A preparation device for crop straw feed

Abstract

The invention discloses a crop straw feed preparation device. The crop straw feed preparation device comprises a straw storage chamber, a discharging port, a material elevating conveyor, a feeding hopper, a straw smashing chamber, a straw powder mixing chamber and a movable screening and discharging device. A discharging port is mounted at the bottom of one side of the straw storage chamber. Conveying stability of the preparation device is effectively improved, particle size uniformity of straw feed can be guaranteed by vibratory screening and discharging, spaces of the straw smashing chamberand the straw powder mixing chamber are adjusted by the movable screening and discharging device, a sufficient smashing space of the smashing chamber is guaranteed at an early stage of straw feed preparation by down moving of the movable screening and discharging device, and a sufficient mixing space of the mixing chamber is guaranteed in a late stage of straw feed preparation by upward moving ofthe movable screening and discharging device, so that space utilization efficiency of the preparation device is improved, the size of the preparation device is reduced, and cost and occupied area of the straw feed preparation device are reduced.

Description

Technical field: [0001] The invention relates to the technical field of agricultural machinery, in particular to a preparation device for crop straw feed. Background technique: [0002] Straw is the general term for the stems and leaves (ears) of mature crops. It usually refers to the remaining part of wheat, rice, corn, potato, rapeseed, cotton, sugar cane and other crops (usually coarse grains) after harvesting the seeds. More than half of the photosynthetic products of crops exist in straw, which is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc. It is a multi-purpose renewable biological resource that contains more water and sugar. It is a good feed material, especially corn straw, wheat straw and so on. Straw can be prepared into straw feed by crushing and mixing additives. However, in the existing straw feed preparation device, the preparation of crushing and preparation of the mixture are carried out in the crushing device and th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation device for crop straw feed in order to solve the above problems, which solves the problem that the existing straw feed preparation device is prepared to crush and prepare mixed materials step by step in the crushing device and the mixing device, The equipment volume of the preparation device is large, the cost of the preparation equipment is high, and the floor area is large; and it is difficult to uniformly control the particle size of the straw feed, etc.

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