CN201889156U - Combined alkaline washing tower - Google Patents
Combined alkaline washing tower Download PDFInfo
- Publication number
- CN201889156U CN201889156U CN201020633743XU CN201020633743U CN201889156U CN 201889156 U CN201889156 U CN 201889156U CN 201020633743X U CN201020633743X U CN 201020633743XU CN 201020633743 U CN201020633743 U CN 201020633743U CN 201889156 U CN201889156 U CN 201889156U
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- CN
- China
- Prior art keywords
- gas
- tower
- liquid
- combination
- caustic wash
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model relates to a combined alkaline washing tower for gas purification, which comprises a tower casing and a tower cavity, wherein the top end of the tower casing is provided with a purification gas outlet, the tower cavity comprises a gas-liquid separator, a bubble cap tower plate section, a filling section, a gas distributor and a liquid collector from top to bottom, the filling section consists of a liquid distributor arranged at the upper part and a filling absorption region arranged at the lower part, the gas distributor consists of a gas distribution support plate and a plurality of bulges arranged on the gas distribution support plate, and air holes are distributed on the bulges. The combined alkaline washing tower disclosed by the utility model uses alkaline liquor in a certain concentration to absorb carbon dioxide gas, the carbon dioxide gas in vinyl chloride monomers (VCM) in the polyvinyl chloride (PVC) production process can be thoroughly purified through the two-section absorption region arranged in the combined tower, the absorption efficiency is high, in addition, the alkaline liquor can be cyclically used, the final alkaline discharge concentration is only 2 percent to 3 percent, the goals of energy saving and consumption reduction can be realized, and the environment can also be protected.
Description
Technical field
The utility model relates to a kind of gas purification combination caustic wash tower, relates in particular to a kind of purification combination caustic wash tower that is used for removing the VCM carbon dioxide.
Background technology
During the chemical industry forming gas, often be accompanied by the generation of other foreign gas, as carbon dioxide etc., the existence of this class gas has influenced the quality of desired gas greatly, must remove, but in the process of removing, consider the factor of the environment and the energy, in gas purification, do not produce secondary pollution as far as possible.China's Production of PVC industry generally adopts carbide, must get rid of the inert gas carbon dioxide of about 0.5% content wherein before the main intermediate products VCM in the Production of PVC process aggregates into PVC.In original treatment process, adopt two packed tower serial operations, in order to guarantee clean-up effect, the tower domestic demand adds 15% a large amount of alkali lye and absorbs, and system will discharge a large amount of alkaline waste waters like this, the waste resource, contaminated environment, and carbon dioxide is backward in technique among this kind buck purification absorption VCM, and clearance is low, and has a large amount of alkaline waters dischargings to need to handle processing once more after processing.
Summary of the invention
Technical problem to be solved in the utility model has provided the high combination caustic wash tower of a kind of absorption efficiency, be provided with the secondary uptake zone in this combined column: filler uptake zone and bubble cap plate uptake zone, the process gas absorption can thoroughly purify the carbon dioxide in VCM.
For addressing the above problem, the technical solution of the utility model is:
A kind of combination caustic wash tower, comprise tower shell and tower chamber, described tower shell top is provided with clean gas outlet, described tower chamber comprises gas-liquid separator from top to bottom, the bubble cap plate section, packing section, gas distributor and liquid header, described packing section is made up of the liquid distribution trough on top and the filler uptake zone of bottom, described liquid distribution trough top is provided with alkali liquor inlet, be provided with the gas access between described gas distributor and the liquid header, described liquid header is provided with the alkali lye outlet, be provided with alkali liquor inlet between described bubble cap plate section and the gas-liquid separator, described gas distributor is made up of distribution of gas gripper shoe and several projectioies that are arranged on the distribution of gas gripper shoe, is distributed with pore on the described projection.
Preferably, described distribution of gas gripper shoe is fixed on the brace summer of tower shell.
