JUNG, Moon-Il (108-20, Bangnim-dong Nam-gu, Gwangju 503-050, , KR)
Claims
[1] A waste sorting apparatus with a wobbling breakup unit comprising: a waste feeding unit which feeds construction waste; a fan- shaped vibrating screen having a number of spokes arranged at certain spaces, which is disposed below a discharge end of the waste feeding unit to sort the waste falling down from the waste feeding unit according to grain diameter through the spaces between the spokes; a double trommel having sorting holes of different diameters to sort the waste having a relatively small grain diameter which has passed through the fan-shaped vibrating screen according to grain diameter through the sorting holes while the trommel rotates by the a driving device; a wobbling breakup unit disposed between the waste feeding unit and the fan- shaped vibrating screen to breakup the waste freely falling from the waste feeding unit; and a hot air dryer having an air blowing port disposed below a discharge end of the wobbling breakup unit to dry the waste discharged from the wobbling breakup unit.
[2] The waste sorting apparatus according to claim 1, wherein the wobbling breakup unit includes a wobbling chute having one end portion rotatably mounted on a frame disposed below the discharge end of the waste feeding unit through a bearing, a driving motor, a wobbling guide shaft disposed at a middle portion of the wobbling chute in a width direction of the wobbling chute to rotate by a rotational force of the driving motor, and a number of cams respectively disposed eccentrically with respect to the wobbling guide shaft to wobble the wobbling chute by rotation of the wobbling guide shaft while supporting a bottom portion of the wobbling chute.
[3] The waste sorting apparatus according to claim 2, further comprising an anti- impact device disposed between the cams and the wobbling chute to prevent impact of the wobbling chute.
[4] The waste sorting apparatus according to claim 3, wherein the anti- impact device includes a rotation shaft disposed at a bottom portion of the wobbling chute in a width direction of the wobbling chute to be mounted to idly rotate through a bearing, and buffer rollers coupled with the rotation shaft to respectively correspond to the cams.
[5] The waste sorting apparatus according to any one of claims 2 to 4, wherein the waste feeding unit is a belt conveyor including a driving drum, a following drum and a belt, and a rotational force of the driving motor is transferred to the driving drum of the belt conveyor such that the wobbling guide shaft rotates by the rotational force of the driving motor transferred through the driving drum of the belt conveyor.
[6] The waste sorting apparatus according to claim 5, further comprising an anti- separation plate made of an elastic material and disposed at an entrance end of the wobbling chute while a free end portion of the anti-separation plate is in contact with the belt conveyor to prevent separation of the waste supplied from the belt conveyor. |
Description
WASTE SORTING APPARATUS WITH WOBBLING BREAKUP
UNIT
Technical Field
[1] The present invention relates to a waste sorting apparatus with a wobbling breakup unit, and more particularly to a waste sorting apparatus with a wobbling breakup unit capable of increasing sorting efficiency to separate mixed waste when sorting buriable waste into incineratable, combustible waste, recyclable earth and sand, waste concrete and the like. Background Art
[2] Recyclable construction waste such as concrete, reinforcing rods, wood, daily waste, clothes, waste vinyl and the like have been buried in the ground because it is difficult to sort them regarding the aspects of treatment technology and cost.
[3] However, environmental pollution is caused by high-density composite chemical seepage water produced from the buried waste and a large amount of gases (CO, CO , CH , H , etc.) generated during microbial decomposition of organic matter in the
4 2 buried waste. Treatment technologies of buried waste have been studied due to such environmental pollution and recent residential land development.
[4] In a conventional apparatus for sorting buriable waste, generally, the buriable waste is charged into a punching plate-shaped trommel and, then, sorted out.
[5] However, the buriable waste includes a recyclable, incombustible material such as earth and sand, a mass of concrete, bricks and stone, and an unrecyclable, combustible material such as vinyl cloth, wood blocks and clothes in a mixed state. Further, the buriable waste has a high percentage of water content. Accordingly, the conventional apparatus for sorting waste cannot efficiently sort the buriable waste.
[6] Specifically, buriable waste charged into a hopper is fed to a trommel by a plate- shaped vibrating feeder. However, since the buriable waste has a high percentage of water content, it is difficult to feed the buriable waste by vibration of the vibrating feeder. Accordingly, the buriable waste is frequently prevented from being fed. Further, since there is no structure for breaking up the buriable waste to be charged, the buriable waste is charged at once without breaking up. Accordingly, the trommel is clogged and earth and sand cannot be sorted out.
[7] Further, in the conventional technologies, the buriable waste is sorted into earth and sand and combustible waste while removal of water from the buriable waste is not taken into account. Thus, there are problems such that sorting and burning efficiencies are poor.
Disclosure of Invention
Technical Problem
[8] Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a waste sorting apparatus with a wobbling breakup unit capable of solving problems such as a stationary state and adherence of waste having a high percentage of water content by breaking up the waste to be supplied to the trommel and increasing sorting efficiency by removing water from the waste before the waste is supplied to the trommel.
[9] Further, it is another object of the present invention to prevent sorting holes from being clogged due to the buriable waste and malfunction of the apparatus. Technical Solution
[10] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of a waste sorting apparatus with a wobbling breakup unit comprising a waste feeding unit which feeds construction waste; a fan- shaped vibrating screen having a number of spokes arranged at certain spaces, which is disposed below a discharge end of the waste feeding unit to sort the waste falling down from the waste feeding unit according to grain diameter through the spaces between the spokes; a double trommel having sorting holes of different diameters to sort the waste having a relatively small grain diameter which has passed through the fan- shaped vibrating screen according to grain diameter through the sorting holes while the trommel rotates by a driving device; a wobbling breakup unit to breakup the buriable waste supplied from the waste feeding unit by wobbling; a hot air dryer to dry the buriable waste broken up by the wobbling breakup unit; and a sorting unit to sort the buriable waste dried by the hot air dryer into earth and sand and combustible waste.
Advantageous Effects
[11] As described above, according to a waste sorting apparatus with a wobbling breakup unit of the present invention, the buriable waste with contents adhered to each other is wobbled to breakup the buriable waste due to physical impact and then dried by hot air while the buriable waste is fed. Thus, it is possible to prevent a stationary state of the buriable waste and efficiently dry the buriable waste. Further, it is possible to increase sorting efficiency of the buriable waste and prevent sorting holes from being clogged.
[12] As a result, since the sorted earth and sand and combustible waste is in a dried state, most of earth and sand is separated from the combustible waste, and only the combustible waste serving as an incineration object is supplied into an incinerator. Thus, it is possible to reduce fuel for incineration of the combustible waste and obtain high-quality earth and sand.
Brief Description of the Drawings
[13] The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
[14] Fig. 1 shows a plan view of a waste sorting apparatus with a wobbling breakup unit according to the present invention;
[15] Fig. 2 shows a cross-sectional view of the waste sorting apparatus with the wobbling breakup unit according to the present invention;
[16] Fig. 3 shows a perspective view of the wobbling breakup unit which is applied to the waste sorting apparatus according to the present invention;
[17] Fig. 4 shows a cross-sectional view of the wobbling breakup unit which is applied to the waste sorting apparatus according to the present invention; and
[18] Fig. 5 shows a configuration of the wobbling breakup unit which is applied to the waste sorting apparatus according to the present invention. Best Mode for Carrying Out the Invention
[19] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[20] As shown in Figs. 1 and 2, a waste sorting apparatus 100 with a wobbling breakup unit according to the present invention includes a hopper 110 which buriable waste containing waste vinyl, daily waste, earth and sand, lightweight aggregate, and reinforcing rods in a mixed state (hereinafter, simply referred to as waste ) is charged into, a belt conveyor 120 which feeds the waste charged into the hopper 110, a trommel 130 which sorts the waste fed by the belt conveyor 120 into incineratable, combustible waste and recyclable earth and sand, a wobbling breakup unit 140 which breaks up the waste freely falling from the belt conveyor 120 to the trommel 130, a hot air dryer 150 (shown in Fig. 2) which applies hot air to the waste broken up through the wobbling breakup unit 140 to remove water from the waste, and a fan-shaped vibrating screen 160 (shown in Fig. 2) disposed at the entrance side of the trommel 130 to separate aggregate larger than a specified size from the waste which has passed through the wobbling breakup unit 140.
[21] As shown in Fig. 2, the belt conveyor 120 includes a driving drum 121, a following drum 122 and a belt 123 which infinitely rotates to be wound around the driving drum 121 and the following drum 122. The belt conveyor 120 feeds the waste charged into the hopper 110 to the trommel 130 for the following step.
[22] Although various daily waste, earth and sand, reinforcing rods and the like included in the waste are adhered to each other in a mass due to water, the waste is broken by the wobbling breakup unit 140 and dried by hot air before the waste is
supplied to the trommel 130. Accordingly, it prevents the trommel 130 from being clogged due to the waste.
[23] Since the waste has a high percentage of water content, sorting holes may be clogged with the waste when it passes through the trommel 130. In order to minimize the clogging, the trommel 130 is configured to have a mesh structure such that a number of rods having a circular section are combined in a grid and the sorting holes are formed between the rods. That is, since the rods have a circular section, the waste slides on the rods without being adhered to the rods, thereby preventing the sorting holes from being clogged. The rods may be formed of stainless steel (SUS) which is not corroded by water.
[24] The trommel 130 may have a single cylindrical structure or a double structure wherein trommels with different diameters are combined. It is preferable to employ the double structure capable of more efficiently sorting the waste.
[25] Although not shown in the drawings, the trommel 130 may be mounted in a sealed case and further include a high pressure sprayer 170 in an upper portion of the trommel 130.
[26] As shown in Figs. 3 and 4, the wobbling breakup unit 140 is disposed at a position lower than a discharge part of the belt conveyor 120 to wobble the waste falling down from the belt conveyor 120, thereby breaking up the waste with contents adhered to each other. Specifically, as shown in Fig. 5, the wobbling breakup unit 140 may include a wobbling chute 143 mounted on a frame 141 disposed below the discharge part of the belt conveyor 120 to be rotatable around a rotation guide shaft 142, a driving motor 144 (shown in Fig. 3), a wobbling guide shaft 145 disposed at a middle portion of the wobbling chute 143 in a width direction of the wobbling chute 143 to be rotated by a rotational force of the driving motor 144, and at least one cam 146 disposed eccentrically with respect to the wobbling guide shaft 145 to wobble the wobbling chute 143 by rotation of the wobbling guide shaft 145 while supporting a bottom portion of the wobbling chute 143.
[27] By such configuration, when the cam 146 is rotated by a rotation force of the driving motor 144, the wobbling chute 143 wobbles due to a phase difference of the cam 146 while rotating around the rotation guide shaft 142 of a leading end portion to break up the waste falling down to the wobbling chute 143.
[28] On the other hand, since the wobbling chute 143 collides with the cam 146 at high impact energy when the wobbling chute 143 wobbles, the cam 146 and the wobbling chute 143 may be damaged in a short period of time. Accordingly, a buffer roller 147 may be further disposed therebetween to prevent impact and damage. The buffer roller 147 is coupled with a rotation shaft 148 to be in contact with the cam 146, wherein the rotation shaft 148 is disposed at a bottom portion of the wobbling chute 143 in a width
direction of the wobbling chute 143 to be mounted to idly rotate through a bearing. The buffer roller 147 absorbs and attenuates impact energy generated when the wobbling chute 143 wobbles while being rotated by a rotation force of the cam 146.
[29] The belt conveyor 120 rotates and the wobbling chute 143, which is made of a material having a great strength, wobbles, thereby causing a distance between the belt conveyor 120 and the wobbling chute 143. Since waste falling down from the belt conveyor 120 may be separated from the wobbling chute 143 through the distance, an anti-separation plate 149 is disposed therebetween. The anti-separation plate 149, which is made of an elastic material, is connected to the wobbling chute 143 while a free end portion of the anti-separation plate 149 is in contact with the belt conveyor 120. Accordingly, the anti-separation plate 149 can introduce waste falling down from the belt conveyor 120 to the wobbling chute 143 without interrupting the rotation of the belt conveyor 120.
[30] The wobbling breakup unit 140 employs the driving motor 144 as a driving source.
The belt conveyor 120 also employs the driving motor 144 as a driving source. The wobbling chute 143 and the belt conveyor 120 commonly use the driving motor 144 as a driving source to curtail the cost and simplify the structure. For this, as shown in FIG. 3, the driving motor 144 transmits a rotational force to the driving drum 121 of the belt conveyor 120 through a decelerator 144a. The decelerator 144a is not a requisite component and is selectively used to minimize the rotation of the wobbling guide shaft 145. The driving drum 121 transmits a rotational force to the wobbling guide shaft 145. A rotational force is transmitted between the components through the belt.
[31] As shown in Fig. 2, the hot air dryer 150 may include a fan 151 which forcibly blows air, a heater 152 which heats the air blown by the fan 151, and a hot air jetting pipe 153 which supplies the heated air to waste freely falling down from the belt conveyor 120 to dry the waste.
[32] The fan-shaped vibrating screen 160 includes a number of spokes arranged to be spaced from each other. The fan-shaped vibrating screen 160 is disposed below the discharge end of the waste feeding unit to sort the waste falling down from the waste feeding unit according to grain diameter through spaces between the spokes. The fan- shaped vibrating screen 160 according to the present invention is provided to freely control a speed of waste having unexpectable properties and minimize the impact noise. The fan-shaped vibrating screen 160 is disposed at the entrance side of the trommel 130 to sort construction waste falling down from the waste feeding unit according to grain diameter. Specifically, the fan-shaped vibrating screen 160 may include a frame disposed at the lower entrance side of the trommel 130, a shaft arranged in the width direction of the frame to rotate by being connected to a vibration
motor via a belt, and a number of plate-shaped spokes arranged on the shaft at certain spaces. The spokes may be arranged on the shaft such that spacing and an angle of the spokes can be controlled.
[33] The operation of the above-configured waste sorting apparatus with a wobbling breakup unit according to the present invention will be described.
[34] The waste is charged into the hopper 110 by heavy equipment to be fed by the belt conveyor 120. The belt conveyor 120 feeds the waste along the belt 123 which rotates by a driving force of the driving motor 144. In this case, the rotation of the wobbling guide shaft 145 connected to the driving drum 121 of the belt conveyor 120 causes the rotation of the cam 146, whereby the wobbling chute 143 wobbles. Specifically, as shown in Fig. 4, a state where top dead center of the cam 146 is directed downward is set as a reference state during the rotation of the wobbling guide shaft 145. If top dead center of the cam 146 is directed upward due to rotation of the wobbling guide shaft 145, the wobbling chute 143 rotates counterclockwise by the rotation guide shaft 142. If top dead center of the cam 146 is directed downward again, the wobbling chute 143 rotates clockwise. That is, the wobbling chute 143 wobbles with respect to the rotation guide shaft 142 at one side of the wobbling chute 143 while the other side of the wobbling chute 143 reciprocates in opposite directions. When the wobbling chute 143 wobbles, the buffer roller 147 absorbs impact between the wobbling chute 143 and the cam 146, thereby reducing abrasion of parts and impact noise.
[35] The waste falls down to the wobbling chute 143 through the belt conveyor 120.
The anti-separation plate 149 coupled to one end portion of the wobbling chute 143 is in elastic contact with the belt 123 of the belt conveyor 120. Accordingly, the anti- separation plate 149 prevents the waste from being separated from the wobbling chute 143 without restricting the rotation of the belt 123.
[36] As described above, while the wobbling chute 143 wobbles, the waste is wobbled to disperse contents of the waste adhered to each other. Further, the wobbling chute 143 transfers the waste for the following step without a stationary state.
[37] The waste with contents dispersed due to wobbling of the wobbling chute 143 freely falls down from the wobbling chute 143. During free-fall of the waste, water contained in the waste is removed by hot air blown from the hot air dryer 150, thereby drying the waste.
[38] The waste supplied from the wobbling chute 143 falls down to the fan-shaped vibrating screen 160. Aggregate and the like having a diameter of, for example, 100 D or more in the waste are sorted out by the fan-shaped vibrating screen 160 to be provided to a belt conveyor 161 disposed at the lower side thereof. Aggregate and combustible waste having a diameter of, for example, 100 D or less are supplied into the trommel 130.
[39] The waste supplied into the trommel 130 has been dispersed and dried by the wobbling breakup unit 140 and the hot air dryer 150 such that contents of the waste such as daily waste, earth and sand, and lightweight aggregate, which are adhered to each other due to water, are separated from each other. Accordingly, when the waste passes through the trommel 130, contents of the waste are sorted into groups (daily waste having a diameter of 50 D or more, aggregate having a diameter of 30 ~ 50 D, and earth and sand having a diameter of 30 D or less) according to type. The daily waste, lightweight aggregate, earth and sand, reinforcing rods and the like, which are separated by the trommel 130, may be transferred to an incinerator, crushing equipment and the like by a transfer conveyor or may be temporarily loaded at the outlet of the trommel 130 and then transferred by a transport vehicle. For example, the combustible waste (daily waste, clothes, waste vinyl and the like) is charged into the incinerator to be incinerated. The lightweight aggregate, earth and sand, and reinforcing rods are recycled through a separate process. The reinforcing rods are separated by a magnet and the like while the reinforcing rods are transferred together with the combustible waste by the transfer conveyor.
[40] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Industrial Applicability
[41] The present invention discloses a sorting apparatus for sorting waste containing construction waste such as concrete, reinforcing rods, wood, daily waste, clothes, waste vinyl and the like according to type. The sorting apparatus according to the present invention allows production of products without high costs and can be easily operated at the current technological level. Thus, the present invention has extremely high industrial applicability. Further, it is possible to enhance quality of the produced products (recycled aggregate).