CN208038353U - Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device - Google Patents
Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device Download PDFInfo
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- CN208038353U CN208038353U CN201820244426.5U CN201820244426U CN208038353U CN 208038353 U CN208038353 U CN 208038353U CN 201820244426 U CN201820244426 U CN 201820244426U CN 208038353 U CN208038353 U CN 208038353U
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- waste water
- pyromellitic acid
- comprehensive utilization
- acid anhydride
- distillation still
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- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
The utility model discloses a kind of pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization devices, waste water storage pond including storing oxidized waste water, several the first distillation stills in parallel are connected with behind waste water storage pond, the sour water storage tank that sour water is distillated in the first distillation still of storage is connected on the autoclave body of first distillation still, the bottom of the first distillation still is connected with crude product cis-butenedioic anhydride storagetank；Crude product cis-butenedioic anhydride storagetank is connected by pipeline with dissolution kettle, filter, centrifugal device, drying machine and packing machine are followed successively by after dissolution kettle, centrifugal device is also connected with after-fractionating kettle, and the top of the autoclave body of after-fractionating kettle is connected with heat exchanger, and acetic anhydride storage tank is led to after heat exchanger.The utility model can realize the zero-emission of water resource recycled with waste water, comply with environmentally protective sustainable development, and the present apparatus can turn waste into wealth, and by the high added value production cis-butenedioic anhydride purification production in oxidized waste water, improve the economic benefit of company.
Description
Technical field
The utility model is related to chemical wastewater treatment fields, are provided more particularly to a kind of pyromellitic acid anhydride oxidized waste water
Source comprehensive utilization device.
Background technology
Pyromellitic acid anhydride（Abbreviation dianhydride）Mainly for the production of Kapton, engineering plastics, coating additive, modeling
Expect auxiliary agent and binder etc., due to polyimides have excellent mechanics, electricity, physical and chemical properties and be widely used in
Electromechanical, aerospace, the numerous areas such as nuclear energy and electronics industry.The industrial process of dianhydride is mainly with catalytic gas phase oxidation method
It is main, using durol as raw material, equal acid anhydride is directly made without dehydration, has simple for process, production cost is relatively low, be easy to from
Dynamicization operates, and is suitble to many advantages such as industrial production, is the prevailing technology for producing dianhydride in the world at present.
In the production process of pyromellitic acid anhydride, a large amount of tail gas is will produce, wherein containing more reaction by-product
Object, at present mainly by water process heel row to air, to produce a large amount of waste water.Waste water mainly entrusts professional qualification at present
Mechanism is handled.It is found in being tested and analyzed to waste component, main component is maleic anhydride（Abbreviation cis-butenedioic anhydride）, it is
A kind of important raw material of industry is widely used in plastics industry, paper industry and synthetic resin industry, has very high add
Value.Therefore, a kind of having great importance for oxidized waste water money cyclisation comprehensive utilization technique is researched and developed.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of pyromellitic acid anhydride oxidized waste water recycling comprehensive
It closes and utilizes device, can realize the zero-emission of water resource recycled with waste water.
In order to solve the above technical problems, the technical solution that the utility model uses is：
A kind of pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device is provided, including stores oxidized waste water
Waste water storage pond is connected with several the first distillation stills in parallel, the autoclave body of first distillation still behind the waste water storage pond
On be connected with the sour water storage tank for storing and distillating sour water in first distillation still, the bottom of first distillation still is connected with crude product
Cis-butenedioic anhydride storagetank；The crude product cis-butenedioic anhydride storagetank is connected by pipeline with dissolution kettle, be followed successively by after the dissolution kettle filter, from
Center device, drying machine and packing machine, the centrifugal device are also connected with after-fractionating kettle, the autoclave body of the after-fractionating kettle it is upper
Portion is connected with heat exchanger, and acetic anhydride storage tank is led to after the heat exchanger.
In one preferred embodiment of the utility model, several liquid-ring vacuum pumps are connected with first distillation still.
In one preferred embodiment of the utility model, between the waste water storage pond and the first distillation still, described
It is both provided with elevator pump between centrifugal device and the after-fractionating kettle.
In one preferred embodiment of the utility model, elevator pump extraction is provided with after the sour water storage tank and is recycled makes
Sour water.
In one preferred embodiment of the utility model, it is recyclable that elevator pump extraction is provided with after the acetic anhydride storage tank
The acetic anhydride used.
In one preferred embodiment of the utility model, the waste water storage pond is made of acid and alkali-resistance material.
The utility model has the beneficial effects that：The utility model pyromellitic acid anhydride oxidized waste water comprehensive utilization of resources
Device can realize the zero-emission of water resource recycled with waste water, comply with environmentally protective sustainable development, in addition,
The present apparatus can turn waste into wealth, by the high value added product in pyromellitic acid anhydride oxidized waste water --- cis-butenedioic anhydride purification production,
Improve the economic benefit of company.
Description of the drawings
Fig. 1 is the flow diagram of one preferred embodiment of the utility model；
The label of each component is as follows in attached drawing：1, waste water storage pond, the 2, first distillation still, 3, crude product cis-butenedioic anhydride storagetank, 4,
Condenser, 5, sour water storage tank, 6, liquid-ring vacuum pump, 7, dissolution kettle, 8, filter, 9, crystallization kettle, 10, centrifugal device, 11,
Two distillation stills, 12, residue storagetank, 13, heat exchanger, 14, acetic anhydride storage tank, 15, drying machine, 16, packing machine；
I, oxidized waste water, II, sour water, III, acetic anhydride, IV, fine work cis-butenedioic anhydride.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
Referring to Fig. 1, the utility model embodiment includes：
A kind of I Resource comprehensive utilization device of pyromellitic acid anhydride oxidized waste water, including store the useless of oxidized waste water I
Water storage pool 1 is connected with several the first distillation stills 2 in parallel, several liquid-ring vacuum pumps 6 behind the waste water storage pond 1
It is connected with first distillation still 2.It is connected with to store on the autoclave body of first distillation still 2 and be distillated in first distillation still 2
The bottom of the sour water storage tank 5 of sour water II, first distillation still 2 is connected with crude product cis-butenedioic anhydride storagetank 3；The crude product cis-butenedioic anhydride storage
Slot 3 is connected by pipeline with dissolution kettle 7, and filter 8, centrifugal device 10, drying machine 15 and packaging are followed successively by after the dissolution kettle 7
Machine 16, the centrifugal device 10 are also connected with after-fractionating kettle 11, the top of the autoclave body of the after-fractionating kettle 11 and heat exchanger
13 are connected, and acetic anhydride storage tank 14 is led to after the heat exchanger 13.
Between 1 and first distillation still 2 of the waste water storage pond, in the centrifugal device 10 and the after-fractionating kettle 11
Between be both provided with elevator pump.
It is provided with elevator pump after the sour water storage tank 5 and produces the sour water II that can be recycled, in the acetic anhydride storage tank
It is provided with elevator pump after 14 and produces the acetic anhydride III that can be recycled.
The waste water storage pond 1 is made of acid and alkali-resistance material.
The application method of the present embodiment：
Pyromellitic acid anhydride oxidized waste water I is stored in the waste water storage pond 1 made of acid and alkali-resistance material, oxidized waste water
I by elevator pump by it from being delivered in waste water storage pond 1 in first distillation still 2；Two the first distillation stills 2 in parallel are being made jointly
It under the action of liquid-ring vacuum pump 6, is evaporated under reduced pressure, and is constantly stirred, what is obtained from the first distillation still 2 evaporates
It is sour water II to go out object, and sour water storage tank 5 is flowed into after the condensation of II condensed device 4 of sour water, which can continue for handling oxidation
Exhaust gas, realization recycle.When the material in the first distillation still 2 is distilled to certain condition, by the crude product in the first distillation still 2
Cis-butenedioic anhydride is discarded in crude product cis-butenedioic anhydride storagetank 3 and is cooled down.In crude product cis-butenedioic anhydride merging dissolution kettle 7 after cooling, it is added a certain amount of
Acetic anhydride III and activated carbon, control process conditions, then filtered in crystallization kettle 9 through filter 8, crystallisation by cooling.It has crystallized
Cheng Hou is realized by centrifugal device 10 and is separated by solid-liquid separation that the liquid isolated is delivered in after-fractionating kettle 11, controls distillation condition,
Acetic anhydride III is steamed into acetic anhydride storage tank 14, is recycled.The residue that after-fractionating kettle 11 steams enters residue storagetank
12.Centrifugal device 10 centrifuges obtained remaining solid and is placed in drying in drying machine 15, after the completion of dry, is carried out into packing machine 16
Weighing and bagging obtains fine work cis-butenedioic anhydride IV.
The utility model pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device, can realize following for water resource
Ring utilizes and the zero-emission of waste water, has complied with environmentally protective sustainable development, in addition, the present apparatus can turn waste into wealth, it will be equal
High value added product in pyromellitic dianhydride oxidized waste water --- cis-butenedioic anhydride purification production improves the economic benefit of company.
In the description of the present invention, it should be noted that term "upper", "lower", "left", "right", "inner", "outside" etc.
The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when
The orientation or positional relationship usually put, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.The above description is only the embodiments of the present invention, is not intended to limit the patent of the utility model
Range, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or directly or
Other related technical areas are used in indirectly, are equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device, which is characterized in that including storing oxidation
The waste water storage pond of waste water is connected with several the first distillation stills in parallel, first distillation still behind the waste water storage pond
Autoclave body on be connected with the sour water storage tank for storing and distillating sour water in first distillation still, the bottom connection of first distillation still
There is crude product cis-butenedioic anhydride storagetank；The crude product cis-butenedioic anhydride storagetank is connected by pipeline with dissolution kettle, is followed successively by after the dissolution kettle
Filter, centrifugal device, drying machine and packing machine, the centrifugal device are also connected with after-fractionating kettle, the after-fractionating kettle
The top of autoclave body is connected with heat exchanger, and acetic anhydride storage tank is led to after the heat exchanger.
2. pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device according to claim 1, which is characterized in that
Several liquid-ring vacuum pumps are connected with first distillation still.
3. pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device according to claim 1, which is characterized in that
It is both provided with and carries between the waste water storage pond and the first distillation still, between the centrifugal device and the after-fractionating kettle
Rise pump.
4. pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device according to claim 1, which is characterized in that
It is provided with elevator pump after the sour water storage tank and produces the sour water that can be recycled.
5. pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device according to claim 1, which is characterized in that
It is provided with elevator pump after the acetic anhydride storage tank and produces the acetic anhydride that can be recycled.
6. pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device according to claim 1, which is characterized in that
The waste water storage pond is made of acid and alkali-resistance material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244426.5U CN208038353U (en) | 2018-02-11 | 2018-02-11 | Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244426.5U CN208038353U (en) | 2018-02-11 | 2018-02-11 | Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device |
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| Publication Number | Publication Date |
|---|---|
| CN208038353U true CN208038353U (en) | 2018-11-02 |
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| CN201820244426.5U Expired - Fee Related CN208038353U (en) | 2018-02-11 | 2018-02-11 | Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108299349A (en) * | 2018-02-11 | 2018-07-20 | 常熟联邦化工股份有限公司 | Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device |
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2018
- 2018-02-11 CN CN201820244426.5U patent/CN208038353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108299349A (en) * | 2018-02-11 | 2018-07-20 | 常熟联邦化工股份有限公司 | Pyromellitic acid anhydride oxidized waste water Resource comprehensive utilization device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20200211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |