A building recycled aggregate screening device

Abstract

The utility model discloses a building recycled aggregate screening device relates to building material recycling technical field, the utility model discloses a support is provided with separation subassembly at the top of support, and the outer surface of separation subassembly is provided with open and close subassembly, and the inside of open and close subassembly is provided with limiting component. The utility model discloses through the adjustment of separation subassembly and open and close subassembly, and the approximate proportion of coarse aggregate and fine aggregate in aggregate is observed before screening aggregate, when the proportion of coarse aggregate is more, and the discharge port size above open and close subassembly is increased by promoting open and close subassembly to rotate down, when the proportion of fine aggregate is more, and the discharge port size below open and close subassembly is increased by promoting open and close subassembly to rotate up, and then start separation subassembly to screen aggregate, and the coarse aggregate and fine aggregate after screening are discharged from open and close subassembly, and the open and close subassembly of dynamic adjustment can better cope with the flow peak value of coarse aggregate and fine aggregate, and avoid the situation of jamming.

Description

Technical Field

[0001] This utility model belongs to the field of building material recycling technology, and specifically relates to a screening device for recycled building aggregates. Background Technology

[0002] Recycled aggregate from construction waste refers to building materials that can replace natural aggregates, obtained through the professional crushing, screening, and purification of waste materials such as concrete blocks, waste bricks, and slag generated during building demolition and construction. With the continuous advancement of urbanization in my country, the recycling and reuse of construction waste has become a key approach to addressing environmental pressures and resource shortages. In this transformation process, screening technology, as the core link in recycled aggregate production, directly determines the particle size distribution and quality grade of the final product. Precise grading of the crushed mixed aggregate according to particle size is essential to meet the technical requirements of different engineering applications.

[0003] The current mainstream construction waste recycled aggregate screening equipment mainly adopts a rigid welded structure for the discharge channel design. However, the proportion of coarse aggregate in each batch of recycled aggregate is different, which can cause the discharge port corresponding to the aggregate with a higher proportion to be prone to blockage. Utility Model Content

[0004] The current mainstream construction waste recycled aggregate screening devices mainly adopt a rigid welded structure for the discharge channel design. However, the proportion of coarse aggregate in each batch of recycled aggregate is different, which can easily cause blockage at the discharge port corresponding to the aggregate with a higher proportion. This utility model proposes a construction waste recycled aggregate screening device to overcome the above-mentioned technical problems existing in the existing related technologies.

[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 screening device for recycled aggregates in construction, comprising a support frame, a separation component on the top of the support frame, an opening and closing component on the outer surface of the separation component, a limiting component inside the opening and closing component, and an air screen component on the outer surface of the separation component. The separation component is used to separate aggregates of different sizes, the opening and closing component is used to change the size of the discharge port, the limiting component is used to limit and fix the opening and closing component, and the air screen component is used to blow out fine powder.

[0007] Furthermore, the separation assembly includes a separation chamber, a first spring is fixedly connected to the outer surface of the separation chamber, the first spring is fixedly connected to the top of the support, a vibration motor is fixedly installed at the bottom of the separation chamber, and a screen is fixedly installed inside the separation chamber.

[0008] Furthermore, the opening and closing assembly includes a rotating plate, and a pin is fixedly connected to the outer surface of the rotating plate. The rotating plate is rotatably connected to the separation chamber through the pin. A fixed box is fixedly connected to the outer surface of the separation chamber. Limiting holes are formed on the outer surface of the fixed box, and there are multiple sets of limiting holes.

[0009] Furthermore, the limiting assembly includes a limiting rod, one end of which is fixedly connected to a bolt, and the other end of which is fixedly connected to a limiting plate. The limiting rod is inserted into a limiting hole. A nut is threaded onto the outer surface of the bolt. A second spring is fixedly connected to the outer surface of the limiting plate. A push rod is fixedly connected to the outer surface of the limiting rod. Both the limiting rod and the limiting plate are slidably connected inside the rotating plate. The end of the second spring is fixedly connected inside the rotating plate.

[0010] Furthermore, the air screen assembly includes a cover plate, which is fixedly installed on the top of the separation chamber. A mounting base is fixedly connected to the top of the cover plate. A first partition and a fan are fixedly connected inside the mounting base. A second partition is fixedly connected to the outer surface of the separation chamber, and the second partition is located at the bottom of the first partition.

[0011] Furthermore, a handle is rotatably connected to the outer surface of the separation chamber, a latch is rotatably connected to the outer surface of the handle, and a locking hook is fixedly connected to the outer surface of the cover plate. The separation chamber is fixed to the cover plate by the latch and the locking hook.

[0012] Furthermore, a collection hopper is fixedly connected to the bottom of the separation chamber, and the collection hopper is located at the bottom of the second partition.

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

[0014] 1. This utility model, through the adjustment of the separation component and the opening and closing component, observes the approximate proportion of coarse and fine aggregates in the aggregate before screening. When the proportion of coarse aggregates is relatively large, the opening and closing component is pushed to rotate downward, increasing the size of the discharge port above the opening and closing component. When the proportion of fine aggregates is relatively large, the opening and closing component is pushed to rotate upward, increasing the size of the discharge port below the opening and closing component. Then, the separation component is activated to screen the aggregates. The screened coarse and fine aggregates are discharged from the opening and closing component. The dynamically adjusted opening and closing component can better handle the peak flow of coarse and fine aggregates and avoid blockage.

[0015] 2. This utility model connects a rotating plate and a limiting rod. The limiting rod is slidably connected inside the rotating plate. Pushing the limiting rod causes the bolt to move and separate from the limiting hole on the outer surface of the fixed box, releasing the limiting fixation between the rotating plate and the fixed box. At this time, the rotating plate can be pushed to rotate to adjust the opening size. After adjustment, the limiting rod is inserted back into the limiting hole at the appropriate position, and the rotating plate is limited and fixed by nuts and bolts, which can prevent unnecessary rotation of the rotating plate during the vibrating screening process.

[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 utility model embodiments, 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 the 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 external contour structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the external contour structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the opening and closing component structure of this utility model;

[0021] Figure 4 This is a cross-sectional view of the rotating plate of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 6 This is a partial structural diagram of the present invention. Figure 1 ;

[0024] Figure 7 This is a partial structural diagram of the present invention. Figure 2 .

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Support frame; 2. Separation assembly; 201. Separation chamber; 202. First spring; 203. Vibration motor; 204. Screen; 3. Opening and closing assembly; 301. Rotating plate; 302. Pin; 303. Fixing box; 304. Limiting hole; 4. Limiting assembly; 401. Limiting rod; 402. Bolt; 403. Limiting plate; 404. Nut; 405. Second spring; 406. Push rod; 5. Air screen assembly; 501. Cover plate; 502. Mounting base; 503. First partition; 504. Fan; 505. Second partition; 6. Handle; 7. Lock; 8. Lock hook; 9. Collection hopper. Detailed Implementation

[0027] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0029] Please see Figures 1-7 As shown, this utility model is a screening device for recycled building aggregates, including a support 1. A separation component 2 is provided on the top of the support 1. An opening and closing component 3 is provided on the outer surface of the separation component 2. A limiting component 4 is provided inside the opening and closing component 3. An air screen component 5 is provided on the outer surface of the separation component 2. The separation component 2 is used to separate aggregates of different sizes. The opening and closing component 3 is used to change the size of the discharge port. The limiting component 4 is used to limit and fix the opening and closing component 3. The air screen component 5 is used to blow out fine powder.

[0030] After the recycled aggregate is poured into the separation component 2 at the top of the support 1, the separation component 2 is started, which vibrates and screens the aggregate. The separated coarse and fine aggregates are discharged from the opening and closing component 3 along the separation component 2. The opening and closing component 3 is adjusted according to the proportion of coarse and fine aggregates. When the proportion of coarse aggregates is high, the opening and closing component 3 is rotated downwards, and when the proportion of coarse aggregates is high, the opening and closing component 3 is rotated upwards. After adjustment, the opening and closing component 3 is fixed by the limiting component 4. The air screen component 5 at the top of the separation component 2 is started. The air screen component 5 can blow out the fine powder carried in the aggregate to avoid affecting the working environment.

[0031] This invention, through the adjustment of the separation component 2 and the opening and closing component 3, allows for the observation of the approximate proportion of coarse and fine aggregates in the aggregate before screening. When the proportion of coarse aggregates is relatively high, the opening and closing component 3 is pushed to rotate downwards, increasing the size of the discharge port above the opening and closing component 3. When the proportion of fine aggregates is relatively high, the opening and closing component 3 is pushed to rotate upwards, increasing the size of the discharge port below the opening and closing component 3. Then, the separation component 2 is activated to screen the aggregates. The screened coarse and fine aggregates are discharged from the opening and closing component 3. The dynamically adjusted opening and closing component 3 can better handle the peak flow rates of coarse and fine aggregates, avoiding blockages.

[0032] In one embodiment, the separation component 2 includes a separation chamber 201, a first spring 202 is fixedly connected to the outer surface of the separation chamber 201, the first spring 202 is fixedly connected to the top of the support 1, a vibration motor 203 is fixedly installed at the bottom of the separation chamber 201, and a screen 204 is fixedly installed inside the separation chamber 201.

[0033] The aggregate is poured into the separation chamber 201, and the vibration motor 203 at the bottom of the separation chamber 201 is started. The vibration motor 203, together with the first spring 202, pushes the separation chamber 201 to vibrate, causing the aggregate in the separation chamber 201 to levitate. The smaller part of the aggregate passes through the screen 204 in the separation chamber 201 and falls below, while the larger aggregate is blocked by the screen 204 and remains above the screen 204, thus achieving the separation of coarse and fine aggregates.

[0034] In one embodiment, the opening and closing component 3 includes a rotating plate 301, with a pin 302 fixedly connected to the outer surface of the rotating plate 301. The rotating plate 301 is rotatably connected to the separation chamber 201 via the pin 302. A fixed box 303 is fixedly connected to the outer surface of the separation chamber 201. A limit hole 304 is formed on the outer surface of the fixed box 303, and there are multiple sets of limit holes 304.

[0035] In one embodiment, the limiting component 4 includes a limiting rod 401, one end of which is fixedly connected to a bolt 402, and the other end of which is fixedly connected to a limiting plate 403. The limiting rod 401 is inserted into a limiting hole 304. A nut 404 is threaded onto the outer surface of the bolt 402. A second spring 405 is fixedly connected to the outer surface of the limiting plate 403. A push rod 406 is fixedly connected to the outer surface of the limiting rod 401. The limiting rod 401 and the limiting plate 403 are slidably connected inside the rotating plate 301. The end of the second spring 405 is fixedly connected inside the rotating plate 301.

[0036] Before screening, observe the approximate proportion of coarse and fine aggregates in the aggregate. Rotate nut 404 to separate it from bolt 402. Push push rod 406 to drive limit rod 401 and bolt 402 to slide, so that limit rod 401 and bolt 402 separate from the limit hole 304 on the side of fixed box 303. Limit rod 401 pushes limit plate 403 to compress second spring 405. At this time, the limiting fixation between rotating plate 301 and fixed box 303 can be released. Push rotating plate 301 to rotate through pin 302, change the position of rotating plate 301 in fixed box 303, so that rotating plate 301 is biased towards the outlet of aggregate with a smaller proportion. Then release push rod 406, second spring 405 pushes limit plate 403 and limit rod 401 to reset. Limit rod 401 drives bolt 402 to insert into limit hole 304. Then install nut 404 on the outer surface of bolt 402 to limit and fix rotating plate 301.

[0037] In one embodiment, the air screen assembly 5 includes a cover plate 501, which is fixedly installed on the top of the separation chamber 201. A mounting base 502 is fixedly connected to the top of the cover plate 501. A first partition 503 and a fan 504 are fixedly connected inside the mounting base 502. A second partition 505 is fixedly connected to the outer surface of the separation chamber 201. The second partition 505 is located at the bottom of the first partition 503.

[0038] The cover plate 501 is used to protect the separation chamber 201 and prevent the fine powder in the aggregate in the separation chamber 201 from flying out and polluting the working environment during vibration. The fan 504 at the top of the cover plate 501 is started. The fan 504 draws in outside air through the first partition 503 and blows it into the interior of the separation chamber 201. The air carries the fine powder in the aggregate through the second partition 505 at the bottom of the separation chamber 201 and then discharges it.

[0039] In one embodiment, for the separation chamber 201, a handle 6 is rotatably connected to the outer surface of the separation chamber 201, a latch 7 is rotatably connected to the outer surface of the handle 6, and a locking hook 8 is fixedly connected to the outer surface of the cover plate 501. The separation chamber 201 is fixed to the cover plate 501 by the latch 7 and the locking hook 8.

[0040] Pushing handle 6 causes the latch 7 to rotate, causing the latch 7 to separate from the hook 8, which releases the limiting fixation between the separation chamber 201 and the cover plate 501. At this time, the cover plate 501 can be removed to facilitate cleaning of the screen 204 inside the separation chamber 201.

[0041] In one embodiment, for the separation chamber 201, a collection hopper 9 is fixedly connected to the bottom of the separation chamber 201, and the collection hopper 9 is located at the bottom of the second partition 505.

[0042] The fine powder passing through the second partition 505 enters the collection hopper 9, and the staff can place a collection device below the collection hopper 9 to collect the fine powder.

[0043] Through the above technical solution, 1. By adjusting the separation component 2 and the opening / closing component 3, the approximate proportion of coarse and fine aggregates in the aggregate is observed before screening. When the proportion of coarse aggregate is relatively high, the opening / closing component 3 is pushed downwards to increase the size of the discharge port above it. When the proportion of fine aggregate is relatively high, the opening / closing component 3 is pushed upwards to increase the size of the discharge port below it. Then, the separation component 2 is activated to screen the aggregate. The screened coarse and fine aggregates are discharged from the opening / closing component 3. The dynamically adjusted opening / closing component 3 can better handle the peak flow rates of coarse and fine aggregates, avoiding blockages. 2. Through the connection between the rotating plate 301 and the limiting rod 401, the limiting rod 401 is slidably connected inside the rotating plate 301. Pushing the limiting rod 401 causes the bolt 402 to move and separate from the limiting hole 304 on the outer surface of the fixed box 303, releasing the limiting fixation between the rotating plate 301 and the fixed box 303. At this time, the rotating plate 301 can be pushed to rotate to adjust the opening size. After the adjustment is completed, the limiting rod 401 is inserted back into the limiting hole 304 in the appropriate position, and the rotating plate 301 is limited and fixed by the nut 404 and the bolt 402, which can prevent the rotating plate 301 from rotating unnecessarily during the vibrating screening process.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the 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 the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screening device for recycled aggregates in construction, comprising a support frame (1), characterized in that, The top of the support (1) is provided with a separation component (2), the outer surface of the separation component (2) is provided with an opening and closing component (3), the inside of the opening and closing component (3) is provided with a limiting component (4), the outer surface of the separation component (2) is provided with an air screen component (5), the separation component (2) is used to separate aggregates of different sizes, the opening and closing component (3) is used to change the size of the feed port, the limiting component (4) is used to limit and fix the opening and closing component (3), and the air screen component (5) is used to blow out micro powder; The opening and closing assembly (3) includes a rotating plate (301), and a pin (302) is fixedly connected to the outer surface of the rotating plate (301). The rotating plate (301) is rotatably connected to the separation chamber (201) through the pin (302). A fixed box (303) is fixedly connected to the outer surface of the separation chamber (201). Limiting holes (304) are opened on the outer surface of the fixed box (303). There are multiple sets of limiting holes (304).

2. The building recycled aggregate screening device according to claim 1, characterized in that, The separation component (2) includes a separation chamber (201), a first spring (202) is fixedly connected to the outer surface of the separation chamber (201), the first spring (202) is fixedly connected to the top of the support (1), a vibration motor (203) is fixedly installed at the bottom of the separation chamber (201), and a screen (204) is fixedly installed inside the separation chamber (201).

3. The building recycled aggregate screening device according to claim 2, characterized in that, The limiting component (4) includes a limiting rod (401), one end of which is fixedly connected to a bolt (402), and the other end of which is fixedly connected to a limiting plate (403). The limiting rod (401) is inserted into a limiting hole (304). A nut (404) is threaded onto the outer surface of the bolt (402). A second spring (405) is fixedly connected to the outer surface of the limiting plate (403). A push rod (406) is fixedly connected to the outer surface of the limiting rod (401). The limiting rod (401) and the limiting plate (403) are both slidably connected inside the rotating plate (301). The end of the second spring (405) is fixedly connected inside the rotating plate (301).

4. The building recycled aggregate screening device according to claim 3, characterized in that, The air screen assembly (5) includes a cover plate (501), which is fixedly installed on the top of the separation chamber (201). A mounting base (502) is fixedly connected to the top of the cover plate (501). A first partition (503) and a fan (504) are fixedly connected inside the mounting base (502). A second partition (505) is fixedly connected to the outer surface of the separation chamber (201). The second partition (505) is located at the bottom of the first partition (503).

5. A screening device for recycled aggregates in construction according to claim 4, characterized in that, The outer surface of the separation chamber (201) is rotatably connected to a handle (6), the outer surface of the handle (6) is rotatably connected to a buckle (7), and the outer surface of the cover plate (501) is fixedly connected to a hook (8). The separation chamber (201) is fixed to the cover plate (501) by the buckle (7) and the hook (8).

6. A screening device for recycled aggregates in construction according to claim 5, characterized in that, The bottom of the separation chamber (201) is fixedly connected to a collection hopper (9), which is located at the bottom of the second partition (505).

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