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Device for continuous production of melamine-formaldehyde resin

A technology of melamine and formaldehyde resin, applied in the directions of transportation and packaging, mixers, mixer accessories, etc., can solve the problems of discontinuity in the preparation process of melamine resin, and achieve the effects of good product quality, less land occupation, and short production cycle.

Active Publication Date: 2016-11-16
郑州峰泰纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a device for continuously producing melamine formaldehyde resin, which solves the problem of discontinuous production process of existing melamine resin

Method used

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  • Device for continuous production of melamine-formaldehyde resin
  • Device for continuous production of melamine-formaldehyde resin

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Experimental program
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Embodiment 1

[0026] Such as figure 1 As shown, the present embodiment provides a device for continuous production of melamine formaldehyde resin, comprising a mixture silo 1, a material pump 2, a first screw machine 3, a static mixer 18 and a second screw machine 4 connected in sequence, and the mixture silo 1 is respectively connected with the melamine high level bin 5 and the paraformaldehyde high level bin 6, the feeding place of the first screw machine 3 is provided with a lye feed port 7, and the end of the first screw is provided with an auxiliary material feed port 8. When adopting this embodiment to prepare melamine resin, melamine is powder, paraformaldehyde is granular material, and the solvent of reaction is the lye added at the feeding place of the first screw machine 3, wherein, lye is that the mass ratio is 0.2 ~0.5% aqueous solution of organic or inorganic base. The auxiliary materials added are one or more inorganic sodium salts. With the equipment of this embodiment, pow...

Embodiment 2

[0034] Such as figure 2 As shown, the present embodiment provides a device for continuously producing melamine formaldehyde resin. In the present embodiment, the sixth jacket 15, the seventh jacket 16 and the eighth jacket 17 are respectively arranged outside the second screw machine, They are respectively connected to the mold temperature machine, the preset temperature of the mold temperature machine connected to the sixth jacket 15 is 100-90°C, and the preset temperature of the mold temperature machine 14 connected to the seventh jacket 17 is 90°C. ~80°C, the preset temperature of the mold temperature machine connected to the eighth jacket 18 is 80~70°C.

[0035] Other structures of the device for continuously producing melamine-formaldehyde resin in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a device for continuous production of melamine-formaldehyde resin, and belongs to the technical field of chemical equipments. The device comprises a mixture bin, a material pump, a first screw machine, a static mixer and a second screw machine which are connected in sequence, wherein the mixture bin is connected with a melamine high-order bin and a paraformaldehyde high-order bin respectively, an alkali liquor feed inlet is formed in the feed end of the first screw machine, and auxiliary material feed inlets are formed in the feed end, the middle end or the tail end of the first screw rod. The production device disclosed by the invention is high in utilization rate of raw materials, low in energy consumption, high in yield, free of three wastes (waste gases, waste water and waste residues) in the production process of the melamine-formaldehyde resin, and can continuously produce the melamine-formaldehyde resin with stable quality, and furthermore, melamine-formaldehyde resin products are good in quality.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a device for continuously producing melamine-formaldehyde resin. Background technique [0002] Melamine resin, also known as melamine-formaldehyde resin, is a polymer obtained by the reaction of melamine and formaldehyde. A cross-linking reaction occurs during processing and molding, and the product is an infusible thermosetting resin. It is customary to call it amino resin together with urea-formaldehyde resin. [0003] Melamine resin can be made into melamine formaldehyde foam after foaming reaction. This foam is non-flammable, water-resistant, heat-resistant, aging-resistant, arc-resistant, chemical-resistant, and has good insulation performance, gloss and mechanical strength. Good sound absorption. Therefore, it is widely used in sound-absorbing and flame-retardant buildings, automobiles, aircraft carriers, submarines, etc. [0004] At present, the existing mel...

Claims

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Application Information

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IPC IPC(8): B01F13/10B01F15/06C08G12/32
CPCC08G12/32B01F33/823B01F33/821B01F33/834B01F35/92B01F2101/2805
Inventor 李洋洋左耀卫王永飞樊雪子李磊磊刘军飞付超峰
Owner 郑州峰泰纳米材料有限公司
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