CN111068356A - Sintering mixes quick-witted flue gas dust removal and whitening device - Google Patents
Sintering mixes quick-witted flue gas dust removal and whitening device Download PDFInfo
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- CN111068356A CN111068356A CN202010030579.1A CN202010030579A CN111068356A CN 111068356 A CN111068356 A CN 111068356A CN 202010030579 A CN202010030579 A CN 202010030579A CN 111068356 A CN111068356 A CN 111068356A
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- 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
- B01D53/002—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 condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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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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Abstract
The invention discloses a flue gas dedusting and white removing device of a sintering mixer, which comprises condensation rotational flow water collecting equipment connected with sound wave agglomeration dust removing equipment, wherein the sound wave agglomeration dust removing equipment comprises an equipment shell, one end of the equipment shell is provided with an equipment inlet, the other end of the equipment shell is provided with an equipment outlet, a sound wave descaling module is arranged on the equipment shell at the equipment inlet, at least a first agglomeration module or a second agglomeration module is arranged in the equipment shell, and the first agglomeration module comprises a first flushing component and a first dust removing component which are sequentially arranged from the equipment inlet to the equipment outlet; the second agglomeration module comprises a seed particle generation assembly, an acoustic agglomeration assembly, a second flushing assembly and a second dust removal assembly which are sequentially arranged from the equipment inlet to the equipment outlet. The device provided by the invention solves the problem of high-dust emission of flue gas of a sintering mixer and simultaneously solves the problem of smoke plume emission of diffused flue gas by utilizing the combination of the sound wave agglomeration dust removal equipment and the condensation rotational flow water collection equipment.
Description
Technical Field
The invention belongs to the field of metallurgy, and particularly relates to a flue gas dedusting and whitening device of a sintering mixer, which consists of sound wave agglomeration dedusting equipment and condensation rotational flow water receiving equipment.
Background
With the development of society and the progress of science and technology, the demand of the steel industry is remarkably increased. With the increasing attention of the country to environmental protection. The emission standard of the steel industry and the coal chemical industry is higher and higher, and the national environmental protection agency requires energy conservation and emission reduction of enterprises, so that the environment-friendly Chinese health-care navigation is green Chinese health-care navigation.
At present, the iron and steel industry is suitable for a mixer system to mix raw materials, the mixer system is mainly used for humidifying and uniformly mixing sintered mixture, the mixture contains dry materials of small particles such as quicklime and the like in the production process, and a large amount of dust is generated when the mixture is transported into the mixer. When the mixer works, a large amount of dust can be generated by rolling materials, so that the dust in the mixer is diffused, and the dust concentration seriously exceeds the standard. The direct discharge into the atmosphere is very polluting. When the mixer works, high temperature and the molten liquid are needed for auxiliary mixing. The common mixing auxiliary method is high-temperature steam auxiliary mixing and quick lime auxiliary mixing.
The high-temperature steam is sprayed into the mixer in an auxiliary mixing mode, the mixture is heated at high temperature, and water condensed by the high-temperature steam is mixed liquid. The mixing mode has the defects that the high-temperature steam and the dust of the mixture in the mixer form particulate smoke which is directly discharged into the atmosphere, and the high-temperature steam and the mixture dust are mixed to travel into a mud-shaped object which is attached to an exhaust flue, so that the flue is blocked for a long time.
The auxiliary mixing of the quicklime is realized by adding the quicklime into a mixer and then adding water to perform chemical reaction to generate heat and calcium hydroxide. The materials in the mixer are heated by the generated heat, and water which does not undergo chemical reaction is used as mixed liquid of the materials. The disadvantage of this mixing method is that calcium hydroxide absorbs carbon dioxide in the air to form calcium carbonate which adheres to the inner wall of the pipe. And calcium carbonate is harder and can form a large condensate after being accumulated for a long time, and certain hidden danger is brought to the personal safety of cleaning personnel.
Therefore, the development of an efficient energy-saving method is important for solving the problems that smoke particles of a mixer are large and can not be directly discharged, the smoke humidity is high, the discharged white smoke plume is serious, a smoke pipeline is easy to plug and the like.
Disclosure of Invention
In order to solve the problems, the invention provides a flue gas dedusting and whitening device for a sintering mixer, which utilizes the combination of sound wave agglomeration dedusting equipment and condensation rotational flow water collecting equipment to solve the problem of high-dust emission of flue gas of the sintering mixer and solve the problem of smoke plume emission of diffused flue gas.
The invention is realized by the following technical scheme:
a sintering mixer flue gas dust removal and whitening device comprises condensation rotational flow water receiving equipment connected with sound wave agglomeration dust removal equipment, wherein the sound wave agglomeration dust removal equipment comprises an equipment shell, one end of the equipment shell is provided with an equipment inlet, the other end of the equipment shell is provided with an equipment outlet, a sound wave descaling module is arranged on the equipment shell at the equipment inlet, at least a first agglomeration module or a second agglomeration module is arranged in the equipment shell, the first agglomeration module comprises a first flushing component and a first dust removal component which are sequentially arranged from the equipment inlet to the equipment outlet, and the first flushing component is arranged around the first dust removal component; the second agglomeration module comprises a seed particle generation assembly, an acoustic agglomeration assembly, a second flushing assembly and a second dust removal assembly which are sequentially arranged from the equipment inlet to the equipment outlet.
Further, sintering mix quick-witted flue gas dust removal whiting device, first reunion module and second reunion module set up simultaneously inside the equipment casing, and first reunion module is closer to the equipment entrance than the second reunion module and sets up.
Furthermore, the sintering mixes quick-witted flue gas dust removal and white removal device, the bottom of equipment casing is provided with drainage subassembly.
Further, sintering mix quick-witted flue gas dust removal and white device that goes, sound wave descaling module includes sound generator and the horn of being connected with it, the horn setting is on equipment housing and inside towards equipment housing.
Further, sinter mixer flue gas dust removal white device that goes, the water equipment is received to condensation whirl includes the equipment body, and equipment body one end sets up condensation flue gas inlet, and the other end sets up condensation exhanst gas outlet, and the water subassembly is received to the inside whirl that sets up of equipment body, and equipment body one side sets up the cooling water inlet, and the opposite side sets up the cooling water outlet.
Further, sintering mix quick-witted flue gas dust removal white device that goes, first washing subassembly and second wash the combination that the subassembly was a plurality of water smoke nozzle and the female pipe of sparge water, the water smoke nozzle is the array and arranges on the female pipe of sparge water.
Further, sintering mix quick-witted flue gas dust removal and white device that goes, first dust removal subassembly and second dust removal subassembly are the defroster, and further, can be the combination of a plurality of demisters.
Further, sintering mix quick-witted flue gas dust removal and white device that goes, seed particle takes place the combination that the subassembly is a plurality of atomizing nozzles and female pipe, atomizing nozzle is array arrangement on female pipe.
Furthermore, the cyclone water collecting component of the flue gas dedusting and whitening device of the sintering mixer is a cyclone dehydrator, preferably a combination of the cyclone dehydrator made of metal materials and a mounting seat, and the cyclone dehydrator is arranged on the mounting seat in an array manner.
Further, the smoke dust and white removing device of the sintering mixer comprises a sound wave agglomeration component
Furthermore, the sintering mixer flue gas dust removal and white removal device, the drainage component is a valve or a drainage groove which is arranged at the bottom of the equipment shell and can be controlled to be opened and closed.
The invention has the beneficial effects that:
the device provided by the invention can be additionally arranged on the head flue and the tail flue of the primary mixer and the secondary mixer of the sintering machine, and has the functions of dust removal and white removal;
the dust content of the flue gas treated by the method is less than or equal to 10mg/m, so that the requirement of ultralow emission can be met;
the smoke treated by the method has low water content and no white smoke plume.
Drawings
FIG. 1 is a schematic view of a flue gas dust removal and whitening apparatus of a sintering mixer provided in example 1;
FIG. 2 is a schematic view of the sonic agglomeration dust removal apparatus described in example 1;
1-2 acoustic wave descaling module, 1-2-1 descaling acoustic wave component, 1-2-2 horn component;
1-3, a first agglomeration module, 1-3-1, a first washing component, 1-3-2, a first dust removal component;
1-4 parts of a second agglomeration module, 1-4-1 parts of a seed particle generation assembly, 1-4-2 parts of an agglomeration sound wave assembly, 1-4-3 parts of a second flushing assembly and 1-4-4 parts of a second dust removal assembly.
FIG. 3 is a schematic view of the condensation cyclone water collecting apparatus described in example 1;
in the above fig. 1-3, 1 is a sound wave agglomeration dust removing device, 2 is a condensation rotational flow water collecting device, 1-1 is a device shell, 1-1-1 is a device inlet, 1-1-2 is a device outlet, 1-1-4 is a water discharging component, 2-1 is a rotational flow water collecting component, 2-2 is a condensation flue gas inlet component, 2-3 is a condensation flue gas outlet component, 2-4 is a cooling water inlet component, and 2-5 is a cooling water outlet component.
Detailed Description
Example 1
As shown in fig. 1, the flue gas dedusting and whitening device for the sintering mixer provided in this embodiment includes a sound wave agglomeration dust-removing device 1, and an output end of the sound wave agglomeration dust-removing device 1 is connected to a condensation cyclone water-collecting device 2. As shown in fig. 2, the acoustic agglomeration dust removing apparatus 1 comprises an apparatus housing 11, one end of the apparatus housing 11 is provided with an apparatus inlet 111, the other end of the apparatus housing 11 is provided with an apparatus outlet 112, an acoustic descaling module 12 is arranged on the apparatus housing 11 at the apparatus inlet 111, a first agglomeration module 13 and a second agglomeration module 14 are arranged in the apparatus housing 11, the first agglomeration module 13 is arranged closer to the apparatus inlet 111 than the second agglomeration module 14, the first agglomeration module 13 comprises a first flushing component 131 and a first dust removing component 132 which are sequentially arranged in the direction from the apparatus inlet 111 to the apparatus outlet 112, and the first flushing component 131 is arranged around the windward side and the side of the first dust removing component 132; the second agglomeration module 14 comprises a seed particle generation assembly 141, a sonic agglomeration assembly 142, a second flushing assembly 143 and a second dust removal assembly 144 arranged in sequence from the apparatus inlet 111 to the apparatus outlet 112.
The acoustic descaling module 12 in this embodiment includes an acoustic generator 121 and a horn 122 connected thereto, and the horn 122 is disposed on the apparatus housing 11 and faces the inside of the apparatus housing 11.
In this embodiment, the first washing assembly 131 and the second washing assembly 143 are both a combination of a plurality of water mist nozzles and a washing water main pipe, the water mist nozzles are arranged in an array on the washing water main pipe, the first dust removing assembly 132 and the second dust removing assembly 144 are both demisters, and in other embodiments of practical use, the combination of a plurality of demisters may be used.
The seed particle generating assembly 141 is a combination of a plurality of atomizing nozzles and a main pipe, and the atomizing nozzles are arranged in an array on the main pipe.
The bottom of the device housing 11 is provided with a drain assembly 114, and the drain assembly 114 is a bottom drain with a switch door in this embodiment, and may be a drain tank, a drain valve or other drain structure capable of controlling the switch in other embodiments.
As shown in fig. 3, the condensation cyclone water collection device 2 includes a device body, one end of the device body is provided with a condensation flue gas inlet 22, the other end of the device body is provided with a condensation flue gas outlet 23, the inside of the device body is provided with a cyclone water collection assembly 21, one side of the device body is provided with a cooling water inlet 24, the other side of the device body is provided with a cooling water outlet 25, the cyclone water collection assembly 21 is a cyclone dehydrator, in other embodiments of practical implementation, the device body can be a combination of a cyclone dehydrator and a mounting seat made of metal, and the cyclone dehydrator is arranged on the mounting seat in an array.
In the using process of the device, the sound wave agglomeration dust removing equipment 1 and the condensation rotational flow water collecting equipment 2 are sequentially arranged on a flue gas pipeline according to the flowing direction of flue gas.
The working principle and the working process of the device are as follows:
the flue gas of the high-temperature sintering mixer containing the smoke dust enters the sound wave agglomeration dust removal equipment 1 from the equipment inlet 111 and sequentially passes through the first agglomeration module 13 and the second agglomeration module 14. The first agglomeration module 13 is used for coarse agglomeration, and large-particle-size liquid drops carried in the flue gas are removed in a rotational flow mode. The second agglomeration module 14 is an acoustic agglomeration module, and uses the seed particles emitted by the seed particle generation assembly 141 as agglomeration nuclei, under the action of the acoustic wave, the small particles in the flue gas are agglomerated into large particles, and are removed by the second dust removal assembly 144 in a rotational flow manner. One or more second agglomeration modules 14 may be arranged according to the smoke content of the flue gas. The windward side and the right upper side of the first agglomeration module 13 are provided with a first washing assembly 131, the windward side and the right upper side of the second agglomeration module 14 are provided with a second washing assembly 143, and washing water of the washing assemblies is used for washing liquid drops and smoke dust attached to the inner wall and the outer wall of the agglomeration module, so that the performance of the agglomeration module is kept. The washing water generated by the first and second washing assemblies 131 and 143 flows out through the drainage assembly 114. The dust content of the flue gas dedusted by the acoustic agglomeration dedusting equipment 1 is less than or equal to 12 mg/m.
The flue gas after dust removal flows out from the equipment outlet 112, enters from the condensed flue gas inlet 22, reaches the condensed cyclone water collecting equipment 2, and flows out from the condensed flue gas outlet 23 after passing through the cyclone water collecting component 21. Cooling water flows in from the cooling water inlet 24 and flows out from the cooling water outlet 25, and exchanges heat with the flue gas in the rotational flow water receiving assembly 21, and moisture contained in the flue gas is removed after cooling and rotational flow removal.
The dust content of the flue gas treated by the flue gas dedusting and whitening device of the sintering mixer is less than or equal to 10mg/m, so that the requirement of ultra-low emission is met; low water content and no white smoke plume.
Claims (10)
1. The flue gas dedusting and white removing device of the sintering mixer is characterized by comprising condensation cyclone water collecting equipment (2) connected with sound wave agglomeration dust removing equipment (1), wherein the sound wave agglomeration dust removing equipment (1) comprises an equipment shell (1-1), one end of the equipment shell (1-1) is provided with an equipment inlet (1-1-1), the other end of the equipment shell is provided with an equipment outlet (1-1-2), a sound wave descaling module (1-2) is arranged on the equipment shell (1-1) at the equipment inlet (1-1-1), at least a first agglomeration module (1-3) or a second agglomeration module (1-4) is arranged inside the equipment shell (1-1), and the first agglomeration module (1-3) comprises a first flushing group which is sequentially arranged in the direction from the equipment inlet (1-1-1) to the equipment outlet (1-1-2) A member (1-3-1) and a first dust-collecting assembly (1-3-2), said first flushing assembly (1-3-1) being arranged around the first dust-collecting assembly (1-3-2); the second agglomeration module (1-4) comprises a seed particle generating assembly (1-4-1), a sonic agglomeration assembly (1-4-2), a second flushing assembly (1-4-3) and a second dust removal assembly (1-4-4) which are sequentially arranged from the equipment inlet (1-1-1) to the equipment outlet (1-1-2).
2. The fume dedusting and whitening apparatus for a sinter mixer according to claim 1, wherein the first agglomeration module (1-3) and the second agglomeration module (1-4) are disposed inside the apparatus casing (1-1) at the same time, and the first agglomeration module (1-3) is disposed closer to the apparatus inlet (1-1-1) than the second agglomeration module (1-4).
3. The fume dedusting and whitening apparatus for sinter mixer as claimed in claim 1, characterized in that the bottom of the device housing (1-1) is provided with a drainage assembly (1-1-4).
4. The flue gas dust and white removal device of a sintering mixer according to claim 1, wherein the sonic descaling module (1-2) comprises a sonic generator (1-2-1) and a horn (1-2-2) connected with the sonic generator, and the horn (1-2-2) is arranged on the equipment shell (1-1) and faces the inside of the equipment shell (1-1).
5. The flue gas dedusting and white-removing device of the sintering mixer according to claim 1, wherein the condensation cyclone water-collecting device (2) comprises a device body, one end of the device body is provided with a condensation flue gas inlet (2-2), the other end of the device body is provided with a condensation flue gas outlet (2-3), a cyclone water-collecting component (2-1) is arranged inside the device body, one side of the device body is provided with a cooling water inlet (2-4), and the other side of the device body is provided with a cooling water outlet (2-5).
6. The flue gas dedusting and whitening device for the sinter mixer as claimed in claim 1, wherein the first washing unit (1-3-1) and the second washing unit (1-4-3) are a combination of a plurality of water mist nozzles and a washing water header, and the water mist nozzles are arranged in an array on the washing water header.
7. Sinter mixer flue gas dedusting and whitening apparatus according to claim 1, characterized in that both the first (1-3-2) and the second (1-4-4) dedusting assemblies are mist eliminators, preferably a combination of mist eliminators.
8. The flue gas dedusting and white-removing device of the sintering mixer as recited in claim 1, wherein the seed particle generating assembly (1-4-1) is a combination of a plurality of atomizing nozzles and a main pipe, and the atomizing nozzles are arranged in an array on the main pipe.
9. The flue gas dedusting and white-removing device of the sintering mixer as claimed in claim 5, wherein the cyclone water collecting component (2-1) is a cyclone dehydrator, preferably a combination of a metal cyclone dehydrator and a mounting seat, and the cyclone dehydrators are arranged on the mounting seat in an array manner.
10. The fume dedusting and whitening apparatus for a sinter mixer according to claim 1, wherein the sonic agglomeration unit (1-4-2) is a sonic generator, which may be frequency-fixed or frequency-adjustable, and may be one or more in number, and is located between the seed particle generating unit (1-4-1) and the second dedusting unit (1-4-4).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010030579.1A CN111068356A (en) | 2020-01-13 | 2020-01-13 | Sintering mixes quick-witted flue gas dust removal and whitening device |
| KR1020227014018A KR20220069088A (en) | 2020-01-13 | 2021-01-07 | Converter primary flue gas sonic coagulation dust removal device |
| PCT/CN2021/070586 WO2021143608A1 (en) | 2020-01-13 | 2021-01-07 | Acoustic agglomeration dust removal apparatus for converter primary flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010030579.1A CN111068356A (en) | 2020-01-13 | 2020-01-13 | Sintering mixes quick-witted flue gas dust removal and whitening device |
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| Publication Number | Publication Date |
|---|---|
| CN111068356A true CN111068356A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010030579.1A Pending CN111068356A (en) | 2020-01-13 | 2020-01-13 | Sintering mixes quick-witted flue gas dust removal and whitening device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143608A1 (en) * | 2020-01-13 | 2021-07-22 | 南京常荣声学股份有限公司 | Acoustic agglomeration dust removal apparatus for converter primary flue gas |
-
2020
- 2020-01-13 CN CN202010030579.1A patent/CN111068356A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143608A1 (en) * | 2020-01-13 | 2021-07-22 | 南京常荣声学股份有限公司 | Acoustic agglomeration dust removal apparatus for converter primary flue gas |
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