CN216584289U - Efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater - Google Patents
Efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater Download PDFInfo
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- CN216584289U CN216584289U CN202123207071.3U CN202123207071U CN216584289U CN 216584289 U CN216584289 U CN 216584289U CN 202123207071 U CN202123207071 U CN 202123207071U CN 216584289 U CN216584289 U CN 216584289U
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- cold rolling
- flotation device
- steel cold
- air flotation
- rolling wastewater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a high-efficiency nano air flotation device for recycling and pretreating steel cold rolling wastewater, and relates to the field of mechanical equipment. The efficient nano air flotation device for the steel cold rolling wastewater recycling pretreatment is added between the softening treatment process and the subsequent mechanical filtration process, so that fine suspended matters in wastewater can be effectively removed by flotation through nano-scale bubbles, and the load of the subsequent treatment unit is effectively reduced.
Description
Technical Field
The utility model relates to the field of mechanical equipment, in particular to an efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater.
Background
A cold rolling mill in the steel industry is provided with an acid pickling continuous rolling unit, a continuous annealing unit, a leveling unit, a color coating unit, a galvanizing unit and the like, the units can generate wastewater containing acid, oil and the like in the production process, desalted water is usually adopted during rinsing of steel plates, the salt content of the wastewater is low, the conductivity is low, and the recycling value is high. Meanwhile, a circulating water station is arranged in a cold rolling plant, the circulating water station needs to continuously supplement water lost in the processes of evaporation, blowing, pollution discharge and the like in the operation process, the water quality requirement of supplemented water is high, the requirements on conductivity, COD (chemical oxygen demand), suspended matters and the like are met, and the requirements of waste water after being treated by the conventional process are difficult to meet. The wastewater after the steel cold rolling wastewater treatment reaches the standard and is softened contains a large amount of fine suspended matters, and if the wastewater directly enters a filter, the filter is blocked, so that the suspended matters in the wastewater can be effectively removed by floatation and sedimentation through the high-efficiency nano air floatation device. The existing nano air flotation device is not suitable for treating the steel cold rolling wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing the efficient nano air flotation device for the recycling pretreatment of the steel cold rolling wastewater, the air flotation device is added between the softening treatment process and the subsequent mechanical filtration process, and the fine suspended matters in the wastewater can be effectively removed by flotation through nano-scale bubbles, so that the load of the subsequent treatment unit is effectively reduced.
In order to achieve the above purpose, the present invention provides the following technical solutions:
this high-efficient nanometer air supporting device of cold rolling waste water retrieval and utilization preliminary treatment of steel includes that inside installs the processing case of baffle perpendicularly, and processing roof portion is installed and is scraped the sediment machine, handles incasement portion and externally mounted and have endless back flow, and the back flow is located the position of handling the incasement portion and installs dissolved air pump, and the back flow is located the one end of handling incasement portion and installs bubble transmitter, and it has the mud pipe to handle bottom of the case portion intercommunication, installs the mud pump on the mud pipe.
As a further optimization of the technical scheme, the treatment box and the partition plate are both made of stainless steel and are connected through welding.
As a further optimization of the technical scheme, the slag scraper is a chain type slag scraper.
As a further optimization of the technical scheme, the return pipe and the sludge discharge pipe are both made of stainless steel and are connected with the treatment box through welding.
As a further optimization of the technical scheme, the bubble emitter is a micro-nano bubble emitter.
The beneficial effect of adopting above technical scheme is: this high-efficient nanometer air supporting device of cold-rolled waste water retrieval and utilization preliminary treatment of steel can pour into the treatment box with the cold-rolled waste water of steel when using, opens dissolved air pump and lets during sewage gets into the bubble transmitter from the back flow, opens and scrapes the sediment machine and scrape the foam of bubble transmitter, can effectually float through the nanometer bubble with the slight suspended solid in the waste water and get rid of to effectively reduce follow-up processing unit's load. And (4) starting a sludge discharge pump to discharge the sludge at the bottom of the treatment box from a sludge discharge pipe, and finally discharging the treated water out of the treatment box to finish sewage treatment. The efficient nano air flotation device for the steel cold rolling wastewater recycling pretreatment is added between the softening treatment process and the subsequent mechanical filtration process, so that fine suspended matters in wastewater can be effectively removed by flotation through nano-scale bubbles, and the load of the subsequent treatment unit is effectively reduced.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the high-efficiency nano air flotation device for steel cold rolling wastewater reuse pretreatment.
Wherein, 1-treatment box, 2-slag scraper, 3-bubble emitter, 4-dissolved air pump, 5-dredge pump, 6-reflux pipe, 7-dredge pipe, 8-baffle.
Detailed Description
The preferred embodiment of the high-efficiency nano air flotation device for the steel cold rolling wastewater recycling pretreatment is described in detail below with reference to the accompanying drawings.
FIG. 1 shows a specific implementation manner of the high-efficiency nano air flotation device for steel cold rolling wastewater reuse pretreatment:
as shown in figure 1, the high-efficiency nano air flotation device for steel cold rolling wastewater reuse pretreatment comprises a treatment box 1 with a partition plate 8 vertically arranged inside, wherein the treatment box 1 is communicated with a liquid inlet pipe. Handle 1 top of case and install sediment machine 2, handle 1 inside and externally mounted of case and have endless back flow 6, back flow 6 is located the position of handling 1 outside of case and installs solution pump 4, and back flow 6 is located and handles 1 inside one end of case and install bubble emitter 3, handles 1 bottom intercommunication of case and has mud pipe 7, installs mud pump 5 on the mud pipe 7.
The treatment box 1 and the partition plate 8 are made of stainless steel, are firm and durable, have good corrosion resistance, and are connected with each other by welding. The slag scraper 2 is a chain type slag scraper and has good slag scraping effect. The return pipe 6 and the mud pipe 7 are made of stainless steel, and are firm and durable, the corrosion resistance is good, and the return pipe 6 and the mud pipe 7 are connected with the treatment box 1 through welding. The bubble emitter 3 is a micro-nano bubble emitter and has powerful functions.
This high-efficient nanometer air supporting device of cold-rolled waste water retrieval and utilization preliminary treatment of steel can pour into treatment box 1 with the cold-rolled waste water of steel when using, opens dissolved air pump 4 and lets sewage get into bubble emitter 3 from back flow 6 in, opens and scrapes sediment machine 2 and scrape the foam of bubble emitter 3, can effectually float the slight suspended solid in the waste water and get rid of through the nanometer bubble to effectively reduce follow-up processing unit's load. And (3) starting a sludge discharge pump 5, discharging sludge at the bottom of the treatment tank 1 from a sludge discharge pipe 7, and finally discharging the treated water out of the treatment tank 1 to finish sewage treatment. The efficient nano air flotation device for the steel cold rolling wastewater recycling pretreatment is added between the softening treatment process and the subsequent mechanical filtration process, so that fine suspended matters in wastewater can be effectively removed by flotation through nano-scale bubbles, and the load of the subsequent treatment unit is effectively reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (5)
1. The high-efficiency nano air flotation device for the steel cold rolling wastewater recycling pretreatment is characterized in that: high-efficient nanometer air supporting device of steel cold rolling waste water retrieval and utilization preliminary treatment includes that inside installs treatment case (1) of baffle (8) perpendicularly, and treatment case (1) top is installed and is scraped sediment machine (2), and treatment case (1) is inside and externally mounted has endless back flow (6), and back flow (6) are located the position of handling case (1) outside and install dissolved air pump (4), and back flow (6) are located the inside one end of handling case (1) and install bubble emitter (3), and treatment case (1) bottom intercommunication has mud pipe (7), installs mud pump (5) on mud pipe (7).
2. The high-efficiency nano air flotation device for steel cold rolling wastewater recycling pretreatment according to claim 1, characterized in that: the treatment box (1) and the partition plate (8) are both made of stainless steel, and the treatment box (1) and the partition plate (8) are connected through welding.
3. The high-efficiency nano air flotation device for steel cold rolling wastewater recycling pretreatment according to claim 1, characterized in that: the slag scraper (2) is a chain type slag scraper.
4. The high-efficiency nano air flotation device for steel cold rolling wastewater recycling pretreatment according to claim 1, characterized in that: the return pipe (6) and the sludge discharge pipe (7) are both made of stainless steel, and the return pipe (6) and the sludge discharge pipe (7) are both connected with the treatment box (1) through welding.
5. The high-efficiency nano air flotation device for steel cold rolling wastewater recycling pretreatment according to claim 1, characterized in that: the bubble emitter (3) is a micro-nano bubble emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207071.3U CN216584289U (en) | 2021-12-20 | 2021-12-20 | Efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123207071.3U CN216584289U (en) | 2021-12-20 | 2021-12-20 | Efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216584289U true CN216584289U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202123207071.3U Active CN216584289U (en) | 2021-12-20 | 2021-12-20 | Efficient nano air flotation device for recycling and pretreating steel cold rolling wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN216584289U (en) |
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2021
- 2021-12-20 CN CN202123207071.3U patent/CN216584289U/en active Active
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