Tar residue box lifting device and working method thereof

Abstract

The invention relates to a tar residue box lifting device and a working method thereof. The tar residue box lifting device comprises a hoisting frame and a lifting device, a lifting slide rail and a walking guide rail are arranged in the hoisting frame; during hoisting, the tar residue box is connected with the lifting device through a steel wire rope and ascends and descends along the lifting channel; a turnover guide rail is arranged in the middle of the lifting channel, and the tar residue box can move to a batching position along the turnover guide rail and the walking guide rail. According to the invention, the lifting device is matched with the lifting slide rail and the walking guide rail, so that the operations of lifting, descending, transversely moving to a batching position and the like of the tar residue box are realized, the working efficiency is greatly improved, and the labor intensity is reduced; the tar residue box is in a closed state in the moving process, so that no pollution is caused to the environment, the safety production coefficient and the environmental protection level of a factory are improved, and a powerful guarantee is provided for normal production.

Description

Technical Field

[0001] The present invention relates to the technical field of tar residue recycling, and in particular to a tar residue box lifting device and a working method thereof. Background Art

[0002] During the coke oven production process, high-temperature coke oven gas (COG) is condensed and cooled in the gas header or in the primary cooler. High-boiling-point organic compounds condense from the gas into a semi-solid form of coal tar. Simultaneously, pulverized coal, semi-coke, and other materials entrained in the COG mix with the coal tar, forming a sticky tar residue. This tar residue is black, muddy, and easily agglomerated. Its main components include heavy tar, carbon particles, ash, and a small amount of organic matter, and it is typically treated as solid waste. Because it contains combustible components and potentially harmful substances (such as polycyclic aromatic hydrocarbons and heavy metals), direct discharge can pollute the environment. However, through appropriate recycling, it can be converted into a valuable resource.

[0003] Repurposing (i.e., reusing) tar residue can reduce waste emissions and improve resource utilization. Common repurposing methods include: (1) adding it to coking coal; (2) mixing it with coal and using it as fuel; (3) mixing it with coal powder and binder and pressing it into shaped coal; (4) returning it to the tar processing system, dissolving it in light tar, and extracting useful components through distillation.

[0004] Currently, coking enterprises often use tar slag boxes to return tar slag to coke ovens for coking. There are two operating methods: one is that the tar slag box is located close to the ground. In this case, a forklift is used to lift the tar slag box to the discharge platform above the ground belt conveyor. The tar slag in the tar slag box is discharged onto the belt conveyor carrying charging coal and is sent to the coke oven for coking as charging coal. The other is that the tar slag box is located far from the ground. In this case, the tar slag in the tar slag box needs to be poured into the hopper of a single-bucket elevator. The single-bucket elevator is used to transport the tar slag to the tar slag storage tank above the high belt conveyor. The tar slag is then discharged onto the belt conveyor carrying charging coal and is sent to the coke oven for coking as charging coal. The main problems with the second method are: 1) the tar slag in the tar slag box needs to be transferred twice before it can be added to the coal charge, which is inefficient; 2) the tar slag transfer and discharge process requires manual lifting, manual control of lifting, and manual control of the tar slag storage tank discharge, which is labor-intensive, has a harsh operating environment, and is unsafe. Summary of the Invention

[0005] The present invention provides a tar slag box lifting device and a working method thereof, wherein the lifting device cooperates with a lifting slide rail and a running guide rail to realize operations such as lifting, lowering, and horizontal movement of the tar slag box to a batching position, thereby greatly improving operating efficiency and reducing labor intensity; the tar slag box is in a closed state during the movement process and does not pollute the environment, thereby improving the safety production coefficient and environmental protection level of the factory area and providing a strong guarantee for normal production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A tar slag box lifting device is used to lift the tar slag box to the batching position above the belt conveyor; the tar slag box lifting device includes a lifting frame and a lifting device; the lifting frame is arranged on the periphery of the belt conveyor, the lifting frame is provided with a lifting channel on one side of the belt conveyor, and a lifting device is provided on the other side of the belt conveyor, and a running guide rail is provided in the lifting frame, and the running guide rail is inclined above the belt conveyor; the initial lifting position of the tar slag box is at the bottom of the lifting channel, and during lifting, the top of the tar slag box is connected to the lifting device through a wire rope, and the tar slag box can be lifted and moved along the lifting channel under the action of the lifting device; a turning guide rail is provided in the middle of the lifting channel, and one end of the turning guide rail is rotatably connected to one end of the running guide rail, and the batching position of the tar slag box is provided on the running guide rail, and the tar slag box can move to the batching position along the turning guide rail and the running guide rail.

[0008] The bottom of the lifting channel is provided with an alignment slot, and the bottom of the tar slag box is correspondingly provided with an alignment block.

[0009] Four vertical lifting rails are provided in the lifting channel, including two inner lifting rails close to the belt conveyor and two outer lifting rails away from the belt conveyor; a bottom rail-turning section is provided at the bottom of the outer lifting rail, and the bottom rail-turning section is rotationally connected to the outer lifting rails through a bottom flipping motor. When the bottom rail-turning section is in a vertical state, it is connected to the outer lifting rails, and driven by the bottom flipping motor, the bottom rail-turning section can rotate toward the outside of the outer lifting rails; a middle rail-turning section is provided in the middle of the inner lifting rail, and the middle rail-turning section is rotationally connected to the inner lifting rails through a middle flipping motor. When the middle rail-turning section is in a vertical state, the top is connected to the upper inner lifting rail, and the bottom is connected to the flip guide rail when the lower part is in a vertical state; driven by the middle flipping motor, the middle rail-turning section can rotate toward the outside of the inner lifting rail.

[0010] The bottom turning motor and the middle turning motor both adopt servo motors.

[0011] The flip guide rail is rotationally connected to the running guide rail via a flip motor, and the flip motor adopts a worm reduction motor.

[0012] The lifting device is a winch, with pulley 1 and fixed pulley 2 set on the top of the lifting frame. One end of the wire rope is connected to the winch, and the other end goes around fixed pulley 1 and fixed pulley 2 upward, and then connects to the tar slag box downward.

[0013] A top cover is provided on the top of the tar slag box, and the top cover is detachably fixedly connected to the tar slag box body; the steel wire rope is connected to the top cover via a quick connector.

[0014] The tar slag box is provided with an outer running wheel group on the side corresponding to the outer lifting slide rail, and an inner running wheel group on the side corresponding to the inner lifting slide rail; wherein, the connection between the running wheel axis at the bottom of the outer running wheel group and the running wheel axis at the bottom of the inner running wheel group is parallel to the running guide rail.

[0015] The running guide rail is provided with a vehicle stop at a material dispensing position corresponding to the tar slag box.

[0016] A working method of a tar slag box lifting device comprises the following steps:

[0017] 1) Before lifting the tar slag box, the lifting rails in the lifting channel are in the initial state, that is, the bottom turning rail section, the middle turning rail section and the turning guide rail are all in a vertical state, and the outer lifting rails and the inner lifting rails are continuous guide rails;

[0018] 2) When lifting the tar slag box, the bottom flip motor is started to open the bottom flip rail section to the two sides of the outward lifting slide rail; the tar slag box is sent into the lifting channel of the lifting frame by a forklift, and the alignment block at the bottom of the tar slag box is matched with the alignment slot at the bottom of the lifting channel to make the tar slag box located in the initial lifting position, and the inner running wheel group of the tar slag box is close to the inner lifting slide rail;

[0019] 3) The bottom turning motor rotates in the opposite direction, so that the bottom turning rail section is connected with the outer lifting slide rail to form a continuous vertical guide rail, and the bottom turning rail section is close to the outer running wheel group of the tar slag box;

[0020] 4) Connect the tar slag box to the steel wire rope led out from the lifting device through a quick connector, start the lifting device, and lift the tar slag box with the steel wire rope to move the tar slag box vertically upward along the lifting channel;

[0021] 5) When the tar slag box is lifted to the top of the middle track turning section, the lifting device stops moving;

[0022] 6) The flip motor starts, causing the flip guide rail to rotate into the lifting channel until it is at the same inclination angle as the running guide rail; the lifting device rotates in the opposite direction, driving the tar slag box to move down along the lifting channel until the outer running wheel set and the inner running wheel set at the bottom are in contact with the flip guide rail;

[0023] 7) The middle turning motor starts, opens the middle turning section to both sides of the lifting guide rail, and the lifting device starts again, releasing the wire rope, so that the tar slag box moves onto the running guide rail and moves down along the running guide rail;

[0024] 8) When the tar slag box descends to the batching position, it stops under the action of the vehicle stop, and the lifting device stops accordingly;

[0025] 9) The tar residue outlet valve on the tar residue box is started to discharge the tar residue onto the belt conveyor below. The tar residue and the charging coal transported on the belt conveyor are sent into the coke oven for coking.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1) The winch is used in conjunction with the lifting slide rail and the running guide rail to realize the lifting, lowering and horizontal movement of the tar slag box to the batching position. The operation is convenient and fast, and it is easy to realize automatic control, which can greatly improve the working efficiency and reduce the labor intensity.

[0028] 2) By providing a bottom turning rail section at the bottom of the outer lifting slide rail, the tar slag box can be easily placed into the lifting channel using a forklift; the turning guide rail is used to achieve docking with the running guide rail; by providing a middle turning rail section in the middle of the inner lifting slide rail, the tar slag box can be easily moved along the running guide rail to the batching position, the overall structure is simple and space-saving;

[0029] 3) The tar slag box is always in a closed state during the lifting and moving process, which does not pollute the environment, improves the safety production coefficient and environmental protection level of the factory, and provides a strong guarantee for normal production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a tar slag box lifting device according to the present invention. Figure 1 .

[0031] Figure 2 This is a schematic diagram of the structure of a tar slag box lifting device according to the present invention. Figure 2 .

[0032] Figure 3 yes Figure 2 Enlarged view of part I.

[0033] Figure 4 This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 1 .

[0034] Figure 5 This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 2 .

[0035] Figure 6This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 3 .

[0036] Figure 7 This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 4 .

[0037] Figure 8 This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 5 .

[0038] Figure 9 This is a schematic diagram of the working process of a tar slag box lifting device described in the present invention. Figure 6 .

[0039] Figure: 1. Lifting Frame 101. Lifting Channel 102. Alignment Slot 103. Outer Lifting Rail 103. Bottom Flipping Rail Section 104. Inner Lifting Rail 104. Middle Flipping Rail Section 105. Flipping Guide Rail 106. Traveling Guide Rail 107. Vehicle Stop 108. Vehicle Stop Wiring Slot 2. Tar Slag Box 201. Tar Slag Box Body 202. Top Cover 203. Traveling Wheels 204. Tar Slag Box Wiring Slot 205. Alignment Block 206. Tar Slag Outlet Valve 3. Lifting Device 301. Winch 302. Fixed Pulley 1 303. Fixed Pulley 2 304. Wire Rope 305. Quick Connector 4. Belt Conveyor 5. Forklift DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0041] like Figure 1-Figure 3 As shown, the tar slag box lifting device of the present invention is used to lift the tar slag box 3 to the batching position above the belt conveyor 4; the tar slag box lifting device includes a lifting frame 1 and a lifting device 3; the lifting frame 1 is arranged on the periphery of the belt conveyor 4, the lifting frame 1 is provided with a lifting channel 101 on one side of the belt conveyor 4, and the lifting device 3 is provided on the other side of the belt conveyor 4, and a running guide rail 106 is provided in the lifting frame 1, and the running guide rail 106 is inclined above the belt conveyor 4; the initial position of the tar slag box 2 The hoisting position is at the bottom of the lifting channel 101. During lifting, the top of the tar slag box 2 is connected to the lifting device 3 through a steel wire rope 304. Under the action of the lifting device 3, the tar slag box 2 can be lifted and moved along the lifting channel 101; a flip guide rail 105 is provided in the middle of the lifting channel 101, and one end of the flip guide rail 105 is rotatably connected to one end of the running guide rail 106. The batching position of the tar slag box 2 is provided on the running guide rail 106, and the tar slag box 2 can move to the batching position along the flip guide rail 105 and the running guide rail 106.

[0042] The bottom of the lifting channel 101 is provided with an alignment slot 102 , and the bottom of the tar slag box 2 is correspondingly provided with an alignment block 205 .

[0043] The lifting channel 101 is provided with 4 vertical lifting rails, including 2 inner lifting rails 104 close to the belt conveyor 4 and 2 outer lifting rails 103 away from the belt conveyor 4; the bottom of the outer lifting rail 103 is provided with a bottom turning rail section 1031, and the bottom turning rail section 1031 is connected to the outer lifting rail 103 by a bottom turning motor. When the bottom turning rail section 1031 is in a vertical state, it is connected to the outer lifting rail 103. When the bottom turning rail section 103 is driven by the bottom turning motor, the bottom turning rail section 103 is connected to the outer lifting rail 103. 1 can rotate toward the outside of the outward lifting slide rail 103; a middle track-turning section 1041 is provided in the middle of the inner lifting slide rail 104, and the middle track-turning section 1041 is rotationally connected to the inner lifting slide rail 104 through a middle flip motor. When the middle track-turning section 1041 is in a vertical state, the top is connected to the upper inner lifting slide rail 104, and the bottom is connected to the flip guide rail 105 when the lower part is in a vertical state; driven by the middle flip motor, the middle track-turning section 1041 can rotate toward the outside of the inner lifting slide rail 104.

[0044] The bottom turning motor and the middle turning motor both adopt servo motors.

[0045] The flip guide rail 105 is rotationally connected to the running guide rail 106 via a flip motor, and the flip motor is a worm reduction motor.

[0046] The lifting device 3 is a winch 301, and a pulley 302 and a fixed pulley 303 are set on the top of the lifting frame 1. One end of the wire rope 304 is connected to the winch 301, and the other end goes around the fixed pulley 302 and the fixed pulley 303 upward, and then connects to the tar residue box 2 downward.

[0047] A top cover 202 is provided on the top of the tar slag box 2 , and the top cover 202 is detachably fixedly connected to the tar slag box body 201 ; a steel wire rope 304 is connected to the top cover 202 via a quick connector 305 .

[0048] The tar slag box 2 is provided with an outer running wheel group on the side corresponding to the outer lifting slide rail 103, and an inner running wheel group on the side corresponding to the inner lifting slide rail 104; wherein, the connection between the running wheel axis at the bottom of the outer running wheel group and the running wheel axis at the bottom of the inner running wheel group is parallel to the running guide rail 106.

[0049] The running guide rail 106 is provided with a vehicle stop 107 at the material dispensing position corresponding to the tar slag box 2 .

[0050] The working method of the tar slag box lifting device described in the present invention includes the following steps:

[0051] 1) Before lifting the tar slag box 2, the lifting rails in the lifting channel 101 are in the initial state, that is, the bottom turning rail section 1031, the middle turning rail section 1041 and the turning guide rail 105 are all in a vertical state, and the outer lifting rail 103 and the inner lifting rail 104 are both continuous guide rails;

[0052] 2) If Figure 4 As shown, when the tar slag box 2 is hoisted, the bottom flip motor is started to open the bottom flip rail section 1031 to the outside lifting rails 103 on both sides; Figure 5 As shown, the tar slag box 2 is transported into the lifting channel 101 of the lifting frame 1 by using a forklift 5. The alignment block 205 at the bottom of the tar slag box 2 cooperates with the alignment slot 102 at the bottom of the lifting channel 101 to position the tar slag box 2 in the initial lifting position. The inner running wheel set of the tar slag box 2 is pressed against the inner lifting slide rail 104.

[0053] 3) The bottom turning motor rotates in the opposite direction, so that the bottom turning rail section 1031 is connected to the outer lifting slide rail 103 to form a continuous vertical guide rail, and the bottom turning rail section 1031 is close to the outer running wheel group of the tar slag box 2;

[0054] 4) If Figure 6 As shown, the tar slag box 2 is connected to the steel wire rope 304 led out from the lifting device 3 through the quick connector 305, the lifting device 3 is started, and the tar slag box 2 is lifted by the steel wire rope 304, so that the tar slag box 2 moves vertically upward along the lifting channel 101;

[0055] 5) When the tar slag box 2 is lifted to above the middle track turning section 1041, the lifting device 3 stops moving;

[0056] 6) If Figure 7 As shown, the flip motor is started, causing the flip guide rail 105 to rotate into the lifting channel 101 until it is at the same inclination angle as the running guide rail 106; the lifting device 3 rotates in the opposite direction, driving the tar slag box 2 to move downward along the lifting channel 101 until the outer running wheel set and the inner running wheel set at the lower part are in contact with the flip guide rail 105;

[0057] 7) If Figure 8 As shown, the middle flip motor is started, the middle turning rail section 1041 is opened inwardly on both sides of the lifting guide rail 104, the lifting device 3 is started again, the wire rope 304 is released, and the tar slag box 2 is moved onto the running guide rail 106 and moves downward along the running guide rail 106;

[0058] 8) If Figure 9 As shown, when the tar slag box 2 descends to the batching position, it stops under the action of the car stop 107, and the lifting device 3 stops accordingly;

[0059] 9) The tar residue outlet valve 206 on the tar residue box 2 is started to discharge the tar residue onto the belt conveyor 4 below. The tar residue and the charging coal transported on the belt conveyor 4 are sent to the coke oven for coking.

[0060] The tar slag box hoisting and lifting device described in the present invention consists of a lifting frame 1 and a lifting device 3, which is used to move the tar slag box 2 on the ground to the batching position above the belt conveyor 4 (which carries coal for charging) and unload the tar slag therein onto the belt conveyor 4.

[0061] As a specific implementation scheme, the tar slag box 2 consists of a tar slag box body 201, a top cover 202, running wheels 203, a tar slag box wiring slot 204 and an alignment block 205. The top of the tar slag box body 201 is closed by the top cover 202, and a tar slag outlet valve 206 is provided at the tar slag outlet at the bottom of the tar slag box 2. The top cover 202 is connected to the wire rope 304 through a quick connector 305. The quick connector 305 includes a top cover side connector and a wire rope side connector. The top cover side connector is installed in the middle of the top cover 202. A plurality of running wheels 203 are arranged on both sides of the tar slag box 2. Preferably, three running wheels 203 are arranged on each side, and the three running wheels 203 on the same side are distributed in a triangle (such as Figure 3 (As shown), one running wheel 203 mates with the corresponding outer lift rail 103, and the other two running wheels 203 mate with the corresponding inner lift rails 104. A tar slag box wiring socket 204 is installed on one side of the bottom of the tar slag box 2 and is used to power the tar slag box outlet valve 206 (electric valve). An alignment block 205 is located at the bottom of the tar slag box 2.

[0062] In the present invention, the lifting system for the tar slag box 2 includes a lifting device 3 (preferably a hoist 301), fixed pulley 1 302, fixed pulley 2, wire rope 304, and a lifting frame 1 (equipped with a lifting channel 101 and a running guide rail 106). The hoist 301 is located on one side of the belt conveyor 4, the lifting channel 101 is located on the other side of the belt conveyor 4, and the running guide rail 106 is arranged at an angle above the belt conveyor 4. The hoist 301 is connected to the tar slag box 2 via a wire rope 304. The wire rope 304 is steered using fixed pulley 1 302 and fixed pulley 2 303 located at the top of the lifting frame 1. The wire rope 304 is connected to the top cover 202 of the tar slag box 2 via a quick connector 305. The bottom of the lifting channel 101 is provided with an alignment slot 102, which cooperates with the alignment block 205 at the bottom of the tar slag box 2 to ensure that the tar slag box 2 is in the initial hoisting position before lifting.

[0063] The bottom rail-turning section 1031 is located at the entrance of the tar slag box 2 into the lifting channel 101 and can be considered as part of the outer lifting rail 103. To ensure that the tar slag box 2 can enter the lifting channel 101 smoothly, the bottom rail-turning section 1031 and the outer lifting rail 103 are connected by a rotating method. The bottom rail-turning section 1031 is initially in a vertical position and is flipped open to both sides when the tar slag box 2 is lifted.

[0064] The flip rail 105 is located in the middle of the inner lifting rail 104 and at the upper end of the running rail 106. After flipping, the flip rail 105 is located on the extension line of the running rail 106. When the tar slag box 2 is lifted vertically, the flip rail 105 is in a vertical position and can be regarded as a part of the inner lifting rail 104. When the tar slag box 2 moves laterally toward the running rail 106, the flip rail 105 is inclined and serves as a connecting section for track switching.

[0065] The middle turning rail section 1041 is arranged above the turning rail 105 and can also be regarded as a part of the inner lifting slide rail 104; the initial state of the middle turning rail section 1041 is vertical, and it is turned over and opened to both sides of the inner lifting slide rail 104 when the tar residue box 2 moves horizontally toward the running guide rail 106.

[0066] The car block 107 is installed at the lower end of the running guide rail 106 , and a car block wiring slot 108 is installed at the lower part of the car block 107 for supplying power to the tar slag box wiring slot 204 .

[0067] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A tar slag box lifting device, used to lift the tar slag box to the batching position above the belt conveyor; characterized in that: The tar slag box lifting device includes a lifting frame and a lifting device; the lifting frame is arranged on the periphery of the belt conveyor, the lifting frame is provided with a lifting channel on one side of the belt conveyor, and a lifting device is provided on the other side of the belt conveyor, and a running guide rail is provided in the lifting frame, and the running guide rail is inclined above the belt conveyor; the initial lifting position of the tar slag box is at the bottom of the lifting channel, and during lifting, the top of the tar slag box is connected to the lifting device through a wire rope, and the tar slag box can be lifted and moved along the lifting channel under the action of the lifting device; a flipping guide rail is provided in the middle of the lifting channel, and one end of the flipping guide rail is rotatably connected to one end of the running guide rail, and the batching position of the tar slag box is provided on the running guide rail, and the tar slag box can move to the batching position along the flipping guide rail and the running guide rail.

2. A tar slag box lifting device according to claim 1, characterized in that: The bottom of the lifting channel is provided with an alignment slot, and the bottom of the tar slag box is correspondingly provided with an alignment block.

3. The tar slag box lifting device according to claim 1, characterized in that: Four vertical lifting rails are provided in the lifting channel, including two inner lifting rails close to the belt conveyor and two outer lifting rails away from the belt conveyor; a bottom rail-turning section is provided at the bottom of the outer lifting rail, and the bottom rail-turning section is rotationally connected to the outer lifting rails through a bottom flipping motor. When the bottom rail-turning section is in a vertical state, it is connected to the outer lifting rails, and driven by the bottom flipping motor, the bottom rail-turning section can rotate toward the outside of the outer lifting rails; a middle rail-turning section is provided in the middle of the inner lifting rail, and the middle rail-turning section is rotationally connected to the inner lifting rails through a middle flipping motor. When the middle rail-turning section is in a vertical state, the top is connected to the upper inner lifting rail, and the bottom is connected to the flip guide rail when the lower part is in a vertical state; driven by the middle flipping motor, the middle rail-turning section can rotate toward the outside of the inner lifting rail.

4. A tar slag box lifting device according to claim 3, characterized in that: The bottom turning motor and the middle turning motor both adopt servo motors.

5. The tar slag box lifting device according to claim 1, characterized in that: The flip guide rail is rotationally connected to the running guide rail via a flip motor, and the flip motor adopts a worm reduction motor.

6. The tar slag box lifting device according to claim 1, characterized in that: The lifting device is a winch, with pulley 1 and fixed pulley 2 set on the top of the lifting frame. One end of the wire rope is connected to the winch, and the other end goes around fixed pulley 1 and fixed pulley 2 upward, and then connects to the tar slag box downward.

7. The tar slag box lifting device according to claim 1, characterized in that: A top cover is provided on the top of the tar slag box, and the top cover is detachably fixedly connected to the tar slag box body; the steel wire rope is connected to the top cover via a quick connector.

8. The tar slag box lifting device according to claim 1, characterized in that: The tar slag box is provided with an outer running wheel group on the side corresponding to the outer lifting slide rail, and an inner running wheel group on the side corresponding to the inner lifting slide rail; wherein, the connection between the running wheel axis at the bottom of the outer running wheel group and the running wheel axis at the bottom of the inner running wheel group is parallel to the running guide rail.

9. The tar slag box lifting device according to claim 1, characterized in that: The running guide rail is provided with a vehicle stop at a material dispensing position corresponding to the tar slag box.

10. An operating method of the tar slag box lifting device according to any one of claims 1 to 9, characterized in that: The steps include: 1) Before lifting the tar slag box, the lifting rails in the lifting channel are in the initial state, that is, the bottom turning rail section, the middle turning rail section and the turning guide rail are all in a vertical state, and the outer lifting rails and the inner lifting rails are continuous guide rails; 2) When lifting the tar slag box, the bottom flip motor is started to open the bottom flip rail section to the two sides of the outward lifting slide rail; the tar slag box is sent into the lifting channel of the lifting frame by a forklift, and the alignment block at the bottom of the tar slag box is matched with the alignment slot at the bottom of the lifting channel to make the tar slag box located in the initial lifting position, and the inner running wheel group of the tar slag box is close to the inner lifting slide rail; 3) The bottom turning motor rotates in the opposite direction, so that the bottom turning rail section is connected with the outer lifting slide rail to form a continuous vertical guide rail, and the bottom turning rail section is close to the outer running wheel group of the tar slag box; 4) Connect the tar slag box to the steel wire rope led out from the lifting device through a quick connector, start the lifting device, and lift the tar slag box with the steel wire rope to move the tar slag box vertically upward along the lifting channel; 5) When the tar slag box is lifted to the top of the middle track turning section, the lifting device stops moving; 6) The flip motor starts, causing the flip guide rail to rotate into the lifting channel until it is at the same inclination angle as the running guide rail; the lifting device rotates in the opposite direction, driving the tar slag box to move down along the lifting channel until the outer running wheel set and the inner running wheel set at the bottom are in contact with the flip guide rail; 7) The middle turning motor starts, opens the middle turning section to both sides of the lifting guide rail, and the lifting device starts again, releasing the wire rope, so that the tar slag box moves onto the running guide rail and moves down along the running guide rail; 8) When the tar slag box descends to the batching position, it stops under the action of the vehicle stop, and the lifting device stops accordingly; 9) The tar residue outlet valve on the tar residue box is started to discharge the tar residue onto the belt conveyor below. The tar residue and the charging coal transported on the belt conveyor are sent into the coke oven for coking.

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