Piston material pushing centrifugal machine and feeding method thereof

Abstract

The invention discloses a piston material pushing centrifugal machine. The machine comprises a main shaft, a push rod, a rotary drum, a pusher, a distributor, a driving mechanism, a rotary drum reinforcing structure, a main shaft supporting structure, a sleeve and a machine shell arranged outside the rotary drum; one end of the rotary drum reinforcing structure is fixed to the sleeve, and the other end of the rotary drum reinforcing structure is fixed to the rotary drum wall of the rotary drum; the push rod is of a hollow tubular structure, a material channel communicating with an internal pipeline of the push rod is arranged on the position, between the pusher and the distributor, of the main shaft and / or the push rod, and materials enter a gap between the pusher and the distributor through the material channel and then enter the interior of the rotary drum; and a washing water channel communicating with the interior of the push rod is formed in the middles of the main shaft, the pushrod and the sleeve, and washing water enters the interior of the rotary drum through the washing water channel. According to the machine, through a multi-point supporting structure and an unique feeding method, the rotary drum is large in diameter, high in rotating speed, long in filtering area length, and large in rotary drum stage number, and the advantages that the vibration is not prone to occur, the separation factor is large, the water content of filter residue is low, the water equivalent of the washing water is small, the production capacity is large, and the enlargement is availableare achieved.

Description

technical field [0001] This patent relates to a centrifuge, specifically a piston pusher centrifuge and a feeding method thereof. 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 at the open end of the drum, and flows along the feed 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 from the feed pipe at the open end of the drum, the support of the main shaft of the conventional piston pusher centrifuge can only be made into a unilateral support structure, and the supporting structure is that the t...

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

[0009] The mechanical characteristics of unilateral support and cantilever structure limit the diameter, rotation speed, length of the filter area, and the increase of the number of stages of the drum, which in turn leads to easy vibration of the piston pusher centrifuge, small separation factor, and short material filtration time , 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-scaled, etc. shortcoming

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