CN208814656U - A kind of purification device of water treatment agent by-product hydrogen chloride - Google Patents
A kind of purification device of water treatment agent by-product hydrogen chloride Download PDFInfo
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- CN208814656U CN208814656U CN201821164849.2U CN201821164849U CN208814656U CN 208814656 U CN208814656 U CN 208814656U CN 201821164849 U CN201821164849 U CN 201821164849U CN 208814656 U CN208814656 U CN 208814656U
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Abstract
The utility model discloses a kind of purification devices of water treatment agent by-product hydrogen chloride, it include: gas air-introduced machine, condenser, condensate liquid receiving tank, gas-liquid separator, the discharge pipe that water treatment agent device for absorbing tail gas contains moisture hydrogen chloride gas is connect by hydrogen chloride gas holder with gas air-introduced machine, the gas air-introduced machine exhaust outlet by pipeline successively with first-stage condenser, secondary condenser, the connection of three-level condenser, three-level condenser gas outlet is connect with gas-liquid separator, gas-liquid separator gas vent passes through compressor, heated device is connect with hydrogen chloride gas downstream product synthesizer pipeline；First-stage condenser liquid outlet is connect with level-one condensate liquid tourie, and secondary condenser, three-level condenser liquid outlet are connect with B-grade condensation liquid tourie.This hydrogen chloride purifying apparatus structure is simple and convenient to operate, cost of investment is low, occupation area of equipment is small, and purified by-product hydrogen chloride gas drying, purity are up to 99.9% or more.
Description
Technical field
The present invention relates to a kind of hydrogen chloride purifying devices, more particularly, to a kind of water treatment agent hydroxy ethylene diphosphonic acid pair
Product cryogenic purification device, is equally applicable to other field of gas purification.
Background technique
By-product hydrogen chloride or hydrochloric acid have become chemical industry manufacturing industry urgent problem to be solved, effective to purify and utilize hydrogen chloride
Gas is not only related to the economic benefit of enterprise, but also concerning environmental protection problem.To the purifying dress of hydrogen chloride gas
It sets, domestic and international patent document has conducted extensive research report according to the source of hydrogen chloride.Patent publication No. CN201098602Y's
" a kind of PVC production line hydrogen chloride emission processing unit " is related to a kind of PVC production line hydrogen chloride emission and filters absorption of device.Specially
Sharp publication number CN1326766C " manufacturing technique method and process units of electronic chemical product high purity hydrochloric acid " is with hydrogen chloride gas
Raw material, successively purified purifying column T-1 removes all organic matters, purified purifying column T-2, T-3, T- in gas by active carbon
4 are washed by the three-level of acidic liquid cleanser, inversely absorb the electron level salt of preparation 36% on the absorption tower T-5 with second level pure water
Acid.
Japan Patent JP 0543203 passes through high thermal evaporation using the heater and packed tower of tantalum or resin impregnated carbon material
From the device of hydrochloride aqueous solution recycling hydrogen chloride.Japan Patent JP 0530101 is using zeolite, porous acid oxidase object and work
Property charcoal be that packed absorber hydrogen chloride is desorbed at low pressures obtains dense hydrogen chloride.European patent EP 464758 also describes one
Kind using by-product hydrogen chloride wherein organic impurities combustibility, contacted in high-temp combustion device with combustion-supporting source, make organic matter
It is converted to carbon dioxide or other compounds removes.German patent DE 3716783 discloses a kind of from gas chromatography gaseous mixture
In hydrogen chloride refined by deep cooling-compression-distillation technology condensation separation method.
The industrial metaplasia for synthesizing water treatment agent hydroxy ethylene diphosphonic acid HEDP using acetic acid and phosphorus trichloride are raw material
Production process can generate a large amount of by-product hydrogen chloride gas.Due to the influence of synthesis technology, hydrogen chloride gas know from experience carry a part of water and
Acetic acid steam, make hydrogen chloride gas applies critical constraints, while also restrict the industrialization development scale of major product HEDP.
This just needs a kind of purification device of water treatment agent by-product hydrogen chloride, by physical method purification, reaches secondary
The recycling for producing hydrogen chloride gas recycles, safety and environmental protection.
Summary of the invention
The present invention is intended to provide a kind of structure is simple, easy to operate, occupied area is small, the water treatment agent by-product of safety and environmental protection
The purification device of hydrogen chloride.To solve the above-mentioned problems, the technical scheme adopted by the invention is that,
A kind of purification device of water treatment agent by-product hydrogen chloride, comprising: gas air-introduced machine, condenser, condensate liquid receiving tank,
Gas-liquid separator, the discharge pipe that water treatment agent device for absorbing tail gas contains moisture hydrogen chloride gas pass through hydrogen chloride gas holder and gas
The connection of body air-introduced machine, the gas air-introduced machine exhaust outlet are successively condensed with first-stage condenser, secondary condenser, three-level by pipeline
Device connection, three-level condenser gas outlet are connect with gas-liquid separator, and gas-liquid separator gas vent passes through compressor, heated device
It is connect with hydrogen chloride gas downstream product synthesizer pipeline；First-stage condenser liquid outlet is connect with level-one condensate liquid receiving tank,
Secondary condenser, three-level condenser liquid outlet are connect with B-grade condensation liquid receiving tank.
According to the purification device of the water treatment agent by-product hydrogen chloride, the level-one condensate liquid receiving tank and B-grade condensation liquid
Receiving tank is connected by pipeline, and pipeline is connected between first-stage condenser, secondary condenser simultaneously, establishes vapor liquid equilibrium company
It connects.
According to the purification device of the water treatment agent by-product hydrogen chloride, the first-stage condenser cooling medium is cooling water,
It is connect with recirculating cooling water system；Secondary condenser, three-level condenser establish connection with ice maker respectively.
According to the purification device of the water treatment agent by-product hydrogen chloride, the gas air-introduced machine uses polypropylene or glass reinforced plastic
Centrifugal blower.
According to the purification device of the water treatment agent by-product hydrogen chloride, the gas air-introduced machine is centrifuged wind using glass reinforced plastic
Machine.
According to the purification device of the water treatment agent by-product hydrogen chloride, it is equal that condensate liquids at different levels receive pot bottom condensate outlet
By the way that with valvular pipeline, access will be for that will separate the water treatment agent device for absorbing tail gas that liquid recycles.
According to the purification device of the water treatment agent by-product hydrogen chloride, the gas-liquid separator bottom liquid outlet and second level
The connection of condensate liquid receiving tank.
Positive effect of the invention is:
1. present apparatus structure is simple and convenient to operate, cost of investment is low, occupation area of equipment is small.
2. dry by the purified by-product hydrogen chloride gas of the present apparatus, purity up to 99.9% or more, can be used for dyestuff,
The synthesis of the industries such as medicine, food, printing and dyeing, leather, metallurgy fining product.
3. the present apparatus realizes that the recycling of by-product hydrogen chloride gas recycles, safety and environmental protection.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Wherein: 1, hydrogen chloride gas holder, 2, gas air-introduced machine, 3, first-stage condenser, 4, secondary condenser, 5, three-level condensation
Device, 6, gas-liquid separator, 7, heater, 8, level-one condensate liquid receiving tank, 9, B-grade condensation liquid receiving tank.
Specific embodiment
1 the present invention will be further described with reference to the accompanying drawing.
The purification device of water treatment agent by-product hydrogen chloride, comprising: hydrogen chloride gas holder, first-stage condenser, secondary condenser, three
Grade condenser, gas-liquid separator, heater and condensed in two stages liquid receiving tank.From water treatment agent hydroxy ethylene diphosphonic acid
(HEDP) hydrogen chloride gas of the aqueous and a small amount of acetic acid steam of device for absorbing tail gas enters the hydrogen chloride gas holder 1 in device.Gas
Cabinet is a kind of for storing various industrial gasses, while a kind of container for being also used for the inhomogeneities of balanced gas expense is set
It is standby.Wherein, the pipeline between hydrogen chloride gas holder and first-stage condenser 3 is equipped with gas air-introduced machine 2.First-stage condenser 3, second level are cold
Condenser 4,5 gas circuit of three-level condenser pass through pipeline tandem connection together.5 gas outlet of three-level condenser and gas-liquid separator 6 are logical
It crosses pipeline and establishes connection.
First-stage condenser 3, the respective liquid outlet of secondary condenser 4 respectively with level-one condensate liquid receiving tank 8 and B-grade condensation
Liquid receiving tank 9 connects.5 gas vent of three-level condenser is connected with gas-liquid separator.Level-one condensate liquid receiving tank 8 and B-grade condensation
It is connected between liquid receiving tank 9 by pipeline, establishes connection, and pipeline connects between first-stage condenser 3, secondary condenser 4 simultaneously
It is logical, establish gas-liquid equilibrium connection.6 gas of gas-liquid separator enters gas buffer tank by compressor (not embodying in device)
(not embodying in device) then the heated heat treatment of device 7 accesses hydrogen chloride gas downstream product synthesizer.Condensate liquids at different levels
Receiving tank (level-one condensate liquid receiving tank and B-grade condensation liquid receiving tank) valvular pipeline of bottom liquid outlet connecting band accesses water
Inorganic agent HEDP acetate acid tail gas absorption plant.
If Fig. 1 dotted line indicates, the first-stage condenser 3 is connect with recirculating cooling water system, and using water-cooled process, use is cold
But for water as circulatory mediator, water-cooled process temperature range is 10~40 DEG C.Secondary condenser uses ice-cold processing, secondary condenser
Connection is established with ice maker, ice-cold temperature ranges are 0~-5 DEG C.Three-level condenser use ice-cold processing, three-level condenser with
Ice maker establishes connection, and ice-cold temperature ranges are -5~-15 DEG C.
Hydrogen chloride has strong corrosive, and the gas air-introduced machine 2 must use anti-corrosion air-introduced machine, such as can use material
For glass reinforced plastic or polypropylene, gas air-introduced machine is preferably glass reinforced plastic centrifugal blower.1 material of gas holder can be enamel or poly-
Tetrafluoroethene, gas holder are preferably enamel gas holder.
The first-stage condenser 3, secondary condenser 4, three-level condenser 5 can be graphite or carbon steel material, preferably graphite
Condenser.6 material of heater is high temperature cabonization graphite.
The condensate liquid receiving tank material is enamel, and for the liquid outlet of bottom by pipeline, connection enters water treatment agent
Device for absorbing tail gas system carries out cycling and reutilization to liquid is separated.6 gas vent of gas-liquid separator enters gas by compression
Then heated device enters HCl gas downstream catalyst preparation device to body surge tank.
The concrete operating principle of the present apparatus.
As shown in Figure 1, from water treatment agent hydroxy ethylene diphosphonic acid (HEDP) device for absorbing tail gas containing moisture and
The hydrogen chloride gas of acetic acid steam, into the hydrogen chloride gas holder 1 of the 50m3 enamel material in the present apparatus.Gas is slow by gas holder
Then punching provides power through gas air-introduced machine 2, is successively delivered to the water cooled removing of 240m3 level-one graphite circular block pore type condenser
Moisture in mixed gas, then respectively through 200m3 second level graphite circular block pore type condenser, 200m3 three-level graphite circular block pore type
The ice-cold acetic acid steam removed in mixed gas of condenser.Water-cooled process temperature range is 10~40 DEG C, the ice-cold processing temperature of two-stage
Spending range is respectively -5 DEG C~0, -15~-5 DEG C.
It is φ 1600 × 3000 that hydrogen chloride gas through three-level condensation process, which enters specification, and material is glass lined gas-liquid point
From device 6, the further separating-purifying hydrogen chloride gas of gas-liquid separation is carried out again, purification separation obtains content greater than 99.9%, aqueous
Amount is less than high-purity dry hydrogen chloride gas of 500ppm.The gas outlet at 6 top of gas-liquid separator enters gas after compressor compresses
Body surge tank is preheated to 50~100 DEG C through the high temperature cabonization graphite heater 6 that specification is 120m3, into hydrogen chloride gas downstream
Product synthesizer utilizes.
From first-stage condenser 3 condensation and separation of liquid, through bottom liquid outlet enter 2m3 enamel level-one condensate liquid receive
Tank 7；The liquid separated from secondary condenser 4, three-level condenser 5 and gas-liquid separator 6 enters 2m3 enamel B-grade condensation
Liquid receiving tank 9.Level-one condensate liquid receiving tank 8 is connected by pipeline with the top of B-grade condensation liquid receiving tank 9 and establishes connection, and
Pipeline between first-stage condenser 3 and secondary condenser 4 is connected, and gas-liquid equilibrium connection is established.
The liquid outlet of 9 bottom of level-one condensate liquid receiving tank 8 and B-grade condensation liquid receiving tank, by with valvular pipeline,
Connection enters HEDP acetate acid tail gas absorption plant and recycles for acetate acid tail gas, and the acetic acid of recycling is circularly used for the life of HEDP product
Produce raw material.
Claims (7)
1. a kind of purification device of water treatment agent by-product hydrogen chloride, it is characterised in that: include: gas air-introduced machine (2), condenser,
Condensate liquid receiving tank, gas-liquid separator, water treatment agent device for absorbing tail gas contain the hydrogen chloride gas of moisture, a small amount of acetic acid steam
Discharge pipe connect with gas air-introduced machine (2) by hydrogen chloride gas holder (1), gas air-introduced machine (2) exhaust outlet passes through pipe
Line is successively connect with first-stage condenser (3), secondary condenser (4), three-level condenser (5), three-level condenser (5) gas outlet and gas
Liquid/gas separator (6) connection, gas-liquid separator (6) gas vent are produced by compressor, heated device (7) and hydrogen chloride gas downstream
The connection of product synthesizer pipeline；First-stage condenser (3) liquid outlet is connect with level-one condensate liquid receiving tank (8), secondary condenser
(4), three-level condenser (5) liquid outlet is connect with B-grade condensation liquid receiving tank (9).
2. the purification device of water treatment agent by-product hydrogen chloride according to claim 1, it is characterised in that: the level-one condensate liquid
Receiving tank (8) and B-grade condensation liquid receiving tank (9) by pipeline connection, and simultaneously with first-stage condenser (3), secondary condenser
(4) pipeline is connected between, establishes vapor liquid equilibrium connection.
3. the purification device of water treatment agent by-product hydrogen chloride according to claim 1, it is characterised in that: the first-stage condenser
(3) cooling medium is cooling water, is connect with recirculating cooling water system；Secondary condenser (4), three-level condenser (5) respectively with ice
Machine establishes connection.
4. the purification device of water treatment agent by-product hydrogen chloride according to claim 1, it is characterised in that: the gas air-introduced machine
(2) polypropylene or glass reinforced plastic centrifugal blower are used.
5. the purification device of water treatment agent by-product hydrogen chloride according to claim 4, it is characterised in that: the gas air-introduced machine
(2) glass reinforced plastic centrifugal blower is used.
6. the purification device of water treatment agent by-product hydrogen chloride according to claim 1, it is characterised in that: condensate liquids at different levels receive
Pot bottom condensate outlet passes through with valvular pipeline, and access is inhaled for that will separate the water treatment agent tail gas that liquid recycles
Receiving apparatus.
7. the purification device of water treatment agent by-product hydrogen chloride according to claim 1, it is characterised in that: the gas-liquid separator
(6) bottom liquid outlet is connect with B-grade condensation liquid receiving tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821164849.2U CN208814656U (en) | 2018-07-23 | 2018-07-23 | A kind of purification device of water treatment agent by-product hydrogen chloride |
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| CN201821164849.2U CN208814656U (en) | 2018-07-23 | 2018-07-23 | A kind of purification device of water treatment agent by-product hydrogen chloride |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508092A (en) * | 2019-09-27 | 2019-11-29 | 唐山三友氯碱有限责任公司 | Tai gas of rectifying processing system and its automatic running pattern in production of vinyl chloride by calcium carbide method production technology |
| CN111943141A (en) * | 2020-09-02 | 2020-11-17 | 南通山剑防腐科技有限公司 | Hydrochloric acid analysis device with negative pressure dehydration function and analysis process |
-
2018
- 2018-07-23 CN CN201821164849.2U patent/CN208814656U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508092A (en) * | 2019-09-27 | 2019-11-29 | 唐山三友氯碱有限责任公司 | Tai gas of rectifying processing system and its automatic running pattern in production of vinyl chloride by calcium carbide method production technology |
| CN110508092B (en) * | 2019-09-27 | 2021-05-28 | 唐山三友氯碱有限责任公司 | Rectification tail gas treatment system in calcium carbide method chloroethylene production process and automatic operation mode thereof |
| CN111943141A (en) * | 2020-09-02 | 2020-11-17 | 南通山剑防腐科技有限公司 | Hydrochloric acid analysis device with negative pressure dehydration function and analysis process |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Patentee after: Shandong Taihe Technology Co.,Ltd. Address before: No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Patentee before: SHANDONG TAIHE WATER TREATMENT TECHNOLOGIES Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |