CN111484383A - Thermal energy trigger and preparation method thereof - Google Patents
Thermal energy trigger and preparation method thereof Download PDFInfo
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- CN111484383A CN111484383A CN202010215144.4A CN202010215144A CN111484383A CN 111484383 A CN111484383 A CN 111484383A CN 202010215144 A CN202010215144 A CN 202010215144A CN 111484383 A CN111484383 A CN 111484383A
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C15/00—Pyrophoric compositions; Flints
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Abstract
The invention discloses a thermal energy trigger and a preparation method thereof, wherein the thermal energy trigger comprises the following raw materials: a combustible agent, an oxidant, a catalyst and a combustion improver. The composite material comprises the following raw materials in percentage by mass: 48 to 65 percent of combustible agent, 24 to 43.5 percent of oxidant, 0.8 to 5.0 percent of catalyst and 2.5 to 6 percent of combustion improver, wherein the sum of the mass percentages of the raw materials is 100 percent. The preparation method comprises the following steps: weighing the components according to the formula ratio; putting an oxidant, a catalyst and a combustion improver into a water bath or oil bath oven at 70 ℃ for drying for 24 hours; and (4) putting the dried raw materials and the combustible agent in the step one into a mixer, and mixing for a certain time to prepare a finished product of the heat energy trigger. The danger level of the heat energy trigger is reduced from 1 type to 4 types, so that the danger degree is reduced, the safety is improved, and the operation cost of related equipment is reduced; the temperature resistance of the thermal energy trigger is 180 ℃/48 h; the mechanical sensitivity and the detonator sensitivity are lower than those of black powder; the production process is simple, and the method has the advantage of low cost.
Description
Technical Field
The invention belongs to the technical field of pyrotechnic compositions, and is used for ignition of combustion blasting materials for oil fields, such as an igniter or a fire transmission mechanism which are matched with a bridge plug power device, a high-energy gas fracturing bomb and a combustion cutting bomb, and can also be used for ignition of military propellants.
Background
At present, ignition equipment used in the field of civil explosion of oil fields generally belongs to explosives, is divided according to the classification rules of dangerous goods of the united nations, belongs to a class of explosives, and also belongs to the management range of civil explosives of public security organs. In order to improve the intrinsic safety of ignition and ignition equipment, reduce the classification level of dangerous goods and reduce the operation cost of links such as production, purchase, transportation, use, maintenance and the like, the invention firstly proposes the concept of a heat energy trigger, and the heat energy trigger can replace black powder to be filled in various components such as a fire tube, an igniter and a fire transfer powder column.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a thermal energy trigger and a preparation method thereof, aiming at overcoming the defects in the prior art, wherein the classification grade of dangerous goods is 4 or 5, and the ignition and fire transfer functions meet the use requirements.
In order to achieve the purpose, the invention adopts the following technical scheme:
a thermal energy trigger comprises the following raw materials: a combustible agent, an oxidant, a catalyst and a combustion improver.
The invention also comprises the following technical characteristics:
specifically, the composite material comprises the following raw materials in percentage by mass: 48 to 65 percent of combustible agent, 24 to 43.5 percent of oxidant, 0.8 to 5.0 percent of catalyst and 2.5 to 6 percent of combustion improver, wherein the sum of the mass percentages of the raw materials is 100 percent.
Specifically, the composite material comprises the following raw materials in percentage by mass: 60% of combustible agent, 33.5% of oxidant, 0.8% of catalyst and 5.7% of combustion improver.
Specifically, the combustible agent is one or a combination of more than one of magnesium powder, aluminum powder and boron powder.
Specifically, the oxidant is one or a combination of more than one of polytetrafluoroethylene, ferric oxide and copper oxide.
Specifically, the catalyst is one or a combination of more than one of sodium fluoride, potassium fluoride and potassium dichromate.
Specifically, the combustion improver is one or a combination of more than one of manganese dioxide, ferric oxide and cuprous oxide.
The invention also provides a preparation method of the thermal energy trigger, which comprises the following steps:
weighing the components according to a formula ratio; putting an oxidant, a catalyst and a combustion improver into a water bath or oil bath oven at the temperature of 60-80 ℃ for drying for 12-24 h;
step two, putting the raw materials and the combustible agent dried in the step one into a mixer, and mixing for 30-45 min to prepare a finished product of the heat energy trigger;
and step three, hermetically packaging.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the danger level of the heat energy trigger is reduced from 1 type to 4 types, so that the danger degree is reduced, the safety is improved, and the operation cost of related equipment is reduced.
(2) The temperature resistance of the heat energy trigger prepared by the invention is 180 ℃/48h, which is higher than the temperature resistance of black powder (150 ℃/48 h).
(3) Besides spark sensitivity, the mechanical sensitivity and detonator sensitivity of the invention are lower than those of black powder.
(4) The invention has the advantages of easily obtained raw materials, simple production process and low cost.
Detailed Description
The invention provides a thermal energy trigger, which comprises the following raw materials: a combustible agent, an oxidant, a catalyst and a combustion improver.
The composite material comprises the following raw materials in percentage by mass: 48 to 65 percent of combustible agent, 24 to 43.5 percent of oxidant, 0.8 to 5.0 percent of catalyst and 2.5 to 6 percent of combustion improver, wherein the sum of the mass percentages of the raw materials is 100 percent.
The combustible agent is one or the combination of more than one of magnesium powder, aluminum powder and boron powder.
The oxidant is one or more of polytetrafluoroethylene, ferric oxide and copper oxide.
The catalyst is one or the combination of more than one of sodium fluoride, potassium fluoride and potassium dichromate.
The combustion improver is one or the combination of more than one of manganese dioxide, ferric oxide and cuprous oxide.
A preparation method of a thermal energy trigger is characterized by comprising the following steps:
weighing the components according to a formula ratio; putting an oxidant, a catalyst and a combustion improver into a water bath or oil bath oven at 70 ℃ for drying for 24 hours;
step two, putting the raw materials and the combustible agent dried in the step one into a mixer, and mixing for 30-45 min to prepare a finished product of the heat energy trigger;
and step three, hermetically packaging.
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
the embodiment provides a thermal energy trigger and a preparation method thereof, and the thermal energy trigger comprises the following raw materials in percentage by mass: 48% of a combustible agent, 43.5% of an oxidant, 2.5% of a catalyst and 6% of a combustion improver.
Specifically, the combustible agent is aluminum powder, the oxidant is polytetrafluoroethylene, the catalyst is potassium fluoride, and the combustion improver is manganese dioxide.
The preparation method of the thermal trigger comprises the following steps:
weighing the components according to a formula ratio; putting an oxidant, a catalyst and a combustion improver into a water bath or oil bath oven at 70 ℃ for drying for 24 hours;
step two, putting the raw materials and the combustible agent dried in the step one into a mixer, and mixing for 30-45 min to prepare a finished product of the heat energy trigger;
and step three, hermetically packaging.
Example 2:
the embodiment provides a thermal energy trigger and a preparation method thereof, and the main difference between the embodiment and the embodiment 1 is that the thermal energy trigger comprises the following raw materials in percentage by mass: 60% of combustible agent, 33.5% of oxidant, 0.8% of catalyst and 5.7% of combustion improver.
Specifically, the combustible agent is magnesium powder, the oxidant is polytetrafluoroethylene, the catalyst is sodium fluoride, and the combustion improver is ferric oxide. The thermal initiator was prepared by the same method and parameters as in example 1.
Example 3:
the embodiment provides a thermal energy trigger and a preparation method thereof, and the main difference between the embodiment and the embodiment 1 is that the thermal energy trigger comprises the following raw materials in percentage by mass: 62.5 percent of combustible agent, 30 percent of oxidant, 2.5 percent of catalyst and 5 percent of combustion improver.
Specifically, the combustible agent is aluminum powder, the oxidant is polytetrafluoroethylene, the catalyst is sodium fluoride, and the combustion improver is manganese dioxide. The thermal initiator was prepared by the same method and parameters as in example 1.
Example 4:
the embodiment provides a thermal energy trigger and a preparation method thereof, and the main difference between the embodiment and the embodiment 1 is that the thermal energy trigger comprises the following raw materials in percentage by mass: 57.5 percent of combustible agent, 35 percent of oxidant, 5 percent of catalyst and 2.5 percent of combustion improver.
Specifically, the combustible agent is aluminum powder, the oxidant is ferric oxide, the catalyst is sodium fluoride, and the combustion improver is manganese dioxide. The thermal initiator was prepared by the same method and parameters as in example 1.
Example 5:
the embodiment provides a thermal energy trigger and a preparation method thereof, and the main difference between the embodiment and the embodiment 1 is that the thermal energy trigger comprises the following raw materials in percentage by mass: 65% of a combustible agent, 24% of an oxidant, 5% of a catalyst and 6% of a combustion improver.
Specifically, the combustible agent is boron powder, the oxidant is polytetrafluoroethylene, the catalyst is sodium fluoride, and the combustion improver is manganese dioxide. The thermal initiator was prepared by the same method and parameters as in example 1.
Comparative example 1:
the comparative example provides a thermal trigger and a preparation method thereof, and is mainly different from example 1 in that the thermal trigger comprises the following raw materials in percentage by mass: 60% of a combustible agent, 38% of an oxidant and 2% of a combustion improver. No catalyst is added, specifically, the combustible agent is aluminum powder, the oxidant is polytetrafluoroethylene, the catalyst is sodium fluoride, and the combustion improver is manganese dioxide. The preparation method and parameters are the same as those in example 1, and a thermal trigger is prepared.
The above examples and comparative examples were characterized, specifically, the combustion heat test method: an oxygen bomb calorimeter measures the combustion heat of the calorimetric trigger; the oxygen bomb calorimeter is filled with water to absorb the heat released by the combustion of the thermal energy trigger; the heat released by the combustion of the thermal trigger can be calculated by measuring the rising value of the water temperature. The combustion temperature test method comprises the following steps: the non-contact temperature measurement method is adopted, and a colorimetric photoelectric temperature detector is used for measurement. The temperature resistance test method comprises the following steps: oven method. The friction sensitivity test method comprises the following steps: GJB770B- -2005 method 602.1 was used. As in table 1 below:
(1) as can be seen from table 1, the combustion heat and combustion temperature of each example are higher than those of the comparative example, and higher combustion heat and ignition temperature are advantageous for the igniter used therewith.
(2) The temperature resistance of the heat energy trigger prepared by each embodiment of the invention is 180 ℃/48h, which is higher than the temperature resistance of black powder (150 ℃/48 h);
(3) the friction sensitivity of each embodiment of the invention is lower than that of black powder, and the friction sensitivity of the black powder is 80% -100%. In each example, example 2 is excellent in manufacturability, easy in raw material availability, low in cost, and best in performance.
Table 1 results of performance test of examples and comparative examples
| Performance of | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 |
| Heat of combustion (kJ/g) | 7.5 | 8.0 | 8.8 | 7.8 | 9.0 | 7.0 |
| Combustion temperature (. degree.C.) | 2035 | 2092 | 2195 | 2082 | 2248 | 1945 |
| Temperature resistance (DEG C/4)8h) | 180 | 180 | 180 | 180 | 180 | 180 |
| Friction sensitivity (90 degree, 2.92MPa) | 0 | 0 | 0 | 0 | 0 | 0 |
Claims (8)
1. A thermal energy trigger is characterized by comprising the following raw materials: a combustible agent, an oxidant, a catalyst and a combustion improver.
2. The thermal trigger of claim 1, comprising the following raw materials in mass percent: 48 to 65 percent of combustible agent, 24 to 43.5 percent of oxidant, 0.8 to 5.0 percent of catalyst and 2.5 to 6 percent of combustion improver, wherein the sum of the mass percentages of the raw materials is 100 percent.
3. The thermal trigger of claim 1, comprising the following raw materials in mass percent: 60% of combustible agent, 33.5% of oxidant, 0.8% of catalyst and 5.7% of combustion improver.
4. The thermal trigger of claim 1, wherein the flammable agent is one or a combination of more than one of magnesium powder, aluminum powder, and boron powder.
5. The thermal trigger of claim 1, wherein said oxidizing agent is one or more of polytetrafluoroethylene, ferric oxide and copper oxide.
6. The thermal trigger of claim 1, wherein the catalyst is one or a combination of more than one of sodium fluoride, potassium fluoride and potassium dichromate.
7. The thermal energy trigger according to claim 1, wherein the combustion improver is one or more of manganese dioxide, ferric oxide and cuprous oxide.
8. The method of preparing a thermal trigger of claim 1, comprising the steps of:
weighing the components according to a formula ratio; putting an oxidant, a catalyst and a combustion improver into a water bath or oil bath oven at the temperature of 60-80 ℃ for drying for 12-24 h;
and step two, putting the raw materials and the combustible agent dried in the step one into a mixer, and mixing for 30-45 min to prepare a finished product of the heat energy trigger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010215144.4A CN111484383A (en) | 2020-03-24 | 2020-03-24 | Thermal energy trigger and preparation method thereof |
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| CN202010215144.4A CN111484383A (en) | 2020-03-24 | 2020-03-24 | Thermal energy trigger and preparation method thereof |
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| CN111484383A true CN111484383A (en) | 2020-08-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113956119A (en) * | 2021-02-09 | 2022-01-21 | 北京理工大学 | High-detonation-heat-type range-extending safe and environment-friendly firework propellant |
| CN114920613A (en) * | 2022-05-07 | 2022-08-19 | 北京宇箭动力科技有限公司 | Fire transfer powder column made of ultrahigh-burning-rate reactive material and preparation method and application thereof |
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2020
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| CN1724487A (en) * | 2005-07-07 | 2006-01-25 | 张鹏举 | Formula of high energy safety microsound blasting agent and its technology |
| CN101619007A (en) * | 2009-07-27 | 2010-01-06 | 西安近代化学研究所 | Charge unit for unexplosive metal tube annular cutting device and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113956119A (en) * | 2021-02-09 | 2022-01-21 | 北京理工大学 | High-detonation-heat-type range-extending safe and environment-friendly firework propellant |
| CN114920613A (en) * | 2022-05-07 | 2022-08-19 | 北京宇箭动力科技有限公司 | Fire transfer powder column made of ultrahigh-burning-rate reactive material and preparation method and application thereof |
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Application publication date: 20200804 |