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Process for preparing emulsion explosive by on-site upward deep hole filling

A technology of emulsion explosives and process methods, which is applied to explosives processing equipment, explosives, offensive equipment, etc., can solve the problems of drug waste, poor blasting effect, and high cost, and achieve the effects of cost reduction, resource saving, and no drug waste

Active Publication Date: 2014-02-05
CHINA GEZHOUBA GRP YIPULI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of the existing technology: in the process of charging upwards into the deep hole, the problem of drug leakage or insufficient filling is likely to occur, resulting in poor blasting effect, serious waste of drugs, and high cost

Method used

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  • Process for preparing emulsion explosive by on-site upward deep hole filling

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Experimental program
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Effect test

Embodiment 1

[0024] A process method for preparing emulsion explosives by filling deep holes upwards on site, comprising the following process steps:

[0025] (1) Preparation of emulsion

[0026] a. Water phase: mix sodium nitrate and ammonium nitrate in a ratio of 1:4 by weight, add water, mix evenly at 107.2°C, and adjust the pH value to 6 with concentrated ammonia water;

[0027] b. Oil phase: Mix maleic anhydride / styrene copolymer with dodecyl alcohol and n-decyl alcohol in a ratio of 7:1:1 by weight, and stir and react at 60°C for 2 hours to obtain reactant A, Then take 150g of reactant A, add 49g of neutral oil and 1g of diethylethanolamine to reactant A, heat to 90°C-100°C and continue the reaction for 4h to obtain an oil phase;

[0028] c. Mixing and emulsification of the water phase and the oil phase: heat the above water phase to 107.2°C, then add it into the oil phase at a rate of 200g per 3min, and stir under low shear conditions until a low-viscosity emulsion is formed, and t...

Embodiment 2

[0032] A process method for preparing emulsion explosives by filling deep holes upwards on site, comprising the following process steps:

[0033] (1) Preparation of emulsion

[0034] a. Water phase: mix sodium nitrate and ammonium nitrate in a ratio of 1:8 by weight, add water, and mix evenly at 104.4°C, adjust the pH value to 4 with concentrated ammonia water;

[0035] b. Oil phase: Mix maleic anhydride / styrene copolymer with dodecanol and n-decyl alcohol in a ratio of 8:1:1 by weight, and stir and react at 70°C for 2 hours to obtain reactant A, Then take 150g of reactant A, add 49g of neutral oil and 1g of diethylethanolamine to reactant A, heat to 90°C-100°C and continue the reaction for 4h to obtain an oil phase;

[0036] c. Mixing and emulsification of the water phase and the oil phase: heat the above water phase to 104.4°C, then add it into the oil phase at a rate of 200g per 4min, and stir under low shear conditions until a low-viscosity emulsion is formed. The emulsi...

Embodiment 3

[0039] Embodiment 3: A kind of process method of carrying out deep hole filling on the spot to prepare emulsion explosive, consists of the following process steps:

[0040] (1) Preparation of emulsion

[0041] a. Water phase: mix sodium nitrate and ammonium nitrate in a ratio of 1:6 by weight, add water, mix evenly at 105°C, and adjust the pH value to 5 with concentrated ammonia water;

[0042] b. Oil phase: Mix maleic anhydride / styrene copolymer with dodecanol and n-decyl alcohol in a ratio of 7.5:1:1 by weight, and stir and react at 60°C-70°C for 2h to obtain the reaction Material A, and then take 150g of reactant A, and add 49g of neutral oil and 1g of diethylethanolamine to reactant A, heat to 90°C-100°C and continue the reaction for 4h to obtain an oil phase;

[0043] c. Mixing and emulsification of the water phase and the oil phase: heat the above water phase to 106°C, then add 200g to the oil phase at a rate of 3-4min, and stir under low shear conditions until a low-vi...

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Abstract

The invention discloses a process for preparing an emulsion explosive by on-site upward deep hole filling. The process is characterized by comprising the following steps: (1) preparation of the emulsion: a, preparation of an aqueous phase; b, preparation of an oil phase; and c, mixing emulsification of the aqueous phase and the oil phase; (2) upward hole charge and crosslinking to obtain the emulsion explosive: heating the emulsion to 76.7-85.6 DEG C, mixing the emulsion with a crosslinking agent by a charging machine, and quickly filling the emulsion into the hole, so as to obtain a hard and dry crosslinking emulsion explosive in a minute; and (3) sensitization treatment: adding a sensitizing material into the crosslinking emulsion explosive to finally form the emulsion explosive. According to process for preparing the emulsion explosive by on-site upward deep hole filling provided by the invention, the emulsion explosive can conduct rapid crosslinking during filling, and does not fall out off the hole, so as to realize no explosive waste, save resources and reduce the cost.

Description

technical field [0001] The invention belongs to the technical field of emulsion explosives, and in particular relates to a process for preparing emulsion explosives by filling deep holes upwards on site. Background technique [0002] Underground blasting is often encountered in mining and other projects, and the charge of deep hole blasting is to choose to charge the deep hole upwards. When charging the deep hole upwards, the bulk emulsion explosive is powdery, and the powdery powder is easy to scatter. The loss of particulate components destroys its material composition, so it cannot achieve the best density, dispersibility, water content and quality of mechanical mixture; or the bulk emulsion explosive is in the form of latex, and the latex is easy to fall out after filling the hole, and the drug is wasted Seriously, the cost is high. [0003] At present, there are two main ways to solve the problem of leakage or incomplete filling of upward hole charging: one is the phys...

Claims

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Application Information

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IPC IPC(8): C06B21/00F42D1/10
Inventor 贾紫永董云赵华平朱根华杜华善周桂松刘涛
Owner CHINA GEZHOUBA GRP YIPULI CO LTD
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