Light qualitative adiabatic firebrick is one kind has the fireproof stuff of rate of low volume density, tall hole and good heat proof quality, basically use at the liner of industrial kiln furnace and equipment and thermal insulation. Its characteristic is to have favorable adiabatic effect, can hold stable structure and fireproof property below high temperature environment at the same time, apply extensively at the domain of energy-saving heat preservation of equipment of of all kinds high temperature.
One, the function of light qualitative adiabatic firebrick
1.Low volume density The bulk density of light qualitative adiabatic firebrick is normally between 0.6 ～ 1.5 G/cm³ , lighter than common firebrick a lot of. This kind of small density makes its can reduce the integral weight of kiln furnace or equipment effectively, drop structural negative charge.
2.Tall hole is led The hole rate of light qualitative adiabatic firebrick is higher, be in commonly 40 ～ 85% . Many hole can cut off effectively heat is conducted, make its have favorable adiabatic effect, reduce the hot loss of kiln furnace interior thereby, promotion can effect.
3.Superior heat proof quality Light qualitative adiabatic firebrick has inferior thermal conductance, control in K of · of 0.1 ～ 0.5 W/m normally, can isolate effectively the heat between high temperature area and microtherm area is conducted, have the effect of heat preservation heat insolation. Compare with common firebrick, its heat proof quality promotes greatly, can reduce the sources of energy to use up significantly.
4.Tall fireproof degree Although pledge adiabatic firebrick has higher hole rate and small density gently, but its fireproof degree taller still, come in 1200 ℃ normally between 1600 ℃ , stable structure and property can hold below high temperature, apply to operating mode of of all kinds high temperature.
5.Heatproof shake sex is better Because the hot coefficient of expansion of light qualitative adiabatic firebrick is inferior, and in-house hole conduces to alleviate thermal stress, its heatproof shake sex is opposite better, the environmental middleman and guarantor that can change quickly in temperature holds better structural integrality, produce craze not easily or flake.
6.Chemical stability Light qualitative adiabatic firebrick has better chemical stability below high temperature, can resist of acidity or neuter atmosphere erode, and the wear that keeps better below most chemical environment.
7.Machinability is strong The material of light qualitative adiabatic firebrick is qualitative relative softness, machine easily, can undertake the fabricating such as cut, bore according to specific requirement, facilitating construction and use.
2, the applied domain of light qualitative adiabatic firebrick
Light qualitative adiabatic firebrick is mixed by right of its superior heat proof quality high temperature resistant characteristic, get applied extensively in many industry domain. Main applied field includes the following fields:
1.Furnace of kiln of high temperature industry Metallurgical industry: The liner of the blast furnace of ironworks of commonly used Yu Gang, hot-blast stove, heating furnace and furnace of other high temperature mixes light qualitative adiabatic firebrick thermal insulation. Its exceedingly good adiabatic effect can drop temperature of surface of body of heater significantly, reduce the sources of energy to use up, promotion thermal efficiency. Potter course of study: Pottery and porcelain is firing in the furnace of high temperature kiln such as kiln, channel kiln, shuttle type kiln, the place such as the liner that pledges adiabatic firebrick can be used at kiln body gently, adiabatic wall, roof, conduce to the temperature inside stable kiln, reduce loss of quantity of heat. Vitreous industry: Vitreous frit kiln is medium regenerator, cooling paragraph wait for place, pledge adiabatic firebrick can be used as heat-insulating material gently, the help raises the thermal efficiency of kiln furnace and vitreous frit to make quality.
2.Petrifaction and chemical industry Furnace of oil refining splitting decomposition: Furnace of the oil refining device in petrifaction industry, splitting decomposition and reactor often need to move below high temperature, light qualitative adiabatic firebrick can effective heat insolation, reduce hot loss, improve the moving efficiency of equipment. Chemical equipment: In chemical production, the equipment such as reactor, heat exchanger needs to maintain high temperature environment for long, light qualitative adiabatic firebrick can serve as thermal insulation, decrease external heat is conducted, the hot efficiency of hoist.
3.Cement industry Cement rotary kiln: The temperature of rotary kiln job in cement production is very high, light qualitative adiabatic firebrick is commonly used at the thermal insulation of fireproof liner inside kiln, can reduce kiln put oneself in another's position effectively external heat radiation, raise heat energy utilization rate, lengthen kiln furnace service life.
4.Power industry Boiler liner: In power industry, the liner of boiler and thermal insulation use light qualitative adiabatic firebrick, can reduce the hot loss of the wall outside boiler, promote the thermal efficiency of boiler, reduce moving cost.
5.Aerospace industry In aerospace domain, light qualitative adiabatic firebrick is used in high temperature equipment, test facilities and heating power protection system, if rocket motor checks platform,wait. These plant need move below condition of abominable high temperature, of light qualitative adiabatic firebrick high temperature resistant can provide reliable hot screen with heat proof quality.
6.Environmental protection and trash handle equipment Rubbish incinerator: The high temperature area in rubbish incinerator, be like firebox and part of more than heat boiler, often use light qualitative adiabatic firebrick to regard thermal insulation as material, the help maintains the stability of high temperature environment, avoid loss of quantity of heat at the same time. Other high temperature handles equipment: In including all sorts of trash to handle the equipment such as device, heat treatment furnace, light qualitative adiabatic firebrick can regard high temperature as heat-insulating material application, the help raises the energy utilization rate of equipment.
7.Of high temperature equipment energy-saving transform Light qualitative adiabatic firebrick because its good heat proof quality, what often be used at equipment of high temperature industry is energy-saving in transforming a project, reduce loss of quantity of heat, improve the moving efficiency of equipment. In equipment of high temperature industry energy-saving in transforming, light qualitative adiabatic firebrick can be used at the liner of the device such as kiln furnace, boiler and exterior heat insolation.
Because its are light,sum up light qualitative adiabatic firebrick qualitative, adiabatic, high temperature resistant, be able to bear or endure the character that chemistry corrodes, in the high temperature device that uses extensively at the many industry domain such as metallurgy, pottery and porcelain, glass, chemical industry, cement, basically have the adiabatic heat preservation, effect that reduces the estrangement that heat up caustic to improve thermal efficiency. Rise as what industry asks to energy-saving environmental protection, the application of light qualitative adiabatic firebrick in equipment of of all kinds high temperature will continue to expand, produce main effect.
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