Device and method for separating skin and pulp of straw

The technology of a separation device and a separation method is applied in the field of separation device and axial flow drum, and can solve the problems of inability to use the harvester, occupying a large space, and large damage to the outer skin of the straw.

Active Publication Date: 2013-04-17
SHANDONG TRALIN PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods all use extrusion between rollers to achieve separation, which requires a combination of multiple rollers or equipment, takes up a lot of space, and cannot be used on harvesters
Moreover, there are problems such as insufficient separation, large damage to the straw skin, and too complicated mechanical structure.

Method used

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  • Device and method for separating skin and pulp of straw
  • Device and method for separating skin and pulp of straw
  • Device and method for separating skin and pulp of straw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A corn stalk husk separation device includes an axial flow drum and a sieve. The sieve e is arranged below the drum d along the length of the axial flow drum d. There is a gap between the drum and the sieve, and the gap forms a straw separation space. Such as Figure 9 shown. The spiral deflector 17 on the harvester frame 11 and the inner surface of the sieve e form a roughly cylindrical tube concentric with the axial flow drum d, and a straw separation space is formed between the cylindrical tube and the outer surface of the axial flow drum d. The sieve is a semicircular grid-like frame structure, and the holes of the grid-like frame formed are long holes of 3cm×3.4cm, which are suitable for falling irregular lumpy crumbs and flake-like leaves. Such as Figure 6a with 6b shown. There is a gap of 5mm between the drum and the sieve. The axial-flow roller includes a supporting disc A1, a gear bar A2 and spikes A3. The gear bar A2 is a strip plate fixed on the outer c...

Embodiment 2

[0073] Others are the same as embodiment 1, the difference is:

[0074] The gear bar A2 is a long circular tube, and the gap between the drum and the sieve is 10mm.

[0075] The corn stalk husk separation device also includes an anti-blocking device. The anti-blocking device is composed of a cleaning drum and a rotating shaft a1. The cleaning drum is composed of a sleeve a2 and round steel teeth a3 distributed on the circumference of the sleeve. The cleaning drum and the rotating The shaft is connected by set screw a4. Such as Figure 7 shown. The anti-blocking device is installed in the gap below the sieve. Such as figure 2 with Figure 8 shown.

[0076] If the leaves and husks of the straw are wet, the irregular lumpy husks and small pieces of leaves produced by the action of the drum and the sieve may adhere to the inner wall of the harvester after they leak through the sieve. The accumulation of sieve will block the sieve holes, resulting in weakened separation effe...

Embodiment 3

[0084] Others are the same as embodiment 1 or 2, the difference is:

[0085] There is a gap of 15mm between the drum and the sieve.

[0086] The corn stalk husk separation device also includes a straw husk dispersing device, which is installed at the exit of the harvester through bolt connection. The straw husk dispersing device is composed of a shell b1, a rotating shaft b3 and a breaking leaf b2, and the rotating shaft b3 and the dispersing blades b2 are installed in the casing b1; a sleeve is installed on the rotating shaft, and the dispersing blades are evenly distributed on the sleeve. Such as Figure 8 shown. The sleeve and the rotating shaft are connected by a key, and other connection methods are also available.

[0087] A method for separating corn stalk husks, comprising the following steps:

[0088] 1) The harvested corn stalks enter the drum;

[0089] 2) The drum rotates at a high speed, and the rotating speed of the drum is 900r / min. With the cooperation of t...

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Abstract

The invention relates to an axial flow roller for separating skin and pulp of a straw and a separation device with the axial flow roller and belongs to the field of agricultural machinery. The device for separating the skin and the pulp of the straw comprises the axial flow roller and a screen, the axial flow roller comprises a round supporting disc, rack bars and spike teeth, the rack bars are fixed on the circumference outside the round supporting disc, and the spike teeth are fixed on the rack bars; the screen is arranged below the roller along the length of the axial flow roller, and a gap is reserved between the roller and the screen and forms straw separation space. The device for separating the skin and the pulp of the corn straw can be directly installed on a harvester so that when corn is harvested, simultaneously, the corn straw can be separated into elongated straw outer skin, irregular block pulp and small sheet leaf blades to be discharged, the elongated straw outer skin, the irregular block pulp and the small sheet leaf blades are dried and classified to be used, and utilization values of the straw are improved.

Description

technical field [0001] The invention relates to an axial flow drum for separating straw husks, a separation device including the axial flow drum, and a method for separating straw husks using the separation device for straw husk separation, belonging to the field of agricultural machinery. Background technique [0002] The current corn harvester adopts the method of crushing corn stalks and returning them to the field, which is used as fertilizer after crushing. However, corn stalks are divided into several parts: straw skin, pulp, and leaves. Among them, the pulp and leaves can be used as land fertilizer after decay. The main component of the outer husk is fiber, which takes a long time to rot and cannot improve the soil. After the corn stalks are crushed and returned to the field, the soil is easy to swell and reduce the water storage capacity of the soil. Underused. Corn stalks can be used as raw materials for papermaking. If the husk, pulp and leaves of corn stalks are ...

Claims

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Application Information

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IPC IPC(8): A01D45/02A01D43/00B07B1/04B07B1/50
Inventor 华新生田明德黄洪星赵士峰宋占勇李海军崔春青任淼
Owner SHANDONG TRALIN PAPER
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