Solid waste recycling device

Abstract

The invention discloses a recycling device for solid waste. The recycling device comprises a crushing device; the magnetic separation and screening combined device comprises a shell, and a crushed particle inlet, a first outlet, a second outlet and a third outlet are formed in the shell; the partition plate is arranged in the shell, a first channel is formed between the partition plate and the shell, and the first channel communicates with the second outlet; the sieve plate is arranged at the top of the partition plate, and a first opening is formed in the sieve plate; the third outlet is communicated with the part below the sieve plate in the partition plate; a second channel is formed in the first material guide piece, and the second channel communicates with the first opening and the first outlet; the first electromagnets are arranged on the inner wall of the shell, and the height of the first electromagnets corresponds to that of the sieve plate and is higher than that of the second outlet; the bottom of the rotating shaft is rotationally connected with the sieve plate; one end of the first push plate is fixedly connected with the rotating shaft, and the other end of the first push plate extends to the outer edge of the sieve plate. The equipment purchase cost can be reduced, and the processing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction waste recycling, and more specifically, to a solid waste recycling device. Background Art

[0002] Most construction waste can be reused as renewable resources after being sorted, removed or crushed.

[0003] Reinforced concrete refers to a composite material that improves the mechanical properties of concrete by adding steel mesh, steel plate, etc. to the concrete to work together with it. After the demolition of reinforced concrete buildings, waste concrete, waste steel, waste steel bars and other waste metal materials can be directly reused or reprocessed for reuse.

[0004] Existing solid waste recycling devices, such as application number 202010800827.6, a renewable concrete construction solid waste separation device, which is equipped with a crusher, a magnetic separator and a screening separator. After the construction waste is crushed, the metal materials, solid particles and powders therein are screened and separated, but the magnetic separation and screening are carried out in the magnetic separator and the screening separator respectively. Therefore, it is necessary to purchase the magnetic separator and the screening separator separately, and the magnetic separation and screening are carried out separately during use, resulting in low processing efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a solid waste recycling device, in which magnetic separation and screening are carried out in the same device, thereby reducing the equipment purchase cost and the equipment footprint. At the same time, magnetic separation and screening are carried out simultaneously, which can improve the processing efficiency.

[0006] In order to achieve these purposes and other advantages of the present invention, a solid waste recycling device is provided, comprising: Crushing device; A combined magnetic separation and screening device comprising: A housing, the top of which is provided with a crushed particle inlet, the upper part is provided with a first outlet, the lower part is provided with a second outlet and a third outlet, the crushed particle inlet is connected to the outlet of the pulverizing device; The partition is cylindrical and vertically arranged in the shell, the bottom of the partition is fixedly connected to the bottom of the shell, the outer wall of the partition is separated from the inner wall of the shell by a certain distance, and a first channel is formed between the side wall of the partition and the side wall of the shell, and the first channel is connected to the second outlet; The sieve plate is circular and horizontally arranged on the top of the partition plate, and the center of the circle is located on the axis of the partition plate. The diameter of the sieve plate is equal to the diameter of the top of the partition plate. The sieve plate is provided with a first opening along its radial direction. The crushed particle inlet is opposite to the portion of the sieve plate where the first opening is not provided, and the portion of the sieve plate opposite to the crushed particle inlet is close to the first opening. The third outlet is connected to the portion of the partition plate located below the sieve plate. A first material guiding member having a second channel disposed therein, the second channel being communicated with the first opening and the first outlet respectively; A plurality of first electromagnets are arranged on the inner side wall of the shell at intervals along the circumferential direction of the shell, the height of each first electromagnet corresponds to the height of the sieve plate and is higher than the height of the second outlet, and each first electromagnet is spaced a certain distance from the sieve plate; A rotating shaft is coaxially arranged with the partition plate, the top of the rotating shaft is located outside the shell and can rotate under the driving of power, the bottom of the rotating shaft passes through the top of the shell and is rotatably connected with the screen plate, and the first opening and the part of the screen plate opposite to the crushed particle inlet are sequentially arranged along the rotation direction of the rotating shaft; The first push plate is arranged on the sieve plate along the radial direction of the sieve plate, and one end of the first push plate is fixedly connected to the rotating shaft, and the other end extends to the outer edge of the sieve plate. The bottom of the first push plate is close to or in contact with the top of the sieve plate.

[0007] Preferably, in the solid waste recycling device, the shell is in the shape of a hollow cylinder and is coaxially arranged with the partition.

[0008] Preferably, in the solid waste recycling device, the bottom of the second channel gradually tilts downward, and the end corresponding to the first opening is higher, and the end corresponding to the first outlet is lower, one end of the first opening passes through the outer edge of the sieve plate, and the other end is close to the rotating shaft.

[0009] Preferably, in the solid waste recycling device, the partition is provided with a plurality of through holes spaced apart along its circumferential direction, and the through holes communicate with the interior of the partition and the first channel; The magnetic separation and screening combined device also includes: The first material guide plate is hollow inside and has an inverted truncated cone shape with the top and bottom both open. The first material guide plate is located inside the partition plate and its height is lower than the height of the first material guide member. The top of the first material guide plate is fixed to the inner side wall of the partition plate and is seamlessly connected. The bottom of the rotating shaft passes through the first material guide plate downward, and the rotating shaft does not contact the bottom of the first material guide plate. The support plate is circular and is arranged inside the partition plate and below the first guide plate. The outer edge of the support plate is fixed to the inner side wall of the partition plate and seamlessly connected. The support plate is provided with a second opening in its radial direction. Each through hole is located between the first guide plate and the support plate, and the bottom of each through hole is flush with the top of the support plate. A second material guiding member having a third channel disposed therein, the third channel being communicated with the second opening and the third outlet respectively; A plurality of second electromagnets are arranged on the inner side wall of the shell at intervals along the circumferential direction of the shell, the second electromagnets are opposite to the through holes one by one, the height of each second electromagnet is higher than the height of the second outlet, and each second electromagnet is separated from the partition by a certain distance; The second material guide plate is located between the first material guide plate and the support plate, and is separated from the first material guide plate and the support plate by a certain distance. The second material guide plate is conical and is coaxially arranged with the partition plate, and the diameter of its bottom surface is smaller than the diameter of the support plate. The bottom of the rotating shaft passes through the second material guide plate downward, and is rotatably connected with the second material guide plate and the support plate. The second push plate is arranged on the support plate along the radial direction of the support plate, and one end of the second push plate is fixedly connected to the rotating shaft, and the other end extends to the outer edge of the support plate. The bottom of the second push plate is close to or in contact with the top of the support plate.

[0010] Preferably, in the solid waste recycling device, the bottom of the third channel gradually tilts downward, and the end corresponding to the second opening is higher, and the end corresponding to the third outlet is lower, one end of the second opening passes through the outer edge of the support plate, and the other end is close to the rotating shaft.

[0011] Preferably, in the solid waste recycling device, a circle of extension platform is protruding outward from the bottom of the second material guide plate, the extension platform is arranged in the horizontal direction, a circle of baffle is arranged at the outer edge of the top of the extension platform in the vertical direction, a third opening is arranged on the extension platform, the third opening is opposite to the part of the support plate where the second opening is not arranged, the part of the support plate opposite to the third opening is close to the second opening, and the second opening and the part of the support plate opposite to the third opening are arranged in sequence along the rotation direction of the rotating shaft; The magnetic separation and screening combined device also includes: At least one third push plate, the bottom of each third push plate is in contact with the outer wall of the second material guide plate and the top of the extension platform, one end of each third push plate is fixedly connected to the rotating shaft, and the other end of each third push plate is in contact with the baffle.

[0012] Preferably, in the solid waste recycling device, the magnetic separation and screening combined device further comprises: The third material guide plate is obliquely arranged in the first channel and is located below the second material guide member. The third material guide plate is fixed to the side walls of the partition and the side walls of the shell and are seamlessly connected. The bottom of the second outlet extends to the lower end of the third material guide plate.

[0013] Preferably, in the solid waste recycling device, the magnetic separation and screening combined device further comprises: At least one fourth push plate, the bottom of each fourth push plate is in contact with the inner wall of the first guide plate, one end of each fourth push plate is fixedly connected to the rotating shaft, and the other end extends to the inner wall close to the partition or in contact with the inner wall of the partition.

[0014] Preferably, in the solid waste recycling device, the third push plate and the fourth push plate are each provided with two pieces, and the vertical projection of the extension platform is located within the vertical projection of the support plate.

[0015] Preferably, in the solid waste recycling device, the crushed particle inlet is opposite to the edge of the sieve plate, and no sieve holes are provided on the portion of the sieve plate opposite to the crushed particle inlet.

[0016] The present invention has at least the following beneficial effects: The present invention allows the crushed material to fall onto the screen plate through the crushing particle entrance. During the rotation of the first push plate, the crushed material is pushed forward. During this process, larger particles of material are retained on the screen plate, wherein larger metal materials are attracted by the first electromagnet. After the first electromagnet releases the metal material, it is discharged through the second outlet. Non-metallic materials are pushed to the first opening by the first push plate and are led out through the first material guide. After passing through the screen plate, smaller particles of material fall below the screen plate and are finally discharged through the third outlet. The present invention combines magnetic separation and screening in a magnetic separation and screening combination device, thereby reducing the equipment purchase cost and equipment floor space. At the same time, magnetic separation and screening are carried out simultaneously, which can improve processing efficiency.

[0017] The present invention, by arranging a first material guide plate, a support plate, a second material guide member, a plurality of second electromagnets, a second material guide plate, an extension platform and a second push plate, can enable materials with smaller particles after passing through the screen plate to first fall onto the first material guide plate, then fall onto the second material guide plate, and fall onto the extension platform along the inclined surface of the second material guide plate. Since a third opening is arranged on the extension platform, some materials with smaller particles first pass through the third opening and then fall onto the support plate. Other materials on the extension platform are blocked on the extension platform by the baffle plate, and then move forward under the push of the third push plate. When pushed to the third opening, they pass through the third opening and then fall onto the support plate. The materials that fall onto the support plate move forward under the push of the second push plate. In this process, the metal material is sucked by the second electromagnet and finally discharged through the second outlet. Other materials are pushed to the second opening by the second push plate and discharged through the second material guide member. After separating the metal materials and non-metal materials in the large particles, the metal materials and non-metal materials in the smaller particles are further separated and finally discharged through the second outlet and the third outlet, so that materials of different sizes and properties can be recycled separately, which is conducive to the reuse of solid waste.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a solid waste recycling device according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a first electromagnet, a sieve plate, a first opening and a first push plate according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a second electromagnet, a through hole, a support plate, a second material guide plate, an extension platform, and a second push plate according to an embodiment of the present invention; Figure 4 1 is a schematic structural diagram of a second electromagnet, a through hole, a support plate and a second push plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0021] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figures 1 to 4 As shown, the present invention provides a solid waste recycling device, comprising: Crushing device 1; The magnetic separation and screening combined device 2 comprises: The housing 201 has a crushed particle inlet at the top, a first outlet 2011 at the upper side wall, and a second outlet 2012 and a third outlet 2013 at the lower side wall. The crushed particle inlet is connected to the outlet of the pulverizing device 1, and the crushed material passes through the outlet of the pulverizing device 1 and the crushed particle inlet in sequence and then falls onto the screen plate 203; The partition 202 is cylindrical and vertically arranged in the shell 201. The bottom of the partition 202 is fixedly connected to the bottom of the shell 201. The outer wall of the partition 202 is separated from the inner wall of the shell 201 by a certain distance, so that after the first electromagnet 205 releases the attracted metal material, the metal material has a falling space. A first channel is formed between the side wall of the partition 202 and the side wall of the shell 201. The first channel is connected to the second outlet 2012, so that after the first electromagnet 205 releases the attracted metal material, the metal material is discharged through the second outlet 2012. The sieve plate 203 is circular and horizontally arranged on the top of the partition 202, and the center of the circle is located on the axis of the partition 202. The diameter of the sieve plate 203 is equal to the diameter of the top of the partition 202. Figure 2 As shown, a first opening 2031 is provided on the sieve plate 203 along its radial direction, the crushed particle inlet is opposite to the portion of the sieve plate 203 where the first opening 2031 is not provided, and a portion 2032 of the sieve plate 203 opposite to the crushed particle inlet is close to the first opening 2031. Although the two are close, there is also a certain distance between them. The distance is to ensure that the crushed particles will not fall directly from the first opening 2031 after falling onto the sieve plate 203, but are as close to the first opening 2031 as possible; the third outlet 2013 is connected to the portion of the partition plate 202 located below the sieve plate 203; The first material guide 204 is provided with a second channel therein, which is respectively connected to the first opening 2031 and the first outlet 2011, so that larger non-metallic materials passing through the first opening 2031 can be discharged through the first material guide 204; the first material guide 204 does not need to be too large, so as not to affect the downward movement of smaller particles of materials.

