overflow well
2.Introduced are the principle,advantage and disadvantage of three methods for flocculent addition,being that controlled by turbidity,inflow quantity and interface position;an automatic control system designed for reagent addition into the rake thickener,in which quantity of flocculent being added according to solid content and volume of inflow and turbidity of overflow;this system is high in control precision and well amendable to variation of inflow quality and quantity.
4.For floors where abrasion and impact resistance as well as dust-proof are required such as for shed,Loading area at port ,Machinery industry, Aitcraft parking apron ,Garage,Parking area, Oil storage piant,Pathway floor, Mine chute, Bridge surface, Reservior overflow relief channel , Energu consumption.Loading slope ,Military industry, Weaving mills, Cold Storage plant ,Automobile industry ,Electronic industry Express highway, Etc.
5.According to relevant design specifications, rules and standards, seve ral typical problems such as freezing protection of pipe equipment between water tanks, waterpipe leak prevention in high? low voltage transferring room, preven t ing rainwater flowing into underground garage, fire dewatering, water pollution in special fire water tank as well as the joints of the overflow pipe and waste ? discharging pipe of the water tank to the sewage aeration pipe are presented.
