CN1048087C - Spray type burning device - Google Patents
Spray type burning device Download PDFInfo
- Publication number
- CN1048087C CN1048087C CN 91108711 CN91108711A CN1048087C CN 1048087 C CN1048087 C CN 1048087C CN 91108711 CN91108711 CN 91108711 CN 91108711 A CN91108711 A CN 91108711A CN 1048087 C CN1048087 C CN 1048087C
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- CN
- China
- Prior art keywords
- fuel
- burning
- preheater
- burner
- heater
- 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
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Abstract
The present invention relates to a spray type burning device for burning meltable solid fuel. An internal circulation fluidized bed burner and a preheater are combined, the meltable solid fuel is melted by the heat energy of the burner, and the melted fuel crashes into a burning zone after being crushed through flow limiting holes at the bottom of the preheater, and carries out burning reaction after mixed with air. The burning air is introduced from a main spray port at the bottom of the burning chamber so that the fuel and the carrier of the fuel boil up and down and enters the burning region many times to enhance the completeness of the burning reaction. The present invention can inhibit the generation of NOx and SO2 in gas and prevent the liquid drips of the fuel from being coagulated by cold and coked on walls, and the present invention is especially suitable for burning meltable heavy hydrocarbon fuel.
Description
The burner of the present invention for using in a kind of burning that is applicable to meltability solid fuel and air or the similar chemical industry equipment.
The technical measures of heavy crude goods fuel (meltability solid fuel) such as burning residual oil that adopts and pitch prill mainly contain two kinds at present, a kind of is to make solid fuel molten for liquid by the external heat source heating, boost by petrolift then and be delivered to pressure type nozzle or the broken formula nozzle of gas, with the broken atomizing of liquid fuel, enter burner combustion.Its major defect is to need the external heat source preheating, and to petrolift and conveyance conduit insulation, expends pumping power and conveyance conduit and spraynozzle and stop up easily, pollutes more serious.Another kind of technical measures are solid fuel to be ground mixes the adding stabilizing agent with water or other liquid and make fuel paste.Transport to the broken formula nozzle of gas by the petrolift pressurization through pipeline at normal temperatures and carry out the fragmentation atomizing, in the combustion zone, burn.Its major defect is a slurrying cost height, expends pumping power, and the easily separated precipitation of fuel powder and solution causes the obstruction of pipeline and spraynozzle.
The object of the present invention is to provide a kind of burner that is used for the burning of meltability solid fuel, this device does not need petrolift and conveyance conduit, does not have the insulation problem, and is difficult for stopping up.
At the problem of prior art existence, the present invention adopts the top that preheater directly is loaded on burner, utilizes the heat energy preheating of burning self, enters the combustion chamber internal combustion after the aperture fragmentation of gravity current through being positioned at the preheater bottom of fuel dependence simultaneously self.Thereby saved petrolift and conveyance conduit, need not the insulation measure.
Accompanying drawing is a main structure chart of the present invention.
Now by reference to the accompanying drawings structure of the present invention and operation principle are introduced in detail.
