CN206535389U - A kind of processing system of chlorohydrination method tail gas - Google Patents
A kind of processing system of chlorohydrination method tail gas Download PDFInfo
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- CN206535389U CN206535389U CN201720132518.XU CN201720132518U CN206535389U CN 206535389 U CN206535389 U CN 206535389U CN 201720132518 U CN201720132518 U CN 201720132518U CN 206535389 U CN206535389 U CN 206535389U
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- tail gas
- water sealed
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Abstract
The utility model is related to production of chlor-alkali chemical industry field, disclose a kind of processing system of chlorohydrination method tail gas, include scrubbing tower, circulating pump, surge tank, one-level safe water sealed cans, exhaust fan, nitrogen pipeline, secondary safety water sealed tank and exhaust combustion torch, pass through technological improvement, introduce the explosion limit that inert gas changes fuel gas air, improve the security of system operation, surge tank, one-level safe water sealed cans and secondary safety water sealed tank are set up, can be used for reducing the moisture of gas phase and discharge pressure in tail gas vigorous reaction；The processing system of the application chlorohydrination method tail gas, modified technique is simple, and the requirement to production equipment is relatively low, can be widely suitable for the technological improvement of existing production line, safely handles chlorohydrination tail gas, realizes chlorohydrination tail gas zero-emission.
Description
Technical field
The utility model is related to production of chlor-alkali chemical industry field, particularly a kind of processing system of chlorohydrination method tail gas.
Background technology
At present, the industrialized preparing process of expoxy propane mainly has chlorohydrination method and conjugated oxidation, the production capacity of two methods
50% of aggregated capacity or so is respectively accounted for, wherein chlorohydrination method is the method for earliest industrialized production expoxy propane, in the world chlorohydrination
The t of the production capacity of method expoxy propane about 4,000,000.There are family more than 20, production capacity 600,000 in the producing propylene oxide by chlorohydrination method manufacturing enterprise of China
T/a, accounts for the 70% of national aggregated capacity.Its advantage of chlorohydrination method is technical maturity, simple to operate, and the requirement to raw material and equipment is not
Height, is invested small.
Mainly contained in tail gas produced by producing propylene oxide by chlorohydrination method about 20%~30% propylene, the third of 2%~5%
The organic gas such as alkane, its VOC（NMHC）Value, more than discharge standard, need to be handled up to up to ten thousand.Current processing method master
There is catalytic oxidation, aoxidizing deoxidation composite catalyzing using CO is in the popularization stage, and actual industrialization uses less, chemical treatment
Complex procedures, and propylene, vapor etc. can influence catalyst activity, reduce catalyst usage cycles.
The content of the invention
The purpose of this utility model is to provide a kind of processing system of chlorohydrination method tail gas, to meet chlorohydrination tail gas
Processing, it is to avoid tail gas influence production；Using the method for burning, handling process is simple.
To realize above-mentioned technical purpose and the technique effect, the utility model discloses a kind of chlorohydrination method tail gas
Processing system, include scrubbing tower, circulating pump, surge tank, one-level safe water sealed cans, exhaust fan, nitrogen pipeline, two grades peace
Full water sealed tank and exhaust combustion torch, scrubbing tower side upper end are connected with washing liquid lines, and side lower end is connected with exhaust pipe,
Wash tower bottoms are connected by conveyance conduit with circulating pump, and circulating pump leads to conveyance conduit and is connected with scrubbing tower, form circulation loop,
The top of scrubbing tower is connected by conveyance conduit with surge tank, and surge tank side sets and is connected with one-level safe water sealed cans, is buffered
The top of tank is connected by conveyance conduit with exhaust fan, and exhaust fan is connected by conveyance conduit with secondary safety water sealed tank,
Nitrogen pipeline is connected on the conveyance conduit that surge tank is connected with exhaust fan and secondary safety water sealed tank, secondary safety water
Connecting pipe is provided with sealed cans with exhaust combustion torch to be connected.
It is preferred that, the flow passage components of the pump housing and blower fan in circulating pump and exhaust fan are titanium material.
Wherein, spark arrester and check-valves are installed on the conveyance conduit that exhaust fan is connected with secondary safety water sealed tank.
Wherein, the side of one-level safe water sealed cans and secondary safety water sealed tank is provided with magnetic double level gauge.
Wherein, the pressure of surge tank is by exhaust fan VFC, and the oxygen content of surge tank is real by in-line analyzer
When monitoring and controlling.
The utility model has the advantages that：
1. the utility model is by technological improvement, the explosion limit that inert gas changes fuel gas-air is introduced, is improved
The security of system operation, set up surge tank, one-level safe water sealed cans and secondary safety water sealed tank, can be used for reducing gas
The moisture of phase and discharge pressure in tail gas vigorous reaction.
2. the processing system of the application chlorohydrination method tail gas, modified technique is simple, and the requirement to production equipment is relatively low, can be with
The technological improvement of existing production line is widely suitable for, chlorohydrination tail gas is safely handled, realizes chlorohydrination tail gas zero-emission.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Critical piece symbol description:
1：Scrubbing tower, 2：Circulating pump, 3：Surge tank, 4：One-level safe water sealed cans, 5：Exhaust fan, 6：Nitrogen pipeline, 7：
Spark arrester, 8：Check-valves, 9：Secondary safety water sealed tank, 10：Exhaust combustion torch, 11：Magnetic double level gauge, 12：On-line analysis
Instrument.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.
As shown in figure 1, the utility model discloses a kind of processing system of chlorohydrination method tail gas, including scrubbing tower 1, following
Ring pump 2, surge tank 3, one-level safe water sealed cans 4, exhaust fan 5, nitrogen pipeline 6, secondary safety water sealed tank 9 and exhaust combustion fire
Torch 10, the side upper end of scrubbing tower 1 is connected with washing liquid lines, and side lower end is connected with exhaust pipe, and the bottom of scrubbing tower 1 passes through defeated
Send pipeline to be connected with circulating pump 2, circulating pump 2 leads to conveyance conduit and is connected with scrubbing tower 1, form circulation loop, the top of scrubbing tower 1
It is connected by conveyance conduit with surge tank 3, the side of surge tank 3 sets and is connected with one-level safe water sealed cans 4, the top of surge tank 3
It is connected by conveyance conduit with exhaust fan 5, exhaust fan 5 is connected by conveyance conduit with secondary safety water sealed tank 9, tail gas wind
Spark arrester 7 and check-valves 8 are installed, the connection of nitrogen pipeline 6 is set on the conveyance conduit that machine 5 is connected with secondary safety water sealed tank 9
In on the conveyance conduit that surge tank 3 is connected with exhaust fan 5 and secondary safety water sealed tank 9, it is provided with secondary safety water sealed tank 9
Connecting pipe is connected with exhaust combustion torch 10, and the pressure of surge tank 3 is by the VFC of exhaust fan 5, and the oxygen of surge tank 3 contains
Amount passes through the real-time inspection and control of in-line analyzer 12.
Wherein, circulating pump 2 and the pump housing and the flow passage components of blower fan in exhaust fan 5 are titanium material, one-level safe water
The side of sealed cans 4 and secondary safety water sealed tank 9 is provided with magnetic double level gauge 11.
The processing system of the application chlorohydrination method tail gas, changes the blast of fuel gas-air by introducing inert gas
The limit, improves the security of system operation, set up surge tank 3, one-level safe water sealed cans 4 and secondary safety water sealed tank 9, can
For reducing the moisture of gas phase and discharging pressure in tail gas vigorous reaction.Modified technique is simple, and production equipment is wanted
Ask relatively low, the technological improvement of existing production line can be widely suitable for, safely handle chlorohydrination tail gas, realize chlorohydrination tail
Gas zero.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.
Claims (5)
1. a kind of processing system of chlorohydrination method tail gas, it is characterised in that include scrubbing tower, circulating pump, surge tank, one-level peace
Full water sealed tank, exhaust fan, nitrogen pipeline, secondary safety water sealed tank and exhaust combustion torch, described scrubbing tower side upper end
It is connected with washing liquid lines, side lower end is connected with exhaust pipe, and wash tower bottoms are connected by conveyance conduit with circulating pump, is followed
Ring pump leads to conveyance conduit and is connected with scrubbing tower, forms circulation loop, and the top of scrubbing tower is connected by conveyance conduit with surge tank,
Described surge tank side sets and is connected with one-level safe water sealed cans, and the top of surge tank passes through conveyance conduit and exhaust fan phase
Even, described exhaust fan is connected by conveyance conduit with secondary safety water sealed tank, and described nitrogen pipeline is connected in slow
Rush on the conveyance conduit that tank is connected with exhaust fan and secondary safety water sealed tank, the company of being provided with described secondary safety water sealed tank
Adapter road is connected with exhaust combustion torch.
2. a kind of processing system of chlorohydrination method tail gas as claimed in claim 1, it is characterised in that：Described circulating pump and tail
The flow passage components of the pump housing and blower fan in gas blower fan are titanium material.
3. a kind of processing system of chlorohydrination method tail gas as claimed in claim 1 or 2, it is characterised in that：Described tail gas wind
Spark arrester and check-valves are installed on the conveyance conduit that machine is connected with secondary safety water sealed tank.
4. a kind of processing system of chlorohydrination method tail gas as claimed in claim 1, it is characterised in that：Described one-level safe water
The side of sealed cans and secondary safety water sealed tank is provided with magnetic double level gauge.
5. a kind of processing system of chlorohydrination method tail gas as claimed in claim 1, it is characterised in that：The pressure of described surge tank
Power passes through in-line analyzer real-time inspection and control by exhaust fan VFC, the oxygen content of surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132518.XU CN206535389U (en) | 2017-02-14 | 2017-02-14 | A kind of processing system of chlorohydrination method tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132518.XU CN206535389U (en) | 2017-02-14 | 2017-02-14 | A kind of processing system of chlorohydrination method tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206535389U true CN206535389U (en) | 2017-10-03 |
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| CN201720132518.XU Active CN206535389U (en) | 2017-02-14 | 2017-02-14 | A kind of processing system of chlorohydrination method tail gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899402A (en) * | 2017-11-28 | 2018-04-13 | 滨化集团股份有限公司 | Propylene oxide by chlorohydrination device exhaust processing method |
| CN107913590A (en) * | 2017-11-28 | 2018-04-17 | 滨化集团股份有限公司 | Propylene oxide by chlorohydrination device exhaust processing unit |
| CN108514809A (en) * | 2018-05-08 | 2018-09-11 | 江苏智道工程技术有限公司 | A kind of coking crude benzene deep processing treating tail gas device and method |
| CN108626733A (en) * | 2018-05-07 | 2018-10-09 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs waste-gas burning systems and its process |
| CN109631056A (en) * | 2019-01-31 | 2019-04-16 | 滨化集团股份有限公司 | A kind of technique of propylene oxide chlorohydrination tail gas and trichloro ethylene house exhaust combined governance |
-
2017
- 2017-02-14 CN CN201720132518.XU patent/CN206535389U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899402A (en) * | 2017-11-28 | 2018-04-13 | 滨化集团股份有限公司 | Propylene oxide by chlorohydrination device exhaust processing method |
| CN107913590A (en) * | 2017-11-28 | 2018-04-17 | 滨化集团股份有限公司 | Propylene oxide by chlorohydrination device exhaust processing unit |
| CN107899402B (en) * | 2017-11-28 | 2021-04-06 | 滨化集团股份有限公司 | Tail gas treatment method for chlorohydrination method propylene oxide device |
| CN107913590B (en) * | 2017-11-28 | 2021-06-01 | 滨化集团股份有限公司 | Tail gas treatment device of chlorohydrination method propylene epoxide device |
| CN108626733A (en) * | 2018-05-07 | 2018-10-09 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs waste-gas burning systems and its process |
| CN108514809A (en) * | 2018-05-08 | 2018-09-11 | 江苏智道工程技术有限公司 | A kind of coking crude benzene deep processing treating tail gas device and method |
| CN109631056A (en) * | 2019-01-31 | 2019-04-16 | 滨化集团股份有限公司 | A kind of technique of propylene oxide chlorohydrination tail gas and trichloro ethylene house exhaust combined governance |
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