CN108253408A - Fin Filter Tuber For Clean Coal is counter heats wind furnace for band - Google Patents

Fin Filter Tuber For Clean Coal is counter heats wind furnace for band Download PDF

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Publication number
CN108253408A
CN108253408A CN201810178703.1A CN201810178703A CN108253408A CN 108253408 A CN108253408 A CN 108253408A CN 201810178703 A CN201810178703 A CN 201810178703A CN 108253408 A CN108253408 A CN 108253408A
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China
Prior art keywords
combustion chamber
moulded coal
coal bed
exhaust pipe
smoke exhaust
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CN201810178703.1A
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Chinese (zh)
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CN108253408B (en
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艾元方
陈丽燕
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Central South University
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Central South University
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Publication of CN108253408A publication Critical patent/CN108253408A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00Combustion apparatus in which the fuel burns essentially without moving
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/10Roasting or cooling tobacco
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H13/00Grates not covered by any of groups F23H1/00-F23H11/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00Devices for conducting smoke or fumes, e.g. flues 

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

Fin Filter Tuber For Clean Coal is counter heats wind furnace for band, including combustion chamber, fin, smoke exhaust pipe and moulded coal bed, smoke exhaust pipe is arranged vertically and outside wall surface full weld connects numerous rectangular fins, fin bottom horizontal edge full weld is connected in the outside wall surface of combustion chamber top surface, combustion chamber cavity radius 1.0m~1.2m, pass through combustion chamber top surface smoke outlet combustion chamber inner cavity and smoke evacuation tube cavity unicom, combustion chamber intracavity space banks up moulded coal bed, moulded coal bed is in circle ring column shape, without apparent gap between adjacent two moulded coal, moulded coal bed annular top surface is close to combustion chamber top surface internal face, it moulded coal bed medial surface internal diameter 200mm~300mm and is extended downwardly on face in smoke exhaust pipe internal face, lateral surface and internal face of combustion chamber distance 100mm~150mm, space of planes is ignition substance laydown area on the inside of moulded coal bed.The present invention can be used in intensive flue-cured tobacco and scattered leaf hot blast stove for flue-cured tobacco.Invention disposably is coaling, and economizes on coal 25%, can be close to process curve and be generated hot wind, combustion fan temperature<38℃.

Description

Fin Filter Tuber For Clean Coal is counter heats wind furnace for band
Technical field
The present invention relates to one kind to have the skills such as open fire reverse combustion, high temperature isolation, combustion fan start and stop control accurate combustion heat supplying The band fin Filter Tuber For Clean Coal of art feature is counter to heat wind furnace, burns suitable for agriculture rural area field intensive flue-cured tobacco and scattered leaf flue-cured tobacco hot air chamber Heating plant uses.
Background technology
Plant the increase of flue-cured tobacco scale and the development of modern tobacco agriculture per family with China tobacco grower, dense drying is in the whole nation In the range of obtained Rapid Popularization application.For 2012, the whole nation has dense tobacco flue-curing house about 1,200,000.According to statistics, it is more next More dense tobacco flue-curing houses use the continuous tunnel furnace combustion heat supplying that principle is just being burnt based on dying fire.Tunnel hot-blast stove is simple in structure, at low cost, It can disposably coaling, i.e., disposably be packed into 800~1000 cylinder moulded coals, 5~6 days baking heat supply needs can be met, do not influenced Tobacco grower's night's rest especially meets current each cigarette district hired laborer hardly possible and the situations needs such as labor cost height.
Continuous tunnel furnace furnace chamber includes top vault area and bottom cuboid area, vault area bottom surface and cuboid area top surface weight It closes, cuboid area is included close to the rectangular-shape ignition zone of left end wall and close to the rectangular-shape moulded coal bed area of right end wall, coal bed Full cylinder moulded coal is folded in area, and pyrophoric fuel is stacked in ignition zone, and ignition zone is connected with vault area.Continuous tunnel furnace fires in a manner that dying fire is just burnt Burn heat supply.Investigation display:Combustion zone is reversely flowed backward to close to combustion fan, high-temperature furnace gas in combustion fan housing, is caused combustion-supporting Wind turbine high temperature damage rate is up to 39%.Practice have shown that:Under combustion fan coil decreasing insulating causes outlet air ability permanent Drop, ignition zone partial air bypass flow to vault area, and partial air is short-circuited to by gap midway bypass between coal bed zone type coal Vault area in addition the combustion air for flowing into combustion zone is discharged in the form of CO, causes combustion air utilization rate not high, tobacco flue-curing house temperature It is low go out 2 DEG C~8 DEG C of baking process set temperature, it is impossible to meet big moderate heat tobacco flue-curing heat supply needs, reduce Flue-cured tobacco Quality;Vault Area is detained CO concentration height, detonation casualty accident easily occurs;High-temperature furnace gas is flow backwards, hot blast temperature does not catch up with baking process setting temperature Degree, in addition the flue gas CO concentration discharged from smoke outlet is high, the thermal efficiency is down to 35%~50%.
It is secure, inexpensive, economical that good combustion heat supplying performance of control, safety, saving of work and time, Flue-cured tobacco Quality are toasted in exploitation The band fin Filter Tuber For Clean Coal of high-efficient energy-saving environment friendly is counter to heat wind furnace, can meet China's tobacco modulation industry energy-saving emission reduction situation need Will, and then promote tobacco business sustainable development.
Invention content
In order to which continuous tunnel furnace is overcome high-temperature furnace gas reverse flow scaling loss combustion fan, combustion air to be caused to utilize because dying fire is just being burnt The shortcomings such as low with the thermal efficiency that rate is low, hot blast temperature does not catch up with baking process set temperature, easy detonation is hurted sb.'s feelings, present invention design are a kind of With technical characteristics such as open fire reverse combustion, high temperature isolation, combustion fan start and stop control accurate combustion heat supplyings, meet China's tobacco business Saving of work and time, safety economy are high-quality, the band fin Filter Tuber For Clean Coal of high-efficient energy-saving environment friendly intensive flue-cured tobacco needs is counter heats wind furnace.
Fin Filter Tuber For Clean Coal is counter heats wind furnace for band, and mainly including combustion chamber, fin, smoke exhaust pipe and moulded coal bed, smoke exhaust pipe is perpendicular The corrosion resistant metal pipe directly arranged, smoke exhaust pipe outside wall surface full weld connect numerous rectangular-shaped fins, and fin is with smoke exhaust pipe central shaft It is distributed centered on line along the outside homogeneous radiation of radial direction, fin thickness is 0.1mm~1mm, and vertical edge is outside smoke exhaust pipe in fin On wall surface and with smoke exhaust pipe centerline axis parallel, outer vertical edge faces upward in sidewall of combustion chamber on extended surface, fin bottom horizontal edge full weld Be connected in the outside wall surface of combustion chamber top surface, combustion chamber is barrel-shaped in 180 ° of arrangements of standing upside down, level ground and cylindrical lateral wall face with Top surface surrounds combustion chamber inner cavity, the high 1.0m~1.2m in combustion chamber inner cavity, internal diameter 2.0m~2.4m, and combustion chamber end face center opens up circle Shape smoke outlet, smoke outlet circumference are connected with smoke exhaust pipe bottom face circumference full weld, combustion chamber central axis and smoke exhaust pipe central axis It overlaps, combustion chamber intracavity space banks up moulded coal bed, and moulded coal bed is in circle ring column shape, without apparent between adjacent two moulded coal in moulded coal bed Gap, moulded coal bed annular top surface are close to combustion chamber top surface internal face, moulded coal bed medial surface internal diameter 200mm~300mm and are discharging fume Inside pipe wall is downwards on extended surface, and lateral surface and combustion chamber intracavity sidewall identity distance are from for 100mm~150mm, moulded coal bed medial surface Space is igniting ignition substance laydown area.
