Direct-current submerged arc furnace convenient for removing slag

Abstract

The utility model discloses a direct current submerged arc furnace convenient to remove slag, and particularly relates to the technical field of slag cleaning, the direct current submerged arc furnace comprises a base, the left side of the middle of the upper end of the base is fixedly connected with a furnace body, the right side of the upper end of the base is fixedly connected with an integrated cover lifting mechanism, and the front side and the rear side of the outer surface of the furnace body are fixedly connected with electric telescopic rods; the upper ends of the electric telescopic rods are jointly and fixedly connected with a spraying mechanism, the lower end of the spraying mechanism is fixedly connected with a slag removing mechanism, and the left side of the upper end of the base is fixedly connected with a telescopic mechanism. According to the direct current submerged arc furnace capable of conveniently removing the slag, the slag attached to the furnace wall can be punched and loosened in front of the slag removing mechanism through the arranged injection mechanism, and then the slag which is washed and loosened on the inner wall of the submerged arc furnace is knocked off through the slag removing mechanism, so that the slag removing mechanism cannot damage the furnace wall in the slag removing process; and stubborn slag can be thoroughly removed, so that the reaction efficiency and the product quality in the submerged arc furnace are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag cleaning, in particular to a direct current ore-fired furnace which is convenient for cleaning slag. Background Art

[0002] A DC ore-arc furnace is an ore-arc furnace that uses a DC power supply. It is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents and solvents. It is an important production equipment in the metallurgical industry. The DC ore-arc furnace converts AC power into DC power through a rectifier circuit, and uses the high temperature of the DC arc to melt ores and metals. The DC ore-arc furnace is mainly composed of a furnace body, electrodes, a furnace mouth, a furnace cover, a molten pool, and other parts. In the process of smelting ferroalloys, some slag waste will be generated. If it is not removed in time, it will occupy the space in the furnace and affect the smelting efficiency. Therefore, a DC ore-arc furnace that is convenient for removing slag is needed.

[0003] Chinese patent publication number CN212902715U discloses a waste slag cleaning device for an ore-fired furnace, comprising a fixed base, a boiler body, a discharge trough, a waste slag feed port, a rotating screw, a rotating baffle and a driven bevel gear, wherein the upper end of the fixed base is fixedly connected to a boiler body, and a discharge trough is provided in the fixed base and directly below the boiler body. The beneficial effects achieved by the above patent document are: rapid cleaning of slag is achieved, and oxygen is continuously provided to the ore-fired furnace by adding a blower, so that solid ore in the ore-fired furnace can be fully burned, which not only reduces the generation of slag, but also reduces the emission of harmful gases. At the same time, the automatic cleaning of slag by the rotating screw effectively avoids the need to manually take out the slag when cleaning the ore-fired furnace, and the trouble of inconvenient cleaning due to the small space at the bottom of the ore-fired furnace is improved. Work efficiency is improved.

[0004] However, the above patent documents still have the following defects in the implementation process:

[0005] Although the equipment in the above patent document can remove slag, some slag will be generated on the surface of the furnace wall during the smelting process of the electric arc furnace during use. The above equipment cannot clean the slag attached to the inner wall of the electric arc furnace, which may cause too much slag to adhere to the furnace wall, affecting the heat transfer and the heating uniformity of the furnace wall, thereby affecting the reaction efficiency and product quality in the electric arc furnace. In addition, the slag tightly attached to the furnace wall cannot be cleaned away with a high-pressure water gun during the slag cleaning process, so that the stubborn slag cannot be completely removed, thereby affecting the reaction efficiency and product quality in the electric arc furnace. Utility Model Content

[0006] The main purpose of the utility model is to provide a direct current ore-fired furnace which is convenient for removing slag, and can effectively solve the problem that the furnace wall cannot be cleaned.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A direct current ore-arcing furnace for convenient slag removal comprises a base, a furnace body is fixedly connected to the left middle part of the upper end of the base, an integrated lid-lifting mechanism is fixedly connected to the right upper end of the base, two material holes are provided on one side of the outer surface of the furnace body, electric telescopic rods are fixedly connected to the front and rear sides of the outer surface of the furnace body, an injection mechanism is fixedly connected to the upper ends of the two electric telescopic rods, a slag removal mechanism is fixedly connected to the lower end of the injection mechanism, and a telescopic mechanism is fixedly connected to the left upper end of the base.

[0009] Preferably, the telescopic mechanism includes a support seat, which is fixedly connected to the left side of the upper end of the base, and the upper end of the support seat is slidably connected to two telescopic rods, the outer surfaces of the two telescopic rods are slidably connected to a fixed block, and the right end of the fixed block is slidably connected to a telescopic plate.

[0010] Preferably, the spray mechanism includes a support plate and a hose, the support plate is fixedly connected to the upper ends of the two electric telescopic rods, the front side of the middle part of the upper end of the support plate is fixedly connected to a water tank, the middle part of the lower end of the support plate is fixedly connected to a support column, the lower end of the support column is fixedly connected to a rotating mechanism, the lower end of the rotating mechanism is rotatably connected to a disc, the middle part of the upper end of the disc is fixedly connected to an annular tube, a plurality of high-pressure guns are fixedly connected to an annular array on one side of the outer surface of the annular tube away from the axis of the disc, the lower end of the hose is fixedly connected to the upper side of the annular tube, the upper end of the hose passes through a lower end of the support plate and the lower end of the water tank and is communicated with the inner cavity of the water tank.

[0011] Preferably, the rotating mechanism includes slide rail 1, which is fixedly connected to the lower end of the support column, and the lower end of the slide rail is slidably connected to slide rail 2, the inner surface of slide rail 1 is fixedly connected to a motor, the inner surface of slide rail 2 is fixedly connected to a support disk, and the output end of the motor is fixedly connected to the middle of the upper end of the support disk through a coupling.

[0012] Preferably, the slag cleaning mechanism includes a second support plate, the second support plate is fixedly connected to the middle part of the lower end of the disc, the lower end of the second support plate is fixedly connected to a circular plate, the middle part of the upper end of the circular plate is fixedly connected to a driving mechanism, a plurality of long holes are opened in a circular array on the side of the upper end of the circular plate away from its axis, and a plurality of slag knocking mechanisms are fixedly connected to the upper end of the circular plate in a circular array.

[0013] Preferably, the driving mechanism includes a hydraulic cylinder and a four-way pipe, the hydraulic cylinder is fixedly connected to the middle part of the lower end of the second support plate, the four-way pipe is fixedly connected to the middle part of the upper end of the circular plate, the upper end of the four-way pipe is fixedly connected to the second circular tube, the inner cavity of the second circular tube is slidably connected to the first piston disk, the end of the four-way pipe away from the axis of the second circular tube is fixedly connected to the first circular tube, the inner cavities of several of the first circular tubes are slidably connected to the second piston disk, the ends of several of the second piston disks away from the same side of the four-way pipes are fixedly connected to the round rod, and the output end of the hydraulic cylinder is fixedly connected to the upper end of the first piston disk.

[0014] Preferably, the slag knocking mechanism includes a slide groove, a rotating column and two supporting blocks, the slide groove is opened on the side of the upper end of the circular plate away from its axis, the bottom wall of the inner cavity of the slide groove is slidably connected with a rack, the rotating column is rotatably connected to the middle part of the inner cavity of the long hole, a plurality of springs are fixed in an annular array on the outer surface of the rotating column, and a plurality of springs are fixedly connected to a ball at one end away from the rotating column, the two supporting blocks are fixedly connected to the side of the upper end of the circular plate away from its axis, a gear is rotatably connected between the opposite surfaces of the two supporting blocks, rotating rollers are fixedly connected on both sides of the outer surface of the gear, and the ends of the rotating rollers away from the gears penetrate the outer surface of the support block on the same side, extend to the outside and are fixedly connected to one end of the rotating column on the same side.

[0015] Preferably, the ends of the plurality of round rods away from the four-way pipe are fixedly connected to the ends of the racks on the same side close to the axis of the circular plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] During use, the utility model can first perform high-pressure flushing through the provided injection mechanism and slag cleaning mechanism, and then clean the slag attached to the inner wall of the electric arc furnace by knocking, which will not cause excessive slag to adhere to the furnace wall, thereby improving heat transfer and heating uniformity of the furnace wall, thereby improving the reaction efficiency and product quality in the electric arc furnace.

[0018] During use, the utility model can, through the arranged injection mechanism, first press and loosen the slag attached to the furnace wall before the slag cleaning mechanism, and then the slag cleaning mechanism flushes and knocks off the loosened slag on the inner wall of the electric arc furnace, so that the slag cleaning mechanism will not cause damage to the furnace wall during the slag cleaning process, so that the stubborn slag can be completely removed, effectively improving the reaction efficiency and product quality in the electric arc furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model from another perspective;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the telescopic mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the injection mechanism of the utility model;

[0023] Figure 5 For the utility model Figure 3 A schematic diagram of the enlarged view in the middle;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the slag cleaning mechanism of the utility model;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the driving mechanism of the utility model;

[0026] Figure 8 For the utility model Figure 5 Schematic diagram of the enlarged view at B in the middle;

[0027] Fig. 9 It is a schematic diagram of the overall structure of the utility model from another perspective.

[0028] In the figure: 1. base; 2. furnace body; 3. integrated cover mechanism; 4. electric telescopic rod; 5. injection mechanism; 51. support plate 1; 52. water tank; 53. support column; 54. rotation mechanism; 541. slide rail 1; 542. slide rail 2; 543. motor; 544. support plate; 55. disc; 56. annular tube; 57. hose; 58. high pressure gun; 6. slag cleaning mechanism; 61. round plate; 62. support plate 2; 63. long hole; 64. slag knocking mechanism ; 641, slide groove; 642, rack; 643, gear; 644, support block; 645, rotating column; 646, spring; 647, ball; 65, driving mechanism; 651, hydraulic cylinder; 652, four-way pipe; 653, piston disc one; 654, round tube one; 655, piston disc two; 656, round tube two; 657, round rod; 7, telescopic mechanism; 71, support seat; 72, telescopic rod one; 73, fixed block; 74, telescopic plate; 8, material hole. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figure 1As shown, a DC ore-fired furnace for convenient slag removal comprises a base 1, a furnace body 2 is fixedly connected to the left middle part of the upper end of the base 1, an integrated lid lifting mechanism 3 is fixedly connected to the right upper end of the base 1, two material holes 8 are provided on one side of the outer surface of the furnace body 2, electric telescopic rods 4 are fixedly connected to the front and rear sides of the outer surface of the furnace body 2, an injection mechanism 5 is fixedly connected to the upper ends of the two electric telescopic rods 4, a slag removal mechanism 6 is fixedly connected to the lower end of the injection mechanism 5, and a telescopic mechanism 7 is fixedly connected to the left upper end of the base 1.

[0031] The above-mentioned integrated cover lifting mechanism 3 is a conventional design in the prior art, and its specific structure is composed of a hydraulic cylinder and a plurality of connecting rods. The hydraulic cylinder drives the connecting rod to contract, so that the connecting rod fixed on the furnace cover drives the furnace cover to lift to the upper right. Its specific size, shape and operating principle only need to meet the requirements of this solution to lift the cover plate at the upper end of the furnace body 2 to the upper right, and the utility model will not be elaborated in detail.

[0032] In the specific implementation process of the utility model, first, when smelting is required, the iron alloy is put into the inner cavity of the furnace body 2 through a material hole 8 at the top, and then the electrode column is extended into the inner cavity of the furnace body 2 through the two holes of the upper end cover plate of the furnace body 2 through the telescopic mechanism 7 to smelt the iron alloy. When the smelting is completed, the electrode column is removed from the inside of the furnace body 2 through the telescopic mechanism 7, and then a material hole 8 at the bottom is opened to discharge the smelted liquid;

[0033] After the furnace body 2 is naturally cooled, the cover plate above the furnace body 2 is lifted to the upper right by the action of the integrated lid-lifting mechanism 3, and then the injection mechanism 5 and the slag-cleaning mechanism 6 are driven to drop downward by the electric telescopic rod 4. When the injection mechanism 5 and the slag-cleaning mechanism 6 enter the furnace body 2, the driving structure inside the injection mechanism 5 and the slag-cleaning mechanism 6 is started, and the slag attached to the inner wall of the furnace body 2 can be broken and dropped by the action of the slag-cleaning mechanism 6, and then some slag with tighter adhesion can be cleaned away by high pressure under the action of the injection mechanism 5. At the same time, the injection mechanism 5 can drive the slag-cleaning mechanism 6 and the injection mechanism 5 to rotate, spray and knock, so that the inner wall of the furnace body 2 can be cleaned more evenly, and then the slag that has been subjected to high pressure and knocking will be discharged from the material hole 8 on the lower side along with the water flow.

[0034] The electric telescopic rod 4 is a conventional design in the prior art. Its specific structure, size, shape and operating principle only need to be able to drive the spray mechanism 5 to move up and down in this solution, and the utility model will not elaborate on it in detail.

[0035] Specifically, in order to achieve the purpose of melting the ferroalloy inside the furnace body 2, refer to Figure 2In this solution, the telescopic mechanism 7 includes a support seat 71, which is fixedly connected to the left side of the upper end of the base 1. The upper end of the support seat 71 is slidably connected to two telescopic rods 72. The outer surfaces of the two telescopic rods 72 are slidably connected to a fixed block 73. The right end of the fixed block 73 is slidably connected to a telescopic plate 74.

[0036] In the above, when the fixed block 73 is lifted to a certain height by the telescopic rod 72, the telescopic plate 74 is extended to the right from the inside of the fixed block 73, and then the electrode column at the lower end of the telescopic plate 74 is driven by the telescopic rod 72 to extend into the furnace body 2 to melt the ferroalloy. After smelting, the electrode column is driven back to the initial position by the telescopic plate 74 and the telescopic rod 72, and will not block the injection mechanism 5 from falling.

[0037] The specific installation method of the telescopic rod 72 and the fixed block 73 used in the above, the circuit connection method and the control method are all conventional designs. During the implementation process, it is only necessary to be able to drive the electrode column to extend and retract, and the utility model will not elaborate on them in detail.

[0038] Specifically, in order to achieve the purpose of cleaning the inner wall of the furnace body 2 by high pressure washing, refer to Figure 3 and Figure 4 In this scheme, the spray mechanism 5 includes a support plate 51 and a hose 57. The support plate 51 is fixedly connected to the upper ends of the two electric telescopic rods 4. The front side of the middle part of the upper end of the support plate 51 is fixedly connected to a water tank 52. The middle part of the lower end of the support plate 51 is fixedly connected to a support column 53. The lower end of the support column 53 is fixedly connected to a rotating mechanism 54. The lower end of the rotating mechanism 54 is rotatably connected to a disc 55. The middle part of the upper end of the disc 55 is fixedly connected to an annular tube 56. A plurality of high-pressure guns 58 are fixedly connected to an annular array on one side of the outer surface of the annular tube 56 away from the axis of the disc 55. The lower end of the hose 57 is fixedly connected to the upper side of the annular tube 56. The upper end of the hose 57 passes through the lower end of the support plate 51 and the lower end of the water tank 52 and is connected to the inner cavity of the water tank 52.

[0039] Furthermore, the rotating mechanism 54 includes a slide rail 541, which is fixedly connected to the lower end of the support column 53, and the lower end of the slide rail 541 is slidably connected to the slide rail 542, the inner surface of the slide rail 541 is fixedly connected to the motor 543, the inner surface of the slide rail 542 is fixedly connected to the support plate 544, and the output end of the motor 543 is fixedly connected to the middle of the upper end of the support plate 544 through a coupling.

[0040] In the above, firstly, a water pump needs to be installed in the inner cavity of the water tank 52, and the output end of the water pump is fixedly connected to the input end of the hose 57, and then the inner cavity of the water tank 52 is filled with water.

[0041] In the above, the water tank 52 is driven down by the electric telescopic rod 4, and then the water pump is started, so that water enters the inner cavity of the ring tube 56 through the hose 57, and then flushes the inner wall of the furnace body 2 through the high-pressure gun 58, and at the same time, the motor 543 is started, and the support plate 544 is driven to rotate by the motor 543, so that the support plate 544 drives the slide rail 2 542 to rotate, and then drives the disc 55 to rotate to achieve the purpose of rotation flushing;

[0042] To further explain, the motor 543 can only drive the disk 55 to rotate left and right by 180 degrees.

[0043] Specifically, in order to achieve the purpose of cleaning the slag attached to the inner wall of the furnace body 2 by knocking, refer to Figure 5 , Figure 6 and Figure 7 In this solution, the slag cleaning mechanism 6 includes a second support plate 62, which is fixedly connected to the middle part of the lower end of the disc 55, a circular plate 61 is fixedly connected to the lower end of the support plate 62, a driving mechanism 65 is fixedly connected to the middle part of the upper end of the circular plate 61, a plurality of long holes 63 are opened in a circular array on one side of the upper end of the circular plate 61 away from its axis, and a plurality of slag knocking mechanisms 64 are fixedly connected in a circular array to the upper end of the circular plate 61.

[0044] The second support plate 62 is fixedly connected to the lower end of the disc 55, so that the disc 61 is driven to rotate while the disc 61 falls;

[0045] Furthermore, the driving mechanism 65 includes a hydraulic cylinder 651 and a four-way pipe 652. The hydraulic cylinder 651 is fixedly connected to the middle part of the lower end of the support plate 62, the four-way pipe 652 is fixedly connected to the middle part of the upper end of the circular plate 61, the upper end of the four-way pipe 652 is fixedly connected to the circular pipe 656, the inner cavity of the circular pipe 656 is slidably connected to the piston disk 1 653, the end of the four-way pipe 652 away from the axis of the circular pipe 656 is fixedly connected to the circular pipe 1 654, the inner cavities of several circular pipes 1 654 are slidably connected to the piston disk 2 655, the ends of several piston disks 2 655 away from the four-way pipe 652 on the same side are fixedly connected to the round rod 657, and the output end of the hydraulic cylinder 651 is fixedly connected to the upper end of the piston disk 1 653.

[0046] Furthermore, the slag knocking mechanism 64 includes a slide groove 641, a rotating column 645 and two support blocks 644. The slide groove 641 is opened on the side of the upper end of the circular plate 61 away from its axis. The bottom wall of the inner cavity of the slide groove 641 is slidably connected with a rack 642. The rotating column 645 is rotatably connected to the middle part of the inner cavity of the long hole 63. A plurality of springs 646 are fixed in an annular array on the outer surface of the rotating column 645. One end of the plurality of springs 646 away from the rotating column 645 is fixedly connected with a ball 647. The two support blocks 644 are fixedly connected to the side of the upper end of the circular plate 61 away from its axis. A gear 643 is rotatably connected between the opposite surfaces of the two support blocks 644. Rotating rollers are fixedly connected on both sides of the outer surface of the gear 643. One end of the rotating roller away from the gear 643 passes through the outer surface of the support block 644 on the same side, extends to the outside and is fixedly connected to one end of the rotating column 645 on the same side.

[0047] Furthermore, one end of the plurality of round rods 657 away from the cross-tube 652 is fixedly connected to one end of the rack 642 on the same side close to the axis of the circular plate 61 .

[0048] In the above, it is first necessary to inject hydraulic oil into the inner cavity of the four-way tube 652, and then start the hydraulic cylinder 651 to drive the piston plate 1 653 to press downward, so that the hydraulic oil passes through the inner cavity of the round tube 1 654 and simultaneously pushes several piston plates 2 655 to extend outward, and then the rack 642 is pushed to slide in the inner cavity of the slide groove 641 through the round rod 657, and then the rack 642 is meshed with the surface of the gear 643, thereby driving the rotating column 645 to rotate, and then under the action of the spring 646, the ball 647 is driven to be thrown toward the inner wall of the furnace body 2, and then the slag attached to the inner wall of the furnace body 2 is knocked, and then the piston plate 1 653 is driven up and down by the hydraulic cylinder 651 to move, so that the hydraulic oil in the inner cavity of the four-way tube 652 drives the round rod 657 to repeatedly expand and contract, thereby repeatedly driving the rotating column 645 to rotate through the gear 643 and the rack 642, so that the ball 647 can be thrown toward the inner wall of the furnace body 2 at a higher frequency.

[0049] The slag knocking mechanism 64 mentioned above can be increased or decreased according to the specific situation.

[0050] It should be noted that the specific installation method of the hydraulic cylinder 651, the connection method of the oil circuit and the control method used in the present invention are all conventional designs, and the present invention will not elaborate on them in detail.

[0051] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A DC ore-fired furnace for convenient slag removal, comprising a base (1), characterized in that: A furnace body (2) is fixedly connected to the left side of the middle upper end of the base (1); an integrated lid lifting mechanism (3) is fixedly connected to the right side of the upper end of the base (1); two material holes (8) are provided on one side of the outer surface of the furnace body (2); electric telescopic rods (4) are fixedly connected to the front and rear sides of the outer surface of the furnace body (2); an injection mechanism (5) is fixedly connected to the upper ends of the two electric telescopic rods (4); a slag cleaning mechanism (6) is fixedly connected to the lower end of the injection mechanism (5); and a telescopic mechanism (7) is fixedly connected to the left side of the upper end of the base (1).

2. A DC ore-fired furnace for convenient slag removal according to claim 1, characterized in that: The telescopic mechanism (7) comprises a support seat (71), the support seat (71) being fixedly connected to the left side of the upper end of the base (1), the upper end of the support seat (71) being slidably connected to two telescopic rods (72), the outer surfaces of the two telescopic rods (72) being slidably connected to a fixed block (73), and the right end of the fixed block (73) being slidably connected to a telescopic plate (74).

3. The DC ore-fired furnace for convenient slag removal according to claim 1, characterized in that: The spray mechanism (5) comprises a support plate (51) and a hose (57). The support plate (51) is fixedly connected to the upper ends of the two electric telescopic rods (4). The front side of the middle of the upper end of the support plate (51) is fixedly connected to a water tank (52). The middle of the lower end of the support plate (51) is fixedly connected to a support column (53). The lower end of the support column (53) is fixedly connected to a rotating mechanism (54). The lower end of the rotating mechanism (54) is rotatably connected to a disc (55). The middle of the upper end of the disc (55) is fixedly connected to an annular tube (56). A plurality of high-pressure guns (58) are fixedly connected in an annular array on a side of the outer surface of the annular tube (56) away from the axis of the disc (55). The lower end of the hose (57) is fixedly connected to the upper side of the annular tube (56). The upper end of the hose (57) passes through the lower end of the support plate (51) and the lower end of the water tank (52) and is connected to the inner cavity of the water tank (52).

4. A DC ore-fired furnace for convenient slag removal according to claim 3, characterized in that: The rotating mechanism (54) comprises a first slide rail (541), wherein the first slide rail (541) is fixedly connected to the lower end of the support column (53), the lower end of the first slide rail (541) is slidably connected to a second slide rail (542), the inner surface of the first slide rail (541) is fixedly connected to a motor (543), the inner surface of the second slide rail (542) is fixedly connected to a support plate (544), and the output end of the motor (543) is fixedly connected to the middle of the upper end of the support plate (544) via a coupling.

5. The DC ore-fired furnace for convenient slag removal according to claim 1, characterized in that: The slag cleaning mechanism (6) comprises a second support plate (62), wherein the second support plate (62) is fixedly connected to the middle part of the lower end of the disc (55), the lower end of the second support plate (62) is fixedly connected to a circular plate (61), the middle part of the upper end of the circular plate (61) is fixedly connected to a driving mechanism (65), a plurality of long holes (63) are formed in a ring-shaped array on one side of the upper end of the circular plate (61) away from the axis thereof, and a plurality of slag knocking mechanisms (64) are fixedly connected in a ring-shaped array on the upper end of the circular plate (61).

6. A DC ore-fired furnace for convenient slag removal according to claim 5, characterized in that: The driving mechanism (65) comprises a hydraulic cylinder (651) and a four-way pipe (652); the hydraulic cylinder (651) is fixedly connected to the middle part of the lower end of the second support plate (62); the four-way pipe (652) is fixedly connected to the middle part of the upper end of the circular plate (61); the upper end of the four-way pipe (652) is fixedly connected to the second circular pipe (656); the inner cavity of the second circular pipe (656) is slidably connected to the first piston plate (653); one end of the four-way pipe (652) away from the axis of the second circular pipe (656) is fixedly connected to the first circular pipe (654); the inner cavities of several of the first circular pipes (654) are slidably connected to the second piston plate (655); one end of several of the second piston plates (655) away from the four-way pipe (652) on the same side is fixedly connected to a round rod (657); and the output end of the hydraulic cylinder (651) is fixedly connected to the upper end of the first piston plate (653).

7. The DC ore-fired furnace for convenient slag removal according to claim 5, characterized in that: The slag knocking mechanism (64) comprises a slide groove (641), a rotating column (645) and two support blocks (644), wherein the slide groove (641) is arranged on a side of the upper end of the circular plate (61) away from its axis, a rack (642) is slidably connected to the bottom wall of the inner cavity of the slide groove (641), the rotating column (645) is rotatably connected to the middle part of the inner cavity of the long hole (63), a plurality of springs (646) are fixed in an annular array on the outer surface of the rotating column (645), and the plurality of springs (646) are away from the rotating column ( One end of each of the two support blocks (645) is fixedly connected to a ball (647), the two support blocks (644) are fixedly connected to the side of the upper end of the circular plate (61) away from its axis, and a gear (643) is connected to the opposite surfaces of the two support blocks (644) for common rotation, and rotating rollers are fixedly connected to both sides of the outer surface of the gear (643), and one end of the rotating roller away from the gear (643) passes through the outer surface of the support block (644) on the same side, extends to the outside and is fixedly connected to one end of the rotating column (645) on the same side.

8. The DC ore-fired furnace for convenient slag removal according to claim 5, characterized in that: One end of the plurality of round rods (657) away from the four-way pipe (652) is fixedly connected to one end of the rack (642) on the same side close to the axis of the circular plate (61).

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