CN105135672A - Biomass particle hot-blast furnace - Google Patents

Biomass particle hot-blast furnace Download PDF

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Publication number
CN105135672A
CN105135672A CN201510669075.3A CN201510669075A CN105135672A CN 105135672 A CN105135672 A CN 105135672A CN 201510669075 A CN201510669075 A CN 201510669075A CN 105135672 A CN105135672 A CN 105135672A
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China
Prior art keywords
fire box
heat
burner hearth
sieve
deduster
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CN201510669075.3A
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Chinese (zh)
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CN105135672B (en
Inventor
胡爱初
胡建民
王胜军
李共和
马翠兰
张爱英
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HUNAN WANYOU ENERGY TECHNOLOGY CO., LTD.
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Taojiang Yeneng Machinery Manufacturing Co Ltd
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Priority to CN201510669075.3A priority Critical patent/CN105135672B/en
Publication of CN105135672A publication Critical patent/CN105135672A/en
Application granted granted Critical
Publication of CN105135672B publication Critical patent/CN105135672B/en
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Abstract

The invention relates to a biomass particle hot-blast furnace which comprises a furnace body, wherein the furnace body is sequentially provided with a fire box, a flue connecting pipe, a sieve-plate heat exchange plate, heat-conducting plates and a furnace shell from inside to outside; and the lower part of the fire box is provided with a hearth; the outer wall of the hearth is a sieve-plate structure; the upper part of a furnace chamber formed by the heat-conducting plates is provided with a heat air inlet; an air inlet plate is arranged below the heat air inlet; and an outlet of the flue connecting pipe is connected with a deduster. The biomass particle hot-blast furnace has the advantages of high efficiency, environment friendliness, low carbon, low consumption, time saving, labor saving, low cost, long service life, high temperature control precision and high heat recovery rate (up to 80%), and can save the coal amount by 30% and save the firewood amount by 40%.

Description

A kind of biological particles hot-blast stove
Technical field
The present invention relates to a kind of hot-blast stove, particularly a kind of biological particles hot-blast stove.
Background technology
Hot-blast stove as thermal power machinery starts extensive use in late 1970s in China, the regeneration product of electric heat source and conventional vapor power heat source has been become in many industries, it adopts coal, coke, diesel oil, heavy oil, coal gas etc. as fuel more, but a series of pernicious gas can be produced after above-mentioned fuel combustion, very serious impact is all caused on environment and human body.
Along with the development and progress of society, people more and more pay attention to environment, traditional hot-blast stove oneself gradually substitute by biomass thermal wind furnace, so-called biomass thermal wind furnace is exactly using living beings as fuel, and the pernicious gas of generation is few compared with traditional fuel.But because living beings generally have, moisture content is high, fuel change in size large and content of ashes high, above-mentioned biomass thermal wind furnace is caused to there is distribution wind unfair even, fuel combustion not exclusively, easily produce circuit fire phenomenon in heating process, intensification is slow, the thermal efficiency is low, smoke abatement and dust control is poor, discharge not environmentally, the defects such as service life is short.As can be seen here, the appearance of biomass thermal wind furnace does not still well solve above-mentioned great number of issues, and therefore studying a kind of environmentally friendly biomass thermal wind furnace becomes the technical problem being badly in need of at present solving.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and provide a kind of high-efficiency environment friendly, low-carbon (LC) low consumption, with low cost, the biological particles hot-blast stove of long service life.
Technical scheme of the present invention is: a kind of biological particles hot-blast stove, comprise body of heater, described body of heater is provided with fire box, flue gas tube connector, sieve-board type heat exchanger plates, heat-conducting plate and furnace shell from inside to outside successively, and the bottom of described fire box is provided with burner hearth, and the outer wall of burner hearth is sieve-board type structure; The top of the furnace chamber be enclosed to form by described heat-conducting plate is provided with heat air inlet, and the below of heat air inlet is provided with air intake plate; The outlet of described flue tube connector connects deduster.
Further, described air intake plate is sieve-board type air intake plate, tapered.
Further, described flue tube connector has eight, and described eight flue tube connectors dislocation is arranged, is located at fire box, between air intake plate and sieve-board type heat exchanger plates; The entrance of eight flue tube connectors connects fire box, exports and connects deduster through flue outlet pipe; Often adjacent two flue tube connectors are even connected flue ash hole through flue.
Further, described burner hearth is tapered, and the conical section of burner hearth comprises a long limit and a minor face, is sieve-board type structure, and the angle of described long limit and horizontal plane is 30 °, and the angle of minor face and horizontal plane is 40 °.
Further, described deduster is installed on the outside of body of heater, is provided with dust board and the water level controller for controlling water level in deduster, and the upper end of described deduster helps flow fan through helping flow fan connector to connect; The side of deduster is provided with sewage draining exit, and the bottom of deduster is connected with blow-off pipe, and blow-off pipe is provided with blowoff valve.
Further, the charging aperture of described fire box is connected with feed screw, the fuel hopper that feed screw comprises feeding screw, is located at the sprocket wheel of feeding screw end and is located on the upside of feeding screw, and described feeding screw connects the charging aperture of fire box; The inside of described fire box is provided with fireguard, and described feeding screw is connected to fireguard place.
Further, described feeding screw is sheathed in spiral duct, one end of spiral duct connects the charging aperture of fire box, the downside of spiral duct connects one end of cooling duct, the other end of described cooling duct connects combustion fan, and described combustion fan connects the side, below of burner hearth through combustion fan connector.
Further, the bottom of described burner hearth connects grate, and the lower end of grate is provided with waste heat recovery for burner hearth surrounding being produced to the heat recovery hole in burner hearth, and the top of grate is provided with fire hole.
Further, the bilateral symmetry of described sieve-board type heat exchanger plates is provided with the hot-blast outlet being communicated with fire box outer wall; With bottom fire box for circumferential row on the furnace shell bottom surface on boundary is furnished with cold wind import.
Further, the outside of described burner hearth is furnace shell, and the side, bottom of furnace shell is provided with ash hole.
Beneficial effect of the present invention:
(1) fire box, flue gas tube connector, sieve-board type heat exchanger plates, heat-conducting plate and furnace shell is provided with from inside to outside successively in body of heater, the top of the furnace chamber that heat-conducting plate is enclosed to form is provided with heat air inlet, the below of air inlet is provided with air intake plate, the sieve aperture of heat through sieve-board type heat exchanger plates conducts heat to heat-conducting plate by fire box, the heat produced is passed between heat-conducting plate and furnace shell through heat-conducting plate, again concentrated on around fire box through air intake plate by heat air inlet again, increase heat exchange area, energy recovery is enhanced about more than once, and flue-gas temperature reaches discharging standards;
(2) outlet of flue tube connector connects deduster, dust board and water level controller is provided with in deduster, flue gas and dust are fallen in water after water filtration disappear, unnecessary flue gas or dust are discharged by sewage draining exit and blow-off pipe, really accomplish smokelessly ashless effect, reach dedusting and environmental protection object; The upper end connection of deduster helps flow fan, flue gas flow rate can be made to accelerate, guarantee that hearth combustion is abundant;
(3) chamber design is tapered, the heat of bottom can be recovered in fire box fast, save recovery time, heat recovery rate can reach 80%, and Coal-fired capacity saves 30%, and combustion bavin amount saves 40%; The outer wall of burner hearth is sieve-board type structure, makes burner hearth heat soon, not cutoff, thoroughly solves coal, bavin cutoff in feeding in raw material, cooling, needs the problems such as artificial roasting;
(4) lower end of grate is provided with heat recovery hole, for the waste heat recovery that will produce around burner hearth in burner hearth, the fire of burner hearth is flowed fast, and fuel combustion is more abundant, and furnace temperature is enhanced about more than once fast, and economize energy and fuel;
(5) charging aperture of fire box is connected with feed screw, and the output of feed screw is connected to the fireguard place in fire box, and fuel can not be tempered in fuel hopper in combustion;
(6) air outlet of combustion fan is connected the charging aperture of fire box with spiral duct through cooling tube, make burner hearth on the one hand not by the temperatures involved of fire box, guarantee that burner hearth is permanent not damage, improve the service life of burner hearth, on the other hand, improve the temperature of fire box, make fire box quick heating, transferring heat from level to level, improves the thermal efficiency;
(7) air intake plate is tapered, the heat of heat air inlet can be recycled to fast the surrounding of fire box, saves recovery time; Air intake plate adopts sieve-board type air intake plate, and air intake, without dead angle, ensures fire box temperature equalization;
(8) with bottom fire box for circumferential row on the furnace shell bottom surface on boundary is furnished with cold wind import, fire box can be made to cool fast;
(9) thoroughly realize, without features such as dead angle, noncoking, ashes lack, not being only applicable to biomass fuel, even if use other fuel also can reduce environmental pollution, greatly reducing energy consumption.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the embodiment of the present invention;
Fig. 2 is the superstructure schematic diagram of body of heater embodiment illustrated in fig. 1;
Fig. 3 is the substructure schematic diagram of body of heater embodiment illustrated in fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, detailed construction of the present invention is further described.
As shown in Fig. 1 ~ Fig. 3: a kind of biological particles hot-blast stove, comprises body of heater 1, body of heater 1 is provided with fire box 11, flue gas tube connector 12, sieve-board type heat exchanger plates 13, heat-conducting plate 14 and furnace shell 15 from inside to outside successively, and the bottom of fire box 11 is provided with burner hearth 2.Fire box 11 is made up of Heat Conduction Material, the heat of burner hearth 2 can be passed to fire box 11 place fast, fire box 11 is heated evenly, and improves the thermal efficiency.Furnace shell 15 is made up of resistant to elevated temperatures steel plate, insulation and good cooling results.The top of the furnace chamber 3 be enclosed to form by heat-conducting plate 14 is provided with heat air inlet 31, and the below of heat air inlet 31 is provided with tapered sieve-board type air intake plate 32.Sieve-board type air intake plate 32 is connected with sieve-board type heat exchanger plates 13, to increase heat exchange area.Sieve-board type air intake plate 32 is designed to taper by the present embodiment, the heat at heat air inlet 31 place can be recycled to fast the surrounding of fire box 11, saves recovery time; And adopting sieve-board type structure, air intake, without dead angle, ensures fire box 11 temperature equalization.The present embodiment, by arranging multilayer heat transfer structure, increases heat exchange area.Concrete heat transfer type is: the sieve aperture of heat through sieve-board type heat exchanger plates 13 conducts heat to heat-conducting plate 14 by fire box 11, the heat produced is passed between heat-conducting plate 14 and furnace shell 15 through heat-conducting plate 14, fire box 11 is again concentrated on around through sieve-board type air intake plate 32 again by heat air inlet 31, energy recovery is enhanced about more than once, and flue-gas temperature reach discharging standards.
Flue tube connector 12 has eight, and eight flue tube connectors 12 misplace and arrange, circumferential row is distributed in fire box 11, between sieve-board type air intake plate 32 and sieve-board type heat exchanger plates 13; The entrance of eight flue tube connectors 12 connects fire box 11, exports and connects deduster 4 through flue outlet pipe 121; Often adjacent two flue tube connectors 12 connect conjunction 122 through flue and connect flue ash hole 123, and namely flue ash hole 123 symmetry arrangement has four.The flue gas that burner hearth 1 fuel combustion produces enters fire box 11, because eight flue tube connectors 12 are arranged around fire box 11 circumference, make eight flue tube connectors 12 to absorb the flue gas in fire box 11 from diverse location and to be delivered in deduster 4 and carry out smoke filtration, can not dead angle be left; The unnecessary cigarette ash of flue tube connector 12 is discharged through flue ash hole 123 and is collected, and focuses on.
Deduster 4 is installed on the outside of body of heater 1, is provided with dust board 41 and the water level controller for controlling water level in deduster 4, and the upper end of deduster 4 helps flow fan through helping flow fan connector 42 to connect; The side of deduster 4 is provided with sewage draining exit 43, and the bottom of deduster 4 is connected with blow-off pipe 44, and blow-off pipe 44 is provided with blowoff valve 45.Wherein, water level controller is in optimum level of water state for the water level controlled in deduster 4; After flue gas enters deduster 4, larger dust granules falls in water after being stopped by dust board 41 and is removed, and less dust granules is discharged through sewage draining exit 43 by helping flow fan, really accomplishes smokelessly ashless effect, reaches dedusting and environmental protection object.In addition, help flow fan that flue gas flow rate can be made to accelerate, flow out to fast in deduster 4 and filter, thus guarantee burner hearth 2 sufficient combustion, a large amount of flue gases can not be there is and hinder fuel combustion.Water in deduster 4 is then discharged by blow-off pipe 44, opening and ending by blowoff valve 45 control of sewage disposal pipe 44.
The charging aperture of fire box 11 is connected with feed screw 5, the fuel hopper 53 that feed screw 5 comprises feeding screw 51, is located at the sprocket wheel 52 of feeding screw 51 end and is located on the upside of feeding screw 51, and feeding screw 51 connects the charging aperture of fire box 11; The inside of fire box 11 is provided with fireguard 111, and feeding screw 51 is connected to fireguard 111 place.Wherein, fuel hopper 53 is for splendid attire biomass fuel or other fuel, by rotating sprocket 52 by fuel area density to feeding screw 51, the middle part of feeding screw 51 is provided with helical axis, rotate for driving feeding screw 51, and then fuel is rotated the charging aperture being pushed out to fire box 11, and fall in burner hearth 2 along fire box 11.Delivery end due to feeding screw 51 is positioned at fireguard 111 place, fuel can not be tempered in fuel hopper 53 in combustion, thus improve the life-span of feed screw 5, reduces economic loss.
Feeding screw 51 is sheathed in spiral duct 6, one end of spiral duct 6 connects the charging aperture of fire box 11, the downside of spiral duct 6 connects one end of spiral cooling duct 61, the other end of spiral cooling duct 61 connects combustion fan, and combustion fan connects the side, below of burner hearth 2 through combustion fan connector 7.In the present embodiment, the air outlet of combustion fan connects fire box 11 through spiral cooling duct 61, make burner hearth 2 on the one hand not by the temperatures involved of fire box 11, guarantee that burner hearth 2 is permanent not damage, improve the service life of burner hearth 2, on the other hand, improve the temperature of fire box 11, and then transferring heat from level to level, improve the thermal efficiency.
Burner hearth 2 is tapered, and the conical section of burner hearth 2 comprises a long limit and a minor face, and the angle of long limit and horizontal plane is 30 °, and the angle of minor face and horizontal plane is 40 °.This pyramidal structure can be recovered in fire box 11 the heat of bottom fast, and save recovery time, heat recovery rate can reach 80%, when fire coal or combustion bavin, Coal-fired capacity can be made to save 30%, and combustion bavin amount saves 40%.The outer wall of burner hearth 2 is sieve-board type structure, and this structure is identical with the sieve-plate structure of sieve-board type heat exchanger plates 13, and conical screen plank frame can make burner hearth 2 heat soon, not cutoff, thoroughly solves coal, bavin cutoff in feeding in raw material, cooling, needs the problems such as artificial roasting.The bottom of burner hearth 2 connects grate 21, and the lower end of grate 21 is provided with heat recovery hole 211, for the waste heat recovery that burner hearth 2 surrounding produced in burner hearth 2, fire in burner hearth 2 is flowed fast, fuel combustion is more abundant, and furnace temperature is enhanced about more than once fast, and economize energy and fuel.The top of grate 21 is provided with fire hole 22, for fire fuel.
The bilateral symmetry of sieve-board type heat exchanger plates 13 is provided with the hot-blast outlet 7 being communicated with fire box 11 outer wall; With bottom fire box 11 for circumferential row on furnace shell 15 bottom surface on boundary is furnished with cold wind import 8.The outside of burner hearth 2 is furnace shell 15, and the side, bottom of furnace shell 15 is provided with ash hole 9, for the slag ash produced after discharging fuel combustion.In the present embodiment, furnace shell 15 with the junction of fire box 11 and burner hearth 2 for boundary is divided into upper furnace shell 151 and lower furnace shell 152, the width of upper furnace shell 151 is greater than lower furnace shell 152, and on the bottom surface of upper furnace shell 151, circumferential row is furnished with cold wind import 8, when body of heater 1 is stopped using, by cold wind import 8 fast cooling; Two hot-blast outlets 7 can accelerate cooling.
The course of work of the present embodiment is: be placed in by fuel in fuel hopper 62, be delivered in fire box 11 through feed screw 6, by fire hole 22 fire fuel, make full combustion of fuel, flare spreads to fire box 2 place, and the sieve aperture of heat through sieve-board type heat exchanger plates 13 conducts heat to heat-conducting plate 14 by fire box 2, and the heat of generation is passed between heat-conducting plate 14 and furnace shell 15 through heat-conducting plate 14, again concentrate on fire box 11 around by heat air inlet 31 through sieve-board type air intake plate 32 again, make temperature equalization; The flue gas that fuel combustion produces enters in eight flue tube connectors 12 from diverse location, by flue outlet pipe 121, flue gas is delivered in deduster 4 again, dust granules larger contained by flue gas is fallen in water be removed, less dust granules processes through sewage draining exit 43 discharge by helping flow fan; In combustion, the waste heat that burner hearth 2 surrounding produces can be recycled in burner hearth 2 in real time, and the fire in burner hearth 2 is flowed fast, and fuel combustion is more abundant; In addition, combustion fan can steply be cooled by spiral cooling duct 61 pairs of fire boxs 11, makes burner hearth 2 not by the temperatures involved of fire box 11, guarantees that burner hearth 2 is permanent and do not damage, and improve the thermal efficiency further.The heat recovery rate of the present embodiment can reach 80%, if coal-fired, Chai Shi, makes Coal-fired capacity save 30%, and combustion bavin amount saves 40%, thoroughly realizes without dead angle, noncoking, the ashes feature such as less.
During the present embodiment work, per minutely heat about 20 DEG C, maximum temperature can reach 250 DEG C, and temperature-controlled precision is ± 0.2 DEG C, is applicable to dry tealeaves, medicinal material, food, paddy etc., and no matter selects living beings or the fuel such as coal, diesel oil, high-efficiency environment friendly can both be reached, low-carbon (LC) low consumption, with low cost, the advantages such as long service life.

Claims (10)

1. a biological particles hot-blast stove, comprise body of heater, it is characterized in that: described body of heater is provided with fire box, flue gas tube connector, sieve-board type heat exchanger plates, heat-conducting plate and furnace shell from inside to outside successively, and the bottom of described fire box is provided with burner hearth, the outer wall of burner hearth is sieve-board type structure; The top of the furnace chamber be enclosed to form by described heat-conducting plate is provided with heat air inlet, and the below of heat air inlet is provided with air intake plate; The outlet of described flue tube connector connects deduster.
2. biological particles hot-blast stove according to claim 1, is characterized in that: described air intake plate is sieve-board type air intake plate, tapered.
3. biological particles hot-blast stove according to claim 1 and 2, is characterized in that: described flue tube connector has eight, and eight flue tube connector dislocation are arranged, are located at fire box, between air intake plate and sieve-board type heat exchanger plates; The entrance of eight flue tube connectors connects fire box, exports and connects deduster through flue outlet pipe; Often adjacent two flue tube connectors are even connected flue ash hole through flue.
4. biological particles hot-blast stove according to claim 1 and 2, it is characterized in that: described burner hearth is tapered, the conical section of burner hearth comprises a long limit and a minor face, is sieve-board type structure, the angle of described long limit and horizontal plane is 30 °, and the angle of minor face and horizontal plane is 40 °.
5. biological particles hot-blast stove according to claim 1 and 2, it is characterized in that: described deduster is installed on the outside of body of heater, be provided with dust board and the water level controller for controlling water level in deduster, the upper end of described deduster helps flow fan through helping flow fan connector to connect; The side of deduster is provided with sewage draining exit, and the bottom of deduster is connected with blow-off pipe, and blow-off pipe is provided with blowoff valve.
6. biological particles hot-blast stove according to claim 1 and 2, it is characterized in that: the charging aperture of described fire box is connected with feed screw, the fuel hopper that feed screw comprises feeding screw, is located at the sprocket wheel of feeding screw end and is located on the upside of feeding screw, described feeding screw connects the charging aperture of fire box; The inside of described fire box is provided with fireguard, and described feeding screw is connected to fireguard place.
7. biological particles hot-blast stove according to claim 6, it is characterized in that: described feeding screw is sheathed in spiral duct, one end of spiral duct connects the charging aperture of fire box, the downside of spiral duct connects one end of cooling duct, the other end of described cooling duct connects combustion fan, and described combustion fan connects the side, below of burner hearth through combustion fan connector.
8. biological particles hot-blast stove according to claim 1 and 2, it is characterized in that: the bottom of described burner hearth connects grate, the lower end of grate is provided with waste heat recovery for burner hearth surrounding being produced to the heat recovery hole in burner hearth, and the top of grate is provided with fire hole.
9. biological particles hot-blast stove according to claim 1 and 2, is characterized in that: the bilateral symmetry of described sieve-board type heat exchanger plates is provided with the hot-blast outlet being communicated with fire box outer wall; With bottom fire box for circumferential row on the furnace shell bottom surface on boundary is furnished with cold wind import.
10. biological particles hot-blast stove according to claim 1 and 2, is characterized in that: the outside of described burner hearth is furnace shell, and the side, bottom of furnace shell is provided with ash hole.
CN201510669075.3A 2015-10-13 2015-10-13 A kind of biological particles hot-blast stove Active CN105135672B (en)