Preferably, described bubble cap plate is a circular bubble cap tray, and described circular bubble cap tray is fixed on the flange, and described flange is fixed on the tower shell.
Preferably, described gas-liquid separator is the demister of vane type, and described demister directly is fixed on the tower shell.
Preferably, distributing some on the described liquid distribution trough is provided with the groove of spacing, and described liquid distribution trough is fixed on the brace summer of tower shell.
Preferably, described filler uptake zone is filled by the garland filler.
Preferably, be provided with the gas phase distributing pipe between gas distributor and the liquid header, described gas access is arranged on the gas phase distributing pipe.
Combination caustic wash tower of the present utility model; utilize certain density alkali lye absorbing carbon dioxide gas; by two sections uptake zones in the combined column; can in the PVC production process, can thoroughly purify the carbon dioxide in VCM; absorption efficiency height, and alkali lye reusable edible, final row's alkali concn has only 2% ~ 3%; can save energy and reduce the cost, can protect environment again.This combined absorbing tower is calcium carbide process PVC sector application at home not only, can also be at other chemical industry, and use in fields such as environmental protection.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: the 1st, clean gas outlet, the 2nd, gas-liquid separator, the 3rd, bubble cap plate section, the 4th, liquid distribution trough, the 5th, filler uptake zone, the 6th, gas distributor, the 7th, liquid header, the 8th, alkali liquor inlet, the 9th, circulation alkali liquor inlet, the 10th, gas access, the 11st, alkali lye outlet, the 12nd, brace summer, the 13rd, flange, the 14th, gas phase distributing pipe, the 15th, overfall, the 16th, sewage draining exit.
The specific embodiment
Further describe the utility model below in conjunction with drawings and Examples, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, combination caustic wash tower of the present utility model comprises tower shell and tower chamber, and the tower shell top is provided with clean gas outlet 1, and the tower chamber comprises gas-liquid separator 2, bubble cap plate section 3, packing section 5, gas distributor 6 and liquid header 7 from top to bottom successively.The gas-liquid separator 2 that is located at top, tower chamber is the demister of vane type, and demister directly is fixed on the tower shell, is provided with alkali liquor inlet 8 between gas-liquid separator 2 and the bubble cap plate section 3.Described bubble cap plate section 3 comprises two-layer circular bubble cap tray, and circular bubble cap tray is fixed on the flange 13, and described flange 13 is fixed on the tower shell.Packing section is made up of the liquid distribution trough 4 on top and the filler uptake zone 5 of bottom, distributing some on the liquid distribution trough 4 and be provided with the groove of spacing, described liquid distribution trough 4 is fixed on the brace summer 12 of tower shell, liquid distribution trough 4 tops are provided with circulation alkali liquor inlet 9, gas distributor 6 is made up of distribution of gas gripper shoe and several hunchbacked types projectioies that are arranged on the distribution of gas gripper shoe, be distributed with several pores on the camel type projection, the distribution of gas gripper shoe is fixed on the brace summer 12 of tower shell, described filler uptake zone 5 is filled by Taylor's PVC garland filler, be provided with gas phase distributing pipe 14 between described gas distributor 6 and the liquid header 7, described gas phase distributing pipe 14 is provided with gas access 10,10 belows, described gas access are provided with overfall 15, liquid header 7 is provided with sewage draining exit 16, and liquid header 7 is provided with alkali lye outlet 11.
When the utility model is worked, need need transportation concentration at alkali liquor inlet 8 is 15% alkali lye, the alkali lye of circulation alkali liquor inlet 9 comes to the secondary alkali lye of liquid header 7 collections, by water pump circulation alkali liquor is transported to circulation alkali liquor inlet 9 for recycling from alkali lye outlet 11.
