CN102767823A - Smokeless combustion system for zinc melting furnace - Google Patents
Smokeless combustion system for zinc melting furnace Download PDFInfo
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- CN102767823A CN102767823A CN2012102777167A CN201210277716A CN102767823A CN 102767823 A CN102767823 A CN 102767823A CN 2012102777167 A CN2012102777167 A CN 2012102777167A CN 201210277716 A CN201210277716 A CN 201210277716A CN 102767823 A CN102767823 A CN 102767823A
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Abstract
The invention relates to a smokeless combustion system for a zinc melting furnace. The combustion system comprises a furnace body and a feeding skip bucket and is characterized in that a reciprocating push feed type fire grate is installed in the furnace body, a spiral slag entrapment device is installed below a slag outlet, and an automatic feeding device is arranged on a feeding port of the feeding skip bucket. The smokeless combustion system for the zinc melting furnace further comprises an air preheater and a deduster, a smoke outlet and an air inlet of the furnace body are connected with the air preheater respectively through a flue and a hot air duct, and the air preheater is connected with a chimney through the deduster and a draught fan. The automatic feeding device, the reciprocating fire grate and an automatic deslagging device are adopted in the smokeless combustion system for the zinc melting furnace, a vicious cycle period can be avoided, the combustion efficiency of the zinc melting furnace is improved, and the problem that black smoke is discharged out of the chimney is solved simultaneously.
Description
Technical field
The present invention relates to a kind of zinc-melting furnace combustion system, especially a kind of smoke-less zinc-melting furnace combustion system.
Background technology
Many zinc-melting furnace coal combustion systems are continued to use traditional design always in China; Coal-fired handwarmer or the coal-fired reverberatory furnaces of using more, its fuel requirement in combustion process is added manually, because fireman's coal is discontinuous and inhomogeneous; The intermittent burning of coal is insufficient; Paroxysmal, discontinuity and the bigger instantaneous concentration that can cause flue dust to generate, such combustion system very easily batch (-type) produce black smoke, and this phenomenon not only serious environment pollution influences air quality; Have a strong impact on peripheral resident's living environment, and be a kind of significant wastage of the energy.
Chinese in recent years zinc metallurgical production development is very fast, and its output and use amount all are sure to occupy the first in the world, and zinc metallurgy factory spreads all over national most of province, city.Have data to show that Chinese zinc concentrate output in 2009 is 4,350,000 tons, account for 39% of Gross World Product greatly, along with China's industrial expansion, this numeral also will continue to increase.This shows, like this huge zinc concentrate output and consumption figure, the adverse effect of environment that brings and energy aspect has become present zinc melting enterprise problem demanding prompt solution.Energy-saving zinc-melting furnace combustion system and use control to energy-saving and emission-reduction, environmental pollution, sustainable development etc. significance is arranged.
Domesticly use core-type induction furnace and the oil-fired air-furnace, other most medium-sized and small enterprises use coal-fired reverberatory furnace, coal-fired handwarmer or miniature resistance stove more except the large-scale zinc smelting enterprise of minority.The melting capacity of these several kinds of zinc melting furnaces is lower, and stoker workman's amount of labour is bigger, especially is that the melting furnace of fuel needs the hand firing with the coal, not only needs the workman that certain experience is arranged, and also is easy to generate smoke pollution environment.Though this combustion system shortcoming is many, because the insufficient funds of medium-sized and small enterprises, technology is backward relatively, so still be widely used.
During coal completing combustion, the main component in the flue gas is N
2, NOx, CO
2, O
2With these gases of steam all be colourless.The solid matter main component that forms black smoke is a carbon, and black smoke is made up of a lot of tiny carbonaceous particles, and it can float far in air, and is very big to human harm.Under the situation of lack of air; Coal meeting imperfect combustion, discharging a large amount of is main volatile matter with the hydrocarbon, these volatile matters get into furnace cavities; Under the condition of burner hearth anoxic; Volatile matter can not normal combustion, experience scission of link reaction earlier, experiences dehydrogenation reaction again, cracking, dehydrogenation, superimposed, cyclisation just take place and generates the polycyclic aromatic hydrocarbons (PAH) ［ PAH ］ more than the phosphorus content.The further cracking of polycyclic aromatic hydrocarbons (PAH), polymerization form carbon black, and carbon black has very strong inertia, in case form, are difficult to after-flame, along with flue gas is arranged to atmosphere, form black smoke.
The combustion-supporting air quantity that when fireman's coal, needs is big, and because the coal seam is thick, the resistance that air gets into is big; Air capacity can not satisfy the required air capacity of coal completing combustion, therefore, and the volatile matter of part coal meeting liberation of hydrogen, reunion; Form carbon black, the formation black smoke of from chimney, emerging.When the coal normal combustion, the air capacity that gets into burner hearth is identical with the needed air capacity of coal combustion, oxygen debt burning can not take place, so can over-emitting black exhaust during normal combustion.When the fireman finds that the coal in the burner hearth will after-flame, when the burner hearth coal, again can be thick because of the coal seam empress dowager; The air capacity that needs is big, and resistance makes that greatly the air capacity that feeds in the burner hearth is few, the volatile matter meeting liberation of hydrogen of part coal, reunion; Form carbon black, the formation black smoke of from chimney, emerging.Here it is " vicious circle cycle ".The present handwarmer of this situation is inevitable.Therefore, need a kind of auto feed of design, reciprocal grate and automatic slag-tapping system, avoid forming " vicious circle cycle ", improved the efficiency of combustion of zinc-melting furnace, avoid the chimney over-emitting black exhaust simultaneously.
Summary of the invention
The present invention will provide a kind of smoke-less zinc-melting furnace combustion system, and this system adopts auto feed, reciprocal grate and automatic slag-tapping system, avoids forming " vicious circle cycle ", can improve the efficiency of combustion of zinc-melting furnace, avoids the chimney over-emitting black exhaust simultaneously.
Be to realize above-mentioned purpose, technical scheme of the present invention is: a kind of smoke-less zinc-melting furnace combustion system, comprise body of heater, charging tipping bucket, and be characterized in: reciprocal pushing feeding type fire grate is housed in the body of heater, helical coil slag device is housed below the slag notch; The charging aperture of charging tipping bucket is provided with automatic feeding device.
Smoke-less zinc-melting furnace combustion system also comprises air preheater, deduster; The body of heater exhaust opening is connected with air preheater with hot-flow flue through flue respectively with air inlet, and air preheater is connected with chimney with cold air duct with deduster and air-introduced machine through pressure fan respectively.Air preheater has promoted the temperature of combustion air through reclaiming the waste heat of flue gas, has improved the efficient of zinc-melting furnace.
Automatic feeding device comprises transport tape, carrying idler, deflector chute, the holder of backhaul roller, transmission roll shaft, changed course fluid cylinder, frame, middle frame, tailstock, decelerator, motor; Be fixedly connected middle frame between frame and the tailstock; Middle frame is upper and lower to be provided with carrying idler and the holder of backhaul roller respectively; Frame and tailstock two ends are equipped with transmission roll shaft and changed course fluid cylinder respectively, are wound with transport tape between transmission roll shaft and the fluid cylinder that alters course, and transport tape and carrying idler and the holder of backhaul roller are near being connected; The transmission roll shaft is connected with reducer output shaft through shaft coupling, and reducer input shaft is connected with motor with fluid-flywheel clutch through brake.
The middle frame two ends are respectively equipped with cleaning head and empty segment sweeper.
The invention has the beneficial effects as follows:
The present invention has adopted automatic feeding device and has liberated the fireman, " the vicious circle cycle " that produces when avoiding fireman's coal.Coal burns on reciprocal grate, from moisture separate out, volatile matter is separated out, the burning of volatile combustion, coke, coke after-flame, can not have the not enough process of air capacity, therefore, has avoided " the vicious circle cycle " in the combustion process.The cinder in coal afterburnt to together, is delivered to the slag field through the self-skimming systematic collection.
Use reciprocal pushing feeding type fire grate to replace original fixed grate, use coal mode charging on the tipping bucket, helical coil slag device deslagging greatly reduces stoker workman's the amount of labour, has improved production efficiency.Owing to use reciprocal pushing feeding type fire grate that fire coal can be burnt by continous-stable, the imperfect combustion phenomenon that is similar to " over-emitting black exhaust " can or can not occur in addition, and supporting use deduster has reduced the influence of commercial production to environment simultaneously.Simultaneously, zinc-melting furnace is over-emitting black exhaust not, and it is cleaner to explain that coal combustion gets, and has also improved energy utilization rate, play energy-conservation effect.
Because medium and small enterprise in insufficient funds, can't all change by some smelting equipments that fall behind, and therefore to the original technique upgrading, constantly puies forward its performance, this is the recent developing direction of Chinese zinc smelting equipment.
Description of drawings
Fig. 1 is a smoke-less zinc-melting furnace structural representation of the present invention;
Fig. 2 is a furnace binding cutaway view of the present invention;
Fig. 3 is the automatic feeding device structural representation;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a helical coil slag device structural representation.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Extremely shown in Figure 5 like Fig. 1; A kind of smoke-less zinc-melting furnace combustion system of the present invention comprises body of heater 1, charging tipping bucket 2, helical coil slag device 36, automatic feeding device 37, air preheater 3, deduster 4, air-introduced machine 5, pressure fan 10, chimney 12, reciprocal pushing feeding type fire grate 13 etc.
Reciprocal pushing feeding type fire grate 13 is housed in the body of heater 1, helical coil slag device 36 (Fig. 5) is housed below the slag notch 6; Charging tipping bucket 2 charging apertures are provided with automatic feeding device 37.Use reciprocal pushing feeding type fire grate 13 to replace original fixed grate, use coal mode charging on the tipping bucket, helical coil slag device 36 deslagginves greatly reduce stoker workman's the amount of labour, have improved production efficiency.Owing to use reciprocal pushing feeding type fire grate 13 that fire coal can be burnt by continous-stable, the imperfect combustion phenomenon that is similar to " over-emitting black exhaust " can or can not occur in addition.
As shown in Figure 1, the body of heater exhaust opening of the molten zinc of smoke-less is connected with air preheater 3 with hot-flow flue 8 through flue 9 respectively with air inlet 7, and air preheater 3 is connected with chimney 12 with cold air duct 11 with deduster 4 and air-introduced machine 5 through pressure fan 10 respectively.Supporting use deduster can reduce the influence of commercial production to environment.Simultaneously, zinc-melting furnace is over-emitting black exhaust not, and it is cleaner to explain that coal combustion gets, and has also improved energy utilization rate, play energy-conservation effect.
Like Fig. 3, shown in 4, automatic feeding device 37 comprises transport tape 22, carrying idler 25, deflector chute 24, backhaul roller holder 26, transmission roll shaft 21, changed course fluid cylinder 23, frame 20, middle frame 27, tailstock 28, decelerator 31, motor 34 etc.Be fixedly connected middle frame 27 between frame 20 and the tailstock 28; Middle frame 27 is upper and lower to be provided with carrying idler 25 and backhaul roller holder 26 respectively; Frame 20 is equipped with transmission roll shaft 21 and changed course fluid cylinder 23 respectively with tailstock 28 two ends; Be wound with transport tape 22 between transmission roll shaft 21 and the changed course fluid cylinder 23; And transport tape 22 and carrying idler 25 and backhaul roller holder 26 are near being connected, and transmission roll shaft 21 is connected with decelerator 31 output shafts through shaft coupling 30, and decelerator 31 power shafts pass through brake 32 and are connected with motor 34 with fluid-flywheel clutch 33.Middle frame 27 two ends are respectively equipped with cleaning head 35 and empty segment sweeper 29.
Automatic feeding device has been liberated the fireman, " the vicious circle cycle " that produces when avoiding fireman's coal.Coal burns on reciprocal grate, from moisture separate out, volatile matter is separated out, the burning of volatile combustion, coke, coke after-flame, can not have the not enough process of air capacity, therefore, has avoided " the vicious circle cycle " in the combustion process.
Claims (4)
1. a smoke-less zinc-melting furnace combustion system comprises body of heater (1), charging tipping bucket (2), it is characterized in that: reciprocal pushing feeding type fire grate (13) is housed in the said body of heater (1), helical coil slag device (36) is housed below the slag notch (6); The charging aperture of charging tipping bucket (2) is provided with automatic feeding device (37).
2. smoke-less zinc-melting furnace combustion system according to claim 1; It is characterized in that: said smoke-less zinc-melting furnace combustion system also comprises air preheater (3), deduster (4); The body of heater exhaust opening is connected with air preheater (3) with hot-flow flue (8) through flue (9) respectively with air inlet (7), and air preheater (3) is connected with chimney (12) with cold air duct (11) with deduster (4) and air-introduced machine (5) through pressure fan (10) respectively.
3. smoke-less zinc-melting furnace combustion system according to claim 1; It is characterized in that: said automatic feeding device (37) comprises transport tape (22), carrying idler (25), deflector chute (24), backhaul roller holder (26), transmission roll shaft (2 1), changed course fluid cylinder (23), frame (20), middle frame (27), tailstock (28), decelerator (31), motor (34); Be fixedly connected middle frame (27) between frame (20) and the tailstock (28); Middle frame (27) is upper and lower to be provided with carrying idler (25) and backhaul roller holder (26) respectively; Frame (20) and tailstock (28) two ends are equipped with transmission roll shaft (21) and changed course fluid cylinder (23) respectively; Be wound with transport tape (22) between transmission roll shaft (21) and the changed course fluid cylinder (23); And transport tape (22) and carrying idler (25) and backhaul roller holder (26) are near being connected; Transmission roll shaft (21) is connected with decelerator (31) output shaft through shaft coupling (30), and decelerator (31) power shaft is connected with motor (34) with fluid-flywheel clutch (33) through brake (32).
4. smoke-less zinc-melting furnace combustion system according to claim 3 is characterized in that: said middle frame (27) two ends are respectively equipped with cleaning head (35) and empty segment sweeper (29).
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|---|---|---|---|
| CN2012102777167A CN102767823A (en) | 2012-08-07 | 2012-08-07 | Smokeless combustion system for zinc melting furnace |
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|---|---|---|---|
| CN2012102777167A CN102767823A (en) | 2012-08-07 | 2012-08-07 | Smokeless combustion system for zinc melting furnace |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2367558A (en) * | 1942-10-12 | 1945-01-16 | Badenhausen John Phillips | Steam generator |
| WO2008014667A1 (en) * | 2006-07-26 | 2008-02-07 | Dalian Boiler Works | Gas-injection boiler for oil field |
| CN101135454A (en) * | 2007-09-30 | 2008-03-05 | 哈尔滨工业大学 | Dangerous waste incineration device |
| CN201072128Y (en) * | 2007-07-19 | 2008-06-11 | 瑞威环能能源技术(北京)有限公司 | Biomass gasification electric generating apparatus of gas control type thermal decomposition system |
| CN101377296A (en) * | 2007-08-29 | 2009-03-04 | 郑州锅炉有限责任公司 | Boiler using waste slag of alcohol production by stalk combustion |
| CN101648091A (en) * | 2009-06-30 | 2010-02-17 | 宜昌英汉超声电气有限公司 | Back-wash filtering spiral deslagging machine |
| CN101829499A (en) * | 2010-05-18 | 2010-09-15 | 浙江大学 | SCR (Selective Catalytic Reduction) flue gas denitrification system with structure of optimized ammonia spraying device upstream fluid field |
| CN201666662U (en) * | 2010-04-10 | 2010-12-08 | 孙国华 | Boiler device for burning wood waste |
| CN102494346A (en) * | 2011-12-17 | 2012-06-13 | 章丘市盛隆锅炉设备有限公司 | Outer cylinder expansion device for spiral rotary drum deslagging device |
| CN202747334U (en) * | 2012-08-07 | 2013-02-20 | 上海应用技术学院 | Smokeless combustion system for zinc melting furnace |
-
2012
- 2012-08-07 CN CN2012102777167A patent/CN102767823A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2367558A (en) * | 1942-10-12 | 1945-01-16 | Badenhausen John Phillips | Steam generator |
| WO2008014667A1 (en) * | 2006-07-26 | 2008-02-07 | Dalian Boiler Works | Gas-injection boiler for oil field |
| CN201072128Y (en) * | 2007-07-19 | 2008-06-11 | 瑞威环能能源技术(北京)有限公司 | Biomass gasification electric generating apparatus of gas control type thermal decomposition system |
| CN101377296A (en) * | 2007-08-29 | 2009-03-04 | 郑州锅炉有限责任公司 | Boiler using waste slag of alcohol production by stalk combustion |
| CN101135454A (en) * | 2007-09-30 | 2008-03-05 | 哈尔滨工业大学 | Dangerous waste incineration device |
| CN101648091A (en) * | 2009-06-30 | 2010-02-17 | 宜昌英汉超声电气有限公司 | Back-wash filtering spiral deslagging machine |
| CN201666662U (en) * | 2010-04-10 | 2010-12-08 | 孙国华 | Boiler device for burning wood waste |
| CN101829499A (en) * | 2010-05-18 | 2010-09-15 | 浙江大学 | SCR (Selective Catalytic Reduction) flue gas denitrification system with structure of optimized ammonia spraying device upstream fluid field |
| CN102494346A (en) * | 2011-12-17 | 2012-06-13 | 章丘市盛隆锅炉设备有限公司 | Outer cylinder expansion device for spiral rotary drum deslagging device |
| CN202747334U (en) * | 2012-08-07 | 2013-02-20 | 上海应用技术学院 | Smokeless combustion system for zinc melting furnace |
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Application publication date: 20121107 |