CN207108886U - A kind of benzene recovery device for steam in metaformaldehyde production process - Google Patents
A kind of benzene recovery device for steam in metaformaldehyde production process Download PDFInfo
- Publication number
- CN207108886U CN207108886U CN201721067894.1U CN201721067894U CN207108886U CN 207108886 U CN207108886 U CN 207108886U CN 201721067894 U CN201721067894 U CN 201721067894U CN 207108886 U CN207108886 U CN 207108886U
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- benzene
- vapour
- collection box
- pipeline
- water
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Abstract
The utility model discloses the benzene recovery device for steam in a kind of metaformaldehyde production process, material storage tank including the vapour containing benzene, the material storage groove top portion of the vapour containing benzene connects with benzene vapour collection box, benzene vapour collection box is divided into by upper interlayer and lower interlayer, is middle, be lower three layers, the material storage groove top portion of the vapour containing benzene connects with the intermediate layer of benzene vapour collection box, and desalted water storage tank connects with the intermediate layer of benzene vapour collection box；The upper strata of benzene vapour collection box connects with waste gas recovering device, and the lower floor of benzene vapour collection box connects with the bottom of benzene water separating tank, and the bottom of benzene water separating tank connects with waste water reclaiming device, and the top of benzene water separating tank connects with the bottom of the material storage tank of the vapour containing benzene.The utility model reduces the leakage of live benzene vapour, and the personal safety and Environmental Health to employee are significant.Before the utility model is not used, the free gas that can smell benzene of live employee's indirect, after coming into operation, live benzene taste is controlled effectively.
Description
Technical field
The utility model belongs to technical field of chemical, and in particular to the benzene vapour in a kind of metaformaldehyde production process returns
Receiving apparatus.
Background technology
Benzene is as extractant important in process of producing polyformaldehyde, and the characteristics of due to its effumability, unit consumption occupies height always
Under not；Along with the poisonous and hazardous physical characteristic of benzene, the personal safety to employee constitutes very big threat, and benzene vapour returns again
Receive using extremely urgent.
Utility model content
The utility model is in view of the shortcomings of the prior art, there is provided the benzene vapour recovery dress in a kind of metaformaldehyde production process
Put, not only products benzene unit consumption substantially reduces the metaformaldehyde produced using the device, and the personal safety to employee and environment
Health is significant.
The purpose of this utility model is realized in the following manner：
A kind of benzene recovery device for steam in metaformaldehyde production process, include the material storage tank of the vapour containing benzene, the thing of the vapour containing benzene
Material inlet is provided with the middle part of material storage tank, the material storage groove top portion of the vapour containing benzene is connected by benzene vapour steam inlet pipe road and benzene vapour collection box
Logical, benzene vapour collection box is divided into by upper interlayer and lower interlayer, is middle, be lower three layers, and upper strata is to arrange layer outside fixed gas, and intermediate layer is
Spraying layer arranges layer outside with vapour layer, lower floor is entered for benzene water mixed liquid, the material storage groove top portion of the vapour containing benzene and the centre of benzene vapour collection box
Layer connection, desalted water storage tank are connected by desalted water inlet channel with the intermediate layer of benzene vapour collection box, desalted water inlet channel position
The end in the intermediate layer of benzene vapour collection box is provided with spray head, intermediate layer and the upper strata of benzene vapour collection box are connected by the first pipeline
Logical, the intermediate layer of benzene vapour collection box is connected with lower floor by second pipe, and the top of the first pipeline is concordant with upper interlayer, the second pipe
The top in road is higher than lower interlayer, and the bottom of the first pipeline is less than the top of second pipe；The upper strata of benzene vapour collection box passes through useless
The outer discharge pipe of gas connects with waste gas recovering device, and the lower floor of benzene vapour collection box passes through under benzene Water Sproading pipeline and benzene water separating tank
Portion is connected, and the bottom of benzene water separating tank is connected by Sewage treatment pipeline with waste water reclaiming device, and the top of benzene water separating tank leads to
The bottom that benzene recovery channel is crossed with the material storage tank of the vapour containing benzene connects, and the material storage tank of the vapour containing benzene also connects with benzene groove；The pipe
Valve is provided with road.
