A track-type slag transport and unloading system based on automated operation

Abstract

The present invention discloses a rail-type slag transport and unloading system based on automated operation, which relates to the technical field of mechanical equipment in the metallurgical industry, and is used to solve the problem of waste slag transportation and unloading during rail transportation operations under automated operation conditions. The system includes a track, a transport part, a slag box part, and an unloading device. The track extends from a slag receiving point under a furnace to a slag field unloading point. The transport part is movably arranged along the track, and the slag box part is placed on the transport part. When the transport part is located at the slag receiving point under the furnace, the slag box part performs a material receiving process. The unloading device is arranged in front of the slag field unloading point, and the unloading device realizes the unloading process of the slag box part when the transport part is located at the slag field unloading point. The present invention is used in the process flow of producing magnesium metal by silicon thermal method, and can realize automatic transportation and unloading, improve the inefficiency problem existing due to the use of manually operated equipment such as wheeled forklifts and dump trucks, and improve the safety of the production process.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment in the metallurgical industry, and in particular to a track-type slag transport and unloading system based on automated operation. Background Art

[0002] In the process of producing magnesium metal by the silicothermic method, an important step is to initially reduce the crude magnesium by heating reduction after the ore calcination and raw material preparation, and discharge the remaining slag. The efficiency of the slag discharge process directly affects the production efficiency of magnesium metal.

[0003] The commonly used slag transportation and discharge method is to use a wheeled forklift and a dump truck. The wheeled forklift is used to transfer the slag box containing waste slag under the reduction furnace to the dump truck for transportation, and the empty slag box is moved to the bottom of the reduction furnace to continue to receive slag. The dump truck transports the slag box containing waste slag to the unloading point to unload the slag, and then returns with the empty slag box to hand over to the wheeled forklift for the next round of slag discharge operations.

[0004] Obviously, the above-mentioned slag transporting and discharging method has the defect of low efficiency and cannot meet the needs of automated operation. Summary of the invention

[0005] The present application provides a rail-type slag transport and unloading system based on automated operation, which solves the problem of waste slag transportation and unloading during rail transportation operations under automated operation conditions.

[0006] A track-type slag transport and unloading system based on automated operation comprises a track, a transport part, a slag box part and an unloading device, wherein the track extends from a slag receiving point under a furnace to a slag yard unloading point, the transport part is movably arranged along the track, the slag box part is placed on the transport part, and when the transport part is located at the slag receiving point under the furnace, the slag box part performs a material receiving process, and the unloading device is arranged in front of the slag yard unloading point, and the unloading device realizes the unloading process of the slag box part when the transport part is located at the slag yard unloading point.

[0007] Optionally, a slag receiving opening is provided on the top of the slag box part, and the slag receiving opening is used to realize the material receiving process of the slag box part when the transport part is located at the slag receiving point under the furnace.

[0008] Optionally, the unloading device comprises:

[0009] The seat body is fixedly installed on the ground;

[0010] Two lifting cylinders are respectively arranged on the left and right sides of the track, and the bottom ends of the lifting cylinders are rotatably connected to the base body; and

[0011] Two unloading forks are respectively arranged on the left and right sides of the track. The unloading forks are rotatably connected to the top of the lifting cylinder located on the same side of the track. The unloading forks are also rotatably connected to the seat body. A fork unloading baffle is also arranged at the tail of the unloading fork. The fork unloading baffle is used to limit the slag box part when the slag box part is turned over.

[0012] Open grooves serving as starting points of unloading forks are arranged on the left and right sides of the body of the slag box part, and the unloading fork body is inserted into the open grooves during the unloading process of the slag box part.

[0013] Optionally, a discharge door is provided on the rear end surface of the slag box, and the top end of the discharge door is rotatably connected to the body of the slag box;

[0014] The body of the slag box is equipped with a switch mechanism, which is used to control whether the discharge door and the tail of the slag box are locked.

[0015] Optionally, the switching mechanism includes a door hook and an elastic reset member, the door hook includes a head, a body and a tail connected in sequence, one end of the elastic reset member is connected to the body of the slag box part, and the other end of the elastic reset member is connected to the head of the door hook, the door hook is rotatably connected to the body of the slag box part at the body, a protrusion is provided on the upper edge of the body of the door hook, and a hook is provided on the lower edge of the tail of the door hook, and the unloading fork body is provided with a collision block cooperating with the protrusion, and the collision block is configured to collide with the protrusion to separate the hook from the cross bolt of the unloading door, and to disengage from the protrusion to allow the hook to resist the cross bolt of the unloading door.

