Waste separation device for concrete production
The centrifugal separation of the rotating disc and the air pump extracts dust by driving the motor, the problem of sand and dust on the stone in the existing device being unable to be screened, and efficient waste separation and environmental protection are achieved.
Patent Information
- Application Number
- CN202422247226.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-13
AI Technical Summary
During the screening process of existing concrete waste separation devices, the gravel and dust attached to the stone cannot be completely screened, resulting in incomplete separation.
The rotary disc is used to drive the rotary disc for centrifugation, combined with the air pump and the dust filter bag system, the stone collides with the reinforcement plate and removes the gravel powder through centrifugal force, and the dust is extracted by the air pump for filtering and collection.
It improves the separation effect and efficiency of waste, avoids dust pollution, and ensures the quality of environmental protection and resource recycling.
Smart Images

Figure CN223234388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete waste separation, in particular to a waste separation device for concrete production. Background Art
[0002] The separation and treatment of concrete waste is an important environmental issue in the construction industry; traditional treatment methods often have problems such as high cost, low efficiency, and environmental pollution; in order to solve these problems, sand and gravel separators are widely used in the treatment of concrete waste; the working principle of the sand and gravel separator is mainly to separate the sand and gravel in the concrete waste through mechanical vibration and screen mesh, so as to realize resource recycling; this treatment method not only improves the treatment efficiency, but also reduces the cost of re-treatment, while reducing the damage to the natural environment, and has important environmental protection significance.
[0003] China Authorization Publication No. CN220678502U discloses a novel waste concrete separation device for concrete production, comprising: a device body, a first mixing drum and a second mixing drum being rotatably connected to the interior of the device body, a first feed hopper and a second feed hopper being welded to the device body, and one end of the first feed hopper being rotatably mounted inside the first mixing drum. The utility model drives the first and second mixing drums to rotate via first and second motors. As the first mixing drum rotates, it is screened through a first sieve. Waste falling from the first sieve passes through a guide plate, through a second feed hopper, into the second mixing drum, is screened through the second sieve, and then falls downward to the bottom of the device body. Waste in the first and second mixing drums is discharged from a discharge port on the right side when the drums are reversed, thereby facilitating the separation of concrete waste and improving separation efficiency and quality.
[0004] Existing waste concrete separation devices screen the waste through a screen or sprinkle water on the waste during screening, resulting in the gravel and dust attached to some stones not being screened out, causing incomplete screening of the waste concrete. To this end, we propose a waste separation device for concrete production. Utility Model Content
[0005] The purpose of the present utility model is to provide a waste separation device for concrete production, so as to solve the problem proposed in the above background technology that the existing concrete waste separation device screens the waste through a screen during use or sprinkles water on the waste during the screening process, resulting in that the gravel and dust attached to some stones cannot be screened off, resulting in incomplete screening of the concrete waste.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste separation device for concrete production, comprising a separation box, a motor is installed above the separation box, a rotating disk is installed at the output end of the motor, a centrifugal groove is provided inside the rotating disk, a feed hopper is provided on the right side of the motor, an exhaust box is installed on the right side of the separation box, a box door is hinged at the front end of the exhaust box, an air pump is installed above the exhaust box, an exhaust pipe is installed inside the exhaust box, a dust filter bag is installed on the right side of the exhaust pipe, and a reinforcing plate is installed above the inner wall of the separation box.
[0007] Preferably, the rotating disk is rotated inside the separation box by a motor, and the centrifugal groove is a frustum-shaped structure.
[0008] Preferably, the air extraction pipe passes through the inner wall of the separation box, and the dust filter bag is connected to the separation box through the air extraction pipe.
[0009] Preferably, the input end of the air pump is connected to the air extraction box.
[0010] Preferably, the exhaust pipe is further provided with:
[0011] A through hole is provided inside the exhaust pipe, a return spring is installed inside the through hole, a baffle is movably installed on the right side of the through hole, and the baffle is elastically connected to the through hole through the return spring.
[0012] Preferably, the separation box is further provided with:
[0013] A screen is installed inside the separation box, a stone discharge guide plate is installed on the left side of the separation box, a discharge port is opened below the separation box, a water tank is installed below the separation box, and a filter transmission belt is installed inside the water tank.
[0014] Compared with the prior art, the utility model provides a waste separation device for concrete production, which has the following beneficial effects:.
[0015] 1. The utility model uses a motor to drive the rotating disk to rotate at high speed, thereby throwing out the concrete waste inside the centrifugal tank. The thrown stones collide with the reinforcing plate, and then shake off the gravel powder attached to the stones, thereby improving the separation effect and efficiency of the waste;
[0016] 2. The utility model uses an air pump to draw the gas inside the separation box into the inside of the exhaust box and then discharge it, thereby allowing the dust inside the separation box to enter the inside of the dust filter bag and be collected for use, thereby preventing the dust from polluting the environment or attaching to stones or gravel again. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the air extraction pipe of the utility model;
[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotating disk of the utility model.
