CN103322677B - Energy saving and environment friendly coal-fired hot-blast stove - Google Patents
Energy saving and environment friendly coal-fired hot-blast stove Download PDFInfo
- Publication number
- CN103322677B CN103322677B CN201310295552.5A CN201310295552A CN103322677B CN 103322677 B CN103322677 B CN 103322677B CN 201310295552 A CN201310295552 A CN 201310295552A CN 103322677 B CN103322677 B CN 103322677B
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- dirt pocket
- hot
- tube sheet
- blast stove
- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a kind of energy saving and environment friendly coal-fired hot-blast stove.It comprises combustion chamber of hot-blast stove, dirt pocket and heat exchanger.Between combustion chamber of hot-blast stove and heat exchanger, dirt pocket is housed.Dirt pocket comprises gas baffle, grit waste heat recovery pipe and dirt pocket tube sheet.Top between dirt pocket tube sheet is coated with gas baffle, and the bottom between dirt pocket tube sheet is coated with grit waste heat recovery pipe.The rear outside of dirt pocket tube sheet is provided with air inlet duct, and cover cap lives the rear end that gas baffle and grit waste heat recovery pipe stretch out dirt pocket tube sheet.Grit waste heat recovery pipe stretches out the front end of dirt pocket tube sheet by wind-collecting cover institute cover cap.Feature of the present invention is reasonable in design, dedusting consumption reduction successful.Between existing combustion chamber of hot-blast stove and heat exchanger, install dirt pocket additional, can significantly improve heat exchanger fouling of heating surface and wear condition, and then improve hot-blast stove operating thermal efficiency and service life.Be applicable to installing and using of all kinds of use coal-fired hot-blast stove enterprise.
Description
Technical field
The present invention relates to coal hot-blast stove, refer more particularly to energy saving and environment friendly coal-fired hot-blast stove.
Background technology
At present, coal-fired hot-blast stove is still widely used in the numerous areas such as heating, oven dry.Its greatest drawback is neither energy-conservation, also not environmentally.Main manifestations is, the heat exchanger fouling of heating surface of hot-blast stove is serious on the one hand, and cleaning is got up also very difficult.Within six months, calculate by northern area Heating Period, heat exchanger fouling of heating surface is thick reaches 8 millimeters, and dust thermal conductivity factor is only the 1/600-800 of iron, and energy consumption day by day increases, and the thermal efficiency reduces greatly, makes the already very nervous energy become more nervous.Meanwhile, the wearing and tearing of high concentration flue dust also make the heat transmission equipment of hot-blast stove greatly shorten service life.On the other hand, coal-fired hot-blast stove run duration, discharges a certain amount of flue dust to atmosphere, atmosphere pollution is played to the effect of adding fuel to the flames, and makes already very fragile atmospheric environment become more fragile.
Summary of the invention
Goal of the invention of the present invention, is to provide one effectively to solve the problem, between existing combustion chamber of hot-blast stove and heat exchanger, installs dirt pocket additional, not only can dedusting, and the energy saving and environment friendly coal-fired hot-blast stove that can also be used to the waste heat of dust.
Technical scheme of the present invention is such, and energy saving and environment friendly coal-fired hot-blast stove comprises: combustion chamber of hot-blast stove, dirt pocket, heat exchanger and combustion fan; Between described combustion chamber of hot-blast stove and described heat exchanger, described dirt pocket is housed; Initial flue gas passage is provided with between described combustion chamber of hot-blast stove and described dirt pocket; Exhaust gases passes after purifying is provided with between described dirt pocket and described heat exchanger; Outside described dirt pocket, be provided with described combustion fan, the air intake of combustion fan is connected with the right lower quadrant of dirt pocket by wind-collecting cover, and the outlet air end of combustion fan is connected with described combustion chamber of hot-blast stove by ajutage; The right-hand member of described heat exchanger is respectively equipped with exhaust opening, hot-blast outlet and cold wind import from top to down.
Described dirt pocket comprises: gas baffle, grit waste heat recovery pipe, dirt pocket tube sheet and dirt pocket refractory plate; Described dirt pocket tube sheet is two pieces, front and back, and described dirt pocket refractory plate is upper and lower two pieces, and two pieces, front and back dirt pocket tube sheet is flush-mounted in the front and back end of upper and lower two pieces of dirt pocket refractory plates; Upper longitudinal between two pieces of dirt pocket tube sheets to be evenly coated with more than two, laterally for more than two rows and interlaced described in gas baffle, dirt pocket tube sheet is all stretched out at its two ends; Bottom between two pieces of dirt pocket tube sheets is longitudinally evenly coated with three above-described grit waste heat recovery pipe, and dirt pocket tube sheet is all stretched out at its two ends; The outside of described rear portion dirt pocket tube sheet is provided with air inlet duct, and the gas baffle stated of cover cap residence and grit waste heat recovery pipe stretch out the rear end of dirt pocket tube sheet; Described grit waste heat recovery pipe stretches out the front end of dirt pocket tube sheet by foregoing wind-collecting cover institute cover cap; The bottom of described anterior dirt pocket tube sheet has ash discharging hole.
Described gas baffle comprises blast pipe and connecting plate, and often organizing gas baffle is evenly be formed by fixedly connecting up and down by described connecting plate by two above-described blast pipes.
Feature of the present invention is reasonable in design, dedusting consumption reduction successful.Between existing combustion chamber of hot-blast stove and heat exchanger, install dirt pocket additional, can significantly improve heat exchanger fouling of heating surface and wear condition, and then improve hot-blast stove operating thermal efficiency and service life.Be applicable to installing and using of all kinds of use coal-fired hot-blast stove enterprise.
Accompanying drawing explanation
Fig. 1 is that energy saving and environment friendly coal-fired hot-blast stove master looks partial schematic sectional view;
Fig. 2 is that energy saving and environment friendly coal-fired hot-blast stove A-A is to cross-sectional schematic;
Fig. 3 is that energy saving and environment friendly coal-fired hot-blast stove overlooks partial schematic sectional view;
Fig. 4 is gas baffle overall structure schematic front view;
Fig. 5 is gas baffle cross sectional representation;
Wherein: exhaust gases passes, 6 gas baffles, 7 grit waste heat recovery pipe, 8 ash discharging holes, 9 exhaust openings, 10 hot-blast outlets, 11 cold wind imports, 12 combustion fans, 13 ajutages, 14 wind-collecting covers, 15 dirt pocket tube sheets, 16 air inlet ducts, 17 blast pipes, 18 connecting plates, 19 dirt pocket refractory plates after 1 combustion chamber of hot-blast stove, 2 dirt pockets, 3 heat exchangers, 4 initial flue gas passages, 5 purifications.
Detailed description of the invention.
As shown in accompanying drawing 1,2, energy saving and environment friendly coal-fired hot-blast stove comprises: combustion chamber of hot-blast stove 1, dirt pocket 2, heat exchanger 3 and combustion fan 12; Between described combustion chamber of hot-blast stove 1 and described heat exchanger 3, described dirt pocket 2 is housed; Initial flue gas passage 4 is provided with between described combustion chamber of hot-blast stove 1 and described dirt pocket 2; Exhaust gases passes 5 after purifying is provided with between described dirt pocket 2 and described heat exchanger 3; Outside described dirt pocket 2, be provided with described combustion fan 12, the air intake of combustion fan 12 is connected by the right lower quadrant of wind-collecting cover 14 with dirt pocket 2, and the outlet air end of combustion fan 12 is connected with described combustion chamber of hot-blast stove 1 by ajutage 13; The right-hand member of described heat exchanger 3 is respectively equipped with exhaust opening 9, hot-blast outlet 10 and cold wind import 11 from top to down.
As shown in accompanying drawing 1,2,3, described dirt pocket 2 comprises: gas baffle 6, grit waste heat recovery pipe 7, dirt pocket tube sheet 15 and dirt pocket refractory plate 19; Described dirt pocket tube sheet 15 is two pieces, front and back, and described dirt pocket refractory plate 19 is upper and lower two pieces, and two pieces, front and back dirt pocket tube sheet 15 is flush-mounted in the front and back end of upper and lower two pieces of dirt pocket refractory plates 19; Before and after upper longitudinal between two pieces of dirt pocket tube sheets 15 to be evenly coated with more than two, laterally for more than two rows and interlaced described in gas baffle 6 (the present embodiment provide be longitudinally evenly be coated with three groups or two groups, be laterally five rows and gas baffle in three groups or two groups layouts of interlocking), front and back dirt pocket tube sheet 15 is all stretched out at its two ends; Bottom between the two pieces of dirt pocket tube sheets 15 in front and back is longitudinally evenly coated with three above-described grit waste heat recovery pipe 7 (the present embodiment has 60 grit waste heat recovery pipe), and front and back dirt pocket tube sheet 15 is all stretched out at its two ends; The outside of described rear portion dirt pocket tube sheet 15 is provided with air inlet duct 16, and the gas baffle 6 stated of cover cap residence and grit waste heat recovery pipe 7 stretch out the rear end of rear portion dirt pocket tube sheet 15; Described grit waste heat recovery pipe 7 stretches out the front end of anterior dirt pocket tube sheet 15 by foregoing wind-collecting cover 14 cover caps; The bottom of described anterior dirt pocket tube sheet 15 has ash discharging hole 8.
As shown in accompanying drawing 4,5, described gas baffle 6 comprises blast pipe 17 and connecting plate 18, and often organizing gas baffle 6 is evenly be formed by fixedly connecting (the present embodiment provide be the gas baffle with three blast pipes) by two above-described blast pipes 17 by described connecting plate about 18.
Its operation principle is, after combustion chamber of hot-blast stove 1 is lighted a fire, combustion fan 12 starts to start, and the cold air outside stove is under the effect of combustion fan 12 negative pressure end, enter the blast pipe 17 on the gas baffle 6 that stretches out outside stove, be inhaled into combustion fan 12 through air inlet duct 16 and grit waste heat recovery pipe 7; Cold air under the positive pressure side effect of combustion fan 12, is admitted to combustion chamber of hot-blast stove 1 through ajutage 13 again.Meanwhile, the flue gas in combustion chamber of hot-blast stove 1 enters dirt pocket 2 through initial flue gas passage 4, and fast steering during flue gas shock gas baffle 6, soot dust granule, due to the inertia effect, is separated with flue gas.Clean flue gas after separation is entered heat exchanger 3 by exhaust gases passes 5 after purification and is discharged out of the furnace.And the separated soot dust granule got off under gravity, vertically downward with grit waste heat recovery pipe 7 cross-contact, form heat convection.Enter combustion chamber of hot-blast stove 1 after blast pipe 17 on gas baffle 6 and the air temperature in grit waste heat recovery pipe 7 are enhanced, and then substantially increase efficiency of combustion, achieve the object of grit waste heat recovering energy conserving.This just effectively improves dust stratification and the wear condition of heat exchanger heating surface, and then improves hot-blast stove operating thermal efficiency and service life.According to measuring and calculating, the dust stratification thickness of a Heating Period heat exchanger heating surface is no more than 1 millimeter, and the dust being discharged into air can reduce 60-80%; Combustion air to combustion chamber of hot-blast stove conveying can reach 70 DEG C, and the thermal efficiency can improve about 7%.
Claims (2)
1. energy saving and environment friendly coal-fired hot-blast stove, it comprises: combustion chamber of hot-blast stove (1), heat exchanger (3) and combustion fan (12); It is characterized in that, it also comprises dirt pocket (2); Between described combustion chamber of hot-blast stove (1) and described heat exchanger (3), described dirt pocket (2) is housed; Initial flue gas passage (4) is provided with between described combustion chamber of hot-blast stove (1) and described dirt pocket (2); Exhaust gases passes (5) after purifying is provided with between described dirt pocket (2) and described heat exchanger (3); Outside described dirt pocket (2), described combustion fan (12) is installed, the air intake of combustion fan (12) is connected by the right lower quadrant of wind-collecting cover (14) with dirt pocket (2), and the outlet air end of combustion fan (12) is connected with described combustion chamber of hot-blast stove (1) by ajutage (13); The right-hand member of described heat exchanger (3) is respectively equipped with exhaust opening (9), hot-blast outlet (10) and cold wind import (11) from top to down; Described dirt pocket (2) comprising: gas baffle (6), grit waste heat recovery pipe (7), dirt pocket tube sheet (15) and dirt pocket refractory plate (19); Described dirt pocket tube sheet (15) is two pieces, front and back, described dirt pocket refractory plate (19) is upper and lower two pieces, and two pieces, front and back dirt pocket tube sheet (15) is flush-mounted in the front and back end of upper and lower two pieces of dirt pocket refractory plates (19); Before and after upper longitudinal between two pieces of dirt pocket tube sheets (15) to be evenly coated with more than two, laterally for more than two rows and interlaced described in gas baffle (6), front and back dirt pocket tube sheet (15) are all stretched out at its two ends; Bottom between the two pieces of dirt pocket tube sheets (15) in front and back is longitudinally evenly coated with three above-described grit waste heat recovery pipe (7), and front and back dirt pocket tube sheet (15) are all stretched out at its two ends; The outside at described rear portion dirt pocket tube sheet (15) is provided with air inlet duct (16), and the gas baffle that cover cap residence is stated (6) and grit waste heat recovery pipe (7) stretch out the rear end at rear portion dirt pocket tube sheet (15); Described grit waste heat recovery pipe (7) stretches out the front end of anterior dirt pocket tube sheet (15) by foregoing wind-collecting cover (14) institute cover cap; The bottom of described anterior dirt pocket tube sheet (15) has ash discharging hole (8).
