CN211688622U - Commercial concrete mixing plant transportation tank car washs and station sewage purification system - Google Patents
Commercial concrete mixing plant transportation tank car washs and station sewage purification system Download PDFInfo
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- CN211688622U CN211688622U CN202020121136.9U CN202020121136U CN211688622U CN 211688622 U CN211688622 U CN 211688622U CN 202020121136 U CN202020121136 U CN 202020121136U CN 211688622 U CN211688622 U CN 211688622U
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- 239000010865 sewage Substances 0.000 title claims abstract description 42
- 238000002156 mixing Methods 0.000 title claims abstract description 34
- 238000000746 purification Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000004575 stone Substances 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 238000004140 cleaning Methods 0.000 claims abstract description 31
- 239000004576 sand Substances 0.000 claims abstract description 10
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000012065 filter cake Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 5
- 230000000153 supplemental effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000011499 joint compound Substances 0.000 description 19
- 239000002002 slurry Substances 0.000 description 19
- 238000004062 sedimentation Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The invention discloses a commercial concrete mixing plant transportation tank car cleaning and station sewage purification system, sewage at the tank car cleaning position enters a sand-stone separator through a pipeline, the sand-stone separator divides the sewage into sand stone and muddy water, the muddy water and station sewage enter a fishing pit through pipelines, a dewatering bucket elevator in the fishing pit backwashes the bottom flow in the fishing pit to the sand-stone separator for re-separation, the periphery of the top of the fishing pit overflows into a buffer pool, a stirring device in the buffer pool stirs the mud therein, then the mud is divided into two paths, one path is divided into two paths through the pipeline to a stirring building for reuse, the other path enters a stirring barrel through the pipeline, a dosing machine is arranged on the stirring barrel, mixed liquid in the stirring barrel enters a filter press through the pipeline to generate filter cakes and filtrate, the filtrate enters a circulating water tank through the pipeline, regenerated circulating water in the circulating water tank returns to the tank car cleaning position through the, the tank car is cleaned again; the invention has simple structure, reliable process, easy control, high efficiency and environmental protection.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a cleaning and station sewage purification system for a commercial concrete mixing plant transportation tank car.
Background
Concrete delivery tankers are the primary means of transporting commercial concrete. In order to avoid the consolidation of residual concrete in the concrete transportation tank car, the transportation tank car needs to be cleaned at proper time, the sewage generated after cleaning contains hydraulic materials such as sand stone, cement, mineral admixtures (fly ash, slag powder and the like), the components are contained in the running leakage of the mixing plant and the sweeping sewage to different degrees, and the direct discharge can cause the pollution of peripheral water bodies and the damage of ecological environment; the reuse of all the sewage will cause serious hidden quality troubles. In order to save resources and protect the environment, purification treatment is required. The traditional cleaning of concrete transportation tank cars of mixing plants and sewage purification treatment of stations mostly use a multistage slope sedimentation tank series connection process, the process has the prominent problems of large occupied area of the sedimentation tank, easy clogging, deteriorated sedimentation effect, serious circulation accumulation of fine mud, sand and stone resource loss, poor quality of circulating water, instability, serious secondary pollution and the like, particularly, in the concentrated high-density car washing period, the instant flow of car washing sewage is large, the solid concentration is high, the clarification effect of the multistage sedimentation tank is seriously influenced, and the quality of circulating water cannot be ensured; sediments in the slope sedimentation tank are cleaned by a forklift and a digging machine, so that manpower and material resources are consumed, and the dug sediments are high in moisture and difficult to directly transport, store and utilize; if the sediments in the multistage sedimentation tank are not cleaned in time, the upper water layer of the sedimentation tank is too shallow, the water flow speed is higher, the particles are difficult to settle, the concentration of overflow muddy water is increased, the quality of the circulating water is deteriorated, and the production is seriously influenced; and an automatic detection control system is not adopted in most cases, so that the operation management is extensive, and the addition amount of the medicament and the like are seriously influenced by human factors. The commercial concrete mixing plant transportation tank car cleaning and station sewage purification system provided by the invention provides a set of efficient, reliable and environment-friendly concrete transportation tank car cleaning and station sewage purification regeneration process, and the process system has strong adaptability, high reliability, high circulating water quality, low mud cake moisture and less solid waste discharge.
Disclosure of Invention
In order to solve the problems of a concrete transportation tank car sewage treatment system in the prior art and a multi-stage slope sedimentation tank in a muddy water purification link, the invention provides a commercial concrete mixing plant transportation tank car cleaning and station sewage purification system which is simple in structure, easy to control, high-efficiency and environment-friendly.
In order to achieve the purpose, the invention adopts the technical scheme that:
a commercial concrete mixing plant transportation tank car cleaning and station sewage purification system comprises a sand-stone separator, a fishing pit, a buffer pool, a mixing tank, a filter press and a circulating water tank,
sewage at the cleaning part of the tank car enters a sand-stone separator through a pipeline, the sand-stone separator divides the sewage at the cleaning part of the tank car into sand stone and muddy water, the muddy water and station sewage enter a fishing pit through a pipeline, a dewatering bucket elevator in the fishing pit backflushes the underflow in the fishing pit to the sand-stone separator for separation again, the periphery of the top of the fishing pit overflows to enter a buffer pool, a stirring device in the buffer pool stirs the mud in the buffer pool, the mud is split into two paths, one path of the mud is split to a stirring building for recycling through the pipeline, the other path of the mud enters a stirring barrel through the pipeline, a dosing machine is arranged on the stirring barrel, mixed liquid in the stirring barrel enters a filter press through the pipeline to generate filter cakes and filtrate, the filtrate enters a circulating water tank through the pipeline, and the regenerated circulating water in the.
Furthermore, the circulating water tank is connected with a replenishing water tank through a pipeline.
Furthermore, a slurry pump is arranged between the buffer pool and the stirring barrel.
Further, a high-pressure pump is arranged between the stirring barrel and the filter press.
Furthermore, a water pump is arranged on a water outlet pipeline of the circulating water tank.
Further, the medicine adding machine adds a filter aid agent and/or clear water into the stirring barrel.
A method for cleaning a commercial concrete mixing plant transportation tank car and purifying station yard sewage comprises the following steps:
s1, tank car cleaning: the method comprises the following steps of (1) extracting regenerated circulating water from a circulating water pool by using a water pump to clean a tank car, and supplementing clean water to the circulating water pool from a supplementing water pool;
s2, recovering sand: in the tank car cleaning process, the tank car discharges sewage containing sand, mineral admixture and gel material, the sewage flows into a sand-stone separator through a pipeline, the sand-stone separator recovers sand-stone aggregate, and muddy water is discharged through the pipeline;
s3, purifying mud water: muddy water discharged by the sand-stone separator and station sewage are conveyed to a fishing pit through pipelines for hydraulic classification, wherein: the fishing pit adopts central feeding and overflow around the top, the overflow of the fishing pit enters a buffer pool, and a stirring device is additionally arranged on the buffer pool to prevent the gel material contained in the muddy water from depositing and solidifying;
s4, recycling mud water: the slurry in the buffer pool is divided into two paths, wherein one path of the slurry flows back to the stirring building through a pipeline in a shunting way for direct utilization;
s5, fine mud recovery: and the other path of slurry in the buffer tank is conveyed to a stirring barrel by a slurry pump, the slurry in the stirring barrel is conveyed to a filter press by a high-pressure pump, the dehydration and the recovery of the fine slurry are realized, the fine slurry generates a filter cake under the action of the filter press, and the clarified filtrate is conveyed to a circulating water tank for reuse by a pipeline.
Further, in step S2, the slurry flowing out of the sand-stone separator enters a fishing pit, and the dewatering bucket elevator in the fishing pit continuously fishes out the sediment in the fishing pit, and after gravity dewatering, the sediment is conveyed back to the sand-stone separator for secondary separation, and lost sand-stone particles are recovered.
Further, in the step S5, the mixing tank is connected to a chemical feeder, the filter aid chemical and/or the clean water is added to the mixing tank through the chemical feeder, and the filter aid chemical and/or the clean water is delivered to the filter press by the high-pressure pump after being fully mixed with the slurry in the mixing tank.
Compared with the prior art, the invention has the following beneficial effects:
the bucket fishing pit is adopted to replace the traditional multistage slope sedimentation tank, so that the real-time discharge of the deposited materials is realized, the floor area of the multistage slope sedimentation tank is reduced, the hydraulic classification effect is improved, and the intermittent defect of the dredging mode of adopting a forklift and a excavator is reduced; the low-concentration sludge-water direct filter pressing process is adopted, so that the sludge-water concentration link is avoided, the process flow is simplified, and the sludge-water purification efficiency and the quality of circulating water are improved; the full-automatic filter press with the filter cloth cleaning function is adopted, so that the labor intensity of workers is greatly reduced; the intelligent and accurate addition of the filter aid improves the adaptability of the muddy water purification system to the number and quality fluctuation of the muddy water to be treated.
