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A preparation method of a chemical inhibitor for preventing lignite spontaneous combustion

A chemical inhibitor and lignite technology, applied in the field of flame retardants, can solve problems such as insufficient environmental protection, and achieve the effects of convenient use, good inhibitory effect, and excellent inhibitory effect

Active Publication Date: 2020-09-15
吉安诺惠诚莘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently commonly used inhibitors have certain limitations, and there are not many inhibitors with wide adaptability, and they are not environmentally friendly.

Method used

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  • A preparation method of a chemical inhibitor for preventing lignite spontaneous combustion
  • A preparation method of a chemical inhibitor for preventing lignite spontaneous combustion
  • A preparation method of a chemical inhibitor for preventing lignite spontaneous combustion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method for preventing lignite from spontaneous combustion, the steps are as follows:

[0035] (1) The phenol-resistant Brevibacterium parvus and Cellulomonas hygrospores were respectively expanded and cultivated to a cell concentration of 10 9 cfu / g, mixing the phenol-resistant Brevibacterium and Cellulomonas hygrogena according to a mass ratio of 1:2 to obtain a mixed strain;

[0036] (2) aseptically inoculate the mixed strains of step (1) gained into the liquid fermentation medium after the sterilization treatment, the weight ratio of the liquid fermentation medium and the mixed strains is 15: 1, the mixed strains inoculated The liquid fermentation medium was placed in constant temperature and continuous fermentation at 140rpm and 27°C for 55 hours;

[0037] The formula of described liquid fermentation medium is as follows: in the liquid fermentation medium of every 1L, contain 20g peptone, the yeast powder of 6g, 12g potato starch, the glucose of 6g, 1...

Embodiment 2

[0045] A preparation method for preventing lignite from spontaneous combustion, the steps are as follows:

[0046] (1) The phenol-resistant Brevibacterium parvus and Cellulomonas hygrospores were respectively expanded and cultivated to a cell concentration of 10 9 cfu / g, mixing the phenol-resistant Brevibacterium and Cellulomonas hygrogena according to a mass ratio of 1:3 to obtain a mixed strain;

[0047] (2) aseptically inoculate the mixed strains of step (1) gained into the liquid fermentation medium after the sterilization treatment, the weight ratio of the liquid fermentation medium and the mixed strains is 15: 1, the mixed strains inoculated The liquid fermentation medium was placed at 140rpm and 27°C for constant temperature and continuous fermentation for 55 hours, and then placed at 25-35°C fluctuating room temperature for 100 days;

[0048] The formula of described liquid fermentation medium is as follows: in the liquid fermentation medium of every 1L, contain 20g p...

Embodiment 3

[0056] A preparation method for preventing lignite from spontaneous combustion, the steps are as follows:

[0057] (1) The phenol-resistant Brevibacterium parvus and Cellulomonas hygrospores were respectively expanded and cultivated to a cell concentration of 10 9 cfu / g, mixing the phenol-resistant Brevibacterium and Cellulomonas hygrogena according to the mass ratio of 1:2.5 to obtain the mixed strain;

[0058] (2) aseptically inoculate the mixed strains of step (1) gained into the liquid fermentation medium after the sterilization treatment, the weight ratio of the liquid fermentation medium and the mixed strains is 15: 1, the mixed strains inoculated The liquid fermentation medium was placed at 140rpm and 27°C for constant temperature and continuous fermentation for 55 hours, and then placed at 15-25°C fluctuating room temperature for 100 days;

[0059] The formula of described liquid fermentation medium is as follows: in the liquid fermentation medium of every 1L, contain...

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Abstract

The invention relates to a preparation method of an inhibitor for preventing spontaneous combustion of lignite. The preparation method includes conducting expansion culture, fermentation, centrifugation and compounding on strains of anti-phenol brachybacterium and moist cellulomonas. A using method of the inhibitor for preventing the spontaneous combustion of the lignite includes the following steps of mixing the inhibitor and raw coal in a mass ratio of 1:10, stirring uniformly and standing for fermentation for 24 hours at 30 DEG C for sufficient resistance. According to the method, a biological novel environmentally-friendly inhibitor for preventing the spontaneous combustion of the lignite is provided. The inhibitor is environmentally friendly and safe, the lignite is modified by fermentation, and a good resistance effect can be achieved by using only a small amount of chemical product magnesium chloride.

Description

technical field [0001] The invention relates to the field of flame retardants, in particular to a preparation method of a novel bio-chemical retardant for preventing lignite spontaneous combustion. Background technique [0002] my country has abundant reserves of lignite resources. Lignite is the coal with the lowest degree of coalification. It has high moisture content, high oxygen content, high volatile matter, and low calorific value. This makes lignite usually classified as low-quality coal. , is not suitable for long-distance transportation, and its application is greatly restricted. At present, lignite upgrading technology is mainly used to dry lignite to solve the problem of lignite utilization, but lignite is more prone to spontaneous combustion after drying and partial drying. Therefore, solving the problem of lignite spontaneous combustion is very important for improving the utilization rate of lignite. [0003] Inhibitor is an important means to prevent spontaneo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20E21F5/06C12R1/01
CPCC12N1/20E21F5/06
Inventor 郑远攀江楠王华张亚丽王月红李继光姚浩伟李森王泽宇
Owner 吉安诺惠诚莘科技有限公司
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