CN108645231B - Preheating recovery system of aluminum heating furnace - Google Patents
Preheating recovery system of aluminum heating furnace Download PDFInfo
- Publication number
- CN108645231B CN108645231B CN201810811811.8A CN201810811811A CN108645231B CN 108645231 B CN108645231 B CN 108645231B CN 201810811811 A CN201810811811 A CN 201810811811A CN 108645231 B CN108645231 B CN 108645231B
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- pipe
- flue gas
- heating furnace
- combustion
- heat recovery
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 238000011084 recovery Methods 0.000 title claims abstract description 72
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000003546 flue gas Substances 0.000 claims abstract description 91
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 239000000779 smoke Substances 0.000 claims abstract description 15
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 3
- 230000008602 contraction Effects 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 238000004064 recycling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Air Supply (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides an aluminum heating furnace preheating recovery system applied to the technical field of waste heat recovery equipment, wherein a heat recovery pipe (3) is arranged on a flue gas discharge pipe (2) on a heating furnace body (1) of the aluminum heating furnace preheating recovery system, a hollow part of each stainless steel rectangular pipe (4) of the heat recovery pipe (3) is a smoke exhaust pipe, a cold air heating pipe (20) with a serpentine structure is arranged in the heat recovery pipe (3), a combustion-supporting fan (5) is arranged on one side surface of the heat recovery pipe (3), an air outlet pipe of the combustion-supporting fan is communicated with one end of the cold air heating pipe (20), and the other end of the cold air heating pipe (20) is communicated with an air inlet of a burner.
Description
Technical Field
The invention belongs to the technical field of waste heat recovery equipment, and particularly relates to a preheating recovery system of an aluminum heating furnace.
Background
In the technical field of aluminum profile processing, a heating furnace is required to be used when an aluminum raw material is heated. The high-temperature flue gas generated by the heating furnace is directly discharged into the atmosphere through a flue gas discharge pipe of the heating furnace. Therefore, heat energy loss is caused, heat energy resource waste is caused, and the ambient temperature of the production workshop is increased by high-temperature flue gas, so that a worker works in a high-temperature environment.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the utility model provides a simple structure can carry out reliable recycle to the high temperature flue gas that the heating furnace produced, when effectively realizing heat energy and recycling, practices thrift the cost, effectively reduces the temperature of the flue gas of discharging into the atmosphere for the whole temperature of workshop reduces, improves the aluminum product heating furnace preheating recovery system of manual work environment comfort level.
The technical scheme adopted by the invention is as follows:
the invention relates to an aluminum heating furnace preheating recovery system, which comprises a heating furnace body, wherein a flue gas discharge pipe is arranged on the heating furnace body, a heat recovery pipe is arranged on the flue gas discharge pipe, the heat recovery pipe comprises a plurality of hollow stainless steel rectangular pipes, the hollow part of each stainless steel rectangular pipe is a smoke discharge pipe, the smoke discharge pipe is communicated with the outside, a cold air heating pipe with a serpentine structure is arranged in the heat recovery pipe, a combustion-supporting fan is arranged on one side surface of the heat recovery pipe, an air outlet pipe of the combustion-supporting fan is communicated with one end of the cold air heating pipe, the other end of the cold air heating pipe is communicated with an air inlet of a burner, and the combustion-supporting fan is connected with a control component capable of controlling the start and stop of the combustion-supporting fan and air quantity adjustment.
An exchanger base is arranged between the flue gas discharge pipe and the heat recovery pipe of the heating furnace body, an air valve shaft is arranged on the exchanger base, the air valve shaft is arranged to penetrate through the structure inside a base pipeline of the exchanger base, and the side surfaces of the stainless steel rectangular pipes are welded and connected to form an integral heat recovery pipe.
The base pipeline of the exchanger base inside still set up the flue gas and discharge the tube cap, the flue gas discharges the tube cap and is located the exhaust pipe upper port position of flue gas and discharge the tube, fixed connection removes the member on the tuber fle axle, remove the member and cover the exhaust lid seat on the flue gas and pass through connecting axle swing joint, the tuber fle axle outside sets up eccentric pole, the cylinder is connected with eccentric pole, the control unit control cylinder when flexible, the cylinder sets up to can drive the tuber fle axle through eccentric pole and rotate to drive the structure that the flue gas discharged the tube cap to be close to or keep away from port orientation and remove on the exhaust pipe.
The base pipeline of the exchanger base inside still set up the fume emission tube lid, the fume emission tube lid is located the position directly over the last port of the discharge tube of fume emission tube, and the fume emission tube lid passes through cylinder and air valve axle swing joint, and the cylinder is connected with the control unit that can control the cylinder flexible, control unit control cylinder flexible time, the cylinder set up to can drive fume emission tube lid vertical movement from top to bottom to drive fume emission tube lid to be close to or keep away from the last port direction of discharge tube and remove the structure.
When the control part controls the air cylinder to extend, the air cylinder is arranged to be capable of driving the flue gas discharge pipe cover to move downwards and lean against the structure of the upper port position of the discharge pipe of the flue gas discharge pipe, and when the control part controls the air cylinder to shrink, the air cylinder is arranged to be capable of driving the flue gas discharge pipe cover to move upwards and leave the structure of the upper port position of the discharge pipe of the flue gas discharge pipe.
The heat recovery pipe is vertically arranged at the upper part of the base of the exchanger, the upper port of the exhaust pipe of the flue gas exhaust pipe is connected with the lower part of the base of the exchanger, and the side surfaces of each adjacent welded stainless steel rectangular pipe are arranged to be in a structure of being attached together.
The flue gas discharge pipe is arranged in a vertical arrangement structure, the air pipe of the burner is arranged in a horizontal arrangement structure, and the air outlet pipe of the combustion-supporting fan is arranged horizontally.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
when the heating furnace heats the aluminum raw material, the flue gas of the heating furnace is discharged from the flue gas discharge pipe and then enters the heat recovery pipe, and as the heat recovery pipe consists of a plurality of stainless steel rectangular pipes, each stainless steel pipe absorbs heat in the flue gas respectively when the flue gas passes through the stainless steel pipes. The flue gas passing through the heat recovery pipe can realize cooling and then is discharged into the atmosphere. The temperature of the discharged flue gas can be reduced by about 100 ℃ from about 200 ℃ to about 100 ℃. When the cold air of the combustion-supporting fan is conveyed through the air outlet pipe of the combustion-supporting fan, the cold air heating pipe is of a serpentine structure, so that the cold air is bent and arranged in the heat recovery pipe in a reciprocating manner when flowing through the cold air heating pipe, and the cold air is fully subjected to cold-heat exchange with the heat absorbed by the heat recovery pipe, so that the heat flows out of the cold air heating pipe and enters the air inlet of the burner, and then enters the burner through the air pipe of the burner, the hot air contributes to the combustion effect of the burner, and the energy utilization effect is achieved. The preheating and recycling system of the aluminum heating furnace has a simple structure, can reliably recycle the heat generated by the heating furnace, effectively reduces the temperature of the flue gas discharged into the atmosphere while effectively realizing the reutilization of heat energy and saving the cost, reduces the overall temperature of a production workshop and improves the comfort level of the artificial working environment. According to the preheating recovery system of the aluminum heating furnace, disclosed by the invention, the smoke is utilized to preheat the combustion-supporting cold air, so that the combustion efficiency is improved, the fuel is effectively saved, the exhaust temperature of a smoke outlet is reduced, and the system performance is comprehensively improved.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic diagram of a preheating recovery system of an aluminum heating furnace according to the present invention;
the reference numerals in the figures are respectively: 1. a heating furnace body; 2. a flue gas discharge pipe; 3. a heat recovery tube; 4. stainless steel rectangular tube; 5. a combustion fan; 6. a burner air duct; 7. a control part; 8. an exchanger base; 9. a damper shaft; 10. a base pipe; 11. a flue gas discharge pipe cover; 12. an upper port of the discharge pipe; 13. a cylinder; 14. an air outlet pipe of the combustion-supporting fan; 15. a combustion supporting machine mounting seat; 16. tilting the supporting ribs; 17. moving the rod member; 18. a discharge cap base; 19. an eccentric rod; 20. and (5) heating the pipe by cold air.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present invention by describing examples in further detail:
as shown in figure 1, the invention relates to an aluminum heating furnace preheating recovery system, which comprises a heating furnace body 1, wherein a flue gas discharge pipe 2 is arranged on the heating furnace body 1, a heat recovery pipe 3 is arranged on the flue gas discharge pipe 2, the heat recovery pipe 3 comprises a plurality of hollow stainless steel rectangular pipes 4, the hollow part of each stainless steel rectangular pipe 4 is a smoke exhaust pipe, the smoke exhaust pipe is communicated with the flue gas discharge pipe 2 and the outside, a cold air heating pipe 20 with a serpentine structure is arranged in the heat recovery pipe 3, a combustion-supporting fan 5 is arranged on one side surface of the heat recovery pipe 3, an air outlet pipe of the combustion-supporting fan is communicated with one end of the cold air heating pipe 20, the other end of the cold air heating pipe 20 is communicated with an air inlet of a burner, and the combustion-supporting fan 5 is connected with a control part 7 capable of controlling the start and stop of the combustion-supporting fan 5 and air quantity adjustment. Above-mentioned structure, when the heating furnace heats the aluminum product raw materials, the flue gas of heating furnace is discharged from flue gas exhaust pipe 2, then gets into the heat recovery pipe, because the heat recovery pipe comprises many stainless steel quarter butt 4, when the flue gas passes through the stainless steel pipe, every stainless steel pipe absorbs the heat in the flue gas respectively. The flue gas passing through the heat recovery pipe can realize cooling and then is discharged into the atmosphere. The temperature of the discharged flue gas can be reduced by about 100 ℃ from about 200 ℃ to about 100 ℃. When the cold air of the combustion-supporting fan is conveyed through the air outlet pipe of the combustion-supporting fan, the cold air heating pipe 20 passes through the heat recovery pipe, and is in a serpentine structure, so that the cold air is bent and arranged in the heat recovery pipe in a reciprocating manner, so that the cold air is fully subjected to cold-heat exchange with the heat absorbed by the heat recovery pipe 3 when flowing through the cold air heating pipe, the heat flows out of the cold air heating pipe and enters the air inlet of the burner, the heat is heated to about 200 ℃, then enters the burner through the air pipe of the burner, the hot air contributes to the combustion effect of the burner, and the energy utilization effect is achieved. The preheating and recycling system of the aluminum heating furnace has a simple structure, can reliably recycle the heat generated by the heating furnace, effectively reduces the temperature of the flue gas discharged into the atmosphere while effectively realizing the reutilization of heat energy and saving the cost, reduces the overall temperature of a production workshop and improves the comfort level of the artificial working environment. The preheating recovery system of the aluminum heating furnace utilizes the flue gas to preheat the combustion-supporting cold air, improves the combustion efficiency, effectively saves the fuel, and reduces the exhaust temperature of the smoke outlet.
An exchanger base 8 is arranged between the flue gas discharge pipe 2 and the heat recovery pipe 3 of the heating furnace body 1, an air valve shaft 9 is arranged on the exchanger base 8, the air valve shaft 9 is arranged to penetrate through the structure inside a base pipeline 10 of the exchanger base 8, and the side surfaces of the stainless steel rectangular pipes 4 are welded and connected to form an integral heat recovery pipe 3. The base pipeline 10 of the exchanger base 8 inside still set up the flue gas emission tube cover 11, the flue gas emission tube cover 11 is located the position just above the exhaust pipe upper port 12 of flue gas emission tube 2, fixed connection removes member 17 on the air valve shaft 9, remove member 17 and the exhaust lid seat 18 on the flue gas emission tube cover 11 through connecting axle swing joint, the air valve shaft 9 outside sets up eccentric rod 19, cylinder 13 is connected with eccentric rod 19, the control part 7 control cylinder 13 when flexible, cylinder 13 sets up to can drive the air valve shaft 9 rotation through eccentric rod to drive the structure that flue gas emission tube cover 11 moved to being close to or keeping away from exhaust pipe upper port 12 direction. Through the arrangement of the flue gas discharge pipe cover, when the control part controls the cylinder to stretch out and draw back, the cylinder can push the eccentric rod to swing, the eccentric rod swings to drive the air valve shaft to rotate, and when the air valve shaft rotates, the movable rod fixed on the air valve shaft can be driven to swing, and when the movable rod swings, the flue gas discharge pipe cover can be driven to move up and down, so that the upper port 12 of the discharge pipe can be opened or closed. When the recovery system works, when the combustion machine heats with big fire, the smoke discharge pipe cover rises and opens through the action of the air cylinder, at the moment, the smoke waste heat is recovered and discharged, and the effect of balancing the internal pressure of the heating furnace is achieved through temperature reduction, so that the internal pressure of the heating furnace is kept unchanged; when the burner is used for keeping warm with small fire, the smoke discharge pipe cover is closed in a descending way through the action of the air cylinder, so that the heat energy loss of the heating furnace is prevented.
The base pipeline 10 of the exchanger base 8 is internally provided with a flue gas discharge pipe cover 11, the flue gas discharge pipe cover 11 is positioned right above the upper port 12 of the flue gas discharge pipe 2, the flue gas discharge pipe cover 11 is movably connected with the air valve shaft 9 through an air cylinder 13, the air cylinder 13 is connected with a control component 7 capable of controlling the air cylinder 13 to stretch and retract, and when the control component 7 controls the air cylinder 13 to stretch and retract, the air cylinder 13 is arranged to be capable of driving the flue gas discharge pipe cover 11 to vertically move up and down so as to drive the flue gas discharge pipe cover 11 to move towards the direction close to or far away from the upper port 12 of the flue gas discharge pipe. When the control part 7 controls the air cylinder 13 to extend, the air cylinder 13 is arranged to be capable of driving the flue gas discharge pipe cover 11 to move downwards and lean against the position of the upper port 12 of the discharge pipe of the flue gas discharge pipe 2, and when the control part 7 controls the air cylinder 13 to shrink, the air cylinder 13 is arranged to be capable of driving the flue gas discharge pipe cover 11 to move upwards and leave the position of the upper port 12 of the discharge pipe of the flue gas discharge pipe 2. The structure is used as another design thought that the air cylinder drives the flue gas emission pipe cover to be opened or closed, and the opening and the closing of the flue gas emission pipe cover can be conveniently controlled.
The heat recovery pipe 3 is vertically arranged at the upper part of the exchanger base 8, the upper port 12 of the exhaust pipe of the flue gas exhaust pipe 2 is connected with the lower part of the exchanger base 8, and the side surfaces of each adjacent welded stainless steel rectangular pipe 4 are arranged to be in a structure of being attached together. The flue gas discharge pipe 2 is arranged vertically, the resistance is reduced, the flue gas is discharged reliably, the burner air pipe 6 is arranged horizontally, and the combustion-supporting fan air outlet pipe 14 is arranged horizontally. The structure is beneficial to the rapid circulation of cold air and effectively improves the cold air supply efficiency.
The preheating recovery system of the aluminum heating furnace further comprises a combustion supporting machine mounting seat 15, the combustion supporting machine mounting seat 15 is mounted on the side face of the exchanger base 8, the lower surface of the combustion supporting fan 5 is connected with the upper surface of the combustion supporting fan mounting seat 15, and a plurality of inclined supporting ribs 16 which are arranged according to gaps are arranged between the exchanger base 8 and the lower surface of the combustion supporting fan mounting seat 15. Above-mentioned structure, combustion-supporting machine mount pad can realize the reliable arrangement of combustion-supporting fan, plays reliable supporting role. Thereby ensure that combustion-supporting fan can reliably work, and the slope supporting rib is used for strengthening the mount pad bulk strength.
When the heating furnace heats the aluminum raw material, the flue gas of the heating furnace is discharged from the flue gas discharge pipe and then enters the heat recovery pipe, and as the heat recovery pipe consists of a plurality of stainless steel rectangular pipes, each stainless steel pipe absorbs heat in the flue gas respectively when the flue gas passes through the stainless steel pipes. The flue gas passing through the heat recovery pipe can realize cooling and then is discharged into the atmosphere. The temperature of the discharged flue gas can be reduced by about 100 ℃ from about 200 ℃ to about 100 ℃. When the cold air of the combustion-supporting fan is conveyed through the air outlet pipe of the combustion-supporting fan, the cold air heating pipe is of a serpentine structure, so that the cold air is bent and arranged in the heat recovery pipe in a reciprocating manner, and when the cold air flows through the cold air heating pipe, the cold air is fully subjected to cold-heat exchange with the heat absorbed by the heat recovery pipe, so that the heat flows out of the cold air heating pipe and enters the air inlet of the burner, the cold air can be heated to about 200 ℃, then enters the burner through the air pipe of the burner, and the hot air contributes to the combustion effect of the burner, so that the energy recycling effect is achieved. The preheating and recycling system of the aluminum heating furnace has a simple structure, can reliably recycle the heat generated by the heating furnace, effectively reduces the temperature of the flue gas discharged into the atmosphere while effectively realizing the reutilization of heat energy and saving the cost, reduces the overall temperature of a production workshop and improves the comfort level of the artificial working environment. According to the preheating recovery system of the aluminum heating furnace, disclosed by the invention, the smoke is utilized to preheat the combustion-supporting cold air, so that the combustion efficiency is improved, the fuel is effectively saved, the exhaust temperature of a smoke outlet is reduced, and the system performance is comprehensively improved.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the invention is not limited by the foregoing, but rather is within the scope of the invention as long as various modifications are made by the method concept and technical scheme of the invention, or the concept and technical scheme of the invention are directly applied to other occasions without modification.
Claims (6)
1. An aluminum product heating furnace preheating recovery system, its characterized in that: the aluminum product heating furnace preheating recovery system comprises a heating furnace body (1), wherein a flue gas discharge pipe (2) is arranged on the heating furnace body (1), a heat recovery pipe (3) is arranged on the flue gas discharge pipe (2), the heat recovery pipe (3) comprises a plurality of hollow stainless steel rectangular pipes (4), the hollow part of each stainless steel rectangular pipe (4) is a smoke exhaust pipe, the smoke exhaust pipe is communicated with the flue gas discharge pipe (2) and the outside, a cold air heating pipe (20) with a serpentine structure is arranged in the heat recovery pipe (3), a combustion-supporting fan (5) is arranged on one side surface of the heat recovery pipe (3), an air outlet pipe of the combustion-supporting fan is communicated with one end of the cold air heating pipe (20), the other end of the cold air heating pipe (20) is communicated with an air inlet of a burner, and the combustion-supporting fan (5) is connected with a control component (7) capable of controlling the start-stop and air quantity adjustment of the combustion-supporting fan (5);
an exchanger base (8) is arranged between a flue gas discharge pipe (2) and a heat recovery pipe (3) of the heating furnace body (1), an air valve shaft (9) is arranged on the exchanger base (8), the air valve shaft (9) is arranged to penetrate through a structure in a base pipeline (10) of the exchanger base (8), and the side surfaces of a plurality of stainless steel rectangular pipes (4) are welded and connected to form an integral heat recovery pipe (3);
the flue gas exhaust pipe cover (11) is further arranged in a base pipeline (10) of the exchanger base (8), the flue gas exhaust pipe cover (11) is positioned right above an exhaust pipe upper port (12) of the flue gas exhaust pipe (2), a movable rod piece (17) is fixedly connected to the air valve shaft (9), the movable rod piece (17) is movably connected with an exhaust cover seat (18) on the flue gas exhaust pipe cover (11) through a connecting shaft, an eccentric rod (19) is arranged outside the air valve shaft (9), an air cylinder (13) is connected with the eccentric rod (19), when the control part (7) controls the air cylinder (13) to stretch out and draw back, the air cylinder (13) is arranged to be capable of driving the air valve shaft (9) to rotate through the eccentric rod, and accordingly the flue gas exhaust pipe cover (11) is driven to move towards a direction close to or far away from the exhaust pipe upper port (12);
when the heating furnace heats the aluminum raw material, the flue gas of the heating furnace is discharged from the flue gas discharge pipe and then enters the heat recovery pipe, and as the heat recovery pipe consists of a plurality of stainless steel rectangular pipes, each stainless steel pipe respectively absorbs heat in the flue gas when the flue gas passes through the stainless steel pipes; the flue gas passing through the heat recovery pipe can realize cooling and then is discharged into the atmosphere;
when cold air of the combustion-supporting fan is conveyed through the air outlet pipe of the combustion-supporting fan, and passes through the cold air heating pipe of the heat recovery pipe, the cold air heating pipe is of a serpentine structure, so that the cold air is bent and arranged in the heat recovery pipe in a reciprocating manner, and cold air exchanges cold and heat with heat absorbed by the heat recovery pipe when passing through the cold air heating pipe.
2. An aluminum product heating furnace preheating recovery system as recited in claim 1, wherein: the cylinder (13) is connected with a control component (7) which can control the expansion and contraction of the cylinder (13).
3. An aluminum product heating furnace preheating recovery system as recited in claim 2, wherein: when the control part (7) controls the air cylinder (13) to extend, the air cylinder (13) is arranged to be capable of driving the flue gas discharge pipe cover (11) to move downwards and lean against the structure of the upper port (12) of the discharge pipe of the flue gas discharge pipe (2), and when the control part (7) controls the air cylinder (13) to shrink, the air cylinder (13) is arranged to be capable of driving the flue gas discharge pipe cover (11) to move upwards and leave the structure of the upper port (12) of the discharge pipe of the flue gas discharge pipe (2).
4. The aluminum material heating furnace preheating recovery system according to claim 1 or 2, characterized in that: the heat recovery pipe (3) is vertically arranged at the upper part of the exchanger base (8), an upper discharge pipe port (12) of the flue gas discharge pipe (2) is connected with the lower part of the exchanger base (8), and the side surfaces of each adjacent welded stainless steel rectangular pipe (4) are arranged to be in a structure of being attached together.
5. The aluminum material heating furnace preheating recovery system according to claim 1 or 2, characterized in that: the flue gas discharge pipe (2) is arranged in a vertical arrangement structure, the air pipe (6) of the burner is arranged in a horizontal arrangement structure, and the air outlet pipe (14) of the combustion-supporting fan is arranged horizontally.
6. The aluminum material heating furnace preheating recovery system according to claim 1 or 2, characterized in that: the aluminum product heating furnace preheat recovery system still include combustion-supporting fan mount pad (15), combustion-supporting fan mount pad (15) are installed in exchanger base (8) side, combustion-supporting fan (5) lower surface and combustion-supporting fan mount pad (15) upper surface connection sets up between exchanger base (8) and combustion-supporting fan mount pad (15) lower surface inclined support muscle (16) according to the clearance arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811811.8A CN108645231B (en) | 2018-07-23 | 2018-07-23 | Preheating recovery system of aluminum heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811811.8A CN108645231B (en) | 2018-07-23 | 2018-07-23 | Preheating recovery system of aluminum heating furnace |
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| Publication Number | Publication Date |
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| CN108645231A CN108645231A (en) | 2018-10-12 |
| CN108645231B true CN108645231B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810811811.8A Active CN108645231B (en) | 2018-07-23 | 2018-07-23 | Preheating recovery system of aluminum heating furnace |
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| CN209085338U (en) * | 2018-07-23 | 2019-07-09 | 芜湖精塑实业有限公司 | The pre- heat recovery system of aluminium heating furnace |
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2018
- 2018-07-23 CN CN201810811811.8A patent/CN108645231B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203534218U (en) * | 2013-08-02 | 2014-04-09 | 山东润源实业有限公司 | Recovery and utilization system for heat of flue gas discharged from normalizing treatment |
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| Publication number | Publication date |
|---|---|
| CN108645231A (en) | 2018-10-12 |
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