Electric furnace with fast-assembled furnace lining

Abstract

The utility model relates to the field of electric furnaces, and discloses an electric furnace with a fast-assembly furnace lining, which comprises a furnace body and a base plate, stand columns are arranged on the periphery of the furnace body, a top frame is fixedly connected to the top ends of the stand columns, a furnace cover is mounted at the top end of the furnace body, the furnace lining is fixedly connected to the bottom end of the furnace cover, and hanging lugs are mounted at four corners of the top of the furnace cover. Connecting plates are fixedly assembled on the hanging lugs, and connecting vertical rods are welded to the four corners of the bottom end of each connecting plate. According to the electric furnace with the fast-assembly type furnace lining, the air cylinder base is arranged, the furnace cover and the furnace lining are assembled into a whole through bolts in advance, and then the furnace cover and the furnace lining are hoisted to the top frame through four sets of hanging lugs and connecting plates, so that the overall hoisting operation of the furnace lining is achieved, and the tedious step that the furnace lining is independently installed in a furnace body traditionally is avoided; and meanwhile, four groups of lifting cylinders at the bottom are matched to stretch out piston rods, lift the furnace lining and move the furnace body to the lower part, so that the furnace lining smoothly descends and is mounted, rapid assembly and replacement of the furnace lining are completed, and the problem that rapid assembly and replacement of the furnace lining are inconvenient is solved.

Description

Technical Field

[0001] This utility model relates to the field of electric furnace technology, specifically to an electric furnace with a quick-installation furnace lining. Background Technology

[0002] An electric furnace is a high-temperature heating device widely used in metal smelting, heat treatment, and other processes. It typically converts electrical energy into heat energy through resistance wire, electric arc, or induction heating, creating a high-temperature environment inside the furnace to process materials. To prevent thermal damage to the furnace body under high-temperature conditions, a furnace lining structure is usually installed inside the furnace. The furnace lining provides insulation, heat preservation, and corrosion resistance, and is an indispensable high-temperature protection component in electric furnaces.

[0003] Currently, most electric furnace equipment uses a single casting or fixed installation method for the furnace body structure and furnace lining. After the furnace lining is installed, the furnace cover structure is then independently assembled on top of the furnace body. When the furnace lining needs to be replaced due to high-temperature aging, structural damage, or material residue, the furnace cover often needs to be removed first, and then the entire furnace lining is lifted out of the furnace body by a crane. This not only involves complicated procedures, but also increases the risk of lifting due to the large weight of the furnace lining itself. Furthermore, the disassembly process can easily damage the furnace mouth sealing surface, affecting the subsequent assembly accuracy.

[0004] Therefore, there is an urgent need for an electric furnace with a quick-installation furnace lining to solve the above-mentioned technical defects. Utility Model Content

[0005] The purpose of this utility model is to provide an electric furnace with a quick-assembly lining to solve the problem of inconvenient quick assembly and replacement of the lining mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric furnace with a quick-installation furnace lining, comprising a furnace body and a base plate. Columns are arranged around the furnace body, and a top frame is fixedly connected to the top of each column. A furnace cover is installed on the top of the furnace body, and a furnace lining is fixedly connected to the bottom of the furnace cover. Hanging lugs are installed at the four corners of the top of the furnace cover, and connecting plates are fixedly fitted to the hanging lugs. Connecting vertical rods are welded to the four corners of the bottom of the connecting plates, and connecting horizontal rods are welded to the bottom of the connecting vertical rods. Cylinder seats are fixedly connected to the bottom inner side of each column, and lifting cylinders are fixedly installed at each cylinder seat. The piston rod of the lifting cylinder is fixedly connected upwards to the connecting horizontal rod, and a sleeve is welded to the outside of the connecting horizontal rod. The sleeve is fitted around the outside of the column for lifting and lowering.

[0007] As a further technical solution of this utility model, the hanging ear is a ring hoop type, which is fixedly connected by two sets of butt-fitted semi-rings.

[0008] As a further technical solution of the present utility model, the connecting vertical rod and the connecting horizontal rod are perpendicular to each other, and the connecting horizontal rod, the connecting vertical rod and the connecting plate form a "convex" - shaped connecting structure.

[0009] As a further technical solution of the present utility model, the furnace lining is located inside the furnace body, and the top edge of the furnace lining is fixedly connected to the bottom edge of the furnace cover through bolts.

[0010] As a further technical solution of the present utility model, an installation piece is fixedly connected to the middle position of the top of the connecting plate. An articulated seat is welded at the installation piece. Two groups of safety rods are articulated outside the articulated seat. The top ends of the safety rods are respectively articulated to sliders. A guide rod is fixedly connected to the bottom end of the top frame. The sliders are sleeved outside the guide rod and slide.

[0011] As a further technical solution of the present utility model, two groups of blocking pieces for blocking the inward movement of the sliders are fixed in the middle section of the guide rod, and the guide rod and the safety rod form an isosceles triangle hanging structure.

[0012] As a further technical solution of the present utility model, handles are welded on both sides of the outer wall of the furnace body, and the furnace cover and the furnace body are connected by bolts.

[0013] As a further technical solution of the present utility model, track wheels are installed at the four corners of the bottom end of the furnace body. A backing plate is laid below the furnace body, and the backing plate is used for the smooth rolling of the track wheels.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The electric furnace with a quick - installable furnace lining not only realizes the quick assembly and replacement of the furnace lining, improves the heat preservation performance and heat utilization rate of the inner cavity of the electric furnace, but also prevents safety accidents;

[0015] 1. By providing a cylinder seat, a lifting cylinder, a column, a sleeve, a connecting horizontal rod, a connecting vertical rod, a connecting plate, and hanging ears, by pre - assembling the furnace cover and the furnace lining as a whole through bolts, and then hoisting them onto the top frame through four groups of hanging ears and the connecting plate, the overall hoisting operation of the furnace lining is realized, avoiding the cumbersome steps of the traditional method of separately installing the furnace lining into the furnace body. At the same time, in cooperation with the four groups of lifting cylinders at the bottom extending the piston rods to lift the furnace lining and then moving the furnace body below, the furnace lining can be smoothly lowered and installed, completing the quick assembly and replacement of the furnace lining;

[0016] 2. By providing a furnace body, a backing plate, track wheels, a furnace lining, and handles, in this design, the furnace cover and the furnace lining are fixedly connected by bolts to form a whole. The furnace lining and the furnace body are hermetically connected by pressing through bolts. At the same time, the traditional split - cover structure is abandoned to avoid the leakage of hot gas caused by splicing gaps, reduce the weight to be hoisted, provide flexible movement of the furnace body, and at the same time, handles are welded on both sides of the outer wall of the furnace body, which is convenient for personnel to perform horizontal adjustment, ensuring the fitting accuracy during the pressing process of the furnace lining, thereby effectively improving the heat preservation performance and heat utilization rate of the inner cavity of the electric furnace.

[0017] 3. By setting up a hinged seat, mounting plate, furnace cover, safety bar, slider, guide rod, and top frame, the safety bar changes with the lifting angle of the furnace lining, causing the slider to slide and unfold to form a limiting structure. When the furnace lining descends, the slider retracts inward, forming a two-way constraint on the furnace lining, effectively preventing the furnace lining from suddenly falling due to the failure of the lifting cylinder or air leakage. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a top view of the connecting plate structure of this utility model;

[0020] Figure 3 This is a front view structural diagram of the safety bar of this utility model;

[0021] Figure 4 This is a front view structural diagram of the furnace body of this utility model.

[0022] In the diagram: 1. Furnace body; 2. Pad plate; 3. Track wheel; 4. Furnace lining; 5. Cylinder seat; 6. Lifting cylinder; 7. Column; 8. Sleeve; 9. Connecting horizontal bar; 10. Connecting vertical bar; 11. Connecting plate; 12. Hanging lug; 13. Hinge seat; 14. Mounting plate; 15. Furnace cover; 16. Safety bar; 17. Sliding block; 18. Guide rod; 19. Top frame; 20. Handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of an electric furnace with a quick-installation furnace lining, comprising a furnace body 1 and a base plate 2. Columns 7 are arranged around the furnace body 1, and a top frame 19 is fixedly connected to the top of each column 7. A furnace cover 15 is installed on the top of the furnace body 1, and a furnace lining 4 is fixedly connected to the bottom of the furnace cover 15. Hanging lugs 12 are installed at each of the four corners of the top of the furnace cover 15, and connecting plates 11 are fixedly fitted to the hanging lugs 12. Connecting vertical rods 10 are welded to the four corners of the bottom of the connecting plates 11, and connecting horizontal rods 10 are welded to the bottom of the connecting vertical rods 10. Cylinder seats 5 are fixedly connected to the inner bottom of rod 9 and column 7. Lifting cylinders 6 are fixedly installed at cylinder seats 5. The piston rod of lifting cylinder 6 is fixedly connected upward to connecting crossbar 9. Sleeve 8 is welded to the outside of connecting crossbar 9. Sleeve 8 is sleeved on the outside of column 7 for lifting. The lug 12 is a ring hoop type, which is fixedly connected by two sets of butt-fitted semi-rings. Connecting vertical rod 10 and connecting crossbar 9 are perpendicular to each other. Connecting crossbar 9, connecting vertical rod 10 and connecting plate 11 form a "convex" connection structure.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, by pre-assembling the furnace cover 15 and the furnace lining 4 with bolts, and then hoisting them onto the top frame 19 via four sets of hanging lugs 12 and connecting plates 11, the overall hoisting operation of the furnace lining 4 is achieved, avoiding the cumbersome steps of installing the furnace lining separately into the furnace body 1 in the traditional way; at the same time, with the piston rods extended by the four sets of lifting cylinders 6 at the bottom, the furnace lining 4 is raised, and then the furnace body 1 is moved to the bottom, so that the furnace lining can be smoothly lowered and installed.

