Multi-rotary slag centrifugal granulation system
A centrifugal granulation, multi-turntable technology, applied in recycling technology and other directions, can solve the problems of wasting space, wasting power and energy, and achieve the effect of increasing processing capacity, better effect, and saving time and space
Active Publication Date: 2019-06-25
NANJING TECH UNIV
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Problems solved by technology
[0003] At present, the amount of slag processed by the ordinary centrifugal granulation system is small, but when the slag output is large, multiple granulation systems are required to process it at the same time, which wastes both space and power energy
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[0019] specific implementation plan
[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] Such as figure 1 As shown, the multi-rotary blast furnace slag centrifugal granulation system of the present invention includes a slag collection unit 101 , a multi-rotary unit 102 and a power and power transmission unit 103 .
[0022] The slag particle collection unit 101 includes a slag particle collection cylinder 7 , a refractory brick 8 , an air inlet 9 and a slag outlet 20 .
[0023] The multi-turntable unit 102 includes a conical bin 1 , a central turntable 2 , auxiliary turntables 3 , 4 , 5 , 6 , a central slag pipeline 15 , and a peripheral slag pipeline 16 .
[0024] The power and power transmission unit 103 includes a motor 14 , a driving shaft 11 , a driven shaft 10 , a driven gear 12 and a driving gear 13 .
[0025] The specific operation process is as follows:
[0026] The...
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The invention discloses a multi-rotary disc type molten slag centrifugal granulating system. The multi-rotary disc type molten slag centrifugal granulating system comprises a slag particle trapping unit (101), a multi-shaft rotary disc unit (102) and a power and power transmission unit (103), wherein the multi-shaft rotary disc unit (102) consists of a center rotary disc, a plurality of non-coaxial auxiliary rotary discs and the like. The multi-rotary disc type molten slag centrifugal granulating system is characterized in that the molten slag is granulated by the multi-shaft rotary discs, sothat compared with the single-shaft system, the treatment amount is larger, the space is saved, and more advantages are realized. The invention also provides a novel rotary disc structure for the granulating of the molten slag; flow guide convex blocks are arranged at the surface of each rotary disc in a center rotary symmetric way, so that compared with the common rotary disc, the size of the granulated molten slag is more uniform, and the distribution of the particle size is more centralized. The multi-rotary disc type molten slag centrifugal granulating system has the advantages that the implementing is smooth, the treatment amount of the molten slag is obviously increased, and the large-scale application of the dry type centrifugal granulating system in metallurgical industry is realized.
Description
technical field [0001] The invention belongs to the technical field of waste heat recovery and rotary disc centrifugal granulation, relates to a blast furnace slag dry granulation technology, and particularly relates to a rotary disc structure more favorable for granulation. Background technique [0002] As one of the most important by-products of pig iron smelting, blast furnace slag has high slag discharge temperature and large output, and is rich in high-quality waste heat. At present, the treatment of blast furnace slag mainly adopts the wet process, that is, the method of water quenching is used to rapidly cool and granulate it to a glass state to be used as a cement raw material for secondary use. The wet process not only wastes the high-quality waste heat contained in the slag, consumes water resources, but also causes environmental pollution. The dry process can effectively recover the waste heat carried by the slag, save water resources, reduce pollutant emissions,...
Claims
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IPC IPC(8): C21B3/06
CPCC21B3/06Y02W30/50
Inventor 彭浩单学坤凌祥
Owner NANJING TECH UNIV