QRW Vertical Mill Energy-saving Lock Air Feeder

As is known ,the feeding device of the cement raw material into the mill basically uses the split wheel lock air (rotary feeder), most of the use effect is not ideal, because the raw material is sticky, the phenomenon of material blocking often occurs. In response to the drawbacks of traditional unloading valves, our company has developed a new generation of QRW series of rotor-type bulk material dosing devices, which are accurate in measurement, wide in adjustment range, compact and fully enclosed, high temperature resistance, long service life,  low failure rate , and low maintenance cost. It is widely used in building materials, metallurgy and other fields. The feeding system of the QRW flange special mill is developed by our company to slove the disadvantages of the traditional vertical mill feeding lock valve, such as easy accumulation, blocking, and air leakage. The feeding device has unique anti-jamming technology, good at air locking and material drying . The equipment has simple structure, small maintenance workload and low power consumption.

The benefits of this equipment is listed as below:

1) The equipment installation need small space, the modification is simple and need short short time to finish;

2) Effectively prevent equipment sticking and jamming, improve system operation rate, effectively reduce sticking and hardening of viscous materials, and reduce cleaning work;

3) If it stops under extreme conditions, it can start normally after reverse rotation, reducing the impact time of the accident;

4) Reduce the number of process failures and shutdowns, increase the continuous operation time of the raw meal system, and reduce power consumption;

5) Reduce breakdown damage and operation wear, reduce maintenance workload and costs;

6) Good air lock firstly can improve the powder separation ability and separation effect of the fine powder in the mill, thereby increasing the output of the system by 5-10% per hour, and further reducing the power consumption of the grinding; Secondly , it can improve the drying capacity of the system, improve the adaptability to the water entering the mill, alleviate the decline in output due to material moisture, and reduce the impact on the full-load production of the firing system; Thirdly ,it can effectively reduce the operating load of the vertical mill circulating fan and the exhaust fan of the kiln tail, and the electricity saving per ton of raw material can reach 0.3 ~ 3kwh.

7) Stable continuous operation is conducive to the stability of raw material quality, which in turn improves the output quality of the firing system and reduces coal and electricity consumption;

8) The transformation benefit is significant, and the investment recovery period is less than half a year.