CN114838589A - Double-chamber double-melting furnace for aluminum scrap and aluminum ingot recycling materials in dispersive combustion - Google Patents
Double-chamber double-melting furnace for aluminum scrap and aluminum ingot recycling materials in dispersive combustion Download PDFInfo
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- CN114838589A CN114838589A CN202210553608.1A CN202210553608A CN114838589A CN 114838589 A CN114838589 A CN 114838589A CN 202210553608 A CN202210553608 A CN 202210553608A CN 114838589 A CN114838589 A CN 114838589A
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 187
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 187
- 238000002844 melting Methods 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 title claims description 47
- 238000004064 recycling Methods 0.000 title claims description 14
- 230000008018 melting Effects 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000004411 aluminium Substances 0.000 claims description 31
- 238000005338 heat storage Methods 0.000 claims description 29
- 239000002893 slag Substances 0.000 claims description 25
- 238000009825 accumulation Methods 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005058 metal casting Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 239000000446 fuel Substances 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- 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
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- 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
- F27D27/00—Stirring devices for molten material
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- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0812—Continuously charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0818—Discharging
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a double-chamber and melting furnace for aluminum scrap and aluminum ingot recycled materials, belonging to the field of metal casting, in particular to a dispersively-combusted double-chamber and melting furnace for aluminum scrap and aluminum ingot recycled materials, which comprises a furnace body shell, wherein a feeding mechanism is arranged on the side end surface of the furnace body shell, a tower-type melting furnace is arranged on the side end surface of the furnace body shell, a furnace door mechanism and a furnace cover are arranged at the top end of the tower-type melting furnace, a first burner nozzle is arranged on the tower-type melting furnace, a conveying port penetrates through the side end of the tower-type melting furnace and the side end of the furnace body shell, a tower furnace port is arranged on the tower-type melting furnace, a backflow stirring mechanism is arranged in the furnace body shell, the problem that the existing melting furnace can not realize the double melting of aluminum scrap and aluminum ingot aluminum block recycled materials is solved, in the working process of a single furnace chamber, a large amount of impurities generated by melting aluminum scrap can influence the quality of using aluminum liquid, and meanwhile, when the recycled materials are subjected to melting treatment, most of the raw materials are charged by a tower furnace, so that the raw materials are oxidized and burnt excessively.
Description
Technical Field
The invention relates to the field of metal casting, in particular to a diffuse combustion double-chamber and melting furnace for aluminum scrap and aluminum ingot recycled materials.
Background
At present, aluminum products enterprises such as aluminum alloy wheel hub all can produce a large amount of aluminium bits and regrind every day, and diversified raw and other materials are after multichannel process, and the workshop all can produce a large amount of raw and other materials classification and pile up every day, occupy a large amount of places and fund, consequently need combine to use the smelting pot to carry out melting treatment retrieval and utilization to aluminium bits and regrind.
The aluminum scrap and aluminum ingot aluminum block recycled material separately treated single furnace type is used in the aluminum casting industry at present, the aluminum scrap and aluminum ingot aluminum block recycled material can not be melted, the separately treated aluminum scrap and recycled material are respectively stored in a heat preservation furnace after being melted by each furnace body, heat loss is very large, in the working process of a single hearth, a large amount of impurities generated by melting the aluminum scrap influence the quality of the used aluminum liquid, meanwhile, when the recycled material is melted by conventional melting, the mode of feeding materials by a tower furnace is mostly adopted, so that the oxidation burning loss of raw materials with different shapes is overlarge, and therefore, a diffuse combustion aluminum scrap aluminum ingot recycled material double-chamber and melting furnace is required to be provided to meet the requirements of users.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the prior diffuse combustion aluminum scrap aluminum ingot recycling material double-chamber and melting furnace.
In order to solve the technical problems, according to one aspect of the invention, the furnace comprises a furnace body shell, a feeding mechanism is installed on a side end face of the furnace body shell, a tower type melting furnace is installed on the side end face of the furnace body shell, a first burner is installed on the tower type melting furnace, a backflow stirring mechanism is installed in the furnace body shell, a slag raking frame, a retaining frame and a partition wall are fixedly connected in the furnace body shell, the side end face of the slag raking frame is fixedly connected with the side end face of the partition wall, the other side end face of the partition wall is fixedly connected with the side end face of the retaining frame, a backflow channel is arranged on the partition wall in a penetrating mode, a small furnace mouth is arranged on the slag raking frame, a large furnace mouth is arranged on the retaining frame, and a high-level aluminum liquid emptying port is arranged on the furnace body shell.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the furnace door mechanism and the furnace cover are installed at the top end of the tower type melting furnace, the first smoke exhaust pipeline is installed on the end face of the top side of the tower type melting furnace, a conveying opening is formed in the tower type melting furnace, the conveying opening penetrates through the side end of the tower type melting furnace and the side end of a furnace body shell, and a tower portion furnace opening is formed in the tower type melting furnace.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the furnace body shell is provided with a second burner, the furnace body shell is provided with a connecting channel, the furnace body shell is connected with a combustion-supporting conveying cylinder through the connecting channel, the other end of the combustion-supporting conveying cylinder is arranged on a heat storage box body, a fiber roll blanket is arranged in the heat storage box body, a heat preservation layer is arranged on the fiber roll blanket, the furnace body shell is provided with a heat storage combustion pipeline and a second smoke exhaust pipeline, and the heat storage combustion pipeline is provided with a high-temperature four-way reversing valve.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: feed mechanism includes the mount, mount fixed connection is on the side end face of furnace body shell, welded fastening has servo motor on the mount, welded fastening has first gear on servo motor's the output shaft, the meshing is connected with first chain on the first gear, the other end meshing of first chain is connected with the second gear, the second gear rotates and connects on the mount, the meshing is connected with the second chain on the second gear, the other end meshing of second chain is connected with the third gear, the third gear rotates and connects on the mount, the one end of second chain is connected with the material loading dolly, the spacing sliding connection of material loading dolly is in the mount.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the second gear and the third gear are symmetrically distributed on two sides of the fixing frame, the central axis of the second gear and the central axis of the third gear are located on the same vertical central line, the fixing frame and the tower type melting furnace are distributed in parallel, and the height of the fixing frame is larger than that of the tower type melting furnace.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the backflow stirring mechanism comprises a backflow frame, the backflow frame is installed and fixed on the side end face of the furnace body shell, pump chamber shaping bricks are installed in the backflow frame, an aluminum liquid inlet and an aluminum liquid outlet are formed in the backflow frame in a penetrating mode, the aluminum liquid inlet is formed in the retaining frame in a penetrating mode, the aluminum liquid outlet is formed in the slag scraping frame in a penetrating mode, an aluminum scrap discharging vortex pool is arranged in the backflow frame, and a low-position aluminum liquid emptying port is installed on the backflow frame.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the bottom end face of the aluminum liquid inlet and the bottom end face of the aluminum liquid outlet are flush with the inner bottom end face of the furnace body shell, and the width of the inner space of the slag removing frame is smaller than that of the inner width space of the maintaining frame.
As a preferred scheme of the double-chamber double-melting furnace for dispersively burning aluminum scrap and aluminum ingot, the invention comprises the following steps: the second burner is arranged in the middle of the side end of the furnace body shell, the connecting channels are symmetrically distributed on two sides of the second burner, the connecting channels correspond to the heat storage box body one to one through combustion-supporting conveying cylinders, and the combustion-supporting conveying cylinders are connected to the middle of the top of the heat storage box body.
A diffuse combustion system of a diffuse combustion aluminum scrap aluminum ingot recycling material double-chamber melting furnace comprises a manual valve, an ignition fan and a combustion fan, wherein the output end of the manual valve is connected with the input end of a flowmeter, the output end of the flowmeter is connected with the input end of a pressure reducing valve, the output end of the pressure reducing valve is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of an electromagnetic valve, and the output end of the electromagnetic valve is connected with the input end of an aluminum scrap furnace burner; the output end of the ignition fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner; the output end of the combustion-supporting fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner.
Compared with the prior art, the invention has the beneficial effects that:
1. the aluminum scrap removing device is provided with the slag removing frame and the retaining frame, aluminum scraps and aluminum ingots can be subjected to centralized compatible treatment by utilizing the slag removing frame and the retaining frame, the production cost is reduced, land resources are saved, the heat efficiency in the furnace is improved, most impurities can be separated by utilizing the slag removing frame and the separating wall in the slag removing frame, the aluminum liquid in the retaining frame is used daily, and the discharging quality of the aluminum liquid is improved.
