Elevated temperature comminution of vulcanized rubber and other

Details Elevated temperature comminution of vulcanized rubber and other Elevated temperature comminution of vulcanized rubber and other

1985-01-04

1986-12-02

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241 23, 241DIG31, B02C 1912

Patent

active

046259228

ABSTRACT:
A slurry pump (40) pumps a slurry of vulcanized rubber pellets and water from a slurry mixing region (30) to a mill (B). The slurry passes through a comminuting zone (80) defined between an abrasive stator (66) and an abrasive rotor (76). As the slurry is comminuted in the comminuting zone, heat is generated, which heat is absorbed by at least the water. The comminuted rubber particles and water pass from the mill to a separator (C) which separates the rubber particles from the heated water. The heated water is conveyed to a hot water reservoir (24) from which it is recirculated to the slurry mixing region. Additional pellets from a pellet supply (10) are fed to the mixing region to be mixed with the recirculated heated water. In this manner, the slurry is preheated above room temperature prior to comminution. It has been found that increasing the water temperature to about 130.degree. F. rather than using city water of about 55.degree. F., increases the production rate of the mill by about 20 to 25 percent.

REFERENCES:
patent: 2211518 (1940-08-01), Scherbaum
patent: 2560807 (1951-07-01), Lobo
patent: 2833483 (1958-05-01), China
patent: 2909332 (1959-10-01), Brown et al.
patent: 4383650 (1983-05-01), Contal et al.
patent: 4394977 (1983-07-01), Mijala
patent: 4469284 (1984-09-01), Brubaker et al.

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