A multi-stage separation and recovery device for concrete truck washing wastewater

Abstract

The application relates to the field of environmental protection technology for building engineering construction, and discloses a multi-stage separation and recovery device for concrete tank truck washing tank wastewater, which comprises a bucket body, a supporting frame is fixedly connected to the outer wall of the bucket body, a protection plate is fixedly connected to the upper surface of the bucket body, a stirring assembly is arranged on the upper surface of the protection plate, a plurality of clamping rings are fixedly connected to the inner wall of the supporting frame, a buckle is clamped to the outer wall of a handle, the outer wall of the buckle is fixedly connected to the outer wall of the bucket body, a circulating assembly is arranged on the outer wall of the bucket body, and a vibrator is arranged on the lower surface of the bucket body. The concrete clumps and the wastewater are sent into the bucket body by the tank truck, the wastewater is discharged into the circulating assembly and then returned into the tank truck for secondary treatment, the gravel, sand and wastewater can be separated and discharged through the bucket body, so that the multi-stage filtration and separation are realized, and the separation quality is improved.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology in construction engineering, specifically to a multi-stage separation and recycling device for wastewater from concrete mixer truck washing. Background Technology

[0002] Concrete mixer truck washing wastewater recycling refers to the process of recycling the highly alkaline, high-suspended-solids wastewater generated after washing concrete mixer trucks through specific collection, separation, treatment, and storage processes, so that the water and solid materials can be reused as production resources. It is applicable to the resource-based treatment and pollution control of concrete mixer truck washing wastewater in building construction projects.

[0003] In related technologies, single-layer screens are usually used when separating and filtering gravel and sand. Due to the difference in particle size between gravel and sand, the gravel and sand are mixed together during the separation process, resulting in low purity of the recovered sand and gravel. This leads to a low recycling rate of the sand and gravel. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-stage separation and recycling device for concrete mixer truck washing wastewater, which solves the problem in related technologies where crushed stone and sand are mixed together during separation and filtration, resulting in low purity of the recovered sand and gravel, which leads to a low subsequent recycling rate of sand and gravel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage separation and recycling device for concrete mixer truck washing wastewater, comprising a hopper, a support frame fixedly connected to the outer wall of the hopper, a protective plate fixedly connected to the upper surface of the hopper, a stirring assembly provided on the upper surface of the protective plate, multiple sets of retaining rings fixedly connected to the inner wall of the support frame, multiple sets of sealing plates rotatably connected to the outer wall of the hopper, a handle fixedly connected to the outer wall of the sealing plate, a buckle engaged on the outer wall of the handle, the outer wall of the buckle fixedly connected to the outer wall of the hopper, a circulation assembly provided on the outer wall of the hopper, and a vibrator provided on the lower surface of the hopper.

[0006] Preferably, the stirring assembly includes a protective shell, the lower surface of which is detachably mounted on the upper surface of the protective plate.

[0007] Preferably, a motor is fixedly connected to the inner wall of the protective shell, and a spiral stirring paddle is fixedly installed at the output end of the motor. The outer wall of the spiral stirring paddle is rotatably connected to the inner wall of the protective plate.

[0008] Preferably, a fixing block is rotatably connected to the bottom outer wall of the spiral stirring paddle, and the outer wall of the fixing block is fixedly connected to the inner wall of the bucket body.

[0009] Preferably, the bottom end of the spiral stirring paddle is fixedly connected to the outer wall near the lower side of the fixed block, and the bucket body is conical near the spiral stirring paddle.

[0010] Preferably, the side wall of the bucket is fixedly connected to multiple sets of first electric valves, and the inner wall of the first electric valve is provided with a first sand discharge pipe, and the first sand discharge pipe is connected to the inner wall of the bucket.

[0011] Preferably, a second electric valve is provided on the lower surface of the bucket body, and a second sand discharge pipe is provided on the inner wall of the second electric valve.

[0012] Preferably, a screen is fixedly connected to the inner wall of the hopper, and a partition plate is fixedly connected to the inner wall of the hopper. The inner wall of the partition plate has multiple sets of drainage holes.

[0013] Preferably, the circulation component includes a connecting pipe, one end of which is fixedly connected to the inner wall of the bucket body, and the other end of which is fixedly connected to a water collection tank, the inner wall of which is fixedly connected to a water quality detection sensor.

