Feeding device of horizontal feeding preheating electric furnace

Abstract

The utility model provides a feeding device of a horizontal feeding preheating electric furnace, a material groove structure comprises a material storage groove and a groove hopper, the groove hopper is connected to one axial end of the material storage groove, one end of the material storage groove connected with the groove hopper is provided with a material pouring port, the material storage groove is provided with a groove cavity used for storing waste steel, and the material pouring port is communicated with the groove cavity; the supporting structure comprises a plurality of moving wheels and supporting legs, the supporting legs are downwards arranged in a protruding mode from the bottom of the trough hopper, the moving wheels are symmetrically arranged on the two opposite side walls of the storage trough, and the lower edges of the moving wheels are lower than the bottom wall of the storage trough in the height direction and are flush with the lower edges of the supporting legs; the lifting structure comprises a first lifting lug assembly and a second lifting lug assembly which are used for being connected with a crown block lifting hook and are arranged on the side wall of the storage tank at intervals in the axial direction of the storage tank, and the crown block lifting hook drives the first lifting lug assembly and the second lifting lug assembly to move correspondingly to generate a height difference so that waste steel in a tank cavity can be poured out through a pouring opening. The problem that waste steel needs to be transferred and hoisted for multiple times from a waste steel warehouse to a waste steel batching room is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric furnace equipment, in particular to a feeding device for a horizontal charging and preheating electric furnace. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Electric furnace steelmaking is a steelmaking process that primarily uses scrap steel as raw material, eliminating the need for an ironmaking system. It's also known as the short-process steelmaking technology. Compared to the long blast furnace and converter process, the short-process EAF steelmaking process emits approximately 60% fewer pollutants, making it more environmentally friendly and a leading steelmaking process for policy development.

[0004] Currently, the horizontal continuous-feed preheating electric furnace has become the preferred furnace type for electric arc furnace steelmaking companies due to its low equipment failure rate and high production efficiency. Scrap is added to this type of furnace via a horizontal vibrating device. The horizontal vibrating device is divided into a charging section (uncovered) and a preheating section (covered). In the charging section, the scrap is currently attracted by the magnetic disks of a scrap overhead crane and fed into the horizontal vibrating device. Driven by the horizontal vibrations, the scrap then enters the preheating section. This charging method requires the construction of large scrap storage areas and workshops on both sides of the charging section. This requires the installation of numerous cranes equipped with electromagnetic disks within the workshops to ensure efficient scrap loading, which is detrimental to the overall layout.

[0005] In the prior art, there is a scheme of using a magnetic disk overhead crane adsorption method, that is, setting up an overhead crane in the factory area. The existing scrap steel needs to be lifted by a magnetic disk and placed in a storage area after being unloaded and graded in the scrap steel warehouse in the factory area. When the electric furnace is needed for production, the scrap steel needs to be reloaded by the magnetic disk crane into the scrap steel transport vehicle in the factory area and transported to the scrap steel batching room near the electric furnace workshop for storage. The magnetic disk crane in the scrap steel batching room is then used to lift the scrap steel and add it to the horizontal feeding section. Driven by horizontal vibration, the scrap steel enters the preheating section. The preheated scrap steel is then continuously added to the electric furnace in small batches for smelting. In this process, the scrap steel is transported many times, the feeding efficiency is low, and the operating cost is high. The scrap steel in the scrap steel warehouse still needs to be unloaded, stacked, loaded and horizontally fed into the scrap steel batching room. In addition, the amount of scrap steel adsorbed by the magnetic disk each time is too small due to the limitations of the magnetic disk size and the type of scrap steel. It is not suitable for quickly adding scrap steel that is far away from the feeding section to the horizontal feeding section. It must be transported by other overhead cranes. At the same time, a larger scrap steel batching room is required, and it must be arranged close to the main electric furnace steelmaking workshop, which is not conducive to the arrangement of the electric furnace's public auxiliary facilities, and the amount of scrap steel loaded into the horizontal feeding section cannot be measured.

[0006] It should be noted that the above technical background is merely for the purpose of providing a clear and complete description of the technical solutions of the present invention and to facilitate understanding by those skilled in the art. It should not be assumed that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present invention. Utility Model Content

[0007] The utility model aims to provide a loading device for a horizontal charging preheating electric furnace, which solves the problem that scrap steel needs to be transported and hoisted for multiple times from a scrap steel warehouse to a scrap steel batching room.

[0008] The above-mentioned implementation objectives of the present invention are mainly achieved by the following technical solutions:

[0009] The utility model provides a feeding device for a horizontal charging preheating electric furnace, comprising:

[0010] A trough structure, comprising a storage trough and a hopper, wherein the hopper is connected to one axial end of the storage trough, and a discharge port is provided at one end of the storage trough connected to the hopper. The storage trough has a trough cavity for storing scrap steel, and the discharge port is in communication with the trough cavity;

[0011] A support structure comprising a plurality of movable wheels and support legs, wherein the support legs protrude downward from the bottom of the trough, and the plurality of movable wheels are symmetrically arranged on opposite side walls of the storage trough, wherein the lower edges of the movable wheels are lower than the bottom wall of the storage trough in the height direction and are flush with the lower edges of the support legs;

[0012] The lifting structure includes a first lifting ear assembly and a second lifting ear assembly for connecting to the overhead crane hook, the first lifting ear assembly and the second lifting ear assembly are arranged on the side wall of the storage trough along the axial direction of the storage trough, and the overhead crane hook can drive the first lifting ear assembly and the second lifting ear assembly to move in the height direction respectively to produce a height difference, wherein, when the height of the trough bucket is lower than the height of the storage trough, the scrap steel in the trough cavity can be poured out through the pouring port.

[0013] In one embodiment,

[0014] The first lifting ear assembly includes two first lifting ears, which are symmetrically arranged on two opposite outer side walls of the storage trough, and the first lifting ears are arranged near an end of the storage trough away from the hopper;

[0015] The second lifting ear assembly includes two second lifting ears, which are symmetrically arranged on two opposite outer side walls of the storage trough, and the second lifting ear is arranged near one end of the storage trough connected to the hopper.

[0016] In one embodiment,

[0017] The support structure also includes a plurality of supporting beams, the inner surfaces of which are respectively fitted with the outer bottom wall and two opposite outer side walls of the storage trough, and the plurality of supporting beams are arranged at intervals along the axial direction of the storage trough, and the moving wheel, the first lifting ear and the second lifting ear are respectively connected to the outer side walls of the supporting beams.

[0018] In one embodiment,

[0019] The support structure also includes two first cross beams, which are symmetrically arranged on the opposite side walls of the storage trough. The inner surfaces of the first cross beams are fitly connected to the outer side walls of the storage trough. The first cross beams are extended along the axial direction of the storage trough and cross-connected with the support beams.

[0020] In one embodiment,

[0021] A hanging seat is formed at the position where the first cross beam and the supporting beam are cross-connected, wherein the two first lifting ears are respectively arranged on a pair of the hanging seats symmetrically arranged on the opposite side walls of the storage trough, and the two second lifting ears are respectively arranged on another pair of the hanging seats symmetrically arranged on the opposite side walls of the storage trough.

[0022] In one embodiment,

[0023] The support structure also includes two second cross beams, which are symmetrically arranged on the opposite side walls of the storage trough, and the inner surfaces of the second cross beams are fitly connected to the outer side walls of the storage trough. The second cross beams are extended along the axial direction of the storage trough and cross-connected with the support beam. The second cross beams are arranged below the first cross beam.

[0024] In one embodiment,

[0025] The thickness of the first crossbeam is the same as that of the second crossbeam, and the height of the first crossbeam in the height direction is more than twice the height of the second crossbeam in the height direction.

[0026] In one embodiment,

[0027] The first lifting lug and the moving wheel are connected to the same outer side wall of the same support beam, and the distance between the upper edge of the moving wheel and the first lifting lug forms a first distance, and / or the second lifting lug and the moving wheel are connected to the same outer side wall of the same support beam, and the distance between the upper edge of the moving wheel and the second lifting lug forms a second distance;

[0028] The first distance and the second distance are both greater than 800 mm.

[0029] In one embodiment,

[0030] The first lifting lug, the second lifting lug, and the moving wheel are respectively connected to the outer side walls of different support beams to form a first hook space for connecting the overhead traveling crane hook with the first lifting lug, and a second hook space for connecting the overhead traveling crane hook with the second lifting lug.

[0031] In one embodiment,

[0032] The support structure also includes a tow hook assembly for connecting to a tow hook of a trailer, the tow hook assembly having a fixed end and a connecting end, the fixed end being connected to the support leg, and the connecting end extending along the axial direction of the material storage trough in a direction away from the material storage trough for connecting to the tow hook.

[0033] Compared with the prior art, the technical solution described in this utility model has the following characteristics and advantages:

[0034] The loading device of the horizontal charging preheating electric furnace provided by the utility model adopts multiple moving wheels to be arranged at the bottom of the storage trough, so that the storage trough can be moved within the factory, which is convenient for driving the scrap steel in the storage trough to move freely within the factory. The loading device provided by the utility model can replace the scrap steel transfer vehicle in the factory to be responsible for transferring the graded scrap steel from the scrap steel warehouse to the scrap steel batching room of the electric furnace workshop.

[0035] The loading device of the horizontal charging preheating electric furnace provided by the utility model can stably support the trough structure on the ground through the supporting legs and multiple movable wheels of the supporting structure, and make the trough bucket and the storage trough of the trough structure at the same horizontal height, and prevent the scrap steel in the trough structure from pouring out from the trough bucket.

