CN105272788A - Life-saving chlorate solid oxygen ignition agent and preparation method thereof - Google Patents
Life-saving chlorate solid oxygen ignition agent and preparation method thereof Download PDFInfo
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- CN105272788A CN105272788A CN201410346650.1A CN201410346650A CN105272788A CN 105272788 A CN105272788 A CN 105272788A CN 201410346650 A CN201410346650 A CN 201410346650A CN 105272788 A CN105272788 A CN 105272788A
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- oxymuriate
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Abstract
A life-saving chlorate solid oxygen ignition agent and a preparation method thereof are provided. The ignition agent is prepared from the following raw materials by the mass percentage through a press process: 30%-60% of chlorate, 10%-40% of a metal powder, 1%-10% of metal oxide, 1-6% of barium peroxide, and 15%-35% of sodium-based bentonite. The ignition agent can better have the properties of easy ignition, high energy, low sensibility, high pressing safety and the like, and solves the following deficiencies of a conventional ignition agent: with adopting of a manual coating preparation process, the conventional ignition agent has large density difference, and is easy to fall off and relatively poor in quality consistency; a drying process is complex, energy consumption is high, and the production efficiency is relatively low; and a large amount of chlorine gas harmful to human bodies is produced and brings disadvantages to oxygen purification. After multiple times of ignition experiments, the ignition agent can be reliably ignited by electric ignition, mechanical impacting of a fire hat and heating of a resistance wire at the temperature of -40 DEG C to 80 DEG C, can successfully reliably ignite a chlorate solid oxygen main body, and ensures the generator start-up success rate.
Description
Technical field
The present invention relates to a kind of ignition powder and the preparation technology thereof that consolidate oxygen powder column for starting lifesaving oxymuriate, being applicable to electric ignition or mechanical impact ignition trigger.
Background technology
Gu oxygen is the emergency oxygen supply equipment of new generation utilizing rich oxygen containing oxymuriate or perchlorate generation pyrolysis to release the principle development of oxygen.Gu the advantage of oxygen is: Gu the oxygen life-span is very long, without the need to spare part, ensure stronger; Oxygen-producing amount is high, under the condition producing equal oxygen, Gu the volume of oxygen only has 1/3 of high-pressure oxygen cylinder volume, for solid O_2 transport, storage, layout are provided convenience; Gu oxygen can carry out oxygen supply according to the offering oxygen way of design in advance, without the need to regulating, use simple, reliable; Gu oxygen stores and uses all under atmospheric pressure state, not having that Keep Clear-High Voltage, just there is not detonation, explosion hazard at the solid oxygen of oxygen supply in gunslinging.Gu oxygen is non-maintaining, the maintenance cost after equipment can be reduced.Gu oxygen apparatus of oxygen supply has now been widely used in boats and ships naval vessels, aerospace, mine and various disaster as lifesaving emergency oxygen apparatus and the field such as has saved oneself.Gu oxygen powder column adopts compression molding, density is comparatively large, need be caused start by ignition system.Small-sized solid oxygen product, for the solid oxygen self-rescue equipment of carried type, is applicable to mechanical impact fire in a stove before fuel is added mode and starts.Larger solid oxygen product, as coal mine refuge chamber or life-saving capsule apparatus of oxygen supply, leaves equipment compartment in, does not carry with, be applicable to electric Starting mode, meets remote isolated operation and realizes automatically controlling oxygen supply.
The solid oxygen ignition powder of oxymuriate generally should have following characteristics: (1) all can more easily light under high and low temperature state; (2) there is higher-energy, releasing a large amount of heats to light solid oxygen main body when burning; (3) sensitivity is low, has good manufacture technics performance.But in practice, these performances are difficult to have both.Therefore, some difficult points below existing in the process that it manufactures: (1) sensitivity is higher, are dry mixed and make danger such as there is burning, blast, so a lot of ignition powder is made by mechanical compaction after wet mixing or manual mode of smearing; (2) bonding force between dry medicinal powder is less, compression moulding difficulty; (3) in order to easily light, sometimes need to introduce some as cobalt chloride and so on and can discharge the starting material of obnoxious flavour, it is unfavorable to come to oxygen purification zone, affect the overall performance that oxymuriate consolidates oxygen.
