초록 ▼

A method and apparatus for the production of explosive slurry composed of liquids containing fuels and oxidizing agent and under circumstances solid constituents and sensitizers, the state of aggregation of the slurry being controlled by the addition of thickening agents. The liquids are charge-wise

A method and apparatus for the production of explosive slurry composed of liquids containing fuels and oxidizing agent and under circumstances solid constituents and sensitizers, the state of aggregation of the slurry being controlled by the addition of thickening agents. The liquids are charge-wise mixed with the fuel and/or oxidizing agents, gelling agents and other constituents known in the art. From this batch or batches the product is then formed into a continuous, metered material flow into which a crosslinking agent is injected at a continuous and precisely controlled rate. Provision is also made for continuously and precisely injecting gassing and sensitizing agents. The crosslinking agent, and other agents if used, is/are uniformly distributed in a connecting, subsequent continuous mixing process before the stiffening material flow is fed to a continously operating cartridging machine after a thickening time which is controllable corresponding to the viscosity requirements of the cartridging process.

대표청구항 ▼

A process for the production of slurry explosives composed of liquids containing fuels and oxidizing agents, the aggregate condition of the slurry being variable by addition of cross-linking agents, and with the slurry being fed for packing to a packing machine, comprising the steps of batch mixing

A process for the production of slurry explosives composed of liquids containing fuels and oxidizing agents, the aggregate condition of the slurry being variable by addition of cross-linking agents, and with the slurry being fed for packing to a packing machine, comprising the steps of batch mixing liquids including water as a soluble diluent with fuels, oxidizing and gelling agents, forming a slurry, pumping the slurry through a pipe to form a continuous and constant material flow, the pumping causing a continuous metering of the material flow, continuously adding cross-linking agent at a predetermined controlled rate to the metered material flow, subsequently continuously distributing the cross-linking agent uniformly in the material flow by continuous, substantially non-turbulent mixing and automatically continuously thickening the material flow by action of the cross-linking agent for a thickening time which is controllable, corresponding to the viscosity requirements of a subsequent packing process, subsequently continuously, without accumulation, feeding the thickened material flow to a cartridging machine for packing, the pumping providing a sufficient pumping pressure to overcome the pressure drop in the pipe, the mixing and the thickening steps, and controlling the adding and metering steps to provide a constant viscosity at each stage in the operation of the process.