CN102168886A - Combustion furnace for flue-cured bulk curing barn - Google Patents
Combustion furnace for flue-cured bulk curing barn Download PDFInfo
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- CN102168886A CN102168886A CN2010106149064A CN201010614906A CN102168886A CN 102168886 A CN102168886 A CN 102168886A CN 2010106149064 A CN2010106149064 A CN 2010106149064A CN 201010614906 A CN201010614906 A CN 201010614906A CN 102168886 A CN102168886 A CN 102168886A
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- bulk curing
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Abstract
The invention relates to a combustion furnace for a flue-cured bulk curing barn, which comprises a furnace body and a fire bar, wherein a coal feeding opening is arranged at the middle part of the furnace body; a soot outlet and an air inlet are arranged at the bottom of the furnace body; the fire bar is arranged in the furnace body and between the coal feeding opening and the soot outlet; a hot gas outlet is arranged at the upper part of the furnace body; a fire-resistant layer and a dust separating plate are arranged on the inner wall of the furnace body; the fire-resistant layer is arranged above the fire bar; the dust separating plate is arranged between the fire-resistant layer and the hot gas outlet; a combustion rod is arranged on the dust separating plate and the hot gas outlet; and a heat radiating fin and a dust passageway pipe are arranged at the top of the furnace body. As a secondary combustion device and the dust separating device are additionally arranged in the combustion furnace, substances such as dust, gases and the like produced after the primary combustion are combusted for the second time and the third time through the secondary combustion device, so that harmful gases entering a heat radiator are reduced; and high-concentration dust is separated and discharged through the dust separating plate, so that the dust entering the heat radiator is reduced; thus, the damage of the dust and harmful gases on the heat radiator is reduced, and the service life of the heat radiator is ensured.
Description
Technical field:
The invention belongs to the apparatus field that tobacco roasting is used, be specifically related to a kind of flue-cured tobacco bulk curing barn combustion furnace.
Background technology:
China's cured tobacco curing house (from liberating just) for a long time uses traditional flue-curing barn (little barn) always, the horizontal combustion furnace of making a fire and adopting brick mud to mix always, and radiator adopts native embryo, refractory cement or refractory tube etc.Last century, (1993) horizontal stove that barn is traditional such as the nineties Zhang Bailiang changed vertical shaft furnace into, the bottom is cylindrical, top is positive taper (or the limit wall is slightly curved), heat exchanger is the flat fire tube of PJK type of cement structures, and heat supply is auxilliary based on radiation with heat convection, can add the forced ventilation oxygen supply, fuel is burnt through abundant in vertical heater, produce high-temperature flue gas and enter flat plate heat exchanger, flat fire tube can improve efficiency of combustion about 47% in conjunction with vertical stove.
Enter 21 century, China begins to promote bulk curing barn, and the firing equipment of bulk curing barn is based on introduction before 2005, and the burner hearth great majority not too are fit to the custom that Flue-cured Tobacco in China is burnt coal based on burning gases fuel.The numerous production bulk curing barns of the domestic appearance producer of firing equipment after 2006, the burner hearth of the firing equipment of these manufacturer production and radiator adopt the steel plate welding mostly, and traditional structure before chamber structure is continued to use mostly is a fuel with the coal.Fuel passes through primary combustion in burner hearth after, a large amount of dust waste gas etc. enters radiator with hot gas together, harmful substance in the waste gas is corrosion person's radiator still, and dust deposits in radiator, influences the radiating effect and hot gas the flowing in radiator of radiator, fuel is primary combustion in burner hearth, can not guarantee the abundant burning of fuel, it is too big to consume energy, and causes the wasting of resources, and very easily dust stratification, corrosion of the heat dissipation equipment that is connected with burner hearth, phenomenon such as radiator service life is long.For this reason, 2010, Chinese tobacco leaf parent company unified bulk curing barn structure building, firing equipment and ventilating system specification in national cigarette district.Though the chamber structure that unified specification is built has great lifting than before, but still there is defective on its structure, still adopt the primary combustion mode, and fail fundamentally to solve the problem in dust and pernicious gas deposition, corrosion radiator tube road, it is still remaining further to be optimized and transformation in energy-saving and emission-reduction with aspect prolonging service life of heat dissipation equipment.
Summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind of flue-cured tobacco bulk curing barn combustion furnace, it is to increase once more burner and divide the dirt device in original combustion furnace, the materials such as dusty gas that produce after to primary combustion of burner fuel carry out heating again once more, make its secondary, three burnings, guarantee the abundant burning of fuel, reduce pernicious gas and enter the heat radiation tolerance, simultaneously, dust-separating plate reduces the dust separation discharging of high concentration dust and enters radiator, thereby reach the infringement of minimizing dust and pernicious gas, guarantee the service life of radiator radiator.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of flue-cured tobacco bulk curing barn combustion furnace, it comprises body of heater and fire bars, the body of heater middle part is provided with coal filling hole, bottom of furnace body is provided with ash hole and air inlet, be provided with fire bars in the body of heater, fire bars is arranged between coal filling hole and the ash hole, upper of furnace body is provided with heat outlet, wherein: described inboard wall of furnace body is provided with flame retardant coating and dust-separating plate, flame retardant coating is arranged on the fire bars, and dust-separating plate is arranged between flame retardant coating and the heat outlet, and dust-separating plate is provided with rod, rod is arranged on the heat outlet, and the body of heater top is provided with fin and dust channel pipe.
Technical scheme of the present invention can also be achieved in that described rod vertically passes dust-separating plate, and the distance between the lower end of rod and the dust-separating plate bottom surface is 5cm at least.
Technical scheme of the present invention can also be achieved in that described rod is at least two rows, and the fissure of displacement is arranged between row and row.
Technical scheme of the present invention can also be achieved in that described rod and dust-separating plate all adopt exotic material.
Technical scheme of the present invention can also be achieved in that described dust channel pipe passes from the hot blast chamber of bulk curing barn, its outlet the height that highly is higher than barn is set.
Beneficial effect of the present invention is:
1, the present invention increases once more burner and divides the dirt device in original combustion furnace, the materials such as dusty gas that produce after to primary combustion of burner fuel carry out heating again once more, make its secondary, three burnings, guarantee the abundant burning of fuel, reduce pernicious gas and enter the heat radiation tolerance, simultaneously, dust-separating plate is with the dust separation discharging of high concentration, reduce dust and enter radiator, reduce the infringement of dust and pernicious gas, guarantee the service life of radiator radiator thereby reach.
2, burner once more of the present invention is the rod that many misarrangements sew cloth and put, and can guarantee that the materials such as dusty gas after the primary combustion fully contact with rod, and then fully burning.
3, dust channel pipe of the present invention passes from the hot blast chamber of bulk curing barn, and its outlet is arranged on the high-altitude, and the hot blast that can be dispersed into the heat in the passage bulk curing barn is indoor, and dust channel pipe ability is exactly a radiator.Because the outlet of dust channel pipe is arranged on the high-altitude, the exit negative pressure is big, and the gas temperature of discharge is higher, has reduced harmful substance in dust channel body aggegation degree.
4, the present invention just can guarantee full combustion of fuel by simple architecture advances, reduces the infringement of radiator, guarantees the service life of radiator, reduces emission of harmful substances simultaneously, reaches the purpose of energy-saving and emission-reduction.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1 of the present invention;
Fig. 3 is the B-B cross-sectional schematic of Fig. 1 of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Figure 3, a kind of flue-cured tobacco bulk curing barn combustion furnace, it comprises body of heater 6 and fire bars 4, body of heater 6 middle parts are provided with coal filling hole 3, body of heater 6 bottoms are provided with ash hole 1 and air inlet 2, be provided with fire bars 4 in the body of heater 6, fire bars 4 is arranged between coal filling hole 3 and the ash hole 1, body of heater 6 tops are provided with heat outlet 7, body of heater 6 inwalls are provided with flame retardant coating 5 and dust-separating plate 10, and flame retardant coating 5 is arranged on the fire bars 4, and dust-separating plate 10 is arranged between flame retardant coating 5 and the heat outlet 7, dust-separating plate 10 is provided with rod 11, rod 11 is arranged on the heat outlet 7, and rod 11 vertically passes dust-separating plate 10, and the distance between the lower end of rod 11 and dust-separating plate 10 bottom surfaces is 5cm, rod 11 and dust-separating plate 10 all adopt exotic material, rod 11 is provided with two rows altogether, and the fissure of displacement is arranged between row and row, and body of heater 6 tops are provided with fin 9 and dust channel pipe 8, dust channel pipe 8 passes from the hot blast chamber of bulk curing barn, its outlet the height that highly is higher than barn is set.
During use, coal enters body of heater 6 inside through coal filling hole 3, send in oxygen and the body of heater 6 action of high temperature following at air blast, coal takes fire, temperature continues to raise in the body of heater 6, make rod 11 and dust-separating plate 10 be in the condition of high temperature, waste gas that produces behind the coal combustion and dust upwards flow under thermodynamic effect; Dust in flowing and waste gas run into rod 11 and dust-separating plate 10 is back to diffusion all around; Waste gas runs into the dirt plate of branch high temperature and 11 backs of the rod under the dust-separating plate 10 under the effect of oxygen, and burning for the second time takes place, and decompose or synthetic new waste gas under the effect of heating power, continue upwards to flow along the dust direction.
Hot gas mouth during body of heater 6 tops are provided with is the main discharge-channel of flue gas, and rod 11 retainings are before the hot gas mouth.New waste gas through producing after the second-time burning with heating power when the hot gas mouth flows to radiator, must be through rod 11, under the effect of high-temp combustion rod 11 and oxygen, burning for the third time takes place in new waste gas.Three burnings guarantee the more abundant of fuel combustion, produce more heat, reduce the corrosion of waste gas to radiator.
The top of body of heater 6 is provided with dust channel pipe 8, and the size of dust channel pipe 8 is far smaller than the size of heat outlet 7, therefore the dust through the high concentration of assembling at body of heater 6 tops after dust-separating plate 10 shuntings flows out from dust channel pipe 8, dust channel pipe 8 passes from the hot blast chamber of bulk curing barn, its outlet is arranged on the high-altitude, the hot blast that can be dispersed into the heat in the passage bulk curing barn is indoor, and dust channel pipe 8 abilities are exactly radiator.Since the outlet of dust channel pipe 8 the height that highly is higher than barn is set, the exit negative pressure is big, the gas temperature of discharge is higher, has reduced harmful substance in dust channel pipe 8 body aggegation degree.There is the part harmful exhaust to flow out equally, reduced the corrosion of harmful exhaust radiating tube from dust channel pipe 8.
Body of heater 6 of the present invention is provided with air inlet 2, and air inlet 2 connects blower outlet, and the oxygen of abundance is provided for the burning of fuel.
Be noted that, the above embodiment is to the explanation of technical solution of the present invention and unrestricted, other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to prior art, as long as do not exceed the thinking and the scope of technical solution of the present invention, all should be included within the interest field of the presently claimed invention.
Claims (5)
1. flue-cured tobacco bulk curing barn combustion furnace, it comprises body of heater (6) and fire bars (4), body of heater (6) middle part is provided with coal filling hole (3), body of heater (6) bottom is provided with ash hole (1) and air inlet (2), be provided with fire bars (4) in the body of heater (6), fire bars (4) is arranged between coal filling hole (3) and the ash hole (1), body of heater (6) top is provided with heat outlet (7), it is characterized in that: described body of heater (6) inwall is provided with flame retardant coating (5) and dust-separating plate (10), flame retardant coating (5) is arranged on the fire bars (4), dust-separating plate (10) is arranged between flame retardant coating (5) and the heat outlet (7), dust-separating plate (10) is provided with rod (11), rod (11) is arranged on the heat outlet (7), and body of heater (6) top is provided with fin (9) and dust channel pipe (8).
2. flue-cured tobacco bulk curing barn combustion furnace according to claim 1 is characterized in that: described rod (11) vertically passes dust-separating plate (10), and the distance between the lower end of rod (11) and dust-separating plate (10) bottom surface is 5cm at least.
3. flue-cured tobacco bulk curing barn combustion furnace according to claim 1 is characterized in that: described rod (11) is at least two rows, and the fissure of displacement is arranged between row and row.
4. flue-cured tobacco bulk curing barn combustion furnace according to claim 1 is characterized in that: described rod (11) and dust-separating plate (10) all adopt exotic material.
5. flue-cured tobacco bulk curing barn combustion furnace according to claim 1 is characterized in that: described dust channel pipe (8) passes from the hot blast chamber of bulk curing barn, its outlet the height that highly is higher than barn is set.
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CN2010106149064A CN102168886A (en) | 2010-12-30 | 2010-12-30 | Combustion furnace for flue-cured bulk curing barn |
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CN2010106149064A CN102168886A (en) | 2010-12-30 | 2010-12-30 | Combustion furnace for flue-cured bulk curing barn |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102715045A (en) * | 2012-07-16 | 2012-10-10 | 河南农业大学 | Warming device for tobacco breeding canopy |
CN103245183A (en) * | 2013-04-26 | 2013-08-14 | 贵州航天特种车有限责任公司 | Efficient energy-saving baking device |
CN106360800A (en) * | 2016-08-31 | 2017-02-01 | 湖南省烟草公司长沙市公司宁乡县分公司 | Bulk tobacco curing reverse-combustion hot-blast furnace and application method thereof |
WO2017080374A1 (en) * | 2015-11-12 | 2017-05-18 | 程炽坤 | Drying stove |
CN110623294A (en) * | 2019-09-27 | 2019-12-31 | 云南省烟草农业科学研究院 | Integrated built-in heat supply device of biomass energy bulk curing barn |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102715045A (en) * | 2012-07-16 | 2012-10-10 | 河南农业大学 | Warming device for tobacco breeding canopy |
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CN103245183A (en) * | 2013-04-26 | 2013-08-14 | 贵州航天特种车有限责任公司 | Efficient energy-saving baking device |
WO2017080374A1 (en) * | 2015-11-12 | 2017-05-18 | 程炽坤 | Drying stove |
CN106360800A (en) * | 2016-08-31 | 2017-02-01 | 湖南省烟草公司长沙市公司宁乡县分公司 | Bulk tobacco curing reverse-combustion hot-blast furnace and application method thereof |
CN106360800B (en) * | 2016-08-31 | 2018-07-10 | 湖南省烟草公司长沙市公司宁乡县分公司 | Intensive flue-cured tobacco is counter to heat wind furnace and its application method |
CN110623294A (en) * | 2019-09-27 | 2019-12-31 | 云南省烟草农业科学研究院 | Integrated built-in heat supply device of biomass energy bulk curing barn |
CN110623294B (en) * | 2019-09-27 | 2021-12-07 | 云南省烟草农业科学研究院 | Integrated built-in heat supply device of biomass energy bulk curing barn |
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Application publication date: 20110831 |