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Method and device for separating corn stalk bark and corn pith

A corn stalk and separation device technology, which is applied in the direction of mechanical processing of plant materials, mechanical equipment, etc., can solve the problems of corn stalk skin pith separation technology and imperfect equipment, etc., and achieve the effects of simple structure, low separation cost and high productivity.

Inactive Publication Date: 2013-06-05
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem is: through sieving, there must be some small-sized skins in the pith, and some larger-sized piths in the skin.
[0004] Therefore, the existing corn stalk husk and pith separation technology and equipment are not perfect

Method used

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  • Method and device for separating corn stalk bark and corn pith

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] The corn stalks are peeled off from the husk and pith under the impact and shear of the crushing parts of the grinder, and are crushed into a certain particle size and passed through the screen surface. The airflow formed by the grinder itself and the suction effect of the centrifugal fan The bottom enters through the connecting pipe I from the feed inlet on the upper left of the high-speed vibration separation device, and is evenly paved along the width direction of the high-speed vibration separation device to form a material layer with a certain thickness. The material is thrown up along the vibration direction under the action of vibration, and at the same time , under the action of the bottom-up sieving uniform airflow, the material is in a suspended or semi-suspended state. At this time, the light material with a small suspension speed follows the airflow from the light material outlet above the high-speed vibration separation device through the connecting pipe II ...

Embodiment 2

[0028] figure 1 The first embodiment of the corn stalk husk and pith separation device of the present invention is given, including a vertical vane pulverizer 1, a high-speed vibrating screen 4, a cyclone separator 6, an air locker 8, and a centrifugal fan 15. The vertical vane type The discharge port 2 of the pulverizer 1 is connected to the feed port 9 on the upper left of the high-speed vibrating screen 4 through the connecting pipe I3, and the light material outlet 13 above the high-speed vibrating screen 4 is connected to the feed port 14 of the cyclone separator 6 through the connecting pipe II5 Connection, the lower right side of the high-speed vibrating screen 4 is provided with a heavy material outlet 11, the lower part of the cyclone separator 6 is equipped with an air locker 8, the bottom of the air locker 8 is the separated light material outlet 10, and the top of the cyclone separator 6 Air flow and dust outlet 12 are connected with one end of connecting pipe III7...

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Abstract

The invention discloses a method for separating corn stalk bark and corn pith, which comprises the steps of: (1) crushing corn stalks, (2) separating crushed stalk barks from other light parts; (3) separating light parts of corns from air flow and dusts. The invention further discloses a device for realizing the method for separating corn stalk bark and corn pith, which comprises a crusher, a high-speed oscillating sieve, a cyclone separator and a centrifugal fan, and all the parts are connected by pipes. The device is mainly used for separating corn stalks without leaves and corn pith, or directly dividing the whole corn stalks into two parts, i.e. stalk barks and a mixture of stalk leaves and corn pith. Because the stalk barks, leaves and pith of the corns are different in components, the separation of all the parts is helpful for high-efficiency utilization, and lays a foundation for commercialized high-efficiency utilization of stalks of corns and the like.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a method and a device suitable for separating the pith of corn and sorghum straw. Background technique [0002] In recent years, the comprehensive and efficient utilization of corn stalks has become particularly prominent. Corn stalks account for 27.39% of my country's crop stalks and 46% of the collectable resources of China's crop stalks, but the comprehensive utilization rate is low. In particular, research on corn stalks as straw substitute wood and papermaking has just begun. The leaves and pith of corn stalks are rich in nutrients and are suitable for fertilizer or feed utilization, while the husks of corn stalks are rich in cellulose, hemicellulose and lignin, suitable for energy or straw instead of wood utilization. Only by separating the leaves, husks and pith of corn stalks can they be classified and utilized to achieve the purpose of efficient utiliz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27J7/00
Inventor 朱新华杨中平郭文川郭康权查峥
Owner NORTHWEST A & F UNIV
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