Method and device for breaking a hard compact material

Details Method and device for breaking a hard compact material Method and device for breaking a hard compact material

1977-11-17

1980-05-27

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

Breaking down by direct contact with fluid

175 67, 239101, 299 29, E21C 3712

Patent

active

042047153

ABSTRACT:
A hard compact material, such as rock, is broken by driving a longish mass body of relatively incompressible fluid, such as water, against the material to be broken. The mass body is caused to impact the material at a momentum required for breaking the material. The required momentum is obtained by adding the momentum of at least two fluid mass bodies. The longish mass body can be aligned with a drill hole by means of the drill bit and rod. The energy generator or fluid gun and the gun barrel can be made in separable units.

REFERENCES:
patent: 2840360 (1958-06-01), Jerusel
patent: 3055648 (1962-09-01), Lawrence et al.
patent: 3334657 (1967-08-01), Smith et al.
patent: 3601987 (1971-08-01), Chermensky et al.
patent: 3704966 (1972-12-01), Beck, Jr.
patent: 3729137 (1973-04-01), Cobb et al.
patent: 3784103 (1974-01-01), Cooley
patent: 3868967 (1975-03-01), Harding
patent: 3988037 (1976-10-01), Denisart et al.
patent: 4074779 (1978-02-01), Cheung et al.

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