Acid proof brick gun refining narrowing and sintering

Volume reduction is a key characteristic of acid resistant brick gun mixing change, reducing the volume of the size of the value, not the same in different temperature range. The majority ofacid resistant refractory brick gun tried to narrow temperature at 600~650 deg. C.

Along with physical – and acid resistant brick gun refining process of chemical change, true proportional acid proof brick have changed. 400~650 reduced the temperature range from 950 DEG C, liquid phase, followed by the occurrence of the generation and growth of mullite crystals, Mo, true proportional value unceasingly to rise, at the temperature of 1350~1400 DEG C during, true proportional tends to be stable, then the acid resistant brick has presented considerable dense static. The true proportion of acid resistant brick clinker general should not be less than 2.70.

Quality and acid resistant brick acid resistant  refractory brick clinker sintering closely. Animportant symbol of acid resistant brick sintering is composed of dense block, porosity outstanding outstanding decline, color changes, and has shown a glass colored luster. The sintering mechanism of acid resistant brick is important to liquid phase sintering process, the sintering function is so important to occur at high temperature liquid phase with the number of attributes, namely in the number flux magazine containing acid proof brick in the variety, and Al2O3/SiO2 ratio, sintering temperature and sintering. The range is a critical property of acid proof brick, acid content in general journal brick is less, the sintering temperature is higher, and the narrower the sintering range. Degree of sintering brick acid through conventional water absorption or bulk density said, ordinary water absorption rate is less than <5 font="">

Application of epoxy mortar used in blast furnace.

Blast furnace used in treatment of iron mud gun port, through the usual is a water gun mud, but in the steel yield is high, the epoxy mortar are more susceptible to iron slag machineerosion and chemical corrosion, resulting in a blast furnace slag not net, not only affect the blast furnace high yield smooth, also easy to send the world iron process of iron mouth off, resulting in iron mouth running large flow caused by accident. At the same time, because of the iron export surge, prone to iron mouth call “bazooka” accidents such as scald people.

Ingredients important producing anhydrous stemming ratio (%): brown alumina brick 15-24, SiC 6-15, black 20, white mud 12-16, tar, 18-20. The gun mud pressure intensity 20Mpa, easy to speak in the blast furnace mouth machine openings and anti erosion function better.

An important component of white mud amount is too large, will reduce the excessive mud gun, which occurred after hours, crack, impact stemming humanity, in stemming the adding amount of 12% basically, gradually increase the volume, current after firing line changes to +0.3%, the best performance, the plasticity is high, a steel at high temperature have a good micro expansion, no crack, no effective away by expansion, with iron, iron flow channeling cracks donot bring into stocks and with spray, burning out the serious crisis of cooling wall.

An important component of low, medium temperature sintering agent amount, will have the influence to the stability of iron, sintering agent was added to make the gun mud formation of low melting material under high temperature, thereby stemming corrosion resistance variation, when tapping a splash phenomenon. Find the ratio of 2.5%, treatment of iron mouth, than water stemming save 25min time, and does not affect the iron groove processing, iron, iron flow stability.

The above anhydrous stemming in domestic steel reference 1, No. 2 blast furnace, a water gun mud compared with the same period, the following skills: blast furnace iron mouth indicators pass rate rose 2%, iron punctuality rate rose 6.6%, iron content difference pass rate rose 8%, iron mouth iron wind reduction rate decreased 96%, every day can increase your iron blast furnace operation, safety parameters have also been mobilized. The development and application of anhydrous stemming is very successful, dedication to strengthen property high made of blast furnace.

High strength low cement castable

[purpose] heating furnace; furnace flame environment such as rolling heating soaking pit wall, top, bottom, pipe, burner cast or prefabricated, industrial boiler body; chemical equipment such as ammonia, a two conversion furnace lining casting;

[Characteristics]

high refractoriness — low cement castable content more than 1650-1800 DEG C, refractoriness, high temperature performance;

Intensity high — temperature, high temperature strength, anti erosion, anti stripping;

Anti erosion — at high temperature for various kinds of steel slag has strong resistance to erosion ability;

[Usage]

According to the proportion of water, stir into a mortar machine, vibration molding.

[Storage]

25kg/ bag sealed package at room temperature for 3 months.