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Q: What’s the working principle the wet sand mill?
A: The rotor component drives the Brownian motion of the grinding medium to disperse, shear and break the flowing slurry particles into nano particles.
Q: What’s the application field of wet sand mill?
A: Battery anode and cathode materials, conductive paste, metal oxide, paint and coatings, polishing liquid, flame retardant, printing and dyeing materials, paint ink, cosmetics, pharmaceutical industry, etc
Q: What’s the transmission form of wet sand mill?
A: Horizontal pulley drive, horizontal synchronous direct drive, vertical pulley drive, vertical synchronous direct drive drive.
Q: What are the common types of rotor ?
A: Turbine, rod pin, platter, disc and so on.
Q: What are the advantages and disadvantages of different rotor?
A: Turbine rotor will decrease zirconium ball wear rate, and particle size curve is single; but cost is high, efficiency is not to high; for rod pin motor: low cost, high efficiency; Zirconium ball wear rate is relatively high, particle size curve is easy to tail; For platter motor: low energy consumption, moderate efficiency, moderate zirconium ball wear, low cost; Low linear speed, not suitable for grinding particle size below 350nm; Disc motor : Maximum flow, high viscosity( 50,000-80,000 cp); High cost, low grinding efficiency, usually used to disperse high-viscosity products;
Q: What are the common rotor materials?
A: Yttrium stabilized zirconia ceramics, stainless steel lined with polyurethane, wear-resistant steel.
Q: What are the discharge methods of sand mill?
A: Axle discharge, rear end cover discharge.
Q: What are the cooling systems of the sand mill?
A: Bearing grease cooling, seal circulating liquid cooling, material coil cooling, material plate heat exchanger cooling, casing jacket cooling.
Q: What is the common line speed of the sander?
A: Usually 12-17 m/s.
Q: What are the advantages of HKZN sand mills?
A: HKZN has various series of products, the customer base is persuasive; and won various certifications and qualifications; the company has strong production line design ability and advanced equipment design concept, good after-sales service and on-time delivery guarantee; HKZN has excellent product quality brings stable operation of equipment and production line;
Q: What kind of material used in the electric battery anode ?
A: Lithium iron phosphate, lithium manganese iron phosphate, sodium iron phosphate, sodium iron sulfate, etc
Q: What is the common discharge particle size? Which model does it fit best?
A: Discharge particle size: 0.2-0.5um Corresponding model: 1-1000L, turbine/rod pin/platter model.
Q: What is the corresponding material in the field of battery conductive paste?
A: Carbon nano tubes, graphene, etc.
Q: What material does the negative battery field?
A: Silica powder
Q: How to calculate the filling amount of zirconium ball?
A: M=L*K*ρ,
M: Zirconium ball filling weight (KG)
L: Net volume of equipment (L)
K: Zirconium ball filling factor (65%-75%)
ρ: zirconium ball packing density (3.6-3.7KG/L)
Q: what’s calculation method of conventional zirconium ball size selection and discharge particle size?
A: Zirconium ball size ≤ discharge particle size *1000
Q: How often is the zirconium ball changed?
A:Usually Japan Toray zirconium ball can use for 3-5 years, other zirconium ball can use for 1-3 years;
Q: What are the reasons for the decline in the production efficiency of the sand mill?
A: zirconium ball weight decreased, the equipment discharge temperature is too high, equipment rotor parts wear, slurry process changes
Q: What’s the after-sales service like overseas?
A: After sales engineer will respond within 2 hours after receiving the fault repair report and if necessary arrive at the scene of Party A within 48 hours after receiving the notice of customer; also remote operation and solution will also carry out at the same time if remote help is need.