Negative pressure pneumatic conveying rotary feeder

Abstract

The invention discloses a negative pressure pneumatic conveying type rotary feeder which comprises an air speed measurement and air volume regulation control device, a rotary feeder main body structure and a material volume precision measurement system. Double airflow channels are arranged in a rotary feeder main body, materials are carried by airflow and fall onto a filter net in an impeller hopper through an air inlet channel, and air is sucked away by a negative pressure air station through an upper air inlet and a ventilation pipeline III; the materials enter a shell discharge port along with airflow through an exhaust channel and are discharged. According to the negative pressure pneumatic conveying type rotary feeder, conveying of materials having the characteristics of being low in density, prone to suspend in air, difficult to collect, likely to be damaged and the like is achieved; meanwhile, the air speed measurement and air volume regulation control device can be used for monitoring the air speed and air volume in real time, the air volume is convenient to regulate and control, the crushing effect of strong air on the materials is reduced, the material volume precision measurement system can be used for precisely measuring the volume of the conveyed materials, and the compact degree of the conveyed materials is guaranteed on the premise that the materials are prevented from being crushed.

Description

technical field [0001] The invention relates to a rotary feeding device in the field of material transportation, in particular to a negative-pressure pneumatic conveying rotary feeder suitable for conveying low-density, easily suspended in air and easily damaged materials such as expanded graphite, feathers, and cotton fibers. Background technique [0002] Rotary feeder is also called unloader, rotary discharge valve, rotary valve or rotary feeding valve. The rotary feeder can be used as an air-locking ash unloading device for various dust removal equipment and an air-locking feeding device for various dryers, mills, silos, silos, and closed conveying systems to prevent air channeling and be used for Uniform quantitative feeding equipment is a key technical equipment in the pneumatic conveying system. [0003] The research on the rotary feeder mainly focuses on the sealing device at both ends of the impeller of the rotary feeder, the application of the rotary feeder in high...

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Problems solved by technology

[0004] The purpose of this invention is to propose a negative pressure pneumatic conveying type rotary feeder, which solves the problem of material conveying with the characteristics of low density, easy suspension in the air, difficult collection and easy damage, etc., and it also has the function of quantitative conveying of materials , uniform feeding, convenient control, no residue in material conveying, flexible combination of pneumatic conveying methods and material acceleration, suitable for application in negative pressure conveying systems

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