CN102538493A - Device for using waste heat of high-temperature smoke of bath smelting furnace directly - Google Patents
Device for using waste heat of high-temperature smoke of bath smelting furnace directly Download PDFInfo
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- CN102538493A CN102538493A CN2012100333462A CN201210033346A CN102538493A CN 102538493 A CN102538493 A CN 102538493A CN 2012100333462 A CN2012100333462 A CN 2012100333462A CN 201210033346 A CN201210033346 A CN 201210033346A CN 102538493 A CN102538493 A CN 102538493A
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Abstract
The invention discloses a device for using waste heat of high-temperature smoke of a bath smelting furnace directly. The device comprises a smelting furnace flue, a transfer flue, a rotary kiln and a solid material heat exchanging and dust collecting device, wherein the smelting furnace flue is connected with a rotary kiln head through the transfer flue; the tail of the rotary kiln is connected with the solid material heat exchanging and dust collecting device through a low-temperature flue; and a discharge port of the solid material heat exchanging and dust collecting device is connected with a feed port of the rotary kiln through a low-temperature storage bin. By the device, the high-temperature smoke of the oxygen-enriched side-blown bath smelting furnace is used as a working heat source of the rotary kiln directly, heat of the low-temperature smoke at the tail of the rotary kiln is recycled by the solid material heat exchanging and dust collecting device for preheating materials, and heat energy is recycled and part of smoke dust is collected further. The device is simple in structure, is easy and convenient to operate, is stable and reliable in process running and is low in investment cost for transformation. By recycling the high-temperature smoke of the bath smelting furnace and the low-temperature smoke of the rotary kiln directly, the use ratio of the heat energy is improved by over 20 percent, and the device accords with the national industrial policy and is particularly suitable for industrial upgrading and technical transformation of medium-sized and small enterprises.
Description
Technical field
The invention belongs to the non-ferrous metal metallurgy technical field; Further belong to the bath smelting metallurgical technology field; After being specifically related to a kind of high-temperature flue gas recycling of bath smelting furnace generation; Feed back in the bath smelting technology and utilize again, directly reduce the direct use device of bath smelting furnace high-temperature flue gas waste heat that primary fuel consumes.
Background technology
Inventors area there are dozens of tin smelting enterprises, due mostly to adopt a more backward Gu wind furnace or electric furnace smelting lead tin smelting process technology, due to environmental pollution, high energy consumption process behind or in danger of being eliminated dangerous, enterprises need to carry out technological transformation and industrial upgrading.Through investigation, molten pool melting technology should be as the first-selection of these enterprises.At present, molten pool melting technology has been successfully applied to plumbous smelting industry in China, because the flue-gas temperature higher (about 950 ℃ ~ 1050 ℃) of bath smelting furnace; Dust rate high (10 ~ 15%); Need recycle waste heat and flue dust, but waste heat boiler generating or producing steam are still adopted in the waste heat recovery of all bath smelting furnaces at present, not only equipment investment is higher when being used to generate electricity; Requirement to the operator is also higher, and thermal energy conversion efficiency is lower.The more important thing is that according to current national industrial policies enterprise provides the power station for a short time for oneself and will be connected to the grid, very complicated difficult the handling of formality; On the other hand; Most of smelting enterprises production technology does not need steam, and the steam that waste heat boiler is produced is good utilisation not also, still is not suitable for these enterprises.In more molten pool melting technology, but the oxygen-enriched side-blowing bath melting technique is suitable for medium-sized and small enterprises is carried out upgrading owing to have the relatively little miniaturization of investment, characteristics such as simple to operate.More domestic areas and enterprise successfully are applied to refine plumbous industry with the oxygen-enriched side-blowing bath melting technique; Generating or producing steam are still adopted in its recovery to waste heat at present; Do not need steam because of these small enterprises again, and be unfavorable for this technology applying at medium-sized and small enterprises.But if the high-temperature flue gas of oxygen-enriched side-blowing bath smelting furnace is not used, the production cost of enterprise will be higher and unreasonable because of energy consumption; Therefore, to being master's medium-sized and small enterprises, need a kind of investment of exploitation less with the slicker solder smelting; Simple to operate, good energy-conserving effect is applicable to the energy-conservation practical technique of these smelting enterprise's production characteristics and requirement again; Supporting with the oxygen-enriched side-blowing bath melting technique, more help oxygen-enriched side-blowing bath melting technique applying at medium-sized and small enterprises.
Summary of the invention
The object of the present invention is to provide a kind of technology easy; Working stability is reliable; The high-temperature flue gas that can bath smelting furnace be produced reduces the direct use device of bath smelting furnace high-temperature flue gas waste heat that the rotary kiln primary fuel consumes directly as the work thermal source of rotary kiln.
The objective of the invention is to realize like this, comprise smelting furnace flue, switching flue, rotary kiln, expect the heat exchange dust trapping device admittedly, the smelting furnace flue is connected with the revolution kiln hood through the switching flue; Said rotary kiln afterbody connects through low temperature flue expects the heat exchange dust trapping device admittedly, is connected with the rotary kiln charging aperture through the low temperature feed bin admittedly expect heat exchange dust trapping device discharging opening.
The present invention directly as the work thermal source of rotary kiln, and utilizes the high-temperature flue gas of oxygen-enriched side-blowing bath smelting furnace to expect that admittedly the heat that the heat exchange dust trapping device reclaims rotary kiln afterbody low-temperature flue gas carries out preheating to material, the part of collecting simultaneously flue dust.The present invention is simple in structure, and is easy and simple to handle, the technology stable and reliable operation, and cost of investment is low.Not only the heat energy of the high-temperature flue gas of oxygen-enriched side-blowing bath smelting furnace is directly recycled; It is cold through table with low-temperature flue gas for a long time also to have changed the nonferrous metallurgy industry; Be dispersed into low-temperature heat quantity the present situation that does not reclaim in the atmosphere; The low temperature heat energy utilization ratio improves more than 20%, and good energy-conserving effect reduces the discharging of flue dust simultaneously.The present invention meets national industrial policies, can satisfy the needs of middle-size and small-size heat recovery, is specially adapted to industrial upgrading and technological transformation to medium-sized and small enterprises.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is for expect heat exchange dust trapping device overall structure half sectional view admittedly;
Among the figure: 1-smelting furnace flue, 2-measuring chute, 3-high temperature feed bin, 4-workbench, the 5-flue of transferring, 6-turns round kiln hood; The 7-rotary kiln, the 8-low temperature flue, 9-expects the heat exchange dust trapping device admittedly, 91-charging aperture, 92-mandrel, 93-supporting seat; 94-distributing device, the 95-heat exchanger plates that overturns, 96-returning face plate support, 97-moving tooth bar, 10-exhaust tube; 11-low temperature feed bin, 12-kiln tail expansion chamber, 13-turns round roller, 14-mating surface, 15-observation window.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described, but never in any form the present invention is limited, any change or improvement based on training centre of the present invention is done all belong to protection scope of the present invention.
Like Fig. 1, shown in 2, the present invention includes smelting furnace flue 1, switching flue 5, rotary kiln 7, expect heat exchange dust trapping device 9 admittedly that smelting furnace flue 1 is connected with revolution kiln hood 6 through switching flue 5; Said rotary kiln 7 afterbodys connect through low temperature flue 8 expects heat exchange dust trapping device 9 admittedly, is connected with rotary kiln 7 charging apertures through low temperature feed bin 11 admittedly expect heat exchange dust trapping device 9 discharging openings.
Described smelting furnace switching flue (5) is removable overall structure with revolution kiln hood (6); Be connected with workbench (4) through the roller on support and the support, described workbench (4) is gone up the track that is provided with and is matched with the revolution roller (13) of switching flue (5) with revolution kiln hood (6) support lower end.
The mating surface of described smelting furnace flue 1 and switching flue 5 is for outwards moving direction 2 ~ 3 ° the inclined-plane that tilts, so as to install or during maintenance both decomposition with cooperate.
Described revolution kiln hood 6 blanking ports are connected with the bath smelting furnace charge door through high temperature feed bin 3, measuring chute 2 successively.The mating surface of described revolution kiln hood (6) blanking port and high temperature feed bin (3) charging aperture is for outwards moving direction 2 ~ 3 ° the inclined-plane that tilts, so as to install or during maintenance both decomposition with cooperate.
Said high temperature feed bin 3 inwalls are provided with the refractory material lining, and its capacity is no less than 2 times an of inlet amount of bath smelting furnace.
Said measuring chute 2 outer setting adiabator layers, its capacity equals inlet amount of bath smelting furnace.
Said low temperature feed bin 11 outer setting adiabator layers, its capacity is no less than 5 times an of inlet amount of bath smelting furnace.
Saidly expect that admittedly heat exchange dust trapping device 9 is cylinder awl bottom structure, connect low temperature feed bins 11 admittedly expect heat exchange dust trapping device 9 awl bottom outlets.
