Rotary unloader

Abstract

The invention discloses a rotary unloader, and relates to the technical field of grinding, conveying, air locking and unloading equipment of a cement dry normal raw material system. A replaceable wear resisting lining is mounted in a shell; the lining can be replaced after being worn, so that the maintenance time and the maintenance cost are saved; a discharge port is added at the lower part of the shell; materials are timely discharged to the discharge port by self weight to prevent wear of a rotor flange, a main shaft and the inner end surfaces on two sides of the shell; a rotor blade adopts an adjustable edge blade; a connecting hole adopts a waist-shaped hole; the material adopts Hm500; the hardness HRC is 50-55; the wear resistance is improved by 3 times compared with 65 MN material; the blade edge air locking effect can be improved; a rotor end disc adopts a replaceable end disc; the material is 65Mn; the service life is prolonged by 2-3 times; a rotor has no need to be replaced, so that the cost is greatly saved; a rotor hopper adopts a 16Mn steel plate as a lining plate; and a welding mode is used for fixed connection, so that the service life of the rotor hopper is greatly prolonged.

Description

technical field [0001] The present invention relates to the technical field of cement dry normal line raw material system feeding, conveying, locking and unloading equipment, in particular to a rotary unloader. Background technique [0002] In the new cement dry process production line, most domestic manufacturers of raw materials use ATOX50 vertical mill for grinding. The complete set of equipment adopts the technology imported from Smith, Denmark, and the key equipment is the rotary unloader. Due to the difference in climatic conditions and material properties in China, there are two major problems in the actual operation of this equipment: 1) The equipment is blocked due to the high moisture content of the material, resulting in frequent tripping and stopping of the rotary unloader, which makes the stable operation of the entire system impossible. Guarantee; 2) The conveying material is limestone. Long-term operation causes serious wear and tear on important parts such as...

AI Technical Summary

Problems solved by technology

Due to the difference in climatic conditions and material properties in China, there are two major problems in the actual operation of this equipment: 1) The equipment is blocked due to the high moisture content of the material, resulting in frequent tripping and stopping of the rotary unloader, which makes the stable operation of the entire system impossible. Guarantee; 2) The material to be conveyed is limestone. Long-term operation causes serious wear and tear on important parts such as the shell, rotor, and end plate, resulting in material leakage and bad air locks.

Frequent equipment failures reduce the material level of the raw material homogenization warehouse, resulting in the inability to guarantee the kiln system supply, resulting in limited or stopped production of the kiln system, resulting in an increase in the production cost of cement clinker

Images