CN206025183U - Anti - heating stove that burns of honeycomb egg -type briquet naked light - Google Patents

Abstract

Anti - heating stove that burns of honeycomb egg -type briquet naked light, including the furnace roof, the bosh, the fire bars, interior furnace gate and outer furnace gate, the high 1.2m~1.5m of cask form bosh inner chamber, internal diameter 0.9m~1.1m, 0.2m the horizontal fixed fire bar of the high department of~0.35m, the fire bars top is for piling coal field, the below is the static pressure district, the bosh lateral wall set up one with equal height of the bosh lateral wall wide operation mouth of 0.6m~0.8m just, operation passageway inner chamber through operation mouthful bosh inner chamber and inversion is linked together, static pressure district lateral wall breach is plugged up to interior furnace gate, outer furnace gate sets up the secondary ventilation mouth. Coal bed top surface center is filled in to the fritter bituminous coal that will just fire, and whole air are the plug flow form entering firing level of living and take place complete combustion, and the naked light is turned over and is burnt, accomplishes heat supply in 6~7 days. The tobacco industry flue -cured tobacco hot -blast furnace can use utility model. Disposable comfortable the coalingging of hot -blast furnace, CO emission reduction 75% economizes on coal 25%, hugs closely the baking curve heat supply, does not fall wen chaowen and burns the fan, can use local honeycomb egg -type briquet.

Description

Beehive coal ball open fire reverse combustion heating stove

Technical field

Utility model be related to it is a kind of based on the anti-beehive coal ball open fire reverse combustion heating stove for burning principle of honeycomb anchracite ball flaming, Hot blast place is produced suitable for agriculture rural area field Nicotiana tabacum L. Processing farage industry intensive flue-cured tobacco combustion heat supplying to use.

Background technology

According to incompletely statistics, National Tobacco Leaves cultivated area in 2012 reaches 21,000,000 mu or so, estimates by 15～20 mus/ Calculate, the whole nation has dense tobacco flue-curing house about 1,200,000.By taking 2.5 tons of Nicotiana tabacum L. (dry weather) in the middle part of bulk curing barn fills a room as an example, combustion Burn coextensive continuous 5～6 days before and after the hot blast time for being thermally generated.These dense tobacco flue-curing house hot-blast furnace high efficient energy-conserving and environment-protective, furnace temperature automatic controls Property good, saving of labor's safety and comfort, be to improve dry tobacco leaf quality, reduce the key of fuel and recruitment cost.

Intensive flue-cured tobacco air stove at present is divided into two kinds of Loose-coal stove and continuous tunnel furnace.Loose-coal stove vertical structure, simple structure, throwing Money is few, uses scattered coal.Loose-coal stove inner chamber is wrapped up by seamless metal shell, and it is controllable that furnace temperature is adjustable, it is easy to is banked up a fire overnight and is turned yellow Phase temperature control.Loose-coal stove combustion space is little, and burner hearth is divided into upper and lower two parts by fire bars, and scattered coal is deposited on fire bars and burns, Belong to dying fire and just burning principle, requirement is economized on coal with " sparing no effort to coal, bog-head coal bed and diligent scarfing cinder " principle, need duty to see fire.Dry a room Nicotiana tabacum L. Need as many as coal up to 20 times, particularly fixation stage and 2～4 hours scapus phases once, badly influence tobacco grower's night's rest and the Two days production capacity.Loose-coal stove is long because of the door opened time, and fire door thermal radiation loss is big, Thermal Efficiency of Hot Blast Stoves as little as 45%.It is such as attached Shown in Fig. 6, continuous tunnel furnace burner hearth is coated with high temperature clay by the concavo-convex matching of 40mm～60mm thickness highiy refractory bricks and surrounds, and burner hearth cavity is in one Font, is not provided with fire bars, and burner hearth is both combustor and dust collection chamber, and burner hearth two ends are each external relative one Cast iron fire door.Continuous tunnel furnace simple structure, low cost.Burner hearth cavity size, coal of banking up Ball height 0.6m, can disposably load the high domestic life beehive coal ball of 800～1000 75mm, can meet a room cigarette and dry for 5～6 days Roasting heat supply needs, and period does not affect tobacco grower to rest, but a people passs coal briquette, a people (by taking height 1.6m as an example) outside and contacts to earth when coalingging Pedal full posture regression to bank up coal briquette after crawling into furnace chamber in bent lower limb, comfort level of coalingging is poor.First by heap on the inside of exhaust opening fire door when coalingging Put coal briquette, coal briquette hole device to hole as far as possible, bank up coal briquette layer height 0.6m, and regression is banked up 1.2m length, vacates 0.2m spaces to place Kindling.The combustion air part that blower fan is blasted flows into the coal bed inter-air space to combustion front, discharges heat, generates high temperature CO₂Gas Body, CO₂Gas is moved along contacting coke or coal cinder is reduced into CO, further reduces combustion heat release, shows furnace temperature and rises not Up, fall 2 DEG C～8 DEG C of temperature (hot blast temperature is less than baking curve).Fire door surrounds high temperature combustion zone, up to 180 DEG C of fire door temperature ～280 DEG C, affected, shell temperature is raised, and then reduced blower fan draft capacity even to burn by hyperthermia radiation and high-temperature furnace gas refluence Ruin blower fan.To reduce furnace temperature superelevation, falling gentle blower fan stalling to dry tobacco leaf qualitative effects, changing yellow stage and the diligent prison of fixation stage operative employee Pipe becomes one of tobacco flue-curing management role.Continuous tunnel furnace solves the problems, such as that Loose-coal stove spares no effort to coal deashing, but brings heat transfer burning new Problem.

Development structure is simple, and low cost disposably comfortably coalings to adapt to rural laborer's form needs in short supply, furnace chamber Rationally, the intensive flue-cured tobacco house hot-air stove of energy-saving and emission-reduction safety and comfort can meet current construction amphitypy to flowing heat transfer burning tissues Society need, promotes China's tobacco business sustainable development.

Utility model content

In order to overcome Loose-coal stove dying fire just burning and fire door thermal radiation loss is big, need duty to see that fire spares no effort to coal deashing, defend safely The problems such as carded sliver part difference, the easy overtemperature of continuous tunnel furnace is out of control easily to be fallen Wen Yi and burns blower fan, and dying fire is just burning and fire door thermal radiation loss is big, dress The shortcomings of coal operation comfort difference, utility model devise it is a kind of have " high and big vertical furnace chamber, coaling passage and deashing it is logical Road unites two into one, high operating walk way, short interior fire door, closed static pressure area and high light-duty outer fire door " architectural feature, it is " bright Fiery anti-burning, the isolation of furnace temperature auto-control, high temperature " technical characteristic, " deashing of disposably coalingging；Coalingging, it is grey comfortable to unload；Economize on coal, flue gas Low CO discharges；It is controllable that hot blast temperature is adjustable, is close to baking process curve heat supply, does not fall warm overtemperature；Do not burn blower fan " etc. beneficial effect Beehive coal ball open fire reverse combustion heating stove.

Beehive coal ball open fire reverse combustion heating stove, mainly including furnace roof, bosh, fire bars, interior fire door and outer fire door, furnace roof is in circle Platform tubular, height 100mm～200mm, furnace roof bottom face circumference and the connection of bosh top end face circumference full weld, bosh inner chamber is in upright Barrel-shaped, furnace abdominal height 1.2m～1.5m, internal diameter 0.9m～1.1m, bosh inner chamber highly locate level from base plate 200mm～350mm Fixed grate, above fire bars for coal piling area, lower section be static pressure area, above fire bars bosh inwall stick height for 300mm～ The fire brick layer of 500mm, thickness for 30mm～50mm, bosh side wall open up a square gathering hole, operation open height and bosh Sidewall Height is equal, width 0.6m～0.8m, and two side of gathering hole is each perpendicular to bosh base plate, the following gathering hole edge of fire bars with Connection that interior fire door is seamless, interior fire door are in square plate shape, interior fire door height and static pressure area is highly equal, width and gathering hole width phase Deng, bosh inner chamber by gathering hole with square tube shape and inverted operating walk way is connected, operating walk way left port and gathering hole Overlap and full weld connection, operating walk way right output port is sealed by the flame-retardant fibre board that outer fire door is sticked, edema with the heart involved in outer fire door middle and lower part It is flat that internal diameter 40mm～60mm secondary ventilation mouths are set.

Nicotiana tabacum L. Processing farage industry, tobacco planting processing base and tobacco grower cooperative society dense tobacco flue-curing house and loose-leaf curing life With honeycomb anchracite ball combustion heat supplying device, hot air chamber or air stove, utility model can be used.

Utility model operation is more comfortable, and significantly, security performance is improved energy conservation and environmental protection benefit.Utility model is disposably coaling clearly Ash, coalings comfortable, and igniting is ignited simply, and deashing is easy；Compare with conventional tunnel stove, utility model flue gas CO discharges are reduced 75%, save coal-fired 25%；Blower fan start-stop is good to hot blast temperature performance of control, can be close to baking process curve and generate hot blast, Nothing falls warm overtemperatute；Blower fan temperature is consistently lower than 38 DEG C, without high temperature burning problems；Content of ashes 50%, calorific value can be used The local anthracite beehive coal ball of 3000kCal/kg～4000kCal/kg.

Description of the drawings

Left views of the Fig. 1 for beehive coal ball open fire reverse combustion heating stove.Forward sights of the Fig. 2 for beehive coal ball open fire reverse combustion heating stove Figure.A-A face sectional views of the Fig. 3 for beehive coal ball open fire reverse combustion heating stove, A-A faces are auxiliary by beehive coal ball open fire reverse combustion heating stove Help vent central axis.Top views of the Fig. 4 for beehive coal ball open fire reverse combustion heating stove.Fig. 5 is supplied for beehive coal ball open fire reverse combustion The B-B faces sectional view of hot stove, B-B faces pass through beehive coal ball open fire reverse combustion heating stove bosh central axis.In Fig. 1～Fig. 5,1 is Furnace roof, 2 is bosh, and 3 is fire bars, and 4 is interior fire door, and 5 is outer fire door, and 51 are auxiliary vent.Fig. 6 is the vertical section view of continuous tunnel furnace Figure.In Fig. 6, arrow represents air current flow direction, and imaginary curve represents combustion front.

Specific embodiment

Below in conjunction with the accompanying drawings utility model is further described.

As shown in 1～accompanying drawing of accompanying drawing 5, beehive coal ball open fire reverse combustion heating stove, mainly include furnace roof 1, bosh 2, fire bars 3, Interior fire door 4 and outer fire door 5.

Furnace roof 1 be in upright round platform tubular, height 100mm～150mm, 2 top end face circumference of 1 bottom face circumference of furnace roof and bosh Full weld connects, and top end face center hole is from kiln gas outlet.1 inner chamber of furnace roof is burnt requisite space completely for pyrophoric fuel, Igniting is ignited, and consumption fuel quantity is few, and 1 cavity heights of furnace roof are reduced to 100mm～150mm.1 internal face of furnace roof is heat-reflecting surface, is had Help maintain coal bed top surface ignition temperature.2 inner chamber of bosh is in upright barrel-shaped, 2 cavity heights 1.2m of bosh～1.5m, internal diameter 0.9m～1.1m.2 cavity heights 1.2m of bosh～1.5m be in the case where the high 2.5m of existing hot air chamber crown wall is limited, deduct mixing chamber and The maximum height that can be utilized after spatial altitude shared by heat exchange single tube, while considering to fill the balance result of coal briquettes as many as possible.Stove 2 inner chamber internal diameter 0.9m of abdomen～1.1m, one considers hot air chamber can be using space width 1.4m, and the two considers operative employee in stove The activity of 2 inner chamber of abdomen freely, can meet requirement of comfortably coalingging, and three is by the uneven effect in temperature field caused by fixed bed big cross section Should, the negative effect such as wall effect and funneling effect be reduced to minimum level.2 inner chamber of bosh is from base plate 200mm～350mm height Locate horizontal fixed grate 3.2 cavity region of bosh above fire bars 3 is coal piling area, lower section is static pressure area.Static pressure area is as collection ash Area.Most of lime-ash is shoveled out from above fire bars 3, and the grey quantity of slag for leaking through fire bars 3 is little, and the high 200mm～350mm of collection gray area can contain lower stove The leakage ash of bar 3, and can smoothly be shoveled out with spades.Collection gray area limitation in height can increase coal piling area height in 200mm～350mm, So as to increase disposable coal capacity.3 material of fire bars is cast iron materials, for a long time using indeformable under hot environment.Above fire bars 3 2 inwall of bosh sticks 300mm～500mm height, 30mm～50mm thickness fire brick layers.Within 3 top 300mm of fire bars～500mm 2 inwall of bosh is subjected to spades mechanical impact probability greatly, sticks thickness 30mm～60mm refractory brick to extend air stove service life.

2 side wall of bosh opens up a gathering hole, and operation open height and 2 Sidewall Height of bosh are equal, and two side of gathering hole is equal Perpendicular to 2 base plate of bosh.Gathering hole top margin and base are straightway, two sides and are vertical line segment.Fire bars gathering hole below 3 Edge and the 4 seamless connection of interior fire door.Interior fire door 4 is in square plate shape, 4 height of interior fire door and static pressure area is highly equal, width and behaviour Make mouth width equal.Interior fire door 4 can block static pressure area side wall breach so that static pressure area is not connected with operating walk way inner chamber.Interior stove 4 effect of door is to form static pressure area, it is ensured that static pressure area static air pressure and air penetration ability so that the air that blower fan is sent into can be all Coal bed being entered by fire bars 3, inflow exhaust opening directly being bypassed without air, air all travels up to bosh with piston stream mode 2 top combustion faces, it is ensured that air effective rate of utilization reaches 100%.Interior fire door 4 is in square plate shape, more than thickness 50mm, without high temperature resistant Performance requirement, can be processed into by Rhizoma Begoniae Willsonii or clay brick, interior fire door 4 can non-resistance be removed or placed into.2 inner chamber of bosh is by operation Mouthful be connected in square tube shape and inverted operating walk way.Operating walk way left side top margin and base are horizontal line section, both sides While be vertical line segment, operating walk way right side and operating walk way top surface, bottom surface, two sides are vertical.Operating walk way left port Overlap with gathering hole and full weld connection, i.e. operating walk way left side top margin and gathering hole top margin overlap and full weld connection, operation are logical Road left side base and gathering hole base coincident and full weld connection, two side of operating walk way left side and two side of gathering hole difference Overlap and full weld connection.Operating walk way right output port is sealed by the flame-retardant fibre board that light-duty outer fire door 5 is sticked.Gathering hole and operation are logical Road is only used when deashing is coaling.Outer fire door 5 is light-duty fire door, including flame-retardant fibre board and steel plate, flame-retardant fibre board are sticked on On the inside of steel plate, flame-retardant fibre board is in square plate shape, 900 DEG C～1100 DEG C of heatproof, 0.6m～0.8m width.Air stove is placed in hot blast room Use.Operating walk way right side and the positive front wall outside wall surface of hot air chamber are coplanar.Stove operation passage right output port is by 5 fire resisting of outer fire door When fibre board is sealed, 5 metal coverboard of outer fire door is close to the positive front wall outside wall surface of hot air chamber, does not enter in operating walk way, outer to facilitate Fire door 5 is normally filled in and is extracted, i.e., normally-open and shutoff operation passage right output port.Gathering hole width, operating walk way width and 5 flame-retardant fibre board width of outer fire door is equal, is 0.6m～0.8m, and 2 cavity heights of bosh, operation open height, operating walk way are highly It is highly equal with 5 flame-retardant fibre board of outer fire door, it is 1.2m～1.5m.Gathering hole width 0.6m～0.8m, does not only hinder operation Work is coaling ball into coal piling area, and can prevent more heat radiations to operating walk way and outer fire door 5, and then maintains in bosh 2 Chamber combustion high temperature.The horizontally disposed internal diameter 40mm～60mm secondary ventilations mouth 51 in 5 middle and lower part of outer fire door, aids in open fire reverse combustion logical Air port 51 is closed, and secondary ventilation mouth 51 can double as flame-observing hole.

1 inwall of utility model furnace roof, 2 upper half inwall of bosh and inwall of the operating walk way in addition to base plate stick 30mm～50mm Thick integral type refractory casting layer.Metal shell inwall sticks 30mm～50mm thickness castable refractories or refractory brick, can both limit The inhibition that flame retardant coating processed radiates to furnace wall, can avoid thermal-flame directly contact metal shell again and high temperature corruption occurs Erosion, to extend metal shell service life.2 base plate of bosh and operating walk way base plate are patch ground flat board, there is spades and move back and forth Patch thing problem in frictional force damage base plate, bosh 2 region (i.e. static pressure area) temperature of the fire bars below 3 is low in addition, without high temperature scaling loss Potential problem, therefore fire bars 2 inwall of bosh below 3 and operating walk way plate inner wall do not stick refractory brick or refractory casting layer.

Hot blast furnace chamber includes 1 inner chamber of furnace roof, 2 inner chamber of bosh and operating walk way inner chamber.2 inner chamber of bosh be divided into coal piling area and Static pressure area two parts, it is combustion-supporting so as to what is driven by blower fan that static pressure area side wall opens up main ventilation mouth (1～accompanying drawing of accompanying drawing 5 is not indicated) Air is entered.1 inner chamber top end face of furnace roof is exported and is tightly connected for exhaust opening, and exchanger heat gas approach.1 inner chamber bottom of furnace roof Face and 2 inner chamber top end face of bosh overlap, and 2 inner chamber of bosh passes through 0.6m～0.8m width gathering hole and the behaviour opened up on 2 side wall of bosh It is connected as channel lumen, operating walk way inner chamber right output port is sealed by outer fire door 5.

Air stove process and assemble order be：Roll bending cold working goes out furnace roof 1,5 four portions of bosh 2, operating walk way and outer fire door The metal shell of part；Gathering hole is processed in 2 side wall of bosh；Fire bars 3 is processed, then in 2 inner chamber fixed grate 3 of bosh. Uniform welding V-shaped peg on 1 internal face of furnace roof, 2 middle and upper part internal face of bosh and operating walk way internal face, peg depth 20mm～30mm；Uniformly cast aluminum phosphate refractory material in peg region；A small amount of firewood is used, by Free water in refractory lining Slowly separate out with water of constitution, prevent refractory lining from coming off, melt downslide or high temperature spalling and reduction of service life；Under in bosh 2 Portion's inwall patch abdomen refractory brick.1 bottom face circumference of furnace roof and the connection of 2 top end face circumference full weld of bosh, 2 gathering hole of bosh and operation are led to Road left port full weld connection.

During using beehive coal ball open fire reverse combustion heating stove, 3 top lime-ash of fire bars is first emptied, take out interior fire door 4 afterwards, empty stove 3 lower section lime-ash of bar, puts back to fire door 4 in installation positioning.Operative employee in slightly pedal or slightly bend over posture from operating walk way enter bosh 2 in On chamber fire bars 3, beehive coal ball pass from outside stove into.Hole device to hole, coal briquette and coal briquette are made every effort to when 2 inner chamber of bosh banks up beehive coal ball Between big space filled up with broken coal block.As a example by stacking the local smokeless coal honeycomb briquette of the high 75mm domestic of external diameter 110mm, per layer of energy 53～65, coal briquette is stacked, 15～17 layers are stacked, 850～1050 coal briquettes can be put by coal piling area, can meet intensive flue-cured tobacco 6～7 Its baking continuous burning heat supply needs.Heap to top space-time goes out 1～2, gathering hole edge coal briquette, by burning 1～2 piece Bituminous coal fills in top end face center from top vacancy, fills up the top gathering hole edge of coal bed with 1～2 coal briquette and vacates Position.After operative employee exits operating walk way, outer fire door 5 is filled in into operating walk way right output port, seal operation passage right output port is simultaneously pressed Fasten outer fire door 5.Arranging temperature controller humiture time parameter simultaneously makes its startup optimization, start and static pressure area UNICOM and by temperature Air is sent into static pressure area by the blower fan of control device control, blower fan, and air is all flowed up in piston flow shape in coal bed, combustion front Fire bars 3 top surface, long-time naked light backfire stable heating, you can be close to baking process curve are moved to from the top of bosh 2 lentamente 68 DEG C are warming up to upwards, until baking terminates, safe and stable operation 6～7 days completes the burning of changing yellow stage, fixation stage and scapus phase Heat supply task.Whole baking process not over fire door 5, the hyperthermia radiation heat loss that exists and furnace temperature are opened wide without outer fire door 5 in short-term Between reduce problem.Coal piling area lime-ash is first shoveled out during deashing, interior fire door 4 is taken out afterwards and is shoveled out static pressure area lime-ash, finally put back to and dispose Interior fire door 4.

Special circumstances coaling not enough need to when the scapus phase a small amount of coal briquette is added, 2 inner chamber of bosh and operating walk way temperature it is high and Inconvenient ash slag cleaning, now can not deashing directly add coal briquette above the ash bed, be passed through air, bosh from secondary ventilation mouth 51 2 inner chambers carry out the dying fire of short time and are just burning heat supply production hot blast, now it is noted that when blower fan does not run because high-temperature furnace gas leak And scaling loss blower fan problem.Disposable coal capacity can at least tide over changing yellow stage and fixation stage in three stage of tobacco flue-curing, not enough coal briquette Can only add in the scapus phase, because changing yellow stage and fixation stage are had high demands to constant temperature, opening the outer addition of fire door 5 coal briquette can cause in short-term Between furnace temperature reduce problem.Operating walk way inner chamber beyond 2 inner chamber circular arc of bosh is not banked up coal briquette, it is to avoid big fire is fired logical to operation Road, increases hyperthermia radiation corrosion and the heat loss of external fire door 5.

Nicotiana tabacum L. total amount and moisture are loaded according to tobacco flue-curing house, the coal briquette for completing to toast required by task is roughly estimated total Amount.In required beehive coal ball total amount useful load total less than coal piling area beehive coal ball, coal briquette passes through operating walk way and gathering hole one Secondary property is fully enclosed coal piling area, and coal bed top surface is in plane.Coal bed end face center fills in 1～2 block of bituminous coal being just burning, then Bituminous coal slowly ignites the anchracite ball of surrounding.Bituminous coal dust content is low, and after combustion, lime-ash is few, coal briquette gas channel blocking probability It is low, air can be kept unimpeded Zi the flowing that collection gray area is upward through fire bars 3 to combustion zone.Bituminous coal calorific value is high, volatile matters are more, burning Temperature is high, can steadily light the selected anthracite of high ignition point (such as the selected anthracite of Korea), improves igniting and ignites success rate. When using the local coal consumption of living ball of content of ashes up to 50%, the anchracite ball igniting that 1～2 fritter is just being burning can be used instead and drawn Combustion.

During using utility model, dress cigarette room is constant, and hot blast chamber size 1.4m × 1.4m is constant, and temperature controller and control circuit are not Become, combustion fan and circulating fan specification are constant, it is only necessary to change air stove and heat exchanger.

Utility model architectural feature, technical characteristic and the technique effect for bringing are described in detail as follows：

Utility model has " high and big vertical furnace chamber " architectural feature.Hot blast stove for flue-cured tobacco furnace chamber is tall and big, furnace chamber Volume is big, and combustion space effective rate of utilization is high, then can fill more beehive coal balls, such that it is able to reduce baking heat supplying process midway Addition coal number of times, mitigates operative employee's labor intensity.Loose-coal stove is designed by multiple coal principle, and furnace chamber space is little, toasts 2.5 tons Middle part Nicotiana tabacum L. midway coal number of times is up to more than 20 times.As shown in Figure 6, long 1.4m, 0.73m width of continuous tunnel furnace burner hearth, 0.9m are high, stove Thorax volume effective rate of utilization only has 80% or so, can load the local smokeless coal honeycomb briquette of the high 75mm domestic of external diameter 110mm 800～ 1000, needs of disposably coalingging can be met in theory.Actually as the body of heater accumulation of heat occurred in continuous tunnel furnace running is more, Fire door radiant heat loss is big, and flue gas CO discharges are more, and the thermal efficiency is low, and coal consumption is big, and 800～1000 coal briquettes tend not to meet Baking needs, and is exactly that one room middle leaf of fine day is toasted 5～6 days, and as many as coal 1～3 time also want in centre, it is difficult to realize disposable dress Coal target, not to mention rainy day and upper leaf need addition coal briquette number of times halfway when toasting.2 cavity heights of utility model bosh 1.2m～1.5m, internal diameter 0.9m～1.1m, combustion space effective rate of utilization reach 100%, can load the high 75mm of external diameter 110mm The local smokeless coal honeycomb briquette 850～1050 of domestic, can meet needs of disposably coalingging.The disposable coal capacity of utility model slightly surpasses Continuous tunnel furnace coal capacity is crossed, and the thermal efficiency is higher by continuous tunnel furnace 25%, natural energy of disposably coalingging is kept for the longer combustion heat supplying time. Dress cigarette accomplishes one slightly above utility model is used under the conditions of 2.5 tons, rainy day harvesting or upper tobacco leaf without midway deashing coal Secondary property is coaling and completes 6～7 days baking combustion heat supplying tasks.

Utility model has that " vertical furnace chamber, high furnace chamber, coaling passage and deashing passage unites two into one, and operation is logical The architectural features such as high, the high outer fire door 5 of road height ".Loose-coal stove has special coal passage and a deashing passage, coal passage and clear There is a metallic plate to separate between grey passage.Two passage lengths and width dimensions all very littles, operative employee exist at stove external spades station Scattered coal is carefully thrown repeatedly outside stove and take ash.As shown in Figure 6, continuous tunnel furnace coal piling area, collect gray area, channel lumen of coalingging, deashing Channel lumen is unified, and without fire bars, fire door only has 560mm high, and operative employee can only contact to earth to creep and enter furnace chamber, then pedaling full appearance Gesture regression is banked up coal briquette, furthermore width is little, space is little, and highly short, air flow is not smooth, and appearance is to a certain degree felt oppressed sense, coalings Operation is uncomfortable, it is difficult to meet seamless requirement between hole device to hole, two adjacent coal briquettes of same row.Utility model vertical type burner hearth, coal piling Area collection gray area on, eliminate towards coal piling area coaling passage and towards collection gray area deashing passage between public wallboard, Realize and coaling passage and deashing passage is merged into operating walk way, operating walk way cavity heights and 5 height of outer fire door are up to 1.2m In posture turnover furnace chamber of slightly pedaling or slightly bend over ,～1.5m, operative employee can add that thorax in stove is tall and big, air flow is smooth, no Sense of feeling oppressed occurs, operative employee is gone slick in furnace chamber, realization is comfortably coaling, the coal piling such as hole device to hole and little coal briquette gap will Ask easily to meet.

Utility model has " short interior fire door 4 " architectural feature.Loose-coal stove and continuous tunnel furnace do not have interior fire door.In utility model 4 height of fire door only has 0.2m～0.35m, interior fire door 4 and 2 side wall of bosh together, surrounds the good static pressure area of closure, and cut-out is empty Gas bypass flow to the passage of operating walk way.4 top surface of interior fire door extends to 2 top end face of bosh, further can prevent empty in coal bed The flat bypass of air water flow to operating walk way, however it is necessary that bearing coal combustion high temperature action, that is, increases fire resistant heat preserving design, now interior stove Door 4 up to 1.2m～1.5m and heaviness, coaling deashing when interior fire door 4 take out and put back to the operation difficulties such as positioning and increase.In addition, coal bed Interior level bypasses few to the air capacity of operating walk way, is not enough to substantially reduce furnace temperature regulating performance.4 height of fire door in utility model For 0.2m～0.35m, interior fire door 4 can be substituted with ordinary red brick or clay brick, accomplishes low cost, be taken out in addition and put back to operation It is light, and do not lose good furnace temperature regulating performance.

Utility model has " closed static pressure area " architectural feature.Loose-coal stove integrates gray area as static pressure area, what aerator was sent into Air all flows into combustion zone, and closed performance is good.As shown in Figure 6, continuous tunnel furnace static pressure area is in unenclosed construction.Continuous tunnel furnace heap The region as static pressure area that 2～3 floor coal briquette are vacated is vacated when coal is to entrance point fire door, as burner hearth coal piling is to high, the stove to 0.6m Top internal face has become the passage that air by-pass rapidly flows to exhaust opening to the height space of about 130mm between coal bed top surface, i.e., Static pressure area top surface is unlimited.Bosh 2 inner chamber of the utility model fire bars below 3 is static pressure area.Due to 4 side of interior fire door and operation The gap connection of mouth sided seamless, 4 bottom surface of interior fire door and the seamless connection of 2 base plate of bosh, 2 side wall of bosh, base plate and interior fire door 4 are surrounded Static pressure area, the air that static pressure area blower fan is blasted all flow up into coal bed by fire bars 3, i.e. static pressure area closed performance is good.

Utility model architectural feature " high and big vertical furnace chamber " can guarantee that, meets nowadays countryside and work Power market demand.Architectural feature " high and big vertical furnace chamber, coaling passage and deashing passage unite two into one, operating walk way height High, high outer fire door 5 " can guarantee that coalings deashing operation comfortably, and people-oriented to accomplish tobacco flue-curing.Architectural feature " vertical furnace chamber, Short interior fire door 4, closed static pressure area " is the precondition of " flowing heat transfer combustion process is scientific and reasonable in stove ".

Caused by " vertical type furnace chamber, the closing of static pressure area " architectural feature, technical characteristic is " open fire reverse combustion ".Loose-coal stove and Continuous tunnel furnace is based on " dying fire just burns " principle combustion heat supplying.As shown in Figure 6, continuous tunnel furnace from coal bed downstream, ignite by igniting, and blower fan drives Dynamic air flows to coal bed oblique upper direction, burns towards coal bed oblique upper direction and moves, meets dying fire and just burning principle, in combustion The coal bed of burning face oblique upper is subject to high-temperature baking, and carbonization gas, volatile matters are together with high temperature CO₂Gas contact high-temperature coke is reduced life Into CO gases together, flow out coal bed to coal bed updrift side, final Jing exhaust openings scatter and disappear, and the thermal efficiency as little as 50% is left It is right.What is more important, the CO air-flows of discharge have interior heat energy, and combustion heat release amount is reduced, and combustion heat release amount does not reach maximum, cigarette Unstable combustion heat release amount and the air mass flow of participation combustion reaction of directly resulting in of gas CO contents is not directly proportional, and increases and uses air The difficulty of flow auto-control furnace temperature process.Utility model enters static pressure area, static pressure area side wall and bottom by the air that blower fan drives Plate No leakage, air completely extend across the bottom-up Uniform Flow in coal bed of fire bars 3.Whole air flow through coal with piston stream mode Bed, starts igniting from coal bed end face center and ignites, and combustion front is from up to down slowly moved, combustion front moving direction and air flow It is in opposite direction, realize open fire reverse combustion process.The bottom that contact is preheated in high-temp combustion faces down flow process constantly Coal briquette and air, the carbonization gas that coal briquette is formed when preheating enter combustion front and complete combustion reaction occur, and leave the high temperature of combustion front CO₂Do not have high-temperature coke to contact when gas is flowed up, i.e. life does not become reducibility gas CO, and so discharge fume CO₂Gas contains Amount is high, CO gas contents are extremely low, and the thermal efficiency brings up to 75% or so.So, realize combustion heat supplying process energy conservation low stain thing Discharge, what is more important are discharged fume without interior heat-energy losses, and combustion heat release amount reaches maximum, and exothermic maximum amount and air mass flow are into just Than being to create advantage with air mass flow auto-control furnace temperature process.Usually, open fire reverse combustion technology is just for granule Shape, block bituminous coal industrial furnace cleaning combustion purpose are used, and domestic honeycomb coal-firing device uses anthracite, makes honeycomb briquette Ball, and just burning based on dying fire that principle person is in the majority, it is applied to the anthracite Honeycomb coal briquet burner report based on open fire reverse combustion principle Lead extremely rare.

Caused by " vertical furnace chamber, closed static pressure area " architectural feature and " open fire reverse combustion " technical characteristic, technical characteristic is " it is controllable that furnace temperature is adjustable ".How many Combustion of Hot Air Furnace heat releases is proportional to the air mass flow size for participating in combustion reaction.In operating walk way The air that chamber is detained can be bypassed and flow to exhaust opening, and then reduces air effective rate of utilization, reduces air mass flow to combustion heat release amount Regulatory function.4 liang of sides of fire door and fire bars two sides of gathering hole below 3 is seamless connects respectively, interior fire door 4 in utility model Bottom surface and the seamless connection of 2 base plate of bosh, 2 sidewall bottom of bosh and interior fire door 4 surround static pressure area.The good static pressure area of closure So that whole air are flowed up in piston flow shape in coal bed, bypass without gathering hole of the air Jing fire bars below 3 logical to operation Road region.Although gathering hole directly contact operating walk way inner chamber of the coal piling area coal bed by fire bars more than 3, air are worn in coal bed During row, coal bed gas channel and the formation of exhaust opening negative pressure are drawn up power, the formation of static pressure area static pressure and flow up driving force and height Warm smoke density forms the air flows upwards that buoyancy lift upwards causes in coal bed, and horizontal direction flows out coal bed to operating walk way area The air capacity in domain is negligible.Final whole air passes through coal bed with piston stream mode, and whole catalytic combustion faces are burnt and discharged Net quantity of heat, consumed air mass flow that air utilization ratio reaches the air mass flow that 100%, i.e. blower fan blast and combustion front burns It is equal to be directly proportional.It is straight that the big space for being difficult to eliminate between coal briquette and coal briquette can increase combustion air Effect of Short Circuit, i.e. partial air Connect from this space and flow to exhaust opening, it is final to reduce performance of control of the blower fan start-stop to furnace temperature.Obviously, tune of the air to combustion heat release Control performance, depending on static pressure area closure and operating walk way inner chamber air trapping amount, operating walk way inner chamber air trapping amount is taken again Certainly horizontal direction gap length, 5 sealing of hole device to hole degree and outer fire door between coal briquette.Coal bed top surface is in 2 top end face of bosh On, without obvious gap between coal briquette hole device to hole and coal briquette, outer fire door 5 can fully seal operating walk way right output port, be conducive to maintaining Air regulation process of the blower fan start-stop to participation combustion reaction.As shown in Figure 6, continuous tunnel furnace static pressure area is near entrance point stove Door, static pressure area top surface are not closed, and aerator blasts the gas-phase space on most of air by-pass to coal bed top surface in static pressure area And exhaust opening (smoke evacuation oxygen concentration up to 11%～12%) is rapidly flowed toward, remainder flows into coal bed with the bag-shaped mode of jet of cloth The inter-air space.The bag-shaped jet of cloth Convention diffusion in the coal bed needs to overcome larger resistance, lime-ash ball to stop that combustion air flow to combustion Burning face, stop heat smoke float and flow to furnace roof gas-phase space, and unburned coal briquette stops heat smoke flow forward, final to participate in what is burnt Combustion-supporting air quantity is few, and combustion heat release is few, and content of CO in smoke is high, interior quantity of heat storage is more, further reduces combustion heat release, and consolidated statement reveals Furnace temperature rises not get on, and hot blast temperature is less than 2 DEG C～8 DEG C of preset temperature.A little portion in the simply air that stove chamber inner combustion is consumed Point, the air mass flow of blower fan start-stop control is not directly proportional to the air mass flow of combustion front consumption, undoubtedly increases blower fan start-stop certainly The difficulty of the air mass flow process that dynamic regulation and control burning is consumed.Air mass flow and stream that continuous tunnel furnace blower fan is sent into enter the air stream of coal bed Amount is not directly proportional, and stream enters the air mass flow of coal bed and combustion heat release amount is not directly proportional so that blower fan start-stop regulates and controls to hot blast temperature It is poor-performing, unstable unreliable.Up baking quality of tobacco is not affected to reduce furnace temperature and rising, changing yellow stage and fixation stage are operated Work duty sees that fire becomes one of tobacco flue-curing basic administrative task.Continuous tunnel furnace blower fan is normally opened also not to rise furnace temperature problem, is easily easily mistaken for It is low to be coal-fired calorific value, typically use more high heating value (5500kCal/kg～7000kCal/kg) anthracite or bituminous coal instead, so Easily there is localized hyperthermia in burner hearth and hardening crack furnace roof arch brick, increase tobacco flue-curing fuel cost, discharge smoke pollution environment etc. and ask Topic.Utility model furnace roof 1, bosh 2 and operating walk way shell link into an integrated entity for full weld and seamless metal shell, metal-back Body thickness 3mm～5mm, to guarantee the sealing of air stove intracavity space, infilters burner hearth without surrounding air, it is ensured that the controllable of furnace temperature Property.When furnace sidewall backplate is made with narrow reinforcing bar precoated plate alternative metals housing, easily there are hightemperature cracks to continuous tunnel furnace in furnace wall, penetrates into stove , there is furnace temperature out of control or even to 68 DEG C～70 DEG C phenomenons in the air mass flow inconvenience control of thorax.Utility model metal shell full weld connects It is connected into integral structure, bank up coal briquette and igniting etc. from the igniting of coal bed end face center of the closing of static pressure area, vertical furnace chamber, vertical sets Meter so that the air mass flow and stream that blower fan is sent into is entered the air mass flow of coal bed and be directly proportional, and stream enters the air mass flow of coal bed and burning Thermal discharge is directly proportional, so as to ensure that blower fan start-stop, to hot blast temperature performance of control, can guarantee that dry tobacco leaf quality, save changing yellow stage and Fixation stage operative employee's duty sees that firer makees.

Caused by " open fire reverse combustion " technical characteristic, technical characteristic is " high temperature isolation ".As shown in Figure 6, in tunnel furnace door Side is high temperature combustion zone, and static pressure area and high temperature combustion zone coincidence are one, and when blower fan temporarily ceases air-supply, high temperature combustion zone is high Warm furnace gas can pass through vent and Ramulus Et folium Spiraeae Acuminatae reversely blows to blower fan, adds blower fan and is acted on by fire door hyperthermia radiation, causes blower fan Shell temperature is increased to 200 DEG C～250 DEG C, fan static pressure decline occurs, and air mass flow diminishes, or even is directly burned out, combustion-supporting Blower fan becomes continuous tunnel furnace replacement frequency highest, consumes one of most parts.Calculate within 2 months by baking in a year, change number of units 1～ 4.To reduce combustion fan renewal cost, operative employee's duty sees that blower fan becomes one of tobacco flue-curing basic administrative task.It is practical new Type is based on open fire reverse combustion principle, and combustion front is located proximate to the coal bed top area of furnace roof 1, has one between combustion front and static pressure area The coal bed for determining height is separated by, and adds high-temperature furnace gas and rises naturally flowing so that the quiet nip space being connected with blower fan is located all the time In low temperature state, it is detained refluence without high-temperature furnace gas and burns the appearance of blower fan phenomenon, without the diligent monitoring combustion fan of operative employee, thoroughly solve The fan operation insecurity problem that continuous tunnel furnace of having determined is present.

Utility model technical characteristic " open fire reverse combustion " is the precondition of energy-conservation, reduction of discharging, safety, autocontrol operation.It is practical new Type technical characteristic " high temperature isolation " is the inevitable outcome of " open fire reverse combustion ".Technical characteristic " it is controllable that furnace temperature is adjustable " is that tobacco flue-curing is protected The key of quality guarantee amount, is key that utility model is able to popularization and application.

Effective resultant effect that said structure feature and technical characteristic bring is that air stove energy-saving environmental protection safety performance is obtained Increase substantially.Utility model is disposably coaling deashing, and outer fire door 5 is not opened in baking midway, and coalingging, it is comfortable to unload ash manipulation；Section Coal, flue gas CO discharges are ultralow, reduce tobacco flue-curing air stove to coal-fired high heating value requirement；The burning of baking process curve can be close to For being thermally generated hot blast, without furnace temperature is out of control and furnace temperature rise not up the problems such as；Scaling loss blower fan hidden danger is flow backwards without high-temperature furnace gas.

Nicotiana tabacum L. Processing farage industry, tobacco planting processing base and the tobacco grower cooperative society for using anthracite beehive coal ball is intensive Flue-cured tobacco and loose-leaf curing combustion heat supplying device, hot air chamber and air stove, can all use utility model.

Tobacco flue-curing practice shows：Disposably coaling deashing, coaling comfortable, deashing is easy；Igniting is ignited simple；Smoke evacuation temperature Degree<80 DEG C, flue gas CO discharges reduce by 75%, and coal-fired calorific value saves more than 25%；Blower fan start-stop is good to hot blast temperature performance of control It is good, baking process curve can be close to and generate hot blast, be occurred without warm overheating problem is fallen；Leak without high-temperature furnace gas, blower fan temperature is all the time Less than 38 DEG C, without high temperature over-heated fault；Saving of work and time cost declining；Dry tobacco leaf quality better, is lost without endoplasm, can use content of ashes Up to 50%, the local life anthracite beehive coal ball of calorific value as little as 3000kCal/kg～4000kCal/kg, uses ash 10%～12%, the selected anthracite beehive coal ball of volatile matters 4%～8%, calorific value 5500kCal/kg～7000kCal/kg, honeybee When nest briquetting is without the mineral-type bonding agent such as clay, energy-saving and emission-reduction safety and comfort performance is more projected.

Claims (4)

1. beehive coal ball open fire reverse combustion heating stove, including furnace roof, bosh and fire bars, furnace roof are in round platform tubular, it is characterised in that：Also Including interior fire door and outer fire door, furnace roof bottom face circumference and the connection of bosh top end face circumference full weld, bosh inner chamber is in upright drum Shape, bosh inner chamber highly locate horizontal fixed grate from base plate 200mm～350mm, above fire bars for coal piling area, lower section be static pressure Area, above fire bars, bosh inwall sticks height for 300mm～500mm, the fire brick layer that thickness is 30mm～50mm, bosh side wall Open up a square gathering hole, operation open height and bosh Sidewall Height is equal, width 0.6m～0.8m, two side of gathering hole is equal Perpendicular to bosh base plate, the following gathering hole edge of fire bars and the seamless connection of interior fire door, interior fire door are in square plate shape, interior fire door height , width highly equal with static pressure area and gathering hole width are equal, and bosh inner chamber passes through gathering hole and is in square tube shape and inverted behaviour It is connected as passage, operating walk way left port and gathering hole overlap and full weld connection, and operating walk way right output port is sticked by outer fire door Flame-retardant fibre board sealing, outer fire door middle and lower part central horizontal arrange secondary ventilation mouth.

2. beehive coal ball open fire reverse combustion heating stove as claimed in claim 1, it is characterised in that：Described furnace roof height is 100mm ～200mm.

3. beehive coal ball open fire reverse combustion heating stove as claimed in claim 1, it is characterised in that：Described furnace abdominal height be 1.2m～ 1.5m, internal diameter are 0.9m～1.1m.

4. beehive coal ball open fire reverse combustion heating stove as claimed in claim 1, it is characterised in that：Described secondary ventilation mouth internal diameter is 40mm～60mm.