A slagging mechanism for a smelting furnace

Abstract

The utility model relates to metallurgical field discloses a kind of smelting furnace slagging-off mechanism, including moving mechanism, material shoveling mechanism and connecting mechanism.Moving mechanism adopts the cross slide structure formed by lead screw and guide rod, accurately positions and moves in horizontal plane to drive material shoveling mechanism.The material shoveling mechanism is driven by double motor respectively to drive two telescopic rods, cooperatively controls the lifting and inclination angle of slagging-off bucket, and the slagging-off bucket is screen mesh structure, and molten slag and metal liquid can be separated to reduce loss.Connecting mechanism adopts dovetail groove and pin shaft combination, firmly connects material shoveling mechanism and moving mechanism, and realizes quick disassembly and assembly.The utility model integrates high-precision movement, flexible slagging-off action and convenient maintenance function, solves the problem of unstable positioning, single action and complicated disassembly and assembly in prior art, significantly improves the slagging-off efficiency and equipment maintainability.

Description

Technical Field

[0001] This utility model relates to the field of metallurgy, and in particular to a slag removal mechanism for a smelting furnace. Background Technology

[0002] In the metallurgical industry, the smelting furnace is a key piece of equipment used to melt metal raw materials and remove impurities, and slag removal is an indispensable and important part of the smelting process. The main purpose of slag removal is to remove the slag (such as oxides, non-metallic inclusions, etc.) generated during the smelting process from the surface of the molten metal to ensure the purity of the molten metal and improve the quality of the final product.

[0003] Traditional slag removal operations in smelting furnaces mainly rely on manual operation of simple tools such as shovels and rakes, or the use of relatively simple fixed mechanical devices. In the harsh environment of high temperature and high dust, workers or operators remove or scrape away the slag floating on the surface of the molten metal during the smelting process from near the furnace opening.

[0004] However, existing technologies have the following significant drawbacks in practical applications: First, the positioning accuracy is low. Many existing slag removal mechanisms only use simple sliding, guide rails, or fixed supports, lacking high-precision two-dimensional planar positioning capabilities. They cannot flexibly and accurately deliver the slag removal bucket to different slag areas in the furnace, especially in large or irregularly shaped furnaces, making it difficult to achieve precise cleaning of molten slag. Second, the connection structure is fixed, making maintenance and replacement inconvenient. In existing slag removal mechanisms, the moving parts and the actuating parts mostly use rigid connections or complex bolt fixing methods. When it is necessary to inspect, replace the slag removal bucket, or adjust the configuration, the disassembly process is cumbersome and time-consuming, which is not conducive to the daily maintenance and rapid response of the equipment. Utility Model Content

[0005] This utility model provides a slag removal mechanism for a smelting furnace, which solves the problems of low positioning accuracy and difficulty in replacement. This utility model meets the needs of the modern metallurgical industry for efficient, safe and intelligent slag removal equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is a slag removal mechanism for a smelting furnace, comprising: Moving mechanism, material handling mechanism, and connecting mechanism; The moving mechanism includes an X-axis motor, a first lead screw, a first guide rod, a first slider, and a first fixing member. The first fixing member serves as the mounting base for the entire X-axis moving assembly and is fixedly connected to the side of the melting furnace. The X-axis motor drives the first lead screw to rotate, and the first lead screw cooperates with the first slider. Simultaneously, the first slider is mounted on the first guide rod, which is arranged parallel to the first lead screw and fixed at both ends to the first fixing member. The moving mechanism also includes a Y-axis motor, a second lead screw, a second guide rod, a second slider, and a second fixing member. The second fixing member is fixedly connected to the first slider in the X-axis direction. The Y-axis motor drives the second lead screw to rotate, and the second slider cooperates with the second lead screw and is simultaneously mounted on the second guide rod.

[0007] The material-removing mechanism includes a slag-removing hopper, a first motor, a second motor, a first telescopic rod, a second telescopic rod, a connecting piece, and a fixing plate. Two first motors and a second motor are fixedly installed on the top of the fixing plate. The first motor is connected to the first telescopic rod, and similarly, the second motor is connected to the second telescopic rod. The bottom ends of both the first and second telescopic rods are connected to the slag-removing hopper through a connecting piece. The slag-removing hopper has a screen structure, and the connecting piece contains a rotating shaft.

