Q:How much is the silica powder in refractory bricks.

It's not easy to construct, also need to consider the technical and economic indexes, DH3, 1 kg silica powder replaces 1 ~ 3 kg cement, which is the reason why silicon powder was not used and spreaded in concrete in past, choose some silica power fume. In general, with the smoke escaping by special capture device for collecting and processing To determine the mixing method of silica powder, when mixing silica powder, you should find out the optimal dosage in order to obtain the best results, as the study, the content is 5% ~ 30%, H, the mixing of super high strength concrete, use same amount of silicon powder to replace equal cement to main same fluidity, Microsilica or Silica Fume, it is mainly according to the design requirements, and does not reduce the amount of cement, sand and stone to adjust the optimal dosage of water reducer, when deciding the best mixing amount of silica fume, the concrete is too sticky, most use naphthalene water reducing agent.

Q:Which is best of refractory brick press machine?

Rub press machine have been forced out. Without permanent magnet. The electric screw press machine is suitable for the forming of refractory bricks. Use Kehui switch reluctance to servo motor to drive electric screw press machine, have the ability of high quality electric screw press machine, no water cooling, high efficiency and energy saving, green and environmental protection.

Q:application of phosphate refractory bricks

The 4 properties of phosphate refractory bricks: (1) high strength wear resistance (2) and chemical erosion (its alkali resistant ability is better than that of clay brick and high alumina brick) (3) and good thermal shock resistance (4) high load softening temperature in rotary kiln, kilneye, kiln Zone door cover, cooling machine and lining refractory brick falling parts easy to loose

Q:What is the main use of refractory brick?

Refractory bricks are mostly used as furnace lining amd air heating furnace in high temperature industry Such as the iron and steel industry blast furnace, colored reverberatory furnace, converter

Q:What kind of refractory brick is suitable for 24*28m rotary kiln of 5,000 tons?

24~28 meters belongs to the transitional zone, magnesia spinel brick or silicon carbide brick (Series)

Q:the refractory brick in glass furnace burner was burning, the bricks on both sides of the fire hole were burning the blocked it, what will cause brick burning?

The firebrick in glass melting furnace is mainly consisted of zircon brick, other ordinary refractory materials can not effectively prevent the erosion of glass solution. Because the glass melting liquid is eutectic mixture compared to the refractory bricks, it penetrates into the refractory brick and reduces its original performance, simply speaking, the glass melting liquid dissolves the refractory bricks as eutectic mixture .

Q:Is refractory brick afraid of rain?

High alumina clay is not afraid of rain, but covering is better, magnesium carbon refractory brick had better not be rained.

Q:T38 size of high alumina refractory brick

high alumina brick, according to the aluminum content, is divided into four grades, the aluminum content of the first grade is no less than 75%, also called the special high alumina brick; the aluminum content of the second grade is no less than 65%, the third grade is no less than 55%; the aluminum content of super high aluminium brick is more than 85%; If the shape is very irregular, it is usually called the super special high alumina brick. in short, there is a universal type of high alumina brick except for standard high alumina brick, customised according to the specific appliction of the kiln.

Q:can the red brick be used as refractory brick?

Can not replace! The high temperature will make it burst. Coefficient of thermal expansion is not enough