A method and system for extinguishing fires in a coal conveyor trestle

By dividing the coal conveyor bridge into fire-prevention zones and installing water spray and water curtain systems, the problems of high difficulty in fire fighting and unsatisfactory fire prevention effects of steel structure coal conveyor bridges have been solved, achieving efficient fire control and economical fire extinguishing measures.

CN117752966BActive Publication Date: 2026-06-12CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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Patent Information

Application Number
CN202410005301.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-03
Publication Date
2026-06-12
Estimated Expiration
2044-01-03

AI Technical Summary

Technical Problem

Fires on steel-structured coal conveyor bridges are difficult to extinguish, traditional fire prevention measures are not ideal, and the fire risk is high. The spread of fire within the enclosed bridge is difficult to control, leading to increased economic losses and safety risks.

Method used

Open-type fire extinguishing measures are adopted, which involve dividing the coal conveyor bridge into fire-prevention zones and installing water spray systems in each zone and fire-prevention water curtain systems in and at both ends of the zones. The water spray and water curtain systems work together to contain the fire and isolate the fire area.

Benefits of technology

It improves the reliability of initial fire suppression and the accuracy of fire prevention and control, reduces the economic cost of fire protection systems, and ensures the safe operation of thermal power plants.

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Abstract

The application provides a fire extinguishing method and system for a coal conveying trestle, and the method comprises the following steps: obtaining the length and width of the coal conveying trestle; obtaining the fire-fighting water volume of a single set of fire separation water curtain system and the first protectable trestle length; obtaining the second protectable trestle length of a single set of water spray system; dividing the coal conveying trestle according to the length of the coal conveying trestle, the first protectable trestle length and the second protectable trestle length to obtain a plurality of fire compartments; when a fire is detected in the coal conveying trestle, determining the first fire compartment where the fire is located, and controlling the water spray system in the first fire compartment and the fire separation water curtain system at both ends of the first fire compartment to start; determining the second fire compartment and controlling the water spray system in the second fire compartment and the fire separation water curtain system at both ends of the second fire compartment to start; the reliability of initial fire extinguishing and the accuracy of fire prevention and control are improved, and the economic cost of the fire prevention system of the coal conveying trestle is reduced.
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