Hot slag direct-current electric arc furnace

Abstract

The utility model discloses a hot slag direct-current electric arc furnace, and relates to the technical field of direct-current electric arc furnaces. Comprising a base, a rotating frame is fixedly connected to the top end of one side of the base, a rotating column is rotationally connected to the top side of the rotating frame, a furnace bottom is fixedly connected to the top side of the rotating column, a circle of furnace body is fixedly connected to the top side of the outer edge of the furnace bottom, and a sliding rail is fixedly connected to the bottom side of the furnace bottom; a sliding block is slidably connected between the inner walls of the sliding rails, and the bottom end of the sliding block is rotationally connected with a telescopic rod. Through the arrangement of the telescopic sliding block, the furnace body can rotate through the connection of the rotating column and the rotating frame, so that materials in the furnace body can be conveniently poured out, a worker does not need to stand around the furnace body, the worker is prevented from being scalded by the poured-out materials, meanwhile, through the arrangement of the supporting rod, the furnace body is kept horizontal in real time after being pressed, and the working efficiency is improved. And the possibility of accidents caused by material leakage due to inclination of the furnace body due to vibration in the hot melting process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current arc furnaces, in particular to a hot molten slag direct current arc furnace. Background Art

[0002] A DC arc furnace is an arc furnace that uses direct current as energy. Like an AC arc furnace, it uses the arc generated between the electrode and the charge (or molten pool) to generate heat to achieve the purpose of smelting. It can be used to melt steel, alloys, and non-ferrous metals. Generally, an arc furnace requires the cathode graphite rod at the upper end to move up and down continuously to strike the arc. The motor is usually controlled by a PLC control cabinet to rotate forward and reverse, and the mounting frame with the cathode graphite rod installed is driven up and down by a threaded rod to continuously strike the arc and conduct hot slag. An existing hot slag DC arc furnace (Announcement No.: CN217236394U) has at least the following defects in use:

[0003] In actual use, the materials in the furnace body need to be poured out after the hot melting work is completed. In the above solution, the furnace body used needs to be dumped by the staff after the work is completed, which is more dangerous. In addition, during the hot melting process, it is difficult to ensure that the furnace body always remains level, which may cause material splashing, which is more dangerous. Utility Model Content

[0004] The main purpose of the utility model is to provide a hot molten slag DC arc furnace, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A hot slag DC arc furnace comprises a base, a rotating frame is fixedly connected to the top of one side of the base, a rotating column is rotatably connected to the top side of the rotating frame, a furnace bottom is fixedly connected to the top side of the rotating column, a furnace body is fixedly connected to the top side of the outer edge of the furnace bottom, a slide rail is fixedly connected to the bottom side of the furnace bottom, a slider is slidably connected between the inner walls of the slide rail, a telescopic rod is rotatably connected to the bottom end of the slider, the telescopic rod can be telescoped under the drive of a telescopic driving source, a support rod is fixedly connected to one side of the slide rail, and the bottom of the support rod can contact the top side of the base.

[0007] Preferably, a cover body is placed on the top side of the furnace body, a graphite column is inserted in the center of the cover body, a lifting ring is fixedly connected to the outer edge of the graphite column, the top side of the lifting ring can contact the bottom side of the cover body, and the graphite column can be lifted and lowered under the drive of a lifting drive source.

[0008] Preferably, a receiving groove is provided on the top side of the furnace bottom, a conductive block is fixedly connected between the inner walls of the receiving groove, a power-carrying rod is connected to one side of the conductive block, and the power-carrying rod extends to the outside of the furnace bottom, and a protective tube is provided on the outside of the furnace bottom and the furnace body, and the inside of the protective tube is passed through by the power-carrying rod.

[0009] Preferably, a support plate is fixedly connected to the top of the base on the side facing away from the rotating frame, an outer sleeve is fixedly connected to the support plate on the side facing the furnace body, an inner sleeve is slidably connected to the inner wall of one side of the outer sleeve, a connecting sleeve is fixedly connected to one side of the inner sleeve, and the connecting sleeve and the outer sleeve are connected by a spring.

[0010] Preferably, a power-carrying column is fixedly connected between the inner walls of the connecting sleeve, and a power-carrying wire is connected to the side of the power-carrying column facing away from the furnace body. The power-carrying wire extends to the outside through the interior of the inner sliding sleeve and the outer sliding sleeve, and the power-carrying column can be inserted into the protective tube and contact the corresponding end of the power-carrying rod.

