Y kiln as calcination equipment for boron powder, but the products obtained from rotary kiln calcination are usually of low activation rate, low leaching rate, high coal consumption, poor thermal efficiency, so it is difficult to make good use of boron ore resources. Applying our dynamic drying and calcination process equipment can produce the boron powder with high activity and grade. The boron powder flash calciner is of the features of energy saving, without environmental pollution, high recovery rate, small land covering area and high automation degree.

Working Principle:
Apply the feeder to feed the wet boron powder into the Si De dryer, and the heat source for drying is the hot exhaust generating from the calcination process; The dry materials and air enter into the gas-solid separator for separation, and the separated materials are sent to the calciner for activation calcination, the working medium for calcination is the hot smoke (temperature is about 1000 ~1050 degree Celsius) generated from the coal-fired direct hot-blast furnace, and the materials, after the fast mass transfer and heat transfer for active calcination for a few of seconds, are separated and cooled, and then enter into silos.

Process:
Performance Features:
1. Convenient operation, short calcination time, the entire process is completed within a few seconds to tens of seconds;
2. Due to the recovery and use of hot exhaust generating from calcination, the total energy consumption is low;
3. High product activity, when Boron fine powder B2O3 grade ≥ 7.5%, the calcination activity can reach 80%~90%;
4. With exhaust purification devices, so the environmental pollution is little;
5. Small land covering area for equipment, convenient maintenance.

Technical Specifications:
Within the series of models, a single piece/set of equipment can produce active boron powder 50, 000 tons, 70, 000 tons and 100, 000 tons per year.
Related References:
Boron Powder Flash Calcination New Process Research
Typical Cases:
1. Capital Steel Company: Annual output of 70, 000 tons of active boron powder
2. Liaoning Fengcheng Fenghua Boron Group: An annual output of 50, 000 tons of active boron powder.