Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preventing spontaneous combustion of stored coal

A coal spontaneous combustion, coal technology, applied in medical science, dentistry, dental drilling, etc., can solve the problems of easy heating of coal, spontaneous combustion of coal, surface oxidation, etc., to achieve strong operability, prevent excessive heat generation, and low cost. Effect

Inactive Publication Date: 2018-10-16
徐州东兴能源有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to save space, coal is generally placed in piles during storage, which makes the coal that has been placed for a long time easy to generate heat. It will cause spontaneous combustion of coal, especially for newly mined coal, the active groups on its surface are easily oxidized by oxygen, and it is more likely to cause surface oxidation during storage and cause spontaneous combustion of coal

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: A method for preventing spontaneous combustion of stored coal. The coal is placed in a closed space to isolate it from oxygen, and the coal can also be oxidized in advance so that the coal loses the conditions for spontaneous combustion.

[0012] Put the coal in a certain closed space and use the fan to extract the air in the closed space where the coal is located, so that the coal is completely isolated from the air and loses the conditions for spontaneous combustion. The coal is oxidized by an oxidant to realize the oxidation treatment of the stored coal in advance. The confined space is designed to avoid light.

[0013] The oxidizing agent is potassium perchlorate, and the closed space is in a vacuum state, which is a preferred version of the present invention.

[0014] Potassium perchlorate or sodium peroxide generates oxygen when it decomposes, and the oxygen oxidizes the stored coal to make it lose its ability to spontaneously ignite, thereby preven...

Embodiment 2

[0015] Embodiment 2: A method for preventing spontaneous combustion of stored coal. The coal is placed in a closed space to isolate it from oxygen, and the coal can also be oxidized in advance so that the coal loses the conditions for spontaneous combustion.

[0016] Put the coal in a certain closed space and use the fan to extract the air in the closed space where the coal is located, so that the coal is completely isolated from the air and loses the conditions for spontaneous combustion. The coal is oxidized by an oxidant to realize the oxidation treatment of the stored coal in advance. The confined space is designed to avoid light.

[0017] The oxidizing agent is sodium peroxide, and the closed space is in a vacuum state, which is a preferred version of the present invention.

[0018] Sodium peroxide is corrosive to a certain extent, and it is easy to deliquescence and can react with water, which reduces the moisture problem of coal to a certain extent, and sodium peroxide...

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 relates to a method for preventing spontaneous combustion of stored coal. According to the technical scheme, the coal is placed in a closed space to be isolated from oxygen, and the coalalso can undergo oxidation treatment in advance, so that the coal loses the spontaneous combustion conditions. According to the method, the coal storage space is set to be in a vacuum state, and a design of keeping the coal in a dark place is adopted, so that the situation that due to the fact that the coal undergoes illumination, the coal is heated, and then the spontaneous combustion of the coal is caused is prevented; and the other method is characterized in that the property that an oxidizing agent is decomposed to generate the oxygen under a certain condition is used, so that the coal issurrounded by the oxygen, then the spontaneous combustion time of the coal is prolonged, and the method can be widely popularized in the field of energy development.

Description

technical field [0001] The invention relates to the technical field of chemical reagents, in particular to a method for preventing spontaneous combustion of stored coal. Background technique [0002] At present, in order to save space, coal is generally placed in piles during storage, which makes the coal that has been placed for a long time easy to generate heat. It will cause spontaneous combustion of coal, especially for newly mined coal, the active groups on its surface are easily oxidized by oxygen, and it is more likely to cause surface oxidation during storage and cause spontaneous combustion of coal. There are two conditions that cause spontaneous combustion of coal, one is the contact of coal with oxygen, and the other is the calorific value of coal. Therefore, if coal spontaneous combustion is to be effectively prevented, it is necessary to isolate coal from oxygen or reduce the calorific value of coal. Contents of the invention [0003] In order to solve the a...

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
IPC IPC(8): A62C3/06A62C2/04
CPCA62C3/06A62C2/04
Inventor 陈金东
Owner 徐州东兴能源有限公司