CN220951875U - Full-dry method purification system for converter flue gas - Google Patents
Full-dry method purification system for converter flue gas Download PDFInfo
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- CN220951875U CN220951875U CN202322555252.8U CN202322555252U CN220951875U CN 220951875 U CN220951875 U CN 220951875U CN 202322555252 U CN202322555252 U CN 202322555252U CN 220951875 U CN220951875 U CN 220951875U
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- communication device
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- 238000000746 purification Methods 0.000 title claims abstract description 77
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000003546 flue gas Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 68
- 238000004891 communication Methods 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000008016 vaporization Effects 0.000 claims abstract description 9
- 238000009834 vaporization Methods 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 5
- 238000009792 diffusion process Methods 0.000 claims abstract description 4
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 24
- 239000012717 electrostatic precipitator Substances 0.000 claims description 8
- 239000003517 fume Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000005108 dry cleaning Methods 0.000 claims 6
- 230000007547 defect Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000009628 steelmaking Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a full-dry method purification system for converter flue gas, which comprises a first communication device, an ash conveying chain, a waste heat boiler, a plurality of metal film dust collectors connected in parallel and a second communication device which are sequentially communicated; the first communication device is communicated with the output end of the vaporization cooling flue of the existing purification system; the waste heat boiler cools the converter smoke; filter elements made of metal filter materials are arranged in each metal film dust remover to remove dust from converter flue gas; the output end of the final metal film dust remover is communicated with the output end of a dust removing device of the existing purifying system, and the flow direction of the converter flue gas after dust removal of the existing purifying system is the same as that of the converter flue gas after dust removal of the existing purifying system, so that the recovery or the diffusion of the converter flue gas after dust removal is realized. The utility model can be used in parallel with the existing converter flue gas purification system to realize the improvement of the existing purification process and overcome the inherent defects thereof.
Description
Technical Field
The utility model relates to the technical field of flue gas purification, in particular to a full-dry method purification system for converter flue gas.
Background
The converter steelmaking uses molten iron, scrap steel and ferroalloy as main raw materials, and the steelmaking process is completed in the converter without using external energy sources by utilizing the physical heat of molten iron and the heat generated by chemical reaction between molten iron components. When the converter steelmaking, a large amount of high-temperature, toxic and high-dust-content primary flue gas (gas) (hereinafter referred to as converter flue gas) is generated, and the main components of the converter steelmaking are carbon monoxide and various dust particle pollutants (such as iron, manganese, silicon, calcium, magnesium and the like). The current converter flue gas purification process mainly comprises a dry method and a wet method, wherein a LT dry method and a tower wet method purification system are more commonly used.
The 'LT dry method' purification process is that high temperature flue gas at 1200-1300 ℃ is cooled to about 800-1000 ℃ through a vaporization flue, then enters an evaporative cooler and is cooled to 200-300 ℃ by atomized water, and most coarse particles in the flue gas are intercepted; the flue gas then enters a cylindrical electrostatic precipitator, and fine particles in the flue gas are enriched on a polar plate of the electrostatic precipitator for removal due to the effect of dust charge; after electrostatic dust removal, the flue gas enters a diffusing cup valve or a recycling cup valve under the suction of a gas induced draft fan, qualified gas is recycled to a gas holder, and unqualified gas is diffused to the atmosphere through a chimney. The defects of the "LT dry" purification process are:
(1) Although the system has small resistance, saves electricity, does not need dedusting water and a sewage treatment system, the converter flue gas needs to be cooled to below 70 ℃ before entering a gas cabinet, a gas cooler needs to be arranged, and a small amount of dust contained in the gas cooling water can be recycled after being treated, so that a set of circulating water treatment system is still needed;
(2) The requirements on equipment type selection, manufacturing and installation, automation control level, staff technical level, operation system implementation level and the like are high; the method has the characteristics of high operation difficulty and high risk degree, so the method has higher requirements on equipment type selection, manufacturing, installation and automatic control;
(3) The electric dust remover is easy to explode, and can form vicious circle, thereby being unfavorable for production safety;
(4) The purification effect is unstable because the electrode is easy to scale, the temperature of the flue gas is not raised to the temperature of water spraying when blowing is just started, and the like;
(5) In order to reduce explosion phenomenon, oxygen and CO must be controlled to be not mixed, oxygen blowing intensity needs to be controlled during start-up and stop-up, production rhythm can be influenced, and smelting time is long;
(6) The polar plate, the polar line, the chain, the wheel axle and other accessories of the ash conveying system have short service life, need to be replaced regularly and have high replacement cost;
(7) Sensible heat of the converter flue gas is not effectively utilized.
The 'tower Wen Shifa' purifying process is to cool the high temperature fume of 1200-1300 deg.c to 800-1000 deg.c in the vaporizing flue, and to spray cooling tower to below 70 deg.c after being atomized water cooled, where most coarse grains are intercepted; the flue gas then enters a circular seam venturi tube for fine dust removal, wherein residual coarse and fine particles and most of fine particles are removed; the flue gas further enters a cyclone dehydrator to remove entrained moisture; and finally, the flue gas enters a three-way valve or a water seal check valve under the suction of a gas induced draft fan, qualified gas is recovered to a gas tank, and unqualified gas is diffused to the atmosphere through a chimney. The 'tower Wen Shifa' purification process has mature technology, simple operation, safety and reliability, but also has the defects:
(1) The purification effect can be influenced by other factors such as a fan, a turbid circulating water system, a converter system and the like;
(2) A sewage treatment system is required;
(3) The resistance of the whole system is large, and the fan needs to adopt a high-pressure fan, so that water and electricity are wasted, and the energy is greatly consumed;
(4) Sensible heat of the converter flue gas is not effectively utilized.
Meanwhile, as the flue gas amount of converter steelmaking is large and fluctuation is large, dust removal effect is difficult to ensure, and the two purification processes often have the phenomenon of exceeding standard discharge of the particulate matters of the diffusing chimney.
Disclosure of utility model
The utility model aims to provide a full-dry method purification system for converter flue gas, which solves the problems existing in the prior art, and can be used in parallel with the existing converter flue gas purification system to realize improvement of the existing purification process and overcome the inherent defects of the existing purification process.
In order to achieve the above object, the solution of the present utility model is:
The full-dry method purification system for the converter flue gas comprises a first communication device, an ash conveying chain, a waste heat boiler, a plurality of metal film dust collectors connected in parallel and a second communication device which are communicated in sequence; the first communication device is communicated with the output end of the vaporization cooling flue of the existing purification system; the waste heat boiler cools the converter smoke; filter elements made of metal filter materials are arranged in each metal film dust remover to remove dust from converter flue gas; the output end of the final metal film dust remover is communicated with the output end of a dust removing device of the existing purifying system, and the flow direction of the converter flue gas after dust removal of the existing purifying system is the same as that of the converter flue gas after dust removal of the existing purifying system, so that the recovery or the diffusion of the converter flue gas after dust removal is realized.
The existing purification system is an LT dry purification system or a tower wet purification system, and correspondingly, the dust removing device b is an electrostatic precipitator or a circular slit venturi tube.
Preferably, the first communication device is a three-way cut-off valve with 1 input end and 2 output ends, the input end of the first communication device is communicated with the output end of the vaporization cooling flue, and the output end of the first communication device is respectively communicated with the ash conveying chain and an evaporative cooler of the LT dry purification system or a spray cooling tower of the tower wet purification system.
Preferably, when the existing purification system is an LT dry purification system, the system further comprises a second communication device, the second communication device is a three-way cut-off valve with 2 input ends and 1 output end, the input ends of the second communication device are respectively communicated with the output end of the metal film dust remover and the output end of the electrostatic precipitator, and the output end of the second communication device is communicated with a gas induced draft fan of the LT dry purification system.
Preferably, when the existing purification system is a tower wet purification system, the output end of the metal film dust remover is communicated to a cyclone dehydrator of the tower wet purification system.
The metal filter material is sintered dust felt or sintered fiber felt.
The metal film dust remover is cylindrical and vertically installed, and the lower end of the metal film dust remover is provided with an ash discharging valve.
After the technical scheme is adopted, the utility model has the following technical effects:
① The utility model can optimize the existing purification system of the converter flue gas, and is used in parallel with the existing purification system, so that the purification systems are mutually standby, and sufficient guarantee is provided for the smooth production of the steelmaking converter;
② The sensible heat of the converter flue gas (coal gas) can be fully utilized through the waste heat boiler;
③ The metal film dust remover has good conductivity and sealing property, is not easy to leak gas and explode, is beneficial to safe production, has stable purification effect, can reliably reduce the dust content of the converter flue gas, and reaches the emission standard;
④ The utility model does not need a sewage treatment system, reduces the resistance of the whole system, greatly reduces the operation energy and achieves the aims of energy conservation and environmental protection.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
reference numerals illustrate:
1- - -a first communication device; 2- - -ash conveying chain; 3- -an exhaust heat boiler; 4- -a metal film dust remover; 41- - -an ash valve; 5- - -a second communication means;
a— a vaporization cooling flue; b- -a dust removal device; c- -an evaporative cooler; d- -spray cooling tower; e-a gas induced draft fan; f- -a diffusing cup valve; g- -a recovery cup valve; h-diffusing an ignition chimney; i— flue gas coolers; j-a converter fume chamber; k-a cyclone dehydrator; l- -three-way valve; m-water seal check valve.
Detailed Description
In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Accordingly, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the inventive product is used, or the orientation or positional relationship conventionally understood by those skilled in the art, is merely for convenience in describing the embodiments of the present utility model, and is not intended to indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 and 2, the utility model discloses a full-dry method purification system for converter flue gas, which comprises a first communication device 1, an ash conveying chain 2, a waste heat boiler 3, a plurality of metal film dust collectors 4 and a second communication device 5 which are sequentially communicated;
The first communication device 1 is communicated with the output end of the vaporization cooling flue a of the existing purification system;
the waste heat boiler 3 cools the converter flue gas, cools the temperature from 800-1000 ℃ to 200-300 ℃ and simultaneously produces water vapor;
Each metal film dust remover 4 is internally provided with a filter element made of metal filter materials, and high-precision dust removal is carried out on converter smoke;
The output end of the final metal film dust remover 4 is communicated with the output end of a dust removing device b of the existing purification system, and the flow direction of the converter flue gas after dust removal of the existing purification system is the same as that of the converter flue gas after dust removal of the existing purification system, so that the recovery or the diffusion of the converter flue gas after dust removal is realized.
In some embodiments of the present utility model, the existing purification system may be an LT dry purification system or a tower wet purification system, and the dust removing device b is an electrostatic precipitator or a circular slit venturi.
Further, the first communication device 1 is a three-way cut-off valve having 1 input end and 2 output ends, the input end of the first communication device 1 is communicated with the output end of the evaporative cooling flue a, the output end of the first communication device 1 is respectively communicated with the ash conveying chain 2, and the evaporative cooler c of the LT dry purification system or the spray cooling tower d of the tower wet purification system.
In some embodiments of the utility model, the metal filter material may be a sintered dust felt or a sintered fiber felt.
In some embodiments of the present utility model, the metal film dust collector 4 is cylindrical and installed vertically, and has a dust discharging valve 41 at its lower end for controllably outputting dust filtered and intercepted by the metal filter material, so as to facilitate periodic cleaning.
Referring to fig. 1, a first embodiment of the present utility model is shown.
In the first embodiment, the existing purification system is an LT dry purification system, and the dust removing device b is an electrostatic precipitator.
In the first embodiment, the system further comprises a second communication device 5, the second communication device 5 is a three-way cut-off valve with 2 input ends and 1 output end, the input ends of the second communication device 5 are respectively communicated with the output end of the metal film dust remover 4 and the output end of the electrostatic dust remover, and the output end of the second communication device 5 is communicated with a gas induced draft fan e of the LT dry purification system.
Further, the output end of the gas induced draft fan e is respectively connected to a diffusing cup valve f or a recycling cup valve g, the diffusing cup valve f is connected to a diffusing ignition chimney h, the recycling cup valve g is connected to a flue gas cooler i, and the flue gas cooler i is connected to a converter flue gas cabinet j (this is a part of the prior art of the LT dry purification system, which is already quite mature and will not be described herein).
Referring to fig. 2, a second embodiment of the present utility model is shown.
In the second embodiment, the existing purification system is a tower wet purification system, and the dust removal device b is a circular slit venturi.
In the second embodiment, the output end of the metal film dust remover 4 is communicated with a cyclone dehydrator k of the tower wet purification system, and is used for spraying the dedusted converter flue gas and reducing the temperature of the converter flue gas to below 70 ℃.
Furthermore, a water seal can be built at the k part of the cyclone dehydrator, so that the full-dry purification system and the tower wet purification system are separated for standby.
Secondly, the cyclone dehydrator k is communicated with a gas induced draft fan e of the tower wet purification system, the gas induced draft fan e is respectively communicated with a diffusing ignition chimney h or a water seal check valve m through a three-way valve l, and the water seal check valve m is communicated with a converter fume chamber j (the prior art part of the tower wet purification system is quite mature and is not described in detail herein).
The comparison of the all dry purification system of the utility model with the existing LT dry purification system and the tower wet purification system is shown in the following table:
From the table above, it can be seen that the sensible heat of the flue gas (coal gas) at 1000-200 ℃ is recovered by adopting the waste heat boiler 3, so that more steam is recovered; because the metal film dust remover 4 is adopted, the safety of the whole system is higher, the explosion limit range of the gas is wider, and the gas can be recycled; the gas is cooled only in a low-temperature section, so that the water consumption is very small, equipment is few, the failure rate is reduced, and the reliability of the system is improved.
Through the scheme, the utility model can optimize the existing purification system of the converter flue gas, and is used in parallel with the existing purification system, so that the purification systems are mutually standby, and sufficient guarantee is provided for the smooth production of the steelmaking converter; the sensible heat of the converter flue gas (coal gas) can be fully utilized through the waste heat boiler 3; the metal film dust remover 4 has good conductivity and sealing property, is not easy to leak gas and explode, is beneficial to safe production, has stable purifying effect, can reliably reduce the dust content of the converter flue gas and reaches the emission standard; the utility model does not need a sewage treatment system, reduces the resistance of the whole system, greatly reduces the operation energy and achieves the aims of energy conservation and environmental protection.
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.
Claims (7)
1. A full-dry method purification system of converter flue gas is characterized in that:
Comprises a first communication device, an ash conveying chain, a waste heat boiler, a plurality of metal film dust collectors connected in parallel and a second communication device which are communicated in sequence;
the first communication device is communicated with the output end of the vaporization cooling flue of the existing purification system;
The waste heat boiler cools the converter smoke;
Filter elements made of metal filter materials are arranged in each metal film dust remover to remove dust from converter flue gas;
The output end of the final metal film dust remover is communicated with the output end of a dust removing device of the existing purifying system, and the flow direction of the converter flue gas after dust removal of the existing purifying system is the same as that of the converter flue gas after dust removal of the existing purifying system, so that the recovery or the diffusion of the converter flue gas after dust removal is realized.
2. The all dry cleaning system for converter flue gas of claim 1, wherein:
The existing purification system is an LT dry purification system or a tower wet purification system, and correspondingly, the dust removing device b is an electrostatic precipitator or a circular slit venturi tube.
3. The all dry cleaning system for converter flue gas of claim 2, wherein:
The first communication device is a three-way cut-off valve with 1 input end and 2 output ends, the input end of the first communication device is communicated with the output end of the vaporization cooling flue, and the output ends of the first communication device are respectively communicated with the ash conveying chain and an evaporative cooler of an LT dry purification system or a spray cooling tower of a tower wet purification system.
4. A system for the total dry cleaning of converter fumes according to claim 3, characterised in that:
When the existing purification system is an LT dry purification system, the system further comprises a second communication device, the second communication device is a three-way cut-off valve with 2 input ends and 1 output end, the input ends of the second communication device are respectively communicated to the output end of the metal film dust remover and the output end of the electrostatic precipitator, and the output end of the second communication device is communicated to a gas induced draft fan of the LT dry purification system.
5. A system for the total dry cleaning of converter fumes according to claim 3, characterised in that:
When the existing purification system is a tower wet purification system, the output end of the metal film dust remover is communicated to a cyclone dehydrator of the tower wet purification system.
6. The all dry cleaning system for converter flue gas of claim 1, wherein:
the metal filter material is sintered dust felt or sintered fiber felt.
7. The all dry cleaning system for converter flue gas of claim 1, wherein:
The metal film dust remover is cylindrical and vertically installed, and the lower end of the metal film dust remover is provided with an ash discharging valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322555252.8U CN220951875U (en) | 2023-09-20 | 2023-09-20 | Full-dry method purification system for converter flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322555252.8U CN220951875U (en) | 2023-09-20 | 2023-09-20 | Full-dry method purification system for converter flue gas |
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| Publication Number | Publication Date |
|---|---|
| CN220951875U true CN220951875U (en) | 2024-05-14 |
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| CN202322555252.8U Active CN220951875U (en) | 2023-09-20 | 2023-09-20 | Full-dry method purification system for converter flue gas |
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2023
- 2023-09-20 CN CN202322555252.8U patent/CN220951875U/en active Active
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