CN210545040U - Byproduct hydrochloric acid desulphurization unit - Google Patents
Byproduct hydrochloric acid desulphurization unit Download PDFInfo
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- CN210545040U CN210545040U CN201920982652.8U CN201920982652U CN210545040U CN 210545040 U CN210545040 U CN 210545040U CN 201920982652 U CN201920982652 U CN 201920982652U CN 210545040 U CN210545040 U CN 210545040U
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- hydrochloric acid
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Abstract
The utility model relates to a chemical industry field, concretely relates to by-product hydrochloric acid desulphurization unit, including a plurality of reation kettle, plate and frame filter press and hydrochloric acid storage tank, reation kettle's top all is equipped with reactant import and by-product hydrochloric acid import, and reation kettle's bottom is equipped with the reaction liquid export, the reaction liquid export collects through the pipeline and connects the female pipe of export, the female pipe of export passes through the feed inlet of centrifugal pump connecting plate frame filter press, the plate and frame filter press is equipped with the discharge gate, the finished product jar is connected to the discharge gate, the finished product jar passes through centrifugal pump two and connects the hydrochloric acid storage tank. The device not only has simple operation process, but also has good desulfurization effect, and can reduce the content of sulfate radicals in the byproduct hydrochloric acid to below 0.2 percent.
Description
Technical Field
The utility model relates to a chemical industry field, concretely relates to byproduct hydrochloric acid desulphurization unit.
Background
The by-product hydrochloric acid generated in the process of producing chloroacetyl chloride by using a sulfur method contains about 8 percent of sulfate radical, the by-product hydrochloric acid containing the sulfate radical cannot meet the use requirement of the industrial by-product hydrochloric acid, the sulfate radical in the by-product hydrochloric acid needs to be separated in order to meet the quality requirement of the industrial hydrochloric acid, and common sulfate radical separation methods comprise a precipitation method and a polyethylene microporous filtration method, so that the precipitation method is necessary to provide a device for separating the sulfate radical from the by-product hydrochloric acid.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a by-product hydrochloric acid desulphurization unit, the device is simple in operation process, and the desulfurization is effectual moreover, enables the sulfate content in the by-product hydrochloric acid and reduces to below 0.2%.
The utility model discloses a realize through following technical scheme: the utility model provides a byproduct hydrochloric acid desulphurization unit, its characterized in that, includes a plurality of reation kettle, plate and frame filter press and hydrochloric acid storage tank, reation kettle's top all is equipped with reactant import and byproduct hydrochloric acid import, and reation kettle's bottom is equipped with the reaction liquid export, the reaction liquid export is collected through the pipeline and is connected the female pipe of export, the female pipe of export passes through the feed inlet of centrifugal pump connecting plate frame filter press, plate and frame filter press is equipped with the discharge gate, the finished product jar is connected to the discharge gate, the finished product jar passes through centrifugal pump two and connects the hydrochloric acid storage tank.
As a preferred scheme, the number of the reaction kettles is 4, the reaction kettles are respectively a No. 1 reaction kettle, a No. 2 reaction kettle, a No. 3 reaction kettle and a No. 4 reaction kettle, and the top of each reaction kettle is provided with a tail gas discharge port.
As a preferred scheme, the reaction liquid outlets are respectively provided with a control single valve, and the outlet main pipe is provided with a control main valve.
As a preferred scheme, a control valve is arranged on a pipeline connected with the first centrifugal pump and the plate-and-frame filter press, a compressed air inlet pipe is arranged on a pipeline connected with the control valve and the plate-and-frame filter press, and an air inlet valve is arranged on the compressed air inlet pipe.
As a preferred scheme, the discharge port of the plate-and-frame filter press is further connected with a crude product tank through a pipeline, a liquid discharge port is formed in the bottom of the crude product tank and communicated with a liquid discharge pipeline, and a liquid discharge valve is arranged on the liquid discharge pipeline.
As a preferred scheme, a first discharge valve is arranged on a pipeline connecting a discharge port of the plate-and-frame filter press and the crude product tank, and a second feed valve is arranged on a pipeline connecting the discharge port of the plate-and-frame filter press and the crude product tank.
The utility model has the advantages that:
1. the utility model discloses can adopt calcium chloride or barium chloride as the reactant, make it react in reation kettle with the by-product hydrochloric acid, then a series of operations will produce the reaction after exhaust material carry to the plate frame filter press, then, discharge the sulfate radical with calcium sulfate or barium sulfate's form through the plate frame filter press to realize the desulfurated purpose of by-product hydrochloric acid.
2. The utility model discloses the content of sulfate radical in the by-product hydrochloric acid that has handled is reduced to below 0.2% by original 8%, and desulfurization effect is good to satisfy the requirement of industry by-product hydrochloric acid.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the attached figure 1, a reaction kettle 1, a reactant inlet 11, a byproduct hydrochloric acid inlet 12, a reaction liquid outlet 13, a tail gas discharge outlet 14, a main outlet pipe 15, a single control valve 16, a main control valve 17, a control valve 18, a compressed air inlet pipe 19, an air inlet valve 20, a first centrifugal pump 2, a 3-plate frame filter press, a feed inlet 31, a discharge outlet 32, a first discharge valve 33, a second discharge valve 34, a crude product tank 4, a liquid discharge valve 41, a finished product tank 5, a second centrifugal pump 6 and a hydrochloric acid storage tank 7.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a byproduct hydrochloric acid desulfurization device is characterized by comprising a plurality of reaction kettles 1, a plate-and-frame filter press 3 and a hydrochloric acid storage tank 7, wherein the tops of the reaction kettles 1 are respectively provided with a reactant inlet 11 and a byproduct hydrochloric acid inlet 12, the bottom of the reaction kettle 1 is provided with a reaction liquid outlet 13, the reaction liquid outlet 13 is converged and connected with an outlet mother pipe 15 through a pipeline, the outlet mother pipe 15 is connected with a feed inlet 31 of the plate-and-frame filter press 3 through a centrifugal pump one 2, the plate-and-frame filter press 3 is provided with a discharge port 32, the discharge port 32 is connected with a finished product tank 5, and the finished product tank 5 is connected with the.
As a preferred scheme, the number of the reaction kettles 1 is 4, the reaction kettles are respectively No. 1, No. 2, No. 3 and No. 4, and the top of each reaction kettle 1 is provided with a tail gas discharge port 14.
Preferably, the reaction liquid outlets 13 are provided with single control valves 16, and the outlet main pipe 15 is provided with a main control valve 17.
Preferably, a control valve 18 is arranged on a pipeline connecting the first centrifugal pump 2 and the plate-and-frame filter press 3, a compressed air inlet pipe 19 is arranged on a pipeline connecting the control valve 18 and the plate-and-frame filter press 3, an air inlet valve 20 is arranged on the compressed air inlet pipe, and compressed air arranged at a feed inlet of the plate-and-frame filter press 3 is used for drying filter cakes pressed in the plate-and-frame filter press 3.
As a preferred scheme, the discharge port 32 of the plate-and-frame filter press 3 is further connected with the crude product tank 4 through a pipeline, the bottom of the crude product tank 4 is provided with a liquid discharge port, the liquid discharge port is communicated with a liquid discharge pipeline, the liquid discharge pipeline is provided with a liquid discharge valve 41, the discharge port of the plate-and-frame filter press is further connected with a crude product acid tank, the crude product acid is cleaning water discharged when the plate-and-frame filter press is cleaned, and the crude product acid is recycled to the first-stage mold-lowering to absorb hydrogen chloride due to low concentration so as.
As a preferable scheme, a first discharge valve 33 is arranged on a pipeline connecting a discharge port 32 of the plate-and-frame filter press 3 with the crude product tank 4, and a second feed valve 34 is arranged on a pipeline connecting the finished product tank 5.
The byproduct hydrochloric acid generated in the chloroacetyl chloride production process contains a small amount of sulfate radicals, the byproduct hydrochloric acid containing the sulfate radicals and a reactant are simultaneously added into a reaction kettle for stirring reaction, a solid-liquid mixed material generated after the reaction is conveyed to a plate-and-frame filter press through a first centrifugal pump, the solid-liquid mixed material is separated through the plate-and-frame filter press, calcium sulfate pressed into a filter cake through the plate-and-frame filter press is discharged from the bottom of the plate-and-frame filter press, filtrate discharged from a discharge port of the plate-and-frame filter press is the finished product hydrochloric acid which is desulfurized, and the finished product hydrochloric acid is conveyed to a.
The technical features other than those described in the specification are known to those skilled in the art.
Claims (6)
1. The utility model provides a byproduct hydrochloric acid desulphurization unit, its characterized in that, includes a plurality of reation kettle (1), plate and frame filter press (3) and hydrochloric acid storage tank (7), the top of reation kettle (1) all is equipped with reactant import (11) and byproduct hydrochloric acid import (12), and the bottom of reation kettle (1) is equipped with reaction liquid export (13), reaction liquid export (13) collect through the pipeline and connect export female pipe (15), export female pipe (15) connect feed inlet (31) of plate and frame filter press (3) through centrifugal pump (2), plate and frame filter press (3) are equipped with discharge gate (32), finished product jar (5) is connected in discharge gate (32), finished product jar (5) are through centrifugal pump two (6) connection hydrochloric acid storage tank (7).
2. The desulphurization device of byproduct hydrochloric acid according to claim 1, wherein the number of the reaction kettles (1) is 4, and the reaction kettles are respectively No. 1, No. 2, No. 3 and No. 4, and the top of each reaction kettle (1) is provided with a tail gas discharge port (14).
3. The desulfurization apparatus for byproduct hydrochloric acid according to claim 1, wherein each of the outlets (13) of the reaction solution is provided with a single control valve (16), and the outlet header (15) is provided with a main control valve (17).
4. The desulphurization device of byproduct hydrochloric acid according to claim 1, wherein a control valve (18) is arranged on the pipeline connecting the first centrifugal pump (2) and the plate-and-frame filter press (3), a compressed air inlet pipe (19) is arranged on the pipeline connecting the control valve (18) and the plate-and-frame filter press (3), and an air inlet valve (20) is arranged on the compressed air inlet pipe.
5. The desulphurization device of byproduct hydrochloric acid according to claim 1, wherein the discharge port (32) of the plate-and-frame filter press (3) is further connected with a crude product tank (4) through a pipeline, the bottom of the crude product tank (4) is provided with a liquid discharge port, the liquid discharge port is communicated with a liquid discharge pipeline, and the liquid discharge pipeline is provided with a liquid discharge valve (41).
6. The desulphurization device of byproduct hydrochloric acid according to claim 5, wherein a first discharge valve (33) is arranged on the pipeline connecting the discharge port (32) of the plate-and-frame filter press (3) and the crude product tank (4), and a second feed valve (34) is arranged on the pipeline connecting the finished product tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982652.8U CN210545040U (en) | 2019-06-27 | 2019-06-27 | Byproduct hydrochloric acid desulphurization unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982652.8U CN210545040U (en) | 2019-06-27 | 2019-06-27 | Byproduct hydrochloric acid desulphurization unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210545040U true CN210545040U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920982652.8U Active CN210545040U (en) | 2019-06-27 | 2019-06-27 | Byproduct hydrochloric acid desulphurization unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210545040U (en) |
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2019
- 2019-06-27 CN CN201920982652.8U patent/CN210545040U/en active Active
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