Screening device for solid waste treatment

Abstract

The utility model discloses a screening device for solid waste treatment, and belongs to the field of solid waste treatment. The device mainly comprises a vibrating screen and a crusher which are arranged on a first rack, building solid waste is firstly screened on the vibrating screen, sandy soil in the building solid waste is separated out, then large building solid waste falls into a feeding port in the top of the crusher from the edge of a mesh plate of the vibrating screen, and the large building solid waste is crushed into small blocks through the crusher and then is discharged from a discharging port in the bottom.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid waste treatment field especially a kind of screening device for solid waste treatment. BACKGROUND

[0002] Construction solid waste refers to solid waste generated in the construction, maintenance and demolition process of buildings. Construction solid waste is mostly solid waste, including soil, stone, concrete blocks, broken bricks, wood, metal, etc. Among them, soil, stone, concrete blocks and broken bricks account for more than 90%. These are good recycled building materials after processing. In the prior art, the construction solid waste treatment scheme is as follows: a construction solid waste crusher is used as the main machine to provide feeding, crushing, screening, conveying, dust suppression and light material treatment processes. Sand is mixed in construction solid waste, and a large amount of dust is generated during the crushing process. If sand is not separated, accurate batching during subsequent use cannot be achieved. Therefore, small particle sand needs to be screened out before the construction solid waste is fed into the crusher. SUMMARY

[0003] The utility model aims at providing a kind of screening device for solid waste treatment, to solve the problem that small particle sand is screened out before construction solid waste is fed into the crusher.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] The utility model provides a kind of screening device for solid waste treatment, including first rack, the first rack is erected vibration screen and crusher;The discharge port of the vibration screen is communicated with the feed inlet of the crusher;The inside of the vibration screen is provided with screen plate, screen plate is composed of two parts of solid plate and mesh plate, mesh plate is formed with mesh hole, and mesh plate is located at the discharge port side of the vibration screen;Sand falls into the inverted hopper below mesh plate after passing through mesh plate;Large construction solid waste on mesh plate falls into the feed inlet at the top of the crusher from the edge of mesh plate, and the large construction solid waste is crushed into small pieces by the crusher and discharged from the bottom discharge port.

[0006] In one possible design, the vibration screen includes an outer frame and a vibrating frame, the bottom of the outer frame is connected to the rectangular frame of the first rack, and the top of the outer frame is provided with a material groove;The opening side of the material groove is communicated with the feed inlet at the top of the crusher;The vibrating frame is installed below the material groove, and the bottom four corners of the vibrating frame are connected to the rectangular frame through spring support seats;The vibrating frame is internally installed with a screen plate;The vibrating frame is driven to vibrate by a vibrating drive device.

[0007] In a possible design, the spring support seat comprises two guide columns, two first springs, two second springs, a lower support plate and two caps; the lower support plate is installed on the rectangular frame, two guide columns are installed vertically on the lower support plate, the guide columns pass through the flange plate formed by the edges of the vibrating frame upward, and the caps are installed on the top of the guide columns; the first spring is sleeved on the guide column between the flange plate and the lower support plate; and the second spring is sleeved on the guide column between the flange plate and the cap.

[0008] In a possible design, a flexible fence belt is arranged on the upper edge of the vibrating frame, and the flexible fence belt is arranged around the upper edge of the vibrating frame except the position where the vibrating frame is communicated with the feed inlet on the top of the crusher; and the upper edge of the flexible fence belt is connected with the material tank.

[0009] In a possible design, the vibrating driving device is a vibrating motor installed on the bottom or side of the vibrating frame.

[0010] In a possible design, the vibrating driving device adopts an eccentric shaft driving structure, an eccentric shaft is installed in the center of the bottom of the vibrating frame, the eccentric shaft is connected with a driving motor through a belt transmission mechanism, and the vibrating frame is driven to vibrate by the driving motor.

[0011] In a possible design, the crusher adopts a jaw crusher, the crusher comprises a shell, a feed inlet is arranged on the top of the shell, and a discharge outlet is arranged on the bottom of the shell; a movable jaw and a fixed tooth plate are arranged in the shell, and a crushing cavity is formed between the movable jaw and the fixed tooth plate; the movable jaw is suspended on an eccentric shaft, a flywheel and a belt pulley are respectively arranged on the two ends of the eccentric shaft, and the belt pulley is connected with a motor through a belt.

[0012] In a possible design, a first conveyor is arranged below the discharge outlet of the inverted hopper, and the first conveyor extends obliquely upward from below the first rack to one side of the first rack.

[0013] In a possible design, a second conveyor is arranged at the discharge outlet of the crusher, and the second conveyor extends along the arrangement direction of the first rack.

[0014] The beneficial effects of the utility model lie in that the utility model provides a screening device for solid waste treatment, which mainly comprises a vibrating screen and a crusher arranged on a first rack; building solid waste is first screened on the vibrating screen, and sand and soil are separated out, then large building solid waste falls into the feed inlet on the top of the crusher from the edge of the mesh plate of the vibrating screen, and the large building solid waste is crushed into small pieces by the crusher and discharged from the bottom discharge outlet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a first perspective view of the screening device of the utility model.

[0016] Figure 2The second perspective view of the screening device is shown.

[0017] Figure 3 The internal structure of the screening device is shown.

[0018] Figure 4 The structure of the rectangular frame vibrating screen is shown.

[0019] Figure 5 The structure of the spring support seat is shown.

[0020] Figure 6 The structure of the vibrating frame is shown.

[0021] Figure 7 The bottom structure of the inverted hopper is shown.

[0022] Figure 8 The structure of the rapping mechanism is shown.

[0023] Figure 9 The structure of the two conveyors is shown.

[0024] Figure 10 The structure of the first conveyor is shown.

[0025] Figure 11 The connection structure of the dust collector is shown.

[0026] The figure mark explanation: the first rack 1, the support beam 101, the column 102, the rectangular frame 103; the vibrating screen 2, the screen plate 201, the solid plate 201.1, the mesh plate 201.2, the inverted hopper 202, the outer frame 203, the vibrating frame 204, the flange plate 205, the support beam 206, the material groove 207, the spring support seat 208, the guide column 208.1, the first spring 208.2, the second spring 208.3, the lower support plate 208.4, the cap 208.5, the flexible fence belt 209, the groove cover 210; the crusher 3, the shell 301, the moving jaw 302, the fixed tooth plate 303, the belt pulley 304, the motor 305; the rapping mechanism 4, the first rotating shaft 401, the hand crank 402, the driving disc 403, the arc convex 403.1, the first arc edge 403.2, the straight edge 403.3, the rapping hammer 404, the hammer rod 404.1, the hammer head 404.2, the hammer frame 405, the second rotating shaft 406; the first conveyor 5, the second rack 501, the belt conveyor 502, the dust cover 503, the discharge hopper 504, the discharge port 505, the spray pipe 506; the second conveyor 6, the dust collector 7, the air inlet pipe 8, the air outlet pipe 9, the fan 10. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Referring to Figure 1 Fig. 1 is a first perspective view of a screening device according to the present application. Figure 2 Fig. 2 is a second perspective view of a screening device according to the present application. Figure 3 Fig. 3 is a cross-sectional view of the internal structure of a screening device according to the present application.

[0032] As shown in Figures 1 to 3As shown, the embodiment of the present application provides a screening device for solid waste treatment, which comprises a first rack 1, a vibrating screen 2 and a crusher 3 arranged on the first rack 1; one side of the vibrating screen 2 is provided with a feeding port, and the other side is provided with a discharging port; the discharging port of the vibrating screen 2 is in communication with the feeding port of the crusher 3. The vibrating screen 2 is arranged obliquely, and the discharging port of the vibrating screen 2 is lower than the feeding port side. As shown in Figure 3 As shown, the building solid waste is poured from the left side of the vibrating screen 2, and the discharging port on the right side of the vibrating screen 2 is in communication with the feeding port on the top of the crusher 3.

[0033] As shown in Figure 2 The vibrating screen 2 is internally provided with a screen plate 201, which is composed of a solid plate 201.1 and a mesh plate 201.2, the mesh plate 201.2 is formed with mesh holes, the size of the mesh holes can be selected according to the particle size of the sand in the building solid waste to be screened; the mesh plate 201.2 is located on the discharging port side of the vibrating screen 2; the mesh plate 201.2 allows small particles of sand to pass through, and the sand passing through the mesh plate 201.2 falls into the material hopper 202 arranged below the mesh plate 201.2. The large building solid waste on the mesh plate 201.2 continues to move towards the crusher 3, and the large building solid waste falls into the feeding port on the top of the crusher 3 from the edge of the mesh plate 201.2, and the large building solid waste is crushed into small pieces by the crusher 3 and discharged from the bottom discharging port. The screening device in the present application is used to screen out the sand in the building solid waste, and then crush it.

