CN102278875A - Energy-saving and environment-friendly cupola furnace - Google Patents

Energy-saving and environment-friendly cupola furnace Download PDF

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Publication number
CN102278875A
CN102278875A CN2011102542472A CN201110254247A CN102278875A CN 102278875 A CN102278875 A CN 102278875A CN 2011102542472 A CN2011102542472 A CN 2011102542472A CN 201110254247 A CN201110254247 A CN 201110254247A CN 102278875 A CN102278875 A CN 102278875A
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CN
China
Prior art keywords
heat exchanger
energy
air
environment
conserving
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Pending
Application number
CN2011102542472A
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Chinese (zh)
Inventor
王洪旗
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王洪旗
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Priority to CN2011102542472A priority Critical patent/CN102278875A/en
Publication of CN102278875A publication Critical patent/CN102278875A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses an energy-saving and environment-friendly cupola furnace. By adding equipment such as a heat exchanger and a dust remover and performing recycling of heat energy, dust removal and desulfuration on the tail gas of furnace gas, effects of saving energy (reducing coke consumption) and reducing emission of pollutants (high-temperature gas, sulfur dioxide (SO2) and dust) are achieved; meanwhile, by adoption of a hot wind inlet technology, the temperature of the furnace is improved, the rejection rate of casting products is reduced, and economic benefits are increased.

Description

A kind of energy-conserving and environment-protective furnace cupola
Technical field
The present invention relates to a kind of furnace cupola.
Background technology
Reduction reaction can take place in furnace cupola in fusion process, make furnace gas tail gas produce about 13% CO, and flame temperature can reach 2095 ℃ during the CO burning, and calorific value is very high.Present employed furnace cupola generally is that furnace gas tail gas enters atmosphere by chimney, or because of the water that needs of cleaner directly carries out cooling processing, physics heat in the furnace gas tail gas and potential chemical heat (being the heat energy that the CO burning is discharged) are not utilized.This part heat energy summation is equivalent to 30% of used coke burning time institute's release heat in the production process, will not slattern in vain if be not utilized, so the energy-saving and cost-reducing potentiality of furnace cupola is huge.Pollutions such as the dust that atmosphere is caused owing to the furnace cupola exhaust emissions, sulfide simultaneously also can not be ignored.
Summary of the invention
The invention provides a kind of energy-conserving and environment-protective furnace cupola, it has the heat utilization efficiency height, and good dedusting effect is to characteristics such as atmosphere pollution is little.
For solving the problems of the technologies described above, the technical solution used in the present invention is: it comprises the furnace cupola body, it also comprises induced duct, heat exchanger, cleaner, air-introduced machine, chimney, air blast and warm-air pipe in addition, the hot-fluid inlet of heat exchanger links to each other with furnace cupola exhanst gas outlet portion by induced duct, its hot-fluid outlet links to each other with the air inlet of cleaner, and the air outlet of cleaner links to each other with chimney by air-introduced machine; The outlet of air blast links to each other with the cold flow of heat exchanger inlet, and the cold flow outlet of heat exchanger links to each other with the air inlet of furnace cupola by warm-air pipe.
Further improvement of the present invention is:
The heat exchanger that adopts is a shell-and-tube heat exchanger; The cleaner that adopts comprises dust hopper and spray type dust separator, and they are H shape and connect; Between air-introduced machine outlet and chimney, be connected with dehydrator; The used cleaning solution of spray type dust separator is an alkaline water; Heat exchanger can also use by many serial or parallel connections; The outside of induced duct, heat exchanger and warm-air pipe is provided with insulation material; The diameter of heat conduction standpipe is 90mm-114mm in the heat exchanger.
Adopt the beneficial effect that technique scheme produced to be:
Produce negative pressure by air-introduced machine, enter the secondary combustion chamber burning after can making the waste heat of furnace cupola furnace gas and CO thermal-arrest igniting in furnace cupola heat collecting chamber, enter heat exchanger again behind the gas of generation high temperature, send in the furnace cupola after making the cold wind of air blast become high temperature air, played the effect of energy-saving and emission-reduction by heat exchange.According to evidence, that goes into the stove wind-warm syndrome increases that to melt the variation of effect as follows with furnace cupola:
Go into the number of degrees of the wind-warm syndrome raising of stove 150—200℃ 300—400℃ 400—600℃
The coke consumption reduces percentage 15—20% 20—30% 45—50%
Molten iron temperature improves the number of degrees 20—25℃ 30—50℃ 50—100℃
Melting rate improves percentage 10—20% 25—30% 50—60%
Also can use many heat exchanger serial or parallel connections according to the actual conditions at scene, make the utilization that is fully absorbed of the used heat of tail gas, simultaneously to induced duct, insulation material is laid on the surface of heat exchanger and warm-air pipe, can reduce heat energy loss, the mode that cleaner adopts dust hopper and spray type dust separator to combine, can reclaim at dust hopper earlier big dust particle, remaining trickle particle reclaims once more by spray type dust separator, to reach the effect that dust is fully reclaimed, because the used cleaning solution of deduster is an alkaline water, can when reclaiming dust, remove the SO2 of tail gas.
The present invention both energy-conservation (reducing burnt consumption), reduce disposal of pollutants (high-temperature gas, SO2, dust) again, can be described as the low carbon products of a kind of high-quality (promptly low pollution, low emission, low cost), and because adopt hot blast air intake mode, furnace temperature is improved, reduced the sulfur content of product, product quality is improved.
Description of drawings
Fig. 1 is a structural representation of the present invention.
In the accompanying drawings: 1 furnace cupola, 2 air blasts, 3 secondary combustion chambers, 4 induced ducts, 5 heat exchangers, 6 dehydrators, 7 warm-air pipes, 8 chimneys, 9 dust hoppers, 10 spray type dust separators, 11 air-introduced machines.
The specific embodiment
By embodiment shown in Figure 1 as can be known, it comprises furnace cupola body 1, it also comprises induced duct 4, shell-and-tube heat exchanger 5, dust hopper 9, spray scrubber 11, air-introduced machine 11, chimney 8, dehydrator 6, air blast 2 and warm-air pipe 7 in addition, the hot-fluid inlet of shell-and-tube heat exchanger 5 links to each other with furnace cupola exhanst gas outlet portion by induced duct 4, its hot-fluid outlet links to each other with the air inlet of dust hopper 9, the air outlet of dust hopper 9 is connected with fountain scrubbing tower 11, and it links to each other with chimney 8 by air-introduced machine 11, dehydrator 6 again; The outlet of air blast 2 links to each other with the cold flow inlet of heat exchanger 5, and the cold flow outlet of heat exchanger 5 links to each other with the air inlet of furnace cupola 1 by warm-air pipe 7; Spray type dust separator 10 used cleaning solutions are alkaline water; Outside at induced duct 4, heat exchanger 5 and warm-air pipe 7 is provided with insulation material.
Operation principle:
The furnace gas tail gas of high temperature burns after induced duct is delivered in the heat exchanger at secondary combustion chamber, by heat pipe heat conduction, the cold wind that heat pipe is sent into heat exchanger to air blast is heated to high-temperature hot-air, send into furnace cupola through warm-air pipe, thereby make cool wind stove become high-temperature hot-air cupola, reach energy saving purposes, the quality that also makes simultaneously cast product improves because of the raising of furnace temperature; High-temperature furnace gas through heat exchanger conducts most of heat in the cold wind of sending into to air blast owing to heat pipe, so the furnace gas temperature behind its heat exchanger reduces greatly, furnace gas through cooling enters dust storage chamber, bigger grit is collected by dust storage chamber, and some tiny dust enter spray type dust separator and carry out dilatation through connecting airduct with furnace exhaust gas, and through the alkaline water smoke dust-removal and desulfurizing of multi-layer high-voltage spiral nozzle ejection, Jie Jing air enters atmosphere through induced duct, air-introduced machine, dehydrator by chimney afterwards.

Claims (8)

1. energy-conserving and environment-protective furnace cupola, it comprises furnace cupola body (1), it is characterized in that: it also comprises induced duct (4), heat exchanger (5), cleaner, air-introduced machine (11), chimney (8), air blast (2) and warm-air pipe (7), the hot-fluid inlet of described heat exchanger (5) links to each other with furnace cupola exhanst gas outlet portion by induced duct (4), its hot-fluid outlet links to each other with the air inlet of cleaner, and the air outlet of described cleaner links to each other with chimney (8) by air-introduced machine (11); The outlet of described air blast (2) links to each other with the cold flow inlet of heat exchanger (5), and the cold flow outlet of described heat exchanger (5) links to each other with the air inlet of furnace cupola (1) by warm-air pipe (7).
2. a kind of energy-conserving and environment-protective furnace cupola according to claim 1 is characterized in that the outside of described induced duct (4), heat exchanger (5) and warm-air pipe (7) is provided with insulation material.
3. a kind of energy-conserving and environment-protective furnace cupola according to claim 1 and 2 is characterized in that described heat exchanger (5) is a shell-and-tube heat exchanger.
4. according to claim 1,2 or 3 described a kind of energy-conserving and environment-protective furnace cupolas, it is characterized in that described cleaner comprises dust hopper (9) and spray type dust separator (10), they are H shape and connect.
5. a kind of energy-conserving and environment-protective furnace cupola according to claim 4 is characterized in that being connected with dehydrator (6) between described air-introduced machine (11) outlet and the chimney (8).
6. a kind of energy-conserving and environment-protective furnace cupola according to claim 4 is characterized in that the used cleaning solution of described spray type dust separator (10) is an alkaline water.
7. according to claim 1,2 or 3 described a kind of energy-conserving and environment-protective furnace cupolas, it is characterized in that described heat exchanger (5) uses for many serial or parallel connections.
8. a kind of energy-conserving and environment-protective furnace cupola according to claim 3 is characterized in that the diameter of the interior heat conduction standpipe of described heat exchanger (5) is 90mm-114mm.
CN2011102542472A 2011-08-31 2011-08-31 Energy-saving and environment-friendly cupola furnace Pending CN102278875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102542472A CN102278875A (en) 2011-08-31 2011-08-31 Energy-saving and environment-friendly cupola furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102542472A CN102278875A (en) 2011-08-31 2011-08-31 Energy-saving and environment-friendly cupola furnace

Publications (1)

Publication Number Publication Date
CN102278875A true CN102278875A (en) 2011-12-14

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CN2011102542472A Pending CN102278875A (en) 2011-08-31 2011-08-31 Energy-saving and environment-friendly cupola furnace

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CN (1) CN102278875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880090A (en) * 2015-06-02 2015-09-02 阳城县华王通用离心铸管厂 Combustible gas long-distance delivery and reutilization device of cupola furnace
CN110160367A (en) * 2019-07-02 2019-08-23 贵州省息烽县长宏铸造有限公司 A kind of three sections of continuous recovery methods of cupola furnace waste heat from tail gas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767343B1 (en) * 1995-10-03 2003-04-09 Ebara Corporation Heat recovery system and power generation system
CN1605637A (en) * 2004-09-10 2005-04-13 南京东大能源环保科技有限公司 Circulating fluidized bed mineral reducing roasting device and reducing roasting method
CN101196302A (en) * 2007-12-28 2008-06-11 辽宁省烟草公司鞍山市公司 Consumer waste self-burning device
CN102012032A (en) * 2010-12-29 2011-04-13 中国科学院广州能源研究所 Medical waste complete incineration device
CN202284894U (en) * 2011-08-31 2012-06-27 王洪旗 Energy-saving environment-friendly cupola furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767343B1 (en) * 1995-10-03 2003-04-09 Ebara Corporation Heat recovery system and power generation system
CN1605637A (en) * 2004-09-10 2005-04-13 南京东大能源环保科技有限公司 Circulating fluidized bed mineral reducing roasting device and reducing roasting method
CN101196302A (en) * 2007-12-28 2008-06-11 辽宁省烟草公司鞍山市公司 Consumer waste self-burning device
CN102012032A (en) * 2010-12-29 2011-04-13 中国科学院广州能源研究所 Medical waste complete incineration device
CN202284894U (en) * 2011-08-31 2012-06-27 王洪旗 Energy-saving environment-friendly cupola furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880090A (en) * 2015-06-02 2015-09-02 阳城县华王通用离心铸管厂 Combustible gas long-distance delivery and reutilization device of cupola furnace
CN104880090B (en) * 2015-06-02 2017-06-13 阳城县华王通用离心铸管厂 Furnace cupola fuel gas long-distance sand transport reuse means
CN110160367A (en) * 2019-07-02 2019-08-23 贵州省息烽县长宏铸造有限公司 A kind of three sections of continuous recovery methods of cupola furnace waste heat from tail gas

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Application publication date: 20111214