Wastewater treatment device for concrete mixing plant

Abstract

The utility model discloses a concrete mixing plant wastewater treatment device which comprises a treatment box and a working box, the right end of the front surface of the treatment box is fixedly connected with a water inlet pipe, an inner cavity of the treatment box is fixedly connected with a partition plate, and the left end of the partition plate is fixedly connected with a flow guide inclined pipe; the two ends of the bottom of the working box are fixedly connected with guide cylinders, a supply pipe is fixedly connected between the lower ends of the two guide cylinders, and the bottoms of the guide cylinders are movably connected with spraying pipes through bearings. According to the utility model, the water inlet pipe can be butted with a wastewater pipeline of the concrete mixing plant, so that wastewater can be discharged into the treatment box, and the discharged wastewater can be pre-precipitated through the treatment box, the partition plate and the flow guide inclined pipe; sand grains and part of cement contained in the wastewater are preliminarily removed, and meanwhile, the precipitated wastewater can be discharged to the rear part of the partition plate, so that subsequent flocculation treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for a concrete mixing plant. Background Technology

[0002] Concrete mixing plants generate a large amount of wastewater during the production process. This wastewater mainly comes from processes such as mixer cleaning, vehicle washing, and site washing. The wastewater contains a large amount of suspended solids, such as cement particles and sand. Therefore, concrete mixing plants usually need to treat this type of wastewater to reduce pollution to the environment.

[0003] Currently, in the process of wastewater treatment at concrete mixing plants, flocculants are usually added to the wastewater to enable the suspended solids in the wastewater to quickly flocculate and settle. However, traditional methods of adding flocculants often involve simply pouring the flocculant directly into the wastewater, which prevents the agent from being evenly distributed in the wastewater. This results in some areas of suspended solids not being able to fully mix and come into contact with the flocculant to produce flocculation, thus affecting the overall effect of wastewater treatment. Utility Model Content

[0004] The purpose of this utility model is to provide a wastewater treatment device for concrete mixing plants, which has the advantage of being able to uniformly add flocculants to wastewater, effectively improving the uniformity of flocculant distribution in wastewater, thereby effectively improving the wastewater treatment effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment device for a concrete mixing plant, comprising a treatment tank and a working tank. An inlet pipe is fixedly connected to the right end of the front surface of the treatment tank. A partition is fixedly connected to the inner cavity of the treatment tank. A guide pipe is fixedly connected to the left end of the partition. Guide cylinders are fixedly connected to both ends of the bottom of the working tank. A supply pipe is fixedly connected between the lower ends of the two guide cylinders. A spray pipe is movably connected to the bottom of the guide cylinder via a bearing. A rotating frame is movably connected to the top of the guide cylinder via a bearing. The bottom of the rotating frame is fixedly connected to the top of the spray pipe. A second bevel gear is fixedly installed on the top of the rotating frame. A drive motor is fixedly installed on the upper left side of the inner cavity of the working tank. A rotating rod is fixedly installed at the output end of the drive motor. First bevel gears are fixedly installed at both ends of the rotating rod, and the first bevel gear meshes with the second bevel gear.

[0006] As a preferred embodiment, a first synchronous pulley is fixedly installed on the right side of the rotating rod, and a stirring shaft is movably connected to the inner cavity of the processing box and behind the partition via a bearing. A second synchronous pulley is fixedly installed on the right side of the stirring shaft, and a synchronous belt is drivingly connected between the middle ends of the first synchronous pulley and the middle ends of the second synchronous pulley.

[0007] As a preferred embodiment, a control valve is fixedly installed on the surface of the guide pipe; a filter grid is fixedly installed between the right end of the front surface of the partition and the upper end of the inner cavity of the treatment box; a drain pipe is fixedly connected to the bottom of the treatment box and in front of the partition; a drain valve is fixedly installed on the surface of the drain pipe; a tee pipe is fixedly connected to the bottom of the treatment box and behind the partition; both ends of the tee pipe are fixedly installed with discharge valves; support columns are fixedly connected around the bottom of the outer surface of the treatment box; and a base plate is fixedly connected between the bottoms of two support columns.

[0008] As a preferred embodiment, a fixing frame is fixedly connected between the upper ends of both sides of the outer surface of the processing box and the lower ends of the outer surface of the working box. A stabilizing plate is fixedly connected to the right end of the top of the fixing frame, and the right end of the rotating rod is movably connected to the upper end of the stabilizing plate through a bearing.

[0009] As a preferred embodiment, a maintenance plate is fixedly installed at the middle of the front surface of the work box, and a heat dissipation hole is provided at the left end of the front surface of the work box.

[0010] As a preferred embodiment, a first rubber ring is fixedly installed on the top of the guide tube, and the surface of the first rubber ring contacts the upper end of the rotating frame; a second rubber ring is fixedly installed on the bottom of the guide tube, and the surface of the first rubber ring contacts the upper end of the spray pipe.