2. Be provided with backward flow rabbling mechanism, utilize the aluminium liquid import, the cooperation of aluminium bits unloading swirl pond and aluminium liquid export, can squeeze into aluminium bits unloading swirl pond with the aluminium liquid that the temperature is up to standard in the keep frame and produce the vortex, the swirl of production can be drawn into the aluminium bits in the bottom aluminium water, prevent that the aluminium bits from directly melting in the aluminium water outside, and carry out the scarfing cinder in taking off the sediment room, and take off the sediment room fire door and can add the less reuse materials such as aluminium block of part and carry out efficient soaking formula stirring melting, the great problem of the loss rate of aluminium bits melting in-process has effectively been avoided, the use variety of the smelting pot of holding concurrently has been increased simultaneously, be suitable for the reuse material of different grade type and equidimension not.
3. The heat storage circulation system is composed of the combustion-supporting conveying cylinder and the heat storage box body, the heat storage combustion pipeline and the high-temperature four-way reversing valve are combined to form the heat storage circulation system by means of cooperation of the combustion-supporting conveying cylinder and the heat storage box body, and therefore the heat energy utilization rate can be effectively improved, and energy waste is reduced.
4. The novel combustion mode in the double-chamber concurrent melting furnace adopts a main burner with an ignition burner and a pair of heat storage boxes, the flame is uniformly distributed and fully combusted in a hearth through simulating the angle and the flow of an outlet, the combustion-supporting temperature of flue gas after heat storage through a heat storage ball can reach 600-800 ℃, the unit energy consumption is low, the temperature of aluminum liquid is controlled accurately (+ -10 ℃), the heat storage and energy saving effects are realized (because the temperature of the flue gas after passing through the heat storage ball is reduced to below 150 ℃ (under special conditions of 70-80 ℃), the heat storage temperature is transferred to combustion-supporting cold air by the heat storage ball, the recovery of the waste heat of the flue gas can reach more than 90 percent, the combustion heat loss is greatly reduced, at least 25-30 percent of energy is saved for a general large heating furnace), the low-nitrogen environment is protected (due to the traditional energy-saving technology, the excessive high exhaust temperature causes secondary NOx generation, and the heat storage combustion technology is adopted, the preheating temperature of combustion air is up to 800 ℃, simultaneously, the exhaust gas temperature is greatly reduced, NOx is greatly reduced, the dispersion type combustion technology can ensure that the atmosphere in the furnace is in a relatively low oxygen state, when the oxygen content is insufficient, oxygen is consumed by combustible components in fuel, and the material condition of nitrogen and oxygen reaction is destroyed), and the dispersion type combustion technology has the characteristics of high efficiency, low loss (the material condition of low oxygen combustion which relatively destroys the oxidation reaction of aluminum is not existed, the dispersion type combustion technology has no local high temperature, the aluminum liquid in the hearth is uniformly heated, the contact area of furnace gas and the aluminum liquid is large, the heating efficiency is improved, and the quality of the aluminum liquid is ensured).
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic top view of an integral dual-chamber melting furnace for aluminum scrap and aluminum ingot recycling in accordance with the present invention;
FIG. 2 is a schematic view of the structure of the dispersively burning aluminum scrap and ingot recycle material double-chamber and melting furnace molten aluminum delivery port;
FIG. 3 is a schematic view of the side view of the dual-chamber melting furnace for aluminum scrap and aluminum ingot recycling in accordance with the present invention;
FIG. 4 is a schematic view of a fixing frame of a diffuse combustion aluminum scrap aluminum ingot recycling material dual-chamber and melting furnace structure of the present invention;
FIG. 5 is a schematic side view of a feeding trolley of a dispersively burning dual-chamber dual-melting furnace for aluminum scrap and aluminum ingot recycling;
FIG. 6 is a schematic view of the first exhaust duct structure of the dispersively combusted dual-chamber dual-furnace for aluminum scrap and aluminum ingot recycle of the present invention;
FIG. 7 is a schematic structural view of a dispersively burning double-chamber dual-furnace heat storage tank for aluminum scrap and aluminum ingot;
FIG. 8 is a schematic view of a diffuse combustion system of the present invention, which is a dual-chamber and melting furnace for recycling aluminum scrap and aluminum ingot.
