Energy-saving type positive and negative pressure pneumatic air seal machine

Abstract

The invention relates to an energy-saving type positive and negative pressure pneumatic air seal machine which is provided with a shell, wherein a feed port is formed in the upper part of the shell, a discharge port is formed in the lower part of the shell, a partition is vertically arranged in the middle of a cavity of the shell, so as to divide the inner cavity of the shell into a front discharge channel and a back discharge channel, and an upper blade and a lower blade are installed in each discharge channel by an upper rotating shaft and a lower rotating shaft. The energy-saving type positive and negative pressure pneumatic air seal machine is characterized in that a front sealing plate and a back sealing plate are installed on the upper part of the partition, a plurality of air blowing holes are formed in the front sealing plate and the back sealing plate, a front air inlet channel and a back air inlet channel are formed between the front and back arc-shaped sealing plates and the partition, and air inlets corresponding to the front and back air inlet channels are formed in the shell and externally connected with air inlet pipes; the upper rotating shaft in the front discharge channel and the lower rotating shaft in the back discharge channel extend to one side outside the shell, the lower rotating shaft in the front discharge channel and the upper rotating shaft in the back discharge channel extend to the other side outside the shell, and linkage transmission mechanisms are installed between the respective two rotating shafts on both sides of the shell. The energy-saving type positive and negative pressure pneumatic air seal machine can be applied to a positive and negative pressure wind transported or dust removal system, the problem that the existing valve type air seal machine cannot be suitable for a discharge port positive pressure wind network system is solved, and the energy-saving type positive and negative pressure pneumatic air seal machine is mainly suitable for pneumatic transmission and ventilation dust removal systems in industries of grains, feedstuff, food processing plants, medicine, chemical engineering, tobaccos, metallurgy, cement and the like.

Description

technical field [0001] The invention relates to an air closing and unloading device in industrial pneumatic conveying and ventilation and dust removal systems, in particular to an energy-saving positive and negative pressure pneumatic air lock. Background technique [0002] The air shutoff device is an indispensable part in the pneumatic conveying and ventilation and dust removal system. It is a logistics channel for the exchange of solid materials between different air pressure fields such as the wind network and the wind network, and between the wind network and the atmospheric environment. During the material exchange process, the air pressure field or system environment with different pressures is isolated to ensure that the pressure between each pressure field is independent and mutually stable, the air and pressure do not leak, and the gas does not flow through each other. The technical core of the application of this device must first realize the sealing of the inlet ...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem of using impeller air shutoff in pneumatic conveying, ventilation and dust removal system, which has high manufacturing cost, large operating power consumption, easy impeller jamming, and burnt motor, while valve type air shutoff cannot be used in positive pressure pneumatic conveying system. work, and driven by four cylinders, the structure is complex, the action is difficult to coordinate and the balance of the wind network is damaged, and an energy-saving positive and negative pressure pneumatic air lock is provided.

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