CN210078887U - Novel concentrated sulfuric acid adsorption cooling crystallization device - Google Patents
Novel concentrated sulfuric acid adsorption cooling crystallization device Download PDFInfo
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- CN210078887U CN210078887U CN201920779875.4U CN201920779875U CN210078887U CN 210078887 U CN210078887 U CN 210078887U CN 201920779875 U CN201920779875 U CN 201920779875U CN 210078887 U CN210078887 U CN 210078887U
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Abstract
The utility model belongs to the technical field of the environmental protection equipment, concretely relates to novel concentrated sulfuric acid adsorbs cooling crystallization device. The device include multistage vacuum crystallization device, multistage vacuum crystallization device be connected with sulphuric acid condenser, sulphuric acid condenser and 1# steam jet pump inlet connection, 1# steam jet pump export is connected with the shell and tube condenser, the shell and tube condenser is connected with the comdenstion water liquid seal bucket, the shell and tube condenser passes through the vacuum pump and is connected with exhaust treatment device. The utility model discloses a change mixed condensation into indirect condensation to keep apart poisonous and odorous waste gas and condensing medium completely, realize whole recoveries, avoided directly discharging and caused the pollution in the air.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment, concretely relates to novel concentrated sulfuric acid adsorbs cooling crystallization device.
Background
In the production of viscose fiber, acid bath and viscose are subjected to neutralization reaction to form a large amount of dilute acid bath mainly comprising dilute sulfuric acid and sodium sulfate, the content of sodium sulfate in the acid bath is too high to influence the secondary utilization of the acid bath, and a vacuum crystallization device is used for cooling and concentrating the solution in the industry at present to separate the sodium sulfate in a mirabilite form through crystallization, so that the concentration of sodium sulfate in sulfuric acid can meet the technological requirements finally.
In the prior art, patent ZL201120028238.7 discloses a vacuum crystallization device which requires a steam jet pump to maintain vacuumWhen the steam jet pump works, the low-temperature solution is evaporated, cooled and crystallized under negative pressure, and the secondary steam generated by evaporation brings acidic water vapor and H in the acid bath out2S and CS2And the toxic odor gas enters a mixing condenser, and is mixed, condensed and absorbed with low-temperature cooling water in the mixing condenser. The used cooling water enters a water cooling tower for cooling, and H in the water is cooled in the process of spraying the water cooling tower2S and CS2And the poisonous and odorous gases are volatilized and discharged into the air, so that air pollution is caused and the environment is harmed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel concentrated sulfuric acid adsorption cooling crystallization device changes indirect condensation into through mixing the condensation to keep apart poisonous and odorous waste gas and condensing medium completely, realize whole recoveries, avoided directly discharging and caused the pollution in the air.
The utility model discloses an adopt following technical scheme to realize:
the utility model provides a novel concentrated sulfuric acid adsorbs cooling crystallization device, includes multistage vacuum crystallization device, multistage vacuum crystallization device be connected with sulphuric acid condenser, sulphuric acid condenser and 1# steam jet pump entry linkage, 1# steam jet pump export is connected with the shell and tube condenser, the shell and tube condenser is connected with comdenstion water liquid seal bucket, the shell and tube condenser passes through the vacuum pump and is connected with exhaust treatment device.
Furthermore, the sulfuric acid condenser is provided with a plurality of stages of sulfuric acid condensers, the adjacent two stages of sulfuric acid condensers are connected through a pipeline, each stage of sulfuric acid condenser is connected with a 1# steam jet pump, and each 1# steam jet pump is connected with the tube still condenser.
Further, the tubulation condenser for be equipped with multistage tubulation condenser, pass through the tube coupling between the adjacent two-stage tubulation condenser, be equipped with the 2# steam jet pump on the pipeline, each grade tubulation condenser all is connected with the comdenstion water liquid seal bucket.
Furthermore, a cooling water inlet of the tube array condenser is connected with a circulating cooling water device, and a water outlet of the tube array condenser is connected with a cooling water cooling tower.
Further, the shell-and-tube condenser is a shell-and-tube heat exchanger, a shell side medium is waste gas, and a tube side medium is circulating cooling water.
The working principle and the process are as follows:
under the action of the No. 1 steam jet pump, the No. 2 steam jet pump and the vacuum pump, the whole crystallization device runs in a negative pressure environment, and acidic water vapor and H in the multistage vacuum crystallization device2S and CS2Poisonous and odorous waste gas, get into the sulphuric acid condenser through the pipeline, after the absorption condensation through concentrated sulfuric acid, noncondensable gas is pumped to the shell and tube condenser through 1# steam jet pump, waste gas and recirculated cooling water carry out indirect heat exchange through the heat exchange tube pipe wall, become the condensate with the acid steam condensation in the waste gas, the condensate passes through the pipeline and carries the condensate water liquid seal bucket, the condensate water in the condensate water liquid seal bucket gets into sewage treatment plant and handles, noncondensable waste gas accessible pipeline enters into the shell and tube condenser shell side secondary condensation of next-level, final waste gas enters into the vacuum pump import of being connected with the shell and tube condenser through the pipeline, discharge into the waste gas pipeline by the vacuum pump, get into exhaust treatment plant.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses totally airtight collection the noncondensable waste gas among the vacuum crystallization device, make all poisonous waste gas that the device produced all can enter into exhaust-gas treatment system, avoided air pollution.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. a multistage vacuum crystallization device; 2. a sulfuric acid condenser; 3. 1# steam jet pump; 4. a circulating cooling water device; 5. a cooling water tower; 6. a shell and tube condenser; 7. 2# steam jet pump; 8. an exhaust gas treatment device; 9. a vacuum pump; 10. and (5) a condensed water liquid seal barrel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, a novel concentrated sulfuric acid adsorption cooling crystallization device, including multistage vacuum crystallization device 1, multistage vacuum crystallization device 1 be connected with sulphuric acid condenser 2, sulphuric acid condenser 2 and 3 entry linkage of 1# steam jet pump, 3 exports of 1# steam jet pump are connected with shell and tube condenser 6, shell and tube condenser 6 is connected with comdenstion water liquid seal bucket 10, shell and tube condenser 6 passes through vacuum pump 9 and is connected with exhaust treatment device 8.
The sulfuric acid condenser 2 is a sulfuric acid condenser 2 provided with two stages, the adjacent two stages of sulfuric acid condensers 2 are connected through a pipeline, the two stages of sulfuric acid condensers 2 are connected with a 1# steam jet pump 3, and each 1# steam jet pump 3 is connected with a tube nest condenser 6.
The tubular condenser 6 for be equipped with the tubular condenser 6 of two-stage, pass through the tube coupling between the adjacent two-stage tubular condenser 6, be equipped with 2# steam jet pump 7 on the pipeline, each grade tubular condenser 6 all is connected with condensate water liquid seal bucket 10.
And cooling water inlets of the two-stage tubular condenser 6 are connected with a circulating cooling water device 4, and water outlets of the two-stage tubular condenser 6 are connected with a cooling water cooling tower 5.
The working principle and the process are as follows:
under the action of the No. 1 steam jet pump 3, the No. 2 steam jet pump 7 and the vacuum pump 9, the whole crystallization device runs in a negative pressure environment, and acidic water vapor and H in the multistage vacuum crystallization device 12S and CS2Poisonous and odorous waste gas enters a two-stage sulfuric acid condenser through a pipeline after 2 kinds of concentrated sulfuric acid are absorbed and condensed, non-condensable gas is pumped to a first-stage tubular condenser 6 through a No. 1 steam jet pump 3, the tubular condenser 6 is a tubular heat exchanger, a shell side medium is waste gas, a tube side medium is circulating cooling water, the waste gas and the circulating cooling water are subjected to indirect heat exchange through the wall of a heat exchange tube, acid steam in the waste gas is condensed into condensate, the condensate is conveyed to a condensate liquid sealing barrel 10 through the pipeline, the condensate in the condensate liquid sealing barrel 10 enters a sewage treatment device for treatment, the non-condensable waste gas enters a second-stage tubular condenser 6 through the pipeline to be condensed again, and finally the waste gas enters an inlet of a vacuum pump 9 connected with the second-stage tubular condenser 6 through the pipeline, is discharged into a waste gas pipeline through the vacuum pump 9 andand a gas processing device 8.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (5)
1. The utility model provides a novel concentrated sulfuric acid adsorbs cooling crystallization device, includes multistage vacuum crystallization device (1), its characterized in that: multistage vacuum crystallization device (1) be connected with sulphuric acid condenser (2), sulphuric acid condenser (2) and 1# steam jet pump (3) inlet connection, 1# steam jet pump (3) export is connected with tubulation condenser (6), tubulation condenser (6) are connected with comdenstion water liquid seal bucket (10), tubulation condenser (6) pass through vacuum pump (9) and are connected with exhaust treatment device (8).
2. The novel concentrated sulfuric acid adsorption cooling crystallization device according to claim 1, characterized in that: sulfuric acid condenser (2) for being equipped with multistage sulfuric acid condenser (2), pass through the tube coupling between adjacent two-stage sulfuric acid condenser (2), every grade sulfuric acid condenser (2) all is connected with 1# steam jet pump (3), every 1# steam jet pump (3) all are connected with tubulation condenser (6).
3. The novel concentrated sulfuric acid adsorption cooling crystallization device according to claim 1, characterized in that: the tubular condenser (6) for being equipped with multistage tubular condenser (6), pass through the tube coupling between adjacent two-stage tubular condenser (6), be equipped with 2# steam jet pump (7) on the pipeline, each grade tubular condenser (6) all is connected with comdenstion water liquid seal bucket (10).
4. The novel concentrated sulfuric acid adsorption cooling crystallization device according to claim 1, characterized in that: and a cooling water inlet of the tubular condenser (6) is connected with a circulating cooling water device (4), and a water outlet of the tubular condenser (6) is connected with a cooling water cooling tower (5).
5. The novel concentrated sulfuric acid adsorption cooling crystallization device according to claim 1, characterized in that: the shell and tube condenser (6) is a shell and tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779875.4U CN210078887U (en) | 2019-05-28 | 2019-05-28 | Novel concentrated sulfuric acid adsorption cooling crystallization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779875.4U CN210078887U (en) | 2019-05-28 | 2019-05-28 | Novel concentrated sulfuric acid adsorption cooling crystallization device |
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| Publication Number | Publication Date |
|---|---|
| CN210078887U true CN210078887U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920779875.4U Active CN210078887U (en) | 2019-05-28 | 2019-05-28 | Novel concentrated sulfuric acid adsorption cooling crystallization device |
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| CN (1) | CN210078887U (en) |
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- 2019-05-28 CN CN201920779875.4U patent/CN210078887U/en active Active
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