Wet granulation process of electric jade powder

A technology of wet granulation and electric jade powder, which is applied in the field of wet granulation technology of electric jade powder, can solve the problems of not meeting industry standards, poor strength, easy to fall off, etc., to ensure that gloss and fluidity do not occur Effect of changing and guaranteeing purity

Active Publication Date: 2017-12-29
温州炫邦新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current electric jade powder powder in the domestic market can only meet the needs of urea-formaldehyde mold products with a small surface area. Products made of electric jade powder powder with a large surface area often have poor strength and are easy to fall off, far below the industry standard. Therefore, it is only suitable for urea-formaldehyde mold products with small surface area such as switch panels.
[0003] Electric jade powder is a substance with high viscosity. It is easy to stick to the machine during the granulation process, and then resin vulcanization impurities appear, which will affect the entire granulation process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation before production:

[0024] 1. No. 1 shotcrete configuration:

[0025] Formula 4.9g formaldehyde, 2.6g urea, 2.1g urotropine, dilute with 3.4kg neutral distilled water at 60°C to form No. 1 solution slurry, set the air pressure in the spray tank to 0.3mpa;

[0026] 2. No. 2 shotcrete configuration:

[0027] Formula 2.5g formaldehyde, 1.3g urea, 1.0g urotropine, dilute with 2.2kg neutral distilled water at 60°C to form No. 2 solution slurry, and set the air pressure in the spray tank to 0.3mpa.

[0028] Step 1: Preliminary Granulation Procedure

[0029] Pour A kilogram of electric jade powder into the granulator, set the motor speed of the stirring paddle to 300 rpm, and set the motor speed of the granulating knife to 500 rpm. The powder is in a state of uniform stirring, and the running time is 30 seconds.

[0030] After the 31st second, start the No. 1 spraying slurry, spray the No. 1 slurry into the granulator, and set the stirring blade motor speed to ...

Embodiment 2

[0051] Preparation before production:

[0052] 1. No. 1 shotcrete configuration:

[0053] Formula 5.0g formaldehyde, 2.7g urea, 2.1g urotropine, dilute with 3.4kg neutral distilled water at 60°C to form No. 1 solution slurry, set the air pressure in the spray tank to 0.3mpa;

[0054] 2. No. 2 shotcrete configuration:

[0055] Formula 2.6g formaldehyde, 1.4g urea, 1.0g urotropine, dilute with 2.2kg neutral distilled water at 60°C to form No. 2 solution slurry, and set the air pressure in the spray tank to 0.3mpa.

[0056] Step 1: Preliminary Granulation Procedure

[0057] Pour 85' kg of electric jade powder into the granulator, set the stirring blade motor speed to 300 rpm, set the granulating knife motor speed to 500 rpm, transfer the powder to a state of uniform stirring, and run for 30 seconds.

[0058] After the 31st second, start the No. 1 spraying slurry, spray the No. 1 slurry into the granulator, and set the stirring blade motor speed to 1500 revolutions per minute, ...

Embodiment 3

[0079] Preparation before production:

[0080] 1. No. 1 shotcrete configuration:

[0081] Formula 5.4g formaldehyde, 2.9g urea, 2.2g urotropine, dilute with 3.7kg neutral distilled water at 60°C to form No. 1 solution slurry, set the air pressure in the spray tank to 0.3mpa;

[0082] 2. No. 2 shotcrete configuration:

[0083] Formula 2.7g formaldehyde, 1.5g urea, 1.2g urotropine, dilute with 2.4kg neutral distilled water at 60°C to form No. 2 solution slurry, and set the air pressure in the spray tank to 0.3mpa.

[0084] Step 1: Preliminary Granulation Procedure

[0085] Pour 95kg of electric jade powder into the granulator, set the motor speed of the stirring paddle to 300 rpm, and set the motor speed of the granulator knife to 500 rpm. The powder is in a state of uniform stirring, and the running time is 30 seconds.

[0086] After the 31st second, start the No. 1 spraying slurry, spray the No. 1 slurry into the granulator, and set the stirring blade motor speed to 1500 re...

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Abstract

The invention relates to a wet granulation technology of urea-formaldehyde resin. The technology comprises the following steps: 1, carrying out primary granulation: pouring urea-formaldehyde resin powder to a granulator, starting first slurry spraying to spray a first slurry to the granulator, allowing a stirring paddle and a granulating knife to be in a rotating state simultaneously, starting second slurry spraying to spray a second slurry to the granulator, and discharging obtained granules, wherein the first slurry is prepared through diluting formaldehyde, urea and urotropine with neutral distilled water, and the second slurry is prepared through diluting formaldehyde, urea and urotropine with neutral distilled water; 2, refining: pouring the granules produced in the granulator to an oscillating granulator, scattering agglomerated granules through the oscillating granulator, and adding zinc stearate powder in the scattering process; and 3, drying the obtained granules, and discharging the dried granules. The technology adopting the above technical scheme guarantees cleanness and no impurities of the granules, and also can guarantee no change of the fluidity of the urea-formaldehyde resin.

Description

technical field [0001] The invention relates to a wet granulation process of electric jade powder. Background technique [0002] Urea-formaldehyde resin, commonly known as electric jade powder. The current electric jade powder powder in the domestic market can only meet the needs of urea-formaldehyde mold products with a small surface area. Products made of electric jade powder powder with a large surface area often have poor strength and are easy to fall off, far below the industry standard. Therefore, it is only suitable for urea-formaldehyde mold products with small surface areas such as switch panels. [0003] Dianyu powder is a highly viscous substance, it is easy to stick to the machine during the granulation process, and then resin vulcanization impurities appear, thus affecting the entire granulation process. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a wet granulation proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B9/00
CPCB29B9/00
Inventor 张尚坤
Owner 温州炫邦新材料有限公司
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