Submerged arc furnace with extended service life

Abstract

The present invention belongs to the technical field of electric arc furnaces, and in particular to an electric arc furnace with a prolonged service life, comprising a working box, the top of which is fixedly connected to two branch pipes, the two sides of the two branch pipes are respectively fixedly connected to a merging pipe, the two merging pipes are respectively fixedly connected to the two sides of a fixed block, the other side of the fixed block is fixedly connected to a main pipe, a regulating valve is installed in the middle of the top of the main pipe, the other end of the main pipe is fixedly connected to the top of an absorption device, the top of the fixed block is fixedly connected to two fixed plates, both of which are penetrated by sliding guide pillars, the other end of the sliding guide pillars is fixedly connected to a fixed handle, and in the present invention, under the overall matching use, the service life of the working box can be indirectly prolonged, and at the same time, the particles in the exhaust pipe can be relatively filtered, and the filter net can also be disassembled and installed.

Description

Technical Field

[0001] The invention belongs to the technical field of submerged arc furnaces, and in particular relates to a submerged arc furnace with a prolonged service life. Background Art

[0002] The ore-heat furnace is also called the electric arc furnace or the resistance furnace. It is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents and solvents. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy and other ferroalloys. It is an important industrial raw material in the metallurgical industry and chemical raw materials such as calcium carbide. The load of the transformer of the ore-heat furnace is continuous and stable, the impedance voltage is low, the number of voltage regulation stages is large, the step difference is small and the overload capacity is strong. It can be divided into two types: loaded and unexcited voltage regulation. Generally, the first few stages have constant capacity output and the last few stages have constant current output. At the same time, the ore-heat furnace is an industrial electric furnace with huge power consumption, which includes various electrical equipment such as water cooling system, smoke exhaust system, dust removal system, electrode shell, electrode pressing and lifting system, loading and unloading system, etc.

[0003] The existing circular ore-burning furnaces all have at most two iron eyes, which are used for alternate iron tapping in the ore-burning furnace. The number of iron eyes is mainly determined by the designed output of the ore-burning furnace, because the iron tapping operation cycle of the iron eyes is limited by the iron temperature and the performance of the refractory materials. Therefore, although the two iron eyes meet its production needs, its iron tapping output will be relatively reduced. At the same time, the iron eye is the only outlet for the finished molten iron of the ore-burning furnace and needs to be opened frequently. In addition, the high-temperature molten iron corrodes the iron eye, so the iron eye is the weakest link of the entire ore-burning furnace body. Therefore, the number of iron eyes will also affect the normal service life of the ore-burning furnace body. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a submerged arc furnace with a prolonged service life, which has the characteristics of prolonging the service life of a working box, being able to filter the working box, and facilitating replacement of a filter plate.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a submerged arc furnace with a prolonged service life, comprising a working box, the top of which is fixedly connected to two branch pipes, the two sides of the two branch pipes are respectively fixedly connected to a merging pipe, the two merging pipes are respectively fixedly connected to the two sides of a fixed block, the other side of the fixed block is fixedly connected to a main pipe, a regulating valve is installed at the middle of the top of the main pipe, the other end of the main pipe is fixedly connected to the top of an absorption device, the top of the fixed block is fixedly connected to two fixed plates, both of the two fixed plates are penetrated by sliding guide pillars, and the other end of the sliding guide pillar is fixedly connected to a fixed handle , and a limit spring is provided on the outer sleeve of the sliding guide column, and two ends of the limit spring are respectively fixedly connected to the fixed handle and the fixed plate, and the other end of the sliding guide column is inserted in the groove on the sliding plate, and the bottom end of the sliding plate is fixedly connected to the filter plate, and a plurality of filter meshes are arranged on the filter plate, and a sealing sleeve is provided on the top of the filter plate, and the bottom end of the filter plate is inserted in the slide groove at the top end of the inner wall of the fixed block, and two fixed grooves are respectively provided on both sides of the sliding plate, and the two fixed grooves are respectively slid with a fixer, and one end of the fixer is fixedly connected to the sliding spring, and the other end of the sliding spring is fixedly connected to the fixed groove;

[0006] A fixing sleeve is fixedly connected to the middle of the outer wall of the working box, five fixing legs are fixedly connected to the outer wall of the fixing sleeve, five iron eyes are fixedly provided at the bottom of the working box, and the output ends of the five iron eyes are fixedly connected to extension tubes, a motor is fixedly connected to the top of the working box, a rotating rod passing through the top of the working box is fixedly connected to the driving end of the motor, a plurality of stirring plates are fixedly connected to the rotating rod, a plurality of electrode rods are fixedly connected to the circumferential inner wall of the working box, and a loading port is provided at one end of the working box;

[0007] The fixing block is provided with a plurality of U-shaped grooves, and a plurality of fixers slide on the corresponding U-shaped grooves respectively.

[0008] As a preferred technical solution of the ore-fired furnace for extending the service life of the present invention, the plurality of electrode rods are arranged above the plurality of iron eyes.

[0009] As an optimal technical solution for extending the service life of an electric arc furnace according to the present invention, the five fixed legs are evenly distributed on the circumference, and the angles between adjacent fixed legs are the same; the five iron eyes are evenly distributed on the circumference, and the angles between adjacent iron eyes are the same; the five fixed legs and the five iron eyes are staggered respectively.

[0010] As a preferred technical solution of the submerged arc furnace for extending the service life of the present invention, the multiple electrode rods do not affect the stirring of the multiple stirring plates, and the multiple electrode rods do not affect the normal use of the loading port.

[0011] As a preferred technical solution of the submerged arc furnace for extending the service life of the present invention, the baffle on the feeding port and the outer wall of the working box are connected by a hinge.

[0012] Compared with the prior art, the beneficial effects of the present invention are: in the present invention, when used in combination as a whole, the service life of the working box can be indirectly extended, and at the same time, the particles in the exhaust pipe can be relatively filtered, and the filter net can be disassembled and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 A perspective view of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the regulating valve in the present invention;

[0016] Figure 3 It is a structural schematic diagram of the fixing block in the present invention;

[0017] Figure 4 is a cross-sectional view of the working box in the present invention;

[0018] Figure 5 is a cross-sectional view of the sliding plate of the present invention;

[0019] Figure 6 It is a structural schematic diagram of the filter plate in the present invention;

[0020] Figure 7 It is a structural schematic diagram of the sliding plate in the present invention;

[0021] In the figure: 1. fixed leg; 2. iron eye; 3. working box; 4. motor; 5. branch pipe; 6. sliding guide column; 7. sliding plate; 8. fixed plate; 9. limit spring; 10. fixed handle; 11. regulating valve; 12. main pipe; 13. fixed block; 14. absorption device; 15. confluence pipe; 16. extension pipe; 17. fixed sleeve; 18. rotating rod; 19. feeding port; 20. electrode rod; 21. stirring plate; 22. groove; 23. sealing sleeve; 24. filter plate; 25. filter mesh; 26. slide groove; 27. fixer; 28. fixed groove; 29. ​​sliding spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] See also Figure 1-Figure 7The present invention provides the following technical solutions: a submerged arc furnace with a prolonged service life, comprising a working box 3, the top of the working box 3 is fixedly connected with two branch pipes 5, the two sides of the two branch pipes 5 are respectively fixedly connected to the merging pipe 15, the two merging pipes 15 are respectively fixedly connected to the two sides of the fixed block 13, the other side of the fixed block 13 is fixedly connected with a main pipe 12, a regulating valve 11 is installed at the middle of the top of the main pipe 12, the other end of the main pipe 12 is fixedly connected to the top of the absorption device 14, the top of the fixed block 13 is fixedly connected with two fixed plates 8, the two fixed plates 8 are penetrated by the sliding guide column 6, the other end of the sliding guide column 6 is fixedly connected with a fixed handle 10, and the outer The part is sleeved with a limit spring 9, and the two ends of the limit spring 9 are respectively fixedly connected to the fixed handle 10 and the fixed plate 8. The other end of the sliding guide column 6 is inserted into the groove 22 on the sliding plate 7. The bottom end of the sliding plate 7 is fixedly connected with a filter plate 24, and a plurality of filter meshes 25 are arranged on the filter plate 24. A sealing sleeve 23 is sleeved above the filter plate 24. The bottom end of the filter plate 24 is inserted into the slide groove 26 at the top of the inner wall of the fixed block 13. Two fixed grooves 28 are respectively arranged on both sides of the sliding plate 7. Fixers 27 are respectively slid on the two fixed grooves 28. One end of the fixer 27 is fixedly connected to a sliding spring 29, and the other end of the sliding spring 29 is fixedly connected to the fixed groove 28. In the present embodiment, before the device is used normally, it is only necessary to slide the plurality of fixing handles 10 to the side away from the sliding plate 7, so that the limit spring 9 is gradually contracted, and the sliding guide post 6 is slid onto the fixing plate 8, and then the bottom end of the filter plate 24 is inserted into the hole on the fixing block 13, and then the filter plate 24 is pushed vertically downward until the bottom end of the filter plate 24 is inserted into the slide groove 26, at which time the plurality of fixing devices 27 enter the corresponding U-shaped grooves at the same time. In this process, since the operator continuously pushes the filter plate 24 toward the inside of the fixing block 13, when the fixing device 27 just begins to enter the U-shaped groove but has not yet completely entered the U-shaped groove, the filter plate 24 is pushed downward vertically until the bottom end of the filter plate 24 is inserted into the slide groove 26, and the plurality of fixing devices 27 enter the corresponding U-shaped grooves at the same time. At this time, multiple sliding springs 29 change from the original state to a gradually contracted state. At the same time, when multiple fixers 27 enter the U-shaped groove at the same time, multiple sliding springs 29 contract to a certain extent at the same time. At this time, the contracted force of multiple sliding springs 29 can respectively push the corresponding fixers 27 against the inside of the U-shaped groove. At the same time, the two fixed handles 10 are released, so that the multiple limit springs 9 are restored from the compressed state to the original state, so that the sliding guide column 6 is inserted into the groove 22 on the sliding plate 7, so that the sliding plate 7 can be fixed on the top of the fixed block 13, and the filter mesh 25 on the filter plate 24 can also filter impurities in the exhaust gas.

[0024] Specifically, a fixing sleeve 17 is fixedly connected to the middle of the outer wall of the working box 3, and five fixing legs 1 are fixedly connected to the outer wall of the fixing sleeve 17. Five iron eyes 2 are fixedly arranged at the bottom of the working box 3, and the output ends of the five iron eyes 2 are fixedly connected to extension tubes 16. The top of the working box 3 is fixedly connected to a motor 4, and the driving end of the motor 4 is fixedly connected to a rotating rod 18 that passes through the top of the working box 3. A plurality of stirring plates 21 are fixedly connected to the rotating rod 18, and a plurality of electrode rods 20 are fixedly connected to the circumferential inner wall of the working box 3. A loading port 19 is provided at one end of the working box 3. In this embodiment, since part of the mixture will drip onto the outer wall of the working box 3 during the unloading process of the plurality of iron eyes 2, thereby corroding the outer wall relatively, extension tubes 16 are respectively welded to the plurality of iron eyes 2, so that the mixture will flow along the iron eyes 2 to the inside of the extension tube 16, and then flow out to the outside of the extension tube 16, so that it will not drip onto the outside of the working box 3 and its service life can be extended.

[0025] Specifically, the plurality of electrode rods 20 are disposed above the plurality of iron eyes 2 . In this embodiment, this is conducive to fully blending the mixture and can also increase the service life of the iron eyes 2 .

[0026] Specifically, the five fixed legs 1 are evenly distributed on the circumference, and the angles between adjacent fixed legs 1 are the same, the five iron eyes 2 are evenly distributed on the circumference, and the angles between adjacent iron eyes 2 are the same, the five fixed legs 1 and the five iron eyes 2 are staggered respectively. In this embodiment, the five iron eyes 2 are beneficial to improving the service life of the electric arc furnace, and the five fixed legs 1 are staggered with the five iron eyes 2, so that it is convenient for the operator to take out the mixture.

[0027] Specifically, the plurality of electrode rods 20 do not affect the stirring of the plurality of stirring plates 21 , and the plurality of electrode rods 20 do not affect the normal use of the feeding port 19 . In this embodiment, therefore, the mixture to be stirred can be fully stirred.

[0028] Specifically, the baffle on the loading port 19 and the outer wall of the working box 3 are connected by hinges. In this embodiment, when loading materials, it is convenient for the operator to open and close the baffle.

[0029] Specifically, a plurality of U-shaped grooves are provided on the fixing block 13, and a plurality of fixers 27 slide on the corresponding U-shaped grooves respectively. In this embodiment, when the plurality of fixers 27 are fully inserted into the corresponding U-shaped grooves, the bottom end of the fixing plate 8 fits tightly with the top middle portion of the fixing block 13.

[0030] The working principle and use process of the present invention: a mineral heating furnace with extended service life in the present invention, before the device is used normally, it is only necessary to slide the multiple fixing handles 10 to the side away from the sliding plate 7 respectively, so that the limit spring 9 is gradually contracted, and the sliding guide column 6 is slid onto the fixing plate 8, and then the bottom end of the filter plate 24 is inserted into the hole on the fixing block 13, and then the filter plate 24 is pushed vertically downward until the bottom end of the filter plate 24 is inserted into the slide groove 26, at this time, multiple fixers 27 enter the corresponding U-shaped grooves at the same time. In this process, since the operator continuously pushes the filter plate 24 toward the inside of the fixing block 13, when the fixer 27 just starts to enter the U-shaped groove but has not yet completely entered the U-shaped groove, at this time, multiple sliding springs 29 change from the original state to a gradually contracted state, and at the same time, when the multiple fixers 27 enter the U-shaped groove at the same time, the multiple sliding springs 29 At the same time, they shrink to a certain extent. At this time, the contraction force of the multiple sliding springs 29 can respectively push the corresponding fixers 27 against the inside of the U-shaped groove, and at the same time, the two fixed handles 10 are loosened, so that the multiple limit springs 9 will be restored to the original state from the compressed state, so that the sliding guide column 6 will be inserted into the groove 22 on the sliding plate 7, so that the sliding plate 7 can be fixed on the top of the fixed block 13, and the filter mesh 25 on the filter plate 24 can also filter impurities in its exhaust gas. Due to the multiple iron eyes 2 in the process of feeding, part of the mixture will drip onto the outer wall of the working box 3, thereby corroding its outer wall relatively. Therefore, extension tubes 16 are respectively welded on the multiple iron eyes 2, so that the mixture will flow along the iron eyes 2 to the inside of the extension tube 16, and then flow out to the outside of the extension tube 16, so that it will not drip onto the outside of the working box 3 and can extend its service life.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submerged arc furnace with a prolonged service life, comprising a working box (3), Features: The top of the working box (3) is fixedly connected to two branch pipes (5), the two sides of the two branch pipes (5) are respectively fixedly connected to the merging pipe (15), the two merging pipes (15) are respectively fixedly connected to the two sides of the fixed block (13), the other side of the fixed block (13) is fixedly connected to the main pipe (12), a regulating valve (11) is installed in the middle of the top of the main pipe (12), the other end of the main pipe (12) is fixedly connected to the top of the absorption device (14), the top of the fixed block (13) is fixedly connected to two fixed plates (8), the two fixed plates (8) are penetrated by the sliding guide column (6), the other end of the sliding guide column (6) is fixedly connected to the fixed handle (10), and the outer sleeve of the sliding guide column (6) is provided with a limit spring (9), the limit spring (9) The two ends are respectively fixedly connected to the fixed handle (10) and the fixed plate (8); the other end of the sliding guide column (6) is inserted into the groove (22) on the sliding plate (7); the bottom end of the sliding plate (7) is fixedly connected to a filter plate (24); the filter plate (24) is provided with a plurality of filter meshes (25); and a sealing sleeve (23) is sleeved on the top of the filter plate (24); the bottom end of the filter plate (24) is inserted into the slide groove (26) at the top end of the inner wall of the fixed block (13); two fixed grooves (28) are respectively provided on both sides of the sliding plate (7); a fixer (27) is respectively slidably provided on the two fixed grooves (28); one end of the fixer (27) is fixedly connected to a sliding spring (29); and the other end of the sliding spring (29) is fixedly connected to the fixing groove (28); A fixing sleeve (17) is fixedly connected to the middle of the outer wall of the working box (3), and five fixing legs (1) are fixedly connected to the outer wall of the fixing sleeve (17). Five iron eyes (2) are fixedly provided at the bottom of the working box (3), and the output ends of the five iron eyes (2) are fixedly connected to extension tubes (16). A motor (4) is fixedly connected to the top of the working box (3), and a driving end of the motor (4) is fixedly connected to a rotating rod (18) that passes through the top of the working box (3), and a plurality of stirring plates (21) are fixedly connected to the rotating rod (18). A plurality of electrode rods (20) are fixedly connected to the circumferential inner wall of the working box (3), and a loading port (19) is provided at one end of the working box (3); The fixing block (13) is provided with a plurality of U-shaped grooves, and the plurality of fixers (27) slide on the corresponding U-shaped grooves respectively.

2. A submerged arc furnace with a prolonged service life according to claim 1, Features: The plurality of electrode rods (20) are all arranged above the plurality of iron eyes (2).

3. A submerged arc furnace with a prolonged service life according to claim 1, Features: The five fixed legs (1) are evenly distributed on the circumference, and the angles between adjacent fixed legs (1) are the same; the five iron eyes (2) are evenly distributed on the circumference, and the angles between adjacent iron eyes (2) are the same; the five fixed legs (1) and the five iron eyes (2) are staggered.

4. A submerged arc furnace with a prolonged service life according to claim 1, Features: The plurality of electrode rods (20) do not affect the stirring of the plurality of stirring plates (21), and the plurality of electrode rods (20) do not affect the normal use of the feeding port (19).

5. A submerged arc furnace with a prolonged service life according to claim 1, Features: The baffle plate on the loading port (19) and the outer wall of the working box (3) are connected via a hinge.

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