Common firebrick (point to silicon qualitative firebrick or tall aluminous brick normally) it is one of applying extensively at equipment of high temperature industry fireproof material, can accomplish " already cheap use is extensive " , main profit from the following crucial factors:
1.Raw material is rich and cost is low the raw material of common firebrick is silica, bauxite, clay, quartz mostly, these raw material are commonner in nature and get easily, manufacturing process is relatively simple, cost is consequently inferior. Especially qualitative firebrick of a few silicon, its bases is quartz or silicon arenaceous, these material not only reserve is substantial, the price is lower also. Accordingly, the cost that produces common firebrick is relatively inferior, make its make the economy that applies in a lot of industry fireproof material.
2.Manufacturing technology is simple and common the manufacturing technology of firebrick is relatively mature, simple, include raw material normally choose, mix, shape, dry wait for measure with high temperature fire. Traditional production methods and equipment, the course is accumulated for a long time, special already maturity and cost can accuse. In addition, the specific power consumption in producing a course and operation requirement are inferior, this also reduced manufacturing cost further.
3.High temperature resistant although,function satisfies general requirement of common firebrick fireproof degree relatively inferior (be in commonly ℃ of 1300 ℃ ~1600 is controlled) , but to equipment of a lot of high temperature industry, wait like furnace of common kiln furnace, heating furnace, roast, its are high temperature resistant function satisfies use requirement completely. To these equipment, common firebrick was offerred enough fireproof degree, and do not need to use costlier tall fireproof spend material. Its are able to bear or endure lukewarm function moves normally with what service life can assure equipment, and do not need to be rise fireproof spend and raise cost.
4.Extensive applicability is common the applied range of firebrick is very wide, apply to the common high temperature environment in all sorts of industry. As a result of the diversity of its composition and function, common firebrick can choose different specifications and sort according to demand: Silica brick: Apply to acidity environment (like acidity and slaggy or acidity atmosphere) in, furnace of the liner of body of heater that is used extensively at iron and steel industry, roast. Tall aluminous brick: Apply in a few high temperature and alkalescent atmosphere relatively extensive, apply to the equipment such as furnace of cement plant, metallurgy. Argillaceous brick: Be in a few low temperature or in in lukewarm high temperature equipment, wait like a few heat treatment furnace, kiln furnace, also have wide application.
Common firebrick adopts a change its chemistry composition and workmanship, the furnace kiln that can get used to different type, body of heater, heating installation, this also makes it makes the demand in all trades and professions very big, use one of very extensive fireproof data.
5.The strength that common firebrick can retain certain below high temperature mixes better mechanical strength and thermal stability stability. They can bear below high temperature greater pressure, concussion and wear away, because this applies to need to bear the environment of greater mechanical stress, wait like steel-making furnace, kiln furnace. Its better thermal stability and heatproof shake sex make it fluctuates in temperature the structural strength that still can keep better below bigger condition and function.
6.Safeguard and change the norms that because common firebrick aborning often uses standardization,goes to the lavatory, and manufacturing technology and technology are mature, their maintenance and change relatively simple also. Structure of traditional bricky build by laying bricks or stones is OK and relaxed repair or the brick that change to be damaged partly, need not undertake changing large-scaly to whole and fireproof liner. This makes the device that uses common firebrick maintains cost inferior, and maintenance cycle is shorter.
7.Good sexual value can satisfy a lot of industry requirement on function not only than common firebrick, still have higher sexual price to compare. They are in high temperature resistant, fight aggressivity, thermal stability, construction the respect such as handy sex had very good integral performance, but manufacturing cost is relatively inferior, and raw material and workmanship are very mature also, because this applies extensively at of all kinds in in equipment of microtherm, high temperature, furnace of the furnace kiln that waits for a domain like steely, chemical industry, cement, metallurgy, electric power, kiln, heating furnace, boiler.
Common application is common firebrick because cost of its function stability, production is inferior, apply to many more the following domain: Metallurgy industry: Be like the lining of blast furnace, converter, electric stove, especially the silica brick application in acidity environment. Cement industry: The liner of cement kiln. Vitreous industry: The liner of melt glass kiln. Chemical industry: In the equipment such as furnace of heating furnace, roast. Steely industry: Use at the equipment such as bag of ladle, steel.
8.Summary
Common firebrick already cheap use is extensive, its raw material abounds main profit from, manufacturing technology is simple, high temperature resistant function is demand of environment of contented and average high temperature, mechanical intensity and thermal stability are good wait for an advantage. Their sexual price is compared tall, can satisfy a lot of industries to be opposite the demand of fireproof material, and pass the common firebrick with logical different and phyletic choice, OK and extensive at the many industries such as metallurgy, chemical industry, glass, cement applying. Accordingly, common firebrick remains the market in relatively commonly used one of fireproof material with economy.
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