Coal ash ultrafine powder grinding system realizing multi-stage circular processing and pre-scattering
A recycling processing and ultra-fine powder technology, which is applied in grain processing and other fields, can solve problems such as poor output, poor dispersion of raw material fly ash, waste of resources, etc., to achieve multi-level recycling, maximize utilization, Effect of preventing flying dust
A recycling processing and ultra-fine powder technology, which is applied in grain processing and other fields, can solve problems such as poor output, poor dispersion of raw material fly ash, waste of resources, etc., to achieve multi-level recycling, maximize utilization, Effect of preventing flying dust
CN109174409AInactive Publication Date: 2019-01-11JIANGSU PENGFEI GROUP
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[0028] Such as Figure 1-6 As shown, in an embodiment of the present invention, a multi-stage circulation processing and pre-dispersed fly ash ultra-fine grinding system 33 is disclosed, and the multi-stage circulation processing and pre-dispersion fly ash ultra-fine grinding The system 33 includes a feeding device 32, a first regulating valve 13, a second regulating valve 22, a third regulating valve 19, a fourth regulating valve 21, a pre-dispersing device 9, a V-type coal pulverizer 10, and a vertical roller mill 11. The first air lock valve 17, the second air lock valve 26, the third air lock valve 27, the cyclone powder separator 16, the cyclone separator 18, the dust collector 23, the first fan 20 and the air chute 28 ,in:
[0029] The pre-dispersing device 9 is connected with the feeding device 32, and the feeding device 32 is used to transport the material (fly ash) into the pre-dispersing device 9, please refer to figure 1 , 5 As shown, the feeding device 32 disclo...
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The invention relates to a coal ash ultrafine powder grinding system realizing multi-stage circular processing and pre-scattering, comprising a feeding device; a first adjusting valve; a second adjusting valve; a third adjusting valve; a fourth adjusting valve; a pre-scattering device which is connected with the feeding device; a V-shaped coal pulverizer which is provided with a feeding hole, a coarse material discharge hole, a fine material outlet and an air inlet, wherein the feeding hole is connected with the pre-scattering device, and the air inlet is connected with air cold air blast by the first adjusting valve; a vertical roller mill, which is provided with a roller mill feeding hole, a dust removal hole and a roller mill discharge hole, wherein the roller mill feeding hole is connected with the coarse material discharge hole in the V-shaped coal pulverizer, the roller mill discharge hole is connected with the feeding device or the pre-scattering device, and the dust removal hole is connected with the air inlet in the V-shaped coal pulverizer; a first air locking valve; a second air locking valve; and a third air locking valve. According to the invention, powder material issubjected to circular processing by a four-stage circular processing process, so that the powder material is ground to be finer, and material waste is reduced.
Description
technical field [0001] The invention relates to a fly ash production system, in particular to a multi-stage circulation processing and pre-dispersed fly ash superfine grinding system. Background technique [0002] At present, my country's annual discharge of fly ash is nearly 600 million tons. Although the overall comprehensive utilization rate has reached 70%, in the western and northern coal power concentrated areas, the discharge of fly ash is large and the utilization rate is very low. Most of them are stored in open air or landfilled, which not only pollutes the environment but also wastes resources. [0003] my country's first environmental protection tax law has been officially implemented on January 1, 2018. Enterprises, institutions and other production operators who store or dispose of solid waste such as fly ash that do not meet national and local environmental protection standards need to pay environmental protection tax25 yuan / tonne. Fly ash desulfurization g...
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Patent Timeline
11 Jan 2019
Publication
CN109174409A
- IPC
- B02C21/00; B02C23/32; B02C23/14
- CPC
- B02C21/00; B02C23/14; B02C23/32
- Inventors
- ιηζ³; ζζεΉ³