Combustible gas safety monitoring and controlling device and method for steel slag waste heat pressure hot disintegration

A hot stuffiness and waste heat technology, applied in the field of steel slag waste heat pressurized hot stuffy combustible gas safety prevention and control device, can solve safety hazards and other problems, achieve the effect of safety prevention and control, eliminate safety hazards, and simple installation and operation

Inactive Publication Date: 2015-11-11
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] During the hot stuffy process, high temperature steel slag reacts with water to produce a certain amount of combustible gas, which poses a safety hazard

Method used

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  • Combustible gas safety monitoring and controlling device and method for steel slag waste heat pressure hot disintegration

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Embodiment Construction

[0026] A safety prevention and control device for hot stuffy combustible gas with steel slag waste heat is attached figure 1 As shown, a safety prevention and control device for autoclavable stuffy combustible gas with residual heat of steel slag, including: autoclavable stuffy tank 1, air induction valve 2, air induction pipe 3, gas analyzer 4, nitrogen gas storage tank 5, nitrogen valve 6. Nitrogen flow meter 7, nitrogen pipe 8, exhaust valve 9, data transmission line 10, PLC control system 11, and calculation and display system 12. In the device, the air induction pipe 3 includes the first air induction pipe, the second air induction pipe and the third air induction pipe; The outlet end of the gas analyzer is connected to the gas analyzer 4 through the second air induction pipe 3, and the extracted gas is discharged from the gas analyzer 4 through the third air induction pipe 3. Nitrogen pipe 8 comprises first nitrogen pipe, the second nitrogen pipe, the 3rd nitrogen pipe ...

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Abstract

The invention relates to a combustible gas safety monitoring and controlling device and method for steel slag waste heat pressure hot disintegration. According to the method, gas components in a pressure hot disintegration tank 1 are detected in real time through a gas analyzer 4; nitrogen is fed into the pressure hot disintegration tank 1 at a certain flow speed within a certain time in the later period of hot disintegration; exhaust valves 9 are opened after nitrogen is fed for a certain time, nitrogen is continuously fed to exhaust the combustible gas in the pressure hot disintegration tank 1, so that the concentration of combustible gas in the pressure hot disintegration tank 1 is lowered to a certain value, and the concentration is kept unit hot disintegration is completed. The combustible gas safety monitoring and controlling device and method have the beneficial effects that safety monitoring and controlling over the combustible gas during steel slag waste heat pressure hot disintegration are achieved technologically, installation operation is simple, independent operation of a PLC system is not influenced, the compatibility with the PLC system is high, and the combustible gas safety monitoring and controlling device and method play an important role in controlling the components of the combustible gas in the pressure hot disintegration tank 1 in the production process and eliminating potential safety hazards.

Description

technical field [0001] The invention relates to a device and method for safety prevention and control of pressurized and hot stuffy combustible gas with residual heat of steel slag, in particular to a device and method for discharging combustible gas in a closed tank by charging nitrogen to reduce its concentration to within the explosion limit. Background technique [0002] About 0.12 to 0.14 tons of steel slag is produced for every ton of steel produced. In 2014, the steel slag produced in my country was about 115 million tons, with a utilization rate of 30%. A large amount of steel slag is not used as a resource, occupying land and polluting the environment. [0003] The traditional steel slag treatment process often adopts pool type hot stuffing or hot splashing plus crushing magnetic separation process. At present, the hot stuffy process for steel slag treatment has been recognized by the industry and has become the mainstream process for steel slag treatment. Compared...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06
CPCY02W30/50
Inventor 吴龙孙健胡天麒王延兵董春柳杨景玲韩志强郝以党田玮贾树伟王雨清
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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