Intermediate-temperature-sensitized emulsion explosive and preparation method thereof

Abstract

The invention discloses an intermediate-temperature-sensitized emulsion explosive and a preparation method thereof. The emulsion explosive is obtained through sensitization of emulsion matrix and a sensitizer, wherein the weight ratio of the emulsion matrix to the sensitizer is 98-99.6:0.4-2; the emulsion matrix comprises 5-10 percentage by weight of oil phase and 90-95 percentage by weight of aqueous phase; the oil phase comprises 28-40 percentage by weight of an emulsifying agent and 60-72 percentage by weight of an oil phase material; the oil phase material is a compound formed by compounding complex wax with any two of liquid paraffin, mineral wax or microcrystalline wax. The preparation method comprises the following steps: the oil phase and the aqueous phase are pressurized through a screw pump and are then mixed in a static mixer to be subjected to pre-emulsification and fine emulsification, so as to obtain emulsion matrix, the emulsion matrix is cooled to 65-75 DEG C and is then pressurized again through the screw pump to be mixed with the sensitizer in the static mixer, and then the mixture is sensitized at a temperature of 65-75 DEG C, so as to obtain the intermediate-temperature-sensitized emulsion explosive. According to the intermediate-temperature-sensitized emulsion explosive and the preparation method thereof, the emulsion matrix has low viscosity at the temperature of 65-75 DEG C, the technical problem that during high-temperature sensitization, opposite phase of the oil phase material of the emulsion explosive is easily caused is solved, and the technical defect that sensitization bubbles are easily damaged when loading low-temperature-sensitized high-viscosity and high-hardness emulsion matrix is overcome.

Description

technical field [0001] The invention relates to an emulsion explosive in the field of industrial explosives, in particular to a medium-temperature-sensitized emulsion explosive and a preparation method thereof, belonging to the technical field of explosive preparation. Background technique [0002] In China's civil explosive industry, industrial explosives have made considerable progress in all aspects under the guidance of the "Technical Guidance Opinions" of the Ministry of Industry and Information Technology. Industrial explosives are mainly environmentally friendly and safe emulsion explosives. The technology and equipment of the emulsion explosive production line have achieved Highly intensive production, the number of online production personnel has been greatly reduced, and there is a certain degree of protection against mass deaths and injuries. However, in the use of explosive sensitization technology, the current high-temperature and low-temperature sensitization ha...

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Problems solved by technology

[0017] Another object of the present invention is to provide a preparation method of the above-mentioned emulsion explosive, which can solve the technical problem that the oil phase material of the emulsion explosive is easily reversed in high temperature sensitization, and also overcomes the high viscosity and high hardness latex matrix in low temperature sensitization Technical defect of destroying sensitized air bubbles during charge

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