Ultrafine grinding technology development background
Such as ball mill, the hanging roller mill (also known as ring rolling grinder or put a wheel grinding machine, commonly known as Raymond), high-speed hammer mill, centrifugal mill, a variety of universal mill, vibration mill mechanical crushing device, in some cases, the lower hardness of brittle materials, but also can play a role of some degree of ultra-fine powder; or, for some materials in the form of aggregates or condensates can play some degree of ultrafine grinding. However, these mills on the product fineness, or on the product particle size distribution, or the purity of the product is difficult to achieve the above requirements. Type of grinding equipment is basically used for micro-crush Thus, the ultrafine grinding is the main purpose of the air jet mill technology came into being.
Grinding of MICA application of ultrafine grinding
MICA is an important non-metallic minerals, with a wide range of uses in industry. It is the alkali metal and metal water cut aluminum silicates of Kiss soil, chemical structural formula is: KAl2[AlSi30lo] (oH) 2, mica is a layered silicate mineral, and a good split, along the cleavage surface peeled into very thin slices. Muscovite MICA itself in addition to having excellent characteristics, it also has good sliding properties, coverage, such as adhesion characteristics. MICA crushed to what extent, flake, excellent flexibility, toughness. Superfine Muscovite luxury ideal filler for paints, coatings, cosmetics. More fine MICA powder, RADIUS-thickness ratio of the larger, stronger as a filling material their enhancement. As we all know maximum energy consumption, the least efficient at smashing jobs is concentrator unit process, enter the ultrafine grinding when grinding range, their energy consumption more efficient, less efficient. Therefore, how to improve grinding efficiency, improve grinding means more and more attention, I used in the grinding process of grinding AIDS and have access to good effect, has practical significance.
Ultrafine milling equipment in the application of rare earths
Monazite concentrate grinding to a certain size the size requirements for solid-liquid heterogeneous reaction, usually the smaller solid particles, particles larger than the surface area, liquid-solid two-phase contact with the more fully, the reaction speed is also faster if the particles too; less, two-phase contact area is small, not only affects the reaction rate, but due to the particle surface layer of insoluble hydroxide film, mineral particles more difficult to access with NaOH, resulting in lower decomposition rate by solid-liquid two-phase reaction dynamic equations can be seen, the reaction speed and concentrate particles is inversely proportional to the square of the radius, so concentrate particle size, a great influence on the reaction rate. through, over industrial practice, usually finely ground concentrate to 325 the following (a 0.044mm 95%:).
SBM ultrafine grinding mill successfully solve the environmental problems
Environmental problem of ultra-fine grinding is dust and noise pollution during wet milling. Dust problem in the ultra-fine grinding in the problems of dry dust, more or less food, the port of discharge and the seal of the fan, because of the size of fine particles, dust can easily fly to a place to seal. Approach to the solution is to maximize the use of negative pressure system, with good sealing and calibration of equipment fine grinding equipment, if necessary, install a system to collect dust in the crushing plant to ensure Cleaner Production Workshop, which pigments, dyes, fibers and toxic powder is extremely important.
Ultrafine dry grinding and wet
For the production of fine particles in the submicron range far, without exception, the mill media with agitation in a liquid phase is a success. Submicron particle size of 100 microns few can be obtained either wet or dry, while over the millimeter-sized particles are mainly produced by dry grinding. The choice between dry and wet milling is influenced by several factors. The state of the raw material and downstream use, such as powder or paste determined the grinding process in many cases. Other topics such as the fineness of the product, the dispersion of chemical reactivity hazards and should be considered
SBM ultrafine mill in India
A mining company in India intends to produce calcium carbonate powder with a fineness of 5-10 microns; required capacity is 1.0 tonne per hour. They had a mill at Raymond, who can not meet their desired fineness. Size of the stone entrance is 12 "-14". They have a primary 16 "x 10" jaw crusher. Based on the client's situation, we recommended comprehensive XZM221 Ultrafine mill for their solution. The mill has been installed since 2009 and is in perfect condition in India today.
SBM SCM Ultrafine Mill for cocoa powder in Indonesia
SBM SCM Series provides professionals milling machine cocoa powder, yield 10 to 15 kg, if our MTM series milling machines, production will be able to reach 30 kg or more, our products have been popular in Indonesia and other countries.
A mining company in Indonesia plans to produce powdered calcium carbonate with a fineness of 5-10 microns; required capacity is 1.0 tonne per hour. They had a mill at Raymond, who can not meet their desired fineness. Size of the stone entrance is 12 "-14". They have a primary 16 "x 10" jaw crusher. Based on the client's situation, we recommended comprehensive SCM221 Ultrafine mill for their solution. The mill has been installed since 2009 and is in perfect condition today in Indonesia.
SCM Ultrafine Mill
Ultrafine mill (also called SUPER THIN GRINDING MILL) works to grind fine powder and micro powder. For almost 30 years, SBM has being specializing in all facets of grinding mill design and maintenance. Especially to SCM series ultrafine mill, it’s growing more and more popular with its reliable technology and perfect after-sale services.