SU548318A1 - Hydrocyclone for separating mineral impurities from grain - Google Patents

Description

one

The invention relates to devices for separating mineral impurities from grain, such as maize, and can be used in the food, starch and other industries.

A hydrocyclone is known for separating mineral impurities from grain, comprising a housing with a supply pipe for the starting product, a receiver for mineral impurities with a gate, and a tube connected to the receiver for mineral impurities for additional water supply.

A disadvantage of the known hydrocyclone is the low separation efficiency, due to the fact that the additional water consumption increases unproductively with pressure fluctuations of the initial grain flow.

 A hydrocyclone is known, which includes a housing with a pipe for feeding the initial product and a horizontal partition in which a pipe for discharging the clarified fraction is installed, a drain pipe and a receiver for mineral impurities with a gate.

The aim of the invention is to increase the separation efficiency.

This is achieved by the fact that the hydrocyclone is provided with a disk placed in the upper part of the branch pipe of the discharge of the clarified fraction and forming an additional pressure chamber with the horizontal partition of the body.

connected by a drain pipe with a receiver of mineral impurities.

It is advisable to connect the drain pipe with a pressure chamber at a tangent.

The drawing shows a hydrocyclone for isolating mineral impurities from grain, a general view.

The hydrocyclone consists of a housing 1 with a pipe 2 supplying the original product, pipe

3 removal of the clarified fraction, installed in the horizontal partition 4. In the upper part of the branch pipe of the discharge of the clarified fraction is placed a disk 5, forming with the horizontal partition 4 of the body an additional

pressure chamber 6. Drain pipe 7 connects naior chamber 6 with a receiver 8 of mineral impurities, equipped with a shutter 9 and an inclined chute 10.

Hydrocyclone works as follows.

The grain transported hydraulically under pressure enters the hydrocyclone through the inlet nozzle 2. Under the action of centrifugal forces inside the hydrocyclone, the liquid and mineral are separated from the grain

inclusions. Moreover, the liquid through the annular gap formed by the disk 5 and the wall of the housing 1, enters the additional pressure chamber 6 and further along the drain pipe 7 tangentially into the receiver 8 mineral impurities.

Claims (1)

The flow of water at the exit of the receiver 8 minsral impurities into the lower part of the hydrocyclone creates a hydraulic resistance for the corn kernels and prevents them from entering the receiver 8 impurities. At the same time, mineral particles, as more heavy, freely enter the receiver of mineral impurities 8. After receiver 8 is filled with mineral impurities, the shutter 9, actuated by mechanical, pneumatic or other actuator, closes the hydrocyclone outlet, and the mixture is poured into the inclined chute 10. Then the shutter 9 returns to its original position and the cycle repeats. When the pressure of the mixture of grain with water is changed at the inlet to the hydro cyclone, the pressure in the drain pipe 7 simultaneously changes, this does not require any additional adjustment, which simplifies the maintenance of the apparatus. Thus, by supplying a hydrocyclone with a disk placed in the upper part of the outlet tubing of the clarified fraction and forming an additional pressure chamber connected to the receiver of mineral impurities with the horizontal partition of the housing, as well as connecting the drain pipe to the pressure chamber tangentially, the separation efficiency is increased, due to the possibility of stabilizing the ratio of the amount of the liquid phase entering the receiver of mineral impurities to the amount of the initial idrosmesi entering the hydrocyclone. Claim 1. Hydrocyclone for separating mineral impurities from grain, comprising a housing with a supply pipe for the initial product and a horizontal partition in which a discharge pipe for the clarified fraction is installed, a drain pipe and a mineral impurity receiver with a gate, characterized in that, in order to increase the separation efficiency , it is equipped with a disk placed in the upper part of the nozzle for discharge of the clarified fraction and forming an additional pressure chamber connected to the drain with the horizontal partition of the housing receiver pipe with the mineral impurities.