microporous
carbon bricks
Carbon brick raw materials including anthracite, coke and graphite, as well as asphalt, tar and anthracene oil binder. Anthracite less volatile, compact structure, the production of carbon brick as aggregate to it, join the metallurgical coke (coal tar) asphalt binder.
The production process of carbon bricks and other refractory bricks are similar, but it must be to prevent carbon oxidation in high temperature firing, calcination of raw materials and products must be in a reducing atmosphere. Anthracite Before using a roasting, to exclude the volatile matter, sulfur, moisture, and improve the volume stability of the anthracite, mechanical strength and oxidation resistance. Coke must first be dry, so as to avoid the moisture content is too high and cause molding difficulties and products to cracking during the firing process. Asphalt to be melted first, and dehydration, so that moisture is less than 0.2%, dehydration temperature should be 120 ~ 160 ℃.
Ingredient of the carbon brick is calcined granular anthracite as aggregate, its size depending on the size of the products: Large brick for 8 to 12 mm, small brick of 4 to 6 mm. The Anthracite about 60%. Coke powder by adding content with a particle size of less than 88 microns up to about 70%. Binder amount of blast furnace carbon brick is usually 15 to 20 percent. To prevent oxidation, brick firing, generally coke powder or coal protection packing. The firing temperature of 1300 ~ 1450 ° C, holding time of about 20 hours, with a total firing time of about 240 to 420 hours, cooled to 40 ~ 60 ° C kiln. Carbon brick, high temperature kiln, easy to burst into flames.
Carbon bricks have good thermal stability, low coefficient of thermal expansion, high temperature resistance, erosion of various acids, alkalis, salts and organic solvents, but easily oxidized in the oxidizing atmosphere.
Carbon bricks are widely used in metallurgical industry. The maximum amount of blast furnace carbon brick, blast furnace bottom and hearth carbon brick building. Carbon brick is also used for the aluminum reduction cell. In addition, widely used in the electroplating industry pickling tank, the plating bath, dissolving tank of the paper industry, chemical industry, reactor, storage tanks, petrochemical industry, autoclaves, etc.
microporous carbon bricks are high-temperature electric calcined anthracite as raw materials, abacus a baby bulk of additives to the temperature of city binder, basic top temperature roasting, finishing together.
Its capital backdrop of absorptive and has acceptable air permeability, anti-corrosion achievement of hot metal, acceptable for bang boiler address area.
Read more:microporous carbon bricks for sale
Carbon brick raw materials including anthracite, coke and graphite, as well as asphalt, tar and anthracene oil binder. Anthracite less volatile, compact structure, the production of carbon brick as aggregate to it, join the metallurgical coke (coal tar) asphalt binder.
The production process of carbon bricks and other refractory bricks are similar, but it must be to prevent carbon oxidation in high temperature firing, calcination of raw materials and products must be in a reducing atmosphere. Anthracite Before using a roasting, to exclude the volatile matter, sulfur, moisture, and improve the volume stability of the anthracite, mechanical strength and oxidation resistance. Coke must first be dry, so as to avoid the moisture content is too high and cause molding difficulties and products to cracking during the firing process. Asphalt to be melted first, and dehydration, so that moisture is less than 0.2%, dehydration temperature should be 120 ~ 160 ℃.
Ingredient of the carbon brick is calcined granular anthracite as aggregate, its size depending on the size of the products: Large brick for 8 to 12 mm, small brick of 4 to 6 mm. The Anthracite about 60%. Coke powder by adding content with a particle size of less than 88 microns up to about 70%. Binder amount of blast furnace carbon brick is usually 15 to 20 percent. To prevent oxidation, brick firing, generally coke powder or coal protection packing. The firing temperature of 1300 ~ 1450 ° C, holding time of about 20 hours, with a total firing time of about 240 to 420 hours, cooled to 40 ~ 60 ° C kiln. Carbon brick, high temperature kiln, easy to burst into flames.
Carbon bricks have good thermal stability, low coefficient of thermal expansion, high temperature resistance, erosion of various acids, alkalis, salts and organic solvents, but easily oxidized in the oxidizing atmosphere.
Carbon bricks are widely used in metallurgical industry. The maximum amount of blast furnace carbon brick, blast furnace bottom and hearth carbon brick building. Carbon brick is also used for the aluminum reduction cell. In addition, widely used in the electroplating industry pickling tank, the plating bath, dissolving tank of the paper industry, chemical industry, reactor, storage tanks, petrochemical industry, autoclaves, etc.
microporous carbon bricks are high-temperature electric calcined anthracite as raw materials, abacus a baby bulk of additives to the temperature of city binder, basic top temperature roasting, finishing together.
Its capital backdrop of absorptive and has acceptable air permeability, anti-corrosion achievement of hot metal, acceptable for bang boiler address area.
Read more:microporous carbon bricks for sale
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