Steam jet blast furnace slag flushing water waste heat recovery device
A waste heat recovery device, blast furnace slag flushing water technology, applied in furnaces, waste heat treatment, heating methods, etc., can solve the problems of affecting the environment, corroding equipment and pipes, not fully utilizing waste heat, etc., to reduce the amount of water replenishment, save energy and The effect of water consumption and power consumption reduction
Pending Publication Date: 2022-03-01
BENXI GUANGYUAN ENVIRONMENTAL ENG
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Problems solved by technology
[0003] The purpose of the present invention is to provide a waste heat recovery device for blast furnace slag flushing water by steam jetting to solve the problem that the waste heat is not fully utilized, and then a large amount of waste heat is released into the air to affect the environment, corrode equipment and pipelines
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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] Such as Figure 1 to Figure 5 As shown, the present invention provides a steam injection blast furnace slag water waste heat recovery device, including an evaporator 1, a main condenser 2, two main injectors 3, an auxiliary condenser 4, an auxiliary injector 5, and a blast furnace slag washing water Water tank 6, heating water tank 7,...
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The invention relates to a steam jet blast furnace slag flushing water waste heat recovery device which comprises an evaporator, a main condenser, two main ejectors, an auxiliary condenser, an auxiliary ejector, a blast furnace slag flushing water tank, a heating water tank, a blast furnace slag flushing water inlet pipe, a heating water inlet pipe, a steam inlet pipe and a non-condensable gas exhaust pipe. The top end of the evaporator is fixedly communicated with a blast furnace slag flushing water inlet pipe, and the bottom end of the evaporator is fixedly communicated with the top of a blast furnace slag flushing water tank. Negative pressure is generated through high-speed jet of steam, the blast furnace slag flushing water evaporates steam, the cooled blast furnace slag flushing water is sent back to a blast furnace to be used for circulating slag flushing, and heat of the steam is transmitted to heating water to be used for heating urban resident buildings. The waste heat of the blast furnace slag flushing water is recycled, the water supplementing amount of an original slag flushing water circulation system is reduced, the blast furnace slag flushing water cooling tower and the cooling fan are stopped, power consumption is reduced, and energy and water are saved for a process system.
Description
technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a steam jet blast furnace slag flushing water waste heat recovery device. Background technique [0002] With the rapid development of the national economy and the continuous improvement of the requirements for energy conservation and emission reduction, the country continues to promote the dual-carbon plan. Large and medium-sized steel mills, especially those in the northern region, recover waste heat from blast furnace slag washing water for urban heating in winter. Save a lot of energy and reduce carbon emissions. my country's ironmaking production is basically blast furnace production, and the iron output is very high. Part of the waste heat of blast furnace slag washing water has not been recovered, and a large amount of waste heat is dissipated into the air to affect the environment and corrode equipment and pipelines. Some blast furnace slag flushing water wast...
Claims
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IPC IPC(8): F27D17/00F24D3/00C21B3/08
CPCF27D17/004F24D3/00C21B3/08F27D2017/006C21B2400/024C21B2400/08Y02P10/20Y02P10/25
Inventor 刘国跃刘荷
Owner BENXI GUANGYUAN ENVIRONMENTAL ENG