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A method and device for pretreating crop straw

A crop straw and pretreatment technology, which is applied in water/steam pretreatment, botany equipment and methods, agriculture, etc., can solve the problem of operating efficiency of guillotine cutting device and prolonging operating time, affecting the overall efficiency of operation, unstable machine operation, etc. problems, to achieve the effect of improving work safety, improving cutting efficiency, and continuous and reliable feeding

Active Publication Date: 2018-12-11
南京普渃斯派生态环境研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing guillotine cutting devices are double-feeding roller shaft structure. During the operation of compacting straw, "pressure leakage" may occur, so that the uncompacted straw directly enters the guillotine cutting device, causing the guillotine to be cut. The operation efficiency of the device and the extension of the operation time, the existing guillotine cutting assembly is prone to uneven wear of the blade, the cutting quality is not high, and the grass section is prone to oblique rubbing, resulting in unstable operation of the machine and affecting the overall efficiency of the operation

Method used

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  • A method and device for pretreating crop straw
  • A method and device for pretreating crop straw
  • A method and device for pretreating crop straw

Examples

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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a method for pretreatment of crop stalks, comprising the following steps:

[0037] A. Use the crop straw cutting device to cut the crop straw to be treated, and cut it into small sections with a length of 10-19 cm for later use;

[0038] B. Carry out infiltration treatment on the crop stalks cut in step A, that is, put the small crop stalks with a length of 10-19 cm into the water tank 7, add water in the water tank 7 at a ratio of 1:1, and soak for 24 hours ;

[0039] C, put the crop stalks after soaking treatment in step B into the steam explosion tank 8, feed saturated hot steam into the steam explosion tank 8, boost the pressure to 0.6 MPa, 1.0 MPa and 1.5 MPa respectively, and the pressure holding time is 3 After 3 minutes, the steam-exploded straw can be obtained by releasing the pressure; add water at 60°C to the steam-exploded straw with a solid-to-liquid ratio of 1:10 to remove the soluble matter on the surface of the steam-exploded...

Embodiment 2

[0043] Such as Figure 1 to Figure 5 As shown, a device for pretreating crop stalks includes a crop stalk cutting device, a water tank 7, a steam explosion tank 8, an air drying chamber 9, a pulverizer 11 and a storage tank 12;

[0044] The crop straw cutting device is used for cutting the crop straws to be treated; the crop straw cutting device includes a frame 1, a transmission system for the operation of the crop straw cutting device, a feeding room and a cutting device ; The feeding chamber is located on the left side of the frame 1, and the feeding chamber includes a feeding hopper 3, a compacting plate 6 and a group of feeding rollers, and the feeding hopper 3 is in a "U" shape, and the feeding hopper The upper plane of 3 is provided with two or more compacting plates 6 in a transverse direction, the inner angle between the rear end surface of the compacting plates 6 and the upper plane of the feed hopper 3 is less than 90°, and the feeding roller shaft is located at the...

Embodiment 3

[0047] Such as Figure 1 to Figure 5 As shown, a method and device for pretreatment of crop stalks, a method for pretreatment of crop stalks:

[0048] A. Use the crop straw cutting device to cut the crop straw to be treated, and cut it into small sections with a length of 10-19 cm for later use;

[0049] B. Carry out infiltration treatment on the crop stalks cut in step A, that is, put the small crop stalks with a length of 10-19 cm into the water tank 7, add water in the water tank 7 at a ratio of 1:1, and soak for 24 hours ;

[0050] C, put the crop stalks after soaking treatment in step B into the steam explosion tank 8, feed saturated hot steam into the steam explosion tank 8, boost the pressure to 0.6 MPa, 1.0 MPa and 1.5 MPa respectively, and the pressure holding time is 3 After 3 minutes, the steam-exploded straw can be obtained by releasing the pressure; add water at 60°C to the steam-exploded straw with a solid-to-liquid ratio of 1:10 to remove the soluble matter on...

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Abstract

The invention relates to a pretreatment method of crop straw, which includes the following steps: A. cutting the crop straw to be treated by using a cutting device for crop straw; B. processing the cut crop straw in the step A with infiltration; C. processing the infiltration processed crop straw in the step B with steam explosion in a steam explosion tank and washing the infiltration processed crop straw in the step B; D. naturally drying the washed steam explosion straw in the step C in a hurricane dryer at a room temperature, grinding the naturally dried steam explosion straw in a mill, and storing the straw in a storage tank after being filtered in a 30-40 mesh sieve. The invention further relates to a device of crop straw pretreatment, and the device has the advantages that the crop straw can be easily ground, the phenomenon of mess of incinerated straw and air pollution caused by incinerating straw is effectively avoided, and renewable resources in the world is effectively developed.

Description

technical field [0001] The invention relates to the field of environmental protection treatment, in particular to a method and device for pretreating crop stalks. Background technique [0002] PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 microns in the atmosphere. The small particle size enables it to be suspended in the air for a long time, and because it contains a large amount of toxic and harmful substances and stays in the atmosphere The time is long and the transportation distance is long. Even though PM2.5 is only a small component in the earth's atmosphere, it has an important impact on air quality and visibility, and has a greater impact on human health and atmospheric environmental quality; PM2. The sources of 5 include: fossil fuel (coal, oil, gas, etc.) fly ash, motor vehicle exhaust dust, industrial dust and biomass combustion fly ash, road dust, etc. The incineration of crop straws directly emits primary particulate matter, and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/36D21C1/02B27L11/08A01G18/20
CPCB27L11/08D21B1/36D21C1/02Y02P60/20
Inventor 马淑玲宋娜李竹生程春杰
Owner 南京普渃斯派生态环境研究院有限公司
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