[0011] Preferably, two sliding columns are slidably connected to both sides of the cover body, the bottom sides of the two sliding columns are connected to the base, and the top sides of the two sliding columns are commonly fixedly connected to a lifting frame, and the top side of the lifting frame is fixedly connected to the lifting drive source.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model arranges a retractable slider so that the furnace body can rotate through the connection between the rotating column and the rotating frame, thereby facilitating the pouring out of the materials in the furnace body without the workers standing around the furnace body, thereby preventing the workers from being scalded by the poured materials. At the same time, the arrangement of the support rods allows the furnace body to remain horizontal when being compacted, thereby avoiding the possibility of the furnace body tilting due to vibration during the hot melting process, resulting in material leakage and causing accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an isometric view of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the dumping device of the utility model;

[0016] Figure 3 This is a schematic diagram of the furnace device structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the power supply device of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the cover device of the utility model.

[0019] In the figure: 101, furnace body; 102, rotating column; 103, rotating frame; 104, base; 105, hydraulic lift; 106, slider; 107, slide rail; 108, conductive block; 109, furnace bottom; 110, protection tube; 111, guide frame; 112, power rod; 201, power wire; 202, inner sliding sleeve; 203, support plate; 204, power column; 205, connecting sleeve; 206, spring; 207, outer sliding cylinder; 301, cover; 302, graphite column; 303, lifting ring; 304, clamping claw; 305, lifting motor; 306, lifting frame; 307, sliding column. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] A DC electric arc furnace is an electric arc furnace that uses direct current as energy. Like an AC electric arc furnace, it uses the arc generated between the electrode and the charge (or molten pool) to generate heat to achieve the purpose of smelting. It can be used to melt steel or alloys and non-ferrous metals. Generally, an electric arc furnace requires the cathode graphite rod at the upper end to move up and down continuously to strike the arc. Example

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] A hot slag DC arc furnace comprises a base 104, a rotating frame 103 is fixedly connected to the top of one side of the base 104, a rotating column 102 is rotatably connected to the top side of the rotating frame 103, a furnace bottom 109 is fixedly connected to the top side of the rotating column 102, a furnace body 101 is fixedly connected to the outer edge top side of the furnace bottom 109, a slide rail 107 is fixedly connected to the bottom side of the furnace bottom 109, a slider 106 is slidably connected between the inner walls of the slide rail 107, a telescopic rod is rotatably connected to the bottom end of the slider 106, and the telescopic rod can be telescoped under the drive of a telescopic driving source, a support rod is fixedly connected to one side of the slide rail 107, and the bottom of the support rod can contact the top side of the base 104. In this embodiment, the telescopic driving source is a hydraulic lift 105, whose operation will drive the furnace body 101 to rotate. Because the slider 106 can form an angle with the telescopic rod, the furnace body 101 can be tilted at a larger angle to pour out the materials therein more fully. The support rod is generally arranged at an eccentric position of the furnace bottom 109, so that one side of the support rod can pass by the side of the hydraulic lift 105 without hindering the rotation of the furnace body 101. When the support rod contacts the top side of the base 104, the furnace bottom 109 and the base 104 remain parallel.

[0026] A cover 301 is placed on the top side of the furnace body 101, and a graphite column 302 is inserted in the center of the cover 301. A lifting ring 303 is fixedly connected to the outer edge of the graphite column 302. The top side of the lifting ring 303 can contact the bottom side of the cover 301, and the graphite column 302 can be lifted and lowered under the drive of the lifting drive source. Two sliding columns 307 are slidably connected to both sides of the cover 301. The bottom sides of the two sliding columns 307 are connected to the base 104, and the top sides of the two sliding columns 307 are fixedly connected to a lifting frame 306. The top side of the lifting frame 306 is fixedly connected to the lifting drive source. In this embodiment, the lifting drive source is a lifting motor 305, and a clamping claw 304 is provided at its output end for fixing with the graphite column 302. The clamping claw 304 is provided with an electrode in contact with the graphite column 302 to energize the graphite column 302. The downward pressure of the clamping jaws 304 will squeeze the cover body 301 to further stabilize the furnace body 101, and the upward movement of the clamping jaws 304 will allow the lifting ring 303 to contact the cover body 301, so that the cover body 301 can be lifted.

[0027] A receiving groove is provided on the top side of the furnace bottom 109, and a conductive block 108 is fixedly connected between the inner walls of the receiving groove. A power rod 112 is connected to one side of the conductive block 108, and the power rod 112 extends to the outside of the furnace bottom 109. A protective tube 110 is provided outside the furnace bottom 109 and the furnace body 101, and the inside of the protective tube 110 is passed by the power rod 112. A support plate 203 is fixedly connected to the top of the side of the base 104 facing away from the rotating frame 103, and an outer sleeve 207 is fixedly connected to the side of the support plate 203 facing the furnace body 101. An inner sleeve 202 is slidably connected to the inner wall of one side of the outer sleeve 207, and a connecting sleeve 205 is fixedly connected to one side of the inner sleeve 202, and the connecting sleeve 205 and the outer sleeve 207 are connected by a spring 206. An energizing column 204 is fixedly connected between the inner walls of the connection sleeve 205, and an energizing wire 201 is connected to the side of the energizing column 204 facing away from the furnace body 101. The energizing wire 201 extends to the outside through the inner sliding sleeve 202 and the outer sliding sleeve 207, and the energizing column 204 can be inserted into the protection tube 110 and contact the corresponding end of the energizing rod 112. In this embodiment, a guide frame 111 is provided on one side of the protection tube 110 for the connection sleeve 205 to be inserted, so that the energizing rod 112 and the energizing column 204 are in contact and connected, thereby generating an arc between the conductive block 108 and the graphite column 302 to perform a heating operation.

[0028] It should be noted that the utility model is a hot slag DC arc furnace. When in use, the material needs to be injected into the furnace body 101 first, and then the cover body 301 is covered to perform discharge hot melting. After the hot melting is completed, the cover body 301 is raised and the furnace body 101 is tilted to pour out the product.

[0029] 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 embodiments and their equivalents.

Claims

1. A hot slag DC electric arc furnace, comprising a base (104), characterized in that: A rotating frame (103) is fixedly connected to the top of one side of the base (104), a rotating column (102) is rotatably connected to the top side of the rotating frame (103), a furnace bottom (109) is fixedly connected to the top side of the rotating column (102), an outer edge of the furnace bottom (109) is fixedly connected to a furnace body (101), a slide rail (107) is fixedly connected to the bottom side of the furnace bottom (109), a slider (106) is slidably connected between the inner walls of the slide rail (107), a telescopic rod is rotatably connected to the bottom end of the slider (106), and the telescopic rod can be extended and retracted under the drive of a telescopic driving source, and a support rod is fixedly connected to one side of the slide rail (107), and the bottom of the support rod can contact the top side of the base (104).

2. A hot slag DC electric arc furnace according to claim 1, characterized in that: A cover body (301) is placed on the top side of the furnace body (101), a graphite column (302) is inserted in the center of the cover body (301), a lifting ring (303) is fixedly connected to the outer edge of the graphite column (302), the top side of the lifting ring (303) can contact the bottom side of the cover body (301), and the graphite column (302) can be raised and lowered under the drive of a lifting drive source.

3. A hot molten slag DC electric arc furnace according to claim 1, characterized in that: A receiving groove is provided on the top side of the furnace bottom (109), a conductive block (108) is fixedly connected between the inner walls of the receiving groove, a power rod (112) is connected to one side of the conductive block (108), and the power rod (112) extends to the outside of the furnace bottom (109), and a protective tube (110) is provided outside the furnace bottom (109) and the furnace body (101), and the inside of the protective tube (110) is passed by the power rod (112).

4. A hot slag DC electric arc furnace according to claim 3, characterized in that: A support plate (203) is fixedly connected to the top of the side of the base (104) facing away from the rotating frame (103), an outer sleeve (207) is fixedly connected to the side of the support plate (203) facing the furnace body (101), an inner sleeve (202) is slidably connected to the inner wall of one side of the outer sleeve (207), a connecting sleeve (205) is fixedly connected to one side of the inner sleeve (202), and the connecting sleeve (205) and the outer sleeve (207) are connected via a spring (206).

5. A hot slag DC electric arc furnace according to claim 4, characterized in that: An energizing column (204) is fixedly connected between the inner walls of the connection sleeve (205), and a energizing wire (201) is connected to the side of the energizing column (204) facing away from the furnace body (101). The energizing wire (201) extends to the outside through the interior of the inner sliding sleeve (202) and the outer sliding sleeve (207), and the energizing column (204) can be inserted into the interior of the protective tube (110) and contact the corresponding end of the energizing rod (112).

6. A hot slag DC electric arc furnace according to claim 2, characterized in that: Two sliding columns (307) are slidably connected to both sides of the cover body (301); the bottom sides of the two sliding columns (307) are connected to the base (104); the top sides of the two sliding columns (307) are fixedly connected to a lifting frame (306); and the top side of the lifting frame (306) is fixedly connected to a lifting drive source.

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