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High performance on-site mixed emulsified explosive

A technology for mixing and emulsifying explosives on site, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve the problems that hinder the promotion of mixed emulsified explosives on site, difficult to adjust the density, and low viscosity of explosives, so as to reduce labor intensity, The effect of low production cost and low blasting cost

Inactive Publication Date: 2009-07-08
ANHUI JIANGNAN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the explosives produced in my country are mainly packaged finished explosives, and the proportion of on-site mixed emulsified explosives is very small. Most of the on-site mixed emulsified explosives are self-produced and self-use mines. Emulsion explosives made by emulsifying water-phase materials (a mixture of ammonium nitrate, sodium nitrate and water) with a water content of more than 18% and liquid oil-phase materials (a mixture of emulsifier, diesel oil and engine oil) at room temperature. The viscosity of this explosive is It is relatively low, the density is difficult to adjust, and the explosive power is low, so that the unit consumption of the explosive in use is greater than that of the finished emulsion explosive, thus hindering the promotion of on-site mixed emulsion explosive production, and the water resistance is poor and the storage period shorter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 68kg of ammonium nitrate and 7kg of sodium nitrate into the crusher for crushing, and then send them into the melting tank filled with 15kg of water according to the proportion by the helical screw machine, heat it to 70-80°C and keep it warm to make an aqueous phase solution. Adjust the crystal point to 65±1°C, then add 0.1kg of nitric acid according to the ratio to adjust the pH value to 3.8-4.1, then add 0.1kg of additive sodium lauryl sulfate according to the ratio and stir thoroughly, after filtering, pump into the mixed explosive Standby in the water phase storage tank in the car; pump 1.4kg of emulsifier sorbitan monooleate, 2.8kg of filtered diesel oil and 1.4kg of engine oil into the mixing tank according to the ratio and fully stir to make The oil phase solution, after being filtered, is pumped into the water phase storage tank in the mixed explosive vehicle for standby; the mixed explosive vehicle drives into the blasting site, hangs a power take-off, and ...

Embodiment 2

[0020] Put 72kg of ammonium nitrate and 9kg of sodium nitrate into the crusher for crushing, and then send them into a melting tank filled with 17kg of water according to the ratio by an inclined screw machine, heat it to 70-80°C and keep it warm to make an aqueous phase solution, and make it decompose. Adjust the crystal point to 65±1°C, then add 0.3kg of nitric acid according to the ratio to adjust the pH value to 3.8~4.1, then add 0.3kg of sodium lauryl sulfate according to the ratio and stir thoroughly, after filtering, pump into the mixed explosive Standby in the water storage tank in the car; pump 1.6kg of emulsifier sorbitan monooleate, 3.2kg of filtered diesel oil and 1.6kg of engine oil into the mixing tank according to the ratio and fully stir to make The oil phase solution, after being filtered, is pumped into the water phase storage tank in the mixed explosive vehicle for standby; the mixed explosive vehicle drives into the blasting site, hangs a power take-off, and...

Embodiment 3

[0022] Put 70kg of ammonium nitrate and 8kg of sodium nitrate into the crusher for crushing, and then send them into a melting tank filled with 16kg of water according to the ratio by an inclined screw machine, heat it to 70-80°C and keep it warm to make an aqueous phase solution, and make it decompose. Adjust the crystal point to 65±1°C, then add 0.15kg of nitric acid according to the ratio to adjust the pH value to 3.8-4.1, then add 0.2kg of sodium lauryl sulfate according to the ratio and stir thoroughly, after filtering, pump into the mixed explosive Standby in the water phase storage tank in the car; pump 1.5kg of emulsifier sorbitan monooleate and 3kg of filtered diesel oil and 1.5kg of engine oil into the mixing tank according to the ratio and fully stir to make oil Phase solution, after being filtered, pumped into the water phase storage tank in the mixed explosive vehicle for standby; the mixed explosive vehicle drives into the blasting site, hangs a power take-off, an...

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Abstract

The invention relates to a high-performance emulsion explosive mixed and loaded on the spot. Ammonium nitrate and sodium nitrate are thrown into a crusher, are crushed, are sent to a melting pot filled with water according to mixture ratio, are heated to a temperature of between 70 and 80 DEG C and are kept at the temperature to prepare a water phase solution; an emulsifier, diesel oil and engine oil are pumped to a mixing tank and are fully stirred to prepare an oil phase solution; an explosive mixing and loading vehicle is driven to a blasting scene and is hung with a power takeoff device; when the pressure of a hydraulic pump is not less than 10 MPa, the water phase solution and the oil phase solution are automatically pumped to an emulsifier of the explosive mixing and loading vehicle according to proportion of 94:6; after emulsification, a sensitizing agent is added into a mixing device according to mixture ratio and is mixed to form medicine slurry; the medicine slurry is pressed to a hose reel by the pressure of a screw pump; the density and the temperature of the explosive are measured; and after the density and the temperature are qualified, the explosive is loaded to a blast hole for blasting. The high-performance emulsion explosive has high efficiency and a simple formula, reduces a packaging link, has low production cost and low blasting cost, reduces labor intensity of operators and field workers and is safe and reliable.

Description

technical field [0001] The invention relates to an emulsion explosive used in engineering blasting in large and medium-sized open-pit mines, specifically a high-performance emulsion explosive mixed on site. Background technique [0002] At present, the explosives produced in my country are mainly packaged finished explosives, and the proportion of on-site mixed emulsified explosives is very small. Most of the on-site mixed emulsified explosives are self-produced and self-use mines. Emulsion explosives made by emulsifying water-phase materials (a mixture of ammonium nitrate, sodium nitrate and water) with a water content of more than 18% and liquid oil-phase materials (a mixture of emulsifier, diesel oil and engine oil) at room temperature. The viscosity of this explosive is It is relatively low, the density is difficult to adjust, and the explosive power is low, so that the unit consumption of the explosive in use is greater than that of the finished emulsion explosive, thus h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B21/00
Inventor 熊立武欧飞能杨小四鲍传齐李孔啟方志梅迟平胡兰英
Owner ANHUI JIANGNAN CHEM IND CO LTD
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