[0034] As shown in Figure 1 , Figure 2 In a specific embodiment of the present application, the first rack 1 comprises two parallel support beams 101 supported by a plurality of vertically arranged columns 102. A rectangular frame 103 is arranged above the left side of the two support beams 101, and the vibrating screen 2 is mounted on the rectangular frame 103. As shown in Figure 4 The structure of the vibrating screen 2 on the rectangular frame 103 of the present application is shown. The vibrating screen 2 comprises an outer frame 203 and a vibrating frame 204, the bottom of the outer frame 203 is connected to the rectangular frame 103, and the top of the outer frame 203 is provided with a material chute 207. As shown in Figure 2 The right side of the material chute 207 is open and in communication with the feeding port on the top of the crusher 3. As shown in Figure 4 The vibrating frame 204 is mounted below the material chute 207, and the bottom four corners of the vibrating frame 204 are connected to the rectangular frame 103 through spring support seats 208.

[0035] As shown in Figure 5The structure of the spring support seat 208 is shown in the figure. In one embodiment of the application, the spring support seat 208 includes two guide columns 208.1, two first springs 208.2, two second springs 208.3, a lower support plate 208.4, and two cover caps 208.5. As shown in Figure 5 The lower support plate 208.4 is installed on the rectangular frame 103, and two guide columns 208.1 are vertically installed on the lower support plate 208.4, the guide columns 208.1 pass through the flange plate 205 formed on the edge of the vibrating frame 204 upward, and the cover caps 208.5 are installed on the top of the guide columns 208.1. The first springs 208.2 are sleeved on the guide columns 208.1 between the flange plate 205 and the lower support plate 208.4; the second springs 208.3 are sleeved on the guide columns 208.1 between the flange plate 205 and the cover caps 208.5. The vibrating frame 204 can move up and down along the guide columns 208.1.

[0036] As shown in Figure 6 The structure of the vibrating frame 204 is shown in the figure. The vibrating frame 204 is open on the right side and communicates with the feed inlet on the top of the crusher 3. A support beam 206 is arranged inside the vibrating frame 204, and a screen plate 201 is installed on the support beam 206. In addition, a flexible barrier strip 209 is arranged on the upper edge of the vibrating frame 204, which can be made of dustproof cloth. In addition to the opening on the right side of the vibrating frame 204, the flexible barrier strip 209 is arranged around the upper edge of the vibrating frame 204, and the upper edge of the flexible barrier strip 209 is connected with a material tank 207. As shown in Figure 5 The flexible barrier strip 209 is used to seal the gap between the vibrating frame 204 and the material tank 207.

[0037] The vibrating frame 204 is driven to vibrate by a vibrating drive device. The vibrating drive device can have various forms, which are illustrated below. The vibrating drive device can be a vibrating motor installed on the bottom or side of the vibrating frame 204. The vibrating drive device can also adopt an eccentric shaft driving structure, as shown in Figure 4 The eccentric shaft is installed at the center of the bottom of the vibrating frame 204, and the eccentric shaft is connected to a driving motor through a belt transmission mechanism to drive the vibrating frame 204 to vibrate.

[0038] As shown in Figure 4 The inverted hopper 202 is installed on the right side and bottom of the vibrating frame 204, and the top of the inverted hopper 202 is open and located directly below the mesh plate 201.2. The inverted hopper 202 is connected with the support beam 101 through a connecting seat.

[0039] As shown in Figure 7The bottom structure of the pouring hopper 202 is shown. In an embodiment of the application, the pouring hopper 202 has a downwardly inclined channel, and the bottom of the pouring hopper 202 forms a discharge port. A rapping mechanism 4 is mounted on the bottom surface of the pouring hopper 202, and the rapping mechanism 4 is used to strike the bottom surface of the pouring hopper 202 to discharge the residual sand from the pouring hopper 202. As shown in the figure, the rapping mechanism 4 includes a first rotating shaft 401, a hand crank 402, a driving disc 403, a rapping hammer 404, and a hammer holder 405. The first rotating shaft 401 is rotatably arranged below the bottom surface of the pouring hopper 202, and one end of the first rotating shaft 401 penetrates through the side plate of the pouring hopper 202 to connect the hand crank 402. The hand crank 402 is located on the outer side of the pouring hopper 202. The driving disc 403 is arranged in the center of the first rotating shaft 401, and the driving disc 403 rotates together with the first rotating shaft 401. The hammer holder 405 is arranged on the bottom surface of the pouring hopper 202, and the second rotating shaft 406 is arranged on the hammer holder 405 and parallel to the first rotating shaft 401. The rapping hammer 404 is rotatably arranged on the second rotating shaft 406. The rapping hammer 404 includes a hammer rod 404.1 and a hammer head 404.2.

[0040] As shown in the figure, Figure 8 The structure of the rapping mechanism 4 is shown. The second rotating shaft 406 penetrates through the through hole on the hammer rod 404.1, and the hammer rod 404.1 can rotate around the second rotating shaft 406. One end of the hammer rod 404.1 is connected to the hammer head 404.2, and the hammer head 404.2 and the driving disc 403 are located on both sides of the second rotating shaft 406. The other end of the hammer rod 404.1 is located close to the outer side of the driving disc 403. The driving disc 403 is a disc, and four arc-shaped protrusions 403.1 are arranged in a circular array on the edge of the disc. Each arc-shaped protrusion 403.1 is composed of a first arc-shaped side 403.2 and a straight side 403.3, and the straight side 403.3 extends along the radial direction of the disc. The four first arc-shaped sides 403.2 extend in the clockwise direction. When the driving disc 403 rotates counterclockwise, the rapping hammer 404 swings, and the rapping hammer 404 strikes the bottom surface of the pouring hopper 202 during the swinging process. Specifically, when the first arc-shaped side 403.2 passes through the end of the hammer rod 404.1, the rapping hammer 404 swings towards the bottom surface of the pouring hopper 202, and when the top end of the first arc-shaped side 403.2 passes through the end of the hammer rod 404.1, the rapping hammer 404 strikes the bottom surface of the pouring hopper 202. When the arc segment between the two arc-shaped protrusions 403.1 passes through the end of the hammer rod 404.1, the rapping hammer 404 swings away from the bottom surface of the pouring hopper 202.

[0041] As shown in the figure, Figure 3As shown in the specific embodiment of the present application, the crusher 3 adopts a jaw crusher 3, which comprises a shell 301, a feeding port arranged at the top of the shell 301, and a discharging port arranged at the bottom of the shell 301. The shell 301 is internally provided with a movable jaw 302 and a fixed tooth plate 303 arranged oppositely, and a crushing cavity is formed between the movable jaw 302 and the fixed tooth plate 303. The movable jaw 302 is suspended on an eccentric shaft, and a flywheel and a belt pulley 304 are respectively arranged at both ends of the eccentric shaft. The belt pulley 304 is connected to a motor 305 through a belt. The structure of the jaw crusher 3 is a prior art, and thus will not be described herein.

[0042] In an alternative solution, the screening device can further be provided with two conveyors for conveying the separated sand and soil and the crushed material, respectively, to facilitate loading and transfer. As shown in Figure 9 As shown in the structural display diagram of the two conveyors of the present application, a first conveyor 5 is arranged at the discharging port below the inverted hopper 202, and the first conveyor 5 extends obliquely upward from below the support cross beam 101 to one side of the first rack 1. Figure 10 As shown in the structural display diagram of the first conveyor 5 of the present application, the first conveyor 5 comprises a second rack 501 and a belt conveyor 502 arranged on the second rack 501. Figure 10 As shown in the structural display diagram of the first conveyor 5 of the present application, the first conveyor 5 comprises a second rack 501 and a belt conveyor 502 arranged on the second rack 501. Figure 10 As shown in the structural display diagram of the first conveyor 5 of the present application, the first conveyor 5 comprises a second rack 501 and a belt conveyor 502 arranged on the second rack 501.

[0043] The second conveyor 6 is arranged at the discharging port of the crusher 3, and the structure of the second conveyor 6 is the same as that of the first conveyor 5, and the second conveyor 6 extends along the arrangement direction of the first rack 1.

[0044] Further, the material groove 207 is provided with a groove cover 210, which seals the material groove 207, and the groove cover 210 forms a feeding port 208 at the side away from the crusher 3. Figure 11The first conveyor 5 is provided with a dust remover 7 above it, the dust remover 7 is communicated with the material tank 207 through an air inlet pipe 8, the dust remover 7 is connected with a fan 10 through an air outlet pipe 9, and a filter element is arranged in the dust remover 7; the top plate of a dustproof cover 503 of the first conveyor 5 is communicated with the bottom of the dust remover 7 through a pipe. Figure 11 As shown in the figure, the fan 10 sucks the dust generated in the material tank 207 into the dust remover 7 for filtration, and the filtered sand is discharged into the first conveyor 5 for conveying.

[0045] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the utility model without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A screening device for solid waste treatment, characterized in that, The system includes a first frame (1), on which a vibrating screen (2) and a crusher (3) are mounted; the discharge port of the vibrating screen (2) is connected to the feed port of the crusher (3); a screen plate (201) is provided inside the vibrating screen (2), which is composed of a solid plate (201.1) and a perforated plate (201.2), with perforations formed on the perforated plate (201.2), which is located on one side of the discharge port of the vibrating screen (2); sand passes through the perforated plate (201.2) and falls into the discharge hopper (202) provided below the perforated plate (201.2); Large pieces of construction solid waste on the perforated plate (201.2) fall from the edge of the perforated plate (201.2) into the feed inlet at the top of the crusher (3). After being crushed into smaller pieces by the crusher (3), the large pieces of construction solid waste are discharged from the bottom outlet.

2. The screening device for solid waste treatment according to claim 1, characterized in that, The vibrating screen (2) includes an outer frame (203) and a vibrating frame (204). The bottom of the outer frame (203) is connected to the rectangular frame (103) of the first frame (1). The top of the outer frame (203) is provided with a material trough (207). The opening side of the material trough (207) is connected to the feed port at the top of the crusher (3). The vibrating frame (204) is installed below the material trough (207). The four corners of the bottom of the vibrating frame (204) are connected to the rectangular frame (103) through spring support seats (208). A screen plate (201) is installed inside the vibrating frame (204). The vibrating frame (204) is driven to vibrate by a vibration drive device.

3. The screening device for solid waste treatment according to claim 2, characterized in that, The spring support base (208) includes two guide posts (208.1), two first springs (208.2), two second springs (208.3), a lower support plate (208.4), and two caps (208.5). The lower support plate (208.4) is mounted on a rectangular frame (103). Two guide posts (208.1) are vertically mounted on the lower support plate (208.4). The guide posts (208.1) pass upward through the flange plate (205) formed by the edge of the vibration frame (204). The caps (208.5) are installed on the top of the guide posts (208.1). The first springs (208.2) are sleeved on the guide posts (208.1) between the flange plate (205) and the lower support plate (208.4). The second springs (208.3) are sleeved on the guide posts (208.1) between the flange plate (205) and the caps (208.5).

4. The screening device for solid waste treatment according to claim 3, characterized in that, A flexible baffle (209) is provided on the upper edge of the vibration frame (204). Except for the position where the vibration frame (204) is connected to the feed inlet at the top of the crusher (3), the flexible baffle (209) is provided around the upper edge of the vibration frame (204); the upper edge of the flexible baffle (209) is connected to the material trough (207).

5. The screening device for solid waste treatment according to claim 2, characterized in that, The vibration drive device is a vibration motor installed at the bottom or side of the vibration frame (204).

6. The screening device for solid waste treatment according to claim 2, characterized in that, The vibration drive device adopts an eccentric shaft drive structure. An eccentric shaft is installed at the center of the bottom of the vibration frame (204). The eccentric shaft is connected to the drive motor through a belt transmission mechanism, and the drive motor drives the vibration frame (204) to vibrate.

7. The screening device for solid waste treatment according to claim 1, characterized in that, The crusher (3) is a jaw crusher (3). The crusher (3) includes a shell (301). The top of the shell (301) is provided with a feed port and the bottom is provided with a discharge port. The shell (301) is provided with opposing moving jaws (302) and fixed tooth plates (303). A crushing chamber is formed between the moving jaws (302) and the fixed tooth plates (303). The moving jaws (302) are suspended on an eccentric shaft. A flywheel and a pulley (304) are respectively installed at both ends of the eccentric shaft. The pulley (304) is connected to the motor (305) through a belt.

8. The screening device for solid waste treatment according to claim 1, characterized in that, A first conveyor (5) is provided at the discharge port below the hopper (202). The first conveyor (5) extends obliquely upward from below the first frame (1) to one side of the first frame (1).

9. The screening device for solid waste treatment according to claim 1, characterized in that, The bottom discharge port of the crusher (3) is provided with a second conveyor (6), which extends along the direction of the first frame (1).

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