A kind of fusing stove utilizing biomass fuel heating fusing aluminium ingot
Technical field
The present invention relates to the aluminum ingot melting furnace of a kind of continuous way heating, in particular by biomass fuel, there is heat radiation
Aluminum ingot melting furnace with Convective Heating mode.
Background technology
Existing aluminum ingot melting furnace kind is more, mainly has oil burner, gas furnace and fire coal for the fuel that it uses
Stoves etc., the mode of heating up generally includes: heat radiation heating is heated with thermal convection current, considers from the contribution of metal molten heat, and the latter is relatively
The former is much bigger, therefore, with regard to the structure of current smelting furnace, the high-end thermal convection current of stove up to part be to add hot charge and make
Its fusing position, bottom is then the position of storage alloy solution because account for the most convection of heat of heat transfer be prone to
On, and the liquid metal being in bottom can only maintain liquid by hot spoke heat, closes in bottom liquid usually as alloy melting furnace
Being provided with near the upper surface of gold and maintain alloy to keep liquid without the heating burner noz(zle) of solidification, this heating burner noz(zle) is
Main heating burner noz(zle), and the auxiliary combustion nozzle further enhancing heat is set at thermal convection current rising passway, this existing master
What combustion heating nozzle had again that the stove of auxiliary combustion heated nozzle uses is all oil burner or gas furnace, and reason is this two class
The combustion flame size of fuel is easily controlled so that liquid metal maintains and do not solidifies and the size of solid metallic persistently fusing amount
Aspect has a rational heat distribution, but, the green fuel Caulis et Folium Oryzae of employing relatively broad for current rural area or sorghum
For the biomass fuel that straw make, above-mentioned body of heater is just no longer appropriate for.In view of this, it is necessary to collateral security aluminium ingot adds heat fusing
Keep noncondensing angle to set out with fusing metal, design the furnace binding of a kind of novel aluminium ingot fusing, especially with biology
The aluminum ingot melting furnace of matter fuel, this problem is the most effectively solved at present.
Summary of the invention
The purpose of the present invention is that the above-mentioned deficiency for prior art, it is provided that one is applicable to biomass fuel heating
Aluminum ingot melting furnace.
It is an object of the invention to be achieved through the following technical solutions:
A kind of fusing stove utilizing biomass fuel heating fusing aluminium ingot, is made up of 4 regions, and 1st district is raw material heating
Part, comprises furnace charge and supports fire grate (4), charging aperture and receiving furnace charge burner hearth, and 2nd district are furnace bottom melting tank part, including melting
Changing stove burner hearth (1), radiant heat reflecting plate (2) and convection of heat computer heating control door (3), 3rd district are combustor section, including flame export
Controlling door (5), combustion chamber stove grate (6), plate (7), sidewall burning oxygen supply air-line system (11) are dredged in fuel extruding, and fire grate burns
Oxygen supply air-line system (12), 4th district are part of the fuel supply, and including turning box-shaped fire grate (8), fuel filler bucket (9), fuel pushes away
Entering system (10), box-shaped fire grate preheating air-line system (13), general characteristic is, the arrangement in 4 regions is L-shaped, and 1st district is in L-shaped
The highest part of structure, the radiant heat reflecting plate (2) in 2nd district, Convective Heating controls door (3) and hearth of melting furnace (1) under 1st district
Layer, i.e. the lower half of L vertical portion, 3 district's furnace charge flame exports control door (5), combustion chamber stove grate (6), and fuel extruding is dredged
Plate (7), burning oxygen supply airduct system (11,12), one end docks with 2nd district, the other end and 4 district's fuel turning box-shaped fire grate (8), fires
Material powder funnel (9), fuel propulsive systems (10), box-shaped fire grate preheating air-line system (13) constitutes a combustor body of heater.
Beneficial effect:
Arranging radiant heat reflecting plate (2) for 2 district's hearth of melting furnace (1) tops can be by 3 area combustion flame export
Radiant heat is reflected back in hearth of melting furnace (1), and this wants than radiant heat acquired in the case of radiationless heat reflection plate (2)
Many, the folding of convection of heat computer heating control door (3) both can control the number that 1st district is heated by convection heat, again can be at the bottom of with holding furnace
The temperature height change of portion's hearth of melting furnace (1), flame export controls the folding of door (5) and can realize with 1st district, 2nd district are supplied overabundant heat
Few control, and the extruding of the fuel on 4 tops, district is dredged plate (7) and biomass fuel loose for density can be produced extruding, to increase
Adding the density of feeding fuel, turning box-shaped fire grate (8) flattens the bottom of part of the fuel supply, Shi Shi 4 district and keeps complete, upset
Just can dry by carrying out horizontal after setting, i.e. play as fuel preheating, the effect of burning oxygen supply, the most again spray of raising flame combustion chamber
Fire intensity, the stove wall under radiant heat reflecting plate (2), to bottom angled, so can be more beneficial for adding of liquid metal
Heat and insulation, combustion chamber stove grate (7) is divided into 2 sections, and 2 sections of fire grate gap densitys are different, and burning just splaying is the thinnest, favorably
In the ventilation of macro particles fuel with combustion-supporting, taper at burning tip fuel particle, the fire grate that density arrangement is closeer
Keep ventilating and ensure that the loss that smaller particle fuel will not be too early.
The aluminum ingot melting furnace composition of this biomass fuel heating is simple, has good construction and system integration feature, it is easy to
Debugging, O&M, have good promotional value in the industry.
Accompanying drawing illustrates:
Fig. 1 is a kind of fusing stove cross-section front view utilizing biomass fuel heating fusing aluminium ingot.(1) for fusing stove stove
Thorax, (2) are radiant heat reflecting plate, and (3) are convection of heat computer heating control door, and (4) are that furnace charge supports fire grate, and (5) are flame export
Controlling door, (6) are combustion chamber stove grate, and (7) are that plate is dredged in fuel extruding, and (8) are turning box-shaped fire grate, and (9) are that fuel is filled out
Hopper, (10) are fuel propulsive systems.
Fig. 2 is a kind of fusing stove cross sectional plan view utilizing biomass fuel heating fusing aluminium ingot.(11) it is sidewall burning
Oxygen supply airduct system, (12) are fire grate burning oxygen supply airduct system, and (13) are that box-shaped fire grate preheats air-line system.
Detailed description of the invention:
The present invention is described in further detail below in conjunction with the accompanying drawings:
Install: stove overall structure is L-shaped, 1st district be raw material heating part and 2nd district be furnace bottom melting tank part be upper and lower
The structural relation of superposition, constitutes the vertical portion of L-shaped, and the major function in 1st district is to accommodate alloy raw material and absorb adding of convection of heat
Temperature, the hearth of melting furnace (1) in 2nd district accommodates fusing fluid alloy, and radiant heat reflecting plate (2) is then to utilize radiant heat to play fusing
The effect that stove burner hearth (1) heats, convection of heat computer heating control door (3) be can opening-closing structure, control 1,2 districts temperature height, 2nd district
The other end and 3 area combustion parts couple, and it is opening-closing structure that flame export controls door (5), the heating in 1,2 districts can be implemented control
System, the density of bottom combustion chamber fire grate (6) fire grate spacing is divided into 2 sections, and feed zone (initiation combustion section) is dredged, crater section
(after burning section) is closeer, and feed zone top is provided with fuel extruding and dredges plate (7), the biomass fuel pressure coming in loose by propelling movement
Real, sidewall burning oxygen supply air-line system (11) then plays combustion-supporting effect with fire grate burning oxygen supply air-line system (12), and 4th district are that fuel supplies
To part, including turning box-shaped fire grate (8), fuel filler bucket (9), fuel propulsive systems (10), box-shaped fire grate preheating airduct
System (13) constitutes the polycrystalline substance of L-shaped with the continued access of 3rd district.
Adjust: the radiant heat reflecting plate (2) in 2nd district faces the flame export of 3 area combustions, and attitude leans forward, horizontal plane
On the basis of forward leaning angle be approximately kept at 30 ° ~ 45 °, the sidewall of 2 row's combustor middle parts burning oxygen supply air-line system (11) water
A flat line arrangement, its height must higher than the piling height of fuel, spout axis can downward-sloping while go out to flame again
Mouth direction tilts, but will be based on the latter, and fuel extruding is dredged the length of plate (7) and visited combustor top for airduct with front end
(16) bottom is appropriate, angle about 45 °, produces and hinder during for preventing fuel from advancing, the combustion chamber stove grate of two-period form
(6), turning box-shaped fire grate (8) from front to back, upper plane in height the most slightly higher than to adjoin the former.
Run: the combustion flame of the combustor in 3rd district by flame export to 2 district's hearth of melting furnaces (1) transmission radiant heat with
Convection of heat, heating intensity depends on fuel propulsive systems (10) fuel feed, sidewall burning oxygen supply air-line system (11), fire grate
Burning oxygen supply air-line system (12) preheats the air feed size of air-line system (13), big portion convection of heat in heating process with box-shaped fire grate
It is transmitted to the raw material in 1st district, when continuous heating temperature raises and molten metal reaches a certain amount of, flame export can be controlled door
(5) turn down to reduce heating heat, reduce fuel feed accordingly simultaneously, this lateral wall burning oxygen supply air-line system (11), stove
Grate burning oxygen supply air-line system (12) can also corresponding be turned down, if now to the wind supply quantity of box-shaped fire grate preheating air-line system (13)
The temperature in 2nd district decreases, and by recovering, can strengthen heating intensity, will flow hot computer heating control door (3) simultaneously and turn down realization intensification,
Fuel propulsive systems (10) is mechanism's return after the combustor that the fuel that fuel powder funnel (9) falls is advanced to 3rd district, its
The upset of rear turning box-shaped fire grate (8) is lifted, and flip angle is about 60 ° ~ 80 °, and its air feed is step, supplies when flattening charging
Wind system off working state, only after upset is lifted and is put in place just recover air feed, feeding port for filling solid alloy furnace charge,
2 district's top half are generally equipped with exhaust blower and are gone out with flue dust pump drainage by unnecessary radiant heat.