[0020] In the figure: 1. Separation box; 2. Rotating disk; 3. Reinforcement plate; 4. Motor; 5. Feed hopper; 6. Air pump; 7. Vacuum box; 8. Box door; 9. Dust filter bag; 10. Vacuum pipe; 11. Water tank; 12. Filter transmission belt; 13. Discharge port; 14. Stone discharge guide plate; 15. Screen; 16. Return spring; 17. Through hole; 18. Baffle; 19. Centrifugal trough. DETAILED DESCRIPTION
[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figure 1 and Figure 3, a waste separation device for concrete production includes a separation box 1, a motor 4 is installed above the separation box 1, and a rotating disk 2 is installed at the output end of the motor 4; the rotating disk 2 is rotated inside the separation box 1 by the motor 4, and a centrifugal groove 19 is opened inside the rotating disk 2; the centrifugal groove 19 is in a truncated cone structure; the motor 4 drives the rotating disk 2 to rotate at a high speed, thereby throwing out the concrete waste inside the centrifugal groove 19, and the thrown-out stones collide with the reinforcing plate 3, thereby shaking off the gravel powder attached to the stones, thereby improving the separation effect and separation efficiency of the waste materials, a feed hopper 5 is provided on the right side of the motor 4, an air extraction box 7 is installed on the right side of the separation box 1, the front end of the air extraction box 7 is hinged with a box door 8, and an air pump 6 is installed above the air extraction box 7; the input end of the air pump 6 is connected to the air extraction box 7 To achieve connectivity, an exhaust pipe 10 is installed inside the vacuum box 7, and a dust filter bag 9 is installed on the right side of the exhaust pipe 10; the exhaust pipe 10 runs through the inner wall of the separation box 1, and the dust filter bag 9 is connected with the separation box 1 through the exhaust pipe 10; the gas inside the separation box 1 is pumped into the interior of the exhaust box 7 by the air pump 6 and then discharged, so that the dust inside the separation box 1 enters the interior of the dust filter bag 9 and is collected and used, avoiding dust pollution of the environment or re-attachment to the stone or gravel, a reinforcing plate 3 is installed above the inner wall of the separation box 1; a screen 15 is installed inside the separation box 1, a stone discharge guide plate 14 is installed on the left side of the separation box 1, a discharge port 13 is opened at the bottom of the separation box 1, a water tank 11 is installed at the bottom of the separation box 1, and a filter transmission belt 12 is installed inside the water tank 11.
[0023] See also Figure 2 , including a through hole 17, which is opened inside the exhaust pipe 10, and a return spring 16 is installed inside the through hole 17. A baffle 18 is movably installed on the right side of the through hole 17. The baffle 18 is elastically connected to the through hole 17 through the return spring 16. By setting the return spring 16, the baffle 18 is pulled to cover the through hole 17 when the waste separation device is not working, thereby preventing the dust collected inside the dust filter bag 9 from escaping.
[0024] Working principle: When using the waste separation device for concrete production, first, the motor 4 is powered on to drive the rotating disk 2 to rotate at high speed, and then the concrete waste is poured into the centrifugal tank 19 through the feed hopper 5. Under the action of high-speed centrifugal force, the stones are thrown out and hit on the reinforcing plate 3. The impacted stones vibrate and shake off the gravel and dust attached to the surface. Then the fallen stones roll down along the screen 15 to the stone discharge guide plate 14 for discharge. The gravel passes through the screen 15 and enters the water tank 11 from the discharge port 13 for cleaning. , and then discharged by the filter transmission belt 12. Next, the air pump 6 is powered on to extract the gas inside the vacuum box 7. Negative pressure is formed in the vacuum box 7, so that the gas inside the separation box 1 carries the dust through the vacuum pipe 10 to the inside of the vacuum box 7. In this process, the gas pushes open the baffle 18 and enters the dust filter bag 9 through the through hole 17. The gas passes through the dust filter bag 9 and is discharged, while the dust is filtered and remains in the dust filter bag 9. Finally, the box door 8 is opened to replace the dust filter bag 9. This is the working principle of the waste separation device for concrete production.
[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A waste separation device for concrete production, characterized in that: include A separation box (1) is provided, wherein a motor (4) is installed above the separation box (1), a rotating disk (2) is installed at the output end of the motor (4), a centrifugal groove (19) is provided inside the rotating disk (2), a feed hopper (5) is provided on the right side of the motor (4), an air extraction box (7) is installed on the right side of the separation box (1), a box door (8) is hinged at the front end of the air extraction box (7), an air pump (6) is installed above the air extraction box (7), an air extraction pipe (10) is installed inside the air extraction box (7), a dust filter bag (9) is installed on the right side of the air extraction pipe (10), and a reinforcing plate (3) is installed above the inner wall of the separation box (1).
2. A concrete production waste separation device according to claim 1, characterized in that: The rotating disk (2) is rotated inside the separation box (1) by a motor (4), and the centrifugal tank (19) is a truncated cone structure.
3. The concrete production waste separation device according to claim 1, characterized in that: The air extraction pipe (10) passes through the inner wall of the separation box (1), and the dust filter bag (9) is connected to the separation box (1) through the air extraction pipe (10).
4. The concrete production waste separation device according to claim 1, characterized in that: The input end of the air pump (6) is communicated with the air extraction box (7).
5. The concrete production waste separation device according to claim 1, characterized in that: The exhaust pipe (10) is further provided with: A through hole (17) is provided inside the exhaust pipe (10), a return spring (16) is installed inside the through hole (17), a baffle (18) is movably installed on the right side of the through hole (17), and the baffle (18) is elastically connected to the through hole (17) via the return spring (16).
6. The concrete production waste separation device according to claim 1, characterized in that: The separation box (1) is further provided with: A screen (15) is installed inside the separation box (1); a stone discharge guide plate (14) is installed on the left side of the separation box (1); a discharge port (13) is opened below the separation box (1); a water tank (11) is installed below the separation box (1); and a filter transmission belt (12) is installed inside the water tank (11).
Citation Information
Patent Citations
Novel waste concrete separating device for concrete production
CN220678502U