Suspension inhibitor for preventing and controlling coal mine spontaneous combustion and application thereof

A chemical inhibitor, spontaneous combustion technology, applied in the direction of dust prevention, mining equipment, fire prevention, etc., can solve the problems of easy blockage of pipelines, spray coating falling off, pipeline blockages, etc., to strengthen the fire prevention effect, reduce costs, water quality safe effect

Active Publication Date: 2018-02-09
INNER MONGOLIA BORAN TECH CO LTD
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the cement mortar is easy to crack after drying, and the sealing effect is reduced, so the cement mortar needs to be sprayed again
Repeatedly spraying too thick cement mortar will easily cause the whole sprayed layer to fall off.
The second is that the cement mortar has a large proportion and is easy t...

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

[0042] Accurately weigh 75Kg of the inorganic suspending inhibitor attapulgite, 10Kg of the activator sodium bicarbonate, and 1.1Kg of the penetrating agent sodium dodecylsulfonate, and fully mix and activate for 30 minutes.

[0043] Take 5Kg of water-soluble high molecular polymer sodium polyacrylate, and 10Kg of instant sodium silicate, a moisture-absorbing and moisturizing agent, and mix them evenly.

[0044] Stir and mix the above two mixtures uniformly to obtain a solid suspended chemical inhibitor product for preventing spontaneous combustion in coal mines.

[0045] Take a small amount of suspended inhibitor product, add water at a ratio of 1:100 and stir for 60 minutes to make a 1% water suspension. The various technical indicators of the water suspension were tested, which were: viscosity (25°C) 4.9mPa•s, pH value 7.5, acid and alkali resistance met the requirements.

[0046] Prepare the suspension inhibitor in the same way as a water suspension with a concentration of ...

Embodiment 2

[0051] Accurately weigh 41Kg of attapulgite, 20Kg of montmorillonite, 10Kg of sodium carbonate, and 1.2Kg of sodium dodecylbenzenesulfonate, and fully mix and activate for 30 minutes.

[0052] Get 7Kg of sodium polyacrylate and 20Kg of instant sodium silicate and mix well.

[0053] Stir and mix the above two mixtures uniformly to obtain a solid suspended chemical inhibitor product for preventing spontaneous combustion in coal mines.

[0054] Take a small amount of suspended inhibitor product, add water at a ratio of 1:100 and stir for 60 minutes to make a 1% water suspension. The technical indicators of the water suspension were tested, which were: viscosity (25°C) 5.6mPa•s, pH value 7.5, acid and alkali resistance met the requirements.

[0055] Prepare the suspension inhibitor in the same way as a water suspension with a concentration of 0.2%. Take 100 parts by weight of the water suspension, add 100 parts by weight of mountain sand of 40 to 60 mesh, and stir evenly to prep...

Embodiment 3

[0059] Accurately weigh 50Kg of bentonite, 23Kg of loess, 10Kg of sodium bicarbonate, and 1.1Kg of sodium dodecylbenzenesulfonate, and fully mix and activate for 30 minutes.

[0060] Get 6Kg of sodium polyacrylate and 20Kg of calcium chloride dihydrate and mix well.

[0061] Stir and mix the above two mixtures uniformly to obtain a solid suspended chemical inhibitor product for preventing spontaneous combustion in coal mines.

[0062] Take a small amount of suspended inhibitor product, add water at a ratio of 1:100 and stir for 60 minutes to make a 1% water suspension. The technical indicators of the water suspension were tested, which were: viscosity (25°C) 5.2mPa•s, pH value 6.5, acid and alkali resistance met the requirements.

[0063] Prepare the suspension inhibitor in the same way as a water suspension with a concentration of 0.2%. Take 100 parts by weight of the water suspension, add 100 parts by weight of mountain sand of 40 to 60 mesh, and stir evenly to prepare the...

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

PropertyMeasurementUnit
Gel strengthaaaaaaaaaa
Gel strengthaaaaaaaaaa
Gel strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a suspension inhibitor for preventing and controlling coal mine spontaneous combustion. The suspension inhibitor is prepared from 5 to 25 percent of ultra-high molecular weight sodium polyacrylate, 55 to 85 percent of inorganic suspension inhibitors, 5 to 20 percent of activating agents and 1 to 2.5 percent of penetrating agents through blending. The suspension inhibitor is added into water to be prepared into a water suspension; then, hilly sand or pulverized fuel ash is added to be prepared into a fire preventing and extinguishing inhibitor; the suspension inhibitor,the hilly sand (the pulverized fuel ash) and the water can be chelated to form a three-dimensional reticular structure; hilly sand (pulverized fuel ash) particles with great density are wrapped in the reticular structure, so that the suspension time is long; and the problems of hilly sand (pulverized fuel ash) settling, pipeline blockage and short water holding time of the fire preventing and extinguishing inhibitor are solved.

Description

technical field [0001] The invention belongs to the technical field of flame retardancy in coal mines, and relates to a chemical inhibitor for preventing spontaneous combustion in coal mines. The inhibitor of the invention can well suspend mountain sand or fly ash to prevent and prevent coal mine spontaneous combustion. Background technique [0002] Coal mine fires are mostly caused by spontaneous combustion of coal. In the process of coal mining and transportation, due to mechanical vibration, wind and other factors, there will be gaps in the coal seam to infiltrate air, and a lot of fine coal dust will fall on the wall of the coal roadway. Coal absorbs oxygen in the air and oxidizes, which will generate a certain amount of heat. If the heat cannot be dissipated in time, as the oxidation progresses, the heat will accumulate more and further intensify the oxidation, and the coal temperature will become higher and higher. When the coal When the temperature reaches the ignit...

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): E21F5/06
Inventor 陈守东侯凤陈璐
Owner INNER MONGOLIA BORAN TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap