Negative-pressure pneumatic conveying and measuring system

Abstract

The invention provides a negative pressure pneumatic transmission weighing system which adopts the negative pressure pneumatic transmission adaptable to the production condition in a single-storey low factory building and improves the weighing accuracy. Particularly, the system is suitable for a formula product with less consumption of powder. The system mainly comprises a rotary feeder connectedbelow a storage bin; an outlet of the rotary feeder is connected with a material accelerating chamber; the material accelerating chamber is connected with one end of a conveying pipeline; an inlet ofa powder scale is connected with the other end of the conveying pipeline; a dust remover is connected above the powder scale through a flange; the dust remover is connected with a Roots blower through a vacuum pipeline; a negative pressure control valve is arranged at one end of the vacuum pipeline adjacent to the dust remover; and a negative pressure adjusting valve communicated with the external environment is arranged at one end of the vacuum pipeline adjacent to the Roots blower.

Description

technical field [0001] The invention relates to a negative pressure pneumatic conveying and weighing system, which is specifically applied to a material proportioning process with a small formula consumption, and belongs to the field of mechanical manufacturing. Background technique [0002] At present, centralized batching systems are widely used in rubber machinery, chemical metallurgy and other industries. In the batching system, multi-row or multi-layer silos are used to store multiple layered materials. [0003] The existing positive pressure pneumatic conveying system requires a higher installation workshop and a larger floor space. For the on-site production environment of a single-story low-rise factory building, the positive pressure conveying system cannot be realized. If countermeasures are taken to transform the positive pressure conveying pipeline, it will often cause a drop in conveying pressure and affect the weighing accuracy. Contents of the invention [...

AI Technical Summary

Problems solved by technology

For the on-site production environment of a single-story low-rise factory building, the positive pressure conveying system cannot be realized. If countermeasures are taken to transform the positive pressure conveying pipeline, it will often cause a drop in conveying pressure and affect the weighing accuracy.

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