A wastewater and sand separation device for concrete mixing plants

Abstract

This utility model discloses a wastewater and gravel separation device for concrete mixing plants, relating to the field of concrete waste recycling technology. The wastewater and gravel separation device for concrete mixing plants includes a separation unit housing and a screen aperture adjustment mechanism. The screen aperture adjustment mechanism includes a first separation cylinder, a second separation cylinder, a sealing piston, a sealing strip, a hydraulic cylinder, and a discharge hopper. The first separation cylinder is rotatably connected inside the separation unit housing, the second separation cylinder is slidably connected inside the first separation cylinder, the sealing piston is slidably connected inside the separation unit housing, the sealing strip is fixedly connected to the outer surface of the sealing piston, and the sealing strip is slidably connected to the separation unit housing. The hydraulic cylinder is fixedly connected inside the separation unit housing. The screen aperture adjustment function allows for precise adjustment based on the particle size distribution characteristics of the wastewater and gravel being processed. By changing the effective flow area of ​​the screen aperture, efficient separation of gravel particles of different sizes can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of concrete waste recycling technology, and in particular to a wastewater and sand-gravel separation device for concrete mixing plants. Background Technology

[0002] Wastewater and sand separation equipment for concrete mixing plants is designed for the efficient treatment of large amounts of wastewater and waste sand generated daily by mixing plants. It can accurately and effectively separate the originally mixed wastewater and sand, making the separated clean sand suitable for direct recycling. The deeply treated clear wastewater can be stably recycled back to various stages of production, significantly reducing resource waste, effectively reducing pollution to the surrounding environment, and truly helping mixing plants achieve sustainable green production. It also greatly improves the overall resource utilization efficiency and better meets the strict requirements of modern environmental protection production.

[0003] In the treatment of wastewater and gravel in concrete mixing plants, traditional separation equipment has significant limitations due to the fixed screen size. It cannot dynamically adapt to the fluctuation of particle size distribution in different batches of sand and gravel. Uneven particle size can easily lead to incomplete separation or screen blockage, resulting in reduced separation efficiency and insufficient resource recovery rate. Therefore, a wastewater and gravel separation equipment for concrete mixing plants is needed. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a wastewater sand and gravel separation device for concrete mixing plants. This device can solve the problems of traditional separation equipment having fixed screen hole sizes, which makes it unable to adapt to the separation needs of sand and gravel of different particle sizes, easily causing incomplete separation or screen hole blockage, low separation efficiency and high maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater and sand-gravel separation device for a concrete mixing plant, comprising a separation device housing and a screen hole adjustment mechanism. The screen hole adjustment mechanism includes a first separation cylinder, a second separation cylinder, a sealing piston, a sealing strip, a hydraulic cylinder, and a discharge hopper. The first separation cylinder is rotatably connected to the top of the separation device housing, and its lower part is located inside the separation device housing. The second separation cylinder is slidably connected to the inside of the first separation cylinder. The sealing piston is slidably connected to the inner wall of the separation device housing and is located below the first separation cylinder. The sealing strip is fixedly connected to the outer surface of the sealing piston, and its outer surface is slidably connected to the inner wall of the separation device housing. The hydraulic cylinder is fixedly connected to the bottom of the inner wall of the separation device housing. There are multiple hydraulic cylinders symmetrically arranged at the bottom of the inner wall of the separation device housing. The output end of each hydraulic cylinder is fixedly connected to the bottom of the sealing piston. The second separation cylinder is rotatably connected to the sealing piston. The discharge hopper is fixedly connected to the bottom of the second separation cylinder and is slidably connected to the separation device housing.

[0006] Preferably, a motor bracket is fixedly connected to the top of the housing of the separation device, a motor is fixedly connected to the top of the motor bracket, and a gear is fixedly connected to the output end of the motor, with the gear rotatably connected to the top of the housing of the separation device.

[0007] Preferably, the surface of the first separating cylinder is provided with a feed inlet, and the surface of the first separating cylinder is provided with a toothed groove, which meshes with a gear.

[0008] Preferably, a limiting plate is fixedly connected to the surface of the first separating cylinder, and a guide plate is fixedly connected to the surface of the second separating cylinder, with the guide plate and the limiting plate being slidably connected.

[0009] Preferably, the surface of the first separating cylinder is provided with a first sieve hole, and the surface of the second separating cylinder is provided with a second sieve hole, and the first sieve hole and the second sieve hole have the same shape.

[0010] Preferably, a controller is fixedly connected to the surface of the housing of the separation device, and a device base is fixedly connected to the bottom of the housing of the separation device.

[0011] Preferably, the device base is a movable base, and the bottom of the movable base is provided with rollers, and the support plate on each roller is fixedly connected to the bottom of the movable base.

[0012] Preferably, the device base is a shock-absorbing base, a buffer plate is slidably connected to the surface of the shock-absorbing base, and multiple spring dampers are fixedly connected at equal intervals to the opposite surfaces of the shock-absorbing base and the buffer plate.

[0013] Preferably, the number of device bases is multiple and they are symmetrically fixedly connected to the bottom of the separation device housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This wastewater sand and gravel separation equipment for concrete mixing plants can be precisely adjusted according to the particle size distribution characteristics of the sand and gravel in the actual wastewater being processed through the screen hole adjustment function. By changing the effective flow area of ​​the screen holes, it ensures that sand and gravel particles of different sizes can be separated efficiently, effectively avoiding the problem of incomplete separation caused by particle size differences, reducing the occurrence of screen hole clogging, reducing the frequency of equipment maintenance and downtime, improving the continuous operation capability of the equipment, and at the same time ensuring that the separated sand and gravel can meet the particle size requirements of different recycling scenarios, improving the comprehensive utilization value of resources, enhancing the equipment's adaptability to diversified processing needs, and ensuring the stability and reliability of separation operations. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the separation cylinder of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 4 This is a bottom view of the present invention;

[0021] Figure 5 This is a schematic diagram of the movable base of this utility model;

[0022] Figure 6 This is a schematic diagram of the shock-absorbing base of this utility model.

[0023] Reference numerals in the attached drawings: 1. Housing of the separation device; 2. Device base; 3. Controller; 4. First separation cylinder; 5. Feed inlet; 6. Gear groove; 7. Motor bracket; 8. Motor; 9. Gear; 10. Limiting plate; 11. Second separation cylinder; 12. Guide plate; 13. Sealing piston; 14. Sealing strip; 15. Hydraulic cylinder; 16. Discharge hopper; 17. First screen hole; 18. Second screen hole; 19. Moving base; 20. Roller; 21. Shock-absorbing base; 22. Buffer plate; 23. Spring damper. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0026] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Please see Figure 1-6 This utility model provides a technical solution: a wastewater and sand-gravel separation device for a concrete mixing plant, wherein:

[0029] The outer shell 1 of the separation device serves as the main frame of the equipment. The top of the machine is fixedly connected to the motor bracket 7. The motor bracket 7 is made of high-strength metal material to stably support the motor 8. The output end of the motor 8 is connected to the gear 9. The gear 9 is rotatably connected to the top of the outer shell 1 of the separation device, providing a power basis for the rotation of the first separation cylinder 4 and ensuring the stability of power transmission.

[0030] The first separating cylinder 4 is rotatably connected inside the outer shell 1 of the separating device. The toothed groove 6 on its surface is meshed with the gear 9. After the motor 8 starts, it drives the first separating cylinder 4 to rotate through the meshing of the gear 9 and the toothed groove 6. The feed inlet 5 on the surface is used for wastewater and sand to enter. During the rotation, it cooperates with the screen holes to achieve the initial separation action.

[0031] The second separating cylinder 11 is slidably connected inside the first separating cylinder 4. The limiting plate 10 on the surface of the first separating cylinder 4 is slidably connected to the guide plate 12 on the surface of the second separating cylinder 11. The limiting plate 10 and the guide plate 12 are made of wear-resistant alloy material to ensure accurate guidance when the second separating cylinder 11 slides and avoid deviation that affects the matching accuracy of the screen holes.

[0032] The first separation cylinder 4 has a first screen hole 17 on its surface, and the second separation cylinder 11 has a second screen hole 18 on its surface. The two are exactly the same in shape. The overlap of the screen holes is changed by sliding the second separation cylinder 11 to achieve adjustment, so that the equipment can adapt to sand and gravel of different particle sizes and improve separation adaptability and efficiency.

[0033] The sealing piston 13 is slidably connected inside the housing 1 of the separation device, and the sealing strip 14 fixedly connected to its outer surface is made of oil-resistant rubber. The slidable connection between the sealing strip 14 and the housing 1 of the separation device ensures sealing performance, prevents wastewater leakage, and ensures a clean operating environment for the equipment.

[0034] Hydraulic cylinders 15 are fixedly connected inside the housing 1 of the separation device and are arranged symmetrically in multiple ways. The output end of each hydraulic cylinder 15 is fixedly connected to the bottom of the sealing piston 13. The hydraulic cylinder 15 provides a stable driving force to push the sealing piston 13 to slide, thereby driving the second separation cylinder 11 to move and realize the adjustment of the screen hole. The power output is stable and reliable.

[0035] The second separating cylinder 11 is rotatably connected to the sealing piston 13. When the sealing piston 13 slides, it does not affect the second separating cylinder 11 from rotating synchronously with the first separating cylinder 4, ensuring that the screen hole adjustment and the rotational separation action do not interfere with each other during the separation process, and ensuring the continuous operation of the separation.

[0036] The discharge hopper 16 is fixedly connected to the bottom of the second separation cylinder 11 and slidably connected to the outer shell 1 of the separation device. The separated sand and gravel are discharged in a concentrated manner through the discharge hopper 16. The discharge hopper 16 remains stable when it moves with the second separation cylinder 11, ensuring that the sand and gravel are discharged smoothly without spilling.

[0037] The controller 3 is fixedly connected to the surface of the outer shell 1 of the separation device. The controller 3 can precisely control the start and stop of the motor 8, the speed and the extension and retraction of the hydraulic cylinder 15, so as to realize the automated operation of the equipment and the precise adjustment of the screen hole, reduce the intensity of manual operation and improve the operating efficiency of the equipment.

[0038] The bottom of the housing 1 of the separation device is fixedly connected to the base 2 of the device, and multiple bases are symmetrically arranged. The base 2 provides stable support for the whole equipment, distributes the weight of the equipment, reduces vibration and displacement during operation, and ensures the installation stability and operation safety of the equipment.

[0039] Working principle: When the wastewater and sand separation equipment for concrete mixing plants is working, the controller 3 starts the motor 8. The motor 8 is fixed to the top of the outer shell 1 of the separation device through the motor bracket 7. Its output end drives the gear 9 to rotate. The gear 9 meshes with the tooth groove 6 on the surface of the first separation cylinder 4, driving the first separation cylinder 4 to rotate inside the outer shell 1 of the separation device. The wastewater and sand to be treated enter from the feed port 5 of the first separation cylinder 4. During the rotation of the first separation cylinder 4, the first screen hole 17 on its surface cooperates with the second screen hole 18 on the surface of the second separation cylinder 11 to perform preliminary separation. At the same time, the hydraulic cylinder 15 pushes the sealing piston 13 to slide inside the outer shell 1 of the separation device. The sealing strip 14 ensures the sealing performance between the sealing piston 13 and the outer shell 1 of the separation device. The sealing piston 13 drives the second separation cylinder 11 to slide inside the first separation cylinder 4. The guide plate 12 moves along the limit plate 10 to ensure stable sliding. The screen hole adjustment is achieved by adjusting the overlap of the first screen hole 17 and the second screen hole 18. The separated sand and gravel are discharged through the discharge hopper 16, while the wastewater and fine sand remain inside the outer shell 1 of the separation device and are discharged through the drain outlet.

[0040] Example 1:

[0041] When the device base 2 is initially configured as a movable base 19, the rollers 20 at the bottom of the movable base 19 are fixed to the base by a support plate. The rollers 20 are made of high load-bearing and wear-resistant rubber material, which can easily bear the overall weight of the equipment and facilitate movement between different work points in the mixing plant.

[0042] When the equipment needs to be fixed in a certain position for a long time, the mobile base 19 can be replaced with the shock-absorbing base 21, and the original rollers 20 and support plates can be removed so that the shock-absorbing base 21 can be directly connected to the bottom of the housing 1 of the separation device, providing a stable fixed support foundation for the equipment.

[0043] The shock-absorbing base 21 has a sliding connection to the buffer plate 22. The buffer plate 22 is made of high-strength steel plate, which can evenly distribute the pressure generated during the operation of the equipment and avoid excessive local stress that could cause the base to deform.

[0044] Multiple spring dampers 23 are fixedly connected at equal intervals to the opposite surfaces of the shock-absorbing base 21 and the buffer plate 22. The spring dampers 23 are filled with high-elasticity alloy springs, which can effectively absorb the vibration energy during equipment operation and reduce the impact of vibration on the outer shell 1 and internal structure of the separation device.

[0045] Example 2:

[0046] The outer shell 1 of the separation device not only supports the various components, but also prevents wastewater and sand from splashing and protects the surrounding environment. The anti-corrosion coating on its inner wall can extend the service life of the equipment, and the sealing structure on the top can reduce noise leakage.

[0047] The first separating cylinder 4 achieves preliminary separation of wastewater and sand by rotating. The first screen hole 17 on its surface can filter sand and gravel of different particle sizes. The feed inlet 5 facilitates material entry. The toothed groove 6 cooperates with the gear 9 to transmit power. The limiting plate 10 can limit the sliding range of the second separating cylinder 11.

[0048] During the sliding process, the second separating cylinder 11 cooperates with the first separating cylinder 4. The size of the screen holes is changed by the misalignment of the first screen hole 17 and the second screen hole 18. The guide plate 12 ensures smooth sliding. The discharge hopper 16 at the bottom can discharge the separated sand and gravel, while preventing wastewater leakage.

[0049] Motor 8 provides power to the equipment, driving the first separation cylinder 4 to rotate. The characteristics of the servo motor can realize speed adjustment to adapt to different material separation needs. Motor bracket 7 stably supports motor 8 and reduces vibration during operation.

[0050] The hydraulic cylinder 15 pushes the sealing piston 13 up and down to adjust the position of the second separation cylinder 11. Multiple symmetrically arranged hydraulic cylinders 15 ensure uniform force distribution. The sealing piston 13 and the sealing strip 14 work together to prevent wastewater from entering the area of ​​the hydraulic cylinder 15.

[0051] The controller 3 can control the speed of the motor 8 and the extension and retraction of the hydraulic cylinder 15 to achieve automated operation. It can also display the equipment operating parameters for easy monitoring by operators. The device base 2 supports the entire equipment, the movable base 19 facilitates equipment transfer, and the shock-absorbing base 21 reduces the impact of vibration during operation.

[0052] Example 3:

[0053] In the scenario of a small concrete mixing plant, the device base 2 is set as a mobile base 19. The equipment is moved to the vicinity of the wastewater discharge outlet by the rollers 20. The controller 3 is used to start the equipment. The motor 8 drives the first separation cylinder 4 to rotate at a low speed. The hydraulic cylinder 15 adjusts the position of the second separation cylinder 11 so that the screen holes are in a smaller state. Wastewater and sand enter from the feed inlet 5. The separated sand and gravel are collected by the discharge hopper 16. The wastewater flows out through the screen holes for further treatment.

[0054] After the separation process is completed, turn off the motor 8 and hydraulic cylinder 15, move the equipment to the storage area using the mobile base 19, clean the residual materials inside the first separation cylinder 4 and the second separation cylinder 11, check whether each component is normal, and prepare for the next use.

