CN106221819A - A kind of blast furnace gas pocket type dust removing device - Google Patents
A kind of blast furnace gas pocket type dust removing device Download PDFInfo
- Publication number
- CN106221819A CN106221819A CN201610769893.5A CN201610769893A CN106221819A CN 106221819 A CN106221819 A CN 106221819A CN 201610769893 A CN201610769893 A CN 201610769893A CN 106221819 A CN106221819 A CN 106221819A
- Authority
- CN
- China
- Prior art keywords
- filter bag
- blast furnace
- filter
- bag
- furnace gas
- Prior art date
- 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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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/65—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the sterilisation of air
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses a kind of blast furnace gas pocket type dust removing device, including upper box and lower box；Upper box is separated by filter with lower box；Lower box side is provided with air inlet, and lower section is provided with ash bucket；Being provided with the gravitational precipitator being connected with air inlet in lower box, the gas outlet of gravitational precipitator is connected with cooler；Upper box top is provided with air outlet and maintenance door, is internally provided with defecator.The present invention arranges filter bag by horizontal tilt, horizontal tilt angle is 30～45 °, and at filter bag surface-coated super-hydrophobic coat, the filter bag making this structure improves the filter effect of coal gas, make the heavy grain on filter bag surface just can directly filter bag surface landing without deashing device, improve the life-span of filter bag, it is to avoid filter bag surface sunk grain blocking；The aperture of the some filter bags arranged from down to up is sequentially reduced so that filter bag can retain the granule of different-grain diameter, improves filter effect so that the blast furnace gas after purification, meets state environmental emissioning standard.
Description
Technical field
The present invention relates to exhaust dust device with bag field, particularly relate to a kind of blast furnace gas pocket type dust removing device.
Background technology
In smelting process, blast furnace produces a large amount of containing CO and the high temperature raw coke oven gas of dust, its calorific value typically 2000～
3100 kilocalories/m3, belong to low-heat value gas, become the secondary energy sources that iron and steel enterprise is important as coal gas of converter, if do not controlled
Environment is i.e. polluted in reason and recovery, harm physical and mental health wastes again the energy.Existing blast furnace mostly use rich support coal powder injection, humidification air blast with
Strengthening smelting, coal gas contains relatively juicy, and blast furnace blower is all through particular design, and power is big, and pressure is high.But charge composition and
When quality generation fluctuation causes the working of a furnace to fluctuate, its blast furnace gas flow, pressure, dust content all can occur large change, impact
The clean-up effect of blast furnace gas.Existence due to the problems referred to above so that the blast furnace gas after dust arrester purifies can not reach
State environmental emissioning standard.
Summary of the invention
In view of this, the present invention provides a kind of blast furnace gas pocket type dust removing device, it is possible to after making blast furnace gas purification, symbol
Close state environmental emissioning standard.
The technical scheme is that and be achieved in that:
A kind of blast furnace gas pocket type dust removing device, including upper box and lower box；Described upper box and described lower box by
Filter separates；
Described lower box side is provided with air inlet, and lower section is provided with ash bucket；Be provided with in described lower box with described enter
Air port connect gravitational precipitator, be provided with dust-exhausting port bottom described gravitational precipitator, top is provided with gas outlet, described in give vent to anger
Mouth is connected with cooler；
Described upper box top is provided with air outlet and maintenance door, is internally provided with defecator；Described defecator bag
The filter bag in including bag cage and being fixed on described bag cage and matched with described bag cage type shape, the quantity of described bag cage and described filter bag
Quantity identical, be 3～6；Described bag cage is from top to bottom stratified and set in described upper box；Each described equal water of bag cage
Flat dip is fixed on described top box body wall；The aperture of the described filter bag being layered setting from down to up is sequentially reduced；Described filter bag
Outer surface is coated with super-hydrophobic coat；The horizontal tilt angle of described bag cage is 30～45 °.
Preferably, described super-hydrophobic coat is made up of the silicon dioxide that Kaolin and silicon fluoride are modified, described Kaolin and
The mass ratio of the silicon dioxide that described silicon fluoride is modified is 92～96:3～5.
Preferably, described silicon fluoride is tridecafluoro-n-octyltriethoxysilane, trifluoromethyl trimethylsilane, 17 fluorine last of the ten Heavenly stems
One or more in ethyl triethoxy silicane alkane.
Preferably, the surface of described filter is provided with activated carbon adsorption layer, and the aperture of described filter is more than all described filter bags
Aperture.
Preferably, described air outlet is provided with purifier, is provided with chalk dust removing plate, except antibacterial plate in described purifier
With degasification taste plate.
Preferably, it is provided with broken bag detector in described filter bag.
Preferably, the top surface of described upper box is umbrella parabola.
The invention have the benefit that
A kind of blast furnace gas pocket type dust removing device that the present invention provides, arranges filter bag, horizontal tilt angle by horizontal tilt
Degree is 30～45 °, and at filter bag surface-coated super-hydrophobic coat so that the filter bag of this structure improves the filtration effect of blast furnace gas
Really so that the heavy grain on filter bag surface just can improve the life-span of filter bag directly from the landing of filter bag surface, keep away without deashing device
Exempt from filter bag surface sunk grain blocking；The aperture of the some filter bags arranged from down to up is sequentially reduced so that filter bag can retain not
With the granule of particle diameter, improve filter effect so that the blast furnace gas after purification, meet state environmental emissioning standard.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of blast furnace gas pocket type dust removing device of the present invention.
In figure:
1 upper box；2 lower boxes；3 filter bags；4 air outlets；5 air inlets；6 dust-exhausting ports；7 gas outlets；
8 gravitational precipitators；9 ash buckets；10 purifiers；11 filters；12 bags of cages.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, a kind of blast furnace gas pocket type dust removing device that the present invention provides, including upper box 1 and lower box 2；
Upper box 1 and lower box 2 are separated by filter 11；Lower box 2 side is provided with air inlet 5, and lower section is provided with ash bucket 9；Lower box 2
Inside being provided with the gravitational precipitator 8 being connected with air inlet 5, be provided with dust-exhausting port 6 bottom gravitational precipitator 8, top is provided with out
QI KOU 7, gas outlet 7 is connected with cooler；Upper box 1 top is provided with air outlet 4 and maintenance door, is internally provided with filtration dress
Put；The filter bag 3 closed in defecator includes bag cage 12 and is fixed on bag cage 12 and with bag cage 12 matching form, the quantity of bag cage 12
Identical with the quantity of filter bag 3, it is 3～6；Bag cage 12 is from top to bottom stratified and set in upper box 1；The each bag of equal water of cage 12
Flat dip is fixed on upper box 1 wall；The aperture of the filter bag 3 being layered setting from down to up is sequentially reduced；Filter bag 3 outer surface is all coated with
It is covered with super-hydrophobic coat；The horizontal tilt angle of bag cage 12 is 30～45 °.
In technique scheme, arranging filter bag 3 by horizontal tilt, horizontal tilt angle is 30～45 °, and at filter bag 3
Surface-coated super-hydrophobic coat so that the filter bag 3 of this structure improves the filter effect of blast furnace gas so that filter bag 3 surface
Heavy grain just can improve the life-span of filter bag 3, it is to avoid filter bag 3 surface is sunk directly from filter bag 3 surface landing without deashing device
Grain blocking；The aperture of the some filter bags 3 arranged from down to up is sequentially reduced so that filter bag 3 can retain the granule of different-grain diameter,
Improve filter effect；The setting of gravitational precipitator 8, it is possible to granule big for quality is sunk from blast furnace gas, thus improves height
The clean-up effect of producer gas.
In the present embodiment, in order to improve ash-removal effect and the service life of filter bag 3 further, super-hydrophobic coat is by height
Ridge soil and the modified silicon dioxide of silicon fluoride are constituted, the mass ratio of Kaolin and the modified silicon dioxide of silicon fluoride be (92～
96): (3～5), this super-hydrophobic coat not only low cost, and also super-hydrophobic coat is high with the adhesion strength of filter bag 3, and this coating exists
The contact angle on filter bag 3 surface is more than 158.3 °, and roll angle is less than 3.8 °.
In the present embodiment, silicon fluoride be tridecafluoro-n-octyltriethoxysilane, trifluoromethyl trimethylsilane, 17
One or more in fluorine decyl triethoxysilane.
In the present embodiment, in order to remove the harmful blast furnace gas in flue gas, the active charcoal of filter 11 surface configuration is inhaled
Attached layer, the aperture of filter 11 is more than the aperture of all filter bags 3.
In the present embodiment, in order to purify air further, air outlet 4 is provided with purifier 10, purifies
Chalk dust removing plate it is provided with, except antibacterial plate and degasification taste plate in device 10.
In the present embodiment, in order to avoid filter bag 3 is damaged, affect filter effect, in filter bag 3, be provided with broken bag detection
Instrument, is used for detecting whether filter bag 3 damaged condition occurs.
In the present embodiment, during in order to avoid outdoor placement and rainfall, upper box 1 top surface hydrops, cause filter bag 3
Soaking, affect efficiency of dust collection, the top surface of upper box 1 is umbrella parabola.
The operation principle of a kind of blast furnace gas pocket type dust removing device that the present invention provides is described in conjunction with Fig. 1, blast furnace gas by
Air inlet 5 enters in gravitational precipitator 8, after settlement section bulky grain, gas outlet 7 enters cooler, carries out blast furnace gas
Cooling, it is to avoid under the condition of high temperature, affect filter bag 3 efficiency of dust collection；In filter chamber subsequently into filter bag 3 and right by successively filter bag 3
Blast furnace gas filters, and dust is attached to filter bag 3 surface, purifies blast furnace gas and is discharged in air by air outlet 4.Along with filtration
The increase of time, the dust in gravitational precipitator 8 is continuously increased, and the filter efficiency of gravitational precipitator 8 decreases, when dedusting fills
Put resistance and rise to a setting value, for ensureing that dedusting dress works on, need to carry out deashing, the bulky grain in gravitational precipitator 8
Discharge from dust-exhausting port 6 and fall into ash bucket 9；And due to filter bag 3 horizontal tilt angle 30～45 ° and the super-hydrophobic coat on surface, make
The heavy grain obtaining filter bag 3 surface directly from landing, and can pass through the space between filter bag 3 and bag cage 12 and/or lower floor's filter bag 3 hole
Gap enters ash bucket 9.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. a blast furnace gas pocket type dust removing device, it is characterised in that include upper box (1) and lower box (2)；Described upper box
(1) separate by filter (11) with described lower box (2)；
Described lower box (2) side is provided with air inlet (5), and lower section is provided with ash bucket (9)；Described lower box is provided with in (2)
The gravitational precipitator (8) being connected with described air inlet (5), described gravitational precipitator (8) bottom is provided with dust-exhausting port (6), top
Being provided with gas outlet (7), described gas outlet (7) are connected with cooler；
Described upper box (1) top is provided with air outlet (4) and maintenance door, is internally provided with defecator；Described defecator
Including a bag cage (12) and the filter bag (3) that is fixed in described bag cage (12) and closes with described bag cage (12) matching form, described bag
The quantity of cage (12) is identical with the quantity of described filter bag (3), is 3～6；Described bag cage (12) is from top to bottom stratified and set on
In described upper box (1)；The all horizontal tilts of each described bag cage (12) are fixed on described upper box (1) wall；Divide from down to up
The aperture of the described filter bag (3) that layer is arranged is sequentially reduced；Described filter bag (3) outer surface is coated with super-hydrophobic coat；Described bag
The horizontal tilt angle of cage (12) is 30～45 °.
2. blast furnace gas pocket type dust removing device as claimed in claim 1, it is characterised in that described super-hydrophobic coat is by Kaolin
The silicon dioxide modified with silicon fluoride is constituted, and the mass ratio of the silicon dioxide of described Kaolin and the modification of described silicon fluoride is (92
～96): (3～5).
3. blast furnace gas pocket type dust removing device as claimed in claim 2, it is characterised in that described silicon fluoride is ten trifluoro octyl groups
One or more in triethoxysilane, trifluoromethyl trimethylsilane, 17 fluorine decyl triethoxysilanes.
4. blast furnace gas pocket type dust removing device as claimed in claim 1, it is characterised in that the surface of described filter (11) is provided with
Activated carbon adsorption layer, the aperture of described filter (11) is more than the aperture of all described filter bags (3).
5. blast furnace gas pocket type dust removing device as claimed in claim 1, it is characterised in that described air outlet (4) is provided with only
Gasifying device (10), is provided with chalk dust removing plate, except antibacterial plate and degasification taste plate in described purifier (10).
6. blast furnace gas pocket type dust removing device as claimed in claim 1, it is characterised in that described filter bag is provided with brokenly in (3)
Bag detector.
7. blast furnace gas pocket type dust removing device as claimed in claim 1, it is characterised in that the top table of described upper box (1)
Face is umbrella parabola.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769893.5A CN106221819B (en) | 2016-08-29 | 2016-08-29 | A kind of blast furnace gas pocket type dust removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769893.5A CN106221819B (en) | 2016-08-29 | 2016-08-29 | A kind of blast furnace gas pocket type dust removing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106221819A true CN106221819A (en) | 2016-12-14 |
| CN106221819B CN106221819B (en) | 2019-02-19 |
Family
ID=58072351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610769893.5A Active CN106221819B (en) | 2016-08-29 | 2016-08-29 | A kind of blast furnace gas pocket type dust removing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106221819B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059564A (en) * | 2022-07-18 | 2022-09-16 | 河海大学 | Dust-removing and water-removing air inlet pipe installed on air filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10216440A (en) * | 1997-02-07 | 1998-08-18 | Mitsubishi Heavy Ind Ltd | Bag filter |
| CN101244356A (en) * | 2008-03-24 | 2008-08-20 | 贵阳铝镁设计研究院 | Combined purifying method and device |
| CN103305122A (en) * | 2013-07-03 | 2013-09-18 | 华北电力大学 | Montmorillonite-silicon dioxide super-hydrophobic coating and preparation method thereof |
| CN103372361A (en) * | 2013-08-09 | 2013-10-30 | 张家港市盛港绿色防火建材有限公司 | Single pulse bag type dust collector |
| CN205287913U (en) * | 2016-01-26 | 2016-06-08 | 浙江蓝威环保科技设备有限公司 | Horizontal distribution pulse bag dust collector |
-
2016
- 2016-08-29 CN CN201610769893.5A patent/CN106221819B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10216440A (en) * | 1997-02-07 | 1998-08-18 | Mitsubishi Heavy Ind Ltd | Bag filter |
| CN101244356A (en) * | 2008-03-24 | 2008-08-20 | 贵阳铝镁设计研究院 | Combined purifying method and device |
| CN103305122A (en) * | 2013-07-03 | 2013-09-18 | 华北电力大学 | Montmorillonite-silicon dioxide super-hydrophobic coating and preparation method thereof |
| CN103372361A (en) * | 2013-08-09 | 2013-10-30 | 张家港市盛港绿色防火建材有限公司 | Single pulse bag type dust collector |
| CN205287913U (en) * | 2016-01-26 | 2016-06-08 | 浙江蓝威环保科技设备有限公司 | Horizontal distribution pulse bag dust collector |
Non-Patent Citations (1)
| Title |
|---|
| 王永忠、宋七棣编著: "《电炉炼钢除尘》", 30 September 2003, 北京：冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059564A (en) * | 2022-07-18 | 2022-09-16 | 河海大学 | Dust-removing and water-removing air inlet pipe installed on air filter |
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| Publication number | Publication date |
|---|---|
| CN106221819B (en) | 2019-02-19 |
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