Pneumatic conveyor

Abstract

The invention discloses a pneumatic conveyor which comprises a rotation shaft, a drive mechanism used to drive inward rotation of the rotation shaft, a shell and an elastic sealing membrane, wherein the drive mechanism is connected to the rotation shaft by driving, the rotation shaft is sealed and passes through one end of the shell, the rotation shaft is stretched into the shell, a feeding hole is disposed in the wall of the shell, a feeding spiral is disposed on the rotation shaft right facing the feeding hole, a discharge hole is disposed in the other end of the shell, a discharge spiral is disposed on the rotation shaft near to the discharge hole, the elastic sealing membrane elastically sleeves the rotation shaft between the discharge spiral and the feeding spiral and is sealed and coordinated with the inner wall of the shell, and a sealing area is formed inside the shell between the elastic sealing membrane and the feeding spiral. The pneumatic conveyor provided by the invention can be suitable to various materials, does not need journal sticking during conveying and realizes the completely sealed continuous conveying without mechanism wear.

Description

technical field [0001] The invention relates to a gas conveying sealing device, in particular to a pneumatic conveying device used for shutting off air or mixing solid materials with airflow during gas conveying. Background technique [0002] At present, in the process of gas transportation of powder materials, there are mainly the following technical problems: [0003] 1. Because the gas is sealed by pipelines, and the materials are transported by means of pneumatic vehicles or mechanical transportation, due to the high pressure of the transported gas, the gas will leak along the material inlet when feeding, causing environmental pollution and gas pressure relief, which cannot be achieved the purpose of the delivery; [0004] 2. At present, mechanical seals are widely used, such as air locks. The mechanical seal equipment wears a lot, has a short service life, and the sealing performance of the equipment is poor. At the same time, the mechanical seal is a seal in motion. ...

AI Technical Summary

Problems solved by technology

[0003] 1. Because the gas is sealed by pipelines, and the material is transported by means of pneumatic vehicles or mechanical transport, due to the high pressure of the transported gas, the gas will leak along the material inlet when feeding, causing environmental pollution and gas pressure relief, which cannot be achieved the purpose of the delivery;

[0004] 2. At present, mechanical seals are widely used, such as air locks. The mechanical seal equipment wears a lot, has a short service life, and the sealing performance of the equipment is poor.

At the same time, the mechanical seal is a seal in motion. For materials with strong water absorption, poor fluidity, and high viscosity, they are easy to hold the shaft during motion, and continuous transportation cannot be achieved.

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