RU66337U1 - COLUMN EXTRACTOR - Google Patents

Abstract

The invention relates to the sugar industry, and in particular to equipment for the extraction of sugar from beet chips. The proposed column extractor contains a cylindrical body equipped with a row of counter blades in height, at the bottom of which there is a horizontal sieve for selecting diffusion juice, installed centrally with blades and a device for supplying a particle-juice mixture, a nozzle for supplying a particle-juice mixture and a box-shaped chamber, to the front wall of which screening knives are fixed outside, the bottom wall of the box chamber is made of sieve, and the rear wall of the box chamber is radially to the pipe shaft and may have a shelf with a mesh surface. The column extractor can be equipped with additional devices for summing the juice-chip mixture, which are evenly placed over the cross section of the housing. The proposed design of a column extractor can improve the quality of the selected diffusion juice, which in turn reduces the loss of sugar during its production.

Description

The invention relates to the sugar industry, and in particular to equipment for the extraction of sugar from beet chips.

A well-known column diffusion apparatus, which contains a cylindrical body equipped in height with rows of counter-blades, and in the lower part there is a horizontal sieve for selecting diffusion juice, installed centrally with blades and a device for supplying a chip mixture, which contains a box-shaped chamber, on one side which has a nozzle for supplying the juice-chip mixture, sieve blades are fixed to the front wall of the box chamber, the upper wall of the box chamber has a slit-like opening for the removal of juice-particle mixture in an upward flow (Patent of Ukraine No. 58, publ. 04/30/1993, Bull. No. 1).

A disadvantage of the known apparatus is the grinding by sieve knives on a horizontal sieve of the pulp, which was moved by diffusion juice to a horizontal sieve when dividing the juice-particle mixture at the outlet of the upward flow of the juice-particle mixture, which affects the purity of the diffusion juice taken through a horizontal sieve.

The basis of the invention is the task of creating a column extractor, in which by replacing the design of the apparatus and the box-shaped chamber, it was possible to improve the purity of the selected diffuse juice.

The problem is solved in that in the known apparatus, which contains a cylindrical body, equipped in height with rows of contra-blades, a horizontal sieve in the lower part of the body for selecting diffusion juice, installed centrally with blades and a device for summing the juice-chip mixture, which contains a pipe for summing the juice-chip mixture and a box-shaped chamber having a lower, rear, side and front wall to which screening knives are attached externally, according to the invention, the bottom wall of the box of this chamber is made of sieve, and the rear wall of the box-shaped chamber is placed radially to the pipe.

The problem is solved in that the holes in the mesh surface of the lower wall are oblong and arranged radially to the pipe.

The problem is solved in that a shelf with a sieve surface is attached to the rear wall of the box chamber from above.

The problem is solved in that the holes in the mesh surface of the shelf are oblong and located tangentially to the pipe.

In addition, the holes in the mesh surface are made with the expansion down.

The problem is solved in that the column extractor is equipped with a collector and additional devices for summing the juice-chip mixture, which are evenly placed over the cross section of the housing.

The totality of all the features of the declared column extractor, namely: the use of the mesh surface of the bottom wall of the box chamber, the placement of the back wall radially to the pipe, the use of several box chambers in the extractor, and in addition, the holes in the mesh surfaces in a certain way, reduce the amount of pulp on a horizontal sieve , which is crushed by sieve knives and affects the purity of the diffusion juice taken through a horizontal sieve.

Due to the fact that the bottom wall of the box-shaped chamber is made of sieve, and the rear wall is placed radially to the pipe, the surface increases to divert part of the diffusion juice from the juice-chip mixture through the mesh surface directly when the juice-chip mixture is fed into the chamber, which leads to a decrease in the speed of diffusion juice after separation of the juice-particle mixture at the outlet of the box chamber of the upward flow of the juice-particle mixture, and reduces the leaching of pulp from it with diffusion juice, which in turn It affects the purity of the diffusion juice taken through a horizontal sieve.

Due to the fact that a shelf with a mesh surface is attached to the rear wall of the box-shaped chamber to support part of the beet chips and pulp, the free movement of the pulp by diffusion juice to the horizontal sieve is eliminated when an upward flow of the juice-particle mixture from the box-shaped chamber is eliminated.

Due to the fact that the holes in the mesh surface of the bottom wall are oblong (oval or rectangular) and arranged radially to the pipe along the length, and in the mesh surface of the shelf, the holes are elongated (oval or rectangular) and placed along the pipe tangentially, the beet chips are eliminated by its movement along the sieve surfaces, and the openings of the sieve surfaces expanded downward improve the conditions for the passage of diffusion juice through the sieve surfaces henna.

Due to the fact that the column extractor is additionally equipped with a collector and additional devices for feeding the juice-particle mixture, which are placed evenly over the cross section of the body, a smaller amount of the juice-particle mixture, proportionally to their number, enters each of the box chambers, which significantly reduces the speed of the diffuse juice

after separation of the juice-particle mixture and eliminate leaching of the pulp from the juice-particle mixture with diffusion juice and, thus, reducing the grinding of the pulp on a horizontal sieve, which in turn improves the purity of the diffusion juice selected through a horizontal sieve.

The invention is illustrated by drawings, explaining, but not limiting its scope. Figure 1 presents a General view of a column extractor, figure 2 is a section along aa, figure 3 is a section along bb, figure 4 is a section along aa (option with additional box-mounted cameras) , Fig.5 is a section along BB in Fig.4.

The column extractor contains a cylindrical body 1 equipped with a row of counter blades 2 in height, and in the lower part a horizontal sieve 3 for draining the diffusion juice, a centrally installed sieve 4 with blades 5, and a device 6 for supplying the chip mixture. The device 6 for summing the juice-chip mixture contains a box-shaped chamber 7, on one side of which is placed a pipe 8 for summing the juice-chip mixture. The box-shaped chamber has a side wall 9 opposite the nozzle 8 for supplying the juice-chip mixture, a front wall 10 to which screening knives 11 are mounted externally, a lower wall 12 which is provided with a screen, and a rear wall 13 that is radially arranged to the pipe and to which a shelf with a mesh surface 14 is attached on top.

The holes in the bottom wall 12 can be made oblong and placed radially to the pipe. The holes on the shelf 14 can be made oblong and placed tangentially to the pipe. The holes can be made with the extension down.

The column extractor can be equipped with additional devices for bringing the juice-chip mixture similar to design 7, located evenly over the cross section of the body, is additionally equipped with a collector 15 and nozzles 8 for bringing the juice-chip mixture into the box-shaped chambers.

Column extractor operates as follows.

The juice-chip mixture from the scalder by a pump (not shown in the drawings) is fed into the cylindrical body 1 in an upward flow using the device 6 for summing the juice-chip mixture. The juice-particle mixture through the nozzle 8 enters the box-shaped chamber 7, attached to the pipe, the bottom wall of which is made of sieve 12, and upstream from the box-shaped chamber enters the suction screen of the housing 1. In this case, part of the diffuse juice contained in the juice-particle mixture leaves through the sieve surface of the bottom wall 12 of the box-shaped chamber 7 and through a horizontal sieve 3 is directly taken from the extractor,

and, during rotation, the juice-particle mixture is distributed along the cross-section of the cylindrical body 1 above the horizontal sieve 3. Due to the lower specific gravity, the beet chips in the diffusion juice float up and the column extractor transport system (blades 5 and counter-blades 2) moves upward towards the extractant, which is fed through branch pipe 16. When the beet chips are moved up, the sugar is extracted from the beet chips, after which the beet chips in the form of pulp are removed from the column extractor by the pulp removal device 17. Due to the removal of part of the diffusion juice through the sieve surface of the bottom wall 12 of the box chamber 7, the upward velocity of the chip mixture at the outlet of the box chamber decreases, which in turn reduces the speed of diffusion juice during separation of the chip mixture to beet chips and diffusion juice in the supersieve space of the housing 1. Beet chips together with the pulp moves up and is removed from the column extractor by a device for pulp water 17, and diffusion juice through a horizontal sieve is taken from the column extractor for further processing.

A more intensive decrease in the speed of beet chips and diffusion juice, which leads to the elimination of leaching of pulp from the juice-chip mixture with diffusion juice when it is separated at the outlet of the box-shaped chamber, and thereby the purity of the diffusion juice selected through a horizontal sieve, improves the column extractor can be equipped with additional devices for summing the juice-chip mixture of a similar design 7, arranged uniformly over the cross-section of the housing; the collector is additionally equipped ohm 15 and nozzles 8 for summing the juice-particle mixture in the box-shaped chambers.

Claims (6)

1. A column extractor comprising a cylindrical body, equipped with a row of counter-blades in height, a horizontal sieve in the lower part of the body for selecting diffusion juice, installed centrally with blades and a device for feeding the juice-particle mixture, which contains a pipe for supplying the juice-particle mixture and a box-shaped chamber having a lower, rear, side and front wall, to which sieve cleaning knives are fixed on the outside, characterized in that the bottom wall of the box-shaped chamber is made sieve, and the rear The box box chamber is placed radially to the pipe. 2. The column extractor according to claim 1, characterized in that the holes in the mesh surface of the lower wall are oblong and arranged radially to the pipe. 3. The column extractor according to claim 1, characterized in that a shelf with a mesh surface is attached to the rear wall of the box chamber from above. 4. The column extractor according to claim 3, characterized in that the holes in the mesh surface of the shelf are elongated and are located tangentially to the pipe. 5. Column extractor according to claims 1 and 3, characterized in that the holes in the mesh surface are made with the extension downward. 6. Column extractor according to claim 1, characterized in that the column extractor is equipped with a collector and additional devices for summing the juice-chip mixture, located uniformly over the cross section of the housing.