CN211936172U - Collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization - Google Patents
Collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization Download PDFInfo
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- CN211936172U CN211936172U CN201922478704.0U CN201922478704U CN211936172U CN 211936172 U CN211936172 U CN 211936172U CN 201922478704 U CN201922478704 U CN 201922478704U CN 211936172 U CN211936172 U CN 211936172U
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Abstract
The utility model discloses a collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization, including washing condensing tower, cooling water circulation subassembly, the tower body downside of washing condensing tower is used for introducing the sintering flue gas after the wet flue gas desulfurization, the cooling water circulation subassembly sets up outside the washing condensing tower and rather than being connected and be used for providing and retrieve the cooling water, and the sintering flue gas is gone into wet-type electrostatic precipitator from the top after handling through the washing condensing tower. The utility model discloses can effectively reduce present sintering flue gas wet flue gas desulfurization back flue gas humidity to reach and realize that the flue gas disappears whitely, can carry out the washing preliminary treatment to wet electricity entry dust simultaneously, reduce its entry dust concentration, finally ensure the ultralow emission of dust behind the wet electricity.
Description
Technical Field
The utility model belongs to the technical field of the sintering flue gas is handled, concretely relates to collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization.
Background
In the prior art, a fluoroplastic tube heat exchanger is adopted in a cooling condensation dehumidification technology after wet desulphurization of sintering flue gas, and a wet electric dust remover is adopted in a dust removal technology after wet desulphurization of sintering flue gas.
The fluoroplastic pipe type heat exchanger has the advantages of small heat exchange temperature drop amplitude and humidity reduction amplitude (the most economical temperature drop is 5 ℃, and the moisture content is reduced by 3%), and if the reduction amplitude of the flue gas humidity needs to be increased on one surface, the heat exchange area needs to be greatly increased, so that the primary investment cost is greatly increased, and the fluoroplastic pipe has low pressure resistance and high temperature resistance, is easy to perforate and leak water, and influences the normal operation of a system.
Wet-type electrostatic precipitator dust collection efficiency is low, and conventional efficiency: 80 percent, if the requirement of ultralow emission of the dust at the outlet is to be met (namely the dust concentration is less than or equal to 10 mg/Nm)3) Ensuring that the inlet dust concentration is less than or equal to 50mg/Nm3(namely the concentration of dust at the outlet of the absorption tower is less than or equal to 50mg/Nm3) The existing sintering machine head electric dust remover has higher dust discharge concentration (commonly 120-150 mg/Nm)3) The dust concentration is difficult to ensure to be less than or equal to 50mg/Nm after the wet desulphurization of the flue gas3Thereby the concentration of the dust at the wet electricity outlet is difficult to be ensured to be less than or equal to 10mg/Nm3(ii) a If the final ultralow emission of the dust at the wet electricity outlet is realized, the sintering machine head electric dust remover needs to be upgradedThe specific dust collecting area is increased, the existing sintering electric dust removal area is generally difficult to meet the transformation requirement, and the upgrading and transformation investment cost is higher.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide an integrated device for condensing, dehumidifying and dedusting after wet desulphurization of sintering flue gas.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the embodiment of the utility model provides a collection condensation dehumidification and dust removal integrated device behind sintering flue gas wet flue gas desulfurization, including washing condensing tower, cooling water circulation subassembly, the tower body downside of washing condensing tower is used for introducing the sintering flue gas behind the wet flue gas desulfurization, the cooling water circulation subassembly sets up outside the washing condensing tower and rather than being connected and be used for providing and retrieve the cooling water, and the sintering flue gas is gone into wet-type electrostatic precipitator from the top after handling through the washing condensing tower.
In the scheme, the water washing condensing tower comprises a tower body, a spraying and gas-liquid separating mechanism and a demister, wherein a gas inlet is formed in the lower side surface of the tower body, and a gas outlet is formed in the top of the tower body; the spraying and gas-liquid separating mechanism is arranged in the tower body from bottom to top; the demister is arranged in the tower body and is positioned above the spraying and gas-liquid separating mechanism.
In the above scheme, the spraying and gas-liquid separating mechanism comprises at least one gas-liquid separator and an atomization spraying layer, and the gas-liquid separator and the atomization spraying layer are arranged in a staggered manner from bottom to top; the gas-liquid separator is connected with the water return end of the cooling water circulation assembly, and the atomization spraying layer is connected with the water outlet end of the cooling water circulation assembly 2.
In the scheme, the atomization spraying layers are uniformly distributed along the radial direction of the tower body to form the high-efficiency water washing spraying device; the high-efficiency water washing and spraying device comprises a spraying pipeline and a plurality of nozzles; the spray pipe is arranged along the radial direction of the tower body, and a plurality of nozzles are uniformly distributed on the spray pipe.
