CN213495592U - Municipal administration domestic mixed waste screening processing system - Google Patents
Municipal administration domestic mixed waste screening processing system Download PDFInfo
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- CN213495592U CN213495592U CN202020881067.1U CN202020881067U CN213495592U CN 213495592 U CN213495592 U CN 213495592U CN 202020881067 U CN202020881067 U CN 202020881067U CN 213495592 U CN213495592 U CN 213495592U
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Abstract
A municipal domestic mixed garbage screening treatment system is characterized by comprising a garbage crushing and separating device (1), a conveying and feeding device (2), a screening device (3), a high-pressure flushing device (5), a mud pit (6), a harmless treatment tank (7) and a plate-and-frame filter press (8); the garbage is primarily sorted by the crushing and separating device (1) and then is conveyed to the screening device (3) by the conveying and feeding device (2); screening plant (3) carry out the secondary screening to rubbish, select separately for mud, tiny particle piece, large granule piece rubbish, make things convenient for rubbish to classify according to the particle diameter and handle, and screening efficiency is high, and equipment is easy to be maintained. The system has a good separation effect on garbage, and the garbage treatment efficiency is obviously improved.
Description
Technical Field
The application relates to a municipal administration domestic mixed waste screening processing system.
Background
At present, the garbage disposal mode in China generally comprises three types: landfill, incineration, and composting. The most important mode of municipal waste treatment is landfill, which accounts for about 70% of the total treatment capacity. Most of the garbage landfill modes treat different types of garbage indiscriminately, occupy a large amount of land resources, and harmful substances generated by long-term stacking of the garbage easily have adverse effects on the surrounding natural environment. The garbage classification measures are not widely implemented, and the construction garbage and the domestic garbage of urban and rural municipal administration and the like are mixed and stacked after being transported to suburbs, and cannot be effectively treated for a long time, so that a large amount of harmful microorganisms, malodorous gases and the like are generated, and the environment is harmed. In order to effectively treat municipal domestic mixed garbage, various garbage treatment equipment is invented, but the existing garbage treatment equipment has the following problems: the solid particle dry garbage easily causes the blockage of screening equipment, and can not screen out the garbage according to the garbage particle size, and can carry out classification treatment according to the garbage particle size, and the like.
Disclosure of Invention
The utility model provides an aim at overcomes prior art's is not enough, provides a municipal administration domestic mixed waste screening processing system, carries out multistage screening to municipal administration domestic waste to remedy can not sieve out the not enough of rubbish according to the rubbish particle diameter in the current rubbish screening technology.
The technical scheme provided by the application is as follows:
the utility model provides a municipal administration domestic mixed waste screening processing system which characterized in that pulverizes separator 1, carries feed arrangement 2, screening plant 3, high pressure flushing device 5, mud pit 6, innocent treatment jar 7, plate and frame filter press 8 including rubbish.
The garbage is primarily sorted by the crushing and separating device 1 and then is conveyed to the screening device 3 by the conveying and feeding device 2; the screening device 3 is used for carrying out secondary screening on the garbage and sorting the garbage into slurry, small particle blocks and large particle block garbage; the high-pressure flushing device 5 cleans the screening device 3 to prevent the screening holes of the screen drum from being blocked; after the mud passes through a mud pool 6, the mud is subjected to innocent treatment by an innocent treatment tank 7 and is treated by a plate and frame filter press 8 to generate mud cakes.
The screening device 3 comprises an inner layer roller 31, an outer layer roller 32, a coarse material output port 33, a fine material output port 34 and a driving device 35; the inner layer roller 31 and the outer layer roller 32 are both in the shape of a circular truncated cone side surface, the central axis of the circular truncated cone is in the horizontal direction, one side close to the conveying and feeding device 2 is a circular truncated cone lower bottom surface, the upper bottom surface of the circular truncated cone is sealed, and the lower bottom surface is open; the central shaft of the upper bottom surface of the circular truncated cone extends and then is connected with a driving device 35, and the driving device 35 provides power for the rotation of the roller. The inner layer roller 31 and the outer layer roller 32 are both of a mesh steel structure, and the outer layer roller 32 is sleeved outside the inner layer roller 31 to form a double-layer screen structure; the inner layer cylinder 31 has larger mesh openings and the outer layer cylinder 32 has smaller mesh openings. The coarse material output port 33 is arranged at the lower bottom surface of the right circular table of the inner layer roller 31; the fine material output port 34 is arranged at the lower bottom surface of the right circular truncated cone of the outer layer roller 32.
The inner layer roller 31 and the outer layer roller 32 are in a slope shape, garbage larger than the diameter of the grid holes of the inner layer roller 31 is limited in the inner layer roller 31 and then is conveyed to the coarse material output port 33 through the slope of the inner layer roller 31. The garbage smaller than the diameter of the mesh holes of the inner roller 31 enters the outer roller 32 through the holes of the inner roller 31. The garbage larger than the diameter of the mesh holes of the outer layer roller 32 is limited between the outer layer roller 32 and the inner layer roller 31 and is conveyed to the fine material output port 34 through the slope of the outer layer roller 32, and the fine particle garbage smaller than the diameter of the mesh holes of the outer layer roller 32 flows to the mud pit 6.
Compared with the prior art, the beneficial effect of this application lies in:
the mixture of the building garbage, the household garbage and the sludge can be screened into large stones, small stones and slurry, the screening effect is good, and the screened waste can be effectively utilized; the utility model discloses can be with the effective fruit separation of rubbish, screening efficiency is high, and equipment is easily maintained.
Drawings
FIG. 1 is a schematic view of a municipal solid waste screening system;
fig. 2 is a left view radial screenshot of fig. 1 at the screening device 3;
digital tag annotation:
1 garbage crushing and separating device, 11 crushing device, 12 overturning screen device, 111 roller, 112 hopper, 121 overturning screen, 122 roller, 2 conveying and feeding device, 21 belt pulley, 22 belt, 23 fender, 3 screening device, 31 inner layer roller, 32 outer layer roller, 33 coarse material output port, 34 fine material output port, 35 driving device, 351 motor, 352 reducer, 353 coupling, 4 telescopic carding device, 41 telescopic cylinder, 42 carding brush, 5 high-pressure flushing device, 51 high-pressure flushing pump set, 52 high-pressure flushing pipeline, 53 nozzle, 521 water pipeline, 522 middle flushing pipeline, 523 upper flushing pipeline, 6 mud pit, 7 innocent treatment tank and 8 plate and frame filter press.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and examples.
Example 1:
as shown in figure 1, the municipal domestic mixed garbage screening treatment system comprises a garbage crushing and separating device 1, a conveying and feeding device 2, a screening device 3, a high-pressure flushing device 5, a supporting device 6, a mud pit 6, a harmless treatment tank 7 and a plate-and-frame filter press 8, wherein in order to increase the cleaning capacity of the system, a telescopic carding device 4 is additionally arranged as an embodiment system, and all devices in the embodiment system are arranged in a production line.
The garbage crushing and separating device 1 comprises a crushing device 11 and an overturning screen device 12; the crushing device 11 comprises a hopper 112, rollers 111.
The overturning screen device 12 comprises an overturning screen 121, an overturning motor (not shown in the figure) and a spring 122; the spring 122 is arranged between the crushing device 11 and the overturning screen 121 and is positioned on one side of the overturning screen device 12, so that the overturning screen 121 is inclined, when garbage is thrown in, the garbage is firstly primarily screened by the overturning screen 121 due to vibration of the spring 122, large garbage is blocked on the screen, and small garbage enters the crushing device 11; the turning screen 121 is driven by the turning motor to complete turning action, and large garbage on the screen 121 is poured into a coarse material accumulation position beside the garbage crushing and separating device 1.
The grinding device 11 is provided with a plurality of rollers 111 which are arranged in parallel, the rollers 111 are provided with a tooth-shaped structure, the teeth of the adjacent rollers 111 are meshed with each other, and the rollers 111 rotate in the same direction during working; the small garbage primarily screened by the overturning screen 121 is further crushed by means of the mutual meshing action of the rollers 111, and the crushed garbage enters the conveying and feeding device 2.
The conveying and feeding device 2 is a multi-stage conveying device, and each conveying device comprises a belt pulley 21, a belt 22 and a fender 23; the belt (22) is attached to the belt pulley (21), and the belt pulley (21) rotates to drive the belt (22) to move; the front-stage conveying device is higher than the rear-stage conveying device, and the belts 22 at the joints of the front-stage conveying device and the rear-stage conveying device are overlapped in a certain length, so that the stability of conveying the garbage is ensured; the conveying and feeding device is used for conveying the garbage separated by the garbage crushing and separating device and conveying the garbage to the inside of the roller of the screening device; the belt pulley 21 provides power for the rotation of the belt; as shown in figure 2, the fenders 23 are arranged on two sides of the belt to prevent garbage on the belt from shaking and falling off during transportation.
The screening device 3 comprises a screening device which comprises an inner layer roller 31, an outer layer roller 32, a coarse material output port 33, a fine material output port 34 and a driving device 35; the driving device 35 includes a motor 351, a speed reducer 352, and a coupling 353; the driving device 35 is connected with the roller rotating shaft through a coupler 353 to provide power for the rotation of the roller.
From the aspect of shape, the inner layer roller 31 and the outer layer roller 32 are both in the shape of a circular truncated cone side surface, the central axis of the circular truncated cone is in the horizontal direction, one side close to the conveying and feeding device 2 is the lower bottom surface (namely the surface with a large diameter) of the circular truncated cone, the upper bottom surface of the circular truncated cone is in a sealed shape, the lower bottom surface is in an open shape, the central axis of the upper bottom surface of the circular truncated cone is connected with the driving device 35 after extending, and the driving device 35; the diameter (the diameter of the upper bottom surface and the lower bottom surface) of the outer layer roller 32 is larger than that of the inner layer roller 31, the inner layer roller 31 and the outer layer roller 32 are both of net-shaped steel structures, and the outer layer roller 32 is sleeved outside the inner layer roller 31 to form a double-layer screen structure; the mesh holes of the inner layer roller 31 are larger, and the mesh holes of the outer layer roller 32 are smaller; the coarse material output port 33 is arranged at the bottom of the right side (the lower bottom surface of the circular truncated cone) of the inner layer roller 31; the fine material output port 34 is arranged at the bottom of the right side (the lower bottom surface of the circular truncated cone) of the outer layer roller 32.
The screening device 3 is provided with a fixing device for providing a support bracket for the screening device 3.
After the garbage conveyed by the conveying and feeding device 2 enters the screening device 3, the inner layer roller 31 and the outer layer roller 32 start to rotate; the inner layer roller 31 and the outer layer roller 32 are in a slope shape, the conveying and feeding device 2 dumps the garbage to the left side (the upper bottom surface of the circular truncated cone) close to the inner layer roller 31, the garbage larger than the diameter of the grid holes of the inner layer roller 31 is limited in the inner layer roller 31, and then the garbage is rolled to the coarse material output port 33 through the slope of the inner layer roller 31; garbage with the diameter smaller than the mesh hole diameter of the inner roller 31 enters the outer roller 32 through the pores of the inner roller 31, and similarly, garbage with the diameter larger than the mesh hole diameter of the outer roller 32 is limited between the outer roller 32 and the inner roller 31, the garbage rolls to the fine material output port 34 through the slope of the outer roller 32, and fine particle garbage with the diameter smaller than the mesh hole diameter of the outer roller 32 flows to the mud pit 6.
As an embodiment, the system may further include an electric part and a retractable combing device 4, the retractable combing device 4 may be designed with a retractable cylinder 41 and a combing brush 42, which may realize the retractable action of the combing brush 42; the retractable carding device 4 is parallel to the inner upper wall of the inner layer roller 31 in the screening device 3, and the extended carding brush 42 is contacted with the inner upper wall of the inner layer roller 31; when the screening device 3 works, the telescopic carding device 4 controls the telescopic cylinder 41 to stretch the carding brush 42 into the screening device and contact with the inner upper wall of the inner layer roller 31, the carding brush 42 cleans garbage (such as plastic bags, cloth strips and the like) on the meshes of the inner wall of the inner layer roller 31 in the rotation process of the inner layer roller 31, and when the screening device 3 stops rotating, the telescopic carding device 4 withdraws the carding brush 42 out of the screening device 3 and works again after cleaning.