The reference numbers in the figures: 1. a furnace body shell; 2. a feeding mechanism; 201. a fixed mount; 202. a servo motor; 203. a first gear; 204. a first chain; 205. a second gear; 206. a second chain; 207. a third gear; 208. a feeding trolley; 3. a tower melting furnace; 4. a furnace door mechanism; 5. a furnace cover; 6. a first burner; 7. a first exhaust pipe; 8. an aluminum liquid conveying port; 9. a tower furnace mouth; 10. slagging off the slag frame; 11. a holding frame; 12. a partition wall; 13. a return channel; 14. a small furnace mouth; 15. a large furnace mouth; 16. a reflux stirring mechanism; 1601. a reflow frame; 1602. a pump chamber shaping brick; 1603. an aluminum liquid inlet; 1604. aluminum scrap blanking swirl pool; 1605. an aluminum liquid outlet; 17. a low-level aluminum liquid emptying port; 18. a high-level aluminum liquid vent; 19. a second burner; 20. a connecting channel; 21. a combustion-supporting conveying cylinder; 22. a heat storage tank body; 23. a fiber roll blanket; 24. a heat-insulating layer; 25. a regenerative combustion line; 26. a high temperature four-way reversing valve; 27. and a second smoke exhaust pipeline.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Examples
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in figures 1-8, a diffuse combustion aluminum scrap aluminum ingot recycle material double-chamber and melting furnace comprises a furnace body shell 1, a feeding mechanism 2 is installed on the side end face of the furnace body shell 1, a tower type melting furnace 3 is installed on the side end face of the furnace body shell 1, a first burner 6 is installed on the tower type melting furnace 3, a backflow stirring mechanism 16 is installed in the furnace body shell 1, a slag raking frame 10, a holding frame 11 and a partition wall 12 are fixedly connected in the furnace body shell 1, the side end face of the slag raking frame 10 is fixedly connected with the side end face of the partition wall 12, the other side end face of the partition wall 12 is fixedly connected with the side end face of the holding frame 11, a backflow passage 13 is arranged on the partition wall 12 in a penetrating manner, a small furnace mouth 14 is arranged on the slag raking frame 10, a large furnace mouth 15 is arranged on the holding frame 11, a high-level aluminum liquid emptying port 18 is arranged on the furnace body shell 1, a furnace cover mechanism 4 and a furnace cover 5 are installed on the top end of the tower type melting furnace 3, the end face of the top side of the tower type melting furnace 3 is provided with a first smoke exhaust pipeline 7, the tower type melting furnace 3 is internally provided with a conveying port 8, the conveying port 8 penetrates through the side end of the tower type melting furnace 3 and the side end of the furnace body shell 1, the tower type melting furnace 3 is provided with a tower furnace port 9, a backflow stirring mechanism 16 is utilized to generate vortex flow for aluminum liquid, aluminum scraps are subjected to immersion type melting through the vortex flow and the aluminum liquid, the problem of high burning loss rate in the aluminum scrap melting process is effectively avoided, the use diversity of the melting furnace is increased, the furnace is suitable for recycling materials of different types and different sizes, meanwhile, the slag removing frame 10 and the retaining frame 11 are utilized to simultaneously perform centralized compatible treatment on the aluminum scraps and aluminum ingots, the production cost is reduced, land resources are saved, the heat efficiency in the furnace is improved, and most of impurities can be separated in the slag removing frame 10 by the slag removing frame 10 and the separating wall 12, the aluminum liquid in the frame 11 is maintained in daily use, and the discharging quality of the aluminum liquid is improved.
In this example, a second burner 19 is installed on a furnace body shell 1, a connecting channel 20 is opened on the furnace body shell 1, the furnace body shell 1 is connected with a combustion-supporting conveying cylinder 21 through the connecting channel 20, the other end of the combustion-supporting conveying cylinder 21 is installed on a heat accumulation box 22, a fiber rolling blanket 23 is arranged in the heat accumulation box 22, a heat preservation layer 24 is arranged on the fiber rolling blanket 23, a heat accumulation combustion pipeline 25 and a second smoke discharge pipeline 27 are installed on the furnace body shell 1, a high-temperature four-way reversing valve 26 is installed on the heat accumulation combustion pipeline 25, the second burner 19 is arranged in the middle of the side end of the furnace body shell 1, the connecting channels 20 are symmetrically distributed on two sides of the second burner 19, the connecting channels 20 correspond to the heat accumulation box 22 one by one through the combustion-supporting conveying cylinder 21, the combustion-supporting conveying cylinder 21 is connected in the middle of the top of the heat accumulation box 22, and the cooperation between the combustion-supporting conveying cylinder 21 and the heat accumulation box 22 is utilized, the heat storage circulating system can be formed by combining the heat storage combustion pipeline 25 and the high-temperature four-way reversing valve 26, so that the heat energy utilization rate can be effectively improved, and the energy waste is reduced.
In this example, the feeding mechanism 2 includes a fixing frame 201, the fixing frame 201 is fixedly connected to a side end face of the furnace body housing 1, a servo motor 202 is fixedly welded to the fixing frame 201, a first gear 203 is fixedly welded to an output shaft of the servo motor 202, a first chain 204 is connected to the first gear 203 in a meshing manner, a second gear 205 is connected to the other end of the first chain 204 in a meshing manner, the second gear 205 is rotatably connected to the fixing frame 201, a second chain 206 is connected to the second gear 205 in a meshing manner, a third gear 207 is connected to the other end of the second chain 206 in a meshing manner, the third gear 207 is rotatably connected to the fixing frame 201, one end of the second chain 206 is connected to a feeding trolley 208, the feeding trolley 208 is connected to the fixing frame 201 in a limiting and sliding manner, the second gear 205 and the third gear 207 are symmetrically distributed on two sides of the fixing frame 201, a central axis of the second gear 205 and a central axis of the third gear 207 are located on the same vertical central axis, be parallel distribution between mount 201 and the tower melting furnace 3, mount 201 highly is greater than tower melting furnace 3's height, utilizes highly higher mount 201 can guarantee the stability of material loading work, and then can guarantee that follow-up aluminium bits and regrind preheat the convenient and high-efficient of carrying the work.
In this example, backward flow rabbling mechanism 16 includes backward flow frame 1601, backward flow frame 1601 installs and fixes on the side end face of furnace body shell 1, install pump chamber shaping brick 1602 in backward flow frame 1601, backward flow frame 1601 is last to run through and has seted up aluminium liquid import 1603 and aluminium liquid export 1605, aluminium liquid import 1603 runs through and sets up on keeping frame 11, aluminium liquid export 1605 runs through and sets up on taking off slag frame 10, be provided with aluminium bits unloading swirl pond 1604 in backward flow frame 1601, install low-order aluminium liquid unloading mouth 17 on backward flow frame 1601, aluminium liquid import 1603's bottom face and aluminium liquid export 1605's bottom face all with furnace body shell 1's inside bottom face parallel and level, take off the inside width of slag frame 10 and be less than keeping frame 11's inside width space, utilize aluminium liquid import 1603 and aluminium liquid export 1605's cooperation, can guarantee aluminium liquid backward flow and vortex flow state's stability, the stability of using stability of smelting pot has been increased concurrently.
A diffuse combustion system of a diffuse combustion aluminum scrap aluminum ingot recycling material double-chamber melting furnace comprises a manual valve, an ignition fan and a combustion fan, wherein the output end of the manual valve is connected with the input end of a flowmeter, the output end of the flowmeter is connected with the input end of a pressure reducing valve, the output end of the pressure reducing valve is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of an electromagnetic valve, and the output end of the electromagnetic valve is connected with the input end of an aluminum scrap furnace burner; the output end of the ignition fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner; the output end of the combustion-supporting fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner.
