Burn coal big furnace to need to use tall aluminous brick or siliceous aluminium brick normally firebrick of this kind of high temperature. These bricky material can be able to bear or endure character the very high temperature of the generation in getting high temperature combustion process and chemistry are corroded, maintain structural stability and durable sex. Tall aluminous brick is made by tall aluminous alumina, and siliceous aluminium brick is by siliceous aluminium acerbity salt material is made, they are a kind of firebrick, apply to high temperature industry furnace and large the application such as the furnace that burn coal.
Boiler is firebrick build by laying bricks or stones build close firebox, burn in order to supply fuel, reach blaze of the flaming in boiler each heating surface and outside isolation to rise. Accordingly, requirement firebrick has hear resistance, adiabatic sex and sealing. Its are given priority to with different clay firebrick mostly with firebrick.
The structure of system of build by laying bricks or stones of boiler 1, capacity of boiler setting structure is given priority to with heavy construction in the boiler setting of the industrial boiler under 35t/h, immediate step builds boiler setting to go up in the foundation of boiler. Boiler setting is comprised two layers by inside and outside, fireproof liner wall uses T-3 standard firebrick build by laying bricks or stones is become, adiabatic outside the wall is become with build by laying bricks or stones of mechanism red brick. To improve heat proof quality, the thermal insulation that has 20mm left and right sides stays between firebrick and red brick, the heat-insulating material with good stuff, or firebrick of heat insolation of diatomite of 16mm of inter build by laying bricks or stones. Requirement of 4 walls corner bites the wall outside red brick each other build by laying bricks or stones, make 4 walls form whole, wear with light-duty steel outside will outside mural band lives, steel wearing is not added outside the wall outside some, common brick of be similar in shape wall. Boiler setting ply is 360~730mm, lining is 116~232mm firebrick, outer for 240~480mm red brick. In the microtherm area of boiler rear flue, spend when smoke air temperature under 500 ℃ when, furnace moisture in the soil uses red brick build by laying bricks or stones to build entirely. 2, commonly used and vaulted roof and condole hang the roof structure of boiler of roof construction industry roof. Vaulted roof is comprised by firebrick of foot of the arch foot bridge of profiled bar, arch, wedge firebrick and heat-insulation layer. Condole hangs roof to hang crossbeam, cable suspension, condole to hang brick and heat-insulation layer composition by profiled bar condole.
Specific choose which kinds of firebrick, want a foundation type of combustion temperature, fuel and other environment element will decide. Different furnace and combustion condition may need the firebrick of different type, because this suggests to seek advice from professional engineer or fireproof data vendor, choose right stuff in order to ensure.