CN211913746U - Acid filtering device of neutralization kettle in chlorinated polyvinyl chloride production - Google Patents
Acid filtering device of neutralization kettle in chlorinated polyvinyl chloride production Download PDFInfo
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- CN211913746U CN211913746U CN201921957667.5U CN201921957667U CN211913746U CN 211913746 U CN211913746 U CN 211913746U CN 201921957667 U CN201921957667 U CN 201921957667U CN 211913746 U CN211913746 U CN 211913746U
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Abstract
The utility model relates to a chlorinated polyvinyl chloride production technical field, a neutralization kettle acid filtering device in chlorinated polyvinyl chloride production, it includes neutralization kettle, neutralization kettle top feed inlet fixed intercommunication has thick liquids entering pipeline, neutralization kettle top water inlet fixed intercommunication has pure water pipeline, neutralization kettle top air inlet fixed intercommunication has nitrogen pipeline, neutralization kettle top gas outlet fixed intercommunication has tail gas pipeline, neutralization kettle left and right sides lateral wall lower part equal fixed mounting has acid filtering valve, neutralization kettle bottom left and right sides equal fixed mounting has acid filtering valve, be provided with the filter screen in the acid filtering valve, acid filtering valve export fixed intercommunication has acid filtering pipeline, acid filtering pipeline is last fixed intercommunication has pure water back flush pipeline, neutralization kettle bottom discharge gate fixed intercommunication has discharge pipeline. The utility model has the advantages of reasonable and compact structure, convenient to use, it is direct through installing the acid filtering pipeline additional at the bottom of neutralization cauldron side and neutralization cauldron, filters out thick liquids, and convenient and fast does not use deacidification centrifuge in the epilogue, reduces the workshop cost, reduces the leakage point, reduces personnel's operation, has safety, laborsaving, simple and convenient, efficient characteristics.
Description
Technical Field
The utility model relates to a chlorinated polyvinyl chloride production technical field is a neutralization kettle acid filter in chlorinated polyvinyl chloride production.
Background
In the existing chlorinated polyvinyl chloride production technology, the acid filtering mode of chlorinated polyvinyl chloride slurry is that the slurry is sent into a centrifuge for separation, hydrochloric acid is sent into a storage tank, and materials are returned into a kettle for waiting for neutralization. Deacidifying centrifuge increases the workshop cost, and personnel need make a round trip to operate, in case centrifuge trouble, all neutralization kettles all can't carry out next step, and upstream and low reaches process can't produce, and the device is out of production, influences normal production efficiency.
Disclosure of Invention
The utility model provides a neutralization kettle acid filtering device in chlorinated polyvinyl chloride production, overcome above-mentioned prior art not enough, it can effectively solve the needs deacidification centrifuge of current chlorinated polyvinyl chloride thick liquids acid filtering device existence and strain sour, manual operation frequently and deacidification centrifuge in case the unable normal problem of producing of fault device.
The technical scheme of the utility model is realized through following measure: a neutralization kettle acid filtering device in chlorinated polyvinyl chloride production comprises a neutralization kettle, a slurry inlet pipeline is fixedly communicated with a feed inlet at the top of the neutralization kettle, a pure water pipeline is fixedly communicated with a water inlet at the top of the neutralization kettle, a nitrogen pipeline is fixedly communicated with a gas inlet at the top of the neutralization kettle, a tail gas pipeline is fixedly communicated with a gas outlet at the top of the neutralization kettle, acid filtering valves are fixedly arranged at the lower parts of the left and right side walls of the neutralization kettle, acid filtering valves are fixedly arranged at the left and right sides of the bottom of the neutralization kettle, a filter screen is arranged in each acid filtering valve, a first acid filtering pipeline is fixedly communicated with a lower acid filtering valve outlet at the left side wall of the neutralization kettle, a pure water back flushing pipeline is fixedly communicated with the first acid filtering pipeline, a second acid filtering pipeline is fixedly communicated with a lower acid filtering valve outlet at the right side wall of the neutralization kettle, a first back flushing branch pipe is communicated between the second acid filtering pipeline and the pure water back flushing pipeline, and a third acid filtering pipeline, a fourth acid filtering pipeline is fixedly communicated with an outlet of the acid filtering valve on the right side of the bottom of the neutralization kettle, a second backwashing branch pipe is communicated between the third acid filtering pipeline and the pure water backwashing pipeline, a third backwashing branch pipe is communicated between the second backwashing branch pipe and the fourth acid filtering pipeline, and a discharge pipeline is fixedly communicated with a discharge port on the bottom of the neutralization kettle.
The following are further optimization or/and improvement of the technical scheme of the utility model:
a valve is fixedly arranged on a first acid filtering pipeline between the outlet of the pure water backwashing pipeline and the outlet of the acid filtering valve, and a sight glass and an acid filtering program control valve are sequentially and fixedly arranged on an acid filtering pipeline between the outlet of the pure water backwashing pipeline and the outlet of the first acid filtering pipeline; a second acid filtering pipeline between the outlet of the first back washing branch pipe and the inlet of the second acid filtering pipeline is sequentially and fixedly provided with a sight glass and an acid filtering program control valve; a sight glass and an acid filtering program control valve are sequentially and fixedly mounted on a third acid filtering pipeline between the outlet of the second backwashing branch pipe and the inlet of the third acid filtering pipeline; and a sight glass and an acid filtering program control valve are sequentially and fixedly arranged on a fourth acid filtering pipeline between the outlet of the third backwashing branch pipe and the inlet of the fourth acid filtering pipeline.
Valves are fixedly arranged on the pure water backwashing pipelines, and valves are fixedly arranged on the first pure water backwashing branch pipe, the second backwashing branch pipe and the third backwashing branch pipe.
Above-mentioned fixed mounting has the tail gas relief valve on the tail gas pipeline, is provided with the relief valve on the tail gas pipeline between tail gas relief valve and the gas outlet of neutralization cauldron top, and fixed mounting has feeding programmable valve on the thick liquids entering pipeline, and fixed mounting has nitrogen gas programmable valve on the nitrogen gas pipeline, and fixed mounting has pure water flowmeter and pure water programmable valve in proper order on the pure water backwash pipeline, and fixed mounting has ejection of compact programmable valve on the discharging pipe line.
And a remote transmission pressure gauge is arranged at the top of the neutralization kettle.
A stirrer is arranged in the neutralization kettle.
The utility model has the advantages of reasonable and compact structure, convenient to use, it is direct through installing the acid filtering pipeline additional at the bottom of neutralization cauldron side and neutralization cauldron, filters out thick liquids, and convenient and fast does not use deacidification centrifuge in the epilogue, reduces the workshop cost, reduces the leakage point, reduces personnel's operation, has safety, laborsaving, simple and convenient, efficient characteristics.
Drawings
FIG. 1 is a schematic process flow diagram of the preferred embodiment of the present invention.
The codes in the figures are respectively: 1 is a slurry inlet pipeline, 2 is a pure water pipeline, 3 is a nitrogen pipeline, 4 is a pure water flow meter, 5 is a pure water program control valve, 6 is a nitrogen program control valve, 7 is a pure water backwashing pipeline, 8 is an acid filtering program control valve, 9 is a sight glass, 10 is an acid filtering valve, 11 is a first backwashing branch pipe, 12 is a discharge program control valve, 13 is a neutralization kettle, 14 is a stirrer, 15 is a remote transmission pressure gauge, 16 is a feed program control valve, 17 is a tail gas pressure relief valve, 18 is a safety valve, 19 is a discharge pipeline, 20 is a tail gas pipeline, 21 is a first acid filtering pipeline, 22 is a second acid filtering pipeline, 23 is a second backwashing branch pipe, 24 is a third acid filtering pipeline, 25 is a fourth acid filtering pipeline, and 26 is a third backwashing branch pipe.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in figure 1, the acid filtering device of the neutralization kettle 13 in the production of chlorinated polyvinyl chloride comprises a neutralization kettle 13, a slurry inlet pipeline 1 is fixedly communicated with a feed inlet at the top of the neutralization kettle 13, a pure water pipeline 2 is fixedly communicated with a water inlet at the top of the neutralization kettle 13, a nitrogen pipeline 3 is fixedly communicated with a gas inlet at the top of the neutralization kettle 13, a tail gas pipeline 20 is fixedly communicated with a gas outlet at the top of the neutralization kettle 13, acid filtering valves 10 are fixedly arranged at the lower parts of the left and right side walls of the neutralization kettle 13, the acid filtering valves 10 are fixedly arranged at the left and right sides of the bottom of the neutralization kettle 13, a filter screen is arranged in each acid filtering valve 10, a first acid filtering pipeline 21 is fixedly communicated with an outlet of the acid filtering valve 10 at the lower part of the left side wall of the neutralization kettle 13, a pure water back flush pipeline 7 is fixedly communicated with the first acid filtering pipeline 21, a second acid filtering pipeline 22 is fixedly communicated with an outlet of the acid filtering valve 10 at the lower part of the right side wall of, the outlet of the acid filtering valve 10 on the left side of the bottom of the neutralization kettle 13 is fixedly communicated with a third acid filtering pipeline 24, the outlet of the acid filtering valve 10 on the right side of the bottom of the neutralization kettle 13 is fixedly communicated with a fourth acid filtering pipeline 25, a second backwashing branch pipe 23 is communicated between the third acid filtering pipeline 24 and the pure water backwashing pipeline 7, a third backwashing branch pipe 26 is communicated between the second backwashing branch pipe 23 and the fourth acid filtering pipeline 25, and a discharge pipeline 19 is fixedly communicated with a discharge outlet on the bottom of the neutralization kettle 13.
The utility model discloses an install additional and strain sour pipeline 21 and directly filter out the thick liquids in 13 both sides of neutralization cauldron and 13 bottoms of neutralization cauldron, convenient and fast, the low reaches process does not use deacidification centrifuge, both reduces the workshop cost, reduces the leakage point, reduces personnel's operation again. When the acid filtering of the neutralization kettle 13 is abnormal and cannot be solved, a single neutralization kettle 13 can be directly stopped for treatment, other neutralization kettles 13 can still continue to produce, and the normal production of a workshop is not influenced.
The acid filtering device of the neutralization kettle 13 in the production of the chlorinated polyvinyl chloride can be further optimized or/and improved according to actual needs:
as shown in the attached figure 1, a valve is fixedly arranged on a first acid filtering pipeline 21 between the outlet of the pure water backwashing pipeline 7 and the outlet of the acid filtering valve 10, and a viewing mirror 9 and an acid filtering program control valve 8 are sequentially and fixedly arranged on the acid filtering pipeline 21 between the outlet of the pure water backwashing pipeline 7 and the outlet of the first acid filtering pipeline 21; a second acid filtering pipeline 22 between the outlet of the first back washing branch pipe 11 and the inlet of the second acid filtering pipeline 22 is sequentially and fixedly provided with a viewing mirror 9 and an acid filtering program control valve 8; a sight glass 9 and an acid filtering program control valve 8 are sequentially and fixedly arranged on a third acid filtering pipeline 24 between the outlet of the second backwashing branch pipe 23 and the inlet of the third acid filtering pipeline 24; a sight glass 9 and an acid filtering program control valve 8 are sequentially and fixedly arranged on a fourth acid filtering pipeline 24 between the outlet 26 of the third back washing branch pipe and the inlet of the fourth acid filtering pipeline 25.
As shown in the attached figure 1, valves are fixedly arranged on the pure water backwashing pipeline 7, and valves are fixedly arranged on the first pure water backwashing branch pipe 11, the second backwashing branch pipe 23 and the third backwashing branch pipe 26.
As shown in the attached drawing 1, a tail gas pressure release valve 17 is fixedly installed on a tail gas pipeline 20, a safety valve 18 is arranged on the tail gas pipeline 20 between the tail gas pressure release valve 17 and a gas outlet at the top of the neutralization kettle 13, a feeding program control valve 16 is fixedly installed on a slurry inlet pipeline 1, a nitrogen program control valve 6 is fixedly installed on a nitrogen pipeline 3, a pure water flow meter 4 and a pure water program control valve 5 are fixedly installed on a pure water backwashing pipeline 7 in sequence, and a discharging program control valve 12 is fixedly installed on a discharging pipeline 19.
According to the needs, two steel lining F40 acid filtering plates are arranged in the acid filtering valve 10, a 120-mesh polytetrafluoroethylene filter screen is clamped between the acid filtering plates, washing water is additionally arranged on an acid filtering pipeline 21, during acid filtering, the four acid filtering valves 10 are opened, nitrogen is opened for pressurizing, kettle pressure is controlled within a certain value during acid filtering, personnel can observe the acid filtering condition at a sight glass 9, if the liquid level of hydrochloric acid does not rise for a long time, the filter screen is judged to be blocked by the materials, the nitrogen program control valve 6 is closed, the tail gas pressure relief valve 17 is opened, the washing water pipeline valve is opened to wash the filter screen of the acid filtering valve 10 for 1min, then the washing water valve is closed, and acid filtering is continued.
As shown in the attached figure 1, a remote pressure gauge 15 is arranged at the top of the neutralization kettle 13.
The remote pressure gauge 15 is convenient for operators to monitor the kettle pressure of the neutralization kettle 13 in time.
As shown in FIG. 1, a stirrer 14 is provided in the neutralization tank.
The stirrer 14 is convenient for dissipating heat in time and preventing reaction substances from being bonded during the reaction of the neutralization kettle 13.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (10)
1. A neutralization kettle acid filtering device in chlorinated polyvinyl chloride production is characterized by comprising a neutralization kettle, wherein a feed inlet at the top of the neutralization kettle is fixedly communicated with a slurry inlet pipeline, a water inlet at the top of the neutralization kettle is fixedly communicated with a pure water pipeline, a gas inlet at the top of the neutralization kettle is fixedly communicated with a nitrogen pipeline, a gas outlet at the top of the neutralization kettle is fixedly communicated with a tail gas pipeline, acid filtering valves are fixedly arranged at the lower parts of the left and right side walls of the neutralization kettle, acid filtering valves are fixedly arranged at the left and right sides of the bottom of the neutralization kettle, filter screens are arranged in the acid filtering valves, a first acid filtering pipeline is fixedly communicated with an acid filtering valve outlet at the lower part of the left side wall of the neutralization kettle, a pure water backwashing pipeline is fixedly communicated with the first acid filtering pipeline, a second acid filtering pipeline is fixedly communicated with an acid filtering valve outlet at the lower part of the right side wall of the neutralization kettle, a first branch pipeline is communicated with the pure water backwashing pipeline, a third acid filtering pipeline is fixedly communicated with an, a fourth acid filtering pipeline is fixedly communicated with an outlet of the acid filtering valve on the right side of the bottom of the neutralization kettle, a second backwashing branch pipe is communicated between the third acid filtering pipeline and the pure water backwashing pipeline, a third backwashing branch pipe is communicated between the second backwashing branch pipe and the fourth acid filtering pipeline, and a discharge pipeline is fixedly communicated with a discharge port on the bottom of the neutralization kettle.
