Rotary drum air seal machine

Abstract

The invention discloses a rotary drum air seal machine. The rotary drum air seal machine comprises a shell and a rotary drum. A horizontally-arranged cylindrical cavity is formed in the shell. A feeding port is formed in the top of the shell. A discharging port is formed in the bottom of the shell. The rotary drum is arranged in the cylindrical cavity and matched with the cylindrical cavity. The rotary drum is provided with a hollow inner cavity. A notch corresponding to the feeding port and / or the discharging port is formed in the cylindrical face of the rotary drum and communicates with thehollow inner cavity. The rotary drum can rotate around the axis of the cylindrical cavity in the cylindrical cavity, and the notch of the rotary drum alternately communicates with the feeding port andthe discharging port. During feeding, the rotary drum rotates so that the notch can communicate with the feeding port, and meanwhile, the cylindrical face of the rotary drum seals the discharging port, and materials in an unloader or a dust remover can smoothly enter the hollow inner cavity of the rotary drum. During discharging, the rotary drum rotates so that the notch can communicate with thedischarging port, and meanwhile, the cylindrical face of the rotary drum seals the feeding port, and the materials in the hollow inner cavity of the rotary drum can be smoothly discharged out of the discharging port. The structure is simple, air tightness is good, and the air leakage phenomenon is not likely to happen.

Description

technical field [0001] The invention relates to the technical field of air locks, in particular to a rotary drum air lock. Background technique [0002] The air shutoff device is an important device in the pneumatic conveying and ventilation dust removal network. Its main function is to continuously and timely discharge the materials in the unloader or dust collector, and at the same time prevent the outside air from entering the unloader or dust collector. It is widely applicable It is used in the pneumatic transportation of equipment in rice milling, milling, cement, machinery and chemical industries and the unloading of pipeline network pressure. Therefore, the air tightness of the air lock is an important criterion for the quality of the air lock. [0003] The structure of the air lock is usually composed of the shell, the impeller, the impeller shaft and the end covers on both sides. There is a material inlet at the upper end. During the continuous rotation of the impel...

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Problems solved by technology

[0003] The structure of the air lock is usually composed of the shell, the impeller, the impeller shaft and the end covers on both sides. There is a material inlet at the upper end. During the continuous rotation of the impeller, the material is discharged from the discharge port at the bottom. The existing air lock The structure of the impeller is simple, and the blades are all straight plates with gaskets on the outer end. When the impeller rotates, the gaskets will rub against the casing, the gaskets will be worn, and the gap between the blades and the casing will increase, which will easily cause air leakage in the air lock. Phenomenon that causes outside air to enter the dust collector or discharger

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