System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine

A technology for sintering annular coolers and circulating flue gas, which is applied to machines/engines, steam generation methods using heat carriers, waste heat treatment, etc. Effect

Active Publication Date: 2010-02-24
ZHEJIANG XIZI UNITED ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low temperature of the exhaust gas of the sintering ring cooler, only 150°C to 450°C, coupled with the limitations of the previous waste heat recovery technology, waste heat recovery projects often give people the impression of "high cost, less power generation, and long recovery period". ignored by people

Method used

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  • System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine

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Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 As shown, a sintered annular cooler waste heat power generation cycle flue gas optimization and adjustment system provided in this embodiment mainly includes: annular cooler 1, annular cooler bellows 2, annular cooler air chamber 3, and switching baffle door 4 , chimney 5, double-pressure non-supplementary combustion waste heat boiler 6, double-pressure supplementary steam condensing steam turbine 7, generator 8, supplementary damper 9, circulation fan 10, bypass chimney 11, bypass chimney damper 12, circulation fan outlet valve 13 , the circulating flue gas regulating damper 14, the control system 15, the air chamber 3 of the annular cooler is divided into a high temperature air chamber 3-1 and a low temperature air chamber 3-2, and the high temperature air chamber 3-1 and the low temperature air chamber 3-2 pass through the air intake The flue 17 is respectively connected to the dual-pressure non-supplementary combustion waste heat boiler 6, the steam...

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Abstract

The invention discloses a system for regulating and optimizing smoke by power generation and recycle of residual heat of a sintering ring cold machine, which mainly comprises a ring cooling machine, a ring cooling machine wind box, a ring cooling machine wind chamber, a switching baffle door, a dual-pressure boiler without resisual heat and a steam filling and condensing type dual-pressure steam turbine, wherein the ring cooling machine wind chamber is divided into a high-temperature wind chamber and a low-temperature wind chamber which are respectively connected with the dual-pressure boilerwithout resisual heat through inlet flues, the steam outlet of the dual-pressure boiler without resisual heat is connected with the steam filling and condensing type dual-pressure steam turbine, and the outlet of a sediment chamber of the dual-pressure boiler without resisual heat is connected with a circulation fan through the flues and a wind complementing door. The invention has the highest efficiency in recovering residual heat, can use the resisual heat of sintering mineral materials at most, keeps stability, high efficiency and contineous operation for power generation by using the residual heat, and has important meaning for steal and iron plants.

Description

technical field [0001] The invention relates to a high-efficiency sintered double-pressure waste heat boiler configured with a supplementary steam turbine waste heat power generation cycle flue gas optimization adjustment system, in particular to a sintering ring cooler waste heat power generation cycle flue gas optimization adjustment system. Background technique [0002] In the process of iron and steel production, the energy consumption of the sintering process accounts for about 10% of the total energy consumption, ranking second only to the iron-making process. In the total energy consumption of the sintering process, nearly 50% of the heat energy is discharged into the atmosphere in the form of sensible heat of the sintering machine flue gas and cooler exhaust gas. Due to the low temperature of the exhaust gas of the sintering ring cooler, only 150°C to 450°C, coupled with the limitations of the previous waste heat recovery technology, waste heat recovery projects ofte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F27D19/00F22B1/18F01K27/00
CPCY02P10/25Y02P80/15
Inventor 金雷何世民沈东宋宜清姚琼周海平
Owner ZHEJIANG XIZI UNITED ENG
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