The entire production line wire uses a full enclosed negative pressure, and the production site will never have dust and dust pollution. With PLC programming control, safety measures are multi-visual, parallel work, only one of the measures can effectively function, to eliminate safety hazards. In terms of security, the inert gas protection airflow pulverization classifier mainly has the following characteristics: isolation oxygen. In the process, the oxygen content tester continuously monitors the oxygen content in the airflow, and nitrogen is supplemented immediately when it exceeds some extent, so that the oxygen content is always maintained within the safety production standard. Control the gas powder concentration: The feeding system supporting the feature is fully closed, uniform, and is controlled by the control cabinet. Fully enclose the effect of isolating oxygen, uniform speed, controls the material concentration inside the added device, and can be arranged any. Timely release of static electricity and elimination of fire: Pulse anti-blow collector with carbon wire special filter material, can eliminate static electricity in time while ensuring pulse clear ash clean thoroughly. The equipment is all metal components, all grounded to try to release powder static electricity. Circulation cooling: explosion-proof dustproof, emergency stop.The airflow classifier is a special processing equipment in the powder processing industry. After ultrafine pulverization, the gas flow is basically constructed, so the airflow classifier is the last process of powder processing. It directly affects the quality of the finished product.
Airflow classifier is an apparatus for grading the material to the material using the traction force generated by the angular force and the airflow of the impeller. The seal between the rotating cage rotor and the stationary housing is an important part of the eddy current air grade machine structure, which is an important reason for the product fineness or finished product mixed into part of the crude particles. 1 The domestic horizontal classification machine also uses airflow sealing, but cannot strictly control the large particle leakage of the classification wheel, and due to wear, the amount of gas consumption has gradually increased over time.
(2) Mechanical seal
mechanical seals can be divided into embossed seals, which adjusts gap seals and labyrinth seals.
The main principle of the maze-type seal is to ensure the sealing effect by controlling the sealing gap, but because the gap is always existed, the part is thick.Even millimeters of particles do not have the sorting of the rotor, and the sealing effect of the mechanical maze seal in the ultra-fine classifier is not good.
Differential airflow classifier uses a variable air flow sealing structure, with high level of grading accuracy, energy saving, efficiency and production cost, and is obtained in the process of grading in quartz, longite, mica, kaolin, magnesium oxide. Wide extensive application.
2, the working principle of the differential airflow class
Digestible Airflow classifier During operation, the hierarchical impeller high speed rotates to generate centrifugal force, the air blower generates a high-speed airflow through the blade gap After the material is hierarchically incorporated, the material is blown away from the secondary wind blanket, rising to the selection zone, and the traction force of small particles in the selection area is greater than the centrifugal force generated by the impeller, and enter the subdivided material. The material of large particles is larger than the traction force generated by the gas stream, and is smashed into the wall of the barrel, falls and enters the exit of the coarse material.
The above is the sealing method and working principle of the differential airflow classifier. Only by understanding the pressure differential airflow classifier can be selected to be more suitable equipment, and the final customs of powder processing, Shandong Egypt Pie Powder Technology Co., Ltd. specializes in the production of various airflow classification equipment. In 23 years, the company has provided tens of 10,000 sets of equipment and production lines at home and abroad. The company also has professional powder experiments and testing centers. Free feed experiment.
For the next overseas expansion, the General Manager of the ALPA Powder Science and Technology said that Alpa Powder Technology is very clear and full of confidence. In the future, AlPa Powder Technology adheres to innovation, quality, service, and constructs "global sales" system to form a global competitive manufacturing enterprise.
