Electric furnace steel scrap preheating device

Abstract

The utility model discloses an electric furnace steel scrap preheating device, and relates to the technical field of steel scrap processing. The preheating device comprises a preheating barrel, a heat conduction barrel is sleeved with the preheating barrel, a heating plate is connected to the inner side wall of the preheating barrel, a preheating assembly is arranged on the inner wall of the preheating barrel, a placement plate in the preheating assembly is connected to the side wall of the preheating barrel in a locked mode through bolts, and a rotating shaft is connected to the side wall of a motor connected to the outer side wall of the placement plate. The rotating shaft is rotationally connected with the middle of the placement plate, and steel bristles are connected to the peripheral side wall of a stirring rod connected to the peripheral side wall of the rotating shaft; and a slag discharging assembly arranged on the lower surface of the preheating barrel comprises a slag discharging hopper. According to the waste steel preheating device, the preheating assembly is arranged to stir waste steel in the heat conduction barrel, so that the waste steel is evenly heated, then the waste steel is evenly preheated, the preheating effect of the waste steel is improved, the slag discharging assembly is arranged, impurities in the slag discharging hopper are conveniently cleaned, meanwhile, the preheating assembly continues to conduct preheating treatment on the waste steel, and the preheating efficiency of the waste steel is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of scrap steel processing, in particular to an electric furnace scrap steel preheating device. Background Art

[0002] Steel refers to materials of a certain shape, size and performance made from steel ingots, billets or steel through pressure processing. A certain amount of scrap steel will be generated in the smelting production process of steel. In order to reduce the waste of steel, the scrap steel is collected and put into an electric furnace for heating and melting to obtain molten steel. Subsequently, the corresponding equipment is controlled to process the molten steel into steel to achieve the recycling of scrap steel. In order to improve the melting efficiency of scrap steel, it is necessary to control the preheating device for scrap steel in the electric furnace to preheat the scrap steel in advance. Subsequently, the preheated scrap steel is introduced into the electric furnace.

[0003] After searching, a patent document with patent announcement number CN216891070U discloses a high-temperature preheating device for scrap steel for electric furnace, including a device body, a driving roller installed at the top of the device body, and a wire brush arranged on the outer surface of the driving roller. The device body is provided with a driving roller, a wire brush, a filter plate, and a vibrator, so that the dust adsorbed on the surface of the scrap steel can be processed during preheating, so that during operation, the scrap steel falls into the device body through the feeding frame, and then falls through the filter plate under the action of the vibrator. During the falling process, the staff starts the driving motor, and then drives the driving roller to rotate under the action of the driving motor. Then, the wire brush on the surface of the driving roller cleans the dust on the surface of the scrap steel, and the cleaned dust is filtered out through the filter plate, and then falls into the collection box through the drop pipe for centralized processing. This method is simple to operate and convenient for processing scrap steel.

[0004] However, it still has the following disadvantages in actual use:

[0005] The existing high-temperature preheating device for scrap steel specially used for electric furnaces, during use, uses the cooperation of the sprocket, chain, driving roller, wire brush, filter plate and vibrator to transport the scrap steel entering the device body, and uses the wire brush to clean the debris on the scrap steel. However, the scrap steel is accumulated inside the device body, which is not conducive to the uniform heating of the scrap steel, thereby reducing the preheating effect of the scrap steel.

[0006] 2. The existing high-temperature preheating device for scrap steel specially used for electric furnaces collects the debris cleaned from the scrap steel through a collection box during use. However, when cleaning the debris inside the collection box, the collection box needs to be disassembled as a whole, and the existing high-temperature preheating device for scrap steel specially used for electric furnaces needs to be shut down, which makes it inconvenient to continuously preheat the scrap steel, thereby reducing the preheating efficiency of the scrap steel.

