CN101377379A - Coal ash drying device - Google Patents
Coal ash drying device Download PDFInfo
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- CN101377379A CN101377379A CN 200810051272 CN200810051272A CN101377379A CN 101377379 A CN101377379 A CN 101377379A CN 200810051272 CN200810051272 CN 200810051272 CN 200810051272 A CN200810051272 A CN 200810051272A CN 101377379 A CN101377379 A CN 101377379A
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- heat supply
- supply pipeline
- drying device
- supply pipe
- coal ash
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Abstract
The invention provides a fly ash drying device, which is characterized by comprising a revolving barrel type dryer communicated with a heat supply pipe, wherein, the hot flue gas inlet of the heat supply pipe is provided with an air shutter; the heat supply pipe is provided with a fan; the heat supply pipe of the air inlet of the fan is provided with a butterfly bamper; the feed pipe connected with the revolving barrel type dryer is provided with a draft fan; a cyclone separating device is arranged at the end of the feed pipe; the butterfly bamper is arranged at the feed pipe between the draft fan and the cyclone separating device; the heat supply pipe is connected with an auxiliary heating furnace; the hot flue gas inlet of the heat supply pipe is provided with a hot flue gas inlet temperature sensor and a smoke volume measurement device; the heat supply pipe is provided with a smoke volume sensor; a revolving barrel type dryer inlet temperature sensor is arranged at a hot flue gas inlet of a revolving barrel type dryer of the heat supply pipe, while the outlet of the revolving barrel type dryer of the feed pipe is provided with a revolving barrel type dryer outlet temperature sensor. The device of the invention has the advantages of reasonable structure, good drying effect, and energy-saving.
Description
Technical field
The present invention relates to drying device, specifically, is a kind of coal ash drying device, is mainly used in wet scrubber and removes the flyash that gets off or be stored in the drying that contains certain moisture flyash in the ash field, also can be applicable to the drying of other powdery object.
Background technology
Thermal power generation accounts for about 80% of gross generation greatly in China's power industry, and the annual emissions of flyash is more than 2.2 hundred million tons.Unemployed for many years flyash has reached more than 500,000,000 ton, takes up an area of more than 20 ten thousand mu, and ecological environment has been caused very big threat.China's utilization of fly ash technology and equipment are also relatively backward at present, and comprehensive utilization work is carried out also very uneven, stores and transport dry ash all than being easier in the total utilization of PCA process.In addition, some utilize the project technological requirement must use dry ash, and therefore, the demand of dry ash wants the specific humidity ash much bigger.How wet scrubber is removed the flyash that gets off or be stored in the utilization of fly ash that contains certain moisture in the ash field, turning waste into wealth is present utilization of fly ash problem demanding prompt solution, and the reported in literature and the application of coal ash drying device are not arranged in the prior art as yet.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of rational in infrastructure, and drying effect is good, the coal ash drying device of energy savings.
The technical scheme that solves its technical problem employing is, at specific technical problem to be solved, utilize existing heat drying equipment, cyclone separator, blower fan, device such as by-pass valve control and sensor organically combines and is a kind of coal ash drying device, it is characterized in that: it comprises revolver drier 24, the hot smoke inlet of revolver drier 24 is communicated with heat supply pipeline 26, the hot gas approach 28 of heat supply pipeline 26 is provided with air register 1, on heat supply pipeline 26, be equipped with air blast 13, on the heat supply pipeline 26 of air blast 13 air inlet front ends, be provided with butterfly valve 3, be equipped with air-introduced machine 20 on the feeding pipe 31 that the outlet of revolver drier 24 connects, end at feeding pipe 31 is equipped with cyclone separator 21, is equipped with butterfly valve 10 on the feeding pipe 31 between air-introduced machine 20 and the cyclone separator 21.On heat supply pipeline 26, be connected with auxiliary oven 12.Hot gas approach 28 1 ends at heat supply pipeline 26 are provided with hot gas approach temperature sensor 2 and cigarette measuring device 11.On heat supply pipeline 26, be provided with cigarette quantity sensor 4.Hot smoke inlet one end of revolver drier 24 is provided with revolver drier inlet temperature sensor 5 on heat supply pipeline 26.Outlet one end of revolver drier 24 is provided with revolver drier outlet temperature sensor 9 on feeding pipe 31.
The wound of coal ash drying device of the present invention is the beneficial effect that combination itself and combination itself bring by property:
Because main thermal source is to utilize the heat power plant boiler smoke discharging residual heat, when the boiler exhaust gas waste heat is not enough, again with the auxiliary oven of fire coal thermal source as a supplement, can more effectively utilize thermal source realize wet fly-ash through heat drying for being fit to the flyash of doing of comprehensive utilization, energy savings;
Again owing in coal ash drying device of the present invention, be provided with hot gas approach temperature sensor, cigarette measuring device, cigarette quantity sensor, revolver drier inlet temperature sensor and revolver drier outlet temperature sensor, can realize control automatically by the known control device that is connected with the sensor, drying effect is good;
Advantages such as coal ash drying device of the present invention also has rational in infrastructure, and is economic, as to be suitable for.
Description of drawings
Accompanying drawing is a coal ash drying device structural representation of the present invention.
Among the figure: 1 air register, 2 hot gas approach temperature sensors, 3,10 butterfly valves, 4 cigarette quantity sensors, 5 revolver drier inlet temperature sensors, 6,8 rollers, 7 driven sprockets, 9 revolver drier outlet temperature sensors, 11 cigarette measuring devices, 12 auxiliary ovens, 13 air blasts, 14 cylinder slope adjusting devices, 15,19 support rollers, 16 drive sprockets, 17 gearboxes, 18 motors, 20 air-introduced machines, 21 cyclone separators, 22 blanking ports, 23 charging apertures, 24 revolver driers, 26 thermal chimney roads, 27 gas outlets, 28 thermal chimney road imports, 29 rotating cylinders, 30 bearings, 31 feeding pipes.
The specific embodiment
The invention will be further described to utilize embodiment shown in the drawings below.
With reference to figure, coal ash drying device of the present invention has revolver drier 24, the hot smoke inlet of revolver drier 24 is communicated with heat supply pipeline 26, hot gas approach 28 places of heat supply pipeline 26 are provided with air register 1, on heat supply pipeline 26, be equipped with air blast 13, on the heat supply pipeline 26 of air blast 13 air inlet front ends, be provided with butterfly valve 3, be equipped with air-introduced machine 20 on the feeding pipe 31 that the outlet of revolver drier 24 connects, end at feeding pipe 31 is equipped with cyclone separator 21, is equipped with butterfly valve 10 on the feeding pipe 31 between air-introduced machine 20 and the cyclone separator 21.On heat supply pipeline 26, be connected with auxiliary oven 12.Hot gas approach 28 1 ends at heat supply pipeline 26 are provided with hot gas approach temperature sensor 2 and cigarette measuring device 11.On heat supply pipeline 26, be provided with cigarette quantity sensor 4.Hot smoke inlet one end of revolver drier 24 is provided with revolver drier inlet temperature sensor 5 on heat supply pipeline 26.Outlet one end of revolver drier 24 is provided with revolver drier outlet temperature sensor 9 on feeding pipe 31.Temperature sensor adopts thermocouple usually, and cigarette measuring device 11 adopts Pitot tube usually.
The air register 1 of coal ash drying device of the present invention, hot gas approach temperature sensor 2, butterfly valve 3,10, cigarette quantity sensor 4, revolver drier inlet temperature sensor 5, revolver drier outlet temperature sensor 9, roller 6,8, cigarette measuring device 11, auxiliary oven 12, air blast 13, cyclone separator 21 and revolver drier 24 are the commercially available prod.Revolver drier 24 comprises cylinder slope adjusting device 14, on cylinder slope adjusting device 14, be fixed with the bearing 30 of rotating cylinder 29, support roller 15,19, the gearbox 17 that motor 18 is connected with motor 18 axle heads, on rotating cylinder 29, be fixed with support roller 15 contacted rollers 6, with support roller 19 contacted rollers 8, be fixed with driven sprocket 7 on rotating cylinder 29, driven sprocket 7 is connected by the drive sprocket 16 of driving chain with gearbox 17 axle heads.
When the fine coal that uses coal ash drying device of the present invention to wet carries out drying operation, hot gas approach 28 ends of heat supply pipeline 26 are connected with boiler exhaust gas waste heat carrier pipe, the hot flue gas inlet of heat supply pipeline 26 is adjusted by air register 1, the main body of revolver drier 24 is the rotating cylinders 29 that slightly tilt, need dry wet fly-ash to add from charging aperture 23 tops of revolver drier 24, during through rotating cylinder 29 inside, the hot flue gas of heat supply pipeline 26 effectively contacts with wet fly-ash, flyash slowly rotates in rotating cylinder 29, under the gravity effect, move to low end from a higher end, be dried and send into cyclone separator 21 through feeding pipe 31 wet fly-ashes from the outlet of rotating cylinder 29 by air-introduced machine 20, separate and hot gas is discharged from the gas outlet 27 of cyclone separator 21 through cyclone separator 21, dry flyash is discharged from the blanking port 22 of cyclone separator 21 bottoms and is collected.Be provided with butterfly valve 3 on the heat supply pipeline 26 of air blast 13 air inlet front ends and on the feeding pipe 31 between air-introduced machine 20 and the cyclone separator 21, be equipped with butterfly valve 10 with control air quantity and adjusting blast.By adjusting rotating cylinder 29 dry rotating speeds, can control the time that material stops in rotating cylinder 29, the range of speeds of the rotating cylinder 29 of coal ash drying device of the present invention is: 1.0r/min～2.0r/min.The dry heat flue gas flow rate of coal ash drying device of the present invention is within 0.5～2.5m/s scope.Coal ash drying device of the present invention can be regulated according to flyash import water capacity and outlet water capacity.Its import water capacity can change between 10%～50%.The outlet water capacity is adjusted between 0.5%-1.0% as required.
The model machine of coal ash drying device of the present invention on probation through 10 months realized purpose of the present invention and reached rational in infrastructure that drying effect is good, the effect of energy savings.
Claims (6)
1. coal ash drying device, it is characterized in that: it comprises revolver drier (24), the hot smoke inlet of revolver drier (24) is communicated with heat supply pipeline (26), the hot gas approach (28) of heat supply pipeline (26) locates to be provided with air register (1), on heat supply pipeline (26), be equipped with air blast (13), on the heat supply pipeline (26) of air blast (13) air inlet front end, be provided with butterfly valve (3), be equipped with air-introduced machine (20) on the feeding pipe (31) that the outlet of revolver drier (24) connects, end at feeding pipe (31) is equipped with cyclone separator (21), is equipped with butterfly valve (10) on the feeding pipe (31) between air-introduced machine (20) and the cyclone separator (21).
2. coal ash drying device according to claim 1 is characterized in that: be connected with auxiliary oven (12) on described heat supply pipeline (26).
3. coal ash drying device according to claim 1 is characterized in that: hot gas approach (28) one ends at described heat supply pipeline (26) are provided with hot gas approach temperature sensor (2) and cigarette measuring device (11).
4. coal ash drying device according to claim 1 is characterized in that: be provided with cigarette quantity sensor (4) on described heat supply pipeline (26).
5. coal ash drying device according to claim 1 is characterized in that: hot smoke inlet one end of going up revolver drier (24) at described heat supply pipeline (26) is provided with revolver drier inlet temperature sensor (5).
6. coal ash drying device according to claim 1 is characterized in that: outlet one end of going up revolver drier (24) at described feeding pipe (31) is provided with revolver drier outlet temperature sensor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810051272 CN101377379A (en) | 2008-10-08 | 2008-10-08 | Coal ash drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810051272 CN101377379A (en) | 2008-10-08 | 2008-10-08 | Coal ash drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101377379A true CN101377379A (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810051272 Pending CN101377379A (en) | 2008-10-08 | 2008-10-08 | Coal ash drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101377379A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799240A (en) * | 2010-04-20 | 2010-08-11 | 攀钢集团钢铁钒钛股份有限公司 | Method for using waste heat flue gas from rotary hearth furnace |
| CN101986074A (en) * | 2010-11-22 | 2011-03-16 | 大唐鸡西热电有限责任公司 | Method for drying coal slime by hot wind and smoke of power station boiler |
| CN103017482A (en) * | 2011-09-27 | 2013-04-03 | 华强化工集团股份有限公司 | Drying recycling device for chemical industrial waste wet coal ash |
| CN103486832A (en) * | 2012-06-11 | 2014-01-01 | 四川制药制剂有限公司 | System for pulverizing and drying raw materials |
| CN103553391A (en) * | 2013-11-22 | 2014-02-05 | 黄石市建材节能设备总厂 | Joint production method for fluidization, calcination and decarburization-steam generation-drying of coal ash |
| WO2015000223A1 (en) * | 2013-07-04 | 2015-01-08 | 江苏瑞安特机械集团有限公司 | Combustion furnace |
| CN104833189A (en) * | 2015-04-29 | 2015-08-12 | 神华集团有限责任公司 | Gasification coal cinder drying equipment and system |
| CN107677063A (en) * | 2017-11-23 | 2018-02-09 | 黄石市建材节能设备总厂 | A kind of energy-saving safe clean moulded coal drying system |
| CN107702511A (en) * | 2017-11-23 | 2018-02-16 | 黄石市建材节能设备总厂 | Circulation clean moulded coal drying machine in a kind of |
| CN113776064A (en) * | 2021-08-31 | 2021-12-10 | 苏州西热节能环保技术有限公司 | Biochemical dregs of a decoction mummification and pulverized coal boiler coupling system of burning |
-
2008
- 2008-10-08 CN CN 200810051272 patent/CN101377379A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799240A (en) * | 2010-04-20 | 2010-08-11 | 攀钢集团钢铁钒钛股份有限公司 | Method for using waste heat flue gas from rotary hearth furnace |
| CN101986074A (en) * | 2010-11-22 | 2011-03-16 | 大唐鸡西热电有限责任公司 | Method for drying coal slime by hot wind and smoke of power station boiler |
| CN103017482A (en) * | 2011-09-27 | 2013-04-03 | 华强化工集团股份有限公司 | Drying recycling device for chemical industrial waste wet coal ash |
| CN103486832A (en) * | 2012-06-11 | 2014-01-01 | 四川制药制剂有限公司 | System for pulverizing and drying raw materials |
| WO2015000223A1 (en) * | 2013-07-04 | 2015-01-08 | 江苏瑞安特机械集团有限公司 | Combustion furnace |
| CN103553391B (en) * | 2013-11-22 | 2014-12-10 | 黄石市建材节能设备总厂 | Joint production method for fluidization, calcination and decarburization-steam generation-drying of coal ash |
| CN103553391A (en) * | 2013-11-22 | 2014-02-05 | 黄石市建材节能设备总厂 | Joint production method for fluidization, calcination and decarburization-steam generation-drying of coal ash |
| CN104833189A (en) * | 2015-04-29 | 2015-08-12 | 神华集团有限责任公司 | Gasification coal cinder drying equipment and system |
| CN107677063A (en) * | 2017-11-23 | 2018-02-09 | 黄石市建材节能设备总厂 | A kind of energy-saving safe clean moulded coal drying system |
| CN107702511A (en) * | 2017-11-23 | 2018-02-16 | 黄石市建材节能设备总厂 | Circulation clean moulded coal drying machine in a kind of |
| CN107702511B (en) * | 2017-11-23 | 2022-11-25 | 湖北金炉节能股份有限公司 | Clean moulded coal desiccator of inner loop |
| CN107677063B (en) * | 2017-11-23 | 2023-06-16 | 湖北金炉节能股份有限公司 | Safe energy-saving clean molded coal drying system |
| CN113776064A (en) * | 2021-08-31 | 2021-12-10 | 苏州西热节能环保技术有限公司 | Biochemical dregs of a decoction mummification and pulverized coal boiler coupling system of burning |
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Open date: 20090304 |