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Sand Catchers
USE:The vertical sand catcher is used for gravitative catching of the sand contained in the influent water and to consequent removal of the sand. FUNCTION:Wastewater containing the sand and devoid of rough impurities runs into vertical stilling cylinder where the speed of water flow is lowered in such way that sand grains bigger than 0,2 mm start to settle in the settling space of the catcher. Water, devoid of sand particles in above mentioned way, raises up in the annular area and drains thru the trough to the catcher"s outlet. Sand is removed from the catcher by the help of air-lift pump attached to the air source and then the sand is carried to another treatment.The source of the air actuating the air-lift pump is solved together with the customer individually, always with respect to the general technology of WTP. In the case of deep laid sand catchers the drowned pumps tailored to pumping of the mixture of water and sand are used.
MATERIAL:
All the machinery of the sand catcher is produced and supplied from the stainless steel of the grade 17 by default, by which means long-term operating life of the SC is ensured, without the need of tough and expensive operative maintaining. The air-lift pump is eventually delivered either made from the plastic – PVC, PP.
SC OPERATING:
The servicing of the sand catcher is done by the occasional cleaning of the drain gutter from the SC off eventually settled impurities. The time slice for the sand exhaust, it`s automatization, including the run of the supporting machinery, (e.g. air-lift blower), is solved individually always.
FORM OF THE DELIVERY:
The machinery of SC is delivered as the piece delivery, eventually as the full delivery including all the additional machinery, also with the mounting by request. The disposition of the machinery, as well as the scope of the delivery, can be individually modified after mutual consultation with the customer and the operator (e.g. enlarged for the delivery of walkways, porous grids for the walk, handrails, etc.).