CN209900993U - Flue gas of sour reproduction technology takes off white system - Google Patents
Flue gas of sour reproduction technology takes off white system Download PDFInfo
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- CN209900993U CN209900993U CN201920352908.7U CN201920352908U CN209900993U CN 209900993 U CN209900993 U CN 209900993U CN 201920352908 U CN201920352908 U CN 201920352908U CN 209900993 U CN209900993 U CN 209900993U
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Abstract
The utility model relates to a flue gas of acid regeneration technology takes off white system, including the scrubbing tower that is equipped with flue gas inlet and exhanst gas outlet, and the circulation pipeline that one end is connected through circulating pump and scrubbing tower bottom washing water collection device, the other end of circulation pipeline is connected with the water shower in the scrubbing tower, the circulation pipeline is connected with the heat exchanger between circulating pump and water shower, the medium entry of heat exchanger is connected with the cooling water inlet tube, the medium export of heat exchanger is connected with the cooling water outlet pipe, be connected with air cooler between cooling water inlet tube and the cooling water outlet pipe, the circulation pipeline lets in the absorption tower through the bypass pipeline and produces the acid between heat exchanger and water shower; the inner wall of the washing tower is sequentially provided with a first buffer plate and a second buffer plate which are different in length in an upward inclined mode along the rising direction of the flue gas, and a flue gas flow channel is formed between the adjacent first buffer plate and the second buffer plate. The utility model has the advantages of reasonable design, reduce the operation cost and can realize sour regeneration.
Description
Technical Field
The utility model relates to the technical field, concretely relates to flue gas of sour reproduction technology takes off white system.
Background
The existing acid regeneration process in the metallurgical industry needs to be matched with a flue gas absorption washing system for controlling the indexes of emissions in flue gas, a large amount of rinsing water is used in the traditional flue gas washing mode, the investment and the operation cost are increased, and the contradiction between environmental management and economic benefit exists.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a flue gas of sour reproduction technology and take off white system, structural design is reasonable, can take off the comdenstion water that white production was taken off to the flue gas and collect and be used for the flue gas to take off white and absorb the gaseous production of HCL sour.
The utility model discloses a realize through following technical scheme:
provides a flue gas whitening system of an acid regeneration process, which comprises a washing tower provided with a flue gas inlet and a flue gas outlet, and a circulation pipeline with one end connected with the washing water collecting device at the bottom of the washing tower through a circulation pump, the other end of the circulation pipeline is connected with a water sprayer in the washing tower, a heat exchanger is connected between the circulation pump and the water sprayer in the circulation pipeline, be connected with the by-pass line between heat exchanger and water sprayer, the medium entry linkage of heat exchanger has the cooling water inlet tube, the medium exit linkage of heat exchanger has the cooling water outlet pipe, be connected with air cooler between cooling water inlet tube and the cooling water outlet pipe, the scrubbing tower inner wall is equipped with the number to the buffer board along flue gas rising direction slope in proper order, every includes first buffer board and second buffer board to every buffer board, there is certain space every to between every pair of buffer board, the space formation flue gas runner between the number pair of buffer board.
The flue gas is discharged from the top of the washing tower after being sprayed and cooled by the water sprayer, the spray water is contacted with the flue gas, then is heated and falls into the washing water collecting device at the bottom of the washing tower together with condensed water generated by condensing the flue gas, the heated washing water is sent into the heat exchanger to be subjected to heat exchange and cooling with the condensed water under the action of the circulating pump, and then is sprayed in the water sprayer again, as the flue gas is condensed, the condensed water is discharged, so that the content of the washing water is gradually increased, and the part of the washing water can be used for absorbing HCL gas to generate acid in the absorption tower through the bypass pipeline, and can also be used for absorbing fine particle dust, sulfide, nitride and the like. The heat exchange and condensation efficiency of the flue gas is improved.
Furthermore, the length of the first buffer plate of each pair of buffer plates is greater than that of the second buffer plate, and the distance from the end part of the first buffer plate to the inner wall of the opposite side washing tower is less than or equal to the distance from the end part of the second buffer plate to the inner wall of the side washing tower.
The flue gas runner between the first buffer plate and the second buffer plate end of the inner wall of the washing tower can not be directly communicated in the vertical direction and is communicated along the inclined runner between the first buffer plate and the second buffer plate, so that the length of the flue gas runner is increased, the flue gas heat exchange time is prolonged, and the heat exchange is facilitated to be sufficient.
Furthermore, a heater for heating the flue gas is also arranged above the water sprayer in the washing tower.
The smoke contains carbon dioxide, the density of the smoke is higher than that of air, the smoke is heated through the heater, the size is increased, the density is reduced, and the emission power is provided. Directly discharged into a chimney without reheating, acid mist is easily formed, the chimney is corroded, and the diffusion of smoke is not facilitated.
Furthermore, a dust and mist removing device is arranged between the heater and the water sprayer.
The smoke contains fog, dust, sulfur dioxide and the like, the smoke passes through the dust and mist removal device, liquid drops carried in the smoke are separated, valuable material loss is reduced, operation of a compressor behind a tower is improved, and water vapor in the smoke is purified in the dust and mist removal process, so that the emission is reduced, and the pollution to the environment is reduced.
Furthermore, the circulating pipeline is formed by connecting at least two branch pipelines in parallel between the circulating pump and the water sprayer, each branch pipeline is connected with a heat exchanger, a medium inlet of each heat exchanger is connected with a cooling water inlet pipe through a pipeline, and a medium outlet of each heat exchanger is connected with a cooling water outlet pipe through a pipeline.
The branch pipelines are formed on the circulating pipeline, each branch pipeline is connected with the heat exchanger, washing water is divided into a plurality of pipelines to be subjected to heat exchange and cooling with the heat exchanger, the heat exchange efficiency is improved, the cooling of the washing water is facilitated to be rapidly realized, and the spraying effect is better.
Preferably, 4 heat exchangers are additionally arranged on a circulating pipeline of each washing tower for cooling flue gas, the flue gas is cooled to recover a large amount of condensed water, and part of the condensed water generated by the de-whitening treatment enters a circulating system for reuse to rinse residual pollution components such as fine particle dust, nitride, sulfide, HCL and the like, and part of the condensed water enters an absorption tower through a bypass to absorb HCL gas.
The utility model has the advantages that:
one, the utility model discloses a large amount of comdenstion water in the recoverable flue gas, the comdenstion water of whitening processing production, partly get into washing water circulating system and recycle, and another part gets into the absorption tower by bypass pipeline for absorb the gaseous production regeneration acid of HCL, reduce the use of external water, practiced thrift the energy consumption.
Secondly, the flue gas is rinsed by the washing tower, and residual pollution components such as fine particle dust, nitride, sulfide and HCL are separated from the flue gas, so that the emission index is optimized.
Drawings
FIG. 1 is a general view of a flue gas whitening system of the acid regeneration process of the present invention;
fig. 2 is a water recycling diagram of the flue gas de-whitening system of the acid regeneration process of the utility model.
Shown in the figure:
1. a washing tower 2, a flue gas inlet 3 and a flue gas outlet. 4. The device comprises a water sprayer, 5, a circulating pipeline, 6, a circulating pump, 7, a branch pipeline, 8, a heat exchanger, 9, a bypass pipeline, 10, a cooling water inlet pipe, 11, a cooling water outlet pipe, 12, a dust and mist removing device, 13, a heater, 14, an air cooler, 15, a first buffer plate, 16, a second buffer plate, 17, a flue gas flowing direction arrow, 18, a washing water flowing direction arrow, 19 and an arrow for enabling washing water to enter an absorption tower.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
A flue gas whitening system of an acid regeneration process comprises a washing tower 1 provided with a flue gas inlet 2 and a flue gas outlet 3, and a circulating pipeline 5, wherein one end of the circulating pipeline 5 is connected with a washing water collecting device at the bottom of the washing tower 1 through a circulating pump 6, the other end of the circulating pipeline 5 is connected with a water sprayer 4 in the washing tower 1, the circulating pipeline 5 is connected with a heat exchanger 8 between the circulating pump 6 and the water sprayer 4, a medium inlet of the heat exchanger 8 is connected with a cooling water inlet pipe 10, a medium outlet of the heat exchanger 8 is connected with a cooling water outlet pipe 11, an air cooler 14 is connected between the cooling water inlet pipe 10 and the cooling water outlet pipe 11, and the circulating pipeline 5 is introduced into an absorption tower to produce acid through a bypass pipeline 9 between the heat exchanger 8 and the; the inner wall of the washing tower 1 is sequentially provided with a first buffer plate 15 and a second buffer plate 16 which have different lengths in an upward inclined manner along the ascending direction of the flue gas, and a flue gas channel is formed between the adjacent first buffer plate 15 and the adjacent second buffer plate 16.
Wherein, the length of the first buffer plate 15 is greater than the length of the second buffer plate 16, and the distance from the end of the first buffer plate 15 to the inner wall of the opposite side washing tower 1 at the same position is less than or equal to the distance from the end of the second buffer plate 16 to the inner wall of the side washing tower 1. Can make can not be in vertical direction direct intercommunication and along the slant runner intercommunication between first buffer board 15 and second buffer board 16, increase the length of flue gas runner to flue gas heat transfer time has been prolonged, it is abundant to help the heat transfer.
A heater 13 for heating the flue gas is also arranged above the water sprayer 4 in the washing tower 1. And a dust and mist removing device 12 is arranged between the heater 13 and the water sprayer 4.
The cooling water inlet pipe 10 and the cooling water outlet pipe 11 are used for providing low-temperature cooling water which flows circularly, the circulating flow can be realized by installing a circulating pump, and certainly, in order to ensure the supply of the cooling water, a cooling water supply tank can be connected to a pipeline through a valve and used for supplying the cooling water in the pipeline. It is connected with air cooler 14, cools down after the cooling water gets into air cooler 14, and air cooler 14's one end gets into air, the other end exhaust air, and during the heat shifted to the air, air cooler 14 abundant utilized the difference in temperature of cooling water with the environment, carries out effectual cooling condensation to the cooling water, need not other cooperation cooling equipment. It should be noted that, as can be understood from the working principle of the air cooler 14, the lower the outdoor temperature is, the higher the heat exchange efficiency of the air cooler 14 is, and the higher the efficiency of the flue gas whitening is, so that the whitening efficiency of the flue gas whitening system is higher in low-temperature weather and cold regions.
The circulating pipeline 5 is formed by connecting at least two branch pipelines 7 in parallel between the circulating pump 6 and the water sprayer 4, each branch pipeline 7 is connected with a heat exchanger 8, a medium inlet of each heat exchanger 8 is connected with a cooling water inlet pipe 10 through a pipeline, and a medium outlet of each heat exchanger is connected with a cooling water outlet pipe 11 through a pipeline. As shown in fig. 1, the utility model designs four branch pipelines 7, and each branch pipeline 7 is provided with a heat exchanger 8.
High-temperature flue gas enters through a flue gas inlet 2 at the bottom of the washing tower 1 as shown by an arrow 17 in figure 2, cooling water is sprayed from the top of the water sprayer 4 to be mixed with the flue gas to form violent gas-water mixing, washing, cooling and condensing the flue gas as shown by an arrow 18 in figure 2, wherein, large-particle condensate (containing soluble salt, sulfuric acid mist, organic matters and other condensable particles) mixed by the flue gas and the spray water is collected in a washing water collecting device at the bottom of the washing tower 1, the flue gas is subjected to heat exchange and temperature reduction by a water sprayer 4 and then rises to a dust and mist removing device 12, the residual small amount of fine liquid drops are collected and flow to the water sprayer 4 through the pipeline after being collected, the flue gas is heated and heated by the heater 13 after continuously rising and is discharged from the flue gas outlet 3 at the top of the washing tower 1, and the water level in the washing water collecting device is gradually increased after accumulating for a certain time. The washing water collecting device is one of a water storage tank or a water storage pool.
The washing water is used for transferring the heated washing water into the heat exchanger 8 to exchange heat with the condensed water for cooling under the action of the circulating pump 6, and then enters the water sprayer 4 again for spraying, and the condensed water can be discharged due to flue gas condensation, so that the content of the washing water is gradually increased, and part of the washing water can be used for absorbing HCL gas to generate acid through the absorption tower through the bypass pipeline 9, as shown by an arrow 19 in figure 2, and can also be used for absorbing fine particle dust, sulfide, nitride and the like.
The utility model discloses the system has retrieved a large amount of comdenstion water in the flue gas, takes off the comdenstion water that the white processing produced, and partly entering circulation system recycles, and partly get into absorption tower 1 by bypass pipeline 9 for absorb the gaseous regeneration acid that produces of HCL, reduce the use of external water, practiced thrift the energy consumption.
The embodiments of the present invention are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention.
Claims (5)
1. A flue gas of sour reproduction technology takes off white system which characterized in that: comprises that
A washing tower, a flue gas inlet and a flue gas outlet are arranged on the washing tower,
one end of the circulating pipeline is connected with a washing water collecting device at the bottom of the washing tower through a circulating pump, the other end of the circulating pipeline is connected with a water sprayer in the washing tower,
a heat exchanger arranged between the circulating pump and the water sprayer of the circulating pipeline, a medium inlet of the heat exchanger is connected with a cooling water inlet pipe, a medium outlet of the heat exchanger is connected with a cooling water outlet pipe, an air cooler is connected between the cooling water inlet pipe and the cooling water outlet pipe,
the flue gas runner, the scrubbing tower inner wall is equipped with several pairs of buffer boards along flue gas rising direction slope in proper order, and every pair of buffer board includes first buffer board and second buffer board, and every has certain space between every pair of buffer board, and the clearance of several pairs between the buffer board forms the flue gas runner, bypass pipe one end is passed through three way connection and is connected between heat exchanger and water sprayer.
2. The flue gas de-whitening system of the acid regeneration process of claim 1, characterized in that: the length of the first buffer plate of each pair of buffer plates is greater than that of the second buffer plate, and the distance from the end part of the first buffer plate to the inner wall of the opposite side washing tower is less than or equal to the distance from the end part of the second buffer plate to the inner wall of the side washing tower.
3. The flue gas de-whitening system of the acid regeneration process of claim 1, characterized in that: and a heater for heating the flue gas is also arranged above the water sprayer in the washing tower.
4. The flue gas de-whitening system of the acid regeneration process of claim 3, characterized in that: and a dust and mist removing device is arranged between the heater and the water sprayer.
5. The flue gas de-whitening system of the acid regeneration process of claim 1, characterized in that: the circulating pipeline is formed by connecting at least two branch pipelines in parallel between the circulating pump and the water sprayer, each branch pipeline is connected with a heat exchanger, a medium inlet of each heat exchanger is connected with a cooling water inlet pipe through a pipeline, and a medium outlet of each heat exchanger is connected with a cooling water outlet pipe through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920352908.7U CN209900993U (en) | 2019-03-19 | 2019-03-19 | Flue gas of sour reproduction technology takes off white system |
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| CN201920352908.7U CN209900993U (en) | 2019-03-19 | 2019-03-19 | Flue gas of sour reproduction technology takes off white system |
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| CN209900993U true CN209900993U (en) | 2020-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642281A (en) * | 2020-12-28 | 2021-04-13 | 宜宾海翔化工有限责任公司 | Cooling washing dust removal system and method for hydrogen sulfide acid production |
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2019
- 2019-03-19 CN CN201920352908.7U patent/CN209900993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642281A (en) * | 2020-12-28 | 2021-04-13 | 宜宾海翔化工有限责任公司 | Cooling washing dust removal system and method for hydrogen sulfide acid production |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 276800 north of Lingang road and west of Park 1st Road, Donggang District, Rizhao City, Shandong Province Patentee after: Shandong lishante Intelligent Technology Co.,Ltd. Address before: 276800 taoluo Town, Donggang District, Rizhao City, Shandong Province Patentee before: Shandong Lishan Intelligent Technology Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230117 Address after: 276800 north of Lingang road and west of Park 1st Road, Donggang District, Rizhao City, Shandong Province Patentee after: Corclair Acid Recycling Technology (Shandong) Co.,Ltd. Address before: 276800 north of Lingang road and west of Park 1st Road, Donggang District, Rizhao City, Shandong Province Patentee before: Shandong lishante Intelligent Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |