CN104792813A - Determination method and apparatus for moisture in aqueous phase of expanded ammonium nitrate explosive - Google Patents
Determination method and apparatus for moisture in aqueous phase of expanded ammonium nitrate explosive Download PDFInfo
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- CN104792813A CN104792813A CN201410029348.3A CN201410029348A CN104792813A CN 104792813 A CN104792813 A CN 104792813A CN 201410029348 A CN201410029348 A CN 201410029348A CN 104792813 A CN104792813 A CN 104792813A
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- ammonium nitrate
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Abstract
The invention discloses a determination method and apparatus for moisture in an aqueous phase of an expanded ammonium nitrate explosive. The method comprises the following steps: measuring crystallization point temperature of a high-temperature unsaturated aqueous-phase ammonium nitrate solution; and then calculating the water content of the high-temperature unsaturated aqueous-phase ammonium nitrate solution according to linear relation between the crystallization point temperature and the water content. According to the invention, in determination of the water content of the high-temperature unsaturated aqueous-phase ammonium nitrate solution, evaporation of moisture in the process of cooling can be prevented, so a measured moisture value accords with an actual moisture value of the aqueous phase; and thus, production can be effectively guided in real time. It only takes 5 min at most for measurement of one crystallization point by using the method, so determination time is substantially shortened compared with conventional determination methods which need 1.5 to 2.5 h for measurement of one crystallization point.
Description
Technical field
the present invention relates to a kind of bulking ammonium nitrate explosive aqueous phase determination of moisture method and device, belong to explosive aqueous phase determination of moisture technical field.
Background technology
in bulking ammonium nitrate explosive production run, aqueous phase moisture surveys its moisture by physics and chemistry room fast tester for water content or toluene distillation, that unsaturated for high temperature ammonium nitrate aqueous phase solution is cooled to room temperature by the nature type of cooling, its moisture is surveyed again with fast tester for water content or toluene distillation, in its cooling procedure, moisture evaporates a part, so measured moisture value does not conform to aqueous phase moisture in production reality, measure the actual value of value well below aqueous phase moisture in producting proportion, can not Instructing manufacture very well, and survey moisture length consuming time in this way, about needs 1.5 ~ 2.5 hours.
Summary of the invention
the object of the invention is to, a kind of bulking ammonium nitrate explosive aqueous phase determination of moisture method and device are provided, the actual value of aqueous phase moisture in producting proportion can be measured, in order to well to instruct bulking ammonium nitrate explosive to produce, thus overcome the deficiencies in the prior art.
technical scheme of the present invention:
a kind of bulking ammonium nitrate explosive aqueous phase determination of moisture method, the method first measures the crystallization point temperature of the unsaturated aqueous phase ammonium nitrate solution of high temperature, then calculates the water cut of the unsaturated aqueous phase ammonium nitrate solution of high temperature according to the linear relationship between crystallization point temperature and water cut.
in preceding method, the test of described crystallization point temperature is poured in ground Erlenmeyer flask by unsaturated for high temperature aqueous phase ammonium nitrate solution, immediately with narrow meshed cork by ground Erlenmeyer flask bottleneck jam-pack, the probe of thermometer is filled in the aperture of cork, continue the temperature of the record unsaturated aqueous phase ammonium nitrate solution of high temperature in cooling procedure, when having crystal to separate out in the unsaturated aqueous phase ammonium nitrate solution of high temperature, read the real time temperature of thermometer, namely this temperature value is the high temperature unsaturated aqueous phase ammonium nitrate solution crystallization point temperature of solution.
of the present invention a kind of bulking ammonium nitrate explosive aqueous phase moisture content determining device for said method is, this device comprises ground Erlenmeyer flask, the bottleneck of ground Erlenmeyer flask is provided with cork, cork is provided with instrument connection, thermometer probe is provided with in instrument connection, the probe of thermometer probe is positioned at the unsaturated aqueous phase ammonium nitrate solution of Erlenmeyer flask, and the thermometer probe other end is connected with Portable temperature meter through wire.
owing to have employed technique scheme, compared with prior art, the present invention, when measuring the water cut of the unsaturated aqueous phase ammonium nitrate solution of high temperature, can prevent the evaporation of moisture in cooling procedure, so measured moisture value conforms to aqueous phase moisture in production reality, can effective Instructing manufacture in real time.And method of the present invention often measures crystallization point maximum need consuming time 5 minutes, compared with needed for prior art assay method 1.5 ~ 2.5 hours, shortens minute greatly.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
being labeled as in accompanying drawing: 1-ground Erlenmeyer flask, 2-cork, 3-instrument connection, 4-thermometer probe, 5-pops one's head in, the unsaturated aqueous phase ammonium nitrate solution of 6-, 7-wire, 8-Portable temperature meter.
Embodiment
below in conjunction with accompanying drawing, the present invention is described in further detail, but not as any limitation of the invention.
a kind of bulking ammonium nitrate explosive aqueous phase determination of moisture method of the present invention is: as shown in Figure 1, the method first measures the crystallization point temperature of the unsaturated aqueous phase ammonium nitrate solution of high temperature, then calculates the water cut of the unsaturated aqueous phase ammonium nitrate solution of high temperature according to the linear relationship between crystallization point temperature and water cut.
in preceding method, the test of described crystallization point temperature is poured in ground Erlenmeyer flask by unsaturated for high temperature aqueous phase ammonium nitrate solution, immediately with narrow meshed cork by ground Erlenmeyer flask bottleneck jam-pack, the probe of thermometer is filled in the aperture of cork, continue the temperature of the record unsaturated aqueous phase ammonium nitrate solution of high temperature in cooling procedure, when having crystal to separate out in the unsaturated aqueous phase ammonium nitrate solution of high temperature, read the real time temperature of thermometer, namely this temperature value is the high temperature unsaturated aqueous phase ammonium nitrate solution crystallization point temperature of solution.
according to said method build and for of the present invention a kind of bulking ammonium nitrate explosive aqueous phase moisture content determining device of said method structural representation as shown in Figure 1, this device comprises ground Erlenmeyer flask 1, the bottleneck of ground Erlenmeyer flask 1 is provided with cork 2, cork 2 is provided with instrument connection 3, thermometer probe 4 is provided with in instrument connection 3, the probe 5 of thermometer probe 4 is positioned at the unsaturated aqueous phase ammonium nitrate solution 6 of Erlenmeyer flask 1, and thermometer probe 4 other end is connected with Portable temperature meter 8 through wire 7.
