Closed silicon manganese ore heating furnace with adjustable electrodes

Abstract

The utility model discloses an electrode adjustable closed silicon manganese hot furnace, which comprises a furnace body, a furnace cover is arranged on the top of the furnace body, an installation assembly is arranged in the furnace cover, the installation assembly comprises a plurality of installation pipes which are inserted in the furnace cover in a sliding manner, and the installation pipes are distributed at equal intervals. The outer walls of the circumferences of the mounting pipe connecting flanges are fixedly connected with the same connecting frame, the outer wall of the top of the furnace cover is fixedly connected with a supporting frame, two lead screws are rotationally connected between the supporting frame and the furnace cover, the connecting frame is arranged outside the two lead screws in a threaded and sleeving mode, and all parameters of the two lead screws are kept consistent. According to the utility model, the installation assembly is arranged, so that the height of the electrode body in the vertical direction can be adjusted, the position of the electrode body can be correspondingly changed, the discharge intensity of the electrode can be changed, and the optimization of an electromagnetic environment in a furnace is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ore-blast furnaces, in particular to a closed silicon-manganese ore-blast furnace with adjustable electrodes. Background Art

[0002] Submerged arc furnace is mainly used for smelting ore. When using the submerged arc furnace to smelt minerals such as ferrosilicon, raw materials such as ferrosilicon are added into the submerged arc furnace to increase the temperature inside the submerged arc furnace, thereby smelting materials such as ferrosilicon. The electrode system plays an extremely critical role in the entire working process of the submerged arc furnace.

[0003] After searching, a utility model with Chinese patent publication number CN219693905U discloses a device for collecting and utilizing tail gas from a silicon-manganese ore-fired furnace, including an ore-fired furnace, a feed chute, a screw conveyor, a heat exchanger and a dust collector. The ore-fired furnace is provided with an tail gas pipe, the upper end of the feed chute is connected to the discharge port of the screw conveyor, and the lower end of the feed chute is connected to the ore-fired furnace.

[0004] As mentioned above, the silicon manganese ore hot furnace will be equipped with an electrode system inside to adjust the electromagnetic environment in the furnace. However, the existing electrode system is generally fixed, so the discharge intensity is also fixed. During specific use, the electromagnetic environment in the furnace will also vary depending on the environment, making it inconvenient to adjust and there is room for improvement. Utility Model Content

[0005] The utility model aims to provide a closed silicon-manganese ore furnace with adjustable electrodes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed silicon-manganese ore heating furnace with adjustable electrodes, comprising a furnace body, a furnace cover installed on the top of the furnace body, a mounting assembly installed inside the furnace cover, the mounting assembly comprising a plurality of mounting tubes slidably plugged inside the furnace cover, and the plurality of mounting tubes are distributed at equal distances, the circumferential outer walls of the plurality of mounting tube connecting flanges are fixedly connected to the same connecting frame, the outer wall of the top of the furnace cover is fixedly connected to a supporting frame, two screw rods are rotatably connected between the supporting frame and the furnace cover, the connecting frame is threadedly sleeved on the outside of the two screw rods, and various parameters of the two screw rods are kept consistent.

[0007] As a further preferred embodiment of the present technical solution, both ends of the outer wall at the top of the support frame are rotatably connected to a worm gear, and the two worm gears are coaxially fixed with the two screw rods respectively. The top of the inner wall at both ends of the support frame is rotatably connected to the same transmission shaft, and two worm gears are fixedly sleeved on the circumferential outer wall of the transmission shaft, and the two worm gears form a transmission fit with the two worm gears respectively. A motor is fixedly installed on the top of the outer wall at one end of the support frame, and the motor shaft and one end of the transmission shaft are coaxially fixed.

[0008] The height of the installation in the vertical direction can be adjusted, thereby ensuring that the position of the electrode body will also change accordingly, so that the discharge intensity of the electrode will also change, which is beneficial to optimizing the electromagnetic environment in the furnace. If you need to adjust the height of the electrode body, you only need to start the motor outside the support frame, and the motor shaft drives the transmission shaft to rotate. The transmission shaft drives the two worms to rotate synchronously, and the two worms drive the two worm wheels to rotate in the same direction. The two lead screws are driven by the two worm wheels to rotate synchronously. Under the mutual restriction and transmission of the two lead screws, the connecting frame will be driven to move in the vertical direction. At this time, the positions of multiple mounting tubes will also be driven to move by the connecting frame, and the position of the electrode body installed inside the mounting tube will also change.

[0009] As a further preferred embodiment of the technical solution, an electrode body is slidably inserted into each of the three mounting tubes, a plurality of bolts are threadedly connected between the electrode bodies and mounting tubes adjacent to each other, and the plurality of electrode bodies extend into the internal space of the furnace body.

[0010] As a further preferred embodiment of the present technical solution, three sealing assemblies are installed on the top of the furnace cover, and the three sealing assemblies are respectively arranged outside the three installation tubes.

[0011] As a further preferred embodiment of the present technical solution, the sealing assembly includes two limit grooves opened at both ends of the outer wall of the furnace cover top, and a mounting bracket is slidably connected inside the two limit grooves, and a sealing ring is provided on the outer wall of one end of the two mounting brackets close to each other.

[0012] As a further preferred embodiment of the present technical solution, the outer wall of the top of the furnace cover is rotatably connected to a gear, one end of each of the two mounting frames is fixedly connected to a rack, both of the racks are meshed with the gear, and a hydraulic cylinder is fixedly installed at one end of the outer wall of the top of the furnace cover, and the hydraulic cylinder is fixedly connected to one of the racks.

[0013] Start the hydraulic cylinder on the top of the furnace cover, which drives a rack to move towards it. The rack drives the gear to rotate through meshing, and the gear can drive the other rack to move in the opposite direction through meshing. Then the two mounting frames will be driven by the two racks to approach each other, and the two sealing rings will also be squeezed on the outside of the connection between the mounting tube and the furnace cover. The sealing ring can fill the connection when it is deformed under force, which is beneficial to improve the sealing between the mounting tube and the furnace cover.

[0014] As a further preferred embodiment of the present technical solution, twelve explosion-proof valves are fixedly installed on the outside of the furnace cover, four of which are arranged on the wide side of the furnace cover, and two of which are arranged on the narrow side of the furnace cover.

[0015] The utility model provides a closed silicon-manganese ore furnace with adjustable electrodes, which has the following beneficial effects:

[0016] (1) The utility model can adjust the height of the installation in the vertical direction by setting the installation component, thereby ensuring that the position of the electrode body will also change accordingly, so that the discharge intensity of the electrode will also change, which is beneficial to optimizing the electromagnetic environment in the furnace. If it is necessary to adjust the height of the electrode body, it is only necessary to start the motor outside the support frame, and the motor shaft drives the transmission shaft to rotate. The transmission shaft drives the two worms to rotate synchronously, and the two worms drive the two worm wheels to rotate in the same direction. The two lead screws are driven by the two worm wheels to rotate synchronously. Under the mutual restriction and transmission of the two lead screws, the connecting frame will be driven to move in the vertical direction. At this time, the positions of multiple installation pipes will also be driven by the connecting frame to move, and the position of the electrode body installed inside the installation pipe will also change.

[0017] (2) The utility model sets a sealing component to start the hydraulic cylinder on the top of the furnace cover. The hydraulic cylinder drives a rack to move toward the direction close to it. The rack drives the gear to rotate through meshing. The gear can drive the other rack to move in the opposite direction through meshing. Then, the two mounting frames will be driven by the two racks to approach each other. The two sealing rings will also be squeezed on the outside of the connection between the mounting tube and the furnace cover. The sealing rings will be deformed by force to fill the connection, which is beneficial to improve the sealing between the mounting tube and the furnace cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0020] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 4 For the utility model Figure 2 The enlarged structural diagram at B in the middle;

[0022] In the figure: 1. furnace body; 2. furnace cover; 3. explosion-proof valve; 4. electrode body; 5. mounting assembly; 6. sealing assembly; 501. mounting pipe; 502. connecting frame; 503. screw rod; 504. supporting frame; 505. worm gear; 506. motor; 507. transmission shaft; 508. worm; 601. limiting groove; 602. mounting frame; 603. sealing ring; 604. rack; 605. gear; 606. hydraulic cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 2 and Figure 3 As shown, in this embodiment, a closed silicon-manganese ore heating furnace with adjustable electrodes includes a furnace body 1, which is characterized in that a furnace cover 2 is installed on the top of the furnace body 1, and a mounting assembly 5 is installed inside the furnace cover 2, and the mounting assembly 5 includes a plurality of mounting tubes 501 slidably plugged inside the furnace cover 2, and the plurality of mounting tubes 501 are distributed at equal distances, and the outer wall of the circumference of the flange connecting the plurality of mounting tubes 501 is fixedly connected to the same connecting frame 502, the outer wall of the top of the furnace cover 2 is fixedly connected to a supporting frame 504, and two screw rods 503 are rotatably connected between the supporting frame 504 and the furnace cover 2, and the connecting frame 502 is threadedly sleeved on the outside of the two screw rods 503, and various parameters of the two screw rods 503 are kept consistent.

[0025] A worm gear 505 is rotatably connected to both ends of the outer wall at the top of the support frame 504, and the two worm gears 505 are coaxially fixed with the two lead screws 503 respectively. The top of the inner wall at both ends of the support frame 504 is rotatably connected to the same transmission shaft 507, and two worm gears 508 are fixedly sleeved on the circumferential outer wall of the transmission shaft 507. The two worm gears 508 form a transmission fit with the two worm gears 505 respectively. A motor 506 is fixedly installed on the top of the outer wall at one end of the support frame 504, and the rotating shaft of the motor 506 and one end of the transmission shaft 507 are coaxially fixed.

[0026] like Figure 1 As shown in FIG. 2 , an electrode body 4 is slidably inserted into each of the three mounting tubes 501 , and multiple bolts are threadedly connected between the electrode bodies 4 and the mounting tubes 501 that are close to each other, and the multiple electrode bodies 4 extend into the internal space of the furnace body 1 .

[0027] If the height of the electrode body 4 needs to be adjusted, it is only necessary to start the motor 506 outside the support frame 504. The motor 506 shaft drives the transmission shaft 507 to rotate, and the transmission shaft 507 drives the two worms 508 to rotate synchronously. The two worms 508 drive the two worm wheels 505 to rotate in the same direction. The two screw rods 503 are driven by the two worm wheels 505 to rotate synchronously. Under the mutual restriction and transmission of the two screw rods 503, the connecting frame 502 will be driven to move in the vertical direction. At this time, the positions of multiple mounting tubes 501 will also be driven to move by the connecting frame 502, and the positions of the electrode bodies 4 installed inside the mounting tubes 501 will also change.

[0028] like Figure 2 and Figure 4 As shown, three sealing assemblies 6 are installed on the top of the furnace cover 2 , and the three sealing assemblies 6 are respectively arranged outside the three installation tubes 501 .

[0029] The sealing assembly 6 includes two limiting grooves 601 opened at both ends of the outer wall of the top of the furnace cover 2. A mounting frame 602 is slidably connected inside the two limiting grooves 601. The outer walls of the ends of the two mounting frames 602 that are close to each other are both provided with sealing rings 603.

[0030] A gear 605 is rotatably connected to the top outer wall of the furnace cover 2, and one end of each of the two mounting frames 602 is fixedly connected to a rack 604, and both racks 604 are meshed with the gear 605. A hydraulic cylinder 606 is fixedly installed at one end of the top outer wall of the furnace cover 2, and the hydraulic cylinder 606 is fixedly connected to one of the racks 604.

[0031] Start the hydraulic cylinder 606 on the top of the furnace cover 2, and the hydraulic cylinder 606 drives a rack 604 to move towards it. The rack 604 drives the gear 605 to rotate through meshing, and the gear 605 can drive the other rack 604 to move in the opposite direction through meshing. Then, the two mounting frames 602 will be driven by the two racks 604 to approach each other, and the two sealing rings 603 will also be squeezed on the outside of the connection between the mounting tube 501 and the furnace cover 2. The sealing ring 603 can be deformed under force to fill the connection, which is beneficial to improve the sealing between the mounting tube 501 and the furnace cover 2.

[0032] like Figure 1 As shown in Figure 2, twelve explosion-proof valves 3 are fixedly installed on the outside of the furnace cover 2, four of which are arranged on the wide side of the furnace cover 2, and two are arranged on the narrow side of the furnace cover 2, with a diameter of Φ400 mm. When the pressure in the furnace increases instantly, the safety explosion-proof valve 3 can automatically open and release the pressure to prevent safety accidents, and a detection signal of the closed state is provided at each safety explosion-proof valve 3, so that the opening and closing state of the safety explosion-proof valve 3 can be monitored in the central control room.

[0033] The utility model provides a closed silicon-manganese ore furnace with adjustable electrodes, and the specific working principle is as follows:

[0034] If the height of the electrode body 4 needs to be adjusted, it is only necessary to start the motor 506 outside the support frame 504. The motor 506 shaft drives the transmission shaft 507 to rotate. The transmission shaft 507 drives the two worms 508 to rotate synchronously. The two worms 508 drive the two worm wheels 505 to rotate in the same direction. The two screw rods 503 are driven by the two worm wheels 505 to rotate synchronously. Under the mutual restriction and transmission of the two screw rods 503, the connecting frame 502 will be driven to move in the vertical direction. At this time, the positions of multiple mounting tubes 501 will also be driven by the connecting frame 502 to move, and the electrode body 4 installed inside the mounting tube 501 The position of the furnace cover 2 also changes, and then the hydraulic cylinder 606 on the top of the furnace cover 2 is started. The hydraulic cylinder 606 drives a rack 604 to move toward the direction close to it. The rack 604 drives the gear 605 to rotate through meshing, and the gear 605 can drive the other rack 604 to move in the opposite direction through meshing. Then, the two mounting frames 602 will be driven by the two racks 604 to approach each other, and the two sealing rings 603 will also be squeezed on the outside of the connection between the mounting tube 501 and the furnace cover 2. The sealing ring 603 can be deformed by force to fill the connection, which is beneficial to improve the sealing between the mounting tube 501 and the furnace cover 2.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed silicon-manganese ore furnace with adjustable electrodes, comprising a furnace body (1), characterized in that: A furnace cover (2) is installed on the top of the furnace body (1), and a mounting assembly (5) is installed inside the furnace cover (2). The mounting assembly (5) comprises a plurality of mounting tubes (501) slidably plugged inside the furnace cover (2), and the plurality of mounting tubes (501) are distributed at equal distances. The outer walls of the circumference of the flanges of the plurality of mounting tubes (501) are fixedly connected to the same connecting frame (502). The outer wall of the top of the furnace cover (2) is fixedly connected to a supporting frame (504), and two screw rods (503) are rotatably connected between the supporting frame (504) and the furnace cover (2). The connecting frame (502) is threadedly sleeved on the outside of the two screw rods (503), and various parameters of the two screw rods (503) are consistent.

2. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 1, characterized in that: Both ends of the outer wall at the top of the support frame (504) are rotatably connected to a worm wheel (505), and the two worm wheels (505) are coaxially fixed to the two lead screws (503) respectively. The top of the inner wall at both ends of the support frame (504) is rotatably connected to the same transmission shaft (507), and the circumferential outer wall of the transmission shaft (507) is fixedly sleeved with two worms (508), and the two worms (508) are respectively in transmission cooperation with the two worm wheels (505). A motor (506) is fixedly installed on the top of the outer wall at one end of the support frame (504), and the rotating shaft of the motor (506) is coaxially fixed to one end of the transmission shaft (507).

3. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 1, characterized in that: An electrode body (4) is slidably inserted into each of the three mounting tubes (501); a plurality of bolts are threadedly connected between the electrode bodies (4) and mounting tubes (501) that are adjacent to each other; and the plurality of electrode bodies (4) extend into the internal space of the furnace body (1).

4. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 1, characterized in that: Three sealing assemblies (6) are installed on the top of the furnace cover (2), and the three sealing assemblies (6) are respectively arranged outside three installation tubes (501).

5. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 4, characterized in that: The sealing assembly (6) comprises two limiting grooves (601) provided at both ends of the outer wall at the top of the furnace cover (2), a mounting frame (602) being slidably connected inside the two limiting grooves (601), and a sealing ring (603) is provided on the outer walls of the ends of the two mounting frames (602) that are close to each other.

6. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 5, characterized in that: The top outer wall of the furnace cover (2) is rotatably connected to a gear (605); one end of each of the two mounting frames (602) is fixedly connected to a rack (604); both of the two racks (604) are meshed with the gear (605); a hydraulic cylinder (606) is fixedly mounted on one end of the top outer wall of the furnace cover (2); and the hydraulic cylinder (606) is fixedly connected to one of the racks (604).

7. The closed silicon-manganese ore furnace with adjustable electrodes according to claim 1, characterized in that: Twelve explosion-proof valves (3) are fixedly installed on the outside of the furnace cover (2), four of which are arranged on the wide side of the furnace cover (2), and two of which are arranged on the narrow side of the furnace cover (2).

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