It should be noted that, the present invention is a dispersively burning aluminum scrap and aluminum ingot recycling material double-chamber and melting furnace, firstly, a worker can use a large furnace mouth 15 to convey a large aluminum ingot or aluminum block into a holding frame 11 in a furnace body housing 1, then the worker can use the cooperation between combustion-supporting conveying cylinders 21 on two sides and a regenerative combustion pipeline 25 to stably heat and melt the aluminum ingot or aluminum block through a connecting channel 20 and a second burner 19, meanwhile, the combustion-supporting conveying cylinders 21 on two sides can combine with corresponding regenerative box bodies 22 to form a regenerative circulation system, which can effectively improve the heat energy utilization rate and reduce the energy waste, and in the working process of the holding frame 11, the worker can use an aluminum scrap blanking swirl pool 1604 to generate a swirl flow of aluminum liquid flowing into a backflow frame 1601, at this time, the aluminum liquid in a swirl flow state can suck the aluminum liquid in the holding frame 11 through an inlet aluminum liquid 1603, the aluminum liquid is discharged through an aluminum liquid outlet 1605 and enters the slagging-off frame 10, and then the aluminum liquid in the slagging-off frame 10 can return to the holding frame 11 through a return passage 13 on the partition wall 12 to complete the circulating return of the aluminum liquid;
then, a worker can open the servo motor 202 on the fixing frame 201 by controlling, at this time, the servo motor 202 can drive the second gear 205 to stably rotate by using the first chain 204 on the first gear 203, and under the rotation action of the second gear 205, the feeding trolley 208 can be driven to move upwards or downwards on the fixing frame 201 by using the cooperation of the second chain 206 and the third gear 207, so that the aluminum scraps or the small-sized recycled materials in the feeding trolley 208 can be conveyed into the tower-type melting furnace 3, then, the furnace cover 5 is closed by using the furnace door mechanism 4, at this time, the tower-type melting furnace 3 can preheat the aluminum scraps or the small-sized recycled materials by using the first burner 6, then, the aluminum scraps or the small-sized recycled materials can be conveyed into the slag skimming frame 10 through the conveying port 8, at this time, under the action of a vortex, the generated vortex can draw the aluminum scraps and the recycled materials into bottom aluminum water, the aluminum scraps and the recycled materials are prevented from being directly melted outside the molten aluminum, the burning loss rate of the aluminum scraps is reduced, the slag is removed in the slagging-off chamber, and part of the recycled materials such as smaller aluminum blocks and the like can be added into the furnace mouth of the slagging-off chamber to be efficiently soaked, stirred and melted, so that the problem of high burning loss rate in the aluminum scrap melting process is effectively avoided;
the regenerative burner adopted by the compatible smelting furnace adopts the latest technology in the fields of low nitrogen oxide emission and high-efficiency combustion, the high-efficiency combustion is realized by periodic alternate heat exchange of a pair of heat storage boxes, high-temperature flue gas in the furnace is used for heating heat accumulators (phi 25 heat accumulation balls) in the heat storage boxes in the forward direction, then cold air is heated to a certain temperature through the heat accumulators in the reverse direction, high-temperature combustion-supporting air is obtained, and finally the cold air enters the furnace and is subjected to combustion reaction with natural gas which is premixed and ignited by a main burner, and the main performance parameters of a combustion system are as follows; the design of the commutation period of 10-120S can be freely set; preheating air at 600-800 deg.c with thermocouple and display; the highest allowable flue gas emission temperature is 250 ℃; the emission temperature of the normal working flue gas is 100-200 ℃; the heat storage medium is phi 25mm high alumina balls (92 percent); every heat accumulation case heat accumulation medium loading is 1000KG, and whole set of combustion control system still will include: a reversing valve for reversing control and a pneumatic actuating device thereof; high-efficiency premixing ignition gun; the ultraviolet flame monitor is used for monitoring flame safety, and an ignition gun detects one monitoring point and one monitoring point on the left and right of a main burner respectively; a gas flow control valve group; a combustion air flow control valve block; the PLC control cabinet with the human-computer interface is provided, is specially suitable for the requirement of combustion control of the aluminum melting furnace, and can provide accurate and reliable furnace gas temperature control, burner reversing control, furnace pressure control and other functions of measurement, display, alarm and the like; in the actual combustion process, the main flame has two working conditions: the maximum capacity is about 240 cubic meters per hour in the big fire state, and the capacity is about 125 cubic meters per hour in the small fire state. The big and small fire control is controlled by two groups of natural gas electromagnetic valves, the natural gas electromagnetic valves are opened and closed when the small fire is in a working condition, the natural gas electromagnetic valves are opened simultaneously when the big fire is in a working condition, the two electromagnetic valves are all closed, the main flame stops burning, the ignition nozzle is a long open fire, and the burning safety in the furnace is ensured; and meanwhile, a temperature measuring thermocouple is arranged at the outlet of each heat storage bed of the combustion system to detect the temperature of the discharged flue gas, the measured temperature is sent to the PLC system and displayed on an operation screen, and when the temperature of the discharged flue gas exceeds 200 ℃, the system is switched forcibly. The top of the hearth is provided with furnace gas temperature detection, the measured temperature is sent to a PLC system and displayed on an operation screen, and when the measured temperature exceeds a set temperature, the system is switched forcibly; the provided burner ignition system and the main burner system are respectively provided with an independent flame monitoring system to ensure the combustion safety, the flame is monitored uninterruptedly in the whole combustion process to ensure that the ignition flame is always in a combustion state, and if an ignition gun or a main flame is extinguished during the operation, the controller closes all electromagnetic valves and gives an alarm to display to ensure the combustion safety; simultaneously, before the burner is started and ignited every time, a combustion fan and a smoke exhaust fan are automatically opened to the maximum position to forcibly purge and displace the atmosphere in the furnace, the total displacement is 3 times of the total volume in the furnace, when combustion is started, safe ignition can be carried out in the furnace in a complete safe state, when a worker presses an ignition preparation button, an ignition preparation red light starts to flicker, an automatic ignition program can judge whether each relevant parameter of the system meets the minimum ignition requirement or not, and simultaneously purging work in a hearth is carried out, if the requirement is met, the ignition preparation red light is turned on for a long time, the operator presses an ignition start button to ignite the burner, if the requirement is not met, the system gives an alarm, the alarm content is displayed, the ignition preparation red light is turned off, and after the operator finds out the reason of equipment failure, the ignition preparation operation is carried out again.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A diffuse combustion aluminum scrap aluminum ingot recycling material double-chamber and melting furnace comprises a furnace body shell (1) and is characterized in that the furnace body shell is provided with a furnace body; a feeding mechanism (2) is arranged on the side end surface of the furnace body shell (1), a tower type melting furnace (3) is arranged on the side end surface of the furnace body shell (1), a first burner (6) is arranged on the tower-type melting furnace (3), a reflux stirring mechanism (16) is arranged in the furnace body shell (1), a slag removing frame (10), a holding frame (11) and a separation wall (12) are fixedly connected in the furnace body shell (1), the side end surface of the slag raking frame (10) is fixedly connected with the side end surface of the isolation wall (12), the other end face of the partition wall (12) is fixedly connected with the side end face of the holding frame (11), a backflow channel (13) is arranged on the separation wall (12) in a penetrating way, a small furnace mouth (14) is arranged on the slag raking frame (10), the holding frame (11) is provided with a large furnace mouth (15), and the furnace body shell (1) is provided with a high-level aluminum liquid emptying port (18).
2. The dispersively combusted double-chamber melting furnace for aluminum scrap and aluminum ingots as claimed in claim 1, wherein: the furnace door mechanism (4) and the furnace cover (5) are installed on the top end of the tower type melting furnace (3), a first smoke exhaust pipeline (7) is installed on the end face of the top side of the tower type melting furnace (3), a conveying opening (8) is formed in the tower type melting furnace (3), the conveying opening (8) penetrates through the side end of the tower type melting furnace (3) and the side end of the furnace body shell (1), and a tower portion furnace opening (9) is formed in the tower type melting furnace (3).
3. The dispersively-combusted double-chamber and melting furnace for aluminum scrap and aluminum ingots according to claim 1, wherein: install second nozzle (19) on furnace body shell (1), connect channel (20) have been seted up on furnace body shell (1), furnace body shell (1) is connected with combustion-supporting feed cylinder (21) through connect channel (20), the other end of combustion-supporting feed cylinder (21) is installed on heat accumulation box (22), it rolls blanket (23) to be provided with the fibre in heat accumulation box (22), the fibre is rolled up and is provided with heat preservation (24) on blanket (23), install heat accumulation burning pipeline (25) and second exhaust pipe (27) on furnace body shell (1), install high temperature cross-way switching-over valve (26) on heat accumulation burning pipeline (25).
4. The dispersively-combusted double-chamber and melting furnace for aluminum scrap and aluminum ingots according to claim 1, wherein: the feeding mechanism (2) comprises a fixing frame (201), the fixing frame (201) is fixedly connected to the side end face of the furnace body shell (1), a servo motor (202) is fixedly welded on the fixing frame (201), a first gear (203) is fixedly welded on an output shaft of the servo motor (202), a first chain (204) is connected to the first gear (203) in a meshed mode, a second gear (205) is connected to the other end of the first chain (204) in a meshed mode, the second gear (205) is rotatably connected to the fixing frame (201), a second chain (206) is connected to the second gear (205) in a meshed mode, a third gear (207) is connected to the other end of the second chain (206) in a meshed mode, the third gear (207) is rotatably connected to the fixing frame (201), and one end of the second chain (206) is connected with a feeding trolley (208), the feeding trolley (208) is in limited sliding connection in the fixed frame (201).
5. The double-chamber and melting furnace for dispersively burning aluminum scraps and aluminum ingots according to claim 4, wherein: the second gear (205) and the third gear (207) are symmetrically distributed on two sides of the fixed frame (201), the central axis of the second gear (205) and the central axis of the third gear (207) are located on the same vertical central line, the fixed frame (201) and the tower type melting furnace (3) are distributed in parallel, and the height of the fixed frame (201) is greater than that of the tower type melting furnace (3).
6. The dispersively-combusted double-chamber and melting furnace for aluminum scrap and aluminum ingots according to claim 1, wherein: backflow stirring mechanism (16) are including backward flow frame (1601), backward flow frame (1601) installation is fixed on the side end face of furnace body shell (1), install pump chamber shaping brick (1602) in backward flow frame (1601), it has seted up aluminium liquid import (1603) and aluminium liquid export (1605) to run through on backward flow frame (1601), aluminium liquid import (1603) runs through and sets up on keeping frame (11), aluminium liquid export (1605) run through and set up on taking off slag frame (10), be provided with aluminium bits unloading swirl pond (1604) in backward flow frame (1601), install low-order aluminium liquid unloading mouth (17) on backward flow frame (1601).
7. The double-chamber and melting furnace for dispersively burning aluminum scraps and aluminum ingots according to claim 6, wherein: the bottom end face of the aluminum liquid inlet (1603) and the bottom end face of the aluminum liquid outlet (1605) are flush with the inner bottom end face of the furnace body shell (1), and the width of the inner space of the slag removing frame (10) is smaller than that of the inner width space of the maintaining frame (11).
8. The dispersively combusted dual-chamber dual-melting furnace for aluminum scrap and aluminum ingot recycle according to claim 3, wherein: the second burner (19) is arranged in the middle of the side end of the furnace body shell (1), the connecting channels (20) are symmetrically distributed on two sides of the second burner (19), the connecting channels (20) are in one-to-one correspondence with the heat storage box bodies (22) through combustion-supporting conveying cylinders (21), and the combustion-supporting conveying cylinders (21) are connected to the middle of the top of the heat storage box bodies (22).
9. The diffuse combustion system of the double-chamber and melting furnace for the dispersively combusted aluminum scrap and aluminum ingot recycling material according to claim 1, wherein: the ignition device comprises a manual valve, an ignition fan and a combustion-supporting fan, wherein the output end of the manual valve is connected with the input end of a flowmeter, the output end of the flowmeter is connected with the input end of a pressure reducing valve, the output end of the pressure reducing valve is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of an electromagnetic valve, and the output end of the electromagnetic valve is connected with the input end of an aluminum scrap furnace burner; the output end of the ignition fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner; the output end of the combustion-supporting fan is connected with the input end of a pressure gauge, the output end of the pressure gauge is connected with the input end of a pressure switch, the output end of the pressure switch is connected with the input end of a manual valve, and the output end of the manual valve is connected with the input end of an aluminum scrap furnace burner.
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| CN201917210U (en) * | 2010-12-15 | 2011-08-03 | 上海埃鲁秘工业炉制造有限公司 | Fuel gas-oil-electricity mixed type aluminum alloy melting and heat insulation furnace |
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Denomination of invention: A Double Chamber Furnace with Dispersive Combustion for Reusable Aluminum Scrap and Ingot Granted publication date: 20230825 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Wucheng branch Pledgor: ZHEJIANG JINFEI KAIDA WHEEL Co.,Ltd. Registration number: Y2024980002000 |
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