CN106221819B - 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
- CN106221819B CN106221819B CN201610769893.5A CN201610769893A CN106221819B CN 106221819 B CN106221819 B CN 106221819B CN 201610769893 A CN201610769893 A CN 201610769893A CN 106221819 B CN106221819 B CN 106221819B
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- China
- Prior art keywords
- filter
- filter bag
- blast furnace
- bag
- furnace gas
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Classifications
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- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a kind of blast furnace gas pocket type dust removing devices, including upper box and lower box；Upper box and lower box are separated by filter；Lower box side is provided with air inlet, and lower section is provided with ash bucket；The gravitational precipitator connecting with air inlet is provided in lower box, the gas outlet of gravitational precipitator is connect with cooler；It is provided with air outlet and maintenance door at the top of upper box, is internally provided with filter device.Filter bag is arranged by horizontal tilt in the present invention, horizontal tilt angle is 30~45 °, and super-hydrophobic coat is coated in filter bag surface, so that the filter bag of the structure improves the filter effect of coal gas, so that the heavy grain of filter bag surface can directly filter bag surface slide without deashing device, the service life for improving filter bag avoids filter bag surface from being blocked by heavy grain；The aperture for several filter bags being arranged from bottom to top is sequentially reduced, and filter bag is enabled to retain the particle of different-grain diameter, filter effect is improved, so that purified blast furnace gas, meets state environmental emissioning standard.
Description
Technical field
The present invention relates to exhaust dust device with bag field more particularly to a kind of blast furnace gas pocket type dust removing devices.
Background technique
Blast furnace generates a large amount of high temperature raw coke oven gas containing CO and dust in smelting process, calorific value generally 2000~
3100 kilocalories/m3, belong to low-heat value gas, the important secondary energy sources of iron and steel enterprise had become as coal gas of converter, if do not controlled
Reason and recycling i.e. pollution environment, the physically and mentally healthy waste of energy again of harm.Existing blast furnace mostly use rich feeding coal powder injection, humidification air blast with
Strengthening smelting, coal gas contain compared with juicy, and blast furnace blower all passes through special designing, and power is big, and pressure is high.But charge composition and
When quality generation fluctuation causes the working of a furnace to fluctuate, blast furnace gas flow, pressure, dust content can all be varied widely, and influence
The clean-up effect of blast furnace gas.Due to the above problems, can not reach the purified blast furnace gas of dust-extraction unit
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, and after enabling to blast furnace gas purification, symbol
Close state environmental emissioning standard.
The technical scheme of the present invention is realized as follows:
A kind of blast furnace gas pocket type dust removing device, including upper box and lower box；The upper box and the lower box by
Filter separation；
The lower box side is provided with air inlet, and lower section is provided with ash bucket；Be provided in the lower box with it is described into
The gravitational precipitator of air port connection, the gravitational precipitator bottom are provided with dust-exhausting port, and top is provided with gas outlet, the outlet
Mouth is connect with cooler；
It is provided with air outlet and maintenance door at the top of the upper box, is internally provided with filter device；The filter device packet
It includes bag cage and is fixed on the filter bag matched in the bag cage and with the bag cage shape, the quantity of the bag cage and the filter bag
Quantity it is identical, be 3~6；The bag cage is from top to bottom stratified and set in the upper box；Each equal water of the bag cage
Flat dip is fixed on the top box body wall；The aperture for being layered the filter bag of setting from bottom to top is sequentially reduced；The filter bag
Outer surface is coated with super-hydrophobic coat；The horizontal tilt angle of the bag cage is 30~45 °.
Preferably, the super-hydrophobic coat is made of the modified silica of kaolin and silicon fluoride, the kaolin and
The mass ratio of the modified silica of the silicon fluoride is 92~96:3~5.
Preferably, the silicon fluoride is tridecafluoro-n-octyltriethoxysilane, trifluoromethyl trimethylsilane, the 17 fluorine last of the ten Heavenly stems
One of ethyl triethoxy silicane alkane is a variety of.
Preferably, the surface of the filter is equipped with activated carbon adsorption layer, and the aperture of the filter is greater than all filter bags
Aperture.
Preferably, the air outlet is provided with purification device, chalk dust removing plate is provided in the purification device, except bacterium plate
With remove smell plate.
