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Rotary kiln is a kind of heat treatment device that uses extensively at many industries, the option that its use domain and fireproof data is crucial to its efficiency and service life. It is about the application of rotary kiln the domain reachs his below the detailed introduction of fireproof material.
The applied domain of rotary kiln
Cement industry: Clinker to calcine: Rotary kiln basically is used at the high temperature to calcine of the raw material such as limestone, clay in cement production, generate cement grog. White cement production: Use at producing white cement, condition of its to calcine and raw material deserve to compare differ somewhat.
Metallurgical industry: Iron ore ball is round: Rotary kiln is used at making material of iron ore pink ball group, go further undertake blast furnace puddling. Ferronickel smelt: Those who be used at nickel mine is dry with reductive process. Smelt of zinc, lead: Use at the roast of vulcanization zinc mine, vulcanization lead mine.
Chemical industry: Lime production: Become limestone to calcine lime. Alumina production: Bauxite undertakes roast in rotary kiln, in order to facilitate follow-up alumina is extracted.
Environmental protection industry: Litter processing: Burn harmful litter with Yu Fen, wait like flotsam of medical treatment trash, chemical industry. Mud burns: Dispose municipal sludge, reduce its bulk and harmful material. Pottery and porcelain and fireproof data industry:
Ceramic is firing: Ceramic has high temperature in rotary kiln firing. Fireproof material to calcine: Produce the material such as high temperature firebrick.
Tall aluminous brick
The fireproof material of rotary kiln is fireproof material is having crucial effect in rotary kiln, its are main the function is protection kiln body, prolong equipment life, improve thermal efficiency. The kiln with different basis with application, the choice of fireproof material differs somewhat, basically have:
1, tall aluminous brick; 2, low cement is pouring makings; 3, corundum Mo Laishi is pouring expect / prefabricated component; 4, brick of magnalium pointed spar; 5, phosphatic wear-resisting brick; 6, brick of pointed spar of magnesian iron aluminium; 7, chromic corundum brick;
Fireproof material is phyletic
Alkalescent: Magnesian chromic brick: Have good high temperature resistant and fight chemistry to erode ability, commonly used at cement kiln. Magnesian calcic brick: Fight alkalescent gas to erode ability strong, commonly used at cement kiln firing belt.
Acidity: Silica brick: High temperature resistant, acid-proof sex is eroded, those who apply to acidity charging is firing.
Neuter: Aluminous aluminous brick: The volume that contain aluminium is high, high temperature resistant with the corrode that fight broken bits, use extensively at cement kiln, limekiln to wait. Zirconium corundum brick: Have performance of good high temperature resistant, heatproof shake, apply to the area with temperature larger wave motion.
Special type: Carborundum brick: Tall wearability and heatproof shake sex, apply to the area that needs tall wear-resisting, if kiln end, warm-up is taken,wait. Mo Laishi brick: Have good heatproof shake gender and fight chemistry to erode ability, apply to high temperature area.
The quality of use note construction of fireproof material: The construction quality of fireproof material affects its service life and result directly, should ensure build by laying bricks or stones is built level off, close together. Warm-up and roast: The fireproof material of new setup needs to undertake warm-up is mixed roast, prevent to material expands because of heat and produce crackle. Check regularly and safeguard: Examine fireproof data regularly wear away and attaint circumstance, be repaired in time and change, with assuring rotary kiln move normally. Anyhow, rotary kiln has wide application in each industrial domains, choose and safeguard normal to assuring its stability of fireproof material to move crucial. Diverse craft demand and working requirement decided different and fireproof material use, science chooses reasonably and use fireproof material to be able to improve the moving efficiency of rotary kiln and service life significantly.
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