CN110926218A - Device and method for reducing electrode consumption - Google Patents
Device and method for reducing electrode consumption Download PDFInfo
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- CN110926218A CN110926218A CN201911029725.2A CN201911029725A CN110926218A CN 110926218 A CN110926218 A CN 110926218A CN 201911029725 A CN201911029725 A CN 201911029725A CN 110926218 A CN110926218 A CN 110926218A
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- electrode
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- storage tank
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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
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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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
- F27D9/00—Cooling of furnaces or of charges therein
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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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
- F27D2009/0016—Water-spray
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A device and a method for reducing electrode consumption belong to the technical field of steel refining. The device includes the nozzle, sprays frame, water pipe, valve, liquid storage tank, sedimentation filtering ponds, pump circulating device and waste residue processing apparatus, the frame that sprays divides two rows of interval arrangement, the nozzle interval arrangement is spraying frame axial direction, the liquid storage tank bottom is equipped with the through-hole, locates the frame below that sprays, the liquid storage tank below is located to the sedimentation filtering ponds, the sedimentation filtering ponds top is equipped with the through-hole corresponding with the liquid storage tank bottom, the sedimentation filtering ponds below is located to waste residue processing apparatus, pump circulating device passes through the water piping connection with the frame that sprays and sedimentation filtering ponds respectively, the valve is located on the water pipe of connecting pump circulating device and spray frame. The invention can reduce the surface temperature of the red electrode in a short time, has stable electrode performance, can reduce the electrode consumption by 0.05-0.15kg/t, and can reduce the direct discharge pollution of spray water and the production cost for the recycling of spray cooling water.
Description
Technical Field
The invention belongs to the technical field of steel refining, and particularly relates to a device and a method for reducing electrode consumption.
Background
The LF refining furnace electrode belongs to a steelmaking raw and auxiliary material, is mainly used for refining and heating molten steel, and is an important smelting material. The automatic spray cooling of LF refining furnace electrode all has very big improvement than manual cooling, natural cooling in the aspect of practicality, operability etc. and the quick cooling process of red electrode such as mainly used refining smelting end, refining electrode circular telegram end, wait that the composition meets the requirements can reduce the electrode temperature, eliminates spontaneous combustion loss of burning. The LF refining electrode is applied to automatic cooling, so that a large amount of electrode can be saved, and obvious economic benefits and social benefits are achieved. However, in the prior art, the automatic spraying device has poor automatic spraying effect due to the conditions of simple and crude structure, unreasonable arrangement, improper spraying method selection and the like, the purpose of reducing the consumption of the electrode cannot be achieved, and even equipment can be damaged.
Disclosure of Invention
The technical problem to be solved is as follows: aiming at the technical problems, the invention provides a device and a method for reducing electrode consumption, which can effectively reduce the electrode consumption by 0.05-0.15kg/t compared with the existing spraying method, thereby obtaining good cost control.
The technical scheme is as follows: the utility model provides a reduce device that electrode consumed, the device includes the nozzle, sprays frame, water pipe, valve, liquid storage tank, sedimentation filtering ponds, pump cycle device and waste residue processing apparatus, the frame that sprays divides two rows of interval arrangements, the nozzle interval arrangement is in spraying frame axial direction, the liquid storage tank bottom is equipped with the through-hole, locates the frame below that sprays, the liquid storage tank below is located to the sedimentation filtering ponds, the sedimentation filtering ponds top is equipped with the through-hole corresponding with the liquid storage tank bottom, waste residue processing apparatus locates the sedimentation filtering ponds below, pump cycle device passes through the water piping connection with the frame that sprays and sedimentation filtering ponds respectively, the valve is located on the water pipe of connecting pump cycle device and spray frame.
Preferably, the device further comprises a remote control device, and the remote control device is connected with the valve through a water pipe.
Preferably, the diameter of the water pipe is 40-80 mm.
Preferably, the spray headers have at least 8 nozzles per frame.
Preferably, the spray racks are single-row with at least 5 racks.
A method of reducing electrode consumption based on the apparatus of any one of the preceding claims, the method comprising the steps of: a. rotating the electrode which is powered off after the electrification is finished to the spraying frame, opening a valve, and starting spraying and cooling; b. the electrode rotates and descends
Spraying water mist 1-2m through a nozzle, controlling the cooling time to be 1-5min, and controlling the surface temperature of the cooled electrode to be 30-50 ℃; c. after cooling, the electrode is rotated to the ready position.
Preferably, in the method, the water flow rate of spray cooling is controlled to be 50-200 NL/min, and the hydraulic pressure is controlled to be 1.5-4 bar.
Preferably, the water mist sprayed by the nozzle is in a fan shape, and the opening angle of the fan shape is not less than 60 degrees.
Has the advantages that: according to the invention, the automatic spray cooling of the electrode of the LF refining furnace is designed, the surface temperature of the red electrode can be reduced in a short time through the automatic cooling treatment of the on-line electrode, the intensity deterioration of the electrode structure can not be caused, the resistance intensity is not obviously changed after spray cooling, the electrode consumption can be reduced by 0.05-0.15kg/t, and the test proves that the electrode performance of the electrode is stable after the automatic spray cooling of the electrode of the LF refining furnace is carried out through the automatic spray cooling treatment of the electrode. Meanwhile, the invention recycles the spray cooling water, thereby not only reducing the direct discharge pollution of the spray water, but also obtaining good production cost control.
Drawings
FIG. 1 is an apparatus for reducing electrode consumption;
the numerical designations in the drawings indicate the following: 1. an electrode; 2. a nozzle; 3. a spray rack; 4. a water pipe; 5. a valve; 6. a remote control device; 7. a liquid storage tank; 8. a sedimentation and filtration tank; 9. a pump circulation device; 10. a waste residue treatment device.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the specific contents of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the device for reducing electrode consumption comprises a nozzle 2, a spray rack 3, a water pipe 4, a valve 5, a remote control device 6, a liquid storage tank 7, a sedimentation filter tank 8, a pump circulation device 9 and a waste residue treatment device 10. The spray racks 3 are arranged in two rows with 5 racks at intervals, the nozzles 2 are arranged in the axial direction of the spray racks 3 at intervals, and each spray rack 3 is provided with 8 nozzles 2. The bottom of the liquid storage tank 7 is provided with a through hole which is arranged below the spray frame 3; the sedimentation and filtration tank 8 is arranged below the liquid storage tank 7, and the top of the sedimentation and filtration tank is provided with a through hole corresponding to the bottom of the liquid storage tank 7; the waste residue treatment device 10 is arranged below the sedimentation and filtration tank 8; the pump circulating device 9 is respectively connected with the spray frame 3 and the sedimentation filter tank 8 through a water pipe 4; the valve 5 is arranged on the water pipe 4 connecting the pump circulating device 9 and the spray frame 3; the remote control device 6 is connected with the valve 5 through a water pipe 4; the diameter of the water pipe 4 is 40 mm.
After the electrode 1 is electrified, the electric brake is separated and powered off; the electrode 1 is rotated to the spraying frame 3, the valve 5 is opened through the remote control device 6 for spraying and cooling, the nozzle 2 sprays water mist, the water mist is fan-shaped, the opening angle of the fan-shaped is not less than 60 degrees, the water flow of spraying and cooling is controlled to be 200 NL/min, and the water pressure is controlled to be 4 bar. The electrode 1 is controlled to rotate and descend for 1 m to pass through the spraying frame 3 by the remote control device 6 during cooling, the cooling time is controlled to be 5min, and the surface temperature of the electrode 1 is controlled to be 30-50 ℃ after cooling. After cooling, the electrode 1 is rotated to the ready position.
The automatic spraying cooling water falls into a liquid storage tank 7, flows into a precipitation filtering tank 8 through a through hole at the bottom of the liquid storage tank 7, is subjected to precipitation filtering, and filtered water enters a pump circulating device 9 through a water pipe 4 and finally circulates back to the water pipe 4 through a valve 5; the filter residue is treated by the waste residue treatment device 10 in a unified way.
Example 2
The utility model provides a reduce device of electrode consumption, includes nozzle 2, sprays frame 3, water pipe 4, valve 5, liquid storage tank 7, sediment filtering ponds 8, pump cycle device 9 and waste residue processing apparatus 10. The spray racks 3 are arranged in two rows with 6 racks at intervals, the nozzles 2 are arranged in the axial direction of the spray racks 3 at intervals, and each spray rack 3 is provided with 10 nozzles 2. The bottom of the liquid storage tank 7 is provided with a through hole which is arranged below the spray frame 3; the sedimentation and filtration tank 8 is arranged below the liquid storage tank 7, and the top of the sedimentation and filtration tank is provided with a through hole corresponding to the bottom of the liquid storage tank 7; the waste residue treatment device 10 is arranged below the sedimentation and filtration tank 8; the pump circulating device 9 is respectively connected with the spray frame 3 and the sedimentation filter tank 8 through a water pipe 4; the valve 5 is arranged on the water pipe 4 connecting the pump circulating device 9 and the spray frame 3; the diameter of the water pipe 4 is 80 mm.
After the electrode 1 is electrified, the electric brake is separated and powered off; rotating the electrode 1 to a spraying frame 3, opening a valve 5 for spraying and cooling, spraying water mist from a nozzle 2, wherein the water mist is fan-shaped, the opening angle of the fan-shaped is not less than 60 degrees, controlling the water flow of spraying and cooling to be 100 NL/min, and controlling the water pressure to be 1.5 bar. The electrode 1 is controlled to rotate and descend for 2m to pass through the spraying frame 3 by the remote control device 6 during cooling, the cooling time is controlled to be 3 min, and the surface temperature of the electrode 1 is controlled to be 30-50 ℃ after cooling. After cooling, the electrode 1 is rotated to the ready position.
The automatic spraying cooling water falls into a liquid storage tank 7, flows into a precipitation filtering tank 8 through a through hole at the bottom of the liquid storage tank 7, is subjected to precipitation filtering, and filtered water enters a pump circulating device 9 through a water pipe 4 and finally circulates back to the water pipe 4 through a valve 5; the filter residue is treated by the waste residue treatment device 10 in a unified way.
Example 3
A device for reducing electrode consumption comprises a nozzle 2, a spray frame 3, a water pipe 4, a valve 5, a remote control device 6, a liquid storage tank 7, a sedimentation filter tank 8, a pump circulating device 9 and a waste residue treatment device 10. The spray racks 3 are arranged in two rows with 5 racks at intervals, the nozzles 2 are arranged in the axial direction of the spray racks 3 at intervals, and each spray rack 3 is provided with 8 nozzles 2. The bottom of the liquid storage tank 7 is provided with a through hole which is arranged below the spray frame 3; the sedimentation and filtration tank 8 is arranged below the liquid storage tank 7, and the top of the sedimentation and filtration tank is provided with a through hole corresponding to the bottom of the liquid storage tank 7; the waste residue treatment device 10 is arranged below the sedimentation and filtration tank 8; the pump circulating device 9 is respectively connected with the spray frame 3 and the sedimentation filter tank 8 through a water pipe 4; the valve 5 is arranged on the water pipe 4 connecting the pump circulating device 9 and the spray frame 3; the remote control device 6 is connected with the valve 5 through a water pipe 4; the diameter of the water pipe 4 is 60 mm.
After the electrode 1 is electrified, the electric brake is separated and powered off; the electrode 1 is rotated to the spraying frame 3, the valve 5 is opened through the remote control device 6 for spraying and cooling, the nozzle 2 sprays water mist, the water mist is fan-shaped, the opening angle of the fan-shaped is not less than 60 degrees, the water flow of spraying and cooling is controlled to be 50 NL/min, and the water pressure is controlled to be 1.5 bar. The electrode 1 is controlled to rotate and descend for 2m to pass through the spraying frame 3 by the remote control device 6 during cooling, the cooling time is controlled to be 5min, and the surface temperature of the electrode 1 is controlled to be 30-50 ℃ after cooling. After cooling, the electrode 1 is rotated to the ready position.
The automatic spraying cooling water falls into a liquid storage tank 7, flows into a precipitation filtering tank 8 through a through hole at the bottom of the liquid storage tank 7, is subjected to precipitation filtering, and filtered water enters a pump circulating device 9 through a water pipe 4 and finally circulates back to the water pipe 4 through a valve 5; the filter residue is treated by the waste residue treatment device 10 in a unified way.
In the embodiment, the surface temperature of the red electrode can be reduced in a short time by carrying out automatic cooling treatment on the on-line electrode, the resistance strength is not obviously changed after spraying and cooling, the electrode performance is stable, the electrode consumption can be reduced by 0.05-0.15kg/t, and meanwhile, the spraying and cooling water is recycled, so that the direct-discharge pollution of the spraying water is reduced, and good production cost control is obtained.
The above examples are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The device for reducing the electrode consumption is characterized by comprising nozzles (2), a spraying frame (3), water pipes (4), valves (5), a liquid storage tank (7), a sedimentation filter tank (8), a pump circulating device (9) and a waste residue treatment device (10), wherein the spraying frame (3) is divided into two rows of rows which are arranged at intervals, the nozzles (2) are arranged at intervals in the axial direction of the spraying frame (3), through holes are formed in the bottom of the liquid storage tank (7) and are arranged below the spraying frame (3), the sedimentation filter tank (8) is arranged below the liquid storage tank (7), through holes corresponding to the bottom of the liquid storage tank (7) are formed in the top of the sedimentation filter tank (8), the waste residue treatment device (10) is arranged below the sedimentation filter tank (8), and the pump circulating device (9) is respectively connected with the spraying frame (3) and the sedimentation filter tank (8) through the water pipes (4), the valve (5) is arranged on a water pipe (4) which is connected with the pump circulating device (9) and the spray frame (3).
2. A device for reducing electrode consumption according to claim 1, characterized in that the device further comprises a remote control device (6), the remote control device (6) being connected to the valve (5) via a water pipe (4).
3. A device for reducing electrode consumption according to claim 1, characterized in that the diameter of the water tube (4) is 40-80 mm.
4. A device for reducing electrode consumption according to claim 1, characterized in that the spray racks (3) have at least 8 nozzles (2) per one rack.
5. A device for reducing electrode consumption according to claim 1, characterized in that the spray racks (3) are single-row at least 5 racks.
6. A method for reducing electrode consumption based on the device of any one of claims 1 to 5, wherein the method comprises the steps of: a. rotating the electrode (1) which is powered off after the electrification is finished to the position of the spraying frame (3), opening the valve (5) and starting spraying cooling; b. rotating the electrode (1), descending 1-2m, spraying water mist through the nozzle (2), controlling the cooling time to be 1-5min, and controlling the surface temperature of the cooled electrode (1) to be 30-50 ℃; c. after cooling, the electrode (1) is rotated to a ready position.
7. A method for reducing electrode consumption according to claim 6, wherein the water flow rate of spray cooling is controlled to 50-200 NL/min and the water pressure is controlled to 1.5-4 bar.
8. A method for reducing electrode consumption according to claim 6, characterized in that the spray of the nozzles (2) is fan-shaped, the opening angle of the fan being not less than 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029725.2A CN110926218A (en) | 2019-10-28 | 2019-10-28 | Device and method for reducing electrode consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029725.2A CN110926218A (en) | 2019-10-28 | 2019-10-28 | Device and method for reducing electrode consumption |
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| CN110926218A true CN110926218A (en) | 2020-03-27 |
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| CN201911029725.2A Pending CN110926218A (en) | 2019-10-28 | 2019-10-28 | Device and method for reducing electrode consumption |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096455Y (en) * | 2007-06-18 | 2008-08-06 | 宝山钢铁股份有限公司 | Electric stove electrode cooling apparatus |
| CN202182645U (en) * | 2011-06-29 | 2012-04-04 | 鞍钢股份有限公司 | Aerosol cooling device for reducing electrode consumption of low frequency (LF) furnace |
| CN202931594U (en) * | 2012-11-30 | 2013-05-08 | 益阳金沙重型机械制造有限公司 | Arc furnace electrode cooling device |
| CN105338678A (en) * | 2015-12-09 | 2016-02-17 | 攀枝花市朵实机械制造有限公司 | Electric-arc furnace electrode clamping device |
| CN207692086U (en) * | 2017-12-16 | 2018-08-03 | 芜湖新兴铸管有限责任公司 | Converter graphite electrode cooling device |
| CN207933191U (en) * | 2018-02-02 | 2018-10-02 | 东海新材料有限公司 | A kind of continuous annealing battery steel hardening filter device |
-
2019
- 2019-10-28 CN CN201911029725.2A patent/CN110926218A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096455Y (en) * | 2007-06-18 | 2008-08-06 | 宝山钢铁股份有限公司 | Electric stove electrode cooling apparatus |
| CN202182645U (en) * | 2011-06-29 | 2012-04-04 | 鞍钢股份有限公司 | Aerosol cooling device for reducing electrode consumption of low frequency (LF) furnace |
| CN202931594U (en) * | 2012-11-30 | 2013-05-08 | 益阳金沙重型机械制造有限公司 | Arc furnace electrode cooling device |
| CN105338678A (en) * | 2015-12-09 | 2016-02-17 | 攀枝花市朵实机械制造有限公司 | Electric-arc furnace electrode clamping device |
| CN207692086U (en) * | 2017-12-16 | 2018-08-03 | 芜湖新兴铸管有限责任公司 | Converter graphite electrode cooling device |
| CN207933191U (en) * | 2018-02-02 | 2018-10-02 | 东海新材料有限公司 | A kind of continuous annealing battery steel hardening filter device |
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Application publication date: 20200327 |