CN205137895U - Indirect chain bar formula straw hot -blast furnace - Google Patents

Abstract

The utility model relates to an indirect chain bar formula straw hot -blast furnace belongs to one kind and utilizes straw fuel burning to carry out heat conducting equipment, can provide clean hot air drying medium for present drying equipment, carries out the drying to grain, seed and agricultural and sideline products, can also can provide heat source etc. For industrial material to big -arch shelter heating in the high -efficient industrialized agriculture. By furnace body, the bright device of radiating fin formula stove, the equipment of spiral radiating fin formula heat pipe put, the feeding adjusts and prevents back -fire device, automatic chain bar device, air -blower, draught fan, flue fan and constitute, the furnace body include heat transfer room, frame, base, furnace gate, blast air air inlet adjustment handle, air damper, thermal -insulated shrouding, air intake, air intake otter board, the bright device of radiating fin formula stove includes furnace, radiating fin, feedstock channel, supplementary combustion passage and flue gas transition channel, the equipment of spiral radiating fin formula heat pipe is put to shunt on spiral radiating fin heat exchange tube group, flue and is shunted chamber and flue fan interface under chamber, the flue.

Description

Indirect chain-arranged type straw hot blast heater

Technical field

The utility model relates to a kind of chain-arranged type straw hot blast heater indirectly, belonging to one utilizes stalk fuel burning to carry out heat conducting equipment, specifically for indirectly heat exchange heat conduction, can be the heated-air drying medium that existing drying plant provides clean, drying is carried out to grain, seed and agricultural byproducts, to booth heating in efficient facility agricultural, also can provide thermal source etc. for industrial material.

Background technology

There is the defects such as the thermal efficiency is low, smoke abatement and dust control is poor, automaticity is low in the various straw hot blast heater major parts of current use.First it is not to the utmost desirable to be that straw hot blast heater designs in heat exchange structure, flow velocity, the flow direction etc., and the ubiquity thermal efficiency is low by only about 70%, and heat exchange, burning be the problem such as insufficient also, causing power consumption loss large, wasting energy more serious; Next is artificial loading, is not easy to grasp, material loading labour intensity of slagging tap is large; Three is that smog pollution impact is comparatively large, the easy slagging scorification of heat exchanger tube, the easy coking of fixed grate, the phenomenons such as the unstable easy burn-out fire grate of stove fire, the problem such as cause lifetime of hot-air stove shorter.Have impact on the further application and development of straw hot blast heater to a certain extent.Moreover, existing hot-blast stove heat pipe arrangement form is arranged in parallel substantially, snakelike layout, but its heat pipe is mostly above burner hearth, and the flow process that heat pipe is densely distributed, space is relatively little, cold wind flows through heat pipe is short, the time is few, heat exchange is insufficient, and heat pipe distance exhaust outlet is comparatively near, heat energy loss is large.At present, major part hot-blast stove air channel arrangement form mates with heat pipe arrangement form is reverse, and reversely enters, by the flue duct heat pipe outer wall of centralized arrangement near flue duct heat pipe exports, air-out near again outside flue duct heat pipe import or burner hearth, completes heat exchanging process.Also have in the middle of the reverse air intake of binary channels or air channel and have staggered dividing plate, hot air duct is lengthened relatively, but in general, hot air duct is substantially all transverse crossing flue duct heat pipe, and hot air flow flow process when heat pipe is short, and hot blast is few by the flue duct heat pipe outer wall time, heat exchange is insufficient, flue duct heat pipe energy runs off large, and flue outlet wind is without again utilizing mechanism, so ubiquity power consumption is high, the thermal efficiency is low, waste energy serious problem.In addition, also the heat exchanger that the snakelike heat pipe structure of classification and reverse compound hot blast air channel structure design is had, its runner is long, heat (sky) gas and flue gas Ge Zouqi road, reverse heat-exchange, temperature automatically controlled novel high-efficiency and energy-saving atmospheric hot air furnace, mainly adapt to the multi fuel such as coal, the timber energy, although the thermal efficiency can bring up to more than 75%, but heating load is less, structure is more complicated, and cost is high again, and automaticity is low.Therefore, according to China's national situation, improve the effective ways that hot-blast stove efficiency, automaticity and reduction biomass combustion environmental pollution are Developing Biomass combustion technologies.Be necessary to carry out design studies exploitation to existing indirect straw hot blast heater.Send a kind of novel indirect heat exchange chain-arranged type straw hot blast heater by design studies experiment opening, specific adaptation straw particle, press the biomass fuel such as fast fuel, straw coal also can with coal as fuel.Thus with low price fuel (shaping stalk) or the hot-blast stove progressively replacing diesel oil or coal.

Summary of the invention

The purpose of this utility model is for above-mentioned weak point, provides a kind of chain-arranged type stalk straw hot blast heater indirectly.

The utility model hot-blast stove primary combustion biomass fuel, at present, the biomass fuel that market produces has straw granular fuel, straw presses fast fuel and straw coal etc., in actual use also can coal combustion.It take air as the new and effective heat transmission equipment that medium carries out heat exchange, can provide constant temperature, constant voltage, dustless clean hot-air continuously.Only there is a small amount of Powdered ash residue after granular fuel complete combustion, easily process, pollution-free.

The utility model stove operation is simple, material, temperature automatically controlled sent to by machinery material loading, automatically chain, security is high, easy maintenance, and operating cost significantly reduces than coal-fired, fuel oil equipment, hot-blast stove adopts integral heat insulation to decrease thermal loss, more improve Thermal Efficiency of Hot Blast Stoves, hot-blast stove compact overall structure, volume be little, noiselessness, need not chimney stalk be set up, simple installation, fault rate is extremely low.Meanwhile, feed system adopts ripe anti-back-fire device, effectively can prevent tempering, ensures the safety of user and the normal operation of hot-blast stove.

In fuel combustion process, often there is coking phenomenon in all biomass boilers, thus causes burner hearth to occur the phenomenons such as stove fire is not prosperous, fire grate burns out.This stove is when fuel is when burning, and chain also in slow operation, thus destroys block fuel, and making it cannot slagging scorification, and outlet due to chain upset can fragmentation slagging scorification.So the traveling-grate stoker not slagging scorification technology of application of advanced, makes hot-blast stove use more high-efficient automatic.

The supporting intelligence control system of the utility model hot-blast stove can control blower fan by frequency-changing control system, blower fan can not be out of service at once because of blowing out, it can run slowly slowly, until stop after flue gas is discharged body of heater completely, can effectively prevent burner hearth from discharging the detonation produced not in time because of flue gas, in addition, control fan operation by frequency conversion system, significantly can reduce noise.

Indirect chain-arranged type straw hot blast heater takes following technical scheme to realize:

Indirect chain-arranged type straw hot blast heater is made up of body of heater, the bright device of radiating fin chip stove, spiral heat dissipation finned heat pipe group device, charging adjustment and anti-back-fire device, automatically chain arranging device, air blast, air-introduced machine, flue blower fan.

Described body of heater comprises Heat Room, frame, base, fire door, air blast air inlet adjustment handle, damper, heat insulation shrouding, air inlet, air inlet screen plate.Base top is connected with frame.

The bright device of radiating fin chip stove comprises burner hearth, radiating fin, feeding-passage, auxiliary combustion passage, flue gas transition passage.Burner hearth is arranged on base front portion, and furnace diameter can be between 1.2 ~ 2mm depending on stove amount of heat.Burner hearth bottom is provided with feeding-passage, and for carrying stalk fuel, be provided with flue gas transition passage in upper furnace, burner hearth rear portion is provided with auxiliary combustion passage, and radiating fin is equipped with in burner hearth outside, for heat radiation, heat exchange.By the bright and heat pipe heat of stove, outer and body space forms in heat dissipation chamber.

Described automatic chain arranging device comprises chain-grate, chain row transmission speed reducer, chain row driving motor, drive sprocket, driven sprocket, power transmission shaft, tension mechanism.Chain-grate is arranged on lower furnace portion and base, drive sprocket, driven sprocket are arranged on chassis interior by power transmission shaft, chain-grate is sleeved on drive sprocket and driven sprocket, chain row transmission speed reducer is arranged on the anterior side of base, chain row driving motor output shaft is arranged transmission speed reducer with chain and is connected, and chain row transmission speed reducer output shaft is connected with drive sprocket by shaft coupling, power transmission shaft.Chain-grate suit drive sprocket, on driven sprocket, when fuel is when burning, chain-grate also in slow operation, thus destroys block fuel, and making it cannot slagging scorification, and outlet due to chain upset can fragmentation slagging scorification.This traveling-grate stoker not slagging scorification technology, makes hot-blast stove use more high-efficient automatic.Base rear portion is provided with slag notch near chain-grate rear end, and chain-grate rear end lower device has dirt-excluding bucket.

Spiral heat dissipation finned heat pipe group device to comprise on spiral heat dissipation fin heat exchange pipe group, flue branch chamber, flue fan interface under branch chamber, flue.Spiral heat dissipation fin heat exchange pipe group is arranged on burner hearth rear portion, progressively row is vertical, and many group spiral heat dissipation fin heat exchange pipe groups arrange and can be provided with 120 ~ 400 heat exchanger tubes as required, have spiral heat dissipation fin in heat exchanger tube outside weldings, for quick heat exchange, reach air circulation cooling and exchange.

The upper and lower branch chamber of flue is provided with multiple part, arranges along its length between each portion, adopts spiral heat dissipation fin heat exchange pipe group cascade.On flue, branch chamber first is changed portion and is connected with the flue gas transition passage that upper furnace is installed, on flue, branch chamber is connected with branch chamber under flue respectively by one group of spiral heat dissipation fin heat exchange pipe group, under flue, branch chamber is connected with the heat exchanging part of branch chamber on flue by another group spiral heat dissipation fin heat exchange pipe group, is communicated with successively.Flue assembling is connected with branch chamber end heat exchanging part at frame rear portion.

Charging regulates and anti-back-fire device comprises hopper, regulates discharge flapper, anti-back-fire charging control panel, regulating handle, worm-and-wheel gear, elevator chain, lifting wheel.Hopper is arranged on furnace front, hopper discharging opening is connected with burner hearth feeding-passage, hopper upper left-hand is equipped with worm gear, worm screw, worm shaft is equipped with regulating handle, and lifting wheel is arranged on hopper rear portion by wheel shaft, and wheel shaft one end is connected with lifting wheel, elevator chain is arranged on lifting wheel, elevator chain lower end is connected with, anti-back-fire charging control panel top, for regulating inlet amount, anti-contrary wind, anti-back-fire charging control panel is arranged on rear side of hopper., anti-back-fire charging control panel adopts thick cast iron plate, cast iron plate outer enclosure has fire-proof asbestos plate, regulates discharge flapper (blanking control panel) to be arranged on material bucket Qi portion, regulates discharge flapper to control discharge quantity and switch by handle.

Air blast is arranged on the right side of base, blower outlet and chain are arranged side bellows and are connected, chain row side bellows are provided with the damper of more than three, enter chain row by regulating handle for adjustment and lead to the different intake in combustion chamber, guarantee fuel gradient burning on chain row, reach the abundant burner of fuel.Air-introduced machine is arranged on the left of frame, and the clean hot air of burner hearth and heat exchanger tube external heat switch room is drawn by air-introduced machine, provides thermal source.

Above air-introduced machine tube connector, temperature sensor is installed, temperature sensor be connected with supporting automatic control carry out temperature automatically controlled, guarantee hot blast temperature control within the specific limits.

Air inlet is arranged on rear side of body of heater frame and forward right side, and air inlet is equipped with air filtration web plate.

Functional principal, advantage

Before igniting, fuel is added by conveying mechanism by ground hopper by fuel, feed hopper is placed on chain-grate, chain-grate motion send fuel through the charging of anti-back-fire device, the anti-back-fire device of feed hopper divides into charging regulating gate, by regulate the height of feed gate can regulate the fuel quantity entering fire grate number; Doses after overregulating is evenly distributed on Automatic grate and sends in hot blast burner hearth, is constantly moved forward by Automatic grate.In reach process, fire grate is speed governing reducing motor, and the speed governing knob by speed regulation frequency converter controls the speed of fire grate reach; Simultaneously, there is air blast to be constantly blown in traveling-grate stoker by air, to air blast in burner hearth, below fire grate, have three independently cavitys by 30 degree of oblique inverse air outlets on chain link, each cavity has a by-pass cock, and the air that the size by by-pass cock decides to enter cavity is how many.Make fuel obtain continual continuous burning, the ashes after burning, discharge through fire grate afterbody, through ash hole, ashes are discharged collection; In fuel combustion process, the flue gas produced is by the bright radiating fin heat radiation of stove, extracted out by flue blower fan after heat exchange is fully used again after the heat of discharging in burner hearth is dispelled the heat by fin heat exchange pipe group and discharge after water treatment facilities process, improve its thermal transition efficiency; Normal temperature air is by being inhaled into below through the heat exchange of fin heat exchange pipe group and the bright radiating fin heat exchange of stove, and Heat Room air is heated, and is drawn by air-introduced machine; Thermal source is provided.Meanwhile, carry out speed governing, control wind by temperature sensor and intelligent control device and shut down the temperature controlling blowing machine mouth, reaching temperature automatically controlled.

(1), the utility model hot-blast stove adopts the feeding of chain-arranged type power-saving technology, adopt counter flow combustion mode in the design, namely combustion flame direction and feedstock direction reverse 30 degree upwards, and regulate air quantity by three groups of air doors, by gradient, fuel is progressively burnt completely, this combustion system makes heat smoke flow through fuel surface, facilitates drying and the aqueous vapor evaporation of fuel, makes fuel be easy to catch fire.Uncombusted carbon granules and fuel gas can burn away on top, combustion chamber with high-temperature flue gas stream.High-temperature flue gas after burning brightly enters several groups of heat exchange airduct groups through stove, conflux after by air-introduced machine draw enter expansion chamber dedusting after discharge.Because hot-blast stove rear portion is furnished with flue blower fan, hearth combustion mode is tiny structure burning, has so both effectively controlled high wind by the flying dust on fire grate and the burning of unburnt carbon granules blowing up, in turn ensure that the necessary large quantity of air of straw complete combustion of fuel.Due to above-mentioned technology and measure, designed Combustion of Hot Air Furnace efficiency significantly improves, consumption saving about 10% compared with conventional hot blast stove of fuel, and the frequency of over-emitting black exhaust obviously reduces, and reaches cleaning.

(2), the utility model design adopts the bright directly burning heat radiation of finned stove and the heat exchange of finned heat-exchange tube group heat-removal modalities, and the bright radiating fin area of dissipation of stove is large, rapid heat dissipation; Devise more than 120 heat-exchange tubes and be divided into many groups, tube-surface is designed with spiral heat dissipation fin, and form curtain shape, heat exchange runner is long, and area of dissipation is large, and hot-air and flue gas Ge Zouqi road reverse heat-exchange, heat exchanger effectiveness is high.In body of heater, major diameter burner hearth has chain-grate, can make full combustion of fuel.The upper and lower heat exchanging chamber of heat-exchange tube group divides multiple heat exchanging part, each heat exchanging part inside comprises the heat exchanger tube of some same diameter, multiple heat exchanging part arranges along body of heater length direction and is connected in series one by one, the heat exchanging part being positioned at body of heater front end is communicated with above burner hearth, the heat exchanging part be positioned at above body of heater end is provided with exhaust opening, exhaust opening place is provided with smoke evacuation air-introduced machine, makes burner hearth form tiny structure burning.The distribution of set of heat exchange tubes is determined according to the heat exchange demand of relevant position in body of heater, thus can improve heat exchanger effectiveness, reduces heat energy loss.Be interconnected between adjacent heat exchange portion in heat exchanging chamber, and separated by dividing plate between the heat exchanging part that homonymy is adjacent, this arrangement processing is simple, in heat exchanger tube, thermal current produces mixed flow in heat exchanging part, produce the hot blast temperature difference between various heat exchange pipe group and same set of heat exchange tubes and another to organize and form the hot blast temperature difference, in heat exchanging part, be able to abundant mixing, be beneficial to next stage heat exchange; The deposition cigarette ash of corner can be rolled again by mixed flow simultaneously, along with thermal current is discharged, plays automatic ash removing cleaning action in pipe.Adopt floss hole forced fume exhaust mode, be both conducive to preheating and controlled hot blast programming rate, negative pressure can be utilized again to remove heat exchange part dust, make hot-blast stove possess automatic cleaning function.

(3), body of heater rear wall and rear wall arrange air inlet, air enters body of heater Heat Room by air inlet, after set of heat exchange tubes spiral heat dissipation fin reverse heat-exchange and the heat exchange of stove bright radiating fin circumference, rotation direction is to sidewall of the furnace body place hot-blast outlet, hot-blast outlet place is provided with air-introduced machine, hot blast being discharged body of heater, providing thermal source for drying.Due to air inlet be arranged on body of heater after, sidewall, extraneous air carries out heat exchange through set of heat exchange tubes reverse heat-exchange and the circumference heat exchange of stove bright radiating fin and body of heater, makes full use of the heat energy at sidewall of the furnace body place, decreases heat-energy losses, improve heat exchanger effectiveness.Hot-blast outlet is arranged on the burner hearth sidewall place of high temperature, directly can utilize the heat energy at burner hearth sidewall place, prevent it to run off, further increase heat exchanger effectiveness.Therefore, the thermal current in heat exchanger tube is contrary with the flow direction of extraneous air, and the thermal current in heat exchanger tube flows along flow process to exhaust opening direction, and its temperature is more and more lower, finally discharges from the exhaust opening of body of heater end; And extraneous air flows along reverse flow process thermotropism wind Way out, its temperature is more and more higher, finally discharges from the hot-blast outlet of sidewall of the furnace body.

indirect chain-arranged type straw hot blast heater feature:

1, the design studies of structure of furnace body, this indirect chain-arranged type straw hot blast heater devises the heat exchange structure form that unique main heat exchange of radiating fin chip fire box combines with the secondary heat exchange of band spiral heat dissipation finned heat pipe group, by structure and the heat conduction governing system of fuel direct gradient burning on special auto chain fire grate, make stalk briquette fuel Thorough combustion in combustion chamber, quick conductive, can the General Promotion thermal efficiency, realize the Efficient Conversion of biomass energy to heat energy.

2, the research and development of digital control system, by reload temperature sensing system, monitor leaving air temp in real time, and adjustment blower fan, charging rate control straw hot blast heater heat supply temperature and control feed time and inlet amount.

3, the Automation Design of feeding system, installs mechanical automatic feed mechanism additional, chain-arranged type automatic feed mechanism by design, reduces the labour intensity of workman.

4, the design of smoke dust system, by design flue structure, improves ash discharging gear and filtrating smoke dust flue gas system, guarantees that smog and smoke evacuation meet national requirements for environmental protection, and realize the UTILIZATION OF VESIDUAL HEAT IN of flue gas by cycle structure design.

5, auto-control Design, point " manually " and " automatically " pattern.Devise two cover control systems, a set of is master control case part, controls material loading motor, blower motor, speed regulating reducing discharging motor; Another set of control cabinet is the control section on body of heater, controls blowing machine, chimney meatus draught fan.

Accompanying drawing explanation

Below with reference to accompanying drawing, the utility model is described in further detail

Fig. 1 is indirect chain-arranged type straw hot-blast stove structural front view.

Fig. 2 is indirect chain-arranged type straw hot-blast stove structure right view (having air inlet)

Fig. 3 is the radiating fin chip firing space device structural representation of indirect chain-arranged type straw hot-blast stove.

Fig. 4 is the helical fin formula radiating tube group device schematic diagram of indirect chain-arranged type straw hot-blast stove.

Fig. 5 is charging adjustment and the firebreak device structural representation of indirect chain-arranged type straw hot-blast stove.

Fig. 6 is charging adjustment and the firebreak device top view of indirect chain-arranged type straw hot-blast stove.

Detailed description of the invention

With reference to accompanying drawing 1 ~ 6, indirect chain-arranged type straw hot blast heater is made up of body of heater, the bright device of radiating fin chip stove, spiral heat dissipation finned heat pipe group device, charging adjustment and anti-back-fire device, automatically chain arranging device, air blast 30, air-introduced machine 34, flue blower fan 25.

Described body of heater comprises Heat Room 22, frame 21, base 1, fire door 31, air blast air inlet adjustment handle, damper 29, heat insulation shrouding 20, air inlet 33, air inlet screen plate 32.Base 1 top is connected with frame 21.

The bright device of radiating fin chip stove comprises burner hearth 19, radiating fin 18, feeding-passage 6, auxiliary combustion passage 5, flue gas transition passage 35.It is anterior that burner hearth 19 is arranged on base 1, and burner hearth 19 diameter can be between 1.2 ~ 2m depending on stove amount of heat.Be provided with feeding-passage 6 bottom burner hearth 19, for carrying stalk fuel, be provided with flue gas transition passage 35 on burner hearth 19 top, burner hearth 19 rear portion is provided with auxiliary combustion passage 5, and radiating fin 18 is equipped with in burner hearth 19 outside, for heat radiation, heat exchange.By the bright and spiral heat dissipation fin heat pipe group of stove, outer and body space forms in heat dissipation chamber.

Described automatic chain arranging device comprises chain-grate 4, chain row transmission speed reducer 10, chain row driving motor 11, drive sprocket 8, driven sprocket 2, power transmission shaft 9, tension mechanism 12.Chain-grate 4 is arranged on burner hearth 19 bottom and base 1, it is inner that drive sprocket 8, driven sprocket 2 are arranged on base 1 by power transmission shaft 9, chain-grate 4 is sleeved on drive sprocket 8 and driven sprocket 2, chain row transmission speed reducer 10 is arranged on the anterior side of base 1, chain row driving motor 11 output shaft is arranged transmission speed reducer 10 with chain and is connected, and chain row transmission speed reducer 10 output shaft is connected with drive sprocket 8 by shaft coupling, power transmission shaft 9.Chain-grate 4 is set with on drive sprocket 8, driven sprocket 2, and when fuel is when burning, chain-grate 4 also in slow operation, thus destroys block fuel, and making it cannot slagging scorification, and outlet due to chain upset can fragmentation slagging scorification.This chain-grate not slagging scorification technology, makes hot-blast stove use more high-efficient automatic.Base 1 rear portion is provided with slag notch 7 near chain-grate 4 rear end, and chain-grate 4 rear end lower device has dirt-excluding bucket 3.

Spiral heat dissipation finned heat pipe group device to comprise on spiral heat dissipation fin heat exchange pipe group 24, flue branch chamber 28, flue fan interface 26 under branch chamber 27, flue.Spiral heat dissipation fin heat exchange pipe group 24 is arranged on burner hearth rear portion, progressively row is vertical, many groups spiral heat dissipation fin heat exchange pipe group 24 arranges and can be provided with 120 ~ 400 heat exchanger tubes as required, spiral heat dissipation fin 36 is had in heat exchanger tube outside weldings, for quick heat exchange, reach air circulation cooling and exchange.

The upper and lower branch chamber of flue is provided with multiple part, arranges along its length between each portion, adopts spiral heat dissipation fin heat exchange pipe group 24 cascade.On flue, branch chamber 27 first is changed portion and is connected with the flue gas transition passage 35 that burner hearth 19 top is installed, on flue, branch chamber 27 is connected with branch chamber under flue 28 respectively by one group of spiral heat dissipation fin heat exchange pipe group 24, under flue, branch chamber 28 is connected with the heat exchanging part of branch chamber on flue 27 by another group spiral heat dissipation fin heat exchange pipe group 24, is communicated with successively.Flue blower fan 25 is arranged on frame 21 rear portion and is connected with branch chamber end heat exchanging part.

Charging regulates and anti-back-fire device comprises hopper 15, regulates discharge flapper 13, anti-back-fire charging control panel 14, regulating handle 37, worm-and-wheel gear, elevator chain 16, lifting wheel 17.It is anterior that hopper 15 is arranged on burner hearth 19, hopper 15 discharging opening is connected with burner hearth feeding-passage 6, hopper 15 upper left-hand is equipped with worm gear 38, worm screw 39, worm shaft 41 is equipped with regulating handle 37, lifting wheel 17 is arranged on hopper 15 rear portion by wheel shaft 40, wheel shaft 40 one end is connected with lifting wheel 17, elevator chain 16 is arranged on lifting wheel 17, elevator chain 16 lower end is connected with, anti-back-fire charging control panel 14 top, for regulating inlet amount, anti-contrary wind, anti-back-fire charging control panel 14 is arranged on rear side of hopper 15., anti-back-fire charging control panel 14 adopts thick cast iron plate, cast iron plate outer enclosure has fire-proof asbestos plate, regulates discharge flapper (blanking control panel) 13 to be arranged on hopper 15 Qi portion, regulates discharge flapper 13 to control discharge quantity and switch by handle 43.

Air blast 30 is arranged on the right side of base 1, air blast 30 air outlet and chain are arranged side bellows and are connected, chain row side bellows are provided with the damper 29 of more than three, enter chain row by regulating handle for adjustment and lead to the different intake in combustion chamber, guarantee fuel gradient burning on chain row, reach the abundant burner of fuel.Air-introduced machine 34 is arranged on the left of frame 21, and the clean hot air of burner hearth 19 with heat exchanger tube external heat switch room is drawn by air-introduced machine 34, provides thermal source.

Above air-introduced machine 34 tube connector, temperature sensor 42 is installed, temperature sensor 42 be connected with supporting automatic control carry out temperature automatically controlled, guarantee hot blast temperature control within the specific limits.

On rear side of the frame 21 that air inlet 33 is arranged on body of heater and forward right side, air inlet 33 is equipped with air filtration web plate 32.

Claims (7)

1. an indirect chain-arranged type straw hot blast heater, is characterized in that: by body of heater, the bright device of radiating fin chip stove, spiral heat dissipation finned heat pipe group device, charging regulates and anti-back-fire device, automatically chain arranging device, air blast, air-introduced machine, flue blower fan form;

Described body of heater comprises Heat Room, frame, base, fire door, air blast air inlet adjustment handle, damper, heat insulation shrouding, air inlet, air inlet screen plate; Base top is connected with frame;

The bright device of radiating fin chip stove comprises burner hearth, radiating fin, feeding-passage, auxiliary combustion passage and flue gas transition passage; Burner hearth is arranged on base front portion, and burner hearth bottom is provided with feeding-passage, and for carrying stalk fuel, be provided with flue gas transition passage in upper furnace, burner hearth rear portion is provided with auxiliary combustion passage, and radiating fin is equipped with in burner hearth outside, for heat radiation, heat exchange;

Described automatic chain arranging device comprises chain-grate, chain row transmission speed reducer, chain row driving motor, drive sprocket, driven sprocket, power transmission shaft and tension mechanism; Chain-grate is arranged on lower furnace portion and base, drive sprocket, driven sprocket are arranged on chassis interior by power transmission shaft, chain-grate is sleeved on drive sprocket and driven sprocket, chain row transmission speed reducer is arranged on the anterior side of base, chain row driving motor output shaft is arranged transmission speed reducer with chain and is connected, and chain row transmission speed reducer output shaft is connected with drive sprocket by shaft coupling, power transmission shaft; Chain-grate suit drive sprocket, on driven sprocket, when fuel is when burning, chain-grate also in slow operation, thus destroys block fuel, and making it cannot slagging scorification, and outlet is due to chain upset fragmentation slagging scorification;

Spiral heat dissipation finned heat pipe group device to comprise on spiral heat dissipation fin heat exchange pipe group, flue branch chamber and flue fan interface under branch chamber, flue; Spiral heat dissipation fin heat exchange pipe group is arranged on burner hearth rear portion, and progressively row is vertical, has spiral heat dissipation fin in heat exchanger tube outside weldings, for quick heat exchange, reaches air circulation cooling and exchanges;

The upper and lower branch chamber of flue is provided with multiple part, arranges along its length between each portion, adopts spiral heat dissipation fin heat exchange pipe group cascade; On flue, branch chamber first is changed portion and is connected with the flue gas transition passage that upper furnace is installed, on flue, branch chamber is connected with branch chamber under flue respectively by one group of spiral heat dissipation fin heat exchange pipe group, under flue, branch chamber is connected with the heat exchanging part of branch chamber on flue by another group spiral heat dissipation fin heat exchange pipe group, is communicated with successively; Flue assembling is connected with branch chamber end heat exchanging part at frame rear portion;

Charging regulates and anti-back-fire device comprises hopper, regulates discharge flapper, anti-back-fire charging control panel, regulating handle, worm-and-wheel gear, elevator chain, lifting wheel; Hopper is arranged on furnace front, hopper discharging opening is connected with burner hearth feeding-passage, hopper upper left-hand is equipped with worm gear, worm screw, worm shaft is equipped with regulating handle, and lifting wheel is arranged on hopper rear portion by wheel shaft, and wheel shaft one end is connected with lifting wheel, elevator chain is arranged on lifting wheel, elevator chain lower end is connected with, anti-back-fire charging control panel top, and for regulating inlet amount, anti-contrary wind, anti-back-fire charging control panel is arranged on rear side of hopper; Anti-back-fire charging control panel adopts thick cast iron plate, and cast iron plate outer enclosure has fire-proof asbestos plate, regulates discharge flapper to be arranged on material bucket Qi portion, regulates discharge flapper to control discharge quantity and switch by handle;

Air blast is arranged on the right side of base, blower outlet and chain are arranged side bellows and are connected, chain row side bellows are provided with the damper of more than three, enter chain row by regulating handle for adjustment and lead to the different intake in combustion chamber, guarantee fuel gradient burning on chain row, reach the abundant burner of fuel; Air-introduced machine is arranged on the left of frame, and the clean hot air of burner hearth and heat exchanger tube external heat switch room is drawn by air-introduced machine, provides thermal source.

2. indirect chain-arranged type straw hot blast heater according to claim 1, it is characterized in that: above air-introduced machine tube connector, temperature sensor is installed, temperature sensor be connected with supporting automatic control carry out temperature automatically controlled, guarantee hot blast temperature control within the specific limits.

3. indirect chain-arranged type straw hot blast heater according to claim 1, is characterized in that: air inlet is arranged on rear side of body of heater frame and forward right side, and air inlet is equipped with air filtration web plate.

4. indirect chain-arranged type straw hot blast heater according to claim 1, is characterized in that: furnace diameter can be between 1.2 ~ 2mm depending on stove amount of heat.

5. indirect chain-arranged type straw hot blast heater according to claim 1, is characterized in that: by the bright and set of heat exchange tubes of stove, outer and body space forms in heat dissipation chamber.

6. indirect chain-arranged type straw hot blast heater according to claim 1, is characterized in that: base rear portion is provided with slag notch near chain-grate rear end, and chain-grate rear end lower device has dirt-excluding bucket.

7. indirect chain-arranged type straw hot blast heater according to claim 1, is characterized in that: many group spiral heat dissipation fin heat exchange pipe groups arrange and are provided with 120 ~ 400 heat exchanger tubes as required.