CN211896418U - Concrete tank car washes effluent disposal system - Google Patents
Concrete tank car washes effluent disposal system Download PDFInfo
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- CN211896418U CN211896418U CN202020361821.9U CN202020361821U CN211896418U CN 211896418 U CN211896418 U CN 211896418U CN 202020361821 U CN202020361821 U CN 202020361821U CN 211896418 U CN211896418 U CN 211896418U
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Abstract
The utility model provides a concrete tank car washes effluent disposal system, it is including the aggregate piece-rate system who is arranged in the aggregate piece-rate system that is arranged in the inside exhaust waste water of separation follow concrete tank car, aggregate piece-rate system's sewage outlet links to each other with the sewage concentration system that is used for carrying out the concentration to sewage, the mud discharge port of sewage concentration system links to each other with the mechanical dewatering system who is used for carrying out the concentration to mud concentration treatment, the clear water export of sewage concentration system and mechanical dewatering system links to each other with aggregate piece-rate system's elevated pond. The treatment process adopts three-stage treatment modes of aggregate separation, high-efficiency sewage concentration and mechanical dehydration, and has the characteristics of small occupied area, low treatment efficiency, low construction and operation cost and the like.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, especially, relate to concrete tank car washes effluent disposal system.
Background
In the existing building construction engineering, a mixer truck is the main mode for conveying concrete, but the mixer truck needs to be thoroughly cleaned after the concrete is conveyed by considering the coagulation performance of the concrete, so that the continuous use can be ensured.
In the conventional treatment mode, a certain amount of coarse aggregate is placed in a tank body for tank smashing treatment, and then a large amount of clear water is placed for cleaning the tank, so that a large amount of generated wastewater is directly dumped nearby due to the fact that an integral complete sewage treatment system is not provided, and sewage is discharged into a receiving water body to pollute resources such as riverbeds, river downstream agriculture, land and the like greatly.
SUMMERY OF THE UTILITY MODEL
Contain cement, fly ash, additive etc. in washing waste water to the concrete tank wagon, have the concrete characteristic, sludge concentration is high, the speed that hardens is fast, and the concrete tank wagon washes the volume continuity poor in addition, characteristics such as treatment effeciency requirement height, the utility model provides a concrete tank wagon washes effluent disposal system, processing technology adopt "aggregate separation + high-efficient sewage concentration + mechanical dehydration" three-section processing mode, and this technology has characteristics such as area is little, the treatment effeciency is high, construction and running cost are low.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the concrete tank truck washing wastewater treatment system comprises an aggregate separation system for separating aggregate from wastewater discharged from the interior of a concrete tank truck, wherein a sewage outlet of the aggregate separation system is connected with a sewage concentration system for concentrating sewage, a sludge discharge port of the sewage concentration system is connected with a mechanical dehydration system for concentrating sludge, and clear water outlets of the sewage concentration system and the mechanical dehydration system are connected with a high-level water tank of the aggregate separation system.
The aggregate separation system comprises aggregate separation equipment, the aggregate separation equipment is connected with a water collecting tank in a butt joint mode, the water collecting tank is arranged at the bottom of a car washing platform, the car washing platform is used for bearing a concrete tank car to be cleaned, and the concrete tank car is connected with a high-level water tank used for cleaning and washing the concrete tank car; an aggregate outlet of the aggregate separation equipment is connected with the sand storage tank; and the water outlet of the aggregate separation equipment is connected with a sewage concentration system.
And the aggregate with the aggregate particle size of more than or equal to 0.5mm in the aggregate separation equipment enters the sand storage tank.
The sewage concentration system comprises a sewage adjusting tank, a water inlet of the sewage adjusting tank is connected with a water outlet of the aggregate separation equipment, the sewage adjusting tank is connected with a DH high-efficiency sewage purifier through a sewage lifting pump, a clear water outlet of the DH high-efficiency sewage purifier is connected with a clear water tank, and a slurry discharge pipe of the DH high-efficiency sewage purifier is connected with a concentrated sludge tank; and the clean water tank is connected with the high-level water tank of the aggregate separation system through a clean water pump.
And a water inlet pipe of the DH high-efficiency sewage purifier is communicated with a flocculating agent adding device.
The clean water tank is communicated with a drain pipe of the sewage adjusting tank through a communicating pipe, and back washing is realized.
The mechanical dewatering system comprises mechanical dewatering equipment, a feed inlet of the mechanical dewatering equipment is connected with a concentrated sludge pond of the sewage concentration system through a sludge pump, and a clear water outlet of the mechanical dewatering equipment is connected with a clear water pond of the sewage concentration system.
The utility model discloses there is following beneficial effect:
1. the aggregate separation system is mainly used for realizing an aggregate separation process, the whole process link plays a role in pretreatment, aggregate particles with the particle size of more than 0.5mm in the wastewater are recovered by more than 98%, and the separation equipment can realize the independent separation and storage of coarse aggregates and fine aggregates in the flushing wastewater; the bevel water receiving tank can enable sewage after the concrete tank truck is cleaned to directly flow into the aggregate separator through bevel fall.
2. The sewage concentration system is mainly used for realizing a sewage concentration process, and the main treatment process is a process for separating sludge from clear water of pretreated sewage, and the solid suspended matter of the treated clear water is controlled to be less than or equal to 70 mg/L.
3. The mechanical dewatering system is mainly used for realizing a mechanical dewatering process, mud and water in the sludge concentration tank are separated through mechanical dewatering equipment, the water content of the treated sludge is lower than 15%, the treated sludge is stored in a centralized mode, the treated clear water enters the clear water tank, and the solid suspended matters of the clear water are controlled to be less than or equal to 70 mg/L.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the system comprises an aggregate separation system 1, a sewage concentration system 2, a mechanical dehydration system 3, a concrete tank truck 4, a water collecting tank 5, aggregate separation equipment 6, a high-level water tank 7, a sand storage tank 8, a sewage adjusting tank 9, a sewage lifting pump 10, flocculant adding equipment 11, a DH high-efficiency sewage purifier 12, a concentrated sludge tank 13, a clean water pump 14, a clean water tank 15, a sludge pump 16 and mechanical dehydration equipment 17.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1, the concrete tank car washing wastewater treatment system comprises an aggregate separation system 1 for separating aggregates in wastewater discharged from the interior of a concrete tank car, wherein a sewage outlet of the aggregate separation system 1 is connected with a sewage concentration system 2 for concentrating sewage, a sludge discharge port of the sewage concentration system 2 is connected with a mechanical dehydration system 3 for concentrating sludge, and clear water outlets of the sewage concentration system 2 and the mechanical dehydration system 3 are connected with a high-level water tank 7 of the aggregate separation system 1. The waste water treatment system with the structure can be used for washing waste water treatment of a concrete tank car in a construction site, and finally realizes high-efficiency treatment of waste water by combining an aggregate separation process, a high-efficiency sewage concentration process and a mechanical dehydration process, thereby achieving the purpose of environmental protection.
Further, the aggregate separation system 1 comprises aggregate separation equipment 6, the aggregate separation equipment 6 is connected with a water collection tank 5 in a butt joint mode, the water collection tank 5 is arranged at the bottom of a car washing platform, the car washing platform is used for bearing a concrete tank truck 4 to be cleaned, and the concrete tank truck 4 is connected with a high-level water tank 7 used for cleaning and washing the concrete tank truck; an aggregate outlet of the aggregate separation equipment 6 is connected with the sand storage tank 8; and the water outlet of the aggregate separation equipment 6 is connected with the sewage concentration system 2.
Preferably, the aggregate separation system 1 is mainly used for realizing an aggregate separation process, the whole process link plays a role in pretreatment, aggregate particles with the particle size of more than 0.5mm in the wastewater are recycled by more than 98%, and the separation equipment can realize separate separation and storage of coarse aggregates and fine aggregates in the flushing wastewater; the bevel water receiving tank can directly flow the sewage after the concrete tank truck 4 is cleaned into the aggregate separator through bevel fall.
Further, aggregate with the aggregate particle size of more than or equal to 0.5mm in the aggregate separation equipment 6 enters the sand storage tank 8. The coarse aggregate can be recycled by the separation process.
Further, the sewage concentration system 2 comprises a sewage adjusting tank 9, a water inlet of the sewage adjusting tank 9 is connected with a water outlet of the aggregate separation device 6, the sewage adjusting tank 9 is connected with a DH high-efficiency sewage purifier 12 through a sewage lifting pump 10, a clear water outlet of the DH high-efficiency sewage purifier 12 is connected with a clear water tank 15, and a slurry discharge pipe of the DH high-efficiency sewage purifier 12 is connected with a concentrated sludge tank 13; the clean water tank 15 is connected with the high-level water tank 7 of the aggregate separation system 1 through a clean water pump 14. And a water inlet pipe of the DH high-efficiency sewage purifier 12 is communicated with a flocculating agent adding device 11.
Preferably, the sewage concentration system 2 is mainly used for realizing a sewage concentration process, the main treatment process is a process of separating sludge from clear water of pretreated sewage, and the SS of treated clear water solid suspended matters is controlled to be less than or equal to 70 mg/L. In the process, the sewage adjusting tank and the sludge concentration tank are provided with stirrers, so that hardening caused by over-rapid precipitation of sludge is prevented; the DH high-efficiency sewage purifier adds the sewage in the adjusting tank with the flocculating agent and then realizes the high-efficiency concentration treatment of the sludge, the treated clear water enters the clear water tank, the clear water pump is used for pumping the clear water to the high-level water tank for recycling, and the treated slurry enters the concentrated sludge tank.
Further, the clean water tank 15 is communicated with a drain pipe of the sewage adjusting tank 9 through a communicating pipe, and back washing is realized. Thereby effectively preventing the sludge from hardening prematurely.
Further, the mechanical dewatering system 3 comprises a mechanical dewatering device 17, a feed inlet of the mechanical dewatering device 17 is connected with the concentrated sludge tank 13 of the sewage concentration system 2 through a sludge pump 16, and a clear water outlet of the mechanical dewatering device 17 is connected with the clear water tank 15 of the sewage concentration system 2.
Preferably, the mechanical dewatering system 3 is used for mainly realizing a mechanical dewatering process, mud and water in the sludge concentration tank are separated by mechanical dewatering equipment, the water content of the treated sludge is lower than 15%, the treated sludge is centrally stockpiled, the treated clear water enters the clear water tank, and the SS of clear water solid suspended matters is controlled to be less than or equal to 70 mg/L.
Further, the aggregate separator may be any type of separation device, such as a sand separator, a high frequency vibrating screen, or the like.
Furthermore, the adjusting tank and the concentrated sludge tank are provided with stirrers, and the flocculating agent adding equipment can be any adding device.
Further, the mechanical dewatering device may be any type of dewatering device, such as a plate and frame filter press, a box filter press, a ceramic filter press, a belt filter press, and the like.
Furthermore, the sewage adjusting tank and the concentrated sludge tank in the high-efficiency sewage concentration process are in a gyro-cone structure.
The concrete tank car washes effluent disposal system, its operation step is:
1. after entering a car washing platform, a concrete tank car is added with water for washing the car, car washing wastewater is collected through an oblique water receiving groove and enters an aggregate separator, 98% of large-particle aggregates with the particle size of more than 0.5mm in the wastewater are removed through the aggregate separator, the aggregates enter a sand storage groove after being separated, and the wastewater enters a sludge regulating pond through a pipeline or a sewage ditch.
2. The agitator is opened when waste water gets into the equalizing basin, when the equalizing basin deposits water and reachs the high-efficient sewage purification ware of DH 1h handling capacity, opens the sewage elevator pump and takes sewage into high-efficient sewage purification ware, opens the flocculating agent when the waste water elevator pump and throws the feeder apparatus, and the flocculating agent is thrown at DH high-efficient sewage purification ware front end pipeline and is thrown and throw. The wastewater stirrer stored in the regulating reservoir can not be stopped.
3. Waste water gets into DH high-efficient sewage purification ware after fully mixing with the flocculating agent, carries out high-efficient sewage concentration treatment, opens equipment bottom valve half an hour later, and mud passes through the discharge conduit and gets into concentrated sludge impoundment, and clear water passes through equipment top pipeline and gets into the clean water basin, closes the valve when mud concentration obviously reduces, opens again after half an hour, so relapse.
4. And when the slurry enters the concentrated slurry tank, the stirrer is turned on, the slurry is pumped into the mechanical dehydration equipment through the sludge pump, and the dehydrated sludge is conveyed to a designated storage yard for centralized storage.
5. Clear water in the clear water tank is lifted by a clear water pump and pumped to the high-level water tank, and then the tank car is cleaned, so that cyclic utilization is realized.
6. The system is internally provided with a pipeline and equipment for back washing, and after each circulation, a clean water pump is started to wash the sludge pipeline, the DH high-efficiency sewage purifier and the mechanical dewatering equipment, so that the precipitation and hardening of slurry are prevented.
Claims (7)
1. Concrete tank car washes effluent disposal system, its characterized in that: the system comprises an aggregate separation system (1) for separating aggregates in waste water discharged from the interior of a concrete tank truck, wherein a sewage outlet of the aggregate separation system (1) is connected with a sewage concentration system (2) for concentrating sewage, a sludge discharge port of the sewage concentration system (2) is connected with a mechanical dehydration system (3) for concentrating sludge, and clear water outlets of the sewage concentration system (2) and the mechanical dehydration system (3) are connected with a high-level water tank (7) of the aggregate separation system (1).
2. The concrete tank wagon washing wastewater treatment system of claim 1, wherein: the aggregate separation system (1) comprises aggregate separation equipment (6), the aggregate separation equipment (6) is connected with a water collecting tank (5) in a butt joint mode, the water collecting tank (5) is arranged at the bottom of a car washing platform, the car washing platform is used for bearing a concrete tank car (4) to be cleaned, and the concrete tank car (4) is connected with a high-level water pool (7) used for cleaning and washing the concrete tank car; an aggregate outlet of the aggregate separation equipment (6) is connected with the sand storage tank (8); and a water outlet of the aggregate separation equipment (6) is connected with the sewage concentration system (2).
3. The concrete tank car washing wastewater treatment system according to claim 2, wherein: and aggregate with the aggregate particle size of more than or equal to 0.5mm in the aggregate separation equipment (6) enters the sand storage tank (8).
4. The concrete tank wagon washing wastewater treatment system according to claim 1 or 2, wherein: the sewage concentration system (2) comprises a sewage adjusting tank (9), a water inlet of the sewage adjusting tank (9) is connected with a water outlet of the aggregate separation equipment (6), the sewage adjusting tank (9) is connected with a DH high-efficiency sewage purifier (12) through a sewage lifting pump (10), a clear water outlet of the DH high-efficiency sewage purifier (12) is connected with a clear water tank (15), and a slurry discharge pipe of the DH high-efficiency sewage purifier (12) is connected with a concentrated sludge tank (13); the clean water tank (15) is connected with the high-level water tank (7) of the aggregate separation system (1) through a clean water pump (14).
5. The concrete tank car washing wastewater treatment system according to claim 4, wherein: the water inlet pipe of the DH high-efficiency sewage purifier (12) is communicated with a flocculating agent adding device (11).
6. The concrete tank car washing wastewater treatment system according to claim 4, wherein: the clean water tank (15) is communicated with a drain pipe of the sewage adjusting tank (9) through a communicating pipe, and back washing is realized.
7. The concrete tank wagon washing wastewater treatment system of claim 1, wherein: the mechanical dewatering system (3) comprises a mechanical dewatering device (17), a feed inlet of the mechanical dewatering device (17) is connected with a concentrated sludge pool (13) of the sewage concentration system (2) through a sludge pump (16), and a clear water outlet of the mechanical dewatering device (17) is connected with a clear water pool (15) of the sewage concentration system (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361821.9U CN211896418U (en) | 2020-03-20 | 2020-03-20 | Concrete tank car washes effluent disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361821.9U CN211896418U (en) | 2020-03-20 | 2020-03-20 | Concrete tank car washes effluent disposal system |
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| Publication Number | Publication Date |
|---|---|
| CN211896418U true CN211896418U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020361821.9U Active CN211896418U (en) | 2020-03-20 | 2020-03-20 | Concrete tank car washes effluent disposal system |
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|---|---|
| CN (1) | CN211896418U (en) |
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- 2020-03-20 CN CN202020361821.9U patent/CN211896418U/en active Active
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