Embodiment
during concrete enforcement, actual in conjunction with production, by analyzing expanded ammonium nitrate water phase components, utilizing the linear relationship of crystallization point and moisture, directly controlling moisture with crystallization point.Concrete grammar is poured into by unsaturated for high temperature aqueous phase ammonium nitrate solution in ground Erlenmeyer flask 1 to use cork 2 by the bottleneck jam-pack of ground Erlenmeyer flask 1, cork 2 is provided with instrument connection 3, probe 5 one end of existing side by side by the thermometer probe 4 of Portable temperature meter 8 is inserted in the unsaturated aqueous phase ammonium nitrate solution 6 ground Erlenmeyer flask 1 from instrument connection 3, the unsaturated aqueous phase ammonium nitrate solution of high temperature cools gradually in ground Erlenmeyer flask 1, because the bottleneck of ground Erlenmeyer flask 1 is closed by cork 2, solution temperature moisture in reduction process can not evaporate.In cooling procedure, notice whether observe solution has ammonium nitrate crystals to separate out, when solution has crystal to separate out, read solution temperature, this temperature is the crystallization point temperature of solution, the concentration of solution can be obtained according to the relation of the solubleness at ammonium nitrate crystallization point temperature and temperature, thus control aqueous phase moisture.Each mensuration crystallization point temperature, maximum need consuming time 5 minutes, compared with needed for prior art assay method 1.5 ~ 2.5 hours, shorten minute greatly.Because method of the present invention is in cooling procedure, the moisture in solution can not evaporate, so the water cut recorded closely actual value, and can effective Instructing manufacture in real time.
Claims (3)
1. a bulking ammonium nitrate explosive aqueous phase determination of moisture method, it is characterized in that: the method first measures the crystallization point temperature of the unsaturated aqueous phase ammonium nitrate solution of high temperature, then calculates the water cut of the unsaturated aqueous phase ammonium nitrate solution of high temperature according to the linear relationship between crystallization point temperature and water cut.
2. method according to claim 1, it is characterized in that: the test of described crystallization point temperature is poured in Erlenmeyer flask by unsaturated for high temperature aqueous phase ammonium nitrate solution, immediately with narrow meshed cork by Erlenmeyer flask bottleneck jam-pack, the probe of thermometer is filled in the aperture of cork, continue the temperature of the record unsaturated aqueous phase ammonium nitrate solution of high temperature in cooling procedure, when having crystal to separate out in the unsaturated aqueous phase ammonium nitrate solution of high temperature, read the real time temperature of thermometer, namely this temperature value is the high temperature unsaturated aqueous phase ammonium nitrate solution crystallization point temperature of solution.
3. a bulking ammonium nitrate explosive aqueous phase moisture content determining device, comprise ground Erlenmeyer flask (1), it is characterized in that: the bottleneck of ground Erlenmeyer flask (1) is provided with cork (2), cork (2) is provided with instrument connection (3), thermometer probe (4) is provided with in instrument connection (3), the probe (5) of thermometer probe (4) is positioned at the unsaturated aqueous phase ammonium nitrate solution (6) of Erlenmeyer flask (1), and thermometer probe (4) other end is connected with Portable temperature meter (8) through wire (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029348.3A CN104792813A (en) | 2014-01-22 | 2014-01-22 | Determination method and apparatus for moisture in aqueous phase of expanded ammonium nitrate explosive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410029348.3A CN104792813A (en) | 2014-01-22 | 2014-01-22 | Determination method and apparatus for moisture in aqueous phase of expanded ammonium nitrate explosive |
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| CN104792813A true CN104792813A (en) | 2015-07-22 |
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| CN201410029348.3A Pending CN104792813A (en) | 2014-01-22 | 2014-01-22 | Determination method and apparatus for moisture in aqueous phase of expanded ammonium nitrate explosive |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543170A (en) * | 2013-09-26 | 2014-01-29 | 安徽雷鸣科化股份有限公司 | Method for quickly detecting concentration of ammonium nitrate solution |
| CN203720115U (en) * | 2014-01-22 | 2014-07-16 | 贵州久联民爆器材发展股份有限公司 | Aqueous-phase moisture determination device for expanded ammonium nitrate explosive |
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2014
- 2014-01-22 CN CN201410029348.3A patent/CN104792813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543170A (en) * | 2013-09-26 | 2014-01-29 | 安徽雷鸣科化股份有限公司 | Method for quickly detecting concentration of ammonium nitrate solution |
| CN203720115U (en) * | 2014-01-22 | 2014-07-16 | 贵州久联民爆器材发展股份有限公司 | Aqueous-phase moisture determination device for expanded ammonium nitrate explosive |
Non-Patent Citations (1)
| Title |
|---|
| 何西茹等: "膨化硝铵炸药水相水分快速测定方法", 《民用爆破器材理论与实践——中国兵工学会民用爆破器材专业委员会第七届学术年会论文集》 * |
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Application publication date: 20150722 |
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