In the above scheme, the cooling water circulation assembly comprises a cooling circulation water tower and cooling circulation water pumps, the number of the cooling circulation water pumps is the same as that of the atomization spraying layers in the spraying and gas-liquid separation mechanism, and the water inlet ends of the cooling circulation water pumps are connected with the water outlet end of the cooling circulation water tower; the water outlet end of the cooling circulating water pump is connected with the corresponding atomization spraying layer through a cooling water outlet pipeline; and the water return end of the gas-liquid separator is connected with the water inlet end of the cooling circulating water tower through a water return pipeline.
In the above scheme, the cooling water circulating device further comprises a cooling water filtering component, and the cooling water filtering component is connected with the cooling water circulating component and used for filtering circulating water.
In the above scheme, cooling water filter component includes shallow sand filter, shallow sand filter is connected with the cooling circulation water tower, shallow sand filter's blowdown end is connected with the waste water drainage ditch.
In the above scheme, the cooling circulation water tower is connected with the shallow sand filter through the drainage pump and is used for filtering and dedusting circulating water and discharging waste water.
Compared with the prior art, the utility model discloses can effectively reduce present sintering flue gas wet flue gas desulfurization back flue gas humidity to reach and realize that the flue gas disappears whitely, can carry out the washing preliminary treatment to wet electricity entry dust simultaneously, reduce its entry dust concentration, finally ensure the ultralow emission of dust behind the wet electricity.
Drawings
Fig. 1 is a schematic structural view of an integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, 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.
The embodiment of the utility model provides a collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization, as shown in fig. 1, including washing condensing tower 1, cooling water circulation subassembly 2, 11 downside of tower body of washing condensing tower 1 are used for introducing the sintering flue gas after the wet flue gas desulfurization, cooling water circulation subassembly 2 sets up in washing condensing tower 1 outside and rather than being connected and be used for providing and retrieve the cooling water, and the sintering flue gas is gone into wet-type electrostatic precipitator from the top after handling through washing condensing tower 1.
The washing condensing tower 1 comprises a tower body 11, a spraying and gas-liquid separating mechanism 12 and a demister 13, wherein the lower side surface of the tower body 11 is provided with a gas inlet 111, and the top of the tower body is provided with a gas outlet 112; the spraying and gas-liquid separating mechanism 12 is arranged in the tower body 11 from bottom to top; the demister 13 is disposed in the tower body 11 and above the spray and gas-liquid separation mechanism 12.
The spraying and gas-liquid separating mechanism 12 comprises at least one gas-liquid separator 121 and an atomization spraying layer 122, wherein the gas-liquid separator 121 and the atomization spraying layer 122 are arranged in a staggered manner from bottom to top; the gas-liquid separator 121 is connected with a water return end of the cooling water circulation assembly 2, and the atomization spraying layer 122 is connected with a water outlet end of the cooling water circulation assembly 2.
The atomization spraying layer 122 is uniformly distributed along the radial direction of the tower body to form a high-efficiency water washing spraying device; the high-efficiency water washing spray device comprises a spray pipeline 1221 and a plurality of nozzles 1222; the spray pipe 1221 is arranged along the radial direction of the tower body 11, and a plurality of nozzles 1222 are uniformly distributed on the spray pipe 1221.
The cooling water circulation component 2 comprises a cooling circulation water tower 21 and cooling circulation water pumps 22, the number of the cooling circulation water pumps 22 is the same as that of the atomization spraying layers 122 in the spraying and gas-liquid separation mechanism 12, and the water inlet ends of the cooling circulation water towers are connected with the water outlet end of the cooling circulation water tower 21; the water outlet end of the cooling circulating water pump 22 is connected with the corresponding atomization spraying layer 122 through a cooling water outlet pipeline 23; the water return end of the gas-liquid separator 121 is connected with the water inlet end of the cooling circulation water tower 21 through a water return pipeline 24.
Further, the cooling water circulating device further comprises a cooling water filtering assembly 3, and the cooling water filtering assembly 3 is connected with the cooling water circulating assembly 2 and used for filtering circulating water.
The cooling water filtering component 3 comprises a shallow sand filter, the shallow sand filter is connected with the cooling circulation water tower 21, and the sewage discharge end of the shallow sand filter is connected with a wastewater drainage ditch.
The cooling circulation water tower 21 is connected with the shallow sand filter through a drain pump 25 and is used for filtering and dedusting the circulating water and discharging waste water.
The utility model discloses a working process:
the flue gas of the sintering machine head enters a washing condensing tower 1 after electric precipitation and wet desulphurization, passes through a gas-liquid separator 121 from the inlet flue of a tower body 11 from bottom to top, enters an atomization spraying layer 122, a cooling circulating water pump 21 extracts circulating cooling water at the bottom of a cooling water tower and sends the circulating cooling water to the atomization spraying layer 122, the cooling water is sprayed out through spraying layer atomizing nozzles and has mass transfer and chemical absorption reaction with the flue gas from the upstream to the downstream, the flue gas transfers heat to the cooling water, the temperature is reduced, the humidity is reduced (can be reduced from 15% to below 10%), meanwhile, dust in the flue gas is captured by washing, the dust concentration is reduced (can be reduced from 100mg/Nm3 to below 50mg/Nm 3), the flue gas after temperature reduction and condensation is dedusted by a wet electric precipitator after fog drops are removed by a demister 13, and finally;
the cooling water after heat exchange and dust washing is collected by the gas-liquid separator 121 and sent to the cooling water tower 21, and is filtered, dedusted and cooled by the shallow sand filter for recycling.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The utility model provides a collection condensation dehumidification and dust removal integrated device behind sintering flue gas wet flue gas desulfurization, a serial communication port, including washing condensing tower, cooling water circulation subassembly, the tower body downside of washing condensing tower is used for introducing the sintering flue gas behind the wet flue gas desulfurization, the cooling water circulation subassembly sets up outside the washing condensing tower and rather than being connected and be used for providing and retrieve the cooling water, and the sintering flue gas is gone into wet-type electrostatic precipitator from the top after handling through the washing condensing tower.
2. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 1, wherein the water washing condensing tower comprises a tower body, a spraying and gas-liquid separation mechanism and a demister, the lower side surface of the tower body is provided with a gas inlet, and the top of the tower body is provided with a gas outlet; the spraying and gas-liquid separating mechanism is arranged in the tower body from bottom to top; the demister is arranged in the tower body and is positioned above the spraying and gas-liquid separating mechanism.
3. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 2, wherein the spraying and gas-liquid separating mechanism comprises at least one gas-liquid separator and an atomization spraying layer, and the gas-liquid separator and the atomization spraying layer are arranged in a staggered manner from bottom to top; the gas-liquid separator is connected with the water return end of the cooling water circulation assembly, and the atomization spraying layer is connected with the water outlet end of the cooling water circulation assembly 2.
4. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 3, wherein the atomization spray layers are uniformly distributed along the radial direction of the tower body to form a high-efficiency water-washing spray device; the high-efficiency water washing and spraying device comprises a spraying pipeline and a plurality of nozzles; the spray pipe is arranged along the radial direction of the tower body, and a plurality of nozzles are uniformly distributed on the spray pipe.
5. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 4, wherein the cooling water circulation component comprises a cooling circulation water tower and cooling circulation water pumps, the number of the cooling circulation water pumps is the same as the number of the atomization spraying layers in the spraying and gas-liquid separation mechanism, and the water inlet ends are connected with the water outlet end of the cooling circulation water tower; the water outlet end of the cooling circulating water pump is connected with the corresponding atomization spraying layer through a cooling water outlet pipeline; and the water return end of the gas-liquid separator is connected with the water inlet end of the cooling circulating water tower through a water return pipeline.
6. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in any one of claims 1 to 5, further comprising a cooling water filtering component, wherein the cooling water filtering component is connected with the cooling water circulating component for filtering circulating water.
7. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 6, wherein the cooling water filtering component comprises a shallow sand filter, the shallow sand filter is connected with the cooling circulation water tower, and a sewage discharge end of the shallow sand filter is connected with a wastewater drainage ditch.
8. The integrated device for condensation, dehumidification and dust removal after wet desulphurization of sintering flue gas as claimed in claim 7, wherein the cooling circulation water tower is connected with the shallow sand filter through a drainage pump for filtering and dust removal of circulation water and discharging waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478704.0U CN211936172U (en) | 2019-12-31 | 2019-12-31 | Collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478704.0U CN211936172U (en) | 2019-12-31 | 2019-12-31 | Collection condensation dehumidification and dust removal integrated device after sintering flue gas wet flue gas desulfurization |
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| CN211936172U true CN211936172U (en) | 2020-11-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870993A (en) * | 2022-03-17 | 2022-08-09 | 西安西矿环保科技有限公司 | Purification device and purification method for converter gas subjected to primary electric precipitation |
| CN115200383A (en) * | 2022-09-19 | 2022-10-18 | 秦皇岛新特科技有限公司 | Condenser for cooling sintering flue gas |
-
2019
- 2019-12-31 CN CN201922478704.0U patent/CN211936172U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870993A (en) * | 2022-03-17 | 2022-08-09 | 西安西矿环保科技有限公司 | Purification device and purification method for converter gas subjected to primary electric precipitation |
| CN115200383A (en) * | 2022-09-19 | 2022-10-18 | 秦皇岛新特科技有限公司 | Condenser for cooling sintering flue gas |
| CN115200383B (en) * | 2022-09-19 | 2022-11-15 | 秦皇岛新特科技有限公司 | Condenser for cooling sintering flue gas |
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Address after: 710075 7th floor, block B, Huajing Plaza, 20 Fenghui South Road, Yanta District, Xi'an City, Shaanxi Province Patentee after: Xi'an Longjing Environmental Protection Technology Co.,Ltd. Address before: 710075 7th floor, block B, Huajing Plaza, 20 Fenghui South Road, Yanta District, Xi'an City, Shaanxi Province Patentee before: XI'AN XIKUANG ENVIRONMENTAL PROTECTION Co.,Ltd. |