Ordinary boiler boiler tube system, combustion chamber, flue and dust collector and other parts, the work is not high, mainly for industrial and civil heating and other departments. Thereare many types of boilers, the number of large, commonly used coal as fuel; there is heavy oil or gas. Today, we introduce fire resistant materials for ordinary boiler…
Ordinary boiler combustion chamber operating temperature for 1400 to 1600 DEG C, the lining generally use a clay brick masonry, the remaining parts of the lining and flue layer with three level of clay brick, non working layer adopts ordinary red brick masonry. Recently, some of the boiler combustion chamber is lined with refractory of 1710 – 1790 DEG C of the refractory can be plastic ramming or refractory castable watering, flue layer with high alumina cement clay castable refractories production and its application effect is good.
Some of the ordinary boiler front arch temperature of 1300 to 1400 DEG C, using high aluminacements high alumina castable or phosphate clayey castable watering. After the arch parts of the work temperature of about 1000 DEG C, is commonly used in high alumina cement clay refractory castable production, the remaining parts of the lining, the Portland cement or high alumina cement clay castable; coal-fired boiler are generally installed with a dust remover, temperature is not high, but the smoke and dust grinding loss is severe. If a steel plate to produce the dust collector and the inner wall should daub fruit plate making precipitator by silicate or phosphate refractory and the inner wall should be using water glass or refractory phosphate coating material for protection layer, service life can improve the L ~ 3 times.
In order to save energy and low temperature part of the ordinary boiler can use insulation board and light refractory pouring material used for lining, high-temperature parts also added a heat insulation layer, to reduce heat loss of a furnace body and improve boiler potency.
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