Sealed feeding device

Abstract

The invention discloses a sealed feeding device which is used for feeding materials to an airtight chamber. The sealed feeding device comprises a rack which is provided with a feeding shell body. A push piston is arranged inside the feeding shell body. The feeding shell body comprises a material accumulation section arranged at the tail end of feeding stroke of the push piston and a push section arranged in the feeding stroke of the push piston. A feed inlet is formed in the push section of the feeding shell body. A discharge outlet is formed in the front end of the material accumulation section of the feeding shell body. The rear portion of the push piston is connected with a push driving device. The push piston carries out push in the push section of the feeding section. Materials added from the feed inlet only can be pushed into the material accumulation section of the feeding shell body by the push piston and can not be directly pushed out of the discharge outlet. Materials are accumulated and stored in the material accumulation section, and gas passages of the discharge outlet and the airtight chamber are blocked. Under continuous push of the push piston, the materials in the material accumulation section are continuously replaced, the materials which are pushed out of the material accumulation section are fed into the airtight chamber, sealing material feeding is achieved, the structure is compact, feeding efficiency is high, and sealing effect is good.

Description

technical field [0001] The invention relates to a sealed feeding device. Background technique [0002] When feeding the closed tank, in order to prevent the gas in the tank from overflowing, gas-blocking feeding is required. At present, pneumatic conveying is mostly used to realize gas-blocking feeding. Pneumatic conveying uses compressed gas as the power source, and the material is transported through the delivery pipe It is sent to a sealed and airtight tank with high conveying speed and uniform cloth distribution, but the gas consumption is large and blockage is prone to occur. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sealing feeding device with a compact structure, which can not only ensure the feeding efficiency, but also ensure the sealing effect. [0004] In order to solve the above technical problems, the technical solution of the present invention is: a sealed feeding device for feeding materia...

AI Technical Summary

Problems solved by technology

[0002] When feeding the closed tank, in order to prevent the gas in the tank from overflowing, gas-blocking feeding is required. At present, pneumatic conveying is mostly used to realize gas-blocking feeding. Pneumatic conveying uses compressed gas as the power source, and the material is transported through the delivery pipe Send to the airtight tank, the conveying speed is high, the cloth is uniform, but the gas consumption is large, and it is prone to blockage

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