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Method for testing oxygen bomb calorific value of corn straw

A technology of corn stalks and straw oxygen bombs, which is applied in the field of agriculture, can solve problems such as rough calorific value and solid powder ignition failure, and achieve the effects of simple method, improved ignition success rate, and easy operation

Active Publication Date: 2015-07-08
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The calorific value directly calculated is rough, and the direct measurement with the oxygen bomb meter usually causes the ignition failure in the experiment due to the splash of solid powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment relates to a method for testing the calorific value of an oxygen bomb of corn stalks, the method comprising the following steps:

[0026] The first step is to select about 10 corn stalks from a certain corn field in Qili Village, Gangyan Town, Chongming County, Shanghai, using the scientific distribution method, peel off the stems and leaves, air-dry them, and then crush them through a 40-mesh sieve. The sieved corn stalks were dried at 45°C and 105°C, and the measured moisture contents of the corn stalks at 45°C and 105°C were 1.82% and 9.14% respectively. 0.4357%;

[0027] In the second step, use a small medicine spoon to add 1.235g of sample to the feeding hole of the tablet press to the uppermost edge of the feeding hole, then press the tablet, and use a clean white paper to pad the bottom of the feeding hole of the tablet press until the sample falls A cylindrical pressed sample is obtained;

[0028] The third step is to take out the sample that h...

Embodiment 2

[0031] This embodiment relates to a method for testing the calorific value of an oxygen bomb of corn stalks, the method comprising the following steps:

[0032] In the first step, about 10 corn stalks were selected from a certain corn field in Yichun City, Jiangxi Province by the scientific distribution method, the stems and leaves were peeled off, air-dried, and then crushed through a 60-mesh sieve; the crushed and sieved corn stalks were placed in Drying at 45°C and 105°C, the measured moisture content of corn stalks at 45°C and 105°C were 0.35% and 5.80% respectively; the H element content was 5.999%, and the S element content was 0.351%;

[0033] In the second step, use a small medicine spoon to add 0.883g of sample to the feeding hole of the tablet press to the uppermost edge of the feeding hole, then press the tablet, and use a clean white paper to pad the bottom of the feeding hole of the tablet press until the sample falls A cylindrical pressed sample is obtained;

[...

Embodiment 3

[0037] This embodiment relates to a method for testing the calorific value of an oxygen bomb of corn stalks, the method comprising the following steps:

[0038] The first step is to select about 10 corn stalks in a certain corn field in Mengcheng County, Anhui Province by the scientific distribution method, peel off the stems and leaves, air-dry them, and then crush them through a 60-mesh sieve; the crushed and sieved corn stalks Dried at 45°C and 105°C, the measured moisture content of corn stalks at 45°C and 105°C were 0.02% and 3.63% respectively; the H element content was 6.334%, and the S element content was 0.417%;

[0039] In the second step, use a small medicine spoon to add 0.586g of the sample to the feeding hole of the tablet press to the uppermost edge of the feeding hole, then press the tablet, and use a clean white paper to pad the bottom of the feeding hole of the tablet press until the sample falls A cylindrical pressed sample is obtained;

[0040] The third s...

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Abstract

The invention provides a method for testing the oxygen bomb calorific value of corn straw, and the method comprises the following steps: the step 1, fetching the corn straw after treatment, crushing, drying, testing moisture, and obtaining the corn straw powder; the step 2, pressing the corn straw powder into block structures; the step 3: placing the corn straw of block structures into an oxygen bomb calorimeter for test, and acquiring a oxygen bomb calorific valve of the corn straw. The invention uses the combination of a tablet compressing technology and the oxygen bomb calorimeter test for testing the oxygen bomb calorific valve of the corn straw, thereby substantially improving the igniting success rate of the experiment; the invention has the advantages of simple method, easy operation and high accuracy, and active guidance meanings of quantitative energy utilization of biomass and related equipments.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for testing the calorific value of an oxygen bomb of corn stalks. Background technique [0002] Corn is a crop that is mainly used as feed for grain, economics and fodder, and corn stalks are also an important production resource for industrial and agricultural production. As a resource, corn stover is rich in nutrients and available chemical components, which can be used as raw material for livestock feed, and its high fiber content can be used as raw material for bioenergy (such as fuel ethanol, bio-oil). [0003] The high and low calorific values ​​of biomass directly affect the energy utilization of biomass. Therefore, as a common biomass, corn stalks can accurately test the calorific value of corn stalks. It is very important for the development of biomass energy utilization. [0004] Through literature search of the prior art, it is found that most of them a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/22
Inventor 刘荣厚王璐张乐孙辰蔡文飞梅远飞尹仁湛
Owner SHANGHAI JIAOTONG UNIV