What prefabricated parts and castables do lime manufacturers use?

Lime and dolomite manufacturers have similar chemical composition and chemical properties, and the calcination temperature is roughly the same. Some companies use the same kiln to burn lime and burn dolomite alternately. There are roughly three types of refractory materials for lining of dolomite sand manufacturers. One is aluminum spinel brick for calcining zone, high alumina brick for transition zone, clay brick for preheating zone, and refractory fiber or light-weight thermal insulation layer. Bricks, the kiln surface temperature of this form is 3~35℃, and the lining life is 1~2 years; the calcined zone is a spinel light and heavy composite brick, the shell surface temperature is below 25℃, and the lining life is 2~2 years. 3 years; the third is to use prefabricated blocks and castables to form a lining, the surface temperature of the shell is also below 25 ℃, and the service life is also 2 to 3 years.

Dolomite sand manufacturers

Baosteel replaced spinel composite bricks with andalusite bricks at 16.1~19.55m of the calcination zone. The surface temperature of the kiln shell was reduced, the weight of the kiln body was reduced, and the performance of the kiln skin was also good. After 2 years of use, the kiln skin and andalusite bricks were well preserved. , The composite spinel brick peeled off seriously. Because andalusite is less dense than spinel, if andalusite bricks are used in the calcination zone, the weight of the kiln body can be reduced by 35t, and the shell temperature can be reduced by 1℃.

1. The main content and the scope of application of lightly burned dolomite

This standard specifies the principle of price chemical composition analysis of dolomite powder for glass industry, the reagents, instruments, analysis steps and result processing used by dolomite sand manufacturers.

This standard applies to the chemical composition analysis of dolomite used in the glass industry.

2. Specimen Preparation

Sample property and uniformity, no foreign impurities mixed in, after shrinkage, about 2g of sample is obtained, ground in an agate bowl until it passes through a 15μm (1 mesh) sieve, and then placed in a weighing bottle for use.

3. Analysis method

3.1 General provisions

3.1.1 Different analysis methods listed in the same section of the standard can be selected according to the specific situation, in case of disputes. Method 1 shall prevail.