Coal mine rescue equipment | Mining rescue equipment | Mining machinery equipment
Three-phase foam generator for coal mines KSP900
The three-phase foam generator for coal mines consists of a foaming system and a foaming agent dosing pump. It uses the existing grouting system in the mine, either on the surface or underground, to add the foaming agent, thereby reducing the surface tension of water and changing the physicochemical properties of fly ash and yellow mud surfaces, achieving rapid fire prevention and extinguishing effects. It can completely cover floating coal at low and high positions, effectively avoiding the shortcomings of uneven grouting coverage that easily cause "grout leakage" and "groove pulling," isolating oxygen from the coal body, stopping coal oxidation and the exothermic reaction.
- Product Description
-
"Coal Mine Fire Prevention and Extinguishing Rules"
Article 82 When using three-phase foam fire prevention, the following provisions shall be observed:
(1) The water-to-soil (ash) ratio of the slurry for preparing three-phase foam should be 4:1 to 6:1.
(2) The gas source can be nitrogen or air. The pressure of the gas source entering the foam generator inlet shall be greater than the foam flow resistance between this point and the injection point, and not less than 0.2MPa.
(3) The foaming agent shall not be flammable, oxidizing, toxic, radioactive, or irritating.
(4) For longwall mining faces, injection can be carried out in roadways with higher elevation; for inclined strip mining faces, injection can be done simultaneously in intake and return air roadways; drilling injection can be used in high gas emission areas of roadways.
Product Introduction
The three-phase foam generator for coal mines consists of a foaming system and a foaming agent dosing pump. It uses the existing grouting system in the mine to add foaming agent on the surface or underground, thereby reducing the surface tension of water and changing the physicochemical properties of fly ash and yellow mud surfaces, achieving rapid fire prevention and extinguishing effects. It can completely cover floating coal at low and high positions, effectively avoiding the shortcomings of uneven slurry coverage causing "slurry leakage" and "groove formation," isolating oxygen from the coal body, stopping coal oxidation and heat release reactions.
Product Features
1. The foam formed after foaming greatly increases in volume, spreading widely in the goaf and can accumulate upwards.
2. It can quickly and effectively control hidden coal spontaneous combustion fire sources in goafs and high gas emission areas of roadways.
3. Simple structure, high foaming multiple, no additional power device needed, only using the energy of the slurry, achieving energy saving and environmental protection while ensuring full gas-liquid-solid mixing, guaranteeing uniform, delicate, and stable foam.
4. Encapsulates coal, isolates oxygen, and blocks air leakage channels and coal fissures.
New Construction Technology
Strip-type injection of three-phase foam to prevent spontaneous combustion in goafs. Foam and nitrogen pipelines are laid in the upper and lower roadways to the mining line position. After the working face advances xx meters, foam injection begins, calculating foam accumulation volume to form a foam wall sealing the mining line, then stop foam injection. Then inject -30°C nitrogen into the goaf. Pipelines are withdrawn as mining progresses. When the working face advances xxx meters, foam injection starts again at the designed position to form another foam wall. Between the two foam walls, a low-temperature area is formed, and nitrogen is used to inert the space. Cold nitrogen is injected while withdrawing pipelines, freezing the foam walls into ice walls. This process is repeated multiple times to form multiple frozen inert low-temperature small areas inside the goaf, delaying coal oxidation and temperature rise, preventing spontaneous combustion in the goaf.
Main Technical Parameters
Item Unit KSP900 Foaming Multiple Times >30 Foam Stability Time h >8 Water-to-Ash Ratio (Mass Ratio) 3:1 to 6:1 Foaming Agent Usage Ratio % 0.2 to 0.5 Slurry Consumption m³/h 10 to 30 Nitrogen Pipeline Airflow m³/h 300 to 1200 Foam Generator Inlet Gas Pressure MPa >0.1 to 0.7 Three-Phase Foam Output m³/h 300 to 1200 Voltage V 660/1140 Power kW 3 Device Outlet DN 100 Slurry Inlet KJ 51 Agent Inlet KJ 19 Nitrogen Inlet KJ 51 Dimensions mm 1600×900x1100 
Keyword:
Online message
*Note: Please fill in the information accurately and keep the communication open. We will contact you as soon as possible.
Address: Hulan District, Harbin City, Heilongjiang Province, Victory Street
Contact Information:+86 400-015-0451
After-sales:+86 0451-57368359
Email:herbintianyi@163.com
1688
Official Mini Program
Official Douyin
WeChat Official Account
Online consultation
If you have any questions about the product, please feel free to contact us!