Make the system of fireproof material line of industrial furnace lining, below action of high temperature condition, different level land produces general metropolis expand. At the same time line system interior changes as a result of temperature and produce heat build-up stress of temperature gradient, cause liner body happening chap and flake wait for a phenomenon. Expand to decrease and eliminate this to plant and temperature stress, expand certainly in the setting inside line system normally surplus is formed expand structure, be used to what what weigh to expand namely seam reach all round its structure, will release line system to expand in heat the stress that gets the generation when restraining.
(1) expands seam stay set a mind
Expand seam stay set a method to have a variety of. But basic idea is: The heat that uses fireproof data according to actual village body is expansile can, at the same time mature to expand seam stay set what won't cause strength of line system structure to reduce.
Connecting general reason condition to fall, expand seam stay setting size is with line the virtual heat of material of side of main high temperature expands the design temperature of rate and industrial furnace undertakes computational reaching for the foundation. But even if the fireproof material heat of actual measurement expands rate, because experimental condition and actual application environment are existing to have the difference that waits for a respect without load, and the action that the brick seams fireproof slop, accordingly, expand actually seam taking the measure that establish is to press line system material to expand greatly normally of the quantity 60% the left and right sides takes a cost.
(2) expands seamed main form
In structure of system of general industry lining, of the design expand seam have look of straight, broken line, crisscross form and inclined cut form, but no matter why be planted form, expand seam leave the base that establish to answer according to afore-mentioned requirements of 1. Additional, when specific design, the existence that because expand,should prevent to seam, bring about gas of the high temperature inside furnace to develop steel structure of body of heater or insulation material continuously. A few kinds of representative fireproof material introduce to expand below seam stay set pattern.
Body of firebrick build by laying bricks or stones: In structure of system of firebrick build by laying bricks or stones, expand seam stay set should form of straight, broken line and upright ministry concentration stay set wait for a form. Will tell commonly. The firebrick wall put oneself in another's position with temperature of small to relatively mobile quantity, the chamber of a stove or furnace and not high furnace pressure. Use more straight expand seam. Otherwise, appropriate expands with broken line form seam. Lesser to dimension of a few structures and span of the chamber of a stove or furnace, total consideration expands the firebrick wall put oneself in another's position with not large amount, also can use the concentration that carry a department to stay set expand seamed structure.
Pouring makings line system: In pouring stay inside makings line system set expand seam, mature arrive pouring makings in roast the change with volume of system of the line in using whole process. Small to construction bulk, expand line system can not set total hidebound expand seam.
In pouring stay in makings line system set expand seam basically have straight or waviness and broken line form two kinds.
In straight expand in seaming a structure, pound the insulation material of back of working furnace village or steel structure directly to prevent gas of the high temperature inside furnace, expanding commonly the microtherm end that seams length adds a firebrick, common says to build a brick.
Pouring makings line system expands seam stay set use two kinds of methods commonly: One kind is to stay directly set, be in namely pouring before makings construction, expand those who have particular strength seam material to stay set in pouring the fixed place inside pattern plate. Be like broken line form (or waviness) ; another kind of method is to be in pouring after construction of body of makings build by laying bricks or stones is finished, the basis devises measure, mechanical on line system cut is become seam, fill next expand fill up material, this kind of method is multi-purpose at straight expand seam.
But model (pound dozen) makings line system: But model (pound dozen) of makings line system expand seam structure and stay set a method to be the same as pouring structure of makings line system. Sometimes, also have in but after construction of plastic liner system is finished, undertake with flat authentic the structure is seamed certaining artificially seaming formation.
(3) expands seam take the basic measure that establish
Expand those who seam basic measure is special difficulty certainly, but at the same time it is the very crucial dimension in industrial lining. If preamble place is narrated, design of different material, different environmental temperature requirement expands differently surplus. Expand surplus design is undeserved, still can cause deterioration of the leakage outside structural damaged, gas or stock, environment, bring about the happening of the accident even. Accordingly, expand the computation with the certain rigorous course that seams dimension, include to do wanted material high temperature to expand function experiment detects.
Flourish Cheng Naicai basically produces tall aluminous brick, silica brick, argillaceous brick, magnesian Luo brick, heat-insulating material, fireproof slop, pouring a series of high quality products such as makings, flourish fills a company to take consistent management concept, pursue " sincere letter, respectful modest, innovation, respect property " tenet, " cheap of qualitative actor price " the cornerstone that develops as the enterprise, will found " Rong Cheng character " as company strategy goal. Govern system, rich product type with scientific administrative technological process, perfect client information, the user that is us provides satisfactory, seasonable, efficient service.
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