What are the uses and production processes of ватросталне опеке високе глинице?

ватростална цигла са високим садржајем глинице, односно алуминијум-силикатни ватростални материјал са садржајем глинице већим од 48%. Формира се и калцинише од боксита или других сировина са високим садржајем глинице. Висока термичка стабилност, ватросталност изнад 1770 ℃. Отпорност на шљаку је боља.

ватросталне опеке са високим садржајем глинице are mainly used for the lining of blast furnaces, hot blast stoves, electric furnace roofs, blast furnaces, reverberatory furnaces, and rotary kilns. In addition, high alumina bricks are also widely used as open hearth regenerative checker bricks, plugs for pouring systems, nozzle bricks, etc. However, the price of high alumina bricks is higher than that of clay bricks, so it is not necessary to use high alumina bricks where clay bricks can meet the requirements.

Права слика ватросталне цигле високе глинице

The molding production method of high alumina refractory brick and clay brick is basically the same. Only some process parameters are different. There are also processes such as crushing → mixing → forming → drying → firing → inspection → packaging. The compressive stress is better at low temperature but slightly reduced at high temperature, so the stacking in the kiln is less than 1 meter. The production process of high-alumina refractory bricks and multi-clinker clay bricks is similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90%-9%. For example, high-alumina refractory bricks such as Ⅰ and Ⅱ are generally 1500～1600℃ when they are fired in a tunnel kiln.

Производна пракса је доказала да се високоалуминијумски клинкер пре дробљења строго сортира и класификује и складишти у слојевима. Употреба бокситног клинкера и комбиноване методе финог млевења глине може побољшати квалитет производа.

Права слика ватросталне цигле високе глинице

One of the important working properties of high alumina refractory bricks is the structural strength at high temperatures, which is usually evaluated by the softening temperature under load. The high-temperature creep properties are also measured to reflect the high-temperature structural strength. The test results show that the softening temperature under load increases with the increase of Al2O3 content.

The above is an introduction to the use and production process of high alumina refractory bricks, I hope it will be helpful to you.