Device for breaking a hard material

Details Device for breaking a hard material Device for breaking a hard material

1980-10-23

1982-12-14

Abercrombie, Willie G.

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

B02C 1900

Patent

active

043634516

ABSTRACT:
A liquid jet cannon having a reciprocably movable piston device (6). The piston device is held in cocked position against the action of a gas pressure accumulator (19) by liquid pressure in a first chamber (15) until initiation of a power stroke. The power stroke is initiated by depressurization of a control chamber (16), whereby a valve (11) is moved to its open position so that a flow communication (39) is created between the first chamber (15) and a second chamber (17). The first chamber is thus rapidly depressurized so that the pressure in the gas pressure accumulator (19) drives the piston device (6) into a liquid chamber (14) to produce a liquid jet pulse for breakage of the hard material.

REFERENCES:
patent: 2830769 (1958-04-01), Work
patent: 2928614 (1960-03-01), Emanuel et al.
patent: 3458139 (1969-07-01), Edebo

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