Furnace of kiln of TOP fireproof material applies technical channel begin lecturing, what share to everybody today is the relevant knowledge about insulation material.
1, the hole rate of the compression intensity of brick of light qualitative heat preservation and use temperature limits as a result of brick of light heat preservation is high, intensity is general and inferior, do not bear normally the load in use process, get the protection of compact firebrick lining. Still, to prevent to carry the attaint with construction process, need proper strength. Below certain circumstance, brick of light heat preservation contacts blaze and heat vital energy directly, the load with bear certain. Below this kind of circumstance, the intensity of fireproof material mixes heat preservation it is important to fight air current to pound ability to become. Closely related the intensity of brick of light heat preservation and bulk density, intensity increases along with the addition of bulk density commonly. What should notice is, constituent structure type has very big effect to intensity. When bulk density is identical, solid photograph is successive data strength is apparent taller, gas phase is successive data strength is inferior. For example, the intensity of the brick of light heat preservation that bubble law produces should be used can light data standard production. Because brick of light qualitative heat preservation is stomatic big, bigger than the surface, in bear (be like self-prossessed) easy systole is out of shape below action, reduce heat preservation performance. Accordingly, the bulk of brick of light qualitative heat preservation and appearance need to keep stable in using a process for a long time. That is to say, it needs good bulk stability. Otherwise, contractive meeting brings about structure of body of heater to be out of shape with crackle, increase heat loss due to radiation. Accordingly, hear resistance is the main index of brick of light qualitative heat preservation. The hear resistance of brick of light qualitative heat preservation (allow to use temperature) do not depend on normally its are fireproof quality, and basically depend on its resistance heats the contractive metabolic ability of generation. On international, the use temperature of brick of light qualitative heat preservation is used commonly burn systole to be less than the temperature of 2% again. Next graphs showed the use temperature range of bricks of all sorts of light qualitative heat preservation. To the insulation material of same breed, use temperature rises as the addition of bulk density commonly. Apparent, because the union of solid photograph grain is mixed continuously relatively,this is firm, because this can maintain taller bulk stability.
2, when the method of brick of production heat preservation and the fireproof heat-insulation layer that blaze contacts is creating heat preservation brick and the fireproof heat-insulation layer that blaze contacts, commonly used, convenient method is bleb law and combustion additive law. Have aeriform infuse slop two kinds of methods: 1. Enter air machine suspension fluid first, stabilize the bleb in slop with stabilizing agent next; 2. Foaming agent is added in suspension fluid, gas produces after interaction, make slop produces poriferous construction, poriferous structure is stabilized with stabilizing agent after. To save the empty bleb in slop, must reduce the exterior pulling force of suspension fluid, because this adds foaming agent normally. Join in slop a large number of but the blame plasticity material of imbibe, be like clinker or the crystal that contain water of many to hydrate, in order to stabilize bubble. To make slop fleeciness, add carbonic acid body, acid or the reagent such as aluminous, metal in suspension fluid, pass its chemical reaction generates bubble. To achieve this one goal, dolomite and vitriolic often be used at abroad, think they are cheap industrial raw material. Good material of half water gesso and other water is used as stabilizing agent. After the slop of heat preservation brick is caky rapid and dry with combustion. Fire tastes course machining, have wants form and measure.
3, do not know brick of light qualitative heat preservation how the service life of construction industry kiln basically depends on the service life of fireproof material liner, liner is made by firebrick. Fireproof irrigate build material and brick of light qualitative heat preservation. Economic performance affects the put oneself in another's position of build by laying bricks or stones of kiln directly investment cost. Character of service. Thermal efficiency. Accordingly, the characteristic that chooses brick of light qualitative heat preservation is: (The function of 1) kiln furnace and hot project are characteristic. If kiln furnace clearance works, should choose the material with small thermal capacity. (2) data security uses temperature. Heat conduction system. High temperature intensity. Chemical stability. (3) service life. (The maintenance of 4) investment and operation charge. Firebrick cent attachs most importance to qualitative firebrick and light qualitative firebrick (brick of light qualitative heat preservation) . Heavy qualitative firebrick pays attention to high temperature stability. Chemical stability. ; Brick of light qualitative heat preservation pays attention to heat preservation and economy. Coefficient of thermal conductivity is small, explain effect of insulation material heat preservation is good, moving specific power consumption is low. Cost of each unit insulation material is low, explain investment cost is low, investment economy effect is good. The construction method of brick of light qualitative heat preservation pledges the build by laying bricks or stones of heat preservation brick is built gently is a meticulous project. To satisfy the quality requirement of each link in construction process, must notice careful construction strictly. Often check. It is the relevant construction method of kiln wall and kiln top heat-insulation layer below, offer reference. (Build by laying bricks or stones of brick of 1) heat preservation is built. The height of heat preservation wall. Ply and total length must accord with the regulation of blueprint paper. Its build by laying bricks or stones builds method and argillaceous firebrick identical, use fireproof mud build by laying bricks or stones to build. Body of build by laying bricks or stones should make sure mortar is full, mortar is full degree should achieve 95% above. When bricklaying forbidden knock a brick with hammer, knock bricky surface gently with rubber hammer correctional. Forbidden the knife that use ash cuts a brick directly, cut machine cut is orderly. To avoid heat preservation bright fire is contacted directly inside brick and kiln, firebrick build by laying bricks or stones can be used to build all round observation hole, cotton of heat preservation wall, heat preservation, outside the wall is built receive a brick to also use argillaceous firebrick build by laying bricks or stones is built. (2) outfit of insulation cotton shop. Be isolated from the dimension of cotton board should satisfy design requirement not only, and the real need that should satisfy convenient installation. The attention answers in installing a process: Cotton board must tighten intimate contact, narrow as far as possible contact clearance. Be in place of cotton board connect, with agglutinate of high temperature adhesive, make its sealed and firm, in order to ensure its are isolated from the effect. The cotton that machines to need board, knife is orderly, forbidden tear off directly with the hand.
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