Two-point or multi-point supporting piston pushing centrifuge rotary drum assembly

Abstract

The invention provides a two-point or multi-point supporting piston pushing centrifuge rotary drum assembly. The piston pushing centrifuge rotary drum assembly comprises a spindle, a push rod, a rotary drum, a pusher, a distributor, a rotary drum supporting structure and a shaft sleeve, wherein one end of the rotary drum is open, and the sidewall of the rotary drum is provided with holes; one endof the rotary drum supporting structure is fixed to the shaft sleeve, and the other end of the rotary drum supporting structure is fixed to the rotary drum wall of the rotary drum; the push rod is ofa hollow tubular structure; a material channel communicating with an internal pipeline of the push rod is arranged on the part, between the pusher and the distributor, of the spindle or the push rod;a material is fed into the space between the pusher and the distributor through the material channel and then goes into the rotary drum; the middle portions of the spindle, the push rod and the shaftsleeve are provided with washing water channels communicating with the interior of the push rod; and washing water goes into the rotary drum through the washing water channels. Through the multi-pointsupporting structure and the unique feeding method, the rotary drum is large in diameter, high in rotating speed and long in filter zone, and has more rotary drum levels; and the advantages that thepiston pushing centrifuge rotary drum assembly is not prone to vibration, the separation factor is large, the water content of filter residues is low, the washing water equivalent is small, the production capacity is high, and large-scale production is facilitated are achieved.

Description

technical field [0001] This patent relates to a centrifuge drum assembly, specifically a two-point or multi-point supported piston pusher centrifuge drum assembly. Background technique [0002] The conventional piston pusher centrifuge is a continuous operation, pulsating discharge filter centrifuge. In the case of high-speed operation, the material is continuously fed from the feed pipe located at the discharge end of the drum axially, and flows along the feeding distributor to the screen of the drum. The filtrate passes through the filter screen and is discharged continuously through the filtrate outlet, and the filter residue accumulated on the inner surface of the filter screen is pushed out along the inner wall of the drum by the pusher that reciprocates relative to the drum. [0003] Since the material is fed into the feed pipe at the open end of the drum, the support of the main shaft of the above-mentioned piston pusher centrifuge can only be made as unilateral supp...

AI Technical Summary

Problems solved by technology

The cantilever structure causes the free end of the drum to vibrate under the joint action of forces parallel to the axial direction and perpendicular to the axial direction. In severe cases, the bottom of the drum at the fixed end of the drum cracks, causing serious accidents

[0005] On the other hand, the mechanical characteristics of unilateral support and cantilever structure limit the diameter, speed, length of the filter area, and the number of stages of the drum, which in turn lead to easy vibration of the piston pusher centrifuge, small separation factor, and material The filtration time is too short, the moisture content of the material is too high, the drying energy consumption per unit of product is large, the washing water equivalent is too large, the washing water treatment after use is difficult, the environmental protection cost is increased, the number of drum stages is too small, the production capacity is too small, and it cannot be large-scale a series of disadvantages

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