CN201278222Y - Explosion experiment apparatus for dust burning - Google Patents
Explosion experiment apparatus for dust burning Download PDFInfo
- Publication number
- CN201278222Y CN201278222Y CNU2008202004774U CN200820200477U CN201278222Y CN 201278222 Y CN201278222 Y CN 201278222Y CN U2008202004774 U CNU2008202004774 U CN U2008202004774U CN 200820200477 U CN200820200477 U CN 200820200477U CN 201278222 Y CN201278222 Y CN 201278222Y
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Abstract
The utility model discloses a dust combustion explosion experimental facility which comprises an explosion box body, an air compressor, a combustible dust container and a candle positioned nearby the container, wherein the combustible dust container and the candle are positioned on the bottom of the box body; the upper part of the explosion box body is provided with an intake pipe; the lower end of the intake pipe is also provided with a leakage explosion hole provided with a sealing plug; the left side and the right side of the explosion box body are respectively provided with an observation window which is sealed by an organic glass board and a rubber sealing pad; one side of the other sides of the explosion box body is provided with an operation hole which is sealed by a bolt. The facility has the advantages of simple structure, convenient operation, safety, obvious experimental phenomenon and high success ratio, and can observe continuous explosion phenomena. The facility can be also used in the fields of student experiments for safety engineering specialty in institutions of higher learning, enterprise safety education, industry safety training, and the like.
Description
Technical field
The utility model relates to the explosion test device, is specifically related to a kind of dust combustion explosion test device.
Background technology
The torpedo shell of existing apparatus is many to be converted by Coke bottle, pop can or irony milk powder jar, volume is very little, the candle of burning puts in and lacks oxygen afterwards because volume is little, be easy to extinguish, the dust of kicking up is because lacking oxygen also can't finely burn, and dust will carry out synchronously so igniting, sealing and air-blowing are kicked up, otherwise experiment just can not be successful, this just requires operator's action very fast, brings unusual inconvenience to operation.
The air of kicking up dust in the torpedo shell of existing apparatus and keeping burning is by ear washing bulb, syringe or blows good balloon in advance and provide, airshed is very little, can't replenish air from the torpedo shell outside continuously, oxygen in the torpedo shell seldom, also dust can't be blown afloat continuously, continuous explosion phenomenon can't be observed.
Existing apparatus torpedo shell volume is very little, and the airshed of feeding is also very little, so the power of blast is also very little, can not show the fearful scene of dust combustion blast.Existing apparatus so never consider the setting in venting of dust explosion hole, is unfavorable for teaching because the power of blast is very little.
Existing apparatus is from the bottom of torpedo shell or the side bubbling air, and this makes the structure of device show complicated slightly; And dust stops up draft tube, cleaning inconvenience easily.
The impermeability of more existing devices is very bad, causes having only the burning of dust and the phenomenon of not blasting; And some devices adopt the cover that compresses depression to seal, and operation neither be very convenient; The whole body of some devices is opaque, can't see the combustion explosion phenomenon of dust intuitively, can only judge that teaching efficiency is relatively poor by faint sound or the cylindrical shell that is started gently.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, a kind of dust combustion explosion test device is provided, can in the blast case of big volume, adopt the way of continuous mechanical air blast, not only can observe the combustion explosion phenomenon easily, and can show explosion phenomenon intuitively by the venting of dust explosion hole.The utility model is achieved through the following technical solutions.
A kind of dust combustion explosion test device comprises blast casing, air compressor, combustible dust container and is positioned at the other candle of this container that described combustible dust container and candle are positioned at bottom half; Described blast casing top is provided with draft tube, the lower end of draft tube is over against the combustible dust container, the draft tube upper end is connected with the air outlet of air compressor by pipeline, the top of blast casing also is provided with the venting of dust explosion hole, the venting of dust explosion pore area has sealing-plug, the blast casing each side be provided with watch window, described watch window is by poly (methyl methacrylate) plate and rubber gasket sealing, side in the other both sides of blast casing is provided with handle hole, and this handle hole uses bolt seal.
In the said apparatus, described view window is circular, and described rubber gasket passes through bolt between glass plate and the blast casing between glass plate and blast casing.Described venting of dust explosion hole is outstanding outside the blast casing, and described sealing-plug replaces with a balloon.Leave the gap between described draft tube lower end and the combustible dust container.Described casing is that steel plate materials is made.
In the said apparatus, described combustible dust container is the glass cylinder with breach, and breach is towards the candle position.
