CN201462883U - Process device for spraying powdered fuels of kiln - Google Patents
Process device for spraying powdered fuels of kiln Download PDFInfo
- Publication number
- CN201462883U CN201462883U CN2009200648305U CN200920064830U CN201462883U CN 201462883 U CN201462883 U CN 201462883U CN 2009200648305 U CN2009200648305 U CN 2009200648305U CN 200920064830 U CN200920064830 U CN 200920064830U CN 201462883 U CN201462883 U CN 201462883U
- Authority
- CN
- China
- Prior art keywords
- kiln
- spray feed
- flapper
- nozzle
- spray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a process device for spraying powdered fuels of a kiln, comprising a spraying power blower, a pneumatic transmission pump which is arranged below a power cabin in front of a kiln and provided with an air lock flap and a set or a plurality of sets of nozzles arranged in the kiln, wherein an air outlet of the spraying power blower is connected to an air inlet end of the pneumatic transmission pump through a pipeline, and a discharge end of the pneumatic transmission pump is respectively communicated with each set of the nozzles through spraying pipelines. The process device for spraying powdered fuels of a kiln can meet the spraying requirement of coal powder or cokes and has simple and reliable structure, low investment, convenient popularization and application and obvious economic benefit.
Description
Technical field
The utility model relates to a kind of kiln process unit, specifically is a kind of kiln spray feed dusty fuel process unit.
Background technology
The original general employing oil of kiln (diesel oil, heavy oil), vapour (coal vapour, liquefied gas, natural gas) and water-coal-slurry (coal dust, coke blacking add water) are fuel.Its spray feed goes into kiln and combustion technology is simple and reliable, yet, these fuel price costlinesses, and no matter be difficult for storing (water-coal-slurry stores easily but slurrying is seriously polluted), be to reduce production costs from enterprise, still the angle of safety in production, not good process, (particularly medium-sized and small enterprises).
In that in the recent period fuel oil is in short supply, and under the fuel oil situation about significantly appreciating, too high fuel cost can't bear in enterprise.Therefore, the scheme that kiln is directly changed into spray feed coal dust or coke begins progressively carrying out.
But enterprise is in implementation process, often causes the scheme failure because of seeking the suitable spray feed process equipment of a cover, and it most typical problem occurs and is:
1. can't guarantee that the certain pressure material spray goes into stove;
2. it is inhomogeneous to go into kiln fuel, measures inaccurately, makes the length of flame in the kiln.Temperature control is inaccurate;
3. will guarantee the length of flame and control temperature accurately, need add a large amount of auxiliary equipment, as air compressor machine, vacuum tank etc., process system is complicated unusually, and the control level requires high.
Cause most of medium-sized and small enterprises will not adopt or implement failure by the problems referred to above because of its equipment manufacturing cost height, technical capability deficiency, system equipment operation and maintenance cost height.
The utility model content
At the defective that above-mentioned prior art exists, the utility model purpose aims to provide a kind of kiln spray feed dusty fuel process unit, can adapt to the spray feed requirement of coal dust or coke, and is simple and reliable for structure, invest low, easy to utilize, remarkable in economical benefits.
The technical scheme that the utility model is taked is, a kind of kiln spray feed dusty fuel process unit, comprise the spray feed driven fan, be installed on the band flapper under the filler bin of stokehold the strength delivery pump, be installed on one or more groups nozzle in the kiln, the air outlet of described spray feed driven fan is connected to the air intake of described strength delivery pump by pipeline, and the discharge end of this strength delivery pump is communicated with the feed end of each group nozzle respectively by the spray feed pipeline.
In the pipeline before the described nozzle expansion joint is installed.
Described spray feed driven fan is air compressor machine, roots blower or centrifugal blower.
The strength delivery pump of described band flapper includes flapper, and the last end entrance of described flapper is connected with the discharging opening of filler bin, and the lower end outlet of flapper connects the charging aperture of mixing chamber.
Blocked in order to prevent that flapper is in operation, described flapper is preferably the anti-sticking flapper, it comprises housing and its inner rotary blade that is provided with of band edge lid, rotary blade comprises a plurality of blades that are contained on the impeller shaft, and be provided with the impeller dististyle at the rotary blade two ends, the described impeller dististyle outside is provided with ash-scraper.
Described impeller dististyle is provided with discharging opening.Described end cap be provided with can external high-pressure air source pore.
Simultaneously, furnace flame is stable in order to make, the length of flame and the control of crossfire district are good, described nozzle is a swirl nozzle, comprise nozzle overcoat and streamlined conical nozzle plug, this streamlined conical nozzle plug is linked to be integral body by streamlined conical section and barrel portion, described streamlined conical nozzle plug is provided with the parallel spray orifice of a plurality of perforations along axis direction, the circumferential surface of described barrel portion is provided with the inclination spray groove that is 6 °～20 ° of angles with the axis of described barrel portion, and the inwall of described inclination spray groove and nozzle overcoat forms the inclination spray orifice.
Kiln spray feed dusty fuel process unit described in the utility model in utilization, coal dust of making by scratch system that meets the kiln internal combustion or the oil refining coke powder stokehold filler bin of packing at first.Start the spray feed driven fan, the compressed gas of generation is before pipeline is transported to the strength delivery pump of band flapper, and the strength delivery pump through being with flapper once is ejected into mixing chamber.Simultaneously forces to provide in by filler bin, in the mixing chamber of the strength delivery pump of band flapper, evenly mix with the air-flow that comes from the spray feed driven fan through the powder of flapper metering, even feeding, and before being transported to kiln along the further even mixing of spray feed pipeline.Spray into the kiln internal combustion with the mixed uniformly material of air-flow through nozzle.Gas is simultaneously combustion-supporting, and waste gas is drained through chimney, finishes whole process.
The advantage and the good effect of kiln spray feed dusty fuel process unit described in the utility model are:
1, to change coal dust be to meet the energy-saving and cost-reducing principles and policies of country to oil gas, and this process unit can make more medium-sized and small enterprises realize this goal, and reduces fuel cost greatly, makes enterprise more competitive.
2, this process unit can guarantee flame and temperature stabilization in the kiln fully, and regulates rapidly, and product quality is guaranteed.
3, have more security than original oil spout gas ejecting system.
Description of drawings
Fig. 1 is the structural representation of kiln spray feed dusty fuel process unit described in the utility model;
Fig. 2 is the structural representation of flapper in the described kiln spray feed of the embodiment dusty fuel process unit;
Fig. 3 is the structural representation of rotary blade in the described flapper of Fig. 2;
Fig. 4 is the scheme of installation of nozzle in the described kiln spray feed of the embodiment dusty fuel process unit.
In the drawings:
The strength delivery pump 3-flapper of 1-spray feed driven fan 2-band flapper
4-filler bin 5-spray feed pipeline 6-expansion joint 7-nozzle
8-mixing chamber 9-kiln 10-housing 11-rotary blade 12-blade
13-impeller dististyle 14-ash-scraper 15-discharging opening 16-end cap 17-pore
The streamlined conical nozzle plug of 18-nozzle overcoat 19-20-spray orifice 21-tilts to spray groove
The specific embodiment
Present embodiment provides a kind of kiln spray feed dusty fuel process unit, comprise spray feed driven fan 1, be installed on the band flapper under the stokehold filler bin 4 strength delivery pump 2, be installed on one or more groups nozzle 7 in the kiln, the air outlet of described spray feed driven fan 1 is connected to the air intake of described strength delivery pump 2 by pipeline, and the discharge end of this strength delivery pump 2 is communicated with the feed end of each group nozzle 7 respectively by spray feed pipeline 5.
In order to ensure the stability of pipeline, the appropriate location is established and is eliminated the expansion joint 6 that heat rises on spray feed pipeline 5.The blower fan model of above-mentioned spray feed driven fan 1 according to character, conveying capacity and the fed distance of convey materials, require flame degree, kiln size and character to determine, can be centrifugal blower, Roots blower or air compressor machine etc.
Described flapper is the anti-sticking flapper, the housing 10 and its inner rotary blade 11 that is provided with that comprise band edge lid 16, rotary blade 11 comprises a plurality of blades 12 that are contained on the impeller shaft, and be provided with impeller dististyle 13 at the rotary blade two ends, described impeller dististyle 13 outsides be provided with ash-scraper 14. described impeller dististyles 13 be provided with discharging opening 15. described end caps 16 be provided with can external high-pressure air source pore 17.
The strength delivery pump is in real-world operation, tiny goo is known from experience the gap that enters impeller dististyle 13 and end cap 16 easily, a small amount of material in bulk is discharged by the discharge opening 15 that is provided with on the impeller dististyle 13 earlier, material in the gap more for a long time, ash-scraper 14 on the impeller dististyle can be broken up the material in the gap, is convenient to discharge.The material that residue can't be discharged naturally then connects high-pressure air source with pore 17, makes high pressure gas air-blowing inwardly, and the leftover materials in the gap are gone out, and assurance equipment normally moves.
In order to make furnace flame stable, the length of flame and the control of crossfire district are good, described nozzle is a swirl nozzle, comprise nozzle overcoat 18 and streamlined conical nozzle plug 19, this streamlined conical nozzle plug 19 is linked to be integral body by streamlined conical section and barrel portion, the streamlined conical section of described streamlined conical nozzle plug 19 is in spray feed pipeline 5, barrel portion stretches in the kiln 9, described streamlined conical nozzle plug is provided with the parallel spray orifice 20 of a plurality of perforations along axis direction, the circumferential surface of described barrel portion is provided with the inclination spray groove 21 that is 6 °～20 ° of angles with the axis of described barrel portion, and described inclination spray groove 21 forms the inclination spray orifice with the inwall of nozzle overcoat 18.
Coal dust of making by scratch system that meets the kiln internal combustion or the oil refining coke powder stokehold filler bin 4 (the powder storehouse can be located within the distance of kiln 30～80m, also can be farther) of packing into.Start spray feed driven fan 1, the compressed gas of generation is before pipeline moves to the strength delivery pump 2 of band flapper, and the strength delivery pump 2 through being with flapper once is ejected into mixing chamber 8.Simultaneously force to provide in by filler bin 4 through the powder of 3 meterings of anti-sticking flapper, even feeding, in the mixing chamber 8 of strength delivery pump of band flapper, evenly mix with air-flow from spray feed driven fan 1, and before being transported to kiln along the further even mixing of spray feed pipeline 5.Spray into the kiln internal combustion with the mixed uniformly material of air-flow through ad hoc eddy flow nozzle 7.Gas is simultaneously combustion-supporting, and waste gas is drained through chimney, finishes whole process.
The inventory that sprays into can be calculated by air quantity, pressure and spray feed pipeline 5 bores to size, rotating speed and the spray feed driven fan 1 of flapper 3 to determine, guarantee the supply that requires.The length of flame, width can be determined by the design and the preceding pressure control of nozzle of swirl nozzle 7, thereby guarantee that parameters is normal in the stove.
Above-mentioned in kiln the device of spray feed dusty fuel can substitute former oil spout gas ejecting system fully, system compares with the existing pressurized tank powder injection process in market, cost greatly reduces, simple to operate, easy to adjust, production process is safe and reliable, has significant practical advanced.
Claims (8)
1. kiln spray feed dusty fuel process unit, it is characterized in that, it comprises the spray feed driven fan, is installed on the strength delivery pump of the band flapper under the filler bin of stokehold and is installed on one or more groups interior nozzle of kiln, the air outlet of described spray feed driven fan is connected to the air intake of described strength delivery pump by pipeline, and the discharge end of this strength delivery pump is communicated with the feed end of each group nozzle respectively by the spray feed pipeline.
2. according to the described kiln spray feed of claim 1 dusty fuel process unit, it is characterized in that in the preceding pipeline of described nozzle expansion joint being installed.
3. according to the described kiln spray feed of claim 1 dusty fuel process unit, it is characterized in that described spray feed driven fan is air compressor machine, roots blower or centrifugal blower.
4. according to the described kiln spray feed of claim 1 dusty fuel process unit, the strength delivery pump that it is characterized in that described band flapper includes flapper, the last end entrance of described flapper is connected with the discharging opening of filler bin, and the lower end outlet of flapper connects the charging aperture of mixing chamber.
5. according to the described kiln spray feed of claim 1 dusty fuel process unit, it is characterized in that described flapper is the anti-sticking flapper, it comprises housing and its inner rotary blade that is provided with of band edge lid, rotary blade comprises a plurality of blades that are contained on the impeller shaft, and be provided with the impeller dististyle at the rotary blade two ends, the described impeller dististyle outside is provided with ash-scraper.
6. according to the described kiln spray feed of claim 5 dusty fuel process unit, it is characterized in that described impeller dististyle is provided with discharging opening.
7. according to the described kiln spray feed of claim 5 dusty fuel process unit, it is characterized in that described end cap be provided with can external high-pressure air source pore.
8. according to the described kiln spray feed of one of claim 1-7 dusty fuel process unit, it is characterized in that described nozzle is a swirl nozzle, comprise nozzle overcoat and streamlined conical nozzle plug, this streamlined conical nozzle plug is linked to be integral body by streamlined conical section and barrel portion, described streamlined conical nozzle plug is provided with the parallel spray orifice of a plurality of perforations along axis direction, the circumferential surface of described barrel portion is provided with the inclination spray groove that is 6 °～20 ° of angles with the axis of described barrel portion, and the inwall of described inclination spray groove and nozzle overcoat forms the inclination spray orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200648305U CN201462883U (en) | 2009-06-17 | 2009-06-17 | Process device for spraying powdered fuels of kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200648305U CN201462883U (en) | 2009-06-17 | 2009-06-17 | Process device for spraying powdered fuels of kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462883U true CN201462883U (en) | 2010-05-12 |
Family
ID=42390235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200648305U Expired - Fee Related CN201462883U (en) | 2009-06-17 | 2009-06-17 | Process device for spraying powdered fuels of kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644933A (en) * | 2011-02-21 | 2012-08-22 | 中国铝业股份有限公司 | Powdered carbon raw material combustion process of carbon roasting furnace and rotary kiln |
| CN103466326A (en) * | 2013-08-26 | 2013-12-25 | 张家港保税区万盛机械工业有限公司 | Dilute-phase positive-pressure conveying device |
| CN106482142A (en) * | 2015-08-26 | 2017-03-08 | 新特能源股份有限公司 | A kind of coal additive feed arrangement and coal-burning boiler system |
-
2009
- 2009-06-17 CN CN2009200648305U patent/CN201462883U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644933A (en) * | 2011-02-21 | 2012-08-22 | 中国铝业股份有限公司 | Powdered carbon raw material combustion process of carbon roasting furnace and rotary kiln |
| CN103466326A (en) * | 2013-08-26 | 2013-12-25 | 张家港保税区万盛机械工业有限公司 | Dilute-phase positive-pressure conveying device |
| CN103466326B (en) * | 2013-08-26 | 2016-04-13 | 张家港保税区万盛机械工业有限公司 | Dilute phase positive-pressure conveying device |
| CN106482142A (en) * | 2015-08-26 | 2017-03-08 | 新特能源股份有限公司 | A kind of coal additive feed arrangement and coal-burning boiler system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202953463U (en) | Powder material conveyer | |
| CN201462883U (en) | Process device for spraying powdered fuels of kiln | |
| CN207065614U (en) | A kind of fuel delivery means for Production of Ceramics | |
| CN212100275U (en) | Power station boiler dual-fuel raw coal bunker system provided with pneumatic loosening device | |
| CN111392262A (en) | Power station boiler dual-fuel raw coal bunker system provided with pneumatic loosening device | |
| CN209688814U (en) | A kind of solid-state biomass fuel uses device | |
| CN103566751A (en) | Fluidized bed boiler desulfurization method and device | |
| CN110793054A (en) | Biomass fuel boiler blocks feeder of backflash | |
| KR100708997B1 (en) | Solid fuel feeding apparatus | |
| CN102040101A (en) | Petroleum coke powder combustion transporting device for improved industrial furnace | |
| CN205893051U (en) | Paper mill's sludge treatment system | |
| CN202594400U (en) | Pulverized coal conveying device | |
| CN201605009U (en) | Powder injection pump | |
| CN202322878U (en) | Tuyere-front airless mechanical conveying metering coal supplying device | |
| CN205442076U (en) | Sludge conveying system | |
| CN202179916U (en) | Dust-removing and ash-discharging system for coal moisture control | |
| CN205367131U (en) | Pipeline negative pressure feeding device | |
| CN204848779U (en) | Useless admittedly and useless feeding system of danger of living beings class | |
| CN213942653U (en) | Flue gas circulating fluidized bed method desulfurization equipment | |
| CN102654283B (en) | Cyclone combustion system for coal slag powder | |
| CN210994097U (en) | Wet-type biax helical blade stirring conveyer | |
| CN102311826A (en) | Substituted fuel and apparatus of carbon furnace | |
| CN209688877U (en) | A kind of biomass fuel vapour send device | |
| CN103162306A (en) | Coal powder long-range conveying and combustion system | |
| CN219991641U (en) | Blast furnace coal injection and pulverizing system with coal powder bin negative pressure device |
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: 20100512 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |