Waste concrete separation equipment for concrete processing
By combining vibration and friction mechanisms with high-pressure spraying, the problem of screens being unable to separate concrete with high moisture content or strong cohesion in existing technologies has been solved, achieving efficient separation of sand and aggregates and reducing screening energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing concrete separation devices struggle to effectively separate aggregates, cement paste, and sand when the moisture content is high or the cohesiveness is strong, leading to increased screening energy consumption.
A vibration mechanism and a friction mechanism are combined with a high-pressure spray mechanism. The adhesive structure is broken by vibration and friction, and the separation efficiency is improved by high-pressure spray.
It effectively disrupts the binding structure, improves the dispersion of sand and aggregates, reduces screening energy consumption, and achieves efficient separation and reuse.
Smart Images
Figure CN224087296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of waste concrete separation, and more specifically, to a waste concrete separation device for concrete processing. Background Technique
[0002] Concrete, abbreviated as "砼", refers to a general term for engineering composite materials in which aggregate is cemented into a whole by cementitious materials. Usually, the term concrete refers to cement concrete, also known as ordinary concrete, which uses cement as the cementitious material, sand and stone as aggregates; it is mixed with water (which may contain additives and admixtures) in a certain proportion and stirred. Concrete processing refers to the process of mixing cement, aggregates (sand, stone), water, and additives and admixtures added as needed in a certain proportion and stirring to make concrete materials with specific properties.
[0003] When processing concrete, some waste concrete (such as the concrete slurry remaining after cleaning the mixer) will be generated. Therefore, a concrete separation device is needed to separate the sand and aggregates in the concrete, and they can be recycled after separation. Most of the current concrete separation devices use the cooperation of vibration and sieve meshes to separate them. However, the processed concrete will increase the screening resistance due to high water content or strong adhesion, making it difficult for the sieve mesh to easily separate the aggregates, cement slurry, and sand and stone, thus increasing the screening energy consumption. Therefore, how to invent a waste concrete separation device for concrete processing to improve these problems has become an urgent problem for those skilled in the art. Content of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a waste concrete separation device for concrete processing, aiming to improve the problem that the processed concrete will increase the screening resistance due to high water content or strong adhesion, making it difficult for the sieve mesh to easily separate the aggregates, cement slurry, and sand and stone, thus increasing the screening energy consumption.
[0005] The utility model is implemented as follows:
[0006] This utility model provides a waste concrete separation device for concrete processing, including a support frame and a separation box mounted on the support frame. The separation box has a guide plate on its side wall and a discharge pipe that cooperates with the guide plate. The concrete to be separated enters the separation box through the guide plate and the discharge pipe. The separation box has a guide seat, a first screen, and a second screen. A water outlet pipe is connected through the front side wall of the separation box. The device also includes: a vibration mechanism positioned between the first and second screens; a friction mechanism mounted on the guide seat, which is linked to the vibration mechanism and can perform friction treatment on the concrete before vibration separation to reduce the adhesion between aggregates; and a high-pressure spraying mechanism mounted on the inner side wall of the separation box.
[0007] Preferably, the friction mechanism includes friction protrusions evenly distributed on a guide seat, a first rotating shaft above the guide seat, and a friction roller that cooperates with the friction protrusions is sleeved on the outer wall of the first rotating shaft. The first rotating shaft drives the friction roller to rotate, and the friction roller and the friction protrusions cooperate to rub the concrete. One end of the first rotating shaft is connected to a bearing provided on the side wall of the separation box. The side wall of the separation box is provided with a support plate, and a motor is provided on the inner side wall of the support plate. The output end of the motor is connected to the other end of the first rotating shaft.
[0008] Preferably, the vibration mechanism includes a second rotating shaft disposed between the first screen and the second screen. Three sets of cams are sleeved on the outer wall of the second rotating shaft. When the cams rotate, they can indirectly strike the first screen and the second screen. One end of the second rotating shaft is connected to a bearing disposed on the side wall of the separation box. A driven pulley is disposed on the outer side of the separation box. The other end of the second rotating shaft passes through the inner side wall of the separation box and is connected to the driven pulley. A driving pulley is sleeved on the outer wall of the first rotating shaft. Belts are sleeved on the outer walls of the driving pulley and the driven pulley.
[0009] Preferably, the high-pressure spraying mechanism includes a water supply pipe provided on the inner side wall of the separation box, a water inlet pipe provided on the outer side wall of the water supply pipe, one end of the water inlet pipe being connected to an external high-pressure water pump, and multiple sets of spray pipes provided on the outer side wall of the water supply pipe.
[0010] Preferably, the guide seat is arranged in the shape of a right trapezoid, and the friction protrusion is arranged on the inclined surface of the guide seat.
[0011] Preferably, the side wall of the separation box is provided with a sand and gravel discharge pipe and an aggregate discharge pipe, the sand and gravel discharge pipe is matched with the first screen, and the aggregate discharge pipe is matched with the second screen.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model, by setting a vibration mechanism, can indirectly strike the first screen and the second screen. The first screen can screen out sand and gravel, and the second screen can screen out aggregate. Cement slurry will be discharged from the outlet pipe with the water flow, thereby achieving the separation of concrete. By setting a friction mechanism linked to the vibration mechanism, the concrete can be rubbed before screening. The friction treatment can destroy these bonded structures, making it easier for aggregate, sand and gravel and cement slurry to loosen and separate, thus improving the dispersion effect.
[0014] 2. By setting a guide seat, the concrete entering the separation box will fall onto the guide seat and then be rubbed. After the friction is completed, the concrete can flow to the first screen with the rotation of the friction roller, which can prevent the concrete from sticking to the friction protrusions and the friction roller, thus improving the friction effect.
[0015] 3. By setting up a high-pressure spraying mechanism, this utility model can continuously spray high-pressure concrete during the process of friction and vibration screening, which can better separate sand and gravel and aggregates and further improve the dispersion effect. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the vibration mechanism and friction mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the friction roller and friction protrusion structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the high-pressure spraying mechanism of this utility model.
[0022] In the diagram: 1. Support frame; 2. Separation box; 3. High-pressure spraying mechanism; 300. Water supply pipe; 301. Water inlet pipe; 302. Spray pipe; 4. Friction mechanism; 400. Friction roller; 401. First rotating shaft; 402. Motor; 403. Support plate; 404. Friction protrusion; 5. Feed pipe; 6. Guide plate; 7. First screen; 8. Second screen; 9. Vibration mechanism; 900. Cam; 901. Second rotating shaft; 902. Driven pulley; 903. Belt; 904. Driven pulley; 10. Guide seat. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example, refer to Figures 1-5 A waste concrete separation device for concrete processing includes a support frame 1 and a separation box 2 mounted on the support frame 1. The separation box 2 has a guide plate 6 on its side wall and a discharge pipe 5 that cooperates with the guide plate 6 through its side wall. The concrete to be separated enters the separation box 2 through the guide plate 6 and the discharge pipe 5. A guide seat 10 is provided inside the separation box 2. A first screen 7 and a second screen 8 are also provided inside the separation box 2. A water outlet pipe is connected through the front side wall of the separation box 2. A sand and gravel discharge pipe and an aggregate discharge pipe are connected through the side wall of the separation box 2. The sand and gravel discharge pipe connects to the first screen 7. In conjunction with the aggregate discharge pipe, the aggregate discharge pipe is also connected to the second screen 8. Under the vibration, the separated sand and gravel will be discharged from the sand and gravel discharge pipe, and the separated aggregate will be discharged from the aggregate discharge pipe. The system also includes: a vibration mechanism 9: the vibration mechanism 9 is located between the first screen 7 and the second screen 8; a friction mechanism 4: the friction mechanism 4 is located on the guide seat 10 and is linked with the vibration mechanism 9. It can perform friction treatment on the concrete before vibration separation to reduce the adhesion between aggregates; and a high-pressure spraying mechanism 3: the high-pressure spraying mechanism 3 is located on the inner wall of the separation box 2.
[0025] The friction mechanism 4 includes friction protrusions 404 evenly distributed on the guide seat 10. A first rotating shaft 401 is provided above the guide seat 10. A friction roller 400 that cooperates with the friction protrusions 404 is sleeved on the outer wall of the first rotating shaft 401. The first rotating shaft 401 drives the friction roller 400 to rotate. The friction roller 400 and the friction protrusions 404 cooperate to rub the concrete. One end of the first rotating shaft 401 is connected to a bearing provided on the side wall of the separation box 2. A support plate 403 is provided on the side wall of the separation box 2. A motor 402 is provided on the inner side wall of the support plate 403. The output end of the motor 402 is connected to the other end of the first rotating shaft 401.
[0026] It should be noted that when the concrete enters the separation box 2, it falls onto the guide seat 10. Then, the motor 402 drives the first rotating shaft 401 and the friction roller 400 to rotate. The friction roller 400 and the friction protrusion 404 can rub the concrete. The concrete can be rubbed before screening. The friction treatment can destroy these bonded structures, making the aggregate, sand and cement paste easier to loosen and separate.
[0027] The vibration mechanism 9 includes a second rotating shaft 901 disposed between the first screen 7 and the second screen 8. Three sets of cams 900 are sleeved on the outer wall of the second rotating shaft 901. When the cams 900 rotate, they can indirectly strike the first screen 7 and the second screen 8. One end of the second rotating shaft 901 is connected to a bearing disposed on the side wall of the separation box 2. A driven pulley 902 is disposed on the outer side of the separation box 2. The other end of the second rotating shaft 901 passes through the inner side wall of the separation box 2 and is connected to the driven pulley 902. A driving pulley 904 is sleeved on the outer wall of the first rotating shaft 401. A belt 903 is sleeved on the outer wall of the driving pulley 904 and the driven pulley 902.
[0028] It should be noted that when the concrete is screened after friction, the rotation of cam 900 can indirectly strike the first screen 7 and the second screen 8. The first screen 7 can screen out sand and gravel, and the second screen 8 can screen out aggregate.
[0029] The high-pressure spraying mechanism 3 includes a water supply pipe 300 on the inner wall of the separation box 2, and an inlet pipe 301 on the outer wall of the water supply pipe 300. One end of the inlet pipe 301 is connected to an external high-pressure water pump (the high-pressure water pump is existing technology). The high-pressure water pump can pressurize the external water and deliver it into the water supply pipe 300, and then spray it onto the concrete through the spray pipe 302. The outer wall of the water supply pipe 300 is provided with multiple sets of spray pipes 302. The spray pipes 302 are set downwardly, so that the concrete can be sprayed under high pressure.
[0030] It should be noted that during the friction and vibration screening of concrete, high-pressure spraying of the concrete can be carried out continuously, which can better separate sand and gravel and aggregates, and further improve the dispersion effect.
[0031] The guide seat 10 is arranged in the shape of a right trapezoid, and the friction protrusion 404 is arranged on the inclined surface of the guide seat 10.
[0032] It should be noted that when concrete enters the separation box 2, it falls onto the guide seat 10 and then undergoes friction. After the friction is completed, the concrete can flow onto the first screen 7 as the friction roller 400 rotates, which can prevent the concrete from adhering to the friction protrusions 404 and the friction roller 400, thus improving the friction effect.
[0033] The working principle of this waste concrete separation equipment for concrete processing is as follows: Processed concrete enters the separation box 2 through the guide plate 6 and the discharge pipe 5. The concrete falls onto the guide seat 10. The motor 402 drives the first rotating shaft 401 to rotate, which in turn drives the friction roller 400 to rotate. The friction roller 400, in conjunction with the friction protrusions 404, rubs the concrete. This friction treatment breaks down the bonded structures, making it easier for aggregates, sand, and cement paste to separate. The concrete flows onto the first screen 7 as the friction roller 400 rotates. The first rotating shaft 401... When rotating, it drives the drive pulley 904 to rotate, which, in conjunction with the belt 903, drives the driven pulley 902 to rotate. The driven pulley 902 drives the second shaft 901 to rotate, and the rotation of the second shaft 901 drives the cam 900 to rotate. The protrusion of the cam 900 can indirectly strike the first screen 7 and the second screen 8. The first screen 7 can screen out sand and gravel, and the second screen 8 can screen out aggregate. Cement slurry will be discharged from the water outlet pipe with the water flow, sand and gravel will be discharged from the sand and gravel outlet pipe, and aggregate will be discharged from the aggregate outlet pipe, thereby achieving the separation of concrete and enabling the recycling and reuse of sand, gravel and aggregate.
[0034] Under the action of an external high-pressure water pump, external water can be pressurized and delivered into the water supply pipe 300, and then sprayed onto the concrete being separated by friction and vibration through multiple sets of spray pipes 302, which can improve the separation effect.
[0035] It should be noted that the specific model and specifications of the external high-pressure water pump need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A waste concrete separation device for concrete processing, comprising a support frame (1) and a separation box (2) mounted on the support frame (1), wherein the side wall of the separation box (2) is provided with a guide plate (6), and a discharge pipe (5) cooperating with the guide plate (6) is provided through the side wall of the separation box (2), the concrete to be separated enters the separation box (2) through the guide plate (6) and the discharge pipe (5), a guide seat (10) is provided inside the separation box (2), a first screen (7) and a second screen (8) are provided inside the separation box (2), and a water outlet pipe is provided through the front side wall of the separation box (2), characterized in that, Also includes: Vibration mechanism (9): The vibration mechanism (9) is disposed between the first screen (7) and the second screen (8); Friction mechanism (4): The friction mechanism (4) is set on the guide seat (10). The friction mechanism (4) is linked with the vibration mechanism (9) and can be used to rub the concrete before vibration separation to reduce the adhesion between aggregates. High-pressure spraying mechanism (3): The high-pressure spraying mechanism (3) is installed on the inner wall of the separation box (2).
2. The waste concrete separation equipment for concrete processing according to claim 1, characterized in that, The friction mechanism (4) includes friction protrusions (404) evenly distributed on the guide seat (10). A first rotating shaft (401) is provided above the guide seat (10). A friction roller (400) that cooperates with the friction protrusions (404) is sleeved on the outer wall of the first rotating shaft (401). The first rotating shaft (401) drives the friction roller (400) to rotate. The friction roller (400) and the friction protrusions (404) cooperate to rub the concrete. One end of the first rotating shaft (401) is connected to a bearing provided on the side wall of the separation box (2). A support plate (403) is provided on the side wall of the separation box (2). A motor (402) is provided on the inner side wall of the support plate (403). The output end of the motor (402) is connected to the other end of the first rotating shaft (401).
3. The waste concrete separation equipment for concrete processing according to claim 2, characterized in that, The vibration mechanism (9) includes a second rotating shaft (901) provided between the first screen (7) and the second screen (8). Three sets of cams (900) are sleeved on the outer wall of the second rotating shaft (901). When the cams (900) rotate, they can indirectly strike the first screen (7) and the second screen (8). One end of the second rotating shaft (901) is connected to a bearing provided on the side wall of the separation box (2). A driven pulley (902) is provided on the outside of the separation box (2). The other end of the second rotating shaft (901) passes through the inner side wall of the separation box (2) and is connected to the driven pulley (902). A driving pulley (904) is sleeved on the outer wall of the first rotating shaft (401). A belt (903) is sleeved on the outer wall of the driving pulley (904) and the driven pulley (902).
4. The waste concrete separation equipment for concrete processing according to claim 1, characterized in that, The high-pressure spraying mechanism (3) includes a water supply pipe (300) provided on the inner wall of the separation box (2), an inlet pipe (301) provided on the outer wall of the water supply pipe (300), one end of the inlet pipe (301) being connected to an external high-pressure water pump, and multiple sets of spray pipes (302) provided on the outer wall of the water supply pipe (300).
5. The waste concrete separation equipment for concrete processing according to claim 2, characterized in that, The guide seat (10) is arranged in the shape of a right trapezoid, and the friction protrusion (404) is arranged on the inclined surface of the guide seat (10).
6. The waste concrete separation equipment for concrete processing according to claim 1, characterized in that, The side wall of the separation box (2) is provided with a sand and gravel discharge pipe and an aggregate discharge pipe. The sand and gravel discharge pipe is connected to the first screen (7), and the aggregate discharge pipe is connected to the second screen (8).