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CN105135672B CN105135672B (en) 2019-02-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105783260A (en) * 2016-03-14 2016-07-20 黄国驹 Heating combustion furnace with cooling system
CN107957133A (en) * 2017-11-17 2018-04-24 芜湖新农夫机械有限公司 A kind of automatic dust removal hot-blast stove of bicavate
CN108980897A (en) * 2017-06-03 2018-12-11 河北亿科金属制品有限公司 A kind of full-automatic temperature-controlling Enevgy-saving coal-fired furnace
CN109539548A (en) * 2018-11-14 2019-03-29 江苏金满穗农业发展有限公司 One kind is spurted the husk hot-blast stove that burns

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CN2071762U (en) * 1990-03-10 1991-02-20 北京热风炉制造厂 Small-size multipurpose hot-air stove
JP2000161673A (en) * 1998-11-30 2000-06-16 Toyotomi Co Ltd Far infrared heater fitted with exhaust pipe
US20030079738A1 (en) * 2001-10-31 2003-05-01 Toyotomi Co., Ltd. Hot air space heater
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CN102937333A (en) * 2012-11-27 2013-02-20 四川省登尧机械设备有限公司 Energy-saving hot blast heater
CN203404969U (en) * 2013-08-12 2014-01-22 四川省登尧机械设备有限公司 Improved hot blast heater
CN204574473U (en) * 2014-12-30 2015-08-19 白津著 A kind of novel biomass environment-friendly energy-saving hot blast furnace

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2071762U (en) * 1990-03-10 1991-02-20 北京热风炉制造厂 Small-size multipurpose hot-air stove
JP2000161673A (en) * 1998-11-30 2000-06-16 Toyotomi Co Ltd Far infrared heater fitted with exhaust pipe
US20030079738A1 (en) * 2001-10-31 2003-05-01 Toyotomi Co., Ltd. Hot air space heater
CN201844551U (en) * 2010-07-23 2011-05-25 李登尧 Hot blast stove
CN102937333A (en) * 2012-11-27 2013-02-20 四川省登尧机械设备有限公司 Energy-saving hot blast heater
CN203404969U (en) * 2013-08-12 2014-01-22 四川省登尧机械设备有限公司 Improved hot blast heater
CN204574473U (en) * 2014-12-30 2015-08-19 白津著 A kind of novel biomass environment-friendly energy-saving hot blast furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105783260A (en) * 2016-03-14 2016-07-20 黄国驹 Heating combustion furnace with cooling system
CN108980897A (en) * 2017-06-03 2018-12-11 河北亿科金属制品有限公司 A kind of full-automatic temperature-controlling Enevgy-saving coal-fired furnace
CN107957133A (en) * 2017-11-17 2018-04-24 芜湖新农夫机械有限公司 A kind of automatic dust removal hot-blast stove of bicavate
CN109539548A (en) * 2018-11-14 2019-03-29 江苏金满穗农业发展有限公司 One kind is spurted the husk hot-blast stove that burns

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