A device for continuously crushing dry starch in a starch production line

Abstract

The invention discloses an apparatus for continuously crushing dried starch in a starch production line. The apparatus comprises a feeding airlock and a discharging airlock, a starch crusher and a solid-gas separation bucket are arranged between the feeding airlock and the discharging airlock, a starch conveying pipeline between the starch crusher and the feeing airlock is provided with an air supplying device, a gas outlet of the solid-gas separation bucket is connected with a deduster through an exhaust pipeline, a tail gas outlet of the deduster is connected with a draft fan through a draft pipeline, a solid outlet of the deduster is connected with a dedusting airlock, a discharging port of the dedusting airlock is connected with a starch recovery port of the solid-gas separation bucket through a starch recovery pipeline, and an explosion venting device is arranged on the deduster. The apparatus can crush airflow-dried starch, allows finally obtained starch to have a required fineness without sieving, and has a large processing capability and a high safety performance.

Description

technical field [0001] The invention relates to the technical field of starch production equipment, in particular to a device for continuously crushing dry starch in a large-flow starch continuous production line. Background technique [0002] Corn starch is an important industrial, food and pharmaceutical raw material. Different uses have different requirements for the fineness of starch. The pass rate of corn starch 100-mesh sieve surface produced by ordinary corn starch assembly line is 98~99%, but when starch users When there is a relatively high requirement for starch fineness, such as when the passing rate of the 100-mesh sieve surface is not less than 99.5%, it is necessary to sieve the air-dried starch. The sieving process is usually handled by a vibrating screen, but due to vibration The processing capacity of the sieve is low, usually 8-10 tons / hour. For a large starch production line with an output of 60 tons / hour, a lot of vibrating screens are needed, which not ...

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Problems solved by technology

[0002] Corn starch is an important industrial, food and pharmaceutical raw material. Different uses have different requirements for the fineness of starch. The pass rate of corn starch 100-mesh sieve surface produced by ordinary corn starch assembly line is 98~99%, but when starch users When there is a relatively high requirement for starch fineness, such as when the passing rate of the 100-mesh sieve surface is not less than 99.5%, it is necessary to sieve the air-dried starch. The sieving process is usually handled by a vibrating screen, but due to vibration The processing capacity of the sieve is low, usually 8-10 tons / hour. For a large starch production line with an output of 60 tons / hour, a lot of vibrating screens are needed, which not only takes up a lot of space, but also because the sieve surface is often blocked. Stable and continuous operation is also difficult to guarantee, and the environment is very dusty, which will bring great safety hazards to the production workshop

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