Furnace tilting mechanism for electric arc furnace

Abstract

The utility model provides a furnace tilting mechanism for an electric arc furnace, which comprises a base and a furnace body second electric push rod, the outer wall of the furnace body is fixedly connected with a discharge pipe, the top of the base is provided with a furnace groove, the bottom of the furnace body is fixedly connected with a gear, and the outer wall of the base is fixedly connected with a pressure sensor. A working groove is formed in the base, and the inner wall of the working groove is fixedly connected with a first electric push rod. Through the arranged furnace body, a discharging pipe, a pressure sensor, a second electric push rod and a limiting clamping plate, when the furnace body is excessively inclined due to failure of the first electric push rod, the discharging pipe can press the pressure sensor, and the second electric push rod can drive a lifting plate to move upwards when receiving a signal of the pressure sensor, so that the limiting clamping plate extends into a limiting clamping groove; and the tooth plate is limited by the limiting clamping plate and cannot continuously move, so that the furnace body cannot continuously incline.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tilting mechanism for electric arc furnace belongs to electric arc furnace field. BACKGROUND

[0002] ‌Electric arc furnace is a kind of electric furnace that uses the high temperature generated by electrode arc to smelt ore and metal, is suitable for the smelting of high-quality alloy steel, can effectively remove impurities such as sulfur and phosphorus, electric arc furnace is composed of furnace body, electrode holder and lifting device, electrode, tilting mechanism and other structures, when working, workers only need to control electrode holder and lifting device to put electrode into the hole in the top of the furnace, heat is generated by the arc between electrode and furnace charge, after the internal metal refining is completed, the telescopic cylinder drives the push rod to make the furnace body tilt, so that the metal liquid can be poured into the mold, after cooling and setting, the metal embryo is ready.

[0003] But the existing tilting mechanism for electric arc furnace on the market at present is through artificial control telescopic cylinder, makes telescopic cylinder drive push rod movement to make electric arc furnace dump, and then the device cannot automatically stop the electric arc furnace from dumping, and when the telescopic cylinder fails, it will cause great safety hazard, reduces safety. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a tilting mechanism for electric arc furnace to solve the problems in the background art, which can automatically stop the furnace body from dumping, greatly reduce the safety hazard and improve the safety.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a tilting mechanism for electric arc furnace, including base, furnace body second electric push rod, the outer wall of the furnace body is fixedly connected with discharge pipe, the top of the base is provided with furnace groove, the bottom of the furnace body is fixedly connected with gear, the outer wall of the base is fixedly connected with pressure sensor.

[0006] The inside of the base is provided with working groove, the inner wall of the working groove is fixedly connected with first electric push rod, one end of the first electric push rod is fixedly connected with toothed plate, the bottom of the toothed plate is provided with limit clamping groove, the inside of the base is provided with brake groove, the top of the second electric push rod is fixedly connected with lifting plate, the top of the lifting plate is provided with limit clamping plate.

[0007] Further, the inner wall of the furnace groove is provided with slide, the outer wall of the furnace body is fixedly connected with supporting sliding block, the supporting sliding block is connected with slide in sliding mode, the bottom of the furnace body is arc surface, when the furnace body rotates, the supporting sliding block slides in the inside of slide, the supporting sliding block can play the role of support, so that the outer wall of the furnace body and the inner wall of the furnace groove have a certain space, the gear teeth will not rub with the furnace groove.

[0008] Further, the gear is a "half circle" structure, the inner top wall of the working groove is provided with a channel, the tooth plate is connected with the gear in meshing, thereby starting the first electric push rod, one end of the first electric push rod drives the tooth plate to move, thereby the tooth plate can drive the furnace body to tilt through the gear, and the liquid in the furnace body can be discharged through the discharge pipe.

[0009] Further, one side of the tooth plate is provided with a limiting groove, the inner wall of the working groove is fixedly connected with a limiting sliding plate, the limiting sliding plate is slidably connected with the limiting groove, the tooth plate can move on the limiting sliding plate, the limiting sliding plate can support the tooth plate to a certain extent, reduce the supporting force of the first electric push rod downward, and protect the push shaft of the first electric push rod to a certain extent.

[0010] Further, the bottom of the second electric push rod is fixedly connected to the inner bottom wall of the brake groove, and the top of the furnace body is provided with a furnace cover, the second electric push rod drives the lifting plate to move upward when receiving the signal of the pressure sensor.

[0011] Further, the inner top wall of the brake groove is provided with a through groove, and the lifting plate is slidably connected with the through groove, the lifting plate moves upward to extend the limiting clamping plate into the limiting clamping groove, and since the number of limiting parts and limiting clamping grooves is multiple, no matter the position of the tooth plate, there is always a corresponding limiting clamping plate clamped in the limiting clamping groove.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. When the first electric push rod fails to cause the furnace body to tilt excessively, the discharge pipe presses the pressure sensor, the second electric push rod drives the lifting plate to move upward when receiving the signal of the pressure sensor, the limiting clamping plate extends into the limiting clamping groove, the tooth plate cannot continue to move due to the limiting of the limiting clamping plate, the furnace body cannot continue to tilt, the automatic stopping of the furnace body from tilting is realized, the safety hazard is greatly reduced, and the safety is improved.

[0014] 2. The tooth plate can move on the limiting sliding plate, the limiting sliding plate can support the tooth plate to a certain extent, reduce the supporting force of the first electric push rod downward, and protect the push shaft of the first electric push rod to a certain extent, thereby further meeting the use requirement of the device, and thus it is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings:

[0016] Figure 1 It is a structural schematic view of the tilting mechanism for electric arc furnace of the present application;

[0017] Figure 2 It is a schematic view of the toothed plate in the tilting mechanism for electric arc furnace of the present application;

[0018] Figure 3 It is an enlarged view of the structure at A in the present application; Figure 1

[0019] In the figure: 1, base; 2, furnace channel; 3, slide; 4, supporting sliding block; 5, furnace body; 6, discharge pipe; 7, pressure sensor; 8, gear; 9, passage; 10, first electric push rod; 11, toothed plate; 12, limiting slide; 13, limiting groove; 14, second electric push rod; 15, lifting plate; 16, through groove; 17, limiting clamping plate; 18, limiting clamping groove; 19, working groove; 20, brake groove; 21, furnace cover. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figure 1 and Figure 3 The present application provides a technical solution: a tilting mechanism for electric arc furnace, comprising a base 1, a furnace body 5, a second electric push rod 14, an outer wall of the furnace body 5 is fixedly connected with a discharge pipe 6, a furnace channel 2 is formed in the top of the base 1, a gear 8 is fixedly connected to the bottom of the furnace body 5, a pressure sensor 7 is fixedly connected to the outer wall of the base 1, the pressure sensor 7 is a mature device on the market at present, which is an existing device, the model thereof is FP110, the principle of the pressure sensor 7 is that its resistance will change when subjected to mechanical stress, and this change is converted into an electrical signal output through a bridge circuit, the bridge circuit of the pressure sensor 7 is in communication with the circuit system of the second electric push rod 14, the pressure sensor 7 will send a signal to the second electric push rod 14 after receiving mechanical force, so that the second electric push rod 14 is started and its one end is pushed upward.

[0022] ​The inner part of the base 1 is provided with a working groove 19, and the inner wall of the working groove 19 is fixedly connected with a first electric push rod 10. One end of the first electric push rod 10 is fixedly connected with a toothed plate 11. The bottom of the toothed plate 11 is provided with a limiting clamping groove 18. The inner part of the base 1 is provided with a brake groove 20. The top of the second electric push rod 14 is fixedly connected with a lifting plate 15. The top of the lifting plate 15 is provided with a limiting clamping plate 17. The number of the limiting clamping plate 17 and the limiting clamping groove 18 is multiple.

[0023] The inner wall of the furnace groove 2 is provided with a slide 3. The outer wall of the furnace body 5 is fixedly connected with a supporting sliding block 4. The supporting sliding block 4 is in sliding connection with the slide 3. The bottom of the furnace body 5 is an arc surface. When the furnace body 5 rotates, the supporting sliding block 4 slides in the slide 3. The supporting sliding block 4 can play a supporting role, so that the outer wall of the furnace body 5 has a certain space with the inner wall of the furnace groove 2. The teeth of the gear 8 will not rub with the furnace groove 2.

[0024] The gear 8 is a "half circle" structure. The inner top wall of the working groove 19 is provided with a channel 9. The toothed plate 11 is in meshing connection with the gear 8. Then the first electric push rod 10 is started. One end of the first electric push rod 10 drives the toothed plate 11 to move. Then the toothed plate 11 can drive the furnace body 5 to tilt through the gear 8. The liquid in the furnace body 5 can be discharged through the discharge pipe 6.

[0025] One side of the toothed plate 11 is provided with a limiting groove 13. The inner wall of the working groove 19 is fixedly connected with a limiting sliding plate 12. The limiting sliding plate 12 is in sliding sleeve connection with the limiting groove 13. The toothed plate 11 can move on the limiting sliding plate 12. The limiting sliding plate 12 can play a certain supporting role on the toothed plate 11, reduce the supporting force of the first electric push rod 10 downward, and play a certain protection role on the push shaft of the first electric push rod 10.

[0026] The bottom of the second electric push rod 14 is fixedly connected to the inner bottom wall of the brake groove 20. The top of the furnace body 5 is provided with a furnace cover 21. When the second electric push rod 14 receives the signal of the pressure sensor 7, it drives the lifting plate 15 to move upward.

[0027] The inner top wall of the brake groove 20 is provided with a through groove 16. The lifting plate 15 is in sliding sleeve connection with the through groove 16. The upward movement of the lifting plate 15 can make the limiting clamping plate 17 extend into the limiting clamping groove 18. Because the number of the limiting parts and the limiting clamping groove 18 is multiple, no matter the position of the toothed plate 11 moves, there is always a corresponding limiting clamping plate 17 clamped in the limiting clamping groove 18.

[0028] Working principle: first, start the first electric push rod 10. One end of the first electric push rod 10 drives the toothed plate 11 to move. Then the toothed plate 11 can drive the furnace body 5 to tilt through the gear 8. The liquid in the furnace body 5 can be discharged through the discharge pipe 6.

[0029] Secondly, when the first electric push rod 10 fails to cause the furnace body 5 to tilt excessively, the discharge pipe 6 will press the pressure sensor 7, and the pressure sensor 7 will send a signal to the second electric push rod 14 after receiving the mechanical force, so that the second electric push rod 14 starts, and one end of the second electric push rod 14 drives the lifting plate 15 to move upwards, and the upward movement of the lifting plate 15 can make the limiting clamping plate 17 extend into the limiting clamping groove 18, and since the number of limiting parts and limiting clamping grooves 18 is multiple, no matter the position of the toothed plate 11 moves, there will always be a corresponding limiting clamping plate 17 clamped in the limiting clamping groove 18.

[0030] Finally, the toothed plate 11 cannot continue to move due to the limiting of the limiting clamping plate 17, so that the furnace body 5 cannot continue to tilt, thereby realizing the automatic stopping of the furnace body 5 from tilting.

[0031] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A tilting mechanism for electric arc furnace comprising a base (1), a furnace body (5), a second electric push rod (14), characterized in that: The outer wall of the furnace body (5) is fixedly connected with a discharge pipe (6), the top of the base (1) is provided with a furnace groove (2), the bottom of the furnace body (5) is fixedly connected with a gear (8), and the outer wall of the base (1) is fixedly connected with a pressure sensor (7). The inside of the base (1) is provided with a working groove (19), the inner wall of the working groove (19) is fixedly connected with a first electric push rod (10), one end of the first electric push rod (10) is fixedly connected with a toothed plate (11), the bottom of the toothed plate (11) is provided with a limiting clamping groove (18), the inside of the base (1) is provided with a brake groove (20), the top of the second electric push rod (14) is fixedly connected with a lifting plate (15), and the top of the lifting plate (15) is provided with a limiting clamping plate (17).

2. A tilting mechanism for an electric arc furnace according to claim 1, characterized in that: The inner wall of the furnace groove (2) is provided with a slide (3), and the outer wall of the furnace body (5) is fixedly connected with a supporting sliding block (4).

3. A tilting mechanism for an electric arc furnace according to claim 1, characterized in that: The gear (8) is a "semicircle" structure, the inner top wall of the working groove (19) is provided with a channel (9), and the toothed plate (11) is in meshing connection with the gear (8).

4. A tilting mechanism for an electric arc furnace according to claim 1, characterized in that: The side of the toothed plate (11) is provided with a limiting groove (13), the inner wall of the working groove (19) is fixedly connected with a limiting sliding plate (12), and the limiting sliding plate (12) is in sliding sleeve connection with the limiting groove (13).

5. A tilting mechanism for an electric arc furnace according to claim 1, characterized in that: The bottom of the second electric push rod (14) is fixedly connected to the inner bottom wall of the brake groove (20), and the top of the furnace body (5) is provided with a furnace cover (21).

6. A tilting mechanism for an electric arc furnace according to claim 1, characterized in that: The inner top wall of the brake groove (20) is provided with a through groove (16), and the lifting plate (15) is in sliding sleeve connection with the through groove (16).

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