Crushing equipment that can be used for titanium dioxide crushing

Titanium dioxide, commonly known as titanium dioxide, has the molecular formula TiO2 and a relative molecular mass of 79.90 g/mol, and exists naturally in titanium ores such as titanium ore and rutile. Titanium dioxide is white powder solid, is an inert pigment, non-toxic, unaffected by climatic conditions, has strong covering power, and is the most widely used white pigment.

The pigment titanium dioxide has very strict requirements for particle size and particle size distribution. There are two types of industrial methods for crushing titanium dioxide: wet crushing and dry crushing. Wet crushing equipment include ball mills and sand mills, both in the medium of water; dry crushing equipment include Raymond mills, centrifugal mills, airflow crushers, etc. Crushing can also be used without a single grinding equipment, but by two or more grinding equipment used in combination, such as the calcined material first by the ring roller grinding and then by airflow crushing, but also with the same equipment for multiple grinding, such as the second airflow crushing. The following article introduces several commonly used grinding equipment.

1. Ball mill

Ball mill is divided into wet and dry two, in the early development of titanium dioxide industry, there is a long time using wet ball mill as the main crushing equipment, dry ball mill due to the poor crushing effect, generally only used in the primary crushing of calcined materials. Wet ball mill is generally used in conjunction with water separator. In order to improve the grinding efficiency, generally need to add dispersant.

2. Raymond Mill

Raymond mill is also called ring roller mill, and swing wheel type ring roller mill is used in titanium white industry. Raymond mill can be used to crush non-pigmented titanium dioxide products, and also used for primary crushing of pigmented titanium dioxide. Due to its internal separator, there are fewer coarse particles in the product compared to other dry mechanical mills (e.g. centrifugal mills). In addition, the material wear and tear pollution is less, the output is large and electricity is less, so it is commonly used abroad for primary crushing of anatase and rutile titanium dioxide and secondary crushing of anatase titanium dioxide. Our Raymond mill, for low consumption, low investment, environment friendly, small footprint and more efficient than traditional mills, it is widely used in metallurgy, building materials, chemical and mining fields to handle the powder. The series is used to grind non-combustible and non-explosive materials with Mohs hardness below 7 and humidity less than 6%, such as gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bentonite, bauxite, iron ore, etc. The final product changes from 613 microns to 44 microns. Through the function of separator and blower, it can meet the needs of different users.

3. High-speed centrifugal mill

High speed centrifugal mill is also called universal mill. Like Raymond mill, centrifugal mill is mainly used for crushing non-pigmented titanium dioxide or primary crushing of pigmented titanium dioxide.

4. Sand Mill

Sand mill is a wet stirring crushing equipment, can be used for the primary or secondary crushing of pigment-based titanium dioxide, is a kind of mortar can be separated from the titanium dioxide special crushing mill.

5. Airflow crusher

When the material needs to be crushed to sub-micron fineness, particle size distribution and narrow requirements, airflow crushing is one of the most important and effective means. Pigment titanium white ideal particle size requirements in 0.2um or so, the particle size distribution width requirements are very narrow, the general mechanical crushing can not do this, only through the airflow crushing to achieve this requirement. Another advantage is that the material crushing fashion can be mechanical force chemical treatment, which is extremely valuable to the titanium dioxide industry.

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