Electric arc furnace for steelmaking

Abstract

The utility model relates to the technical field of steelmaking equipment, in particular to an electric arc furnace for steelmaking, which comprises a bottom plate, an electric arc furnace is arranged at the top of the bottom plate, linear modules are fixedly connected to the left side and the right side, close to the electric arc furnace, of the bottom plate, vertical rods are fixedly connected to the output ends of the linear modules, and baffles are fixedly connected to the tops of the vertical rods. The bottom of the baffle is fixedly connected with a collecting plate, and the edge of the collecting plate is fixedly connected with a side plate. Compared with the prior art, the electric arc furnace has the advantages that when the electrode is electrified to smelt steel, the linear module is started, the linear module can move the vertical rod at the output end and the baffles to the position close to the electric arc furnace, the two baffles can wrap the periphery of the top of the electric arc furnace, sparks are effectively prevented from splashing outwards, and the purpose of protecting workers is achieved; and the sparks splashing outwards fall into the top of the collecting plate after being cooled, the collecting plate can collect scraps generated after the sparks are cooled, and the purpose of conveniently collecting the spark scraps is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking equipment, in particular to an electric arc furnace for steelmaking. Background Art

[0002] Electric arc furnaces are mostly used in steelmaking, which have the advantages of short process, high efficiency and environmental protection. During the steelmaking process in the electric arc furnace, the compressed scrap steel piles need to be transported to the electric arc furnace through a pusher based on a horizontal feeding device. The high temperature generated by the electrode arc melts the scrap steel to form molten scrap steel, and the arc zone temperature can reach three thousand degrees Celsius.

[0003] Existing electric arc furnaces generate a large amount of sparks when heating scrap steel through electrodes. The sparks will fly outward from the gap between the top cover and the furnace body, causing burns to the workers. In addition, the heating will produce a large amount of smoke, which will reduce the air quality in the working environment and cause respiratory damage to the workers. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide an electric arc furnace for steelmaking.

[0006] The purpose of the utility model is achieved through the following technical solutions: an electric arc furnace for steelmaking, comprising a bottom plate, an electric arc furnace is arranged on the top of the bottom plate, both sides of the bottom plate close to the electric arc furnace are fixedly connected with linear modules, the output end of the linear module is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a collecting plate, and the edge of the collecting plate is fixedly connected with a side plate;

[0007] The baffle is provided with through grooves on both sides near the top, a card frame is clamped inside the through groove, a collecting bucket is fixedly connected to one side of the card frame, an exhaust pipe is fixedly connected to the end of the collecting bucket, and mounting plates are fixedly connected to the left and right sides of the collecting bucket.

[0008] Preferably, the bottom plate is fixedly connected to a fixing platform on one side close to the electric arc furnace, a hydraulic rod is arranged inside the fixing platform, the output end of the hydraulic rod is fixedly connected to a connecting frame, the end of the connecting frame is fixedly connected to a furnace cover, and an electrode is inserted at the center of the furnace cover.

[0009] By adopting the above technical solution, the electrodes inserted into the electric arc furnace can melt the scrap steel inside.

[0010] Preferably, the number of the linear modules is two, and the two linear modules are respectively located on the left and right sides of the electric arc furnace, and the linear modules are embedded inside the bottom plate.

[0011] By adopting the above technical solution, the linear module can adjust the position of the baffle at the top of the vertical rod.

[0012] Preferably, the baffle is an arc-shaped plate, the inner diameter of the baffle is larger than the outer diameter of the electric arc furnace, the baffle is welded to the top of the vertical rod close to the electric arc furnace, and the position of the baffle corresponds to the position of the top of the electric arc furnace.

[0013] By adopting the above technical solution, two baffles can wrap around the top of the electric arc furnace to effectively prevent sparks from flying outward.

[0014] Preferably, the collecting plate is an arc-shaped plate, the outer diameter of the collecting plate is the same as the inner diameter of the baffle, the inner diameter of the collecting plate is matched with the outer diameter of the electric arc furnace, and the side plate is welded to the edge of the inner diameter of the collecting plate.

[0015] By adopting the above technical solution, the collection plate can collect the debris generated after the spark is cooled.

[0016] Preferably, the card frame is matched with the through slot, the internal thread of the mounting plate is connected with a screw, and the mounting plate is connected to the baffle as a whole through the screw.

[0017] By adopting the above technical solution, the setting of the card frame can quickly connect the collecting bucket with the baffle.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The electric arc furnace for steelmaking is provided with a baffle, the output end of the linear module is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a collecting plate, and the edge of the collecting plate is fixedly connected with a side plate. When the electrode is energized to melt steel, the linear module is started, and the linear module can move the vertical rod at the output end together with the baffle to the vicinity of the electric arc furnace. The two baffles can wrap around the top of the electric arc furnace to effectively prevent sparks from splashing outwards, thereby protecting the staff. The sparks splashing outwards fall into the top of the collecting plate after cooling, and the collecting plate can collect the debris generated after the sparks are cooled, thereby facilitating the collection of spark debris;

[0020] 2. The electric arc furnace for steelmaking is provided with a collecting bucket, one side of the card frame is fixedly connected with the collecting bucket, and the end of the collecting bucket is fixedly connected with an exhaust pipe. When in use, the card frame at one end of the collecting bucket can be inserted into the through groove on the top of the baffle, and the mounting plate and the baffle are connected as a whole by screws. The negative pressure fan at the other end of the exhaust pipe is started to collect the smoke generated by steelmaking. The four collecting buckets inside the two baffles can collect smoke from four directions, so that the smoke extraction effect is better, and the smoke pollution of the working environment is avoided, so as to achieve the purpose of protecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the linear module of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the baffle of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the collecting bucket of the utility model.

[0025] In the figure: 1-bottom plate, 2-arc furnace, 3-linear module, 4-vertical rod, 5-baffle, 6-collecting plate, 7-side plate, 8-through slot, 9-card frame, 10-collecting bucket, 11-exhaust pipe, 12-mounting plate, 13-fixed platform, 14-hydraulic rod, 15-connecting frame, 16-furnace cover, 17-electrode. DETAILED DESCRIPTION

[0026] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0027] like Figure 1-3 As shown, an electric arc furnace for steelmaking includes a bottom plate 1, an electric arc furnace 2 is placed on the top of the bottom plate 1, linear modules 3 are embedded on both sides of the bottom plate 1 close to the electric arc furnace 2, a vertical rod 4 is welded to the output end of the linear module 3, a baffle 5 is welded to the top of the vertical rod 4, a collecting plate 6 is welded to the bottom of the baffle 5, and a side plate 7 is welded to the edge of the collecting plate 6.

[0028] Through the above arrangement, when the electrode 17 is powered on to melt steel, the linear module 3 is started, and the linear module 3 can move the vertical rod 4 at the output end together with the baffle 5 to the vicinity of the arc furnace 2. The two baffles 5 can wrap around the top of the arc furnace 2 to effectively prevent sparks from splashing outward, thereby protecting the staff. The sparks splashing outward cool down and fall into the top of the collecting plate 6. The collecting plate 6 can collect the debris generated after the sparks cool down, thereby facilitating the collection of spark debris.

[0029] like Figure 1 and Figure 3-4 As shown, the baffle 5 is provided with through grooves 8 on both sides near the top, a clamping frame 9 is clamped inside the through groove 8, a collecting bucket 10 is welded to one side of the clamping frame 9, an end pipe of the collecting bucket 10 is connected to an exhaust pipe 11, and mounting plates 12 are welded to both sides of the collecting bucket 10;

[0030] Through the above arrangement, when in use, the card frame 9 at one end of the collecting bucket 10 can be inserted into the through slot 8 at the top of the baffle 5, the mounting plate 12 is connected to the baffle 5 as a whole by screws, and the negative pressure fan at the other end of the exhaust pipe 11 is started to collect the fume generated by steelmaking. The four collecting buckets 10 inside the two baffles 5 can collect fume from four directions, so that the fume extraction effect is better, and the fume pollution of the working environment is avoided, so as to achieve the purpose of protecting the working environment;

[0031] As a preferred technical solution of the utility model, a fixing platform 13 is fixedly connected to one side of the bottom plate 1 close to the electric arc furnace 2, a hydraulic rod 14 is arranged inside the fixing platform 13, a connecting frame 15 is fixedly connected to the output end of the hydraulic rod 14, a furnace cover 16 is fixedly connected to the end of the connecting frame 15, and an electrode 17 is inserted at the center of the furnace cover 16.

[0032] As a preferred technical solution of the present invention, there are two linear modules 3 , which are respectively located on the left and right sides of the electric arc furnace 2 , and the linear modules 3 are embedded inside the bottom plate 1 .

[0033] As a preferred technical solution of the utility model, the baffle 5 is an arc-shaped plate, the inner diameter of the baffle 5 is larger than the outer diameter of the arc furnace 2, the baffle 5 is welded to the top of the vertical rod 4 close to the side of the arc furnace 2, and the position of the baffle 5 corresponds to the position of the top of the arc furnace 2.

[0034] As a preferred technical solution of the utility model, the collecting plate 6 is an arc-shaped plate, the outer diameter of the collecting plate 6 is the same as the inner diameter of the baffle 5, the inner diameter of the collecting plate 6 is adapted to the outer diameter of the electric arc furnace 2, and the side plate 7 is welded to the edge of the inner diameter of the collecting plate 6.

[0035] As a preferred technical solution of the utility model, the clamping frame 9 is matched with the through slot 8, the internal thread of the mounting plate 12 is connected with screws, and the mounting plate 12 is connected to the baffle 5 as a whole through the screws.

[0036] The working process of the utility model is as follows:

[0037] S1, start the linear module 3, the linear module 3 can move the vertical rod 4 at the output end together with the baffle 5 to the vicinity of the electric arc furnace 2, and the two baffles 5 can wrap around the top of the electric arc furnace 2 to effectively prevent sparks from splashing outwards, thereby protecting the staff;

[0038] S2, the sparks flying outwards cool down and fall onto the top of the collecting plate 6, and the collecting plate 6 can collect the debris generated after the sparks cool down;

[0039] S3. Insert the card frame 9 at one end of the collecting bucket 10 into the through groove 8 at the top of the baffle 5, connect the mounting plate 12 and the baffle 5 as a whole by screws, and start the negative pressure fan at the other end of the exhaust pipe 11 to collect the fume generated by steelmaking.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric arc furnace for steelmaking, characterized in that: The invention comprises a bottom plate (1), an electric arc furnace (2) is arranged on the top of the bottom plate (1), a linear module (3) is fixedly connected to both left and right sides of the bottom plate (1) close to the electric arc furnace (2), a vertical rod (4) is fixedly connected to the output end of the linear module (3), a baffle (5) is fixedly connected to the top of the vertical rod (4), a collecting plate (6) is fixedly connected to the bottom of the baffle (5), and a side plate (7) is fixedly connected to the edge of the collecting plate (6); The baffle (5) is provided with through grooves (8) on both left and right sides near the top, a clamping frame (9) is clamped inside the through groove (8), a collecting bucket (10) is fixedly connected to one side of the clamping frame (9), an exhaust pipe (11) is fixedly connected to the end of the collecting bucket (10), and a mounting plate (12) is fixedly connected to the left and right sides of the collecting bucket (10).

2. The electric arc furnace for steelmaking according to claim 1, characterized in that: A fixing platform (13) is fixedly connected to one side of the bottom plate (1) close to the electric arc furnace (2); a hydraulic rod (14) is arranged inside the fixing platform (13); an output end of the hydraulic rod (14) is fixedly connected to a connecting frame (15); an end of the connecting frame (15) is fixedly connected to a furnace cover (16); and an electrode (17) is inserted at the center of the furnace cover (16).

3. The electric arc furnace for steelmaking according to claim 1, characterized in that: The number of the linear modules (3) is two, and the two linear modules (3) are respectively located on the left and right sides of the electric arc furnace (2), and the linear modules (3) are embedded in the interior of the base plate (1).

4. The electric arc furnace for steelmaking according to claim 1, characterized in that: The baffle (5) is an arc-shaped plate, the inner diameter of the baffle (5) is larger than the outer diameter of the electric arc furnace (2), the baffle (5) is welded to the top of the vertical rod (4) close to the electric arc furnace (2), and the position of the baffle (5) corresponds to the position of the top of the electric arc furnace (2).

5. The electric arc furnace for steelmaking according to claim 1, characterized in that: The collecting plate (6) is an arc-shaped plate, the outer diameter of the collecting plate (6) is the same as the inner diameter of the baffle (5), the inner diameter of the collecting plate (6) is compatible with the outer diameter of the electric arc furnace (2), and the side plate (7) is welded to the inner edge of the collecting plate (6).

6. The electric arc furnace for steelmaking according to claim 1, characterized in that: The clamping frame (9) is matched with the through slot (8), the internal threads of the mounting plate (12) are connected with screws, and the mounting plate (12) is connected to the baffle (5) via the screws.

Images