CN202054685U - DMF (dimethyl formamide) waste water pretreatment device - Google Patents
DMF (dimethyl formamide) waste water pretreatment device Download PDFInfo
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- CN202054685U CN202054685U CN2011200213264U CN201120021326U CN202054685U CN 202054685 U CN202054685 U CN 202054685U CN 2011200213264 U CN2011200213264 U CN 2011200213264U CN 201120021326 U CN201120021326 U CN 201120021326U CN 202054685 U CN202054685 U CN 202054685U
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to a DMF (dimethyl formamide) waste water pretreatment device, which comprises agent cylinders, a gas dissolution pot, a gas floatation clarifier and a centrifugal filter. The gas floatation clarifier comprises a flocculation tank A, a flocculation tank B, a gas floatation tank, a sludge tank and a clear water tank. An agent cylinder A and a waste water pipeline are communicated with the bottom of the flocculation tank A through a pipeline, the bottom of the gas dissolution pot and an agent cylinder B are communicated with the bottom of the flocculation tank B, and a sieve net is arranged between the flocculation tank B and the flocculation tank A. A scraper device is arranged at the upper end of the gas floatation tank, a clear liquid collecting tube communicated with the clear water tank is arranged on the lower portion of the gas floatation tank, and the upper portion of the gas floatation tank is communicated with the sludge tank which is communicated with the centrifugal filter through a pipeline and a pump. The DMF waste water pretreatment device is convenient in mounting, simple in operation, easy to master and low in treatment cost.
Description
Technical field:
The utility model relates to a kind of DMF sewage pretreatment device.
Background technology:
In urethane wet-method synthetic leather production process, can produce a large amount of DMF waste water.In these DMF waste water, remove and contain about 20% DMF, also contain solid substances such as cloth hair about 0.5%, wood powder, lime carbonate, these solid substances are not as carrying out purifying treatment, can in the DMF retrieving arrangement, form dirt very soon, have a strong impact on the heat exchange effect of DMF retrieving arrangement, DMF retrieving arrangement treatment capacity is descended rapidly.Retrieving arrangement prolongs working time, and the coal consumption power consumption increases, and also causes huge waste to enterprise.
Summary of the invention:
The purpose of this invention is to provide a kind of can rapidly the solid substance in the DMF waste water being separated, the DMF sewage pretreatment device that effluent quality is good.
The DMF sewage pretreatment device, by pharmacy jar, dissolving, the air supporting machine, centrifugal filter is formed, the air supporting machine is divided into flocculation basin A, flocculation basin B, air flotation pool, sludge sump and clean water basin, pharmacy jar A and waste pipe are communicated with flocculation basin A bottom by pipeline, the bottom of dissolving and pharmacy jar B are communicated with flocculation basin B bottom, between flocculation basin B and the flocculation basin A screen cloth is set, the upper end of air flotation pool is provided with the scraper plate machine, the bottom of air flotation pool is provided with the clear liquid collection tube, the clear liquid collection tube is communicated with clean water basin, the top of air flotation pool is communicated with sludge sump, and sludge sump is communicated with centrifugal filter by pipeline and pump.
Preferably, the upper end of dissolving connects air compressor and is communicated with clean water basin by pump.
Preferably, centrifugal filter is communicated with liquid phase pond and solid phase pond, and the liquid phase pond is communicated with flocculation basin A by pipeline and pump.
Working process of the present utility model is: coagulation medicine among the pharmacy jar A and DMF waste water are driven into the preliminary wadding that coagulates among the flocculation basin A, DMF waste water enters among the flocculation basin B then, flocculation medicine among the pharmacy jar B is driven among the flocculation basin B, the compressed-air actuated water that is mixed with in the dissolving discharges from flocculation basin B bottom simultaneously, constantly change greatly and proportion reduces greatly and continuous come-up to make flocs unit, flocs unit scrapes in the sludge sump through the scraper plate machine, then in being pumped into centrifugal filter, the liquid phase that filters out enters in the liquid phase pond, use among the pump suction flocculation basin A through post precipitation, the solid phase that centrifugal filter filters out is sent into the solid phase pond.
The utility model can be separated the solid substance in the DMF waste water rapidly, and after treatment, the solid substance in the DMF waste water can descend 90%, and the utility model is easy for installation, and is simple to operate, is easy to grasp, processing cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1 pharmacy jar A, 2 pharmacy jar B, 3 dissolvings, 4 flocculation basin A, 5 flocculation basin B
6 air flotation pools, 7 sludge sumps, 8 clean water basin, 9 centrifugal filters
12 solid phase ponds, 10 waste pipes, 11 liquid phase ponds, 13 pumps, 14 clear liquid collection tubes
15 scraper plate machines.
Embodiment
The DMF sewage pretreatment device, form by pharmacy jar, dissolving 2, air supporting machine, centrifugal filter 9, the air supporting machine is divided into flocculation basin A4, flocculation basin B5, air flotation pool 6, sludge sump 7, with clean water basin 8, pharmacy jar A1 and waste pipe are communicated with flocculation basin A4 bottom by pipeline and pump 13, the bottom of dissolving 3 and pharmacy jar B2 are communicated with flocculation basin B5 bottom, and the upper end of dissolving 3 connects air compressor and is communicated with clean water basin by pump 13.Between flocculation basin B5 and the flocculation basin A4 screen cloth is set, the upper end of air flotation pool 6 is provided with scraper plate machine 15, the bottom of air flotation pool 6 is provided with clear liquid collection tube 14, clear liquid collection tube 14 is communicated with clean water basin 8, the top of air flotation pool 6 is communicated with sludge sump 7, sludge sump 7 is communicated with centrifugal filter 9 by pipeline and pump 13, and centrifugal filter 9 is communicated with liquid phase pond 11 and solid phase pond 12, and liquid phase pond 12 is communicated with flocculation basin A by pipeline and pump 13.
Claims (3)
1.DMF sewage pretreatment device, by pharmacy jar, dissolving, the air supporting machine, centrifugal filter is formed, it is characterized in that, the air supporting machine is divided into flocculation basin A, flocculation basin B, air flotation pool, sludge sump and clean water basin, separate by screen cloth between flocculation basin A and the flocculation basin B, pharmacy jar A and waste pipe are communicated with flocculation basin A bottom by pipeline, the bottom of dissolving and pharmacy jar B are communicated with flocculation basin B bottom, the upper end of air flotation pool is provided with the scraper plate machine, the bottom of air flotation pool is provided with the clear liquid collection tube, the clear liquid collection tube is communicated with clean water basin, and the top of air flotation pool is communicated with sludge sump, and sludge sump is communicated with centrifugal filter by pipeline and pump.
2. according to the described DMF sewage pretreatment device of claim 1, it is characterized in that the upper end of dissolving connects air compressor and is communicated with clean water basin by pump.
3. according to the described DMF sewage pretreatment device of claim 1, it is characterized in that centrifugal filter is communicated with liquid phase pond and solid phase pond, the liquid phase pond is communicated with flocculation basin A by pipeline and pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200213264U CN202054685U (en) | 2011-01-24 | 2011-01-24 | DMF (dimethyl formamide) waste water pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200213264U CN202054685U (en) | 2011-01-24 | 2011-01-24 | DMF (dimethyl formamide) waste water pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202054685U true CN202054685U (en) | 2011-11-30 |
Family
ID=45014666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200213264U Expired - Fee Related CN202054685U (en) | 2011-01-24 | 2011-01-24 | DMF (dimethyl formamide) waste water pretreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202054685U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674639A (en) * | 2012-06-07 | 2012-09-19 | 故城县海青皮草有限公司 | Treatment process and treatment device of mink skin tanning waste water |
| CN107098496A (en) * | 2017-04-05 | 2017-08-29 | 浙江工业大学 | Preprocess method and its device that PU chemical leather DMF waste liquor rectifications are reclaimed |
| CN110862132A (en) * | 2019-11-27 | 2020-03-06 | 西安交通大学 | Polyurethane-containing synthetic leather DMF wastewater solid-liquid separation process |
-
2011
- 2011-01-24 CN CN2011200213264U patent/CN202054685U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674639A (en) * | 2012-06-07 | 2012-09-19 | 故城县海青皮草有限公司 | Treatment process and treatment device of mink skin tanning waste water |
| CN107098496A (en) * | 2017-04-05 | 2017-08-29 | 浙江工业大学 | Preprocess method and its device that PU chemical leather DMF waste liquor rectifications are reclaimed |
| CN110862132A (en) * | 2019-11-27 | 2020-03-06 | 西安交通大学 | Polyurethane-containing synthetic leather DMF wastewater solid-liquid separation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20140124 |