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A solid oxidation testing device and its application

A testing device and oxidizing technology, which is applied in the direction of chemical analysis by combustion and thermal development of materials, etc., can solve the problems of large error in experimental results and poor experimental accuracy, and achieve the effect of simple device and reliable experimental results

Active Publication Date: 2021-10-08
SHANGHAI TIANKE CHEM INSPECTION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this device cannot be carried out when the amount of sample is small. When there is a large difference in bulk density between the sample and the standard, the error of the experimental result is relatively large, and only the time point at which the main combustion reaction ends is recorded, so the experimental accuracy is poor.

Method used

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  • A solid oxidation testing device and its application
  • A solid oxidation testing device and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A solid oxidation test device, such as figure 1 As shown, it includes bottom ceramic plate 6, heating wire 4, terminal 5, metal plug 1, ceramic ring 3, metal cylinder 2 and infrared thermometer; terminal 5 is placed on the bottom ceramic plate 6, and connected with DC power supply Connection, the two ends of the heating wire 4 are connected to the terminal 5, and buried under the solid test sample mixture 7; the metal plug 1 is installed in the metal cylinder 2, the metal cylinder is installed in the ceramic ring 3, and the metal plug The outer wall is in contact with the inner wall of the metal cylinder, and the outer wall of the metal cylinder is in contact with the inner wall of the porcelain ring. The structure of the metal cylinder 2 is as figure 2 As shown, the diameter of the bottom end is provided with a symmetrical metal cylinder gap 21. The bottom structure of the ceramic ring 3 is the same as that of the metal cylinder, and a symmetrical ceramic ring gap is...

Embodiment 2

[0040] A solid oxidation test device, such as figure 1 As shown, it includes bottom ceramic plate 6, heating wire 4, terminal 5, metal plug 1, ceramic ring 3, metal cylinder 2 and infrared thermometer; terminal 5 is placed on the bottom ceramic plate 6, and connected with DC power supply Connection, the two ends of the heating wire 4 are connected to the terminal 5, and buried under the solid test sample mixture 7; the metal plug 1 is installed in the metal cylinder 2, the metal cylinder is installed in the ceramic ring 3, and the metal plug The outer wall is in contact with the inner wall of the metal cylinder, and the outer wall of the metal cylinder is in contact with the inner wall of the porcelain ring. The structure of the metal cylinder 2 is as figure 2 As shown, the diameter of the bottom end is provided with a symmetrical metal cylinder gap 21. The bottom structure of the ceramic ring 3 is the same as that of the metal cylinder, and a symmetrical ceramic ring gap is...

Embodiment 3

[0044] A solid oxidation test device, such as figure 1As shown, it includes a bottom ceramic plate 6, a heating wire 4, a terminal 5, a metal plug 1, a ceramic ring 3, a metal cylinder 2 and an infrared thermometer; the terminal 5 is placed on the bottom ceramic plate 6, and connected to a DC Connected, the two ends of the heating wire 4 are connected to the terminal 5, and buried under the solid test sample mixture 7; the metal plug 1 is installed in the metal cylinder 2, the metal cylinder is installed in the ceramic ring 3, and the metal plug The outer wall is in contact with the inner wall of the metal cylinder, and the outer wall of the metal cylinder is in contact with the inner wall of the porcelain ring. The structure of the metal cylinder 2 is as figure 2 As shown, the diameter of the bottom end is provided with a symmetrical metal cylinder gap 21, and the bottom structure of the ceramic ring 3 is the same as that of the metal cylinder, and a symmetrical ceramic rin...

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Abstract

The invention relates to a solid oxidation testing device, which comprises a bottom ceramic plate, a heating wire, and a terminal. The terminal is placed on the bottom ceramic plate and connected to a DC power supply. The two ends of the heating wire are connected to the on the terminal post and buried under the solid test sample mixture; it also includes a metal plug and a ceramic ring with a symmetrical gap at the bottom; the metal plug is matched and installed in the ceramic ring, and the solid test sample mixture is placed The ceramic ring is compacted by the metal plug; the heating wire passes through the gap. Compared with the prior art, the invention has the advantages of small required sample amount, more reliable experimental results, simple device, firmness and durability, and the like.

Description

technical field [0001] The invention belongs to the field of solid oxidation testing devices, in particular to a solid oxidation testing device and its application. Background technique [0002] The existing solid oxidative test method refers to GB21617-2008 "Dangerous Goods Solid Oxidative Test Method": 30.0g±0.1g of the substance to be tested and cellulose are respectively made into the substance to be tested: the mass ratio of cellulose is 1:1 The detection mixture I and the substance to be tested: the detection mixture II with a mass ratio of cellulose of 4:1, using a 60° glass funnel with a narrow end closed and a bottom diameter of 70 mm to make the mixture into a truncated cone with a bottom diameter of 70 mm, covering The test is carried out on a circular ignition wire which has been pre-laid on a cool, impermeable and low thermal conductivity flat plate and then started to heat. [0003] However, this device cannot be used when the amount of sample is small. When t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/12G01N25/22
CPCG01N25/22G01N31/12
Inventor 商照聪冷远鹏白云张小沁蒋伟
Owner SHANGHAI TIANKE CHEM INSPECTION
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