Compared with prior art, the utlity model has following advantage and beneficial effect: this device adopts air compressor air blast (100L/min), and airshed is big, and wind speed is steady and continuous, dust constantly can be blown afloat, and effect is fine; Because constantly from blast casing outside input air, thus can anoxic in the casing, thus make continuous blast become possibility.The blast tank-volumes is bigger, and the airshed of feeding is also bigger, so the power of blast is bigger, can show the fearful scene of dust combustion blast.By bursting of balloon on the venting of dust explosion hole or flying up of rubber plug, can show the process of dust explosion more intuitively, help teaching.This device is the top bubbling air from torpedo shell, and this makes the structure of device become very simple; Dust can not stop up draft tube yet.The blast casing is that steel plate is welded, and only leave draft tube, venting of dust explosion hole and handle hole and communicate with the external world, and handle hole adopts bolt seal, and is easy to use, good sealing effect.The blast casing each side has the view window (diameter 205mm) of a circle, and view window seals with organic glass.View window can allow exterior light enter box house according to seeing through organic glass, both has been convenient to operation, the combustion explosion situation that can observe box house again easily.
Description of drawings
Fig. 1 is the apparatus structure synoptic diagram in the utility model embodiment.
Embodiment
1 is air compressor among Fig. 1; The 2nd, flexible pipe, one end is connected the air outlet of air compressor, the one end draft tube 4 of ining succession, draft tube directly feeds cabinet interior from the top of blast casing, vertically face the cup 5 of splendid attire combustible dust, distance between rim of a cup and the draft tube can be regulated according to the experiment needs, if will reduce the distance between them, directly fills up wooden unit and get final product below cup; The 6th, candle is fixed on during experiment on the little plank; The 3rd, the blast casing, the left and right sides face of device respectively has the organic glass watch window 7 of a circle, and poly (methyl methacrylate) plate is fixing with bolt 8 with the blast tank wall, also has one deck rubber gasket between organic glass and blast tank wall, and purpose is to guarantee the impermeability of device; The 9th, the venting of dust explosion hole is gone up a balloon of cover or is used the rubber plug jam-pack during experiment; The 10th, handle hole is used bolt seal.
The blast casing is welded into rectangle by general steel plate, length is respectively 30cm, 30cm and 40cm, contained air capacity is more, be easy to be placed on reposefully on the experiment table top, the volume (36L) of blast casing is more much bigger than existing apparatus, and does not have the problem that causes candle to extinguish because of anoxic.The blast casing each side has the view window of a circle, view window seals with organic glass, bolt, post one deck rubber blanket between organic glass and the tank wall, guarantee impermeability, like this, both can provide exterior light to shine for the casing of sealing, be convenient to operation, can observe the combustion explosion situation in the casing again easily; The front of blast casing has a handle hole near the place of bottom, and the size of handle hole can free in and out with operating personnel's hand and be advisable, and the handle hole bolt seal is to guarantee its sealing; Feeder adopts the air compressor air blast, and air compressor links to each other with draft tube on the blast casing by a flexible pipe, air is directly blown in the cup that combustible dust is housed, the airshed of air compressor is bigger, wind speed is steady and continuous, dust constantly can be blown afloat, and effect is fine; Because constantly from blast casing outside input air, thus can anoxic in the casing, thus make continuous blast become possibility; The venting of dust explosion hole is left at blast casing top, connect a balloon during experiment on the venting of dust explosion hole or use the rubber plug jam-pack, explosion time gas enters balloon rapidly, make balloon expansion, moment bursts balloon or rubber plug is dashed and flies, thereby prevents the impact failure of impact generated by explosion ripple to experimental provision, protects experimental provision effectively, avoid the danger that brings to operating personnel because of blast impulse, increase the security of device; Next put balloon or beyond the Great Wall rubber plug can show the process of dust explosion more intuitively; The cup of splendid attire combustible dust leaves a breach in the direction facing to candle, and the effect of breach is that dust can be blown afloat well.
When experimentizing, pre-dry combustible dust is contained in the cup, cup is placed on below the draft tube of blast in the casing, make the air inlet mouth of pipe over against rim of a cup; The candle of lighting is fixed on the plank of next door, and candle over against the breach of cup, is not blown out the candle of lighting in order to avoid wind-force is too concentrated directly; In order to increase the intensity of burning things which may cause a fire disaster, prevent that candle from being gone out by wind, can on plank, disperse to place the candle of 2～3 differing heights; After aforesaid operations is finished, screw the sealing bolt of handle hole, start fan blower and just can experimentize, operation is very easy.Combustible dust is blown up with air and evenly mixes the back by the flame ignition of candle, and violent combustion explosion takes place then, and air-flow moment of generation makes balloon expansion, burst or rubber plug dashed and fly; In addition, can be clear that the impact of explosion time air-flow and the whole process that dust combustion explodes from watch window, very directly perceived lively.
Claims (6)
1, a kind of dust combustion explosion test device is characterized in that comprising blast casing, air compressor, combustible dust container and is positioned at the other candle of this container that described combustible dust container and candle are positioned at bottom half; Described blast casing top is provided with draft tube, the lower end of draft tube is over against the combustible dust container, the draft tube upper end is connected with the air outlet of air compressor by pipeline, the top of blast casing also is provided with the venting of dust explosion hole, the venting of dust explosion pore area has sealing-plug, the blast casing each side be provided with watch window, described watch window is by poly (methyl methacrylate) plate and rubber gasket sealing, side in the other both sides of blast casing is provided with handle hole, and this handle hole uses bolt seal.
2, dust combustion explosion test device according to claim 1 is characterized in that described view window for circular, and described rubber gasket passes through bolt between glass plate and the blast casing between glass plate and blast casing.
3, dust combustion explosion test device according to claim 1 is characterized in that described venting of dust explosion hole is outstanding outside the blast casing, and described sealing-plug replaces with a balloon.
4, dust combustion explosion test device according to claim 1 is characterized in that leaving the gap between described draft tube lower end and the combustible dust container.
5,, it is characterized in that described casing is that steel plate materials is made according to each described dust combustion explosion test device of claim 1～4.
6, dust combustion explosion test device according to claim 5 it is characterized in that described combustible dust container is the glass cylinder with breach, and breach is towards the candle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202004774U CN201278222Y (en) | 2008-09-12 | 2008-09-12 | Explosion experiment apparatus for dust burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202004774U CN201278222Y (en) | 2008-09-12 | 2008-09-12 | Explosion experiment apparatus for dust burning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278222Y true CN201278222Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202004774U Expired - Fee Related CN201278222Y (en) | 2008-09-12 | 2008-09-12 | Explosion experiment apparatus for dust burning |
Country Status (1)
| Country | Link |
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| CN (1) | CN201278222Y (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 |
| CN104794976A (en) * | 2015-04-24 | 2015-07-22 | 郭玉 | Battlefield environment simulating 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 |
| CN109751273A (en) * | 2019-01-09 | 2019-05-14 | 中煤科工集团重庆研究院有限公司 | Mine fan brakes simulation experiment method and device |
| CN112967587A (en) * | 2021-03-25 | 2021-06-15 | 中国人民警察大学 | Dust explosion and explosion suppression demonstration device and demonstration method thereof |
| CN114863778A (en) * | 2022-03-29 | 2022-08-05 | 西北核技术研究所 | Separated explosion simulation experiment device and implementation method thereof |
-
2008
- 2008-09-12 CN CNU2008202004774U patent/CN201278222Y/en not_active Expired - Fee Related
Cited By (14)
| 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 |
| CN104794976A (en) * | 2015-04-24 | 2015-07-22 | 郭玉 | Battlefield environment simulating device |
| CN104794976B (en) * | 2015-04-24 | 2017-11-14 | 安徽数驰机电设备制造有限公司 | A kind of analogue means of battlefield surroundings |
| CN110956887A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Dust explosion simulation equipment |
| CN110910746A (en) * | 2018-01-31 | 2020-03-24 | 孝感锐创机械科技有限公司 | Teaching aid for dust explosion |
| 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 |
| CN110956886A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Remote control demonstration equipment for dust explosion |
| CN110956888A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Teaching demonstration device for dust explosion |
| CN110956889A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Remote control's dust explosion simulator |
| CN109751273A (en) * | 2019-01-09 | 2019-05-14 | 中煤科工集团重庆研究院有限公司 | Mine fan brakes simulation experiment method and device |
| CN109751273B (en) * | 2019-01-09 | 2020-08-04 | 中煤科工集团重庆研究院有限公司 | Brake simulation test method and device for mine ventilator |
| CN112967587A (en) * | 2021-03-25 | 2021-06-15 | 中国人民警察大学 | Dust explosion and explosion suppression demonstration device and demonstration method thereof |
| CN114863778A (en) * | 2022-03-29 | 2022-08-05 | 西北核技术研究所 | Separated explosion simulation experiment device and implementation method thereof |
| CN114863778B (en) * | 2022-03-29 | 2023-12-15 | 西北核技术研究所 | Separated type chemical explosion simulation experiment device and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20120912 |