[0007] To this end, we provide an electric furnace scrap steel preheating device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide an electric furnace scrap steel preheating device, which solves the problems of poor preheating effect and low preheating efficiency of scrap steel in the existing electric furnace special scrap steel high-temperature preheating device by arranging a preheating component and a slag discharge component.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model discloses a scrap steel preheating device for an electric furnace, comprising a preheating barrel, a heat-conducting barrel is arranged inside the preheating barrel, a heating plate is connected to the inner wall of the preheating barrel, a preheating assembly is arranged on the inner wall of the preheating barrel, a placement plate in the preheating assembly is connected to the side wall of the preheating barrel by bolt locking, a rotating shaft is connected to the side wall of the motor connected to the outer wall of the placement plate, the rotating shaft is rotatably connected to the middle part of the placement plate, a stirring rod connected to the peripheral side wall of the rotating shaft is connected to the peripheral side wall of the stirring rod, and a filter is inlaid on the lower surface of the heat-conducting barrel. plate; the slag discharge assembly arranged on the lower surface of the preheating barrel includes a slag discharge bucket, the upper end of the slag discharge bucket passes through the preheating barrel and is connected with the side wall of the heat-conducting barrel, the mounting frames symmetrically arranged on both sides of the slag discharge bucket are connected to the lower surface of the preheating barrel, the blocking plate abutted on the lower surface of the slag discharge bucket abuts on the mounting frame, the lower surface of the blocking plate is symmetrically connected with guide rods, the guide rods are slidably connected with the guide grooves provided on the mounting frame, the end of the hydraulic cylinder connected to the lower surface of the mounting frame is connected with a hydraulic rod, and the connecting rod connected to the end of the hydraulic rod is connected to the end of the guide rod.

[0011] The utility model is further configured that a door panel is connected to the side wall of the preheating barrel via a hinge, the door panel is away from the placement plate, and the handle connected to the door panel is away from the hinge.

[0012] The utility model is further configured that a slide groove is provided in a ring array on the inner peripheral side wall of the preheating barrel, and the slide groove is slidably connected to a slide rod fixed on the outer peripheral side wall of the heat conduction barrel, and the slide rod and the slide groove are both T-shaped.

[0013] The utility model is further configured that the lower surface of the bracket connected to the lower surface of the preheating barrel is connected with a support foot, and the lower surface of the support foot is symmetrically connected with a self-locking universal wheel.

[0014] The utility model is further configured that the bracket is L-shaped, the bracket is provided with two groups, and the supporting legs are provided with two groups.

[0015] The utility model is further configured that the guide rod and the guide groove are both T-shaped, the placement frame is L-shaped, and the connecting rod is L-shaped.

[0016] The utility model is further configured that a feed assembly including a feed hopper is arranged on the preheating barrel, the lower end of the feed hopper passes through the preheating barrel and is connected with the heat-conducting barrel, and a handle is connected to a sealing cover connected to the feed hopper.

[0017] The utility model is further configured that the support connected to the lower surface of the feed hopper is connected to the preheating barrel, and the support is T-shaped.

[0018] The utility model has the following beneficial effects:

[0019] The utility model provides a preheating component, starts a motor to drive the rotating shaft to rotate, and the rotating rotating shaft drives the stirring rod to rotate and stir the scrap steel, so that the scrap steel is heated evenly, and the scrap steel is preheated evenly, thereby improving the preheating effect of the scrap steel, and the rotating stirring rod drives the steel brush bristles to rotate to clean up the debris on the scrap steel.

[0020] The utility model sets a slag discharge component, starts the hydraulic cylinder to extend the hydraulic rod, and the sealing plate gradually opens, and the debris inside the slag discharge bucket falls downward and is discharged by its own weight. When the hydraulic rod contracts, the sealing plate gradually closes, and in this process, the preheating component continues to preheat the scrap steel, thereby facilitating continuous preheating of the scrap steel and improving the preheating efficiency of the scrap steel.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 A schematic diagram of the structure of a scrap steel preheating device for an electric furnace Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of a scrap steel preheating device for an electric furnace Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the connection between the preheating barrel, the heat transfer barrel and the rotating shaft;

[0026] Figure 4 Schematic diagram of the structure of the slag discharge component Figure 1 ;

[0027] Figure 5 Schematic diagram of the structure of the slag discharge component Figure 2 .

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-preheating barrel, 101-bracket, 101a-supporting foot, 101b-self-locking universal wheel, 102-door panel, 102a-handle, 102b-hinge, 103-heating plate, 104a-slide, 2-feeding assembly, 201-feeding hopper, 201a-pillar, 202-sealing cover, 202a-handle, 3-preheating assembly, 301-placement plate, 301a-screw Bolt, 302-motor, 302a-rotating shaft, 302b-stirring rod, 302c-steel bristles, 303-heat conduction barrel, 303a-sliding rod, 303b-filter plate, 4-slag discharge assembly, 401-sealing plate, 401a-guide rod, 402-slag discharge bucket, 403-placing frame, 403a-guide groove, 404-hydraulic cylinder, 404a-hydraulic rod, 404b-connecting rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0031] See also Figure 1 , Figure 2 and Figure 3 The utility model is a scrap steel preheating device for an electric furnace, comprising a preheating barrel 1, a heat-conducting barrel 303 sleeved inside the preheating barrel 1 is provided with a preheating assembly 3 inside, the preheating assembly 3 comprises a placement plate 301, a motor 302, a rotating shaft 302a, a stirring rod 302b and steel bristles 302c, the stirring rod 302b is driven by the motor 302 to rotate and stir the scrap steel, thereby making the scrap steel evenly heated, which is beneficial to the uniform preheating of the scrap steel, and the rotating stirring rod 302b drives the steel bristles 302c to rotate, thereby cleaning the debris on the scrap steel;

[0032] Specifically, the inner peripheral side wall of the preheating barrel 1 is connected to the heating plate 103, and the inner peripheral side wall of the preheating barrel 1 is provided with a slide groove 104a in a ring array, and the outer peripheral side wall of the heat-conducting barrel 303 is connected to the slide rod 303a, and the slide rod 303a is slidably connected to the slide groove 104a. The placement plate 301 is locked and connected to the side wall of the preheating barrel 1 by bolts 301a, and the motor 302 is connected to the outer side wall of the placement plate 301. The side wall of the motor 302 is connected to a rotating shaft 302a, and the rotating shaft 302a is connected to the placement plate 301 is rotatably connected, and the rotating shaft 302a extends to the interior of the heat-conducting barrel 303, the stirring rod 302b is connected to the peripheral side wall of the rotating shaft 302a, and the peripheral side wall of the stirring rod 302b is connected with steel bristles 302c, and the lower part of the peripheral side wall of the heat-conducting barrel 303 is inlaid with a filter plate 303b, the preheating barrel 1 is connected to the door panel 102 through a hinge 102b, and the outer side wall of the door panel 102 is connected with a handle 102a, and the handle 102a is far away from the hinge 102b, and the preheating barrel 1 is provided with a pneumatic valve;

[0033] Further, the three heating plates 103 are arranged in a circular array, the three slide grooves 104a are opened in a circular array, the slide groove 104a is T-shaped, the three slide bars 303a are arranged in a circular array, the slide bar 303a is T-shaped, the four bolts 301a are arranged in a rectangular array, and the three hinges 102b are arranged at equal intervals;

[0034] The operation process of this embodiment is as follows: the staff starts the motor 302 and the heating plate 103, the heating plate 103 heats the inside of the preheating barrel 1, and then heats the heat-conducting barrel 303, and then preheats the scrap steel inside the heat-conducting barrel 303, the started motor 302 drives the rotating shaft 302a to rotate, the stirring rod 302b rotates to stir the scrap steel, so that the scrap steel is heated evenly, and then the scrap steel is evenly preheated, and the stirring rod 302b rotates to drive the steel bristles 302c to move, and then the debris on the scrap steel is cleaned, and the cleaned debris passes through the filter plate 303b and falls downward; when the staff opens the door panel 102, the preheating barrel 1 is tilted, so that the preheated scrap steel inside the heat-conducting barrel 303 is discharged. Specific embodiment 2

[0035] See also Figure 1 , Figure 4 and Figure 5 On the basis of the specific embodiment 1, a slag discharge component 4 is provided, which includes a blocking plate 401, a guide rod 401a, a slag discharge bucket 402, a placement frame 403, a guide groove 403a, a hydraulic cylinder 404, a hydraulic rod 404a and a connecting rod 404b. The position of the blocking plate 401 is adjusted by the cooperation of the hydraulic cylinder 404 and the hydraulic rod 404a, so as to remove the debris inside the slag discharge bucket 402 without closing the preheating component 3, so as to continuously preheat the scrap steel;

[0036] Specifically, the upper end of the slag discharge bucket 402 passes through the preheating barrel 1 and is connected to the lower part of the peripheral side wall of the heat-conducting barrel 303. The blocking plate 401 is disposed on the lower surface of the slag discharge bucket 402. The lower surface of the blocking plate 401 is connected with a guide rod 401a. The mounting frame 403 is connected to the lower surface of the preheating barrel 1. The mounting frame 403 is provided with a guide groove 403a. The guide rod 401a is slidably connected with the guide groove 403a. The hydraulic cylinder 404 is connected to the lower surface of the mounting frame 403. The end of the hydraulic cylinder 404 is connected with a hydraulic rod 404a. The end of the hydraulic rod 404a is connected with a connecting rod 404b. The connecting rod 404b is connected with the end of the guide rod 401a. The lower surface of the preheating barrel 1 is connected with a bracket 101. The lower surface of the bracket 101 is connected with a supporting foot 101a. The lower surface of the supporting foot 101a is connected with a self-locking universal wheel 101b.

[0037] Further, the two guide rods 401a are symmetrically arranged, and the guide rods 401a are T-shaped, the two mounting frames 403 are symmetrically arranged, and the mounting frames 403 are L-shaped, the guide grooves 403a are T-shaped, the connecting rods 404b are L-shaped, the brackets 101 are provided with two, and the brackets 101 are L-shaped, the legs 101a are provided with two groups, and each group of legs 101a is provided with two, and each group of legs 101a is symmetrically arranged;

[0038] The operation process of this embodiment is as follows: the debris passing through the filter plate 303b falls downward into the interior of the slag bucket 402; when it is necessary to clean the debris inside the slag bucket 402, the staff starts the hydraulic cylinder 404, the hydraulic rod 404a extends, the guide rod 401a slides along the guide groove 403a, the blocking plate 401 gradually opens, and the debris inside the slag bucket 402 falls downward into the interior of the external recycling box by its own gravity. During this process, the preheating component 3 continues to preheat the scrap steel inside the heat conduction barrel 303; conversely, when the hydraulic rod 404a contracts, the blocking plate 401 gradually closes. Specific embodiment three

[0039] See also Figure 1 On the basis of the specific embodiment 1 and the specific embodiment 2, a feeding assembly 2 is provided, which includes a feeding hopper 201, a support 201a, a sealing cover 202 and a handle 202a, so as to facilitate heating of the scrap steel inside the heat conduction barrel 303;

[0040] Specifically, the lower end of the feed hopper 201 passes through the preheating barrel 1 and is connected to the upper part of the peripheral side wall of the heat-conducting barrel 303. The support 201a connected to the lower surface of the feed hopper 201 is connected to the preheating barrel 1. The sealing cover 202 is connected to the feed hopper 201, and the sealing cover 202 is connected to a handle 202a.

[0041] Further, the pillars 201a are T-shaped, and the pillars 201a are arranged in a rectangular array;

[0042] The operation process of this embodiment is: the staff applies an upward external force to the handle 202a, removes the sealing cover 202 from the feed hopper 201, and introduces the scrap steel into the interior of the feed hopper 201. The scrap steel inside the feed hopper 201 flows downward into the interior of the heat transfer barrel 303 by its own weight.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electric furnace scrap steel preheating device, comprising a preheating barrel (1), wherein a heat-conducting barrel (303) is provided inside the preheating barrel (1), and a heating plate (103) is connected to the inner wall of the preheating barrel (1), characterized in that: The inner wall of the preheating barrel (1) is provided with a preheating component (3); a placement plate (301) in the preheating component (3) is locked and connected to the side wall of the preheating barrel (1) by means of bolts (301a); a rotating shaft (302a) is connected to the side wall of the motor (302) connected to the outer side wall of the placement plate (301); the rotating shaft (302a) is rotatably connected to the middle part of the placement plate (301); a stirring rod (302b) connected to the peripheral side wall of the rotating shaft (302a) is connected to the peripheral side wall of the stirring rod (302c); and a filter plate (303b) is inlaid on the lower surface of the heat-conducting barrel (303); The slag discharge assembly (4) arranged on the lower surface of the preheating barrel (1) comprises a slag discharge bucket (402), the upper end of the slag discharge bucket (402) passes through the preheating barrel (1) and is in communication with the side wall of the heat conduction barrel (303), the mounting frames (403) symmetrically arranged on both sides of the slag discharge bucket (402) are connected to the lower surface of the preheating barrel (1), the blocking plate (401) abutted against the lower surface of the slag discharge bucket (402) abuts against the mounting frame (403), the lower surface of the blocking plate (401) is symmetrically connected with guide rods (401a), the guide rods (401a) are slidably connected to guide grooves (403a) provided on the mounting frame (403), the end of a hydraulic cylinder (404) connected to the lower surface of the mounting frame (403) is connected to a hydraulic rod (404a), and the connecting rod (404b) connected to the end of the hydraulic rod (404a) is connected to the end of the guide rod (401a).

2. The electric furnace scrap steel preheating device according to claim 1, characterized in that: A door panel (102) is connected to the side wall of the preheating barrel (1) via a hinge (102b); the door panel (102) is away from the placement plate (301); and a handle (102a) connected to the door panel (102) is away from the hinge (102b).

3. The electric furnace scrap steel preheating device according to claim 2, characterized in that: The inner side wall of the preheating barrel (1) is provided with sliding grooves (104a) in a ring array, and the sliding grooves (104a) are slidably connected to the sliding rods (303a) fixed to the outer side wall of the heat-conducting barrel (303), and the sliding rods (303a) and the sliding grooves (104a) are both T-shaped.

4. The electric furnace scrap steel preheating device according to claim 3, characterized in that: The lower surface of the bracket (101) connected to the lower surface of the preheating barrel (1) is connected to a support foot (101a), and the lower surface of the support foot (101a) is symmetrically connected to a self-locking universal wheel (101b).

5. The electric furnace scrap steel preheating device according to claim 4, characterized in that: The bracket (101) is L-shaped, the bracket (101) is provided in two groups, and the supporting legs (101a) are provided in two groups.

6. The electric furnace scrap steel preheating device according to claim 1, characterized in that: The guide rod (401a) and the guide groove (403a) are both T-shaped, the placement frame (403) is L-shaped, and the connecting rod (404b) is L-shaped.

7. The electric furnace scrap steel preheating device according to claim 1, characterized in that: The preheating barrel (1) is provided with a feeding assembly (2) comprising a feeding hopper (201); the lower end of the feeding hopper (201) passes through the preheating barrel (1) and is connected to the heat-conducting barrel (303); and a sealing cover (202) connected to the feeding hopper (201) is connected to a handle (202a).

8. The electric furnace scrap steel preheating device according to claim 7, characterized in that: The support (201a) connected to the lower surface of the feed hopper (201) is connected to the preheating barrel (1), and the support (201a) is T-shaped.

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