[0055] In the scenario of a large concrete mixing plant, a shock-absorbing base 21 is used, and the vibration during equipment operation is reduced by a buffer plate 22 and a spring damper 23. The equipment is fixed in a designated position and connected to a wastewater conveying pipeline. The controller 3 is set to a higher speed, and the hydraulic cylinder 15 adjusts the screen holes to a larger state to continuously process a large amount of wastewater and gravel.

[0056] Regularly check the equipment operation data through controller 3, adjust the motor speed and screen size according to the separation effect, lubricate the transmission components such as gear 9 and tooth groove 6 when the machine is stopped, and check the sealing performance of sealing strip 14 to ensure long-term stable operation of the equipment.

[0057] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wastewater and sand-gravel separation device for a concrete mixing plant, characterized in that, include: The outer casing of the separation device (1); The sieve aperture adjustment mechanism includes a first separating cylinder (4), a second separating cylinder (11), a sealing piston (13), a sealing strip (14), a hydraulic cylinder (15), and a discharge hopper (16). The first separating cylinder (4) is rotatably connected to the top of the separator housing (1), and the lower part of the first separating cylinder (4) is located inside the separator housing (1). The second separating cylinder (11) is slidably connected to the inside of the first separating cylinder (4). The sealing piston (13) is slidably connected to the inner wall of the separator housing (1), and the sealing piston (13) is located below the first separating cylinder (4). The sealing strip (14) is fixedly connected to the first separating cylinder (4). On the outer surface of the sealing piston (13), the outer surface of the sealing strip (14) is slidably connected to the inner wall of the separator housing (1). The hydraulic cylinder (15) is fixedly connected to the bottom of the inner wall of the separator housing (1). There are multiple hydraulic cylinders (15) symmetrically arranged at the bottom of the inner wall of the separator housing (1). The output end of each hydraulic cylinder (15) is fixedly connected to the bottom of the sealing piston (13). The second separator cylinder (11) is rotatably connected to the sealing piston (13). The discharge hopper (16) is fixedly connected to the bottom of the second separator cylinder (11). The discharge hopper (16) is slidably connected to the separator housing (1).

2. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 1, characterized in that: A motor bracket (7) is fixedly connected to the top of the housing (1) of the separation device, and a motor (8) is fixedly connected to the top of the motor bracket (7). A gear (9) is fixedly connected to the output end of the motor (8), and the gear (9) is rotatably connected to the top of the housing (1) of the separation device.

3. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 1, characterized in that: The surface of the first separating cylinder (4) is provided with a feed inlet (5) and a toothed groove (6) is provided on the surface of the first separating cylinder (4), which meshes with a gear (9).

4. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 1, characterized in that: A limiting plate (10) is fixedly connected to the surface of the first separating cylinder (4), and a guide plate (12) is fixedly connected to the surface of the second separating cylinder (11). The guide plate (12) is slidably connected to the limiting plate (10).

5. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 1, characterized in that: The surface of the first separation cylinder (4) is provided with a first sieve hole (17), and the surface of the second separation cylinder (11) is provided with a second sieve hole (18). The first sieve hole (17) and the second sieve hole (18) are exactly the same in shape.

6. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 1, characterized in that: A controller (3) is fixedly connected to the surface of the housing (1) of the separation device, and a device base (2) is fixedly connected to the bottom of the housing (1).

7. The wastewater and gravel separation equipment for a concrete mixing plant according to claim 6, characterized in that: The device base (2) is a movable base (19), and the bottom of the movable base (19) is provided with rollers (20), and the support plate on each roller (20) is fixedly connected to the bottom of the movable base (19).

8. A wastewater and gravel separation device for a concrete mixing plant according to claim 6, characterized in that: The device base (2) is a shock-absorbing base (21). A buffer plate (22) is slidably connected to the surface of the shock-absorbing base (21). Multiple spring dampers (23) are fixedly connected at equal intervals to the opposite surfaces of the shock-absorbing base (21) and the buffer plate (22).

9. A wastewater and gravel separation device for a concrete mixing plant according to claim 6, characterized in that: The device base (2) is multiple and symmetrically fixed to the bottom of the separation device housing (1).

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