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Metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method

A waste heat power generation and metallurgical furnace technology, which is applied in the field of metallurgical furnace dust removal, can solve the problems of large horse-drawn carts and low steam output, and achieve the effects of reduced fluctuation range, low emission concentration, and reduced fluctuation range of flue gas temperature

Inactive Publication Date: 2014-06-04
无锡市东优环保科技有限公司
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  • Abstract
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Problems solved by technology

However, the actual steam output is far lower than the maximum evaporation capacity of the waste heat system, resulting in the situation of large horses and small carts

Method used

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  • Metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method
  • Metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method
  • Metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention will be further described:

[0021] Such as figure 1 Shown: the steps of the energy-saving and dust-removing method for energy-saving and dust-removing method of metallurgical furnace high dust-containing flue gas of the present invention are as follows:

[0022] 100t / h metallurgical furnace 1 exhaust gas flow rate 29×10 4 N m 3 / h, temperature 850℃, dust concentration 25g / Nm 3 It is discharged from the fourth hole, mixed with cold air through the water-cooled sliding sleeve 2, and enters the combustion settling chamber 3 after burning carbon monoxide gas. Mixed with cold wind, the carbon monoxide gas is finally burned, and the flue gas passing through the combustion settling chamber 3 enters the heat storage homogenizer 5, and the heat storage homogenizer 5 includes a flue gas inlet 6, a silicon carbide composite material heat storage body 7, a shock wave Ash removal device 9, flue gas outlet 10 ...

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Abstract

A metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method is characterized in that exhaust flue gas in a metallurgical furnace is exhausted through a fourth hole, is mixed with cold air through a water-cooling sliding sleeve and enters a settling chamber, a thermal storage temperature evening device and a flow evening thermal storage chamber, cooled smoke flows out of a booster fan and is mixed with smoke exhausted out of an exhausting pipeline connected to the upper portion of the metallurgical furnace to enter a dust remover, and after dust removing, the smoke is pressed into an exhaust funnel through a main fan to be exhausted into the atmosphere; circulation water absorbs the heat of the smoke from a heat exchanger, a steam-water mixture is formed and enters an evaporator, heat is discharged, a low-boiling point organic working medium passes through a working medium pump and absorbs the heat of the steam-water mixture in the evaporator, saturated steam is formed, the working medium steam swells and performs acting in a steam turbine and drives a three-phase generator to generate electricity. The metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method is characterized in that iso-butane serves as the circulating organic working medium. By means of the metallurgical furnace high-ash-laden gas organic Rankine cogeneration energy-saving dust removing method, thermal energy in the smoke can be recycled to the largest extent and can be converted into high-grade electric energy, the dust removing capability can be improved, and the good environment protection effect is achieved.

Description

technical field [0001] The invention relates to an energy-saving and dust-removing method for organic Rankine waste heat generation of high dust-containing flue gas of a metallurgical furnace. Specifically, it can maximize the recovery of heat energy in the flue gas and convert it into high-grade electric energy, and can improve the dust removal ability, belonging to metallurgical furnaces Dust removal technology field. Background technique [0002] In the prior art, the purification device for the flue gas of the metallurgical furnace is the flue gas generating equipment of the metallurgical furnace, the waste heat utilization facility, and the dust collector are connected in sequence through pipelines. [0003] At present, waste heat utilization facilities are commonly used: water tube waste heat boilers, regenerative waste heat boilers to recover the waste heat of metallurgical furnace flue gas, and generate saturated steam, etc. Because the flue gas temperature of metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F22B1/18F01K27/02F01D15/10
CPCY02P10/25
Inventor 王正新
Owner 无锡市东优环保科技有限公司
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