1. Tunnel kiln length: 89 m, width: 2088 mm, height: 950 mm;
2. Maximum firing temperature：1800℃；
3. Fuel:Natural gas ,thermal value Q=8200 kCal/m3；
4. Firing product：Magnesium-chromium brick;
5. Energy consumption: 1400 kcal / kg product;
6. Burning zone 5 points temperature automatic control, kiln pressure automatic control, input /output kiln car control.