[0008] The connecting mechanism includes a first fixing block, a second fixing block, and a pin. The first fixing block is fixedly installed at the bottom of the second slider, and the second fixing block is fixedly installed at the top of the fixing plate. The first fixing block and the second fixing block are connected by a dovetail groove structure. After the dovetail groove is in place, a pin is used to pass laterally through the corresponding through holes on the first fixing block and the second fixing block.

[0009] This utility model provides a slag removal mechanism for a smelting furnace. By adopting a high-precision cross slide moving mechanism, the slag removal bucket achieves precise positioning and stable movement in a two-dimensional plane. The material removal mechanism driven by dual motors and double telescopic rods enables flexible lifting and angle adjustment of the slag removal bucket. Its screen-type slag removal bucket effectively separates molten slag from liquid metal, reducing metal loss. At the same time, the innovative dovetail groove and pin shaft combination connection mechanism achieves a firm, reliable, and quick-disassembly connection between the material removal part and the moving part, significantly improving the automation level, work efficiency, and ease of equipment maintenance of slag removal operations. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the slag removal mechanism of the smelting furnace of this utility model; Figure 2 This is a schematic diagram of the overall structure of the moving mechanism of the slag removal mechanism of the smelting furnace of this utility model; Figure 3 This is a schematic diagram of the overall structure of the material removal mechanism of the slag removal mechanism of the smelting furnace of this utility model; Figure 4This is a schematic diagram of the overall structure of the connecting mechanism of the slag removal mechanism of the smelting furnace of this utility model.

[0011] Explanation of reference numerals in the attached figures: 100. Moving mechanism; 110. X-axis motor; 111. First fixing component; 112. First slider; 113. First guide rod; 114. First lead screw; 120. Y-axis motor; 121. Second fixing component; 122. Second slider; 123. Second guide rod; 124. Second lead screw; 200. Material handling mechanism; 201. Slag hopper; 202. First motor; 203. Second motor; 204. First telescopic rod; 205. Second telescopic rod; 206. Connecting component; 207. Fixing plate; 300. Connecting mechanism; 301. First fixing block; 302. Pin; 303. Second fixing block. Detailed Implementation

[0012] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0013] like Figures 1 to 4 As shown in the figure, the slag removal mechanism of the smelting furnace provided in this embodiment of the present invention includes a moving mechanism 100, a material removal mechanism 200 and a connecting mechanism 300. The moving mechanism 100 is connected to the material removal mechanism 200 through the connecting mechanism 300 and is arranged as a whole on the side of the furnace mouth of the large smelting furnace. In one specific embodiment, the moving mechanism 100 is key to achieving precise positioning. It employs a cross-slide structure, possessing two degrees of freedom of movement in the X and Y axes. In the X-axis direction, it mainly includes an X-axis motor 110, a first lead screw 114, a first guide rod 113, a first slider 112, and a first fixing member 111. The first fixing member 111 serves as the mounting base for the entire X-axis moving assembly and is fixedly connected to the side of the melting furnace. The X-axis motor 110 drives the first lead screw 114 to rotate via a coupling. The first lead screw 114 and the first slider 112 form a lead screw-nut pair through a threaded engagement. Simultaneously, the first slider 112 is fitted onto the first guide rod 113, which is arranged parallel to the first lead screw 114 and fixed at both ends to the first fixing member 111. When the X-axis motor 110 operates, it drives the first lead screw 114 to rotate, forcing the first slider 112 to perform precise linear motion along the first guide rod 113. Rod 113 bears the bending moment and lateral force during the movement, ensuring the smoothness and accuracy of the movement. In the Y-axis direction, its structure is similar to that of the X-axis, but it is installed at the X-axis motion output end. Specifically, it includes a Y-axis motor 120, a second lead screw 124, a second guide rod 123, a second slider 122, and a second fixing member 121. The second fixing member 121 is fixedly connected to the first slider 112 in the X-axis direction, thus inheriting the X-axis movement. The Y-axis motor 120 drives the second lead screw 124 to rotate. The second slider 122 and the second lead screw 124 form another set of lead screw and nut pairs, which are simultaneously mounted on the second guide rod 123. The second guide rod 123 ensures the straightness of the movement in the Y-axis direction. The lead screw transmission method has the advantages of high precision, high rigidity, and self-locking capability, ensuring that the material feeding mechanism 200 is accurately positioned and remains stable at any position. The cross-shaped layout is compact, making full use of the furnace side space and achieving no dead angle coverage in the two-dimensional plane. In one specific embodiment, the material-removing mechanism 200 is the core component for performing the slag-removing action, including a slag-removing bucket 201, a first motor 202, a second motor 203, a first telescopic rod 204, a second telescopic rod 205, a connecting piece 206, and a fixing plate 207. The fixing plate 207 serves as the mounting base, on which two first motors 202 and second motors 203 are fixedly mounted. The output end of the first motor 202 is connected to the drive unit of the first telescopic rod 204 to control the extension and retraction of the first telescopic rod 204. Similarly, the second motor 203 is connected to the second telescopic rod 205. The bottom ends of both the first telescopic rod 204 and the second telescopic rod 205 are hinged to the slag-removing bucket 201 via a connecting piece 206. There is a certain gap at the connection point of the first telescopic rod 204 and the second telescopic rod 205. The distance between the two telescopic rods is such that when the second motor 203 drives the second telescopic rod 205 to extend and retract independently, the tilt angle of the slag-scraping bucket 201 can be changed, allowing it to better "catch" the molten slag during slag removal, or to adjust its posture to prevent molten slag from spilling when lifted. When the first motor 202 drives the first telescopic rod 204 to move, and works in conjunction with the second telescopic rod 205, the overall lifting and lowering of the slag-scraping bucket 201 can be achieved. The slag-scraping bucket 201 has a screen structure, which allows molten metal to flow back into the furnace through the screen holes during the slag removal process, thereby effectively reducing the loss of useful metals, improving the utilization rate of raw materials, and making the removed slag "drier" for easier subsequent processing. The connecting piece 206 contains a rotating shaft structure, making the slag-scraping bucket 201 and the telescopic rod a movable connection, ensuring the flexibility and smoothness of angle adjustment. In one specific embodiment, to achieve convenient quick assembly and disassembly, this utility model is provided with a connecting mechanism 300, including a first fixing block 301, a second fixing block 302, and a pin 303. The first fixing block 301 is fixedly installed at the bottom of the second slider 122 on the Y-axis of the moving mechanism 100, and the second fixing block 302 is fixedly installed at the top of the fixing plate 207 of the feeding mechanism 200. The first fixing block 301 and the second fixing block 302 are connected by a dovetail groove structure. Specifically, one of the fixing blocks is designed with a protruding dovetail groove. The tenon has a tail-shaped tenon, and the other fixing block is designed with a dovetail-shaped mortise that fits precisely with it. During assembly, the tenon is slid in along the mortise direction to achieve the initial positioning and fastening of the two parts in the vertical and horizontal directions. After the dovetail is in place, a pin 303 is used to pass laterally through the corresponding through holes on the first fixing block 301 and the second fixing block 302. The pin 303 plays a final locking role to prevent the dovetail from coming apart under vibration or impact. During disassembly, simply pull out the pin 303 to slide the material-pulling mechanism 200 out and separate it along the dovetail direction. The working process of this utility model is as follows: The working process of a slag removal mechanism for a smelting furnace is divided into a positioning stage, a slag removal stage, and a maintenance stage. Positioning stage: X-axis motor 110 drives the first lead screw 114 to rotate, which drives the first slider 112 to move along the first guide rod 113, thereby sending the entire Y-axis moving assembly and the material handling mechanism 200 connected thereto to the target X coordinate. At the same time or in sequence, Y-axis motor 120 drives the second lead screw 124 to rotate, which drives the second slider 122 to move along the second guide rod 123, sending the material handling mechanism 200 to the target Y coordinate. Slag removal stage: After the moving mechanism 100 moves the slag removal bucket 201 to the starting point, the first motor 202 and the second motor 203 work together to drive the first telescopic rod 204 and the second telescopic rod 205 to extend, lowering the slag removal bucket 201 and penetrating into the slag layer of the smelting furnace; the second motor 203 precisely adjusts the tilt angle of the slag removal bucket 201 by independently controlling the extension and retraction of the second telescopic rod 205, so that it can "catch" the molten slag in the best posture. Then, the moving mechanism 100 is started again, driving the slag removal bucket 201 to move horizontally along the preset path, collecting and removing the slag towards the furnace opening; Maintenance phase: After the slag removal operation is completed, the slag removal mechanism 200 lifts the slag removal bucket 201 through the telescopic rod, and then the moving mechanism 100 moves it to the standby or maintenance position on the side of the furnace. When the slag removal mechanism 200 needs to be repaired or replaced, the operator only needs to pull out the pin 303 in the connecting mechanism 300 to release the final locking of the dovetail groove connection. Then, the slag removal mechanism 200 with the second fixing block 302 installed can be smoothly slid out along the dovetail groove direction on the first fixing block 301 to achieve rapid separation. The above-disclosed embodiments are merely specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A slag-removing mechanism for a smelting furnace, characterized in that, include: The moving mechanism (100), the material-eating mechanism (200), and the connecting mechanism (300) are provided. The material-eating mechanism (200) includes a slag-eating bucket (201), a drive assembly, a connector (206), and a fixing plate (207). The moving mechanism (100) is a cross slide structure and is connected to the fixing plate (207) of the material-eating mechanism (200) through the connecting mechanism (300). The connecting mechanism (300) includes a first fixing block (301) and a second fixing block (303) that cooperate with each other, and a pin (302) for locking. The first fixing block (301) is fixedly connected to the moving mechanism (100), and the second fixing block (303) is fixedly connected to the material-eating mechanism (200). The first fixing block (301) and the second fixing block (303) are interlocked by a dovetail groove structure and locked by the transversely inserted pin (302).

