Electroslag remelting furnace capable of effectively improving composition segregation

Abstract

The utility model discloses an electroslag remelting furnace capable of effectively improving composition segregation, which belongs to the technical field of electroslag remelting furnaces and comprises a bottom water tank, a crystallizer inner shell and a crystallizer outer shell are respectively arranged at the top of the bottom water tank, and a cooling cavity is arranged between the crystallizer inner shell and the crystallizer outer shell. In the utility model, the driving motor drives the rotating shaft, the gear, the annular gear, the annular block, the mounting block, the cleaning block and the scraping plate to rotate, so that the cleaning block and the scraping plate clean the inner shell of the crystallizer and the inner peripheral side of the bottom water tank respectively, and scale is prevented from being adhered to the surfaces of the bottom water tank and the cooling cavity after long-time use; and therefore, the influence on the heat conduction coefficient and the cooling effect of the surface of the crystallizer inner shell is prevented, the influence on the cooling speed of materials in the crystallizer inner shell and the uniformity of components in metal materials is prevented, the component segregation of the metal materials in the using process of products is effectively improved, and the overall using performance of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electroslag remelting furnace, especially relates to an electroslag remelting furnace capable of effectively improving component segregation. BACKGROUND

[0002] The electroslag remelting furnace is a device for recycling metal materials, which is usually used for recycling waste metals and alloys, and its working principle is to heat metal materials to a molten state by using electric energy, and then cool the metal materials to solidify into new metal blocks or rods through a specific process, which can not only be used to produce aerospace bearing steel, high-temperature alloy, precision alloy and certain non-ferrous metals, but also can be used to produce hundreds of tons of large high-quality alloy steel ingots, large flat ingots or plate ingots, hollow steel ingots, composite plates, and special-shaped castings such as melting and casting rolls, gear blanks, turbine discs, pressure vessels, aircraft landing gears and gun barrels.

[0003] As disclosed in Chinese patent document (CN221588639U), an electroslag remelting furnace and an electroslag remelting device, wherein the electroslag remelting furnace comprises a crystallizer and an electrode column; the top end of the crystallizer is of an open structure, and the process of electroslag remelting to form a steel ingot is completed in the crystallizer; the electrode column is multiple, is arranged at the open end of the crystallizer, and the axis is vertically arranged; the side walls of the multiple electrode columns are fixedly connected with each other to form an electrode embryo at the open end of the crystallizer; in the production process of a large-size module, the electrode embryo is formed by multiple electrode columns with small cross-sectional dimensions; compared with the form of a single electrode column with a large cross-sectional dimension as an electrode embryo, the molten slag crystallization process is carried out in different regions, which effectively improves the component segregation of the formed steel ingot, and then the steel ingot is forged into a module and then subjected to heat treatment, so that the uneven hardness is alleviated, thereby facilitating the improvement of the service life of the large-size module; however, scale is generated in the cooling water flow passage during long-time use of the device, which affects the heat transfer coefficient and cooling effect of the surface of the crystallizer, and therefore, improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem that scale is generated in the cooling water flow passage during long-time use of the prior art, which affects the heat transfer coefficient and cooling effect of the surface of the crystallizer, and therefore, an electroslag remelting furnace capable of effectively improving component segregation is provided.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides an electric slag remelting furnace that can effectively improve component segregation, comprising a bottom water tank, a crystallizer inner shell and a crystallizer outer shell are arranged on the top of the bottom water tank respectively, a cooling cavity is arranged between the crystallizer inner shell and the crystallizer outer shell, an annular seat is fixedly connected to the outer periphery of the crystallizer inner shell, a cleaning assembly is arranged inside the annular seat, a protective cover is arranged on the top of the crystallizer inner shell and the crystallizer outer shell, and an auxiliary sealing assembly is arranged on the top of the protective cover.

[0007] The cleaning assembly comprises a gear, the gear is arranged inside the annular seat, an annular gear is engagedly connected to one side of the gear, an annular block is fixedly connected to the inner periphery of the annular gear, an installation block is fixedly connected to the top of the annular block on one side and extends into the cooling cavity, and a cleaning block is fixedly connected to one side of the installation block.

[0008] As a further description of the above technical solution:

[0009] The cleaning block is attached to the outer periphery of the crystallizer inner shell, the annular block and the cleaning block are both rotationally connected inside the crystallizer outer shell, the crystallizer outer shell is fixedly connected to the outer periphery of the crystallizer inner shell, the bottom of the annular block extends into the bottom water tank and is fixedly connected to a scraper, and the scraper is arranged in the shape of U.

[0010] As a further description of the above technical solution:

[0011] A rotating shaft is fixedly connected inside the gear, a driving motor is fixedly connected to the bottom end of the rotating shaft, the bottom of the driving motor is fixedly connected to the inner wall of the annular seat, and the bottom of the annular seat is fixedly connected to the top of the bottom water tank.

[0012] As a further description of the above technical solution:

[0013] A water inlet pipe is communicated to one side of the bottom of the cooling cavity, a water outlet pipe is communicated to one side of the top of the cooling cavity, and a slag removal pipe is communicated to one side of the bottom of the bottom water tank and the cooling cavity.

[0014] As a further description of the above technical solution:

[0015] The auxiliary sealing assembly comprises a top seat, the top seat is fixedly connected to the top of the protective cover, a cavity is formed in the inside of the top seat, and a reversible screw rod is arranged on one side inside the cavity.

[0016] As a further description of the above technical solution:

[0017] The reversible screw rod is rotationally connected inside the top seat, and a hand crank is fixedly connected to one end of the reversible screw rod and extends to the outside of the top seat.

[0018] As a further description of the above technical solution:

[0019] The thread direction of the positive and negative screw rod is opposite, and two threaded sleeves are threadedly connected to the positive and negative screw rod, one side of the threaded sleeve is fixedly connected with an arc block, the arc block is slidingly sealed in the cavity, and a sealing layer is fixedly connected to the inner circumferential side of the arc block.

[0020] As a further description of the above technical solution:

[0021] The top seat is internally provided with a through hole in the center, the through hole is communicated with the cavity, and a dummy electrode is arranged in the through hole, and a consumable electrode is arranged at the bottom of the dummy electrode and located in the inner shell of the crystallizer.

[0022] As described above, due to the adoption of the above technical solution, the beneficial effects of the present utility model are:

[0023] 1、In the utility model, the cleaning assembly is arranged, the driving motor drives the rotating shaft, the gear, the ring gear, the annular block, the mounting block, the cleaning block and the scraper to rotate, the cleaning block and the scraper clean the inner shell of the crystallizer and the inner circumferential side of the bottom water tank respectively, so that the scale adhered to the surface of the bottom water tank and the cooling cavity after long-term use is prevented, thereby preventing the influence on the heat transfer coefficient of the surface of the inner shell of the crystallizer and the cooling effect, preventing the influence on the cooling speed of the material in the inner shell of the crystallizer and the uniformity of the internal composition of the metal material, effectively improving the composition segregation of the metal material in the use process of the product, and improving the overall use performance of the equipment.

[0024] 2、In the utility model, the auxiliary sealing assembly is arranged, the worker manually operates the hand shaker to drive the positive and negative screw rod to rotate, the threaded sleeve drives the arc block and the sealing layer to move to the outer circumferential side of the dummy electrode, so that the top seat and the inner shell of the crystallizer are closed, the external air entering the inside of the equipment is reduced, thereby reducing the oxidation reaction in the inside of the equipment, helping to maintain the reducing atmosphere in the furnace, and being beneficial to the smelting of the metal and the stability of the alloy composition. ACCURATE DRAWINGS

[0025] Figure 1 It is the overall three-dimensional structure schematic diagram of the utility model;

[0026] Figure 2 It is the overall internal three-dimensional structure schematic diagram of the utility model;

[0027] Figure 3 It is the A place local amplification structure schematic diagram of the utility model Figure 2 ;

[0028] Figure 4 It is the B place local amplification structure schematic diagram of the utility model Figure 2 ;

[0029] Figure 5Part of the three-dimensional structure schematic diagram of the cleaning assembly in the utility model.

