Nano Sand Mill: New Nano Material Grinding Equipment
Nano Sand Mill
Nano sand mill is a new type of grinding equipment, mainly used in carbon nanotubes, nanomaterial pigments, nanocoatings, inks, inkjet inks, cosmetics, food, proteins, lithium batteries, functional ceramics, photovoltaic materials, and other fields.
Application: Paint, Adhesive, Battery, Pharmaceutical industry, Cosmetic
Nano sand mill adopts a high-precision double inner hole machine seal, which can apply the smallest grinding material. The raw material enters the grinding chamber from the top with the feeding pump. During the entire grinding process, the rod pin and the motor stator continue to collide strongly with the grinding material. Due to the characteristics of the grinding material, the material can be fully ground to the nanometer level. At the discharge port of the nano-sand mill, due to the difference in density, the grinding medium returns to the grinding chamber, but the material flows out of the grinding chamber through the gap separator under the pressure of the feed pump.
The main purpose of the nano-sand mill is to further grind and disperse the pre-dispersed slurry, and under the action of the grinding medium, the grinding fineness of the final material reaches the final demand state. Nano sand mill is composed of an upright sand holding cylinder, agitating shaft, and paint slurry conveying system. There are 8 to 10 dispersing discs evenly installed on the stirring shaft, which play the role of grading and dispersing.
An appropriate amount of dispersion media such as glass beads or zirconia beads is generally placed in the cylinder of the nano sand mill. Through the action of the grinding medium, the material can easily reach the nanometer level. When the material is fed into the cylinder from the bottom, it and the stirring shaft drive the dispersing disc to move at a high speed. The mixture of paint slurry and dispersing medium rotates between the two dispersing discs for high-speed turbulent flow while moving upwards, where the pigment particles are subjected to high-speed turbulence. Due to the high shearing action of the moving dispersing medium, the centrifugal force generated by the dispersing disc is quite high, which can reach 100 times the gravity (ie l00g, g is the acceleration of gravity), so the pigment particles are graded and dispersed between the dispersing discs.
There are many advantages of nano sand mill, mainly because of low labor intensity, users do not need to spend too much time and energy during operation, it has a super continuous action, the operating technical requirements are not as high as that of the three roll mill, and the maintenance is not as good as that of the three roll mill. Three roll mills are demanding; production efficiency is high, especially for easily dispersible pigments. The disadvantage is that it is not suitable for processing difficult-to-disperse pigments, it is difficult to change colors, and it is only suitable for slurries with lower viscosity.
Sand mills are divided into ordinary open type, vertical closed type, horizontal closed type, etc. Generally, architectural paint factories mostly use ordinary open type. Solvent-based coatings should use a closed sand mill.
Nanomaterials refer to materials that have at least one dimension of nanometer size (0.1-100 nanometers) or are composed of them as the basic unit of three-dimensional space, which corresponds to the size of 10-100 atoms tightly packed together.
Nanomaterials exhibit many peculiar properties, and their optical, thermal, electrical, magnetic, mechanical, and chemical properties are significantly different from those of large solids. Most nanomaterials are made chemically. The preparation of nanomaterials by mechanical milling has attracted extensive attention due to its low cost and mass production. Once there is a breakthrough in this field, the production of nanomaterials will enter a new stage.
The main motor of the nano-sand mill drives the dispersing shaft to move at high speed through the v-belt, and the dispersing disc on the dispersing shaft drives the grinding medium to move to generate friction and shear force to grind and disperse the material. Nano sand mill is suitable for the dispersion of various viscosity products and the grinding of nano-level materials. The machinery is mainly used in: Nanomaterials, paints and printing inks, high-quality automotive paints, pigments and dyes, pesticides, papermaking, nanoscale grinding, pharmaceuticals, and other industries, usually the processing fineness can reach below 100 nanometers.
Nano sand mill composition
The motor is installed on the simple machine frame, and the energy transmission is ensured through the v-belt; the high-precision isolation gap has a self-cleaning function, and is suitable for grinding media with a particle size of 0.4~2mm; the horizontal nano-sand mill adopts double-end mechanical seals as pressure impedance device; conical grinding chamber gap stirrer, small processing area, can reduce product cross-contamination, easy to replace products; double cooling of rotor and stator; the control panel is integrally embedded in the machine frame, and all control keys are on it; white product will not be greyed out. The system has good sealing, extremely low wear, good heat dissipation, and high production capacity. The conical design of the grinding chamber makes the impact of the grinding beads the strongest at the feeding end, and the material is ground to a certain extent as soon as the material enters the grinding chamber, to obtain a stable and fine grinding effect.
Equipment such as nano-sand mills may be relatively unfamiliar to many people, but many industries are essential, such as nanomaterials, battery materials, inkjet inks, ceramic color glazes, nano alumina, nano it is widely used in mass production of zirconia, pharmaceuticals, coatings and inks and other material industries.
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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.
Sand mills, also known as bead mills or media mills, are mechanical devices used in the field of grinding and dispersion.
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.
Vertical sand mills and horizontal sand mills are commonly used equipment for grinding in paint, coating, ink, and other industries. They all rely on the high-speed rotation between the grinding medium and the material for grinding work.
The sand grinding machine, also known as the pearl grinding machine, is used to grind the paint of the pigment with hard wear -resistant beads, glass balls, etc. in a closed cavity.
Sand mills are mainly used in industrial fields such as paint coatings, cosmetics, food, daily chemicals, dyes, inks, pharmaceuticals, magnetic recording materials, ferrites, photosensitive films, oxide ceramics, and new energy.
Sand mill is a kind of high-efficiency grinding equipment, which is mainly used for grinding materials, and the particle size of the final grinding can reach the nanometer level.