2. energy saving and environment friendly coal-fired hot-blast stove according to claim 1, it is characterized in that, described gas baffle (6) comprises blast pipe (17) and connecting plate (18), and often organizing gas baffle (6) is evenly be formed by fixedly connecting up and down by described connecting plate (18) by two above-described blast pipes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295552.5A CN103322677B (en) | 2013-07-16 | 2013-07-16 | Energy saving and environment friendly coal-fired hot-blast stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295552.5A CN103322677B (en) | 2013-07-16 | 2013-07-16 | Energy saving and environment friendly coal-fired hot-blast stove |
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| Publication Number | Publication Date |
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| CN103322677A CN103322677A (en) | 2013-09-25 |
| CN103322677B true CN103322677B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310295552.5A Expired - Fee Related CN103322677B (en) | 2013-07-16 | 2013-07-16 | Energy saving and environment friendly coal-fired hot-blast stove |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791999B (en) * | 2015-03-27 | 2016-03-02 | 杭州美宝炉窑工程有限公司 | A kind of direct-type environment friendly biological matter combustion heat wind furnace |
| CN108981154A (en) * | 2018-06-05 | 2018-12-11 | 芜湖秀成机械科技有限公司 | A kind of environmental protection and energy saving biomass thermal wind furnace |
| CN109458734B (en) * | 2018-10-31 | 2020-11-10 | 乐清旭耀科技有限公司 | Energy-saving environment-friendly coal-fired hot-blast stove |
| CN109701323A (en) * | 2019-01-16 | 2019-05-03 | 南京航空航天大学 | The axis stream Combined dust removal system and method for the high ash-laden gas of high temperature |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713376Y (en) * | 2004-08-04 | 2005-07-27 | 梁汉华 | A hot blast furnace |
| CN201322439Y (en) * | 2008-12-24 | 2009-10-07 | 大唐国际化工技术研究院有限公司 | Pulverized-coal burnt horizontal-type hot fume generating furnace |
| CN202485206U (en) * | 2012-03-26 | 2012-10-10 | 临朐三利机械设备有限公司 | Energy-saving air heating furnace |
| CN202947312U (en) * | 2012-11-27 | 2013-05-22 | 四川省登尧机械设备有限公司 | Metal hot-blast stove |
| CN203364407U (en) * | 2013-07-16 | 2013-12-25 | 鸡西市星光热风炉制造有限公司 | Energy-saving environment-friendly coal hot air furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5780116A (en) * | 1980-11-05 | 1982-05-19 | Hiroshi Shimizu | Combustion furnace of biomass |
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2013
- 2013-07-16 CN CN201310295552.5A patent/CN103322677B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713376Y (en) * | 2004-08-04 | 2005-07-27 | 梁汉华 | A hot blast furnace |
| CN201322439Y (en) * | 2008-12-24 | 2009-10-07 | 大唐国际化工技术研究院有限公司 | Pulverized-coal burnt horizontal-type hot fume generating furnace |
| CN202485206U (en) * | 2012-03-26 | 2012-10-10 | 临朐三利机械设备有限公司 | Energy-saving air heating furnace |
| CN202947312U (en) * | 2012-11-27 | 2013-05-22 | 四川省登尧机械设备有限公司 | Metal hot-blast stove |
| CN203364407U (en) * | 2013-07-16 | 2013-12-25 | 鸡西市星光热风炉制造有限公司 | Energy-saving environment-friendly coal hot air furnace |
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| CN103322677A (en) | 2013-09-25 |
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Granted publication date: 20160420 Termination date: 20190716 |