[0030] Legend:

[0031] 1, bottom water tank; 2, crystallizer inner shell; 3, crystallizer outer shell; 4, cooling cavity; 5, cleaning assembly; 501, drive motor; 502, rotating shaft; 503, gear; 504, ring gear; 505, ring block; 506, mounting block; 507, cleaning block; 6, protective cover; 7, auxiliary sealing assembly; 701, top seat; 702, cavity; 703, positive and negative screw; 704, hand shaker; 705, threaded sleeve; 706, arc block; 707, sealing layer; 8, dummy electrode; 9, consumable electrode. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: an electric-shock remelting furnace for effectively improving component segregation, including bottom water tank 1, bottom water tank 1 top is separately provided with crystallizer inner shell 2 and crystallizer outer shell 3, crystallizer inner shell 2 and crystallizer outer shell 3 between being provided with cooling cavity 4, crystallizer inner shell 2 outer circumferential side is fixedly connected with annular seat, annular seat inside is provided with cleaning assembly 5, crystallizer inner shell 2 and crystallizer outer shell 3 top are provided with protective cover 6, protective cover 6 top is provided with auxiliary sealing assembly 7;

[0034] The cleaning assembly 5 comprises a gear 503 arranged inside the annular seat, one side of the gear 503 is engagedly connected with an annular gear 504, the inner circumferential side of the annular gear 504 is fixedly connected with an annular block 505, one side of the top of the annular block 505 extends to the inside of the cooling cavity 4 and is fixedly connected with a mounting block 506, one side of the mounting block 506 is fixedly connected with a cleaning block 507, the cleaning block 507 is attached to the outer circumferential side of the crystallizer inner shell 2, the annular block 505 and the cleaning block 507 are both rotationally connected inside the crystallizer outer shell 3, the crystallizer outer shell 3 is fixedly connected to the outer circumferential side of the crystallizer inner shell 2, the bottom of the annular block 505 extends to the inside of the bottom water tank 1 and is fixedly connected with a scraper, the scraper is arranged in a U shape, the inside of the gear 503 is fixedly connected with a rotating shaft 502, the bottom end of the rotating shaft 502 is fixedly connected with a driving motor 501, the bottom of the driving motor 501 is fixedly connected with the inner wall of the annular seat, the bottom of the annular seat is fixedly connected with the top of the bottom water tank 1, one side of the bottom of the cooling cavity 4 is communicated with a water inlet pipe, one side of the top of the cooling cavity 4 is communicated with a water outlet pipe, and one side of the bottom of the bottom water tank 1 and the cooling cavity 4 is communicated with a impurity discharge pipe.

[0035] Specifically, first, place the device in a suitable place, connect the top of the dummy electrode 8 with the external vertical moving unit, then connect the water inlet pipe with the external cooling liquid supply device, adjust the material from the through hole into the inside of the crystallizer inner shell 2, then drive the dummy electrode 8 and the consumable electrode 9 into the inside of the crystallizer inner shell 2 through the external vertical moving unit, convert the electric energy into controllable alternating current arc through the external wire and the dummy electrode 8, heat and melt the material in the inside of the crystallizer inner shell 2 through the controllable alternating current arc, and deliver the cooling liquid into the inside of the cooling cavity 4 through the water inlet pipe to cool the material in the inside of the crystallizer inner shell 2 through the external cooling liquid supply device. According to actual needs, start the driving motor 501, drive the rotating shaft 502 and the gear 503 to rotate through the driving motor 501, and transmit power to the annular gear 504 through the linkage effect between the gear 503 and the annular gear 504, so that the annular gear 504 drives the annular block 505 to rotate, and then transmit power to the cleaning block 507 and the scraper through the linkage effect between the annular block 505, the mounting block 506, the cleaning block 507 and the scraper, so that the cleaning block 507 and the scraper clean the inner circumferential sides of the crystallizer inner shell 2 and the bottom water tank 1 respectively, to prevent scale from adhering to the surfaces of the bottom water tank 1 and the cooling cavity 4 after long-term use, thereby preventing the heat transfer coefficient of the surface of the crystallizer inner shell 2 and the cooling effect from being affected, so as to prevent the cooling speed of the material in the inside of the crystallizer inner shell 2 and the uniformity of the internal composition of the metal material from being affected, effectively improving the component segregation of the metal material during use of the product, and improving the overall use performance of the device.

[0036] The auxiliary sealing assembly 7 comprises a top base 701 fixedly connected at the top of the protective cover 6, and a cavity 702 is formed in the top base 701, a lead screw 703 is arranged at one side of the cavity 702, the lead screw 703 is rotatably connected in the top base 701, one end of the lead screw 703 extends to the outside of the top base 701 and is fixedly connected with a hand crank 704, the screw threads on the two sides of the lead screw 703 are oppositely arranged, two threaded sleeves 705 are threadedly connected on the lead screw 703, arc-shaped blocks 706 are fixedly connected at one side of the threaded sleeves 705, the arc-shaped blocks 706 are slidingly sealed in the cavity 702, sealing layers 707 are fixedly connected at the inner circumferential sides of the arc-shaped blocks 706, a through hole is formed in the center of the top base 701, the through hole is communicated with the cavity 702, a dummy electrode 8 is arranged in the through hole, a consumable electrode 9 is arranged at the bottom of the dummy electrode 8, and the consumable electrode 9 is arranged in the crystallizer inner shell 2.

[0037] Specific embodiments: the worker manually operates the hand crank 704 to drive the lead screw 703 to rotate, the linkage effect between the lead screw 703 and the two threaded sleeves 705 is utilized to transmit power to the two threaded sleeves 705, the arc-shaped blocks 706 and the sealing layers 707 are driven by the threaded sleeves 705 to move to the outer circumferential side of the dummy electrode 8, so as to seal the top base 701 and the crystallizer inner shell 2, the external air entering the equipment is reduced, the oxidation reaction in the equipment is reduced, the reducing atmosphere in the furnace is maintained, the metal smelting and the alloy composition stability are facilitated, the cleaning plate can be arranged at the other side of the mounting block 506 according to actual needs, the cleaning plate is in contact with the inner circumferential side of the crystallizer outer shell 3, and the material of the sealing layer 707 can be selected according to actual needs.

[0038] Working principle: in use, first place the device in the right place, and the top of the dummy electrode 8 is connected with the external vertical moving unit, then the water inlet pipe is connected with the external cooling liquid supply device, the material is adjusted from the through hole to the inside of the crystallizer inner shell 2, then the dummy electrode 8 and the consumable electrode 9 are driven into the inside of the crystallizer inner shell 2 by the external vertical moving unit, the consumable electrode 9 converts the electric energy into controllable alternating current arc through the external wire and the dummy electrode 8, the material in the inside of the crystallizer inner shell 2 is heated and smelted by the controllable alternating current arc, the cooling liquid is delivered to the inside of the cooling cavity 4 by the external cooling liquid supply device to cool the material in the inside of the crystallizer inner shell 2, the driving motor 501 is started according to the actual need, the rotating shaft 502 and the gear 503 are driven to rotate by the driving motor 501, the power is transmitted to the ring gear 504 by the linkage effect between the gear 503 and the ring gear 504, the ring gear 504 drives the ring block 505 to rotate, then the power is transmitted to the cleaning block 507 and the scraper by the linkage effect between the ring block 505, the mounting block 506, the cleaning block 507 and the scraper, the cleaning block 507 and the scraper clean the inside of the crystallizer inner shell 2 and the inner circumferential side of the bottom water tank 1 respectively, then the staff manually operates the hand crank 704 to drive the lead screw 703 to rotate, the power is transmitted to the two threaded sleeves 705 by the linkage effect between the lead screw 703 and the two threaded sleeves 705, the threaded sleeve 705 drives the arc block 706 and the sealing layer 707 to move to the outer circumferential side of the dummy electrode 8 to close and protect the top seat 701 and the crystallizer inner shell 2.