The solid-liquid separation adopts a direct filter pressing process, and the direct filter pressing mode not only avoids the concentration link and simplifies the process, but also improves the muddy water purification efficiency and the quality of circulating water; and a full-automatic filter press is adopted, so that the automation degree is high and the filter pressing effect is good.
Drawings
FIG. 1 is a process flow diagram of the purification method of the present invention;
FIG. 2 is a schematic view showing the construction of the purification system of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in figure 1-2, a commercial concrete mixing plant transportation tank car cleaning and station sewage purification system comprises a sand-stone separator, a fishing pit, a buffer pool, a mixing tank, a filter press and a circulating water pool, wherein sewage at the cleaning part of the tank car enters the sand-stone separator through a pipeline, the sand-stone separator divides the sewage cleaned by the tank car into sand stone and mud water, the mud water and the station sewage enter the fishing pit through pipelines, a dewatering bucket elevator in the fishing pit backwashes the bottom flow in the fishing pit to the sand-stone separator for re-separation, the periphery of the top of the fishing pit overflows into the buffer pool, a stirring device in the buffer pool stirs the mud therein, then the mud is divided into two paths, one path is divided into two paths through the pipeline to the mixing plant for recycling, the other path enters the mixing tank through the pipeline, a chemical adding machine is arranged on the mixing tank, the mixed liquid in the mixing tank enters, and the filtrate enters a circulating water tank through a pipeline, and the regenerated circulating water in the circulating water tank returns to the tank car cleaning position through a pipeline and is used for cleaning the tank car again.
Preferably, the circulating water tank is also connected with a replenishing water tank through a pipeline; a slurry pump is arranged between the buffer pool and the stirring barrel; a high-pressure pump is arranged between the stirring barrel and the filter press; a water outlet pipeline of the circulating water tank is provided with a water pump; the drug adding machine adds filter aid agent and/or clear water into the stirring barrel.
A method for cleaning a commercial concrete mixing plant transportation tank car and purifying station yard sewage comprises the following steps:
s1, tank car cleaning: the tank car is cleaned by pumping the regenerated circulating water from the circulating water pool by a water pump, and clear water resources are saved by supplementing clear water to the circulating water pool from the supplementing water pool;
s2, recovering sand: in the process of cleaning the tank truck, the tank truck discharges sewage containing sand, mineral blends and gel materials, the sewage flows into a sand-stone separator through a pipeline, the sand-stone separator recovers sand-stone aggregates, sand-stone resources are saved, and muddy water is discharged through the pipeline;
s3, purifying mud water: muddy water discharged by the sand-stone separator and station sewage are conveyed to a fishing pit through pipelines for hydraulic classification, wherein: the fishing pit adopts central feeding, the periphery of the top overflows, the overflow of the fishing pit enters a buffer pool, a stirring device is additionally arranged on the buffer pool to prevent gel materials (cement, mineral powder, fly ash and the like) contained in the muddy water from depositing and solidifying, a dewatering bucket elevator is arranged inside the fishing pit, the muddy water flowing out of the sand-stone separator enters the fishing pit, the dewatering bucket elevator in the fishing pit continuously fishes out the precipitate in the fishing pit, and the precipitate is conveyed back to the sand-stone separator for secondary separation after gravity dewatering, lost sand-stone particles are recovered, waste of sand-stone resources is reduced, and adverse effects of coarse particles on subsequent operation are reduced;
s4, recycling mud water: the slurry in the buffer pool is divided into two paths, wherein one path of the slurry flows back to the stirring building through a pipeline in a shunting way for direct utilization; specifically, according to the production condition of the mixing plant, partial mud water in the mud water buffer tank can be appropriately returned to the mixing plant for direct utilization, so that not only can clear water resources be saved, but also the waste of gel materials and the discharge of solid wastes can be reduced, and the mud water amount entering the subsequent operation can be reduced;
s5, fine mud recovery: the other path of slurry in the buffer tank is conveyed to a stirring barrel by a slurry pump, the slurry in the stirring barrel is conveyed to a filter press by a high-pressure pump, the dehydration and the recovery of the fine slurry are realized, the fine slurry generates a filter cake under the action of the filter press, and the filter cake has low water content and is easy to store, transport, handle and utilize; the direct filter pressing mode is adopted, so that the concentration link is avoided, the process is simplified, and the muddy water purification efficiency and the quality of circulating water are improved; conveying the clear filtrate to a circulating water tank through a pipeline for reuse; the mixing tank is connected with a chemical adding machine, the filter aid chemical and/or the clear water are added into the mixing tank through the chemical adding machine, and the filter aid chemical and/or the clear water are fully mixed with the slurry in the mixing tank and then conveyed to the filter press through the high-pressure pump.
