CN201448862U - Fuel feed system of ceramic kiln adopting dilute phase pneumatic conveying - Google Patents
Fuel feed system of ceramic kiln adopting dilute phase pneumatic conveying Download PDFInfo
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- CN201448862U CN201448862U CN2009200615833U CN200920061583U CN201448862U CN 201448862 U CN201448862 U CN 201448862U CN 2009200615833 U CN2009200615833 U CN 2009200615833U CN 200920061583 U CN200920061583 U CN 200920061583U CN 201448862 U CN201448862 U CN 201448862U
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Abstract
The utility model provides a fuel feed system of a ceramic kiln adopting dilute phase pneumatic conveying, which adopts solid power as fuel, and comprises a powder conveyer, a powder storage bin, a compressed gas storage tank, a powder blowing tank, a primary fluidization mixer, a secondary fluidization lower discharging type conveyer, a frequency conversion adjusting feeding machine, a cubic fluidization adjuster, a powder diverter and a solid powder combustor. The powder conveyer conveys solid powder fuel to the powder storage bin through a powder conveying pipeline, and conveys powder from the powder storage bin to the tapered part of the powder blowing tank through a blanking pipe; the powder and conveying gas medium are fluidified and mixed by the primary fluidization mixer at the tapered part for the first time, and by the secondary fluidization lower discharging type conveyer the second time; afterwards, the powder and the conveying gas medium enter the frequency conversion adjusting feeding machine, and is conveyed into the cubic fluidization adjuster uniformly and then to a powder fluidization diverter through a powder blowing pipe; the powder fluidization diverter is provided with a plurality of openings; and the powder is blown into the ceramic kiln through the solid powder combustor after being distributed uniformly for the openings.
Description
Technical field
Utility model relates to nonmetal industrial furnace technology, especially uses the ceramic stove fuel feed system of the employing dilute phase strength conveying of carbonaceous solids powder fuel such as coal or petroleum coke powder.
Background technology
Its fuel of the tunnel cave that present domestic ceramic industry is adopted, roller kilns is supplied with nothing more than following several: diesel oil or be Solid-liquid Mixed Fuel or natural gas or the producer gas or the coke-stove gas etc. of liquid phase with main oil plants such as heavy oil, because the converted products price of oil and coal is constantly soaring in recent years, makes the expense of above-mentioned fuel increase substantially in the ratio of firing in the cost of pottery.
The utility model content
Technical problem to be solved in the utility model is: a kind of ceramic stove fuel feed system of using the employing dilute phase strength conveying of carbonaceous solids powder fuel such as coal or petroleum coke powder is provided, under the prerequisite that does not change ceramic furnace kiln structures such as original tunnel cave, roller kilns, with solid powder fuel (as coal dust, petroleum coke powder etc.) directly spray in the kiln as the fuel of firing ceramics and burn, thereby improve the utilization rate of fuel significantly, the fuel saving cost is to reduce the ceramic sintering cost.Simultaneously, this fuel feed system also is applicable to be each class A furnace A of fuel with oil at present.
For achieving the above object, the utility model has adopted following technical scheme.
The ceramic stove fuel feed system that adopts the dilute phase strength to carry, be provided with defeated powder conveyer, fuel storage powder storehouse, compressed gas gas tank, powder winding-up jar, fluidisation blender, secondary fluidisation bottom discharge formula conveyer, variable frequency adjustment batcher, three fluidisation adjusters, powder current divider and solid powder burners.
Fail the powder conveyer and be connected through the top in duff pipe and fuel storage powder storehouse, the outlet that fuel is store bottom, powder storehouse is connected through tremie pipe and powder winding-up jar, and the bottom of powder winding-up jar is the tapering, and one time the fluidisation blender is located in the tapering; The bottom, tapering is connected with secondary fluidisation bottom discharge formula conveyer; The discharging opening of secondary fluidisation bottom discharge formula conveyer is connected with the charging aperture of variable frequency adjustment batcher, and the discharging opening of variable frequency adjustment batcher is connected with the charging aperture of three fluidisation adjusters, the discharging opening of three fluidisation adjusters is connected through the import of discharge tube with the powders flowing purification current divider, the powders flowing purification current divider has a plurality of outlets to be connected with ceramic stove by the solid powder burner, establish an arm on the solid powder burner and be connected respectively to the compressed gas gas tank, the compressed gas gas tank can be through solid powder burner input 3-40KG solid powder to ceramic stove from one kilogram of gas of the every ejection of solid powder burner; The compressed gas gas tank also is connected with three fluidisation adjusters with powder winding-up jar, fluidisation blender, a secondary fluidisation bottom discharge formula conveyer respectively through appendix.So-called dilute phase pneumatic conveying method is meant that per kilogram gas can carry the pneumatic conveying method of 3-40KG solid powder in the native system.
In the technique scheme, solid-fuelled powder adopts the dilute phase strength to jet jar to the solid powder burner from powder, successively will be through four step such as a fluidisation mixing, the conveying of secondary fluidisation, three fluidisation adjustings, four fluidisation shuntings mixing, suspension and fluidization treatment in various degree, powder is fully mixed with pumped (conveying) medium (compressed air or nitrogen), thereby the powder winding-up is continuous, stable, pulse free; According to the gas flow of fluidisation of the amount of dusting size adjustment, secondary fluidisation, three fluidisations, can guarantee fully that powder and air mixed proportion are adjustable; Powder is good in kiln internal combustion performance, the powder sufficient combustion, and can the meticulous adjusting amount of dusting. wherein, secondary fluidisation bottom discharge formula conveyer adopts bottom discharge formula fluidisation to carry, and has guaranteed that effectively powder is continuous, stability; Wherein, the variable frequency adjustment batcher is at the uniform velocity adjustable, guarantees that with this evenly reaching of amount of dusting is big or small; Wherein, the powders flowing purification current divider not only can at the uniform velocity be shunted powder, and fluidisation once more, has guaranteed that fully the fusion more of powder and air is even.
Preferable, the top in powder storage powder storehouse also is provided with deduster, and powder, is carried gas to filter by deduster and is discharged after powder is sent to by carrying gas to be transported to powder storage powder storehouse by defeated powder conveyer through pulverized coal feed pipe.
Preferable, a described powder winding-up jar tapering is built-in with three fluidisation blenders.
Preferable, described variable frequency adjustment batcher is made of variable-frequency motor and the screw delivery pump that axle connects transmission, the import of screw delivery pump is connected with the discharging opening of secondary fluidisation bottom discharge formula conveyer, and the helical feed delivery side of pump is connected with the charging aperture of three fluidisation adjusters.
Preferable, described three fluidisation adjusters have top charging aperture, bottom air inlet, anterior discharging opening, rear portion air inlet, and wherein the air inlet screw rod can free adjustment length.The top charging aperture links to each other with the outlet of variable frequency adjustment batcher, anterior discharging opening is connected with the powders flowing purification current divider, the bottom air inlet is connected with the compressed gas gas tank, the rear portion air inlet by one can free adjustment length the air inlet screw rod also be connected with the compressed gas gas tank, guaranteed that effectively powder mixes.
Preferable, described powder winding-up jar is equipped with LOAD CELLS.
Preferable, the outlet of described powders flowing purification current divider is connected with ceramic stove by a plurality of solid powder burners.
Major advantage of the present utility model is as follows:
Adopt per kilogram gas can carry the dilute phase pneumatic conveying method of 3-40KG solid powder, send (negative pressure) formula to combine with suction with force feed (malleation) formula, discharge pressure is low, pipe wear is little, energy-conserving and environment-protective, and winding-up is stable, powder is with air mixes, the sunken adjustable length of powder fire in powder sufficient combustion, each solid powder burner distributed uniform and the kiln, improves the utilization rate of fuel significantly, the fuel saving cost reduces the ceramic sintering cost greatly.
Description of drawings
Fig. 1 is a principle schematic of the present utility model.
Fig. 2 is the structural representation of secondary fluidisation bottom discharge formula conveyer of the present utility model.
Fig. 3 is the structural representation of three fluidisation adjusters of the present utility model.
Fig. 4 is the structural representation of variable frequency adjustment batcher of the present utility model.
Among the figure, 1-fails powder conveyer, 2-fuel storage powder storehouse, 3-deduster, 4-compressed gas gas tank, 5-powder winding-up jar, 6-LOAD CELLS, fluidisation blender of 7-, 8-secondary fluidisation bottom discharge formula conveyer, 9-variable frequency adjustment batcher, 91-variable-frequency motor, 92-screw delivery pump, three fluidisations of 10-are regulated utensil, 101-top charging aperture, 102-bottom air inlet, the anterior discharging opening of 103-, 104-rear portion air inlet, 105-air inlet screw rod, 11-powders flowing purification current divider, 12-solid powder burner, 13-pottery stove, 14-powder burner arm.
The specific embodiment
Below, in conjunction with specification drawings and specific embodiments the utility model is further described, but protection category of the present utility model is not limited thereto.
Arrive shown in Figure 4 as Fig. 1, the ceramic stove fuel feed system that adopts the dilute phase strength to carry, be provided with defeated powder conveyer 1, jars of 5, the one times fluidisation blenders 7 in fuel storage powder storehouse 2, compressed gas gas tank 4, powder winding-up, secondary fluidisation bottom discharge formula conveyer 8, variable frequency adjustment batcher 9, three fluidisation adjusters 10, powder current divider 11 and solid powder burners 12
Defeated powder conveyer 1 is connected through the top of duff pipe with fuel storage powder storehouse 2, and the outlet of fuel storage 2 bottoms, powder storehouse is connected with powder winding-up jar 5 through tremie pipe, and the jet bottom of jar 5 of powder is that 51, the fluidisation blenders 7 in tapering are located in the tapering 51; 51 bottoms, tapering are connected with secondary fluidisation bottom discharge formula conveyer 8; The discharging opening of secondary fluidisation bottom discharge formula conveyer 8 is connected with the charging aperture of variable frequency adjustment batcher 9, and the discharging opening of variable frequency adjustment batcher 9 is connected with the charging aperture of three fluidisation adjusters 10, the discharging opening of three fluidisation adjusters 10 is connected through the import of discharge tube with powders flowing purification current divider 11, powders flowing purification current divider 11 has a plurality of outlets to be connected with ceramic stove 13 by solid powder burner 12, establishes an arm 14 on the solid powder burner 12 and is connected respectively to compressed gas gas tank 4; Compressed gas gas tank 4 also is connected with three fluidisation adjusters 10 with powder winding-up jar 5, fluidisation blenders 7, secondary fluidisation bottom discharge formula conveyers 8 respectively through appendix.Thereby the method for carrying with the dilute phase strength directly sprays into nonmetal industrial furnace burning with the powder of solid carbon fuel.
Wherein, the top in powder storage powder storehouse 2 also is provided with deduster 3, and powder, is carried gas to filter by deduster 3 and discharged after powder is sent to by carrying gas to be transported to powder storage powder storehouse 2 by defeated powder conveyer 1 through pulverized coal feed pipe.
Wherein, described powder winding-up jar 5 taperings are built-in with three fluidisation blenders 7.
As shown in Figure 4, described variable frequency adjustment batcher 9 is made of with screw delivery pump 92 variable-frequency motor 91 that axle connects transmission, the import of screw delivery pump 92 is connected with the discharging opening of secondary fluidisation bottom discharge formula conveyer 8, and the outlet of screw delivery pump 92 is connected with the charging aperture of three fluidisation adjusters 10.
As shown in Figure 3, described three fluidisation adjusters 10 have top charging aperture 101, bottom air inlet 102, anterior discharging opening 103, rear portion air inlet 104, and wherein the air inlet screw rod can free adjustment length.Top charging aperture 101 links to each other with the outlet of variable frequency adjustment batcher 9, anterior discharging opening 103 is connected with powders flowing purification current divider 11, bottom air inlet 102 is connected with compressed gas gas tank 4, rear portion air inlet 104 by one can free adjustment length air inlet screw rod 105 also be connected with compressed gas gas tank 4, guaranteed that effectively powder mixes.
Wherein, described powder winding-up jar 5 is equipped with LOAD CELLS 6.
Wherein, the outlet of described powders flowing purification current divider 11 is connected with ceramic stove 13 by a plurality of solid powder burners 12.
Defeated powder conveyer 1 is transported to powder storage powder storehouse 2 with solid-fuelled powder through pulverized coal feed pipe under the effect of conveying gas, conveying gas is discharged by deduster 3 filtrations of Cang Ding. and the powder in the storage powder storehouse 3 arrives powder winding-up jar 5 by tremie pipe, after the fluidisation blender 7 of powder in the powder winding-up jars 5 by its tapering 51 makes powder and the preliminary fluidisation of conveying gas medium mixed, after mixing through secondary fluidisation bottom discharge formula conveyer 8 secondary fluidisations again, enter variable frequency adjustment batcher 9, at the uniform velocity be delivered to again in three fluidisation adjusters 10, be transported to powders flowing purification current divider 11 through discharge tube, powders flowing purification current divider 11 has some outlets, the powder uniform distribution to each outlet after solid powder burner 12 be sprayed onto in the ceramic stove 13. powder is from jars of 5 to three times fluidisation adjusters 10 of winding-up, belonging to positive-pressure type carries, powder is at the uniform velocity to carry in variable frequency adjustment batcher 10, and powder forms a region of no pressure in three fluidisation adjusters 10, send formula (negative pressure) formula mode to carry powder with suction to the powders flowing purification current divider 11. this methods of sending the conveying of formula (negative pressure) the dilute phase strength that formula combines with force feed (malleation) formula and suction, it is even to have guaranteed effectively that not only powder fuel is carried, stable, continuously, and can control to adjust the winding-up amount of the required powder of whole kiln flexibly. powder is meant the fuel of solid carbon, include but not limited to petroleum coke powder, coal dust, and the mixed powder of the two, the operation principle that above-mentioned powder is carried and the situation of powder are identical. owing to be built-in with three fluidisation blenders 7 in the powder winding-up jar 5, pumped (conveying) medium can tentatively be mixed with powder, become suspended state. the pumped (conveying) medium that enters secondary fluidisation conveyer 8 from its top, end around the diffuse metal web plate evenly enter, and 8 employings of secondary fluidisation conveyer is the bottom discharge form, this effectively guarantees the even mixed distribution of gas-solid biphase flow, as liquid, evenly flow out downwards then from eminence. it is even to have guaranteed that so dusty fuel is carried, stable, continuously. when powder during through three fluidisation adjusters 10, the pumped (conveying) medium that enters from the bottom air inlet of three fluidisation adjusters 10 carries out fluidisation for the third time to powder once more, this more effective the more even of dusty fuel conveying that guaranteed, stable more with continuously. the size of motor speed by regulating variable frequency adjustment batcher 1 and the pumped (conveying) medium throughput that enters from the anterior air inlet of three fluidisation adjusters, then play the size of the amount of dusting in the accurate adjusting unit interval. and the length of flame of solid powder burner 12 ejections is mainly regulated by the adjusting length of the air inlet screw rod of three fluidisation adjusters 10, also can finely tune the length of flame by the throughput size of regulating solid powder burner 12 arms 14.
This system adopts the storage powder storehouse and the powder winding-up jar of sealing; be transported to the injection system powder all the time airtight environment from powder; top, storehouse filter collector concentration of emission is less than 30mg/m3 on the storage powder storehouse; system can adopt nitrogen or compressed air spraying; do not have other pernicious gases in the production and enter in the atmosphere, environmental protection effect is good.
Claims (7)
1. adopt the ceramic stove fuel feed system of dilute phase strength conveying, it is characterized in that:
Be provided with defeated powder conveyer, fuel storage powder storehouse, compressed gas gas tank, powder winding-up jar, fluidisation blender, secondary fluidisation bottom discharge formula conveyer, variable frequency adjustment batcher, three fluidisation adjusters, powder current divider and solid powder burners; Fail the powder conveyer and be connected through the top in duff pipe and fuel storage powder storehouse, the outlet that fuel is store bottom, powder storehouse is connected through tremie pipe and powder winding-up jar, and the bottom of powder winding-up jar is the tapering, and one time the fluidisation blender is located in the tapering; The bottom, tapering is connected with secondary fluidisation bottom discharge formula conveyer; The discharging opening of secondary fluidisation bottom discharge formula conveyer is connected with the charging aperture of variable frequency adjustment batcher, and the discharging opening of variable frequency adjustment batcher is connected with the charging aperture of three fluidisation adjusters, the discharging opening of three fluidisation adjusters is connected through the import of discharge tube with the powders flowing purification current divider, the powders flowing purification current divider has a plurality of outlets to be connected with ceramic stove by the solid powder burner, establish an arm on the solid powder burner and be connected respectively to the compressed gas gas tank, the compressed gas gas tank can be through solid powder burner input 3-40KG solid powder to ceramic stove from one kilogram of gas of the every ejection of solid powder burner; The compressed gas gas tank also is connected with three fluidisation adjusters with powder winding-up jar, fluidisation blender, a secondary fluidisation bottom discharge formula conveyer respectively through appendix.
2. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried is characterized in that: the top in powder storage powder storehouse also is provided with deduster.
3. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried is characterized in that: a described powder winding-up jar tapering is built-in with three fluidisation blenders.
4. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried, it is characterized in that: described variable frequency adjustment batcher is made of variable-frequency motor and the screw delivery pump that axle connects transmission, the import of screw delivery pump is connected with the discharging opening of secondary fluidisation bottom discharge formula conveyer, and the helical feed delivery side of pump is connected with the charging aperture of three fluidisation adjusters.
5. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried, it is characterized in that: described three fluidisation adjusters have top charging aperture, bottom air inlet, anterior discharging opening, rear portion air inlet, the top charging aperture links to each other with the outlet of variable frequency adjustment batcher, anterior discharging opening is connected with the powders flowing purification current divider, the bottom air inlet is connected with the compressed gas gas tank, the rear portion air inlet by one can free adjustment length the air inlet screw rod also be connected with the compressed gas gas tank.
6. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried is characterized in that: described powder winding-up jar is equipped with LOAD CELLS.
7. the ceramic stove fuel feed system that employing dilute phase strength according to claim 1 is carried is characterized in that: the outlet of described powders flowing purification current divider is connected with ceramic stove by a plurality of solid powder burners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200615833U CN201448862U (en) | 2009-07-31 | 2009-07-31 | Fuel feed system of ceramic kiln adopting dilute phase pneumatic conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200615833U CN201448862U (en) | 2009-07-31 | 2009-07-31 | Fuel feed system of ceramic kiln adopting dilute phase pneumatic conveying |
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| CN201448862U true CN201448862U (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200615833U Expired - Fee Related CN201448862U (en) | 2009-07-31 | 2009-07-31 | Fuel feed system of ceramic kiln adopting dilute phase pneumatic conveying |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398395A (en) * | 2013-07-15 | 2013-11-20 | 湖南万通达燃气技术有限公司 | Method and system for ultra-dilute-phase pneumatic conveying of petroleum coke powdered solid fuel for combustion |
| CN103672947A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Dense-phase powder feeding and burning system for boiler |
| CN103994452A (en) * | 2014-05-30 | 2014-08-20 | 聊城华诚环保设备科技有限公司 | Coal additive conveying and spraying unit |
| CN104501202A (en) * | 2014-12-15 | 2015-04-08 | 江苏中圣园科技股份有限公司 | Method for quantitatively allocating pulverized coal for combustors of industrial furnace |
| CN108341226A (en) * | 2018-01-23 | 2018-07-31 | 太仓北新建材有限公司 | A kind of powder shunting device |
-
2009
- 2009-07-31 CN CN2009200615833U patent/CN201448862U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672947A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Dense-phase powder feeding and burning system for boiler |
| CN103398395A (en) * | 2013-07-15 | 2013-11-20 | 湖南万通达燃气技术有限公司 | Method and system for ultra-dilute-phase pneumatic conveying of petroleum coke powdered solid fuel for combustion |
| CN103398395B (en) * | 2013-07-15 | 2016-04-06 | 湖南万通达燃气技术有限公司 | The method and system of super dilute phase pneumatic conveying petroleum coke pulverized solid fuel combustion |
| CN103994452A (en) * | 2014-05-30 | 2014-08-20 | 聊城华诚环保设备科技有限公司 | Coal additive conveying and spraying unit |
| CN104501202A (en) * | 2014-12-15 | 2015-04-08 | 江苏中圣园科技股份有限公司 | Method for quantitatively allocating pulverized coal for combustors of industrial furnace |
| CN104501202B (en) * | 2014-12-15 | 2017-05-17 | 江苏中圣园科技股份有限公司 | Method for quantitatively allocating pulverized coal for combustors of industrial furnace |
| CN108341226A (en) * | 2018-01-23 | 2018-07-31 | 太仓北新建材有限公司 | A kind of powder shunting device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20170731 |