, there is following shortcoming in ignition powder described in Chinese patent CN1817824A, CN103204755A: (1) adopts and manual smears preparation technology, has that density variation comes off greatly, easily, quality conformance is poor; (2) adopt wet mixing mode, drying course is complicated, and energy consumption is high, and production efficiency is lower; (3) titanium valve on surface easily comes off; (4) cobalt chloride used is when burning, and can produce chlorine harmful in a large number, it is unfavorable to bring to the purification of oxygen.
And the present invention can take into account the properties that ignition powder must have preferably, overcome the shortcoming and defect of existing ignition powder.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art provide the solid oxygen powder column of a kind of oxymuriate that can ignite, high reliability, high/low temperature use properties all to meet corresponding product technological standard, realize the solid oxygen ignition powder of lifesaving oxymuriate that automatic remote control starts solid oxygen, the raising ignition powder batch quality of production and production efficiency.
The present invention also aims to the preparation method that the solid oxygen ignition powder of above-mentioned lifesaving oxymuriate is provided.
Technical solution of the present invention is: the solid oxygen ignition powder of a kind of lifesaving oxymuriate, and the raw material comprising following mass percent adopts pressing process to make: (apart from outside explanation, the ratio adopted in the present invention is weight proportion)
Oxymuriate 30% ~ 60%; Metal powder 10% ~ 40%; Metal oxide 1% ~ 10%; Barium peroxide 1-6%; Caking agent 10% ~ 35%.
Oxygenant of the present invention is oxymuriate, and described oxymuriate is one or both the mixture in sodium chlorate, potassium perchlorate.Sodium chlorate fusing point 248 DEG C, decomposition temperature is about 300 DEG C, potassium perchlorate fusing point 525 DEG C, and decomposition temperature is about 600 DEG C.The ignition powder residue of the low oxygenant of decomposition temperature is adopted easily to flow, poor, the forming of oxygenant residue flowing that decomposition temperature is high; The ignition powder of the oxygenant composition that decomposition temperature height is different can ensure that ignition powder starts soon, residue does not flow.Low decomposition temperature oxygenate content is higher, and ignition powder flow phenomenon aggravates, and jeopardizes product safety; High decomposition temperature oxygenate content is higher, starts slower; Rational oxygenate content proportioning both can ensure the reliability that ignition powder starts, and can ensure that again ignition powder residue does not flow.Meanwhile, oxidizer decomposes produces oxygen, and other class ignition powder oxidizer decomposes can be avoided to produce the toxic and harmfuls such as oxynitride.
Combustible agent of the present invention is metal powder, and described metal powder is one or both the mixture in titanium valve, iron powder.Iron powder ignition temperature is 430 DEG C, and titanium valve ignition temperature is 375 DEG C.The ignition temperature of different metal powder is different, directly determines igniting reliability; The metal powder of low ignition temperature easily causes ignition powder to splash; Low ignition temperature and high ignition temperature with the use of, can ensure that ignition powder both easily started, and did not splash again.Metal powder content is higher, and ignition powder flow phenomenon increases, and jeopardizes product safety; Metal powder content is too low, easily stops working under ignition powder low temperature condition; Rational metal powder content both can ensure the reliability that ignition powder starts, and can ensure that again ignition powder residue does not flow.
Catalyzer of the present invention is metal oxide, and described metal oxide is one or both the mixture in ferric oxide powder, cobalt sesquioxide, and the decomposition temperature of oxygenant is higher, and catalyzer plays the effect of the decomposition temperature reducing sodium chlorate.
Caking agent of the present invention is sodium bentonite, neusilin, one or more mixture kaolinic.Sodium bentonite has effect that is bonding and reduction medicinal powder sensitivity, is convenient to the dry-pressing formed of ignition powder, strengthens the intensity of ignition powder, improve the security of ignition powder compacting simultaneously.
The granularity of oxymuriate of the present invention is 40 ~ 60 orders; Metal powder granularity is 200 ~ 400 orders; Metal oxide particle size is 800 ~ 1000 orders; The granularity of barium peroxide is 400 ~ 600 orders; Caking agent is 40 ~ 60 orders.
The preparation method of the solid oxygen ignition powder of lifesaving oxymuriate of the present invention is: be dry mixed medicinal powder by being mixed to get after above-mentioned raw materials oven dry, in proportion weighing; The medicinal powder that is dry mixed mixed is loaded in mould and is stamped into certain density and obtains the solid oxygen ignition powder of lifesaving oxymuriate.
The described density being dry mixed medicinal powder is 1.35g/cm
3~ 1.45g/cm
3, be 1.60g/cm by the density of the solid oxygen ignition powder of hydropress compacting gained lifesaving oxymuriate
3~ 2.0g/cm
3.
The mixing of medicine of the present invention need not be conventional the wet mixing that adds water, only carry out being dry mixed.
Chlorine-inhibiting agent is barium peroxide.Oxygenant is oxymuriate and perchlorate, and pyrolytic decomposition easily produces chlorine, and barium peroxide Absorbable rod chlorine, releases oxygen simultaneously.
Manufacture craft of the present invention directly adopts dry method to suppress, instead of traditional wet method is suppressed or wet mixing is smeared, and surface does not need to smear metallic titanium powder or other metal powder, greatly improves performance and the production efficiency of ignition powder.The present invention can take into account the easy igniting that ignition powder must possess, the performance that energy is high, sensitivity is low, height suppresses security etc. preferably, and the present invention adopts electric igniter or the igniting of the mechanical impact fire in a stove before fuel is added, and its energy is higher, reliable ignition can consolidate oxygen powder column; After ignition powder burning, residue does not flow, and guarantees product safety; Solve the low problem of processing quality difference efficiency of prior art, being also advantageous in that compared with prior art:
(1) ignition powder energy is high, is easy to igniting;
(2) sensitivity is lower, does not need wet mixing with regard to can be able to directly carry out being dry mixed mechanical compaction, improves performance and the manufacture craft of ignition powder, reduce energy consumption, ensure the consistence of ignition powder performance, improve the production efficiency of ignition powder;
(3) surface does not need to add titanium valve in addition, reduces production process;
(4) do not discharge the starting material such as the cobalt chloride of obnoxious flavour containing the meeting that existing ignition powder is used in formula of the present invention, chlorine harmful in a large number can not be produced, be conducive to the purification of oxygen.
Ignition powder of the present invention, through repeatedly light-off trial, at-40 DEG C ~ 80 DEG C by electric ignition, mechanical type percussion cap and resistive heater reliable ignition, and can be consolidated oxygen main body by reliable ignition oxymuriate smoothly, ensure that the success ratio that producer starts.
Embodiment
embodiment 1
Sodium chlorate 43%, potassium perchlorate 5%, iron powder 5%, titanium valve 20%, cobalt sesquioxide 1%, ferric oxide 4%, barium peroxide 2%, sodium bentonite 20%, add in mortar after weighing in proportion after above-mentioned drying materials, use glass bat manual mixing or use automatic blender to mix, cross 40 mesh sieves, until mix; The medicinal powder mixed is loaded in mould, uses hydropress compacting, obtain the ignition powder can consolidating oxygen with electric igniter or rum point duration and degree of heating reliable ignition oxymuriate.
embodiment 2
Sodium chlorate 40%, titanium valve 30%, ferric oxide 5%, barium peroxide 5%, sodium bentonite 20%, adds in mortar after being weighed in proportion by above-mentioned material, uses glass bat to mix, crosses 40 mesh sieves.Until mix; The medicinal powder mixed is loaded in mould, uses hydropress compacting, obtain the ignition powder can consolidating oxygen with electric igniter or rum point duration and degree of heating reliable ignition oxymuriate.
embodiment 3
Sodium chlorate 35%, potassium perchlorate 5%, iron powder 5%, titanium valve 24%, cobalt sesquioxide 3%, ferric oxide 2%, barium peroxide 1%, sodium bentonite 25%, add in mortar after weighing in proportion after above-mentioned drying materials, use glass bat manual mixing or use automatic blender to mix, cross 40 mesh sieves, until mix; The medicinal powder mixed is loaded in mould, uses hydropress compacting, obtain the ignition powder can consolidating oxygen with electric igniter or rum point duration and degree of heating reliable ignition oxymuriate.
Claims (8)
1. the solid oxygen ignition powder of lifesaving oxymuriate, is characterized in that: the raw material comprising following mass percent: oxymuriate 30% ~ 60%; Metal powder 10% ~ 40%; Metal oxide 1% ~ 10%; Barium peroxide 1-6%; Caking agent 10% ~ 35%.
2. lifesaving oxymuriate consolidates oxygen ignition powder according to claim 1, it is characterized in that: described oxymuriate is one or both the mixture in sodium chlorate, potassium perchlorate.
3. lifesaving oxymuriate consolidates oxygen ignition powder according to claim 1, it is characterized in that: described metal powder is one or both the mixture in titanium valve, iron powder.
4. lifesaving oxymuriate consolidates oxygen ignition powder according to claim 1, it is characterized in that: described metal oxide is one or both the mixture in ferric oxide powder, cobalt sesquioxide.
5. the solid oxygen ignition powder of lifesaving oxymuriate according to claim 1, is characterized in that: described caking agent is sodium bentonite, neusilin, one or more mixture kaolinic.
6. lifesaving oxymuriate consolidates oxygen ignition powder according to claim 1, it is characterized in that: the granularity of described oxymuriate is 40 ~ 60 orders; Metal powder granularity is 200 ~ 400 orders; Metal oxide particle size is 800 ~ 1000 orders; The granularity of barium peroxide is 400 ~ 600 orders; Caking agent is 40 ~ 60 orders.
7. a preparation method for the solid oxygen ignition powder of lifesaving oxymuriate described in claim 1, is characterized in that: mix after described raw material stoving, in proportion weighing; The dry medicinal powder mixed directly is loaded compacting in mould and obtain the solid oxygen ignition powder of lifesaving oxymuriate.
8. the preparation method of the solid oxygen ignition powder of lifesaving oxymuriate according to claim 7, is characterized in that: described in be dry mixed medicinal powder density be 1.35g/cm
3~ 1.45g/cm
3, be 1.60g/cm by the density of the solid oxygen ignition powder of hydropress compacting gained lifesaving oxymuriate
3~ 2.0g/cm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346650.1A CN105272788A (en) | 2014-07-21 | 2014-07-21 | Life-saving chlorate solid oxygen ignition agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410346650.1A CN105272788A (en) | 2014-07-21 | 2014-07-21 | Life-saving chlorate solid oxygen ignition agent and preparation method thereof |
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| CN105272788A true CN105272788A (en) | 2016-01-27 |
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| CN201410346650.1A Pending CN105272788A (en) | 2014-07-21 | 2014-07-21 | Life-saving chlorate solid oxygen ignition agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031474A (en) * | 2021-12-24 | 2022-02-11 | 湖北航天化学技术研究所 | Oxygen candle ignition powder and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035248A (en) * | 1989-01-28 | 1989-09-06 | 中国科学院青海盐湖研究所 | Oxygen candle of sodium chlorate |
| CN1817824A (en) * | 2005-12-30 | 2006-08-16 | 中国航天科技集团公司第四研究院第四十二所 | Chlorate oxygen column as ignitor and production thereof |
| CN103204755A (en) * | 2012-12-21 | 2013-07-17 | 湖北航天化学技术研究所 | Ignition drug for lifesaving solid oxygen and preparation method thereof |
| CN103213948A (en) * | 2012-12-12 | 2013-07-24 | 湖北航天化学技术研究所 | Temperature-insensitive oxygen candle |
-
2014
- 2014-07-21 CN CN201410346650.1A patent/CN105272788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035248A (en) * | 1989-01-28 | 1989-09-06 | 中国科学院青海盐湖研究所 | Oxygen candle of sodium chlorate |
| CN1817824A (en) * | 2005-12-30 | 2006-08-16 | 中国航天科技集团公司第四研究院第四十二所 | Chlorate oxygen column as ignitor and production thereof |
| CN103213948A (en) * | 2012-12-12 | 2013-07-24 | 湖北航天化学技术研究所 | Temperature-insensitive oxygen candle |
| CN103204755A (en) * | 2012-12-21 | 2013-07-17 | 湖北航天化学技术研究所 | Ignition drug for lifesaving solid oxygen and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 焦清介 等: "《烟火辐射学》", 30 September 2009 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031474A (en) * | 2021-12-24 | 2022-02-11 | 湖北航天化学技术研究所 | Oxygen candle ignition powder and preparation method thereof |
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Application publication date: 20160127 |
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