[0036] The loading device of the horizontal charging preheating electric furnace provided by the utility model can be connected to the double-hook lifting crane arranged in the scrap steel batching room or the overhead crane hook located above the horizontal charging preheating electric furnace through the first lifting ear assembly and the second lifting ear assembly arranged on the side wall of the storage trough. When the overhead crane hook lifts the first lifting ear assembly and the second lifting ear assembly to different heights, a height difference is generated between the first lifting ear assembly and the second lifting ear assembly in the height direction, that is, the height of the trough bucket is lifted to a height lower than the storage trough, so that the scrap steel in the storage trough is convenient to be poured out through the discharge port and the trough bucket.

[0037] The utility model provides a loading device for a horizontal charging preheating electric furnace, which directly charges the loading section of the horizontal charging preheating electric furnace, thereby solving the problem of multiple transfers and hoisting of scrap steel from the scrap steel storage to the scrap steel batching room. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is an implementation diagram of the unloading operation of the loading device of the horizontal charging preheating electric furnace of the utility model;

[0039] Figure 2 This is a structural diagram of the feeding device of the horizontal charging preheating electric furnace of the present utility model;

[0040] Figure 3 This is a front view of the loading device of the horizontal charging preheating electric furnace of the utility model;

[0041] Figure 4 This is a top view of the loading device of the horizontal charging preheating electric furnace of the present invention.

[0042] Description of Figure Numbers:

[0043] 100. Trough structure;

[0044] 110, storage trough; 111, pouring port; 112, trough cavity;

[0045] 120, trough;

[0046] 200, support structure;

[0047] 210. Moving wheels; 220. Support legs;

[0048] 230, supporting beam; 240, first crossbeam; 250, second crossbeam;

[0049] 260, hoisting seat;

[0050] 300. Hoisting structure;

[0051] 310. First lifting ear assembly; 311. First lifting ear; 312. First limiting structure;

[0052] 320. Second lifting ear assembly; 321. Second lifting ear; 322. Second limiting structure;

[0053] 400, overhead crane hook;

[0054] 500, tow hook assembly; 510, fixed end; 520, connecting end;

[0055] 600, trailer; 610, tow hook. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0057] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0059] like Figures 1 to 4 As shown, the utility model provides a feeding device for a horizontal charging preheating electric furnace, comprising:

[0060] The trough structure 100 includes a storage trough 110 and a hopper 120. The hopper 120 is connected to one axial end of the storage trough 110. A discharge port 111 is provided at one end of the storage trough 110 connected to the hopper 120. The storage trough 110 has a trough cavity 112 for storing scrap steel. The discharge port 111 is in communication with the trough cavity 112.

[0061] The support structure 200 includes a plurality of movable wheels 210 and support legs 220. The support legs 220 protrude downward from the bottom of the trough 120. The plurality of movable wheels 210 are symmetrically arranged on opposite side walls of the storage trough 110. The lower edges of the movable wheels 210 are lower than the bottom wall of the storage trough 110 in the height direction and are flush with the lower edges of the support legs 220.

[0062] The lifting structure 300 includes a first lifting ear assembly 310 and a second lifting ear assembly 320 for connecting to the overhead crane hook 400. The first lifting ear assembly 310 and the second lifting ear assembly 320 are arranged on the side wall of the storage trough 110 at an axial interval along the storage trough 110. The overhead crane hook 400 can drive the first lifting ear assembly 310 and the second lifting ear assembly 320 to move in the height direction respectively to produce a height difference. When the height of the trough 120 is lower than the height of the storage trough 110, the scrap steel in the trough cavity 112 can be poured out through the discharge port 111.

[0063] The loading device of the horizontal charging preheating electric furnace provided by the present invention adopts a plurality of moving wheels 210 to be arranged at the bottom of the storage trough 110, so that the storage trough 110 can be moved within the factory, which is convenient for driving the scrap steel in the storage trough 110 to move freely within the factory. The loading device provided by the present invention can replace the scrap steel transfer vehicle in the factory to be responsible for transferring the graded scrap steel from the scrap steel warehouse to the scrap steel batching room of the electric furnace workshop; the loading device of the horizontal charging preheating electric furnace provided by the present invention can stably support the trough structure 100 on the ground through the support legs 220 of the support structure 200 and the plurality of moving wheels 210, and make the trough hopper 120 of the trough structure 100 and the storage trough 110 at the same horizontal height, and make the scrap steel in the trough structure 100 not pour out from the trough hopper 120; the horizontal charging provided by the present invention The loading device of the preheating electric furnace can be connected to the double-hook lifting crane arranged in the scrap steel batching room or the overhead crane hook 400 located above the horizontal charging preheating electric furnace through the first lifting ear assembly 310 and the second lifting ear assembly 320 arranged on the side wall of the storage trough 110. When the overhead crane hook 400 lifts the first lifting ear assembly 310 and the second lifting ear assembly 320 to different heights, a height difference is generated between the first lifting ear assembly 310 and the second lifting ear assembly 320 in the height direction, that is, the height of the trough 120 is raised to a height lower than the storage trough 110, so that the scrap steel in the storage trough 110 is easily poured out through the discharge port 111 and the trough hopper 120; the loading section of the horizontal charging preheating electric furnace is directly charged by the loading device, which solves the problem that the scrap steel needs to be transferred and lifted and loaded multiple times from the scrap steel warehouse to the scrap steel batching room.

[0064] In a specific embodiment, the cross section of the storage trough 110 is generally U-shaped, and the opposite side walls of the storage trough 110 are respectively connected to the opposite side edges of the bottom wall of the storage trough 110 to form a structure with a U-shaped cross section. The axial direction of the storage trough 110 is arranged along the extension direction of the side edge of the bottom wall. The storage trough 110 has two opposite axial ends, one of which is provided with a slot plate. The bottom of the slot plate is connected to the bottom wall of the storage trough 110, and the top height of the slot plate is flush with the height of the two opposite side walls of the storage trough 110, so as to The trough cavity 112 of the storage trough 110 is blocked to prevent the scrap steel from falling out from the axial end. The other axial end of the storage trough 110 forms a pouring port 111, which is used to connect the trough cavity 112 of the storage trough 110 with the trough bucket 120, so as to facilitate the entry of the scrap steel into the trough bucket 120 from the pouring port 111. In this embodiment, the trough bucket 120 is arranged in a dustpan shape. In a specific embodiment, the lowest point of the dustpan-shaped trough bucket 120 is higher than the inner bottom surface of the storage trough 110 to prevent the material from overflowing from both sides during pouring, while increasing the loading volume of the trough.

[0065] Specifically in this embodiment, multiple moving wheels 210 are divided into groups of two, and the two moving wheels 210 in each group are respectively arranged on the opposite side walls of the storage trough 110, and the lower edge of each moving wheel 210 is lower than the bottom wall of the storage trough 110, so that the trough structure 100 can be moved in the factory area by the moving wheels 210. In this embodiment, the loading device has two groups of moving wheels 210. In other embodiments, there is no limit on the number of groups of moving wheels 210 that the loading device has; in this embodiment, the support legs 220 are arranged at the bottom of the dustpan-shaped trough 120. In one embodiment, the support legs 220 are rods extending in the vertical direction. In another embodiment, the support legs 220 can also be double-leg rods that are forked downward, and there is no specific limit on this; in this embodiment, the lower edges of the moving wheels 210 are flush with the lower edges of the support legs 220 in the height direction, which can avoid the uneven heights of the dustpan-shaped trough 120 and the storage trough 110, and thus avoid the risk of scrap steel easily falling out of the dustpan-shaped trough 120.

[0066] In this embodiment, the first lifting ear assembly 310 and the second lifting ear assembly 320 are arranged on the side wall of the storage trough 110 at intervals along the axial direction of the storage trough 110. In a specific embodiment, the first lifting ear assembly 310 has multiple first lifting ears 311, and the second lifting ear assembly 320 has multiple second lifting ears 321. There is no specific restriction on the number of first lifting ears 311 of the first lifting ear assembly 310 and the number of second lifting ears 321 of the second lifting ear assembly 320; in another specific embodiment, there is no restriction on the specific form of the first lifting ear assembly 310 and the specific form of the second lifting ear assembly 320.

[0067] like Figure 3 and Figure 4 As shown, in one embodiment,

[0068] The first lifting lug assembly 310 includes two first lifting lugs 311 symmetrically disposed on two opposite outer side walls of the storage trough 110 , with the first lifting lugs 311 disposed near an end of the storage trough 110 away from the hopper 120 ;

[0069] The second lifting ear assembly 320 includes two second lifting ears 321 , which are symmetrically arranged on two opposite outer side walls of the storage trough 110 . The second lifting ears 321 are arranged near one end of the storage trough 110 connected to the hopper 120 .

[0070] The loading device of the horizontal charging preheating electric furnace provided by the utility model has two lifting ears in each lifting ear assembly, so that the two overhead crane hooks 400 can be simultaneously hung on the two first lifting ears 311 symmetrically arranged on the two opposite outer walls of the storage trough 110, or the two overhead crane hooks 400 can be simultaneously hung on the two second lifting ears 321 symmetrically arranged on the two opposite outer walls of the storage trough 110, so that when lifting the loading device, the first lifting ear assembly 310 can be kept in balance with the two opposite outer walls of the storage trough 110, or the second lifting ear assembly 320 can be kept in balance with the two opposite outer walls of the storage trough 110, so as to avoid the trough structure 100 from tilting during the lifting process.

[0071] In a specific embodiment, the first lifting ear 311 is arranged along a horizontal plane and perpendicular to the outer wall of the storage trough 110, and the second lifting ear 321 is arranged along a horizontal plane and perpendicular to the outer wall of the storage trough 110. A first limiting structure 312 is provided at one end of the first lifting ear 311 away from the outer wall of the storage trough 110. The radial size of the first limiting structure 312 is larger than the radial size of the first lifting ear 311, which is used to prevent the overhead crane hook 400 from slipping off the first lifting ear 311. A second limiting structure 322 is provided at one end of the second lifting ear 321 away from the outer wall of the storage trough 110. The radial size of the second limiting structure 322 is larger than the radial size of the second lifting ear 321, which is used to prevent the overhead crane hook 400 from slipping off the second lifting ear 321.

[0072] like Figure 2 As shown, in one embodiment,

[0073] The support structure 200 also includes a plurality of support beams 230, the inner surfaces of the support beams 230 are respectively fitted with the outer bottom wall and the two opposite outer walls of the storage trough 110, and the plurality of support beams 230 are arranged at intervals along the axial direction of the storage trough 110, and the moving wheel 210, the first lifting ear 311 and the second lifting ear 321 are respectively connected to the outer walls of the support beams 230.

[0074] The loading device of the horizontal charging preheating electric furnace provided by the present invention can improve the structural rigidity of the storage trough 110 by setting the support beam 230, and increase the weight of the scrap steel that the storage trough 110 can accommodate. At the same time, it can also ensure that the structure of the storage trough 110 remains stable when the storage trough 110 is lifted by the overhead crane hook 400 or moved in the factory.

[0075] In a specific embodiment, the support beam 230 is generally U-shaped, the inner surface of the support beam 230 is welded to the outer wall of the storage trough 110, and the U-shaped support beam 230 is in contact with the outer wall of the storage trough 110 with a U-shaped cross-section. In a specific embodiment, the portion of the support beam 230 that is in contact with the outer wall of the storage trough 110 is arranged vertically, and the moving wheel 210 is arranged on the outer wall of the portion of the support beam 230 that is in contact with the outer wall of the storage trough 110. The first lifting ear 311 and the second lifting ear 321 are respectively arranged on the outer walls of the portions of multiple support beams 230 that are in contact with the outer wall of the storage trough 110; in a specific embodiment, the first lifting ear 311 and the second lifting ear 321 are respectively arranged on two different support beams 230. In one embodiment, the moving wheel 210 and the first lifting ear 311 can be arranged on the same support beam 230, or in another embodiment, the moving wheel 210 and the first lifting ear 311 can also be arranged on a different support beam 230, and / or, in another embodiment, the moving wheel 210 and the second lifting ear 321 can be arranged on the same support beam 230, or in another embodiment, the moving wheel 210 and the second lifting ear 321 can also be arranged on a different support beam 230.

[0076] like Figure 2 As shown, in one embodiment,

[0077] The support structure 200 also includes two first cross beams 240, which are symmetrically arranged on the opposite side walls of the storage trough 110. The inner surface of the first cross beam 240 is fitly connected to the outer wall of the storage trough 110. The first cross beam 240 is extended along the axial direction of the storage trough 110 and is cross-connected with the support beam 230.

[0078] The loading device of the horizontal charging preheating electric furnace provided by the present invention can further improve the structural rigidity of the storage trough 110 by setting the first crossbeam 240, further improve the upper limit of the weight of scrap steel that the storage trough 110 can accommodate, and at the same time, it can also make the structure of the storage trough 110 further maintain stability when the storage trough 110 is lifted by the overhead crane hook 400 or moved in the factory.

[0079] In a specific embodiment, the first crossbeam 240 is a straight beam, and the first crossbeam 240 is arranged on the outer side wall of the storage trough 110 along the axial extension of the storage trough 110. In a specific embodiment, the intersection of the first crossbeam 240 and the supporting beam 230 can be unchanged in thickness compared to the thickness of the first crossbeam 240 and the thickness of the supporting beam 230. In another embodiment, the intersection of the first crossbeam 240 and the supporting beam 230 can also be increased in thickness compared to the thickness of the first crossbeam 240 and the thickness of the supporting beam 230, so as to improve the structural rigidity and structural stability of the intersection.

[0080] like Figures 2 to 4 As shown, in one embodiment,

[0081] A lifting seat 260 is formed at the position where the first cross beam 240 and the supporting beam 230 are cross-connected, wherein the two first lifting ears 311 are respectively arranged on a pair of lifting seats 260 symmetrically arranged on the opposite side walls of the storage trough 110, and the two second lifting ears 321 are respectively arranged on another pair of lifting seats 260 symmetrically arranged on the opposite side walls of the storage trough 110.

[0082] The loading device of the horizontal charging preheating electric furnace provided by the utility model forms a lifting seat 260 at the intersection of the first crossbeam 240 and the supporting beam 230, and the first lifting ear 311 and the second lifting ear 321 are respectively installed on the lifting seat 260, so that the connection position of the first lifting ear 311 and the second lifting ear 321 and the storage trough 110 is at a position with greater rigidity of the storage trough 110, which can improve the structural stability of the trough structure 100 during the lifting process and avoid the first lifting ear 311 or the second lifting ear 321 from damaging the structure of the trough structure 100 during the lifting process.

