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 single, low waste heat recovery rate, etc., and achieve the effect of reducing height, compact boiler structure and saving investment
Active Publication Date: 2012-01-25
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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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
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[0016] The present invention will be described in detail below in conjunction with the drawings and embodiments.
[0017] This embodiment uses 320m 2 The sensible heat of the sintering machine and the recovery of the sensible heat of the sintering machine’s mid- and low-temperature flue gas are described as examples. The cooler matched with the sintering machine 39 is a vertical cooler 38, and the power generation type waste heat boiler 23 is a vertical arrangement with negative pressure run.
[0018] See Figure 4 , The present invention is composed of 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. The power generation waste heat boiler 23 is arranged in sequence from top to bottom in the furnace body There are a medium-pressure superheater 15, a sleeve-type medium-pressure evaporator 13, a medium-pressure economizer 12, a sleeve-type low-pressure evaporator 10, and a co...
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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 that simultaneously recovers the waste heat of two different working fluids. Background technique [0002] The waste heat boiler is an energy-saving equipment that recovers waste heat from 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 the system process and reducing pollutant emissions. The heat recovery objects of the waste heat boiler mainly include flue gas, the sensible heat of the exhaust after solid waste heat exchange, etc., collectively referred to as waste heat of exhaust gas. With the continuous improvement of energy saving and consumption reduction standards, the waste heat recovery work of iron and steel enterprises continues to deepen, and...
Claims
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IPC IPC(8): F27D17/00F01K11/02F01D15/10
CPCY02P10/25Y02P80/15
Inventor 赵斌张玉柱田欣武志飞张尉然贾楠边技超宋美微杜磊刘洪涛苏福源
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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