Before carbide aggregates into PVC, the inert gas carbon dioxide of intermediate product VCM and about 0.5% content is input in the combination caustic wash tower of the present utility model together carries out gas absorption.Mist enters from the gas access 10 of combination caustic wash tower, under the effect of gas phase distributing pipe 14, gas can enter in the combination caustic wash tower cavity smoothly, pore by hunchbacked type projection on the gas distributor 6, enter filler uptake zone 5 and fully contact absorption with alkali lye, under the effect of pressure, alkali lye flow to liquid header 7 from the pore of the top of hunchbacked type projection and low side, and mist then rises from the pore of hunchbacked type projection side.Filler uptake zone 5 receives to the circulation alkali liquor of circulation alkali liquor inlet 9, and the mist of crossing through first class purification enters bubble cap plate section 3, carries out gas absorption again, will adsorb back gas by gas-liquid separator 2 at last and be transferred out by clean gas outlet 1.
Claims (7)
1. combination caustic wash tower, comprise tower shell and tower chamber, it is characterized in that, described tower shell top is provided with clean gas outlet, described tower chamber comprises gas-liquid separator from top to bottom, the bubble cap plate section, packing section, gas distributor and liquid header, described packing section is made up of the liquid distribution trough on top and the filler uptake zone of bottom, described liquid distribution trough top is provided with alkali liquor inlet, be provided with the gas access between described gas distributor and the liquid header, described liquid header is provided with the alkali lye outlet, be provided with alkali liquor inlet between described bubble cap plate section and the gas-liquid separator, described gas distributor is made up of distribution of gas gripper shoe and several projectioies that are arranged on the distribution of gas gripper shoe, is distributed with pore on the described projection.
2. combination caustic wash tower according to claim 1 is characterized in that, described distribution of gas gripper shoe is fixed on the brace summer of tower shell.
3. combination caustic wash tower according to claim 1 is characterized in that, described bubble cap plate is a circular bubble cap tray, and described circular bubble cap tray is fixed on the flange, and described flange is fixed on the tower shell.
4. combination caustic wash tower according to claim 1 is characterized in that, described gas-liquid separator is the demister of vane type, and described demister directly is fixed on the tower shell.
5. combination caustic wash tower according to claim 1 is characterized in that, is distributing some on the described liquid distribution trough to be provided with the groove of spacing, and described liquid distribution trough is fixed on the brace summer of tower shell.
6. combination caustic wash tower according to claim 1 is characterized in that, described filler uptake zone is filled by the garland filler.
7. combination caustic wash tower according to claim 1 is characterized in that, is provided with the gas phase distributing pipe between described gas distributor and the liquid header, and described gas access is arranged on the gas phase distributing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020633743XU CN201889156U (en) | 2010-11-30 | 2010-11-30 | Combined alkaline washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020633743XU CN201889156U (en) | 2010-11-30 | 2010-11-30 | Combined alkaline washing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889156U true CN201889156U (en) | 2011-07-06 |
Family
ID=44218631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020633743XU Expired - Lifetime CN201889156U (en) | 2010-11-30 | 2010-11-30 | Combined alkaline washing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418225A (en) * | 2013-08-08 | 2013-12-04 | 广西大新县雷平永鑫糖业有限公司 | High-efficiency carbon-absorbing tower |
| CN110038725A (en) * | 2019-05-22 | 2019-07-23 | 解标 | A kind of W type purification device |
| CN111272946A (en) * | 2020-03-30 | 2020-06-12 | 合肥工业大学 | Device and method for measuring content of organic carbon in industrial waste salt |
-
2010
- 2010-11-30 CN CN201020633743XU patent/CN201889156U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418225A (en) * | 2013-08-08 | 2013-12-04 | 广西大新县雷平永鑫糖业有限公司 | High-efficiency carbon-absorbing tower |
| CN110038725A (en) * | 2019-05-22 | 2019-07-23 | 解标 | A kind of W type purification device |
| CN110038725B (en) * | 2019-05-22 | 2024-03-01 | 解标 | W-shaped purifying device |
| CN111272946A (en) * | 2020-03-30 | 2020-06-12 | 合肥工业大学 | Device and method for measuring content of organic carbon in industrial waste salt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |