CN104329799B - Trapezoidal fire grate hot air blast furnace with V-shaped fine seams - Google Patents
Trapezoidal fire grate hot air blast furnace with V-shaped fine seams Download PDFInfo
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- CN104329799B CN104329799B CN201410580848.6A CN201410580848A CN104329799B CN 104329799 B CN104329799 B CN 104329799B CN 201410580848 A CN201410580848 A CN 201410580848A CN 104329799 B CN104329799 B CN 104329799B
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Abstract
The invention discloses a trapezoidal fire grate hot air blast furnace with V-shaped fine seams. The trapezoidal fire grate hot air blast furnace comprises a furnace body, a furnace top, a furnace door, an ash door, a combustion supporting blast blower pipe, an inner liner and a fire grate, wherein the furnace top is arranged on the top of the furnace body, a wave-shaped fin is welded on the furnace top, the heat exchange area between the cold air and the smoke gas is increased, the heat exchange between the cold air and the smoke gas can be favorably realized, the fire grate is in a trapezoidal shape, the V-shaped fine seams are formed in the side wall of the fire grate, the trapezoidal structure is favorable for centralizing coal to the middle position for combustion, the V-shaped fine seams are used as secondary air inlets, and air entering a combustion region from the V-shaped fine seams can provide oxygen for the re-combustion of volatile ingredients generated during coal block pyrolysis, and can also be used as over fire air for providing oxygen for the sufficient combustion, so that the coal combustion is more sufficient, and further, the coal combustion efficiency is improved. The coal is mainly centralized in the middle rear position of the fire grate to be combusted, the fire grate near the furnace door is a flat plate, more air can enter the middle rear hearth position, and the complete fuel combustion can be favorably realized.
Description
Technical field
The present invention relates to being used for a kind of hot-blast stove of barn, more particularly, to a kind of hot-blast stove being applied to tobacco curing barn.
Background technology
Most cured tobacco curing house firing equipment is in accordance with domestic cigarettes and does [2009] No. 418 processing and manufacturings, fire grate at present
It is to be horizontally set on bottom of combustion chamber, coal cinder spreads scattered area in burner hearth is larger, and use the direct air intake in fire grate bottom,
The structure of upper straight smoke evacuation, the shortcoming of this combustion chamber is: grate area is excessive, when coal is in addition stove, spreads scattered area mistake
Greatly, the coal combustion away from combustion centre is very insufficient, causes coal utilizaton rate to reduce；Fire door heat insulation effect is poor, furnace heat from
The heat that fire door sheds is more；Body of heater short transverse refractory brick laying height too low so that this stove becomes one one
The stove of side burning one side heat exchange, cold wind is bottom-up when flowing through body of heater, has taken away excessive heat, has led to combustion zone temperature in stove
Degree reduces so that fuel combustion not exclusively, leads to chimney tail gas carbonomonoxide concentration very high.In addition, furnace outlet is larger, flue gas
In burner hearth, the time of staying is shorter, and the volatile ingredient that coal cinder produces in pyrolysis (includes tiny coal particle and combustibility gaseous state
Material) fail to be fully burned in burner hearth and just discharge burner hearth with flue gas, contain the volatile matter of unburned burning-up in a large number in flue gas
With unburnt tiny coal particle, burner hearth coal consumption is caused to increase, the thermal efficiency reduces.
Content of the invention
For solving the above problems, the present invention provides a kind of burning more abundant, improves efficiency of combustion, reduces having of coal consumption
The trapezoidal fire grate hot-blast stove of the thin seam of V-shaped.
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
A kind of trapezoidal fire grate hot-blast stove with the thin seam of V-shaped, including body of heater, furnace roof, fire door, Hui Men, fire grate and combustion-supporting drum
Air blower tube, described fire door is arranged on the front upper of body of heater, and grey door is arranged on the front lower of body of heater；
Described body of heater rolls, for metal foil, the cylinder that welding is formed；On the inwall of body of heater, along the circumferential direction fixation sets
Put the refractory brick flange bracing ring of a loop configuration, the inwall along body of heater lays refractory brick above refractory brick flange bracing ring
Make liner, the top of liner is concordant with the top of cylindrical furnace；
Described furnace roof is arranged on the top of body of heater, in the side of furnace roof welding flue as exhaust gases passes outlet, institute
Stating exhaust gases passes outlet is a flaring mouth, in the opposite side welding heat exchanger bracing frame of furnace roof, is also welded with many on furnace roof
Piece corrugated fin；
Described fire grate is made up of bottom fire grate, bracing ring and fire-gate side wall, and bracing ring is arranged on outside the top of fire-gate side wall
Side and with fire-gate side wall integral structure, bracing ring is fixed on the inwall of liner, and bottom fire grate is arranged in fire-gate side wall
Bottom；The trapezoidal shape in longitudinal cross-section of described fire grate, described bottom fire grate is made up of flat board and grate, in the inner side of fire-gate side wall
Bottom surface is respectively welded grate metal supporting frames along four sides, is provided with a draw-in groove in the centre of each grate metal supporting frames,
It is respectively provided with the draw-in groove in grate metal supporting frames one-to-one bayonet lock, described bottom oven in the middle part of four sides of bottom fire grate
Bayonet lock on row inserts in corresponding draw-in groove；Described flat board is near fire door；A plurality of V-shaped is arranged on described fire-gate side wall carefully stitch, this v
The thin seam of type is wide narrow below above, and the thin seam of V-shaped has angle perpendicular to fire-gate side wall base or with fire-gate side wall base；
The set location of described fire door is higher than bottom fire grate, and the set location of grey door is less than bottom fire grate.
As a preferred embodiment of the present invention, described fire door is double-decker, outer layer plate, and internal layer is by having certain thickness
The heat insulating refractory materials of degree are made, and internal layer is close to stove gate internal face.
Compared with prior art, a kind of trapezoidal fire grate hot-blast stove with the thin seam of V-shaped of the present invention has the advantage that
1st, trapezoidal shape fire grate structure is conducive to for coal concentrating on centre position burning, the thin seam of V-shaped as secondary air inlet, from
V-shaped carefully stitches volatile ingredient (the tiny coal particle of inclusion that the air entering in combustion zone both can produce in pyrolysis for coal cinder
With combustibility gaseous material) offer oxygen is provided again, oxygen can be provided as burnout degree for its after-flame again, make coal combustion more
Fully, so improve coal combustion efficiency.Burn because coal is concentrated mainly at position to the rear in the middle of fire grate, near stove
The grate of door is changed into flat board, allows more air into middle burner hearth position to the rear, is conducive to fuel combustion complete.
2nd, fire door is double-decker, outer layer plate, and internal layer setting has certain thickness heat insulating refractory materials, and internal layer is tight
Patch fire door internal face, the outer layer with seal washer links closely fire door outside wall surface, and the fire door of this sealing and good heat preservation performance can
To prevent hot blast from shedding from fire door from fire door effusion and heat, reduce thermal loss rate.
3rd, liner made by the refractory brick of the larger height of inboard wall of furnace body laying, lays to the position contour with cylinder body of heater, permissible
So that stove is only burnt generation high-temperature flue gas, and the cold air to outside stove transmit excessive heat, becomes a real hot-blast stove,
So be conducive to for ignition temperature in stove being maintained at a higher temperature, make fuel combustion abundant.
4th, the exhaust gases passes outlet of flaring, can reduce the flow velocity of flue gas, when being conducive to increasing stop in stove for the flue gas
Between so as to burning is more abundant, improve efficiency of combustion.
Brief description
Fig. 1 is a kind of front view of the trapezoidal fire grate hot-blast stove with the thin seam of V-shaped；
Fig. 2 is a kind of right view of the trapezoidal fire grate hot-blast stove with the thin seam of V-shaped；
Fig. 3 is the structural representation of furnace roof；
Fig. 4 is the structural representation of fire grate；
Fig. 5 is the top plan view of fire grate structure；
The structural representation of Fig. 6 fire door.
In accompanying drawing: 1 combustion blower pipe；2 liners；3 exhaust gases passes openings；4 furnace roofs；5 fins；
6 connect heat exchanger bracing frame；7 fire doors；8 fire grates；9 refractory brick flange bracing rings；10 grey doors；11 grates
Metal supporting frames；12 bodies of heater；13 grate gaps；14 bracing rings；15 grates；16 V-shapeds carefully stitch；17 is flat
Plate；18 insulatings；19 iron plate layers.
Specific embodiment
As shown in Figure 1, 2, a kind of trapezoidal fire grate hot-blast stove with the thin seam of V-shaped, including body of heater 12, furnace roof 4, fire door 7, ash
Door 10, fire grate 8 and combustion blower pipe 1, fire door 7 is arranged on the front upper of body of heater 12, before grey door 10 is arranged on body of heater 12
Face bottom, combustion blower pipe is arranged on the bottom of body of heater 12 and is located at below fire grate 8.
