SU1375272A1 - Apparatus for percolation hydrolysis of vegetative raw material - Google Patents

Abstract

The invention relates to an apparatus for the hydrolysis of plant raw materials and can be used in the hydrolysis industry. The purpose of the invention is to intensify the hydrolysis process and increase the productivity of the hydrolysis apparatus. The device has perforated bottom plates.

Description

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The connecting pipes 6, 7 of different lengths, mounted on the top cover 2 of the apparatus, and perforated filter tubes 4, 5 installed diametrically opposite the perforated feed tubes, fixed on the upper edge of the apparatus and made of the same i of the same length with opposite perforated feed tubes. Moreover, perforation

on perforated mutually opposite filter and feed pipes are made at the same level in height. In addition, the perforated feeding and filtering pipes are made removable and not fastened to each other and to the housing of the apparatus, the perforated filtering and feeding pipes have a connector along their length. 2 Il.

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The invention relates to an apparatus for the hydrolysis of plant raw materials and can be used in the hydrolysis industry.

The purpose of the invention is to intensify the hydrolysis process and increase the productivity of the apparatus.

FIG. 1 is a schematic representation of the apparatus of a longitudinal section in FIG. 2 is a sectional view of FIG.

The apparatus consists of a cylindrical body 1 with an elliptical cover 2 and a conical bottom 3. Inside the apparatus are installed filter tubes 4, reaching the lower conical bottom, and shortened 5, lowered 2/3 of the length of the cylindrical part of the apparatus. Diametrically opposite to the filtering pipes, the feeding pipes 6 and 7 are located, respectively, of the same length with them. The feeding and filtering tubes are lowered inside the apparatus through fittings 8 on the lid. apparatus. The lower ends of the filtering and feeding pipes are perforated, and the height of the perforations of the diametrically arranged filtering and feeding pipes are the same. Filter beams / 9 are installed in the lower cone to supply heating steam and take out the hydrolyzate during spinning.

On the lid of the apparatus there are nozzles: for loading the raw material 10, supplying cooking acid 11, taking out the hydrolyzate during percolation 12.

In the lower cone, nozzles 13 are installed for unloading lignin and 14 supplying heating steam and squeezing the hydrolyzate.

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The device works as follows.

Plant material is loaded through the nozzle 10 into the apparatus and, at the same time, cooking acid is supplied through the nozzles 11 and the feed tubes 6 and 7 for wetting the feedstock. After loading the raw material, the apparatus is closed with a lid, and through fitting 14 and the filter 9, the beams 9 serve as a hot steam for heating. After the raw material is warmed up and the pressure in the apparatus is increased, the steam supply is stopped and the supply of cooking acid starts through fittings 11 and supply pipes 6 and 7 with simultaneous removal of hydrolyzate through filtering pipes 4 and 5. At the beginning of the percolation process, the cooking liquid tubes and hydrolysis are taken through all filter tubes. In order to percolate the cooking liquor, they begin to feed only into the longer supply pipes 6 and, accordingly, select the hydrolyzate from the filter pipes 4 of the same length.

After percolation, hot water is fed into the apparatus and the remaining hydrolyzate is displaced and the lignin is washed at the same time. Then, the lignin is squeezed out, taking out the washed water through the beams 9 and nozzle 14. The lignin is discharged from the apparatus through the nozzle 13.

The technical advantage of the proposed apparatus in comparison with the known ones is that.

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provides an intensification of the hydrolysis process and an increase in productivity due to the installation of filtering and feeding pipes, which ensures that the percolation process is carried out along the zones of the apparatus in the horizontal and vertical directions. This organization of flows allows the process to run at high speeds and to ensure a more complete use of the raw materials. This also reduces the cooking time and thereby increases productivity. Productivity is also increased by reducing the time for disassembling and cleaning the filter and feed tubes.

Claims (1)

Invention Formula A percolation hydrolysis apparatus for plant materials, comprising a housing with a lid and a conical 0 five 0 perforated filter tubes, a feed tube fixed on the housing lid, feed supply pipes, cooking acid, selection of hydrolyzate and lignin discharge, characterized in that, in order to intensify the hydrolysis process and increase the productivity of the apparatus, it is equipped with additional perforated feed tubes of different lengths, fixed on the lid of the apparatus, and perforated filter tubes are fixed on the lid of the device, arranged diametrically opposed to the perforated feed tubes and ends enes same located opposite to the perforated feed pipes, the perforations in the mutually opposite filter and podakschih pipes made flush adjustment.