CN201875706U - Pulverized coal spray-burning mechanism - Google Patents
Pulverized coal spray-burning mechanism Download PDFInfo
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- CN201875706U CN201875706U CN2010206305142U CN201020630514U CN201875706U CN 201875706 U CN201875706 U CN 201875706U CN 2010206305142 U CN2010206305142 U CN 2010206305142U CN 201020630514 U CN201020630514 U CN 201020630514U CN 201875706 U CN201875706 U CN 201875706U
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- combustion chamber
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- burning
- heat energy
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Abstract
The utility model relates to a pulverized coal spray-burning mechanism, which comprises a combustion chamber. One end of the combustion chamber is provided with a heat energy release outlet, the combustion chamber is cylindrical and is connected with an air intake pipe and a coal spraying pipe along the tangential direction, the wall of the combustion chamber close to the outlet side of the coal spraying pipe is provided with an ignition port, the coal spraying pipe is sleeved in the air intake pipe, the end of the coal spraying pipe is connected with a collision type nozzle, the middle part of the wall of the combustion chamber on one side of the ignition port is provided with an ash removing observation port, the edge of the wall of the combustion chamber is provided with an ash removing port, and the wall of the combustion chamber under the heat energy release outlet is provided with an ash removing gap. The utility model overcomes the defects of the ordinary coal-fired furnace grate in the prior art such as serious resource waste and low economic efficiency as a result of coal leakage or incomplete coal burning, and also overcomes the defects of the water-coal-slurry spray-burning technology such as high slurry preparation and processing cost, low thermal efficiency and high combustion cost. With the structure, the pulverized coal spray-burning mechanism has the advantages of compact structure, complete pulverized coal combustion, high thermal efficiency and high reliability.
Description
Technical field
The utility model relates to a kind of fine coal torch firing mechanism.
Background technology
All coal-burning type boiler burner, annealing furnaces all are that fire coal is placed on the heat production of burning on fire grate or the grid in combustion process at present.Because fire grate and grate gap are bigger, defective such as the situation of leaking coal or not burnouting can appear in ut and bulk coal cinder, falls in the cinder and directly discharges, and causes the wasting of resources big, and economic benefit is low.Another is a water-coal-slurry torch firing technology, and this technology is coal dust to be pulverized add the entry mixing, adds catalyst again and stirs into the liquid pulpous state, compresses into spraying by liquid pump and burns.The defective that this technology is used is a slurrying processing cost height, and energy is taken away many by water, and the thermal efficiency descends, and burning cost height becomes the not energy-conservation effect of reduction of discharging.
The utility model content
The situation of leaking coal or not burnouting can occur in order to overcome common coal-burning fire grate in the prior art, cause the wasting of resources big, economic benefit is low; Water-coal-slurry torch firing technology slurrying processing cost height, the thermal efficiency are low, the high problem of burning cost, the utility model provides a kind of fine coal torch firing mechanism, the compact conformation of this fine coal torch firing mechanism, coal dust firing thoroughly, heat production efficient height, good reliability.
The technical scheme that its technical problem that solves the utility model adopts is: comprise the combustion chamber, combustion chamber one end is provided with heat energy and discharges outlet, the combustion chamber is a cylindrical shape, the combustion chamber is tangentially inserted blast pipe and is connected the coal powder injection pipe, set-point burner on the chamber wall that exports a side near the coal powder injection pipe.
The coal powder injection pipe tangentially inserts the combustion chamber.
The coal powder injection pipe box is connected in the blast pipe.
Be connected with the collision type nozzle in the end of coal powder injection pipe.
The chamber wall middle part of lighting-up tuyere one side is provided with the deashing observation panel, and the chamber wall limit is provided with cleaning door, and heat energy discharges and forms the deliming breach on the chamber wall that exports the below.
The utility model is by above-mentioned specific design, and coal dust and air intlet are that tangent line is pressed spray, become rotation at the combustion process natural type, have the following advantages: 1, solve the burning time-histories, have enough time and distance that fine coal is thoroughly burnt.2, remaining lime-ash has produced centrifugal force at the burning rotary course, and lime-ash comes off to breach when forwarding the deliming gap position to, separates with the flame thermal current, solves heat-exchange tube or other permutoid and easily ties the problem of grey fouling, increases heat transfer speed and efficient.3, the collision type nozzle produces collision by two pipe counterparts, and coal dust is scattered, and efficiently mixes with air, greatly improves efficiency of combustion.
Description of drawings
Below in conjunction with drawings and Examples detailed content of the present utility model is described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the AA cutaway view of Fig. 1.
Fig. 3 is a collision type structure of nozzle schematic diagram.
The specific embodiment
As shown in the figure, the utility model comprises combustion chamber 1, and combustion chamber 1 is by one high temperature resistant 2000
OThe pottery of C is made, and this material has the heatproof height, heat-resisting cold diminishing, and anti-wear performance is good, and the surface is difficult for bonding, the characteristics of long service life.Burner 1 outside can surround insulation by high temperature resistant asbestos, and the protection of shell impact resistance is arranged.Combustion chamber 1 one ends are provided with heat energy and discharge outlet 5, combustion chamber 1 is a cylindrical shape, combustion chamber 1 is tangentially inserted blast pipe 2 and is connected coal powder injection pipe 3, the best design of coal powder injection pipe 3 is to be socketed in also tangentially to insert combustion chamber 1 in the blast pipe 2, set-point burner 4 on combustion chamber 1 wall that exports a side near coal powder injection pipe 3, lighting-up tuyere 4 designs are at center, fine coal gas tangential inlet rotation place right angle, igniting can be adopted oils burner 10, closes automatically after oils burner 10 flames are lighted the fine coal admixture of gas.Be connected with collision type nozzle 6 in the end of coal powder injection pipe 3, the concrete structure of collision type nozzle 6 is that a pipe is divided into two pipe Y-shapeds earlier, synthetic again splayed configuration.Collision type nozzle 6 produces collision by two pipe counterparts, and coal dust is scattered, and efficiently mixes with air, greatly improves efficiency of combustion.The 1 wall middle part, combustion chamber of lighting-up tuyere 4 one sides is provided with deashing observation panel 7, and 1 wall limit, combustion chamber is provided with cleaning door 8, and heat energy discharges and forms deliming breach 9 on combustion chamber 1 wall that exports 5 belows.Deashing observation panel 7 can be observed on the one hand and form grey burnt state in fired state and the combustion chamber 1, can be in time burnt if any forming grey Jiao by ash in the logical ash rod of the cleaning door 8 usefulness cleaning combustion chamber 1, guarantee the long-term normal operation of fine coal torch firing mechanism.In working order down, earlier coal is pulverized by pulverizer, when pulverizing, the heat of stove afterbody discharging can be transported to pulverizer by heat energy counterflow exchange device with exchange heat part heat, by the pipeline fan supercharging coal dust wind is delivered to coal powder injection pipe 3 and collision type nozzle 6, form corner impact during 6 powder delivery of collision type nozzle, dusting forms the fan type.Collision type nozzle 6 ambient airs (or the counterflow exchange device exchanges the big portion pure qi (oxygen) heat of coming) are blown into combustion chamber 1 by blast pipe 2, mix with coal (heating), efficiently burn.Blast pipe 2 is designed to blow into combustion chamber 1 from tangential direction with collision type nozzle 6, become rotation at the combustion process natural type, be increased in burning time in the combustion chamber 1, combustion heat energy discharges and forms deliming breach 9 on combustion chamber 1 wall that exports 5 belows, the coal ash slag that the burning rotation had been burnt drops from deliming breach 9, separate with flame heat regulating, reduce the knot ash scale formation of heat-exchange tube or other permutoid, flame heat regulating is given thermal sensing system or is needed heat supply place.The utility model can be widely used in steam boiler, heat conducting oil boiler, hot-blast stove, smelting furnace, annealing furnace etc., and using on each stove and accessory all has good energy-conservation and efficient heat production effect.Above-described embodiment only is that the preferred implementation to the utility model fine coal torch firing mechanism is described; be not that design and scope to utility model limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of the utility model fine coal torch firing mechanism.
Claims (6)
1. fine coal torch firing mechanism, comprise the combustion chamber, combustion chamber one end is provided with heat energy and discharges outlet, it is characterized in that combustion chamber (1) is cylindrical shape, combustion chamber (1) is tangentially inserted blast pipe (2) and is connected coal powder injection pipe (3), set-point burner (4) on combustion chamber (1) wall that exports a side near coal powder injection pipe (3).
2. fine coal torch firing according to claim 1 mechanism is characterized in that coal powder injection pipe (3) tangentially inserts combustion chamber (1).
3. fine coal torch firing according to claim 2 mechanism is characterized in that coal powder injection pipe (3) is socketed in the blast pipe (2).
4. according to claim 1 or 2 or 3 described fine coal torch firing mechanisms, it is characterized in that being connected with collision type nozzle (6) in the end of coal powder injection pipe (3).
5. according to claim 1 or 2 or 3 described fine coal torch firing mechanisms, it is characterized in that deashing observation panel (7) being set at the combustion chamber (1) of lighting-up tuyere (4) one sides wall middle part, wall limit, combustion chamber (1) is provided with cleaning door (8), and heat energy discharges and forms deliming breach (9) on combustion chamber (1) wall that exports (5) below.
6. fine coal torch firing according to claim 4 mechanism, it is characterized in that deashing observation panel (7) being set at the combustion chamber (1) of lighting-up tuyere (4) one sides wall middle part, wall limit, combustion chamber (1) is provided with cleaning door (8), and heat energy discharges and forms deliming breach (9) on combustion chamber (1) wall that exports (5) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206305142U CN201875706U (en) | 2010-11-29 | 2010-11-29 | Pulverized coal spray-burning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206305142U CN201875706U (en) | 2010-11-29 | 2010-11-29 | Pulverized coal spray-burning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875706U true CN201875706U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206305142U Expired - Fee Related CN201875706U (en) | 2010-11-29 | 2010-11-29 | Pulverized coal spray-burning mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN201875706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012022A (en) * | 2010-11-29 | 2011-04-13 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN103672866A (en) * | 2013-11-25 | 2014-03-26 | 中国科学院过程工程研究所 | Device and method for preheating combustion of jetting pulverized coal used in iron-making process |
-
2010
- 2010-11-29 CN CN2010206305142U patent/CN201875706U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012022A (en) * | 2010-11-29 | 2011-04-13 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN102012022B (en) * | 2010-11-29 | 2012-11-14 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN103672866A (en) * | 2013-11-25 | 2014-03-26 | 中国科学院过程工程研究所 | Device and method for preheating combustion of jetting pulverized coal used in iron-making process |
| CN103672866B (en) * | 2013-11-25 | 2016-04-06 | 中国科学院过程工程研究所 | A kind of iron-smelting process coal injection furnace preheat burner and method |
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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: 20110622 Termination date: 20111129 |