Expanded ammonium nitrate and preparation method thereof
A technology for expanding ammonium nitrate and ammonium nitrate, which is used in explosives and other directions, can solve the problems of investing a lot of money and other problems, and achieve the effect of improving the density, high density and small particle size of explosives.
Active Publication Date: 2013-11-06
青海海西东诺化工有限公司
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Problems solved by technology
In actual production and application, the traditional production process is often used. The main reason is that if the new process is adopted, the vacuum crystallizer and the spiral drug mixing machine need to be technically transformed, and many new equipment need to be invested, and a large amount of money is required.
Method used
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Experimental program
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specific Embodiment
[0010] Specific examples are as follows: add a certain amount of water in the water phase dissolution tank, and the ammonium nitrate after metering and crushing is transported to the water phase tank by the screw conveyor for dissolution, and nitric acid is added when the ammonium nitrate gradually dissolves and the temperature rises to 100°C Sodium, Bulking Agents and Motor Oil. The amount of ammonium nitrate, expanding agent, sodium nitrate, engine oil and water is based on the mass addition ratio of each tank: ammonium nitrate 1500: expanding agent 3: sodium nitrate 2: engine oil 2: water 120, until the materials in the tank are completely dissolved , When the temperature of the liquid material reaches 125 ° C ~ 135 ° C, the solution is input into the crystallizer for expanded crystallization, and the vacuum degree of crystallization is kept above -0.090 MPa.
[0011] Spiral drug mixing, sieving, cooling drug and drug charge packaging are the same as the traditional process...
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The invention relates to an intermediate product for explosive manufacturing and a preparation method thereof, and concretely relates to high-quality expanded ammonium nitrate and a preparation method thereof. The invention aims to solve problems that the charging density of explosives produced with traditional technologies is small, the explosion speed is not high, and the amount of toxic gases generated by explosion is large. The expanded ammonium nitrate mainly comprises, by weight, 99.0-99.5% of ammonium nitrate, 0.1-0.5% of sodium nitrate, 0.1-0.5% of machine oil and 0.15-0.2% of an expanding agent. In the production process, a certain amount of sodium nitrate and a certain amount of the machine oil are added in a water phase preparation, so the expanded ammonium nitrate has the advantages of small granularity, easy fragmentation and large density, and the surface activity of the expanding agent is improved. The expanded ammonium nitrate explosive produced in the invention has the characteristics of large charging density, high explosion speed, and small amount of the toxic gases produced in explosion.
Description
technical field [0001] The invention relates to an intermediate product for manufacturing explosives and a preparation method thereof. Specifically, the invention relates to an expanded ammonium nitrate and a preparation method thereof. Background technique [0002] Expanded ammonium nitrate is the main component of expanded ammonium nitrate explosives. The first process of manufacturing expanded ammonium nitrate explosives is to produce expanded ammonium nitrate. The main components of existing expanded ammonium nitrate explosives include expanded ammonium nitrate, composite oil phase, wood powder and flame suppressant, and its preparation process is mainly divided into two types: one is the water-oil phase mixed expansion process technology: ammonium nitrate, expanded The expanded ammonium nitrate explosives are made by adding a certain proportion of wood powder or flame suppressant to the expanded ammonium nitrate explosive which is made by adding a certain proportion of ...
Claims
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IPC IPC(8): C06B31/28
Inventor 钟传生吴我长朱广杰刘银徐敬华兰军罗培炜谢仁英
Owner 青海海西东诺化工有限公司