CN203415151U - Powder explosion tester - Google Patents
Powder explosion tester Download PDFInfo
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- CN203415151U CN203415151U CN201320128180.2U CN201320128180U CN203415151U CN 203415151 U CN203415151 U CN 203415151U CN 201320128180 U CN201320128180 U CN 201320128180U CN 203415151 U CN203415151 U CN 203415151U
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- box
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- dust
- tester
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Abstract
The utility model relates to a powder explosion tester, comprising a test box, a powder box, a powder scattering pad, a tube, an air bag, a rubber plug, alcohol, a cotton ball, etc. The combustion chamber of the tester is prepared from BOPP heatproof plastic material, the toughness and the transparency of the combustion chamber are good, the internal structure of the tester can be seen, and the whole process of flour spraying, combustion and explosion can be watched when a test is carried out. The powder box has a horn shape, air flows through a small hole, powder is evenly scattered in the combustion chamber; the powder box is disposed in the transparent test box; one end of the tube passes through the transparent test box and is inserted into the powder box to be connected, and the other end of the tube is connected with the air bag to form a powder scattering device; a large hole is arranged at the central section of the wall of the transparent test box; a thin iron wire is doubled to pass through the rubber plug, absorbent cotton is wound at the front end of the thin iron wire to form a cotton ball, and the cotton ball absorbs alcohol to perform as a fire source and form an ignition device; and the problem that powder is not easy to ignite by a candle flame, which is easy to quench when air flows through, is solved, wherein the problem leads to test failure.
Description
Technical field
Dust explosion tester relates to a kind of chemical experiment teaching aid and learning aid, everybody chemical experiment apparatus of making of a kind of applicable student.In junior middle school chemistry the 7th unit < < burning and fire extinguishing > > problem, there is a dust explosion experiment.Owing to there is no tester, on textbook, can only draw an experiment schematic diagram, allow religion person oneself find material and test voluntarily, according to the method on teaching material, test, not only poor effect but also experiment success rate are low.
Background technology
Flour is combustible, adopts certain method, and dust is spread in air in large quantities, if lighted, can cause burning, in limited space, reaches explosion limits when dust combustion is violent, after lighting, at once blasts.Prompting on teaching material and experimental technique: cut off the top of sky metal can and little plastic bottle, and each makes a call to an aperture more smaller than proofed sleeve external diameter in the bottom side of metal can and little plastic bottle, connects device, in little plastic bottle, put into flour, lighted candle, covers tank with vinyl cover, after air-blowing, observes.Do this experiment, be difficult to find proper metal can, making is got up also cumbersome, is not easy metal can to cut off, cut flat whole, most of teacher is unwilling to spend the too many time to make tester, and with metal can, does this experiment and do not observe phenomenon that the inside occurs; As too heavy in vinyl cover, or covered tightly very much, be all not easy to be raised; Because candle flame is little, be not easy to light dust, the air-flow but easily being blasted extinguishes, and causes the failure of experiment.Through repetition test, I have been designed to a safe and environmentally friendly tester by this dust explosion tester, and success ratio reached absolutely, because tester main element is transparent, am convenient to the overall process that observation experiment occurs.
Summary of the invention
The utility model dust explosion tester, comprise experiment box, dust box, loose powder pad, conduit, air bag, rubber plug, alcohol, cotton balls etc., it is characterized in that: the transparent experiment box of tester main element, inside is tester firing chamber, by BOPP heat resistant plastic material, be made, bottom surface diameter is 120 ㎜, the cylindrical space of high 280 ㎜, good toughness transparency is high, during experiment, can allow situation while seeing the inner structure of auto levelizer and combustion explosion, student can see the overall process of flour ejection, burning, blast; Dust box is made as horn shape, near bottom, puts a narrow meshed loose powder pad, and air-flow, by aperture, can be sprinkling upon firing chamber equably by dust; In the bottom of transparent experiment box and dust box, open an aperture same large with conduit, dust box is placed in transparent experiment box, and conduit is inserted in dust box and coupled together through transparent experiment box, and the other end of conduit connects air bag, forms a dusting device; At the middle part of transparent experiment box wall, open a larger hole, size and the rubber plug in hole are onesize, an aperture is made a call to iron nail in the center of rubber plug, rubber plug will be passed after a thin wire doubling, the upper absorbent cotton of front end strand of thin wire becomes cotton balls shape, suck alcohol as burning things which may cause a fire disaster, form a portfire; Portfire is that a thin wire doubling twists together through rubber plug, the latter half of handle that is made into of thin wire, and the upper absorbent cotton of front end strand becomes cotton balls shape, and before experiment, cotton balls sucts alcohol as naked light burning things which may cause a fire disaster.Can solve candle flame little, be not easy to light dust, the air-flow but easily being blasted extinguishes, and causes the failure problem of experiment; Lid is closely buckled in transparent experiment box top.
Accompanying drawing explanation
Accompanying drawing 1 is the dust explosion experiment schematic diagram providing on teaching material; Accompanying drawing 2 is the utility model dust explosion tester schematic diagram of device.Press the sequence number in figure: 1. test box, 2. dust box, 3. loose powder pad, 4. conduit, 5. air bag, 6. rubber plug, 7. handle, 8. naked light, 9. lid.
Embodiment
Dust explosion tester, comprise experiment box, dust box, loose powder pad, conduit, air bag, rubber plug, handle, naked light, lid, it is characterized in that: experiment box (1) is transparent tester firing chamber, by BOPP heat resistant plastic material, be made, good toughness transparency is high, degree of viewing and admiring is good, bottom surface diameter is 120 ㎜, high 280 ㎜, enough large space is provided, situation when when experiment can allow student see the inner structure of auto levelizer and combustion explosion, student can see: flour is by the overall process of air-flow ejection, burning, blast.Dust box (2) is horn shape, near bottom, puts a narrow meshed loose powder pad, and air-flow, by aperture, can be sprinkling upon firing chamber equably by dust; In the bottom of transparent experiment box and dust box, open an aperture same large with conduit (4), dust box is placed in transparent experiment box, conduit is inserted in dust box and connected through transparent experiment box, and the other end of conduit connects air bag (5), forms a dusting device.On experiment box wall, open a slightly a little bigger hole, the size in hole is equally large with rubber plug (6), an aperture is made a call to iron nail in center at rubber plug, a thin wire doubling is twisted together through rubber plug, the latter half of handle (7) that is made into of thin wire, the upper absorbent cotton of front end strand becomes cotton balls shape, and before experiment, cotton balls sucts alcohol as naked light (8) burning things which may cause a fire disaster, forms a timely portfire; During experiment, at the fired outside alcohol of experiment box, light naked light, and fill in rapidly transparent experiment box, immediately by the pressuring gasbag air-blowing dust of kicking up, moment can see that the blast that very grand dust combustion blast produces raises lid (9), and one flame is gone out firing chamber.Solution candle flame is little, is not easy to light dust, and the air-flow but easily being blasted extinguishes, and is unlikely to again experiment box oxygen after-flame, causes the problems such as failure of experiment.
During experiment, get dry flour as in dust box, and lid is held on experiment box.Transfer to portfire, cotton balls soaked to upper alcohol, light cotton ball soaked in alcohol and fill in rapidly in transparent experiment box, immediately fast by pressuring gasbag from blasting air, the flour in dust box is kicked up, the time is short, flame is large, can not cause the failure of an experiment because of after-flame oxygen.Can be observed in the dust of kicking up, acutely burn and send flame in transparent experiment box, simultaneously with slight explosion sound, the blast of generation starts nearly 1 meter high by lid, and safety and environmental protection is more scared than hurt.
Claims (3)
1. dust explosion tester, comprise experiment box, dust box, loose powder pad, conduit, air bag, rubber plug, handle, naked light, lid, it is characterized in that: experiment box is transparent tester firing chamber, by BOPP heat resistant plastic material, be made, bottom surface diameter is 120 ㎜, the cylindrical space of high 280 ㎜.
2. dust explosion tester according to claim 1, is characterized in that dust box is horn shape, and a narrow meshed loose powder pad is put in bottom, and air-flow, by aperture, is sprinkling upon firing chamber equably by dust; In the bottom of transparent experiment box and dust box, open an aperture same large with conduit, conduit is inserted in dust box and connected through transparent experiment box, the other end of conduit connects air bag, forms a dusting device.
3. dust explosion tester according to claim 1, its feature also comprises portfire, and portfire is that a thin wire doubling twists together through rubber plug, the latter half of handle that is made into of thin wire, the upper absorbent cotton of front end strand becomes cotton balls shape, sucts alcohol as naked light burning things which may cause a fire disaster before experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320128180.2U CN203415151U (en) | 2013-03-20 | 2013-03-20 | Powder explosion tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320128180.2U CN203415151U (en) | 2013-03-20 | 2013-03-20 | Powder explosion tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415151U true CN203415151U (en) | 2014-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320128180.2U Expired - Fee Related CN203415151U (en) | 2013-03-20 | 2013-03-20 | Powder explosion tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415151U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778893A (en) * | 2015-04-22 | 2015-07-15 | 鹿寨县初级实验中学 | Dust explosion experimenting device |
| CN105738064A (en) * | 2014-12-11 | 2016-07-06 | 王显会 | Protection type vehicle bottom blast environment simulation device |
| CN108230863A (en) * | 2018-01-31 | 2018-06-29 | 孝感锐创机械科技有限公司 | A kind of remote control dust explosion simulation demonstrating apparatus |
| CN109147523A (en) * | 2018-09-26 | 2019-01-04 | 孝感锐创机械科技有限公司 | A kind of device of simulating dust explosion |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN109545053A (en) * | 2019-01-11 | 2019-03-29 | 蒋前进 | A kind of dust explosion demonstration device |
-
2013
- 2013-03-20 CN CN201320128180.2U patent/CN203415151U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738064A (en) * | 2014-12-11 | 2016-07-06 | 王显会 | Protection type vehicle bottom blast environment simulation device |
| CN104778893A (en) * | 2015-04-22 | 2015-07-15 | 鹿寨县初级实验中学 | Dust explosion experimenting device |
| CN108230863A (en) * | 2018-01-31 | 2018-06-29 | 孝感锐创机械科技有限公司 | A kind of remote control dust explosion simulation demonstrating apparatus |
| CN109147523A (en) * | 2018-09-26 | 2019-01-04 | 孝感锐创机械科技有限公司 | A kind of device of simulating dust explosion |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN109545053A (en) * | 2019-01-11 | 2019-03-29 | 蒋前进 | A kind of dust explosion demonstration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20150320 |
|
| EXPY | Termination of patent right or utility model |