Body of heater 12 rolls the cylinder that welding is formed, bottom welding metal furnaces bottom for metal foil, and weld seam is tight, smooth,
Pore-free no slag inclusion is air tight.The refractory brick flange that a loop configuration is along the circumferential direction fixedly installed on the inwall of body of heater 12 props up
Support ring 9, above refractory brick flange bracing ring 9, liner 2 made by the inwall laying refractory brick along body of heater 12, the top of liner 2 with
The top of cylindrical furnace 12 is concordant.
Furnace roof 4 is arranged on the top of body of heater 12, in the side of furnace roof 4 welding flue as exhaust gases passes outlet 3, cigarette
Gas channel outlet is a flaring mouth, in the opposite side welding heat exchanger bracing frame 6 of furnace roof 4, is also welded with multi-disc on furnace roof 4
Corrugated fin 5, as shown in figure 3, corrugated fin 5 increases the heat exchange area of cold wind and flue gas, is conducive between cold wind and flue gas
Heat exchange.
Fire grate 8 is made up of bottom fire grate, bracing ring 14 and fire-gate side wall, as shown in Figure 4,5.Bracing ring 14 is arranged on fire grate
The top outer of side wall and with fire-gate side wall integral structure, be all to be manufactured with fire clay, bottom fire grate is arranged on fire grate side
Bottom in wall.Bracing ring 14 is fixed on the inwall of liner 2, that is, pass through to bore one along refractory brick on the circumferencial direction of liner 2
Individual circular support groove, bracing ring is placed in support slot, and gap fire clay between the two is applied, with this by fire grate
8 are fixed on liner 2.The trapezoidal shape in longitudinal cross-section of fire grate 8, bottom fire grate is made up of flat board 17 and grate 15, grate 15 it
Between formed grate gap 13, be respectively welded grate metal supporting frames 11 in the inside bottom surface of fire-gate side wall along four sides, in each stove
The centre of grid metal bracing frame 11 is all provided with a draw-in groove, is respectively provided with and props up with grate metal in the middle part of four sides of bottom fire grate
The one-to-one bayonet lock of draw-in groove on support 11, the bayonet lock in bottom fire grate inserts in corresponding draw-in groove, is existed with limiting grate 15
All around direction is moved, and bottom grate can be taken out bottom fire grate jack-up through stove gate by grey door 10.Flat board 17 leans on
Nearly fire door 7, fire-gate side wall arranges a plurality of V-shaped and carefully stitches, and the thin seam of this V-shaped is wide narrow below above, and V-shaped carefully stitches perpendicular to fire grate side
Wall base or have angle with fire-gate side wall base.
The set location of fire door 7 is higher than bottom fire grate, and the set location of grey door 10 is less than bottom fire grate, the bottom of body of heater 12
And it is located at grate cinder chamber formed below, cinder chamber's corresponding ash door 10.Fire door 7 is double-decker (iron plate layer 19 and heat-insulation and heat-preservation
Layer 18), as shown in fig. 6, outer layer plate, internal layer is by having certain thickness heat insulating refractory materials (as alumina silicate fibre etc.)
Make, internal layer is close to stove gate internal face, the outer layer with seal washer links closely fire door outside wall surface.
Coal adds from fire door 7, is placed on fire grate 8, is burnt on fire grate 8, air is pumped into fire grate 8 by air blast
The cinder chamber of lower section, then into combustion zone, contacting with the coal on fire grate makes it burn；The flue gas producing after coal combustion,
Flow out from exhaust gases passes opening.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although with reference to relatively
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and it all should be covered at this
In the middle of the right of invention.
Claims (2)
1. a kind of trapezoidal fire grate hot-blast stove with the thin seam of V-shaped, include body of heater (12), furnace roof (4), fire door (7), ash door (10),
Fire grate (8) and combustion blower pipe (1), described fire door (7) is arranged on the front upper of body of heater (12), and grey door (10) is arranged on stove
The front lower of body (12) it is characterised in that: described combustion blower pipe (1) is arranged on the bottom of body of heater (12) and is located at fire grate
(8), below, described body of heater (12) rolls the cylinder that welding is formed, bottom welding metal furnaces bottom for metal foil；In body of heater
(12) refractory brick flange bracing ring (9) of a loop configuration is along the circumferential direction fixedly installed on inwall, props up in refractory brick flange
Liner (2), the top of liner (2) and cylindrical furnace are made along the inwall laying refractory brick of body of heater (12) in the top of support ring (9)
(12) top is concordant；
Described furnace roof (4) is arranged on the top of body of heater (12), and in the side of furnace roof (4), welding flue goes out as exhaust gases passes
Mouth (3), described exhaust gases passes outlet is a flaring mouth, in opposite side welding heat exchanger bracing frame (6) of furnace roof (4), in stove
Also it is welded with multi-disc corrugated fin (5) on top (4)；
Described fire grate (8) is made up of bottom fire grate, bracing ring (14) and fire-gate side wall, and bracing ring (14) is arranged on fire-gate side wall
Top outer and with fire-gate side wall integral structure, bracing ring (14) is fixed on the inwall of liner (2), and bottom fire grate is arranged on
Bottom in fire-gate side wall；The trapezoidal shape in longitudinal cross-section of described fire grate (8), described bottom fire grate is by flat board (17) and grate
(15) form, be respectively welded grate metal supporting frames (11) in the inside bottom surface of fire-gate side wall along four sides, in each grate metal
The centre of bracing frame (11) is all provided with a draw-in groove, is respectively provided with and grate metal supporting frames in the middle part of four sides of bottom fire grate
(11) the one-to-one bayonet lock of the draw-in groove on, the bayonet lock in described bottom fire grate inserts in corresponding draw-in groove, described flat board (17)
Near fire door (7)；A plurality of V-shaped is arranged on described fire-gate side wall carefully stitch, the thin seam of this V-shaped is wide narrow below above, and the thin seam of V-shaped is vertical
Have angle in fire-gate side wall base or with fire-gate side wall base；
The set location of described fire door (7) is higher than bottom fire grate, and the set location of grey door (10) is less than bottom fire grate, body of heater (12)
Bottom and be located at grate cinder chamber formed below, cinder chamber's corresponding ash door (10).
2. a kind of trapezoidal fire grate hot-blast stove with the thin seam of V-shaped according to claim 1 it is characterised in that: described fire door
(7) it is double-decker, outer layer plate, internal layer is made by having certain thickness heat insulating refractory materials, and internal layer is close to fire door
Mouth internal face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580848.6A CN104329799B (en) | 2014-10-27 | 2014-10-27 | Trapezoidal fire grate hot air blast furnace with V-shaped fine seams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580848.6A CN104329799B (en) | 2014-10-27 | 2014-10-27 | Trapezoidal fire grate hot air blast furnace with V-shaped fine seams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329799A CN104329799A (en) | 2015-02-04 |
| CN104329799B true CN104329799B (en) | 2017-01-25 |
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ID=52404569
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410580848.6A Expired - Fee Related CN104329799B (en) | 2014-10-27 | 2014-10-27 | Trapezoidal fire grate hot air blast furnace with V-shaped fine seams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329799B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194917B (en) * | 2018-03-05 | 2022-12-06 | 中南大学 | Bulk coal bed top ignition flue-curing hot blast stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1380322A (en) * | 1971-11-19 | 1975-01-15 | Hoogovens Ijmuiden Bv | Heat regenerator |
| CN85200221U (en) * | 1985-04-01 | 1986-02-19 | 刘雪华 | V type burning apparatus |
| CN2667316Y (en) * | 2003-11-10 | 2004-12-29 | 王伟 | Rotary grating vertical boiler and coal supply device |
| CN201078697Y (en) * | 2007-04-23 | 2008-06-25 | 黄文玉 | Step type double grate forward and reverse bake boiler |
| CN204165231U (en) * | 2014-10-27 | 2015-02-18 | 重庆大学 | A kind of trapezoidal fire grate hot-blast stove device with V-type finedraw |
-
2014
- 2014-10-27 CN CN201410580848.6A patent/CN104329799B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1380322A (en) * | 1971-11-19 | 1975-01-15 | Hoogovens Ijmuiden Bv | Heat regenerator |
| CN85200221U (en) * | 1985-04-01 | 1986-02-19 | 刘雪华 | V type burning apparatus |
| CN2667316Y (en) * | 2003-11-10 | 2004-12-29 | 王伟 | Rotary grating vertical boiler and coal supply device |
| CN201078697Y (en) * | 2007-04-23 | 2008-06-25 | 黄文玉 | Step type double grate forward and reverse bake boiler |
| CN204165231U (en) * | 2014-10-27 | 2015-02-18 | 重庆大学 | A kind of trapezoidal fire grate hot-blast stove device with V-type finedraw |
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| Publication number | Publication date |
|---|---|
| CN104329799A (en) | 2015-02-04 |
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Granted publication date: 20170125 Termination date: 20171027 |