CN205825103U

CN205825103U - Burning air supply system in a kind of biomass combustion furnace and combustion furnace

Info

Publication number: CN205825103U
Application number: CN201620639386.5U
Authority: CN
Inventors: 杨兴; 成树; 曾涛
Original assignee: Hunan Xindi New Energy Technology Co Ltd
Current assignee: Hunan Xindi New Energy Technology Co Ltd
Priority date: 2016-06-24
Filing date: 2016-06-24
Publication date: 2016-12-21
Anticipated expiration: 2026-06-24

Abstract

First this utility model provides the burning air supply system in a kind of biomass combustion furnace, described burning air supply system includes little blower fan, aerator and the matching air box being sequentially connected in series, described little power of fan 10～200w blower fan, described aerator is more than little power of fan and the blower fan for the fresh air main for combustion furnace offer for power of fan, described matching air box includes the outlet of multiple parallel connection for distributing fresh air and it, and the outlet of the plurality of parallel connection is connected with main ajutage, discharge nozzle anti-backfire ajutage and other purposes ajutage respectively.Burning air supply system described in the utility model is that biomass combustion furnace provides a kind of safe and efficient working environment.This utility model correspondingly provides a kind of combustion furnace.

Description

Burning air supply system in a kind of biomass combustion furnace and combustion furnace

Technical field

This utility model relates to technical field of combustion equipment, and the burning supply being specifically related in a kind of biomass combustion furnace is System and combustion furnace.

Background technology

In since cured tobacco production and popularization more than 100 year, the history in coal baking tobacco leaves existing more than 50 years, coal Baking replaces the baking of original firewood, is the much progress in tobacco roasting history, for protecting forest resources and ecological environment is made Significant contribution.In recent years, tobacco business absorbs Foreign Experience and technology, and bulk curing barn success is promoted in exploitation, from tradition Barn, to bulk curing barn, is the another much progress in tobacco roasting history, significantly improves the utilization rate of the energy, effectively reduce baking It is roasted into this.But, bulk curing barn the most fundamentally solves the present situation toasted with coal for the energy, coal constantly consume and The local pollution of the environment problem that barn clustered is brought the most increasingly displays.Coal toasts dust, the carbon oxygen discharged The pollutant emissions such as compound, sulfide and polycyclic aromatic hydrocarbon in atmosphere, also discharge a large amount of SO during burning₂、CO₂、CO、NO₂In gas Body, brings severe contamination to surrounding, affects air quality, causes the environmental accident such as acid rain, haze.

As patent of invention CN201310726295.6 relates to a kind of varying capacity air stove, the change of a kind of heating according to need Capacity indirect type hot blast stove for flue-cured tobacco, belongs to Nicotiana tabacum L. modulating equipment technical field.This invention by body of heater, dividing wall type heat exchanger, chimney, Malleation combustion fan forms, and dividing wall type heat exchanger is placed in above body of heater, and chimney is positioned at side, body of heater top, and malleation combustion fan leads to Piping connects with body of heater；Body of heater is by ash a heatable brick bed, burner hearth, burner hearth capacity adjusting mechanism, shoot door, firing door, secondary furnace and grate Composition, grate is positioned at body of heater and is split by body of heater, grate be arranged above burner hearth, lower section is grey a heatable brick bed, secondary furnace is positioned on burner hearth Fang Bingyu burner hearth is through, and burner hearth is provided with firing door, and ash a heatable brick bed is provided with shoot door, and burner hearth capacity adjusting mechanism is connected with burner hearth. This invention uses burner hearth capacity adjusting mechanism, according to the change of barn heating demand in Tobacco Leaf Curing, timely adjustment burner hearth Capacity, it is achieved heating according to need, and guarantee coal-fired fully, efficient burning.

Under country advocates the big situation of energy-saving and emission-reduction, green low-carbon, low consumption environment protection, reduce depletion of non-renewable resources, The beautiful living environment of protection be benefit the nation and the people, the inevitable behave of the offspring that benefits future generations.Also a piece of pure blue sky, cigarette district, is Nicotiana tabacum L. Industry and enterprise obligation one can't decline, the alternative energy source actively seeking coal for this applicant carries out tobacco flue-curing.

Our previous application CN201610037314.8 provides a kind of baking equipment for preparatory treatment of tobacco, including heater, Humidity-discharging device and controller, heater includes what biomass combustion furnace was connected with the smoke outlet tube of biomass combustion furnace Heat exchanger, for the circulating fan of heat air delivery and carry out the feeding device of feeding to described biomass combustion furnace, charging dress Put and include hopper and the material at described hopper outlet is delivered to the helical feed parts of biomass combustion furnace charging aperture；Row Wet device includes moisture exhausting port and is arranged on the moistureproof window at moisture exhausting port；Aerator in biomass combustion furnace, circulating fan with And helical feed parts are all connected with controller.The technical scheme of application this application, has the advantage that overall structure is simplified； By heater, humidity-discharging device and the integrated design of control device, practical；Biomass combustion furnace is used to provide heat Can, environmental protection.

But in the biomass combustion furnace related in such scheme biological particles in burner hearth in suspension combustion state, although Its burning can be relatively abundant, but the density of biomass granule fuel the lowest causing needs to provide a lot of energy sides for its suspension combustion Can guarantee that efficiency of combustion, the economy of the program is relatively low.And if failing so that the biological particles in this combustion furnace keeps good Suspended state, then this combustion furnace is easily generated coking caking and can not clean-burning problem.Further, run into the bursts such as power failure During accident, can only stop work and abandon in this combustion furnace.It addition, the heat exchange efficiency of the corresponding heat exchanger in this combustion furnace haves much room for improvement equally. Therefore, this area needs to develop a kind of new combustion furnace for biomass granule fuel combustion heat supplying, heat exchanger and corresponding A whole set of heating equipment so that have safe and environment-friendly, efficient and economic characteristic during biomass granule fuel combustion heat supplying concurrently.

It addition, specific to combustion furnace, current existing biological particles combustion furnace often because granular mass problem and Cause coking during stove chamber inner combustion, affect efficiency of combustion, even cause burner hearth blocking time serious and stop working.It addition, it is existing Combustion furnace much needs that burner hearth is carried out manual periodic cleaning and can use, and this affects efficiency and causes the wasting of resources.Therefore, need Develop a kind of new combustion furnace and provide burning air supply system new in a kind of combustion furnace to solve the problems referred to above.

Utility model content

Therefore the burning air supply system during first this utility model provides a kind of biomass combustion furnace, at least solves above-mentioned portion Divide problem.

Therefore, first this utility model provides the burning air supply system in a kind of biomass combustion furnace, and described burning supplies System include little blower fan, aerator and the matching air box being sequentially connected in series, described little blower fan be power 10～200w blower fan, described Aerator is more than little power of fan and the blower fan for the fresh air main for combustion furnace offer, described air distribution for power of fan Case includes the outlet of multiple parallel connection for distributing fresh air and it, the outlet of the plurality of parallel connection respectively with main ajutage, go out Material pipe anti-backfire ajutage and other purposes ajutage connect.

In a kind of specific embodiment, other purposes ajutage described includes lighter ajutage 156a, temperature sense Should be popped one's head in ajutage 156b and flame watch window ajutage 156c.

In a kind of specific embodiment, the other end of described main ajutage is connected use with the burning distribution plenum of combustion furnace Burn in burner hearth in sending into fresh air power-assisted biomass granule fuel from interior converter nose bottom vents, and at circumferential weld be Heat exchanger provides fresh air to carry out second-time burning；The other end of described discharge nozzle anti-backfire ajutage is passed through in burning feed pipe Portion prevents the stove fire in burner hearth from burning to hopper while sending into fresh air in burner hearth.

This utility model correspondingly provides a kind of combustion furnace, including as above the most described burning air supply system.

In a kind of specific embodiment, described combustion furnace also includes for inserting in heat exchanger and interfaced stove Mouth, for storing the hopper of biomass granule fuel, for the helical blade feeding being sent into by biomass granule fuel in converter nose Machine and burning feed pipe, for the slag in converter nose and the most not sufficiently combusted clout are pushed the slag remover in heat exchanger Structure and for by burning air supply system provide fresh air be distributed to burning distribution plenum combustion-supporting in converter nose and heat exchanger.

In a kind of specific embodiment, described helical blade feeder is drawn by feeding motor, and described combustion furnace Also include being arranged on the fence for auxiliary storage above hopper, be arranged on the burning scarce material alarm device at feed pipe top, use In time supporting the support frame of each parts in combustion furnace, be arranged on the feed hopper bottom of combustion furnace for electric fault, physics blocks material Passage bottom bucket and between helical blade feeder and play the separated material lock of anti-backfire effect, for showing and manipulating automatically controlled information Electric box and moving and the caster with adjustable height of converter nose altitude mixture control for combustion furnace.

Described burning air supply system is the beneficial effect that combustion furnace is brought: arrange little blower fan in this utility model, especially Carrying battery-driven little blower fan, even if combustion furnace is in power down mode work, little blower fan can also provide a certain amount of for burning Fresh air, it is often more important that, during power failure, little blower fan can be discharge nozzle anti-backfire ajutage and other purposes ajutage There is provided enough air to guarantee that stove fire will not burn to hopper, also will not damage such as lighter, flame observation window The workpieces such as glass plate, temperature sense probe, when having a power failure, can optionally open, close or regulate the valve on main ajutage Door.Burning air supply system described in the utility model is that biomass combustion furnace provides a kind of safe and efficient working environment.

Accompanying drawing explanation

Fig. 1 is the part-structure schematic diagram of baking equipment for preparatory treatment of tobacco (heating equipment),

Fig. 2 is furnace interior structure chart, and wherein Fig. 2 a is right side block diagram, and Fig. 2 b is main TV structure figure, and Fig. 2 c is Left side block diagram,

Fig. 3 is converter nose and slag removal mechanism schematic diagram in combustion furnace, and wherein Fig. 3 a is front view, and Fig. 3 b is left side view,

Fig. 4 be in Fig. 3 a in right side view in converter nose and outer converter nose coordinate schematic diagram,

Fig. 5 is the burning air supply system structural representation of combustion furnace,

Fig. 6 is combustion furnace and heat exchanger installation diagram, and wherein Fig. 6 a is front view, and Fig. 6 b is left side view, and Fig. 6 c is top view,

Fig. 7 is the structural representation of heat exchanger shown in Fig. 5, and wherein Fig. 7 a is its left view cut-away view, and Fig. 7 b is thereafter TV structure schematic diagram,

Fig. 8 is the cleaner unit structural representation in heat exchanger, and wherein Fig. 8 a is its front view, and Fig. 8 b is that its left view is (right Answer the rearview shown in Fig. 7 b), Fig. 8 c is its top view,

Fig. 9 is the concentration feeding system schematic diagram of five disjunctor cured tobacco curing houses,

Figure 10 is to concentrate the schematic diagram of single feeding device in feeding system.

In figure: 1, combustion furnace, 11, hopper, 12, helical blade feeder, 13, burning feed pipe, 14, converter nose, 15, burning Air supply system, 16, slag removal mechanism, 17, burning distribution plenum；

121, feeding motor；

141, interior converter nose, 142, outer converter nose, 1421, miner diameter end, 1422, bigger diameter end, 143, flame watch window, 144, temperature Degree inductive probe, 145, lighter, 146, hollow ventilated district；

151, little blower fan, 152, aerator, 153, matching air box, 154, main ajutage, 155, discharge nozzle anti-backfire ajutage, 156, other purposes ajutage；

161, slagging-off motor, 162, slagging-off band tooth push rod, 163, slagging-off rod bush, 164, push rod directive wheel, 165, gear, 166, electronic induction limit switch, 167, mechanical trip limit switch；

181, fence, 182, lack material alarm device, 183, support frame, 184, separated material lock, 185, electric box, 186, adjustable Highly castor；

2, heat exchanger, 21, secondary combustion chamber, 22, cleaner unit, 23, radiator, 24, chimney, 25, breast hole, 26, deashing Mouthful, 27, heat exchanger bracing frame；

221, flame kicker baffle, 222, cylindrical dedusting main body, 223, frustum structure, 224, flue gas rising passway, 225, heat exchanger flame spray entrance (fume inlet passage)；

231, radiator bobbin carriage, 232, fin radiator, 233, heat radiation light pipe；

3, feeding system is concentrated, 31, Material sucking machine containing vacuum pump, 32, storage vat, 33, aspirating air pipe, 330, air entry, 34, charging line, 340, material sucking port, 35, auger feed mechanism, 36, electromagnetic valve, 37, vacuum hopper, 371, drainage screen, 38, weight Power valve；

4, barn, 41, for hot cell, 42, hang smoke-box, 421, hang smoke-box gate, 43, insulated wall, 44, for hot cell return air inlet, 45, for hot cell air outlet, 46, high low speed circulating fan, 47, cold wind import.

Detailed description of the invention

Heating equipment and wherein each parts will be described in detail by this utility model in conjunction with accompanying drawing, but this utility model Protection domain be not limited to that.

One, the combustion furnace in heating equipment:

1) biomass granule fuel

The fuel that is suitable for of the present utility model mainly includes the life with wood flour, tabacco straw, soybean stalk, rice husk etc. as raw material Material grains.Described biological particles is raw material pulverizing the cylindrical pellet of extrusion molding (or compression forming), and its particle diameter is (straight Footpath) it is 3～20mm, preferably 5～10mm, particle length is generally less than 6cm, and preferably particle length is 2～5cm.Described biomass The density of granular fuel is ＞ 1g/cm³, preferably its density is 1.05～1.3g/cm³。

2) converter nose in combustion furnace

As shown in figures 1-4, first this utility model provides the converter nose in a kind of biomass combustion furnace, described converter nose 14 to wrap Include cylindrical interior converter nose 141 and the outer converter nose 142 of truncated cone-shaped of horizontal setting, between interior converter nose and outer converter nose, form hollow ventilated district 146, the burner hearth of combustion furnace described in main composition inside described interior converter nose, in Horizontal cylinder, the bottom of converter nose offers air vent use In providing air for biological particles fuel combustion；The axial one end of interior converter nose is connected, the most separately with the bottom of burning feed pipe 13 One end is in inserting the heat exchanger 2 being connected with combustion furnace 1；Outer converter nose is equally used for inserting axial in described heat exchanger 2 End is miner diameter end 1421, and outer converter nose is its bigger diameter end 1422 near axial one end of burning feed pipe, and outer converter nose miner diameter end The inwall of 1421 is 0.8～5mm to the circumferential weld width d of the i.e. bocca periphery of radial distance between interior converter nose outer wall.

In a kind of specific embodiment, the external diameter of described interior converter nose is 159mm, and the external diameter of outer converter nose bigger diameter end is 214mm.In a kind of specific embodiment, described circumferential weld width d is 1～3mm, preferably 1.5～2.5mm, for example, 2mm.

In a kind of specific embodiment, in nearly heat exchanger one end, interior converter nose is concordant with the axial length of outer converter nose, and In nearly burning feed pipe one end, the axial length of interior converter nose is more than the axial length of outer converter nose, and is longer than outer converter nose at interior converter nose The radial outside of axial a section be provided with the burning distribution plenum 17 of this end of converter nose in parcel.Described burning distribution plenum is the most suitable In a buffer container, come from the fresh air in aerator for access, and be distributed to combustion furnace burner hearth and In secondary combustion chamber.

In a kind of specific embodiment, a diameter of 2 of the air vent bottom interior converter nose～10mm, quantity be 20～ 200.On the one hand the design of air vent is to ensure that the fresh air for providing abundance in burner hearth, guarantees the biology in burner hearth simultaneously Matter granule do not fall out to hollow ventilated district or burning distribution plenum in, and can design accurately its size, quantity and distribution and Design circumferential weld size makes the air-supply ratio of the primary combustion in burner hearth and the second-time burning in heat exchanger suitable.Concrete in one Embodiment in, a diameter of 3 of the air vent bottom interior converter nose～7mm, quantity is 40～100；Concrete, described ventilation Hole for example, diameter 5mm quantity is the uniform hole of 70.

In a kind of specific embodiment, described converter nose also includes slag removal mechanism 16, and described slag removal mechanism be with The self-skimming mechanism of controller electrical connection, for pushing the slag in interior converter nose and the most not sufficiently combusted clout part Second-time burning is carried out in heat exchanger 2.

In a kind of specific embodiment, described converter nose also including, the discharge nozzle being arranged in burning feed pipe is prevented back Fire ajutage 155, the air supply direction of described discharge nozzle anti-backfire ajutage is consistent with the feed direction of biomass granule fuel, uses In preventing the stove fire in burner hearth from burning in hopper, simultaneously for burner hearth providing another road combustion-supporting fresh air.Concrete in one Embodiment in, discharge nozzle anti-backfire ajutage is two, its blowout wind down fuel is blown in converter nose.

In a kind of specific embodiment, described converter nose also includes flame watch window 143, described flame observation window Mouth is cylindrical structural, and its axial one end is goed deep in burner hearth, and the axial other end is arranged on outer converter nose radial outside；In described converter nose Also include for surveying the temperature sense probe 144 setting fire box temperature and the lighter 145 for igniting；Described flame observation window Other purposes ajutage 156 it is provided with for preventing stove fire from damaging workpiece by mouth, temperature sense probe and lighter；And Described temperature sense probe, lighter, for for burner hearth provides biomass granule fuel helical blade feeder 12 and For providing the burning air supply system 15 of combustion air to be all electrically connected with the controller for combustion furnace.In a kind of specific embodiment In, described lighter is silicon nitride igniter.The setting of described flame watch window and temperature sense probe makes staff Can accurately judge in combustion furnace with or without flame-out.

Converter nose beneficial effect: hollow ventilated district 146 and the interior converter nose of the converter nose that this utility model provides are little with outer converter nose Between the end of footpath, the setting of circumferential weld makes: 1) have more stable air pressure in hollow ventilated district, provides more stable fire ring for burner hearth Border, 2) burn again after the air in hollow ventilated district is preheated, be conducive to improving efficiency of combustion, 3) in burning air supply system The fresh air provided can through this approach enter in heat exchanger make biomass granule fuel or its primary combustion gained slag and The most not sufficiently combusted clout is able in heat exchanger carry out sufficient second-time burning, 4) at the bottom of the size of circumferential weld width and burner hearth The matched design of portion's air vent size can make biomass granule fuel primary combustion in burner hearth and in heat exchanger two Secondary burning is adjusted to desirable level so that efficiency of combustion is maximum.

The processing of converter nose: in burning, converter nose uses 310S high temperature resistant stainless steel material.310S high temperature resistant stainless steel is a kind of Austenitic chromium nickel stainless steel, it has good non-oxidizability and corrosion resistance, because the chromium of higher percent and nickel so that it is gather around Have good many creep strengths, can at high temperature continuous operation, there is good heat-resisting quantity, its resistant to elevated temperatures temperature is not less than 1150℃.When making the interior converter nose of burning, first pass through high accuracy sawing machine cutting, then put face work on lathe, finally put on drilling machine and add The a number of air vent of work.In combustion furnace, the design of converter nose has taken into full account the characteristic of biomass granule fuel, and its structure sets Meter is rationally, it is ensured that full combustion of fuel.The outer converter nose that burns uses high temperature spheroidal graphite cast-iron one-shot forming casting, the temperature tolerance of its material 1000 DEG C can be not less than and there is indeformable characteristic under high-temperature medium.Converter nose of the present utility model uses high temperature resistant, anticorrosion The interior converter nose that the 310S rustless steel of erosion makes is as burner hearth inner bag, and its service life is more than 10 times of other common material.

3) slag removal mechanism in combustion furnace

Seeing Fig. 3, this utility model provides the self-skimming mechanism in a kind of biomass combustion furnace, removes including horizontally disposed Slag band tooth push rod 162, for slagging-off band tooth push rod provide and transmission power slagging-off motor 161 and gear 165, be set in slagging-off band Tooth push rod radial outside slagging-off rod bush 163, for slagging-off band tooth push rod guide push rod directive wheel 164, described slagging-off band tooth Axial one end of push rod is arranged in the burner hearth formed by the cylindrical interior converter nose 141 of horizontal setting, the axle of slagging-off band tooth push rod It is arranged on outside burner hearth to the other end and is pushed away slag motion by the level of controller control push rod.Tooth in this utility model, on gear Portion mates with the teeth portion in slagging-off band tooth push rod so that pinion rotation drives described push rod horizontal movement.

In a kind of specific embodiment, described self-skimming mechanism also includes electronic induction limit switch 166 and machine Tool lead limit switch 167 is for limiting the start-stop position that slagging-off band tooth push rod moves in the horizontal direction.In this utility model, institute State electronic induction limit switch 166 and mechanical trip limit switch 167 is arranged at removing the gred axial same of band tooth push rod 162 End, spacing when being used to push rod rollback (duplicate protection) is to ensure that converter nose structure will not be damaged by the motion of push rod rollback.

In a kind of specific embodiment, described push rod directive wheel 164 and gear 165 are separately positioned on slagging-off band tooth and push away The relevant position that bar is upper and lower.

In a kind of specific embodiment, described slag removal mechanism also includes be arranged on slagging-off axial one end of band tooth push rod And the dreg pushing board being arranged in burner hearth.Preferably, the horizontal Breadth Maximum of described dreg pushing board is the 1/20～1/ of interior converter nose internal diameter 3, the height of dreg pushing board is the 1/20～1/3 of interior converter nose internal diameter.It is highly preferred that the horizontal Breadth Maximum of described dreg pushing board is interior stove The 1/10～1/4 of mouth internal diameter, the height of dreg pushing board is the 1/10～1/4 of interior converter nose internal diameter.

In a kind of specific embodiment, described dreg pushing board is arc plate or rectangular slab.Described arc plate is such as in half Circle, crescent, rectangle or square, the biological particles stove that the dreg pushing board being so designed that can will burn in burner hearth in appropriate amount Slag and the most not sufficiently combusted clout push in heat exchanger, and ensure that appropriate biomass granule fuel stays burner hearth simultaneously In.

Beneficial effect: the self-skimming mechanism that this utility model provides automatically controls periodically slagging-off, anti-fuel coking is lumpd, And described push rod stirs burner hearth bottom in time in case the blocking of stop-pass air holes, it is ensured that efficiency of combustion.Additionally, released burning by push rod The slag of stove and the most not sufficiently combusted clout in heat exchanger can also second-time burning, improve efficiency of combustion further.This reality With the self-skimming mechanism of novel offer in slag removal, it is possible to part biological matter granular fuel is pushed in heat exchanger, Second-time burning can be carried out because pushing the biomass granule fuel in heat exchanger 2, thus self-skimming process will not detract completely Efficiency of combustion.

Self-skimming mechanism uses material and processing: slagging-off band tooth push rod therein uses the 310S of diameter 25mm high temperature resistant not Rust round steel machine add-on type, has high intensity, the feature such as high temperature resistant, corrosion-resistant, meets duty requirements.Use bipolar caging system control System (mechanical type and electronic type) push rod moves back and forth, and reaches preferable self-skimming effect.

4) the burning air supply system in combustion furnace

Seeing Fig. 5 and Fig. 2, this utility model provides the burning air supply system in a kind of biomass combustion furnace, and described burning supplies Gas system 15 includes little blower fan 151, aerator 152 and the matching air box 153 being sequentially connected in series, described little blower fan be charged pool power and Power of fan 10～200w blower fan, described aerator 152 for power of fan more than little power of fan and for for combustion furnace Thering is provided the blower fan of main fresh air, described matching air box 153 includes the outlet of multiple parallel connection for distributing fresh air and it, The outlet of the plurality of parallel connection respectively with main ajutage 154, discharge nozzle anti-backfire ajutage 155 and other purposes ajutage 156 Connect.

Described burning air supply system is the beneficial effect that combustion furnace is brought: be provided with the little wind of charged pool in this utility model Machine 151, even if combustion furnace is in power down mode work, little blower fan can also provide a certain amount of fresh air for burning, heavier , during power failure, little blower fan can be discharge nozzle anti-backfire ajutage 155 and other purposes ajutage 156 provides enough Air, to guarantee that stove fire will not burn to hopper, also will not damage such as lighter, the glass plate of flame observation window, temperature The workpieces such as inductive probe, when having a power failure, can optionally open, close or regulate the valve on main ajutage 154.This practicality Novel described burning air supply system is that biomass combustion furnace provides a kind of safe and efficient working environment.

In a kind of specific embodiment, the power of described little blower fan is 15～100w, preferably 20～50w；Described drum The power of blower fan is 150～800w, preferably 200～500w.Specifically, the power of described little blower fan and aerator is such as distinguished For 25w and 250w.In a kind of specific embodiment, described little blower fan is centrifugal blower.In a kind of specific embodiment In, during start igniting, described aerator cuts out and only opens described little blower fan, and keeps little blower fan to continue after blower opening Work, tempering when can prevent from having a power failure.Described little blower fan can be equipped with service message and battery dual power supply, in normal operation, with electricity Net power supply, and automatically enable storage battery power supply when having a power failure.Burning air supply system of the present utility model is provided with independent preventing back Fire device, any in particular cases all without phenomenon tempering detonation occur.

In a kind of specific embodiment, the other end of described main ajutage 154 and the burning distribution plenum 17 of combustion furnace It is connected to send into fresh air power-assisted biomass granule fuel from interior converter nose bottom vents burn burner hearth, and from ring Fresh air is provided to carry out second-time burning for heat exchanger at seam；The other end of described discharge nozzle anti-backfire ajutage 155 is passed through combustion Burning while fresh air is sent in burner hearth in feed pipe 13 inside prevents the stove fire in burner hearth from burning to hopper 11.This area skill Art personnel are accessible, and the other end of described discharge nozzle anti-backfire ajutage 155 can also not be passed directly into burning feed pipe 13 is internal, but be passed through and be set directly in the pipe being equiped with helical blade feeder 12, and this road fresh air is passed through the most again Burning feed pipe is interior and enters in burner hearth.

5) other structure in combustion furnace

As shown in Fig. 1～5, described combustion furnace 1 also includes for inserting in heat exchanger 2 and interfaced converter nose 14, use In storing the hopper 11 of biomass granule fuel, for biomass granule fuel being sent into the helical blade feeder 12 in converter nose With burning feed pipe 13, for the slag in converter nose and the most not sufficiently combusted clout are pushed the slag removal mechanism in heat exchanger 16 and for the burning fresh air that provides of air supply system 15 is distributed to burning distribution plenum combustion-supporting in converter nose and heat exchanger 17。

In this utility model, flame sprays in the horizontal direction from converter nose, and flame laterally burns to heat exchanger, flame level The distance of ejection converter nose end is usually 30～150cm.

In a kind of specific embodiment, described helical blade feeder 12 is drawn by feeding motor 121, and described combustion Burn stove and also include being arranged on above hopper 11 fence 181 for auxiliary storage, be arranged on the scarce material report at burning feed pipe top Alarm device 182, for supporting the support frame 183 of each parts in combustion furnace, be arranged on the feed hopper bottom of combustion furnace for electrically During fault physics block the passage between feed hopper bottom and helical blade feeder and the separated material lock 184 playing anti-backfire effect, for Show and manipulate the electric box 185 of automatically controlled information and move for combustion furnace and the caster with adjustable height of converter nose altitude mixture control 186。

Beneficial effect: the firepower size in combustion furnace described in the utility model accurately can be controlled by control system, tool Body mainly controls the start and stop of helical blade feeder 12 and controls firepower size.Such as set-up of control system is friction feeding 8s And rest and continue periodically feeding after 5s, now stove fire is more prosperous, and friction feeding 5s rest when continuing periodically feeding after 5s Stove fire is less.During concrete control, we can vary in size according to required firepower and be divided into multiple firepower gear, example Such as 10 grades, then for each firepower gear, its feeding rule is programmed and controls；Meanwhile, the slagging-off to each firepower gear Frequency is programmed automatically controlling.In a kind of specific embodiment, we come according to Temperature Feedback in the extension smoke-box of barn Automatically control firepower size or firepower gear, and automatically control slagging-off frequency according to firepower size or firepower gear.

The use material of support frame 183 and processing: select 40*40 square tube section, first cut through high precision numerical control sawing machine, then put Fixing mould welds, keeps the concordance of size.

Helical blade feeder with material and processing: the core component of helical blade feeder is helical blade and spiral Axle.Helical blade selects Q345 low-alloy steel, is added in helical blade former by material good under laser blanking machine and rushes Pressure.Helical axis selects 45# round steel quenched through high-temperature heat treatment, and hardness reaches 260～300HBS.

Two, the heat exchanger in heating equipment:

Fig. 6～8 provide a kind of heat exchanger, described heat exchanger 2 are used for being connected to horizontal converter nose 14 one end of combustion furnace 1, Described heat exchanger 2 includes being positioned at the secondary combustion chamber 21 of bottom, being arranged on second-time burning indoor and for flame and high temperature cigarette The cleaner unit 22 of gas dedusting, the high-temperature flue gas after dedusting and air carry out the radiator 23 of heat exchange and hand over for heat Flue gas after changing discharges the chimney 24 of heat exchanger；Described cleaner unit 22 includes connecting described converter nose 14 and for by horizontal in converter nose The flame of ejection and high-temperature flue gas introduce the fume inlet passage 225 in heat exchanger, are connected to two of fume inlet passage 225 end axially It is arranged at the cylindrical dedusting main body 222 of vertical direction, is positioned at two cylindrical dedusting intersubjective flame kicker baffles 221 and be positioned at the top of each cylindrical dedusting main body and the frustum structure being coaxially disposed with cylindrical dedusting main body 223, described flame kicker baffle 221 be vertically arranged and for by described flame and high-temperature flue gas from being introduced tangentially into two cylinders In dedusting main body, the bigger diameter end of described frustum structure 223 upper and miner diameter end under, its bigger diameter end is close with cylindrical dedusting main body Envelope connects so that flame and high-temperature flue gas are after fume inlet passage enters cleaner unit, at the guide effect backspin of flame kicker baffle Rotate in cylindrical dedusting main body, then flow out from the flue gas rising passway 224 that the center taper through hole of frustum structure is formed Cleaner unit and enter described radiator 23.

Skilled artisans will appreciate that, described frustum structure for example, frustum cone structure, but for ease of machining, logical Often described frustum structure is set to many pyramid structure of many pyramid structure, such as 10～30 angles, specifically real in one Executing in mode is 18 angles.Add man-hour, sector structure material (one piece of fan-shaped strip sheet) good under laser is rolled over 17 cuttves through bar folder Form frustum mechanism.

In a kind of specific embodiment, described fume inlet passage 225 is set to rhs-structure, and fume inlet passage 225 to Few one end being connected with converter nose 14 in the longitudinal direction is provided with channel base plate breach, the slag pushed away for slag removal mechanism 16 with The most not sufficiently combusted clout falls in the secondary combustion chamber 21 of heat exchanger 2 from there.Skilled artisans will appreciate that , described fume inlet passage 225 rhs-structure can also be not provided with base plate, and this can't affect the efficiency of dust collection of cleaner unit.

In a kind of specific embodiment, two cylindrical tangent settings of dedusting main body and setting up separately at fume inlet passage high temperature The left and right sides in flow of flue gas direction, the Breadth Maximum m that fume inlet passage projects in the horizontal plane is less than or equal to two frustum structures Beeline n that projects in the horizontal plane of miner diameter end.

In a kind of specific embodiment, described heat exchanger 2 also includes being positioned at the breast hole 25 of exchanger base, being positioned at The cleaning door 26 of the flue end of radiator 23 and for supporting the heat exchanger bracing frame 27 of each parts of heat exchanger；Described Radiator 23 comprises radiator bobbin carriage 231 and the fin radiator 232 being arranged in radiator bobbin carriage 231 and heat radiation light pipe 233, the high-temperature flue gas after dedusting is introduced into lower floor's fin radiator, after light pipe is dispelled the heat on middle level fin radiator and upper strata from cigarette Chimney discharge, air enters radiator above radiator bobbin carriage 231, and flows from top to bottom outside radiating tube, absorption have from In high-temperature flue gas, the high temperature air of heat flows out bottom heat exchanger 2；Described lower floor fin radiator is five and be arranged in parallel On sustained height, described middle level fin radiator is four and is set in parallel on sustained height, described upper strata heat radiation light pipe It is five non-finned light pipes being set in parallel on sustained height.Skilled artisans will appreciate that, in every layer of radiating tube Flue gas in four or five radiating tubes co-flow simultaneously.Flue-gas temperature in the heat radiation light pipe on upper strata is the highest, thus The fin of heat exchange area is increased, if necessary, naturally it is also possible to it is added fin without it is added.Alternatively, it is also possible to set Put more layers radiating tube or every layer more or less root radiating tube are set, this is all feasible.

In a kind of specific embodiment, dispel the heat light pipe on lower floor's fin radiator, middle level fin radiator and upper strata In one end of every hot channel be provided with cleaning door 26 and deashing lid.Compared in prior art at every layer of hot channel One end one deashing lid is set jointly for, the mode that this utility model provides so that the better tightness of radiating tube, The heat exchange efficiency of heat exchanger is higher.

In a kind of specific embodiment, secondary combustion chamber 21 inwall at described heat exchanger is built and is provided with refractory brick, and Described heat exchanger is that split is arranged, and uses flange by the scarfing cinder pipeline of split setting, secondary combustion chamber 21, radiator in heat exchanger 23 and chimney 24 is corresponding connects, and also use that described secondary combustion chamber 21 split arranges by flange under the section of laying bricks and in upper nothing Brick section connects；Scarfing cinder drawer and matched scarfing cinder rake it is additionally provided with at described breast hole.In this utility model, change The second-time burning indoor block of hot device sets refractory brick and makes it have the strongest heat insulating ability and alleviate the degree of oxidation of steel plate.Heat exchanger For modular construction, its installation is easy to operate, and Flange joint is easy to maintenance and repair, and is not required to machinery unloading installation, and it operates peace Quan Xingqiang.It addition, this utility model also arranges flue at secondary combustion chamber in upper section without brick, it is specifically located at dedusting Above device.

Those skilled in the art know ground, and cyclone separator is that the one separated for gas-solid system or liquid-solid system sets Standby, its operation principle causes rotary motion for being introduced tangentially into by air-flow, makes solid particle or the liquid with bigger centrifugal inertial force Drip and get rid of outside wall separately.The advantage of cyclone separator drawn by cleaner unit in this utility model, and arranges frustum knot further Structure 223 makes described cleaner unit be more suitable for separating the ash come from the flame and high-temperature flue gas laterally gone out in combustion furnace 1 Dirt.

In a kind of specific embodiment, the diameter of the miner diameter end of described frustum structure with the ratio of bigger diameter end diameter is 1:1.5～5.In a kind of specific embodiment, the diameter of the miner diameter end of described frustum structure and the ratio of bigger diameter end diameter For 1:2～4, the cleaner unit being so designed that plays most preferably to the flame and the high-temperature flue gas that introduce in heat exchanger in this utility model Dust removing effects.

The beneficial effect brought by this utility model heat exchanger: heat exchanger of the present utility model uses the whirlwind of special structure Formula cleaner unit, the dust produced during by burning is after cyclone dust extractor is settlement separate, and the high-temperature flue gas after purification can reach country Environmental emission standard (smokeless and dust free).

Secondary combustion chamber in this utility model heat exchanger is divided into two sections.On four perisporiums of lower intrasegmental part, adaptation is set The refractory brick of its inner wall size.The thickness of refractory brick is 30mm～50mm, uses high temperature clay to tile and forms.Upper intrasegmental part is arranged There is cyclone dust extractor, can effectively prevent the dust produced in combustion process from entering the finned tube of radiator.Secondary combustion chamber is (concrete It is heat exchanger flame spray entrance 225) dock tightly with the outer converter nose of combustion furnace.

Secondary combustion chamber 21 in this utility model heat exchanger uses acid resisting steel thick for 4mm to make, in secondary combustion chamber Flue uses combination type to be fastenedly connected with radiator 23, it is ensured that seal；Radiator 23 uses acidproof steel or stainless steel to make, Area of dissipation >=9m², heat exchange efficiency >=57.8%.

Chimney in this utility model heat exchanger usesRound steel pipe make, one end is connected with radiator, The other end stretches out and is connected with civil engineering chimney for hot cell wall is outer, and all junctions guarantee to seal.

Height in this utility model, after combustion furnace is docked with heat exchanger, bottom the secondary combustion chamber of converter nose distance heat exchanger Degree distance is 200～300mm, and for example, 250mm so that can store waste residue bottom secondary combustion chamber can carry out again secondary and fill Divided combustion, moreover it is possible to raising up of buffering dust, reduces the deposition in radiating tube, and (each baking is clear for season can to reduce deashing number of times Reason is once), reduce labor intensity, improve heat utilization rate.

Full-automatic control system in the heating equipment that this utility model provides has a characteristic that

1) possesses one-key start function.

2) possesses the fully automatic operation pattern for bulk curing barn tobacco flue-curing flow process.

3) in running, abnormal power failure can preserve running status, can automatically be connected operation after being re-energised.

4) possess (reserving) centralized Control and internet of things functional.

5) possesses automatic firing function: without manual intervention Full-automatic ignition, it is possible to whether stop working and oneself in judging burner hearth Dynamic rekindling.

6) running status can be shown: current firepower size, running status, fire box temperature can be shown.

7) possesses self-skimming function: self-skimming, it is ensured that combustion furnace is properly functioning.

8) possessing scarce material to report to the police: sound and light alarm, SMS reminds (optional).

9) possess front scavenging, rear scavenging and flame-out security function, prevent from being tempered detonation.

Three, the concentration feeding system in heating equipment:

As shown in Figure 9 and Figure 10, this utility model provides a kind of biomass granule fuel to concentrate feeding system, described concentration Feeding system 3 provides biomass granule fuel for concentrating for two or more combustion furnace 1, and described concentration feeding system 3 includes containing The Material sucking machine 31 of vacuum pump, storage vat more than 32, two aspirating air pipes more than 33, two charging lines 34, auger feed mechanisms 35, feeding distribution joint, two or more electromagnetic valve 36, two or more vacuum hopper 37 and two or more weight valve 38；Described storage Charging basket 32 is used for leaving biomass granule fuel concentratedly, is provided with auger feed mechanism (35) and for being fired by granule bottom it The feeding distribution joint of different charging lines 34 sent into by material, and described vacuum hopper 37 is arranged on top, combustion furnace for for burning Hopper 11 feed in stove, described electromagnetic valve 36 is arranged on the aspirating air pipe 33 that vacuum hopper 37 is connected with vacuum pump, described Weight valve 38 is arranged on bottom vacuum hopper 37；Vacuum pump starts and electromagnetic valve 36 on certain or a plurality of aspirating air pipe 33 is opened Time, under vacuum action, the weight valve 38 bottom the vacuum hopper 37 of this aspirating air pipe 33 correspondence remains closed, and biomass Granular fuel is in this vacuum hopper 37 sent into by corresponding charging line；When described electromagnetic valve 36 cuts out, after unloading vacuum Weight valve 38 is opened under the self gravitation effect of biomass granule fuel and material in trend combustion furnace in vacuum hopper 37 Struggle against 11 feed.

Skilled artisans will appreciate that, every barn of bulk curing barn typically can prepare a combustion furnace 1 and one Heat exchanger 2, thus outside five disjunctor barns as shown in Figure 9, set up five combustion furnaces separately, use concentration feed described in the utility model System can be above-mentioned five combustion furnace feed.Specifically, can be that certain combustion furnace is used alone this collection in certain time period Middle feeding system, it is also possible to be to have two in certain time period or multiple stage combustion furnace uses this concentration feeding system simultaneously.This reality In novel, described auger feed mechanism is also called screw feed mechanism, and its Main Function is to stir fuel and by fuel from storage Charging basket is sent in described feeding distribution joint.Stirring structure therein is possible to prevent the biomass granule fuel described feeding of blocking to divide Connector.Described auger feed mechanism 35 can be identical or different with the helical blade feeder 12 in combustion furnace 1, but general two Person uses the machine of different model, and such as the blade diameter of the two is different or pitch is different and causes the feeding ability of the two not With.

In a kind of specific embodiment, the internal diameter of described aspirating air pipe 33 is 20～150mm, described charging line 34 Internal diameter be 20～150mm.In a kind of specific embodiment, the internal diameter of described aspirating air pipe 33 is 30～120mm, preferably 40～100mm, the most for example, 50mm.The internal diameter of described charging line 34 is 30～120mm, preferably 40～100mm, concrete example As for 50mm.

In a kind of specific embodiment, the air entry 330 that vacuum hopper connects with described aspirating air pipe is positioned at very On the roof of empty hopper, the material sucking port 340 that vacuum hopper connects with described charging line is positioned at the upper of the sidewall of vacuum hopper Portion；The top of described vacuum hopper is provided with drainage screen 371, and the material sucking port 340 on vacuum hopper is positioned at below drainage screen, vacuum Air entry 330 on hopper is positioned at above drainage screen, and described electromagnetic valve is Unidirectional solenoid valve, and described vacuum pump is liquid-ring type vacuum Pump.The setting of drainage screen is possible to prevent biomass granule fuel to be drawn in vacuum pump.In a kind of specific embodiment, institute The power stating water-ring vacuum pump is more than 3kw, preferably 5～10kw, for example, 7.5kw.

In a kind of specific embodiment, described weight valve 38 includes valve plate, rotating shaft and weight member, valve plate and counterweight Parts are all connected with rotating shaft, when vacuum hopper is not loaded with biomass granule fuel and during vacuum pump opens feeding, and weight The valve plate of power valve 38 is closed under the effect of weight member, and is loaded with biomass granule fuel in vacuum hopper and unloads When carrying vacuum, valve plate automatically opens up feed in the hopper 11 of combustion furnace under the gravity of biomass granule fuel is oppressed.This reality In novel, according to the weight of weight member described in the density of biomass granule fuel and the volume respective design of vacuum hopper, Guan Bi when making described weight valve can realize zero load, the function opened during airtight and load during evacuation.

In a kind of specific embodiment, the volume of described vacuum hopper 37 is less than or equal to the hopper 11 in combustion furnace Volume.In a kind of specific embodiment, the volume of described vacuum hopper 37 be the volume of the hopper 11 in combustion furnace about 1/2, thus vacuum intake then can be automatically filled with described hopper 11 twice.Those skilled in the art can be from understanding, this practicality Biomass granule fuel is only played temporary effect by vacuum hopper described in novel, when vacuum pump stops suction, and vacuum hopper In granular fuel the most automatically drop in hopper below.In a kind of specific embodiment, on described hopper 11 It is additionally provided with glass vision panel, observes charging situation for staff the most normal.

In a kind of specific embodiment, the described Material sucking machine 31 containing vacuum pump also includes controller, described control Device electrically connects control with the material-level measure sensor arranged in combustion furnace, described controller also with the motor of auger feed mechanism, The trigger of vacuum pump and the electrical connection of described electromagnetic valve control.In a kind of specific embodiment, controller is according to setting The scarce material institute feedack that material-level measure sensor in combustion furnace detects, both the most also can automatically control described collection The start and stop of middle feeding system, select to the vacuum hopper feed on the one or more combustion furnaces specified.In a kind of concrete reality Executing in mode, the latter linked each charging line of feeding distribution joint is provided with feeding electromagnetic valve, respectively when certain combustion furnace When there is to lack material warning, controller controls the electricity on vacuum pump, the motor of auger feed mechanism, feeding electromagnetic valve and aspirating air pipe Magnet valve is all opened, and under the suction of vacuum pump, draws biomass granule fuel to corresponding vacuum mutually at feeding distribution joint In hopper, now the weight valve bottom vacuum hopper keeps air-tight state under vacuum action.When feeding reaches certain time length After, controller controls the electromagnetic valve on aspirating air pipe, vacuum pump and auger feed mechanism and cuts out, and stops suction, unloads vacuum, Grain fuel is opened weight valve under its action of gravity and is down to the hopper of combustion furnace from vacuum hopper.

Concentrate feeding system beneficial effect: 1) this utility model provide concentration feeding system use vacuum concentrate feed, Ensureing that feeding system is stable, when conveying, pipeline is in sealing vacuum state, absolutely not putty situation generation.2) this practicality is new The concentration feeding system that type provides uses Automatic Control, responds the scarce material alarm device of its each different combustion furnace connected 182 to carry out sub-material conveying to this combustion furnace.Its feeding is accurate, fuel will be caused to lack not in time because of personnel's charging, enter And affect tobacco flue-curing.3) service life of this concentration feeding system is long, and its service life is spiral, belt-type feeder apparatus 5-10 times of service life.4) saving of labor, save time, reduce labor intensity, reduce baking cost.

The biomass granule fuel that this utility model provides concentrates feeding system can be the timely feed in combustion furnace, whole system It is to automatically control feeding, only needs manpower or machinery to be unpacked by biomass granule fuel and pour in described storage vat 32, other process It is full-automatic mechanical operation, saves substantial amounts of manpower and materials.

Four, heating equipment

In the heating equipment that this utility model provides, all welding all use robot arm automatic welding, welding position select with The consistent wlding of mother metal welds, it is ensured that all weld seams are tight, smooth, and pore-free is air tight without slag inclusion, and mechanical performance reaches Mother metal performance.When high-grade mother metal welds with inferior grade mother metal, the wlding consistent with high-grade mother metal must be selected.

The outer metallic surface of the heating equipment that this utility model provides all uses resistance to 500 DEG C of high temperature above, antioxidation, attachments The environment-friendly materials that power is strong carry out preservative treatment, and external coating also makes surface cleanness grade reach GB/T 8923 through blasting treatment The Sa2.5 level requirement of regulation, surfaces externally and internally uses high temperature, epoxy zinc rich primer to carry out 3 road sprayings, and finish paint uses electrostatic spraying (baking vanish), this technique has high temperature resistant and resistant to strong corrosion characteristic, extends the service life of heating equipment.Described heating equipment All reach more than 10 years service life, generally more than 12 years.

In sum, on the basis of existing technology, applicant of the present utility model successfully develops high-efficiency low-pollution joint The biomass granule fuel heat supply complete set of equipments of energy environmental protection, it is achieved that biomass fuel fully burns, and solves conventional biomass In fuel combustion produce tar can not burn completely coking caking technical barrier.This utility model the most successfully develops novel Heat exchanger, solves the problem that in current tobacco flue-curing, heat exchange utilization rate is the highest.And successfully develop new tobacco flue-curing Intelligent control system, it is achieved that biomass combustion is the effect of full-automatic regulation firepower according to tobacco flue-curing heat demand, reaches Having arrived burning materials few, the quality of tobacco of baking gained is high, the purpose of energy-conserving and environment-protective.Meeting tobacco roasting temperature control process On the basis of requirement, not only achieve the function of fully automatic operation, self-skimming, energy-saving and emission-reduction, environment-protection low-consumption, also there is igniting Hurry up, quick heating, firepower strong, it is easy to the feature such as burn and be precisely controlled.

Specifically:

1, equipment electromechanical integration, automaticity is high, stable, safety.This machine uses automatic feed, automatic point Fire, it is automatically adjusted oxygen supply, temperature automatically controlled, operating in a key, precisely to run, combustion process is in semi-closed state, outside the flames of anger Let out, no pressure operation, low-voltage power supply；Unique self-skimming functional design, completes self-skimming, safety and stability.

2, power adjustments amplitude in combustion furnace is big, and temperature-controlled precision is high.Combustor (combustion furnace) power can be according to tobacco flue-curing work The demand of skill arbitrarily regulates, and reaches accurately to control the purpose of baking by controlling automatic function.Tobacco flue-curing work can be fully met The needs of skill, by accurate temperature control (temperature-controlled precision is up to 0.1～0.5 DEG C, and precision is higher than coal-fired temperature-controlled precision 1～3 DEG C), energy Effectively evade the mass loss that the factors such as temperature control inaccuracy are brought.Burner structure (only tradition flue-cured tobacco the compactest, lightweight The half weight of equipment), install simple and convenient.

3, biological particles burning is fully, and efficiency of combustion reaches 87%.Combustor uses half integrated gasification combined combustion technology, tool Having the characteristic of multi-faceted high temperature oxygen supply half gasification, and combustion, the long-time low power run of energy, burning is abundant, without soot emission, thermal effect Rate is high, and flue dust, sulfur are nitrogen discharged low, sulfur dioxide, hydrogen sulfide zero-emission, non-secondary pollution, and shop environment is clean.Evade because of combustion The flue dust of coal and the harmful gas impact on flue cured tobacco quality, the color, smell and taste of Nicotiana tabacum L. of coming out of the stove are strong, and quality of tobacco is obviously improved.

4, heat exchanger heat utilization ratio is high.Heat exchanger (radiator) heat exchange area is big, and sootfall room temperature is high, effectively Solve equipment coking phenomenon, can by tar gasification burnout, heat exchange efficiency is greatly improved, makes overall heat exchange efficiency reach 57.8%.

5, fuel tolerance is wide, energy-saving and emission-reduction.This combustor with biological particles as fuel, specially agriculture (Caulis et Folium Oryzae, wheat Grass, corn stalk, corn cob, rice husk, Pericarppium arachidis hypogaeae, Exocarpium Gossypii, cotton stem, Rhizoma Imperatae, weeds ...) woods (trees, bark, tree root, tree Leaf, wood shavings, bamboo powder, sawdust ...) the like waste is fuel, burning fully, consumes the energy few.

6, equipment is simple to operate, automaticity is high, save labor.Start baking from click and initially enter full-automatic control System, concentrates feed, automatic feed, is automatically adjusted oxygen supply, temperature automatically controlled, self-skimming, it is achieved that " one-touch " operates and run Stable, accurate.As a example by the baking workshop of 50 barns, traditional coal heating flue-cured tobacco needs (to include baking about 15 people Cigarette master worker), the normal operation at a workshop could be maintained, and the biological particles combustion apparatus taking this utility model to provide is baked Cigarette, it is only necessary to about 5 people, improves more than 3 times than the labor efficiency of traditional coal heating baking.

7, energy consumption and baking cost are reduced.Biomass fuel tobacco flue-curing cost why ratio baked by using fire coal low cost, one It is efficiency of combustion and heat exchanger effectiveness is greatly improved and causes energy consumption to be greatly lowered；Two is that automatic feeding system avoids accurately The waste of redundancy fuel in heating and cooling process；Three is that highly integrated automated control technology has greatly saved human cost.Adopt The baking direct cost drying 1 kilogram of Nicotiana tabacum L. with traditional coal heating equipment at least wants 2.26 yuan, and takes this utility model Middle biomass granule fuel barn dries the baking direct cost only about 1.73 yuan of 1 kilogram of dry tobacco leaf, and per kilogram Nicotiana tabacum L. is saved 0.54 yuan, often hole flue-cured tobacco expense capable of saving fuel about 312 yuan.Additionally, this utility model automatic ignition, programming rate are steady, Stable temperature control, it is automatically adjusted temperature, auto feed (every 48h adds once), dry tobacco leaf quality preferably (orange cigarette rate High), self-skimming, the utilization rate high (containing elements such as abundant nitrogen, phosphorus, potassium, can be as fertilizer also field) of slag ash.

8, emission reduction effect is notable.In Tobacco Leaf Curing of the present utility model, basic smoke dust, sulfur is nitrogen discharged low, an oxygen Changing carbon, hydrogen sulfide zero-emission, non-secondary pollution, baking shop environment is clean, it is low to pollute.Biological particles combustion apparatus baking with The exhaust emissions contrast of coal heating equipment baking is as shown in table 1.

Table 1

The heating equipment that this utility model provides is adapted to supply with original metal barn (coal heating), advanced composite material (ACM) The coupling of the dissimilar barns such as hot barn, biomass heat supply bulk curing barn and biomass heat supply movable type board house structure barn.

The conclusion that the biomass granule fuel heating equipment that this utility model provides draws through Central China University of Science and Technology's detection is: The aspects such as efficiency of combustion, maximum heat outputting power, heat exchange efficiency, hopper capacity, feed, igniting, fin radiator, control system Testing result the most qualified.

As shown in Fig. 1 and Fig. 9, Figure 10, this utility model provides a kind of biomass granule fuel heating equipment, described heat supply Equipment includes combustion furnace 1, heat exchanger 2, provides the concentration feeding system 3 of biomass granule fuel and barn 4, institute for combustion furnace Stating heat exchanger 2 for being connected to horizontal converter nose 14 one end of combustion furnace 1, described barn 4 includes for hot cell 41, described heat exchanger 2 Being arranged on in hot cell 41, described combustion furnace 1 and concentration feeding system 3 are arranged on outside barn 4；Described concentration feeding system 3 is used Thering is provided biomass granule fuel in concentrating for two or more combustion furnace 1, described concentration feeding system 3 includes the suction containing vacuum pump Machine 31, storage vat more than 33, two charging lines 34 of more than 32, two aspirating air pipes, auger feed mechanism 35, feeding distribution connect Head, two or more electromagnetic valve 36, two or more vacuum hopper 37 and two or more weight valve 38；Described storage vat 32 is used for concentrating Depositing biomass granule fuel, bottom it, being provided with auger feed mechanism 35 and for granular fuel being sent into different feedings The feeding distribution joint of pipeline 34, described vacuum hopper 37 is arranged on top, combustion furnace for supplying for the hopper 11 in combustion furnace Material, described electromagnetic valve 36 is arranged on the aspirating air pipe 33 that vacuum hopper 37 is connected with vacuum pump, and described weight valve 38 is arranged on Bottom vacuum hopper 37；When vacuum pump starts and electromagnetic valve 36 on certain or a plurality of aspirating air pipe 33 opens, make at evacuation Under with, the weight valve 38 bottom the vacuum hopper 37 of this aspirating air pipe 33 correspondence remains closed, and biomass granule fuel is through phase The charging line answered is sent in this vacuum hopper 37；When described electromagnetic valve 36 cuts out, the weight valve 38 after unloading vacuum is very Empty hopper 37 is opened under the self gravitation effect of biomass granule fuel and hopper 11 feed in trend combustion furnace.

In a kind of specific embodiment, described heating equipment is tobacco flue-curing heating equipment, and described barn is also Including hanging smoke-box 42 and being positioned at for the insulated wall 43 between hot cell 41 and extension smoke-box 42, and in barn, it is additionally provided with high circulated at low velocity Blower fan 46 is used for driving air for circulating between hot cell 41 and extension smoke-box 42.

In a kind of specific embodiment, described combustion furnace includes that converter nose 14, described converter nose 14 include horizontal setting In cylindrical, converter nose 141 and the outer converter nose 142 of truncated cone-shaped, form hollow ventilated district 146, described interior stove between interior converter nose and outer converter nose The burner hearth of combustion furnace described in the internal main composition of mouth, in Horizontal cylinder, the bottom of converter nose offers air vent for for biomass Grain fuel combustion provides air；The axial one end of interior converter nose is connected with the bottom of burning feed pipe 13, and the axial other end is used for inserting In the heat exchanger 2 being connected with combustion furnace 1；It is miner diameter end that outer converter nose is equally used for inserting the axial one end in described heat exchanger 2 1421, outer converter nose is its bigger diameter end 1422 near axial one end of burning feed pipe, and the inwall of outer converter nose miner diameter end 1421 arrives The circumferential weld width d of the i.e. bocca periphery of the radial distance between interior converter nose outer wall is 0.8～5mm.

In a kind of specific embodiment, described combustion furnace includes the air supply system 15 that burns, described burning air supply system 15 include little blower fan 151, aerator 152 and the matching air box 153 being sequentially connected in series, and described little blower fan is that charged pool is powered and blower fan merit Rate 10～200w blower fan, described aerator 152 for power of fan more than little power of fan and for providing main for combustion furnace The blower fan of the fresh air wanted, described matching air box 153 includes the outlet of multiple parallel connection for distributing fresh air and it, described many The outlet of individual parallel connection is connected with main ajutage 154, discharge nozzle anti-backfire ajutage 155 and other purposes ajutage 156 respectively.

In a kind of specific embodiment, described combustion furnace includes that slag removal mechanism 16, described slag removal mechanism include level The slagging-off band tooth push rod 162 that arranges, provide for slagging-off band tooth push rod and the transmission slagging-off motor 161 of power and gear 165, sheathed Slagging-off rod bush 163 at slagging-off band tooth push rod radial outside, the push rod directive wheel 164 for slagging-off band tooth push rod guiding, described Axial one end of slagging-off band tooth push rod is arranged in the burner hearth formed by the cylindrical interior converter nose 141 of horizontal setting, and remove the gred band tooth The axial other end of push rod is arranged on outer and by controller control push rod the level of burner hearth and pushes away slag motion.

In a kind of specific embodiment, described heat exchanger 2 includes being positioned at the secondary combustion chamber 21 of bottom, being arranged on two In secondary combustor and for the cleaner unit 22 of flame and high temperature fume dust removal, the high-temperature flue gas after dedusting are carried out with air The radiator 23 of heat exchange and the flue gas after heat exchange discharge the chimney 24 of heat exchanger；Described cleaner unit 22 includes even Connect described converter nose 14 and for will in converter nose the flame of laterally ejection and high-temperature flue gas introduce the fume inlet passage 225 in heat exchanger, Two that are connected to fume inlet passage 225 end are axially arranged at the cylindrical dedusting main body 222 of vertical direction, are positioned at two circles Cylindricality dedusting intersubjective flame kicker baffle 221 and be positioned at each cylindrical dedusting main body top and with cylinder The frustum structure 223 that dedusting main body is coaxially disposed, described flame kicker baffle 221 is vertically arranged and for by described flame and height Temperature flue gas from being introduced tangentially into two cylindrical dedusting main bodys, the bigger diameter end of described frustum structure 223 upper and miner diameter end under, Its bigger diameter end is connected with cylindrical dedusting body seal so that flame and high-temperature flue gas after fume inlet passage entrance cleaner unit, Rotate under the guide effect of flame kicker baffle in cylindrical dedusting main body, then from the center taper through hole shape of frustum structure The flue gas rising passway 224 become flows out cleaner unit and enters described radiator 23.

In a kind of specific embodiment, high low speed circulating fan 46 drives the air confession hot cell from insulated wall 43 top Return air inlet 44 enters for hot cell 41, and flowing out for hot cell air outlet 45 bottom insulated wall 43 enters extension smoke-box for hot cell 41 42；Described extension smoke-box 42 is provided with extension smoke-box gate 421 and passes in and out for personnel and material, is additionally provided with cold wind import in described barn 47。

This utility model provides a kind of containing above-mentioned combustion furnace, heat exchanger and the heating equipment of concentration feeding system.This reality Realize the repeated combustion of biomass granule fuel with the heating equipment of novel offer, make the burnings such as fuel, tar, dust fill Point, noresidue after burning, the tar produced during efficiently solving biomass combustion, cinder blocking heat-exchanger, tail gas are residual Slag pollutes the key issue such as environment and etching apparatus, significantly improves the utilization rate of biomass energy calorific value.Described heating equipment At least there is following features.

1, safety: utilize coal to have naked light to produce as fuel, it is possible to leakage fire causes Nicotiana tabacum L. to burn, causes that tobacco grower's is huge Big loss；And in this utility model, combustion furnace is arranged on that barn is outer, heat exchanger is sealingly disposed in barn in hot cell, barn Interior extension smoke-box and confession hot cell are kept apart by insulated wall, and the naked light produced in combustion furnace is totally-enclosed in combustion furnace and heat exchanger, Because of the consequence without producing Nicotiana tabacum L. burning.

2, environmental protection: whole heating equipment under operation, does not has any dust, flue gas to emerge, and sulfur is nitrogen discharged low, an oxygen Changing carbon and hydrogen sulfide zero-emission, baking shop environment is clean, pollution-free.And coal combustion contains hook fire and adds when particularly dissipating coal baking The program of coal, has the drift of substantial amounts of coal ash dirt to raise and SO₂Release, affects and pollutes environment.

3, high-quality baked goods: concentration feeding system of the present utility model, burning feed mechanism, burning supply are System, slag removal mechanism etc. are programme controlled automated system, such as comprise helical blade feeder in burning feed mechanism, spiral shell Vane sheet feeder is set to automatic open close by program, determines firepower size in combustion furnace according to its opening and closing time, and then determines The real-time heating load of fixed whole heating equipment so that when dry-bulb temperature in barn and wet bulb temperature and heating-up time, steady temperature Between etc. the equal controllable precise of parameter.Wherein without the variations in temperature of instability fluctuated, do not result in the nothings such as cold dust and hot dust The low quality Nicotiana tabacum L. of use value, the quality of tobacco baked is good.It addition, the tobacco flue-curing program that automatization's standard is arranged is permissible Avoid a lot of maloperation to bring waste product, and make the quality of Nicotiana tabacum L. the most well-balanced more preferably.

4, saving of work and time: full-automatic setting can save substantial amounts of manual labor.Whole process the most only needs manpower by biology Matter granular fuel send into concentrate feeding system storage vat in (this process also can complete by machinery), and the slag of after-flame from The breast hole of heat exchanger clears.Feeding system is concentrated automatically from storage vat 32, biological particles to be sent into vacuum material In bucket 37, automatically sending into hopper 11 by biological particles from vacuum hopper 37 after feed, burning air supply system is automatically adjusted Sending into the air capacity in combustion furnace, the slag in burner hearth and the most not sufficiently combusted clout are pushed heat exchange by slag removal mechanism automatically Device carries out second-time burning, in burner hearth burning and heat exchanger in second-time burning produce high-temperature flue gas after dedusting at radiator Place discharges from chimney after heating the circulation air in barn, and the high low speed circulating fan 46 in barn promotes the heat in barn empty Gas circulates and from flowing into for hot cell 41 to hang, Nicotiana tabacum L. carries out smoke-box 42 heated baking, hangs the temperature and humidity in smoke-box same Sample is also adopted by automatically controlling.These processes are carried out the most automatically, save substantial amounts of manpower and time.And avoid people and burning combustion The directly contact of material, beneficially tobacco grower's is healthy.

5, efficient energy-saving: this utility model changes in first technology the mode of suspension combustion in combustor b, changes biology into Matter granule is controllably deposited in converter nose burning, then by adjusting burning air supply system of the present utility model so that its effect of burning Rate is further increased to 87% by 82%, and the raising of efficiency of combustion produces remarkable result to energy saving of system.It addition, this utility model In the case of good at exhaust emissions in combustion furnace noncoking, not slagging scorification, it is not required to provide so that biological particles suspension combustion Strong impetus and energy expenditure, reduce further the energy consumption of whole combustion furnace and heating equipment.

6, the service life of equipment is long: this heating equipment uses the steel of special substance, has high temperature resistant, anticorrosion, prolongs The features such as long life；Equipment surface application and through blasting treatment make surface cleanness grade reach GB/T 8923 regulation Sa2.5 level requirement, surfaces externally and internally uses high temperature, epoxy zinc rich primer to carry out three road sprayings, and finish paint uses electrostatic spraying (baking vanish), The feature that this technique has high temperature resistant, resistant to strong corrosion, increases the service life, the life-span of this heating equipment typically can reach 12 years Above, more durable in use than other heating equipment.

7, equipment is applied widely: this heating equipment can be accomplished to dock easily and combine closely with all kinds of barns, and should Heating equipment is suitable for mobile, as cigarette can be planted but this year can not plant former years by some cigarette district, must change to another place kind, the most permissible A whole set of biomass granule fuel heating equipment is moved to other flue-cured tobacco district toast.Additionally, the confession that this utility model provides Hot equipment is also used as the drying plant of various agricultural product, including medical material, Oryza glutinosa, Flos Lonicerae, Radix hemerocalis plicatae etc..

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims

1. the burning air supply system in biomass combustion furnace, described burning air supply system (15) includes the little wind being sequentially connected in series Machine (151), aerator (152) and matching air box (153), described little blower fan be power 10～200w blower fan, described aerator (152) it is more than little power of fan and the blower fan for the fresh air main for combustion furnace offer, described air distribution for power of fan Case (153) includes the outlet of multiple parallel connection for distributing fresh air and it, the outlet of the plurality of parallel connection respectively with main air-supply Pipe (154), discharge nozzle anti-backfire ajutage (155) and other purposes ajutage (156) connect.

Burning air supply system the most according to claim 1, it is characterised in that other purposes ajutage described includes lighter Ajutage (156a), temperature sense probe ajutage (156b) and flame watch window ajutage (156c).

Burning air supply system the most according to claim 1, it is characterised in that the other end of described main ajutage (154) with The burning distribution plenum (17) of combustion furnace is connected to send into the combustion of fresh air power-assisted biological particles from interior converter nose bottom vents Material burns in burner hearth, and provides fresh air to carry out second-time burning for heat exchanger at circumferential weld；Described discharge nozzle anti-backfire The other end of ajutage (155) is passed through while fresh air is sent in burner hearth in burning feed pipe (13) inside and prevents in burner hearth Stove fire burn in hopper (11).

4. a combustion furnace, including the burning air supply system (15) as described in any one in claims 1 to 3.

Combustion furnace the most according to claim 4, it is characterised in that described combustion furnace (1) also includes for inserting heat exchanger (2) In and interfaced converter nose (14), for storing the hopper (11) of biomass granule fuel, for by biomass granule fuel Send into the helical blade feeder (12) in converter nose and burning feed pipe (13), for by the slag in converter nose and a small amount of the most abundant The clout of burning pushes the slag removal mechanism (16) in heat exchanger and the fresh air provided for the air supply system (15) that will burn It is distributed to burning distribution plenum (17) combustion-supporting in converter nose and heat exchanger.

Combustion furnace the most according to claim 5, it is characterised in that described helical blade feeder (12) is by feeding motor (121) traction, and described combustion furnace also includes that being arranged on hopper (11) top is used for the fence (181) of auxiliary storage, is arranged on Burning feed pipe top scarce material alarm device (182), for support each parts in combustion furnace support frame (183), arrange Feed hopper bottom in combustion furnace physics when electric fault blocks the passage between feed hopper bottom and helical blade feeder and rises The separated material lock (184) of anti-backfire effect, for showing and manipulate the electric box (185) of automatically controlled information and moving for combustion furnace Caster with adjustable height (186) with converter nose altitude mixture control.