US 8,464,624 B2 · Blast treatment method and blast treatment device

Abstract

A blast treatment method and an apparatus, which can perform the blast treatment of a treatment subject by using and securely initiating a blasting explosive having fluidity. The blast treatment method includes: a blasting preparation operation of housing a blasting explosive having fluidity in a container and placing the blasting explosive around a treatment subject as well as attaching an initiation device to the container; a housing operation of housing the container, the blasting explosive, and the treatment subject in a chamber; a decompression operation of decompressing the inside of the chamber; and a blasting operation of initiating the blasting explosive and blasting the treatment subject with the blasting explosive. In the decompression operation, the inside of the chamber is decompressed while a gas vent portion regulates the escape of the blasting explosive to the outside of the container and permits the escape of gases in the container to the outside.

Claims13

Dependent claims

A blast treatment method for carrying out blast treatment of a treatment subject, comprising:

a blasting preparation step of housing a blasting explosive having fluidity in a container and placing the blasting explosive around a periphery of the treatment subject as well as attaching an initiation device to the container;
a housing step of housing the container, the blasting explosive, and the treatment subject in a chamber;
a decompression step of decompressing an inside of the chamber in a state where the chamber is sealed after the housing step;
and
a blasting step of initiating the blasting explosive by the initiation device and blasting the treatment subject by the blasting explosive, wherein
the blasting preparation step includes the steps of:
providing the container with a gas vent portion that regulates escape of the blasting explosive from the container while permitting escape of gases in the container;
and hermetically sealing parts except the gas vent portion of the container, and
in the decompression step, an inside of the container is decompressed through the gas vent portion while the inside of the chamber is decompressed.

6 more elements

A blast treatment device for carrying out blast treatment of a treatment subject, comprising:

a blasting explosive having fluidity for blasting the treatment subject;
a container capable of housing the blasting explosive;
a chamber capable of being sealed in a state of housing the blasting explosive and the treatment subject therein;
a decompression device for decompressing an inside of the chamber;
and
a initiation device attached to the container and used for initiating the blasting explosive, wherein
the blasting explosive is placed around a periphery of the treatment subject in a state of being housed in the container, and
the container has a gas vent portion for regulating escape of the blasting explosive housed in the container to an outside of the container and permitting escape of gases in the container to the outside of the container.

5 more elements

Dependencies are inferred from the claim text.

Blast treatment method and blast treatment device

Life of this patent

Blast treatment method and blast treatment device

Life of this patent

Abstract

Claims13