CN113186001A - Blast furnace gas fine desulfurization system - Google Patents
Blast furnace gas fine desulfurization system Download PDFInfo
- Publication number
- CN113186001A CN113186001A CN202110372124.2A CN202110372124A CN113186001A CN 113186001 A CN113186001 A CN 113186001A CN 202110372124 A CN202110372124 A CN 202110372124A CN 113186001 A CN113186001 A CN 113186001A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- furnace gas
- pipe
- liquid
- turbine
- 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
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 48
- 230000023556 desulfurization Effects 0.000 title claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 27
- 230000009467 reduction Effects 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 71
- 239000007921 spray Substances 0.000 claims description 25
- 238000005507 spraying Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 238000004062 sedimentation Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 89
- 239000002912 waste gas Substances 0.000 abstract description 2
- 230000001603 reducing effect Effects 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 125000001741 organic sulfur group Chemical group 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
-
- 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
- C10K1/002—Removal of contaminants
- C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
- C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
-
- 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
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a blast furnace gas fine desulfurization system, which belongs to the technical field of waste gas treatment and comprises a blast furnace, a dust removal device, a conversion device, a turbine, a pressure reduction device and a desulfurization device, wherein: the blast furnace, the dust removal device, the conversion device, the turbine and the desulfurization device are sequentially connected to form a first passage; the blast furnace, the dust removal device, the turbine and the desulfurization device are sequentially connected to form a second passage; the blast furnace, the dust removal device, the conversion device, the pressure reduction device and the desulfurization device are sequentially connected to form a third passage; when the blast furnace gas works normally, the blast furnace gas flows along the first path; when the conversion device fails, the blast furnace gas flows along the second path; when the turbine fails, blast furnace gas flows along the third path. The blast furnace gas fine desulfurization system provided by the invention solves the problem that the normal work of the whole system is influenced when a conversion tower or a turbine is overhauled in the prior art, so that the work efficiency is low.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to a blast furnace gas fine desulfurization system.
Background
The blast furnace gas is a byproduct combustible gas in the production process of the blast furnace, has large output and wide application, and can be used as fuel. Because blast furnace gas generated in the blast furnace ironmaking process is directly used as fuel without being desulfurized, SO in the flue gas emission of the heating furnace2The content exceeds the standard, so the blast furnace gas needs to be desulfurizedAnd (6) processing. Generally, organic sulfur in blast furnace gas is converted into inorganic sulfur by arranging a conversion tower, the conversion tower is usually directly connected in series with a turbine, and the operation of the whole system is influenced and the working efficiency is reduced because the operation of the conversion tower or the turbine needs to be stopped when being overhauled.
Disclosure of Invention
The invention aims to provide a blast furnace gas fine desulfurization system, and aims to solve the problem that the normal work of the whole system is influenced and the working efficiency is low when a conversion tower or a turbine is overhauled in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the blast furnace gas fine desulfurization system comprises a blast furnace, a dust removal device, a conversion device, a turbine, a pressure reduction device and a desulfurization device, wherein:
the blast furnace, the dust removal device, the conversion device, the turbine and the desulfurization device are sequentially connected to form a first passage;
the blast furnace, the dust removal device, the turbine and the desulfurization device are sequentially connected to form a second passage; and
the blast furnace, the dust removal device, the conversion device, the pressure reduction device and the desulfurization device are sequentially connected to form a third passage;
in normal operation, blast furnace gas flows along the first path; when the switching device fails, blast furnace gas flows along the second path; when the turbine fails, blast furnace gas flows along the third path.
As another embodiment of this application, dust collector's discharge gate pass through discharge tube respectively with conversion device's feed inlet with the feed inlet intercommunication of turbine, the discharge tube that the turbine corresponds is equipped with first switch.
As another embodiment of this application, desulphurization unit's feed inlet pass through the charge-in pipeline respectively with pressure relief device's discharge gate with the discharge gate intercommunication of turbine, be equipped with the second switch on the discharge pipeline that pressure relief device corresponds.
As another embodiment of the present application, the discharge port of the conversion device is respectively communicated with the feed port of the pressure reduction device and the discharge port of the turbine through an intermediate pipe.
As another embodiment of the present application, the conversion apparatus includes:
the tower body is provided with an air inlet arranged at the lower part and an air outlet arranged at the top;
the spraying assembly is arranged at the upper part of the tower body and is used for spraying liquid into the tower body;
the filtering assembly is arranged at the lower part of the spraying assembly and is used for filtering impurities in the blast furnace gas; and
and the sedimentation component is arranged at the lower part of the filtering component and is used for settling the liquid after reaction.
As another embodiment of the present application, the spray assembly comprises:
the guide cylinder is a conical cylindrical component with the diameter sequentially increased from top to bottom;
the spiral disc is arranged in the guide cylinder, the outer edge of the guide plate is connected to the inner wall of the guide cylinder, and the guide plate is used for enabling blast furnace gas and liquid sprayed by the spraying assembly to form rotational flow; and
and the spray pipe is arranged at the top of the guide cylinder and used for spraying liquid into the guide cylinder.
As another embodiment of the present application, the shower pipe includes:
the main pipe is used for conveying liquid into the tower body;
the first pipe body is annularly arranged at the top of the guide cylinder; and
and the plurality of second pipe bodies are respectively communicated with the main pipe and the first pipe body and used for conveying the liquid in the main pipe to the second pipe bodies, and the first pipe bodies and the second pipe bodies are provided with spray holes with downward openings.
As another embodiment of the present application, the settling assembly comprises:
the box body is internally provided with a containing cavity for containing the sedimentation filler, and the top and the bottom of the box body are respectively provided with a liquid permeation hole; and
and the flushing pipe is arranged below the box body and is used for spraying cleaning liquid into the box body.
As another embodiment of this application, it still includes the settlement plate to subside the subassembly, the settlement plate is located the below of flushing pipe, with the connection can be dismantled to the tower body, be equipped with the filtration pore on the settlement plate.
As another embodiment of the present application, the conversion apparatus further includes:
the liquid supplementing box is arranged outside the tower body;
the upper end of the flow guide pipe is connected with the spray pipe, the lower end of the flow guide pipe extends into the liquid supplementing box and is used for pouring liquid in the liquid supplementing box into the spray pipe, and a third switch is arranged on the flow guide pipe; and
and the liquid inlet end of the circulating pipe is connected with the tower body and is arranged below the sedimentation plate, the top end of the circulating pipe is connected with the spray pipe, and the circulating pipe is provided with a fourth switch.
The blast furnace gas fine desulfurization system provided by the invention has the beneficial effects that: compared with the prior art, when the blast furnace gas fine desulfurization system is normally used, the blast furnace gas flows along the first passage, the dust removal device removes dust and filters particles in the blast furnace gas, organic sulfur in the blast furnace gas is converted into inorganic sulfur in the conversion device, the high-pressure blast furnace gas is reduced in pressure by the turbine, and then the high-pressure blast furnace gas is introduced into the desulfurization device to perform desulfurization treatment on the blast furnace gas, so that the discharged blast furnace gas meets the requirements. When the turbine has a fault, the blast furnace gas flows along the second path, and the blast furnace gas is subjected to pressure reduction treatment by the pressure reduction device; when the conversion device breaks down, the blast furnace gas flows along the third path, and after passing through the dust removal device, the blast furnace gas is subjected to pressure reduction treatment by the turbine and then directly introduced into the desulfurization device. The second passage and the third passage can ensure that the system can be normally used when the conversion device or the turbine breaks down, and the working efficiency is improved. The system has simple structure, can effectively ensure that the blast furnace gas can be continuously and stably desulfurized under the condition of not increasing other equipment, and reduces the loss caused by shutdown of the device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a blast furnace gas fine desulfurization system provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a conversion apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a guide cylinder according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a baffle used in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a blast furnace gas fine desulfurization system according to a second embodiment of the present invention.
In the figure: 1. a blast furnace; 2. a dust removal device; 3. a pressure reducing device; 301. a pressure reducing valve; 4. a conversion device; 401. a tower body; 402. an air inlet; 403. an accommodating chamber; 404. a filter assembly; 405. a box body; 406. a guide cylinder; 407. a liquid discharge port; 408. an air outlet; 409. a shower pipe; 4091. a main pipe; 4092. a second tube body; 4093. a first pipe body; 4010. a circulation pipe; 4011. a fourth switch; 4012. a third switch; 4013. a flow guide pipe; 4014. a liquid replenishing box; 4015. a flush tube; 4016. a baffle; 4017. a first regulating valve; 4018. a liquid permeable hole; 4019. a settlement plate; 5. a turbine; 6. a desulfurization unit; 7. a first switch; 8. a second switch.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 5, a blast furnace gas fine desulfurization system according to the present invention will now be described. Blast furnace gas fine desulfurization system includes blast furnace 1, dust collector 2, conversion equipment 4, turbine 5, pressure relief device 3 and desulphurization unit 6, wherein: the blast furnace 1, the dust removal device 2, the conversion device 4, the turbine 5 and the desulphurization device 6 are sequentially connected to form a first passage; the blast furnace 1, the dust removal device 2, the turbine 5 and the desulphurization device 6 are sequentially connected to form a second passage; the blast furnace 1, the dust removal device 2, the conversion device 4, the pressure reduction device 3 and the desulfurization device 6 are sequentially connected to form a third passage;
when the blast furnace gas works normally, the blast furnace gas flows along the first path; when the switching device 4 fails, the blast furnace gas flows along the second path; when the turbine 5 fails, the blast furnace gas flows along the third path.
Compared with the prior art, the blast furnace gas fine desulfurization system provided by the invention has the advantages that when the blast furnace gas fine desulfurization system is normally used, the blast furnace gas flows along the first passage, the dust removal device 2 removes dust and filters particles in the blast furnace gas, organic sulfur in the blast furnace gas is converted into inorganic sulfur in the conversion device 4, the high-pressure blast furnace gas is subjected to pressure reduction through the turbine 5, and then the high-pressure blast furnace gas is introduced into the desulfurization device 6 to perform desulfurization treatment on the blast furnace gas, so that the discharged blast furnace gas meets the requirements. When the turbine 5 has a fault, the blast furnace gas flows along the second path, and the blast furnace gas is subjected to pressure reduction treatment through the pressure reducing device 3; when the conversion device 4 breaks down, the blast furnace gas flows along the third path, passes through the dust removal device 2, then is subjected to pressure reduction treatment by the turbine 5, and then is directly introduced into the desulfurization device 6. The second path and the third path can ensure that the system can be normally used when the conversion device 4 or the turbine 5 breaks down, and the working efficiency is improved. The system has simple structure, can effectively ensure that the blast furnace gas can be continuously and stably desulfurized under the condition of not increasing other equipment, and reduces the loss caused by shutdown of the device.
Optionally, a first regulating valve 4017 is disposed on the switching device 4, and is used to control the operation of the switching device 4, and when the switching device 4 fails, the first regulating valve 4017 is closed, so that the switching device 4 is stopped from being used.
Optionally, the blast furnace gas is desulfurized and then transported to the user through a gas pipeline.
Optionally, referring to fig. 5, a plurality of conversion devices 4 are provided, and a plurality of conversion devices 4 are connected in parallel, so as to improve conversion efficiency, reduce the volume of a single conversion device 4, and avoid excessive dedicated area.
Referring to fig. 1 and 5, the discharge port of the dust removing device 2 is respectively communicated with the feed port of the converting device 4 and the feed port of the turbine 5 through a discharge pipe, and the discharge pipe corresponding to the turbine 5 is provided with a first switch 7.
In this embodiment, when the switching device 4 fails, the first switch 7 is activated to allow the blast furnace gas to flow along the second channel, thereby ensuring the normal operation of the whole system. When the second path is not enabled, the first switch 7 is in the off state. The first switch 7 can ensure that the blast furnace gas flows along a given line, and the flow line of the blast furnace gas can be conveniently switched.
Referring to fig. 1 and 5, a feed inlet of the desulfurization device 6 is respectively communicated with a discharge outlet of the pressure reduction device 3 and a discharge outlet of the turbine 5 through a feed pipeline, and a discharge pipeline corresponding to the pressure reduction device 3 is provided with a second switch 8.
When the turbine 5 fails, the second switch 8 is opened to enable the blast furnace gas to flow along the third channel, and the pressure reduction device 3 is used for carrying out pressure reduction treatment on the blast furnace gas to ensure that the treated gas is conveyed outwards in a normal pressure state. The second switch 8 can ensure that the blast furnace gas flows along a given line, and the flow line of the blast furnace gas can be conveniently switched.
Optionally, the turbine 5 has a second regulating valve which is closed in the event of a failure of the turbine 5, so that the blast furnace gas cannot pass through the turbine 5.
Optionally, referring to fig. 5, the pressure reducing device 3 includes a plurality of pressure reducing valves 301 connected in parallel for increasing the pressure reducing effect.
Referring to fig. 1 and 5, the discharge port of the conversion device 4 is respectively communicated with the feed port of the pressure reducing device 3 and the discharge port of the turbine 5 through intermediate pipes.
When the turbine 5 has a fault, the first switch 7 is closed, the second switch 8 is opened, the blast furnace gas flows along the second path, and the pressure reduction treatment is carried out on the blast furnace gas through the pressure reduction device 3; when the conversion device 4 breaks down, the second switch 8 is closed, the first switch 7 is opened, the blast furnace gas flows along the third path, and the blast furnace gas passes through the dust removal device 2, then is subjected to pressure reduction treatment by the turbine 5, and then is directly introduced into the desulfurization device 6. By adopting the structure, connecting pipelines among the devices are reduced, and the installation cost and the occupied area are saved.
Referring to fig. 2, the conversion device 4 comprises a tower body 401, a spraying assembly, a filtering assembly 404 and a settling assembly, wherein the tower body 401 is provided with a gas inlet 402 arranged at the lower part and a gas outlet 408 arranged at the top part; the spray assembly is arranged at the upper part of the tower body 401 and is used for spraying liquid into the tower body 401; the filtering assembly 404 is arranged at the lower part of the spraying assembly and is used for filtering impurities in the blast furnace gas; the settling assembly is arranged at the lower part of the filtering assembly 404 and is used for settling the liquid after reaction.
Blast furnace gas passes through air inlet 402 and gets into in tower body 401, and the large granule impurity that it contains is blockked in filter assembly 404 below when upwards passing filter assembly 404, and the gas through filter assembly 404 continues upwards flow and fully reacts with the liquid that spray assembly jetted, turns into inorganic sulphur with organic sulphur, makes things convenient for follow-up desulfurization treatment. The impurities filtered by the filtering component 404 are mixed with the reacted liquid, and the impurities in the mixture are settled by the settling component to obtain a relatively clear liquid, so that the environment pollution caused by directly discharging the mixture is avoided.
Optionally, a first modulation valve 4017 is provided on inlet port 402.
Referring to fig. 2 to 4, the spray assembly includes a guide cylinder 406, a baffle 4016 and a spray pipe 409, the guide cylinder 406 is connected to the sidewall of the tower body 401, and the guide cylinder 406 is a conical cylindrical member with a diameter that increases from top to bottom; the spiral disk of the guide plate 4016 is arranged in the guide cylinder 406, the outer edge of the guide plate 4016 is connected to the inner wall of the guide cylinder 406, and the guide plate 4016 is used for enabling blast furnace gas and liquid sprayed by the spraying assembly to form rotational flow; a shower 409 is provided at the top of the guide cylinder 406 for spraying liquid into the guide cylinder 406.
After passing through the filter assembly 404, the blast furnace gas enters the guide cylinder 406 from the bottom of the guide cylinder 406 and flows along the guide plate 4016 in the guide cylinder 406 to form a rotational flow, meanwhile, the liquid sprayed by the spray pipe 409 also flows into the guide cylinder 406 and flows downwards under the action of the guide plate 4016 to form a rotational flow, and the blast furnace gas and the liquid fully react in the guide cylinder 406, so that organic sulfur in the blast furnace gas is converted into inorganic sulfur, and the conversion efficiency is improved. The treated blast furnace gas flows out of the guide cylinder 406 and out of the gas outlet 408 at the top of the tower body 401. The conical barrel structure enables the blast furnace gas to form a larger gas pressure when the gas is close to the top of the guide barrel 406, and the gas can conveniently flow out of the guide barrel 406.
Optionally, the bottom of the guide cylinder 406 is connected to the side wall of the tower body 401, so that the filtered blast furnace gas completely enters the guide cylinder 406.
Optionally, the liquid sprayed into the tower body 401 by the spray pipe 409 is water, so that organic sulfur is converted into hydrogen sulfide.
Referring to fig. 3, the spray pipe 409 includes a main pipe 4091, a first pipe 4093 and a plurality of second pipes 4092, the main pipe 4091 is used for conveying liquid into the tower 401; the first pipe body 4093 is annularly arranged on the top of the guide cylinder 406; the plurality of second pipe bodies 4092 are respectively communicated with the main pipe 4091 and the first pipe body 4093 and used for conveying liquid in the main pipe 4091 into the second pipe bodies 4092, and the first pipe body 4093 and the second pipe body 4092 are respectively provided with spray holes with downward openings.
The liquid enters the tower body 401 along the main pipe 4091, then is conveyed to the first pipe 4093 through the second pipe 4092, and is sprayed into the tower body 401, so that the liquid can be uniformly sprayed into the guide cylinder 406, and the reaction efficiency of the liquid and the blast furnace gas is improved.
Optionally, two ends of the second tube 4092 are respectively communicated with two opposite sides of the first tube 4093.
Referring to fig. 2, the filter assembly 404 includes a filter net detachably connected to the tower 401.
When the blast furnace gas passes through the filter screen, the large granule impurity that wherein contains is blockked in the filter screen lower part or adsorbs on the filter screen, and blast furnace gas passes through the filter screen and upwards circulates, when adsorbing on the filter screen and having too much impurity, can dismantle the filter screen and wash or change, avoids impurity to gather and influences the filter effect on the filter screen.
Optionally, the filter screen can be equipped with a plurality ofly, and the aperture of a plurality of filter screens reduces from bottom to top in proper order to filter the impurity of different particle sizes.
Optionally, the tower body 401 lateral wall is equipped with the dog, and the filter screen overlap joint is on the dog, conveniently dismantles the filter screen.
Referring to fig. 2, the settling assembly includes a box body 405 and a flushing pipe 4015, a containing cavity 403 for containing settling fillers is arranged in the box body 405, and the top and the bottom of the box body 405 are respectively provided with a liquid-permeable hole 4018; a purge pipe 4015 is provided below the tank 405 to inject a purge liquid into the tank 405.
The particulate matters filtered by the filter assembly 404 are mixed with the liquid sprayed by the spray assembly, and fall into the box body 405 through the liquid-permeable holes 4018 under the action of gravity, the particulate matters are adsorbed and settled on the surface of the settling filler under the action of the settling filler, and the liquid flows out of the box body 405 to the bottom of the tower body 401. After the device is used for a period of time, a large amount of particulate matters adhere to the surface of the sedimentation filler to influence the sedimentation effect, cleaning liquid is sprayed into the box body 405 through the washing pipe 4015 to wash the particulate matters on the surface of the sedimentation filler, and the washed particulate matters flow to the bottom of the tower body 401 through the liquid permeable holes 4018.
Optionally, the clear liquid obtained after settling can be recycled.
Optionally, the diameter of the liquid permeable pores 4018 is smaller than the particle size of the sedimented packing.
Optionally, the sedimentation filler may be one or more of quartz sand, ceramsite or activated carbon.
Referring to fig. 1 to 4, the settling assembly further includes a settling plate 4019, the settling plate 4019 is disposed below the flushing pipe 4015 and detachably connected to the tower body 401, and the settling plate 4019 is provided with filtering holes.
The settled liquid falls down to the settling plate 4019, wherein impurities contained therein are blocked by the settling plate 4019, and the liquid flows down to the bottom of the tower body 401 through the filtering holes, further filtering out a relatively clear liquid. When excessive impurities are accumulated on the settling plate 4019, the settling plate 4019 is detached for cleaning or replacement, and the filtering effect is improved.
Referring to fig. 1 to 4, the conversion device 4 further includes a liquid supply tank 4014, a draft tube 4013 and a circulation tube 4010, wherein the liquid supply tank 4014 is disposed outside the tower body 401; the upper end of the diversion tube 4013 is connected with the spray pipe 409, the lower end of the diversion tube 4013 extends into the liquid supplementing box 4014 and is used for pouring liquid in the liquid supplementing box 4014 into the spray pipe 409, and the diversion tube 4013 is provided with a third switch 4012; the liquid inlet end of the circulating pipe 4010 is connected with the tower body 401 and is arranged below the settling plate 4019, the top end of the circulating pipe 4010 is connected with the spray pipe 409, and a fourth switch 4011 is arranged on the circulating pipe 4010.
Clear liquid is obtained after the sedimentation of the sedimentation component, the liquid is accumulated at the bottom of the tower body 401, the fourth switch 4011 is opened, the third switch 4012 is closed, the obtained liquid is introduced into the circulating pipe 4010 again through the jet pipe through the circulating pipe 4010 for cyclic utilization, and the production cost is reduced. When the obtained settled liquid is cloudy or the settling component is cleaned, the fourth opening is closed, the third switch 4012 is opened, and the liquid in the liquid supplementing box 4014 is introduced into the spray pipe 409 through the draft tube 4013. By adopting the structure, the waste of liquid can be reduced, and the production cost is reduced.
Optionally, the bottom of the tower body 401 is provided with a liquid outlet 407, when the sedimentation assembly is cleaned, the cleaned liquid can be discharged from the liquid outlet 407,
optionally, a third regulating valve is disposed on the liquid outlet 407.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Blast furnace gas fine desulfurization system, its characterized in that includes blast furnace, dust collector, conversion equipment, turbine, pressure relief device and desulphurization unit, wherein:
the blast furnace, the dust removal device, the conversion device, the turbine and the desulfurization device are sequentially connected to form a first passage;
the blast furnace, the dust removal device, the turbine and the desulfurization device are sequentially connected to form a second passage; and
the blast furnace, the dust removal device, the conversion device, the pressure reduction device and the desulfurization device are sequentially connected to form a third passage;
in normal operation, blast furnace gas flows along the first path; when the switching device fails, blast furnace gas flows along the second path; when the turbine fails, blast furnace gas flows along the third path.
2. The blast furnace gas fine desulfurization system according to claim 1, wherein the discharge port of the dust removing device is respectively communicated with the feed port of the conversion device and the feed port of the turbine through discharge pipes, and the discharge pipe corresponding to the turbine is provided with a first switch.
3. The blast furnace gas fine desulfurization system according to claim 2, wherein the feed inlet of the desulfurization device is respectively communicated with the discharge outlet of the pressure reduction device and the discharge outlet of the turbine through feed pipes, and a second switch is arranged on the discharge pipe corresponding to the pressure reduction device.
4. The blast furnace gas fine desulfurization system according to claim 3, wherein the discharge port of the shift device is communicated with the feed port of the pressure reduction device and the discharge port of the turbine through intermediate pipes, respectively.
5. The blast furnace gas fine desulfurization system according to claim 1, wherein the shift device comprises:
the tower body is provided with an air inlet arranged at the lower part and an air outlet arranged at the top;
the spraying assembly is arranged at the upper part of the tower body and is used for spraying liquid into the tower body;
the filtering assembly is arranged at the lower part of the spraying assembly and is used for filtering impurities in the blast furnace gas; and
and the sedimentation component is arranged at the lower part of the filtering component and is used for settling the liquid after reaction.
6. The blast furnace gas fine desulfurization system according to claim 5, wherein the spray assembly comprises:
the guide cylinder is a conical cylindrical component with the diameter sequentially increased from top to bottom;
the spiral disc is arranged in the guide cylinder, the outer edge of the guide plate is connected to the inner wall of the guide cylinder, and the guide plate is used for enabling blast furnace gas and liquid sprayed by the spraying assembly to form rotational flow; and
and the spray pipe is arranged at the top of the guide cylinder and used for spraying liquid into the guide cylinder.
7. The blast furnace gas fine desulfurization system according to claim 6, wherein the shower pipe comprises:
the main pipe is used for conveying liquid into the tower body;
the first pipe body is annularly arranged at the top of the guide cylinder; and
and the plurality of second pipe bodies are respectively communicated with the main pipe and the first pipe body and used for conveying the liquid in the main pipe to the second pipe bodies, and the first pipe bodies and the second pipe bodies are provided with spray holes with downward openings.
8. The blast furnace gas fine desulfurization system according to claim 5, wherein the settling assembly comprises:
the box body is internally provided with a containing cavity for containing the sedimentation filler, and the top and the bottom of the box body are respectively provided with a liquid permeation hole; and
and the flushing pipe is arranged below the box body and is used for spraying cleaning liquid into the box body.
9. The blast furnace gas fine desulfurization system of claim 8, wherein the settling assembly further comprises a settling plate, the settling plate is arranged below the flushing pipe and is detachably connected with the tower body, and the settling plate is provided with a filter hole.
10. The blast furnace gas fine desulfurization system according to claim 9, wherein the shift device further comprises:
the liquid supplementing box is arranged outside the tower body;
the upper end of the flow guide pipe is connected with the spray pipe, the lower end of the flow guide pipe extends into the liquid supplementing box and is used for pouring liquid in the liquid supplementing box into the spray pipe, and a third switch is arranged on the flow guide pipe; and
and the liquid inlet end of the circulating pipe is connected with the tower body and is arranged below the sedimentation plate, the top end of the circulating pipe is connected with the spray pipe, and the circulating pipe is provided with a fourth switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110372124.2A CN113186001A (en) | 2021-04-07 | 2021-04-07 | Blast furnace gas fine desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110372124.2A CN113186001A (en) | 2021-04-07 | 2021-04-07 | Blast furnace gas fine desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113186001A true CN113186001A (en) | 2021-07-30 |
Family
ID=76974812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110372124.2A Pending CN113186001A (en) | 2021-04-07 | 2021-04-07 | Blast furnace gas fine desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113186001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652266A (en) * | 2021-08-17 | 2021-11-16 | 新兴铸管股份有限公司 | Blast furnace gas desulfurization device and blast furnace gas desulfurization system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120247080A1 (en) * | 2010-03-29 | 2012-10-04 | Hiromi Ishii | Integrated coal gasification combined cycle plant |
| CN211537240U (en) * | 2020-01-08 | 2020-09-22 | 成都泰润环境工程有限公司 | Spraying device |
| CN111944563A (en) * | 2020-09-15 | 2020-11-17 | 中冶华天工程技术有限公司 | Novel blast furnace gas desulfurization system |
| CN112195043A (en) * | 2020-09-28 | 2021-01-08 | 武汉钢铁有限公司 | Blast furnace gas desulfurization method and device |
| CN213101413U (en) * | 2020-07-11 | 2021-05-04 | 河北一诺特环保科技有限公司 | Cyclone spray tower |
-
2021
- 2021-04-07 CN CN202110372124.2A patent/CN113186001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120247080A1 (en) * | 2010-03-29 | 2012-10-04 | Hiromi Ishii | Integrated coal gasification combined cycle plant |
| CN211537240U (en) * | 2020-01-08 | 2020-09-22 | 成都泰润环境工程有限公司 | Spraying device |
| CN213101413U (en) * | 2020-07-11 | 2021-05-04 | 河北一诺特环保科技有限公司 | Cyclone spray tower |
| CN111944563A (en) * | 2020-09-15 | 2020-11-17 | 中冶华天工程技术有限公司 | Novel blast furnace gas desulfurization system |
| CN112195043A (en) * | 2020-09-28 | 2021-01-08 | 武汉钢铁有限公司 | Blast furnace gas desulfurization method and device |
Non-Patent Citations (1)
| Title |
|---|
| 《化工百科全书》编辑委员会: "《化工百科全书（第10卷）》", 30 April 1996, 化学工业出版社, pages: 767 - 768 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652266A (en) * | 2021-08-17 | 2021-11-16 | 新兴铸管股份有限公司 | Blast furnace gas desulfurization device and blast furnace gas desulfurization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209423325U (en) | A kind of high-efficiency spray tower | |
| CN110510773B (en) | Acidic mine water treatment system and method | |
| CN101597529B (en) | Methane bio-desulfurization device | |
| CN213995388U (en) | High-efficient desulfurization dust remover of rotatory double-deck fountain suitable for boiler flue gas | |
| CN113186001A (en) | Blast furnace gas fine desulfurization system | |
| CN102527219B (en) | Smoke gas wet method sulfur removal and dust removal integral treatment system | |
| CN215506351U (en) | Desulfurization absorbent purifies regeneration system | |
| CN202715350U (en) | Wet desulfurization adsorption tower with multi-effect turbulence system | |
| CN216062697U (en) | Inside and outside bucket self-loopa airlift wet flue gas desulfurization device | |
| CN211513642U (en) | Solution filtering device | |
| CN209816051U (en) | Natural gas desulfurization device | |
| CN112973188A (en) | System for deeply treating slurry foaming of desulfurization absorption tower | |
| CN211189630U (en) | A smoke and dust purifier for zinc oxide production | |
| CN211635955U (en) | Flue gas desulfurization ultra-clean discharging equipment | |
| CN113559707A (en) | Limestone-gypsum wet flue gas desulfurization absorbent purification and regeneration system and method thereof | |
| CN209985141U (en) | Bottom gas device of dispersion tower | |
| CN215232264U (en) | Device for eliminating foam in slurry of desulfurization absorption tower | |
| CN219217725U (en) | Anaerobic reactor | |
| CN205164294U (en) | A gypsum discharge system for desulphurization unit of sintering system | |
| CN105776652A (en) | Excess sludge-reinforced adsorption-membrane separation water treatment facility and method | |
| CN214734960U (en) | Coal gasification wastewater two-stage treatment unit | |
| CN205087961U (en) | Boats and ships desulfurization wastewater treatment system | |
| CN221028293U (en) | Natural gas raw gas pretreatment purifier | |
| CN104003476A (en) | Electrolytic manganese wastewater ion exchange treatment system adopting aeration type ion exchange devices | |
| CN210506243U (en) | Biogas biological desulfurization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210730 |
|
| RJ01 | Rejection of invention patent application after publication |