CN106440799A - Industrial furnace for burning low-heat value middlings - Google Patents
Industrial furnace for burning low-heat value middlings Download PDFInfo
- Publication number
- CN106440799A CN106440799A CN201610874150.4A CN201610874150A CN106440799A CN 106440799 A CN106440799 A CN 106440799A CN 201610874150 A CN201610874150 A CN 201610874150A CN 106440799 A CN106440799 A CN 106440799A
- Authority
- CN
- China
- Prior art keywords
- blast cap
- spiral
- layer
- flow type
- burner
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/10—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/04—Casings; Supports therefor
- F27B15/06—Arrangements of linings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
The present invention discloses an industrial furnace for burning low-heat value middling coal. The industrial furnace comprises a base, a fluidized-bed air distributor, a swirl hood, a precast refractory concrete furnace wall, a partition wall, a hearth, a louvered high-temperature separator, a precast refractory concrete furnace roof, and a rear combustion chamber, wherein the partition wall is disposed on the base and located in the middle of a furnace chamber; the fluidized-bed air distributor in which a plurality of air outlets are formed is disposed on the base at the bottom of the hearth; one swirl hood is correspondingly arranged on the fluidized-bed air distributor, a sidewall of a hood body comprises a plurality of pore layers disposed in a height direction, with each pore layer comprising a plurality of pores uniformly arranged in the axial direction of the sidewall and incoming airflow from the air distributor being jetted into the hearth via the pores; the high-temperature separator is disposed between the hearth and the rear combustion chamber on the partition wall; exhaust gas produced after combustion in the hearth is guided into the rear combustion chamber by the high-temperature separator, and then discharged via a high-temperature exhaust gas outlet disposed in a sidewall of the rear combustion chamber. The industrial furnace of the present invention is able to burn coal having an extremely low heat value.
Description
Technical field
The invention belongs to coal-fired industrial furnace field, more particularly to a kind of Industrial Stoves for washing middle coal for lower heat of combustion.
Technical background
General coal for coking, chemical industry coal, the raw coal of outlet coal and some special use coals, coal works of will sending to be elected in advance is washed
Choosing.Coal in the intermediate product during gravity concentration claims to wash, the ash that Xi Zhongmeishi coal preparation plant selects is less than higher than cleaned coal
The product of gangue.The volatile matters Vdaf of middle coal washes about in the range of 25% 40% in China, and moisture Mar is according to degree of dehydration
Different, typically 10% 15%, ash Aar is then higher, and generally 30% 40%, up to 50% for having.Middle coal is washed due to ash
Point high, the tendency of slagging scorification is larger.
China washes the yield of middle coal and is about 7% the 8% of raw coal output, and great majority are used by station boiler.Therefore, wash
Middle coal occupies considerable status in power fuel, and it is also an important process to study its combustion characteristics.
Due to washing the particularity of middle coal, current burning of coal mainly with adopt with the coal of higher thermal value (6MJ/kg with
On) combust.Chinese patent ZL200820209744.4 discloses a kind of Industrial Stoves, and which can be used for burning and washes middle coal,
The kiln includes kiln body body of wall, discharging opening, charging aperture, burner hearth, fire bars, flue, outlet flue, burner, chimney and heat-insulation layer, wherein
Fire bars is in burner hearth, and the plane same level face shape that fire bars is formed has a certain degree, and its angle is the flat of 30-60 °, fire bars formation
Face is with body of wall junction, and upper end sets charging aperture, and lower end sets out material mouth, and roof of the furnace is outputed mouth and connected with flue, outlet flue
It is shaped as square or circular.In this Industrial Stoves burner hearth temperature can to 850 DEG C, flue gas in the burner hearth can after-flame, and then as far as possible
Reduce the flue gas for discharging, reduce environmental pollution.
But this Industrial Stoves build by laying bricks or stones to form body of wall using live refractory brick and Rhizoma Begoniae Willsonii, long construction period is costly, and
And being high heating value is required to coal, low heat value is washed middle coal be particularly below 4MJ/kg to wash middle coal combustion effect bad, it is impossible to fill
Divided combustion, causes the recycling for washing middle coal to low heat value to process.