[0026] The furnace lining 4 is located inside the furnace body 1. The top edge of the furnace lining 4 is fixedly connected to the bottom edge of the furnace cover 15 by bolts. Handles 20 are welded on both sides of the outer wall of the furnace body 1. The furnace cover 15 is connected to the furnace body 1 by bolts. Track wheels 3 are installed at the four corners of the bottom end of the furnace body 1. A pad 2 is laid under the furnace body 1. The pad 2 is used to allow the track wheels 3 to roll smoothly.

[0027] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the furnace cover 15 and the furnace lining 4 are bolted together to form an integral whole. The furnace lining 4 and the furnace body 1 are pressed and sealed together by bolts. At the same time, the traditional split cover structure is abandoned to avoid hot gas leakage caused by splicing gaps, reduce the weight required for hoisting, and provide flexible movement of the furnace body 1. Handles 20 are welded on both sides of the outer wall of the furnace body 1 to facilitate horizontal adjustment by personnel and ensure the fitting accuracy of the furnace lining 4 during the pressing process.

[0028] A mounting plate 14 is fixedly connected to the top middle position of the connecting plate 11. A hinge seat 13 is welded to the mounting plate 14. Two sets of safety rods 16 are hinged to the outside of the hinge seat 13. The top of the safety rods 16 are respectively hinged to the slider 17. A guide rod 18 is fixedly connected to the bottom of the top frame 19. The slider 17 is sleeved on the outside of the guide rod 18 and slides. Two sets of stop plates for preventing the slider 17 from moving inward are fixed in the middle section of the guide rod 18. The guide rod 18 and the safety rod 16 form an isosceles triangular suspension structure.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, a mounting plate 14 is welded to the top center of the connecting plate 11. The mounting plate 14 is connected to a hinge seat 13. Two sets of safety rods 16 are provided above the hinge seat 13. The top ends of the safety rods 16 are respectively hinged to the sliders 17. The sliders 17 are slidably installed outside the guide rods 18. The bottom of the guide rods 18 is fixed to the top frame 19. During the hoisting process, the safety rods 16 change with the lifting angle of the furnace lining 4, causing the sliders 17 to slide and unfold to form a limiting structure. When the furnace lining 4 descends, the sliders 17 retract inward, forming a two-way constraint on the furnace lining 4, preventing the furnace lining 4 from suddenly falling due to the failure or leakage of the lifting cylinder 6.

[0030] The computer software involved in the lifting cylinder 6 carrier in this application is software technology known to those skilled in the art; it is merely applied to the aforementioned hardware carrier. In other words, the computer software involved in this application is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software involved in the aforementioned hardware carrier, nor is it a key technical point of the invention.

[0031] Therefore, the lifting cylinder 6 involved in this application is a physical functional module that combines computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in this physical functional module are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of this application, in order to solve the corresponding technical problems to be solved by this application.