[0011] As a preferred embodiment, a flow sensor and a solenoid valve are fixedly installed sequentially from front to back on the upper end of the supply pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the setting of the water inlet pipe, can connect with the wastewater pipeline of the concrete mixing plant, so that the wastewater can be discharged into the treatment tank. Through the setting of the treatment tank, baffle, and guide pipe, the discharged wastewater can be pre-sedied to initially remove sand and some cement contained in the wastewater. At the same time, the settled wastewater can be discharged behind the baffle for subsequent flocculation treatment. Simultaneously, through the setting of the supply pipe, guide cylinder, and spray pipe, the flocculant can be automatically added to the wastewater. With the cooperation of the drive motor, rotating rod, first bevel gear, second bevel gear, rotating frame, and spray pipe, the spray pipe can evenly distribute the flocculant into the wastewater while rotating, thereby effectively improving the uniformity of flocculant addition and ensuring that the wastewater in different areas can effectively contact the flocculant, thus improving the wastewater treatment effect.

[0014] 2. This utility model, through the arrangement of a first synchronous pulley, a synchronous belt, a second synchronous pulley, and a stirring shaft, enables the first synchronous pulley to rotate under the action of the rotating rod. The rotation of the first synchronous pulley, in turn, drives the second synchronous pulley and the stirring shaft to rotate via the synchronous belt. This causes the stirring shaft to drive the blades on its surface to quickly stir the wastewater and flocculant, ensuring thorough mixing between the wastewater and the flocculant and accelerating the flocculation of suspended solids in the wastewater.

[0015] 3. This utility model, through the setting of the control valve, facilitates the personnel to close the interior of the guide pipe. Through the setting of the filter grid plate, it can filter larger particles and gravel in the wastewater transported at the inlet pipe. Through the setting of the sewage pipe and sewage valve, it is convenient for personnel to discharge and utilize the cement sand particles settled inside the treatment tank in front of the partition. Through the setting of the three-way pipe and two sets of discharge valves, it is convenient for personnel to discharge the flocculent and water settled inside the treatment tank behind the partition in sequence. Through the setting of the support column and the bottom plate, the bottom of the treatment tank is supported.

[0016] 4. This utility model achieves the purpose of supporting the working box through the setting of the fixed frame, the purpose of supporting the right end of the rotating rod through the setting of the stabilizing plate, the purpose of facilitating personnel to maintain and repair the internal components of the working box through the setting of the maintenance plate, the purpose of the setting of the first rubber ring and the second rubber ring effectively improves the sealing performance of the contact between the rotating frame and the spray pipe and the guide cylinder through the setting of the flow sensor and the solenoid valve, and the purpose of personnel to control the amount of flocculant flowing through the supply pipe. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a front sectional view of the processing box of this utility model;

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

[0020] Figure 4 This is a front sectional view of the working box of this utility model.

[0021] In the diagram: 1. Treatment box; 2. Inlet pipe; 3. Baffle plate; 4. Support column; 5. Fixing frame; 6. Maintenance plate; 7. Supply pipe; 8. Working box; 9. Rotating rod; 10. Stabilizing plate; 11. First synchronous pulley; 12. Stirring shaft; 13. Synchronous belt; 14. Second synchronous pulley; 15. Guide pipe; 16. Sewage pipe; 17. Filter grid plate; 18. T-shaped pipe; 19. Drive motor; 20. First bevel gear; 21. Second bevel gear; 22. Rotating frame; 23. Guide cylinder; 24. Spray pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1:

[0025] Please see Figures 1-4 As shown, this utility model provides a wastewater treatment device for a concrete mixing plant, including a treatment box 1 and a working box 8. A water inlet pipe 2 is fixedly connected to the right end of the front surface of the treatment box 1. A partition 3 is fixedly connected to the inner cavity of the treatment box 1. A guide pipe 15 is fixedly connected to the left end of the partition 3. Guide cylinders 23 are fixedly connected to both ends of the bottom of the working box 8. A supply pipe 7 is fixedly connected between the lower ends of the two guide cylinders 23. A spray pipe 24 is movably connected to the bottom of the guide cylinder 23 through a bearing. A rotating frame 22 is movably connected to the top of the guide cylinder 23 through a bearing. The bottom of the rotating frame 22 is fixedly connected to the top of the spray pipe 24. A second bevel gear 21 is fixedly installed on the top of the rotating frame 22. A drive motor 19 is fixedly installed on the upper end of the left side of the inner cavity of the working box 8. A rotating rod 9 is fixedly installed at the output end of the drive motor 19. A first bevel gear 20 is fixedly installed at both ends of the rotating rod 9. The first bevel gear 20 meshes with the second bevel gear 21.

