Roots blower used in flour mill

Can roots blower be used in flour mill?

Flour is a necessity in our daily life. All kinds of pasta such as steamed bread we eat are inseparable from flour. As we all know, flour is produced by wheat after processing in flour processing plant. Can roots blower be used in flour production?

The answer is yes. Roots blowers can be used in flour mills during production. At that time, there were small flour mills in many places, and roots blowers were in every workshop. However, with the development of flour mills, more and more professional standardization.

In recent years, China’s food industry has developed rapidly, enterprises are developing better and better, and the hygienic standards are also getting higher and higher. Bulk receiving is used in flour purchasing, flour logistics equipment is more advanced, and flour enterprises use powder warehouse storage for distribution.

At present, most of the newly-built enterprises have built flour post-processing system, which has the conditions of flour bulk storage and distribution. However, roots blower is generally used for the gas production equipment of bulk flour in and out of the warehouse. Roots blower has the advantages of high gas production performance, moderate pressure, and large selection of model and speed, so it is widely used.

In flour transportation, pneumatic conveying of powdery materials is the key to realize bulk transportation mechanization. In the process of pneumatic conveying, the movement state of material particles is mainly controlled by the conveying air flow. According to the combination of equipment, the pneumatic conveying methods of flour are mainly divided into suction type and pressure feeding type. In addition, the combination of suction and pressure conveying devices is called mixing device.

Compressed pneumatic conveying system

The roots blower is located at the front of the feed end of the system, so the material can not enter into the conveying pipe freely, so a sealed and pressure maintaining feeding device must be used. After the roots blower is started, the material enters the conveying pipe from the hopper through the rotary feeder, and is transported to the separator by compressed air. The material is separated from the air and discharged by the rotary unloader.

Application of Roots blower in flour conveying

The compressed pneumatic conveying technology is adopted by most flour mills. The compressed pneumatic conveying system covers a small area, is easy to install and arrange, is not restricted by buildings and other equipment, multi-point unloading, simple tail gas treatment and easy automatic control. It can be seen from the pneumatic conveying system that the materials are transported from one silo to another by pneumatic force, and the feeding has certain height requirements. The distance of material conveying or the height of material lifting is determined by the air volume and pressure supplied by roots blower. In pneumatic conveying of powdery materials, the movement of materials in the conveying pipe is a problem of gas-solid multiphase flow. The relationship between conveying distance, height and gas volume, pressure and pipeline characteristics has been described by mature theory.

Suction pneumatic conveying system

The roots blower is located at the rear of the system. When roots blower is started, the whole system will form negative pressure, and the pressure difference between inside and outside the pipe will be generated. The material will be brought into the pipeline by air and transported to the separator. In the separation, the material is separated from the air, and the separated material is discharged by the rotary unloader.

Suction pneumatic conveying system is a pneumatic conveying system that can absorb and transport materials from a certain place to a silo, which can lift a small height and transport a short distance. The system has the following characteristics: the conveying device is in a negative pressure state, and the materials and dust will not overflow and fly. It is suitable for the centralized transportation of materials from several places to one place, and is suitable for the transportation of materials with wide accumulation area or deep storage. The feeding method is simple, but the conveying capacity and conveying distance are still limited. If the material needs to be absorbed from a certain place and transported to a distant place or lifted to a higher height, the mixing device can be used.

Roots blower is widely used as a kind of grain bulk transportation equipment. In the whole conveying system, the effect is remarkable, which can ensure the quality of flour without moisture absorption and pollution.