Content of the invention
The present invention proposes a kind of Industrial Stoves for washing middle coal for lower heat of combustion, and its furnace construction for passing through to optimize changes
Enter so that low various of its coal calorific value that fully can burn wash middle coal, and which by cordwood module composition furnace wall, overall package goes out
Factory, short construction period, with low cost.
Realize the concrete technical scheme adopted by the purpose of the present invention as follows：
A kind of Industrial Stoves for washing middle coal for lower heat of combustion, including base, fluidized bed air distribution plate, spiral-flow type blast cap,
Prefabricated refractory concrete furnace wall, partition wall, burner hearth, louvered high-temperature separator, prefabricated refractory concrete furnace roof and after-burner, its
In,
Prefabricated refractory concrete furnace wall is arranged on base and surrounds furnace body structure along surrounding, and the prefabricated fire resisting is mixed
Solidifying soil furnace roof is arranged on furnace body top, forms furnace roof, the base, prefabricated refractory concrete furnace wall and prefabricated refractory concrete
The inner space that native furnace roof is formed forms furnace chamber；
The partition wall is arranged on base and is located in the middle part of the furnace chamber, and furnace chamber is divided into burner hearth and after-burner by which；
On the base of the burner hearth bottom, the fluidized bed air distribution plate is provided with, has multiple exhaust vents thereon, the fluidisation
On bed air distribution plate, array is disposed with spiral-flow type blast cap, and its quantity is less than air-out hole number, and on each exhaust vent, correspondence is disposed with one
Individual spiral-flow type blast cap, described spiral-flow type blast cap includes blast cap body, and this blast cap body is hollow structure, its bottom and air distribution plate
Exhaust vent is communicated, and includes on the side wall of blast cap body to arrange multiple little aperture layer along short transverse, and each little aperture layer is included along side wall
Multiple apertures that circumference is evenly arranged, the air-flow that the air distribution plate is flowed into sprays into burner hearth through the aperture, blows the coal in burner hearth
Burning；
On the partition wall, Wei Yu burner hearth and after-burner between, place is provided with high-temperature separator, the cigarette after stove chamber inner combustion
Gas leads to after-burner by the high-temperature separator, and is discharged by the high-temperature flue gas outlet being arranged on the wall of after-burner side.
Preferably, the spiral-flow type blast cap include in array be distributed and first group of spiral-flow type blast cap of height identical and
Every be arranged between each first group of spiral-flow type blast cap multiple be higher than first group of spiral-flow type blast cap second group of spiral-flow type blast cap, and
Second group of spiral-flow type blast cap height highest Swirl formula blast cap central by burner hearth is arranged on, and with this
Around the multiple highly relatively low peripheral spiral-flow type blast cap composition which is arranged in a ring centered on heart spiral-flow type blast cap.
Preferably, the annular that the periphery spiral-flow type blast cap is surrounded is the multi-layer annular of arranged concentric, and each layer annulate lamella is equal
Centered on the Swirl formula blast cap but diameter is different.
Preferably, one layer of adjacent annular peripheral rotation of its periphery of the aspect ratio of each layer of annular peripheral spiral-flow type blast cap
Streaming blast cap highly high, preferably high 1.2-2.0 times, more preferably 1.4-1.6 times.
Preferably, its center line of discharge of multiple apertures in each little aperture layer described is external with the blast cap sheet of spiral-flow type blast cap
Perimeter surface is tangent.
Preferably, the high-temperature separator includes top board, base plate and is arranged on the blade between top board and base plate to divide
From piece, the high-temperature separator is mounted on the upper surface of the partition wall, and which is located at the height of burner hearth side more than after being located at
The height of combustor side.
Preferably, the vane type separating sheet is that each vane type divides along from burner hearth to the multi-disc of after-burner directional spreding
It is the bending blade for being combined by two panels blades at a certain angle from piece, between the vane type separating sheet on each layer is equidistant
Vane type separating sheet between arrangement, and adjacent two layers mutually staggers, so that flue gas is by shape during the high-temperature separator
Become bent gas flow route, flue gas turns round according to this and above-mentioned vane type separating sheet is collided, so as to the granule of separable certain particle size.
Preferably, the prefabricated refractory concrete furnace wall is the body of wall of multiple structure, outwards includes first successively from inwall
Inner liner, the second inner liner, intermediate thermal insulating layer, heat-insulation layer and external protection coating, wherein, the first inner liner liner by refractory cement and
Refractory aggregate is formed with heat-resisting unit's steel cast according to a certain ratio, forms ground floor refractory layer；Second inner liner is by fire resisting bone
Material is formed with stainless steel cloth cast；The intermediate thermal insulating layer is folded into by alumina silicate fibre felt and diatom insulating brick-layer；Institute
State heat-insulation layer to prepare for inorganic heat insulation material；The external protection coating is steel backplate.
Preferably, in the burner hearth and after-burner, air-cooled heating surface is disposed with, the cold air that outside pressure fan is come can be
It is heated through the air-cooled heating surface in furnace chamber, becomes high temperature air and thermal source utilization is used as by pipeline output.
Preferably, in the burner hearth and after-burner, wall-cooling surface is disposed with, the water after sofening treatment can be through external water
It is pumped in furnace chamber and is heated after the wall-cooling surface, steam can be become and thermal source utilization is used as by pipeline output.
The Industrial Stoves of the present invention do not arrange heating surface due to the emulsion zone in fluid bed, so the very low coal of calorific value ignites
Heat can be accumulated under the operating mode for not having to absorb heat afterwards, high temperature is formed, heat and make the new coal combustion for supplementing, go round and begin again, reach
High temperature, abundant, stable burning, control the thermal power of fire box temperature and stove with the means for adjusting coal-air ratio.
The first-class triangular arrangement spiral-flow type blast cap of air distribution plate of the present invention in bed.Blast cap is the cast steel system of heat-resistant antifriction
Make, blast cap center is that hollow structure, air is through being divided evenly to blast cap aperture, aperture export center and blast cap circumference herein
Tangent, so that the high pressure draught from aperture out is tangentially sprayed, the rotation of bed particle is promoted, is laterally disturbed, together with ascending air
Strong Dual-Phrase Distribution of Gas olid hybrid motion is formed, improves efficiency of combustion.
The present invention is disposed with, at furnace outlet, the louvered high-temperature separator that heat resisting steel is made, by more than 20 μm carbon
Grain is separated and is snapped down to an area along wall and burns away, and improves the burnout rate of carbon.
The Industrial Stoves bottom of the present invention is not to arrange heated element in emulsion zone, and coal enters stove and ignites after heat release, due to not having
Have and absorb heat and radiating (or radiating is little), thus the rapid rising of furnace temperature reaches and can make the clean-burning high temperature of coal；In addition material
Grain constantly seethe with excitement up and down by disturbance, is fully contacted with air, has fully met high temperature, oxygen and the burning time demand of burning, institute
Middle coal is washed with low heat value can fully burn, run steadily in the long term.In addition, controlling fire box temperature and stove by changing wind coal proportion
The thermal power of son.Assembled with the structure of building module furnace wall, compared with live brick stove, construction period substantially reduced,
Weight saving more than 2/3.
Description of the drawings
Fig. 1 is that the overall structure of the Industrial Stoves for washing middle coal for lower heat of combustion according to the embodiment of the present invention is illustrated
Figure；
Fig. 2. for the structural representation of the prefabricated refractory concrete furnace wall in the Industrial Stoves in Fig. 1；
Fig. 3 is the structural representation of the blast cap in the Industrial Stoves in Fig. 1；
Fig. 4 is the cross-sectional view of the blast cap in Fig. 3；
Fig. 5 is the structural representation of the high-temperature separator 7 in the Industrial Stoves in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment is not intended to limit the present invention only in order to explain the present invention.
A kind of Industrial Stoves for washing middle coal for lower heat of combustion of the present embodiment, as shown in figure 1, the base including steel
1st, air distribution plate 2, spiral-flow type blast cap 3, prefabricated refractory concrete furnace wall 4, partition wall 5, burner hearth 6, louvered high-temperature separator 7, prefabricated
Refractory concrete furnace roof 8, after-burner 9, high-temperature flue gas outlet 10.
Such as Fig. 1, steel base 1 is arranged on Industrial Stoves matrix, and surrounding arranges prefabricated refractory concrete furnace wall 4 thereon,
Top layout has prefabricated refractory concrete furnace roof 8, is internally formed the furnace chamber of Industrial Stoves, to carry out burning of coal.
Prefabricated refractory concrete furnace wall 4 is the body of wall of multiple structure, from inwall outwards include successively the first inner liner 41, the
Two inner liners 42, intermediate thermal insulating layer 43, heat-insulation layer 44 and external protection coating 45, wherein, the first inner liner liner 41 is by refractory cement
Formed with heat-resisting unit's steel cast with refractory aggregate according to a certain ratio, ground floor refractory layer is formed, its thickness according to the actual requirements may be used
Think 0.5-5cm.Second inner liner 42 is formed with stainless steel cloth cast by refractory aggregate, forms second layer refractory layer, and which is thick
Degree can be 0.5-5cm according to the actual requirements.Intermediate thermal insulating layer 43 is folded into by alumina silicate fibre felt and diatom insulating brick-layer,
Its thickness can be 1-10cm according to the actual requirements.Heat-insulation layer is prepared for inorganic heat insulation material, for example, diatom insulating brick.Outer anti-
Sheath 45 is steel backplate.
Partition wall 5 is arranged on steel base 1, is preferably placed in the middle part of furnace chamber, and furnace chamber is divided into burner hearth 6 and after-burner 9 by which
Two chambers.
On the steel base 1 of 6 bottom of burner hearth, air distribution plate 2 is provided with, multiple exhaust vents on air distribution plate 2, are had, the fluidisation
On bed air distribution plate 2, array is disposed with spiral-flow type blast cap 3, and its quantity is less than air-out hole number, i.e., multiple air outlets correspond to a rotation
Streaming blast cap 3, wind is sprayed from air outlet and spiral-flow type blast cap 3, blows the coal combustion in burner hearth 6.
The structure of spiral-flow type blast cap 3 and air-out effect have material impact for burning of coal, its wind direction and air output
Distribution can produce decisive role to burning of coal efficiency.As shown in Figures 3 and 4, the spiral-flow type blast cap 3 of the embodiment of the present invention is whole
Body is in shaft-like, and including blast cap body 31, the center of the blast cap body 31 is hollow structure, top closure, bottom and air distribution plate 2
Air holes is communicated.Include the multiple little aperture layer for arranging in body of rod short transverse on the side wall of blast cap body 31, each little aperture layer is divided
Cloth is on the differing heights of side wall, and wherein each little aperture layer is included along side-wall shaft to the multiple apertures 32 being evenly arranged, air warp
It is divided evenly to blast cap aperture herein.Preferably, 32 export center of aperture is tangent with the excircle of shaft-like blast cap 3, makes from little
Hole high pressure draught out tangentially sprays, and promotes the rotation of bed particle, laterally disturbs, while the rising for spraying with other air outlets
Air-flow forms strong Dual-Phrase Distribution of Gas olid hybrid motion together, improves efficiency of combustion.Preferably, the little hole count in each little aperture layer
Measure as 4-8.
