There are a lot of phyletic kinds in firebrick, different, but differ with respect to one word between some firebrick, make person cent not clear have what difference, e.g. : Light qualitative firebrick and heavy qualitative firebrick. Below we introduce simply light qualitative firebrick and kind the distinction of heavy qualitative firebrick.
Light qualitative firebrick: Show density is less than the firebrick of 1.3×103Kg/m3 commonly. Pledge gently, the quality that points out this kind of firebrick namely is light. Light qualitative firebrick has the following characteristic:
1, density is small, weight is light, can reduce weight of body of heater to simplify kiln furnace is tectonic;
2, porosity is tall, heat conduction rate is minor, heat preservation sex is good, can save specific fuel consumption, raise equipment to manufacture efficiency;
3, mechanical intensity is low, cannot use at bearinging structure;
4, wearability is poor, unfavorable use at be being contacted with charging, wear away serious place;
5, porosity is bigger, cannot use at direct contact slaggy with place of liquid state metal.
Weigh qualitative firebrick: Heavy qualitative firebrick is namely in firebrick agglomeration craft the firebrick that gives priority to agglomeration to come out with a few heavy simple stuff. Its itself weight should weigh on a lot of times than light qualitative firebrick, not be for adiabatic heat preservation in the process that using, more important is for fireproof temperature, in using a process normally as direct as the blaze inside kiln furnace contact, so heavy qualitative firebrick has high temperature resistant effect normally. Choose saggar or mix into to add other and fireproof raw material, press multistage burden, shape via machine pressing, high temperature is firing.
Light heat preservation of weight of light qualitative firebrick is adiabatic, but not tall wearability needs strength, cannot contact high temperature blaze; In weight of heavy qualitative firebrick, heat preservation lies between heat energy force to differ, but intensity tall wearability is big, high temperature resistant. When build by laying bricks or stones builds high temperature facility, can join real case according to demand, will light qualitative firebrick and heavy qualitative firebrick according to design program, union rises use, will achieve favorable result, meeting hoist service life and use efficiency.