Air locking rotary feeding machine

Abstract

The invention relates to an air locking rotary feeding machine, which comprises a shell. A rotor which divides an inner cavity of the shell into an upper portion and a lower portion and is longitudinally arranged is disposed in the shell, the rotor comprises a rotating shaft and a plurality of outwards radial spokes, the spokes are disposed on the rotating shaft, and a groove for holding materials is formed between each two adjacent spokes. An outer circle of the rotor, two end plates and the shell are machined, gaps are small (with sizes only ranging from 0.05mm to 0.10mm), an air locking performance is fine, and the air locking rotary feeding machine rotates freely. Simultaneously, the materials are filled in the grooves of the rotor, and contact with the inner wall of the shell when the rotor moves, secondary sealing is formed due to contact of the materials and the inner wall of the shell, particularly, a sealing effect for powdery materials is good, and an air locking effect is further strengthened. Accordingly, the air locking rotary feeding machine with the structure is fine in air locking effect, and dust pollution due to leakage of hot air is avoided.

Description

technical field [0001] The invention relates to an air-lock rotary feeder, in particular to an air-lock rotary feeder for feeding bulk materials to enable continuous drying treatment. Background technique [0002] Bulk materials mainly refer to small block and powder materials, and the industries involved include building materials, chemicals, materials, daily chemicals, metallurgy, environmental protection and other industries. With the continuous advancement of science and technology, various new materials are emerging, and more and more bulk materials need drying, sorting, gas-solid separation, drying and grinding integration operations. Hot air is introduced as a heat source. Due to the needs of industrialized large-scale production and the limitation of equipment capacity, it is impossible to take out all the materials in the equipment and then reload them after the operation is completed. It must be operated continuously, which requires a continuous feeding of materia...

AI Technical Summary

Problems solved by technology

The disadvantage of pipeline feeding is that the air cannot be locked during continuous feeding, and the hot air carries a large amount of dust and sprays out of the pipeline, which not only wastes heat energy, but also produces serious dust pollution. When the medium is sprayed out, there will be greater resistance to the feeding of the powdery material, so that the powdery material cannot enter the equipment smoothly, and the blocky material will easily block the pipeline and cause poor feeding.

The feeding of the flap valve cannot realize continuous feeding. When the material in the flap valve reaches a certain amount, the flap opens, and the material falls into the equipment. Because it is intermittent feeding, the impact on the load of the equipment is greater, and the equipment cannot reach the maximum load.

At the same time, when the flap is opened to feed materials, hot air is ejected, which creates greater resistance to powdery materials and brings out a large amount of dust to cause pollution.

Because of this, neither the traditional conveying pipeline feeding nor the flap valve feeding can play the role of sealing and locking the wind and feeding smoothly.

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