[0083] In a specific embodiment, the thickness of the lifting seat 260 is greater than the thickness of the first crossbeam 240 and the thickness of the supporting beam 230. Multiple supporting beams 230 are arranged at intervals along the axial direction of the storage trough 110. The first crossbeam 240 and the supporting beam 230 intersect to form multiple lifting seats 260, and the two first crossbeams 240 and the supporting beam 230 symmetrically arranged on the opposite side walls of the storage trough 110 intersect to form two symmetrical lifting seats 260 on the opposite side walls of the storage trough 110. In a specific embodiment, the two first lifting ears 311 of the first lifting ear assembly 310 are respectively arranged on a group of two symmetrical lifting seats 260, and the two second lifting ears 321 of the second lifting ear assembly 320 are respectively arranged on another group of two symmetrical lifting seats 260.

[0084] like Figure 2 As shown, in one embodiment,

[0085] The support structure 200 also includes two second cross beams 250, which are symmetrically arranged on the opposite side walls of the storage trough 110. The inner surface of the second cross beam 250 is fitly connected to the outer wall of the storage trough 110. The second cross beam 250 is extended along the axial direction of the storage trough 110 and is cross-connected with the support beam 230. The second cross beam 250 is arranged below the first cross beam 240.

[0086] The loading device of the horizontal charging preheating electric furnace provided by the present invention can further improve the structural rigidity of the storage trough 110 by setting the second crossbeam 250, further improve the upper limit of the weight of scrap steel that the storage trough 110 can accommodate, and at the same time, it can also make the structure of the storage trough 110 further maintain stability when the storage trough 110 is lifted by the overhead crane hook 400 or moved in the factory.

[0087] In a specific embodiment, the second cross beam 250 is a straight beam, and the second cross beam 250 is arranged on the outer side wall of the storage trough 110 along the axial extension of the storage trough 110. In a specific embodiment, the intersection position of the second cross beam 250 and the support beam 230 can be unchanged compared to the thickness of the second cross beam 250 and the thickness of the support beam 230. In another embodiment, the intersection position of the second cross beam 250 and the support beam 230 can also be increased in thickness compared to the thickness of the second cross beam 250 and the thickness of the support beam 230, so as to improve the structural rigidity and structural stability of the intersection position.

[0088] like Figure 2 As shown, in one embodiment,

[0089] The thickness of the first beam 240 is the same as that of the second beam 250 , and the height of the first beam 240 in the height direction is more than twice the height of the second beam 250 in the height direction.

[0090] The loading device for the horizontal charging preheating electric furnace provided by the present invention can avoid the excessive weight of the beams, which causes the storage trough 110 to bear too much weight during the lifting process, by setting the size difference between the first beam 240 and the second beam 250, thereby simplifying the structure of the beams. At the same time, it can also improve the structural layout of the beams when dispersing stress, so that the structure of the storage trough 110 can be further maintained stable when the storage trough 110 is lifted by the overhead crane hook 400 or moved in the factory.

[0091] In a specific embodiment, the thickness of the first crossbeam 240 is set to be consistent with the thickness of the second crossbeam 250, so that the first crossbeam 240 and the second crossbeam 250 can bear the same stress in the structure, providing a stable structural stress layout for the storage tank 110; in another specific embodiment, the height of the first crossbeam 240 is twice the height of the second crossbeam 250, that is, the contact area between the first crossbeam 240 and the outer wall of the storage tank 110 is larger, which can disperse the stress more evenly. In this example, a lifting seat 260 is formed at the position where the first cross beam 240 and the supporting beam 230 are cross-connected, and the first lifting ear 311 and the second lifting ear 321 are respectively installed on the lifting seat 260, so that the main stress of the storage tank 110 during the lifting process is concentrated on the first cross beam 240. The heightened design of the first cross beam 240 disperses the stress concentration caused by the lifting, making the structure of the lifting seat 260 more stable, and can make the first lifting ear 311 and the second lifting ear 321 have less influence on the structural stress of the storage tank 110 during the lifting process.

[0092] like Figure 3 As shown, in one embodiment,

[0093] The first lifting lug 311 and the moving wheel 210 are connected to the same outer side wall of the same support beam 230, and the distance between the upper edge of the moving wheel 210 and the first lifting lug 311 forms a first distance, and / or the second lifting lug 321 and the moving wheel 210 are connected to the same outer side wall of the same support beam 230, and the distance between the upper edge of the moving wheel 210 and the second lifting lug 321 forms a second distance;

[0094] The first distance and the second distance are both greater than 800 mm.

[0095] The loading device of the horizontal charging preheating electric furnace provided by the present invention connects the first lifting ear 311 and the moving wheel 210 to the same outer side wall of the same support beam 230, and / or connects the second lifting ear 321 and the moving wheel 210 to the same outer side wall of the same support beam 230, and it is necessary to leave hook space for the first lifting ear 311 or the second lifting ear 321 to avoid the overhead crane hook 400 being limited by the distance between the moving wheel 210 and the first lifting ear 311, or being limited by the distance between the moving wheel 210 and the second lifting ear 321, resulting in the inability to hang the lifting ear.

[0096] In a specific embodiment, the distance between the upper edge of the moving wheel 210 and the lower edge of the first lifting ear 311 in the height direction forms a first distance, and the first distance is greater than 800 mm; and / or, the distance between the upper edge of the moving wheel 210 and the lower edge of the second lifting ear 321 in the height direction forms a second distance, and the second distance is greater than 800 mm.

[0097] like Figure 2 and Figure 4 As shown, in one embodiment,

[0098] The first lifting lug 311, the second lifting lug 321, and the moving wheel 210 are respectively connected to the outer side walls of different support beams 230, for forming a first hook space for the overhead traveling crane hook 400 to connect with the first lifting lug 311, and a second hook space for the overhead traveling crane hook 400 to connect with the second lifting lug 321.

[0099] The loading device of the horizontal charging preheating electric furnace provided by the utility model can also connect the first lifting lug 311, the second lifting lug 321, and the moving wheel 210 to the outer side walls of different support beams 230 respectively, avoiding the situation where the first lifting lug 311 cannot be hung due to the distance between the moving wheel 210 and the first lifting lug 311 when the first lifting lug 311 and the moving wheel 210 are connected to the same outer side wall of the same support beam 230, and avoiding the situation where the second lifting lug 321 cannot be hung due to the distance between the moving wheel 210 and the second lifting lug 321 when the second lifting lug 321 and the moving wheel 210 are connected to the same outer side wall of the same support beam 230.

[0100] In a specific embodiment, the distance between the moving wheel 210 and the first lifting lug 311 is greater than 800 mm; and / or the distance between the moving wheel 210 and the second lifting lug 321 is greater than 800 mm.

[0101] like Figure 2 and Figure 4 As shown, in one embodiment,

[0102] The support structure 200 also includes a tow hook assembly 500 for connecting to the tow hook 610 of the trailer 600. The tow hook assembly 500 has a fixed end 510 and a connecting end 520. The fixed end 510 is connected to the support leg 220, and the connecting end 520 extends along the axial direction of the material storage trough 110 away from the material storage trough 110 for connecting to the tow hook 610.

[0103] The loading device of the horizontal charging preheating electric furnace provided by the present invention can be connected to a trailer 600 with a towing hook 610 and a lifting function at the rear by setting a towing hook assembly 500, so that the trailer 600 can drive the trough structure 100 to move within the factory. The towing hook assembly 500 is set on the supporting leg 220, and the supporting leg 220 can be lifted by the trailer 600 and the trough structure 100 can be dragged to move.

[0104] In one embodiment, the loading process of the loading device of the horizontal charging preheating electric furnace includes:

[0105] Step S1: Freight trucks or freight trains transport scrap steel to the scrap steel warehouse in the factory;

[0106] Step S2: unloading the scrap steel into the scrap steel warehouse;

[0107] Step S3: Conducting quality inspection and grading of the scrap steel;

[0108] Step S4: The sorted scrap steel is sucked up by the overhead crane magnetic disk of the scrap steel storage and is sorted and placed into the slot cavity 112 of the loading device;

[0109] Step S5: The trailer 600 is connected to the towing hook assembly 500 of the loading device, and the trailer 600 lifts the support leg 220 and drives the loading device to move to the floor scale for weighing;

[0110] Step S6: The trailer 600 drags the loading device to the scrap batching room for storage, waiting to be loaded into the horizontal charging preheating electric furnace. At this time, the trailer 600 is separated from the towing hook assembly 500 of the loading device;

[0111] Step S7: The double-hook lifting crane configured in the scrap steel batching room or the overhead crane hook 400 located above the horizontal charging preheating electric furnace is connected to the first lifting lug assembly 310 and the second lifting lug assembly 320 respectively and pulls the loading device to the top of the horizontal charging preheating electric furnace.

[0112] Step S8: The double-hook lifting crane arranged in the scrap steel batching room or the overhead crane hook 400 located above the horizontal charging preheating electric furnace respectively lifts the first lifting ear assembly 310 and the second lifting ear assembly 320 to different heights, so that the first lifting ear assembly 310 and the second lifting ear assembly 320 have a height difference in the height direction and the height of the trough 120 is raised to a height lower than the storage tank 110, so that the scrap steel in the storage tank 110 can be poured out into the horizontal charging preheating electric furnace through the discharge port 111 and the trough 120.

[0113] Step S9: After the scrap steel is poured out, the double-hook lifting crane configured in the scrap steel batching room or the overhead crane hook 400 located above the horizontal charging preheating electric furnace lifts the first lifting eye assembly 310 and the second lifting eye assembly 320 to restore them to the same height.

[0114] Step S10: The double-hook lifting crane configured in the scrap steel batching room or the overhead crane hook 400 located above the horizontal charging preheating electric furnace drives the loading device down to the ground of the scrap steel batching room to complete the loading.

[0115] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A feeding device for a horizontal charging preheating electric furnace, characterized in that: include: A trough structure, comprising a storage trough and a hopper, wherein the hopper is connected to one axial end of the storage trough, and a discharge port is provided at one end of the storage trough connected to the hopper. The storage trough has a trough cavity for storing scrap steel, and the discharge port is in communication with the trough cavity; A support structure comprising a plurality of movable wheels and support legs, wherein the support legs protrude downward from the bottom of the trough, and the plurality of movable wheels are symmetrically arranged on opposite side walls of the storage trough, wherein the lower edges of the movable wheels are lower than the bottom wall of the storage trough in the height direction and are flush with the lower edges of the support legs; The lifting structure includes a first lifting ear assembly and a second lifting ear assembly for connecting to the overhead crane hook, the first lifting ear assembly and the second lifting ear assembly are arranged on the side wall of the storage trough along the axial direction of the storage trough, and the overhead crane hook can drive the first lifting ear assembly and the second lifting ear assembly to move in the height direction respectively to produce a height difference, wherein, when the height of the trough bucket is lower than the height of the storage trough, the scrap steel in the trough cavity can be poured out through the pouring port.

2. The loading device for the horizontal charging preheating electric furnace according to claim 1 is characterized in that: The first lifting ear assembly includes two first lifting ears, which are symmetrically arranged on two opposite outer side walls of the storage trough, and the first lifting ears are arranged near an end of the storage trough away from the hopper; The second lifting ear assembly includes two second lifting ears, which are symmetrically arranged on two opposite outer side walls of the storage trough, and the second lifting ear is arranged near one end of the storage trough connected to the hopper.

3. The loading device for the horizontal charging preheating electric furnace according to claim 2, characterized in that: The support structure also includes a plurality of supporting beams, the inner surfaces of which are respectively fitted with the outer bottom wall and two opposite outer side walls of the storage trough, and the plurality of supporting beams are arranged at intervals along the axial direction of the storage trough, and the moving wheel, the first lifting ear and the second lifting ear are respectively connected to the outer side walls of the supporting beams.

4. The loading device for the horizontal charging preheating electric furnace according to claim 3, characterized in that: The support structure also includes two first cross beams, which are symmetrically arranged on the opposite side walls of the storage trough. The inner surfaces of the first cross beams are fitly connected to the outer side walls of the storage trough. The first cross beams are extended along the axial direction of the storage trough and cross-connected with the support beams.

5. The loading device for the horizontal charging preheating electric furnace according to claim 4, characterized in that: A hanging seat is formed at the position where the first cross beam and the supporting beam are cross-connected, wherein the two first lifting ears are respectively arranged on a pair of the hanging seats symmetrically arranged on the opposite side walls of the storage trough, and the two second lifting ears are respectively arranged on another pair of the hanging seats symmetrically arranged on the opposite side walls of the storage trough.

6. The loading device for the horizontal charging preheating electric furnace according to claim 4, characterized in that: The support structure also includes two second cross beams, which are symmetrically arranged on the opposite side walls of the storage trough, and the inner surfaces of the second cross beams are fitly connected to the outer side walls of the storage trough. The second cross beams are extended along the axial direction of the storage trough and cross-connected with the support beam. The second cross beams are arranged below the first cross beam.

7. The loading device for the horizontal charging preheating electric furnace according to claim 6, characterized in that: The thickness of the first crossbeam is the same as that of the second crossbeam, and the height of the first crossbeam in the height direction is more than twice the height of the second crossbeam in the height direction.

8. The loading device for the horizontal charging preheating electric furnace according to claim 3, characterized in that: The first lifting lug and the moving wheel are connected to the same outer side wall of the same support beam, and the distance between the upper edge of the moving wheel and the first lifting lug forms a first distance, and / or the second lifting lug and the moving wheel are connected to the same outer side wall of the same support beam, and the distance between the upper edge of the moving wheel and the second lifting lug forms a second distance; The first distance and the second distance are both greater than 800 mm.

9. The loading device for the horizontal charging preheating electric furnace according to claim 3, characterized in that: The first lifting lug, the second lifting lug, and the moving wheel are respectively connected to the outer side walls of different support beams to form a first hook space for connecting the overhead traveling crane hook with the first lifting lug, and a second hook space for connecting the overhead traveling crane hook with the second lifting lug.

10. The loading device for a horizontal charging preheating electric furnace according to claim 1, characterized in that: The support structure also includes a tow hook assembly for connecting to a tow hook of a trailer, the tow hook assembly having a fixed end and a connecting end, the fixed end being connected to the support leg, and the connecting end extending along the axial direction of the material storage trough in a direction away from the material storage trough for connecting to the tow hook.

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