CN111729493A - Coal gas desulfurization system for blast furnace ironmaking - Google Patents

Coal gas desulfurization system for blast furnace ironmaking Download PDF

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Publication number
CN111729493A
CN111729493A CN202010466470.2A CN202010466470A CN111729493A CN 111729493 A CN111729493 A CN 111729493A CN 202010466470 A CN202010466470 A CN 202010466470A CN 111729493 A CN111729493 A CN 111729493A
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CN
China
Prior art keywords
fixedly connected
case
water tank
material layer
filter screen
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.)
Pending
Application number
CN202010466470.2A
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Chinese (zh)
Inventor
霍兆义
张晓玲
何嵩
李翠岩
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University of Science and Technology Liaoning USTL
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University of Science and Technology Liaoning USTL
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Priority to CN202010466470.2A priority Critical patent/CN111729493A/en
Publication of CN111729493A publication Critical patent/CN111729493A/en
Pending legal-status Critical Current

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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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/602—Oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a coal gas desulfurization system for blast furnace ironmaking, which comprises a treatment box, wherein the top of the treatment box is fixedly connected with a water tank, a flow guide pipe is communicated between the water tank and the treatment box, an electromagnetic valve is arranged on the surface of the flow guide pipe, the bottom of the electromagnetic valve is communicated with a transverse pipe, and the bottom of the transverse pipe is communicated with a spray head. According to the invention, air is fed through the air inlet pipe on the left side of the treatment box, a desulfurization agent in the inner cavity of the water tank is discharged downwards through the flow guide pipe and the transverse pipe after the electromagnetic valve is opened, and is sprayed down by the spray head, lime water and flue gas are fully mixed to improve the desulfurization efficiency, then water is filtered through the quartz filter material layer, the porcelain sand filter material layer and the granular activated carbon filter material layer in the inner cavity of the filter screen box, and then the water is sucked to the water tank through the pump, so that the effect of recycling is achieved. The invention provides the problem of sulfur in the coal gas discharged by blast furnace ironmaking.

Description

Coal gas desulfurization system for blast furnace ironmaking
Technical Field
The invention relates to the technical field of desulfurization, in particular to a coal gas desulfurization system for blast furnace ironmaking.
Background
The desulfurization, generally refer to the desulfurization process before combustion to remove sulfur in fuel and before flue gas emission, is one of the important technical measures for preventing and treating air pollution, the desulfurization method generally has three kinds before combustion, during combustion and after combustion desulfurization, etc., along with the development of industry and the improvement of living standard of people, the craving for energy is also increasing, the blast furnace ironmaking generally uses coal, the ironmaking coal gas belongs to the secondary energy of metallurgical industry, organic sulfur and inorganic sulfur in the coal gas are converted into sulfur dioxide to pollute the atmosphere during secondary utilization, the coal gas desulfurization has the advantages of low primary cost and high desulfurization efficiency compared with the flue gas desulfurization, therefore, a coal gas desulfurization system for blast furnace ironmaking is provided.
Disclosure of Invention
The invention aims to provide a coal gas desulfurization system for blast furnace iron making, which has the advantages of low primary cost and high desulfurization efficiency compared with flue gas desulfurization.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a coal gas desulfurization system that blast furnace ironmaking was used, is including handling the case, the top fixedly connected with water tank of handling the case, the intercommunication has the honeycomb duct between water tank and the handling case, the surface of honeycomb duct is provided with the solenoid valve, the bottom intercommunication of solenoid valve has violently the pipe, the bottom intercommunication of violently managing has the shower nozzle, the equal fixedly connected with fixed block in both sides of handling the incasement chamber, and be provided with the filter box case between two fixed blocks, the wash port has been seted up to the bottom of filter box case, the filter box case with handle the surperficial swing joint of case, and the filter box all around fixedly connected with.
Preferably, the inner cavity of the filter net cage is fixedly connected with a quartz stone filter material layer, a porcelain sand filter material layer and a granular activated carbon filter material layer from top to bottom in sequence.
Preferably, the right side of the treatment box is communicated with a pump, and the water outlet end of the pump is communicated with the water tank.
Preferably, the lower end of the inner cavity of the treatment box is fixedly connected with a flow guide cover, and the flow guide cover is positioned at the lower end of the filter net box.
Preferably, the inner side of the fixing block is provided with a first limiting groove, and the top of the fixing block is provided with a second limiting groove.
Preferably, the two sides of the filter net cage are fixedly connected with first limiting blocks, and one ends of the first limiting blocks extend to the inner cavities of the first limiting grooves.
Preferably, both sides of the bottom of the filter net cage are fixedly connected with second limiting blocks, and one ends of the second limiting blocks extend to the inner cavities of the second limiting grooves.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, air is fed through the air inlet pipe on the left side of the treatment box, lime water in the inner cavity of the water tank is discharged downwards through the guide pipe and the transverse pipe after the electromagnetic valve is opened, and is sprayed down by the spray head, a desulfurization agent is fully mixed with flue gas to improve desulfurization efficiency, then the water is filtered through the quartz filter material layer, the porcelain sand filter material layer and the granular activated carbon filter material layer in the inner cavity of the filter screen box, and then the water is sucked to the water tank through the pump, so that the effect of recycling is achieved, the problem that coal is generally used in blast furnace iron making, but sulfur dioxide in coal-fired gas becomes a main cause of atmospheric pollution.
2. The filter screen box is provided with the fixing block, the first limiting groove, the first limiting block, the second limiting groove and the second limiting block, so that the filter screen box is convenient to draw out and replace.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a sieve box according to the present invention;
FIG. 3 is a schematic view of a fixing block according to the present invention;
FIG. 4 is a schematic diagram of the arrangement structure of the filtering net cage on the treatment box.
In the figure: 1. a treatment tank; 2. a water tank; 3. a flow guide pipe; 4. an electromagnetic valve; 5. a transverse tube; 6. a spray head; 7. a fixed block; 8. a filter screen box; 9. a quartz stone filter material layer; 10. a ceramic sand filter material layer; 11. a granular activated carbon filter material layer; 12. a drain hole; 13. a pump machine; 14. a pod; 15. a first limit groove; 16. a first stopper; 17. a second limit groove; 18. and a second limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The treatment box 1, the water tank 2, the flow guide pipe 3, the electromagnetic valve 4, the transverse pipe 5, the spray head 6, the fixed block 7, the filter box 8, the quartz stone filter material layer 9, the porcelain sand filter material layer 10, the particle activated carbon filter material layer 11, the drain hole 12, the pump machine 13, the flow guide cover 14, the first limiting groove 15, the first limiting block 16, the second limiting groove 17 and the second limiting block 18 are all universal standard parts or parts known by technicians in the field, and the structure and the principle of the treatment box can be known by technicians or conventional experimental methods.
Referring to fig. 1-4, a gas desulfurization system for blast furnace ironmaking comprises a treatment box 1, a water tank 2 is fixedly connected to the top of the treatment box 1, a pump 13 is communicated with the right side of the treatment box 1, the water outlet end of the pump 13 is communicated with the water tank 2, a flow guide pipe 3 is communicated between the water tank 2 and the treatment box 1, a solenoid valve 4 is arranged on the surface of the flow guide pipe 3, a horizontal pipe 5 is communicated with the bottom of the solenoid valve 4, a spray head 6 is communicated with the bottom of the horizontal pipe 5, fixed blocks 7 are fixedly connected to both sides of the inner cavity of the treatment box 1, a filter screen box 8 is arranged between the two fixed blocks 7, a quartz stone filter material layer 9, a porcelain sand filter material layer 10 and a granular activated carbon filter material layer 11 are fixedly connected to the inner cavity of the filter screen box 8 from top to bottom in sequence, a drain hole 12 is arranged at the bottom of the filter screen box 8, the lower end of the inner cavity of the processing box 1 is fixedly connected with a flow guide cover 14, the flow guide cover 14 is positioned at the lower end of the filter screen box 8, the inner side of the fixed block 7 is provided with a first limit groove 15, the top of the fixed block 7 is provided with a second limit groove 17, both sides of the filter screen box 8 are fixedly connected with first limit blocks 16, one end of each first limit block 16 extends to the inner cavity of the first limit groove 15, both sides of the bottom of the filter screen box 8 are fixedly connected with second limit blocks 18, one end of each second limit block 18 extends to the inner cavity of the second limit groove 17, air is admitted through an air inlet pipe at the left side of the processing box 1, lime water in the inner cavity of the water box 2 is discharged downwards through a flow guide pipe 3 and a transverse pipe 5 after the electromagnetic valve 4 is opened, the lime water is sprayed by a spray head 6, the lime water and flue gas are fully mixed to improve the desulfurization efficiency, and then the water can, then the water is sucked to the water tank 2 through the pump 13, thereby achieving the effect of recycling, solving the problem that coal is generally used in blast furnace ironmaking, but sulfur dioxide in coal-fired flue gas becomes the main cause of air pollution.
During the use, start above-mentioned electrical component through the peripheral hardware controller, admit air through handling the left intake pipe of case 1, the lime wash of 2 inner chambers of water tank passes through honeycomb duct 3 and violently pipe 5 and discharges downwards after opening solenoid valve 4, and spray by shower nozzle 6, lime wash and flue gas intensive mixing improve desulfurization efficiency, then water can pass through the quartz filter bed 9 of filter screen case 8 inner chambers, the filtration of porcelain sand filter bed 10 and granule active carbon filter bed 11, then water is drawn to water tank 2 through pump machine 13, thereby reach the effect of recycling, the general use coal of blast furnace ironmaking has been solved, but the sulfur dioxide in the coal-fired flue gas has become the problem of the leading cause of atmosphere pollution.
The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a coal gas desulfurization system that blast furnace ironmaking used, includes treatment case (1), its characterized in that: the top fixedly connected with water tank (2) of handling case (1), the intercommunication has honeycomb duct (3) between water tank (2) and the processing case (1), the surface of honeycomb duct (3) is provided with solenoid valve (4), the bottom intercommunication of solenoid valve (4) has violently pipe (5), the bottom intercommunication of violently pipe (5) has shower nozzle (6), the equal fixedly connected with fixed block (7) in both sides of handling case (1) inner chamber, and be provided with between two fixed blocks (7) filter screen case (8), wash port (12) have been seted up to the bottom of filter screen case (8), filter screen case (8) and the surface swing joint who handles case (1), and the fixedly connected with sealed pad around filter screen case (8).
2. The system of claim 1, wherein the system comprises: the inner cavity of the filter screen box (8) is fixedly connected with a quartz stone filter material layer (9), a porcelain sand filter material layer (10) and a granular activated carbon filter material layer (11) from top to bottom in sequence.
3. The system of claim 1, wherein the system comprises: the right side of the treatment box (1) is communicated with a pump (13), and the water outlet end of the pump (13) is communicated with the water tank (2).
4. The system of claim 1, wherein the system comprises: the lower end of the inner cavity of the treatment box (1) is fixedly connected with a flow guide cover (14), and the flow guide cover (14) is positioned at the lower end of the filter screen box (8).
5. The system of claim 1, wherein the system comprises: the inner side of the fixing block (7) is provided with a first limiting groove (15), and the top of the fixing block (7) is provided with a second limiting groove (17).
6. The system of claim 1, wherein the system comprises: the equal fixedly connected with first stopper (16) in both sides of straining screen box (8), the one end of first stopper (16) extends to the inner chamber of first spacing groove (15).
7. The system of claim 1, wherein the system comprises: the equal fixedly connected with second stopper (18) in both sides of straining net case (8) bottom, and the inner chamber of second spacing groove (17) is extended to the one end of second stopper (18).
CN202010466470.2A 2020-05-28 2020-05-28 Coal gas desulfurization system for blast furnace ironmaking Pending CN111729493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010466470.2A CN111729493A (en) 2020-05-28 2020-05-28 Coal gas desulfurization system for blast furnace ironmaking

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Application Number Priority Date Filing Date Title
CN202010466470.2A CN111729493A (en) 2020-05-28 2020-05-28 Coal gas desulfurization system for blast furnace ironmaking

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494614A (en) * 1994-05-23 1996-02-27 The Babcock & Wilcox Company Wet flue gas desulfurization scrubber in situ forced oxidation retrofit
CN2595443Y (en) * 2002-12-25 2003-12-31 王仕国 Stereo smoke desulfurizing and dush remover
CN204727719U (en) * 2015-04-28 2015-10-28 西安泽源湿地科技股份有限公司 Novel ecological wetland pond
CN109028199A (en) * 2018-08-31 2018-12-18 嘉兴美斯克电气科技有限公司 A kind of air outlet device of range hood
CN109012071A (en) * 2018-06-21 2018-12-18 安徽溢彩玻璃器皿有限公司 A kind of agstone desulfurization dust-removing technique and device
CN209438301U (en) * 2019-01-08 2019-09-27 山东天航机械装备有限公司 A kind of lime burner furnace desulfurating dust removing device for flue gas
CN209835845U (en) * 2019-04-26 2019-12-24 郑州市环境保护监测中心站 Sewage treatment filter equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494614A (en) * 1994-05-23 1996-02-27 The Babcock & Wilcox Company Wet flue gas desulfurization scrubber in situ forced oxidation retrofit
CN2595443Y (en) * 2002-12-25 2003-12-31 王仕国 Stereo smoke desulfurizing and dush remover
CN204727719U (en) * 2015-04-28 2015-10-28 西安泽源湿地科技股份有限公司 Novel ecological wetland pond
CN109012071A (en) * 2018-06-21 2018-12-18 安徽溢彩玻璃器皿有限公司 A kind of agstone desulfurization dust-removing technique and device
CN109028199A (en) * 2018-08-31 2018-12-18 嘉兴美斯克电气科技有限公司 A kind of air outlet device of range hood
CN209438301U (en) * 2019-01-08 2019-09-27 山东天航机械装备有限公司 A kind of lime burner furnace desulfurating dust removing device for flue gas
CN209835845U (en) * 2019-04-26 2019-12-24 郑州市环境保护监测中心站 Sewage treatment filter equipment

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Application publication date: 20201002