CN215975685U - Blast furnace gas dehydration desulfurizing tower - Google Patents
Blast furnace gas dehydration desulfurizing tower Download PDFInfo
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- CN215975685U CN215975685U CN202122694038.1U CN202122694038U CN215975685U CN 215975685 U CN215975685 U CN 215975685U CN 202122694038 U CN202122694038 U CN 202122694038U CN 215975685 U CN215975685 U CN 215975685U
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- 230000018044 dehydration Effects 0.000 title claims abstract description 48
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 48
- 230000003009 desulfurizing effect Effects 0.000 title claims description 5
- 238000012856 packing Methods 0.000 claims abstract description 52
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 41
- 230000023556 desulfurization Effects 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 41
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000003568 thioethers Chemical class 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 claims 5
- 238000009529 body temperature measurement Methods 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 88
- 238000000034 method Methods 0.000 description 12
- 239000002808 molecular sieve Substances 0.000 description 12
- 125000001741 organic sulfur group Chemical group 0.000 description 12
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 9
- 239000000945 filler Substances 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 9
- 239000011593 sulfur Substances 0.000 description 9
- 238000011282 treatment Methods 0.000 description 6
- 238000003795 desorption Methods 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
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- 230000014759 maintenance of location Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- -1 H)2S) Chemical compound 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910017318 Mo—Ni Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QZYDAIMOJUSSFT-UHFFFAOYSA-N [Co].[Ni].[Mo] Chemical compound [Co].[Ni].[Mo] QZYDAIMOJUSSFT-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
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- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
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- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
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- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The utility model relates to a blast furnace gas dehydration and desulfurization tower which comprises a tower body, wherein a gas inlet and a gas outlet are arranged on the tower body, a dehydration device for removing water in the blast furnace gas and a plurality of packing layers for removing sulfides in the blast furnace gas are sequentially arranged in the tower body from the gas inlet to the gas outlet, adsorbing materials which have adsorption capacity and can be desorbed and regenerated after being heated are respectively filled on each packing layer, and a plurality of temperature and pressure measuring devices for detecting the temperature and the pressure at the corresponding positions of the packing layers in the tower body are arranged on the tower body. The utility model solves the technical problem of poor effect of removing sulfides and water in the blast furnace gas.
Description
Technical Field
The utility model relates to the field of blast furnace gas treatment, in particular to a blast furnace gas dehydration and desulfurization tower.
Background
Blast furnace gas is a byproduct generated in an iron-making process, and is colorless, tasteless and combustible; in addition, the method has the characteristics of low heat value, large gas production rate, high organic sulfur content and the like. The desulfurization of blast furnace gas requires the removal of inorganic sulfur (such as H)2S), and organic sulfur removal (e.g.: COS, CS2Etc.), wherein hydrogen sulfide is relatively easy to remove, while organic sulfur is difficult to remove.
After pressure energy and heat energy are recovered, blast furnace gas is used as fuel to be combusted, and the discharged flue gas mainly contains SO2Generally, the content is 45mg/m3To 185mg/m3And meanwhile, the waste gas is required to be purified and then discharged after reaching the standard. With the strict environmental protection requirement, SO in the flue gas2Emission limit of 35mg/m3. The traditional desulfurization method is mainly tail end treatment, and flue gas desulfurization is arranged behind each user point, so that the defects of more desulfurization facilities, difficult management, more desulfurization byproducts, secondary pollution, large investment, large water consumption and the like are caused; the blast furnace gas source treatment generally adopts hydrolysis to convert organic sulfur into inorganic sulfur and then adopts a wet method to remove hydrogen sulfide, and has the defects of large resistance loss, large water consumption, difficult treatment of secondary salt and the like.
Aiming at the problem of poor removing effect on sulfides and water in blast furnace gas in the related technology, no effective solution is provided at present.
Therefore, the inventor provides the blast furnace gas dehydration desulfurization tower by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a blast furnace gas dehydration and desulfurization tower which can respectively remove organic sulfur, inorganic sulfur and water in blast furnace gas, has the advantages of simple structure, simple and convenient operation, low cost, small resistance loss, no secondary pollution and the like, and is suitable for popularization and use.
The purpose of the utility model can be realized by adopting the following technical scheme:
the utility model provides a blast furnace gas dehydration and desulfurization tower which comprises a tower body, wherein a gas inlet and a gas outlet are arranged on the tower body, a dehydration device for removing water in the blast furnace gas and a plurality of packing layers for removing sulfides in the blast furnace gas are sequentially arranged in the tower body from the gas inlet to the gas outlet, adsorbing materials with adsorption capacity and capable of desorbing and regenerating after being heated are respectively filled on each packing layer, and a plurality of temperature and pressure measuring devices for detecting the temperature and the pressure at the corresponding positions of the packing layers in the tower body are arranged on the tower body.
In a preferred embodiment of the utility model, the tower body comprises a cylinder body, a first seal head and a second seal head, the cylinder body is of a cylindrical structure with two open ends arranged along the vertical direction, the first seal head and the second seal head are respectively sealed at the top end opening and the bottom end opening of the cylinder body, and the dehydration device and each packing layer are sequentially arranged at intervals along the vertical direction from bottom to top.
In a preferred embodiment of the present invention, the cross section of the first sealing head is in an arc shape or a sharp angle shape protruding upwards; the cross section of the second seal head is in a downward convex arc shape or a sharp-angled shape.
In a preferred embodiment of the present invention, the air outlet is located at the middle position of the top of the first sealing head, the air inlet is located on the bottom side wall of the cylinder, and the height of the air inlet is smaller than the setting height of the dewatering device.
In a preferred embodiment of the present invention, an air inlet pipe is disposed at the air inlet, one end of the air inlet pipe is located outside the cylinder, and the other end of the air inlet pipe extends into the cylinder, and the cross section of the air inlet pipe is an oblique opening that gradually inclines toward the inner wall of the cylinder from top to bottom.
In a preferred embodiment of the present invention, the air inlet pipe extends in a horizontal direction, and a length of the air inlet pipe extending into the cylinder is smaller than a radius of the cylinder.
In a preferred embodiment of the utility model, a sewage draining outlet is arranged in the middle of the bottom of the second sealing head, and a sewage draining pipe is connected to the sewage draining outlet.
In a preferred embodiment of the present invention, a first filling port is disposed at the top of the first sealing head, and second filling ports are respectively disposed on the side wall of the cylinder and above the packing layer.
In a preferred embodiment of the present invention, both the diameter of the first charging port and the diameter of the second charging port are greater than or equal to 600 mm.
In a preferred embodiment of the present invention, a first temperature and pressure measuring port is disposed at the top of the first sealing head, second temperature and pressure measuring ports are respectively disposed on the side wall of the cylinder and above the packing layer, and the temperature and pressure measuring devices are respectively disposed at the first temperature and pressure measuring port and each of the second temperature and pressure measuring ports.
In a preferred embodiment of the present invention, the temperature and pressure measuring device is a temperature sensor and a pressure sensor.
In a preferred embodiment of the present invention, the filler layer includes a filler support structure, the filler support structure is connected to the inner wall of the cylinder, and the adsorbing material is filled on the top of the filler support structure.
In a preferred embodiment of the present invention, the packing support structure is a grid plate or a screen.
In a preferred embodiment of the present invention, the height of each filler layer is greater than or equal to 300mm and less than or equal to 2500 mm.
In a preferred embodiment of the present invention, the adsorbing material filled in each filler layer is spherical, strip-shaped and/or honeycomb-shaped.
In a preferred embodiment of the present invention, the dewatering device is a rotational flow plate.
In a preferred embodiment of the present invention, a skirt is disposed at the bottom of the tower body, and a skirt inspection hole is disposed in the skirt.
In a preferred embodiment of the present invention, the tower body is made of carbon steel, and the inner wall of the tower body is coated with a high temperature resistant and corrosion resistant layer, and the outer wall of the tower body is provided with an insulating layer.
From the above, the blast furnace gas dehydration desulfurization tower of the present invention has the characteristics and advantages that: the dehydration device and the plurality of packing layers are sequentially arranged in the tower body from the gas inlet to the gas outlet, and in the process that the blast furnace gas enters the tower body through the gas inlet and is discharged from the gas outlet, the mechanical water in the blast furnace gas is removed through the dehydration device, and then the inorganic sulfur and the organic sulfur in the blast furnace gas are synchronously adsorbed through the packing layers, so that the influence of the mechanical water on an end user is reduced, the sulfides can be fully removed, the operation is simple and convenient, no secondary pollution is caused, and the desulfurization effect is good; in addition, the adsorbing material in the utility model can be used for dehydration, desulfurization and desorption regeneration, can be reused, has low investment and low resistance loss, effectively improves the use efficiency, and is suitable for popularization and use.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: is a structural schematic diagram of the blast furnace gas dehydration desulfurization tower.
The reference numbers in the utility model are:
1. a tower body; 101. A barrel;
102. a first end enclosure; 103. A second end enclosure;
2. a filler layer; 201. A filler support structure;
3. a skirt; 4. A dewatering device;
5. an air inlet; 6. An air outlet;
7. a first charging port; 8. A second charging port;
9. a blow-off pipe; 10. Skirt inspection holes;
11. a first temperature and pressure measuring port; 12. A second temperature and pressure measuring port;
13. an air inlet pipe.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a blast furnace gas dehydration and desulfurization tower, which comprises a tower body 1, wherein the tower body 1 is provided with a gas inlet 5 and a gas outlet 6 which are communicated with the inside of the tower body 1, the inside of the tower body 1 is sequentially provided with a dehydration device 4 and a plurality of packing layers 2 from the gas inlet 5 to the gas outlet 6, the dehydration device 4 is used for removing water (namely mechanical water) in the blast furnace gas, each packing layer 2 is matched with the other to remove sulfides (including organic sulfur and inorganic sulfur) in the blast furnace gas, each packing layer 2 is respectively filled with an adsorption material which has adsorption capacity and can be desorbed and regenerated after being heated, and the tower body 1 is provided with a plurality of temperature measuring devices for detecting the temperature and the pressure at the corresponding positions of each packing layer 2 in the tower body 1.
According to the utility model, the dehydration device 4 and the multiple packing layers 2 are sequentially arranged in the tower body 1 from the gas inlet 5 to the gas outlet 6, and in the process that the blast furnace gas enters the tower body 1 through the gas inlet 5 and is discharged from the gas outlet 6, the mechanical water in the blast furnace gas is removed through the dehydration device 4, and then the inorganic sulfur and organic sulfur in the blast furnace gas are synchronously adsorbed through the packing layers 2, so that the influence of the mechanical water on a terminal user is reduced, sulfides can be fully removed, the operation is simple and convenient, no secondary pollution is caused, and the desulfurization effect is good; the adsorption material not only dehydrates but also desulfurizes in the working process, can also be desorbed and regenerated, can be reused, has small investment and resistance loss, and effectively improves the use efficiency.
Specifically, as shown in fig. 1, the tower body 1 includes a cylinder 101, a first seal head 102 and a second seal head 103, the cylinder 101 is a cylindrical structure with two open ends arranged along the vertical direction, the first seal head 102 is plugged at the top opening of the cylinder 101, the second seal head 103 is plugged at the bottom opening of the cylinder 101, the gas outlet 6 is located at the top middle position of the first seal head 102, the gas inlet 5 is located on the bottom side wall of the cylinder 101, the height of the gas inlet 5 is smaller than the height of the dewatering device 4, and the dewatering device 4 and each packing layer 2 are sequentially arranged from bottom to top at intervals along the vertical direction.
Further, the tower body 1 can be made of carbon steel, but is not limited to, and the inner wall of the tower body 1 is coated with a high-temperature-resistant anticorrosive layer formed by anticorrosive paint, so that the strength and the corrosion resistance of the tower body 1 are effectively ensured, and the service cycle of the tower body 1 is prolonged. The outer wall of the tower body 1 is provided with a heat preservation layer to improve the heat preservation capability of the tower body 1.
Further, the cylinder 101, the first seal head 102 and the second seal head 103 are fixed by welding, so that the stability of the tower body 1 is effectively improved.
Further, as shown in fig. 1, the cross section of the first sealing head 102 is in an arc shape or a sharp angle shape protruding upwards; the cross section of the second seal head 103 is in the shape of an arc or a sharp corner protruding downwards, the first seal head 102 has a drainage effect on blast furnace gas, so that the gas can be smoothly discharged, and the second seal head 103 is convenient for discharging pollution outwards.
Furthermore, the dewatering device 4 is a rotational flow plate, and mechanical water in the blast furnace gas is removed by changing the flow direction of the blast furnace gas, so that the water content entering subsequent gas users is reduced.
In an alternative embodiment of the utility model, the height of each packing layer 2 is greater than or equal to 300mm and less than or equal to 2500mm (namely, the height is greater than or equal to 300mm and less than or equal to 2500mm), and a space is reserved between two adjacent packing layers 2 to ensure that sulfides in the blast furnace gas are fully adsorbed.
Furthermore, the adsorbing materials filled in each filler layer 2 are spherical, strip-shaped and/or honeycomb-shaped. The honeycomb-shaped adsorbing material has the characteristics of low resistance loss and short retention time; the spherical and strip-shaped adsorbing materials have the characteristics of large specific surface area, long retention time and large resistance loss. According to the utility model, the adsorbing materials filled in the packing layer 2 positioned at the lowest part are spherical or strip-shaped, the adsorbing materials filled in other packing layers 2 are spherical, strip-shaped and/or honeycomb-shaped in any shape, sulfides in the blast furnace gas are fully adsorbed and removed by the adsorbing materials in the packing layer 2 at the lowest part, and then the remaining sulfides in the blast furnace gas are adsorbed and removed by the adsorbing materials in other packing layers 2, so that a good desulfurization effect is ensured. Of course, the shape of the adsorbent in each packing layer 2 may be adjusted as necessary to ensure sufficient adsorption of the sulfides in the blast furnace gas.
In the present invention, the adsorbing material may be made of a material containing at least one element selected from the group consisting of magnesium, calcium, strontium, yttrium, lanthanum, cerium, europium, iron, cobalt, nickel, copper, silver, and zinc.
Further, the adsorbing material is a hydrophobic microcrystalline material which is selected from at least one of an X-type molecular sieve, a Y-type molecular sieve, an A-type molecular sieve, a ZSM-type molecular sieve, mordenite, a beta-type molecular sieve, an MCM-type molecular sieve and a SAPO-type molecular sieve. Wherein the catalyst for converting organic sulfur into inorganic sulfur comprises Fe-Co-Mn-Mo-Ni catalyst, CO-K-Al2O3And ZrO2/TiO2Is at least one of the catalysts.
Specifically, the adsorption material can adopt a copper-modified ZSM-5 molecular sieve material or a zinc-modified ZSM-5 molecular sieve material, wherein the silicon-aluminum ratio of the molecular sieve material is 150, a ZSM type molecular sieve adsorbent and the like, wherein the ZSM-type molecular sieve adsorbent contains a cobalt-molybdenum-nickel catalyst. The adsorption material has the capacity of adsorbing organic sulfur and inorganic sulfur in the temperature range of 20-80 ℃, has the capacity of desorption regeneration in the temperature range of 160-350 ℃, has hydrophobicity, and does not absorb moisture.
In an alternative embodiment of the present invention, as shown in fig. 1, an air inlet pipe 13 is fixedly disposed at the air inlet 5, the air inlet pipe 13 extends along a horizontal direction, one end of the air inlet pipe 13 is located outside the cylinder 101, the other end of the air inlet pipe 13 extends into the cylinder 101, and a cross section of the end of the air inlet pipe 13 is an oblique opening that gradually inclines towards an inner wall of the cylinder 101 from top to bottom, so that disturbance capacity to the blast furnace gas is increased through the oblique opening of the air inlet pipe 13 in a process that the blast furnace gas enters the tower body 1, so that the blast furnace gas is uniformly dispersed after entering the tower body 1, thereby improving a treatment effect on the blast furnace gas. Because the purpose of desulfurization is achieved by adsorbing sulfides in the blast furnace gas through the adsorbing material, the optimal adsorption effect can be achieved only by ensuring that the blast furnace gas is uniformly and fully contacted with the adsorbing material, and in the utility model, the effect can be achieved only by arranging the oblique opening at the end of the air inlet pipe 13 extending into the cylinder 101, so that the full desulfurization of the adsorption desulfurization tower 1 is realized.
Further, as shown in fig. 1, the length of the air inlet pipe 13 extending into the cylinder 101 is smaller than the radius of the cylinder 101, so that the blast furnace gas can be dispersed in the tower body 1 along the flow direction of the blast furnace gas after entering the tower body 1, and the uniformity of the dispersion of the blast furnace gas in the tower body 1 is improved.
Further, the inclined angle of the oblique opening of the air inlet pipe 13 may be, but is not limited to, 60 ℃.
In an optional embodiment of the utility model, as shown in fig. 1, a sewage draining outlet is arranged in the middle of the bottom of the second end enclosure 103, a sewage draining pipe 9 is connected to the sewage draining outlet, and a three-way valve is mounted on the sewage draining pipe 9, so that sewage can be drained, impurities in the sewage draining pipe 9 can be removed, and the long-term conduction state of the sewage draining pipe 9 is ensured.
In an alternative embodiment of the present invention, as shown in fig. 1, a first charging port 7 is provided at the top of the first head 102, the first charging port 7 is vertically communicated with the inside of the tower body 1, second charging ports 8 are respectively provided on the side wall of the cylinder 101 and above the corresponding packing layer 2, and each second charging port 8 is horizontally communicated with the inside of the tower body 1. The diameter of the first charging hole 7 and the diameter of the second charging hole 8 are both larger than or equal to 600mm (namely, the diameter DN is larger than or equal to 600mm), so that the adsorption materials can smoothly enter the tower body 1 when being charged, and the first charging hole 7 and the second charging hole 8 can also be used as manholes, thereby being convenient for workers to check and maintain.
In an alternative embodiment of the present invention, as shown in fig. 1, a first temperature and pressure measuring port 11 is provided at the top of the first sealing head 102, second temperature and pressure measuring ports 12 are respectively provided on the side wall of the cylinder 101 and above the corresponding packing layer 2, and temperature and pressure measuring devices are respectively provided at the first temperature and pressure measuring port 11 and each second temperature and pressure measuring port 12. The temperature and the pressure of the positions of different packing layers 2 in the tower body 1 are respectively detected in real time through the temperature and pressure measuring devices, and the temperature and pressure measuring devices have the functions of remote transmission and online display. Wherein, the temperature range needs to be controlled between minus 10 ℃ and 500 ℃, and the pressure range needs to be controlled between 0 MPa and 0.1MPa, so that the adsorption and desorption regeneration operations of the adsorption material in the tower body 1 are adjusted according to the temperature and pressure parameters.
Further, the temperature and pressure measuring device can be, but is not limited to, a temperature sensor and a pressure sensor which are used together.
In an alternative embodiment of the present invention, as shown in fig. 1, the packing layer 2 includes a packing support structure 201, the packing support structure 201 is connected to the inner wall of the cylinder 101, and the adsorbing material is packed on the top of the packing support structure 201. Wherein the packing support structure 201 may be, but is not limited to, a grid plate or a screen.
In an alternative embodiment of the utility model, as shown in fig. 1, a skirt 3 is arranged at the bottom of the tower body 1, the top of the skirt 3 is welded and fixed with the outer wall of the bottom of the cylinder 101, the bottom of the skirt 3 is stably placed on an installation plane, and a skirt inspection hole 10 is arranged on the skirt 3 for the inspection and maintenance of workers.
The working process of the blast furnace gas dehydration and desulfurization tower comprises the following steps: because the temperature of the air inlet of the TRT power generation device is generally between 150 ℃ and 210 ℃ and the temperature of the air outlet of the TRT power generation device is between 80 ℃ and 120 ℃ (most of the air is about 100 ℃, the highest temperature can reach 150 ℃) in a normal state, and the optimal active adsorption temperature of the adsorption material is between 50 ℃ and 80 ℃, the blast furnace gas with the temperature higher than 80 ℃ needs to be sprayed by a spray cooling device before entering the tower body 1The temperature of the blast furnace gas is reduced to below 80 ℃ by cooling the gas, and then the blast furnace gas enters the tower body 1 through the gas inlet 5. The blast furnace gas entering the tower body 1 is firstly dehydrated by the dehydration device 4 to remove the mechanical water carried in the blast furnace gas and is discharged outside by the blow-off pipe 9 so as to reduce the water content in the gas of the end user; the blast furnace gas after dehydration passes through each packing layer 2 in sequence, and the adsorbing materials in each packing layer 2 are used for adsorbing H in the blast furnace gas in the process2S, organic sulfur, Cl < - > and dust and other impurities are adsorbed, and the purified blast furnace gas is sent to an end user for use from a gas outlet 6. When desorption regeneration is performed on the adsorbent in each packing layer 2, a small amount of clean blast furnace gas (about 2000 m) needs to be extracted in advance3H is 6000m3H) and heated to 160-350 ℃, and then introduced into the tower body 1 from the gas outlet 6, the adsorption materials in the packing layers 2 are heated by the part of purified blast furnace gas, the temperature and the pressure at the corresponding positions in the tower body 1 are detected in real time by the temperature and pressure measuring devices, when the temperature is detected to reach the set temperature, heat is preserved, the impurities adsorbed in the adsorption materials are taken out by the high-temperature purified blast furnace gas, so that the adsorption materials can be desorbed and regenerated, the desorbed blast furnace gas and harmful gas are discharged from the gas inlet 5 and sent to a sintering section for subsequent combustion and other treatments. Wherein: in the desorption regeneration process, the heat of the adsorption material is preserved for about 1 day after the adsorption material is heated, then the adsorption material is cooled, and the adsorption material is regenerated after being cooled and can be repeatedly used.
The blast furnace gas dehydration desulfurization tower of the utility model has the characteristics and advantages that:
in the blast furnace gas dehydration desulfurization tower, the dehydration device 4 is matched with the plurality of packing layers 2 for use, so that dehydration and desulfurization are realized, the influence on an end user is reduced, and the blast furnace gas dehydration desulfurization tower has the advantages of small investment, small resistance loss, high efficiency and the like.
Secondly, in the blast furnace gas dehydration desulfurization tower, the adsorption material (especially the hydrophobic adsorption material) is adopted to adsorb the sulfide in the blast furnace gas, so that the inorganic sulfur and the organic sulfur can be removed, the operation is simple, the secondary pollution is avoided, and the method is suitable for popularization and use.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should fall within the protection scope of the utility model.
Claims (18)
1. The blast furnace gas dehydration and desulfurization tower is characterized by comprising a tower body, wherein a gas inlet and a gas outlet are arranged on the tower body, a dehydration device for removing water in the blast furnace gas and a plurality of packing layers for removing sulfides in the blast furnace gas are sequentially arranged in the tower body from the gas inlet to the gas outlet, adsorbing materials with adsorption capacity and capable of desorbing and regenerating after being heated are respectively filled on each packing layer, and a plurality of temperature and pressure measuring devices for detecting the temperature and the pressure at the corresponding positions of the packing layers in the tower body are arranged on the tower body.
2. The blast furnace gas dehydration and desulfurization tower of claim 1, wherein the tower body comprises a cylinder body, a first seal head and a second seal head, the cylinder body is a cylindrical structure with two open ends arranged along the vertical direction, the first seal head and the second seal head are respectively sealed at the top opening and the bottom opening of the cylinder body, and the dehydration device and each packing layer are sequentially arranged at intervals along the vertical direction from bottom to top.
3. The blast furnace gas dehydration desulfurization tower of claim 2, wherein the cross section of the first head is in the shape of an arc or a sharp corner which is convex upward; the cross section of the second seal head is in a downward convex arc shape or a sharp-angled shape.
4. The blast furnace gas dehydration desulfurization tower of claim 2, wherein the gas outlet is located at the middle position of the top of the first sealing head, the gas inlet is located on the bottom side wall of the cylinder body, and the height of the gas inlet is smaller than the setting height of the dehydration device.
5. The blast furnace gas dehydration and desulfurization tower of claim 4, wherein an air inlet pipe is arranged at the air inlet, one end of the air inlet pipe is positioned outside the cylinder, the other end of the air inlet pipe extends into the cylinder, and the cross section of the air inlet pipe is an oblique opening which gradually inclines towards the inner wall of the cylinder from top to bottom.
6. The blast furnace gas dewatering and desulfurizing tower of claim 5, wherein the gas inlet pipe extends horizontally, and the length of the gas inlet pipe extending into the barrel is smaller than the radius of the barrel.
7. The blast furnace gas dehydration and desulfurization tower of claim 2, wherein a sewage discharge outlet is arranged at the middle position of the bottom of the second sealing head, and a sewage discharge pipe is connected to the sewage discharge outlet.
8. The blast furnace gas dehydration and desulfurization tower of claim 2, wherein the top of the first sealing head is provided with a first charging port, and the side walls of the cylinder body are respectively provided with a second charging port at a position corresponding to the upper part of the packing layer.
9. The blast furnace gas dehydration desulfurization tower of claim 8, characterized in that the diameter of the first charging port and the diameter of the second charging port are both greater than or equal to 600 mm.
10. The blast furnace gas dehydration and desulfurization tower of claim 2, wherein a first temperature and pressure measurement port is provided at the top of the first sealing head, second temperature and pressure measurement ports are respectively provided at positions on the side wall of the cylinder body and above the packing layer, and the temperature and pressure measurement devices are respectively provided at the first temperature and pressure measurement port and each of the second temperature and pressure measurement ports.
11. The blast furnace gas dewatering and desulfurizing tower of claim 1 or 10, wherein the temperature and pressure measuring devices are a temperature sensor and a pressure sensor.
12. The blast furnace gas dehydration desulfurization tower of claim 2, wherein the packing layer comprises a packing support structure, the packing support structure is connected with the inner wall of the cylinder, and the adsorption material is packed on the top of the packing support structure.
13. The blast furnace gas dehydration desulfurization tower of claim 12, characterized in that the packing support structure is a grid plate or a screen.
14. The blast furnace gas dewatering and desulfurizing tower of claim 1, wherein the height of each packing layer is greater than or equal to 300mm and less than or equal to 2500 mm.
15. The blast furnace gas dehydration desulfurization tower of claim 1, characterized in that the adsorption material packed in each packing layer is spherical, strip-shaped and/or honeycomb-shaped.
16. The blast furnace gas dehydration desulfurization tower of claim 1, characterized in that the dehydration means is a swirl plate.
17. The blast furnace gas dehydration and desulfurization tower of claim 1, wherein a skirt is provided at the bottom of the tower body, and skirt inspection holes are provided on the skirt.
18. The blast furnace gas dehydration and desulfurization tower of claim 1, wherein the tower body is made of carbon steel, a high temperature resistant and corrosion resistant layer is coated on the inner wall of the tower body, and an insulating layer is arranged on the outer wall of the tower body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122694038.1U CN215975685U (en) | 2021-11-05 | 2021-11-05 | Blast furnace gas dehydration desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122694038.1U CN215975685U (en) | 2021-11-05 | 2021-11-05 | Blast furnace gas dehydration desulfurizing tower |
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| CN215975685U true CN215975685U (en) | 2022-03-08 |
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