CN113566586B - Automatic slag removal device for smelting furnace - Google Patents
Automatic slag removal device for smelting furnace Download PDFInfo
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- CN113566586B CN113566586B CN202110859032.7A CN202110859032A CN113566586B CN 113566586 B CN113566586 B CN 113566586B CN 202110859032 A CN202110859032 A CN 202110859032A CN 113566586 B CN113566586 B CN 113566586B
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- stirring
- furnace
- slag removal
- stirring shaft
- side wall
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Classifications
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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
- F27D3/1554—Equipment for removing or retaining slag for removing the slag from the surface of the melt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to the field of metal smelting preparation, in particular to an automatic deslagging device of a smelting furnace, which comprises a liquid storage tank, a first discharging channel, a deslagging furnace, a stirring mechanism, a second discharging channel and a third discharging channel, wherein the stirring mechanism is arranged on the deslagging furnace and comprises a first stirring piece, a second stirring piece, a first bearing frame and a gearbox, the first stirring piece comprises a first stirring shaft and a first stirring blade, the second stirring piece comprises a second stirring shaft and a second stirring blade, the second stirring shaft is rotationally connected with the first bearing frame, a side wall opening is arranged at the upper part of the deslagging furnace, the feeding end of the third discharging channel is communicated with the bottom of the deslagging furnace, the feeding end of the second discharging channel is communicated with the upper part of the deslagging furnace through the side wall opening, the upper part of the second stirring blade is not lower than the lowest point of the side wall opening, and the lower part of the second stirring blade is not higher than the lowest point of the side wall opening along the vertical direction. Realize continuous automatic refining slagging-off, reduce intensity of labour, promote operating efficiency.
Description
Technical Field
The invention relates to the field of metal smelting preparation, in particular to the technical field of structures of automatic deslagging devices of smelting furnaces.
Background
In the process of smelting aluminum alloy, aluminum ingots and aluminum ores are melted into liquid at high temperature, and then the molten liquid is required to be refined, deaerated, decontaminated and deslagged.
At present, most deslagging operations are carried out through a single furnace for degassing, refining and deslagging operations, and finally, slag skimming operations are carried out manually, so that burning loss can be reduced, but the continuous aluminum alloy processing and high-yield operation efficiency are limited to a certain extent, and the single furnace is often required to carry out degassing, refining and deslagging operations, so that labor cost is increased.
Disclosure of Invention
The invention aims to provide an automatic slag removing device of a smelting furnace, which utilizes centrifugal blades to collect and discharge floating slag ash, can realize continuous automatic refining slag removal, does not need excessive human intervention, reduces labor intensity and improves working efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
The automatic slag removing device of the smelting furnace comprises a liquid storage tank, a first discharging channel, a slag removing furnace, a stirring mechanism, a second discharging channel and a third discharging channel, wherein the feeding end of the first discharging channel is communicated with the discharging end of the liquid storage tank, the discharging end of the first discharging channel is communicated with the feeding end of the slag removing furnace, the stirring mechanism is arranged on the slag removing furnace and comprises a first stirring piece, a second stirring piece, a first bearing frame and a gearbox, the first stirring piece comprises a first stirring shaft and a first stirring blade, the second stirring piece comprises a second stirring shaft and a second stirring blade, the second stirring shaft is rotatably connected with the first bearing frame, the second stirring blade is arranged on the outer side wall of the bottom of the second stirring shaft, the first stirring shaft penetrates through the second stirring shaft and is rotatably connected with the second stirring shaft, the first stirring shaft is coaxially arranged with the second stirring shaft, the first stirring blade is arranged on the bottom of the first stirring shaft, the gearbox is in transmission connection with the second stirring shaft, the second stirring blade is close to the inner wall of the slag removing furnace, the second stirring blade is arranged at the far end of the second stirring blade, the far end of the slag removing furnace is not communicated with the side wall of the slag removing furnace, the lowest side wall of the slag removing channel is arranged at the bottom of the slag removing channel, and is not communicated with the side wall of the bottom of the second stirring channel, and is vertically arranged at the lowest side wall of the bottom of the slag removing channel.
Further, a slope surface is arranged in one end of the second discharging channel close to the deslagging furnace, and the height of the slope surface is gradually increased along the direction away from the interior of the deslagging furnace.
Further, the second stirring vane comprises a centrifugal vane and a concave plate, a plurality of centrifugal vanes are symmetrically arranged on the outer side wall of the second stirring shaft, the concave plate is arranged on the upper portion of the centrifugal vane, and the concave surface of the concave plate is arranged along the rotation direction of the centrifugal vane.
Further, the upper portion of the concave plate is higher than the height of the slope surface.
Further, a combustion burner is arranged above the slope surface.
Further, a grid plate is arranged at the communication part of the third discharging channel and the deslagging furnace.
Compared with the prior art, the invention can at least achieve one of the following beneficial effects:
1. utilize centrifugal blade to collect the sediment ash that floats and discharge, and can realize continuous automatic refining slagging-off, need not too much human intervention, reduce intensity of labour, promote operating efficiency.
2. And the inclined surface is arranged, so that the loss of molten aluminum is reduced.
3. Set up the concave plate, promoted the slagging-off effect.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of another view of the present invention.
Fig. 3 is a schematic structural view of an embodiment of the second stirring element in the present invention.
FIG. 4 is a schematic view of a second stirring element and a side wall opening according to another view of the present invention.
The device comprises a 1-liquid storage tank, a 21-first discharging channel, a 22-second discharging channel, a 23-third discharging channel, a 3-deslagging furnace, a 31-side wall opening, a 32-grid plate, a 4-stirring mechanism, a 41-first stirring piece, a 411-first stirring shaft, a 412-first stirring blade, a 42-second stirring piece, a 421-second stirring shaft, a 422-second stirring blade, a 4221-centrifugal blade, a 43-first bearing frame, a 44-gearbox, a 4222-concave plate and a 100-aluminum solution.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
As shown in fig. 1-4, the automatic deslagging device of the smelting furnace comprises a liquid storage tank 1, a first discharging channel 21, a deslagging furnace 3, a stirring mechanism 4, a second discharging channel 22 and a third discharging channel 23; the feeding end of the first discharging channel 21 is communicated with the discharging end of the liquid storage tank 1, the discharging end of the first discharging channel 21 is communicated with the feeding end of the deslagging furnace 3, a stirring mechanism 4 is arranged on the deslagging furnace 3, the stirring mechanism 4 comprises a first stirring piece 41, a second stirring piece 42, a first bearing frame 43 and a gearbox 44, the first stirring piece 41 comprises a first stirring shaft 411 and a first stirring blade 412, the second stirring piece 42 comprises a second stirring shaft 421 and a second stirring blade 422, the second stirring shaft 421 is in rotary connection with the first bearing frame 43, the second stirring blade 422 is arranged on the outer side wall of the bottom of the second stirring shaft 421, the first stirring shaft 411 penetrates through the second stirring shaft 421 and is in rotary connection with the second stirring shaft, the first stirring shaft 411 and the second stirring shaft 421 are coaxially arranged, the bottom of the first stirring shaft 411 is provided with the gearbox 44, the gearbox 44 is in transmission connection with the second stirring shaft 421, the second stirring blade 422 is close to the inner wall of the deslagging furnace 3, the second stirring blade 422 is arranged at the far end near the deslagging end, the upper side wall of the deslagging furnace 3 is not communicated with the lowest side wall 31 in the direction of the upper opening of the deslagging channel 3, the upper side wall of the deslagging channel 3 is not communicated with the lower opening 31, and the lowest side wall 31 is communicated with the upper opening end of the upper side wall 31.
During operation, the liquid storage tank 1 is guaranteed to have proper liquid storage capacity, and is continuously fed into the deslagging furnace 3 through the first discharging channel 21, refining agent/deslagging agent is continuously added into the deslagging furnace 3, the driving motor drives the gearbox 44 to work, the gearbox 44 respectively drives the first stirring shaft 411 to rotate rapidly (through bevel gear transmission), the second stirring shaft 421 respectively rotates slowly (or differential rotation is realized through the arrangement of the two gearboxes respectively), the first stirring shaft 411 and the first stirring blade 412 rotate rapidly, the liquid in the deslagging furnace 3 is stirred rapidly, the refining/deslagging effect is improved, the formed slag ash floats to the surface of the aluminum liquid through buoyancy, the second stirring shaft 421 and the second stirring blade 422 rotate slowly, the scum on the surface of the aluminum liquid is beaten to the outer side (near the inner wall of the deslagging furnace 3), and as much as possible is beaten into the second discharging channel 22 through the side wall opening 31 through continuous poking of the second stirring blade 422, continuous deslagging operation is realized, and the preferred slag discharging can be ensured, the liquid level of the deslagging furnace 3 can be kept in a certain degree by the continuous slag discharging operation, the liquid level can not be regulated, the deslagging effect can be kept in the continuous slag discharging operation, and the deslagging furnace 3 can be adjusted in time, and the liquid level can be adjusted, and the continuous slag discharging effect can be controlled, and the liquid level can be adjusted, and the deslagging operation can be controlled, and the liquid in time, and the slag can be discharged in a certain amount, and the 3 can be discharged.
Preferably, the first stirring shaft 411 is a hollow rotating shaft, and is provided with a degassing channel (the degassing stirring shaft of the aluminum alloy melt is in the prior art and is not described herein in detail), so as to perform degassing treatment on the melt in the deslagging furnace 3, save the treatment procedure, and improve the operation efficiency.
Preferably, when the lower part of the second stirring blade 422 is not higher than the lowest point of the side wall opening 31, the bottom part of the second stirring blade 422 is immersed in the aluminum melt, and when the second stirring blade 422 rotates, the stirring and discharging effect of scum can be improved, but a protective film on the surface of the aluminum melt can be damaged, so that burning loss is increased, and in another embodiment, the lower part of the second stirring blade 422 is higher than the lowest point of the side wall opening 31, at the moment, the contact between the bottom part of the second stirring blade 422 and the surface of the aluminum melt can be reduced as much as possible, and scum (the height of the scum is higher than the height of the surface of the aluminum melt by a certain distance) can be contacted, so that the second stirring blade 422 reduces the damage to the protective film on the surface of the aluminum melt, but the skimming efficiency is reduced, and the scum can not be discharged timely and efficiently. Therefore, one of two modes can be selected as an embodiment of the present application according to the working efficiency and the subsequent aluminum ash treatment process.
Preferably, this patent application aims at solving the refining degasification deslagging operating efficiency problem of aluminum alloy melt in the continuous production process, consequently needs to guarantee to have sufficient material in the liquid storage pot 1, and to adopting stirring vane to carry out the problem of increasing of burn-out that slagging-off caused, can solve through setting up to carry out "aluminium ash processing" to the sediment ash after collecting and retrieve again.
Example 2:
as shown in fig. 1 to 4, the second tapping channel structure is optimized for the above embodiment.
In the automatic deslagging device for the smelting furnace, a slope surface 221 is arranged in one end of the second discharging channel 22, which is close to the deslagging furnace 3, and the height of the slope surface 221 is gradually increased along the direction away from the interior of the deslagging furnace 3. Through setting up slope surface 221, when the dross carried aluminium melt to get into slope surface 221, because the inclination of slope surface for aluminium melt can flow back to in the deslagging stove 3, reduce the consumption of taking off sediment in-process aluminium, practice thrift the cost greatly (in continuous operation in-process, the temperature of the inner wall of deslagging stove and lateral wall opening 31 department is all relatively higher, provides high temperature environment support for the backward flow of aluminium melt).
Example 3:
As shown in fig. 1-4, the present embodiment optimizes the second stirring vane structure for the above-described embodiments.
In the automatic slag removing device of the smelting furnace, the second stirring blade 422 comprises a centrifugal blade 4221 and a concave plate 4222, a plurality of centrifugal blades 4221 are symmetrically arranged on the outer side wall of the second stirring shaft 421, the concave plate 4222 is arranged on the upper part of the centrifugal blade 4221, and the concave surface of the concave plate 54 is arranged along the rotation direction of the centrifugal blade 4221. The centrifugal blades 4221 are beneficial to beating scum to the inner wall of the deslagging furnace 3 through centrifugal force generated by rotation, and the concave plates 4222 are arranged, so that the amount of scum collected by the second stirring blades 422 in the rotation process can be increased, excessive scum can be reduced, the scum is leaked from the top of the centrifugal blades 4221, and the slag skimming effect is improved.
Example 4:
As shown in fig. 1-4, the present embodiment optimizes the second stirring vane structure for the above-described embodiments.
The upper part of the concave plate 4222 in the automatic slag removing device of the smelting furnace is higher than the height of the slope surface 221. The height of the concave plate 4222 is higher than that of the slope surface 221, so that aluminum slag is extruded through the slope surface 221, and the discharging operation is completed.
Preferably, along the rotation direction of the second stirring shaft 421, the side wall opening 31 is obliquely arranged upwards, and the side wall opening 31 obliquely arranged can increase the contact time between the second stirring blade 422 and the side wall opening in the rotation process, namely, the aluminum slag quantity in the side wall opening 31 is lifted for one time, so that the slag removing efficiency is improved.
Example 5:
As shown in fig. 1 to 4, for the above embodiment, the present embodiment optimizes the molten aluminum recovery structure.
In the automatic deslagging device of the smelting furnace, a combustion flame nozzle 6 is arranged above the slope surface 221. The combustion burner 6 is connected with natural gas and performs blowing combustion above the vicinity of the slope surface 221, so that molten aluminum carried in aluminum slag can be heated, and the reflux recovery amount of the molten aluminum can be increased.
Example 6:
As shown in fig. 1-4, the present embodiment optimizes the filtering structure for the above-described embodiments.
In the automatic deslagging device of the smelting furnace, the grate plate 32 is arranged at the communication part of the third discharging channel 23 and the deslagging furnace 3. The arrangement of the grate plate 32 reduces the pressure of aluminum slag formed by rotational flow to enter the third discharging channel 23, thereby influencing the slag removal effect.
Preferably, the discharge amount of the deslagging furnace 3 can also be adjusted by setting the throughput of the grate plate 32.
Although the application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, drawings and claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859032.7A CN113566586B (en) | 2021-07-28 | 2021-07-28 | Automatic slag removal device for smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859032.7A CN113566586B (en) | 2021-07-28 | 2021-07-28 | Automatic slag removal device for smelting furnace |
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| CN113566586A CN113566586A (en) | 2021-10-29 |
| CN113566586B true CN113566586B (en) | 2025-03-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205803560U (en) * | 2016-06-07 | 2016-12-14 | 万泰和汽车材料（武汉）有限公司 | A kind of secondary aluminium stir-melting stove |
| CN112985080A (en) * | 2021-02-23 | 2021-06-18 | 常州机电职业技术学院 | Non-ferrous metal smelting waste residue discharge and collection device and collection method |
| CN215864665U (en) * | 2021-07-28 | 2022-02-18 | 河南恒通新材料有限公司 | Automatic slag removing device of smelting furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209493621U (en) * | 2018-11-08 | 2019-10-15 | 浙江新格有色金属有限公司 | The online depassing unit of aluminium alloy smelting process |
| CN209890701U (en) * | 2019-03-12 | 2020-01-03 | 郑州万和铝业有限公司 | A kind of aluminum slag recovery device |
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2021
- 2021-07-28 CN CN202110859032.7A patent/CN113566586B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205803560U (en) * | 2016-06-07 | 2016-12-14 | 万泰和汽车材料（武汉）有限公司 | A kind of secondary aluminium stir-melting stove |
| CN112985080A (en) * | 2021-02-23 | 2021-06-18 | 常州机电职业技术学院 | Non-ferrous metal smelting waste residue discharge and collection device and collection method |
| CN215864665U (en) * | 2021-07-28 | 2022-02-18 | 河南恒通新材料有限公司 | Automatic slag removing device of smelting furnace |
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Denomination of invention: Melting furnace automatic slag removal device Granted publication date: 20250325 Pledgee: Industrial and Commercial Bank of China Limited Gongyi Branch Pledgor: Henan Hengtong New Materials Co.,Ltd. Registration number: Y2025980033146 |