[0014] Preferably, a water pump is fixedly connected to the side wall of the water collection tank, a circulation pump is fixedly installed on the outer wall of the water pump, a drain pipe is fixedly installed on the outer wall of the circulation pump, and a water pump is fixedly installed on the lower surface of the water collection tank.

[0015] Working principle: After water is poured into the concrete mixer truck, the truck is started to mix the water flow and discharge it into the bucket. At this time, the concrete mixer truck discharges wastewater, gravel, sand and other impurities into the bucket for separation of gravel from wastewater and sand. Simultaneously, the mixing components can break up concrete lumps. At this time, the vibrator on the lower side of the bucket is activated to vibrate, which can prevent impurities from adhering to the bucket. When concrete lumps accumulate, turning the handle causes the sealing plate to rotate on the inner wall of the bucket, so that the handle is disengaged from the latch, thus facilitating the discharge of impurities. After the sealing plate is opened, the vibrator will vibrate and discharge the impurities. The retaining ring installed on the inner wall of the support frame facilitates the handling of the support frame and the bucket.

[0016] This invention provides a multi-stage separation and recycling device for concrete mixer truck washing wastewater. It has the following beneficial effects:

[0017] 1. This invention delivers concrete lumps and wastewater into the hopper via a tanker truck. The concrete lumps are sheared to a suitable size by the mixing component and then discharged. Sand enters the right side of the protective plate to separate the sand and wastewater. The wastewater enters the circulation component for discharge and returns to the tanker truck for secondary treatment. The hopper can separate gravel, sand, and wastewater and discharge them, thereby achieving multi-stage filtration and separation while improving the separation quality.

[0018] 2. This invention uses a motor to drive the spiral mixing paddle to rotate, which in turn drives the mixing blades to rotate. This allows the spiral mixing paddle to shear concrete lumps while preventing the accumulation of gravel. The second electric valve and the second sand discharge pipe can discharge gravel, while the screen can separate gravel from sand. Sand and wastewater are separated by the isolation plate and drainage holes. The two sets of first electric valves and first sand discharge pipes are used to discharge sand and wastewater respectively, which enables the sand and gravel to be recycled separately, facilitating the secondary use of resources.

[0019] 3. In this invention, wastewater enters the collection tank, where a water quality sensor detects the wastewater quality. The pumping pipe, in conjunction with the circulation pump and the drain pipe, allows substandard wastewater to re-enter the tanker for reuse. When the wastewater meets the standards, the pumping pump will turn on to drain the wastewater. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the protective plate structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the vibrator structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the first sand-draining pipe structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the screen structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the fixing block structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the drainage hole structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the water pump structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the water collection tank structure of the present invention.

[0029] The components are as follows: 1. Bucket body; 2. Support frame; 3. Protective plate; 4. Clamping ring; 5. Sealing plate; 6. Handle; 7. Buckle; 8. First electric valve; 9. First sand discharge pipe; 10. Stirring assembly; 101. Protective shell; 102. Motor; 103. Spiral agitator; 104. Fixing block; 105. Stirring blade; 11. Second electric valve; 12. Second sand discharge pipe; 13. Vibrator; 14. Circulation assembly; 141. Connecting pipe; 142. Water collection tank; 143. Water quality detection sensor; 144. Pumping pipe; 145. Circulation pump; 146. Drainage pipe; 147. Pump; 15. Screen; 16. Isolation plate; 17. Drainage hole. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to the appendix. Figure 1 This invention provides a multi-stage separation and recycling device for concrete mixer truck washing wastewater, including a bucket body 1. A support frame 2 is fixedly connected to the outer wall of the bucket body 1. A protective plate 3 is fixedly connected to the upper surface of the bucket body 1. A stirring assembly 10 is provided on the upper surface of the protective plate 3. Multiple sets of retaining rings 4 are fixedly connected to the inner wall of the support frame 2. Multiple sets of sealing plates 5 are rotatably connected to the outer wall of the bucket body 1. A handle 6 is fixedly connected to the outer wall of the sealing plate 5. A buckle 7 is snapped onto the outer wall of the handle 6. The outer wall of the buckle 7 is fixedly connected to the outer wall of the bucket body 1. A circulation assembly 14 is provided on the outer wall of the bucket body 1. A vibrator 13 is provided on the lower surface of the bucket body 1.

[0032] Specifically, the bucket body 1 and the support frame 2 are welded from high-strength steel. The bucket body 1 is installed on the support frame 2. When the concrete mixer truck needs to be cleaned, water is poured into the concrete mixer truck first, and then the concrete mixer truck is started to mix the water and discharge it into the bucket body 1. The bucket body 1 is divided into three areas. The first area, on the left side of the protective plate 3, is the sand and gravel separation area. At this time, the concrete mixer truck will discharge wastewater, gravel, sand and other impurities into the sand and gravel separation area. This area can separate gravel from wastewater and sand. At the same time, the mixing component 10 can break up concrete lumps and discharge them in appropriate sizes for reuse. The mixing component 10 can also prevent sand from settling.

[0033] At this time, the sand and wastewater will enter the second area on the right side of the protective plate 3. The second area is the sand-water separation area. The crushed concrete blocks in the sand-gravel separation area will also be discharged into the sand-water separation area. At this time, the vibrator 13 on the lower side of the bucket body 1 will be activated to vibrate, which can prevent impurities from adhering to the bucket body 1.

[0034] After sand and water enter the second zone, the sand and gravel will accumulate in the second zone, while the wastewater will be discharged into the interior of the hopper 1 near the circulation component 14. This third zone is the wastewater recycling zone. After the wastewater enters the third zone, the circulation component 14 will extract the wastewater for recycling and testing. When the wastewater does not reach the set threshold, the wastewater will be discharged back into the concrete mixer truck, allowing the wastewater to flow through the three zones inside the hopper 1 for multi-stage filtration. When the wastewater reaches the set threshold, the wastewater will be discharged.

[0035] When concrete lumps accumulate at the bottom of the first drive, rotating the handle 6 causes the sealing plate 5 to rotate on the inner wall of the bucket body 1, disengaging the handle 6 from the latch 7, thus facilitating the discharge of impurities. Moreover, there are three sets of handle 6, sealing plate 5, and latch 7. One set is located at the bottom of the first area, and the other two sets are located in the corresponding first and second areas, respectively, and are installed on the side wall of the bucket body 1. When the sealing plate 5 is opened, the vibrator 13 will vibrate and discharge the impurities. The retaining ring 4 installed on the inner wall of the support frame 2 facilitates the handling of the support frame 2 and the bucket body 1.

[0036] Example 2: Please refer to the appendix. Figure 1 Appendix Figure 2 Appendix Figure 4 and attached Figure 6 The stirring assembly 10 includes a protective shell 101. The lower surface of the protective shell 101 is detachably mounted on the upper surface of the protective plate 3. A motor 102 is fixedly connected to the inner wall of the protective shell 101. A spiral stirring paddle 103 is fixedly installed at the output end of the motor 102. The outer wall of the spiral stirring paddle 103 is rotatably connected to the inner wall of the protective plate 3. A fixing block 104 is rotatably connected to the outer wall of the bottom end of the spiral stirring paddle 103. The outer wall of the fixing block 104 is fixedly connected to the inner wall of the hopper 1. A stirring blade 105 is fixedly connected to the outer wall of the bottom end of the spiral stirring paddle 103 near the lower side of the fixing block 104. The hopper 1 is conical near the spiral stirring paddle 103.

[0037] Specifically, by installing a protective plate 3 on the upper surface of the bucket body 1 and the support frame 2, and simultaneously installing a protective shell 101 on the upper surface of the protective plate 3, while fixing the motor 102 to the inner wall of the protective shell 101, the protective plate 3 and the protective shell 101 can prevent impurities and sewage from contacting the motor 102, enabling the motor 102 to achieve a stable output. When the wastewater from washing the concrete mixer truck enters the first area, because the inner wall of the bucket body 1 is conical, the concrete clumps fall to the bottom of the bucket body 1, and the motor 102 is then started to drive the concrete. The spiral agitator 103 rotates, and the spiral agitator 103 rotates on the inner wall of the protective plate 3 and the fixing block 104. The fixing block 104 is fixed to the inner bottom wall of the bucket body 1, so that the spiral agitator 103 can stably break up concrete lumps. When the spiral agitator 103 rotates, it will drive the agitator blade 105 to rotate synchronously, so that the agitator blade 105 can stably push the concrete lumps to break up the spiral agitator 103. At the same time, it can prevent the concrete lumps from blocking the second electric valve 11 and the second sand pipe 12.

[0038] Example 3: Please refer to the appendix. Figure 2 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 7 The side wall of the bucket body 1 is fixedly connected to multiple sets of first electric valves 8. The inner wall of the first electric valve 8 is provided with a first sand discharge pipe 9, and the first sand discharge pipe 9 is connected to the inner wall of the bucket body 1. The lower surface of the bucket body 1 is provided with a second electric valve 11. The inner wall of the second electric valve 11 is provided with a second sand discharge pipe 12. The inner wall of the bucket body 1 is fixedly connected to a screen 15. The inner wall of the bucket body 1 is fixedly connected to an isolation plate 16. The inner wall of the isolation plate 16 is provided with multiple sets of drainage holes 17.

[0039] Specifically, by installing a second electric valve 11 at the bottom of the hopper 1, which corresponds to the position of the mixing blade 105 and is located at the conical bottom of the hopper 1, concrete aggregate can be stably fed into the second electric valve 11. The rotation of the mixing blade 105 prevents aggregate from accumulating at the second electric valve 11. When the accumulated amount of aggregate reaches a preset value, the second electric valve 11 opens, allowing the aggregate to be discharged through the second sand discharge pipe 12. Sand and wastewater will enter the second area through the screen 15. Since the screen 15 has multiple sets of filter holes, it prevents aggregate from entering the second area through the screen 15. When sand and wastewater enter the second area, due to the first... The second area is inclined towards the drain hole 17, allowing wastewater to be discharged through the drain hole 17, while sand falls onto the inclined inner wall of the hopper 1. The water flow continuously washes the sand against the outer wall of the separator 16. Because a vibrator 13 is installed on the lower surface of the hopper 1, the high-frequency vibration of the screen 15 and the drain hole 17, in conjunction with the vibrator 13, prevents sand and impurities from adhering to the screen 15 and the drain hole 17, ensuring stable multi-stage separation of crushed stone, sand, and wastewater. Furthermore, the high-frequency vibration of the vibrator 13, combined with the conical design of the first area and the inclined design of the second area, ensures stable material conveying and discharge. The second area of ​​the hopper 1 is equipped with a first electric valve 8, which is located near the drain hole 17. When sand comes into contact with the drain hole 17 through the high-frequency vibration of the vibrator 13, the first electric valve 8 opens, allowing the sand to enter the first sand discharge pipe 9 for discharge.

[0040] Please see the appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 8 and attached Figure 9 The circulation component 14 includes a connecting pipe 141, one end of which is fixedly connected to the inner wall of the bucket body 1, and the other end of which is fixedly connected to a water collection tank 142. A water quality detection sensor 143 is fixedly connected to the inner wall of the water collection tank 142, a water pump 144 is fixedly connected to the side wall of the water collection tank 142, a circulation pump 145 is fixedly installed on the outer wall of the water pump 144, a drain pipe 146 is fixedly installed on the outer wall of the circulation pump 145, and a water pump 147 is fixedly installed on the lower surface of the water collection tank 142.

[0041] Specifically, wastewater enters the third area of ​​the hopper 1. At this time, the first electric valve 8 in the third area will extract the impurities deposited at the bottom of the hopper 1 and re-enter the tanker for secondary multi-stage treatment. At the same time, the connecting pipe 141 will draw water from the third area, allowing the water to enter the collection tank 142. Since the inner wall of the collection tank 142 is inclined, and a water quality detection sensor 143 is installed on the inner wall of the collection tank 142 to detect the water quality, when the water quality does not meet the standard, the circulation pump 145 will cooperate with the water suction pipe 144 to pump water, so that the water is discharged back into the tanker for secondary treatment through the drain pipe 146, which can achieve the effect of reducing water resource recycling and waste. When the water quality detection sensor 143 detects that the water quality is qualified, the water pump 147 will draw out the water inside the collection tank 142 for discharge.

[0042] The workflow involves pouring water into a concrete mixer truck, starting the mixer truck to flow water, and discharging wastewater containing gravel, sand, and concrete lumps into the first sand and gravel separation area of ​​the hopper 1. At this time, the motor 102 is started to drive the spiral mixing blade 103 to rotate, which in turn drives the mixing blade 105 to rotate synchronously, breaking up the concrete lumps and preventing sand from settling. The conical inner wall of the first area of ​​the hopper 1 causes the lumps to fall to the bottom, separating the gravel from the wastewater and sand. When the gravel accumulates to a preset value, the second electric valve 11 is opened, and the gravel is discharged through the second sand discharge pipe 12.

[0043] After the sand and wastewater enter the second sand-water separation area of ​​the hopper 1 through the screen 15, the vibrator 13 is started to vibrate to prevent impurities from adhering. The inclined design of the second area allows the wastewater to flow into the third area through the drain hole 17. After the sand accumulates, the first electric valve 8 is opened and the sand is discharged through the first sand discharge pipe 9.

[0044] Wastewater enters the wastewater recycling area in the third zone of the hopper 1. The connecting pipe 141 of the circulation component 14 pumps the wastewater to the collection tank 142. The water quality sensor 143 detects the water quality. If the water quality does not meet the standard, the circulation pump 145 sends the wastewater back to the tanker for secondary treatment through the pumping pipe 144 and the drain pipe 146. If the water quality meets the standard, the pumping pump 147 discharges the wastewater. When concrete lumps accumulate at the bottom of the hopper 1, the handle 6 is turned to disengage the sealing plate 5 from the buckle 7. The vibrator 13 is used to vibrate and discharge impurities from each area. The retaining ring 4 facilitates the transport of the support frame 2 and the hopper 1.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage separation and recycling device for concrete mixer truck washing wastewater, comprising a hopper (1), characterized in that: The outer wall of the bucket (1) is fixedly connected to a support frame (2), the upper surface of the bucket (1) is fixedly connected to a protective plate (3), the upper surface of the protective plate (3) is provided with a stirring assembly (10), the inner wall of the support frame (2) is fixedly connected to multiple sets of retaining rings (4), the outer wall of the bucket (1) is rotatably connected to multiple sets of sealing plates (5), the outer wall of the sealing plate (5) is fixedly connected to a handle (6), the outer wall of the handle (6) is snapped with a buckle (7), the outer wall of the buckle (7) is fixedly connected to the outer wall of the bucket (1), the outer wall of the bucket (1) is provided with a circulation assembly (14), and the lower surface of the bucket (1) is provided with a vibrator (13).

2. The multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 1, characterized in that: The stirring assembly (10) includes a protective shell (101), the lower surface of which is detachably mounted on the upper surface of the protective plate (3).

3. The multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 2, characterized in that: A motor (102) is fixedly connected to the inner wall of the protective shell (101), and a spiral stirring paddle (103) is fixedly installed at the output end of the motor (102). The outer wall of the spiral stirring paddle (103) is rotatably connected to the inner wall of the protective plate (3).

4. The multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 3, characterized in that: The bottom outer wall of the spiral stirring paddle (103) is rotatably connected to a fixing block (104), and the outer wall of the fixing block (104) is fixedly connected to the inner wall of the bucket body (1).

5. A multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 4, characterized in that: The bottom of the spiral stirring paddle (103) is fixedly connected to the outer wall of the fixed block (104) near the bottom, and the bucket body (1) is cone-shaped near the spiral stirring paddle (103).

6. The multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 1, characterized in that: The side wall of the bucket body (1) is fixedly connected to multiple sets of first electric valves (8), and the inner wall of the first electric valve (8) is provided with a first sand discharge pipe (9), and the first sand discharge pipe (9) is connected to the inner wall of the bucket body (1).

7. A multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 6, characterized in that: The lower surface of the bucket body (1) is provided with a second electric valve (11), and the inner wall of the second electric valve (11) is provided with a second sand discharge pipe (12).

8. A multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 1, characterized in that: The inner wall of the hopper (1) is fixedly connected to a screen (15), and the inner wall of the hopper (1) is fixedly connected to an isolation plate (16). The inner wall of the isolation plate (16) has multiple sets of drainage holes (17).

9. A multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 1, characterized in that: The circulation component (14) includes a connecting pipe (141), one end of which is fixedly connected to the inner wall of the bucket body (1), and the other end of which is fixedly connected to a water collection tank (142). A water quality detection sensor (143) is fixedly connected to the inner wall of the water collection tank (142).

10. A multi-stage separation and recycling device for concrete mixer truck washing wastewater according to claim 9, characterized in that: A water pump (144) is fixedly connected to the side wall of the water collection tank (142), a circulation pump (145) is fixedly installed on the outer wall of the water pump (144), a drain pipe (146) is fixedly installed on the outer wall of the circulation pump (145), and a water pump (147) is fixedly installed on the lower surface of the water collection tank (142).

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