Preferably, broken bag detector is provided in the filter bag.
Preferably, the top surface of the upper box is umbrella paraboloid.
The invention has the benefit that
Filter bag, horizontal tilt angle is arranged by horizontal tilt in a kind of blast furnace gas pocket type dust removing device provided by the invention
Degree is 30~45 °, and coats super-hydrophobic coat in filter bag surface, so that the filter bag of the structure improves the filtering effect of blast furnace gas
Fruit improves the service life of filter bag, keeps away so that the heavy grain of filter bag surface can directly slide from filter bag surface without deashing device
Exempt from filter bag surface to be blocked by heavy grain；The aperture for several filter bags being arranged from bottom to top is sequentially reduced, and filter bag is retained not
With the particle of partial size, filter effect is improved, so that purified blast furnace gas, meets state environmental emissioning standard.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram 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-purification devices；11-filters；12-bag cages.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of blast furnace gas pocket type dust removing device provided by the invention, including upper box 1 and lower box 2；
Upper box 1 and lower box 2 are separated by filter 11；2 side of lower box is provided with air inlet 5, and lower section is provided with ash bucket 9；Lower box 2
It is inside provided with the gravitational precipitator 8 connecting with air inlet 5,8 bottom of gravitational precipitator is provided with dust-exhausting port 6, and top is provided with out
Port 7, gas outlet 7 are connect with cooler；It is provided with air outlet 4 and maintenance door at the top of upper box 1, is internally provided with filtering dress
It sets；Filter device includes bag cage 12 and is fixed on the filter bag 3 matched in bag cage 12 and with 12 shape of bag cage, the quantity of bag cage 12
It is identical as 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 equal water of each bag cage 12
Flat dip is fixed on 1 wall of upper box；The aperture for being layered the filter bag 3 of setting from bottom to top is sequentially reduced；3 outer surface of filter bag applies
It is covered with super-hydrophobic coat；The horizontal tilt angle of bag cage 12 is 30~45 °.
In above-mentioned technical proposal, filter bag 3 is arranged by horizontal tilt, horizontal tilt angle is 30~45 °, and in filter bag 3
Surface coats super-hydrophobic coat, so that the filter bag 3 of the structure improves the filter effect of blast furnace gas, so that 3 surface of filter bag
Heavy grain can directly slide from 3 surface of filter bag without deashing device, improve the service life of filter bag 3,3 surface of filter bag is avoided to be sunk
Grain blocking；The aperture for several filter bags 3 being arranged from bottom to top is sequentially reduced, and filter bag 3 is enabled to retain the particle of different-grain diameter,
Improve filter effect；The setting of gravitational precipitator 8 can sink the big particle of quality, from blast furnace gas to improve height
The clean-up effect of producer gas.
In the present embodiment, in order to further increase the service life of ash-removal effect and filter bag 3, super-hydrophobic coat is by height
The modified silica of ridge soil and silicon fluoride is constituted, the mass ratio of kaolin and the modified silica of silicon fluoride be (92~
96): (3~5), the super-hydrophobic coat is not only at low cost, but also the adhesion strength of super-hydrophobic coat and filter bag 3 is high, which exists
For the contact angle on 3 surface of filter bag at 158.3 ° or more, roll angle is lower than 3.8 °.
In the present embodiment, silicon fluoride is tridecafluoro-n-octyltriethoxysilane, trifluoromethyl trimethylsilane, 17
One of fluorine ruthenium triethoxysilane is a variety of.
In the present embodiment, in order to remove harmful blast furnace gas in flue gas, 11 surface of filter is provided with active carbon suction
Attached layer, the aperture of filter 11 are greater than the aperture of all filter bags 3.
In the present embodiment, in order to further purify to air, air outlet 4 is provided with purification device 10, purification
Chalk dust removing plate is provided in device 10, except bacterium plate and except smell plate.
In the present embodiment, in order to avoid filter bag 3 is damaged, filter effect is influenced, broken bag detection is provided in filter bag 3
Instrument, for detecting whether filter bag 3 damaged condition occurs.
When in the present embodiment, in order to avoid outdoor placement and rainfall, 1 top surface ponding of upper box leads to filter bag 3
It soaks, influences efficiency of dust collection, the top surface of upper box 1 is umbrella paraboloid.
Be illustrated with reference to Fig. 1 a kind of working principle of blast furnace gas pocket type dust removing device provided by the invention, blast furnace gas by
Air inlet 5 enters in gravitational precipitator 8, after settlement section bulky grain, enters cooler by gas outlet 7, carries out to blast furnace gas
Cooling, avoids under the condition of high temperature, influences 3 efficiency of dust collection of filter bag；Subsequently into the filter chamber of filter bag 3, and it is right by layer-by-layer filter bag 3
Blast furnace gas is filtered, and dust is attached to 3 surface of filter bag, and purification blast furnace gas is discharged in atmosphere by air outlet 4.With filtering
The increase of time, the dust in gravitational precipitator 8 are continuously increased, and the filter efficiency of gravitational precipitator 8 decreases, when dedusting fills
It sets resistance and rises to a setting value, to guarantee that dedusting dress works on, need to carry out deashing, the bulky grain in gravitational precipitator 8
Ash bucket 9 is fallen into from the discharge of dust-exhausting port 6；And due to 30~45 ° of 3 horizontal tilt angle of filter bag and its super-hydrophobic coat on surface, make
The heavy grain for obtaining 3 surface of filter bag can be directly from landing, and passes through 3 hole of gap and/or lower layer's filter bag between filter bag 3 and bag cage 12
Gap enters ash bucket 9.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of blast furnace gas pocket type dust removing device, which is characterized in that including upper box (1) and lower box (2)；The upper box
(1) it is separated with the lower box (2) by filter (11)；
Lower box (2) side is provided with air inlet (5), and lower section is provided with ash bucket (9)；It is provided in the lower box (2)
The gravitational precipitator (8) connecting with the air inlet (5), gravitational precipitator (8) bottom are provided with dust-exhausting port (6), top
It is provided with gas outlet (7), the gas outlet (7) connect with cooler；
It is provided with air outlet (4) and maintenance door at the top of the upper box (1), is internally provided with filter device；The filter device
Including bag cage (12) and it is fixed on the filter bag (3) matched in the bag cage (12) and with the bag cage (12) shape, the bag
The quantity of cage (12) is identical as the quantity of the filter bag (3), is 3~6；The bag cage (12) is from top to bottom stratified and set on
In the upper box (1)；The horizontal tilt of each bag cage (12) is fixed on the upper box (1) wall；Divide from bottom to top
The aperture of the filter bag (3) of layer setting is sequentially reduced；Filter bag (3) outer surface is coated with super-hydrophobic coat；The bag
The horizontal tilt angle of cage (12) is 30~45 °.
2. blast furnace gas pocket type dust removing device as described in claim 1, which is characterized in that the super-hydrophobic coat is by kaolin
It is constituted with the modified silica of silicon fluoride, the mass ratio for the silica that the kaolin and the silicon fluoride are modified is (92
~96): (3~5).
3. blast furnace gas pocket type dust removing device as claimed in claim 2, which is characterized in that the silicon fluoride is ten trifluoro octyls
One of triethoxysilane, trifluoromethyl trimethylsilane, heptadecafluorodecyl triethoxysilane are a variety of.
4. blast furnace gas pocket type dust removing device as described in claim 1, which is characterized in that the surface of the filter (11) is equipped with
Activated carbon adsorption layer, the aperture of the filter (11) are greater than the aperture of all filter bags (3).
5. blast furnace gas pocket type dust removing device as described in claim 1, which is characterized in that the air outlet (4) is provided with only
Makeup is set (10), chalk dust removing plate is provided in the purification device (10), except bacterium plate and except smell plate.
6. blast furnace gas pocket type dust removing device as described in claim 1, which is characterized in that be provided with brokenly in the filter bag (3)
Bag detector.
7. blast furnace gas pocket type dust removing device as described in claim 1, which is characterized in that the top table of the upper box (1)
Face is umbrella paraboloid.
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 CN106221819A (en) | 2016-12-14 |
| CN106221819B true CN106221819B (en) | 2019-02-19 |
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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 |
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Families Citing this family (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 |
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| Publication number | Publication date |
|---|---|
| CN106221819A (en) | 2016-12-14 |
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