Preparation method of emulsion explosive aqueous solution

Abstract

The invention discloses a preparation method of an emulsion explosive aqueous solution, which comprises the steps of preparing sodium nitrate and water into a sodium nitrate aqueous solution at one time, preparing the sodium nitrate aqueous solution into an aqueous solution through a pipeline, a pipeline filter and a pipeline mixer, and pumping the aqueous solution into an aqueous storage tank to prepare the emulsion explosive aqueous solution. The method has the beneficial effects that potential safety hazards in the process of storing a high-temperature and high-concentration ammonium nitrate solution are avoided; according to the weight and concentration of the ammonium nitrate solution, after the preparation of the required sodium nitrate aqueous solution is completed at one time, the water phase preparation workshop is unmanned; the uniform mixing of the aqueous solution is ensured; and the ammonium nitrate solution and the sodium nitrate aqueous solution are mixed through the pipeline mixer in the conveying process to complete preparation of the aqueous solution, manual operation errors caused by multiple times of preparation of the aqueous solution are avoided, and the process is simple, continuous, high in automation degree, short in preparation time, safe and energy-saving.

Description

technical field [0001] The invention relates to the technical field of emulsion explosive production, in particular to a method for preparing an emulsion explosive aqueous phase solution. Background technique [0002] At present, the application of ammonium nitrate solution in the production of emulsion explosives has obvious economic and social benefits, and meets the requirements of the "Guiding Opinions on Technical Progress of the Civil Explosive Industry". At present, the preparation of emulsified explosive aqueous phase solution with ammonium nitrate solution generally adopts the following process method: [0003] 1. Storage of ammonium nitrate solution: Store the ammonium nitrate solution with a concentration of about 93% and a temperature of about 125°C in a storage tank with a heating and heat preservation device. The storage temperature is not lower than the crystallization point temperature of the ammonium nitrate solution. [0004] 2. Preparation of water phase ...

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Problems solved by technology

[0009] 2) Storage of high-temperature, high-concentration ammonium nitrate solution increases energy consumption

In order to prevent the crystallization of ammonium nitrate, measures such as storage tank insulation and steam heating are required to keep the temperature of the ammonium nitrate solution higher than its crystallization point. At the same time, the aqueous phase solution is prepared repeatedly. The equipment runs for a long time and increases energy consumption.

[0011] 3) Continuous and low degree of automation are not conducive to less people, unmanned and stable product quality

[0012] In the production process, the aqueous phase solution needs to be prepared repeatedly by the operator, which cannot achieve continuous and automatic operation. On the one hand, it increases the number of fixed operators in the dangerous goods factory, which is not conducive to less people and unmanned operations. On the other hand, it increases the manpower The Risk of Ingredient Errors