Sensitization method of deep hole blasting emulsion explosive

A technology of emulsion explosives and deep hole blasting, which is applied in the field of sensitization of emulsion explosives in deep hole blasting. It can solve the problem of mechanical mixtures that cannot achieve the best density, dispersion, and water content. Bulk emulsion explosives are easy to scatter and destroy the material composition of explosives. and other problems, to achieve the effect of simple production process operation process, excellent explosive performance, and no increase in detonator sensitivity

Inactive Publication Date: 2021-05-04
湖南雷鸣西部民爆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Underground blasting is often required in mining and other projects, while deep hole blasting requires upward deep hole charging. When charging upward, bulk emulsion explosives are easy to scatter, causing the loss of particle components and destroying the material composition of explosives. , thus failing to achieve optimum density, dispersibility, moisture content and quality of the mechanical mixture
Moreover, the existing bulk emulsion explosives are in the form of latex, and the latex is easy to fall out after being filled into the holes, resulting in serious waste of medicine and high cost
At present, the solution to the problem of charge leakage or incomplete filling in the upward hole is mainly the physical method of filling the hole, which is not only difficult to operate and has more terrain restrictions, but also directly affects the sensitivity of the detonator, increases the cost of explosives, and reduces the cost of explosives. Explosive ability

Method used

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  • Sensitization method of deep hole blasting emulsion explosive
  • Sensitization method of deep hole blasting emulsion explosive

Examples

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Effect test

Embodiment 1

[0039] The invention provides a method for sensitizing emulsion explosives for deep hole blasting, the specific steps are as follows:

[0040] Step 1: Preparation of the aqueous phase:

[0041] a. Transport ammonium nitrate, sodium nitrate and flame suppressant to the crusher in a ratio of 6:1:1 for crushing;

[0042] b. Conveying the metered crushed ammonium nitrate, sodium nitrate and flame suppressant into the water phase preparation tank;

[0043] c. According to the amount of ammonium nitrate, sodium nitrate and flame extinguishing agent input, a certain amount of water is added to the aqueous phase preparation tank, and concentrated ammonia water is added to adjust the pH value of the mixed liquid to 4;

[0044] d. Use a steam boiler to heat up to 105.3°C to dissolve the material;

[0045] e. Transport the material to the water phase storage tank for heat preservation and standby, which is the water phase;

[0046] Step 2: Preparation of the oil phase:

[0047] a. Mi...

Embodiment 2

[0061] The invention provides a method for sensitizing emulsion explosives for deep hole blasting, the specific steps are as follows:

[0062] Step 1: Preparation of the aqueous phase:

[0063] a. Transport ammonium nitrate, sodium nitrate and flame suppressant to the crusher in the ratio of 7:1.5:1.5 for crushing;

[0064] b. Conveying the metered crushed ammonium nitrate, sodium nitrate and flame suppressant into the water phase preparation tank;

[0065] c. According to the amount of ammonium nitrate, sodium nitrate and flame extinguishing agent input, a certain amount of water is added to the aqueous phase preparation tank, and concentrated ammonia water is added to adjust the pH value of the mixed liquid to 5;

[0066] d. Use a steam boiler to heat up to 106.8°C to dissolve the material;

[0067] e. Transport the material to the water phase storage tank for heat preservation and standby, which is the water phase;

[0068] Step 2: Preparation of the oil phase:

[0069]...

Embodiment 3

[0083] The invention provides a method for sensitizing emulsion explosives for deep hole blasting, the specific steps are as follows:

[0084] Step 1: Preparation of the aqueous phase:

[0085] a. Transport ammonium nitrate, sodium nitrate and flame suppressant to the crusher for crushing at a ratio of 6.5:1.25:1.25;

[0086] b. Conveying the metered crushed ammonium nitrate, sodium nitrate and flame suppressant into the water phase preparation tank;

[0087] c. According to the amount of ammonium nitrate, sodium nitrate and flame suppressant put in, add a certain amount of water to the water phase preparation tank, add concentrated ammonia water to adjust the pH value of the mixed liquid to 5.5;

[0088] d. Use a steam boiler to heat up to 106.7°C to dissolve the material;

[0089] e. Transport the material to the water phase storage tank for heat preservation and standby, which is the water phase;

[0090] Step 2: Preparation of the oil phase:

[0091] a. Mix the styrene...

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Abstract

The invention discloses a sensitization method of a deep hole blasting emulsion explosive, and particularly relates to the technical field of deep hole blasting emulsion explosive sensitization methods. The sensitization method specifically comprises the following steps: 1, preparing a water phase; 2, preparing an oil phase; 3, emulsifying the water phase and the oil phase; 4, charging a deep hole, and crosslinking to obtain an emulsion explosive; and 5, performing sensitization treatment: adding glass beads into the product obtained in step 4, and then adding an organic foaming agent and an accelerant to obtain the emulsion explosive. The texture of the emulsion explosive is changed by specially preparing the oil phase and cooperating with the subsequent cross-linking material, drug waste caused by falling of the emulsion explosive is prevented, it is guaranteed that the emulsion explosive has detonator sensitivity and does not increase the explosive cost, the polytetrafluoroethylene dispersion emulsion is an emulsifier, and the stability of the emulsion explosive is greatly improved. Through sensitization treatment on the emulsion explosive, the emulsion explosive has certain explosive capacity and very small explosion extinguishing diameter, and the explosive power of the explosive is increased.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of sensitization methods for deep hole blasting emulsion explosives, and in particular to a sensitization method for deep hole blasting emulsion explosives. Background technique [0002] Emulsion explosives generally refer to a class of droplets prepared by emulsification technology to make oxidant salt aqueous solution uniformly dispersed in the oil-phase continuous medium containing porous substances such as dispersed air bubbles or hollow glass microspheres, forming a water-in-oil type. Latex water-containing industrial explosives are a kind of water-containing explosives. Emulsion explosives are new products developed in the 1970s. In 1969, the United States first elaborated the emulsion explosive technology more comprehensively. The earliest emulsion explosive was not sensitive to detonators, and it must be detonated with the help of a relay primer when used. Later, with the ...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B31/30C06B23/00
CPCC06B21/0008C06B21/0058C06B23/00C06B23/003C06B31/30
Inventor 李亮亮王光峰王锦峰张天雷彭韬周光涛余嘉向昌圭吴兴鹏向成林
Owner 湖南雷鸣西部民爆有限公司
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