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Straw bundle dehumidification drying method

A drying method and straw baling technology, applied in the field of drying treatment, can solve the problems of high cost, many precipitation and drying links, and mildew in storage, so as to reduce material transportation loss, reduce precipitation and drying links, and reduce social burden. Effect

Inactive Publication Date: 2016-02-24
谭明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the outstanding problems are the high moisture content of straw and the problem of mildew in storage, because the high moisture content of straw reduces the thermal efficiency of boilers in biomass power generation projects to 34%, resulting in losses for the entire biomass power generation industry
Because of the high moisture content of straw itself, the traditional precipitation and drying process has many links, and the high cost cannot be reduced, so the development of comprehensive utilization of straw has stagnated for many years.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] Example 1, the method of the present invention is to insert the delivery pipe into a straw bundle of 1 cubic meter; The conveying pipes are evenly placed in the same direction; the moisture content of the straw in the straw bales is measured to be 45%, and hot air with pressure is input through the mouth of the conveying pipes. When the moisture content of the straw bales after dehumidification and drying reaches 35%, the straw bales are stacked Stored naturally for 30 days in a place with a canopy, the measured moisture content is 18%. The stacking height is 5 meters, the width is 3 meters, and the length is 20 meters. There is a 2-meter ventilation channel between the stacks. .

example 2

[0014] Example 2, the method of the present invention is that the delivery conduit is inserted into a straw bundle with a width and a height of 1 meter and a length of 2 meters. The delivery conduit has a vent pipe body on the tube wall, and the internal diameter of the delivery conduit is ?200mm, and the length is 1010mm , each straw bale is inserted into 6 conveying pipes, and placed evenly in the same direction; measure the moisture content of the straw in the straw bale to 40%, put an electric heating rod in the conveying pipe, and when the moisture content of the straw bale reaches 35% after dehumidification and drying , put the straw bales in a place with a canopy, and store them naturally for 90 days. The measured moisture content is 17%. The stacking height is 3 meters, the width is 2 meters, and the length is 20 meters. There is a 1.5 meter ventilation channel.

example 3

[0015] Example 3, the method of the present invention is to insert the conveying conduit into a straw bundle of 1 cubic meter, the conveying conduit is a pipe body with air holes on the pipe wall, the internal diameter of the conveying conduit is ?50mm, and the length is 1030mm, and each straw bundle is inserted into 4 The conveying pipes are evenly placed in the same direction; the moisture content of the straw in the straw bales is measured to be 33%, and the straw bales are placed in a field with a canopy for 60 days of natural storage, and the measured moisture content is 16%. The length is 5 meters, the width is 3 meters, and the length is 20 meters. There is a 2.5-meter ventilation channel between the stacks.

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PUM

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Abstract

The invention provides a straw bundle dehumidifying and drying method and belongs to the technical field of drying processing. A conducting pipe is inserted in a straw bundle to measure the water content of straws in the straw bundle, and when the water content is larger than 35%, an external heat source is inserted from the opening of the conducting pipe to carry out primary drying; when the water content is lower than 35%, the straw bundle is stacked in a place with a canopy to be naturally stored for 30-90 days; when the water content is equal to or lower than 18% and can be maintained, the conducting pipe is taken out, the straw bundle can be used as raw materials at any time, the stacking height is equal to or lower than 5 meters, the stacking width is equal to or lower than 3 meters, the stacking length is equal to or lower than 20 meters, and a 2+ / -0.5 m ventilation channel is formed between stacks. The straw bundle dehumidifying and drying method dehumidifies and dries wet materials without changing the shape and the storing state of the wet materials, saves time and labor, can dehumidify and dry wet materials without energy consumption, and reduces humidifying and drying links.

Description

technical field [0001] The invention belongs to the technical field of drying treatment and relates to a straw drying method. Background technique [0002] Straw as an industrial raw material has been a subject of research in recent years. It has the advantages of large quantity and renewable. It has received good results as a biochemical raw material and made into clean fuel, and it can solve the environmental pollution caused by open straw burning. The transportation and storage of straw as an industrial raw material mainly uses straw to be bundled, and the straw is collected and bundled into round or square bundles in the field. This integrated bundling equipment has been successfully developed. At present, the outstanding problems are the high moisture content of straw and the problem of mildew in storage, because the high moisture content of straw reduces the thermal efficiency of boilers in biomass power generation projects to 34%, resulting in losses for the entire in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B9/10F26B23/10
Inventor 谭明
Owner 谭明