CN204891276U - Toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate - Google Patents
Toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate Download PDFInfo
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- CN204891276U CN204891276U CN201520464431.3U CN201520464431U CN204891276U CN 204891276 U CN204891276 U CN 204891276U CN 201520464431 U CN201520464431 U CN 201520464431U CN 204891276 U CN204891276 U CN 204891276U
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- production
- inner bag
- condensing tower
- dichlorophenyl isocyanate
- toluene
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Abstract
The utility model discloses a toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate, it is including the production body to and the support of body bottom is put into production in the setting, production body top links to each other with the condensing tower top through the pipeline of giving vent to anger, it is equipped with valve and fan on the pipeline respectively to give vent to anger, be equipped with the inner bag in the condensing tower, the inner bag top is equipped with the spiral condenser, is located to be equipped with first filter screen on the inner bag of spiral condenser below, the space that forms between condensing tower inner wall and the inner bag evenly is equipped with a plurality of condensation pieces within a definite time, pass through the drain pipe way and retrieve the tank deck end to link to each other in the condensing tower bottom, on saying, the drain pipe is equipped with valve and water pump respectively, it is equipped with the second filter screen to retrieve a jar inner wall upper end. The utility model discloses reasonable in design has, convenient operation, and safe and reliable has avoided behind the gas leakage evaporation to form vaporous cloud and has produced serious consequences such as explosion, has improved the purity of product recovery.
Description
Technical field
The utility model relates to 3,4-dichlorophenyl isocyanate production field, is specifically related to 3,4-dichlorophenyl isocyanate production toluene recovery device.
Background technology
Agricultural chemicals is produced at protecting agriculture, improves overall productivity in agriculture, promotes stable food volume increase aspect, plays very important effect, is the indispensable resources of production of agricultural modernization and disaster relief supplies.Wherein, such as: 3,4-dichlorophenyl isocyanate is used as pesticide intermediate in agricultural chemicals preparation, and producing linuron, diuron etc., is a kind of important organic reagent and intermediate.
3,4-dichlorophenyl isocyanate is prepared workshop and is provided with toluene measuring tank, toluene recovery groove, if toluene storage tank office etc.But existing toluene recovery device easily Leakage Gas occurs, inflammable medium forms liquid pool, and evaporation forms vaporous cloud, and the major accident consequence caused mainly contains the serious consequence such as pond fire, vaporous cloud blast, adds the danger of Workshop Production; And, can entrained particles impurity in gas in removal process.
Utility model content
For above problems of the prior art, the utility model provides for 3,4-dichlorophenyl isocyanate production toluene recovery device.The device avoids after toluene leaks and evaporate serious consequences such as forming vaporous cloud generation blast, improve the purity of toluene recovery.
Technical problem to be solved in the utility model realizes by the following technical solutions:
3,4-dichlorophenyl isocyanate production toluene recovery device, it comprises production body, and is arranged on the support producing body bottom, it is characterized in that: described production body top is connected with condensing tower top by outlet pipe, described outlet pipe is respectively equipped with valve and blower fan; Be provided with inner bag in described condensing tower, described inner bag top is provided with spiral cooler, and the inner bag be positioned at below spiral cooler is provided with the first screen pack; Some condensation blocks are evenly provided with between the space formed between described condensing tower inwall and inner bag; Described condensing tower bottom is connected with recycling can top by fluid pipeline; Described fluid pipeline is respectively equipped with valve and water pump, and described recycling can inwall upper end is provided with the second screen pack.
As preferred embodiment, described production inner body wall bilateral symmetry is provided with heat block, and is provided with temperature-sensing element at production body bottom dead center position place.
As preferred embodiment, described first screen pack lower surface is provided with some tapered poles.
The beneficial effects of the utility model are: the vaporous cloud blast serious problems that (1) produces after leaking for prior art toluene, adopt and producing mode body connecting retracting device, the vaporous cloud that the toluene of accidental release is formed can be recovered in recycling can, avoid after toluene leaks and evaporate serious consequences such as forming vaporous cloud generation blast; (2) adopt twice filtration operation, the granule foreign of entrained with in product gas and product liquid is filtered, improves the purity of product; (3) improve the security of producing body, provide cost savings.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1-produces body; 2-heat block; 3-support; 4-temperature-sensing element; 5-outlet pipe; 6-valve; 7-blower fan; 8-condensing tower; 80-inner bag; 9-spiral cooler; 10-first screen pack; 11-tapered pole; 12-condensation block; 13-fluid pipeline; 14-water pump; 15-recycling can; 16-second screen pack.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1,3,4-dichlorophenyl isocyanate production toluene recovery device, it comprises production body 1, and be arranged on the support 3 producing body 1 bottom, produce body 1 top to be connected with condensing tower 8 top by outlet pipe 5, outlet pipe 5 is respectively equipped with valve 6 and blower fan 7, blower fan 7 accelerates the flow velocity of disulfonic gas; Inner bag 80 is provided with in condensing tower 8, inner bag 80 top is provided with spiral cooler 9, and inner bag 80 adds condensation effect, and the condensation effect of spiral cooler 9 is good, the inner bag 80 be positioned at below spiral cooler 9 is provided with the first screen pack 10, carries out except auxiliary work to disulfonic gas; Evenly be provided with some condensation blocks 12 between the space formed between condensing tower 8 inwall and inner bag 80, adopt inside and outside double-deck condensation to make to reach best to the condensation effect of disulfonic gas; Condensing tower 8 bottom is connected with recycling can 15 top by fluid pipeline 13; Fluid pipeline 13 is respectively equipped with valve 6 and water pump 14, recycling can 15 inwall upper end is provided with the second screen pack 16, liquid toluene is recovered in recycling can 15 by fluid pipeline by water pump 14, the second screen pack in recycling can 15 carries out further filtering and impurity removing to liquid toluene, improves the purity reclaiming toluene finished product.
Produce body 1 inwall bilateral symmetry and be provided with heat block 2, and be provided with temperature-sensing element 4 at production body 1 bottom dead center position place, the heat block 2 in temperature-sensing element 4 production control body 1 heats up, and makes the gasification of toluene reach an optimum temperature value.
First screen pack 10 lower surface is provided with some tapered poles 11.
After toluene leaks, open the blower fan 7 on outlet pipe 5 and valve 6, temperature-sensing element 4 controls heat block 2 and heats up, the gasification of toluene is accelerated, reach optimum temperature value, the toluene produced in body 1 forms gas or steam cloud, vaporous cloud is transported in condensing tower 8 by outlet pipe 5, after gas in condensing tower 8 is cooled to liquid by the spiral cooler 9 in condensing tower 8 and condensation block 12, major part liquid drops onto condensing tower 8 bottom by the tapered pole 11 of putting that the first screen pack 10 is established, in this process, first screen pack 10 can filter out most of granule foreign contained in disulfonic gas, then water pump 14 and valve 6 is opened Liquid transfer is interior to recycling can 15, tapered pole 11 is easier to the liquid drippage formed, accelerate the liquefaction of disulfonic gas, the second screen pack 16 arranged in recycling can 15 carries out filtering and impurity removing to liquid toluene further.This device ensures the safety of human body, recovering effect is very good, add the security of producing body 1, the vaporous cloud that the toluene of accidental release is formed can be recovered in recycling can 15, avoid after toluene leaks and evaporate the serious consequence forming the blast that vaporous cloud produces, the problem that in timely process for producing body 1, toluene leaks, provides cost savings, benzene can be utilized again.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1.3,4-dichlorophenyl isocyanate production toluene recovery device, it comprises production body, and is arranged on the support producing body bottom, it is characterized in that: described production body top is connected with condensing tower top by outlet pipe, described outlet pipe is respectively equipped with valve and blower fan; Be provided with inner bag in described condensing tower, described inner bag top is provided with spiral cooler, and the inner bag be positioned at below spiral cooler is provided with the first screen pack; Some condensation blocks are evenly provided with between the space formed between described condensing tower inwall and inner bag; Described condensing tower bottom is connected with recycling can top by fluid pipeline; Described fluid pipeline is respectively equipped with valve and water pump, and described recycling can inwall upper end is provided with the second screen pack.
2. 3,4-dichlorophenyl isocyanate production toluene recovery devices according to claim 1, is characterized in that: described production inner body wall bilateral symmetry is provided with heat block, and are provided with temperature-sensing element at production body bottom dead center position place.
3. 3,4-dichlorophenyl isocyanate production toluene recovery devices according to claim 1, is characterized in that: described first screen pack lower surface is provided with some tapered poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520464431.3U CN204891276U (en) | 2015-06-29 | 2015-06-29 | Toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520464431.3U CN204891276U (en) | 2015-06-29 | 2015-06-29 | Toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204891276U true CN204891276U (en) | 2015-12-23 |
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ID=54913493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520464431.3U Expired - Fee Related CN204891276U (en) | 2015-06-29 | 2015-06-29 | Toluene recovery unit is used in production of 3, 4 - dichlorophenyl isocyanate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204891276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124595A (en) * | 2019-06-13 | 2019-08-16 | 江苏可奥熙光学材料科技有限公司 | A kind of lens monomer reaction kettle high-efficiency condensation device |
| CN112675787A (en) * | 2020-12-14 | 2021-04-20 | 安徽国星生物化学有限公司 | Safe and environment-friendly dichlorous salt purifying device and purifying method for dichlorous blocks |
| CN110124595B (en) * | 2019-06-13 | 2024-04-30 | 江苏可奥熙光学材料科技有限公司 | Lens monomer is high-efficient condensing equipment for reation kettle |
-
2015
- 2015-06-29 CN CN201520464431.3U patent/CN204891276U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124595A (en) * | 2019-06-13 | 2019-08-16 | 江苏可奥熙光学材料科技有限公司 | A kind of lens monomer reaction kettle high-efficiency condensation device |
| CN110124595B (en) * | 2019-06-13 | 2024-04-30 | 江苏可奥熙光学材料科技有限公司 | Lens monomer is high-efficient condensing equipment for reation kettle |
| CN112675787A (en) * | 2020-12-14 | 2021-04-20 | 安徽国星生物化学有限公司 | Safe and environment-friendly dichlorous salt purifying device and purifying method for dichlorous blocks |
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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: 20151223 Termination date: 20180629 |