- Molybdenum concentrate roasting rotary kiln production line--direct-fired rotary kiln
- Molybdenum concentrate roasting rotary kiln production line--zero fuel consumption rotary kiln
- Molybdenum concentrate copper removal production line
- Sodium sulfite production line from waste gas sulfur dioxide from roasting molybdenum concentrate
Introduction of direct-fired rotary kiln:
Direct-fired rotary kiln can ensure good roasting quality, large production capacity of a single set of equipment, long service life, energy saving and environmental protection, and high mechanization and automation of supporting equipment. The rotary kiln has good versatility and can dehydrate, crush, screen, and pneumatically convey materials. Various combustion devices use different types of fuel to heat the rotary kiln, and the exhaust gas treatment system can recycle materials.
Working principle:
The internal combustion rotary kiln uses coal, coal gas or natural gas as fuel. The generated flue gas is used as a direct heat source for roasting. The moisture content of dehydrated molybdenum sulfide is ≤5%. The molybdenum concentrate is fed into the rotary kiln for oxidative roasting, and the calcined molybdenum oxide is discharged from the kiln tail.
Performance & features:
1. The residual sulfur of molybdenum oxide after calcination meets the standard.
2. 400-450kg of coal is required to produce one ton of molybdenum oxide.
3. The annual output of molybdenum oxide in a single kiln is 2,000 tons.
4. Long service life, up to 10-15 years.
5. The recovery rate of molybdenum oxide can reach more than 98%.
Specs:
1. The length of the kiln with an annual output of 2,000 tons of molybdenum is 18 to 30 meters.
2. The diameter of the kiln is 1.5 to 1.8 meters.
3. Bag dust collector is used for tail gas recovery.
