Coating industry in the grinding and dispersing equipment are what

In the paint ink industry in a lot of grinding and dispersion equipment, the application is more horizontal, vertical, ball mill, three roll machine, basket, each has its own characteristics, and now the air flow crusher has become the first choice of the powder coating industry.

The sand mill volume is small, takes up the space area is small, may continuously the high speed disperses, the efficiency is high, the structure is simple, the operation is convenient, at present in the paint profession application is most widespread, the shortcoming is the change color difficulty, the flexibility is not strong. At present, the sand mill has been developed from open type to closed type, which can minimize the volatilization of materials in the production process, and at the same time can be no more than 0. Under 3Mpa pressure with pressure operation, pressure operation can adapt to high thixotropy and poor liquidity of the paste, at the same time can increase the content of pigment in the paste, further improve the dispersion efficiency.

The difference between horizontal sand grinder and vertical sand grinder is that horizontal sand grinder has larger sand loading capacity, higher grinding efficiency, and at the same time, it is relatively convenient to remove and wash. At present, the proportion of closed horizontal sand grinder is gradually increased in the coating industry.

Basket-type sand mill is a new type sand mill developed in recent years. It is used to grind paint materials into mixing barrels, and to grind and disperse the basket containing grinding medium and mixing knife deep into the paint. Its features are:

1, suitable for small batch, variety of product operations;

2, paint pre-mixing, grinding dispersion and coating can be completed in the same mixing tank. Disadvantage is dispersive efficiency is general lower, dispersive time is longer. Therefore, it is very suitable for the preparation of color paste for small batch products.

The ball mill is an ancient dispersing device. It is to put porcelain beads or pebbles into a steel grinding cylinder as the grinding medium, and drive the movement of the grinding medium through the rotating movement of the cylinder, and realize the dispersion of pigments through impact, shear and other effects. It is also the advantages of pre-mixed paint, grinding dispersion can be achieved in the same tank, at the same time can achieve closed production, it is easy to return thick pigment (such as, iron blue, etc.) dispersion has a good effect. The disadvantage is that the dispersion efficiency is very low, and each batch of paint is not easy to put clean, color change is difficult,

Noise is very big, can not process high viscosity paste. In the past, it has been widely used in high-grade solvent-based products. However, due to its many disadvantages and the continuous improvement of the preparation technology of sand mill, its application scope in the coating industry is becoming less and less.

The three-roller machine is composed of three steel rollers. Driven by the motor, the front and rear rollers rotate forward, and the middle roll rolls backward. The paint is put into the middle of the rollers, and the gap between the rollers is used to realize the shear and dispersion of paint. Characteristics of the three-roller machine shear force is large, very suitable for high viscosity paint production, the disadvantage is not continuous production, and production is open type, the general material volatile, manual labor intensity, the current application is more and more limited.

Airflow crusher: the machine is composed of crushing main machine, classifier, cyclone separator, pulse dust collector and so on. Material is fed into the crushing chamber, inflate the mixed material by high-speed airflow mutual collision and friction and crushing, grinding fineness of adjustable sizing knife and graded plate distance to achieve the required fineness, the crushed material is entered into the cyclone separator, centrifugal force and the role of induced draft fan and then, through the fan air discharging, dust into the impulse precipitator, recycled after anti-static dust bag filter. Designed according to "GMP" standard, the whole machine can be made of carbon steel machine stainless steel material.

Equipment features:

1. The particle size range is finer than ordinary mechanical grinding. The high-speed mechanical impact grinder with built-in efficient turbine classifier can make qualified fine powder be discharged immediately after grinding to avoid over-grinding. It can produce products with steep particle size distribution curve, and the product fineness can be adjusted within the range of d97=3 ~ 74 m.

2. The crushing chamber is equipped with an automatic slag discharge device, which can automatically remove the difficult-to-grind particles and impurities in the materials.

3. It can shatter and disperse the aggregate materials.

4, large flow of air means cooling grinding, can be used for the processing of heat-sensitive materials, no deposition problems.

5, completely closed negative pressure operation, no dust pollution.

6, grinding grading particle size can achieve 0.1~75 m arbitrary adjustable;

7, frequency conversion control, fineness is stable, can work continuously;

8, quick installation connection, easy to disassemble, easy to clean, no dead Angle;

9, grinding process does not heat up, no impurities, low noise;

10, small area, beautiful appearance;

11, good sealing, no dust, small loss;

12, can be flexible to achieve airflow crushing, airflow classification, mechanical crushing in one;

13, horizontal high efficiency classifier rotor, up to 18,000 RPM;

14. Mobile mechanical crusher unit, extremely convenient for disassembly and assembly;

15, mechanical grinder can achieve all-ceramic;

16, can realize the inert gas circulation atmosphere, flammable and explosive material powder classification;

[sichuan zhongjin powder equipment co., LTD.] is an enterprise specializing in the design, development and manufacture of crushers. The company specializes in the production of air mill, impact mill, classifier; Airflow pulverizer classifier, ultrafine pulverizer impactor, inert gas pulverizer classifier, dust remover, horizontal disc pulverizer, jet pulverizer classifier, steam kinetic energy pulverizer and other ultrafine powder equipment. Welcome to visit our company.

Company website: www.yiliaopzh.cn