2. The acid filtering device for the neutralization kettle in the production of chlorinated polyvinyl chloride as claimed in claim 1, wherein a valve is fixedly arranged on a first acid filtering pipeline between the outlet of the pure water backwashing pipeline and the outlet of the acid filtering valve, and a sight glass and an acid filtering program control valve are sequentially and fixedly arranged on an acid filtering pipeline between the outlet of the pure water backwashing pipeline and the outlet of the first acid filtering pipeline; a second acid filtering pipeline between the outlet of the first back washing branch pipe and the inlet of the second acid filtering pipeline is sequentially and fixedly provided with a sight glass and an acid filtering program control valve; a sight glass and an acid filtering program control valve are sequentially and fixedly mounted on a third acid filtering pipeline between the outlet of the second backwashing branch pipe and the inlet of the third acid filtering pipeline; and a sight glass and an acid filtering program control valve are sequentially and fixedly arranged on a fourth acid filtering pipeline between the outlet of the third backwashing branch pipe and the inlet of the fourth acid filtering pipeline.
3. The acid filtering device for the neutralization kettle in the production of chlorinated polyvinyl chloride as claimed in claim 1 or 2, wherein valves are fixedly arranged on the pure water backwashing pipeline, and valves are fixedly arranged on the first pure water backwashing branch pipe, the second backwashing branch pipe and the third backwashing branch pipe.
4. The acid filtering device of the neutralization kettle in the chlorinated polyvinyl chloride production according to claim 1 or 2, wherein a tail gas pressure relief valve is fixedly installed on a tail gas pipeline, a safety valve is arranged on the tail gas pipeline between the tail gas pressure relief valve and an air outlet at the top of the neutralization kettle, a feeding program control valve is fixedly installed on a slurry inlet pipeline, a nitrogen program control valve is fixedly installed on a nitrogen pipeline, a pure water flow meter and a pure water program control valve are sequentially and fixedly installed on a pure water backwashing pipeline, and a discharging program control valve is fixedly installed on a discharging pipeline.
5. The acid filtering device of the neutralization kettle in the chlorinated polyvinyl chloride production according to claim 3, wherein a tail gas pressure relief valve is fixedly installed on a tail gas pipeline, a safety valve is arranged on the tail gas pipeline between the tail gas pressure relief valve and an air outlet at the top of the neutralization kettle, a feeding program control valve is fixedly installed on a slurry inlet pipeline, a nitrogen program control valve is fixedly installed on a nitrogen pipeline, a pure water flow meter and a pure water program control valve are sequentially and fixedly installed on a pure water backwashing pipeline, and a discharging program control valve is fixedly installed on a discharging pipeline.
6. The acid filtering device of the neutralization kettle in the production of the chlorinated polyvinyl chloride according to claim 1, 2 or 5, wherein a remote pressure gauge is arranged at the top of the neutralization kettle.
7. The acid filtering device of the neutralization kettle in the production of the chlorinated polyvinyl chloride as claimed in claim 3, wherein a remote pressure gauge is arranged at the top of the neutralization kettle.
8. The acid filtering device of the neutralization kettle in the production of the chlorinated polyvinyl chloride as claimed in claim 4, wherein a remote pressure gauge is arranged at the top of the neutralization kettle.
9. The acid filtering device of the neutralization kettle for producing chlorinated polyvinyl chloride according to claim 1, 2, 5, 7 or 8, wherein a stirrer is arranged in the neutralization kettle.
10. The acid filtering device of the neutralization kettle in the production of the chlorinated polyvinyl chloride as claimed in claim 6, wherein a stirrer is arranged in the neutralization kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957667.5U CN211913746U (en) | 2019-11-13 | 2019-11-13 | Acid filtering device of neutralization kettle in chlorinated polyvinyl chloride production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957667.5U CN211913746U (en) | 2019-11-13 | 2019-11-13 | Acid filtering device of neutralization kettle in chlorinated polyvinyl chloride production |
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| Publication Number | Publication Date |
|---|---|
| CN211913746U true CN211913746U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921957667.5U Active CN211913746U (en) | 2019-11-13 | 2019-11-13 | Acid filtering device of neutralization kettle in chlorinated polyvinyl chloride production |
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| Country | Link |
|---|---|
| CN (1) | CN211913746U (en) |
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- 2019-11-13 CN CN201921957667.5U patent/CN211913746U/en active Active
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