Carbon black pelletizer

Details Carbon black pelletizer Carbon black pelletizer

1988-03-14

1988-12-06

Nozick, Bernard

Plastic article or earthenware shaping or treating: apparatus

Tumbling type agglomerating means for particulate material

425209, 425DIG230, 23314, 264117, B29C 6702

Patent

active

047893214

ABSTRACT:
Carbon black pelletizer comprising a pug-mill and rotor with at least one helix of pins attached to the rotor, the improvement which consists essentially inproviding a double wall cylindrical housing with an annulus therebetween. The inner wall being fabricated of a rigid metal grating, to the inside of which is bonded rubber or a similar resilient material, the annulus being supplied with a means to increase and/or decrease the volume therewithin thereby causing the resilient inner wall to flex removing from the inner wall the build up of black which forms during operation of the pelletizer. The improvement negates the need for alloy metals in the pelletizer housing, eliminates the carbon black build-up on the inner surface of the mill, and lessens the power requirements of the mill, the wear on the mill pins, and the tendency of the mill to discharge irregular, off-specification product.

REFERENCES:
patent: 3160395 (1964-12-01), Reising
patent: 3326642 (1967-06-01), Ruble
patent: 4222727 (1980-09-01), Adachi et al.

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