Method for evaluating emulsifying capacity of emulsifiers for emulsified explosives

A technology of emulsifying ability and emulsifying explosives, applied in the directions of flow characteristics, measuring devices, instruments, etc., can solve the problems of unusability, contradictory test results of high and low temperature cycle method, long investigation time of conductance method, etc., and achieves high reliability and operation. simple effect

Active Publication Date: 2013-09-04
BEIJING BGRIMM YIBO TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of emulsion explosives, the following problems often occur: for products from different manufacturers, although their performance indicators have reached the high-grade products in the national standard, the stability cannot be guaranteed under the premise that the production conditions and process parameters remain unchanged. good, good use, that is, sometimes it works well, and sometimes it works poorly or not at all
In addition, the conductometric method takes a long time to investigate and needs to be continuously tracked and monitored
[0011] The high and low temperature cycle method reflects the influence of temperature changes on the stability of explosives, which only reflects the stability of emulsion explosives from a certain aspect, and it is difficult to accurately predict the stability of emulsion explosives
In addition, the test results of the high and low temperature cycle method are sometimes contrary to the natural storage method
[0012] Because there are many problems in the above-mentioned common methods for evaluating the stability of latex matrix, there are corresponding problems in the method of investigating the stability of latex matrix by these methods and then inferring the pros and cons of emulsifiers

Method used

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  • Method for evaluating emulsifying capacity of emulsifiers for emulsified explosives
  • Method for evaluating emulsifying capacity of emulsifiers for emulsified explosives
  • Method for evaluating emulsifying capacity of emulsifiers for emulsified explosives

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example 1

[0037] The emulsifying ability of the commercially available polymer emulsifiers A, B, C, and D was evaluated by the method for evaluating the emulsifying ability of the emulsifier according to the present invention. Polymer emulsifier A is R102 emulsifier produced by Jinzhou Huifa Tianhe Chemical Co., Ltd., polymer emulsifier B is LZ2820 emulsifier produced by Lubrizol, and polymer emulsifier C is produced by Beijing General Research Institute of Mining and Metallurgy BEF emulsifier, polymer emulsifier D is T154 emulsifier produced by Jinzhou Petrochemical No. 6 Plant. The relevant technical indicators of polymer emulsifiers A, B, C, and D are shown in Table 1 below.

[0038] Table 1

[0039]

[0040] For each of polymer emulsifiers A, B, C, and D, 5 kg of latex base was prepared. Each latex matrix contains 72.9wt% of ammonium nitrate, 20wt% of water, 0.1wt% of citric acid, 2wt% of emulsifier, 5wt% of 46# machinery oil in the national standard GB / T7631.13-1995.

[0041]...

example 2

[0058] The emulsifying ability of the commercially available polymer emulsifiers A and E was evaluated using the method for evaluating the emulsifying ability of an emulsifier according to the present invention. Polymer emulsifier A is the R102 emulsifier produced by Jinzhou Huifa Tianhe Chemical Co., Ltd. used in example 1, and polymer emulsifier E is the solid T152 emulsifier produced by Jiangsu Hongguang Chemical Co., Ltd. The relevant technical indicators of polymer emulsifiers A and E are shown in Table 5 below.

[0059] table 5

[0060]

[0061] Since polymer emulsifiers A and E differ greatly in appearance, polymer emulsifier A is liquid, and polymer emulsifier E is solid, so first perform pre-separation of active ingredients on polymer emulsifier E and prepare a product with uniform active ingredient content Steps for testing samples.

[0062] Using the silica gel column separation method, take 500 grams of polymer emulsifier E and put it into the silica gel colum...

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Abstract

The invention provides a method for evaluating the emulsifying capacity of emulsifiers for emulsified explosives. The evaluation method comprises the following steps: for each one of various emulsifiers, preparing an emulsion matrix by using a specific emulsion matrix formula, a specific emulsifying process and a specific emulsifying device; determining the viscosities of different emulsion matrixes at a same temperature by using a specific viscosity determinator, and comparing the viscosities obtained through determination; and according to viscosity comparison results, evaluating the emulsifying capacity of the emulsifiers. The method disclosed by the invention is simple to operate, and can quickly and effectively compare the performance differences of different emulsifiers, therefore, the method is especially suitable to be applied to the quality monitoring on raw materials by production enterprises. In addition, the evaluation results obtained by using the method are consistent with investigation results obtained by using traditional natural storage methods, thus having extremely high reliability. The method disclosed by the invention also has an advantage of quantizable comparison.

Description

technical field [0001] The invention relates to the field of emulsion explosives, more specifically, to an evaluation method for the emulsifying ability of an emulsifier used in emulsion explosives. Background technique [0002] Emulsion explosive is to use the effect of emulsifier to disperse the droplets of oxidant salt solution evenly in the oil-phase continuous medium containing porous substances such as dispersed air bubbles or hollow glass microspheres to form a water-in-oil emulsion-like explosive. . In practice, as described in the patent document CN102001901A, the latex matrix and the sensitizer can be mixed at the application site and transported to the blasting site, so that the latex matrix can be sensitized at the blasting site to form an emulsion explosive. [0003] Emulsifier is a key component related to whether a stable water-in-oil latex matrix can be formed, and its emulsifying ability directly affects the quality of emulsion explosives (for example, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/00
Inventor 马平谭本岭孙大为
Owner BEIJING BGRIMM YIBO TECH
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