[0016] Optionally, the upper edge of the transport portion and the lower edge of the slag box portion are equipped with mutually matching limit blocks to limit the freedom of the slag box portion in the front-to-back direction and the left-to-right direction when the slag box portion is placed on the transport portion.

[0017] Optionally, the slag box part includes an outer box body located at the outer layer, an inner box body located at the inner layer, and an insulation layer arranged between the outer box body and the inner box body. The top of the outer box body is open, and the slag receiving port is opened at the top of the inner box body.

[0018] Optionally, the inner surface of the inner box is coated with a high temperature resistant and wear-resistant layer made of a high temperature resistant and wear-resistant material.

[0019] Optionally, the elastic return member includes a spring.

[0020] Optionally, the rotatable connection between the lifting cylinder and the seat body is lower than the rotatable connection between the unloading fork body and the seat body.

[0021] The beneficial effects of the present application are as follows: The present application provides a track-type slag transportation and unloading system based on automated operation, wherein a track is arranged between a slag receiving point under a furnace and a slag yard unloading point, a transport part moving along the track is provided, a slag box part is placed on the transport part, when the transport part is located at the slag receiving point under the furnace, the slag box part performs a material receiving process, and when the transport part is located at the slag yard unloading point, the slag box part unloads the waste slag inside to the slag yard unloading point, wherein the slag box part is opened by an unloading device to achieve smooth unloading; through the scheme of the present application, the problem of transporting and unloading the slag of the reduction furnace in the process of producing magnesium metal by the silicon thermal method under automated production conditions is solved, automatic transportation and unloading can be achieved, multiple manual operations such as the original wheeled forklift and dump truck are avoided, and the low efficiency problem existing in the original method is improved, which is conducive to improving production efficiency and ensuring production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0023] Figure 1 A schematic diagram of the overall structure of a track-type slag transport and unloading system based on automated operation provided in this application;

[0024] Figure 2 It is a schematic diagram of the freedom restriction of the slag box part in the track-type slag transport and unloading system;

[0025] Figure 3 It is a schematic diagram of the specific structure of the slag box part in the track-type slag transport and unloading system;

[0026] Figure 4 It is a schematic diagram of the structure of the slag box part and the unloading device along the cross-sectional direction of the track in the track-type slag transport and unloading system;

[0027] Figure 5 It is a schematic diagram of the structure of the slag box part and the unloading device along the length direction of the track in the track-type slag transport and unloading system;

[0028] Figure 6 It is a specific structural schematic diagram of the switch mechanism in the rail-type slag transport and unloading system.

[0029] Figure markings: 100-track, 200-transport part, 210-limiting block, 300-slag box part, 310-slag receiving port, 320-starting point of unloading fork, 330-unloading door, 331-cross bolt, 341-outer box body, 342-inner box body, 343-insulation layer, 400-unloading device, 410-seat body, 420-lifting cylinder, 430-unloading fork body, 431-collision block, 440-fork body unloading baffle, 500-switch mechanism, 510-door hook, 511-protrusion, 512-hook part, 520-elastic reset part. DETAILED DESCRIPTION

[0030] The embodiment of the present application solves the problem of waste slag transportation and unloading during rail transportation operations under automated operation conditions by providing a rail-type slag transportation and unloading system based on automated operation.

[0031] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0032] A track-type slag transport and unloading system based on automated operation comprises a track, a transport part, a slag box part and an unloading device, wherein the track extends from a slag receiving point under a furnace to a slag yard unloading point, the transport part is movably arranged along the track, the slag box part is placed on the transport part, and when the transport part is located at the slag receiving point under the furnace, the slag box part performs a material receiving process, and the unloading device is arranged in front of the slag yard unloading point, and the unloading device realizes the unloading process of the slag box part when the transport part is located at the slag yard unloading point.

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Please refer to Figures 1 to 5 The present embodiment discloses a rail-type slag transport and unloading system based on automated operation, including a rail 100, a transport part 200, a slag box part 300 and an unloading device 400. The rail 100 extends from a slag receiving point under a furnace to a slag field unloading point. The transport part 200 is movably arranged along the rail 100. The slag box part 300 is placed on the transport part 200. When the transport part 200 is located at the slag receiving point under the furnace, the slag box part 300 performs a material receiving process. The unloading device 400 is arranged in front of the slag field unloading point. The unloading device 400 is used to realize the unloading process of the slag box part 300 when the transport part 200 is located at the slag field unloading point.

[0035] Through the above scheme, when the transport part 200 is located at the slag receiving point under the furnace, the slag box part 300 carries out the material receiving process, and when the transport part 200 is located at the slag yard unloading point, the slag box part 300 unloads the internal waste slag to the slag yard unloading point, wherein the slag box part 300 is opened by the unloading device 400 to realize smooth unloading; the problem of transportation and unloading of waste slag during the rail 100 transportation operation under automated operation conditions is solved, and multiple manual operations such as the original wheeled forklift and dump truck are avoided, thereby improving the low efficiency problem existing in the original method, which is conducive to improving production efficiency and ensuring production safety.

[0036] In particular, combined with the description of the background technology, the technical solution of this embodiment can be used in the process of producing magnesium metal by silicon thermal method, specifically, in the process of producing magnesium metal by silicon thermal method, the waste slag of the reduction furnace is discharged to the slag field, the reduction furnace is correspondingly provided with a slag receiving point under the furnace, and the slag field is provided with a slag field unloading point. The automation of the slag discharge process is beneficial to the production efficiency of magnesium metal; on the other hand, by reducing manual operations, it is beneficial to ensure production safety.

[0037] Optionally, see Figure 3 A slag receiving opening 310 is provided on the top of the slag box part 300. When the transport part 200 is located at the slag receiving point under the furnace, the waste slag discharged from the reduction furnace enters the slag box part 300 through the slag receiving opening 310, thereby realizing the material receiving process of the slag box part 300.

[0038] Regarding the unloading device 400, one type is arranged on the transport part 200 and moves with the transport part 200; this embodiment chooses to fix the unloading device 400 on the ground near the unloading point of the slag yard, which can not only reduce the complexity of the transport part 200, but also facilitate the stabilization of the unloading device 400. The corresponding unloading device 400 needs to be used in conjunction with the slag box part 300.

[0039] In some possible implementations, see Figure 1 , Figure 3 , Figure 4 and Figure 5 The unloading device 400 includes a base body 410 fixedly installed on the ground, two lifting cylinders 420 respectively arranged on the left and right sides of the track 100, and two unloading fork bodies 430 respectively arranged on the left and right sides of the track 100. The bottom end of the lifting cylinder 420 is rotatably connected to the base body 410, the unloading fork body 430 is rotatably connected to the top end of the lifting cylinder 420 located on the same side of the track 100, and the unloading fork body 430 is also rotatably connected to the base body 410.

[0040] A fork unloading baffle 440 is also provided at the tail of the unloading fork body 430. When the lifting cylinder 420 is extended or retracted, the slag box part 300 is deflected around the tail end, and the fork unloading baffle 440 is used to block the tail end of the slag box part 300 to prevent the slag box part 300 from sliding due to tilting.

[0041] In order to enable the unloading device 400 to successfully realize the unloading function of the slag box part 300, please refer to Figure 1 , Figure 3 and Figure 4 , an opening groove is provided on the left and right sides of the body of the slag box part 300, and the opening groove is provided along the length direction of the transport part 200, and the opening groove is provided near the bottom end of the slag box part 300. The opening groove serves as the starting point 320 of the unloading fork. During the unloading process of the slag box part 300, the unloading fork body 430 is inserted into the opening groove, and the unloading fork body 430 deflects as the lifting cylinder 420 is extended and retracted, thereby driving the slag box part 300 to deflect around the tail end, realizing unloading and restoring the waiting state for transportation.

[0042] In certain embodiments, see Figure 1 The rotatable connection between the lifting cylinder 420 and the seat body 410 is lower than the rotatable connection between the unloading fork body 430 and the seat body 410, so that the lifting cylinder 420 pushes the slag box part 300 to rise and rotate by extending.

[0043] Optionally, see Figure 1 and Figure 2 A discharge door 330 is provided at the rear end face of the slag box part 300, and the top end of the discharge door 330 is rotatably connected to the body of the slag box part 300; a switch mechanism 500 is installed on the body of the slag box part 300, and the switch mechanism 500 is used to control whether the discharge door 330 and the rear end of the slag box part 300 are locked.

[0044] The unloading door 330 set above is unlocked by the switch mechanism 500 before the slag box part 300 enters the unloading process. As the slag box part 300 rotates, the unloading door 330 remains almost vertical under the action of gravity, so that the unloading door 330 and the slag box part 300 rotate relative to each other, and the tail end of the slag box part 300 is opened to automatically form a unloading port, so that unloading is carried out smoothly. After unloading is completed, the lifting oil rod is retracted, the slag box part 300 rotates back, and the unloading door 330 automatically returns to its original position, and the unloading door 330 and the tail end of the slag box part 300 are locked again by the switch mechanism 500 to prepare for the next material receiving.

[0045] In the preferred process method: according to the production process, after the reduction furnace completes the reduction of crude magnesium, the waste slag in the reduction tank needs to be discharged and shipped to the slag yard within the specified time according to the control process, and then returned to the reduction furnace, and then the cycle operation is continued.

[0046] Regarding the adjustment of the switch mechanism 500 between the locked and unlocked states of the discharge door 330, a common method is to control the switch mechanism 500 alone, and this control also needs to be combined with the monitoring of the position of the transport part 200 on the track 100, which often involves great complexity.

[0047] In this embodiment, a switch mechanism 500 is provided. Figure 2 , Figure 5 and Figure 6 , the switch mechanism 500 is combined with the unloading device 400. Specifically, the switch mechanism 500 includes a door hook 510 and an elastic reset member 520, the door hook 510 includes a head, a body and a tail connected in sequence, one end of the elastic reset member 520 is connected to the body of the slag box part 300, and the other end of the elastic reset member 520 is connected to the head of the door hook 510, the door hook 510 is rotatably connected to the body of the slag box part 300 at the body, a protrusion 511 is provided on the upper edge of the body of the door hook 510, and a hook portion 512 is provided on the lower edge of the tail of the door hook 510, and the unloading fork body 430 is provided with a collision block 431 matched with the protrusion 511, and the collision block 431 is configured to collide with the protrusion 511 to separate the hook portion 512 from the cross bolt 331 of the unloading door 330, and to disengage from the protrusion 511 to make the hook portion 512 abut against the cross bolt 331 of the unloading door 330.

[0048] The specific instructions are as follows: Figure 6 Two positions of the door hook 510 are shown in FIG. 1 , wherein the dotted line state indicates the position change of the upper edge protrusion 511 of the door hook 510 after being hit by the collision block 431 of the unloading fork body 430, and the position change corresponds to the elastic reset member 520 being stretched ( Figure 6 During the process from the solid line state to the dotted line state, the elastic return member 520 is stretched, and during the process from the dotted line state to the solid line state, the elastic return member 520 restores the original installation length), and the door hook 510 is deflected relative to the slag box part 300; when unloading is completed, as the unloading device and the slag box part 300 are separated from each other, specifically after the collision block 431 of the unloading fork body 430 moves away from the switch mechanism 500, the switch mechanism 500 restores its original state under the action of the elastic return member 520, and continues to be stuck with the cross bolt 331 of the unloading door 330 to lock the unloading door 330 to the slag box part 300.

[0049] The elastic reset member 520 in the switch mechanism 500 may be in the form of a spring, such as Figure 6 As shown, it can also be made of other elastic materials.

[0050] It should also be pointed out that the collision time point of the collision block 431 and the door hook 510 is specifically when the transport part 200 carries the slag box part 300 and approaches the unloading point of the slag yard. The two unloading fork bodies 430 are respectively inserted into the unloading fork starting points on both sides of the slag box part 300. After the slag box part 300 stops, the lifting cylinder 420 is activated to lift and flip the slag box part 300 to realize slag unloading.

[0051] Optionally, the upper edge of the transport part 200 and the lower edge of the slag box part 300 are equipped with mutually matching limit blocks 210, such as Figure 2 As shown, the slag box part 300 is placed on the transport part 200 to limit the freedom of the front-to-back direction and the left-to-right direction of the slag box part 300. The front-to-back direction of the slag box part 300 described here is specifically the vehicle length direction of the transport part 200, and the left-to-right direction of the slag box part 300 is also the direction toward the left and right sides of the slag box part 300.

[0052] Please refer to Figure 2 In order to facilitate the detachment of the slag box part 300 from the transport part 200, the contact surface of the opposite limit block 210 is set to be inclined, and the inclined surface plays a guiding role when the slag box part 300 is put back on the transport part 200.

[0053] Optionally, see Figure 3 The slag box 300 includes an outer box 341 located at the outer layer, an inner box 342 located at the inner layer, and a heat insulation layer 343 disposed between the outer box 341 and the inner box 342. The top of the outer box 341 is open to facilitate the replacement of the inner box 342, and the slag receiving port 310 is opened at the top of the inner box 342. The structural strength requirements of the slag box 300 are met by designing the outer box 341 according to the load-bearing structure; the heat insulation layer 343 is disposed between the outer box 341 and the inner box 342 to prevent the high temperature of the inner box from having adverse effects on external mechanical devices; since the inner wall of the inner box 342 is in direct contact with the high-temperature slag, in order to increase its service life, a high-temperature resistant and wear-resistant material is coated on the inner surface of the inner box 342 to form a high-temperature resistant and wear-resistant layer made of the high-temperature resistant and wear-resistant material.

[0054] The inner box body 342 and the outer box body 341 may be connected together by bolts or by other connection methods, such as mortise and tenon structure, which is not limited here.

[0055] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A track-type slag transport and unloading system based on automated operation, characterized in that: The track-type slag transport and unloading system comprises: Tracks, extending from the slag receiving point under the furnace to the slag dump unloading point; A transport unit, movably arranged along the track; A slag box part is placed on the transport part, and when the transport part is located at the slag receiving point under the furnace, the slag box part performs a material receiving process; An unloading device is arranged before the unloading point of the slag field, and the unloading device is used to realize the unloading process of the slag box part when the transport part is located at the unloading point of the slag field; The unloading device comprises: The seat body is fixedly installed on the ground; Two lifting cylinders are respectively arranged on the left and right sides of the track, and the bottom ends of the lifting cylinders are rotatably connected to the seat body; and Two unloading forks are respectively arranged on the left and right sides of the track, the unloading forks are rotatably connected to the top of the lifting cylinder located on the same side of the track, the unloading forks are also rotatably connected to the seat body, and the tail of the unloading fork is also provided with a fork unloading baffle, the fork unloading baffle is used to limit the slag box part when the slag box part is turned over; The left and right sides of the body of the slag box part are provided with opening grooves as the starting points of the unloading forks, and the unloading forks are inserted into the opening grooves during the unloading process of the slag box part; A discharge door is arranged on the tail end face of the slag box, and the top end of the discharge door is rotatably connected to the body of the slag box; The body of the slag box is equipped with a switch mechanism, which is used to control whether the discharge door and the tail of the slag box are locked; The switch mechanism includes a door hook and an elastic reset member, the door hook includes a head, a body and a tail that are connected in sequence, one end of the elastic reset member is connected to the body of the slag box, and the other end of the elastic reset member is connected to the head of the door hook, the door hook is rotatably connected to the body of the slag box at the body, a protrusion is provided on the upper edge of the body of the door hook, and a hook is provided on the lower edge of the tail of the door hook, and the unloading fork body is provided with a collision block that cooperates with the protrusion, and the collision block is configured to collide with the protrusion to separate the hook from the cross bolt of the unloading door, and to disengage from the protrusion to allow the hook to abut against the cross bolt of the unloading door.

2. The track-type slag transport and unloading system according to claim 1, characterized in that: A slag receiving opening is provided on the top of the slag box part, and the slag receiving opening is used to realize the material receiving process of the slag box part when the transport part is located at the slag receiving point under the furnace.

3. The track-type slag transport and unloading system according to claim 1, characterized in that: The upper edge of the transport part and the lower edge of the slag box part are installed with mutually matching limiting blocks to limit the freedom of the slag box part in the front-to-back direction and the left-to-right direction when the slag box part is placed on the transport part.

4. The track-type slag transport and unloading system according to claim 2, characterized in that: The slag box part includes an outer box body located at the outer layer, an inner box body located at the inner layer, and a heat insulation layer arranged between the outer box body and the inner box body. The top of the outer box body is open, and the slag receiving port is opened at the top of the inner box body.

5. The track-type slag transport and unloading system according to claim 4, characterized in that: The inner surface of the inner box is coated with a high temperature resistant and wear-resistant layer made of high temperature resistant and wear-resistant material.

6. The track-type slag transport and unloading system according to claim 2, characterized in that: The elastic return member comprises a spring.

7. The track-type slag transport and unloading system according to claim 1, characterized in that: The rotatable connection between the lifting cylinder and the seat body is lower than the rotatable connection between the unloading fork body and the seat body.

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