CN202747334U - Smokeless combustion system for zinc melting furnace - Google Patents
Smokeless combustion system for zinc melting furnace Download PDFInfo
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- CN202747334U CN202747334U CN 201220387099 CN201220387099U CN202747334U CN 202747334 U CN202747334 U CN 202747334U CN 201220387099 CN201220387099 CN 201220387099 CN 201220387099 U CN201220387099 U CN 201220387099U CN 202747334 U CN202747334 U CN 202747334U
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- melting furnace
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- zinc
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Abstract
The utility model relates to a smokeless combustion system for a zinc melting furnace. The smokeless combustion system comprises a furnace body and a feeding tipping bucket. The smokeless combustion system is characterized in that a reciprocating push feeding type fire grate is arranged in the furnace body; a spiral slag entrapment device is arranged below a slag outlet; and an automatic feeding device is arranged on a feed opening of the feeding tipping bucket. The smokeless combustion system for the zinc melting furnace further comprises an air preheater and a dust remover; a smoke exhaust opening and an air inlet of the furnace body are respectively connected with a hot air duct and the air preheater through a flue; and the air preheater is connected with a chimney through the dust remover and an induced draft fan. According to the smokeless combustion system disclosed by the utility model, the automatic feeding device, the reciprocating fire grate and an automatic flag discharging device are adopted, so that the vicious circle is prevented from being formed and the combustion efficiency of the zinc melting furnace is increased; and meanwhile, black smoke from the chimney is avoided.
Description
Technical field
The utility model 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-burning boiler operated by handwork 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 larger instantaneous concentration that can cause flue dust to generate, such combustion system very easily batch (-type) produces black smoke, this phenomenon not only serious environment pollution affects air quality, have a strong impact on peripheral resident's living environment, and be a kind of significant wastage of the energy.
The development of China in Recent Years zinc metallurgical production 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 greatly 39% of Gross World Product, 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 the 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 the important in inhibitings such as control to energy-saving and emission-reduction, environmental pollution, sustainable development.
Domestic except the large-scale zinc smelting enterprise of minority uses core-type induction furnace and oil-fired air-furnace, other most medium-sized and small enterprises use coal-fired reverberatory furnace, coal-burning boiler operated by handwork or miniature resistance stove more.The melting capacity of these several zinc melting furnaces is lower, and stoker workman's amount of labour is larger, and especially the melting furnace take coal as fuel needs the hand firing, not only needs the workman that certain experiences is arranged, and also produces easily smoke pollution environment.Although this combustion system shortcoming is many, because the insufficient funds of medium-sized and small enterprises, technology is relatively backward, 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 carbon, and black smoke is comprised of a lot of tiny carbonaceous particles, and it can float far in air, and is very large to harm.In the situation of lack of air, coal meeting imperfect combustion, discharge in a large number take hydrocarbon as main volatile matter, these volatile matters enter furnace cavity, under the condition of burner hearth anoxic, volatile matter can not normal combustion, experiences first the scission of link reaction, experiences dehydrogenation reaction again, cracking, dehydrogenation, superimposed, cyclisation just occur and generates 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 discharged to atmosphere, form black smoke.
The combustion-supporting air quantity that needs when fireman's coal is large, and because the coal seam is thick, the resistance that air enters is large, 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, enter the air capacity of burner hearth and the needed air capacity of coal combustion and coincide, oxygen debt burning can not occur, so can over-emitting black exhaust during normal combustion.When the fireman finds that the coal in the burner hearth will after-flame, during to the burner hearth coal, again can be thick because of the coal seam empress dowager, the air capacity that needs is large, and resistance is large so that the air capacity that passes in the burner hearth is few, the volatile matter of part coal meeting liberation of hydrogen, 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 design a kind of auto feed, reciprocal grate and automatic ash ejector system, avoid forming " vicious circle cycle ", improved the efficiency of combustion of zinc-melting furnace, avoid simultaneously the chimney over-emitting black exhaust.
Summary of the invention
The utility model is that a kind of smoke-less zinc-melting furnace combustion system will be provided, and this system adopts auto feed, reciprocal grate and automatic ash ejector system, avoids forming " vicious circle cycle ", can improve the efficiency of combustion of zinc-melting furnace, avoids simultaneously the chimney over-emitting black exhaust.
For achieving the above object, the technical solution of the utility model 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 grate is housed in the body of heater, spiral 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 inlet by flue and is connected with air preheater with hot-flow flue, and air preheater is connected with chimney with cold air duct with deduster and air-introduced machine by pressure fan respectively.Air preheater has promoted the temperature of combustion air by the waste heat of recovered 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, the transmission roll shaft, the changed course fluid cylinder, frame, middle frame, tailstock, decelerator, motor, be fixedly connected with middle frame between frame and the tailstock, on the middle frame, lower carrying idler and the holder of backhaul roller be set respectively, transmission roll shaft and changed course fluid cylinder are equipped with respectively in frame and tailstock two ends, be wound with transport tape between transmission roll shaft and the changed course fluid cylinder, and transport tape and carrying idler with the backhaul roller holder be connected and be connected, the transmission roll shaft is connected with reducer output shaft by shaft coupling, and reducer input shaft is connected with motor with fluid-flywheel clutch by brake.
The middle frame two ends are respectively equipped with cleaning head and empty segment sweeper.
The beneficial effects of the utility model are:
The utility model has been adopted automatic feeding device and has been liberated the fireman, " the vicious circle cycle " that produces when avoiding fireman's coal.Coal burns at reciprocal grate, from moisture separate out, Volatile, volatile combustion, coke burning, coke after-flame, can not have the process of air capacity deficiency, therefore, avoided " the vicious circle cycle " in the combustion process.The cinder in coal afterburnt is collected together by automatic deslagging system, delivers to the slag field.
Use reciprocal pushing feeding type grate to replace original fixed grate, use coal mode charging on the tipping bucket, spiral slag device deslagging greatly reduces stoker workman's the amount of labour, has improved production efficiency.Owing to use reciprocal pushing feeding type 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, and supports the use simultaneously deduster, has reduced the impact of industrial production on environment in addition.Simultaneously, zinc-melting furnace is over-emitting black exhaust not, and it is cleaner to illustrate 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 original technology upgrading transformation, constantly puies forward its performance, this is the recent developing direction of Chinese zinc smelting equipment.
Description of drawings
Fig. 1 is smoke-less zinc-melting furnace structural representation of the present utility model;
Fig. 2 is furnace binding cutaway view of the present utility model;
Fig. 3 is the automatic feeding device structural representation;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is spiral slag device structural representation.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Extremely shown in Figure 5 such as Fig. 1, a kind of smoke-less zinc-melting furnace combustion system of the present utility model comprises body of heater 1, charging tipping bucket 2, spiral 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 grate 13 etc.
Reciprocal pushing feeding type grate 13 is housed in the body of heater 1, spiral 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 grate 13 to replace original fixed grate, use coal mode charging on the tipping bucket, spiral slag device 36 deslagginves greatly reduce stoker workman's the amount of labour, have improved production efficiency.Owing to use reciprocal pushing feeding type 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 inlet to be connected with hot-flow flue by flue 9 respectively and is connected with air preheater 3, and air preheater 3 passes through respectively that pressure fan 10 is connected with deduster and air-introduced machine 5 and cold air duct 11 are connected with chimney and are connected.Support the use deduster, can reduce industrial production to the impact of environment.Simultaneously, zinc-melting furnace is over-emitting black exhaust not, and it is cleaner to illustrate that coal combustion gets, and has also improved energy utilization rate, play energy-conservation effect.
Such as 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 with middle frame 27 between frame 20 and the tailstock 28, middle frame 27 is upper and lower to arrange respectively carrying idler 25 and backhaul roller holder 26, transmission roll shaft 21 and changed course fluid cylinder 23 are equipped with respectively in frame 20 and 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 with the backhaul roller holder are connected near being connected, transmission roll shaft 21 is connected with decelerator 31 output shafts by shaft coupling 30, and decelerator 31 power shafts pass through brake 32 is connected with fluid-flywheel clutch and is connected with motor 34.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 at reciprocal grate, from moisture separate out, Volatile, volatile combustion, coke burning, coke after-flame, can not have the process of air capacity deficiency, therefore, 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 grate (13) is housed in the described body of heater (1), spiral 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: described smoke-less zinc-melting furnace combustion system also comprises air preheater (3), deduster (4), the body of heater exhaust opening is connected 7 with air inlet) be connected 8 with hot-flow flue by flue (9) respectively) be connected with air preheater (3), air preheater (3) passes through respectively pressure fan (10) is connected 4 with deduster) and air-introduced machine (5) be connected 12 with cold air duct (11) with chimney) be connected.
3. smoke-less zinc-melting furnace combustion system according to claim 1, it is characterized in that: described 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 with middle frame (27) between frame (20) and the tailstock (28), on the middle frame (27), lower carrying idler (25) and backhaul roller holder (26) be set respectively, transmission roll shaft (21) and changed course fluid cylinder (23) are equipped with respectively in frame (20) and 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) with the backhaul roller holder be connected 26) near being connected, transmission roll shaft (21) is connected with decelerator (31) output shaft by shaft coupling (30), and decelerator (31) power shaft is connected 33 by brake (32) with fluid-flywheel clutch) be connected with motor (34).
4. smoke-less zinc-melting furnace combustion system according to claim 3, it is characterized in that: described middle frame (27) two ends are respectively equipped with cleaning head (35) and empty segment sweeper (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387099 CN202747334U (en) | 2012-08-07 | 2012-08-07 | Smokeless combustion system for zinc melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387099 CN202747334U (en) | 2012-08-07 | 2012-08-07 | Smokeless combustion system for zinc melting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN202747334U true CN202747334U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220387099 Expired - Fee Related CN202747334U (en) | 2012-08-07 | 2012-08-07 | Smokeless combustion system for zinc melting furnace |
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|---|---|
| CN (1) | CN202747334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767823A (en) * | 2012-08-07 | 2012-11-07 | 上海应用技术学院 | Smokeless combustion system for zinc melting furnace |
-
2012
- 2012-08-07 CN CN 201220387099 patent/CN202747334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767823A (en) * | 2012-08-07 | 2012-11-07 | 上海应用技术学院 | Smokeless combustion system for zinc melting furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130807 |