Preferably, the spiral-flow type blast cap 3 of the embodiment of the present invention is distributed for array, and each spiral-flow type blast cap 3 stretches into furnace chamber
Interior height is not necessarily all identical.It is preferred that each height identical spiral-flow type blast cap 3 in array distribution (claims in the present embodiment
For first group of spiral-flow type blast cap) in the higher spiral-flow type blast cap of the multiple height of arranged for interval 3 (in the present embodiment, be referred to as second group of rotation
Streaming blast cap).As shown in figure 1, the higher spiral-flow type blast cap 3 of multiple height is second group of spiral-flow type blast cap top is higher by the first rotation
Streaming style and features 3, stretches into furnace chamber center.The preferred arrangement of the second spiral-flow type blast cap 3 is, to be located in burner hearth 6 on air distribution plate 2
Heart location arrangements have a height highest spiral-flow type blast cap 3 (Swirl formula blast cap), and with the height highest spiral-flow type
The higher spiral-flow type blast cap of multiple height 3 (peripheral spiral-flow type blast cap) is positioned around centered on blast cap 3, to form multiple rings
Shape spiral-flow type blast cap.Wherein, the height of highest Swirl formula blast cap 3 can be for example 1/2nd or three of furnace height
/ bis- or other height, centered on which in relatively low spiral-flow type blast cap 3 of many layer heights of periphery distribution, each layer surrounds ring
Each spiral-flow type blast cap 3 of shape highly preferred identical, and the aspect ratio of each layer of the second annular spiral-flow type blast cap 3 its periphery
Another layer of the second annular spiral-flow type blast cap 3 highly high.Preferably, the height of each layer of the second annular spiral-flow type blast cap 3
Spend another layer of annular 3 height of the second spiral-flow type blast cap for its periphery 1.2-2.0 times, more preferably 1.4-1.6 times.Successively
Mode, by the different but formation multilayer loop of array arrangement and multiple height of multiple the first spiral-flow type of height identical blast caps 3
Second spiral-flow type blast cap, 3 alternate intervals of shape arrangement are arranged, and can cause the air-out volume maximum for entering in burner hearth from blast cap, and
Wind direction is uniform and stable, the distinguished and admirable atmosphere for becoming the stable whole burner hearth of insertion in freeze profile；While the second of prominent multi-layer annular
Spiral-flow type blast cap 3 can form stirring and the effect of being spaced apart in burning to the coal in burner hearth so that burning wind therein is more
Plus equably mix with coal, be conducive to the abundant burning of coal, improving combustion efficiency.
Preferably, spiral-flow type blast cap 3 is made using the cast steel of heat-resistant antifriction.
As shown in figure 1, the part on partition wall 5 between burner hearth 6 and 9 two chambers of after-burner is additionally provided with high temperature
Separator 7, the flue gas after burning leads to after-burner 9 by the high-temperature separator 7, more than the granule of certain diameter (as 20 μm)
It is isolated after colliding louvered separator.
As shown in figure 4, in one embodiment, 5 upper surface of partition wall is that inclined surface, wherein 6 side of burner hearth is highly little
Height in after-burner side.It is in louvered that high-temperature separator 7 on partition wall 5 is overall, including top board 72, base plate 73 and sets
Put separating sheet 71 on the blade between top board 72 and base plate 73.High-temperature separator 7 is mounted on 5 upper surface of above-mentioned partition wall
On, matchingly, its length for being located at 6 side of burner hearth is more than the length positioned at after-burner side.High-temperature separator 7 includes edge
From the multiple layers of vanes formula separating sheet 71 of burner hearth to after-burner directional spreding, wherein vane type separating sheet 71 be by two panels blades
The bending blade that (preferably 30 ° -60 °) are combined at a certain angle, between the vane type separating sheet 71 on each layer is equidistant
Vane type separating sheet 71 between arrangement, and adjacent two layers mutually staggers, so that when flue gas is by the high-temperature separator 7
Bent gas flow route is formed, flue gas turns round according to this and above-mentioned vane type separating sheet is collided, and is greater than so as to separable certain particle size
More than 20 μm of granule, above-mentioned granule can glide to being back in fluid bed along the slope of partition wall and burn further.
During work, low heat value is washed middle coal and enters furnace rear, burns in the emulsion zone in lower furnace fluid bed, thicker carbon granules
Disturbance is seethed wherein up and down, and the time of staying reaches more than 30 minutes, fully can burn, and controls burner hearth with regulation wind coal proportion
Temperature, the phosphorus content for discharging slag from furnace bottom reaches less than 0.5%.Carried by air-flow after burning in 46 and still continue to after-burner 9
Afterflame burns.High-temperature flue gas deliver to user's material drying or roasted product from outlet 10.In 6 exit of burner hearth, louvered is disposed with
High-temperature separator, flue gas is turned round the separable granule for being more than more than 20 μm of collision rift according to this, is glided along the slope of partition wall and is back to
Burnt in fluid bed further, to improve efficiency.
High-temperature flue gas outlet 10 is had on 9 side wall of after-burner, and the flue gas after after-burner burning passes through the high-temperature flue gas
Outlet 10 is discharged.
In one embodiment, in burner hearth 6 and after-burner 9, air-cooled heating surface is disposed with.Cold by outside pressure fan
Air is heated through air-cooled heating surface herein in furnace chamber, is become high temperature air, is exported by pipeline, can be used for drying
The clean product such as grain, flour, remaining structure is same as Example 1.
In one embodiment, in burner hearth 6 and after-burner 9, wall-cooling surface is disposed with.Water warp after sofening treatment
External water is pumped in furnace chamber, is heated, can become steam and be exported by pipeline, so that user makes after the wall-cooling surface
With.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of Industrial Stoves for washing middle coal for lower heat of combustion, including base (1), fluidized bed air distribution plate (2), spiral-flow type wind
Cap (3), prefabricated refractory concrete furnace wall (4), partition wall (5), burner hearth (6), high-temperature separator (7), prefabricated refractory concrete furnace roof
(8) and after-burner (9), wherein,
Prefabricated refractory concrete furnace wall (4) are arranged in base (1) above and surround furnace body structure along surrounding, described prefabricated
Refractory concrete furnace roof (8) is arranged on furnace body top, forms furnace roof, base (1), prefabricated refractory concrete furnace wall
(4) inner space for being formed with prefabricated refractory concrete furnace roof (8) forms furnace chamber；
Partition wall (5) are arranged in the middle part of furnace chamber, and furnace chamber is divided into burner hearth (6) and after-burner (9) by which；
On the base (1) of burner hearth (6) bottom, the fluidized bed air distribution plate (2) is provided with, has multiple exhaust vents thereon,
The upper array of the fluidized bed air distribution plate (2) is disposed with spiral-flow type blast cap (3), and its quantity is less than air-out hole number, the spiral-flow type wind
Cap (3) includes blast cap body (31), and the blast cap body (31) is that hollow structure, its bottom is communicated with the exhaust vent of air distribution plate (2),
Include the multiple little aperture layer for arranging along short transverse on the side wall of blast cap body (31), each little aperture layer includes equal along side wall circumference
Multiple apertures (32) of even arrangement, the air-flow that air distribution plate (2) flow into sprays into burner hearth (6) through the aperture, blows burner hearth (6)
Interior coal combustion；
On partition wall (5), between burner hearth (6) and after-burner (9), place is provided with high-temperature separator (7), in burner hearth (6)
Flue gas after interior burning leads to after-burner (9) by the high-temperature separator (7), and by being arranged on after-burner (9) side wall
On high-temperature flue gas outlet (10) discharge.
2. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to claim 1, wherein, the spiral-flow type wind
Cap (3) includes to be distributed in array and first group of spiral-flow type blast cap of height identical and arranged for interval are in each first group of spiral-flow type wind
Multiple between cap are higher than second group of spiral-flow type blast cap of first group of spiral-flow type blast cap, and second group of spiral-flow type blast cap is by setting
A height highest Swirl formula blast cap in burner hearth (6) central authorities is put, and is enclosed centered on the Swirl formula blast cap
Around the multiple highly relatively low peripheral spiral-flow type blast cap composition which is arranged in a ring.
3. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to claim 2, wherein, the periphery eddy flow
The annular that formula blast cap is surrounded for arranged concentric multi-layer annular, each layer annulate lamella all centered on the Swirl formula blast cap but
Diameter is different.
4. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to claim 3, wherein, each layer annular
Highly high, the preferably high 1.2- of one layer of adjacent annular peripheral spiral-flow type blast cap of its periphery of the aspect ratio of peripheral spiral-flow type blast cap
1.8 again.
5. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to claim 4, wherein, each aperture described
Multiple apertures (32) its center line of discharge on layer is tangent with blast cap body (31) outer surface of spiral-flow type blast cap (3).
6. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to any one of claim 1-5, wherein, institute
Stating high-temperature separator (7) is included on top board (72), base plate (73) and the blade being arranged between top board (72) and base plate (73)
Separating sheet (71), the high-temperature separator (7) is mounted on the upper surface of the partition wall (5), and which is located at burner hearth (6) side
The height being highly more than positioned at after-burner side.
7. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to claim 6, wherein, the vane type divides
From piece (71) be along from burner hearth to the multi-disc of after-burner directional spreding, each vane type separating sheet (71) be by two panels blades with
The bending blade that certain angle is combined, vane type separating sheet (71) the equi-spaced apart arrangement on each layer, and adjacent two
Vane type separating sheet (71) between layer mutually staggers, so that forming tortuous gas when flue gas is by the high-temperature separator (7)
Stream line, flue gas turns round according to this and collides above-mentioned vane type separating sheet, so as to the granule of separable certain particle size.
8. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to any one of claim 1-7, wherein, institute
State prefabricated refractory concrete furnace wall (4) for multiple structure body of wall, from inwall outwards include successively the first inner liner (41), second
Inner liner (42), intermediate thermal insulating layer (43), heat-insulation layer (44) and external protection coating (45), wherein, the first inner liner liner (41) by
Refractory cement and refractory aggregate are formed with heat-resisting unit's steel cast according to a certain ratio, form ground floor refractory layer；Second liner
Layer (42) is formed with stainless steel cloth cast by refractory aggregate；Intermediate thermal insulating layer (43) are by alumina silicate fibre felt and diatom
Insulating brick-layer is folded into；The heat-insulation layer is prepared for inorganic heat insulation material；Described external protection coating (45) are steel backplate.
9. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to any one of claim 1-8, wherein, institute
State in burner hearth (6) and after-burner (9) and air-cooled heating surface is disposed with, the cold air that outside pressure fan is come can be through institute in furnace chamber
State air-cooled heating surface to be heated, become high temperature air and thermal source utilization is used as by pipeline output.
10. a kind of Industrial Stoves for washing middle coal for lower heat of combustion according to any one of claim 1-8, wherein,
Wall-cooling surface is disposed with burner hearth (6) and after-burner (9), the water after sofening treatment can be pumped to furnace chamber through external water
Interior heated after the wall-cooling surface, steam can be become and thermal source utilization is used as by pipeline output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874150.4A CN106440799A (en) | 2016-10-05 | 2016-10-05 | Industrial furnace for burning low-heat value middlings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874150.4A CN106440799A (en) | 2016-10-05 | 2016-10-05 | Industrial furnace for burning low-heat value middlings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106440799A true CN106440799A (en) | 2017-02-22 |
Family
ID=58171740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610874150.4A Pending CN106440799A (en) | 2016-10-05 | 2016-10-05 | Industrial furnace for burning low-heat value middlings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087885A (en) * | 2018-01-25 | 2018-05-29 | 济南鲁东耐火材料有限公司 | A kind of furnace lining of garbage burning, gasification stove |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046976U (en) * | 1988-12-31 | 1989-11-01 | 华中理工大学 | High-temp. fume fluidised-bed furnace |
| CN101576254A (en) * | 2009-06-09 | 2009-11-11 | 西安热工研究院有限公司 | Central air supply device of boiler hearth of circulating fluidized bed |
| CN201449145U (en) * | 2009-07-10 | 2010-05-05 | 山东博大集团有限公司 | High-strength lightweight heat-insulating heating furnace integral wall |
| CN201697155U (en) * | 2010-05-20 | 2011-01-05 | 黄石市天达热能设备有限公司 | Special matching fluidized bed furnace for drying for coal mill |
| CN202074539U (en) * | 2011-04-29 | 2011-12-14 | 黄石市天达热能设备有限公司 | Large area combined grid separator capable of reducing fume, flying ash and residual carbon |
| CN202382230U (en) * | 2011-11-28 | 2012-08-15 | 骆大军 | Fluid bed furnace |
| CN203605455U (en) * | 2013-12-05 | 2014-05-21 | 黄石市天达热能设备有限公司 | Double-stage separation efficient clean fluidized bed coal hot air furnace |
| CN203718760U (en) * | 2014-02-28 | 2014-07-16 | 大理州大维肥业有限责任公司 | Boiling furnace |
| CN105157043A (en) * | 2015-10-09 | 2015-12-16 | 杨刚 | Special boiling furnace for strong-oxygen combustion sludge |
-
2016
- 2016-10-05 CN CN201610874150.4A patent/CN106440799A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046976U (en) * | 1988-12-31 | 1989-11-01 | 华中理工大学 | High-temp. fume fluidised-bed furnace |
| CN101576254A (en) * | 2009-06-09 | 2009-11-11 | 西安热工研究院有限公司 | Central air supply device of boiler hearth of circulating fluidized bed |
| CN201449145U (en) * | 2009-07-10 | 2010-05-05 | 山东博大集团有限公司 | High-strength lightweight heat-insulating heating furnace integral wall |
| CN201697155U (en) * | 2010-05-20 | 2011-01-05 | 黄石市天达热能设备有限公司 | Special matching fluidized bed furnace for drying for coal mill |
| CN202074539U (en) * | 2011-04-29 | 2011-12-14 | 黄石市天达热能设备有限公司 | Large area combined grid separator capable of reducing fume, flying ash and residual carbon |
| CN202382230U (en) * | 2011-11-28 | 2012-08-15 | 骆大军 | Fluid bed furnace |
| CN203605455U (en) * | 2013-12-05 | 2014-05-21 | 黄石市天达热能设备有限公司 | Double-stage separation efficient clean fluidized bed coal hot air furnace |
| CN203718760U (en) * | 2014-02-28 | 2014-07-16 | 大理州大维肥业有限责任公司 | Boiling furnace |
| CN105157043A (en) * | 2015-10-09 | 2015-12-16 | 杨刚 | Special boiling furnace for strong-oxygen combustion sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087885A (en) * | 2018-01-25 | 2018-05-29 | 济南鲁东耐火材料有限公司 | A kind of furnace lining of garbage burning, gasification stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN87103862A (en) | The method of secondary cycle fluidized bed reactor and its operating | |
| CN102777894B (en) | Reverse powder injection combustor | |
| CN202056861U (en) | Biomass particle combustor | |
| CN105650624B (en) | A kind of coal gas and air classification premixed combustion and the hot-blast stove for spreading heat | |
| CN104211309B (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN1125948C (en) | Combustion apparatus with cross-section variable circulating fluidized bed | |
| CN106122975A (en) | One way of life incinerator | |
| CN102230726B (en) | Sleeve type continuous calcining vertical kiln | |
| CN104791775A (en) | Vertical pulverized coal boiler with burner arranged at bottom | |
| CN103939919A (en) | Efficient oil sludge incinerator | |
| CN103175398B (en) | A kind of precalcining system firing heavy oil New Type Dry-process Cement Production | |
| CN102012038A (en) | Air distribution system of biomass moulding fuel boiler | |
| CN106440799A (en) | Industrial furnace for burning low-heat value middlings | |
| CN102491654B (en) | Hot-air circulation lime kiln | |
| CN106440800A (en) | Kiln for combusting low-heat-value coal slime | |
| CN101701763B (en) | Positive-pressure combustion device and process thereof | |
| CN103234348A (en) | Vertical suspension firing and horizontal boiling heating large-scale precoated sand regenerating roaster | |
| CN2814286Y (en) | Circulating fluidized bed furnace | |
| CN103062893A (en) | Pulverized coal water heater | |
| CN2666909Y (en) | Energy-saving environment protection active lime burning-in shaft kiln | |
| CN202303348U (en) | Vertical powder burning industrial boiler with top combustor spraying downwards | |
| CN102192591A (en) | Vertical biomass hot blast heater | |
| CN201251178Y (en) | Coal-fired floating furnace | |
| CN201501893U (en) | Novel high-wind temperature top combustion type pebble bed hot wind furnace | |
| CN104964270A (en) | Gasified combustion machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |