Direct reduction iron material loading and transporting device

Abstract

The utility model discloses a direct reduction iron material loading and transporting device. The device comprises a track laid between a direct reduction iron material warehouse and a steelmaking workshop; the transfer trolley can move along the track; the hopper is arranged on the transfer trolley and is used for loading a direct reduction iron material; and the vibrating feeder is arranged at a discharge hole of the hopper. According to the scheme, the rail, the transfer trolley and the hopper are arranged, so that a rail type movable material receiving trolley is conveniently formed between the direct reduction iron material warehouse and the steelmaking workshop, direct reduction iron materials can be automatically transferred to the steelmaking workshop along a set path after being loaded, and the loading and transferring mode is high in efficiency, high in automation degree, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of direct reduced iron production, in particular to a direct reduced iron material loading and shipping device. Background Art

[0002] Direct Reduced Iron (DRI) products are oxidized pellets or iron ore nuggets that are directly reduced to low-carbon, porous metal with a metallization rate of over 90% in a reduction shaft furnace at high temperatures. They have a stable chemical composition and low levels of impurities such as sulfur and phosphorus. They are primarily used as a raw material for electric furnace steelmaking and as a coolant for converter steelmaking. They come in two main forms: cold DRI pellets (CDRI) and hot briquetted iron (HBI).

[0003] After production, direct-reduced iron (DRI) products are partially or fully stored in a material warehouse as a commodity or raw material for smelting. During the export process, DRI, a crucial raw material, is typically loaded onto trucks by forklifts and then transported to electric furnace steelmaking workshops. However, this loading and transportation method has drawbacks such as low efficiency, a low degree of automation, and potential safety risks. Utility Model Content

[0004] In view of this, the utility model provides a direct reduced iron material loading and transporting device, which can automatically transport the direct reduced iron material to the steelmaking workshop along a predetermined path after loading. This loading and transporting method is highly efficient, highly automated, safe and reliable.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A direct reduced iron material loading and unloading device, comprising:

[0007] Used for laying tracks between the direct reduced iron material warehouse and the steelmaking workshop;

[0008] a transfer vehicle capable of moving along the track;

[0009] A hopper provided on the transfer vehicle for loading direct reduced iron materials;

[0010] A vibrating feeder is arranged at the discharge port of the hopper.

[0011] Preferably, there are multiple hoppers, and the multiple hoppers are arranged in parallel on the transfer vehicle;

[0012] There are multiple vibrating feeders, and the multiple vibrating feeders are arranged one by one at the discharge ports of the multiple hoppers.

[0013] Preferably, the number of the hoppers is two, and the two hoppers are adjacent to and arranged in parallel on the transfer vehicle; wherein the parallel direction of the two hoppers is perpendicular to the sliding direction of the transfer vehicle;

[0014] There are two vibrating feeders, and the two vibrating feeders are respectively arranged at the discharge ports of the two hoppers.

[0015] Preferably, it further comprises two support columns;

[0016] One of the support columns is disposed between the transfer vehicle and a first outer side wall of the tapered portion of one of the hoppers, and the other support column is disposed between the transfer vehicle and the first outer side wall of the tapered portion of another of the hoppers;

[0017] The connecting line of the two support columns is parallel to the parallel direction of the two hoppers, and the first outer side wall of the conical part of the hopper is away from the other hopper.

[0018] Preferably, it also includes two maintenance platforms;

[0019] The two inspection platforms are respectively arranged on the transfer vehicle and are located on both sides of the two hoppers; wherein, the connection line of the two inspection platforms is parallel to the sliding direction of the transfer vehicle.

[0020] Preferably, the maintenance platform comprises: a straight ladder, a platform and inclined support rods;

[0021] The vertical ladder is provided on the transfer vehicle and is located on one side of the two hoppers;

[0022] The platform is arranged between the vertical ladder and the two hoppers, and is located above the vertical ladder;

[0023] The oblique support rod is arranged between the bottom of the platform and the middle and lower part of the straight ladder.

[0024] Preferably, it also includes a wear-resistant alloy grid;

[0025] The wear-resistant alloy grid is provided to cover the feed openings of the two hoppers.

[0026] Preferably, it further comprises: two anti-collision alarm prompting devices respectively arranged at the first end and the second end of the transfer vehicle;

[0027] Wherein, a line connecting the first end and the second end of the transfer vehicle is parallel to the sliding direction of the transfer vehicle.

[0028] Preferably, the anti-collision alarm prompt device includes an anti-collision sound and light warning device.

[0029] Preferably, the track is a double track;

[0030] The walking part of the transfer vehicle includes a double-roller walking mechanism and can move along the double tracks.

[0031] As can be seen from the above technical solution, the direct reduced iron material loading device provided by the utility model is provided with a track, a transfer vehicle and a hopper, so as to form a track-type mobile receiving vehicle between the direct reduced iron material warehouse and the steelmaking workshop, so that the direct reduced iron material can be automatically transferred to the steelmaking workshop along a predetermined path after loading. This loading and transfer method is highly efficient, highly automated, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A front view of the structure of a direct reduced iron material loading device provided by an embodiment of the utility model;

[0034] Figure 2 A side view of the structure of a direct reduced iron material loading device provided by an embodiment of the utility model;

[0035] Figure 3 A schematic diagram of the distribution of tracks provided in an embodiment of the present utility model;

[0036] Figure 4 A top view of the structure of the wear-resistant alloy grid provided in an embodiment of the present utility model;

[0037] Figure 5 A side view of the structure of the wear-resistant alloy grid provided by an embodiment of the utility model;

[0038] Figure 6 A side view of the structure of the maintenance platform provided by an embodiment of the utility model;

[0039] Figure 7 A side view of the structure of the hopper provided in an embodiment of the utility model;

[0040] Figure 8 A front view of the structure of the support column provided by an embodiment of the utility model;

[0041] Figure 9 A side view of the partial structure of the transfer vehicle provided by an embodiment of the utility model;

[0042] Figure 10A front view of the partial structure of the transfer vehicle provided in an embodiment of the utility model.

[0043] Among them, 1 is a track; 2 is a transfer vehicle, 21 is a flange-type polyurethane buffer, 22 is a crossbeam (supporting roller bearing crossbeam), 23 is a motor reducer, 24 is a driving wheel assembly, 25 is a driven wheel assembly, 26 is a motor anti-rotation arm, 27 is an anti-derailment device, and 28 is a cable reel mechanism; 3 is a hopper, 31 is a conical part, 32 is a cylindrical part, 33 is a material baffle, 34 is a wear-resistant alloy grille, 35 is a support column, 36 is a support, and 37 is a column; 4 is a vibrating feeder; 5 is a feeding mechanism; 6 is a maintenance platform, 61 is a vertical ladder, 62 is a platform, and 63 is an inclined support rod; 7 is an anti-collision alarm prompt device; 8 is a maintenance personnel, and 9 is a retaining wall. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 are within the scope of protection of the present invention.

[0045] The direct reduced iron material loading device provided by the embodiment of the utility model is as follows: Figure 1 Shown, including:

[0046] Used for laying track 1 between the direct reduced iron material warehouse and the steelmaking workshop;

[0047] A transfer vehicle 2 capable of moving along the track 1;

[0048] A hopper 3 provided on the transfer vehicle 2 for loading direct reduced iron materials;

[0049] A vibrating feeder 4 is provided at the discharge port of the hopper 3 .

[0050] It should be noted that the track 1 is used to be laid between the direct reduced iron material warehouse and the steelmaking workshop; wherein, the track 1 is located in a section of the direct reduced iron material warehouse, and the existing stacker track can be used to reduce costs; the transfer vehicle 2 is equivalent to a rail vehicle set on the track 1 and can move along the track 1; wherein, as Figure 1 As shown, track 1 can be a double track, such as Figure 2 As shown, the transfer vehicle 2 can adopt a corresponding double-roller rail vehicle, which can make the transfer of direct reduced iron materials stable and reliable; Figure 1As shown, the hopper 3 can be set on the top of the transfer vehicle 2 and can be used to load the direct reduced iron material transferred by the grab or loader; the feed port of the vibrating feeder 4 is connected to the discharge port (discharge port) of the hopper 3 to ensure smooth discharge of the hopper 3 and avoid blockage of the discharge port of the hopper 3, and the discharge port of the vibrating feeder 4 is also used to connect with the feeding mechanism 5; wherein, the feeding mechanism 5 can be set between the direct reduced iron material warehouse and the steelmaking workshop, and a conveyor belt assembly can be used, that is, the discharge port of the vibrating feeder 4 can face the belt of the conveyor belt assembly, so that the direct reduced iron material in the hopper 3 is conveniently unloaded into the steelmaking workshop.

[0051] In addition, the track 1 can also be laid between the direct reduced iron material warehouse and the storage yard shed of the CDRI or HBI; wherein, the direct reduced iron material can be loaded into the hopper 3 by a grab bucket or loader, and the transfer vehicle 2 can move back and forth along the track 1 according to the conditions of the material yard to facilitate the hopper 3 to receive the material. After the transfer vehicle 2 moves to the material yard, the vibrating feeder 4 is started as needed to transfer the direct reduced iron material to the feeding mechanism 5 of the material yard. During this process, it can be monitored and quantitative output can be implemented.

[0052] Specifically, the DRI material loading and unloading device provided in this embodiment comprises a track 1, a transfer vehicle 2, and a hopper 3, which form a track-mounted mobile receiving vehicle between the DRI material warehouse and the steelmaking workshop. This allows the loaded DRI material to be automatically transported to the steelmaking workshop along a predetermined path. In other words, the DRI material is transported to the steelmaking workshop for smelting by the track-mounted mobile receiving vehicle. This loading and unloading method is highly efficient, automated, safe, and reliable, while also relieving labor from the arduous task of truck transportation. Of course, the track 1 can also be laid between the DRI material warehouse and the packaging workshop. In this way, the DRI material, as a commodity, can be transported to the packaging workshop by the track-mounted mobile receiving vehicle, thereby facilitating the export of the DRI material.

[0053] In this solution, there are multiple hoppers 3, and the multiple hoppers 3 are arranged in parallel on the transfer vehicle 2;

[0054] There are multiple vibrating feeders 4, each of which is installed at the discharge openings of the multiple hoppers 3. In other words, the transfer vehicle 2 is equipped with multiple hoppers 3 distributed in parallel, and each of the vibrating feeders 4 is installed at the discharge openings of the multiple hoppers 3, thereby ensuring smooth discharge from each discharge opening of the hopper 3. This design also helps increase the loading capacity of the direct reduced iron material loading device.

[0055] Specifically, if Figure 1As shown, there are two hoppers 3, which are adjacent and arranged in parallel on the transfer vehicle 2; wherein the parallel direction of the two hoppers 3 is perpendicular to the sliding direction of the transfer vehicle 2;

[0056] There are two vibrating feeders 4 , and the two vibrating feeders 4 are respectively arranged at the discharge ports of the two hoppers 3 .

[0057] It should be noted that the sliding direction of the transfer vehicle 2 is the length direction of the track 1, that is, the front-to-back direction of the transfer vehicle 2. Accordingly, the parallel direction of the two hoppers 3 can be the left-right direction of the transfer vehicle 2. In addition, the inclination angle of the hopper 3 should be designed appropriately, such as Figure 1 As shown, the inclination angle of the first side wall of the tapered part 31 of the hopper 3 is not greater than 43°, and the inclination angle of the second side wall is not greater than 50°; wherein, the first side wall of the tapered part 31 of the hopper 3 is away from the adjacent hopper 3, and the second side wall is close to the adjacent hopper 3; and the thickness of the hopper 3 itself needs to meet the requirements, the thickness of the hopper 3 itself is not less than 10mm, and the inner side of the hopper 3 can be provided with a 16Mn lining plate, the thickness of the lining plate is not less than 20mm, to ensure the strength of the hopper 3 structure, so that the load capacity of the hopper 3 can reach 50 tons; in addition, the two hoppers 3 can be centrally distributed on the transfer vehicle 2 (that is, centrally distributed front and back and centrally distributed left and right), and the left and right sides of the two hoppers 3 can be provided with anti-collision devices and anti-tipping devices, and protective railings can be provided in the air-facing area; in addition, the vibrating feeder 4 can use a 1.5KW vibrating feeder;

[0058] Of course, hopper 3 can be loaded with CDRI material, the particle size of CDRI material is 6 to 40 mm, and the specific gravity is 1.6 to 1.8 m 3 / t, hopper 3 can also be loaded with HBI materials, the specific gravity of HBI materials will be higher than that of CDRI materials, up to 3.3m 3 / t or above, with particle size of 135×100×50mm.

[0059] In other words, the present solution is designed in such a way that the direct reduced iron material loading device can be formed into a track-mounted mobile dual-receiving vehicle. Moreover, the distribution of the two hoppers 3 helps ensure the stability of the track-mounted mobile dual-receiving vehicle and facilitates the installation of maintenance platforms 6 on the front and rear sides of the two hoppers 3. Of course, the parallel direction of the two hoppers 3 can also be parallel to the sliding direction of the transfer vehicle 2.

[0060] Further, if Figure 1 As shown, the direct reduced iron material loading device provided by the embodiment of the present utility model further includes two support columns 35;

[0061] One support column 35 is provided between the transfer vehicle 2 and the first outer side wall of the tapered portion 31 of one hopper 3, and another support column 35 is provided between the transfer vehicle 2 and the first outer side wall of the tapered portion 31 of the other hopper 3;

[0062] The connecting line of the two support columns 35 is parallel to the parallel direction of the two hoppers 3 , and the first outer side wall of the tapered portion 31 of the hopper 3 is away from the other hopper 3 .

[0063] It should be noted that if Figure 1 As shown, the lower end of one support column 35 can be connected to the frame portion of the transfer vehicle 2, and the upper end can be connected to the first outer side wall of the tapered portion 31 of one hopper 3; the lower end of another support column 35 can be connected to the frame portion of the transfer vehicle 2, and the upper end can be connected to the first outer side wall of the tapered portion 31 of another hopper 3; wherein, the two support columns 35 can be respectively distributed on the left and right sides of the two hoppers 3, and can be used to provide support for the left and right sides of the two hoppers 3, ensuring the stability of the two hoppers 3 on the transfer vehicle 2, and also having an anti-tipping effect on the left and right sides of the two hoppers 3; of course, support columns 35 can also be provided on the front and rear sides of the two hoppers 3, so as to provide support for the front and rear sides of the two hoppers 3 and have an anti-tipping effect. In addition, as Figure 8 As shown, the support column 35 may include: a support 36 and a column 37 connected and fixed to the bottom end of the support 36.

[0064] Furthermore, if Figure 2 As shown, the direct reduced iron material loading device provided by the embodiment of the present utility model further includes two maintenance platforms 6;

[0065] The two inspection platforms 6 are respectively provided on the transfer vehicle 2 and are located on both sides of the two hoppers 3 ; wherein, the connecting line of the two inspection platforms 6 is parallel to the sliding direction of the transfer vehicle 2 .

[0066] It should be noted that if Figure 2 As shown, two maintenance platforms 6 can be respectively distributed on the front and rear sides of the two hoppers 3, which can facilitate maintenance of the two hoppers 3 and make the direct reduced iron material loading device easy to maintain. Of course, maintenance platforms can also be provided on the left and right sides of the two hoppers 3.

[0067] In this program, if Figure 6 As shown, the maintenance platform 6 includes: a straight ladder 61, a platform 62 and an inclined support rod 63;

[0068] The vertical ladder 61 is provided on the transfer vehicle 2 and is located on one side of the two hoppers 3;

[0069] The platform 62 is provided between the vertical ladder 61 and the two hoppers 3 and is located above the vertical ladder 61;

[0070] The oblique support rod 63 is disposed between the bottom of the platform 62 and the lower middle portion of the ladder 61 .

[0071] It should be noted that if Figure 6 As shown, the ladder 61 is set on the frame of the transfer vehicle 2 and can be located in front of or behind the two hoppers 3; the platform 62 can be set between the upper part of the ladder 61 and the front or rear of the two hoppers 3, and a guardrail can be provided on the platform 62; the inclined support rod 63 is set between the bottom of the platform 62 and the middle and lower part of the ladder 61 to ensure the stability of the platform 62. Among them, the ladder 61 and the platform 62 can be welded parts, and the inclined support rod 63 can be made of 50×50×4 angle steel. The structures of the three can refer to Figure 6 As shown; of course, Figure 2 As shown, the maintenance personnel 8 climb up to the platform 62 via the ladder 61 to carry out maintenance work. In other words, the maintenance platform 6 is designed in this way, and has the characteristics of simple structure and convenient maintenance.

[0072] Specifically, if Figure 2 As shown, the direct reduced iron material loading device provided by the embodiment of the present utility model further includes a wear-resistant alloy grid 34, the structure of which can be referred to Figure 4 and Figure 5 As shown;

[0073] Wear-resistant alloy gratings 34 are installed over the feed ports of both hoppers 3. Specifically, the wear-resistant alloy gratings 34 cover and secure the feed ports of both hoppers 3. This not only facilitates the removal of impurities and large lumps from the direct-reduced iron (DRI) material, but also acts as a buffer, reducing the pulverization of the DRI. The wear-resistant alloy gratings 34 are removable and can be assembled from multiple small gratings (e.g., eight small gratings) and made of 16Mn.

[0074] In addition, it should be noted that Figure 7 As shown, the hopper 3 includes two parts, a cylindrical part 32 and a conical part 31; the wear-resistant alloy grid 34 actually covers and is fixed to the top of the cylindrical part 32 of the two hoppers 3; the two support columns 35 are respectively used to support the first outer side walls of the conical parts 31 of the two hoppers 3; and the hopper 3 is also provided with a material baffle 33 at the junction of the cylindrical part 32 and the conical part 31, so that when the hopper 3 is loaded with materials, it can prevent the materials from spilling out and falling on the track and being difficult to collect.

[0075] Further, if Figure 2 As shown, the direct reduced iron material loading device provided by the embodiment of the present utility model further includes: two anti-collision alarm prompting devices 7 respectively provided at the first end and the second end of the transfer vehicle 2;

[0076] The line connecting the first end and the second end of the transfer vehicle 2 is parallel to the sliding direction of the transfer vehicle 2 .

[0077] It should be noted that the first end of the transfer vehicle 2 can be the front end of the transfer vehicle 2, and the second end can be the rear end of the transfer vehicle 2; that is, the front and rear ends of the transfer vehicle 2 are respectively provided with anti-collision alarm prompt devices 7. In this way, the front and rear ends of the rail-type mobile receiving vehicle have anti-collision warning functions, thereby helping to improve the safety of the rail-type mobile receiving vehicle. In other words, the present loading device is designed so that if the transfer vehicle 2 is scraped or blocked by foreign objects during its forward or backward movement, a fault alarm will be generated and the vehicle will be shut down.

[0078] Furthermore, the anti-collision alarm device 7 includes an anti-collision sound and light warning device, which can make the anti-collision warning effect of the rail-mounted mobile receiving vehicle more prominent, and further help ensure the safety of the rail-mounted mobile receiving vehicle. In addition, the signal of the anti-collision sound and light warning device can be connected to the distributed control system (DCS), and safety decisions can be made by setting different values ​​in the distributed control system (DCS). For example, when the transfer vehicle 2 is 3 meters away from the obstacle, the DCS interface will alarm, and when it is 2 meters away from the obstacle, braking measures will be taken.

[0079] Specifically, if Figure 3 As shown, track 1 is a double track;

[0080] like Figure 2 As shown, the running part of the transfer vehicle 2 includes a double roller running mechanism and can move along a double track. The transfer vehicle 2 includes a frame part and a running part; that is, the transfer vehicle 2 is a double roller track vehicle, which makes the direct reduced iron material loading device a double track mobile receiving vehicle, which makes the transfer of direct reduced iron materials more stable and reliable. Figure 9 and Figure 10 As shown, the driving device of the double-track mobile receiving vehicle adopts a walking motor with brake, that is, the motor has a built-in brake device, so that in an emergency, manual and automatic operation can be integrated; and considering the mobility of the double-track mobile receiving vehicle, such as Figure 2 As shown, the dual-track mobile receiving vehicle is powered by a cable reel mechanism 28. The cable reel mechanism 28 is 30 meters long, and power ports are located approximately every 30 meters along the track. This allows the transfer vehicle 2 to switch between different ports during movement to expand its working area, thereby covering the entire track length. Of course, this solution can also utilize existing dual-roller track vehicles.

[0081] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0082] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A direct reduced iron material loading and unloading device, characterized in that: include: Used for laying tracks between a direct reduced iron material warehouse and a steelmaking workshop (1); a transfer vehicle (2) capable of moving along the track (1); A hopper (3) provided on the transfer vehicle (2) for loading direct reduced iron material; A vibrating feeder (4) is provided at the discharge port of the hopper (3).

2. The direct reduced iron material loading device according to claim 1, characterized in that: There are multiple hoppers (3), and the multiple hoppers (3) are arranged in parallel on the transfer vehicle (2); There are multiple vibrating feeders (4), and the multiple vibrating feeders (4) are arranged one by one at the discharge ports of the multiple hoppers (3).

3. The direct reduced iron material loading device according to claim 2, characterized in that: There are two hoppers (3), and the two hoppers (3) are adjacent and arranged in parallel on the transfer vehicle (2); wherein the parallel direction of the two hoppers (3) is perpendicular to the sliding direction of the transfer vehicle (2); The number of the vibrating feeders (4) is two, and the two vibrating feeders (4) are respectively arranged at the discharge ports of the two hoppers (3).

4. The direct reduced iron material loading device according to claim 3, characterized in that: Also included are two support columns (35); One of the support columns (35) is disposed between the transfer vehicle (2) and a first outer side wall of the tapered portion (31) of one of the hoppers (3), and the other support column (35) is disposed between the transfer vehicle (2) and a first outer side wall of the tapered portion (31) of another of the hoppers (3); The connecting line of the two support columns (35) is parallel to the parallel direction of the two hoppers (3), and the first outer side wall of the tapered portion (31) of the hopper (3) is away from the other hopper (3).

5. The direct reduced iron material loading and unloading device according to claim 3, characterized in that: Also included are two maintenance platforms (6); The two inspection platforms (6) are respectively arranged on the transfer vehicle (2) and are respectively located on both sides of the two hoppers (3); wherein, the connecting line of the two inspection platforms (6) is parallel to the sliding direction of the transfer vehicle (2).

6. The direct reduced iron material loading and unloading device according to claim 5, characterized in that: The maintenance platform (6) comprises: a straight ladder (61), a platform (62) and an oblique support rod (63); The vertical ladder (61) is arranged on the transfer vehicle (2) and is located on one side of the two hoppers (3); The platform (62) is arranged between the vertical ladder (61) and the two hoppers (3), and is located above the vertical ladder (61); The oblique support rod (63) is arranged between the bottom of the platform (62) and the middle and lower part of the straight ladder (61).

7. The direct reduced iron material loading and unloading device according to claim 3, characterized in that: Also included is a wear-resistant alloy grid (34); The wear-resistant alloy grid (34) is provided to cover the feed openings of the two hoppers (3).

8. The direct reduced iron material loading and unloading device according to claim 1, characterized in that: Also includes: Two anti-collision alarm prompting devices (7) are respectively arranged at the first end and the second end of the transfer vehicle (2); Wherein, a line connecting the first end and the second end of the transfer vehicle (2) is parallel to the sliding direction of the transfer vehicle (2).

9. The direct reduced iron material loading and unloading device according to claim 8, characterized in that: The anti-collision alarm prompting device (7) comprises an anti-collision sound and light warning device.

10. The direct reduced iron material loading and unloading device according to claim 1, characterized in that: The track (1) is a double track; The walking part of the transfer vehicle (2) includes a double-roller walking mechanism and is capable of moving along the double tracks.

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