Self-generated type steam protection and fire extinguishing process

Abstract

The invention discloses a self-generated type steam protection and fire extinguishing process. The process comprises the following steps that after the condition that a reaction cavity is on fire is discovered through a remote monitoring system, the operation of an anti-explosion electromagnetic valve is controlled through an upper computer system and a PLC control system in a remote operation mode; the water source is sprayed to an inner partition plate of the reaction cavity in a water mist mode through an atomizing nozzle in the reaction cavity; since a high-temperature oil gas is in the reaction cavity, the water mist can be instantly evaporated into steam, and the temperature of a combustible gas in the whole reaction cavity can be reduced by the steam and the concentration of the combustible gas and oxygen can be diluted; the spraying water amount can be controlled through the detection of oxygen content and temperature in the reaction cavity, meanwhile, the upper computer systemand the PLC system can carry out linkage control on the spraying water amount according to the oxygen content and send out alarm information; and the whole control system supplies power in an uninterruptible power supply and the continuous use can be met under the emergency situation of the field. The process has the advantages that the structure is simple, temeprature can be rapidly reduced forextinguishing fire, and fire caused by the ignition of an high-temperature flue gas in an indirect heating process of industrial and dangerous waste can be effectively extinguished.

Description

technical field [0001] The invention relates to the application of fire extinguishing in a heating chamber of a solid waste heat treatment device, in particular to a steam protection and fire extinguishing technology. Background technique [0002] In the field of oily waste treatment, more and more hazardous waste disposal enterprises have begun to adopt heat treatment technology due to its advantages of thorough treatment, no chemical addition, and no secondary pollution. [0003] In the process of using heat treatment technology (thermal desorption, drying, pyrolysis, carbonization, incinerator) to treat oily waste, a large amount of combustible gas will be generated during the heating process, and the temperature of the furnace body will reach above 200°C. Elements Among them, combustibles and ignition sources are two elements. Once the air (combustion aid) enters the furnace, fire or deflagration will occur in the furnace, which poses a threat to safe production. [000...

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Problems solved by technology

[0004] In response to this situation, the existing safety protection measures mainly include fire-fighting water to extinguish the fire. When the fire-fighting water enters the furnace, it is easy to cause the furnace body in a high-temperature state to rapidly cool down and quench, and the material of the furnace body becomes brittle, which affects the service life of the furnace body. The cost of nitrogen fire extinguishing is relatively high and the equipment is complicated

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