SU1689449A1 - Method for stock preparation - Google Patents

Description

The invention relates to light industry and allows you to simplify the process, increase its efficiency and environmental safety while improving the quality of trusts and fibers. The chamber is filled with water, then a sieve is placed in the chamber above the water surface

chatsy pallet with raw materials. The camera is closed with a lid that does not interfere with the free moisture and mass transfer with the environment. Then turn on the heater. Water heated to a temperature of 5055 ° C evaporates, provides relative humidity of air in the chamber, and consequently, in the processing zone of raw materials, equal to 100%, and a constant temperature in the bioprocessing zone, equal to 36-38 ° C. Water vapors, the stranded stalks of the material being processed, are condensed on the inner surface of the lid, irrigating the processed material from above and ensuring uniform moistening throughout the entire biological treatment process. 1 il.

The invention relates to the biological processing of materials, in particular to the biological processing of bast crops, and can be used to obtain trusts from flax, hemp and other bast crops.

The aim of the invention is to simplify the process, increase its efficiency and environmental safety while improving the quality of trusts and fibers.

The drawing shows a device for implementing the method,

The device consists of a chamber G, which is partially filled with water, a grid pallet 2, where the processed raw materials (for example, flax) 3 are placed, heaters 4 and covers 5.

The method is as follows.

Chamber 1 is partially filled with water. Then, a lattice pan 2 with raw materials is installed in the chamber above the surface of the water and the lid 5 is closed with it, which does not interfere with free moisture and mass transfer with the environment. After that include the heater 4, heating the water. Water heated to 50-55 ° C evaporates, providing relative humidity of air in chamber 1, and therefore, in the zone of raw material processing, equal to 100%, and constant temperature in the processing zone, equal to 36-38 ° C. These conditions provide the most intensive vital activity of the pectin-decomposing microflora. Water vapor permeating the stems of the processed material is condensed on the inner surface of the lid 5, irrigating the processed material from above and ensuring uniform wetting during the whole process of biological treatment.

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1689449 A1

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The initial characteristics of the straw are as follows: the length is handstone 74 cm, the content of bast is 28%, the strength of bast at breaking is 24 kg, suitability is 0.7, the color is yellow (group 2). fiber detachable ™ from wood. As a result of testing, flax stalks are obtained, which characterize the separability:

3.8 - after 48 hours (corresponds to an unfinished trust):

4.5 - after 72 hours (corresponds to the trust of a normal cage);

5.6 - after 96 h (corresponds to the normal retrieving trust).

The fiber of the trusts has a tensile strength of 120N (12 kg) and a flexibility of 70 mm.

In accordance with GOST 24383-80, the trust received is estimated at 1.25.

The yield of long fiber is 15-17%.

The test results showed that when preparing the trusts using the proposed method, the biotreatment process can be completed in 72-96 hours. The process requires minimal water consumption (only for evaporation), there is no waste water requiring purification costs, the fiber obtained from the trusts is of improved quality.

Claims (1)

Claim The method of preparation of trusks from the stems of bast crops by keeping the stems under constant temperature and humidity conditions ensuring the vital activity of the pectin-decomposing microflora, characterized in that, in order to simplify the process, increase its efficiency and environmental safety while simultaneously improving the quality of the trusts and fibers, the stems are kept above surface of evaporating water heated to 50-55 ° С, with free moisture and mass transfer with the environment and relative humidity of the environment of 100%.