Waste heat continuous utilization work station system and process for blast-furnace slag
A blast furnace slag and station technology, applied in recycling technology, improvement of process efficiency, furnace, etc., can solve the problems of discontinuous slag discharge and the inability to use the heat energy of blast furnace slag for power recycling, etc., to achieve continuous utilization, system The effect of simple structure and cost reduction
Active Publication Date: 2013-11-06
四川川润股份有限公司
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Problems solved by technology
[0006] One of the objectives of the present invention is to solve the above-mentioned shortcomings, and provide a continuous utilization station system and process for blast furnace slag waste heat, in order to solve the problem that the thermal energy of blast furnace slag cannot be used for power in the prior art due to discontinuous blast furnace smelting slag. Recycling and other technical issues
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[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings.
[0025] figure 1 A schematic diagram of the process system of the present invention is shown, with reference to figure 1As shown, the first embodiment of the present invention is a station system for continuous utilization of blast furnace slag waste heat. The station system includes tundish station 1, granulation cooling station 3, heat exchange station 4, waste heat utilization station Station 5, steam power unit 6 and two slag dumping stations 2, and the number of slag dumping stations 2 is equal to or less than the number of granulation cooling stations 3, and the number of tundish station 1 is greater than or equal to the number of slag dumping stations 2 quantity. And according to the quantitative relationship of the aforementioned tundish station 1, slag dumping station 2 and granulation cooling station 3, four tundish stations 1, three slag dumping stations 2...
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The invention discloses a waste heat continuous utilization work station system and a process for blast-furnace slag, and belongs to a method and a system for utilizing the blast-furnace slag. The waste heat continuous utilization work station system comprises tundish work stations, granulating and cooling work stations, a heat exchange work station, waste heat utilization work stations, a steam power device and at least two slag pouring work stations, wherein the quantity of the slag pouring work stations is equal to or smaller than that of the granulating and cooling work stations; the quality of the tundish work stations is greater than or equal to that of the slag pouring work stations; the slag pouring work stations are positioned nearby the tundish work stations; the granulating and cooling work stations are positioned below the tundish work stations and are respectively communicated with the heat exchange work station; the heat exchange work station is also communicated with the waste heat utilization work stations; and the waste heat utilization work stations are communicated with the steam power device. The waste heat continuous utilization work station system for the blast-furnace slag, which is provided by the invention, is simple in structure, easier in realization of the process and wide in application range and can be used as various blast-furnace slag treating and heat energy recovering devices.
Description
technical field [0001] The present invention relates to a blast furnace slag utilization method and system, more specifically, the present invention mainly relates to a blast furnace slag waste heat continuous utilization station system and its process. Background technique [0002] Blast furnace slag is a by-product of blast furnace ironmaking. It is a silicate material with good performance. After processing, it is mainly used to make building materials and raw materials for chemical fertilizers. At the same time, in the blast furnace production process, after smelting various raw materials and fuels into the furnace, in addition to obtaining molten iron (steelmaking pig iron or foundry pig iron) and by-product blast furnace gas, gangue in iron ore, ash in fuel and flux Fusion forms liquid slag, whose general temperature is 1450-1650°C, and is discharged from the slag port and iron port at regular intervals (about 2 hours apart). For every ton of pig iron produced, 300-40...
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IPC IPC(8): C21B3/06C21B3/08F27D17/00
CPCC21B2400/026C21B2400/08Y02P10/25Y02W30/50
Inventor 汪建业刘福兰李辉王麟吴定房李天丽蒋鼎琮肖闯
Owner 四川川润股份有限公司