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HRJ two-stage mechanical pusher centrifuges
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Pusher centrifuges
Detail
HRJ two-stage mechanical pusher centrifuges
Principle of Operation
When the centrifuge is running at full speed, the suspension to be separated is fed through a feed pipe (or feed screw in the case of suspension with higher solid content) into the distributor installed on the outer basket. The suspension is evenly distributed on the screen inside the inner basket under centrifugal force. The liquid phase is discharged through the screen slots and the pores of the basket, while the solid phase is retained on the screen to form a stable filter cake ring. Through the oscillating motion of the inner basket, the filter cake moves forward along the axial direction of the basket and is discharged from the solids discharge channel at end of the outer basket.
Design of products
HRJ two-stage mechanical pusher centrifuges are supported on a base plate through bearing seat assembly and mainly composed of a gearbox, a pusher mechanism, a base plate, bearing seat assembly, baskets, screens, casing and other components. Compared with traditional pusher centrifuges, the model eliminates the hydraulic drive mechanism and adopts a slider-crank mechanism as the drive. The rotating assembly is connected to the rotor motor pulley through V-belts. The electric control box is a separate system, and the electric control cabinet is installed in the electric control room. The on-site operation box is installed in a suitable position near the centrifuge.
Applications
The centrifuge is suitable for separating suspensions containing crystal or short fibrous particles with good filtration properties. The average particle size of the solids is 0.08-3mm, with a concentration (volume ratio) of 30-80%, such as anilino acetonitrile, acrylamide, nickel acetate, acetate fiber, sodium dichromate, soda ash, succinic acid, paraxylene, wastewater salts, ammonium perchlorate, phosphate, sulfate, nitrate, ammonium chloride, potassium chloride, lithium chloride, ferrous chloride, potassium chlorate, chloroacetic acid, cotton seed, gelatin, urea, boric acid, lithium hydroxide, potassium carbonate, ammonium bicarbonate, potassium bicarbonate, urotropine, nitrocellulose, magnesium sulfite, sodium sulfite, sodium nitrite, aluminum oxide, and heavy alkali (secondary dewatering).
HRJ two-stage mechanical pusher centrifuge Standard Sizes and Technical Data
| specification | Basket diameter（mm） | Filter length（mm） | Speed（r/min） | Separation factor（Fr） | Push stroke（mm） | Push frequency（min-1） | Main motor power（kW） | Oil pump motor power（kW） | Capacity (t/h) (under optimal conditions) | Weight of host（kg） | Dimension（mm） |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HRJ280-N | 230/280 | 120/120 | 1800-2800 | 507-1228 | 40 | 30-80 | 5.5-11 | 3 | 0.5-1 (ammonium sulfate） |
2050 | 2210×1460×1095 |
| HRJ400-N | 337/400 | 160/160 | 1400-2300 | 400-1180 | 40 | 30-80 | 7.5-15 | 4 | 2-2.5 (ammonium sulfate） |
2400 | 2530×1290×1155 |
| HRJ500-N | 410/500 | 180/180 | 1200-2000 | 400-1120 | 50 | 50-75 | 37-55 | 15 | 12-18 （salt） |
3800 | 3710×1380×1750 |
Pusher Centrifuge
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