Heat insolation is irrigated build expecting is the indeterminate form that is used at heat preservation thermal insulation fireproof material, product value quotes according to material character with density, kiln furnace heat preservation needs to have logical choice according to temperature design, if heat preservation brick, heat preservation is pouring,cotton of makings, heat preservation is waited a moment.
Pledge gently fireproof and pouring expecting is a kind of water hard pouring makings, apply to thermal insulation of all sorts of kiln furnace liner, flue of furnace of kiln of float law glass is sealed and pouring makings, have coefficient of thermal conductivity low, performance of heat preservation heat preservation is good, line contractility is small, pouring integral sex and dry sex are good wait for a characteristic. Heat preservation pledges gently pouring expect its construction is simple, cost is low. Current, wide already in the industry such as metallurgy, mechanical, electric power, chemical industry, oil application is mixed at industrial kiln furnace industry heats up labor facilities, more energy-saving than general and fireproof material 20% above, already was chosen generally by broad user, also begin to use adiabatic and fireproof data in side of adventitious light simple adiabatic and fireproof stuff.
Heat insolation is irrigated build makings but pouring makings of shaping small qualitative fireproof part is by powder makings, binder and additive are comprised, its mixture is light qualitative heat insolation fireproof and pouring makings. Because pledge gently pouring the bulk density of makings is small, thermal conductivity is low, also call heat insolation so fireproof and pouring makings. Heat insolation is fireproof and pouring expect by bulk density can be divided to pledge gently partly fireproof and pouring makings, its bulk density is 1.0~1.8g/cm3; Pledge gently fireproof and pouring makings, its bulk density is 0.4~1.0g/cm3; Super- pledge gently fireproof and pouring makings. Cubage density <0.4g/m3.
Insulation material cent is: 1, organic heat-insulating material, 2, inorganic heat-insulating material, 3, complex heat-insulating material. Light-duty and adiabatic brick is become in the fire after a few special material are being joined in firebrick production process. Double its porosity is common firebrick, its density compares coessential firebrick low 0.5-7 times. Hot conductibility is small, because this can use the thermal insulation of the kiln that make oven or liner, in order to reduce hot loss; To the furnace kiln of intermittent exercise, can reduce the accumulation of heat of furnace wall and heat loss due to radiation 80% .
What use data according to place is different, brick of light qualitative heat preservation basically has brick of light qualitative clay, light qualitative tall aluminous brick, light qualitative silica brick to wait. The method that produces light qualitative firebrick basically has 3 kinds: (Law of feed in raw material of 1) combustible material, join easy flaming combustible in burden namely, wait like wood chip, anxious pink, when the brick is firing, combustible by burn-up, a lot of hole leave inside the brick. This is commonly used method; (2) bubble law, add blowing agent in burden namely, be like person colophony black, next its firing and poriferous goods; (3) chemical law, add some kind of substance in burden, produce bubbly and chemical reaction thereby. If dolomite or square magnesian stone add gesso, with rare vitriolic make foaming agent, produce many foam, instantly pouring shape, stoving fire.
Cotton of aluminous silicon heat preservation is will aluminous aluminous melt hind, the heat preservation that becomes through eject law or centrifugal legal system is fireproof material. According to fireproof raw material different, cent of cotton of siliceous aluminous heat preservation is microtherm, medium gentle high temperature 3 kinds of heat preservation are fireproof material, average use temperature is unfavorable more than 1400 ℃ . Silicon aluminium pledges heat preservation cotton is used extensively at fireproof heat preservation, in heat preservation respect it can use as the place such as the liner material of all sorts of kiln furnace, sealed material and stuff of high temperature stuff.
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, 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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