Described low temperature flue 8 tangentially is communicated with expecting heat exchange dust trapping device 9 cylindrical portion bottom admittedly; Described exhaust tube 10 tangentially is communicated with expecting heat exchange dust trapping device 9 cylindrical portion tops admittedly.
As shown in Figure 3, describedly expect heat exchange dust trapping device 9 central longitudinal admittedly to mandrel 92 is set, the top is provided with charging aperture 91, corresponding to charging aperture 91 belows distributing device 94 is set on the said mandrel 92.
Describedly expect that admittedly the supporting seat 93 on heat exchange dust trapping device 9 inwalls is provided with returning face plate support 96, returning face plate support 96 is provided with upset plate package 95.
Described upset plate package 95 realizes upset through the fluted disc that the driving lever 97 that is provided with on the mandrel 92 is stirred on the upset heat exchanger plates.
The operation principle of the present invention and the course of work:
High-temperature flue gas (about 950 ~ 1050 ℃) from the oxygen-enriched side-blowing bath smelting furnace is directly introduced in the rotary kiln as the work thermal source of rotary kiln to the material heating through the switching flue; Material in rotary kiln through the mass-and heat-transfer process of low-temperature space of associating to the high-temperature region; Progressively in rotary kiln, be heated; Be heated to about 300 ~ 350 ℃ when arriving the revolution kiln hood, get into the high temperature feed bin through blanking port then.When the oxygen-enriched side-blowing bath smelting furnace needs charging, open high temperature feed bin baiting valve, material is placed to measuring chute after metering, imports in the oxygen-enriched side-blowing bath smelting furnace through the measuring chute baiting valve again, accomplishes one time fill process.The low-temperature flue gas of rotary kiln afterbody (about 300 ~ 350 ℃) is introduced through low temperature flue and is expected the heat exchange dust trapping device admittedly; Because expecting the diameter of heat exchange dust trapping device admittedly increases suddenly; Velocity of flue gas reduces suddenly, and the flue dust that diameter is bigger in the flue gas is because the gravity effect is settled down.Cold wet stock through distributing device with material be distributed in the solid material heat exchange dust trapping device, layering setting and individual layer be on the upset heat exchanger plates of radial arrangement along the center; After the less flue dust of diameter meets in the hot flue gas of cold wet stock and rising; Attached to being caught by cold wet stock on the cold wet stock; Together descending in company with material again rests in the solid material heat exchange dust trapping device, thereby has reduced the entrainment of flue dust in the outlet flue gas.Rotation with mandrel; Driving lever is stirred the fluted disc on the upset heat exchanger plates, and material successively is turned on lower floor's upset heat exchanger plates, carries out sufficient heat exchange with low-temperature flue gas; Material is preheating to about 100 ~ 150 ℃, gets into the low temperature feed bin at last and accomplishes warm.Meanwhile, the temperature when flue gas arrives outlet is dropped to about 200 ℃, through can directly getting into the bagroom processing of gathering dust behind the gravity settling chamber.Apparatus of the present invention can directly utilize the high-temperature flue gas of bath smelting furnace that the material through rotary kiln is heated, and have effectively improved the temperature of charge that gets into bath smelting furnace, have directly utilized the high temperature heat of the discharging of bath smelting furnace; Through low-temperature flue gas the material that gets into rotary kiln is got into preheating, further reclaimed flue gas heat energy, make the flue gas of discharge not need to show again coldly can get into the next process processing of gathering dust.Energy recovery is abundant, effectively reduces the reactive loss of heat energy, has reduced discharging, has reached the purpose of energy-saving and emission-reduction.
Claims (9)
1. direct use device of bath smelting furnace high-temperature flue gas waste heat; Comprise smelting furnace flue (1), switching flue (5), rotary kiln (7), expect to it is characterized in that heat exchange dust trapping device (9) admittedly: smelting furnace flue (1) is connected with revolution kiln hood (6) through switching flue (5); Said rotary kiln (7) afterbody connects through low temperature flue (8) expects heat exchange dust trapping device (9) admittedly, is connected with rotary kiln (7) charging aperture through low temperature feed bin (11) admittedly expect heat exchange dust trapping device (9) discharging opening.
2. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1; It is characterized in that: described smelting furnace switching flue (5) is removable overall structure with revolution kiln hood (6); Be connected with workbench (4) through the roller on support and the support, described workbench (4) is gone up the track that is provided with and is matched with the revolution roller (13) of switching flue (5) with revolution kiln hood (6) support lower end.
3. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1; It is characterized in that: the mating surface of described smelting furnace flue (1) and switching flue (5) is for outwards moving direction 2 ~ 3 ° the inclined-plane that tilts, so as to install or during maintenance both decomposition with cooperate.
4. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1; It is characterized in that: described revolution kiln hood (6) blanking port is connected with the bath smelting furnace charge door through high temperature feed bin (3), measuring chute (2) successively; The mating surface of described revolution kiln hood (6) blanking port and high temperature feed bin (3) charging aperture is for outwards moving direction 2 ~ 3 ° the inclined-plane that tilts, so as to install or during maintenance both decomposition with cooperate.
5. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1 is characterized in that: described high temperature feed bin (3) inwall is provided with the refractory material lining, and its capacity is no less than 2 times an of inlet amount of bath smelting furnace; Said measuring chute (2) outer setting adiabator layer, its capacity equal inlet amount of bath smelting furnace; Described low temperature feed bin (11) outer setting adiabator layer, its capacity is no less than 5 times an of inlet amount of bath smelting furnace.
6. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1 is characterized in that: describedly expect that admittedly heat exchange dust trapping device (9) is cylinder awl bottom structure, connect low temperature feed bin (11) admittedly expect heat exchange dust trapping device (9) awl bottom outlet.
7. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1 is characterized in that: described low temperature flue (8) tangentially is communicated with expecting heat exchange dust trapping device (9) cylindrical portion bottom admittedly; Described exhaust tube (10) tangentially is communicated with expecting heat exchange dust trapping device (9) cylindrical portion top admittedly.
8. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 1; It is characterized in that: describedly expect that admittedly heat exchange dust trapping device (9) central longitudinal is to mandrel (92) is set; The top is provided with charging aperture (91), and said mandrel (92) is gone up corresponding to charging aperture (91) below distributing device (94) is set.
9. the direct use device of bath smelting furnace high-temperature flue gas waste heat as claimed in claim 9; It is characterized in that: describedly expect that admittedly the supporting seat (93) on heat exchange dust trapping device (9) inwall is provided with returning face plate support (96), returning face plate support (96) is provided with upset plate package (95); Described upset plate package (95) goes up the driving lever (97) that is provided with through mandrel (92) and stirs the fluted disc realization upset on the upset heat exchanger plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210033346.2A CN102538493B (en) | 2012-02-15 | 2012-02-15 | Device for using waste heat of high-temperature smoke of bath smelting furnace directly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210033346.2A CN102538493B (en) | 2012-02-15 | 2012-02-15 | Device for using waste heat of high-temperature smoke of bath smelting furnace directly |
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| CN102538493A true CN102538493A (en) | 2012-07-04 |
| CN102538493B CN102538493B (en) | 2014-04-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103194594A (en) * | 2013-04-19 | 2013-07-10 | 长沙矿冶研究院有限责任公司 | Process system for reducing magnetized iron ore statically and deeply and method for reducing magnetized iron ore deeply by utilizing system |
| CN104776723A (en) * | 2015-03-20 | 2015-07-15 | 卢坤 | Environment-friendly and energy-saving production method for casting melt by using non-ferrous metal |
| CN105695756A (en) * | 2016-02-02 | 2016-06-22 | 云南祥云飞龙再生科技股份有限公司电铅厂 | Comprehensive recovery treatment method and equipment for lead-zinc smelting slag |
| CN112595106A (en) * | 2020-12-07 | 2021-04-02 | 张绪祎 | High-concentration oxygen cyclone combustion liquid-state melting treatment material system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112595106A (en) * | 2020-12-07 | 2021-04-02 | 张绪祎 | High-concentration oxygen cyclone combustion liquid-state melting treatment material system |
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| CN102538493B (en) | 2014-04-09 |
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Inventor after: Wu Jianming Inventor after: Xie Guanhua Inventor after: Li Guo Inventor after: Liu Yong Inventor after: Lu Di Inventor before: Wu Jianmin Inventor before: Xie Guanhua Inventor before: Li Guo Inventor before: Liu Yong Inventor before: Lu Di |
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Free format text: CORRECT: INVENTOR; FROM: WU JIANMIN XIE GUANHUA LI GUO LIU YONG LU TO: WU JIANMING XIE GUANHUA LI GUO LIU YONG LU 201210033347.7;2012.12.19;BIBLIOGRAPHIC CHANGE |
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Granted publication date: 20140409 Termination date: 20210215 |