The bottom of the second pipe extends to the bottom of the lower floor of benzene vapour collection box.
Desalination water ga(u)ge is provided with the desalted water inlet channel, liquid phenenyl flow is provided with benzene recovery channel
Meter.
The Sewage treatment pipeline is connected with benzene Water Sproading pipeline by communicating pipe, and valve is provided with communicating pipe.
The upper and lower of the benzene vapour collection box are connected by benzene vapour collection box balance pipe.
Heat tracing copper pipe is provided with outside the desalted water inlet channel and benzene recovery channel, is provided with outside heat tracing copper pipe
Heat-preservation cotton.
Heat tracing copper pipe is provided with outside the desalination water ga(u)ge and liquid phenenyl flowmeter, is provided with outside heat tracing copper pipe
Heat-preservation cotton.
Benzene vapour steam inlet pipe road caliber is DN40-50, and desalted water inlet channel caliber is DN20-30, the first pipeline and
Second pipe caliber is DN50-80, and benzene Water Sproading pipe diameter is DN20-30, and Sewage treatment pipe diameter is DN50-80, benzene
Recovery channel caliber is DN20-30, and caliber unit is mm.
Showering guilding valve is provided with the desalted water inlet channel, benzene recovery channel and Sewage treatment pipeline.
Relative to prior art, the beneficial effects of the utility model are：
1. the utility model greatly reduces the cost of raw material.In terms of data comparison, unused the utility model it
Before, 1 ton of polyformaldehyde benzene unit consumption of production is at 8 kilograms or so, and after coming into operation, benzene unit consumption is down to 4 kilograms.Benzene consumption reduces by 50% than before.Press
Produce 40000 tons of polyformaldehyde per year to calculate, save about 80 tons of benzene year, 7100 yuan of benzene cost per ton, save the cost of raw material about 56.8 ten thousand in year
Member.
2. the utility model reduces the leakage of live benzene vapour, the personal safety and Environmental Health to employee are significant.
Before the utility model is not used, the free gas that can smell benzene of live employee's indirect, after coming into operation, live benzene taste
It is controlled effectively.
3. the characteristic that benzene vapour collection box dissolves according to benzene in water in the utility model, effectively benzene vapour can be inhaled
Receive, and the row's of taking on-condensible gas, the lower resultant effect for receiving benzene water mixed liquid.
4. three layers of the utility model benzene vapour collection box upper, middle and lower sets blowdown to lead leaching respectively, after facilitating longtime running, benzene vapour
The blowdown and cleaning of each layer of collection box.
5. the secondary recovery that the utility model realizes benzene vapour utilizes, and the raw material saved, and can is not by coagulating in system
Gas is discharged, promotion system stable conditions.
6. the process route designed by the utility model device, the equipment of use is easily purchased, and price is low；And run
Continuous-stable, easy to operate, automaticity is high, is easy to implement industrial applications.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of benzene vapour collection box.
Wherein, 1 be the vapour containing benzene material storage tank；2 be benzene vapour collection box；3 be spray head；4 be desalted water storage tank；5 be de-
Brine flowmeter；6 be waste gas recovering device；7 be benzene water separating tank；8 be liquid phenenyl flowmeter；9 be waste water reclaiming device；10 are
Benzene vapour collection box balance pipe；11 be benzene Water Sproading pipeline；12 be communicating pipe；13 be Sewage treatment pipeline；14 be benzene recovery channel；
15 be material inlet；16 be upper interlayer；17 be lower interlayer；18 be the first pipeline；19 be second pipe.
Embodiment
As shown in accompanying drawing 1-2, the benzene recovery device for steam in a kind of metaformaldehyde production process, include the material storage of the vapour containing benzene
Groove 1, the middle part of the material storage tank 1 of the vapour containing benzene are provided with material inlet 15, and vapour is entered in the top of material storage tank 1 of the vapour containing benzene by benzene vapour
Pipeline is connected with benzene vapour collection box 2, and benzene vapour collection box 2 is divided for upper, middle, lower three layers by upper interlayer 16 and lower interlayer 17, on
To arrange layer outside fixed gas, intermediate layer is spraying layer and enters vapour layer layer, and lower floor is to arrange layer outside benzene water mixed liquid, the material storage of the vapour containing benzene
The top of groove 1 connects with the intermediate layer of benzene vapour collection box 2, and desalted water storage tank 4 passes through desalted water inlet channel and benzene vapour collection box 2
Intermediate layer connects, and the end that desalted water inlet channel is located at the intermediate layer of benzene vapour collection box 2 is provided with spray head 3, the recovery of benzene vapour
The intermediate layer of case 2 is connected with upper strata by the first pipeline 18, and the intermediate layer of benzene vapour collection box 2 is connected with lower floor by second pipe 19
Logical, the top of the first pipeline 18 is concordant with upper interlayer 16, and the top of second pipe 19 is higher than lower interlayer 17, and the first pipeline 18
Bottom is less than the top of second pipe 19；The upper strata of benzene vapour collection box 2 is connected by discharge pipe outside waste gas and waste gas recovering device 6
Logical, the lower floor of benzene vapour collection box 2 is connected by benzene Water Sproading pipeline 11 with the bottom of benzene water separating tank 7, the bottom of benzene water separating tank 7
End is connected by Sewage treatment pipeline 13 with waste water reclaiming device 9, and the top of benzene water separating tank 7 is by benzene recovery channel 14 with containing
The bottom connection of the material storage tank 1 of benzene vapour, the material storage tank 1 of the vapour containing benzene also connect with benzene groove；Valve is provided with the pipeline
Door, is installed on outside the connecting pipe between device and is provided with heat-preservation cotton, for being incubated.
The top of second pipe 19 is higher than lower interlayer 17, and the bottom of the first pipeline 18 is less than the top of second pipe 19,
So the liquid level of the liquid in the intermediate layer of benzene vapour collection box 2 only has the top higher than second pipe 19, can just be flowed along second pipe 19
To the lower floor of benzene vapour collection box 2, and the bottom of the first pipeline 18 is less than the top of second pipe 19, the bottom of such first pipeline 18
It can be located at below liquid level, play a part of fluid-tight, the fixed gas in benzene vapour can drain into waste gas recovering device 6 along the first pipeline 18,
It is negative pressure in waste gas recovering device 6, is more beneficial for the fixed gas discharge on the upper strata of benzene vapour collection box 2.
The bottom of second pipe 19 extends to the bottom of the lower floor of benzene vapour collection box 2, and such benzene aqueous mixtures can be along
Second pipe 19 reaches the lower floor of benzene vapour collection box 2, situation about will not splash.
Desalination water ga(u)ge 5 is provided with desalted water inlet channel, liquid phenenyl flowmeter is provided with benzene recovery channel 14
8, for measuring the flow of desalted water and liquid phenenyl.
Sewage treatment pipeline 13 is connected with benzene Water Sproading pipeline 11 by communicating pipe 12, and valve is provided with communicating pipe, this
Sample is closed on benzene Water Sproading pipeline 11 close to the valve of benzene water separating tank 7 when benzene water separating tank 7 breaks down, opens connection
Valve on pipe 12, the benzene aqueous mixtures that Ben Qi collection boxes lower floor comes can be entered in waste water reclaiming device 9 by drainage, ensure that benzene vapour returns
Receiving apparatus can continue to run with when benzene water separating tank breaks down.
The upper and lower of benzene vapour collection box 2 are connected by benzene vapour collection box balance pipe 10, can be by under benzene vapour collection box 2
The gas discharge of layer, is easy to liquid to enter lower floor from intermediate layer.
Heat tracing copper pipe is provided with outside desalted water inlet channel and benzene recovery channel 14, guarantor is provided with outside heat tracing copper pipe
Wen Mian, phenomena such as preventing the liquid in pipeline from crystallizing, influence the operation of device.
Heat tracing copper pipe is provided with outside desalination water ga(u)ge 5 and liquid phenenyl flowmeter 8, guarantor is provided with outside heat tracing copper pipe
Wen Mian, phenomena such as liquid for preventing from flowing through in flowmeter crystallizes, influence the operation of flowmeter.
Punching has 0.15Mpa vapours in heat tracing copper pipe.
Benzene vapour steam inlet pipe road caliber is DN40-50, and desalted water inlet channel caliber is DN20-30, the first pipeline 18 and
The caliber of two pipeline 19 is DN50-80, and the caliber of benzene Water Sproading pipeline 11 is DN20-30, and the caliber of Sewage treatment pipeline 13 is DN50-
80, the caliber of benzene recovery channel 14 is DN20-30, and caliber unit is mm.
Showering guilding valve is provided with desalted water inlet channel, benzene recovery channel 14 and Sewage treatment pipeline 13, for stopping production
When empty pipeline in liquid.
The course of work of the present utility model is as follows：Benzene is used to extract metaformaldehyde, obtains the mixture of benzene and metaformaldehyde
Afterwards, benzene and metaformaldehyde are separated by rectifying column, the restructuring of tower reactor is divided into pure metaformaldehyde, in the light component of tower top
Including most benzene and least a portion of water, metaformaldehyde, after condenser condenses, vapour containing benzene is entered by material inlet 15
Material storage tank 1 in, gas phase enters the intermediate layer of benzene vapour collection box 2 by benzene vapour steam inlet pipe road, desalted water in desalted water storage tank 4
Spray head 3 is reached by desalted water inlet channel, sprayed by spray head 3, water-soluble material such as benzene in benzene vapour
Water can be dissolved in, forms benzene aqueous mixtures, benzene aqueous mixtures flow to the lower floor of benzene vapour collection box 2 along second pipe 19, when benzene vapour returns
When receiving the liquid level arrival certain altitude in the lower floor of case 2, benzene Water Sproading pipeline 11 can be entered, and enter along benzene Water Sproading pipeline 11
Benzene water separating tank 7, benzene aqueous mixtures are layered in benzene water separating tank 7, and benzene passes through waste water in upper strata, water in lower floor, the water of lower floor
Recovery channel 13 enters waste water reclaiming device 9, is recycled；After liquid level reaches top in benzene water separating tank 7, the benzene on upper strata
Enter the material storage tank 1 of the vapour containing benzene by benzene recovery channel 14, benzene liquid enters benzene groove time along pipeline in the material storage tank 1 of the vapour containing benzene
Receive and utilize；Fixed gas caused by the intermediate layer of benzene vapour collection box 2 enters the upper strata of benzene vapour collection box 2 along the first pipeline 18, and along useless
The outer discharge pipe of gas enters waste gas recovering device 6.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (9)
- A kind of 1. benzene recovery device for steam in metaformaldehyde production process, it is characterised in that：Material storage tank including the vapour containing benzene （1）, the material storage tank of the vapour containing benzene（1）Middle part be provided with material inlet（15）, the material storage tank of the vapour containing benzene（1）Top passes through benzene Vapour steam inlet pipe road and benzene vapour collection box（2）Connection, benzene vapour collection box（2）Pass through upper interlayer（16）With lower interlayer（17）Be divided into, Middle, lower three layers, upper strata is that layer is arranged outside fixed gas, and intermediate layer is spraying layer and enters vapour layer, and lower floor is to arrange layer outside benzene water mixed liquid, The material storage tank of the vapour containing benzene（1）Top and benzene vapour collection box（2）Intermediate layer connection, desalted water storage tank（4）Entered by desalted water Waterpipe and benzene vapour collection box（2）Intermediate layer connection, desalted water inlet channel is located at benzene vapour collection box（2）Intermediate layer end End is provided with spray head（3）, benzene vapour collection box（2）Intermediate layer and upper strata pass through the first pipeline（18）Connection, benzene vapour collection box （2）Intermediate layer and lower floor pass through second pipe（19）Connection, the first pipeline（18）Top and upper interlayer（16）Concordantly, second Pipeline（19）Top be higher than lower interlayer（17）, and the first pipeline（18）Bottom be less than second pipe（19）Top；Benzene vapour Collection box（2）Upper strata pass through discharge pipe outside waste gas and waste gas recovering device（6）Connection, benzene vapour collection box（2）Lower floor pass through Benzene Water Sproading pipeline（11）With benzene water separating tank（7）Bottom connection, benzene water separating tank（7）Bottom pass through Sewage treatment pipeline （13）With waste water reclaiming device（9）Connection, benzene water separating tank（7）Top pass through benzene recovery channel（14）With the material of the vapour containing benzene Storage tank（1）Bottom connection, the material storage tank of the vapour containing benzene（1）Also connected with benzene groove；Valve is provided with the pipeline.
- 2. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：Described second Pipeline（19）Bottom extend to benzene vapour collection box（2）Lower floor bottom.
- 3. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The desalination Desalination water ga(u)ge is provided with water inlet channel（5）, benzene recovery channel（14）On be provided with liquid phenenyl flowmeter（8）.
- 4. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The waste water Recovery channel（13）With benzene Water Sproading pipeline（11）Pass through communicating pipe（12）Connection, valve is provided with communicating pipe.
- 5. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The benzene vapour Collection box（2）The upper and lower pass through benzene vapour collection box balance pipe（10）Connection.
- 6. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The desalination Water inlet channel and benzene recovery channel（14）Outside is provided with heat tracing copper pipe, and heat-preservation cotton is provided with outside heat tracing copper pipe.
- 7. the benzene recovery device for steam in metaformaldehyde production process according to claim 3, it is characterised in that：The desalination Water ga(u)ge（5）With liquid phenenyl flowmeter（8）Outside is provided with heat tracing copper pipe, and heat-preservation cotton is provided with outside heat tracing copper pipe.
- 8. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The benzene vapour Steam inlet pipe road caliber is DN40-50, and desalted water inlet channel caliber is DN20-30, the first pipeline（18）And second pipe（19） Caliber is DN50-80, benzene Water Sproading pipeline（11）Caliber is DN20-30, Sewage treatment pipeline（13）Caliber is DN50-80, benzene Recovery channel（14）Caliber is DN20-30.
- 9. the benzene recovery device for steam in metaformaldehyde production process according to claim 1, it is characterised in that：The desalination Water inlet channel, benzene recovery channel（14）With Sewage treatment pipeline（13）On be provided with showering guilding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067894.1U CN207108886U (en) | 2017-08-24 | 2017-08-24 | A kind of benzene recovery device for steam in metaformaldehyde production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067894.1U CN207108886U (en) | 2017-08-24 | 2017-08-24 | A kind of benzene recovery device for steam in metaformaldehyde production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207108886U true CN207108886U (en) | 2018-03-16 |
Family
ID=61577402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721067894.1U Withdrawn - After Issue CN207108886U (en) | 2017-08-24 | 2017-08-24 | A kind of benzene recovery device for steam in metaformaldehyde production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207108886U (en) |
-
2017
- 2017-08-24 CN CN201721067894.1U patent/CN207108886U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180316 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180316 Effective date of abandoning: 20230616 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |