JP4300516B2 - Sorting method for mixed waste such as earth and sand - Google Patents

Description

  The present invention relates to a method for sorting earth and sand / mixed waste.

  It may be necessary to dispose of the waste at an illegal dumping site. Even when waste is collected by a contractor or the like, it is not always sorted out at the time of disposal. It is desirable to sort wastes by type when disposing of them.

As a conventional method for sorting mixed waste such as earth and sand, there is a method of sorting waste using a sorter such as Trommel as in the invention of Patent Document 1, but the waste must be transported to the apparatus. Or may need to be newly installed. In addition, there is a wind turbine capable of traveling as in the invention of Patent Document 2.
Japanese Patent Laid-Open No. 7-80410 JP 2000-330441 A

  However, at the illegal dumping site of waste, there are cases where it is difficult to carry it to the disposal site because the amount of waste is large or the waste is mixed with the soil even if it is to be disposed. From the viewpoint of environmental protection and resource protection, waste should be sorted out as much as possible, and recyclable ones should be reused.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a method capable of further finely sorting earth and sand / mixed waste while saving as much labor and cost as possible.

In order to solve the above-described problems, the present invention provides a trommel 5e, a picking conveyor 6c, a permanent magnet 7b, a wind turbine 8d, a conveyor 8g, and the like at an actual dumping site such as an illegal dumping site or a final disposal site. The preparatory process 2 for arranging each processing equipment, the chemical mixing process 3 for mixing and stirring the chemicals that insolubilize harmful substances in the contaminated soil after the preparatory process 2 and waiting for a fixed time, and the chemical mixing A primary sorting step 4 in which a large waste is removed after the step 3 by removing a bottom portion of the basket, a horizontal frame and a vertical frame are assembled in a lattice shape, and a net-like bucket provided with a plurality of gaps in the basket portion, and the primary sorting. a sorter step 5 of selecting diverted soil using trommel mobile having a linking moiety capable of binding to a towing vehicle after the step 4, the picking for members after the sorting machine process 6 waste plastics And a hand sorting process 6 for removing wood chips, a magnetic separator process 7 for removing iron scraps with a permanent magnet after the manual sorting process 6, and a wind power for sorting heavy concrete and light waste after the magnetic separator process 7 sorting step 8 because Do Ri, the trommel has inlet 5d is open to the front upper surface, the working time is supported 5k for supporting the front of the trommel, 5k is is provided with the outer peripheral surface of the trommel The folding net 12b attached to the gap 12f between the frame 12a and the frame 12a is welded in a zigzag pattern in which the welding positions 12e of the net 12c and the clasp 12d are alternately turned up and down, and the roller 13 for turning the trommel It was set as the structure of the sorting method of mixed wastes, such as earth and sand characterized by the wheel being only the iron wheel 13d .

  Since this invention is the above structure, the following effects are acquired. First, since the sorter such as the trommel is mobile, it is possible to reduce the labor and cost of installation and reduce illegal dumping of waste.

  Secondly, by sorting with a sorter such as a trommel, sorting with picking personnel, sorting with a magnetic separator using permanent magnets and sorting with a wind machine, it becomes possible to sort more finely, Depending on the type, it can be disposed of by landfill or reuse.

  Even if the number of types of waste to be sorted increases, we prepared a sorting method according to the characteristics of the waste.

Below, based on an accompanying drawing, the sorting method of mixed wastes, such as earth and sand which is the present invention, is explained in detail. FIG. 1 is a diagram showing a flow of a method for sorting mixed waste such as earth and sand according to the present invention. Flow 1 of the sorting method for mixed waste such as earth and sand includes an installation preparation process 2 , a chemical mixing process 3 , a primary sorting process 4 , a sorting machine process 5 , a manual sorting process 6 , a magnetic separator process 7 and a wind sorting process 8 .

The installation preparation process 2 is a process of arranging processing equipment on a site where the waste is actually sorted, such as an illegal dumping site or a final disposal site. The location where the waste is discharged is determined, and the line is configured so that a series of operations can be performed as shown in FIG.

  In the arrangement, the large trommel 5e can be moved so that it can be directly moved 11 to the illegal dumping site, etc., and it is possible to finely adjust the location in the site. Compared with the case where the equipment is carried to the facility for processing or fixed equipment is installed, the running cost and the installation cost can be kept low.

The chemical mixing step 3 is a step of making the contaminated soil insoluble by mixing an additive such as Fuji Beton B agent with the contaminated soil at the illegal dumping site or the final disposal site. This is because it becomes difficult to sort waste if harmful substances are dissolved in the soil.

  The amorphous mixed waste 3a dug up from the ground is stirred while mixing the chemicals, and then waits for 24 to 48 hours. The mixed waste 3a has a drug effect and is stabilized so that harmful substances do not dissolve.

The primary sorting step 4 is a step in which a large-sized waste (large) 4a is removed in advance by using the excavator 4c in which the ridge portion is replaced with a special net-like bucket 10c. A power shovel 4c having a net-like bucket 10c is shown in FIG. In the net-like bucket 10c, small waste or the like falls from the gap 10e, so that only the waste (large) 4a can be separated.

  The waste (large) 4a is removed because the large size can be easily sorted without using a sorter such as the trommel 5e. This is because the size and weight are so large that the inside may be damaged.

In the primary sorting step 4 , iron scraps (large) 4b are also sorted in some cases. This is because the iron scraps (small) 7a are sorted in the magnetic separator step 7 , but if the large size is mixed, the iron scraps (large) 4b may block and stop the flow.

The iron scraps (large) 4b can be removed by hanging the magnet on a heavy machine or the like and embedding the magnet in the mixed waste 3a and then pulling it up. At this time, since the iron scraps (small) 7a can be removed together, the magnetic separator step 7 can be omitted.

The sorter process 5 is a process of sorting 14c into high-quality diverted soil 5a that can be landed and other waste using a sorter such as a trommel 5e. The sorter process 5 such as the trommel 5e is shown in FIGS. The inside of the trommel 5e is rotated 13a, the mixed waste 3a is stirred 14a and separated 14b, and the diverted soil 5a is sorted 14c and discharged.

  In the trommel 5e, the sorting 14c is performed according to the size of the waste. Those having a size of 10 millimeters to 80 millimeters or less are slipped down from the trommel 5e and are reclaimed as diverted soil 5a. Larger ones are selected by the following and subsequent steps.

The hand sorting process 6 is a process of sorting waste plastics (large) 6a and wood chips (large) 6b from the mixed waste 3a which has not been sorted 14c by the trommel 5e with the hands of the picking personnel 6d. is there. The manual selection process 6 is shown in FIG. The number of picking members 6d is about 2 to 8, and each picking member 6d selects and selects the material with eyes or hands.

  The mixed waste 3a coming out of the trommel 5e flows on the picking conveyor 6c. The waste to be sorted is removed by the picking personnel 6d and collected in the stock yard 9 for each type. The mixed waste 3a that has not been sorted is directly flowed to the picking conveyor 6c and proceeds to the next step.

As shown in FIG. 10 , the magnetic separator step 7 is a step of selecting iron scraps (small) 7a by the permanent magnet 7b. The magnetic separator 7 is installed in the middle of the picking conveyor 6c, and can be attracted by a magnet such as iron scrap (small) 7a from the mixed waste 3a that has not been selected by the picking personnel 6d. Remove.

  The waste drawn by the permanent magnet 7 b is collected in the stock yard 9. The mixed waste 3a that has not been attracted by the magnet is flowed to the picking conveyor 6c as it is and is sorted by the next step.

The wind sorting process 8 is a process of sorting the mixed waste 3a by blowing off with the wind 8e. The wind power selection process 8 is shown in FIGS. The wind power is about 50 to 70 meters per second, and small and light waste plastics (small) 8a and wood chips (small) 8b are blown away with the wind 8e and collected. The collected waste is landfilled if it can be landfilled.

  Large and heavy concrete 8c that is not blown by the wind 8e is transferred from the picking conveyor 6c to the conveyor 8g, and is carried by the conveyor 8g and collected in one place. Concretes 8c and the like are reused as those that can be recycled.

FIG. 2 is a plan view showing the entire line after the installation preparation step and the chemical mixing step of the method for sorting mixed waste such as earth and sand according to the present invention. In the installation preparation process 2 in FIG. 1, the trommel 5e, the picking conveyor 6c, the permanent magnet 7b, the wind machine 8d, the conveyor 8g, and the like are installed so that the sorting machine process 5 to the wind sorting process 8 can be performed as a series of operations.

  Vehicles such as a power shovel 5b for loading the mixed waste 3a into the trommel 5e 5h, a power shovel 4c having a net-like bucket 10c, and a dump truck 3b for transporting the mixed waste 3a are also prepared.

A stock yard 9 for collecting several picking personnel 6d in the manual sorting process 6 and temporarily storing the sorted waste is also provided at an appropriate position. The range for discharging the high-quality diverted soil 5a and the range for discharging the concrete 8c are also determined to some extent. Further, the surroundings are surrounded by a net 8f so that waste plastics (small) 8a or wood chips (small) 8b, etc., blown by the wind turbine 8d do not go outside.

  Since the insertion port 5d on the upper surface of the trommel 5e is at a slightly higher position, a power shovel 5b for charging the mixed waste 3a into the trommel 5e 5h is provided with a scaffold 5c so that the insertion port 5d can be easily seen.

  A side conveyor 5g is connected to the discharge port 5f of the trommel 5e, and is extended to a location where high-quality diverted soil 5a is discharged. The conveyor 8g is also installed at a position where the waste falling 15b from the picking conveyor 6c can be received and extended to a place where the concrete 8c is discharged.

In drug mixing step 3 in FIG. 1, the additive inclusive contaminated soil mixed waste 3a addition, since some time at after stirring by excavators 5b, etc., the primary selection step 4 the mixed waste 3a by dump truck 3b Carry to the place to do. Alternatively, the primary sorting 4 may be performed at a place where the mixed waste 3a is present and then transported by the dump truck 3b.

In the primary sorting step 4 in FIG. 1, the mixed waste 3a carried by the dump truck 3b is removed from the large size waste 4a by the power shovel 4c having the net-like bucket 10c, and then placed in the place of the trommel 5e. Carried to.

In addition, when it is judged that it is better to remove the iron scraps (large) 4b first in the primary sorting step 4 than to sort the iron scraps (large) 4b in the magnetic separator step 7 in operation. Then, sort in advance using a heavy machine with a magnet suspended.

In the sorter step 5 of FIG. 1, the mixed waste 3a is thrown 5h from the loading port 5d on the upper surface of the trommel 5e by the power shovel 5b, and sorting 14c is performed by moving while rotating inside the trommel 5e.

  The diverted soil 5a having a small size that has been sorted 14c is discharged from the discharge port 5f onto the side conveyor 5g to the outside. Since the diverted soil 5a is of high quality, it is disposed of on the spot or by being transported to another landfill site.

  The mixed waste 3a that has not been sorted 14c by the trommel 5e passes through the inside of the trommel 5e and is placed on the picking conveyor 6c for subsequent sorting. In the picking conveyor 6c, the manual sorting 6, the magnetic separator 7 and the wind sorting 8 are performed.

In the manual sorting process 6 of FIG. 1, several picking personnel 6d remove by hand while checking the waste plastics (large) 6a and wood chips (large) 6b to be sorted from both sides of the picking conveyor 6c. To go.

  When the number of picking personnel 6d is large, it is possible to work efficiently if each person identifies the waste to be sorted. The sorted waste is temporarily placed in the stock yard 9 and then disposed of appropriately for each waste.

In the magnetic separator process 7 of FIG. 1, iron scraps (small) 7a are sorted by the permanent magnet 7b with respect to the mixed waste 3a that is moving on the picking conveyor 6c. If the iron scraps (small) 7a are also removed in the primary sorting step 4 , they can be omitted.

In the wind power sorting step 8 in FIG. 1, the mixed waste 3a discharged from the picking conveyor 6c is sorted by the wind machine 8d. The wind machine 8d sends the wind 8e toward the exit direction of the picking conveyor 6c, and blows away waste plastics (small) 8a, wood chips (small) 8b, and the like that are light in weight.

  The blown-out waste does not go out of the range because the periphery is covered with the net 8f. Most light items are skipped, but they can be sorted by the fall position depending on the material and size. The collected waste is landfilled if it can be landfilled.

  Concrete 8c that is not blown away by the wind turbine 8d is discharged from the picking conveyor 6c through the conveyor 8g. The collected concrete 8c is disposed of by being handed over to a contractor or the like for reuse.

FIG. 3 is a side view of the entire line of the method for sorting mixed waste such as earth and sand according to the present invention. The equipment used in the sorting from the sorter process 5 to the wind sorting process 8 in FIG. 1 is shown.

  The mixed waste 3a input from the input port 5d by the sorter 5 is carried to the drum 12 inside the trommel 5e by the internal conveyor 5i. The diverted soil 5a selected 14c by the trommel 5e is transported from the discharge port 5f to the side conveyor 5g and discharged 15.

  The mixed waste 3a that has passed through the trommel 5e is carried on the picking conveyor 6c. The picking conveyor 6c has a high direction of movement 15a so that the mixed waste 3a does not roll, and is provided with slipping so as not to fall in the reverse direction.

  In the picking conveyor 6c, waste plastics (large) 6a, wood waste (large) 6b, etc. are first sorted by hand picking 6d by picking personnel 6d, and iron scraps (small) 7a are sorted by permanent magnet 7b in magnetic separator 7. Selected.

  Finally, among the waste falling 15b from the picking conveyor 6c by the wind sorting 8, the waste plastics (small) 8a and the wood chips (small) 8b are blown away by the wind machine 8d, and the remaining concrete 8c is conveyed by the conveyor. Take 8g and move 15c.

  A net 8f is provided in the place where the waste blown off by the wind turbine 8d is stored so that it does not go outside. However, among the wastes blown by the wind 8e, the lighter one falls to the front and is heavy. Since things fall behind, some sort of selection is possible.

  Since the trommel 5e is provided with a tire 5j, it can be easily moved 11 to an illegal dumping site and installed, and can be removed immediately from the installation site after the sorting operation is completed.

  Since transportation of equipment such as the picking conveyor 6c other than the trommel 5e and a machine such as the power shovel 4c does not require much labor, making the largest trommel 5e mobile can greatly reduce labor and cost.

FIG. 4 is a front view of the mesh bucket in the primary sorting step of the method for sorting mixed waste such as earth and sand according to the present invention. FIG. 3 shows a heel portion of a power shovel 4c used in the primary sorting step 4 of FIG.

  The power shovel 4c is similar to the general power shovel 5b with respect to the driver's seat 10, the caterpillar 10a, the arm 10b, and the claw 10d, and only the bucket 10c is replaced with a special net-like one.

  The net-like bucket 10c of the power shovel 4c is formed by assembling a horizontal frame 10f and a vertical frame 10g in a lattice pattern with a bottom portion of the bag opened. By providing the gap 10e in the heel portion, it is possible to sort out only those having a large size that cannot pass through the gap 10e.

  The claw 10d of the net-like bucket 10c scrapes the ground, and the small one of the mixed waste 3a that has entered the net-like bucket 10c falls out of the gap 10e, and only the one larger than the gap 10e remains inside.

  In the trommel 5e, the mixed waste 3a is agitated 14a inside, so if too much is mixed, there is a possibility of damaging the inside of the trommel 5e. deep.

  Small waste is difficult to distinguish from the mixed waste 3a, so it is necessary to hang it on the trommel 5e. Can do.

FIG. 5 is a perspective view of the trommel in the sorter process of the method for sorting mixed waste such as earth and sand according to the present invention. A mobile trommel 5e used to sort 14c the diverted soil 5a in the sorter process 5 of FIG. 1 is shown.

  An input port 5d is opened on the upper surface of the front part of the trommel 5e, and the mixed waste 3a is input 5h using a power shovel 5b or the like. The mixed waste 3a input 5h is subjected to sorting 14c inside the trommel 5e.

  Small wastes are sorted by the sorting 14c of the trommel 5e and discharged from the discharge port 5f. In order to carry the discharged waste to the discharge place, a side conveyor 5g is installed at the discharge port 5f during work.

  Tires 5j provided on the left and right side surfaces below the rear part of the trommel 5e are for moving the trommel 5e. During work, a support 5k for supporting the front portion of the trommel 5e is provided.

  The movement 11 of the trommel 5e is performed by connecting the connecting portion 5l to the towing vehicle 11a or the like and pulling the trommel 5e by the towing vehicle 11a or the like. The support 5k is removed or kept away at the time of connection. Since the tow vehicle 11a has a driver's seat 11b and tires 11c, the trommel 5e can be carried to the destination.

  The trommel 5e does not have the driver's seat or power to move, so it cannot be moved alone. However, if the towing vehicle 11a is used, the facility can be directly transported to the site of illegal dumping. It is more efficient in terms of time and cost than providing it.

  In addition, after the movement 11, the installation of the trommel 5e is completed by separating the towing vehicle 11a and the like, and the position can be adjusted because of the presence of the tire 5j. .

  FIG. 6 is a side view of a trommel drum of the mixed waste sorting method according to the present invention. The drum 12 is inside the trommel 5e and is a part that actually performs the sorting 14c of the mixed waste 3a.

The drums 12 are a set of six, and each drum 12 has a cylindrical shape in which two hollow circles are connected by several frames 12a, and between the side frames 12a and 12a. A folding net 12b is attached 13c to the gap 12f.

  The folding net 12b is formed by welding L-shaped clasps 12d to the upper and lower ends of the net 12c, bent along the outer periphery of the drum 12, and screwed to the clasp 12d in the frame 12a to perform attachment 13c. . The welding position 12e of the folding net 12b will be described in the second embodiment.

  The net 12c is made of a metal such as iron and needs to be strong enough not to be easily damaged even when the mixed waste 3a hits it. Also, since the welded part is weak, it must be securely attached so that it does not peel off.

  The mixed waste 3a that has entered the drum 12 is stirred 14a and separated 14b by rotating the drum 12 13a. A small size such as the diverted soil 5a is passed through the mesh 12c and selected 14c.

  Since it is necessary to continue the stirring 14a to some extent until the mixed waste 3a is separated 14b, a plurality of drums 12 are connected. By changing the size of the meshes 12c of the six drums 12 from small to large, it is possible to perform the selection 14c step by step.

Figure 7 is a front view of the trommel drum sorting methods gravel or the like mixed waste is present invention. The drum 12 of the trommel 5e has a circular shape when viewed from the front. Several frames 12a extend from the front side to the back side, and a folding net 12b is attached 13c to a gap 12f between the frames 12a and 12a.

  When the drum 12 rotates 13a, the mixed waste 3a therein is agitated 14a, and among the separated waste 14b, a small one such as the diverted soil 5a falls from the folding net 12b and is sorted 14c. The larger one moves to the rear drum 12 and is discharged 14d.

  Two rollers 13 are in close contact with the lower side of the drum 12, and the drum 12 is rotated 13a by rotating the roller 13 with power 13b. When the rollers 13 are rotated 13b to the right, the drum 12 is rotated 13a to the left.

  The roller 13 is shaped like a circular wheel and rotates 13b when power is applied to the shaft 13e. In order to transmit the rotation 13b to the drum 12, it is necessary to be provided with anti-slip or the like. The material of the roller 13 will be described in Example 3.

  Friction occurs on the contact surface between the drum 12 and the roller 13 and slips when worn, and the rotation 13b is not normally transmitted. Therefore, the roller 13 is preferably resistant to friction and heat.

  FIG. 8 is a perspective view of a trommel drum of the mixed waste sorting method according to the present invention. This shows a state in which the mixed waste 3a contained in the drum 12 inside the trommel 5e is sorted 14c.

  The mixed waste 3a thrown into the trommel 5e is carried to the entrance of the drum 12 by the internal conveyor 5i and put into it. Since the drum 12 is in a state where the inlet side is lifted and the back side is lowered, the mixed waste 3a falls to the back side.

The drum 12 has a shape in which a hollow cylinder with an upper bottom surface and a lower bottom surface is laid sideways, and rotates 13a in a circumferential direction. On the side surface of the cylinder, a folding net 12b is attached 13c to the gap 12f between the frame 12a and the frame 12a, but is omitted in FIG.

  The mixed waste 3a thrown into the drum 12 is agitated 14a while rotating in a spiral as the drum 12 rotates 13a. The mixed waste 3a is gradually separated 14b and becomes finer while being stirred 14a.

Small waste about 80 millimeters 10 millimeters of the separated 14b have been mixed waste 3a (small) 14e is sorted 14c by slipping through the mesh of a net 12c of the attachment 13c et a folded network 12b in the gap 12f, Landfilled as diverted soil 5a.

  The large waste (large) 14f that has not been sorted 14c passes through the drum 12 and is discharged 14d. Since the waste (small) 14e attached to the surroundings by the stirring 14a is separated 14b, the waste (large) 14f has a size that is difficult to separate 14b.

FIG. 9 is a side view showing discharge of diverted soil in the method for sorting mixed waste such as earth and sand according to the present invention. The diverted soil 5a sorted 14c in the sorter process 5 in FIG. 1 is discharged 15 to a landfill site or a temporary storage location.

  What is selected 14c by the trommel 5e is soil or the like adhering to the mixed waste 3a. Since the soil separated from the mixed waste 3a by the trommel 5e is of good quality, there is no problem even if it is landfilled.

  The diverted soil 5a coming out from the outlet 5f of the trommel 5e is transported by the side conveyor 5g, discharged 15 and stored in one place. If it is a landfill location, it will be landfilled as it is, but if it is a different location, the diverted soil 5a will be moved later.

FIG. 10 is a perspective view showing a manual sorting step and a magnetic separator step of the method for sorting mixed waste such as earth and sand according to the present invention. The state which sorts various kinds of waste in the hand sorting process 6 and magnetic separator process 7 of Drawing 1 is shown.

  The mixed waste 3a discharged 14d without being sorted 14c by the trommel 5e is dropped onto the picking conveyor 6c. Sorting is performed on the mixed waste 3a moving 15a on the picking conveyor 6c.

On both sides of the picking conveyor 6c few of picking for members 6d to wait. When the mixed waste 3a flows, the waste plastics (large) 6a to be sorted or the wood chips (large) 6b are judged and removed by eyes or hands.

  Since the picking member 6d can determine, picking conveyors 6c are used as they are because they are sorted by the next wind sorting 8 such as waste plastics (small) 8a or wood chips (small) 8b. Shed.

  The picking conveyor 6c has a portion where permanent magnets 7b are installed, and sorting can be performed by attracting iron scraps (small) 7a. If the iron scraps (small) 7a accumulate, there is a possibility that the flow of the picking conveyor 6c may be obstructed, so it is necessary to remove them frequently.

When removing a temporary sorting scrap such in Step 4 (large) 4b, when they've also removed to Tetsukuzurui (small) 7a is also possible to omit the magnetic separator step 7, remove the permanent magnet 7b It is.

  Each removed waste is collected in a temporary storage place such as the stock yard 9 for each type of waste or the same disposal method, and is disposed of after the sorting process is completed.

FIG. 11 is a perspective view showing a wind power sorting step of the method for sorting mixed waste such as earth and sand according to the present invention. The state which sorts various wastes using the power of wind 8e in wind-power sorting process 8 of Drawing 1 is shown.

  The mixed waste 3a that has flowed on the picking conveyor 6c without being sorted by the manual sorting 6 or the magnetic separator 7 falls 15b from the picking conveyor 6c when it reaches the end. Although there is a conveyor 8g on the lower side, a wind 8e is sent between the picking conveyor 6c and the conveyor 8g by a wind turbine 8d.

  Light waste such as waste plastic (small) 8a or wood chips (small) 8b is blown by the wind 8e and falls to a discharge place surrounded by the net 8f. Since the waste plastics (small) 8a and the wood waste (small) 8b are made of different materials, the distance to be blown changes, and the waste plastics (small) 8a or the wood waste (small) 8b is roughly divided.

  Heavy waste such as concrete 8c that is hardly affected by the wind 8e falls 15b onto the conveyor 8g as it is. The concrete 8c on the conveyor 8g moves 15c to the discharge destination.

FIG. 12 is a front view showing the discharge of concrete in the method for sorting mixed waste such as earth and sand according to the present invention. The discharge of concrete 8c which was not sorted by the wind 8e in the wind sorting process 8 is shown.

  Of the waste that has moved 15a on the picking conveyor 6c, light waste plastics (small) 8a or wood chips (small) 8b are blown by the wind 8e of the wind turbine 8d, and only the heavy concrete 8c etc. are conveyed by the conveyor 8g. Move 15c on the top.

  Since the direction of the movement 15c is raised upward, the conveyor 8g is provided with measures such as anti-slip to prevent dropping. When the concrete 8c or the like moves 15c to the end of the conveyor 8g, it falls 15d as it is and is collected at the discharge location.

  Since the collected concretes 8c and the like do not contain harmful substances such as concrete and rubble, they can be recycled into aggregates and the like, and can be reused by being handed over to contractors.

  Below, based on an accompanying drawing, the sorting method of mixed wastes, such as earth and sand which is the present invention, is explained in detail. FIG. 6 is a side view of a trommel drum of the method for sorting mixed waste such as earth and sand according to the present invention, and FIG. 13 is a plan view showing a conventional folding net and a roller.

  In FIG. 13, the welding position 16c of the net 16a of the conventional folding net 16 and the clasp 16b is linear, and is easy to peel off due to vibration during the rotation 13a of the trommel 5e. Even if the mixed waste 3a hits, the net 16 itself is rarely pierced, and the welding position 16c is often applied and peeled off.

  As shown in the folded net 12b in FIG. 6, the welded positions 12e of the net 12c and the clasp 12d are alternately staggered so that the durability is enhanced and the trummel 5e is peeled off due to vibration during the rotation 13a. Can now be suppressed.

  In the case of straight welding, if one part peels off, it will peel off only by applying a force in one direction, but if it is a staggered type of welding, it will take another direction to peel the next even if one part peels off. Because you have to put power on, you need stronger power.

  By making the welding difficult to peel off, it is considered that the possibility that the trommel 5e breaks down is reduced, and the labor and cost for repair are also reduced. In addition, work delays are less likely to occur due to repairs due to failures.

  Below, based on an accompanying drawing, the sorting method of mixed wastes, such as earth and sand which is the present invention, is explained in detail. FIG. 7 is a front view of a trommel drum of the mixed waste sorting method according to the present invention, and FIG. 13 is a plan view showing a conventional folding net and rollers.

  In FIG. 13, the conventional roller 17 is a ring with urethane 17a on the outside of the iron ring 17b. The urethane 17a has an advantage such as wear resistance, but the strength is weak and the urethane 17a may be cracked.

  By using only the iron wheel 13d as in the roller 13 of FIG. 7, durability is improved and the roller 13 is hardly broken, and the thickness of the roller 13 itself can be reduced.

  By increasing the strength of the roller 13, it is considered that the possibility that the trommel 5e breaks down is reduced, and the labor and cost for repair are also reduced. In addition, work delays are less likely to occur due to repairs due to failures.

It is a figure which shows the flow of the sorting method of mixed wastes, such as earth and sand which is this invention. It is a top view which shows the whole line after the installation preparation process and chemical | medical agent mixing process of the sorting method of mixed wastes, such as earth and sand which is this invention. It is a side view of the whole line of the sorting method of mixed wastes, such as earth and sand which is the present invention. It is a front view of the mesh bucket in the primary sorting process of the sorting method of mixed wastes, such as earth and sand which is the present invention. It is a perspective view of the trommel in the sorter process of the sorting method of mixed wastes, such as earth and sand which is the present invention. It is a side view of the trommel drum of the sorting method for mixed waste such as earth and sand according to the present invention. It is a front view of the drum of Trommel of the sorting method of mixed wastes, such as earth and sand which is the present invention. It is a perspective view of the drum of Trommel of the sorting method of mixed wastes, such as earth and sand which is the present invention. It is a side view which shows discharge of the diverted soil of the sorting method of mixed wastes, such as earth and sand which is this invention. It is a perspective view which shows the manual selection process and magnetic separator process of the sorting method of mixed wastes, such as earth and sand which are this invention. It is a perspective view which shows the wind force selection process of the sorting method of mixed wastes, such as earth and sand which is this invention. It is a front view which shows discharge | emission of concrete of the sorting method of mixed wastes, such as earth and sand which is this invention. It is a top view which shows the conventional folding net | network and a roller.

Explanation of symbols

1 Flow of sorting method for mixed waste such as earth and sand 2 Installation preparation process 3 Drug mixing process 3a Mixed waste 3b Dump truck 4 Primary sorting process 4a Waste (Large)
4b Iron scraps (large)
4c excavator 5 sorter process 5a diverted soil 5b excavator 5c scaffolding 5d loading port 5e trommel 5f discharge port 5g side conveyor 5h loading 5i internal conveyor 5j tire 5k support 5l connecting part 6 hand sorting process 6a waste plastics (large)
6b Wood chips (large)
6c Picking conveyor 6d Picking personnel 7 Magnetic separator process 7a Iron scraps (small)
7b Permanent magnet 8 Wind power sorting process 8a Waste plastics (small)
8b Wood waste (small)
8c Concrete 8d Wind machine 8e Wind 8f Net 8g Conveyor 9 Stockyard 10 Driver's seat 10a Caterpillar 10b Arm 10c Bucket 10d Claw 10e Clearance 10f Horizontal frame 10g Vertical frame 11 Moving 11a Towing vehicle 11b Driver frame 11c Tire 12c Tire 12c Tire 12c Tire 12c Tire Net 12c Net 12d Clasp 12e Welding position 12f Clearance 13 Roller 13a Rotation 13b Rotation 13c Mounting 13d Iron wheel 13e Shaft 14 Input 14a Stirring 14b Separation 14c Sorting 14d Discharge 14e Waste (Small)
14f Waste (Large)
15 Discharge 15a Move 15b Drop 15c Move 15d Drop 16 Folding net 16a Net 16b Clasp 16c Welding position 17 Roller 17a Urethane 17b Iron wheel 17c Shaft

Claims (1)

Installation preparation process where trommel, picking conveyors, permanent magnets, wind turbines, conveyors, etc. are installed on the actual waste sorting site such as illegal dumping site or final disposal site, and contamination after the installation preparation step Mix the chemicals that insolubilize toxic substances in the soil, stir and wait for a certain period of time, and after the chemical mixing step, leave the bottom part of the basket with large waste, Diverted soil using a mobile trommel that has a primary sorting step that is assembled in a grid and removed by a net-like bucket having a plurality of gaps in the cage, and a connecting portion that can be coupled to the towing vehicle after the primary sorting step. A sorting process that sorts the waste, a manual sorting process in which a picking member removes waste plastics and wood chips after the sorting process, and iron scraps with a permanent magnet after the manual sorting process. The trommel has a slot opening on the top of the front part, and the front of the trommel is open during work. A support for supporting the part is provided, and the folded net attached to the gap between the frame on the outer peripheral surface of the trommel is welded in a zigzag pattern in which the welding positions of the net and the clasp are alternately alternated, A method for sorting mixed waste such as earth and sand, wherein a roller wheel for turning the trommel is only an iron wheel.

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