SU747488A1 - Horizontal extractor - Google Patents

Description

I

The invention relates to devices designed to carry out an extraction process from a solid material with an elastic or fibrous structure of particles, for example, to extract enzymes from a surface culture of a fungus, nutrients from vegetable raw materials (beet pulp, malt sprouts), sugar from sugarcane, etc. .

A horizontal extractor is known, comprising a cylindrical body divided by vertical partitions into sections 1. A transfer hopper with a window is provided in the vertical partition. The extractor is provided with a shaft located coaxially with the housing with reloading buckets installed in the sections.

In the design of this device, a reloading and squeezing device has been perfected, which is a reloading cable formed by rear and side perforated walls and a rotary braking partition with an upper wall also perforated.

The brake partition is located above the liquid level and when the overload guard moves at the moment when the lower edges of the bucket and the brake of the partition divide in contact, the material is in a closed spin chamber formed by the walls of the bucket and the partition. The pressure of the braking septum on the material is determined by the size and location on the rigidly reinforced lever.

The disadvantages of this device are: 1, the shortness of the pressure in the interaction of the reloading blade with a torpedo partition, the complex structure of the building, as well as sensitivity to changes in the properties of the product.

The purpose of the invention is to increase the efficiency of the extraction process by increasing the degree of spinning of the solid phase.

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This goal is achieved by the fact that the extractor is equipped with a lever with a blade freely mounted on the shaft in each section.

To regulate the release of the solid phase, an adjustable weight is installed on the squeezing blade lever.

Claims (2)

In order to facilitate the unloading of material from the scoop, the back wall of the scoop and squeeze blade can be installed at an angle of 15-60 ° to the radius of the apparatus. 374 FIG. 1 shows an extractor, longitudinal section; in fig. 2 - cross section. A horizontal partitioned extractor consists of a body 1, divided into successive sections 2 by means of vertical partitions 3. In partitions there is a bunker 4 with an inclined tray, side walls and a window 5 for transferring solids from one section to another. A horizontal shaft 6 is installed along the axis of the body, on which a reloading bucket 8 is fixed with a lever 7. The reloading bucket is formed by a rear wall 9 and side walls 10. The rear and side walls of the bucket are perforated or made in the form of sieves, allowing the liquid phase to drain from the bucket back to section contact area. The back wall of the bucket can be installed at an angle of 15-60 ° to the lever, which facilitates the unloading of material. On the shaft 6, a freely rotating lever 11 is installed with a squeezing blade 12 located between the walls of the reloading bucket. The squeezing blade is also perforated, which is necessary to improve the extraction of the material from the solvent, and can be installed at an angle of 15-60 ° to the lever in order to facilitate material unloading. An adjustable weight 13 is installed on the squeeze blade lever to change the pressing force. The device can be additionally equipped with mixing plow-shaped blades 14, which promote intensive contact of the phases and material displacement in the section into the zone of action of the reloading buckets 8. In each subsequent section, the reloading and squeezing buckets 8 are displaced relative to the buckets of the previous section by some angle, as a result Overloading and spinning of material in sections occurs with a shift in time. The extractor works as follows. The solid raw material is loaded into the first section along the solid phase and immersed in a solvent. In the lower part of the section, intensive contact of the phases takes place under the action of the mixing blades 14 and the reloading bucket 8, which are rotated by the shaft 6. Upon further movement, the bucket 8 captures a part of the material and comes into contact with the vane 12, which hangs freely on the shaft upright. The material is in a closed spin chamber formed by the walls of Kovt 8 and squeezing blade 12. When the reloading bucket and the blade rotate together, they rise above the liquid level in the closed position. In this case, under the pressure of the squeezing blade, the material is squeezed from the liquid, which flows through the perforations in the walls back to the extractor section. In the upper position, the bucket opens and the squeezing blade, which, under the action of the load, returns to its original lower vertical position. The pressed material is discharged through the window 5 and the hopper 4 into the next section during the course of the solid phase. Upon further movement, the bucket captures the next batch of material, after which the spin cycle and reloading is repeated. In the next section of the extractor, the solid and liquid phases are re-operated, the solid mass is pressed out of the solvent and reloaded into the next section. To ensure an even load on the drive of the extractor shaft, the reloading buckets in the sections are shifted by a certain angle. After processing in the last section, the solid phase is extracted and pressed out. The solvent is fed to the last section, flows countercurrently to solid raw materials from one section to another through perforations in the partitioning partitions 3 and is removed from the first section of the extractor. The proposed solid-liquid horizontal sectioned extractor for the system significantly improves the efficiency of the extraction process by clearly separating the contact zone and combining the overload process with squeezing the solid material from the liquid, which leads to a sharp decrease in the delay and reverse transfer of the liquid phase. Claims. A solid-liquid horizontal system extractor comprising a cylindrical body divided by vertical partitions into sections equipped with a discharge box with a window and a shaft coaxially with the body with reloading buckets, characterized in that, in order to increase the efficiency of the process, By increasing the degree of spinning of the solid phase, it is equipped with a lever with a blade freely mounted on the shaft in each section. 2. The extractor according to claim 1, characterized in that, in order to regulate the squeezing of the solid phase, the blade of the lever is provided with an adjustable weight. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2554624/26, cl. On 01 D 11/04, 13.12.77 (prototype). Fig. /