CN106431982B - A kind of method and device for preventing isophthalodinitrile from agglomerating - Google Patents
A kind of method and device for preventing isophthalodinitrile from agglomerating Download PDFInfo
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- CN106431982B CN106431982B CN201610966766.4A CN201610966766A CN106431982B CN 106431982 B CN106431982 B CN 106431982B CN 201610966766 A CN201610966766 A CN 201610966766A CN 106431982 B CN106431982 B CN 106431982B
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- isophthalodinitrile
- vibrating screen
- pelletizer
- feed bin
- dust collector
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
- C07C253/28—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing six-membered aromatic rings, e.g. styrene
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Glanulating (AREA)
Abstract
The present invention relates to a kind of method and devices for preventing isophthalodinitrile from agglomerating; enter fluidized bed through vaporizer after ammonia and meta-xylene vaporization and carries out ammoxidation reaction; product enters thin-walled collector through oil cooler and carries out cooling rewinding; product is poured washing kettle with water and wash, is centrifuged, dries by interval; feed bin is entered by screw conveyor after product drying; pelletizer is added using using single screw rod charger after broken; olive-shaped particle is made; then it is sieved through vibrating screen device; isophthalodinitrile dry powder plate is broken granulation, becomes finished particle after screening；Isophthalodinitrile particle is discharged by vibrating screen and is packed.Olive-shaped finished particle, the automatic packaging of vibrating screen discharging, since product is graininess is made by pelletizer in isophthalodinitrile of the present invention; density is increased, will not be agglomerated, therefore packs and uses jumbo bag; the labor intensity of follow-up work can be reduced, reduce labour, while also mitigating dust pollution.
Description
Technical field
The present invention relates to a kind of method and devices for preventing isophthalodinitrile from agglomerating, and belong to fine organic compound preparation skill
Art field.
Background technique
Isophthalodinitrile is a kind of important chemical products, it is the intermediate for preparing fine organic compound, it is to close
At the important source material of agriculture chemicals fungicide Bravo, it is also used as producing plastics, synthetic fibers and epoxy curing agent
The raw material of equal products.
Enter fluidized bed through vaporizer after original production process, ammonia and meta-xylene vaporization and carry out ammoxidation reaction, generates
Object enters thin-walled collector through oil cooler and carries out cooling rewinding, and product is intermittently poured washing kettle with water and wash, be centrifuged, dry,
Isophthalodinitrile product is obtained after cyclone dust removal.The design feature of isophthalodinitrile crystal is very special, and crystal is in needle-shaped or thin
Sheet is being easy adhesion agglomeration between crystal in cooling down crystallization process, therefore product is 25 kilograms/bag packaging, Bu Nengzeng
Add bale capacity.And the still adhesion of 25 kilograms of isophthalodinitrile products, at bulk, separation is difficult, so that downstream product Bravo is in life
Labour and labor intensity are increased when production feeds intake.
Summary of the invention
An object of the present invention is to provide a kind of method for preventing isophthalodinitrile from agglomerating, and can prevent isophthalodinitrile from producing
Product adhesion can reduce the labor intensity of follow-up work, reduce labour at bulk.
The second object of the present invention is to provide a kind of device for preventing isophthalodinitrile from agglomerating, the labor of follow-up work can be reduced
Fatigue resistance reduces labour.
The present invention solves the above problems used technical solution are as follows: a method of prevent isophthalodinitrile from agglomerating, ammonia
Enter fluidized bed through vaporizer after gas and meta-xylene vaporization and carry out ammoxidation reaction, product enters thin-walled rewinding through oil cooler
Device carries out cooling rewinding, and product is intermittently poured washing kettle with water and wash, be centrifuged, dry, it is defeated to pass through auger after product drying
It send machine to enter feed bin, pelletizer is added using using single screw rod charger, olive-shaped particle is made, then through vibrating screen device
It is packed after screening, powder conveys bag-type dust through air-flow in screening process.
Isophthalodinitrile dry powder be made in the case where single screw rod feeds and roll dual-pressure effect it is fine and close it is hard it is olive-shaped at
Product particle；Isophthalodinitrile is after roll-in is granulated, and intergranular air is squeezed out, and grain spacing is close enough, and product will not
Agglomeration.Isophthalodinitrile particle is discharged by vibrating screen and is packed automatically, since product is graininess, increases density, Bu Huijie
Block, therefore pack and use jumbo bag, while also mitigating dust pollution.
The powder of vibrating screen screening is after air-flow conveying, bag-type dust, into feed bin, recycling.
It is a kind of prevent isophthalodinitrile agglomerate device, it include drying tower, cyclone dust collector, bag-type dust collector,
Screw conveyor, feed bin, pelletizer, vibrating screen and packing device；The drying tower, cyclone dust collector, screw conveyor, material
Storehouse, pelletizer, vibrating screen and packing device are sequentially connected in series setting, the cyclone dust collector dust outlet and bag-type dust collector
It is connected, the vibrating screen dust outlet is connected by air delivery tube road with feed bin.
Bag-type dust collector is provided between the air delivery tube road and feed bin.
The bag-type dust collector is also connected with the dust outlet of feed bin.
The pelletizer is fed using single screw rod charger；The pelletizer includes the roller of two opposite directions revolution, roller
Sublist face band gear-like, while olive-shaped slot is carved in roller inner edge.
Compared with the prior art, the advantages of the present invention are as follows:
Olive-shaped finished particle, the automatic packaging of vibrating screen discharging, since product is is made by pelletizer in isophthalodinitrile
Graininess, granule strength is big, non-breakable, is easily sieved, and surface is smooth, will not agglomerate, therefore packs and use jumbo bag, after can reducing
The labor intensity of continuous work reduces labour, while also mitigating dust pollution.
Detailed description of the invention
Fig. 1 is that one kind prevents isophthalodinitrile agglomeration schematic device in the embodiment of the present invention.
Wherein:
Drying tower 1, cyclone dust collector 2, bag-type dust collector 3, screw conveyor 4, feed bin 5, pelletizer 6, vibrating screen
7, packing device 8.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment 1:
Through vaporizer after the method that one of the present embodiment prevents isophthalodinitrile from agglomerating, ammonia and meta-xylene vaporization
Ammoxidation reaction is carried out into fluidized bed, product enters thin-walled collector through oil cooler and carries out cooling rewinding, intermittently will with water
Product pours washing kettle washing, centrifugation, drying, enters feed bin by screw conveyor after product drying, increases after feed bin
One pelletizer and vibrating screen, while air-flow conveys bag-type dust；Isophthalodinitrile dry powder is agglomerated into fine and close heavily fortified point under high pressure effect
Hard plate, plate is again by roller crushing, and material is conveyed using single screw rod, and material is brought into the roller of two opposite directions revolution
In gap, roller surfaces band gear-like, and meanwhile it is olive-shaped in roller inner edge cutting, when material enters between roller, material
Just it is pressed into agglomerate.Charging is conveyed using single screw rod, and feed pressure can reach 0.5Mpa, when double roller wheel works at the same time, pressure
It can reach 8Mpa, it is olive-shaped for being granulated shape；Isophthalodinitrile is after roll-in is granulated, and intergranular air is squeezed out, particle
Spacing is close enough, and product will not agglomerate.Isophthalodinitrile particle is discharged by vibrating screen and is packed automatically, since product is particle
Shape increases density, will not agglomerate, therefore packs and use jumbo bag, while also mitigating dust pollution.
The powder of vibrating screen screening is after air-flow conveying, bag-type dust collector, into feed bin, recycling.
Manufactured olive-shaped grains intensity is big, non-breakable, is easily sieved, surface is smooth, prevented from caking.
Embodiment 2:
As shown in Figure 1, the device that one of the present embodiment prevents isophthalodinitrile from agglomerating, including drying tower 1, whirlwind remove
Dirt device 2, bag-type dust collector 3, screw conveyor 4, feed bin 5, pelletizer 6, vibrating screen 7 and packing device 8；The drying tower
1, cyclone dust collector 2, screw conveyor 4, feed bin 5, pelletizer 6, vibrating screen 7 and packing device 8 are sequentially connected in series setting, described
2 dust outlet of cyclone dust collector is connected with bag-type dust collector 3, and 7 dust outlet of vibrating screen passes through air delivery tube road
It is connected with feed bin 5.
The pelletizer 6 is fed using single screw rod charger；The pelletizer includes the roller of two opposite directions revolution, roller
Sublist face band gear-like, at the same it is olive-shaped in roller inner edge cutting.
Bag-type dust collector 3 is provided between the air delivery tube road and feed bin 5.
Comparative example 1:
This comparative example the difference from embodiment 1 is that, material does not pass through single screw rod charger but is directly brought into two
In the roller gap of opposite direction revolution, roller surfaces band gear-like, granulation shape is sheet.Ratio of briquetting is low, bulk density is small,
Easily agglomeration, transportation cost is high, and granule strength is small, easily broken.
Comparative example 2:
This comparative example the difference from embodiment 1 is that, material does not pass through single screw rod charger but is directly brought into two
In the roller gap of opposite direction revolution, roller surfaces band gear-like, material is just pressed into agglomerate, and shape is by the gear on roller
Shape control, granulation shape are strip.Ratio of briquetting is low, bulk density is small, easily agglomerates, and transportation cost is high, and granule strength is small, easily
It is broken.
Comparative example 3:
This comparative example the difference from embodiment 1 is that, material does not pass through single screw rod charger but is directly brought into two
In the roller gap of opposite direction revolution, roller surfaces band gear-like, it is rodlike for being granulated shape.Ratio of briquetting is low, bulk density is small,
Easily agglomeration, transportation cost is high, and granule strength is small, easily broken.
Comparative example 4:
This comparative example the difference from embodiment 1 is that, material does not pass through single screw rod charger but is directly brought into two
In the roller gap of opposite direction revolution, roller surfaces band gear-like, it is spherical for being granulated shape.Ratio of briquetting is low, bulk density is small,
Easily agglomeration, transportation cost is high, and granule strength is small, easily broken.
Comparative example 5:
The difference of this comparative example and comparative example 4 is that material is brought into two opposite directions by single screw rod charger and returns
In the roller gap turned, that is, pressurized treatments are used when feeding；It is spherical for being granulated shape.Granule strength becomes larger, but still forms
Rate is low, easy agglomeration.
。
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiments
The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.
Claims (5)
1. it is a kind of prevent isophthalodinitrile agglomerate method, it is characterised in that: ammonia and meta-xylene vaporization after through vaporizer into
Fluidized bed carries out ammoxidation reaction, and product enters thin-walled collector through oil cooler and carries out cooling rewinding, will intermittently be produced with water
Product pour washing kettle washing, centrifugation, dry, enter feed bin by screw conveyor after product drying, using adopting after being crushed
Pelletizer is added with single screw rod charger, olive-shaped particle is made, is then sieved through vibrating screen device, isophthalodinitrile dry powder plate
Block is broken granulation, becomes finished particle after screening；Isophthalodinitrile particle is discharged by vibrating screen and is packed；The pelletizer packet
The roller of two opposite directions revolution, roller surfaces band gear-like are included, while carving olive-shaped slot in roller inner edge.
2. a kind of method for preventing isophthalodinitrile from agglomerating according to claim 1, it is characterised in that: vibrating screen screening
Powder is conveyed through air-flow, after bag-type dust, into feed bin, recycling.
3. one kind prevent isophthalodinitrile agglomerate device, it is characterised in that: it include drying tower (1), cyclone dust collector (2),
Bag-type dust collector (3), screw conveyor (4), feed bin (5), pelletizer (6), vibrating screen (7) and packing device (8)；It is described dry
Dry tower (1), cyclone dust collector (2), screw conveyor (4), feed bin (5), pelletizer (6), vibrating screen (7) and packing device
(8) it is sequentially connected in series setting, cyclone dust collector (2) dust outlet is connected with bag-type dust collector (3), the vibrating screen
(7) dust outlet is connected by air delivery tube road with feed bin (5)；The pelletizer (6) is fed using single screw rod charger；
The pelletizer includes the roller of two opposite directions revolution, and roller surfaces carve olive with gear-like, while in roller inner edge
Shape slot.
4. it is according to claim 3 prevent isophthalodinitrile agglomerate device, it is characterised in that: the air delivery tube road with
Feed bin is provided with bag-type dust collector between (5).
5. according to claim 4 prevent isophthalodinitrile agglomeration device, it is characterised in that: the bag-type dust collector is also
It is connected with the dust outlet of feed bin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966766.4A CN106431982B (en) | 2016-11-05 | 2016-11-05 | A kind of method and device for preventing isophthalodinitrile from agglomerating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966766.4A CN106431982B (en) | 2016-11-05 | 2016-11-05 | A kind of method and device for preventing isophthalodinitrile from agglomerating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106431982A CN106431982A (en) | 2017-02-22 |
| CN106431982B true CN106431982B (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610966766.4A Active CN106431982B (en) | 2016-11-05 | 2016-11-05 | A kind of method and device for preventing isophthalodinitrile from agglomerating |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107722073A (en) * | 2017-08-24 | 2018-02-23 | 溧阳维信生物科技有限公司 | A kind of apparatus and method for solving marine alga caking phenomenon in storage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959336A (en) * | 1973-10-10 | 1976-05-25 | Sun Ventures, Inc. | Ammoxidation process |
| US20090192334A1 (en) * | 2004-06-23 | 2009-07-30 | Kazuhiko Amakawa | Process for producing highly purified xyltlenediamine |
| CN204434527U (en) * | 2015-01-16 | 2015-07-01 | 泰州百力化学股份有限公司 | A kind of production equipment improving Isophthalodinitrile yield |
| CN106068254A (en) * | 2014-03-10 | 2016-11-02 | 三菱瓦斯化学株式会社 | The manufacture method of dicyanobenzenes and manufacture device |
-
2016
- 2016-11-05 CN CN201610966766.4A patent/CN106431982B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959336A (en) * | 1973-10-10 | 1976-05-25 | Sun Ventures, Inc. | Ammoxidation process |
| US20090192334A1 (en) * | 2004-06-23 | 2009-07-30 | Kazuhiko Amakawa | Process for producing highly purified xyltlenediamine |
| CN106068254A (en) * | 2014-03-10 | 2016-11-02 | 三菱瓦斯化学株式会社 | The manufacture method of dicyanobenzenes and manufacture device |
| CN204434527U (en) * | 2015-01-16 | 2015-07-01 | 泰州百力化学股份有限公司 | A kind of production equipment improving Isophthalodinitrile yield |
Non-Patent Citations (1)
| Title |
|---|
| 我国粉体造粒技术的现状与展望;李建平等;《化工机械》;20011030;第28卷(第5期);第295-298，285页 |
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| CN106431982A (en) | 2017-02-22 |
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