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Device and method for continuous production of amino resin

A technology of amino resin and production device, which is applied in the field of continuous production device of amino resin to achieve the effects of improving quality stability and optimizing environmental protection emission indicators

Active Publication Date: 2017-05-31
PUYANG GREEN FOAM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the shortcomings of the existing batch reaction method for producing amino resin, and provides a continuous production device and method for amino resin

Method used

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  • Device and method for continuous production of amino resin
  • Device and method for continuous production of amino resin
  • Device and method for continuous production of amino resin

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: as Figure 1~4As shown, a continuous production device for amino resins includes an automatic continuous batching device for raw materials 1, a primary screw reactor 2 and a combined reactor 3 for twin-screw cylindrical steel blocks connected in sequence, and the automatic continuous batching device for raw materials 1 includes an automatic batching device for solid raw materials. The continuous batching device and the liquid raw material automatic continuous batching device are equipped with a plurality of solid raw material automatic continuous batching devices according to the type of solid raw material. In this embodiment, there are 3 kinds of solid raw materials: melamine, paraformaldehyde and sodium carbonate. Correspondingly, a plurality of automatic continuous batching devices for liquid raw materials are provided. In this embodiment, there are two kinds of liquid raw materials, desalted water and ethylene glycol; the automatic continuous batching d...

Embodiment 2

[0035] Embodiment 2: as Figure 1~4 As shown, a continuous production device of amino resin,

[0036] Compared with embodiment 1, the difference is:

[0037] There are 4 automatic continuous batchers for solid raw materials equipped with melamine, paraformaldehyde, sodium formate and phthalic anhydride and 2 automatic continuous batchers for liquid raw materials with desalted water and phosphoric acid;

[0038] In this embodiment, the conveying spiral groove 211 is designed as a large-lead conveying spiral groove 211a;

[0039] The first heat exchange chamber 22 is the first automatic control heat exchange chamber, and the first heat exchange automatic control chamber corresponds to several conveying sections and several mixing sections of the primary screw 21 and is correspondingly designed into several sections, and each section is provided with a Automatically controlled heat exchanger for temperature control to ensure accurate and automatic control of reaction temperatur...

Embodiment 3

[0042] Embodiment 3: as Figure 1~4 As shown, a continuous production device of amino resin,

[0043] Compared with embodiment 2, the difference is:

[0044] There are 3 automatic continuous batchers for solid raw materials equipped with melamine, paraformaldehyde and sodium carbonate and 3 automatic continuous batchers for liquid raw materials with desalted water, sulfuric acid and hypophosphorous acid;

[0045] In the present embodiment, the conveying spiral groove 211 is designed as a large lead conveying spiral groove 211a. In the present embodiment, the maximum lead is 50mm (the flow rate is also related to the rotating speed, and the current rotating speed is 110 revolutions per minute, and the value of the flow rate is 3 kg / min. minutes of resin);

[0046] In this embodiment, the automatic continuous batching device 1 for raw materials, the primary screw reactor 2, and the twin-screw cylindrical steel block combined reactor 3 that are sequentially connected by pipelin...

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Abstract

The invention relates to a device and a method for continuous production of amino resin. The device comprises an automatic and continuous raw material distribution device, a primary screw reactor and a double-screw cylindrical steel block combined reactor which are sequentially communicated. The method comprises the following step of continuously running a reaction material in the device under the action of automatic temperature control. The device and the method have the advantages that the raw material is added at the front end of the automatic and continuous raw material distribution device; a resin product is continuously escaped out of the tail end of the double-screw cylindrical steel block combined reactor; the method is used for replacing an intermittent reaction kettle resin production method, the stable quality requirement of resin semi-finished products in a subsequent section is met, the emission of chemical components in the macromolecular synthesis reaction of the traditional device is prohibited, and the defects of large viscosity difference, poor quality stability, wide molecular distribution and the like of produced resin in a traditional reaction kettle intermittent mode are overcome.

Description

technical field [0001] The invention relates to the technical field of amino resin production, in particular to a continuous production device and method for amino resin. Background technique [0002] Amino resin is a general term for resins formed by polycondensation of compounds containing amino groups and formaldehyde. Important amino resins include urea-formaldehyde resins, melamine-formaldehyde resins and aniline-formaldehyde resins. The production of this type of resin has been completed by traditional batch reactors. The quality of each batch of resins has changed over time due to batch production, and various deficiencies such as wide molecular weight distribution. For melamine formaldehyde resin, the quality change It restricts the quality stability of further generating melamine foam plastics from melamine formaldehyde resin; and the reaction conditions of batch reactors are not easy to control, and there are more waste water and waste gas, thus putting forward con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G12/00
CPCC08G12/00
Inventor 张霖陈言胜魏兰军蒋凡顺刘军法李慧霞陈永达孙伟李岳站王菲王红春
Owner PUYANG GREEN FOAM CO LTD
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