CN212369932U - Improved high-efficiency flue gas desulfurization tower - Google Patents
Improved high-efficiency flue gas desulfurization tower Download PDFInfo
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- CN212369932U CN212369932U CN202020837191.8U CN202020837191U CN212369932U CN 212369932 U CN212369932 U CN 212369932U CN 202020837191 U CN202020837191 U CN 202020837191U CN 212369932 U CN212369932 U CN 212369932U
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- Prior art keywords
- desulfurization
- tank
- dust
- flue gas
- grade
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- 230000003009 desulfurizing Effects 0.000 title claims abstract description 105
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 93
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003546 flue gas Substances 0.000 title claims abstract description 39
- 239000000428 dust Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims description 26
- 238000000889 atomisation Methods 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 abstract description 61
- 241000208125 Nicotiana Species 0.000 abstract 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Images
Abstract
The utility model relates to an improved generation high efficiency flue gas desulfurization tower, including elementary desulfurization dust removal jar, the second grade sprays the digester, start from its smoke inlet top in the jar internal of elementary desulfurization dust removal jar, from up being equipped with the dust screen down in proper order, the active carbon adsorption board, the desulfurization catalyst board, the jar body bottom intercommunication dust collection box of elementary desulfurization dust removal jar, the outlet flue of elementary desulfurization dust removal jar passes through the draught fan and defeated tobacco pipe and the inlet flue intercommunication that the digester was sprayed to the second grade, spray the jar internal of digester from its smoke inlet top at the second grade, from up having set gradually the whirl fan down, the one-level atomizing sprays the group, the second grade is listed as formula atomizing and is sprayed the group, tertiary atomizing sprays the group, vapour and liquid separator, the jar body bottom that the second grade sprayed the digester is thick liquid recovery circulation pond, the jar body top that the second grade sprayed the digester is equipped with the outlet flue. Compared with the existing desulfurizing tower, the improved high-efficiency flue gas desulfurizing tower has the advantages that the desulfurizing and dust-removing efficiency is higher, the desulfurization is more thorough, and the flue gas emission is ensured to meet the requirement of environmental protection data.
Description
Technical Field
The utility model belongs to the technical field of the industry flue gas processing technique and specifically relates to an improved generation high efficiency flue gas desulfurization tower is related to.
Background
China is a large coal using country, and the coal-fired flue gas contains a large amount of sulfide and dust, which can cause acid rain with strong corrosivity and atmospheric pollution, so the coal-fired flue gas must be subjected to desulfurization and dust removal treatment before being discharged. The desulfurizing tower is a device which is generally adopted for desulfurizing industrial coal-fired flue gas at present. The existing desulfurizing tower generally adopts a spraying mode to carry out flue gas desulfurization, namely adopts a mode of contacting desulfurization liquid with flue gas to carry out desulfurization, but simply depends on the spraying mode to carry out desulfurization and dust removal, and the structural design of the existing spraying mode is not ideal enough, so that the desulfurization and dust removal efficiency of the existing flue gas desulfurizing tower is not satisfactory, and the environmental protection data requirement of flue gas emission can not be ensured practically.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: provides an improved high-efficiency flue gas desulfurization tower, solves the problems in the background art and adapts to the use requirements.
The utility model provides a technical scheme that its technical problem adopted is: an improved high-efficiency flue gas desulfurization tower comprises a primary desulfurization dust-removing tank and a secondary spray desulfurization tank, wherein a smoke inlet is arranged at the lower part of the tank body of the primary desulfurization dust-removing tank, a dust filter screen, an active carbon adsorption plate and a desulfurization catalyst plate are sequentially arranged in the tank body of the primary desulfurization dust-removing tank from the upper part of the smoke inlet, the bottom of the tank body of the primary desulfurization dust-removing tank is communicated with a dust collection box, the top of the tank body of the primary desulfurization dust-removing tank is provided with a smoke outlet, the smoke outlet of the primary desulfurization dust-removing tank is communicated with the smoke inlet of the secondary spray desulfurization tank through an induced draft fan and a smoke output pipe, the smoke inlet of the secondary spray desulfurization tank is arranged at the lower part of the tank body, a cyclone fan, a primary atomization spray group, a secondary annular atomization spray group, a tertiary atomization spray group and a gas-liquid separator are sequentially arranged in the tank body of the secondary spray desulfurization tank from the, the bottom of the tank body of the second-stage spraying desulfurization tank is a slurry recycling tank, and the top of the tank body of the second-stage spraying desulfurization tank is provided with a smoke outlet.
The flue gas treatment process and the mode of the desulfurizing tower are as follows: the flue gas firstly enters a primary desulfurization dust-removing tank through a smoke inlet of the primary desulfurization dust-removing tank, the flue gas is subjected to primary filtration action of a dust filter screen, particulate matters mixed in the flue gas are intercepted and fall into a dust collection box, the flue gas sequentially passes through an activated carbon adsorption plate and a desulfurization catalyst plate to carry out primary desulfurization, then the flue gas quickly enters a secondary spray desulfurization tank through a smoke conveying pipe under the action of an induced draft fan, the flue gas entering the secondary spray desulfurization tank is uniformly dispersed by a cyclone fan and is subjected to spray desulfurization treatment of a primary atomizing spray group, a secondary annular atomizing spray group and a tertiary atomizing spray group in the secondary spray desulfurization tank, wherein the primary atomizing spray group and the tertiary atomizing spray group are spray structures in a conventional mode, the spray structures of the secondary annular atomizing spray group are different from the conventional spray structures, as shown in figure 2, spray pipes of the secondary annular atomizing spray group are annularly and fixedly arranged on the inner wall of a tank body of the secondary spray desulfurization tank, the spray headers on the spray pipes are symmetrically arranged on the spray pipes, and the spray direction of each spray header horizontally faces to the central axis of the secondary spray desulfurization tank. The flue gas after spray desulfurization is treated by a gas-liquid separator and then discharged out of a secondary spray desulfurization tank. Through such design, the desulfurizing tower is higher to the treatment effeciency that flue gas desulfurization removed dust, and flue gas desulfurization is more thorough.
The utility model has the advantages that: this improved generation high efficiency flue gas desulfurization tower compares with current desulfurizing tower, and is higher to coal-fired flue gas desulfurization dust removal treatment effeciency, and flue gas desulfurization is more thorough, has guaranteed practically that the fume emission accords with the environmental protection data requirement.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a top view structure of the second-stage circular-row atomizing spray group of the present invention.
In the figure: 1. the device comprises a primary desulfurization dust removal tank 1-1, a dust filter screen 1-2, an active carbon adsorption plate 1-3, a desulfurization catalyst plate 1-4, a dust collection box 2, a secondary spray desulfurization tank 2-1, a cyclone fan 2-2, a primary atomization spray group 2-3, a secondary annular atomization spray group 2-4, a third atomization spray group 2-5, a gas-liquid separator 2-6, a slurry recovery circulation tank 3, an induced draft fan 4 and a smoke delivery pipe.
Detailed Description
An improved high-efficiency flue gas desulfurization tower is shown in figure 1 and comprises a primary desulfurization and dust removal tank 1 and a secondary spray desulfurization tank 2, wherein a smoke inlet is formed in the lower portion of a tank body of the primary desulfurization and dust removal tank 1, a dust filter net 1-1, an active carbon adsorption plate 1-2 and a desulfurization catalyst plate 1-3 are sequentially arranged in the tank body of the primary desulfurization and dust removal tank 1 from the upper portion of the smoke inlet, a dust collection box 1-4 is communicated with the bottom of the tank body of the primary desulfurization and dust removal tank 1, a smoke outlet is formed in the top of the tank body of the primary desulfurization and dust removal tank 1, the smoke outlet of the primary desulfurization and dust removal tank 1 is communicated with the smoke inlet of the secondary spray desulfurization tank 2 through an induced draft fan 3 and a smoke output pipe 4, the smoke inlet of the secondary spray desulfurization tank 2 is formed in the lower portion of the tank body, and a cyclone fan 2-1 and a cyclone fan are sequentially arranged in the tank body of the secondary spray desulfurization tank 2 from the, The device comprises a primary spray group 2-2, a secondary annular spray group 2-3, a tertiary spray group 2-4 and a gas-liquid separator 2-5, wherein the bottom of the secondary spray desulfurization tank 2 is a slurry recovery circulation tank 2-6, and the top of the secondary spray desulfurization tank 2 is provided with a smoke outlet.
The flue gas treatment process and the mode of the desulfurizing tower are as follows: the flue gas firstly enters a primary desulfurization and dust removal tank 1 through a smoke inlet of the primary desulfurization and dust removal tank 1, the particulate matters mixed in the flue gas are intercepted and fall into a dust collection box 1-4 through the primary filtration action of a dust filter screen 1-1, the flue gas sequentially passes through an activated carbon adsorption plate 1-2 and a desulfurization catalyst plate 1-3 to carry out primary desulfurization, then rapidly enters a secondary spray desulfurization tank 2 through a smoke conveying pipe 4 under the action of an induced draft fan 3, the flue gas entering the secondary spray desulfurization tank 2 is uniformly dispersed by a cyclone fan 2-1 and is subjected to the spray desulfurization treatment of a primary atomization spray group 2-2, a secondary annular atomization spray group 2-3 and a tertiary atomization spray group 2-4 in the secondary spray desulfurization tank 2, wherein the primary atomization spray group 2-2 and the tertiary atomization spray group 2-4 are of a conventional spray structure, the spraying structure of the second-stage annular atomizing spraying group 2-3 is different from the conventional spraying structure, as shown in fig. 2, the spraying pipes of the second-stage annular atomizing spraying group 2-3 are annular and fixedly arranged on the inner wall of the tank body of the second-stage spraying desulfurization tank 2, the spraying heads on the spraying pipes are symmetrically arranged on the spraying pipes, and the spraying direction of each spraying head horizontally faces to the central axis of the second-stage spraying desulfurization tank 2. The flue gas after spray desulfurization is treated by a gas-liquid separator 2-5 and then discharged out of a secondary spray desulfurization tank 2. Through such project organization, the desulfurizing tower is higher to the treatment effeciency that flue gas desulfurization removed dust, and flue gas desulfurization is more thorough.
The above embodiments are only used for explaining the present invention, and not for limiting the protection of the present invention, and any insubstantial changes made on the basis of the essential schemes of the present invention should fall within the protection scope of the present invention.
Claims (1)
1. The utility model provides an improved generation high efficiency flue gas desulfurization tower which characterized in that: comprises a primary desulfurization dust-removing tank (1) and a secondary spraying desulfurization tank (2), wherein a smoke inlet is arranged at the lower part of the tank body of the primary desulfurization dust-removing tank (1), a dust filter screen (1-1), an active carbon adsorption plate (1-2) and a desulfurization catalyst plate (1-3) are sequentially arranged in the tank body of the primary desulfurization dust-removing tank (1) from the upper part of the smoke inlet, the bottom of the tank body of the primary desulfurization dust-removing tank (1) is communicated with a dust collection box (1-4), a smoke outlet is arranged at the top of the tank body of the primary desulfurization dust-removing tank (1), the smoke outlet of the primary desulfurization dust-removing tank (1) is communicated with the smoke inlet of the secondary spraying desulfurization tank (2) through an induced draft fan (3) and a smoke conveying pipe (4), the smoke inlet of the secondary spraying desulfurization tank (2) is arranged at the lower part of the tank body, and the tank body of the secondary spraying desulfurization tank (2) is arranged above, the cyclone fan (2-1), the first-stage atomization spraying group (2-2), the second-stage circular atomization spraying group (2-3), the third-stage atomization spraying group (2-4) and the gas-liquid separator (2-5) are sequentially arranged from bottom to top, the bottom of the tank body of the second-stage spraying desulfurization tank (2) is a slurry recovery circulating pool (2-6), and the top of the tank body of the second-stage spraying desulfurization tank (2) is provided with a smoke outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837191.8U CN212369932U (en) | 2020-05-19 | 2020-05-19 | Improved high-efficiency flue gas desulfurization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837191.8U CN212369932U (en) | 2020-05-19 | 2020-05-19 | Improved high-efficiency flue gas desulfurization tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212369932U true CN212369932U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837191.8U Active CN212369932U (en) | 2020-05-19 | 2020-05-19 | Improved high-efficiency flue gas desulfurization tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212369932U (en) |
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2020
- 2020-05-19 CN CN202020837191.8U patent/CN212369932U/en active Active
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