CN108571818A - A kind of high-efficient hot air furnace and efficient circulation hot-blast stove - Google Patents
A kind of high-efficient hot air furnace and efficient circulation hot-blast stove Download PDFInfo
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- CN108571818A CN108571818A CN201810660635.2A CN201810660635A CN108571818A CN 108571818 A CN108571818 A CN 108571818A CN 201810660635 A CN201810660635 A CN 201810660635A CN 108571818 A CN108571818 A CN 108571818A
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- air
- burner hearth
- hot
- room
- heat
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- 206010016754 Flashback Diseases 0.000 claims abstract description 30
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 84
- 238000001035 drying Methods 0.000 claims description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- 239000000779 smoke Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 239000003500 flue dust Substances 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000003245 coal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/008—Air heaters using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of high-efficient hot air furnace and efficient circulation hot-blast stoves comprising furnace body is fixedly installed stabilizer blade in the bottom of furnace body, burner hearth is also arranged in furnace body, Heat Room is also arranged in burner hearth；There are gaps between furnace body and burner hearth, form hot wind access, and there are gaps between burner hearth sidewall and Heat Room side wall, form flame flash-back；Inboard wall of burner hearth is also communicated with wind channel tube with heat exchange chamber outer wall, and wind channel tube is provided with an at least row on the flame flash-back between inboard wall of burner hearth and heat exchange chamber outer wall, often arranges at least one；There are gaps between lower furnace portion and Heat Room bottom, form heat source room, and combustible heat source is equipped in the heat source room, the charge door being connected to furnace body is offered on the hearth wall of heat source chamber region, discharge port is further opened in heat source room's region burner hearth bottom.The present invention improves heat exchange area in hot-blast stove under the premise of not increasing hot-blast stove inner space, again without increasing manufacturing cost while promoting the thermal efficiency.
Description
Technical field
The present invention relates to drying equipment technology more particularly to a kind of high-efficient hot air furnaces and efficient circulation hot-blast stove.
Background technology
After grain harvest, technique is often dried, and the drying of grain be unable to do without hot-blast stove, hot-blast stove is grain
The dry of food provides heat source so that the grain of harvest dehydrates in a short time.Currently, usually making in grain drying technology
It uses indirect hot air stove to be dried as heat source, because it can prevent from polluting, prevents the flue gas in drying process to grain
Caused by pollute.The most essential problem of indirect hot air stove is exactly heat exchange.Heat exchange area is bigger, and thermal conversion rate is higher, heat
The energy-saving effect of wind furnace is better, and the service life of furnace body and heat exchanger is longer.Conversely, the size of heat exchange area can also be from flue gas temperature
It is identified on degree.Smoke temperature is lower, and thermal conversion rate is higher, and heat exchange area is bigger.But because by installation space, environment
Impression, heat exchange area is commonly little, cannot make full use of.
Simultaneously nowadays, two big problems that indirect hot air stove also has are：(1) it can be polluted after its burning, because
It is insufficient to burn, some flue dust can be more or less carried in the gas after burning, air pollution can be caused by being directly discharged into air；
(2) it is connected with drying room, then cannot control drying gas circulation well, causes drying gas that can only carry out a grain
Food drying, causes a large amount of energy waste.
Such as the hot-blast stove in the prior art for grain drying, application No. is CN201720434042.5, disclosures
The inner cavity in a kind of hot-blast stove for grain drying, including the Qian Cang being set up in parallel and rear storehouse, Qian Cang and rear storehouse is interconnected,
Air inlet is provided on the squab panel in storehouse afterwards, hot wind delivery outlet is provided on the top plate of the upper ends Qian Cang, is arranged in the inner cavity in preceding storehouse
There are furnace body and air bells cap；Horizontally disposed upper surge bunker, lower surge bunker are carried in the inner cavity in storehouse afterwards and is connected to two bufferings
Standpipe between storehouse.It will be evident that the hot-blast stove increases the area of heat exchanger channels, gas exchanges heat by the heat exchange pipeline lengthened
Afterwards, stoving process is carried out to grain.However while its increase heat exchanger channels, the area of machine is considerably increased, this is resulted in
The increase of manufacturing cost, at the same itself and drying gas circulation is used, caused by the energy waste, meanwhile, do not carry
Add thermogenetic flue gas to handle to pair, gets up relatively very not environmentally.
And another prior art, a kind of fuel gas hot-blast stove, application No. is CN201711233472.1, and it discloses one kind
Fuel gas hot-blast stove, including:Gas flame, nozzle, backwind tube, lower ash bucket, combustion chamber of hot-blast stove, return air chamber, main air compartment, outlet air
Pipe, hot-flow flue go out air compartment, hot wind exchange pipe, hot-flow flue inlet air plenum, cool air hose, adjustable damper, axle of the air door, hot wind exhaust outlet,
Axle of the air door connecting lever, electric screw motor, electric screw, deduster, deduster exhaust pipe, middle partition board, air filter, temperature sense
Device；It is characterized in that:Hot-blast stove is equipped with air blower, and exchanger is equipped with lower ash bucket, and unloading valve automatic gas-locking unloads ash；Hot wind is handed over through overheat
It is arranged from air-introduced machine to chimney through deduster after changing；There is hot wind to exchange pipe between the main air compartment in second heat air duct and return air chamber；With stainless
Steel material makes；Air exchanges pipe by hot wind and exchanges heat, reaches secondary hot-air exhaust outlet；Electricity is controlled by temperature-sensitive regulating device
Dynamic screw rod makes damper carry out sensitive adjusting, reaches constant temperature outlet air.Added although the technical program also exchanges heat passage
It is long, however it equally causes the increase of machine inner area, to improve manufacturing cost, and, which specially sets
Deduster is counted so that whole device complexity is cumbersome.Meanwhile drying gas cannot be controlled well and recycled, very not
It is convenient.
Based on the above, it is necessary to provide one kind can increasing heat exchanger effectiveness without excessive increase machine volume, burning is filled
Divide smoke dust, the hot-blast stove of drying gas circulation can be accurately controlled.
Invention content
In order to solve the above technical problems, a kind of high-efficient hot air furnace of present invention offer and efficient circulation hot-blast stove.
A kind of high-efficient hot air furnace provided by the invention, including furnace body 1 are fixedly installed stabilizer blade in 1 bottom of furnace body
11, the stabilizer blade 11 can be the cushion block of support furnace body 1, or wheel is so that entire furnace body 1 is moved easily, in stove
It is also arranged with burner hearth 2 in body 1, Heat Room 3 is also arranged in burner hearth 2, preferred burner hearth 2 is welded with furnace body 1 herein, while
Can be the modes such as riveting；There are gap between furnace body 1 and burner hearth 2, formed for heat exchange wind by hot wind access 21, it is described
There are gap between 3 side wall of 2 side wall of burner hearth and Heat Room, formed for the flue gas after heating flame and burning by flame flash-back
31；2 inner wall of the burner hearth is also communicated with wind channel tube 32 with 3 outer wall of Heat Room, and wind channel tube 32 is outside 2 inner wall of burner hearth and Heat Room 3
It is provided with an at least row on flame flash-back 31 between wall, often arranges at least one, Heat Room 3 is fixed on burner hearth 2 by wind channel tube 32
It is interior, the hot wind access 21 between Heat Room 3 and furnace body 1 and burner hearth 2 is connected to, gas passes through wind channel tube after the heating of Heat Room 3
32 enter hot wind access 21, while combustible heat source 41, to wind channel tube 32, Heat Room 3,2 wall continuous heating of burner hearth, gas is exchanging heat
Room 3, wind channel tube 32, the heating of 21 circulation continuous of hot wind access, are finally discharged by the hot-blast outlet 8 of 1 lower part of furnace body；The burner hearth 2
There are gaps between 3 bottom of lower part and Heat Room, form heat source room 4, and heat source room 4 ensures have with 3 bottom of Heat Room, wind channel tube 32
Certain distance ensures that the flame envelope exchange hot cell 3 for the flame that combustible heat source 41 generates, wind channel tube 32 are heated；In the heat source
Combustible heat source 41 is equipped in room 4, herein preferably, combustible heat source 41 is raw coal, and raw coal is inserted heat source room 4 by charge door 42
It inside lights, the flame envelope exchange hot cell of fired coal combustion, wind channel tube 32 are heated, and are heated to burner hearth 2, to which gas is exchanging heat
Room 3, wind channel tube 32,21 circulating-heating of hot wind access, certain combustible heat source 41 can also be natural gas, and natural gas line passes through
Charge door 42 is passed through in furnace body 1, realizes igniting heating；Or combustible heat source 41 is biological combustible substance；In 4 region of heat source room
The charge door 42 being connected to furnace body 1 is offered on 2 wall of burner hearth, charge door 42 is door common in the art herein,
User can open it and add fuel in heat source room 4, and discharge port 43 is further opened in 2 bottom of burner hearth in 4 region of heat source room,
This is structure common in the art, and the waste fuel after burning is discharged by discharge port 43；In 2 top of the burner hearth, Heat Room 3
It is also fixed with air ducting 5,5 top of the air ducting is fixedly connected with 2 top of burner hearth, bottom and 3 top of Heat Room
It is fixedly connected, the air ducting 5 is a blocks, and effect is to separate hot wind access 21 and flame flash-back 31, real
It now dries gas and burning gases is contactless, it is ensured that drying grain is pollution-free；The air ducting 5 runs through in the vertical direction
Gas passage 51 is opened；51 upper end of gas passage is connected to 6 pipeline of device of air is entered, and described herein enters device of air
6 are introduced into air to be heated in hot-blast stove, enter in Heat Room 3 by air ducting 5；It is also set on the top of the burner hearth 2
There is smoke discharging pipe 7,7 one end of the smoke discharging pipe to be connected to burner hearth 2, the other end run through furnace body 1, the smoke discharging pipe 7 by with
Burner hearth 2 is connected to, and to be connected to flame flash-back 31, stove is discharged by smoke discharging pipe 7 by flame flash-back 31 in burned flame, flue gas
Outside body 1；1 lower part of the furnace body is further opened with hot-blast outlet 8, and the gas after heat exchange after recycling by 8 row of hot-blast outlet for several times
Go out, be preferably circumscribed with pendulum wind apparatus in hot-blast outlet 8, the hot wind that hot-blast outlet 8 is discharged can be made uniformly to blow to baking
In dry chamber or on article to be dried.
