CN203610136U - Polyamide resin synthesis amine adding device - Google Patents
Polyamide resin synthesis amine adding device Download PDFInfo
- Publication number
- CN203610136U CN203610136U CN201420055258.7U CN201420055258U CN203610136U CN 203610136 U CN203610136 U CN 203610136U CN 201420055258 U CN201420055258 U CN 201420055258U CN 203610136 U CN203610136 U CN 203610136U
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- cooling
- cooler
- polyamide resin
- jacket
- resin synthesis
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Abstract
The utility model discloses a polyamide resin synthesis amine adding device, which comprises a cooling device and a condensation kettle, wherein the cooling device comprises a cooler and a cooling sleeve; the cooling sleeve comprises a cooling jacket; a cooling coil is arranged in the cooling jacket; one end of the cooling coil is connected with a water inlet pipe; the other end of the cooling coil is connected with a water outlet pipe; the cooling sleeve is mounted outside a raw material pipe; raw materials enter the condensation kettle used for condensation polymerization through the cooler and the raw material pipe in sequence. According to the polyamide resin synthesis amine adding device, in order to ensure the stability of the temperature in the reaction, the cooling sleeve is additionally arranged for cooling the raw materials again behind the cooler, and the raw materials are cooled by the cooling sleeve through the adoption of circulating water. The polyamide resin synthesis amine adding device has the advantages that the structure is simple, the cost is low, the condensation polymerization effect is good, and the product quality is high.
Description
Technical field
The utility model relates to fine chemical technology field, especially relates to a kind of synthetic amine device that adds take dimeric dibasic acid as raw material, in synthesizing polyamides resin technique.
Background technology
Dimeric dibasic acid is widely used in Chemical Manufacture, various informative, be the base stock of multiple fine chemical product.Dimeric dibasic acid and diamine or polyamine carry out the product obtaining after polycondensation reaction, are exactly polyamide.Producing in polyamide synthesis technique, generally adopt two kinds to add amine method: to mix and add amine method and drip amine method.Add in amine method in mixing, when reaction, dimeric dibasic acid, unit acid, binary acid are added in the lump, and then slowly temperature reaction, the method is simple to operate, but its shortcoming is: 1) water generation reaction in polycondensation reaction is not easy to discharge; 2) reaction heating rate is too fast; 3) can produce punching material phenomenon, cause the obstruction of condensing plant; 4) the polyamide molecular weight ratio in production is not easy to control.Dripping amine method is to be warmed up to after uniform temperature until dimeric dibasic acid, unit acid, slowly splashes into diamine, and the generation water of polycondensation reaction is successively discharged consersion unit.This technological requirement operating personnel add amine speed according to the situation adjustment in reactor at any time, guarantee that reacting balance carries out; In course of reaction, the strict reaction speed of controlling keeps adding amine speed and goes out water speed and equate.
Dripping in the reaction of amine method, when excess Temperature, the diamine adding easily runs amine phenomenon, actually adds amine amount and metering and adds and between amine amount, exist certain deviation, impact to react normally to carry out thereby cause.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming existing in prior art, a kind of synthetic amine device that adds is provided, this device is high in order to overcome the temperature existing in prior art, easily run the phenomenon of amine, after cooler, be provided with again coolant jacket, the technical scheme adopting is: the synthetic amine device that adds of a kind of polyamide, comprise cooling device and condensation kettle, it is characterized in that: described cooling device comprises cooler and coolant jacket, described coolant jacket comprises cooling jacket, in cooling jacket, be provided with cooling coil, one end of cooling coil connects water inlet pipe, the other end connects outlet pipe, coolant jacket is contained in the outside of mother tube, cooler, between mother tube and condensation kettle, connect by pipeline.
Technical characterictic of the present utility model also has: in described condensation kettle, shaft is housed, paddle is installed on shaft.
Technical characterictic of the present utility model also has: described cooler is horizontal type cooler.
The beneficial effects of the utility model are: this device, in order to guarantee the stable of temperature in reaction, has installed again coolant jacket additional and again carried out the cooling of raw material after cooler; Coolant jacket adopts recirculated water to complete the cooling of raw material.The utlity model has advantage simple in structure, with low cost, that polycondensation reaction is effective, product quality is high.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation, and accompanying drawing 2 is coolant jacket structural representations, and wherein 1 is condensation kettle, the 2nd, and coolant jacket, the 3rd, cooler, the 4th, cooling jacket, the 5th, shaft, the 6th, paddle, the 7th, water inlet pipe, the 8th, outlet pipe, the 9th, adpting flange.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.The utility model discloses that a kind of polyamide is synthetic adds amine device, this device comprises cooling device and condensation kettle 1.Wherein cooling device comprises cooler 3 and coolant jacket 2, coolant jacket 2 comprises cooling jacket 4, in cooling jacket 4, be provided with cooling coil, one end of cooling coil connects water inlet pipe 7, the other end connects outlet pipe 8, coolant jacket is contained in the outside of mother tube, and raw material enters into the condensation kettle 1 that carries out polycondensation reaction successively after cooler 3, mother tube.
In order to guarantee reaction effect in condensation kettle 1, shaft 5 is housed in condensation kettle 1, paddle 6 is installed on shaft 5.
In the present embodiment, cooler 3 is horizontal type cooler.
When use, first raw material enters into cooler 3, enter into mother tube through the preliminary cooling raw material of subcooler 3, because cooling jacket 4 is equipped with in the outside of mother tube, the secondary that carries out raw material in cooling jacket 4 by the recirculated water passing into cools, and the raw material after cooling completing is delivered to and in condensation kettle 1, carries out polycondensation reaction.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present utility model, also belong to protection domain of the present utility model.
Claims (3)
1. the synthetic amine device that adds of polyamide, comprise cooling device and condensation kettle, it is characterized in that: described cooling device comprises cooler and coolant jacket, described coolant jacket comprises cooling jacket, in cooling jacket, be provided with cooling coil, one end of cooling coil connects water inlet pipe, the other end connects outlet pipe, and coolant jacket is contained in the outside of mother tube, between cooler, mother tube and condensation kettle, connects by pipeline.
2. add amine device according to polyamide claimed in claim 1 is synthetic, it is characterized in that: in described condensation kettle, shaft is housed, paddle is installed on shaft.
3. add amine device according to polyamide claimed in claim 1 is synthetic, it is characterized in that: described cooler is horizontal type cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055258.7U CN203610136U (en) | 2014-01-28 | 2014-01-28 | Polyamide resin synthesis amine adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055258.7U CN203610136U (en) | 2014-01-28 | 2014-01-28 | Polyamide resin synthesis amine adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203610136U true CN203610136U (en) | 2014-05-28 |
Family
ID=50762817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055258.7U Expired - Fee Related CN203610136U (en) | 2014-01-28 | 2014-01-28 | Polyamide resin synthesis amine adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203610136U (en) |
-
2014
- 2014-01-28 CN CN201420055258.7U patent/CN203610136U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140528 Termination date: 20170128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |