bead mill factory supplier China

Sand mill, also known as bead mill, is a type of grinding and dispersing equipment that disperses powdered materials and liquid materials in solid-liquid phase.

A horizontal cylinder is axially inserted into the rotating shaft, and a number of grinding discs, rings or pins are radially installed on the rotating shaft. The cylinder is filled with grinding media with a particle size of 0.6-2 mm. The cylinder is equipped with a jacket, and cooling water is passed in the middle to absorb and drain away the heat generated during the grinding and dispersing process. The material is pumped into the cylinder, and the grinding medium is strongly stirred by the high-speed rotating grinding disc, and thrown along the disc to the cylinder wall and back, and the slurry flow is circulated between the discs, so that the solid material is gradually dispersed in the liquid material evenly.

The discharge method varies with the viscosity of the material. Generally, the suspension can be made to flow through the screen with slit-like holes, the width of the holes is 1/2-1/3 of the grinding media. grinding media, using sand, so called sand mill; and then using glass beads, so also called bead mill.

Now the grinding media used are: sand grains with rounded edges, beads made of various glass or wear-resistant materials, steel beads and steel chips, etc.

Maintenance of horizontal sand mill

1. When the dispersion disk has been worn or partially worn and needs to be replaced with new components, first move open the cylinder, then gradually remove the hexagonal screw and dispersion disk and bushing, and pay attention to the dispersion disk installed according to the original position when assembling (because the dispersion disk has size), so as to give full play to the efficiency and prolong the service life.

1. When changing the seal, the cylinder should be released first, dismantle the dispersion disk assembly and sieve ring device, then clean the shaft with solvent, when all parts are removed, it must be cleaned carefully, especially clean the moving ring and static ring to ensure that it is spotless. Reassemble in order after cleaning.

1. When the equipment is running, you can observe the circulation of the sliding fluid through the oil cup window, whether the oil pump supplies oil to lubricate the mechanical seal. If there is no oil in the oil cup window, it should be stopped in time, otherwise it will cause damage to the mechanical seal and cause the equipment not to work normally, and corresponding measures should be taken to overhaul.

1. The whole machine should be thoroughly cleaned and overhauled once in a year or so.

1. The pressure gauge exceeds the normal pressure, which proves that the machine is malfunctioning and the accumulated material in the machine is blocking the sieve ring, so it should stop working and remove the cylinder to clean the sieve ring.

What are the applications of horizontal sand mill?

• Food industry: cocoa, chocolate, nut butter, sauce, mayonnaise, seasoning, etc.

• Paint industry: ink, pigment, paste, filler, dye, carbon black.

• Chemical industry: pharmaceuticals, cosmetics, plant protection, detergents

• Mineral industry: high age clay (porcelain clay), ceramic mud, refractory clay.

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