CN215570554U - Device for eliminating smoke dust of high-smoke solid fuel by aid of plasma flame combustion supporting - Google Patents
Device for eliminating smoke dust of high-smoke solid fuel by aid of plasma flame combustion supporting Download PDFInfo
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- CN215570554U CN215570554U CN202120891086.7U CN202120891086U CN215570554U CN 215570554 U CN215570554 U CN 215570554U CN 202120891086 U CN202120891086 U CN 202120891086U CN 215570554 U CN215570554 U CN 215570554U
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- smoke
- flame
- grate
- solid fuel
- plasma
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- 239000000779 smoke Substances 0.000 title claims abstract description 85
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 55
- 239000004449 solid propellant Substances 0.000 title claims abstract description 38
- 239000000428 dust Substances 0.000 title claims abstract description 33
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 239000002893 slag Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention belongs to the field of smoke dust purification, and particularly relates to a device for eliminating high-smoke solid fuel smoke dust by plasma flame combustion supporting, which is suitable for all combustion furnaces, particularly for the combustion furnaces using combustible garbage as fuel. Introducing plasma flame into the combustion furnace, igniting the high-smoke solid fuel which is slowly and continuously added by using the plasma flame, and completely burning smoke dust generated by the high-smoke solid fuel; the technical scheme has the advantages that firstly, dynamic feeding is continuously carried out, so that the space of the combustion chamber is greatly reduced, and the room temperature of the combustion chamber is conveniently and rapidly improved to completely combust smoke dust. Secondly, the invention adopts plasma flame to burn smoke dust, the temperature of the flame can reach about 8000 ℃, and the temperature is several times of the temperature of the common flame, so the smoke dust is more thoroughly burnt. Thirdly, the invention adopts the mode that the fire-equalizing grate is arranged at the opening of the chimney to block and intercept burning smoke dust, can stop the smoke dust of the 'leakage net', and has low energy consumption and high efficiency.
Description
Technical Field
The invention belongs to the field of smoke dust purification, and particularly relates to a device for eliminating high-smoke solid fuel smoke dust by plasma flame combustion supporting, which is suitable for all combustion furnaces, particularly for the combustion furnaces using combustible garbage as fuel.
Background
At present, the smoke dust purification mode of the combustion furnace has various modes, wherein secondary combustion is mainly used. The principle of the secondary combustion is that clean fuel is added into a secondary combustion chamber, and the overall temperature of the combustion chamber is improved as much as possible to burn off smoke and dust. However, to raise the temperature of a large space combustion chamber, a lot of clean fuel is required, which inevitably has the disadvantage of excessive cost, and moreover, the combustion value of the common clean fuel is limited, and the raising of the temperature of the combustion chamber is naturally limited, so the effect of eliminating smoke dust is also limited.
Disclosure of Invention
The invention is designed aiming at the defects of the prior combustion furnace for eliminating smoke dust. Plasma flame is introduced into the combustion furnace, and a flame equalizing grate is arranged at the position of a chimney opening, so that curtain-shaped flame is formed at the position of the plasma flame, and all the passing smoke dust is completely burnt.
The plasma flame is introduced into the combustion furnace, the slowly and continuously added high-smoke solid fuel is ignited by the plasma flame, and the smoke dust generated by the high-smoke solid fuel is burnt cleanly; the plasma flame consists of a plasma generator main body and a plasma spray head; the combustion furnace consists of a feed hopper, a grate, a chimney, a fire equalizing grate and a circulating liquid heat energy collecting device; the feeding port of the feeding hopper extends into the combustion chamber, the fire grate separates the combustion chamber from the slag chamber, the connecting part of the chimney and the furnace wall is a chimney port, the chimney port is provided with a fire equalizing grate which is flat, a plurality of vent holes are uniformly distributed on the fire equalizing grate, the outer diameter of the fire equalizing grate is equal to and matched with the caliber of the chimney port, the chimney port is covered by the plane of the fire equalizing grate, the upper end of the combustion chamber is provided with a furnace hearth internal circulation type liquid heat energy collecting device, and one section of the chimney close to the furnace wall is provided with a smoke pipe circulation type liquid heat energy collecting device; the high-smoke solid fuel slowly and continuously enters the combustion furnace through the feeding hole by the feeding hopper, the plasma generator main body is started to generate plasma flame, the high-smoke solid fuel is instantly ignited by the plasma flame, the front end of the plasma flame is blocked by the fire equalizing grate to form curtain-shaped flame, the chimney opening is completely covered by the curtain-shaped flame, smoke dust generated by the high-smoke solid fuel is intercepted and burnt completely by the curtain-shaped flame formed by the plasma flame, and the residual clean high-temperature gas enters the chimney from the vent hole of the fire equalizing grate and is discharged into the atmosphere.
The technical scheme has the advantages that firstly, dynamic feeding is continuously carried out, and the space of the combustion chamber is greatly reduced. In general, combustion-supporting fuel (plasma flame energy consumption) can be reduced by several times in the same space, or the combustion time can be increased by several times in the same combustion-supporting fuel quantity. Secondly, the invention adopts plasma flame to burn smoke dust, the temperature of the flame can reach about 8000 ℃, and the temperature is several times of the temperature of the common flame, so the smoke dust is more thoroughly burnt. Thirdly, the invention adopts the mode that the fire-equalizing grate is arranged at the opening of the chimney to block and intercept burning smoke dust, can stop the smoke dust of the 'leakage net', and has low energy consumption and high efficiency.
Drawings
FIG. 1 is a schematic diagram of a plasma flame combustion-supporting section principle for eliminating smoke dust of high-smoke solid fuel.
FIG. 2 is a schematic diagram of a section principle of combustion supporting of plasma flame and combustion supporting of common fuel introduced to eliminate smoke dust of high-smoke solid fuel.
Fig. 3 is a schematic plan view of the fire-equalizing grate.
FIG. 4 is a schematic view of a smoke tube circulating type liquid heat energy collecting device disposed near one end of a chimney port.
In the figure, 1, plasma flame, 2, a combustion furnace, 3, high-smoke solid fuel, 4, smoke, 5, a plasma generator main body, 6, a plasma spray head, 7, a hopper, 8, a fire grate, 9, a chimney, 10, a fire grate, 11, a circulating type liquid heat energy collecting device, 12, a feed inlet, 13, a slag chamber, 14, a furnace wall, 15, a chimney opening, 16, a vent hole, 17, a circulating type liquid heat energy collecting device in the furnace chamber, 18, a smoke pipe circulating type liquid heat energy collecting device, 19, curtain-shaped flame, 20, clean high-temperature gas, 21, a feed motor, 22, a feed valve, 23, a slag discharging motor, 24, a slag discharging connecting rod and 25 are common flame spray heads.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the figure, an automatic material control device is arranged at the feed inlet 12 of the feed hopper 7, and the automatic material control device main body is composed of a feed motor 21 and a feed valve 22 so as to control the high-smoke solid fuel 3 to be slowly and continuously added into a combustion chamber 27.
The grate 8 is provided with an automatic slag discharging device, the main body of the automatic slag discharging device consists of a slag discharging motor 23 and a slag discharging connecting rod 24, and ash is discharged into the slag chamber 13 in time through mechanical shaking or rotation of the slag discharging motor 23 and the slag discharging connecting rod 24 in a linkage manner so as to ensure a combustion chamber.
The other design is that two flame spray heads are provided, namely a plasma spray head 6 and a common flame spray head 25; the nozzle of the plasma nozzle 6 is opposite to the fire equalizing grate 10, and the nozzle of the common flame nozzle 25 is opposite to the high-smoke solid fuel 3 in the combustion chamber 27; the flame of the common flame nozzle 25 continuously ignites the high-smoke solid fuel 3 entering the combustion chamber 27, and the plasma flame 1 of the plasma nozzle 6 completely combusts the smoke 4 at the fire equalizing grate 10; the fuel used for conventional flame spray 25 is a generally combustible liquid or gas, referred to as a generally combustible fuel 26. The common combustible fuel 26 is not required to be clean fuel, and only needs to be combustible, and smoke dust is finally combusted by the plasma flame 1 through the fire equalizing grate 10, so that the smoke dust removing effect is not influenced by the smoke dust igniting fuel, and the cost is reduced.
In fig. 1, a plasma flame 1 is introduced into a combustion furnace 2, and a slowly and continuously added high-smoke solid fuel 3 is ignited by the plasma flame 1 and smoke 4 generated by the high-smoke solid fuel 3 is burnt; the plasma flame 1 consists of a plasma generator main body 5 and a plasma spray head 6; the combustion furnace 2 consists of a feed hopper 7, a grate 8, a chimney 9, a fire equalizing grate 10 and a circulating liquid heat energy collecting device 11; a feed inlet 12 of a feed hopper 7 extends into a combustion chamber 27, a fire grate 8 separates the combustion chamber 27 from a slag chamber 13, a chimney opening 15 is arranged at the joint of a chimney 9 and a furnace wall 14, a fire-equalizing grate 10 is arranged at the chimney opening 15, the fire-equalizing grate 10 is flat, a plurality of vent holes 16 are uniformly distributed on the fire-equalizing grate 10, the outer diameter of the fire-equalizing grate 10 is equal to and matched with the caliber of the chimney opening 15, the chimney opening 15 is covered by the plane of the fire-equalizing grate 10, a hearth internal circulation type liquid heat energy collecting device 17 is arranged at the upper end of the combustion chamber 27, and a section of the chimney 15 close to the furnace wall 14 is provided with a smoke pipe circulation type liquid heat energy collecting device 18; the high-smoke solid fuel 3 slowly and continuously enters the combustion furnace 2 through the feed inlet 12 from the feed hopper 7, the plasma generator main body 5 is started to generate plasma flame 1, the plasma flame 1 ignites the high-smoke solid fuel 3 instantly, the front end of the plasma flame 1 is blocked by the fire equalizing grate 10 to form curtain-shaped flame 19, the curtain-shaped flame 19 covers the chimney opening 15 completely, the smoke dust 4 generated by the high-smoke solid fuel 3 is intercepted and burnt completely by the curtain-shaped flame 19 formed by the plasma flame 1, and the residual clean high-temperature gas 20 enters the chimney 9 from the vent hole 16 of the fire equalizing grate 10 and is exhausted into the atmosphere.
In fig. 2, fig. 2 is substantially the same as fig. 1, except that in fig. 2, there are two flame spray heads, respectively, a plasma spray head 6 and a conventional flame spray head 25; the nozzle of the plasma nozzle 6 is opposite to the fire equalizing grate 10, and the nozzle of the common flame nozzle 25 is opposite to the high-smoke solid fuel 3 in the combustion chamber 27; the flame of the common flame nozzle 25 continuously ignites the high-smoke solid fuel 3 entering the combustion chamber 27, and the plasma flame 1 of the plasma nozzle 6 completely combusts the smoke 4 at the fire equalizing grate 10; the fuel used for conventional flame spray 25 is a generally combustible liquid or gas, referred to as a generally combustible fuel 26.
In fig. 3, fig. 3 is a schematic view of the grate 10. The fire-equalizing grate 10 is flat, a plurality of vent holes 16 are uniformly distributed on the fire-equalizing grate 10, the outer diameter of the fire-equalizing grate 10 is equal to and matched with the caliber of the chimney opening 15, and the chimney opening 15 is covered by the plane of the fire-equalizing grate 10. The grate 10 can be deformed, for example, by bundling tubular bodies, the outer circumference of which fits the chimney opening 15, and the hollow parts of the tubular bodies correspond to the ventilation holes 16.
In fig. 4, a section of the chimney 15 near the furnace wall 14 has a smoke-pipe circulating type liquid heat energy collecting device 18, and the smoke-pipe circulating type liquid heat energy collecting device 18 can be sleeved outside the chimney 15 or arranged in the chimney 15, but a passage for clean high-temperature gas 20 is reserved.
The feed hopper can be arranged at the top of the furnace or at the side surface of the furnace; the chimney can be arranged on the side of the furnace or on the top of the furnace.
The high-smoke solid fuel 3 mainly refers to but is not limited to combustible refuse fuel, preferably compression-molded refuse fuel, such as lump refuse fuel, strip-shaped straw-based fuel and the like, and mature technologies and products (currently used for supplying power plants) are on the market. The high-smoke solid fuel 3 also includes high-smoke low-grade coal and the like.
As the hearth internal circulation type liquid heat energy collecting device, the smoke tube circulation type liquid heat energy collecting device, the automatic feeding device and the automatic slag discharging device belong to the existing mature technologies, the detailed description is omitted here.
Claims (4)
1. A plasma flame combustion-supporting device for eliminating smoke dust of high-smoke solid fuel is characterized in that plasma flame (1) is introduced into a combustion furnace (2), the plasma flame (1) is used for igniting the high-smoke solid fuel (3) which is slowly and continuously added, and smoke dust (4) generated by the high-smoke solid fuel (3) is burnt completely; the plasma flame (1) consists of a plasma generator main body (5) and a plasma spray head (6); the combustion furnace (2) consists of a feed hopper (7), a grate (8), a chimney (9), a fire equalizing grate (10) and a circulating liquid heat energy collecting device (11); a feed inlet (12) of a feed hopper (7) extends into a combustion chamber (27), a fire grate (8) divides a combustion furnace (2) into the combustion chamber (27) and a slag chamber (13), a chimney opening (15) is arranged at the joint of a chimney (9) and a furnace wall (14), a fire-equalizing grate (10) is arranged at the chimney opening (15), the fire-equalizing grate (10) is flat, a plurality of vent holes (16) are uniformly distributed on the fire-equalizing grate (10), the outer diameter of the fire-equalizing grate (10) is equal to the caliber of the chimney opening (15) and is matched with the caliber of the chimney opening, the chimney opening (15) is covered by the plane of the fire-equalizing grate (10), a hearth internal circulation type liquid heat energy collecting device (17) is arranged at the upper end of the combustion chamber (27), and a smoke pipe circulation type liquid heat energy collecting device (18) is arranged at one section of the chimney (9) close to the furnace wall (14); the high-smoke solid fuel (3) slowly and continuously enters the combustion furnace (2) through the feed inlet (12) from the feed hopper (7), the plasma generator main body (5) is started to generate plasma flame (1), the plasma flame (1) instantly ignites the high-smoke solid fuel (3), the front end of the plasma flame (1) is blocked by the fire equalizing grate (10) to form curtain-shaped flame (19), the chimney opening (15) is completely covered by the curtain-shaped flame (19), smoke (4) generated by the high-smoke solid fuel (3) is intercepted and burnt cleanly by the curtain-shaped flame (19) formed by the plasma flame (1), and the residual clean high-temperature gas (20) enters the chimney (9) from the vent hole (16) of the fire equalizing grate (10) and is discharged into the atmosphere.
2. The device for removing the smoke and dust of the high-smoke solid fuel through the combustion supporting of the plasma flame as claimed in claim 1, wherein an automatic material control device is arranged at the feeding port (12) of the feeding hopper (7), and the automatic material control device main body is composed of a feeding motor (21) and a feeding valve (22) so as to control the high-smoke solid fuel (3) to be slowly and continuously fed into the combustion chamber (27).
3. The plasma flame combustion-supporting device for eliminating the smoke and dust of the high-smoke solid fuel according to claim 1, wherein the fire grate (8) is provided with an automatic slag discharging device, a main body of the automatic slag discharging device is composed of a slag discharging motor (23) and a slag discharging connecting rod (24), and ash is discharged into the slag chamber (13) through mechanical shaking or rotation of the slag discharging motor (23) and the slag discharging connecting rod (24) in a linkage manner.
4. The plasma flame combustion-supporting high-smoke solid fuel smoke elimination device as claimed in claim 1, wherein, the number of the flame spray heads is two, namely a plasma spray head (6) and a common flame spray head (25); the nozzle of the plasma nozzle (6) is over against the fire equalizing grate (10), and the nozzle of the common flame nozzle (25) is over against the high-smoke solid fuel (3) in the combustion chamber (27); the flame of the common flame nozzle (25) continuously ignites the high-smoke solid fuel (3) entering the combustion chamber (27), and the plasma flame (1) of the plasma nozzle (6) completely combusts the smoke (4) at the fire equalizing grate (10); the fuel used by the conventional flame spray head (25) is a conventional combustible liquid or gas, called a conventional combustible fuel (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120891086.7U CN215570554U (en) | 2021-04-23 | 2021-04-23 | Device for eliminating smoke dust of high-smoke solid fuel by aid of plasma flame combustion supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120891086.7U CN215570554U (en) | 2021-04-23 | 2021-04-23 | Device for eliminating smoke dust of high-smoke solid fuel by aid of plasma flame combustion supporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570554U true CN215570554U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120891086.7U Expired - Fee Related CN215570554U (en) | 2021-04-23 | 2021-04-23 | Device for eliminating smoke dust of high-smoke solid fuel by aid of plasma flame combustion supporting |
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| CN (1) | CN215570554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237076A (en) * | 2021-04-23 | 2021-08-10 | 姚志勇 | Method for eliminating smoke dust of high-smoke solid fuel by plasma flame combustion supporting |
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2021
- 2021-04-23 CN CN202120891086.7U patent/CN215570554U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237076A (en) * | 2021-04-23 | 2021-08-10 | 姚志勇 | Method for eliminating smoke dust of high-smoke solid fuel by plasma flame combustion supporting |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |