CN202606146U - Plasma flow-crashing reaction device - Google Patents
Plasma flow-crashing reaction device Download PDFInfo
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- CN202606146U CN202606146U CN 201220147355 CN201220147355U CN202606146U CN 202606146 U CN202606146 U CN 202606146U CN 201220147355 CN201220147355 CN 201220147355 CN 201220147355 U CN201220147355 U CN 201220147355U CN 202606146 U CN202606146 U CN 202606146U
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- coal powder
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Abstract
The utility model relates to a plasma flow-crashing reaction device, in particular to a reaction device strengthening mixing and heat transferring after plasma high-temperature jet flow is utilized to heat, speed and crash with coal powder. The plasma flow-crashing reaction device comprises two or more than two sets of plasma torches (1) and a mixing device (3). The plasma torches (1) and the mixing device (3) are arranged on the outer wall of a reactor (2) in a coaxial mode along the opposite direction. When the plasma flow-crashing reaction device works, coal powder (6) is sent into the plasma high-temperature jet flow (5) with coal powder particles produced by the plasma torches through the mixing device (3), the coal powder after being heated and sped crashes with plasma jet flow (4) same as the coal powder in a center area of the reactor to form a flow-crashing turbulence area to strengthen mixing and heat transferring of the coal powder and the heat-temperature jet flow.
Description
Technical field
The utility model relates to a kind of plasma reaction device, relates in particular to a kind ofly to utilize the plasma high-temperature jet that coal dust is heated to quicken the back head-on collision, strengthen the plasma impinging stream reaction unit of its mixing and heat transfer.
Technical background
Coal plasma pyrolysis system acetylene technology is by plasma temperature is high, reactivity is good and coal and the approaching C/Hratio characteristic of acetylene, with coal dust directly spray into temperature at 3500 ℃ in degree high-temperature plasmas up to ten thousand; The explosion that coal dust is exceedingly fast discharges the fugitive constituent in producing coal, and adds that high-temperature plasma also generates a large amount of pyrolyzing hydrocarbon gas with the solid carbon effect together; Under several thousand degree high temperature, reach chemical balance very rapidly, forming with acetylene, hydrogen is master's cracking gas, and hot plasma Coal Pyrolysis system acetylene process is the course of reaction of under extreme conditions operating; Superhigh temperature and Millisecond time of contact, coal dust mixes with high-temperature plasma and conducts heat is the key point that realizes the coal dust reaction, and this reaction unit with regard to article on plasma body coal system acetylene is designed with a very high requirement; Usually coal in plasma system acetylene reaction device is a downstriker, and plasma torch is at top, is connecting blender and reactor successively below the plasma torch; Plasma torch produces plasma jet and sprays downwards; Coal dust is injected by blender and plasma jet vertical direction with certain speed, mixes with plasma and reacts, because the plasma jet rigidity is strong; Speed is high; Concentration of energy causes coal dust to mix with it and reacts comparatively difficulty, directly the influence efficient of reacting; After kind of unit scale enlarged, this phenomenon was particularly outstanding.In order to address this problem; We adopt the mode of impinging stream; The impinging stream notion is since being proposed by Elperin eighties of last century seventies, and two strands of its basic thoughts or a plurality of fluids flow and head-on collision in opposite directions, thereby produces the zone of a turbulence; Strengthen heat transfer, the transport phenomenon of claiming with it, and adopted the impinging stream notion in Chemical Manufacture such as the drying of material and mixing, to obtain effect preferably.
Summary of the invention
It is short that the purpose of the utility model is to solve coal dust time of staying in the plasma jet of high temperature; Pulverized coal particle can not get fully heating this problem; And then provide a kind of coal dust is sprayed in the plasma high-temperature jet that plasma torch produces, coal dust is by after the heating of plasma high-temperature jet and quickening, identical with it jets collision; Strengthen coal dust and mix with the high-temperature plasma jet and conduct heat, strengthen the device of coal dust reaction.
The solution that realizes above-mentioned purpose is:
A kind of plasma impinging stream reaction unit; Comprise plasmatorch, reactor, connector, powder inlet pipe, blender; By two groups or more plasma torch with blender is coaxial is installed in opposite directions on the reactor outer wall; And according to reactor assembly energy requirement situation, reactor head can be installed plasma torch or do not installed.
Described plasma impinging stream reaction unit, coal dust is sent into after plasma jet mixes by blender, spurts into jets collision identical with it in the reactor, forms impinging stream turbulence district in the reactor center zone, coal dust is fully mixed and heats.
Described plasma impinging stream reaction unit, the powder sending quantity of plasma torch power and blender is all identical, and is stable to guarantee the impinging stream turbulence district that produces in the reactor center zone.
Described plasma impinging stream reaction unit, reactor head plasma torch power is installed can be identical with plasma torch power on the reactor outer wall, also can difference, i.e. the material properties of power and institute's pyrolysis, quantity Matching.
Described plasma impinging stream reaction unit can be used for the cracking of plasma coal, also can be used for metal smelt, material modification, plasma spraying etc.
Advantage of the present invention and effect are:
1, utilizes impinging stream to strengthen coal dust and mix with high temperature fluid and conduct heat, significantly improved the reaction efficiency of coal dust.
2, adopt two or more sets to clash in opposite directions, avoided the bump of coal dust and wall and off-energy avoids high temperature fluid that wall is ablated, help prolonging energy utilization and equipment life.
3, adopt the reaction unit of impinging stream, can avoid owing to scale enlarges the enlarge-effect that produces, and simple and reliable for structure.
Description of drawings
Fig. 1 is the front view of the utility model embodiment 1.
Fig. 2 is the vertical view of figure the utility model embodiment 1.
Fig. 3 is the front view of the utility model embodiment 2.
Drawing reference numeral explanation: 1-plasmatorch 2-reactor 3-connector 4-powder inlet pipe 5-blender.
The specific embodiment
Referring to accompanying drawing 1 and accompanying drawing 2; Coaxial being installed on reactor 2 circumference in opposite directions of two groups of plasma torch 1, blender 5; The reaction unit that a plasma torch 1 is used to heat is also installed at reactor 2 tops; Coal dust is sprayed into the high temp jet that plasma torch produces by blender 5; Four strands of plasma high temp jets of carrying pulverized coal particle secretly by such clash each other, and the plasma jet that top plasmatorch 1 produces also bumps against with the high temp jet of carrying pulverized coal particle secretly, strengthen coal dust and mix with high-temperature plasma and conduct heat.
Embodiment 2
Referring to accompanying drawing 3, the embodiment 2 and embodiment 1 difference of this device are that plasmatorch is not installed at the top of reactor 2, and promptly reactor 2 tops do not produce plasma jet.
Embodiment 3
Embodiment 3 is to be uniformly distributed with three plasma torch 1, blender 5 at the conplane periphery of reactor 2 with the difference of embodiment 1,2.
Claims (2)
1. plasma impinging stream reaction unit; Comprise plasmatorch, reactor, connector, powder inlet pipe, blender; It is characterized in that by two groups or more plasma torch and blender; Coaxial being installed in opposite directions on the reactor outer wall, reactor head can be installed plasma torch or do not installed.
2. a kind of plasma impinging stream reaction unit according to claim 1, it is characterized in that installing reactor head plasma torch power can be identical with reactor outer wall plasma torch power, also can be different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147355 CN202606146U (en) | 2012-04-01 | 2012-04-01 | Plasma flow-crashing reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147355 CN202606146U (en) | 2012-04-01 | 2012-04-01 | Plasma flow-crashing reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606146U true CN202606146U (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220147355 Expired - Fee Related CN202606146U (en) | 2012-04-01 | 2012-04-01 | Plasma flow-crashing reaction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202606146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698677A (en) * | 2012-05-12 | 2012-10-03 | 新疆天业（集团）有限公司 | Plasma impinging stream reaction method |
| CN104451762A (en) * | 2014-12-17 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Device for preparing acetylene through pulverized coal pyrolysis by electric arc |
-
2012
- 2012-04-01 CN CN 201220147355 patent/CN202606146U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698677A (en) * | 2012-05-12 | 2012-10-03 | 新疆天业（集团）有限公司 | Plasma impinging stream reaction method |
| CN102698677B (en) * | 2012-05-12 | 2014-10-29 | 新疆天业（集团）有限公司 | Plasma impinging stream reaction method |
| CN104451762A (en) * | 2014-12-17 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Device for preparing acetylene through pulverized coal pyrolysis by electric arc |
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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: 20121219 Termination date: 20180401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |