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Selection and configuration of main equipment for gravel processing system of Buwei Hydropower Station

Selection and configuration of main equipment for gravel processing system of Buwei Hydropower Station

Add time: September 11, 2017 browse: second
Buwei hydropower station is located on the heivolta River in the west of Ghana, which is the border river between Cote d'Ivoire and the border river between buquila and Ghana and originates from the country. The main dam of Buwei hydropower station is a roller compacted concrete dam with a height of 110m and a total concrete volume of about 1.1 million cubic meters, including about 900000 cubic meters of roller compacted concrete. The dam mass concrete of Buwei hydropower station is mainly composed of three graded C15 roller compacted concrete, and the normal concrete is basically the structural part concrete.
According to the design production capacity of 900 000 t / m, the system is determined according to the design production capacity of 900 000 t / month. During the peak period of concrete pouring, the sand gravel system can organize production according to the three shift system in a short time.
Coarse. According to the requirement that the handling capacity of the coarse crushing workshop is 900t / h, as about 23% of the materials with the particle size less than 150 mm can pass through the feeder directly. Therefore, the actual processing capacity of the crusher is 693t / h. Two Metso C125 e-crushers (with a single processing capacity of 410t / h) are selected for coarse crushing.
Medium and fine. In this system, the processing capacity of the crushing workshop is 492t / h. two sets of Metso gp300s cone crusher are selected. The single processing capacity of gp300s crusher is about 400t / h (E = 40mm). The loading rate of the equipment is 61.49%, and the processing capacity of the fine crushing workshop is 129t / h %。 It fully meets the requirements of design specifications.
Sand making equipment. The processing capacity of ultra-fine crushing workshop is 74h / h, three b9100 impact crushers are selected, and the single passing capacity of the equipment is about 385t / h. The equipment has excellent performance and good grain shape, and has been successfully applied to the sand and gravel system of xiaanxi of the Three Gorges Project. The processing capacity of rod mill is 72t / h and two mbz2136 rod mills are selected. The equipment has been widely used and the quality of sand products is good.
Screening and dewatering equipment. Two sets of 2ykr3060 vibrating screens are selected for screening, two sets of 2ykr2460 circular vibrating screens are selected for the second screening, and three sets of 2168v high-frequency vibrating screens are selected for the third screening; zsj1233 linear screens with single processing capacity of 40-60t / h are selected for the dewatering of finished sand; one zkr1445 linear screen is installed at the tail of 14 ?, 24 ? and 25 ? belt conveyor respectively to clean the large, medium and small stones before entering the warehouse; the washing water and bars of each aggregate The stone powder lost after dewatering by spiral classifier in grinding workshop flows into sedimentation tank through drainage ditch, and then recycled by a zx-200b black cyclone, and then transported to finished product silo by 42 belt conveyor. This method has been successfully applied in many construction sites.


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