Straw pelleting process

A straw and granulation technology, which is applied in the direction of die extrusion granulation, animal feed, animal feed, etc., can solve the problems of difficult storage of straw, achieve good granulation effect, increase density, and facilitate large-scale popularization and application.

Inactive Publication Date: 2012-11-07
ZIBO SENYUAN STRAW ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is: to provide a straw granulation process that can recycle straw, has high granulation density and good eff

Method used

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with embodiment:

[0017] The stalk granulation process among the present invention comprises the following steps:

[0018] The straw granulation process is as follows:

[0019] 1. Cut crop stalks with a hay cutter or other shearing devices to obtain crushed stalks with a length of 20-100mm or less, and then enter the silage tank for silage fermentation;

[0020] 2. Send the crushed straw to the three-cylinder dryer for drying treatment, so that the moisture content of the crushed straw is controlled at 9-15%;

[0021] 3. Finely pulverize through a large hammer mill and get straw fibers with a particle size of 40-150 mesh through an air-conveyed dust removal system;

[0022] 4. Transport the straw fiber to the ring die granulator, and use the ring die and pressure roller to form it. During the pressing process, the particle density and output can be controlled by adjusting the gap between the pressur...

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Abstract

The invention belongs to the field of processing and application of straw and particularly relates to a straw pelleting process. The process mainly comprises the steps of 1), performing coarse grinding and feeding the ground straw into an ensiling pool to perform ensiling fermentation treatment; 2), drying to obtain ground straw with the water content of 9-15%; 3), performing fine grinding to obtain straw fiber with the particle size of 40-50 meshes per square inch and placing the straw fiber into a storage bin for storage through an air-assisted dust removal system; 4), pelleting, conveying the straw fiber to a ring die pelleting machine and performing compression molding by using a ring die and a compression roller to obtain rodlike straw particles with the density of 1-1.2g/cm3; and 5), performing cooling molding, placing the compressed straw particles into a cooler and cooling the straw particles to the room temperature through air cooling to obtain formed particles with smooth surfaces. According to the process, the straw is used fully, the pelleting effect is good, and the formed straw particles are smooth in surface and free from obvious cracks, are clean energy, can be used as base materials for culture of fungi or supplementary feed of livestocks and are convenient to popularize and apply in a large scale.

Description

technical field [0001] The invention relates to a straw granulation process, which belongs to the field of straw processing and application. Background technique [0002] As waste corn stalks in rural areas are usually crushed and returned to the field or harvested and stacked, they occupy a large area and are difficult to store. When the weather is dry, it is easy to bring safety hazards; The sowing of wheat, so some places usually use incineration for disposal, but incineration will cause a huge air pollution, which is now banned. In order to reuse these straws, some places use a granulator to granulate the straws. However, since the main components of straw are cellulose, hemicellulose and lignin, lignin is a structural monomer with aromatic characteristics and an amorphous substance that exists in the lignified tissue of plants. At the same time, the lignin in the straw is not tightly combined with the cellulose, so the granulation effect is not good, and it is easy to...

Claims

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Application Information

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IPC IPC(8): B01J2/22A23K1/14
Inventor 宋苓元宋丰好郑晓武
Owner ZIBO SENYUAN STRAW ENERGY DEV
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