RU2038808C1 - Method of granulated fodder production - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: method involves granulation of grass flour after preliminary addition of binder substance a composition consisting of 20-30% aqueous lignosulfonates solution with trace elements (copper and/or zinc) at copper content in lignosulfonate 0.026-0.07% and zinc content 0.13-0.35% EFFECT: improved method of fodder production. 3 tbl

Description

 The invention relates to agriculture, in particular to feed production, and can be used to obtain pellets and briquettes of feed.

A known method of preparation of compressed feed using as a binder sapropel extracted from ponds and containing 30-40% dry matter, vitamins, macro- and microelements [1]
The disadvantage of this method is the instability of the composition of the binding agent, the impossibility of its regulation, the complexity of the extraction and preparation of sapropel for use.

Closest to the claimed method according to the technical essence and the achieved result is a method of granulating feed from green plants using molasses as an aqueous binder [2]
However, the use of molasses as a binder increases the density of the granules above 1 g / cm ³ and crumbling decreases only to 24% and, in addition, it is an expensive and scarce food product.

 The aim of the invention is to improve the quality of granules, their nutritional value.

The goal is achieved in that in the method of granulating feed by mechanical processing with the introduction of a binder, as a binder use compositions in the form of a 20-30% aqueous solution of lignosulfonates with trace elements copper and / or zinc with a copper content of 0.026- in the lignosulfonate 0.07% and zinc 0.13-0.35%
PRI me R. Granules were made from a homogeneous batch of green mass of afternoon clover meadow, dried on a high-temperature drum-type aggregate, milled on a hammer mill and through a pipeline, cyclone, hopper and batcher fed into a continuous mixer. The process of pressing with binders was carried out on equipment for granulation using a humidification system to supply binders to herbal flour. To do this, instead of water, various binders were poured into the supply tank of the humidification system and fed through a supply valve to the press-granulator dosing mixer. In the batch mixer, the herbal flour with the help of a continuous paddle mixer was intensively mixed with the binder coming in and fed into the press. In the press, a mass homogeneous in moisture and fractional composition was pressed by rollers through cylindrical pressing channels, as a result of which dense and solid granules were obtained. The amount of supply of binders was regulated using a supply valve depending on the moisture content of the pressed raw materials. The optimum moisture content for pressing is 15-17%. The standard moisture content of herbal flour is 8-12%; therefore, from 5 to 15% binders were added to make it optimal for pressing, the average moisture content of which was 70%. In practice, the supply of binders was regulated depending on the appearance of granules, which with sufficient moisture are strong, with a smooth shiny surface. When leaving the matrix, the granules were cut off with a special knife mounted at the exit from the press and cooled.

 In order to control the quality of the raw materials for pressing during the entire granulation time with an interval of 0.5 h, single samples of grass flour weighing about 1 kg were taken from the hopper, of which three averaged samples were taken for laboratory analysis after thorough mixing after thorough mixing. To determine the effectiveness of the various binders, batches of granules were made with each of them, which were taken directly at the outlet of the granulator for 30 minutes after establishing the optimal granulation mode, determined by the appearance of the granules. Of these batches in triplicate, sample averaging of 1 kg was made to determine the quality of granulation and laboratory analysis.

After the preparation of the granules, the compositions of lignosulfonates with trace elements of copper and / or zinc were used as binders with a mass fraction of copper in the binder of 0.026-0.07% zinc 0.13-0.35% of lignosulfonates of copper and zinc with a mass fraction of copper and zinc 0.156-0.420 %
The control was granules prepared without the use of binders and using molasses diluted with water to a dry matter concentration of 30%
The introduction of compositions based on copper and / or zinc lignosulfonates during granulation of grass flour from clover aftermath made it possible to provide a higher degree of compressibility and reduce the proportion of non-pressed residues (table 1), in comparison with pressing without binders and with molasses (according to the prototype).

 At the same time, the mechanical strength of the granules increased significantly (table. 2).

 The advantages of the composition based on copper and / or zinc lignosulfonates were also manifested in improving the chemical composition of the granules obtained with their use (Table 3). In comparison with granules without binders and with molasses, the content of protein, fat, carotene and corresponding trace elements increased and the content of crude fiber decreased, which increased their energy value.

 The proposed method can be used in the preparation of granules and briquettes from other feeds, including hard-pressed ones.

Claims (1)

 METHOD FOR PRODUCING GRANULATED FEED, providing for mechanical processing of the feedstock and granulating it with the introduction of a binder, characterized in that the compositions in the form of a 20 30% aqueous solution of lignosulfonates with trace elements of copper and / or zinc at a concentration of copper in lignosulfonate are used as a binder 0.026 0.07 wt. and zinc 0.13 0.35 wt.

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