a mixer

Abstract

An energy-saving stirrer. Several groups of radial rods are uniformly arranged in the radial direction of a stirring shaft, several groups of stirring rods are arranged in the radial direction of each radial rod, the axis of the stirring rod is parallel to the axis of the stirring shaft, and a tangential rod or a spiral combination of tangential rods is welded at the end part of the radial rod group. The radial rod is of a sheet structure, the stirring rod and the tangential rod are cylindrical, square strip-shaped or sheet-like, and the actual distance from the tangential rod or the combination of the tangential rod and the spiral to the inner wall of a reactor is controlled to be below 5 cm. By means of the present invention, materials can be stirred in all directions so as to prevent the materials from being adhered to the inner wall of the reactor to form scale; moreover, the materials are not extruded while being stirred and are loosened instead, and thus the air permeability is good, and an aerobic fermentation reaction is promoted; since the stirring resistance is small, the power consumption is low, the energy saving effect is remarkable and the service life of the equipment is long.

Description

technical field [0001] The invention relates to the technical field of biological environmental protection, in particular to an agitator in an aerobic fermentation reactor. Background technique [0002] Chinese patent CN202849272U discloses a reactor for aerobic fermentation. The agitation of materials in the reactor is completed by the stirring flight board arranged between the spiral blade and the spiral blade, but when the flight board rotates along the circumference of the container , The copying board has an extrusion effect on the material, which reduces the air permeability of the fermented material and prolongs the fermentation reaction time. After the air in the material is squeezed out, it will send an anaerobic reaction and generate toxic gases such as hydrogen sulfide, which will endanger the aerobic fermentation reaction. At the same time, the resistance of the helical blade and the stirring plate is large, the power consumption is high, the starting power of th...

AI Technical Summary

Problems solved by technology

[0002] Chinese patent CN202849272U discloses a reactor for aerobic fermentation. The agitation of materials in the reactor is completed by the stirring flight board arranged between the spiral blade and the spiral blade, but when the flight board rotates along the circumference of the container , The copying board has an extrusion effect on the material, which reduces the air permeability of the fermented material and prolongs the fermentation reaction time. After the air in the material is squeezed out, it will send an anaerobic reaction and generate toxic gases such as hydrogen sulfide, which will endanger the aerobic fermentation reaction. At the same time, the resistance of the spiral blade and the stirring plate is large, the power consumption is high, the starting power of the forward and reverse rotation switching is large, and the equipment is damaged quickly.

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