CN206008221U - A kind of absorption plant for producing acrylonitrile - Google Patents
A kind of absorption plant for producing acrylonitrile Download PDFInfo
- Publication number
- CN206008221U CN206008221U CN201620709805.8U CN201620709805U CN206008221U CN 206008221 U CN206008221 U CN 206008221U CN 201620709805 U CN201620709805 U CN 201620709805U CN 206008221 U CN206008221 U CN 206008221U
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- China
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- reaction tower
- adsorbent bed
- bed reaction
- finished filter
- relief valve
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Abstract
The utility model discloses a kind of absorption plant for producing acrylonitrile, which includes adsorbent bed reaction tower, activated alumina adsorbents are provided with adsorbent bed reaction tower, the inner chamber of adsorbent bed reaction tower is divided into two chambers to contain by dividing plate, the acrylonitrile raw material for having high peroxide is entered from the bottom of adsorbent bed reaction tower, reaction tower outlet from its upper end is expelled to finished filter, the products export of finished filter is connected to product storage tank, waste gate is provided with below finished filter, and waste gate is connected with tank field house steward；The upper end of adsorbent bed reaction tower is provided with the first relief valve, the outlet of the first relief valve is connected to the inner chamber of surge tank, the upper end of surge tank is provided with the second relief valve, and the inner chamber of surge tank is connected to the import of finished filter, and the discharge port of the second relief valve is connected to the tank field house steward.The absorption plant of production acrylonitrile of the present utility model can be improved production efficiency and yield, and reduce waste material excretion.
Description
Technical field
This utility model is related to technical field of chemical, more particularly to a kind of absorption plant for producing acrylonitrile.
Background technology
Acrylonitrile is a kind of colourless organic liquid, is the main of synthetic fibers, synthetic rubber, synthetic resin and acrylamide
Raw material.With the diversification that acrylonitrile downstream product is processed, also there are different requirements to peroxide in vinyl cyanide product content,
And the exceeded problem of peroxide annoyings enterprise's production of acrylonitrile industry often, and the production to downstream product brings seriously
Impact, directly influence the sales and marketing competitiveness of acrylonitrile product.For this purpose, acrylonitrile plant is according to practical production experience pair
Device has carried out a series of adjustment, and such as Chinese patent literature CN203625268U discloses peroxidating in a kind of acrylonitrile product
The outlet of adsorbent bed reactor upper end relief valve is connected directly to tank field house steward by the absorption plant of thing, its, and relief valve because
Material for the excessive discharge of overpressure is through the semi-finished product of alumina adsorption, if being immediately discharged to tank field house steward, can not only make
Waste, waste disposal added cost into raw material, while be greatly reduced production efficiency and yield.
Utility model content
For this purpose, the technical problems to be solved in the utility model is to overcome the existing absorption for removing peroxide in acrylonitrile
Device above shortcomings, and then the suction that a kind of waste material discharges production acrylonitrile that is less and can improving product yield is provided
Receiving apparatus.
For achieving the above object, this utility model is employed the following technical solutions：
A kind of absorption plant for producing acrylonitrile, it include adsorbent bed reaction tower, are provided with the adsorbent bed reaction tower
Activated alumina adsorbents, the activated alumina adsorbents are supported in the adsorbent bed reaction tower by stationary grizzly, institute
The inner chamber for stating adsorbent bed reaction tower is vertically divided into two independent chambers, the acrylonitrile containing high peroxide by dividing plate
Raw material respectively enters two chambers from the bottom of the adsorbent bed reaction tower, and the upper end of two chambers is respectively arranged with
Reaction tower outlet, the reaction tower outlet are connected to finished filter by pipeline, and the product of the finished filter goes out
Mouth is connected to product storage tank, is provided with waste gate below the finished filter, and the waste gate is total with tank field
Pipe connects；Two chamber upper ends are respectively arranged with the first relief valve, and the outlet of first relief valve is connected to surge tank
Inner chamber, the upper end of the surge tank is provided with the second relief valve, the excretion of first relief valve and second relief valve
Pressure is identical, and the inner chamber of the surge tank is connected to the import of the finished filter by pipeline, second relief valve
Discharge port is connected to the tank field house steward by pipeline.
Preferably, the finished filter is provided with two, finished filter and standby finished filter based on difference, institute
State main finished filter to be arranged in parallel with the standby finished filter.
Preferably, several temperature sensors are arranged at intervals with along tower wall in the adsorbent bed reaction tower.
Preferably, it is provided with the outside of the adsorbent bed reaction tower for the cooling dress to adsorbent bed reaction tower cooling
Put, the heat sink is associated with the temperature sensor.
Preferably, the heat sink is cold water spray device, and the sprinkler head of the cold water spray device is arranged on described
The surface and/or side of adsorbent bed reaction tower.
The beneficial effects of the utility model：
The absorption plant of production acrylonitrile of the present utility model is arranged by the pressure release of two-stage pressure relief valve, can be to greatest extent
Ground is delivered to the gas after being adsorbed by activated alumina adsorbents in finished filter and product storage tank, it is to avoid tank field house steward
In be discharged into excessive finished product, therefore, it is possible to greatly improve production efficiency and yield.
Description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below in conjunction with the accompanying drawings, this utility model is made
Further details of explanation, wherein：
Fig. 1 is the structural representation of the absorption plant of production acrylonitrile of the present utility model.
In figure, reference is expressed as：
1- adsorbent bed reaction towers；2- activated alumina adsorbents；3- reaction tower outlets；4- finished filters；40- waste materials
Outlet；The main finished filters of 41-；The standby finished filters of 42-；5- product storage tanks；6- tank fields house steward；The first relief valve of 7-；
8- surge tanks；The second relief valve of 9-；10- discharge ports；11- temperature sensors；12- heat sinks；13- sprinkler heads；Dividing plate 14.
Specific embodiment
Referring to Fig. 1, a kind of absorption plant for producing acrylonitrile, it include adsorbent bed reaction tower 1, the adsorbent bed reaction tower
Activated alumina adsorbents 2 are provided with 1, the activated alumina adsorbents 2 are supported on the adsorbent bed by stationary grizzly
In reaction tower 1, the inner chamber of the adsorbent bed reaction tower 1 is vertically divided into two independent chambers by dividing plate 14, described every
The inner chamber of the adsorbent bed reaction tower 1 is divided into equal two parts of size, shape, the acrylonitrile containing high peroxide by plate 14
Raw material respectively enters two chambers, the upper end of two chambers by pipeline from the bottom of the adsorbent bed reaction tower 1
Reaction tower outlet 3 is respectively arranged with, the reaction tower outlet 3 is connected to finished filter 4, the finished product mistake by pipeline
The products export of filter 4 is connected to product storage tank 5, and the lower section of the finished filter 4 is provided with waste gate 40, described useless
Material outlet 40 is connected with tank field house steward 6；Two chamber upper ends are respectively arranged with the first relief valve 7, first safety
The outlet of valve 7 is connected to the inner chamber of surge tank 8, and the upper end of the surge tank 8 is provided with the second relief valve 9, first safety
Valve 7 is identical with the drainage pressure of second relief valve 9, and the inner chamber of the surge tank 8 is connected to the finished product mistake by pipeline
The import of filter 4, the discharge port 10 of second relief valve 9 are connected to the tank field house steward 6 by pipeline.When adsorbent bed reacts
When pressure in tower is more than the drainage pressure for setting, the first relief valve is opened, and the gas in adsorbent bed reaction tower is arranged to buffering
In tank, now in surge tank, air pressure is raised, and the air pressure of adsorbent bed reaction tower reduces, when the pressure in adsorbent bed reaction tower is less than
During the setting value of the first relief valve, the first safety law is closed, and the gas in gas and adsorbent bed reaction tower in surge tank leads to
Piping is entered and is filtered in finished filter.When the gas that adsorbent bed reaction tower is leaked into into surge tank is excessive, cause to delay
When the air pressure rushed in tank is higher than setting value, now the first safety law and the second relief valve are opened, and by the second relief valve
Air vent is to exhaust pressure relief in the general assembly of tank field.Therefore, the absorption plant of production acrylonitrile of the present utility model passes through two level securities
The pressure release of valve is arranged, can to greatest extent by the gas after being adsorbed by activated alumina adsorbents be delivered to finished filter and
In product storage tank, it is to avoid be discharged into excessive finished product in the house steward of tank field, therefore, it is possible to greatly improving production efficiency and yield.
In the present embodiment, the finished filter 4 is provided with two, finished filter 41 and standby finished product mistake based on difference
Filter 41, the main finished filter 41 are arranged in parallel with the standby finished filter 42, only open under normal circumstances main into
Product filter, when main finished filter breakdown maintenance or too high adsorbent bed reactor pressure, just starts standby finished product and filters
Device.
10～30 DEG C of the optimum operating temperature of adsorbent bed reactor 1, in order to keep optimal working condition, the adsorbent bed
Several temperature sensors 11 are arranged at intervals with along tower wall in reaction tower 1 is used for monitoring the operating temperature in tower body, the absorption
The outside of bed reaction tower 1 is provided with for the heat sink 12 to the adsorbent bed reaction tower 1 cooling, the heat sink 12 with
The temperature sensor 11 is associated, and when detecting tower body interior temperature and spending high, i.e., tower body is lowered the temperature.The heat sink
For cold water spray device, the sprinkler head 13 of the cold water spray device is arranged on the surface and side of the adsorbent bed reaction tower 1
Face, the cold water spray device is by pump to sprinkler head internal pump water.The heat sink of other modes can certainly be adopted, as long as
Cooling-down effect can be played to whole tower body.
Above-mentioned specific embodiment is simply explained in detail to the technical solution of the utility model, and this utility model is not
Only be limited only to above-described embodiment, it will be understood by those skilled in the art that every according to above-mentioned principle and spirit in this practicality
Improvement, replacement on novel foundation, all should be within protection domain of the present utility model.
Claims (5)
1. a kind of absorption plant for producing acrylonitrile, it is characterised in that：Including adsorbent bed reaction tower, in the adsorbent bed reaction tower
Activated alumina adsorbents are provided with, the activated alumina adsorbents are supported on the adsorbent bed reaction tower by stationary grizzly
Interior, the inner chamber of the adsorbent bed reaction tower is vertically divided into two independent chambers by dividing plate, containing high peroxide
Acrylonitrile raw material respectively enters two chambers, the upper end difference of two chambers from the bottom of the adsorbent bed reaction tower
Reaction tower outlet is provided with, the reaction tower outlet is connected to finished filter by pipeline, the finished filter
Products export is connected to product storage tank, is provided with waste gate below the finished filter, the waste gate with
Tank field house steward connects；Two chamber upper ends are respectively arranged with the first relief valve, and the outlet of first relief valve is connected to
The inner chamber of surge tank, the upper end of the surge tank are provided with the second relief valve, first relief valve and second relief valve
Drainage pressure identical, the inner chamber of the surge tank is connected to the import of the finished filter by pipeline, second peace
The discharge port of full valve is connected to the tank field house steward by pipeline.
2. according to claim 1 production acrylonitrile absorption plant, it is characterised in that：The finished filter is provided with
Two, respectively based on finished filter and standby finished filter, the main finished filter and the standby finished filter
It is arranged in parallel.
3. according to claim 1 and 2 production acrylonitrile absorption plant, it is characterised in that：The adsorbent bed reaction tower
Interior several temperature sensors are arranged at intervals with along tower wall.
4. according to claim 3 production acrylonitrile absorption plant, it is characterised in that：Outside the adsorbent bed reaction tower
Side is provided with for the heat sink to adsorbent bed reaction tower cooling, and the heat sink is closed with the temperature sensor
Connection.
5. according to claim 4 production acrylonitrile absorption plant, it is characterised in that：The heat sink is sprayed for cold water
Shower device, the sprinkler head of the cold water spray device are arranged on the surface and/or side of the adsorbent bed reaction tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709805.8U CN206008221U (en) | 2016-07-07 | 2016-07-07 | A kind of absorption plant for producing acrylonitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709805.8U CN206008221U (en) | 2016-07-07 | 2016-07-07 | A kind of absorption plant for producing acrylonitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206008221U true CN206008221U (en) | 2017-03-15 |
Family
ID=58244279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620709805.8U Expired - Fee Related CN206008221U (en) | 2016-07-07 | 2016-07-07 | A kind of absorption plant for producing acrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206008221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413441A (en) * | 2020-05-06 | 2020-07-14 | 湖北弗顿生化科技有限公司 | Acetonitrile purification process for improved ultra-high liquid chromatography-mass spectrometer |
-
2016
- 2016-07-07 CN CN201620709805.8U patent/CN206008221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413441A (en) * | 2020-05-06 | 2020-07-14 | 湖北弗顿生化科技有限公司 | Acetonitrile purification process for improved ultra-high liquid chromatography-mass spectrometer |
| CN111413441B (en) * | 2020-05-06 | 2022-04-19 | 湖北弗顿生化科技有限公司 | Acetonitrile purification method for improved ultra-high liquid chromatography-mass spectrometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20180707 |