It is offered on the region that the flame flash-back 31, flame flash-back 31 are connect with smoke discharging pipe 7 at least one
With hot wind access 21 or enter the oxygen supply through-hole that device of air 6 is connected to because the major reason that combustible heat source 41 generates flue dust is burning
It is insufficient, oxygen supply through-hole is opened up by the air heated in hot wind access 21 or is entered the air that device of air 6 introduces and is passed through combustion flame
Place, it can be ensured that combustible heat source 41 is burnt fully, and the generation of flue dust is avoided.
It is preferred herein, it is offered on the burner hearth 2 in 31 region of flame flash-back at least one with hot wind access
The oxygen supply mouth 8 of 21 connections, during 41 combustion heating of combustible, most of oxygen is entered by the charge door 42 of combustion chamber 4
In it, therefore the combustible 41 of combustion chamber 4 burns completely, and Chang Yinwei oxygen deficiency causes burning not filled in flame flash-back 31
Point, flue dust is generated, therefore the generation that oxygen supply mouth 8 drastically reduces flue dust is opened up, the burning of combustible 41 also saves energy completely
Source improves the efficiency of heating surface.
It is further herein, also extended through equipped with flue tube 52 in the side of air ducting 5, described 52 one end of flue tube with
Flame flash-back 31 is connected to, and the other end is connected to smoke discharging pipe 7, and the flue tube 52 passes through gas passage 51, flue tube 52 to set
Setting can make burned flame, combustion product gases discharge distance increase so that it can preferably be changed with air ducting 5
Heat increases the thermal efficiency, reduces exhaust gas temperature so that air ducting 5 can heat the hot gas to be added of introducing.
The note oxygen mouth 81 being connected to air ducting 5 is opened in 52 upper surface of flue tube.The setting of note oxygen mouth 81 can make
It must enter and flue tube 52 is entered by note oxygen mouth 81 when the gas that device of air 6 introduces enters gas passage 51, so that in flue tube
Flame in 52 burns fully because of oxygen abundance, is further reduced the generation of flue dust, concurrently injected air can be to flue
Gas in pipe 52 cools down, simultaneously as entering device of air 6 introduces air, air pressure is more than in flue tube 52 in gas passage 51
Air pressure so that gas will not be discharged by note oxygen mouth 81 in flue tube 52.
Preferred herein, 7 one end of smoke discharging pipe is connected to burner hearth 2, and the other end is connected to deduster 71；The deduster
71 other ends are connected to 72 pipeline of exhaust fan.Deduster 71, which is arranged, can further ensure that the gas given off does not have flue dust,
Simultaneously as smoke discharging pipe 7 be discharged flue-gas temperature it is very low, can use exhaust fan 72 carry out exhausting, and in traditional handicraft because
It is higher that flue-gas temperature is discharged, its damage can be caused to be not provided with using exhaust fan.It simultaneously, can be with using 72 exhausting of exhaust fan
Increase the degree of combustion of combustible heat source 41.The deduster 71 is deduster common on the market, therefore is not done to its structure at this
It repeats.
Further herein, it includes air blower 61 to enter device of air 6, and gas outlet is connected with 51 upper end of gas passage.
It is described enter device of air 6 extraneous gas pressurized to be heated is blown into hot-blast stove, preferably air blower 61 herein, certainly
It can also be the device that other pressurizations blow air into hot-blast stove.
It is more preferred, it is described enter device of air 6 further include heater 62, the air intake of the heater 62 and air blower 61
It is connected.Heater 62 is added before the air intake of air blower 61, can make into hot-blast stove hot gas to be added in advance into
Row preheating so that the gas temperature higher of hot-blast stove output.
More preferably, it is described enter device of air 6 further include heater 62, filter 63；The filter 63 and heater
62 one end pipeline connections, 62 other end of heater are connected with the air intake of air blower 62.Add before the air intake of air blower 61
If heater 62, it can so that the hot gas to be added into hot-blast stove is preheated in advance so that the gas temperature of hot-blast stove output
Higher is spent, while adding filter 63 in 62 air intake front end of heater can make the gas into hot-blast stove more pure
Only, reduce pollution caused by grain heat-drying technique.
It should be noted that heater 62, filter 63 are all device common in the art, can refer to existing
There is technology dependency structure flow, its structure, workflow is illustrated.
Also, a kind of efficient circulation hot-blast stove of the present invention comprising above-mentioned high-efficient hot air furnace, circulator 9；Make
The hot-blast outlet 8 of used time, high-efficient hot air furnace are connected to drying room bottom, and circulator 9 is connected to drying room top, circulator
9 are connected to high-efficient hot air furnace；After hot gas to be added heats in high-efficient hot air furnace, after being dried into drying room to grain,
Then enter after circulator 9 from drying room top and be again introduced into efficient hot-air stove heat, to realize that gas circulation uses.
The device of air 6 that enters of the high-efficient hot air furnace is arranged in circulator 9, and the air intake for entering device of air 6 is arranged in institute
It states in circulator 9；The circulator 9 includes cycle babinet 91, and dodge gate 92, the work are offered on cycle babinet 91
Dynamic door 92 is hinged with 93 output shaft of pull rod motor, is turned on and off under the action of pull rod motor 93；In the cycle babinet 91
One end offers recyclegas entrance 94, and recyclegas entrance 94 is connected with drying room, the dodge gate when dodge gate 92 is opened
92 block recyclegas entrance 94, and fresh air enters cycle babinet 91 by dodge gate 92；When dodge gate 92 is closed, circulating air
Body enters cycle babinet 91 by drying room by recyclegas entrance 94；The recyclegas entrance 94 is connected with drying room,
The hot-blast outlet 8 of high-efficient hot air furnace is connected with drying room.
Compared with the relevant technologies, the present invention has technique effect below：
(1) present invention improves heat exchange area in hot-blast stove, is being promoted under the premise of not increasing hot-blast stove inner space
Again without increasing manufacturing cost while the thermal efficiency；
(2) present invention to combustible heat source by carrying out abundant oxygen supply so that and it burns fully, reduces the generation of flue dust,
So that whole device is more environmentally friendly；And the present invention because heat exchange area is big, be passed through oxygen to the flue gas of discharge into advancing one
Step cooling can use exhaust fan to carry out exhausting, flue gas be extracted out so that flammable heat so that the flue-gas temperature of discharge is low
The degree of combustion in source increases；
(3) present invention can be by accurately controlling, and control carries out heating, drying using ambient atmos or carries out recyclegas
Heating, drying has saved the energy.
Description of the drawings
Fig. 1 is the structural schematic diagram of high-efficient hot air furnace of the present invention；
Fig. 2 enters device of air 6 and 5 connection relationship diagram of air ducting for high-efficient hot air furnace of the present invention；
Fig. 3 is that the air ducting 5 of high-efficient hot air furnace of the present invention overlooks connection relationship diagram；
Fig. 4 is the structural schematic diagram of efficient circulation hot-blast stove of the present invention；
Fig. 5 is 9 structural schematic diagram of circulator of efficient circulation hot-blast stove of the present invention.
Specific implementation mode
It should be noted that unless otherwise clearly defined and limited, term " setting ", " being arranged ", " being provided with " should do
It broadly understood.It for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.Can be mechanical connection,
It can also be welding riveting.Term " connection " simultaneously, " being connected ", " pipeline connection " can be directly connected, and can also lead to
It crosses intermediary to be indirectly connected, can also be that two components interiors are connected to by pipeline.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In the description of the present invention, it is also necessary to explanation, the orientation of the instructions such as term "upper", "lower", "inner", "outside" or
Position relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Below in conjunction with drawings and embodiments, the invention will be further described.
As shown in Figure 1, a kind of high-efficient hot air furnace disclosed by the invention, including furnace body 1, it is fixed in 1 bottom of furnace body
It is provided with stabilizer blade 11, the stabilizer blade 11 can be the cushion block of support furnace body 1, or wheel is so that 1 side of entire furnace body
Just it moves, burner hearth 2 is also arranged in furnace body 1, Heat Room 3 is also arranged in burner hearth 2, herein preferred burner hearth 2 and furnace body 1
Welding, while may be the modes such as riveting；There are gap between furnace body 1 and burner hearth 2, formed for heat exchange wind by hot wind
Access 21 is formed logical for the flue gas after heating flame and burning there are gap between 3 side wall of 2 side wall of the burner hearth and Heat Room
The flame flash-back 31 crossed；2 inner wall of the burner hearth is also communicated with wind channel tube 32 with 3 outer wall of Heat Room, and wind channel tube 32 is in 2 inner wall of burner hearth
It is provided with an at least row on flame flash-back 31 between 3 outer wall of Heat Room, often arranges at least one, wind channel tube 32 is by Heat Room 3
It is fixed in burner hearth 2, the hot wind access 21 between Heat Room 3 and furnace body 1 and burner hearth 2 is connected to, gas is heated in Heat Room 3
Afterwards, hot wind access 21 is entered by wind channel tube 32, while combustible heat source 41 persistently adds wind channel tube 32, Heat Room 3,2 wall of burner hearth
Heat, gas is in Heat Room 3, wind channel tube 32, the heating of 21 circulation continuous of hot wind access, finally by 8 row of hot-blast outlet of 1 lower part of furnace body
Go out；There are gaps between 3 bottom of 2 lower part of the burner hearth and Heat Room, form heat source room 4, and heat source room 4 ensures and 3 bottom of Heat Room
Portion, wind channel tube 32 have certain distance, ensure that the flame envelope exchange hot cell 3 for the flame that combustible heat source 41 generates, wind channel tube 32 are added
Heat；Combustible heat source 41 is equipped in the heat source room 4, herein preferably, combustible heat source 41 is raw coal, and raw coal is passed through charge door
It is lighted in 42 filling heat source room 4, the flame envelope exchange hot cell of fired coal combustion, wind channel tube 32 are heated, and are heated to burner hearth 2,
To which gas is in Heat Room 3, wind channel tube 32,21 circulating-heating of hot wind access, certain combustible heat source 41 can also be natural gas,
Natural gas line is passed through by charge door 42 in furnace body 1, realizes igniting heating；Or combustible heat source 41 is biological combustible substance；
The charge door 42 being connected to furnace body 1 is offered on 2 wall of burner hearth in 4 region of heat source room, charge door 42 is the prior art herein
In common door, user can open its and add fuel in heat source room 4,4 region of heat source room 2 bottom of burner hearth also
Discharge port 43 is offered, this is structure common in the art, and the waste fuel after burning is discharged by discharge port 43；In the stove
2 top of thorax, Heat Room 3 are also fixed with air ducting 5, and 5 top of the air ducting is fixedly connected with 2 top of burner hearth, bottom
Portion is fixedly connected with 3 top of Heat Room, and the air ducting 5 is a blocks, and effect is to lead to hot wind access 21 with flame
Road 31 is separated, and realizes that drying gas and burning gases are contactless, it is ensured that drying grain is pollution-free；The air ducting 5
Run through in the vertical direction and has opened gas passage 51；51 upper end of gas passage is connected to 6 pipeline of device of air is entered, at this
In the device of air 6 that enters air to be heated is introduced into hot-blast stove, it is described by the entrance Heat Room 3 of air ducting 5
Enter device of air 6 and be preferably located on 1 upper end of furnace body, however it can also be arranged and passes through pipeline in other places and connect with hot-blast stove
It is logical；It is additionally provided with smoke discharging pipe 7 on the top of the burner hearth 2,7 one end of the smoke discharging pipe is connected to burner hearth 2, and the other end runs through stove
Body 1, the smoke discharging pipe 7 with burner hearth 2 by being connected to, and to be connected to flame flash-back 31, burned flame, flue gas are led to by flame
Road 31 is discharged by smoke discharging pipe 7 outside furnace body 1；1 lower part of the furnace body is further opened with hot-blast outlet 8, and the gas after heat exchange passes through
It is discharged by hot-blast outlet 8 after recycling for several times, is preferably circumscribed with pendulum wind apparatus in hot-blast outlet 8, can make hot-blast outlet 8
The hot wind of discharge uniformly blows in drying room or on article to be dried.
When in use, gas to be heated sprays into the gas passage 51 of air ducting 5 by entering the pressurization of device of air 6, then
Entered in Heat Room 3 by gas passage 51, the combustible heat source 41 of heat source room 4 is lighted at this time, and exchange hot cell 3, burner hearth 2 are added
Heat, because combustible heat source 41 has certain distance, the flame flame envelope exchange hot cell 3 of combustible heat source 41 to be heated apart from Heat Room 3,
Its thermal efficiency is further promoted.
After hot gas to be added is heated in Heat Room 3, entered in hot wind access 21 by wind channel tube 32.Meanwhile being located at
Wind channel tube 32 in flame flash-back 31 is heated by the flame of combustible heat source 41, is further heated by the gas of wind channel tube 32,
It subsequently enters in hot wind access 21, is further heated by 2 wall of burner hearth in hot wind access 21.The gas of subsequent section heating is by warm
8 blowout of wind outlet, portion gas is in Heat Room 3, wind channel tube 32,21 circulating-heating of hot wind access until being blown out by hot-blast outlet 8.
Simultaneously, the air ducting 5 that top is fixedly connected with 2 top of burner hearth, bottom is fixedly connected with 3 top of Heat Room by
Heating temperature to 31 Flame of flame flash-back, flue gas increases, and to the hot gas to be added entered in hot-blast stove further add
Heat.
And, heat-barrier material can be heated between furnace body 1 and burner hearth 2, heat-barrier material is common heat-insulated on the market
Material, so that furnace body 1 is notheated temperature raising.
Embodiment 1
As shown in Figure 1, in the present embodiment, being connect with smoke discharging pipe 7 in the flame flash-back 31, flame flash-back 31
Offered on region it is at least one with hot wind access 21 or enter the oxygen supply through-hole that device of air 6 is connected to because combustible heat source 41 is produced
The major reason of raw flue dust is that burning is insufficient, opens up oxygen supply through-hole by the air heated in hot wind access 21 or enters device of air 6
The air of introducing is passed through at combustion flame, it can be ensured that combustible heat source 41 is burnt fully, and the generation of flue dust is avoided.
At least one oxygen supply being connected to hot wind access 21 is offered on the burner hearth 2 in 31 region of flame flash-back
Mouth 8, during 41 combustion heating of combustible, most of oxygen is entered by the charge door 42 of combustion chamber 4 in it, therefore combustion chamber
4 combustible 41 burns completely, and in flame flash-back 31 Chang Yinwei oxygen deficiency cause to burn it is insufficient, generate flue dust, therefore
The generation that oxygen supply mouth 8 drastically reduces flue dust is opened up, the burning of combustible 41 also saves the energy completely, improves heating effect
Rate, and because air pressure is less than air pressure in hot wind access 21, therefore the oxygen-containing abundant gas in hot wind access 21 in flame flash-back 31
Flame flash-back 31 can be entered by oxygen supply mouth 8, and the polluted gas in flame flash-back 31 will not enter in hot wind access 21.
Embodiment 2
As shown in figure 3, the preferred embodiment as embodiment 1 is also passed through in the side of air ducting 5 in the present embodiment
It is equipped with flue tube 52, described 52 one end of flue tube is connected to flame flash-back 31, and the other end is connected to smoke discharging pipe 7, described
Flue tube 52 passes through gas passage 51, the setting of flue tube 52 that burned flame, combustion product gases discharge distance can be made to increase,
It makes it possible to and preferably exchanges heat with air ducting 5, so that air ducting 5 can heat the hot gas to be added of introducing
Body increases the thermal efficiency, reduces exhaust gas temperature.
The note oxygen mouth 81 being connected to air ducting 5 is opened in 52 upper surface of flue tube.The setting of note oxygen mouth 81 can make
It must enter and flue tube 52 is entered by note oxygen mouth 81 when the gas that device of air 6 introduces enters gas passage 51, so that in flue tube
Flame in 52 burns fully because of oxygen abundance, is further reduced the generation of flue dust, concurrently injected air can be to flue
Gas in pipe 52 cools down so that exhaust fan can be arranged, simultaneously as entering device of air 6 introduces air, gas passage 51
Interior air pressure is more than air pressure in flue tube 52 so that gas will not be discharged by note oxygen mouth 81 in flue tube 52.
As different from Example 1, the present embodiment is provided with flue tube 52, and the setting of flue tube 52 can make burning
Flame, combustion product gases discharge distance increase so that it can preferably exchange heat with air ducting 5, so that wind-guiding fills
The hot gas to be added of introducing can be heated by setting 5, increased the thermal efficiency, reduced exhaust gas temperature.And the setting for noting oxygen mouth 81 can be with
Oxygen is inwardly provided, ensures that oxygen abundance is abundant to burning, is further reduced the generation of flue dust, concurrently injected air can be with
Cool down to the gas in flue tube 52.
Embodiment 3
As shown in Figure 1, the preferred embodiment as above-described embodiment, in the present embodiment, 7 one end of smoke discharging pipe and burner hearth
2 connections, the other end are connected to deduster 71；71 other end of the deduster is connected to 72 pipeline of exhaust fan.Deduster is set
71 can further ensure that the gas given off does not have flue dust, simultaneously as the flue-gas temperature that smoke discharging pipe 7 is discharged is very low, it can
To use exhaust fan 72 to carry out exhausting, and its damage can be led to using exhaust fan because discharge flue-gas temperature is higher in traditional handicraft
It is bad to be not provided with.Simultaneously, using 72 exhausting of exhaust fan, the degree of combustion of combustible heat source 41 can be increased.The deduster 71
For deduster common on the market, therefore its structure is not repeated at this.
As shown in Fig. 2, it includes air blower 61 to enter device of air 6, gas outlet is connected with 51 upper end of gas passage.It is described enter
Extraneous gas pressurized to be heated is blown into hot-blast stove by device of air 6, herein preferably air blower 61, naturally it is also possible to
It is the device that other pressurizations blow air into hot-blast stove.
It is described enter device of air 6 further include heater 62, the heater 62 is connected with the air intake of air blower 61.In drum
Heater 62 is added before the air intake of wind turbine 61, can so that the hot gas to be added into hot-blast stove is preheated in advance so that
The gas temperature higher of hot-blast stove output.
It is described enter device of air 6 further include heater 62, filter 63；The filter 63 connects with 62 one end pipeline of heater
Logical, 62 other end of heater is connected with the air intake of air blower 62.Heater 62 is added before the air intake of air blower 61, it can
So that the hot gas to be added into hot-blast stove is preheated in advance so that the gas temperature higher of hot-blast stove output, while
62 air intake front end of heater, which adds filter 63, can make the gas entered in hot-blast stove more pure, reduce grain baking
It is polluted caused by dry technique.
It should be noted that heater 62, filter 63 are all device common in the art, can refer to existing
There is technology dependency structure flow, its structure, workflow is illustrated.
The present embodiment can be eradicated relative to above-described embodiment, the degree of combustion bigger of combustible heat source 41 in discharge gas
Flue dust, and thermal efficiency bigger.
Meanwhile as shown in figure 4, a kind of efficient circulation hot-blast stove provided by the invention comprising above-mentioned high-efficient hot air furnace,
Circulator 9；When in use, the hot-blast outlet 8 of high-efficient hot air furnace is connected to drying room bottom, in circulator 9 and drying room
Portion is connected to, and circulator 9 is connected to high-efficient hot air furnace；After hot gas to be added heats in high-efficient hot air furnace, into drying room pair
After grain is dried, then enters after circulator 9 from drying room top and be again introduced into efficient hot-air stove heat, to realize
Gas circulation uses.Preferred herein, the setting of circulator 9 can also be arranged at 1 top of furnace body, certainly its in other portions
Position.
As shown in figure 5, the device of air 6 that enters of the high-efficient hot air furnace is arranged in circulator 9, enter device of air 6 enters gas
Mouth is arranged in the circulator 9；The circulator 9 includes cycle babinet 91, and activity is offered on cycle babinet 91
Door 92, the dodge gate 92 is hinged with 93 output shaft of pull rod motor, is turned on and off under the action of pull rod motor 93；Described
91 one end of cycle babinet offers recyclegas entrance 94, and recyclegas entrance 94 is connected with drying room, when dodge gate 92 is beaten
Dodge gate 92 blocks recyclegas entrance 94 when opening, and fresh air enters cycle babinet 91 by dodge gate 92；When dodge gate 92 closes
When closing, recyclegas enters cycle babinet 91 by drying room by recyclegas entrance 94；The recyclegas entrance 94 and baking
Dry chamber is connected, and the hot-blast outlet 8 of high-efficient hot air furnace is connected with drying room.Temperature is also provided in cycle babinet 91 to pass
Sensor, user can open dodge gate 92 and suck outside air according to temperature sensor feedback when temperature value is higher than setting
Cool down, when temperature is less than setting, open dodge gate 92, gas recycles in the device, ensures that temperature is stablized, moisture stable
Deng.
Another variant embodiment of a kind of efficient circulation hot-blast stove as the present invention, in the circulating box of circulator 9
It is additionally provided with temperature sensor in body 91, is connect with PLC controller signal, the PLC controller is also electrically connected with pull rod motor 93
It connects, can control pull rod motor 93 according to the signal of temperature sensor feedback and open dodge gate 92, or close dodge gate 92.
For example, by the way that a rated temperature value is arranged in PLC controller, when temperature value is higher than setting, opens dodge gate 92 and suck
Outside air cools down, and when temperature is less than setting, opens dodge gate 92, and gas recycles in the device, ensures that temperature is stablized,
Moisture stable etc..
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of high-efficient hot air furnace, including furnace body (1) are fixedly installed stabilizer blade (11), feature in described furnace body (1) bottom
It is：It is also arranged with burner hearth (2) in furnace body (1), Heat Room (3) is also arranged in burner hearth (2)；In furnace body (1) and burner hearth
(2) there are gap between, hot wind access (21) is formed, there are gap between burner hearth (2) side wall and Heat Room (3) side wall,
Form flame flash-back (31)；Burner hearth (2) inner wall is also communicated with wind channel tube (32), wind channel tube (32) with Heat Room (3) outer wall
It is provided with an at least row on flame flash-back (31) between burner hearth (2) inner wall and Heat Room (3) outer wall, is often arranged at least one；
There are gaps between burner hearth (2) lower part and Heat Room (3) bottom, form heat source room (4), are set in the heat source room (4)
There is combustible heat source (41), the charge door (42) being connected to furnace body (1) is offered on burner hearth (2) wall in heat source room (4) region,
Burner hearth (2) bottom in heat source room (4) region is further opened with discharge port (43)；It is also solid in the burner hearth (2) top, Heat Room (3)
Surely it is equipped with air ducting (5), is fixedly connected with burner hearth (2) top at the top of the air ducting (5), bottom and Heat Room (3)
Top is fixedly connected；The air ducting (5) runs through in the vertical direction has opened gas passage (51)；The gas is logical
Road (51) upper end is connected to device of air (6) pipeline is entered；It is additionally provided with smoke discharging pipe (7), the smoke evacuation on the top of the burner hearth (2)
Pipeline (7) one end is connected to burner hearth (2), and the other end runs through furnace body (1)；Furnace body (1) lower part is further opened with hot-blast outlet
(8)。
2. a kind of high-efficient hot air furnace according to claim 1, it is characterised in that：In the flame flash-back (31), flame
It is offered on the region that access (31) is connect with smoke discharging pipe (7) and at least one with hot wind access (21) or enters device of air (6)
The oxygen supply through-hole of connection.
3. a kind of high-efficient hot air furnace according to claim 2, it is characterised in that：In described flame flash-back (31) region
At least one oxygen supply mouth (8) being connected to hot wind access (21) is offered on burner hearth (2).
4. according to a kind of any high-efficient hot air furnaces of claim 1-3, it is characterised in that：Side in air ducting (5)
It also extends through and is equipped with flue tube (52), the flue tube (52) one end is connected to flame flash-back (31), the other end and smoke discharging pipe
(7) it is connected to.
5. a kind of high-efficient hot air furnace according to claim 4, it is characterised in that：Flue tube (52) upper surface opened with
The note oxygen mouth (81) of air ducting (5) connection.
6. a kind of high-efficient hot air furnace according to claim 4, it is characterised in that：Smoke discharging pipe (7) one end connects with burner hearth (2)
Logical, the other end is connected to deduster (71)；Deduster (71) other end is connected to exhaust fan (72) pipeline.
7. according to any a kind of high-efficient hot air furnace in claim 1-3,5,6, it is characterised in that：Entering device of air (6) includes
Air blower (61), gas outlet are connected with gas passage (51) upper end.
8. a kind of high-efficient hot air furnace according to claim 7, it is characterised in that：It is described enter device of air (6) further include heating
Device (62), the heater (62) are connected with the air intake of air blower (61).
9. a kind of high-efficient hot air furnace according to claim 7, it is characterised in that：It is described enter device of air (6) further include heating
Device (62), filter (63)；The filter (63) is connected to heater (62) one end pipeline, heater (62) other end and drum
The air intake of wind turbine (62) is connected.
10. a kind of efficient circulation hot-blast stove including high-efficient hot air furnace described in claim 1, it is characterised in that：Including efficient
Hot-blast stove, circulator (9)；The high-efficient hot air furnace enters device of air (6) setting in circulator (9), enters device of air (6)
Air intake setting in the circulator (9)；The circulator (9) includes cycle babinet (91), in cycle babinet
(91) dodge gate (92) is offered on, the dodge gate (92) and pull rod motor (93) output shaft are hinged, in pull rod motor (93)
Under the action of be turned on and off；Recyclegas entrance (94) is offered in described cycle babinet (91) one end, when dodge gate (92)
Dodge gate (92) blocks recyclegas entrance (94) when opening, and fresh air enters cycle babinet (91) by dodge gate (92)；When
When dodge gate (92) is closed, recyclegas enters cycle babinet (91) by recyclegas entrance (94)；The recyclegas entrance
(94) it is connected with drying room, the hot-blast outlet (8) of high-efficient hot air furnace is connected with drying room.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660635.2A CN108571818A (en) | 2018-06-25 | 2018-06-25 | A kind of high-efficient hot air furnace and efficient circulation hot-blast stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660635.2A CN108571818A (en) | 2018-06-25 | 2018-06-25 | A kind of high-efficient hot air furnace and efficient circulation hot-blast stove |
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| Publication Number | Publication Date |
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| CN108571818A true CN108571818A (en) | 2018-09-25 |
Family
ID=63573674
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| CN201810660635.2A Pending CN108571818A (en) | 2018-06-25 | 2018-06-25 | A kind of high-efficient hot air furnace and efficient circulation hot-blast stove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530141A (en) * | 2018-12-10 | 2019-12-03 | 安徽省太湖县茗峰粮油机械制造有限公司 | A kind of temperature control dryer |
| CN111237739A (en) * | 2020-03-11 | 2020-06-05 | 马忠高 | a hot blast stove |
| CN112296114A (en) * | 2020-09-30 | 2021-02-02 | 湖南恒佳新材料科技有限公司 | Preparation device of rail transit aluminum alloy material |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608565A1 (en) * | 1995-03-08 | 1996-09-12 | Walter Rieger | Rapid hot air drying of ceramic mouldings |
| KR20010060704A (en) * | 1999-12-27 | 2001-07-07 | 이구택 | Pression apparatus for charing hopper of blast furnace |
| CN201173575Y (en) * | 2008-02-04 | 2008-12-31 | 张财生 | Novel hot air stove |
| CN201909436U (en) * | 2011-01-09 | 2011-07-27 | 孙尚卫 | Small-sized energy-saving and environmentally-friendly hot air furnace |
| CN202166183U (en) * | 2011-06-29 | 2012-03-14 | 杨光辉 | Assembled straight seam hot blast stove with circular hearth |
| CN104896732A (en) * | 2015-06-11 | 2015-09-09 | 赵海柱 | Hot blast stove |
| CN105466010A (en) * | 2014-09-06 | 2016-04-06 | 新疆农业科学院农业机械化研究所 | Burning-speed-controllable coal storage and vaporization integral hot-blast stove special for greenhouse |
| CN205843229U (en) * | 2016-06-23 | 2016-12-28 | 三明市鸿达智能农业设备有限公司 | A kind of hot air circulation material drying machine |
| CN108131912A (en) * | 2018-01-16 | 2018-06-08 | 昆明霍尔金科技有限公司 | A kind of efficient fruits and vegetables drying system of even wind |
| CN208704163U (en) * | 2018-06-25 | 2019-04-05 | 马忠高 | A kind of high-efficient hot air furnace and efficient circulation hot-blast stove |
-
2018
- 2018-06-25 CN CN201810660635.2A patent/CN108571818A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608565A1 (en) * | 1995-03-08 | 1996-09-12 | Walter Rieger | Rapid hot air drying of ceramic mouldings |
| KR20010060704A (en) * | 1999-12-27 | 2001-07-07 | 이구택 | Pression apparatus for charing hopper of blast furnace |
| CN201173575Y (en) * | 2008-02-04 | 2008-12-31 | 张财生 | Novel hot air stove |
| CN201909436U (en) * | 2011-01-09 | 2011-07-27 | 孙尚卫 | Small-sized energy-saving and environmentally-friendly hot air furnace |
| CN202166183U (en) * | 2011-06-29 | 2012-03-14 | 杨光辉 | Assembled straight seam hot blast stove with circular hearth |
| CN105466010A (en) * | 2014-09-06 | 2016-04-06 | 新疆农业科学院农业机械化研究所 | Burning-speed-controllable coal storage and vaporization integral hot-blast stove special for greenhouse |
| CN104896732A (en) * | 2015-06-11 | 2015-09-09 | 赵海柱 | Hot blast stove |
| CN205843229U (en) * | 2016-06-23 | 2016-12-28 | 三明市鸿达智能农业设备有限公司 | A kind of hot air circulation material drying machine |
| CN108131912A (en) * | 2018-01-16 | 2018-06-08 | 昆明霍尔金科技有限公司 | A kind of efficient fruits and vegetables drying system of even wind |
| CN208704163U (en) * | 2018-06-25 | 2019-04-05 | 马忠高 | A kind of high-efficient hot air furnace and efficient circulation hot-blast stove |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530141A (en) * | 2018-12-10 | 2019-12-03 | 安徽省太湖县茗峰粮油机械制造有限公司 | A kind of temperature control dryer |
| CN111237739A (en) * | 2020-03-11 | 2020-06-05 | 马忠高 | a hot blast stove |
| CN112296114A (en) * | 2020-09-30 | 2021-02-02 | 湖南恒佳新材料科技有限公司 | Preparation device of rail transit aluminum alloy material |
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