Pledge fireproof material and general and fireproof material compare heat preservation heat insolation gently, weight is light, in-house and even cloth has small air hole, porosity is taller. Light qualitative heat-insulating material applies to the temperature limits of ℃ of 900 ℃ ~1650. Heat insolation of light qualitative heat preservation is fireproof material, the quantity of heat that can assure boiler setting be lost is fewer, fuel drops so that charge meets accordingly, light qualitative brick also means smaller harbour quantity of heat at the same time, because this litre of gentle refrigeration is faster, allow to accelerate periodic operation. Fireproof material applies to heat insolation of light qualitative heat preservation the temperature limits of ℃ of 900 ℃ ~1650. Item characteristics 1, rate of low heat conduction, low thermal capacitance, low matter content 2, high strenth, good heatproof shake performance, acid-proof alkaline atmosphere is corroded 3, limits of dimension precision tall application 1, material of all sorts of lining of industrial furnace hot side, be like: Annealing furnace, carbonization furnace, answer burner, oil refining heating furnace, splitting decomposition furnace, roller path kiln, channel kiln. 2, the heat-insulating material back line of all sorts of industry furnace. 3, reducing atmosphere furnace. Function of adiabatic and fireproof material and classifying adiabatic and fireproof material is to point to porosity low, heat conduction leads density of tall, bulk low fireproof stuff. Adiabatic and fireproof data says light simple fireproof stuff again. It includes adiabatic and refractory products, fireproof fiber and fireproof fiber. The feature of adiabatic and fireproof material is porosity tall, it is density of bulk of 40% ～ 85%; commonly low, general under 1.5g/cm3; thermal conductance low, general under K) of 1.0W(M · . It uses as the heat-insulating material of industrial kiln furnace, can reduce furnace kiln heat loss due to radiation, save the sources of energy, can reduce the weight of hot project facilities. Sex of caustic of intensity of machinery of adiabatic and fireproof material, wear-resisting and the aggressivity that fight broken bits is poorer, unfavorable be used at furnace kiln bearing structure and direct contact the place such as metal of slaggy, charging, melt. Heat insolation of adiabatic and refractory products is fireproof goods is to point to porosity not under the refractory products of 45% . The sort of adiabatic and refractory products is very much. Its classify a method to basically the following is plant: (1) is microtherm heat insolation by use temperature cent fireproof material (use temperature is 600 ～ 900 ° C) , medium lukewarm adiabatic and fireproof material (use temperature is 900 ～ 1200 ° C) and high temperature heat insolation are fireproof material (use temperature is more than 1200 ° C) . (2) is average light qualitative fireproof data by bulk density cent (bulk density is mixed for 0.4 ～ 1.0g/cm3) exceed low light simple fireproof stuff (bulk density under 0.4g/cm3) . (3) is divided by raw material to stick earthy, tall aluminium qualitative, silicon pledges and magnesium pledges wait for adiabatic and fireproof material. (4) joins law, bubble law, chemical law and porous material standard to wait for adiabatic and fireproof material to be lighted by production methods cent. (5) is boarding heat insolation by product figure cent refractory products and indeterminate form heat insolation are fireproof goods. Adiabatic and refractory products and compact and refractory products differ somewhat, main method has light add content law, bubble law, chemical law and porous material way: (1) is lighted add content way. This law is to will curium wood chip can light may sublimate accretion is put into pug. Mix equably, use crowded base law, half dry method or slop next pouring the law shapes, dry hind firing. Can light may sublimate accretion is in firing the burn-up in the process, leave empty hole, make adiabatic and fireproof product. (2) bubble law. This law is water agitate is added in putting foaming agent the machine that hit bubble and make petty even bubble, in joining bubble slop again, collective agitate becomes bubble slop, infuse model, along with model together dry, drawing of patterns, in ～ of 1320 ° C 1380 ° C(is opposite tall aluminous adiabatic firebrick) below firing, become product namely through machining plastic. (3) chemical law. It is the method that reaction of chemically of the benefit in making bricky technology produces gas and acquires a kind of perforated brick semifinished product. The chemical response that uses normally if carbonate and powder of acerbity, metal add acerbity, causticity alkaline wait with aluminium powder. The chemical response that can use is slower and can control, suffer bubble of mechanical trouble take offense to disappear all right namely when bend infuse model otherwise. If reaction is too sharp, if cross oxidation hydrogen and manganese dioxide,can join depressor. The reactant that sends angry bubble in the interfuse in slop of fine pink raw material acquires stable bubble mud, infuse model, dry hind firing. This legal system builds pure oxide heat insolation refractory products, its porosity can achieve 55% ～ 75% . (Standard of 4) porous material. This law is to use expand pearlite, expand the natural light qualitative raw material such as vermiculite and diatomite, all sorts of hollow balls that pass prefabricate are raw material, add certain bond, through mixing, shape, dry, and firing wait for working procedure and make adiabatic and fireproof product. Fireproof material occurrence craze, fall off, easy how to wear away to do? Want to solve a problem thoroughly, need to be dug from germ, the analysis gives real reason, flourish Cheng Naicai is engaged in be able to bear or endure service of timber production, research and development is old, provide contractor bag material, can solve all sorts of difficulty problems of liner of furnace of high temperature kiln, welcome broad new old friend to seek advice reach technical communication.
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