SU886927A1 - Horizontal extractor - Google Patents

Description

(54) HORIZONTAL SECTIONAL EXTRACTOR

one

This invention relates to devices designed for conducting a continuous, countercurrently extracted process from a hard solid material (a FIBROUS particle culture, for example for extracting medicinal and titanating substances from plant raw materials, sugar, sugar cane, etc.).

From, a horizontal sectional extractor is known, including an overloading and squeezing blade and a guide cylinder located across the entire width of the contact section, which provides the MHoroKipaTHbrn with a solid phase during its stay in the contact section and partially overload it into the next section. The ratio of the amount of material being reloaded and returned to the section is determined by the slope of the rotary chute I.

A disadvantage of the known extractor is the low intensity of the force applied to the material. For particles with a rigid structure and closed puzzles, compression at low specific pressures does not allow a significant increase in the rate of internal mass loss.

The aim of the invention is to increase the efficiency of the extractor by repeated grinding and deformation of the particles during the extraction process.

This goal is achieved by the fact that the known extractor is equipped with comb-shaped knives mounted on the inner surface of the body in front of each tray, and the reloading and squeezing blades are made in the form of vertical knives mounted between the knives of the body on slats that can be moved in vertical and horizontal directions.

FIG. 1 is a longitudinal section of the proposed device; in fig. 2 - the same, cross section and section.

The body I of the extractor is divided by means of vertical partitions 2 into successively located contact sections 3. A guide cylinder 4 with an annular slot 5 has a rotary tray 6 fixed on hinge 7, along the entire width of the section.

The housing 20 has a horizontal shaft 8 on which reloading and squeezing blades 10 are fixed with the help of levers 9. The blade is made in the form of vertical knives 11 and is also located along the entire width of the contact section. In the upper part of the body, in front of the rotary chute, vertical knives 12 are fixedly mounted.

30 such that fixed knives 12

11. The stationary and rotating yogas with bolts 13 Attached overlapped to the mounting plates 14 and 15. The enlarged holes in the trokhod of the bolts allow displacing the edges in the vertical and lateral etching of the gaps between the yozhas: and. When the mounting holes are symmetrically arranged in position, one or both knives can be turned in such a way that OiHH form four variants of the mutual arrangement of the cutting edges. Depending on the product properties, different degrees of deformation and grinding of particles are provided.

In each section, several reloading and squeezing blades 10 can be installed. At the same time, in order to ensure uniform load on the shaft in each subsequent section, they are shifted by a certain angle relative to the blades of the previous section.

The device works as follows.

The solid raw material is loaded into the first section, immersed in a solvent and mixed with it under the action of levers 9 and blades 10, which are rotated by means of a shaft 8. Some of the material is picked up by the knives of the reloading press 10 and rises above the liquid level. Initially, free solvent flows from the mass through the perforations in the guide cylinder 4 and the slot between the blades back into the vertical zone of the section. Upon further movement of the blade 10, the solid phase is compressed between B (growing 11 and fixed knives 12 and is freed from excess solvent, which flows into the lower part of section 3. Then the particles of solid (Product is pushed by rotating knives through slots in the fixed knives, intensively deformed. And crushed As a result, macro-transfer of recoverable substances in the pores of the particles occurs, occurs in the concealment of cramped and closed portions of the pores, due to which the extraction rate increases significantly. In accordance with dopTICI 10, the material that has passed through the rim of the fixed knives is discharged back into the contact zone of section 3. A part of the product falls onto the tray b and is directed to

next section. Then, the solid phase is again picked up by the overload blade 10, the grout of which is the cycle of drainage, pressing, deformation and grinding in this section is repeated.

In the next section, a repeated operation of contacting the solid and liquid phases, M1 repeated lifting, drainage, wringing out the deformation, grinding and overloading of the product takes place. From the last section, the waste material is discharged through the LO current and sent for further processing.

The solvent is fed to the last section, flows countercurrently to the solid product from one section to another through perforations in the partitions 2 and is withdrawn from the first section of the extractor.

Thus, the proposed horizontal sectional extractor allows an increase in the speed of the countercurrent continuous extraction process due to multiple compression, and particle size reduction in each section.

Claims (2)

1. A horizontal sectional extractor comprising a cylindrical body divided into sections by vertical partitions and equipped with guide cylinders with annular slots, swivel trays, a shaft with levers and reloading-squeezing blades, so as to increase the efficiency by increasing the phase contact noBCpXiHocTH, it is equipped with a comb, mounted on the inner surface of the casing in front of each tray, and the reloading and extracting blades are made in the form of vertical knives, copulating body between the blades. 2. The extractor according to claim 1, that is, that the knives are mounted on the slats with the possibility of being shifted “in the vertical and horizontal directions. The source of information taken into account three examinations: 1. USSR author's certificate in application number 2808558 / 23-26, cl. On 01 D 11/02, 1979 (prototype).