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.

Skills preferred in pig iron refractory using

Xinmi Changxing refractory main products of bottom blowing argon with a series of quick drying pouring material is listed as national torch plan project focus of permeable brick, gun furnace, the skill level of international priority; between the working lining refractory material for ladle, with a series of skateboard outlet, between three large bulky package casting goods has reached international advance level.

Productivity growth is the issue grows the important power. Raised for the project of 100000 tons unshaped refractory, 200000 ventilation bricks, 25000 tons of brick, 10000 tons of silicon nitride silicon carbide brick, concluded 20000 tons slides, 5000 tons casting three pieces are to be 20 at the end of the year completed and put into production, 50000 tons of alumina magnesia carbon brick foresight will be put into operation in 2010 May, after the achievement growth is productivity have put on the important power.

The exchange rate will continue to maintain the hair foreseen before and after 35%. Commodity cost structure, raw materials accounted for 82%, accounting for 4% of human resources, and depreciation accounted for 14%, by raw materials price greater impact. The enterprise commodity wool exchange rate has remained around 40% high, causes include:

First, price inertia causes the price to maintain high, before 2000, the steel mill in refractory simply from foreign entrance, after gradually realize the entrance is replaced, the unit price is still maintained at a high level;

Second, because the inserted steel enterprises need annual certification, after insertion has some monopoly power, high insertion wind barriers, greater responsibilities (such as causing the steel leakage accident must bear the compensation duty) make wool exchange rate to maintain a high level;

Three, refractory material as supplies accounted for only 1% before and after the cost of steel making, steel prices is not sensitive to the price; fourth, enterprises pay attention to innovative products R & D, the majority, but also conform to the user’s skill requirements, unceasingly withdrawal new goods and to mobilize additional value of commodity, have strong pricing ability, thus maintaining a higher gross rate the level of.

Application of epoxy mortar 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 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 do not bring into shares and splashing, crisis of cooling wall serious burn.

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 25mins, 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 very successful, dedication to strengthen the property of high yield and make the blast furnace.

Advantage of Changxing intermediate frequency furnace ramming material

In the present, no matter in what kind of industry, everyone can see, there are a lot of new refractory products come into our sight of them, let the life of people is very good, like theChangxing intermediate frequency furnace ramming material is one of them, but after the market on the understanding that, a lot of people with this knowledge, we are not very clear, here, the professionals as we detailed introduce this knowledge.

First of all, professional personage introduction, for material in actual use Changxing intermediate frequency furnace, this is the choice of a high-temperature adhesive quality, in actual use, we can find that the refractories, have very strong, and the actual quality is quite good, which also contains a lot of high purity quartz sand, quartz powder, then, there will be a very good temperature resistance. Actual use, the temperature can reach 2000 degrees, because of this,in the present, has been widely used in non-ferrous metal and ferrous metal continuous and intermittent operation environment, and the use effect is very good.

Secondly, the Changxing intermediate frequency furnace ramming material has a comparative advantage, it is in actual use, can also play not hang slag, no crack, no failure and so on damp such benefits, a big advantage, this is also one of the.

About Changxing intermediate frequency furnace ramming material advantage of knowledge share to here, hope to be able to bring you some help, if you want to know more knowledge in this respect it, everyone please pay attention to our website, will continue to introduce this knowledge.

Applications of silicon carbide

As everyone knows, silicon carbide has a very broad application field, in the field of abrasive, chemical, metallurgy, high-grade refractory materials, advanced ceramics have a very versatile. Silicon carbide is a special material machinery industry chain upstream link – wafer productionprocess, mechanical industry development, silicon carbide industry has brought some opportunities by expanding and upgrading of product structure and the downstream demand.

Refractory materials and machinery are silicon carbide traditional low-end applications, low added value. With the continuous innovation of the processing equipment and technology, aiming at strengthening the development of the new use of silicon carbide and new application market, expand the business ideas, is the only way for the healthy development of the silicon industry in the future.

Silicon carbide are used widely, such as metallurgy, machinery, chemical industry, mining machinery, light industry, electronics, a heating body, abrasive can be used as a metallurgicalindustrial purifying agent, deoxidizing agent and modifier. In the mechanical processing can be used as synthetic cemented carbide; silicon carbon plate after processed can be used for roof plate as refractory ceramic firing. By finishing the production of powder, can be used in the high-tech electronic components and far infrared radiation material coating, high purity micro powder can be coated for national defense industry stone machine industry Aerospace ware, use in every field of economy of domestic and international is very wide.

Production and processing of silicon carbide is dependent on the crusher and mill equipment, and because of its special requirements, so it is necessary to select appropriate crusher products can meet the requirements of. The broken plastic, red star heavy sand making machine is suitable for soft or hard and super hard materials, widely used in all kinds of ores, cement, refractories, aluminum where soil clinker, glass raw materials, mechanism building sand, stone and various metallurgical slag, especially for silicon carbide, Jin Gang sand, sintered bauxite, beautiful sand high hard, and very hard abrasive resistant material than other types of crusher yield higher efficiencies.