Apparatus and method for producing high-energy fiber forage grass through steam explosion technology

Abstract

The invention discloses an apparatus and method for preparing high-energy fiber forage grass through the steam explosion technology, and belongs to the technical field of straw utilization. The methodcomprises the following steps: first crushing straws and removing impurities, then filling crushed straws into a steam explosion tank, introducing saturated steam, maintaining a certain pressure fora certain period of time, then exploding out the straws to produce high-energy fiber forage grass, and then adding other beneficial special microorganisms and auxiliary materials to produce compositehigh-energy fiber forage grass. The steam explosion apparatus comprises the steam explosion tank, wherein a hydraulic oil cylinder is connected with a triangular cone through a steel wire rope, the triangular cone can move up and down and can close a material inlet when moving to the highest position, a material outlet is equipped with a pneumatic hard seal hemisphere valve, and a steam inlet, a pressure detection instrument, a temperature detection instrument, a safety valve and the like are additionally arranged. The straws are disinfected and sterilized in the steam explosion tank, the pesticide residual toxicity is decomposed, and lignin and cellulose are softened and partially degraded; and a pressure is suddenly relieved, so that the whole structure of the straws is torn and loosened, the absorption and digestion of cattle and sheep are facilitated, and therefore the digestibility and nutritional value of straw feed are improved. The apparatus and method have the advantages of being simple in technological process, simple in apparatus structure, low in cost, high in economic benefits, and easy to industrialize.

Description

technical field [0001] The invention relates to the technical field of straw utilization, in particular to a device and method for producing high-energy fiber forage grass using steam explosion technology. Background technique [0002] In recent decades, my country's grassland resources have been severely degraded. The grass yield in the northern grasslands has dropped by 30-50% compared with the 1950s. It is unbearable for the existing livestock. The supply of forage grass in my country has reached a serious shortage. And my country is the country that consumes the most sheep and cattle products in the world, and the market demand is huge. Therefore, the lack of perennial and balanced high-quality forage guarantee and supply is the bottleneck problem for the development of my country's sheep and cattle breeding industry. Crops have a short growth cycle and a large yield, and straw as an agricultural by-product is an inexhaustible renewable resource. Straw is rich in fiber,...

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Problems solved by technology

In these two patents, the steam explosion tank receives straw wet material, the processing process is complicated, and the production cost is high.

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