CN113318541A - Rolling mill flue gas ultralow emission purifier - Google Patents
Rolling mill flue gas ultralow emission purifier Download PDFInfo
- Publication number
- CN113318541A CN113318541A CN202110734837.9A CN202110734837A CN113318541A CN 113318541 A CN113318541 A CN 113318541A CN 202110734837 A CN202110734837 A CN 202110734837A CN 113318541 A CN113318541 A CN 113318541A
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- CN
- China
- Prior art keywords
- flue gas
- interception
- otter board
- rolling mill
- chimney
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of flue gas purification devices, in particular to a rolling mill flue gas ultralow emission purification device which comprises a treatment tank, a fan and a chimney, the two ends of the treatment tank are respectively provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with a dust removal outer net pipeline, the smoke outlet is communicated with the chimney through an air pipe and a fan, and in view of large particle size distribution range of field emission particles and even submicron-level particles, a multi-layer base material combination design of a wire mesh with different pore sizes is required to be selected, on the basis of guaranteeing interception efficiency, compromise the production of avoiding the flooding phenomenon, compromise the whole loss of pressure of this silk screen defroster, design for the multistage silk screen combination in 2+2+4 different apertures, form "multistage dust remover", use particle diameter to increase otter board, condense interception otter board and defogging interception otter board, can effectively realize removing dust the ultralow emission of back flue gas.
Description
Technical Field
The invention relates to the technical field of flue gas purification devices, in particular to a rolling mill flue gas ultralow emission purification device.
Background
The hot rolling production process of metallurgical enterprises produces a large amount of ferric oxide powder, oil mist, water vapor, flue gas and the like, if unorganized emission will seriously pollute the environment, how to collect, purify and discharge the flue gas of a roughing mill, a finishing mill and a temper mill to reach the emission standard is the continuous work of each enterprise all the time. Except following the national unified standard, the requirements of government departments in various regions are different, but the dust removal of pollution source points is upgraded and modified, the flue gas capture rate is improved, the fine environmental management is developed, the stable standard-reaching emission of pollutants is ensured, and the method is a difficult problem to be solved urgently by various enterprises.
At present, the dust removal of rolling mills of various iron and steel companies mostly adopts a method of a plastic burning plate dust remover, a dust removal system mainly comprises a dust hood, a dust suction pipeline, the plastic burning plate dust remover, a fan, a chimney and the like, the problems of aging and blockage of the plastic burning plate exist in the operation process of the system, the operation resistance is greatly increased, the post working condition environment is extremely poor, part of the plastic burning plate can only be forcedly removed to reduce the resistance, the plastic burning plate is replaced newly, the investment cost is high, the production operation cost and the labor intensity of enterprises are increased, the post working condition environment cannot be thoroughly changed, the current environmental protection policy is difficult to meet, and the standard emission requirement of ultralow emission is realized.
Disclosure of Invention
The invention aims to solve the defects that the prior art is difficult to meet the current environmental protection policy and the like, and provides a device for purifying the rolling mill with ultralow emission of flue gas.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a rolling mill flue gas minimum discharge purifier, includes processing jar, fan and chimney, the both ends of processing jar are provided with respectively into mouth and outlet flue, it has the dust removal outer net pipeline to advance the intercommunication on the mouth, the outlet flue pass through tuber pipe and fan with the chimney intercommunication, the inside of processing jar has set gradually baffling board, particle size growth otter board, has coagulated interception otter board and defogging interception otter board from a left side to the right side, it is provided with two sets ofly to coagulate the interception otter board.
Preferably, the particle size growth net plates are provided in two groups.
Preferably, four groups of the defogging intercepting screen plates are arranged.
Preferably, the mesh apertures of the particle growth screen plate, the condensation interception screen plate and the demisting interception screen plate are different.
The invention provides a rolling mill flue gas ultralow emission purification device, which has the beneficial effects that: in view of the field emission particle size distribution scope is very big, contain submicron level's particulate matter even, consequently need select the different silk screen multilayer substrate integrated design of aperture size for use, on the basis of guaranteeing interception efficiency, compromise the production of avoiding the flooding phenomenon, compromise the whole loss of pressure of this silk screen defroster, the design is the multistage silk screen combination in 2+2+4 different apertures, form "multistage dust remover", use particle size growth otter board, condense interception otter board and defogging interception otter board, can effectively realize the ultralow emission of flue gas after the dust removal, can not only make the dust removal effect reach ultralow emission, the resistance is little, long service life, and the device still has the construction cost few, the advantage that working costs and maintenance cost are low.
Drawings
Fig. 1 is a schematic structural diagram of a rolling mill flue gas ultra-low emission purification device provided by the invention.
In the figure: 1. a treatment tank; 2. a fan; 3. a chimney; 4. a baffle plate; 5. a particle size increasing screen plate; 6. a condensation interception screen plate; 7. a demisting interception screen plate; 8. dust removal outer net pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a rolling mill flue gas ultra-low emission purifier, including processing jar 1, fan 2 and chimney 3, the both ends of processing jar 1 are provided with respectively into smoke mouth and outlet flue, it has dust removal outer net pipeline 8 to feed into the intercommunication on the smoke mouth, the outlet flue passes through tuber pipe and fan 2 and chimney 3 intercommunication, the inside of processing jar 1 has set gradually baffling board 4 from a left side to the right side, particle size growth otter board 5, it intercepts otter board 6 and defogging otter board 7 to condense, it is provided with two sets ofly to intercept otter board 6, particle size growth otter board 5 is provided with two sets ofly, defogging interception otter board 7 is provided with four sets.
During the use, through docking metallurgical flue gas with the outer net pipe 8 of removing dust of processing jar 1, carry out multi-stage filtration through baffling board 4, granule growth otter board 5, condensation interception otter board 6 and defogging interception otter board 7 that set up to the flue gas, send into in the chimney 3 through fan 2 at last the filterable flue gas and discharge to the realization is to metallurgical flue gas's purification treatment.
The mesh apertures of the particle growth screen plate 5, the condensation interception screen plate 6 and the demisting interception screen plate 7 are different, a plurality of demister combinations in particle size ranges are formed according to the particle size of the particles, the particles with small particle sizes can be intercepted, and the efficiency is high.
Compared with the dust remover in the prior art, the comparative data shown in the table are obtained by the summary of the applicant in the actual production process;
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a rolling mill flue gas minimum discharge purifier, includes treatment tank (1), fan (2) and chimney (3), its characterized in that: the both ends of processing jar (1) are provided with into mouth and outlet flue respectively, it has dust removal outer net pipeline (8) to advance the intercommunication on the mouth, the outlet flue pass through tuber pipe and fan (2) with chimney (3) intercommunication, the inside of processing jar (1) has set gradually baffling board (4), particle size growth otter board (5), coagulation interception otter board (6) and defogging interception otter board (7) from a left side to the right side, coagulation interception otter board (6) are provided with two sets ofly.
2. The rolling mill flue gas ultra-low emission purification device of claim 1, wherein: two groups of particle size increasing mesh plates (5) are arranged.
3. The rolling mill flue gas ultra-low emission purification device of claim 2, wherein: four groups of demisting intercepting screen plates (7) are arranged.
4. The rolling mill flue gas ultra-low emission purification device of claim 3, wherein: the mesh apertures of the particle growth screen plate (5), the agglomeration interception screen plate (6) and the demisting interception screen plate (7) are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734837.9A CN113318541A (en) | 2021-06-30 | 2021-06-30 | Rolling mill flue gas ultralow emission purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734837.9A CN113318541A (en) | 2021-06-30 | 2021-06-30 | Rolling mill flue gas ultralow emission purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113318541A true CN113318541A (en) | 2021-08-31 |
Family
ID=77425228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110734837.9A Withdrawn CN113318541A (en) | 2021-06-30 | 2021-06-30 | Rolling mill flue gas ultralow emission purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113318541A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170054A (en) * | 1997-12-11 | 1999-06-29 | Yoshihisa Hayakawa | Fume, gas treatment method in shielded gas arc welding |
| CN101121091A (en) * | 2006-08-10 | 2008-02-13 | 李泽清 | Composite type filter |
| CN204601915U (en) * | 2015-03-25 | 2015-09-02 | 云南亚太环境工程设计研究有限公司 | A kind of fume desulfurizing tower with demister |
| CN206810001U (en) * | 2017-05-10 | 2017-12-29 | 江苏科行环保科技有限公司 | A kind of flue gas fine particle and aerosol control device |
| CN207786313U (en) * | 2017-09-28 | 2018-08-31 | 北京长信太和节能科技有限公司 | Smoke multistage high-effective dust-removing demister |
-
2021
- 2021-06-30 CN CN202110734837.9A patent/CN113318541A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170054A (en) * | 1997-12-11 | 1999-06-29 | Yoshihisa Hayakawa | Fume, gas treatment method in shielded gas arc welding |
| CN101121091A (en) * | 2006-08-10 | 2008-02-13 | 李泽清 | Composite type filter |
| CN204601915U (en) * | 2015-03-25 | 2015-09-02 | 云南亚太环境工程设计研究有限公司 | A kind of fume desulfurizing tower with demister |
| CN206810001U (en) * | 2017-05-10 | 2017-12-29 | 江苏科行环保科技有限公司 | A kind of flue gas fine particle and aerosol control device |
| CN207786313U (en) * | 2017-09-28 | 2018-08-31 | 北京长信太和节能科技有限公司 | Smoke multistage high-effective dust-removing demister |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210831 |
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| WW01 | Invention patent application withdrawn after publication |