The high-pressure flushing device 5 comprises a high-pressure flushing pump set 51, a high-pressure flushing pipeline 52 and a nozzle 53; the high-pressure flushing pipeline 52 is uniformly provided with nozzles 53, and high-pressure water is directionally sprayed through the nozzles 53; the high-pressure flushing pipeline 52 comprises a lower flushing pipeline 521, a middle flushing pipeline 522 and an upper flushing pipeline 523; the high-pressure flushing pump set 51 is connected with the upper water outlet of the mud pit 6 and an external water pipe; the water at the water outlet of the mud pool 6 is supernatant liquid after mud sedimentation, and the water in the external water pipe comes from a municipal pipe network; as shown in fig. 2, the lower water flushing pipe 521 is horizontally arranged in the inner drum 31, close to the lower inner wall of the inner drum 31, for washing the inner drum 31 downward; the middle flushing pipeline 522 is horizontally arranged in the inner layer roller 31 and above the conveying and feeding device 2 and is used for cleaning fine particles in the garbage on the conveying and feeding device 2 to disperse the garbage, so that the garbage is convenient for soluble substances such as soil to form a solution and is separated from the solid garbage; the upper flushing pipe 523 is parallel to the outer drum 32 of the screening device 3, is installed outside the outer drum 32, flushes high-pressure water from the outside of the screening device 3 to the inside of the screening device 3, flushes the garbage attached to the inner wall of the inner drum and the outer drum of the screening device 3, and prevents the screening drum from being blocked.
The supporting device comprises a bearing and a system supporting frame, and provides support for the whole system.
The mud pit 6 is funnel-shaped, is arranged below a roller of the screening device 3 and is formed by pouring cement, prevents heavy metal from permeating soil to pollute soil, and is used for containing mud solution flushed down by the screening device 3; after the slurry solution is precipitated, the supernatant enters a high-pressure flushing pump set 51 for recycling; a plunger pumping device is arranged at the discharge port of the mud pool 6 and pumps mud to the harmless treatment tank 7.
The innocent treatment tank 7 is special slurry treatment equipment; the upper end of the side wall is provided with a slurry inflow pipeline, the tank is internally provided with a helical blade, the blades rotate to uniformly mix the slurry during operation, harmful substances such as heavy metals in the slurry are removed by physical and chemical methods, the lower end of the side wall is provided with a slurry outflow pipeline, and the slurry after innocent treatment enters the plate-and-frame filter press 8.
The plate-and-frame filter press 8 is in the prior art, and the plate-and-frame filter press 8 dehydrates the slurry treated by the innocent treatment tank 7 to form a mud cake.
Further optimizing the technical scheme:
the inner layer roller 31 has a mesh opening single hole size of about 50mmX50mm, and the outer layer roller 32 has a mesh opening single hole size of about 20X20 mm;
example 2:
referring to fig. 1, a municipal solid waste screening method using the municipal solid waste screening system of embodiment 1 includes the following steps:
firstly, the garbage crushing and separating device 1 crushes soft bulk garbage and separates bulk hard stone, concrete and other wastes; conveying the primarily treated garbage to a feeding hole of a screening device 3 through a conveying and feeding device 2; the inner wall of the screening device 3 is cleaned by the telescopic carding device 4, so that the screening cylinder is prevented from being blocked; the outer wall of the screening device is washed by the high-pressure flushing device 5, so that the screening holes of the screening cylinder are prevented from being blocked, slurry in the garbage is diluted, and the garbage is diluted, so that the garbage slurry smoothly flows through the screening cylinder and is discharged downwards; separating the primary treated garbage through a screening device 3, wherein the secondary treatment of the garbage is mud, small particle block and large particle block garbage; the garbage mud is precipitated through a mud pit 6; carrying out innocent treatment on the slurry through an innocent treatment tank 7; the treated slurry is sent to a plate-and-frame filter press 8 to be compressed into a mud cake.