[0023] A plurality of first electromagnets 205 are arranged on the inner side wall of the housing 201 at intervals along the circumferential direction of the housing 201. The height of each first electromagnet 205 corresponds to the height of the sieve plate 203 (for example, the bottom of the first electromagnet 205 is flush with the top of the sieve plate 203), so that the first electromagnet 205 can attract the metal material on the sieve plate 203. The height of each first electromagnet 205 is higher than the height of the second outlet 2012. Each first electromagnet 205 is separated from the sieve plate 203 by a certain distance, so that the metal material attracted by the first electromagnet 205 can fall down. In order to make the magnetic separation continue, when a part of the first electromagnets 205 releases the attracted metal material, another part of the first electromagnets 205 continue to attract the metal material. The first electromagnet 205 is a strong electromagnet.

[0024] The rotating shaft 206 is coaxially arranged with the partition plate 202. The top of the rotating shaft 206 is located outside the shell 201 and can rotate under the driving force. The bottom passes through the top of the shell 201 and is rotatably connected to the screen plate 203. Figure 2As shown, the first opening 2031 and the portion 2032 on the sieve plate 203 opposite to the crushed particle inlet are arranged in sequence along the rotation direction of the rotating shaft 206, so that after the crushed material falls onto the sieve plate 203 through the crushed particle inlet, the larger particles of material are retained on the sieve plate 203 and continue to move forward under the action of the first push plate 207. During this process, the metal materials in the larger particles of material are continuously attracted by each first electromagnet 205, so that the separation degree of the metal materials in the larger particles of material is higher; in order to show the azimuth relationship between the first opening 2031 and the crushed particle inlet, Figure 2 The portion 2032 of the screen plate 203 opposite to the crushed particle inlet is shown in FIG.

[0025] The first push plate 207 is arranged on the sieve plate 203 along the radial direction of the sieve plate 203, and one end of the first push plate 207 is fixedly connected to the rotating shaft 206, and the other end extends to the outer edge of the sieve plate 203. The bottom of the first push plate 207 is close to or in contact with the top of the sieve plate 203.

[0026] The solid waste recycling device provided by the present solution, when in use, the crushed material falls onto the screen plate 203 through the crushed particle inlet, and the first push plate 207 pushes the crushed material forward during rotation. In this process, the larger particles of material are retained on the screen plate 203, wherein the larger metal material is attracted by the first electromagnet 205, and then after the first electromagnet 205 releases the metal material, it is discharged through the second outlet 2012, and the non-metallic material is pushed to the first opening 2031 by the first push plate 207, and is discharged through the first material guide 204, and the smaller particles of material pass through the screen plate 203, fall below the screen plate 203, and finally discharged through the third outlet 2013. The present invention combines magnetic separation and screening in the magnetic separation and screening combination device 2, thereby reducing the equipment purchase cost and equipment floor space, and simultaneously performing magnetic separation and screening, thereby improving processing efficiency.

[0027] In another embodiment, in the solid waste recycling device, the shell 201 is in the shape of a hollow cylinder and is coaxially arranged with the partition 202 .

[0028] In another embodiment, in the solid waste recycling device, the bottom of the second channel gradually tilts downward, and the end corresponding to the first opening 2031 is higher, and the end corresponding to the first outlet 2011 is lower, which is conducive to the discharge of larger non-metallic materials. One end of the first opening 2031 passes through the outer edge of the sieve plate 203, and the other end is close to the rotating shaft 206.

[0029] In another embodiment, in the solid waste recycling device, Figure 1 , Figure 3 and Figure 4As shown, the partition plate 202 is provided with a plurality of through holes 2021 at intervals along its circumferential direction, and the through holes 2021 communicate with the interior of the partition plate 202 and the first channel. By providing the through holes 2021, smaller particles of metal material can pass through the through holes 2021 and be attracted by the second electromagnet 211; The magnetic separation and screening combined device 2 also includes: The first guide plate 208 is hollow inside and has an inverted truncated cone shape with both the top and the bottom open. The first guide plate 208 is located inside the partition 202 and its height is lower than that of the first guide member 204. The top of the first guide plate 208 is fixed to the inner side wall of the partition 202 and is seamlessly connected. The bottom of the rotating shaft 206 passes through the first guide plate 208 downward, and the rotating shaft 206 does not contact the bottom of the first guide plate 208, so that the smaller particles collected by the first guide plate 208 can pass through the bottom of the first guide plate 208 and fall onto the second guide plate 212. The support plate 209 is circular and is disposed inside the partition 202 and below the first guide plate 208. The outer edge of the support plate 209 is fixed to the inner side wall of the partition 202 and is seamlessly connected. Figure 3 and Figure 4 As shown, the support plate 209 is provided with a second opening 2091 along its radial direction, and each through hole 2021 is located between the first guide plate 208 and the support plate 209, and its bottom is flush with the top of the support plate 209, so that the metal material in the smaller particle material can pass through the through hole 2021 and be sucked by the second electromagnet 211; The second material guide 210 is provided with a third channel therein, and the third channel is communicated with the second opening 2091 and the third outlet 2013 respectively, so that the smaller non-metallic material passing through the second opening 2091 can be discharged through the second material guide 210; A plurality of second electromagnets 211 are arranged on the inner side wall of the housing 201 at intervals along the circumferential direction of the housing 201. The second electromagnets 211 are opposite to the through holes 2021 one by one. The height of each second electromagnet 211 is higher than the height of the second outlet 2012. Each second electromagnet 211 is separated from the partition 202 by a certain distance, so that the second electromagnet 211 can attract the metal material and make the metal material fall. In order to make the magnetic separation continue, when a part of the second electromagnets 211 releases the attracted metal material, another part of the second electromagnets 211 continues to attract the metal material. The second electromagnet 211 is a strong electromagnet.

[0030] The second guide plate 212 is located between the first guide plate 208 and the support plate 209 and is spaced a certain distance from the first guide plate 208 and the support plate 209 so that smaller particles can fall down. The second guide plate 212 is conical and is coaxially arranged with the partition plate 202. The diameter of its bottom surface is smaller than the diameter of the support plate 209 so that the smaller particles can fall to the outer edge of the support plate 209 after falling along the second guide plate 212 instead of falling directly into the first channel. The bottom of the rotating shaft 206 passes through the second guide plate 212 downward and is rotatably connected with the second guide plate 212 and the support plate 209. The second push plate 213 is arranged on the support plate 209 along the radial direction of the support plate 209, and one end of the second push plate 213 is fixedly connected to the rotating shaft 206, and the other end extends to the outer edge of the support plate 209, and the bottom of the second push plate 213 is close to or in contact with the top of the support plate 209.

[0031] By arranging the first material guide plate 208, the support plate 209, the second material guide member 210, the plurality of second electromagnets 211, the second material guide plate 212 and the second push plate 213, the smaller particles of the material after passing through the screen plate 203 can first fall onto the first material guide plate 208, then fall onto the second material guide plate 212, and fall along the inclined surface of the second material guide plate 212 to the outer edge of the support plate 209, and then the material that falls onto the support plate 209 moves forward under the push of the second push plate 213. In this process, the metal material is sucked by the second electromagnet 211, and after the second electromagnet 211 releases the metal material, it is discharged through the second outlet 2012, and other materials are pushed to the second opening 2091 by the second push plate 213 and discharged through the second material guide member 210. After separating the metal materials and non-metal materials in the large particles, the metal materials and non-metal materials in the smaller particles are further separated and finally discharged through the second outlet 2012 and the third outlet 2013, so that materials of different sizes and different properties can be recycled separately, which is conducive to the reuse of solid waste.

[0032] In another embodiment, in the solid waste recycling device, the bottom of the third channel gradually tilts downward, and the end corresponding to the second opening 2091 is higher, and the end corresponding to the third outlet 2013 is lower, which is conducive to the discharge of smaller non-metallic materials. One end of the second opening 2091 passes through the outer edge of the support plate 209, and the other end is close to the rotating shaft 206.

[0033] In another embodiment, in the solid waste recycling device, the bottom of the second guide plate 212 is provided with a circle of extension platform 2121 protruding outward, the extension platform 2121 is arranged in the horizontal direction, and a circle of baffles 2122 are arranged at the outer edge of the top of the extension platform 2121 in the vertical direction, and the baffles 2122 can make all the smaller particles of materials falling through the second guide plate 212 fall onto the extension platform 2121, and the extension platform 2121 is provided with a third opening 21211, and the third opening 21211 is not provided with the second opening 2091 on the support plate 209. The part of the support plate 209 opposite to the third opening 21211 is close to the second opening 2091, and the second opening 2091 and the part of the support plate 209 opposite to the third opening 21211 are sequentially arranged along the rotation direction of the rotating shaft 206, so that the smaller particles of material pass through the third opening 21211, fall onto the support plate 209, and then continue to move forward under the action of the second push plate 213. In this process, the metal material in the smaller particles of material is continuously attracted by each second electromagnet 211, so that the separation degree of the metal material in the smaller particles of material is higher; The magnetic separation and screening combined device 2 also includes: At least one third push plate 214 is provided, and the bottom of each third push plate 214 is in contact with the outer wall of the second guide plate 212 and the top of the extension platform 2121, and one end of each third push plate 214 is fixedly connected to the rotating shaft 206, and the other end of each third push plate 214 is in contact with the baffle 2122. By providing the third push plate 214, it is possible to prevent smaller particles of material from adhering to the second guide plate 212, and also to push the material on the extension platform 2121 forward.

[0034] By arranging the first guide plate 208, the support plate 209, the second guide member 210, the plurality of second electromagnets 211, the second guide plate 212, the extension platform 2121 and the second push plate 213, the smaller particles of the material after passing through the sieve plate 203 can first fall onto the first guide plate 208, then fall onto the second guide plate 212, and then fall onto the extension platform 2121 along the inclined surface of the second guide plate 212. Since the extension platform 2121 is provided with a third opening 21211, some of the smaller particles of the material first pass through the third opening 21211 and then fall onto the support plate 209. The other particles on the extension platform 2121 are pushed away by the third opening 21211. The material is blocked on the extension platform 2121 by the baffle 2122, and then pushed forward by the third push plate 214. When pushed to the third opening 21211, the material passes through the third opening 21211 and falls on the support plate 209. The material falling on the support plate 209 moves forward under the push of the second push plate 213. During this process, the metal material is attracted by the second electromagnet 211. After the second electromagnet 211 releases the metal material, it is finally discharged through the second outlet 2012. Other materials are pushed to the second opening 2091 by the second push plate 213 and discharged through the second material guide 210. After the metal material and non-metal material in the large particle material are separated, the metal material and non-metal material in the smaller particle are further separated, and finally discharged through the second outlet 2012 and the third outlet 2013, so that materials of different sizes and properties can be recycled separately, which is conducive to the reuse of solid waste.

[0035] In another embodiment, in the solid waste recycling device, the magnetic separation and screening combined device 2 further comprises: The third guide plate 215 is obliquely arranged in the first channel and is located below the second guide member 210. The third guide plate 215 is fixed to the side walls of the partition 202 and the side walls of the shell 201 and is seamlessly connected. The bottom of the second outlet 2012 extends to the lower end of the third guide plate 215. By setting the third guide plate 215, both larger particles of metal materials and smaller particles of metal materials can be guided to the second outlet 2012 through the third guide plate 215 and then discharged through the second outlet 2012.

[0036] In another embodiment, in the solid waste recycling device, the magnetic separation and screening combined device 2 further comprises: At least one fourth push plate 216 is provided, and the bottom of each fourth push plate 216 is in contact with the inner wall of the first guide plate 208, and one end thereof is fixedly connected to the rotating shaft 206, and the other end thereof extends to the inner wall close to the partition 202 or is in contact with the inner wall of the partition 202. By providing the fourth push plate 216, smaller particles of material can be prevented from adhering to the first guide plate 208.

[0037] In another embodiment, in the solid waste recycling device, the third push plate 214 and the fourth push plate 216 are both provided in pairs, and the vertical projection of the extension platform 2121 is located within the vertical projection of the support plate 209 .

[0038] In another embodiment, in the solid waste recycling device, the crushed particle inlet is opposite to the edge of the sieve plate 203, and the portion 2032 of the sieve plate 203 opposite to the crushed particle inlet is not provided with sieve holes.

[0039] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A solid waste recycling device, characterized in that: include: Crushing device; A combined magnetic separation and screening device comprising: A housing, the top of which is provided with a crushed particle inlet, the upper part is provided with a first outlet, the lower part is provided with a second outlet and a third outlet, the crushed particle inlet is connected to the outlet of the pulverizing device; The partition is cylindrical and vertically arranged in the shell, the bottom of the partition is fixedly connected to the bottom of the shell, the outer wall of the partition is separated from the inner wall of the shell by a certain distance, and a first channel is formed between the side wall of the partition and the side wall of the shell, and the first channel is connected to the second outlet; The sieve plate is circular and horizontally arranged on the top of the partition plate, and the center of the circle is located on the axis of the partition plate. The diameter of the sieve plate is equal to the diameter of the top of the partition plate. The sieve plate is provided with a first opening along its radial direction. The crushed particle inlet is opposite to the portion of the sieve plate where the first opening is not provided, and the portion of the sieve plate opposite to the crushed particle inlet is close to the first opening. The third outlet is connected to the portion of the partition plate located below the sieve plate. A first material guiding member having a second channel disposed therein, the second channel being communicated with the first opening and the first outlet respectively; A plurality of first electromagnets are arranged on the inner side wall of the shell at intervals along the circumferential direction of the shell, the height of each first electromagnet corresponds to the height of the sieve plate and is higher than the height of the second outlet, and each first electromagnet is spaced a certain distance from the sieve plate; A rotating shaft is coaxially arranged with the partition plate, the top of the rotating shaft is located outside the shell and can rotate under the driving of power, the bottom of the rotating shaft passes through the top of the shell and is rotatably connected with the screen plate, and the first opening and the part of the screen plate opposite to the crushed particle inlet are sequentially arranged along the rotation direction of the rotating shaft; The first push plate is arranged on the sieve plate along the radial direction of the sieve plate, and one end of the first push plate is fixedly connected to the rotating shaft, and the other end extends to the outer edge of the sieve plate. The bottom of the first push plate is close to or in contact with the top of the sieve plate.

2. The solid waste recycling device according to claim 1, characterized in that: The shell is in the shape of a hollow cylinder and is coaxially arranged with the partition.

3. The solid waste recycling device according to claim 1, characterized in that: The bottom of the second channel gradually slopes downward, and the end corresponding to the first opening is higher, and the end corresponding to the first outlet is lower. One end of the first opening passes through the outer edge of the sieve plate, and the other end is close to the rotating shaft.

4. The solid waste recycling device according to claim 1, characterized in that: The partition plate is provided with a plurality of through holes spaced apart along its circumferential direction, and the through holes communicate with the interior of the partition plate and the first channel; The magnetic separation and screening combined device also includes: The first material guide plate is hollow inside and has an inverted truncated cone shape with the top and bottom both open. The first material guide plate is located inside the partition plate and its height is lower than the height of the first material guide member. The top of the first material guide plate is fixed to the inner side wall of the partition plate and is seamlessly connected. The bottom of the rotating shaft passes through the first material guide plate downward, and the rotating shaft does not contact the bottom of the first material guide plate. The support plate is circular and is arranged inside the partition plate and below the first guide plate. The outer edge of the support plate is fixed to the inner side wall of the partition plate and seamlessly connected. The support plate is provided with a second opening in its radial direction. Each through hole is located between the first guide plate and the support plate, and the bottom of each through hole is flush with the top of the support plate. A second material guiding member having a third channel disposed therein, the third channel being communicated with the second opening and the third outlet respectively; A plurality of second electromagnets are arranged on the inner side wall of the shell at intervals along the circumferential direction of the shell, the second electromagnets are opposite to the through holes one by one, the height of each second electromagnet is higher than the height of the second outlet, and each second electromagnet is separated from the partition by a certain distance; The second material guide plate is located between the first material guide plate and the support plate, and is separated from the first material guide plate and the support plate by a certain distance. The second material guide plate is conical and is coaxially arranged with the partition plate, and the diameter of its bottom surface is smaller than the diameter of the support plate. The bottom of the rotating shaft passes through the second material guide plate downward, and is rotatably connected with the second material guide plate and the support plate. The second push plate is arranged on the support plate along the radial direction of the support plate, and one end of the second push plate is fixedly connected to the rotating shaft, and the other end extends to the outer edge of the support plate. The bottom of the second push plate is close to or in contact with the top of the support plate.

5. The solid waste recycling device according to claim 4, characterized in that: The bottom of the third channel gradually slopes downward, and the end corresponding to the second opening is higher, and the end corresponding to the third outlet is lower. One end of the second opening passes through the outer edge of the support plate, and the other end is close to the rotating shaft.

6. The solid waste recycling device according to claim 4, characterized in that: A circle of extension platform is protruded outward from the bottom of the second material guide plate, the extension platform is arranged in the horizontal direction, a circle of baffle is arranged at the outer edge of the top of the extension platform in the vertical direction, a third opening is arranged on the extension platform, the third opening is opposite to the part of the support plate where the second opening is not arranged, the part of the support plate opposite to the third opening is close to the second opening, and the second opening and the part of the support plate opposite to the third opening are arranged in sequence along the rotation direction of the rotating shaft; The magnetic separation and screening combined device also includes: At least one third push plate, the bottom of each third push plate is in contact with the outer wall of the second material guide plate and the top of the extension platform, one end of each third push plate is fixedly connected to the rotating shaft, and the other end of each third push plate is in contact with the baffle.

7. The solid waste recycling device according to claim 4, characterized in that: The magnetic separation and screening combined device also includes: The third material guide plate is obliquely arranged in the first channel and is located below the second material guide member. The third material guide plate is fixed to the side walls of the partition and the side walls of the shell and are seamlessly connected. The bottom of the second outlet extends to the lower end of the third material guide plate.

8. The solid waste recycling device according to claim 6, characterized in that: The magnetic separation and screening combined device also includes: At least one fourth push plate, the bottom of each fourth push plate is in contact with the inner wall of the first guide plate, one end of each fourth push plate is fixedly connected to the rotating shaft, and the other end extends to the inner wall close to the partition or in contact with the inner wall of the partition.

9. The solid waste recycling device according to claim 8, characterized in that: There are two of each of the third push plate and the fourth push plate, and the vertical projection of the extension platform is located within the vertical projection of the support plate.

10. The solid waste recycling device according to claim 1, characterized in that: The crushed particle inlet is opposite to the edge of the screen plate, and no screen holes are arranged on the portion of the screen plate opposite to the crushed particle inlet.

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