[0039] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent substitutions or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electroslag remelting furnace for effectively improving component segregation, comprising a bottom water tank (1), characterized in that: The bottom water tank (1) is provided with a crystallizer inner shell (2) and a crystallizer outer shell (3) on the top. A cooling chamber (4) is provided between the crystallizer inner shell (2) and the crystallizer outer shell (3). An annular seat is fixedly connected to the outer periphery of the crystallizer inner shell (2). A cleaning component (5) is provided inside the annular seat. A protective cover (6) is provided on the top of the crystallizer inner shell (2) and the crystallizer outer shell (3). An auxiliary sealing component (7) is provided on the top of the protective cover (6). The cleaning component (5) includes a gear (503) disposed inside an annular seat. An annular gear (504) is meshed with one side of the gear (503). An annular block (505) is fixedly connected to the inner circumference of the annular gear (504). One side of the top of the annular block (505) extends into the cooling cavity (4) and is fixedly connected to a mounting block (506). A cleaning block (507) is fixedly connected to one side of the mounting block (506).

2. The electroslag remelting furnace for effectively improving component segregation according to claim 1, characterized in that: The cleaning block (507) is attached to the outer periphery of the inner shell (2) of the crystallizer. The annular block (505) and the cleaning block (507) are rotatably connected to the inside of the outer shell (3) of the crystallizer. The outer shell (3) of the crystallizer is fixedly connected to the outer periphery of the inner shell (2) of the crystallizer. The bottom of the annular block (505) extends into the bottom water tank (1) and is fixedly connected to a scraper. The scraper is U-shaped.

3. The electroslag remelting furnace for effectively improving component segregation according to claim 2, characterized in that: The gear (503) is fixedly connected to a rotating shaft (502), and a drive motor (501) is fixedly connected to the bottom end of the rotating shaft (502). The bottom of the drive motor (501) is fixedly connected to the inner wall of the annular seat, and the bottom of the annular seat is fixedly connected to the top of the bottom water tank (1).

4. The electroslag remelting furnace for effectively improving component segregation according to claim 3, characterized in that: The bottom side of the cooling chamber (4) is connected to a water inlet pipe, the top side of the cooling chamber (4) is connected to a water outlet pipe, and the bottom water tank (1) and the bottom side of the cooling chamber (4) are connected to a waste discharge pipe.

5. An electroslag remelting furnace for effectively improving component segregation according to claim 4, characterized in that: The auxiliary sealing assembly (7) includes a top seat (701), the top of which is fixedly connected to the top of the protective cover (6), and a cavity (702) is provided inside the top seat (701), with a positive and negative screw (703) provided on one side inside the cavity (702).

6. An electroslag remelting furnace for effectively improving component segregation according to claim 5, characterized in that: The positive and negative lead screws (703) are rotatably connected inside the top seat (701), and one end of the positive and negative lead screws (703) extends to the outside of the top seat (701) and is fixedly connected to a hand crank (704).

7. An electroslag remelting furnace for effectively improving component segregation according to claim 6, characterized in that: The threads on both sides of the positive and negative lead screw (703) are arranged in opposite directions, and two threaded sleeves (705) are threadedly connected to the positive and negative lead screw (703). An arc-shaped block (706) is fixedly connected to one side of the threaded sleeve (705). The arc-shaped block (706) is slidably sealed inside the cavity (702), and a sealing layer (707) is fixedly connected to the inner circumference of the arc-shaped block (706).

8. An electroslag remelting furnace for effectively improving component segregation according to claim 7, characterized in that: The top seat (701) has a through hole at its center, which is connected to the cavity (702). A dummy electrode (8) is provided inside the through hole, and a consumable electrode (9) is provided at the bottom of the dummy electrode (8). The consumable electrode (9) is located inside the inner shell (2) of the crystallizer.

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