Afterheat utilization flue after-burning device and after-burning method thereof
A flue and supplementary combustion technology, applied in the combustion method, the steam generation method using heat carrier, the gas fuel burner, etc., can solve the problems of many downtime failure points, restricting economic benefits, and large fluctuations in power generation load, and achieves increased power generation. The effect of power generation capacity
Inactive Publication Date: 2012-07-04
ZHEJIANG XIZI UNITED ENG
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Problems solved by technology
[0003] Due to the characteristics of some main processes in metallurgy, chemical industry, building materials and other industries, there are load fluctuations, large changes in operating conditions, and many shutdown failure points. Phenomena occur from time to time, which have a very adverse impact on major equipment such as steam turbines, generators, and boilers. At the same time, it also reduces the utilization efficiency of equipment and restricts the further improvement of economic benefits.
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Embodiment 1
[0017] like figure 1 As shown, the residual heat utilization flue supplementary combustion device described in this embodiment mainly includes a burner device 3, a flue 4 in the mixing section of the burner, a gas regulating door 8, a gas pipeline 11, a combustion air pipeline 9 and an ignition Stable combustion pipeline 10; the inlet flue of the burner device 3 is connected to the flue gas outlet of section I or II of the sintering ring cooler 1, and the outlet is connected to the waste heat boiler through the flue; the flue 4 of the mixing section of the burner is arranged in the burner device 3 on the flue on the rear side; the gas pipeline 11 is connected to the gas inlet of the burner device 3, and the combustion air pipeline 9 and the ignition and stable combustion pipeline 10 are communicated with the gas pipeline 11; the gas regulating door 8 is arranged on At the entrance of the gas pipeline 11. The flue 4 of the mixing section of the burner can ensure that the hot f...
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The invention discloses an afterheat utilization flue after-burning device, which mainly comprises a burner device, a burner mixing section flue, a fuel gas regulating door, a fuel gas pipeline, a combustion support air pipeline and an ignition combustion stabilizing pipeline, wherein an inlet flue of the burner device is connected with smoke gas outlets of a first section or a second section of a sintering ring cold machine, an outlet is connected with an afterheat boiler through the flue, the burner mixing section flue is arranged on the flue arranged at the back side of the burner device, the fuel gas pipeline is connected with a fuel gas inlet of the burner device, the combustion support air pipeline and the ignition combustion stabilizing pipeline are communicated with the fuel gas pipeline, and the fuel gas regulating door is arranged at the inlet part of the fuel gas pipeline. The afterheat utilization flue after-burning device and an after-burning method designed by the invention have the advantages that the blast furnace coal gas, the coke furnace coal gas and the liquefied petroleum gas can be reasonably and effectively utilized on the premise of not influencing the original afterheat power generation process flow process, so the afterheat boiler inlet smoke gas temperature is raised, and the power generation capability is enhanced.
Description
technical field [0001] The invention relates to a waste heat utilization device, in particular to a waste heat utilization flue supplementary combustion device and a supplementary combustion method thereof. Background technique [0002] In the production process of metallurgy, chemical industry, building materials and other industries, a large part of heat energy is discharged into the atmosphere in the form of sensible heat of waste gas. With the development of waste heat utilization including waste heat power generation technology, the waste heat of low-temperature exhaust gas at 300-450 °C has been recycled, and very significant environmental protection and energy-saving economic benefits have been achieved. [0003] Due to the characteristics of load fluctuations, large changes in operating conditions and many shutdown failure points in some main processes in metallurgy, chemical industry, building materials and other industries, the actual production and operation of lo...
Claims
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IPC IPC(8): F27D17/00F23D14/02F22B1/18
CPCY02P10/25
Inventor 潘增生任磊周勇平钟辉明沈东
Owner ZHEJIANG XIZI UNITED ENG