Double-piston type pneumatic conveyer

Abstract

The invention provides a double-piston type pneumatic conveyer, and relates to the technical field of pneumatic jetting devices. The double-piston type pneumatic conveyer comprises a rack, a rotor mechanism, an upper cylinder barrel mechanism, a lower cylinder barrel mechanism, a piston drive mechanism and a hydraulic mechanism. The hydraulic mechanism is arranged on the rear side of a bottom frame, the rotor mechanism is fixed to the front side of the bottom frame, the lower cylinder barrel mechanism is configured above the rotor mechanism, the upper cylinder barrel mechanism is configured above the lower cylinder barrel mechanism, and a hopper is mounted above an upper cylinder barrel of the upper cylinder barrel mechanism. The upper cylinder barrel mechanism and the lower cylinder barrel mechanism are arranged in the same direction, the piston drive mechanism simultaneously drives the two cylinder barrel mechanisms, and an upper sealing piston and a lower sealing piston are alternately located at a sealing position. Materials in all material bins are continuously jet through the rotor mechanism in the rotating process of a rotor. According to the pneumatic conveyer, the contradiction that pushing and sealing need to be achieved by the rotor and the pistons is solved, friction between the materials and the sealing pistons is reduced, the sealing effect is improved, the jetting distance is increased, dust generated in the conveying process is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of pneumatic injection devices, in particular to a double-piston pneumatic conveyor. Background technique [0002] Pneumatic conveying equipment is often used in chemical industry, mining and coal mine underground to transport powder, fine particles and other materials inside the pipeline under the action of compressed air; Conveyors have been used, but most of the traditional pneumatic conveying equipment has problems such as fast wear, short conveying distance, and large conveying dust. Among them, the sealing of the pneumatic conveyor is mainly realized by the pusher piston, but the seal is not tight after the pusher piston rubs against the material for a long time, so the spray distance becomes smaller, and there is still a large amount of dust when conveying materials that are prone to dust generation. In addition, it is necessary to further simplify the structure of the jet machine. Contents of the ...

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Problems solved by technology

[0002] Pneumatic conveying equipment is often used in chemical industry, mining and coal mine underground to transport powder, fine particles and other materials inside the pipeline under the action of compressed air; in recent years, coal mine underground coal wall drilling pressure relief etc. Conveyors have been used, but most of the traditional pneumatic conveying equipment has problems such as fast wear, short conveying distance, and large conveying dust.

Among them, the sealing of the pneumatic conveyor is mainly realized by the pusher piston, but the seal is not tight after the pusher piston rubs against the material for a long time, so the spray distance becomes smaller, and there is still a large amount of dust when conveying materials that are prone to dust generation. In addition, it is necessary to further simplify the structure of the jet

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