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Double-working substance heat source sintering cogeneration-type boiler system

A waste heat boiler and duplex technology, applied in furnaces, waste heat treatment, energy industry, etc., can solve the problems of low and single waste heat recovery, and achieve the effects of compact boiler structure, reduced height and good condition

Active Publication Date: 2010-09-15
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of single recovery of sinter sensible heat and low recovery rate of waste heat in the prior art, and provide a dual-mass heat source sintering power generation waste heat boiler system

Method used

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  • Double-working substance heat source sintering cogeneration-type boiler system
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  • Double-working substance heat source sintering cogeneration-type boiler system

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] In this embodiment, 320m 2 The sensible heat of the sintering machine sinter and the sensible heat recovery of the middle and low temperature flue gas of the sintering machine are taken as an example to illustrate. The cooling machine matched with the sintering machine 39 is a vertical cooling machine 38, and the power generation waste heat boiler 23 is vertically arranged. run.

[0018] see Figure 4 , the present invention is composed of several parts such as a vertical cooler 38, a sintering machine 39, a power generation waste heat boiler 23, a condensing steam supplementary steam turbine 28, and a generator 29. There are a medium pressure superheater 15 , a casing type medium pressure evaporator 13 , a medium pressure economizer 12 , a casing type low pressure evaporator 10 and a condensate heater 9 .

[0019] In this embodiment, the in...

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Abstract

The invention relates to an afterheat boiler system, in particular to a double-working substance heat source sintering cogeneration-type boiler system. The system comprises a vertical cooling machine, a sintering machine, a cogeneration-type boiler, a steam condensing and compensating turbine and a generator, wherein hot air produced by the vertical cooling machine is introduced into the upper part of the cogeneration-type boiler through a pipeline; warm flue gas in the sintering machine is introduced into a sleeve-type medium-pressure evaporator on the upper-middle part of the cogeneration-type boiler through the pipeline; low-temperature flue gas of the sintering machine is introduced into a sleeve-type low-pressure evaporator on the lower-middle part of the cogeneration-type boiler through the pipeline; medium-pressure over-heat steam produced by the cogeneration-type boiler is introduced into a main steam port of the steam condensing and compensating turbine through the pipeline; and low-temperature saturated steam produced by the cogeneration-type boiler is introduced into the steam compensating port of the steam condensing and compensating turbine through the pipeline so that the steam condensing and compensating turbine drives the generator to generate electricity. By taking energy cascade utilization as a theoretical basis and taking heat exchange equipment of the vertical cooling machine as source equipment, the system integrates and recoveries the afterheat of sintering flue gas efficiently and realizes the maximum generated electricity converted from heat power.

Description

technical field [0001] The invention relates to a waste heat recovery power generation waste heat boiler, in particular to a dual working medium heat source sintering power generation waste heat boiler system which recovers waste heat of two different working fluids at the same time. Background technique [0002] Waste heat boiler is an energy-saving equipment that recovers waste heat in various processes to improve the thermal efficiency of the entire device and reduce primary energy consumption. It plays a very important role in improving the quality of system processes and reducing pollutant emissions. The heat recovery objects of waste heat boiler mainly include flue gas, exhaust sensible heat after solid waste heat exchange, etc., which are collectively referred to as waste gas waste heat. With the continuous improvement of energy saving and consumption reduction standards, the waste heat recovery work of iron and steel enterprises has been deepened, and the research on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F01K11/02F01D15/10
CPCY02P10/25Y02P80/15
Inventor 赵斌张玉柱武志飞张尉然贾楠边技超宋美微杜磊刘洪涛
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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