RU2542530C1 - Dried beet pulp production method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: dried beet pulp production method involves stages of squeezing, granulation, active ventilation and drying. After squeezing with usage of a deep squeezing press, pulp is granulated in a rotation press. Then the main part of moisture content is removed from the pulp granules by way of active ventilation with atmospheric air till the pulp moisture content is equal to 20-25 %. Then one performs additional drying in drying installations till the moisture content, as required by GOST, is less than 13%.

EFFECT: invention allows to increase drying installation performance and process all the pulp generated at the enterprise into a fodder product.

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Description

The invention relates to the sugar industry and is aimed at reducing costs in the production of dried beet pulp, corresponding to GOST 13456-82 (dried pulp for export).

A known method for the production of dried beet pulp with the required GOST humidity of less than 13%, including the stage of extraction, drying and granulation.

A known method of obtaining dried pulp requires a large consumption of thermal energy, which increases the cost of the final product.

The aim of the invention is to reduce production costs, increase the productivity of drying equipment, complete processing of all the pulp formed at the enterprise into valuable feed for farm animals and raw materials for the production of pectin, as well as the prevention of adverse environmental consequences arising from the unauthorized entry of raw pulp and pulp water into environment.

The method consists in the fact that obtaining dried pulp is carried out in four stages:

1) spin;

2) granulation;

3) active ventilation;

4) drying.

The spin phase is carried out on deep-presses (Babbini PB32FS or others).

The granulation stage is carried out on rotary presses (PB-5 or others). The rotary press is also a granulator.

Granulation is necessary to create air cavities (duty cycle) in the pulp mass, which makes subsequent active ventilation possible.

Active ventilation of granulated pulp is carried out with atmospheric air using ventilation units (SVU-63 or others) used for ventilation of crop products. At the stage of active ventilation, the bulk of the moisture is removed from the pulp granules.

The drying step is carried out in a pulp dryer (ZUP-NYSA or others) used for drying beet pulp.

Drying the pulp with a moisture content of 20-25% to a value of less than 13% in drying plants takes significantly less time than from 70-74% to the same value of less than 13%. For this reason, the productivity of drying equipment is significantly increased. This allows you to completely convert all the pulp formed at the enterprise into valuable feed for farm animals and prevent adverse environmental consequences arising from the unauthorized release of raw pulp and / or pulp water into the environment.

Table 2. Fuel consumption for drying pulp

Fuel consumption for drying the pulp by the claimed method is 18.9 times less than by the previously known method. This provides a lower cost of dried pulp and high profitability of its production according to the claimed method.

The pulp obtained by the claimed method fully complies with GOST 13456-82 (dried pulp for export).

Claims (1)

A method of obtaining a dried beet pulp, including the stages of extraction, drying and granulation, characterized in that the production of dried beet pulp is carried out in four stages:
1) spin;
2) granulation;
3) active ventilation;
4) drying
moreover, after pressing in a deep press, the pulp is granulated on a rotary press, then the main part of the moisture is removed from the pulp pellets by active ventilation with atmospheric air to a pulp moisture of 20-25%, and then dried in drying plants to a moisture content of less than 13% required by GOST.