CN202410470U - Secondary dust removal system shared by stainless steel smelting and plain steel smelting - Google Patents
Secondary dust removal system shared by stainless steel smelting and plain steel smelting Download PDFInfo
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- CN202410470U CN202410470U CN2012200513051U CN201220051305U CN202410470U CN 202410470 U CN202410470 U CN 202410470U CN 2012200513051 U CN2012200513051 U CN 2012200513051U CN 201220051305 U CN201220051305 U CN 201220051305U CN 202410470 U CN202410470 U CN 202410470U
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- steel smelting
- stainless steel
- dust removal
- branch road
- removal system
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a secondary dust removal system shared by stainless steel smelting and plain steel smelting, which relates to the technical field of combined systems for separating particles from gas or steam. The dust removal system comprises a flue gas dust removal device, and is characterized by further comprising a stainless steel smelting sewage treatment branch and a plain steel smelting sewage treatment branch, and the stainless steel smelting sewage treatment branch and the plain steel smelting sewage treatment branch are serially connected with the flue gas dust removal device by sewage aqueducts and flow dividing devices after being connected in parallel. The secondary dust removal system has the advantages that the stainless steel smelting sewage treatment branch is arranged on the original plain steel smelting sewage treatment branch in parallel, the two branches share devices arranged in front of the sewage aqueducts, only different valves corresponding to the sewage treatment branches need to be opened according to different types of smelting products during usage, universality is high, a part of the devices are shared, extra devices are saved, occupied area of the devices is reduced, production cost is greatly lowered, and economic benefit is increased.
Description
Technical field
The utility model relates to a kind of being used for from the combined system technical field of gas or steam separating particles.
Background technology
Existing ordinary steel is smelted dust pelletizing system, and the water treatment effect is more single.Capital equipment has flue, first Venturi tube, second Venturi tube, gravity dehydration device, keeps off dehydrator, blower fan, slush pump, dosing pump, cooling tower, muddy water pump etc. again.Flue gas through three the purifying processing of two literary compositions after, sewage is through red soil pond deposition, reuse after vertical precipitator tower dosing processing again.The mud of sedimentation basin and discharge supplies sintering to use; Converter and AOD stove exchange the back smelting stainless steel, and composition is different in the flue gas, and waste water suspension content is very high, and contains a spot of Cr
6+, belong to severe toxicity, heavily contaminated source, permeate the ground or obscure with other water source, polluted underground water, in order to satisfy environmental requirement, using water wisely requires to accomplish energy-saving and emission-reduction, to reduce environmental pollution to recycling after this wastewater treatment.
Red soil that smelting stainless steel produces, sintering can not be used, and the precipitator tower blowdown can not be arranged toward the sintering pond.Want to accomplish closed cycle, make Cr in the red soil
6+Be reduced, twice laid, water quality reaching standard, existing water treatment system can not satisfy above-mentioned condition, and not only production can be restricted, and causes great environmental pollution; Stainless steel smelting and ordinary steel are smelted and are adopted independent two-stage dust removal system respectively simultaneously, and occupation area of equipment is bigger, and hold facility quantity is many.
The utility model content
The utility model technical problem to be solved provides a kind of stainless steel smelting and ordinary steel and smelts shared two-stage dust removal system, and saving equipment reduces floor space, reduces production costs greatly, increases economic efficiency.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of stainless steel smelting and ordinary steel are smelted shared two-stage dust removal system, comprise fume dust remover; Its key improvements is: also comprise stainless steel smelting sewage disposal branch road and ordinary steel smelting sewage disposal branch road, said stainless steel smelting sewage disposal branch road and ordinary steel are connected with fume dust remover through the sewage aqueduct after smelting the parallel connection of sewage disposal branch road.
Said fume dust remover comprises flue, first Venturi tube, gravity dehydration device one, second Venturi tube, the gravity dehydration device two that connects successively and keeps off dehydrator again, the said dehydrator liquid outlet connection sewage aqueduct that keeps off again,
Said stainless steel smelting sewage disposal branch road comprises the regulating reservoir that docks with said sewage aqueduct outlet through first valve; The regulating reservoir outlet connects successively and adds sour pond, reduction pond, reaction tank, coagulating basin, permanent magnetism coacervation device, inclined-plate clarifying basin and muddy water pond, and the outlet of said muddy water pond connects the gravity dehydration device.
Said stainless steel smelting sewage disposal branch road also comprises sludge-tank and belt filter press, and said belt filter press inlet dock with sludge-tank, and its liquid phase exports and adds sour pond and enter the mouth and dock.
Said ordinary steel is smelted the sewage disposal branch road and is comprised the red soil sedimentation basin that docks with said sewage aqueduct outlet by means of second valve, docks cesspool, slush pump, vertical precipitator tower, muddy water pond, feed pump and reuse dust pelletizing system successively with red soil sedimentation basin liquid phase export mouth.
The beneficial effect of the utility model is following: on original ordinary steel smelting sewage disposal branch road basis, be set up in parallel stainless steel smelting sewage disposal branch road, and two shared sewage aqueducts of branch road equipment before, a valve that in use only needs to open corresponding sewage disposal branch road according to the difference of matallurgical products kind gets final product; Highly versatile; And some equipment is shared, and saving equipment reduces occupation area of equipment; Reduce production costs greatly, increase economic efficiency.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Fig. 1 is the theory diagram (ordinary steel converter smelting dedusting branch road) of the utility model;
Fig. 2 is the theory diagram (stainless steel smelting dedusting branch road part) of the utility model.
The specific embodiment
As depicted in figs. 1 and 2, the utility model discloses a kind of stainless steel smelting and ordinary steel and smelts shared two-stage dust removal system, comprises fume dust remover; Its key improvements is: comprise that also stainless steel smelting sewage disposal branch road and ordinary steel smelt the sewage disposal branch road, said stainless steel smelting sewage disposal branch road and ordinary steel are smelted and are passed through sewage aqueduct connect with fume dust remover (as shown in Figure 2) after the parallel connection of sewage disposal branch road.
Said fume dust remover comprises flue, first Venturi tube, gravity dehydration device one, second Venturi tube, the gravity dehydration device two that connects successively and keeps off dehydrator again, the said dehydrator liquid outlet connection sewage aqueduct that keeps off again,
Said stainless steel smelting sewage disposal branch road comprises the regulating reservoir that docks with said sewage aqueduct outlet through first valve; The regulating reservoir outlet connects successively and adds sour pond, reduction pond, reaction tank, coagulating basin, permanent magnetism coacervation device, inclined-plate clarifying basin and muddy water pond, and the outlet of said muddy water pond connects the gravity dehydration device.
Said stainless steel smelting sewage disposal branch road also comprises sludge-tank and belt filter press, and said belt filter press inlet dock with sludge-tank, and its liquid phase exports and adds sour pond and enter the mouth and dock.
Said ordinary steel is smelted the sewage disposal branch road and is comprised the red soil sedimentation basin that docks with said sewage aqueduct outlet by means of second valve, docks cesspool, slush pump, vertical precipitator tower, muddy water pond, feed pump and reuse dust pelletizing system (as shown in Figure 1) successively with red soil sedimentation basin liquid phase export mouth.
In concrete application process; Original sewage aqueduct outlet that is applied in the ordinary steel converter smelting dust pelletizing system is divided into two, and by first valve and the control of second valve, first valve and second valve be corresponding ordinary steel converter smelting sewage disposal branch road and stainless steel smelting sewage disposal branch road respectively respectively; Switch mutually according to the matallurgical products kind; During the ordinary steel converter smelting, open red soil pond first valve, system's operation thus.Close into second valve of regulating reservoir system simultaneously.Smelting contains Cr
6+During stainless steel, open into second valve of regulating reservoir, get into Cr
6+Treatment system contains Cr
6+The processing of sewage, close into red soil cell system valve simultaneously.
The utility model has the advantages that to smelt and contain Cr
6+During stainless steel, dust waste water gets into regulating reservoir, gets into reaction tank through slush pump, in reaction tank, adds sulfur waste acid earlier, and the adjustment pH value adds ferrous sulfate or sodium pyrosulfite through automatic medicine adding apparatus to 3-4, with Cr
6+Restore All becomes Cr
3+, add lime or caustic alkali then to form behind the chromium hydroxide precipitation thing from flowing into coagulating basin, in coagulating basin, add PAC, flow out behind the PAM flocculant, behind permanent magnetism coacervation device, flow into the FRP inclined-plate clarifying basin, efficient deposition in sedimentation basin and reach and remove Cr
6+Purpose with iron mud.The sedimentation basin water outlet gets into the muddy water pond and stores and reuse after the cooling tower cooling.
Sludge treatment technique: the mud of each section of wastewater treatment generation, after in concentration basin, concentrating, to belt filter press, the dried mud outward transport after the press filtration is disposed by the high pressure sludge pumping, and filtrating is back to regulating reservoir and carries out double purification (as shown in Figure 2).
Claims (5)
1. stainless steel smelting and ordinary steel are smelted shared two-stage dust removal system; Comprise that fume dust remover is characterized in that: also comprise stainless steel smelting sewage disposal branch road and ordinary steel smelting sewage disposal branch road, said stainless steel smelting sewage disposal branch road and ordinary steel are connected with fume dust remover through the sewage aqueduct after smelting the parallel connection of sewage disposal branch road.
2. stainless steel smelting according to claim 1 and ordinary steel are smelted shared two-stage dust removal system; It is characterized in that: said fume dust remover comprises flue, first Venturi tube, gravity dehydration device one, second Venturi tube, the gravity dehydration device two that connects successively and keeps off dehydrator again that the said dehydrator liquid outlet that keeps off again connects the sewage aqueduct.
3. stainless steel smelting according to claim 1 and 2 and ordinary steel are smelted shared two-stage dust removal system; It is characterized in that: said stainless steel smelting sewage disposal branch road comprises the regulating reservoir that docks with said sewage aqueduct outlet through first valve; The regulating reservoir outlet connects successively and adds sour pond, reduction pond, reaction tank, coagulating basin, permanent magnetism coacervation device, inclined-plate clarifying basin and muddy water pond, and the outlet of said muddy water pond connects the gravity dehydration device.
4. stainless steel smelting according to claim 3 and ordinary steel are smelted shared two-stage dust removal system; It is characterized in that: said stainless steel smelting sewage disposal branch road also comprises sludge-tank and belt filter press; Said belt filter press inlet dock with sludge-tank, and its liquid phase exports and adds sour pond and enter the mouth and dock.
5. stainless steel smelting according to claim 1 and 2 and ordinary steel are smelted shared two-stage dust removal system; It is characterized in that: said ordinary steel is smelted the sewage disposal branch road and is comprised the red soil sedimentation basin that docks with said sewage aqueduct outlet by means of second valve, docks cesspool, slush pump, vertical precipitator tower, muddy water pond, feed pump and reuse dust pelletizing system successively with red soil sedimentation basin liquid phase export mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200513051U CN202410470U (en) | 2012-02-17 | 2012-02-17 | Secondary dust removal system shared by stainless steel smelting and plain steel smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200513051U CN202410470U (en) | 2012-02-17 | 2012-02-17 | Secondary dust removal system shared by stainless steel smelting and plain steel smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202410470U true CN202410470U (en) | 2012-09-05 |
Family
ID=46735269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200513051U Withdrawn - After Issue CN202410470U (en) | 2012-02-17 | 2012-02-17 | Secondary dust removal system shared by stainless steel smelting and plain steel smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202410470U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553387A (en) * | 2012-02-17 | 2012-07-11 | 新兴铸管股份有限公司 | Secondary dust removal system for stainless steel smelting and ordinary steel smelting |
| CN107445361A (en) * | 2017-08-02 | 2017-12-08 | 奇瑞汽车股份有限公司 | One kind spray painting circular water treating system and its purification technique |
| CN108609749A (en) * | 2018-04-03 | 2018-10-02 | 陈锦文 | The method that dust waste water of converter is recycled with sulfate process titanium dioxide byproduct |
-
2012
- 2012-02-17 CN CN2012200513051U patent/CN202410470U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553387A (en) * | 2012-02-17 | 2012-07-11 | 新兴铸管股份有限公司 | Secondary dust removal system for stainless steel smelting and ordinary steel smelting |
| CN102553387B (en) * | 2012-02-17 | 2014-05-07 | 新兴铸管股份有限公司 | Secondary dust removal system for stainless steel smelting and ordinary steel smelting |
| CN107445361A (en) * | 2017-08-02 | 2017-12-08 | 奇瑞汽车股份有限公司 | One kind spray painting circular water treating system and its purification technique |
| CN108609749A (en) * | 2018-04-03 | 2018-10-02 | 陈锦文 | The method that dust waste water of converter is recycled with sulfate process titanium dioxide byproduct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |