sand mill experiment

  • 60L High Efficiency Horizontal Sander

    The working principle of vertical grinding machine: the feed pump is installed in the body, the material is fed into the cylinder body from the bottom valve, and the rotating of the dispersing disc is driven by the dispersing axis to make the grinding ball move sharply. The material is impacted and sheared by the grinding medium by using strong stirring and increasing the shear force of the ball. Application of vertical sand grinder: wet sand grinding and dispersing equipment for building coatings, alkyd resins, dyes, printing ink, pesticides, coatings industrial coatings, rust-proof primers, road marking paints, paper-making, leather, cosmetics and other chemical industries. Vertical grinder features: simple operation, high continuous production efficiency, convenient color change, easy cleaning. According to the user's requirements, the inner cylinder and the dispersing disc of vertical grinder can be made into carbon steel, stainless steel, lined polyurethane and other materials for different materials, and the dispersing disc can also be made into engineering plastic materials.

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  • Stainless Steel Mixing Tank

    Horizontal sand grinder and vertical sand grinder are different. Horizontal sand grinder has larger sand loading capacity, higher grinding efficiency and relatively convenient removal and washing. At present, the proportion of closed horizontal sand grinder used in paint industry is gradually increasing. Basket grinder is a new type of grinder developed in recent years. It places the abrasive paint in the mixing barrel, grinds and disperses the basket with abrasive medium and agitation into the paint. The equipment is mainly suitable for small batch, multi-product operation, pre-mixing of paint, grinding and dispersing and coating in the same mixing tank. When using the sand mill to produce Yao preparations, some problems have to be avoided. For example, during the grinding process, the viscosity increases and the foam is excessive. After grinding, the viscosity of the system is large and the heat is stored and pasted. Before formulating effective preventive measures, we should first find the root cause of the problem. If the viscosity increases during grinding, it may be because the dispersant is not easy to deform, adsorb fastly and fall off from the surface of particles, which makes the original Yao have low melting point and high boiling point substances. In this case, wetting and dispersing additives can be used to improve the adsorption fastness, the thickness of the adsorption layer, the lubrication between particles and the content of yao. Horizontal grinder with good sealing, heat dissipation and high production capacity, has been favored by more and more users in the industry. 1. Primary startup (commissioning): After the equipment is installed, it should be debugged. The specific steps are as follows: 1) Adding solvent or lubricant which is soluble with material to mechanical seal chamber of horizontal grinder. 2) Check whether the circuit of the equipment is consistent with the electrical wiring diagram. 3) Open the water supply valve and observe whether the water consumption meets the requirements. 4) Open the air supply valve. 5) Add grinding media: Open one or two sand-filling mouth caps on the top of the front end of the grinding cylinder block and add the screened grinding media. The filling quantity, particle size and material quality can be determined by reference to the recommendation or the user's requirements for product quality. 6) Adjust the control range of the instrument. 7) Start the main engine and feed pump, clean the cylinder and pipeline with water or solvent, and then carry out the belt operation. Feed rate of feed pump should be determined according to product quality requirements and the number of grinding cycles set.

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