Construction waste resource recycling aggregate grading device

Abstract

The utility model relates to the technical field of recycled aggregate grading, and disclose a kind of building waste resource recycling aggregate grading device, including bottom plate, the upper portion of bottom plate is provided with processing box, the inside fixed mounting of processing box is inclinedly arranged and is equipped with screening plate, the upper end of screening plate is equipped with multiple screening holes, and one end of processing box is communicated with feeding hopper, and the other end is equipped with discharge port, the upper portion of screening plate is provided with dust fall structure, dust fall structure includes the water storage box of being arranged in the inside of processing box and being located the upper portion of screening plate, and the lower portion of water storage box is fixedly connected with shell. When external water supply equipment carries out water supply by telescopic pipe, water source enters water storage box through water inlet pipe, and finally injects into the pipe body of spray assembly through drain pipe, water pressure as power, directly overcome the tension of first spring, push down the pipe body, make its outside spray hole expose, immediately carry out spray dust fall operation, realize better dust fall effect.

Description

Technical Field

[0001] This utility model relates to the field of recycled aggregate grading technology, specifically a grading device for recycled aggregate from construction waste. Background Technology

[0002] The construction waste recycling aggregate grading device is a mechanical device specifically designed to separate and classify construction waste that has undergone preliminary crushing and pretreatment according to different particle sizes.

[0003] In the operation of existing construction waste recycling aggregate grading devices, when construction waste mixed with powder and debris is fed into the equipment for screening, the high-speed vibration and collision process instantly arouses a large amount of dust. These fine particles form a positive pressure airflow in the equipment cavity, and inevitably carry some dust out of the static feed inlet opening, resulting in a harsh working environment and causing fugitive emissions pollution. Utility Model Content

[0004] The purpose of this utility model is to provide a grading device for recycled aggregates from construction waste, which solves the problem that when construction waste mixed with powder and debris is fed into the equipment for screening, the high-speed vibration and collision process will instantly generate a large amount of dust, which will continuously escape outward through the feed inlet opening.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a grading device for recycled aggregates from construction waste, comprising a base plate, a processing box disposed above the base plate, an inclined screening plate fixedly installed inside the processing box, a plurality of screening holes being formed at the upper end of the screening plate, a feed hopper being connected to one end of the processing box, and a discharge port being formed at the other end, a dust suppression structure being disposed above the screening plate, the dust suppression structure including a water storage box disposed inside the processing box and above the screening plate, an outer shell being fixedly connected to the lower part of the water storage box, a cover plate being fixedly installed at the bottom of the outer shell, a plurality of mounting holes being formed on the cover plate, a spray assembly being disposed in each mounting hole, and a plurality of drain pipes extending into the interior of the spray assembly being connected to the bottom of the water storage box.

[0007] Furthermore, the spray assembly includes a pipe body that is slidably connected inside the mounting hole. The upper end of the pipe body is provided with a ring body, and a first spring is fixedly connected between the ring body and the inner top of the outer shell. The lower end of the drain pipe extends into the interior of the pipe body.

[0008] Furthermore, multiple spray holes are provided on the side wall of the pipe, and a pin is fixedly installed at the lower end of the pipe.

[0009] Furthermore, an electric push rod is fixedly installed at the upper end of the treatment box. The output end of the electric push rod extends into the interior of the treatment box and is fixedly connected to the upper end of the water storage box. A water inlet pipe is connected to the upper end of the water storage box, and the upper end of the water inlet pipe passes through the treatment box and extends upward.

[0010] Furthermore, two side plates are symmetrically arranged on the upper end of the base plate, and a sliding groove is opened on the opposite side of the two side plates. A guide rod is fixedly installed in each of the two sliding grooves. Slider blocks that slide in cooperation with the guide rods are fixedly connected to both ends of the processing box. A second spring is sleeved on the outside of the guide rod. One end of the second spring is fixedly installed at the lower end of the slider, and the other end of the second spring is fixedly installed at the inner bottom of the sliding groove.

[0011] Furthermore, a connecting shaft is rotatably connected between the two side plates, and several cams for impacting the processing box are fixedly installed on the outer side of the connecting shaft. A drive motor is fixedly installed on the bottom plate, and the output end of the drive motor is connected to the connecting shaft via a coupling.

[0012] Furthermore, a collection box is installed at the bottom of the processing box, and a handle is provided on one side of the collection box. The number of screening holes is consistent with the number of spray components and corresponds one-to-one.

[0013] This utility model has the following beneficial effects:

[0014] (1) When the external water supply equipment of this utility model supplies water through the telescopic pipe, the water source enters the water storage box through the inlet pipe and is finally injected into the pipe body of the spray assembly through the drain pipe. The water pressure serves as the power to directly overcome the tension of the first spring and push the pipe body downward, exposing the spray holes on its outer side, and then spraying dust suppression operation is carried out to achieve a better dust suppression effect.

[0015] (2) By starting the electric push rod, the output end of the present invention directly pushes the water storage box, the outer shell and the cover plate as a rigid component to move downward in a forced manner. This action makes the pins of each spray component accurately and vertically pressed into the corresponding screening holes. The pins that penetrate into the holes use their hard conical tips to push the aggregate or debris stuck in the holes directly to the bottom of the screening plate, thereby completing the forced unblocking of all screening holes.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is an exploded view of the dust suppression structure of this utility model;

[0021] Figure 4 This is a cross-sectional view of the dust-reducing structure of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Base plate; 101. Side plate; 2. Processing box; 201. Discharge port; 202. Slider; 3. Screening plate; 4. Collection box; 5. Feed hopper; 6. Dust suppression structure; 601. Water storage box; 602. Outer shell; 603. Cover plate; 604. Spray assembly; 605. Drain pipe; 606. Water inlet pipe; 6041. Pipe body; 6042. First spring; 6043. Ejector pin; 7. Electric push rod; 8. Guide rod; 9. Connecting shaft; 10. Cam; 11. Drive motor; 12. Second spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4As shown, this utility model is a grading device for recycled aggregates from construction waste, including a base plate 1, a processing box 2 above the base plate 1, an inclined screening plate 3 fixedly installed inside the processing box 2, multiple screening holes at the upper end of the screening plate 3, a feeding hopper 5 connected to one end of the processing box 2, and a discharge port 201 at the other end, a dust suppression structure 6 above the screening plate 3, the dust suppression structure 6 including a water storage box 601 located inside the processing box 2 and above the screening plate 3, a shell 602 fixedly connected to the lower part of the water storage box 601, a cover plate 603 fixedly installed at the bottom of the shell 602, multiple mounting holes on the cover plate 603, a spray assembly 604 installed in each mounting hole, and multiple drain pipes 605 extending into the spray assembly 604 connected to the bottom of the water storage box 601.

[0026] The spray assembly 604 includes a pipe body 6041, which is slidably connected to the inside of the mounting hole. The upper end of the pipe body 6041 is provided with a ring body. A first spring 6042 is fixedly connected between the ring body and the inner top of the outer shell 602. The lower end of the drain pipe 605 extends into the inside of the pipe body 6041.

[0027] Multiple spray holes are provided on the side wall of the pipe body 6041, and a pin 6043 is fixedly installed at the lower end of the pipe body 6041.

[0028] An electric push rod 7 is fixedly installed on the upper end of the treatment box 2. The output end of the electric push rod 7 extends into the interior of the treatment box 2 and is fixedly connected to the upper end of the water storage box 601. The upper end of the water storage box 601 is connected to a water inlet pipe 606. The upper end of the water inlet pipe 606 passes through the treatment box 2 and extends upward.

[0029] One end of the inlet pipe 606 is fixedly installed with a telescopic pipe, and the other end of the telescopic pipe is connected to the water supply end of the external water supply equipment. When the external water supply equipment supplies water through the telescopic pipe, the water source enters the water storage box 601 through the inlet pipe 606 and finally flows into the pipe body 6041 of the spray assembly 604 through the drain pipe 605. The water pressure serves as the power to directly overcome the tension of the first spring 6042 and push the pipe body 6041 downward, exposing the spray holes on its outer side, and then performing the spray dust suppression operation.

[0030] A collection box 4 is installed at the bottom of the processing box 2. A handle is provided on one side of the collection box 4. The number of screening holes is consistent with the number of spray components 604 and corresponds one-to-one.

[0031] When the screening operation is blocked by the screening holes, the water supply is first turned off, so that the pipe body 6041 is reset and rises under the action of the first spring 6042, and the ejector pin 6043 is retracted. Then, the electric push rod 7 is activated, and its output end directly pushes the water storage box 601, the outer shell 602 and the cover plate 603 as a rigid component to move downward. This action makes the ejector pins 6043 of each spray component 604 accurately and vertically pressed into the corresponding screening holes. The ejector pins 6043 that are deep in the holes use their hard conical tips to push the aggregate or debris stuck in the holes directly to the bottom of the screening plate 3, thereby completing the forced unblocking of all screening holes.

[0032] Two side plates 101 are symmetrically arranged on the upper end of the base plate 1. Each side plate 101 has a groove on its opposite side. A guide rod 8 is fixedly installed in each groove. The two ends of the processing box 2 are fixedly connected to sliders 202 that slide with the guide rods 8. A second spring 12 is sleeved on the outside of the guide rods 8. One end of the second spring 12 is fixedly installed at the lower end of the slider 202, and the other end of the second spring 12 is fixedly installed at the bottom of the groove.

[0033] A connecting shaft 9 is rotatably connected between the two side plates 101. Several cams 10 for impact treatment box 2 are fixedly installed on the outside of the connecting shaft 9. A drive motor 11 is fixedly installed on the bottom plate 1. The output end of the drive motor 11 is connected to the connecting shaft 9 through a coupling.

[0034] When the drive motor 11 starts, it drives the connecting shaft 9 and the cam 10 fixed on it to rotate synchronously. When the cam 10 rotates to its long diameter end, it will hit and push the processing box 2. The sliders 202 at both ends of the processing box 2 will then stretch the second spring 12 and slide upward along the guide rod 8. As the cam 10 continues to rotate to its short diameter end, the thrust on the processing box 2 disappears. At this time, the stretched second spring 12 recovers its elasticity, pulls the slider 202 and drives the entire processing box 2 to bounce downward along the guide rod 8. This cycle repeats itself. The continuous rotation of the cam 10 and the reciprocating rebound of the second spring 12 together give the processing box 2 a continuous, high-frequency up and down vibration trajectory.

[0035] In use, the mixed aggregates are fed into the feed hopper 5 and fall onto the inclined screening plate 3. At this time, the drive motor 11 starts and drives the cam 10 on the connecting shaft 9 to rotate continuously. When the long diameter end of the cam 10 pushes the processing box 2, the sliders 202 at both ends of the box slide upward along the guide rod 8 and stretch the second spring 12. When the cam 10 turns to the short diameter end, the stretched second spring 12 pulls the processing box 2 downward and rebounds. This cycle gives the processing box 2 continuous and high-frequency up and down vibration, causing the aggregates to jump, roll and move forward on the screening plate 3. Fine materials that meet the specifications fall into the collection box 4 at the bottom through the screening holes, while qualified coarse materials are discharged from the discharge port 201 at the bottom along the plate surface, thus completing the screening and collection of aggregates.

[0036] During this screening process, in order to suppress dust, an external water source is pumped into the water storage box 601 through the telescopic pipe and the water inlet pipe 606. The water pressure is then transmitted to the inside of the pipe body 6041 of each spray assembly 604 through the drain pipe 605. This water pressure overcomes the tension of the first spring 6042 and pushes the pipe body 6041 downward, exposing the spray holes on its side wall. The water flow is then precisely sprayed onto the dust stirred up by the aggregate, achieving dust suppression at the source.

[0037] If the screening hole becomes clogged, first shut off the water supply. The pipe body 6041 retracts along with the ejector pin 6043 under the reset of the first spring 6042. Then, the electric push rod 7 is activated, and its output end pushes the water storage box 601, the outer shell 602 and the cover plate 603 to move down as a whole, forcing the ejector pins 6043 at the lower end of all spray components 604 to be precisely inserted into the corresponding screening hole, pushing off the blockage, thereby completing a fast and efficient forced unblocking and ensuring the continuity of production.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A grading device for recycled aggregate from construction waste, comprising a base plate (1), a processing box (2) disposed above the base plate (1), an inclined screening plate (3) fixedly installed inside the processing box (2), a plurality of screening holes being provided at the upper end of the screening plate (3), a feed hopper (5) being connected to one end of the processing box (2), and a discharge port (201) being provided at the other end, characterized in that: A dust-reducing structure (6) is provided above the screening plate (3); The dust suppression structure (6) includes a water storage box (601) disposed inside the processing box (2) and above the screening plate (3). A shell (602) is fixedly connected to the bottom of the water storage box (601). A cover plate (603) is fixedly installed on the bottom of the shell (602). A plurality of mounting holes are provided on the cover plate (603). A spray assembly (604) is provided in each mounting hole. A plurality of drain pipes (605) extending into the spray assembly (604) are connected to the bottom of the water storage box (601).

2. The grading device for recycled aggregates from construction waste according to claim 1, characterized in that: The spray assembly (604) includes a pipe body (6041) which is slidably connected to the inside of the mounting hole. The upper end of the pipe body (6041) is provided with a ring body. A first spring (6042) is fixedly connected between the ring body and the inner top of the outer shell (602). The lower end of the drain pipe (605) extends into the inside of the pipe body (6041).

3. The grading device for recycled aggregate from construction waste according to claim 2, characterized in that: The tube body (6041) has multiple spray holes on its side wall, and a pin (6043) is fixedly installed at the lower end of the tube body (6041).

4. A grading device for recycled aggregates from construction waste according to claim 3, characterized in that: An electric push rod (7) is fixedly installed at the upper end of the treatment box (2). The output end of the electric push rod (7) extends into the interior of the treatment box (2) and is fixedly connected to the upper end of the water storage box (601). The upper end of the water storage box (601) is connected to a water inlet pipe (606). The upper end of the water inlet pipe (606) passes through the treatment box (2) and extends upward.

5. A grading device for recycled aggregates from construction waste according to claim 1, characterized in that: The upper end of the base plate (1) is symmetrically provided with two side plates (101). Each of the two side plates (101) has a sliding groove on its opposite side. Each of the two sliding grooves has a guide rod (8) fixedly installed in it. The two ends of the processing box (2) are fixedly connected with sliders (202) that slide in cooperation with the guide rods (8). A second spring (12) is sleeved on the outside of the guide rod (8). One end of the second spring (12) is fixedly installed at the lower end of the slider (202), and the other end of the second spring (12) is fixedly installed at the inner bottom of the groove.

6. A grading device for recycled aggregates from construction waste according to claim 5, characterized in that: A connecting shaft (9) is rotatably connected between the two side plates (101). Several cams (10) for impacting the processing box (2) are fixedly installed on the outside of the connecting shaft (9). A drive motor (11) is fixedly installed on the bottom plate (1). The output end of the drive motor (11) is connected to the connecting shaft (9) through a coupling.

7. A grading device for recycled aggregates from construction waste according to claim 1, characterized in that: The bottom of the processing box (2) is equipped with a collection box (4), and a handle is provided on one side of the collection box (4). The number of the screening holes is consistent with the number of the spray assembly (604) and corresponds one-to-one.

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