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Method for preparing straw granulated feed by spraying under vacuum

A technology of pellet feed and straw, applied in the direction of animal feed, animal feed, application, etc., can solve the problem of loss of heat-sensitive nutrients, and achieve the effect of improving the nutritional content of straw, saving grain, and reducing the content.

Inactive Publication Date: 2012-04-25
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of the loss of most of the heat-sensitive nutritional components after straw feed granulation, the present invention provides a method for preparing straw pellet feed by spraying after vacuum

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Preparation of corn stalk pellet feed

[0019] The corn stalk raw material is deslimed and air-dried to a moisture content of 15%, and then coarsely crushed with a straw grinder. The length of the crushed corn stalk is 2-4 mm; 4.0%, 5.0%, and 3.0% by weight in sequence, and dissolved in 100 mL of water), the composite biochemical reagent was placed at 30°C for 7 days; : 1 to carry out batching, and add 20% water to stir evenly, and obtain corn stalk pellet feed through pellet forming machine, and the particle size is controlled within 10 mm. Finally, the above-mentioned corn stalk pellet feed was used to obtain corn stalk pellet feed through a vacuum spraying machine (production rate 200 kg / h) under the condition of vacuum degree of 0.06 MPa and liquid additive spraying amount of 1000 mL / h, and packaged , Store away from light.

Embodiment 2

[0020] Embodiment 2: Preparation of wheat straw pellet feed

[0021] The wheat straw raw material is deslimed and air-dried until the moisture content is 15%, and then coarsely crushed by a straw grinder, and the length of the crushed wheat straw is 1-3 mm. Afterwards, the straw powder and wheat flour were batched according to the weight ratio of 3:1, and 20% water was added and stirred evenly, and the wheat straw pellet feed was obtained through a pellet forming machine, and the particle size was controlled within 8 mm. Finally, the above-mentioned wheat straw pellet feed was used to obtain wheat straw pellet feed through a vacuum spraying machine (production rate 200 kg / h) under the condition of vacuum degree of 0.07 MPa and liquid additive spraying amount of 800 mL / h, and packaged , Store away from light.

Embodiment 3

[0022] Embodiment 3: Preparation of rice straw pellet feed

[0023] The rice straw raw material is deslimed and air-dried to a moisture content of 15%, and then coarsely crushed with a straw crusher. The length of the rice straw after crushing is 3-5 mm. After that, add 1 g of compound biochemical reagent composed of urea, lime, and salt (proportioned by weight percentage, 4.0%, 5.0%, and 3.0%, dissolved in 100 mL of water) to 10 g of rice straw powder, and place it at 35 °C. 5 d: Straw powder and rice powder were mixed according to the weight ratio of 3:1, and 20% water was added. After stirring evenly, the rice straw pellet feed was obtained through a pellet forming machine, and the particle size was controlled within 6 mm. Finally, the rice straw pellet feed prepared above was used to obtain rice straw pellet feed through a vacuum spraying machine (production rate 200 kg / h) under the condition of vacuum degree of 0.08 MPa and liquid additive spraying amount of 1500 mL / h, an...

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Abstract

The invention relates to a method for preparing a straw granulated feed by spraying under vacuum. The method comprises the following steps of: removing mud from crop straw, airing, and crushing to form powder of less than 5 millimeters; adding a composite biochemical reagent in a weight ratio of 10:1, and performing pretreatment for 3 to 7 days; mixing the crushed straw which is subjected to pretreatment and corn meal in a weight ratio of 3:1, adding water, stirring uniformly, and conveying the mixture into a granule forming machine to prepare the straw granulated feed; and spraying by using a vacuum spraying machine, and obtaining the product. In the method, due to the adoption of a mode of granulating before nutritional ingredients are added, the loss of heat-sensitive ingredients of the product in the processes of processing, storage and transportation is reduced, a nutritional preparation added into the product is stored fully, the uniformity of the ingredients in the granulated feed is ensured, the nutritive value of the straw can be improved substantially, the feed intake of livestock is increased, the waste of straw resources is avoided, and the consumption of refined grainis reduced.

Description

technical field [0001] The invention relates to a feed processing method, in particular to a method for preparing straw granular feed by vacuum spraying. Background technique [0002] my country is rich in crop straw resources, with an annual output of nearly 750 million tons. At present, the effective utilization of straw resources is not optimistic, about 13% is used as feed, 12% is used for papermaking, and 25% is used as fuel; about 50% of the resources are directly returned to the field, burned or discarded, which wastes resources and pollutes the environment. Effective feeding of straw is very necessary for the development and utilization of straw. Straw is rich in nutrients and is a very nutritious energy feed raw material. However, its high crude fiber content, low crude protein, crude fat, and sugar content are not suitable for feeding livestock and poultry directly as feed, which limits its use. Application in animal diets. [0003] Many scholars at home and ab...

Claims

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Application Information

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IPC IPC(8): A23K1/14
Inventor 任广跃杜晓彦段续张仲欣郭香凤张玉先
Owner HENAN UNIV OF SCI & TECH
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