Instructions for use of vertical sand mill

Vertical Sand Mill

The vertical sand mill is a nano-sand mill whose grinding cylinder adopts a suspended structure, raw materials enter from the bottom and discharge from the top.

Application: Paint, Adhesive, Battery, Pharmaceutical industry, Cosmetic

The working principle of the vertical sand mill is mainly to convey the raw materials from the bottom of the grinding cylinder to the top through the feeding pump, and under the action of pressure difference and centrifugal force, the materials produce up-and-down convection in the grinding cylinder. The slurry is pressurized and high-speed rotating and impacted in the gap between the grinding beads to produce emulsification, dispersion, kneading, grinding and other effects, to quickly reach the required fineness.

During the use of vertical sand mills, users often encounter many operational obstacles. Sand mill manufacturers have developed a complete set of safety guidelines based on long-term user feedback.

Inspection before driving the vertical sand mill

1. The rotation direction of the main motor is in the direction indicated by the arrow of the main engine. When adjusting the rotation direction of the motor, must be carried out when the disperser is not installed.
2. Check whether the cooling is smooth.
3. The slack state of the V-belt at the main point is adjusted at the factory, and it needs to be readjusted to a suitable degree of tightness, and then checked and adjusted after a few days of operation.
4. Check whether the fasteners are fastened reliably.

Vertical sand mill start-up operation

1. Cylinder body, valves, and pipes are cleaned.
2. Put the material feeding pump into the barrel until the volume of the barrel is about one-third.
3. Add about half of the total amount of grinding medium from the top of the cylinder, and slightly move the spindle to mix the material with the grinding medium.
4. Add all the grinding media and install the divider. Note that the divider must be coaxial with the separation shaft.
5. Start the feeding pump, input the material, and start the main machine after the material is discharged on the top screen.
6. Feed pump speed selection.

sand mill

Vertical sand mill parking

1. When cleaning, the disperser can only rotate slightly and intermittently, because the dispersing disc and grinding medium are easily worn and damaged when they are running quickly in the cleaning liquid.
2. When the cylinder is moving, it is necessary to pay attention to safety to prevent accidents caused by falling.
3. After a long period of parking, the mesh around the screen may have been blocked by dried materials, so the screen should be cleaned with solvent or thinner before driving.

Operation attention of vertical sand mill

1. After parking for a long time, check whether the dispersing disk is stuck by the medium before starting the machine. If the coupling cannot rotate, use a pump to pump in a solvent. Restart after dissolving. Do not start forcibly to avoid damage to the friction lining. the
2. After parking for a long time, check whether there is skinned paint on the top screen before starting the machine. If there is, clean it with a solvent to avoid the screen from being blocked and causing the roof to fall. the
3. Once there is a “roof fall”. Stop immediately to clean the screen, place the slurry basin, adjust the speed of the slurry pump, and restart. Otherwise, the slurry may invade the main shaft bearing and cause bearing wear, or damage the slurry feeding pump.
4. It is strictly forbidden to start when there is no paint and grinding medium in the body. the
5. When cleaning the simplified body with a solvent, the disperser can only be rotated slightly and intermittently to avoid wear of the parts. the
6. When using new sand, it should be sieved to remove impurities and foreign matter. The sand used in the sand mill should be cleaned and sieved regularly and new sand should be added.
7. The observation window should be kept intact to prevent accidents caused by broken sand during the work of the sand mill.

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Guidelines For Sand Mill

The sand mill mainly uses friction, shearing, and collision as effective grinding methods. It is one of the grinding equipment currently applicable to a wide range of material particle sizes and has high grinding efficiency. The energy density per unit volume is large. The control system can complete the continuous grinding and continuous discharging of the slurry, which greatly improves the production efficiency of the sand mill. It has the advantages of high energy density, fine product granularity, small environmental pollution, simple equipment structure, and convenient maintenance.

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Instructions for use of vertical sand mill

The vertical sand mill is a nano-sand mill whose grinding cylinder adopts a suspended structure, raw materials enter from the bottom and discharge from the top.

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