As a preferred mode, the dehydration bucket elevator is installed in a bailing pit, the bailing pit adopts central feeding and peripheral overflow at the top, precipitates in the bailing pit are dehydrated through the installed dehydration bucket elevator by gravity, and then conveyed back to the sand-stone separator for secondary separation, lost sand-stone particles are recovered, waste of sand-stone resources is reduced, adverse effects of coarse particles on subsequent operation are reduced, the dehydration bucket elevator belongs to the prior art, and the dehydration bucket elevator can be directly purchased, installed and used.
As a preferred mode, the dosing machine can adopt automatic dosing equipment, the automatic dosing equipment belongs to the existing device, and the automatic dosing equipment can be directly purchased and installed.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. A commercial concrete mixing plant transportation tank car cleaning and station sewage purification system is characterized by comprising a sand-stone separator, a fishing pit, a buffer pool, a mixing tank, a filter press and a circulating water pool,
sewage at the cleaning part of the tank car enters a sand-stone separator through a pipeline, the sand-stone separator divides the sewage at the cleaning part of the tank car into sand stone and muddy water, the muddy water and station sewage enter a fishing pit through a pipeline, a dewatering bucket elevator in the fishing pit backflushes the underflow in the fishing pit to the sand-stone separator for separation again, the periphery of the top of the fishing pit overflows to enter a buffer pool, a stirring device in the buffer pool stirs the mud in the buffer pool, the mud is split into two paths, one path of the mud is split to a stirring building for recycling through the pipeline, the other path of the mud enters a stirring barrel through the pipeline, a dosing machine is arranged on the stirring barrel, mixed liquid in the stirring barrel enters a filter press through the pipeline to generate filter cakes and filtrate, the filtrate enters a circulating water tank through the pipeline, and the regenerated circulating water in the.
2. The commercial concrete mixing plant transportation tank car cleaning and yard sewage purification system of claim 1 wherein said circulating water tank is further connected to a supplemental water tank by a pipeline.
3. The commercial concrete mixing plant transport tanker cleaning and yard sewage purification system of claim 1, wherein a mud pump is provided between said buffer tank and the mixing drum.
4. The commercial concrete mixing plant transportation tank car cleaning and station yard sewage purification system of claim 1 wherein a high pressure pump is provided between the mixing tank and the filter press.
5. The commercial concrete mixing plant transportation tank car cleaning and yard sewage purification system of claim 1 wherein a water pump is disposed on the water outlet pipeline of said circulating water tank.
6. The commercial concrete batching plant transportation tanker cleaning and yard sewage purification system of claim 1, wherein said dosing machine adds filter aid chemicals and/or clear water to the batching drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020121136.9U CN211688622U (en) | 2020-01-19 | 2020-01-19 | Commercial concrete mixing plant transportation tank car washs and station sewage purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020121136.9U CN211688622U (en) | 2020-01-19 | 2020-01-19 | Commercial concrete mixing plant transportation tank car washs and station sewage purification system |
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| Publication Number | Publication Date |
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| CN211688622U true CN211688622U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020121136.9U Expired - Fee Related CN211688622U (en) | 2020-01-19 | 2020-01-19 | Commercial concrete mixing plant transportation tank car washs and station sewage purification system |
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| CN (1) | CN211688622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072186A (en) * | 2020-01-19 | 2020-04-28 | 中国矿业大学 | System and method for cleaning commercial concrete mixing plant transportation tank car and purifying station sewage |
| CN114873707A (en) * | 2022-05-24 | 2022-08-09 | 四川省铁路建设有限公司 | Concrete mixing station production sewage treatment, regeneration and recycling system and method |
-
2020
- 2020-01-19 CN CN202020121136.9U patent/CN211688622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072186A (en) * | 2020-01-19 | 2020-04-28 | 中国矿业大学 | System and method for cleaning commercial concrete mixing plant transportation tank car and purifying station sewage |
| CN114873707A (en) * | 2022-05-24 | 2022-08-09 | 四川省铁路建设有限公司 | Concrete mixing station production sewage treatment, regeneration and recycling system and method |
| CN114873707B (en) * | 2022-05-24 | 2023-09-19 | 四川省铁路建设有限公司 | System and method for treating, regenerating and recycling production sewage of concrete mixing station |
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Granted publication date: 20201016 |