Technical Parameters

Corundum is flexible Slag resistant brick is a high-tech new material product independently researched and developed by Jinxing company with high-purity refractory materials and high-tech of complex phase hole closure. It is suitable for non-ferrous metal smelting furnaces with high temperature and high acid slag penetration, and has the function of slag impermeability. It can fully meet the smelting process of nickel iron slag and lead water slag rotary kiln, and is widely used in waste incinerator, coal chemical industry and stone industry High temperature kiln burning zone for oil and chemical industry. In the high temperature sintering zone of rotary kiln which uses ferronickel slag, lead-zinc slag and lead-zinc mud as main raw materials to produce ceramic zinc oxide, the service life can reach 10-12 months, which is 2-3 times of that of magnesia alumina chrome brick and 3-4 times of that of phosphate brick. The short life history of 1-3 months of zinc volatilization rotary kiln is over; the service life of the rotary kiln is much longer than that of domestic and foreign products in circulating fluidized bed boiler, municipal solid waste incinerator, industrial waste incinerator, medical waste incinerator, ordinary solid waste incinerator and hazardous waste incinerator. Its characteristics are as follows

1. High wear resistance, high temperature resistance, peeling resistance, erosion resistance, impermeability, thermal shock resistance, erosion resistance and long service life The main physical and chemical indexes were as follows

1. Good thermal shock stability: [1100 ℃ x water cooling] thermal shock times ≥ 20

2. High load softening temperature: [0.2MPa × 0.6%] (℃) ≥ 1600 ℃

3. Good high temperature wear resistance, erosion resistance and spalling resistance: its wear resistance (cm3) ≤ 2.20

4. High compressive strength at room temperature (MPA): ≥ 130

5. Energy saving and environmental protection products: low thermal conductivity (excitation method) [test temperature: 800 ℃] (w / (m · K) ≤ 2.5

6. Good stability: the permanent line change of heating [1450 ℃ for 3 h, buried carbon] (%) is 0

7. Low apparent porosity (%): ≤ 12

9. Compressive creep: [1450 ℃× 50h]% is -0.399

10. High bulk density: (g / cm3) ≥ 3.2

11. Low iron content (%): Fe2O3 ≤ 1.0

12. It is used in the zinc oxide rotary furnace with lead water slag as raw material, and the erosion spalling height is no more than 15mm per month at high temperature.

most important of all:

1. The service life of lead water slag is not less than 10 months, zinc leaching slag is not less than 12 months, the service life of other slag is 3-4 times of phosphate brick, and 2-3 times of mg Al Cr brick.

2. Strong resistance to skin and ring formation, no slag and ring formation.

3. It can resist spalling, erosion and impermeability. It is used in zinc oxide rotary furnace with lead water slag as raw material, and the erosion spalling height is no more than 15mm per month.