The present invention the application of principle of ICFB burner in liquid fuel, burner Body of heater (6) adopted the ICFB burner structure. Upper at body of heater (6) Preheater (1) is installed by section, has uniform metering hole in the bottom of preheater (1) (11). Operation principle of the present invention is as follows: solid fuel directly is filled with fuel preheater (1) in. When the burner ignition start, use earlier other light oil burning, heating, make preheating Solid fuel in the device (1) progressively melts, and the metering hole of flowing through (11) enters body of heater (6) participate in burning in, gradually reduce then the supply of light Fuel until utilization can fully Heat energy after the fusibleness fuel combustion heats for preheater (1), and burner is transported fully voluntarily Turn to. In combustion process, meltability fuel can be subjected to the effect of self gravitation fully after preheating In metering hole (11) flowed into body of heater (6), the big I of fuel flow rate and drop was by limit How much controlling of the size in discharge orifice (11) aperture and number; Also can adopt simultaneously in advance The mode of pressurization enlarges adjustable range after hot device (1) sealing. Change exhaust opening (2) The coefficient of overall heat transmission that can fuel metering preheater (1) sucks of lengthwise position and melting after fuel Temperature and viscosity and surface tension, the liquid fuel after the fusing is broken through metering hole (11) Be broken into and drip after shape or strip enter body of heater (6), be subjected to by main air port (7) and blast cap (8) Enter the promotion of the combustion air in the burner hearth (6), up and down boiling fortune in body of heater (6) Moving and carry out combustion reaction, combustion product is discharged body of heater (6) by exhaust opening (2), by Whizzer (9) one ends directly enter atmosphere or mix rear benefit with auxiliary air Combustion, carrier can be entered in the body of heater (6) by the other end of whizzer (9) again. Instead Repeat again said process and both can improve completeness of combustion. The for the benefit of insulation of combustion zone and in follow The formation of circulation, body of heater (6) inwall adopt refractory material to make lower little big inversion garden Cone. For preventing that liquid fuel from adhering to the machine that wall is directed at minimizing and contact with air and reaction Meeting is the completing combustion of the heavy hydrocarbon fuel that guarantees the high viscosity macromolecule, and the present invention adopts Be used in the mode that adds circulating carrier in the burner hearth, make the liquid fuel that is difficult for completing combustion with carrying Body circulation Boiling Combustion, the contact area by increasing fuel and air, time of contact with mutually The factors such as movement velocity are improved its completeness of combustion. The cooling of spraying water earlier when burner is shut down Preheater and burner hearth, strengthen air output after flame-out until burner hearth when being down to normal temperature till.
Compare with traditional black oil oil firing stove, the present invention is simply compact, does not need extra auxiliary equipment, also needn't carry out any processing to fuel in advance.Do not have rotating mechanism in the system, do not have wearing terrain yet, so be difficult for breaking down.Because fuel is through preheating, air and fuel have long time of contact again, so be specially adapted to the less heavy fuel of fugitive constituent.Simultaneously owing to continued to use some low pollution technique measures that circulating fluid bed burning had, by reducing combustion zone temperature and adding measure such as calcium, improved the combustion environmental-friendly condition of heavy fuel, particularly reduce NOx and SO
2Pollution.
One embodiment of the present of invention structure is installed preheater (1) at the top of body of heater (6) as shown in drawings, and preheater (1) bottom has the metering hole (11) of 28 * Ф 2mm+5 * Ф 2.5mm.Preheater (1) is equipped with seal cover (12), go up setting pressure table (4) at seal cover (12), pressure-limiting safety valve (3) and Compressed Gas input pipe (5), compression can be adopted nitrogen or steam, body of heater (6) inwall adopts big 15 ° and falls cone for a short time down, furnace bottom diameter Ф 120mm, and (7) one of Ф 40mm main air ports are laid at the center, uniform on every side 10 * Ф 5mm blast cap (8) one circles charge into the carrier of the following fine sand of diameter Ф 1mm as molten fuel in the body of heater (6).Go up installation two peep holes (10) at body of heater (6), so that understand body of heater (6) internal combustion operating mode.
Claims (3)
1. the spray type burning device of the meltability solid fuel that is used to burn, the burner body of heater has adopted the ICFB burner, comprise that is used to melt the solid-fuelled preheater of meltability, it is characterized in that the fuel preheater (1) that will utilize the heat energy preheating melting solid fuel of burning self is arranged on the top of ICFB burner body of heater (6), the bottom of fuel preheater (1) has the size of uniform control fuel flow rate and drop and the metering hole (11) of number.
2. spray type burning device according to claim 1, it is characterized in that preheater (1) top seal cover be equipped with the pressurization blunt gas input pipe (5).
3. spray type burning device according to claim 1 is characterized in that being equipped with in the burner body of heater (6) the sandstone carrier that the participation fuel recycle is flowed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108711 CN1048087C (en) | 1991-09-09 | 1991-09-09 | Spray type burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108711 CN1048087C (en) | 1991-09-09 | 1991-09-09 | Spray type burning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1070465A CN1070465A (en) | 1993-03-31 |
| CN1048087C true CN1048087C (en) | 2000-01-05 |
Family
ID=4909430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108711 Expired - Fee Related CN1048087C (en) | 1991-09-09 | 1991-09-09 | Spray type burning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048087C (en) |
-
1991
- 1991-09-09 CN CN 91108711 patent/CN1048087C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1070465A (en) | 1993-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |