A kind of biomass gasifying furnace ash discharge slag device
Technical field
The invention belongs to solid-fuelled domestic burners or kitchen range, relate to a kind of ash discharge slag device of slag ash producing for getting rid of fuel thermal decomposition, particularly a kind of biomass gasifying furnace ash discharge slag device.
Background technology
At present to produce the terms of settlement of slag be that periodic cleaning is safeguarded to biomass gasifying furnace fuel thermal decomposition, and carbon discharges out of the furnace together with slag, and energy-saving index is exerted an influence.Therefore the device that needs a kind of automatic deslagging not arrange carbon solves this problem.For addressing this problem, in prior art, is no lack of the solution that has Similar Problems, as " biomass gasifying furnace closed slag-discharging device and biomass gasification reaction system " application number 201010528106.0 and " a kind of biomass gasifying furnace of being convenient to scarfing cinder " application number 200820076540.8, the former utilizes the propulsive force of screw-blade that the lime-ash falling is stably discharged; The reliable deadweight of lime-ash on the latter's fire grate is glided and falls voluntarily under fire grate along fire bars, and the lime-ash that can not certainly fall, by means of the whereabouts that pumps of moving grate, removes the gred effective.But due to the difference of its chamber structure and fuel-feed mode and combustion system, therefore, be difficult to be generalized to fuel-feed mode and be from bottom to up, combustion system is in biomass gasifying furnace from top to bottom.
Be directed to this, the present invention is devoted to solve biomass gasifying furnace ash discharge slag problem always, as mostly like this in the slag discharging device relating in " a kind of roasting kiln of Full automatic feed and burner hearth fuel charging device " CN201110072163.7 and " a kind of furnace head of biomass burning furnace " application number 201220030705.4, particularly " a kind of biomass gasifying furnace Slagoff method and device " CN201310301772.4, can allow ash fines end and slag enter annular passage by large sieve aperture and little sieve aperture by the vibration of vibratory screening apparatus, by tangential direction air blast, discharge from slag-drip opening, save complicated deslagging mechanism.Although these innovation and creation have solved part ash discharge slag problem, its technology also needs further Improvement and perfection, and as can be seen here, prior art scheme is also difficult to meet people's actual needs.
summary of the invention
The object of the invention is further to provide a kind of biomass gasifying furnace ash discharge slag device, by adopting rotating disc type ash exhauster to scrape lime-ash and ash discharge slag, take solve fuel-feed mode as from bottom to up, combustion system is as biomass gasifying furnace ash discharge slag problem from top to bottom.
The object of the invention technical scheme:
A kind of biomass gasifying furnace ash discharge slag device, it comprises burner hearth and feeding-passage, the surrounding of described burner hearth bottom and feeding-passage is provided with rotating disc type ash exhauster, described rotating disc type ash exhauster comprises ash discharge dish and rotating disk, in rotating disk, be provided with and scrape hawk, rotating disk is built in ash discharge dish and is rotationally connected, ash discharge dish top is provided with several ash-holes and is communicated with thorax in burner hearth by ash-hole, ash discharge dish below is provided with ash discharging hole and is connected with outer ash releasing tube by ash discharging hole, ash discharge dish one side is provided with follow-up pulley and rotating disk is in transmission connection, and follow-up pulley is connected with power wheel or power shaft.
Preferred:
In the burner hearth of described rotating disc type ash exhauster top, be provided with vibratory screening apparatus.
Described rotating disk is provided with exterior ring cap and inner ring sleeve, and exterior ring cap is connected by some spokes with inner ring sleeve, and described spoke is partly or entirely made as scrapes hawk, and described exterior ring cap is connected with follow-up pulley, and inner ring sleeve is connected or is rotationally connected with the outer wall running fit of feeding-passage.Further preferably: described exterior ring cap is that toothed disc or exterior ring cap are provided with toothed disc outward, and follow-up pulley is pinion(gear), and toothed disc is connected with pinion(gear) gear, pinion(gear) is arranged on a side in ash discharge dish dish, and pinion(gear) is externally connected with electric motor by the output shaft of electric motor.
In described outer ash releasing tube 19, be provided with ash discharge valve 13, the outlet of outer ash releasing tube 19 is connected with storage ash bin 12.
Described ash discharge dish 9 is built in burner hearth 3 inner bottom parts, the ash discharge plate composition ash discharge dish 9 that burner hearth 3 inner bottom surfaces and top are provided with, is evenly provided with several ash-holes, burner hearth 3 inner bottom part one side openings on ash discharge plate, be connected with follow-up pulley outer cover, follow-up pulley is built in follow-up pulley outer cover.
Or described ash discharge dish 9 positions are at burner hearth 3 inner bottom parts, burner hearth 3 inner bottom parts are provided with annular passage 16, the annular bottom plate of annular passage 16 and burner hearth 3 inner bottom surface composition ash discharge dishes 9, burner hearth 3 inner bottom part one side openings of annular bottom plate below, be connected with follow-up pulley outer cover, follow-up pulley is built in follow-up pulley outer cover, and the structure of ash-hole is designed to ash releasing tube 5, between the annular bottom plate of annular passage 16 and annular panel, be provided with interior ash releasing tube 5, between ash discharge dish 9 and the interior thorax of burner hearth 3, be communicated with by interior ash releasing tube 5.Further preferably: burner hearth 3 inwalls of described annular passage 16 tops are provided with vibratory screening apparatus 21, and vibratory screening apparatus 21 is connected with vibrator 17 by vibratory screening apparatus handle 18.The annular panel of described annular passage 16 is provided with airduct 22, and airduct 22 is divided into two kinds of height, and two kinds of airducts of height are evenly staggered, and one end of airduct 22 is connected with annular passage 16 by the annular panel of annular passage 16, and the other end stretches into burner hearth 3 inside.
The present invention adopts rotating disc type ash exhauster to scrape lime-ash and ash discharge slag, and lime-ash enters after ash discharge dish, by scraping hawk, boiler ash sediment is blown in outer ash releasing tube by ash discharging hole, then enters storage ash bin.In this ash discharge slag device, because longer airduct forms gap around through vibratory screening apparatus and with vibration sieve aperture, add lime-ash and be created in fuel bottom near airduct position around, so lime-ash is easy to enter in ash discharge dish by the effect of self gravitation and vibratory screening apparatus.In ash discharge dish, lime-ash is discharged by machinery and self gravitation effect, ash discharge dish and air duct sealing, and ash discharge slag process, can the burning of ash discharge slag limit, limit on the no impact of burning air quantity.Utilization is scraped hawk and is forced ash discharge slag, omnidistance sealing, and ash discharge slag better effects if, does not affect again burning.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the ash discharge turntable structure schematic diagram in the present invention.
Fig. 3 is the ash discharging hole structural representation in the present invention.
In figure: gas outlet 1, lighter for ignition 2, burner hearth 3, vibration sieve aperture 4, interior ash releasing tube 5, pinion(gear) 6, electric motor 7, toothed disc 8, ash discharge dish 9, scrapes hawk 10, feeding-passage 11, storage ash bin 12, ash discharge valve 13, air intake valve 14, blast pipe 15, annular passage 16, vibrator 17, vibratory screening apparatus handle 18, outer ash releasing tube 19, ash discharging hole 20, vibratory screening apparatus 21, airduct 22.
Embodiment
The present invention can specifically implement by the technical scheme in summary of the invention, and by the following examples can the invention will be further described, but scope of the present invention is not limited to following embodiment.
Embodiment 1:
In figure, ash discharge dish 9 positions of the present embodiment are at burner hearth 3 inner bottom parts, and burner hearth 3 inner bottom parts are provided with annular passage 16, the annular bottom plate of annular passage 16 and burner hearth 3 inner bottom surface composition ash discharge dishes 9.Burner hearth 3 inwalls of described annular passage 16 tops are provided with vibratory screening apparatus 21.
Gas outlet 1 is arranged on burner hearth 3 tops, lighter for ignition 2 is connected with burner hearth 3, interior ash releasing tube 5 two ends are connected to annular bottom plate and the annular panel of annular passage 16, interior thorax and the ash discharge dish 9 of burner hearth 3 are interpenetrated, the annular bottom plate of annular passage 16 and burner hearth 3 inner bottom surface composition ash discharge dish 9 ash discharge positions, burner hearth 3 inner bottom part one side openings of annular bottom plate below, be connected with gear outer cover, pinion(gear) 6 is built in gear outer cover, pinion(gear) 6 is arranged on the output shaft of electric motor 7 and is connected with toothed disc 8, electric motor 7 is connected with ash discharge dish 9 base plates, feeding-passage 11 is connected with ash discharge dish 9 and annular passage 16 respectively and stretches into burner hearth 3 bottoms, on the base plate of ash discharge dish 9, radially open a microscler ash discharging hole 20, on outer ash releasing tube 19 with ash discharging hole 20, be connected with ash discharge valve 13 and storage ash bin 12 down, blast pipe 15 is connected with air intake valve 14 and annular passage 16 respectively, vibratory screening apparatus handle 18 one end are connected with vibrator 17, the other end passes furnace wall and is connected with vibratory screening apparatus 21, airduct 22 is divided into two kinds of height, two kinds of airducts of height are evenly staggered, one end of airduct 22 is connected with annular passage 16 by the annular panel of annular passage 16, the other end stretches into burner hearth 3 inside.
Described rotating disk is provided with exterior ring cap toothed disc 8 and inner ring sleeve, and toothed disc 8 is connected by some spokes with inner ring sleeve, and spoke doubles as to be scraped hawk 10 and use, and described toothed disc 8 is connected with pinion(gear) 6, and inner ring sleeve is connected with the outer wall running fit of feeding-passage 11.
When use, fuel enters burner hearth 3 from feeding-passage 11, and when fuel reaches certain capacity, air intake valve 14 is opened, and ash discharge valve 13 is closed, and electric motor 7 cuts out, and vibrator 17 cuts out; By blast pipe 15, annular passage 16 and airduct 22, to burner hearth 3 air blast, lighter for ignition 2 is to fuel ignition; Airduct 22 is divided into two kinds of height, is uniformly distributed each other, higher stretches to burner hearth through vibratory screening apparatus, shorter below vibratory screening apparatus, and the wind that makes to enter burner hearth is more even, and the slag producing when burning distributes and more disperses, and is conducive to deslagging.In the time that vapourizing furnace enters normal operating conditions, close lighter for ignition 2, at this moment vapourizing furnace is in normal and continuous operation state.When vapourizing furnace work for some time, burner hearth 3 fuel bottoms can produce a certain amount of boiler ash sediment, can affect the normal work of vapourizing furnace, so, need be to vapourizing furnace timing ash discharge slag.When ash discharge slag, Vibration on Start-up device 17 and electric motor 7, open ash discharge valve 13, under the effect of slag self gravitation, slag enters vibratory screening apparatus 21 bottoms by vibration sieve aperture 4, enter ash discharge dish 9 by interior ash releasing tube 5 again, by scraping hawk 10, boiler ash sediment is blown in outer ash releasing tube 19 by ash discharging hole 20, boiler ash sediment enters storage ash bin 12 by outer ash releasing tube 19.Start by set date vibrator 17 and electric motor 7 so repeatedly, can make vapourizing furnace keep normal operating conditions.While closing fire, close ash discharge valve 13 and air intake valve 14.