of strengthening the landfill area for minimizing the landfill volume and stabilizing the basis of the landfill area can be further facilitated.

Moreover, the present invention has further advantage that since the strain for facilitating the decomposition of the waste is injected, the decomposition of the buried waste rapidly proceeds so that the time for using the landfill area again can be advanced.