2. The slag removal mechanism for a smelting furnace according to claim 1, characterized in that: The moving mechanism (100) includes an X-axis moving assembly and a Y-axis moving assembly; the X-axis moving assembly includes an X-axis motor (110), a first lead screw (114), a first guide rod (113), and a first slider (112); the X-axis motor (110) drives the first lead screw (114) to rotate, and the first slider (112) and the first lead screw (114) form a lead screw and nut pair, and are slidably fitted on the first guide rod (113); the Y-axis moving assembly is installed on the X-axis moving assembly. The first slider (112) of the component includes a Y-axis motor (120), a second lead screw (124), a second guide rod (123), and a second slider (122); the Y-axis motor (120) drives the second lead screw (124) to rotate, the second slider (122) and the second lead screw (124) form a lead screw nut pair, and are slidably fitted on the second guide rod (123); the first fixing block (301) of the connecting mechanism (300) is fixedly installed on the second slider (122).

3. The slag removal mechanism for a smelting furnace according to claim 2, characterized in that: Both the X-axis moving assembly and the Y-axis moving assembly are provided with fixing parts for mounting the lead screw and the guide rod, namely the first fixing part (111) and the second fixing part (121).

4. The slag removal mechanism for a smelting furnace according to claim 1, characterized in that: The drive assembly of the material handling mechanism (200) includes a first motor (202), a second motor (203), a first telescopic rod (204) driven by the first motor (202), and a second telescopic rod (205) driven by the second motor (203).

5. The slag removal mechanism for a smelting furnace according to claim 4, characterized in that: The connector (206) has a rotating shaft structure inside, which makes the slag bucket (201) and the first telescopic rod (204) and the second telescopic rod (205) movably connected.

6. The slag removal mechanism for a smelting furnace according to claim 4, characterized in that: There is a spatial distance between the connection point of the first telescopic rod (204) and the second telescopic rod (205) and the slag bucket (201). By controlling the extension and retraction of the second telescopic rod (205) alone, the tilt angle of the slag bucket (201) can be adjusted.

7. The slag removal mechanism for a smelting furnace according to claim 1, characterized in that: The slag hopper (201) has a screen structure.

8. The slag removal mechanism for a smelting furnace according to claim 1, characterized in that: The dovetail groove structure includes a dovetail tenon disposed on one of the first fixing block (301) and the second fixing block (303), and a dovetail groove disposed on the other and cooperating with the tenon.

9. A slag-removing mechanism for a smelting furnace according to claim 1, characterized in that: The pin (302) is transversely inserted into the corresponding through holes of the first fixing block (301) and the second fixing block (303).

10. A slag-removing mechanism for a smelting furnace according to claim 1, characterized in that: The moving mechanism (100) is arranged on the side of the furnace opening of the large smelting furnace.

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