Mixing block for explosive gas mixtures detonated in a combustion chamber

Claim 1

A mixing block structure for mixing components of an explosive gas mixture as they are delivered to an adjacent combustion chamber for confined explosion treatment of a solid object or material located therein, comprising a plurality of block-like bodies including: a principal block body having opposite end surfaces and in which are provided a first longitudinal bore extending from one to the other of said end surface, at least a part of which is a mixing chamber and which is disposed so as to lead mixed gas from said mixing chamber to said combustion chamber, duct means for leading at least two components of said mixture separately to said mixing chamber, said duct means including a pair of longitudinal bores for at least one component gas of said explosive mixture, each bore of said pair extending from one to the other of said end surfaces, and cross channels at opposite ends of one member of each of said pair of bores connecting it respectively to the other bore of said pair and to said mixing chamber, each said cross channel which connects with said mixing chamber being channeled in a said end surface of said principal block body and being open along its length at the said end surface, and an input-end cap block body shaped to fit against the end surface of the principal block body which is more remote from said combustion chamber and having a gas line connection channel, for connecting an external gas supply line through said cap block to the longitudinal bore of said pair in said principal block body for at least one component gas, which channel is that one of said pair not connected to said mixing chamber by one of said cross channels, said cap block also having a check valve for each said gas line connection interposed therein, and in which input cap block said cross channel which joins with the mixing chamber is channeled in the end surface of said principal body which said input-end cap block fits and is open at said end surface along its length, so as to be closed along its length by said input-end cap block, and wherein in said principal block said duct means includes a said pair of longitudinal bores for each of at least two gaseous components of said explosive mixture and in which said input-end cap block has a said gas line connection channel and a said valve for each said at least two gaseous components of said explosive mixture each body of said plurality of bodies also having bores located such that bolts are passed therethrough and thereby said bodies are held in alignment and screwed tightly together.