The garbage screening and processing method of the system comprises the following steps:
s1, receiving the original garbage;
s2, crushing large blocks of stone blocks with low hardness in the garbage into small blocks by using the garbage crushing device 1, and separating large hard stone blocks;
s3, pouring the primarily screened garbage on the conveying and feeding device 2, and conveying the garbage into the inner layer roller 31 of the screening device 3;
s4, the screening device 3 operates to sort the garbage into large, medium and small particle size particles and sundries such as cloth strips and plastic bags which are difficult to clean;
s5, conveying the fine particles to a mud pit 6 and mixing the fine particles into mud with a certain concentration;
s6, conveying the slurry to a harmless treatment tank 7 for harmless treatment;
the slurry treated by the S7 is concentrated and pressed into solid mud blocks by a plate-and-frame filter press 8 for sustainable reuse.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (2)
1. A municipal domestic mixed garbage screening treatment system is characterized by comprising a garbage crushing and separating device (1), a conveying and feeding device (2), a screening device (3), a high-pressure flushing device (5), a mud pit (6), a harmless treatment tank (7) and a plate-and-frame filter press (8);
after being primarily sorted by the garbage crushing and separating device (1), the garbage is conveyed to the screening device (3) through the conveying and feeding device (2); the screening device (3) is used for carrying out secondary screening on the garbage and sorting the garbage into slurry, small particle blocks and large particle block garbage; the high-pressure flushing device (5) cleans the screening device (3) to prevent the screening holes of the screen drum from being blocked; after the mud passes through a mud pit (6), the mud is subjected to innocent treatment by an innocent treatment tank (7) and is treated by a plate-and-frame filter press (8) to generate mud cakes.
2. The municipal solid waste screening system of claim 1, wherein:
the screening device (3) comprises an inner layer roller (31), an outer layer roller (32), a coarse material output port (33), a fine material output port (34) and a driving device (35); the inner layer roller (31) and the outer layer roller (32) are both in the shape of the side surface of a circular truncated cone, the central axis of the circular truncated cone is in the horizontal direction, one side close to the conveying and feeding device (2) is the lower bottom surface of the circular truncated cone, the upper bottom surface of the circular truncated cone is sealed, and the lower bottom surface of the circular truncated cone is open; the central shaft of the upper bottom surface of the circular truncated cone extends and then is connected with a driving device (35), and the driving device (35) provides power for the rotation of the roller; the inner layer roller (31) and the outer layer roller (32) are both of a net-shaped steel structure, and the outer layer roller (32) is sleeved outside the inner layer roller (31) to form a double-layer screen structure; the mesh holes of the inner layer roller (31) are larger, and the mesh holes of the outer layer roller (32) are smaller; the coarse material output port (33) is arranged at the lower bottom surface of the right circular table of the inner layer roller (31); the fine material output port (34) is arranged at the lower bottom surface of the right circular table of the outer layer roller (32);
the inner layer roller (31) and the outer layer roller (32) are in a slope shape, garbage with the diameter larger than the diameter of the grid holes of the inner layer roller (31) is limited in the inner layer roller (31), and then the garbage is conveyed to the coarse material output port (33) through the slope of the inner layer roller (31); garbage with the diameter smaller than the diameter of the mesh holes of the inner layer roller (31) enters the outer layer roller (32) through the holes of the inner layer roller (31); the garbage larger than the diameter of the mesh holes of the outer layer roller (32) is limited between the outer layer roller (32) and the inner layer roller (31) and is conveyed to a fine material outlet (34) through the slope of the outer layer roller (32), and the fine particle garbage smaller than the diameter of the mesh holes of the outer layer roller (32) flows to the mud pit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020881067.1U CN213495592U (en) | 2020-05-23 | 2020-05-23 | Municipal administration domestic mixed waste screening processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020881067.1U CN213495592U (en) | 2020-05-23 | 2020-05-23 | Municipal administration domestic mixed waste screening processing system |
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| Publication Number | Publication Date |
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| CN213495592U true CN213495592U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020881067.1U Active CN213495592U (en) | 2020-05-23 | 2020-05-23 | Municipal administration domestic mixed waste screening processing system |
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| CN (1) | CN213495592U (en) |
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- 2020-05-23 CN CN202020881067.1U patent/CN213495592U/en active Active
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