[0026] In this technical solution, the inlet pipe 2 connects to the wastewater pipeline of the concrete mixing plant, allowing wastewater to be discharged into the treatment tank 1. The treatment tank 1, partition 3, and guide pipe 15 allow for pre-sedimentation of the discharged wastewater, initially removing sand and some cement particles. The settled wastewater is then discharged behind the partition 3 for subsequent flocculation treatment. Simultaneously, the supply pipe 7, guide cylinder 23, and spray pipe 24 enable automatic addition of flocculant to the wastewater. The coordinated action of the drive motor 19, rotating rod 9, first bevel gear 20, second bevel gear 21, rotating frame 22, and spray pipe 24 ensures that the spray pipe 24 distributes the flocculant evenly into the wastewater during rotation, effectively improving the uniformity of flocculant addition and ensuring effective contact between wastewater in different areas and the flocculant, thus enhancing the wastewater treatment effect.

[0027] Example 2:

[0028] Based on Embodiment 1, this utility model is as follows: Figure 1 As shown, a first synchronous wheel 11 is fixedly installed on the right side of the rotating rod 9. A stirring shaft 12 is movably connected to the inner cavity of the processing box 1 and behind the partition 3 via a bearing. A second synchronous wheel 14 is fixedly installed on the right side of the stirring shaft 12. A synchronous belt 13 is connected between the middle end of the first synchronous wheel 11 and the middle end of the second synchronous wheel 14.

[0029] In this technical solution, the arrangement of the first synchronous wheel 11, the synchronous belt 13, the second synchronous wheel 14, and the stirring shaft 12 enables the first synchronous wheel 11 to rotate under the action of the rotating rod 9. The rotation of the first synchronous wheel 11 can drive the second synchronous wheel 14 and the stirring shaft 12 to rotate through the synchronous belt 13. As a result, the stirring shaft 12 can drive the blades on its surface to quickly stir the wastewater and flocculant, so that the wastewater and flocculant can be fully mixed to accelerate the flocculation effect of suspended solids in the wastewater.

[0030] It should be noted that during use, personnel can install protective covers around the first synchronous pulley 11, the synchronous belt 13, and the second synchronous pulley 14 to protect the area around them.

[0031] Example 3:

[0032] Based on Embodiment 1, this utility model is as follows: Figures 1-3As shown, a control valve is fixedly installed on the surface of the guide pipe 15. A filter grid plate 17 is fixedly installed between the right end of the front surface of the partition 3 and the upper end of the inner cavity of the treatment box 1. A drain pipe 16 is fixedly connected to the bottom of the treatment box 1 and in front of the partition 3. A drain valve is fixedly installed on the surface of the drain pipe 16. A three-way pipe 18 is fixedly connected to the bottom of the treatment box 1 and behind the partition 3. Both ends of the three-way pipe 18 are fixedly installed with discharge valves. Support columns 4 are fixedly connected to the bottom of the outer surface of the treatment box 1. A base plate is fixedly connected between the bottoms of two support columns 4.

[0033] In this technical solution, the control valve allows personnel to easily close the inside of the guide pipe 15. The filter grid plate 17 filters out larger particles and sand in the wastewater transported at the inlet pipe 2. The drain pipe 16 and drain valve allow personnel to discharge and utilize the cement sand particles that have settled inside the treatment tank 1 in front of the partition 3. The three-way pipe 18 and two sets of discharge valves allow personnel to discharge the flocculent and water that have settled inside the treatment tank 1 behind the partition 3 in sequence. The support column 4 and the base plate provide support for the bottom of the treatment tank 1.

[0034] Example 4:

[0035] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 2 and Figure 4 As shown, a fixing frame 5 is fixedly connected between the upper ends of both sides of the outer surface of the treatment box 1 and the lower ends of the outer surface of the working box 8. A stabilizing plate 10 is fixedly connected to the right end of the top of the fixing frame 5. The right end of the rotating rod 9 is movably connected to the upper end of the stabilizing plate 10 through a bearing. A maintenance plate 6 is fixedly installed in the middle of the front surface of the working box 8. A heat dissipation hole is opened at the left end of the front surface of the working box 8. A first rubber ring is fixedly installed on the top of the guide tube 23, and the surface of the first rubber ring contacts the upper end of the rotating frame 22. A second rubber ring is fixedly installed on the bottom of the guide tube 23, and the surface of the first rubber ring contacts the upper end of the spray pipe 24. A flow sensor and a solenoid valve are fixedly installed sequentially from front to back on the upper end of the supply pipe 7.

[0036] In this technical solution, the fixed frame 5 is used to support the working box 8, the stabilizing plate 10 is used to support the right end of the rotating rod 9, the maintenance plate 6 is used to facilitate maintenance of the internal components of the working box 8, the first and second rubber rings are used to effectively improve the sealing between the rotating frame 22 and the spray pipe 24 and the guide tube 23, and the flow sensor and solenoid valve are used to facilitate the control of the amount of flocculant flowing through the supply pipe 7.

[0037] The working principle of this utility model is as follows: The inlet pipe 2 connects to the wastewater pipeline of the concrete mixing plant. During the discharge of wastewater along the inlet pipe 2, it flows into the treatment tank 1 and undergoes pre-sedimentation in front of the baffle 3, initially removing sand and some cement particles. Subsequently, as the water level rises, the pre-sedimented wastewater flows along the guide pipe 15 to the back of the baffle 3 for subsequent flocculation treatment. Simultaneously, the supply pipe 7 connects to the external flocculant output pipeline, allowing the flocculant to be transported through the guide pipe 7 into the guide cylinder 23 while simultaneously being transported through… The wastewater inside the treatment tank 1 and behind the partition plate 3 is sprayed through the through hole at the bottom of the spray pipe 24, thereby achieving the effect of automatically adding flocculant to the wastewater so that the suspended solids in the wastewater can be flocculated. Then, the drive motor 19 is started by the external controller, which drives the rotating rod 9 and the first bevel gear 20 to rotate. The rotation of the first bevel gear 20 drives the second bevel gear 21, the rotating frame 22 and the spray pipe 24 to rotate. Under the action of the rotation of the spray pipe 24, the flocculant can be evenly distributed into the wastewater, thereby effectively improving the uniformity of flocculant addition and ensuring that the wastewater in different areas can effectively contact the flocculant, thus improving the wastewater treatment effect.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A wastewater treatment device for a concrete mixing plant, comprising a treatment tank (1) and a working tank (8), characterized in that: A water inlet pipe (2) is fixedly connected to the right end of the front surface of the treatment box (1). A partition (3) is fixedly connected to the inner cavity of the treatment box (1). A guide pipe (15) is fixedly connected to the left end of the partition (3). Guide cylinders (23) are fixedly connected to both ends of the bottom of the working box (8). A supply pipe (7) is fixedly connected between the lower ends of the two guide cylinders (23). A spray pipe (24) is movably connected to the bottom of the guide cylinder (23) through a bearing. The top of the guide cylinder (23) is movably connected to the top through a bearing. A rotating frame (22) is connected to the top of the spray pipe (24) at its bottom. A second bevel gear (21) is fixedly installed on the top of the rotating frame (22). A drive motor (19) is fixedly installed on the upper left side of the inner cavity of the work box (8). A rotating rod (9) is fixedly installed on the output end of the drive motor (19). A first bevel gear (20) is fixedly installed on both ends of the rotating rod (9). The first bevel gear (20) meshes with the second bevel gear (21).

2. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: A first synchronous pulley (11) is fixedly installed on the right side of the rotating rod (9). A stirring shaft (12) is movably connected to the inner cavity of the processing box (1) and behind the partition plate (3) via a bearing. A second synchronous pulley (14) is fixedly installed on the right side of the stirring shaft (12). A synchronous belt (13) is drivingly connected between the middle end of the first synchronous pulley (11) and the middle end of the second synchronous pulley (14).

3. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: A control valve is fixedly installed on the surface of the guide pipe (15). A filter grid plate (17) is fixedly installed between the right end of the front surface of the partition plate (3) and the upper end of the inner cavity of the treatment box (1). A drain pipe (16) is fixedly connected to the bottom of the treatment box (1) and in front of the partition plate (3). A drain valve is fixedly installed on the surface of the drain pipe (16). A three-way pipe (18) is fixedly connected to the bottom of the treatment box (1) and behind the partition plate (3). Both ends of the three-way pipe (18) are fixedly installed with discharge valves. Support columns (4) are fixedly connected around the bottom of the outer surface of the treatment box (1). A base plate is fixedly connected between the bottoms of the two support columns (4).

4. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: A fixing frame (5) is fixedly connected between the upper ends of both sides of the outer surface of the processing box (1) and the lower ends of the outer surface of the working box (8). A stabilizing plate (10) is fixedly connected to the right end of the top of the fixing frame (5). The right end of the rotating rod (9) is movably connected to the upper end of the stabilizing plate (10) through a bearing.

5. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: A maintenance plate (6) is fixedly installed at the middle of the front surface of the work box (8), and a heat dissipation hole is provided at the left end of the front surface of the work box (8).

6. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: A first rubber ring is fixedly installed on the top of the guide tube (23), and the surface of the first rubber ring is in contact with the upper end of the rotating frame (22). A second rubber ring is fixedly installed on the bottom of the guide tube (23), and the surface of the first rubber ring is in contact with the upper end of the spray pipe (24).

7. The wastewater treatment device for a concrete mixing plant according to claim 1, characterized in that: The upper end of the supply pipe (7) is fixedly equipped with a flow sensor and a solenoid valve from front to back.

Images