Agriculture rural area field tobacco modulation intensive flue-cured tobacco and scattered leaf hot blast stove for flue-cured tobacco, can be used the present invention.
Invention operation is comfortable, and economy, energy conservation and environmental protection and social benefit are notable.Using showing:It is disposable to coaling and continuous tunnel furnace It compares, flue gas CO discharges reduce by 75%, economize on coal 25%;It can be close to baking process curve generation intensive flue-cured tobacco hot wind;Combustion air Casing temperature is consistently lower than 38 DEG C, no high temperature scaling loss, and combustion fan outlet air is stable, undamped.
Description of the drawings
Fig. 1, Fig. 2 and Fig. 3 are respectively that the band anti-vertical partial sectional view of wind furnace, vertical view and the level of heating of fin Filter Tuber For Clean Coal is cutd open View.In Fig. 1~Fig. 3,1 is combustion chamber, and 2 be fin, and 3 be smoke exhaust pipe, and 4 be moulded coal bed, and 5 be fire door.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in 1~attached drawing of attached drawing 3, fin Filter Tuber For Clean Coal is counter heats wind furnace for band, mainly includes combustion chamber 1, fin 2, smoke evacuation Pipe 3 and moulded coal bed 4.
Smoke exhaust pipe 3 is the corrosion resistant metal pipe arranged vertically.3 outside wall surface full weld of smoke exhaust pipe connects numerous rectangular-shaped fins 2, fin 2 is distributed centered on 3 central axis of smoke exhaust pipe along the outside homogeneous radiation of radial direction, 2 thickness of fin for 0.1mm~ 1mm, in fin 2 vertical edge in 3 outside wall surface of smoke exhaust pipe and with 3 centerline axis parallel of smoke exhaust pipe, outer vertical edge is in 1 side wall surface of combustion chamber It upwardly extends on face, 2 bottom horizontal edge full weld of fin is connected in 1 top surface outside wall surface of combustion chamber.2 bottom horizontal edge of fin is perpendicular to smoke exhaust pipe 3 central axis.It is igniting ignition substance laydown area that 3 internal face of smoke exhaust pipe, which extends downwardly 1 intracavity space of combustion chamber surrounded,.
In standing upside down, 180 ° of arrangements are barrel-shaped, and level ground and cylindrical lateral wall face and top surface are surrounded in combustion chamber 1 for combustion chamber 1 Chamber, the high 1.0m~1.2m in 1 inner cavity of combustion chamber, radius 1.0m~1.2m, 1 end face center of combustion chamber open up round smoke outlet, smoke evacuation Mouth circumference is connected with 3 bottom face circumference full weld of smoke exhaust pipe, and 1 central axis of combustion chamber and 3 central axis of smoke exhaust pipe overlap.
Ground and 1 side wall surface of combustion chamber and 1 top surface of combustion chamber surround 1 inner cavity of combustion chamber.1 intracavity space of combustion chamber is banked up Moulded coal bed 4, moulded coal bed are in circle ring column shape, and without apparent gap between adjacent two moulded coal in moulded coal bed, moulded coal bed annular top surface is tight Combustion chamber top surface internal face is pasted, moulded coal bed medial surface internal diameter 200mm~300mm and is extended downwardly on face in smoke exhaust pipe internal face, Lateral surface and combustion chamber intracavity sidewall identity distance are from for 100mm~150mm.3 internal face of smoke exhaust pipe extends downwardly the combustion chamber 1 surrounded Intracavity space is space of planes on the inside of moulded coal bed, and moulded coal bed inside space of planes is igniting ignition substance laydown area.
Combustion chamber 1 can be brick type Refractory brick wall, which is built by laying bricks or stones by thin refractory brick blocks high temperature clay bonding It forms, combustion chamber 1 can also be monoblock type refractory casting structure.1 outside wall surface of combustion chamber can lay 3mm~5mm thickness metal-backs Body, to reduce destruction of the 1 high-temperature expansion thermal stress of combustion chamber to fireproof construction leakproofness.Combustion chamber 1 is in barrel-shaped, 180 ° of handstand Arrangement, is made of circular ring shape top surface and cylindrical sides, and cylindrical sides are perpendicular to the ground, and circular ring shape top surface is parallel to the ground, 1 end face center of combustion chamber opens up round smoke outlet.The crown wall and side wall of combustion chamber 1, side wall and ground are close by high temperature clay Envelope is fixedly connected.Crown wall and side wall flame retardant coating thickness range are in 40mm~60mm.
1 side wall of combustion chamber along the circumferential direction uniformly opens up fire door 5, and 5 center of fire door opens up combustion air inlet port.By burning 1 lumen centers of room are followed successively by igniting ignition substance laydown area, 4 stacking area of moulded coal bed, static pressure area outward.
1 inner cavity of combustion chamber is not provided with traditional fire bars, 4 total weight of ground supports moulded coal bed.Without bright between adjacent two moulded coal Aobvious gap, 4 medial surface of moulded coal bed are extended downwardly in 3 internal face of smoke exhaust pipe on face, and 3 internal face of smoke exhaust pipe extends downwardly face and surrounds 1 intracavity space of combustion chamber for igniting ignition substance laydown area.4 gas channel of moulded coal bed is in outside homogeneous radiation shape, central shaft Line is parallel with ground.It is close to 1 inner wall top surface of combustion chamber and in same level in 4 top surface of moulded coal bed.
Combustion air all uniformly flows into each gas channel of 4 stacking area of moulded coal bed, along 1 cavity radius direction of combustion chamber, to Interior flows into combustion face and all become CO2It is discharged with flue gas from smoke outlet along smoke exhaust pipe 3, combustion air utilization rate reaches 100%. Combustion air first passes through the combustion air inlet port of fire door 5 under combustion fan driving effect, subsequently enters static pressure area, then entirely Portion uniformly flows into 4 each gas channel of moulded coal bed, then along 1 cavity radius direction of combustion chamber horizontal through 4 stacking area of moulded coal bed, into Enter to light a fire ignition substance laydown area, is most discharged afterwards through smoke outlet along smoke exhaust pipe 3.Vehement red moulded coal ignites first to be fired along air-flow direction Burning face upstream moulded coal adjacent thereto, combustion front are displaced outwardly again along the radial direction of 1 inner cavity of combustion chamber.
During using the present invention, fire door 5 is first turned on, work of coalingging (by taking height 1.6m as an example) bends over to enter burning from fire door 5 1 inner cavity of room, since 3 internal face of smoke exhaust pipe extend downwardly face along 1 cavity radius direction of combustion chamber outward stacked coal, in moulded coal 4 stacking area heap exoergics of bed meet the moulded coal of 5~6 days baking combustion heat supplying needs.4 stacking area of moulded coal bed fills up the type of moulded coal composition The moulded coal bed 4 of coal composition so that without apparent gap between adjacent two moulded coal in left and right.It is first piled in igniting ignition substance laydown area vehement Red moulded coal (positive burning), then stacks moulded coal composing type coal bed 4, turns off fire door 5.Combustion fan air outlet is stretched into fire door 5 The heart opens up combustion air inlet port, and combustion fan power cord is accessed in flue-cured tobacco controller, and combustion air first flows into static pressure area, then entirely Portion uniformly flows into 4 each gas channel of moulded coal bed, then along 1 cavity radius direction of combustion chamber horizontal through 4 stacking area of moulded coal bed, into Enter to light a fire ignition substance laydown area.Vehement red moulded coal is ignited first along air-flow direction combustion front upstream moulded coal adjacent thereto, combustion Burning face is displaced outwardly again along the radial direction of 1 inner cavity of combustion chamber.Under combustion fan driving effect, combustion front edge and combustion air Flowing opposite direction slowly moves, i.e., is slowly displaced outwardly along 1 lumen centers radial direction of spontaneous combustion room.After baking, beat Blow-on door 5 shovels out moulded coal cinder with spades.
Inventive structure feature, technical characteristic and the technique effect that brings are described in detail as follows:
Invention have " in fin 2 vertical edge in 3 outside wall surface of smoke exhaust pipe and with 3 centerline axis parallel of smoke exhaust pipe, bottom horizontal edge exists In 1 top surface outside wall surface of combustion chamber " structure feature.Full weld connects numerous fins 2,2 edge of fin in 3 outside wall surface of smoke exhaust pipe of the present invention 3 outside wall surface of smoke exhaust pipe in outward it is radial be uniformly distributed, 2 bottom horizontal edge of fin perpendicular to smoke exhaust pipe 3 and with 1 top surface full weld of combustion chamber Connection, the 2 outer vertical edge of fin far from smoke exhaust pipe 3 are upwardly extended in 1 side wall surface of combustion chamber on face.Compared to continuous tunnel furnace, work as air-flow From tobacco flue-curing house top along 3 wall surface of smoke exhaust pipe impact 1 top wall surface of combustion chamber downwards when, fin 2 is in along 3 outside wall surface of smoke exhaust pipe It is radial outward to be uniformly distributed, it may be such that air-flow more impacts downwards 1 top surface of combustion chamber in an orderly manner, enhance vertical impact formula Air-wall surface heat convection;Fin 2 has the function of that enhancing smoke exhaust pipe 3 radiates, and prolongs the service life simultaneously.
Structure feature of the invention with " being in circle ring column shape moulded coal bed 4 ".Moulded coal bed 4 of the present invention is in circle ring column shape, is pushed up Face in circular and be close to 1 inner cavity top surface of combustion chamber, bottom surface in circular and on level ground, medial surface it is cylindrical and 3 internal face of smoke exhaust pipe is extended downwardly on face, lateral surface it is cylindrical and from 1 intracavity sidewall identity distance of combustion chamber from for 100mm~ 150mm.Along the circumferential direction even partition is the arc length fan-shaped cylinder such as several to moulded coal bed 4, and it is small-sized that the present invention is equivalent to several The effect of reverse burning furnace parallel connection.These small-sized reverse burning furnaces share a discharge flue, igniting ignition zone and static pressure area.With continuous tunnel furnace phase Than expanding moulded coal and stacking twice or so of space, combustion heat supplying can meet two standard dense tobacco flue-curing houses and use, and can reduce heat Wind furnace construction cost.
Invention has " open fire reverse combustion " technical characteristic.Combustion air of the present invention flows successively through static pressure area, moulded coal bed 4 is banked up Area, igniting ignition substance laydown area.The combustion air of combustion fan driving enters the static pressure area in combustion chamber 1, subsequently into moulded coal 4 stacking areas of bed.Static pressure area closed performance is good, and combustion air can all evenly flow into 4 each air-flow of moulded coal bed and lead in static pressure area Road, and moulded coal bed 4 is flowed uniformly through in a manner of horizontal piston stream.Vehement red moulded coal ignites it with adjacent moulded coal and forms burning Face, combustion front are slowly displaced outwardly along 1 lumen centers radial direction of combustion chamber, combustion front moving direction and combustion air flowing side To on the contrary, realizing open fire reverse combustion heat supply.Combustion front along 1 lumen centers radial direction of combustion chamber be displaced outwardly when, constantly preheat What is contacted flows direction upstream moulded coal along combustion air, and the carbonization gas of the pre- thermosetting of moulded coal is with combustion air to burning 1 cavity radius direction of room is inwardly flowed, and subsequently enters combustion front and completely burned reaction occurs.Leave the high temperature CO of combustion front2 There is no high-temperature coke to contact during inwardly flowing to smoke exhaust pipe 3 along 1 cavity radius direction of combustion chamber, i.e., cannot generate CO, smoke evacuation is with CO in this way2Based on.Inlet point fire after flue gas level is flowed through along combustion air flowing direction combustion zone downstream moulded coal slag The upper space of ignition substance laydown area is finally discharged from smoke outlet along smoke exhaust pipe 3.Light a fire ignition substance laydown area upper space without CO gases are detained, and prevent detonation wounding event in stove and occur.Smoke evacuation is without the loss of energy in CO, and combustion heat release amount reaches maximum, burning Thermal discharge and combustion air flow are directly proportional, improve the thermal efficiency, are also created for combustion air flow control accurate hot blast temperature Advantage.
Invention has " combustion fan start and stop control accurate combustion heat supplying " technical characteristic.The invention mainly comprises along combustion-supporting sky The static pressure area that flow of air direction is arranged in order, 4 stacking area of moulded coal bed, ignition substance laydown area of lighting a fire.4 stacking area of moulded coal bed banks up crowd Many types of coal, 4 each gas channel of moulded coal bed, which corresponds to, to be connected, without apparent gap between adjacent moulded coal.It is unburned low by certain length Under warm New type coal partition effect, for combustion fan always in normal temperature environment, combustion fan shell temperature is consistently lower than 38 DEG C, combustion-supporting Wind turbine insulation performance is protected, combustion fan outlet air maintain always it is specified go out wind levels.It is opened up by 5 center of fire door combustion-supporting The combustion air that air inlet port enters static pressure area all uniformly flows into 4 each gas channel of moulded coal bed.Flow into the combustion-supporting of moulded coal bed 4 Air all flows to combustion front with piston-like mode of jet horizontal proliferation.Combustion air into combustion zone all becomes CO2 Discharge.Combustion air does not bypass short-circuit loss and discharges CO2, Actual combustion heat release is consistently equal to combustion fan nominal air delivery pair The maximum combustion heat release answered realizes combustion fan start and stop control accurate combustion heat supplying, and this accuracy is reliable and stable, no It can be different due to people Yin Shiyin ignition temperatures difference.
Invention has " high temperature isolation " technical characteristic.Combustion fan of the present invention is in 1 outer wall surface side of combustion chamber, high temperature combustion zone 4 stacking area of moulded coal bed of 1 inner cavity of combustion chamber is always positioned at, there is the unburned of certain length between combustion zone and combustion fan always Every so that combustion fan always in low-temperature condition, combustion fan period high-temperature furnace gas out of service is difficult to wear low form coal facies It crosses certain length low temperature moulded coal and reversely flows backwards contact scaling loss combustion fan coil heat-insulating property, without diligent monitoring combustion fan fortune Row, combustion fan outlet air ability is secure, and air output is constant not to be declined, and solves combustion fan high temperature existing for continuous tunnel furnace and burns Damage, combustion fan air output permanently decline and influence Flue-cured tobacco Quality problem.
Agriculture rural area field tobacco modulation intensive flue-cured tobacco and scattered leaf hot blast stove for flue-cured tobacco, can be used the present invention.
Invention operation is comfortable, and economy, energy conservation and environmental protection and social benefit are notable.Using showing:It is disposable to coaling and continuous tunnel furnace It compares, flue gas CO discharges reduce by 75%, economize on coal 25%;It can be close to baking process curve generation intensive flue-cured tobacco hot wind;Combustion air Casing temperature is consistently lower than 38 DEG C, no high temperature scaling loss, and combustion fan outlet air is stable, undamped.

Claims (1)

1. fin Filter Tuber For Clean Coal is counter heats wind furnace for band, mainly including combustion chamber, fin, smoke exhaust pipe and moulded coal bed, it is characterised in that:Row Smoke pipe is the corrosion resistant metal pipe arranged vertically, and smoke exhaust pipe outside wall surface full weld connects numerous rectangular-shaped fins, and fin is to discharge fume It is distributed centered on tube hub axis along the outside homogeneous radiation of radial direction, fin thickness is 0.1mm~1mm, and vertical edge exists in fin In smoke exhaust pipe outside wall surface and with smoke exhaust pipe centerline axis parallel, outer vertical edge faces upward in sidewall of combustion chamber on extended surface, fin bottom Horizontal edge full weld is connected in the outside wall surface of combustion chamber top surface, and combustion chamber is barrel-shaped in 180 ° of arrangements of standing upside down, level ground and cylindrical shape Side wall surface and top surface surround combustion chamber inner cavity, the high 1.0m~1.2m in combustion chamber inner cavity, internal diameter 2.0m~2.4m, in the top surface of combustion chamber The heart opens up round smoke outlet, and smoke outlet circumference is connected with smoke exhaust pipe bottom face circumference full weld, combustion chamber central axis and smoke exhaust pipe Central axis overlaps, and combustion chamber intracavity space banks up moulded coal bed, and moulded coal bed is in circle ring column shape, in moulded coal bed adjacent two moulded coal it Between without apparent gap, moulded coal bed annular top surface is close to combustion chamber top surface internal face, moulded coal bed medial surface internal diameter 200mm~300mm And extended downwardly on face in smoke exhaust pipe internal face, lateral surface and combustion chamber intracavity sidewall identity distance are from for 100mm~150mm, moulded coal Bed inside space of planes is igniting ignition substance laydown area.
CN201810178703.1A 2018-03-05 2018-03-05 Clean coal back-burning hot-blast stove with fins Active CN108253408B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810178703.1A CN108253408B (en) 2018-03-05 2018-03-05 Clean coal back-burning hot-blast stove with fins

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Application Number Priority Date Filing Date Title
CN201810178703.1A CN108253408B (en) 2018-03-05 2018-03-05 Clean coal back-burning hot-blast stove with fins

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CN108253408A true CN108253408A (en) 2018-07-06
CN108253408B CN108253408B (en) 2022-12-06

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2794203Y (en) * 2004-10-25 2006-07-12 叶继宗 Square honeycomb briquette vertical oven curing barn
CN101056967A (en) * 2004-10-31 2007-10-17 秦才东 Biomass fuel block and the device and method for its burning
CN101424449A (en) * 2008-12-05 2009-05-06 武立波 Fin type hot-air stove
KR20130134769A (en) * 2012-05-31 2013-12-10 안상일 A fire grate for combustion apparatus
CN105276806A (en) * 2015-11-19 2016-01-27 湖南省烟草公司长沙市公司宁乡县分公司 High-temperature hot-blast stove for dense tobacco curing barn
CN206025183U (en) * 2016-08-31 2017-03-22 湖南省烟草公司长沙市公司宁乡县分公司 Anti - heating stove that burns of honeycomb egg -type briquet naked light
CN106642675A (en) * 2017-02-27 2017-05-10 中南大学 Reverse burning tunnel furnace for intensive flue-cured tobacco

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2794203Y (en) * 2004-10-25 2006-07-12 叶继宗 Square honeycomb briquette vertical oven curing barn
CN101056967A (en) * 2004-10-31 2007-10-17 秦才东 Biomass fuel block and the device and method for its burning
CN101424449A (en) * 2008-12-05 2009-05-06 武立波 Fin type hot-air stove
KR20130134769A (en) * 2012-05-31 2013-12-10 안상일 A fire grate for combustion apparatus
CN105276806A (en) * 2015-11-19 2016-01-27 湖南省烟草公司长沙市公司宁乡县分公司 High-temperature hot-blast stove for dense tobacco curing barn
CN206025183U (en) * 2016-08-31 2017-03-22 湖南省烟草公司长沙市公司宁乡县分公司 Anti - heating stove that burns of honeycomb egg -type briquet naked light
CN106642675A (en) * 2017-02-27 2017-05-10 中南大学 Reverse burning tunnel furnace for intensive flue-cured tobacco

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