Ore dressing plant commonly used sand pump contains ordinary sand pump and mission pump . There are many types of ordinary sand pump include PS sand pump, PH sand pump, PN sand pump, PNJA, PNJFA sand pump, PNL sand pump, PW sand pump, PWF sand pump, Long axis vertical centrifugal pump (commonly known as long axis pump), the bubble pump.
PS sand pump, horizontal side pulp centrifugal sand pump, for use in conveying concentrator pulp, such as the working medium of heavy media separation, transporting slurry when maximum concentration of 60% ~ 70%. Shaft seal adopts low-pressure packing form, the work should pass into the water lubrication cooling. It adopted the type of configuration, pump shaft centerline below the surface of pulp 1 m.
PH sand pump is one of sand pump types, be known as horizontal single-stage single-suction cantilever centrifugal ash pump, it can deliver a sandstone (maximum particle size is less than 25 mm) of mixed liquid, it also can allow a continuous sand particle size of about 50 mm.?Shaft seal uses as the general packing seal, the work pressure?is higher than the shaft seal water?reach to 98 kpa.
PNJA, PNJFA sand pump, single-stage single-suction smell heart type line with rubber pump.?PNJFA type is always used for transport containing corrosive slurry.?They can be used in pulp conveying sort, but unfavorable to angle solid particle transport.?Conveying pulp shall not exceed the maximum concentration of 65% (weight), the temperature shall not exceed 60 ℃, using pressure into the configuration and water seal.
PNL sand pump is another sand pump types, vertical single-stage centrifugal slurry pump, it can be used to transport pulp mill, its?maximum?concentration (quality) during?fifty percent?to sixty percent.
PW sand pump, horizontal single-stage cantilever type centrifugal water pump, is suitable for conveying under 80 ℃ with fiber or other suspension liquid and sewage, but should not be used for transportation acid, alkali and chemical mixture liquid can cause metal corrosion.?In order to prevent the water leakage along the axis, need clean water seal, the pressure should be higher than the pump outlet pressure.
PWF type pump, horizontal single-stage single-suction cantilever centrifugal corrosion sewage pump, suitable for discharge acid, alkali or other corrosive sewage, liquid temperature within 80 ℃. They need to seal, the water pressure is higher than working pressure 49 ~ 98 kpa (0.5 ~ 1.0 kg/cm2), and there are two types of sealing: prevent toxic substance, highly corrosive liquid leakage of mechanical seal (single end surface) and general packing.
Long axis vertical centrifugal pump (commonly known as long axis pump) conveying the pulp mill, coal slurry, and various kinds of flotation foam and middlings product. It is a special pump, can also transport other liquids and sewage, it?is one of the indispensable equipment in the production at the?large flotation factory and make the flotation plant realize flexible control loop.
Foam pump, a kind of vertical centrifugal sand pump, the defoaming effect, defoaming rate generally over 75%, can be used for enrichment defoaming delivery before dehydration, reduction in the metal enrichment overflow losses, and can be used for foam product delivery, The bubble pump is a common sand pump types, too.
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