[0032] Working principle: Before assembly, the furnace lining 4 and the furnace cover 15 are fixedly connected into an integral structure by bolts, and the lugs 12 at the four corners of the top of the furnace cover 15 are clamped to the connecting plate 11 through two groups of butted semi-ring structures to form a stable lifting assembly. A connecting vertical rod 10 and a connecting cross rod 9 are welded to the bottom end of the connecting plate 11, and the three together form a "convex" - shaped connecting structure to ensure the strength and stability of the lifting connection. Subsequently, the integral lifting assembly is installed on the top frame 19 through the lugs 12 to complete the preset positioning. Then, four lifting cylinders 6 are activated. Their bodies are fixed on the cylinder seats 5, and the piston rods extend upward, pushing the connecting cross rod 9 to rise. A sleeve 8 is welded to the outside of the connecting cross rod 9, and the sleeve 8 is in sliding fit with the outside of the column 7, causing the entire furnace cover 15 and furnace lining 4 assembly to move vertically upward along the column 7 to a position higher than the top of the furnace body 1. Subsequently, the furnace body 1 is smoothly rolled and moved on the cushion plate 2 laid below through four track wheels 3 provided at the bottom end, adjusting the positions of the furnace body 1 and the furnace lining 4 to be aligned. The handle 20 welded on both sides of the furnace body 1 is used for precise position adjustment to ensure that the furnace cover 15 and the top opening of the furnace body 1 are concentric. After positioning, the lifting cylinders 6 slowly retract, driving the piston rods to descend, causing the entire furnace lining 4 to fall and insert into the furnace body 1, and realizing the pressing connection through bolts between the bottom edge of the furnace cover 15 and the top edge of the furnace body 1 to form a sealing structure, preventing the leakage of high - temperature gas and ensuring the heating efficiency. During the entire lifting and hoisting process, the mounting piece 14 in the middle of the top of the connecting plate 11 is connected to two safety rods 16 through a hinge seat 13. The top ends of the safety rods 16 are hinged to the slider 17, and the slider 17 is sleeved on the guide rod 18 fixed to the top frame 19. A limiting stop piece is provided in the middle of the guide rod 18. During the hoisting process, the safety rods 16 form an isosceles triangle hoisting structure as the furnace lining 4 rises and falls, and the slider 自动展开或收拢 (should be 'automatically expands or retracts' in English). Even if the lifting cylinders 6 fail accidentally, it can effectively prevent the furnace lining 4 from suddenly falling and causing danger.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An electric furnace with a quick-installation lining, comprising a furnace body (1) and a base plate (2), characterized in that: The furnace body (1) is surrounded by columns (7). The top ends of the columns (7) are fixedly connected to a top frame (19). A furnace cover (15) is installed at the top end of the furnace body (1). The bottom end of the furnace cover (15) is fixedly connected to a furnace lining (4). At the four corners of the top of the furnace cover (15), hanging ears (12) are installed. The hanging ears (12) are fixedly assembled with connecting plates (11). At the four corners of the bottom end of the connecting plates (11), connecting vertical rods (10) are welded. At the bottom ends of the connecting vertical rods (10), connecting cross rods (9) are welded. At the inner bottom ends of the columns (7), cylinder seats (5) are fixedly connected. At the cylinder seats (5), lifting cylinders (6) are fixedly installed. The piston rod parts of the lifting cylinders (6) are fixedly connected upward to the connecting cross rods (9). A sleeve (8) is welded on the outside of the connecting cross rod (9). The sleeve (8) is sleeved outside the column (7) for lifting and lowering.

2. An electric furnace with a quick-installation lining according to claim 1, characterized in that: The hanging ears (12) are in the form of hoop type and are fixedly connected by two groups of butt - assembled half - rings.

3. An electric furnace with a quick-installation lining according to claim 1, characterized in that: The connecting vertical rods (10) and the connecting cross rods (9) are perpendicular to each other. The connecting cross rods (9), the connecting vertical rods (10) and the connecting plates (11) form a "convex" - shaped connection structure.

4. An electric furnace with a quick-installation lining according to claim 1, characterized in that: The furnace lining (4) is located inside the furnace body (1). The top edge of the furnace lining (4) is fixedly connected to the bottom edge of the furnace cover (15) by bolts.

5. An electric furnace with a quick-installation lining according to claim 1, characterized in that: At the middle position of the top of the connecting plate (11), a mounting piece (14) is fixedly connected. At the mounting piece (14), a hinge seat (13) is welded. Two safety rods (16) are hinged outside the hinge seat (13). The top ends of the safety rods (16) are respectively hinged to sliders (17). The bottom end of the top frame (19) is fixedly connected to a guide rod (18). The sliders (17) are sleeved outside the guide rod (18) for sliding.

6. An electric furnace with a quick-installation lining according to claim 5, characterized in that: Two blocking pieces for blocking the inward movement of the sliders (17) are fixed in the middle section of the guide rod (18). The guide rod (18) and the safety rods (16) form an isosceles triangle suspension structure.

7. An electric furnace with a quick-installation lining according to claim 1, characterized in that: Handles (20) are welded on both sides of the outer wall of the furnace body (1). The furnace cover (15) and the furnace body (1) are connected by bolts.

8. An electric furnace with a quick-installation lining according to claim 1, characterized in that: Track wheels (3) are installed at the four corners of the bottom end of the furnace body (1). A cushion plate (2) is laid below the furnace body (1). The cushion plate (2) is used for the smooth rolling of the track wheels (3).

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