CN201251370Y - Heat recovery device of ferrous alloy smelting furnace - Google Patents
Heat recovery device of ferrous alloy smelting furnace Download PDFInfo
- Publication number
- CN201251370Y CN201251370Y CNU2008200947995U CN200820094799U CN201251370Y CN 201251370 Y CN201251370 Y CN 201251370Y CN U2008200947995 U CNU2008200947995 U CN U2008200947995U CN 200820094799 U CN200820094799 U CN 200820094799U CN 201251370 Y CN201251370 Y CN 201251370Y
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- separation layer
- recovery device
- smelting
- smelting furnace
- heat recovery
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A heat recovery device of ferrous alloy smelting furnace comprises a heat conductivity insulating layer (30) and an outer heat-insulating layer (20) which are covered outside a furnace body (10), and a tortuous reciprocal exhaust passage (40) which is composed of a smelting furnace escape hole (11), an insulating layer escape hole (31), an outer heat-insulating layer escape hole (21), a first exhaust passage (41) and a third exhaust passage (43), most of a wind pipe (51) of a wind supply system (50) is arranged in the heat conductivity insulating layer (30), the heat conductivity insulating layer (30) comprises a first insulating layer (32) and a second insulating layer (33), and the wind pipe (51) is preheated by inlet air or materials of a heated air heating smelting furnace. After the heat recovery device adopts the technical scheme, the temperature of waste gas discharge can be lowered, the influence to surrounding environment is reduced, simultaneously, heat in the waste gas also can be fully utilized, and energy resources can be saved.
Description
Technical field
The utility model relates to power-saving technology, particularly is used for the device of the waste gas produced waste heat recovery of ferroalloy smelting process.
Background technology
The high-temperature flue gas that is produced in the general ferroalloy metallurgy process is all directly arranged and carry out exhaust-gas treatment in exhaust-gas treatment facilities, this processing mode of carrying out earlier, a large amount of heat that will scatter and disappear in waste gas treatment process, not only contaminated environment and destroy the ecological balance also causes a large amount of energy wastes.And, this mode, exhaust-gas treatment facilities will have reasonable heat resistance, will cause cost to increase undoubtedly, and equipment is also relatively more expensive.In addition, present smelting furnace outer wall heat-insulating property is poor, and a large amount of heats are scattered and disappeared away by outer wall, influences environment too and wastes very big.
Summary of the invention
The utility model provides a kind of waste-heat recovery device of ferroalloy smelting smelting furnace, adopt the waste heat that reclaims earlier in the waste gas, and then carry out the processing of pollutant, make full use of the heat in the waste gas, reduce the waste of the energy, solve the big and bigger technical problem of energy waste in the prior art elder generation processing mode ambient influnence.
The scheme that the utility model solves the problems of the technologies described above is, the waste-heat recovery device of this ferroalloy smelting smelting furnace comprises the heat conduction separation layer that covers in the body of heater outside, this separation layer is provided with exhaust outlet, also comprises the external thermal insulation that covers in heat conduction separation layer outside, and this external thermal insulation also is provided with exhaust outlet; First exhaust passage, the 3rd exhaust passage folded between the exhaust outlet of this smelting furnace, separation layer exhaust outlet, external thermal insulation exhaust outlet and separation layer and body of heater and the external thermal insulation constitute circuitous reciprocal exhaust passage; Further include supply air system, this supply air system comprises that major part is arranged at airduct in the heat conduction separation layer and the air blast that is used for gas circulation, and the air inlet of this airduct connects atmosphere, and air outlet is communicated with the auxiliary heating part of this device.
Described separation layer comprises first separation layer and second separation layer, leaves second exhaust passage between described first separation layer and second separation layer, and it is opposite that first exhaust outlet of described first separation layer and second exhaust outlet of second separation layer are provided with direction; Described auxiliary heating part is arranged at the air inlet pipe place of smelting furnace or preheating place of the preceding material of melting; Described body of heater outside also is laid with the protective layer of inorganic material; Be doped with conductive particles in the described protective layer.
After the utility model adopts above-mentioned technical scheme, can reduce the temperature of toxic emission, reduce influence, can also make full use of the waste heat in the waste gas simultaneously, energy savings surrounding environment.
Description of drawings
Fig. 1 is that the master of the utility model ferroalloy smelting smelting furnace waste-heat recovery device looks cross-sectional schematic.
Fig. 2 is that the utility model adopts the master of double-deck separation layer to look cross-sectional schematic.
Fig. 3 is the schematic diagram of supply air system 50 described in the utility model.
The specific embodiment
In conjunction with above-mentioned description of drawings specific embodiment of the utility model.
By among Fig. 1 and Fig. 3 as can be known, a kind of waste-heat recovery device of ferroalloy smelting smelting furnace, this device comprise the heat conduction separation layer 30 that covers in body of heater 10 outsides, and this separation layer 30 is provided with exhaust outlet 31, also comprise the external thermal insulation 20 that covers in heat conduction separation layer 30 outsides, this external thermal insulation 20 also is provided with exhaust outlet 21; First exhaust passage 41, the 3rd exhaust passage 43 folded between the exhaust outlet 11 of this smelting furnace, separation layer exhaust outlet 31, external thermal insulation exhaust outlet 21 and separation layer 30 and body of heater 10 and the external thermal insulation 20 constitute circuitous reciprocal exhaust passage 40; Further include supply air system 50, this supply air system 50 comprises that major part is arranged at airduct 51 in the heat conduction separation layer 30 and the air blast 52 that is used for gas circulation, and the air inlet of this airduct 51 connects atmosphere, and air outlet is communicated with the auxiliary heating part 53 of this device.The utility model changes the open exhaust mode of original smelting furnace into the mode of closed exhaust, with separation layer and external thermal insulation original exhaust outlet is sealed, make waste gas in the process of discharging, must be through the exhaust passage between body of heater, separation layer and the external thermal insulation, in above-mentioned exhaust passage, install heat exchange coil additional then, the heat in the waste gas is remained, be used to add the air inlet of thermal material or smelting furnace, can reduce energy consumption, and reduce influence environment.Waste gas in the smelting furnace body of heater 10, at first the exhaust outlet 11 of process smelting furnace is expelled to first exhaust passage 41 between separation layer 30 and the body of heater 10, in this first exhaust passage 41, waste heat passed to the airduct 51 in the heat conduction separation layer 30, by the GAS ABSORPTION heat in the airduct 51.Waste gas drains in the 3rd exhaust passage 43 through separation layer exhaust outlet 31 afterwards, carry out heat exchange once more, discharge through external thermal insulation exhaust outlet 21 at last, in above-mentioned exhaust process, in the waste gas entrained heat fully and the cold air in the airduct 51 carry out heat exchange, not only can reduce the delivery temperature of waste gas, alleviate influence to environment, do not need very high heat resistance for exhaust-gas treatment facilities yet, reduced cost.And the waste heat in the waste gas also can be fully utilized, and reduces the consumption of the energy.
By among Fig. 2 as can be known, described separation layer 30 comprises first separation layer 32 and second separation layer 33, leave second exhaust passage 42 between described first separation layer 32 and second separation layer 33, it is opposite that first exhaust outlet 311 of described first separation layer 32 and second exhaust outlet 312 of second separation layer 33 are provided with direction.Increasing the separation layer purpose is in order to improve the effect of heat exchange, to keep the waste heat of waste gas as much as possible.
Described auxiliary heating part 53 is arranged at the air inlet pipe place of smelting furnace or preheating place of the preceding material of melting.
Described body of heater 10 outsides also are laid with the protective layer 12 of inorganic material, are doped with conductive particles 13 in the described protective layer 12.The utility model lays protective layer 12 at body of heater 10 outer surfaces, can protect body of heater, avoids waste gas that the corrosion and the body of heater of body of heater are produced oxidation, increases the service life.In protective layer, add conductive particles, can improve heat-conducting effect, simultaneously, adopt metal particle, can increase the shock resistance of protective layer.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the waste-heat recovery device of a ferroalloy smelting smelting furnace, it is characterized in that: this device comprises the heat conduction separation layer (30) that covers in body of heater (10) outside, this separation layer (30) is provided with exhaust outlet (31), also comprise the external thermal insulation (20) that covers in heat conduction separation layer (30) outside, this external thermal insulation (20) also is provided with exhaust outlet (21); First exhaust passage (41), the 3rd exhaust passage (43) folded between the exhaust outlet of this smelting furnace (11), separation layer exhaust outlet (31), external thermal insulation exhaust outlet (21) and separation layer (30) and body of heater (10) and the external thermal insulation (20) constitute circuitous reciprocal exhaust passage (40); Further include supply air system (50), this supply air system (50) comprises that major part is arranged at airduct (51) in the heat conduction separation layer (30) and the air blast (52) that is used for gas circulation, the air inlet of this airduct (51) connects atmosphere, and air outlet is communicated with the auxiliary heating part (53) of this device.
2. according to the waste-heat recovery device of the described ferroalloy smelting smelting furnace of claim 1, it is characterized in that: described separation layer (30) comprises first separation layer (32) and second separation layer (33), leave second exhaust passage (42) between described first separation layer (32) and second separation layer (33), it is opposite that first exhaust outlet (311) of described first separation layer (32) and second exhaust outlet (312) of second separation layer (33) are provided with direction.
3. according to the waste-heat recovery device of claim 1 or 2 described ferroalloy smelting smelting furnaces, it is characterized in that: described auxiliary heating part (53) is arranged at the air inlet pipe place of smelting furnace.
4. according to the waste-heat recovery device of claim 1 or 2 described ferroalloy smelting smelting furnaces, it is characterized in that: described auxiliary heating part (53) is arranged at preheating place of the preceding material of melting.
5. according to the waste-heat recovery device of claim 1 or 2 described ferroalloy smelting smelting furnaces, it is characterized in that: described body of heater (10) outside also is laid with the protective layer (12) of inorganic material.
6. according to the waste-heat recovery device of the described ferroalloy smelting smelting furnace of claim 5, it is characterized in that: be doped with conductive particles (13) in the described protective layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200947995U CN201251370Y (en) | 2008-05-20 | 2008-05-20 | Heat recovery device of ferrous alloy smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200947995U CN201251370Y (en) | 2008-05-20 | 2008-05-20 | Heat recovery device of ferrous alloy smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251370Y true CN201251370Y (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200947995U Expired - Fee Related CN201251370Y (en) | 2008-05-20 | 2008-05-20 | Heat recovery device of ferrous alloy smelting furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN201251370Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575117A (en) * | 2012-08-07 | 2014-02-12 | 随州市灵龙铜业有限公司 | Chimney heat waste gas reutilization furnace body for vertical alloy smelting furnace |
| CN107442761A (en) * | 2016-06-01 | 2017-12-08 | 郭俊峰 | Metal casting system and method |
-
2008
- 2008-05-20 CN CNU2008200947995U patent/CN201251370Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575117A (en) * | 2012-08-07 | 2014-02-12 | 随州市灵龙铜业有限公司 | Chimney heat waste gas reutilization furnace body for vertical alloy smelting furnace |
| CN107442761A (en) * | 2016-06-01 | 2017-12-08 | 郭俊峰 | Metal casting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090603 Termination date: 20120520 |