Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for separating straw haulm

A technology of stem-leaf separation and straw, which is applied in the direction of agricultural machinery and tools, crop processors, cutters, etc., can solve the problems of leaf removal rate, straw moisture content and impact resistance, short service life of steel wire rope, and insufficient separation effect Ideal and other issues, to achieve the effect of convenient large-scale continuous operation, wide application range and low separation cost

Inactive Publication Date: 2010-01-27
NORTHWEST A & F UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results show that this method is feasible, but the leaf removal rate is greatly affected by the moisture content and impact resistance of the straw, and the primary separation rate is low (less than 80%)
Moreover, the service life of the wire rope is relatively short, and the separation effect is not ideal.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for separating straw haulm
  • Method and apparatus for separating straw haulm
  • Method and apparatus for separating straw haulm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 A kind of device for separating stem and leaf of straw

[0053] Further illustrate device of the present invention in conjunction with accompanying drawing, it comprises feed chute 2, lower pressure roller 3, frame 4, motor 9, discharge chute 10, blower fan 11, winnowing device 12, stripping leaf roller IV, stripping leaf Roller II, leaf stripping roller III, leaf stripping roller I, upper pressure roller 19, material management roller 21 are formed, described upper pressure roller 19 and lower pressure roller 3 are symmetrically installed on the loading plate 4a of frame 4 up and down, so Described leaf stripping roller IV and leaf stripping roller II, leaf stripping roller III and leaf stripping roller 1 are symmetrically installed on the leaf stripping roller support 4c and 4b of frame respectively, and leaf stripping roller II and leaf stripping roller I, leaf stripping Between the roller IV and the leaf stripping roller III, connect with the leaf strip...

Embodiment 2

[0062] Embodiment 2 A kind of method for separating stem and leaf of straw

[0063] 1. The process route of flattening and rolling method is:

[0064] Raw materials of straw→removing tips→single-layer flattening→grinding→cleaning→separation of stems and leaves

[0065] 2. Material selection

[0066] The raw material of straw is corn straw produced in Yangling area, Shaanxi Province, with an average plant height of 215cm, an average root circle diameter of 2.7cm, a moisture content of 19.5%, and an average leaf content of 42.7%.

[0067] 3. Specific operation steps

[0068] ①Remove the tips: Use a hay cutter to cut off the tips of 10-80cm in batches. In this embodiment, 30 cm of tip is removed.

[0069] ②Single-layer flattening: Manually spread 1~several straws 1 after the tip removal in parallel in the feeding trough 2 along the feeding direction, with the root of the straw facing forward, and gently push it to touch the material roller 21. Under the action of the materia...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a straw stem and leaf separation method and equipment, and relates to the agricultural machinery field. The chemical components and the mechanical property between the stem and the leaf are greatly different, and the mixed utilization can reduce the performance and the quality the product. The invention can cut the small ends of the straw in batches, the straw is paved into a single layer to be pressed flat, and is grinded and twisted to enable the leaves to be broken from the stems, and finally the stem and leaf separation can be realized through the combination of combing and brushing and air selection. The equipment of the invention comprises a material feeding mechanism, a pair of pressing rollers, two pairs of leaf ripping rollers, a cleaning mechanism, and a material discharging mechanism, a driving mechanism, and a machine frame. The invention is more particularly suitable for the stem and leaf separation of corn and durra stalks, the process is simple, the cost is low, and the invention is convenient for scale and continuous operation. Because the straw can be pressed flat without influence to the consequent processing and utilization, even to be advantageous to the following processing and utilization, the invention enables the stem and leaf separation rate to be high, and the invention brings convenience to the industrialized use of the straw resources.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and relates to a method and a device suitable for separating stems and leaves of corn and sorghum stalks. Background technique [0002] my country can produce more than 700 million tons of straw every year. In recent years, on-site burning of straw has become more and more serious, and the smoke produced has become a major social hazard. With the increasing urgency of global energy and environmental protection issues, the development and utilization of crop straw, a biomass resource, has attracted great attention at home and abroad. With the deepening of research, the application of renewable straw resources is becoming wider and wider, and the scale is getting bigger and bigger. Straw can replace wood to make paper, produce fiberboard, composite board, light wall, composite doors and windows, heat insulation board, packaging tray, and also replace foam plastic to produce disposable tablew...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01D82/00
Inventor 朱新华郭文川郭康权党小选刘永利王翔
Owner NORTHWEST A & F UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com