Turnover type discharging coal blending device and method

Abstract

The invention relates to the technical field of tar residue coal blending, in particular to a coal blending device and method capable of achieving overturning type discharging, and the coal blending device capable of achieving overturning type discharging comprises a coal blending device and a coal blending device capable of achieving overturning type discharging. Comprising a belt conveyor, a ball forming mill mounted at the tail end of the belt conveyor, a chute mounted above the belt conveyor, a tar dry residue adding device mounted on the chute, and an electric turnover unloading device mounted on the tar dry residue adding device, the electric turnover discharging device comprises a batching tank mounted on the tar dry slag adding device and a turnover mechanism mounted on the batching tank, the turnover mechanism is used for turning over the slag box, the belt conveyor is used for conveying matched dry slag and coking coal to the ball forming mill, and the ball forming mill is used for preparing the dry slag and the coking coal into tar coal briquettes; the design of the detachable slag box is combined with forklift transfer and turnover unloading, the transportation process is simplified, the equipment maintenance requirement is reduced, and the transportation and cleaning cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tar residue coal blending, and in particular to a coal blending device and method with turnover-type unloading. Background Art

[0002] Tar residue is a viscous, easily sticky waste residue produced during the coking process. Its main components are coke powder, coal dust, coal tar, and asphalt. Traditional coal chemical companies generally transport tar residue to coal yards for storage or sell it at low prices as fuel. However, this treatment method not only seriously pollutes the environment but also wastes resources. However, tar residue has a high carbon content and a low ash content. Coking after fully mixing coal powder and coking waste tar residue with blending coal can increase coke production and gas yield without affecting the quality of the coke. In this way, not only is the coking waste reused, but the waste residue treatment costs and environmental governance pressure are reduced, while the quality of the coke will not be reduced. Therefore, using the separated tar residue for coal blending can fully reuse the resource and reduce pollution.

[0003] At present, tar slag coal blending is generally separated from the mechanized tar ammonia clarification tank by sedimentation and then put into the transport vehicle, and transported to the tar slag coal blending section, and then put into the coal conveyor for blending. However, this coal blending method has high transportation costs, and the dry slag is easily lost during transportation. The impact force of the transport vehicle dumping the dry slag is large, and it is easy to damage the equipment if it is poured directly on the coal blending conveying section. If it is poured on the site, it will not only take up space, but also incur secondary transportation costs. In addition, the transport vehicle has a large loading capacity, and the accumulated dry slag is easy to adhere to the vehicle, resulting in a large amount of dry slag that cannot be unloaded, which is troublesome to clean up.

[0004] Therefore, to address the above problems, a coal blending device with flipping unloading can be designed. By transporting with a forklift, the coal can be mechanically flipped and unloaded to improve mechanical utilization and transportation efficiency, and reduce the transportation, loss and cleaning costs of dry slag recycling and coal blending. Summary of the Invention

[0005] In order to overcome the problems of high transportation cost, low unloading efficiency and difficulty in cleaning residual dry slag in traditional tar residue coal blending.

[0006] The technical solution of the present invention is: a coal blending device with a turnover type unloading, comprising a belt conveyor, a chute installed above the belt conveyor, a tar dry slag adding device installed on the chute, and an electric turnover unloading device installed on the tar dry slag adding device. The electric turnover unloading device comprises a batching trough installed on the tar dry slag adding device and a turnover mechanism installed on the batching trough. The turnover mechanism is used to flip the slag box (a detachable container for loading dry slag, with an open side on the top for unloading, which serves as a dry slag collection container at the end of the existing tar dry slag separation system to collect dry slag). After that, it is transported to the coal blending workshop by a forklift). When the slag box is flipped to the preset angle, the dry slag is unloaded from the slag box and passes through the batching trough, the tar dry slag adding device and the chute in sequence until it falls into the belt conveyor. The pelletizing machine makes the matched dry slag and coking coal transported by the belt conveyor into tar coal blocks for coking (the belt conveyor is used to transport the matched dry slag and coking coal to the pelletizing machine. The pelletizing machine is used to make tar coal blocks from dry slag and coking coal. The pelletizing machine is a device that makes powdered or granular materials into spherical particles through physical or mechanical action. Its working principle is briefly summarized as follows: dry slag and coke are transported to the pelletizing machine. The coal is fed into the tilted rotating disc in the pelletizing machine and rolls along the inner wall of the disc under the combined action of centrifugal force, friction and gravity. After being moistened by pre-adding water or a binder, the material gradually agglomerates into a mother ball. During the rolling process, it continuously collides and squeezes, eventually forming spherical particles. Qualified particles overflow from the edge of the disc, and unqualified particles are screened and returned for further processing. The turning mechanism includes a stand mounted on the feed trough, a bogie movably connected to the stand, a drive assembly mounted on the stand, and a locking assembly mounted on the bogie. The input end of the bogie is connected to the output end of the drive assembly. The bogie is provided with a bayonet that is compatible with the slag box (the U-shaped structure on the bogie is compatible with the cross-sectional size of the slag box), the locking assembly is used to fix the slag box on the bogie, and the driving assembly is used to drive the bogie to rotate; the turning mechanism also includes a transmission assembly, a gas supply assembly and a nozzle installed on the platform. The input end of the transmission assembly is connected to the output end of the drive assembly, the input end of the gas supply assembly is connected to the output end of the transmission assembly, and the gas supply assembly is connected to the nozzle. When the bogie rotates, the driving assembly controls the gas flow between the gas supply assembly and the nozzle through the transmission assembly.

[0007] Preferably, the tar dry slag adding device includes a screw conveyor installed on the chute, the feeding trough includes a material trough installed on the outer shell of the screw conveyor and an electric unloading valve installed on the discharge end of the material trough, the electric unloading valve is used to open or close the discharge end of the material trough, when the belt conveyor is started for 30 minutes (when the belt conveyor runs for about 30 minutes, coking coal begins to appear under the chute, at this time the electric unloading valve and the screw conveyor are started, and the dry slag just matches the coking coal), the electric unloading valve opens the discharge end, and the screw conveyor is used to transport the dry slag into the chute at a preset rate.

[0008] Preferably, the driving assembly includes a motor mounted on a platform, a driving gear shaft mounted on an output end of the motor, and a passive gear shaft movably connected to the platform, and the bogie is provided with a gear ring meshing with the driving gear shaft and the passive gear shaft, the driving gear shaft is used to transmit power from the motor to the bogie, and the bogie is used to transmit power to the passive gear shaft; the locking assembly includes a hydraulic press mounted on the bogie and a locking frame mounted on the output end of the hydraulic press, the hydraulic press is used to drive the locking frame close to or away from the slag box, and when the locking frame approaches until it contacts the open side of the slag box, the slag box is locked in the bayonet of the bogie (the motor meshes with the gear ring on the bogie through the driving gear shaft to transmit power to the bogie; the bogie meshes with the passive gear shaft through the gear ring to transmit the remaining power to the passive gear shaft, thereby realizing two-way power output).

[0009] Preferably, the transmission assembly includes a transmission gear and a gear sleeve movably connected to the platform and a screw threadedly connected to the gear sleeve. The input end of the air supply assembly is fixedly connected to the screw, the transmission gear is engaged with the passive gear shaft, and the gear sleeve is engaged with the transmission gear. When the bogie rotates, the screw is driven to move in a preset direction through the sequential engagement transmission of the passive gear shaft, the transmission gear and the gear sleeve.

[0010] Preferably, the gas delivery assembly includes an air cavity mounted on a stand, a plunger movably connected in the air cavity, and an air delivery pipe with one end connected to the air cavity. The plunger is fixedly connected to a lead screw, and the other end of the air delivery pipe is connected to a nozzle. The lead screw is used to drive the plunger to move in the air cavity. When the plunger moves in the air cavity, the gas flows between the air cavity and the nozzle.

[0011] Preferably, a synchronization component is installed on the electric flip unloading device, the input end of the synchronization component is connected to the output end of the transmission component, the output end of the synchronization component is fixedly connected to the nozzle, and a sensing unit is installed on the synchronization component. When the bogie rotates, the sensing unit is used to send a signal to the control unit of the drive component, and the drive component drives the nozzle to rotate through the transmission component and the synchronization component; when the bogie rotates to 120 degrees, the sensing unit detects a signal value of F1, and when the bogie rotates to 150 degrees, the sensing unit detects a signal value of F2; when the drive component drives the bogie to rotate back and forth between 120 degrees and 150 degrees, the air outlet of the nozzle rotates to the open side of the slag box, and the gas flows from the nozzle to the slag box; the control unit of the drive component counts the number of reciprocating rotations of the bogie through a counter, and when the number of rotations reaches N, the drive component drives the bogie to rotate back to 0 degrees; a continuous follow-up device is installed on the feeding trough. The bogie comprises a continuous follower assembly and an intermittent follower assembly, a baffle is installed on the output end of the intermittent follower assembly, the input end of the continuous follower assembly is connected to the output end of the synchronization assembly, and a reset unit is installed on the intermittent follower assembly; when the bogie rotates between 0 degrees and 100 degrees, the output end of the continuous follower assembly is disconnected from the input end of the intermittent follower assembly; when the bogie rotates between 100 degrees and 150 degrees, the output end of the continuous follower assembly is connected to the input end of the intermittent follower assembly, and the driving assembly drives the baffle to flip through the transmission assembly, the synchronization assembly, the continuous follower assembly and the intermittent follower assembly; when the bogie rotates from 0 degrees to 100 degrees, the baffle is stationary and is on the air outlet side of the nozzle; when the bogie rotates from 100 degrees to 120 degrees, the baffle flips to above the air outlet of the nozzle; when the bogie rotates from 120 degrees to 150 degrees, the baffle flips to the other side of the air outlet of the nozzle.

[0012] Preferably, the synchronization assembly includes a linkage gear shaft movably connected to the stand, a synchronization wheel mounted on the linkage gear shaft, another synchronization wheel movably connected to the feeding trough, a synchronization belt transmission-connected to the two synchronization wheels, a tensioning wheel movably connected to the feeding trough (the tensioning wheel is used to adjust the transmission tension to avoid slipping), a worm and a worm wheel, the linkage gear shaft is meshed with a gear sleeve, the worm is fixedly connected to one of the synchronization wheels, the worm is helically meshed with the worm wheel, the nozzle is fixedly mounted on the worm wheel, the gear sleeve is used to drive the linkage gear shaft and the corresponding synchronization wheel to rotate, and drives the other synchronization wheel and the corresponding worm to rotate through the synchronization belt. The worm is used to drive the worm wheel and the corresponding nozzle to rotate; the sensing unit includes a torsion spring and a torque sensor installed on the linkage gear shaft (the torsion spring is fixedly connected between the linkage gear shaft and the platform. When the bogie rotates, the torsion spring generates torque; the torque sensor detects the torsion spring torque value in real time and transmits the signal to the control unit of the drive component to trigger the threshold judgment of the bogie rotation angle). The torque sensor is used to detect the torque value of the torsion spring. When the bogie rotates to 120 degrees, the torque sensor detects that the torque value of the torsion spring is F1. When the bogie rotates to 150 degrees, the torque sensor detects that the torque value of the torsion spring is F2.

[0013] Preferably, the continuous follower assembly includes a No. 1 follower gear and a No. 2 follower gear movably connected to the batching trough and a gear piece fixedly connected to the No. 2 follower gear, the No. 1 follower gear is fixedly connected to the worm, and the No. 1 follower gear is meshed with the No. 2 follower gear. When the worm rotates, the No. 1 follower gear drives the No. 2 follower gear to rotate; the intermittent follower assembly includes a No. 3 follower gear movably connected to the batching trough and a support rod fixedly connected to the No. 3 follower gear, and the support rod is fixedly connected to the baffle; when the bogie is at 0 degrees to 10 degrees, the No. 1 follower gear is fixedly connected to the No. 2 follower gear. When the bogie rotates between 100 and 150 degrees, the No. 3 follower gear is disconnected from the gear plate; when the bogie rotates between 100 and 150 degrees, the No. 3 follower gear is engaged with the gear plate, and the gear plate drives the baffle to flip over through the No. 3 follower gear and the support rod (the gear plate is actually a toothless gear, and its teeth are distributed within a specific angle range. In this scheme, this specific angle range corresponds to the rotation angle of the No. 2 follower gear when the bogie rotates between 100 and 150 degrees. There are no teeth at other angles, that is, the angle range that is never engaged with the No. 3 follower gear).

[0014] Preferably, a return spring is installed on the No. 3 follower gear, and a support arm is installed on the dosing trough (a rigid bracket installed on the dosing trough, used to limit the initial position of the baffle, and a flexible gasket can also be installed on its surface to prevent the baffle from colliding when it is flipped and reset). When the bogie rotates between 0 degrees and 100 degrees, the return spring flips the baffle to the side of the air outlet of the nozzle through its own elastic force until the baffle contacts the support arm.

[0015] A coal blending method with a turnover type unloading adopts the coal blending device with a turnover type unloading as described above, comprising the following steps: S1: A forklift transports the slag box containing dry slag to the coal blending workshop, then forks the slag box into the bayonet of the bogie. A worker stands in the safe area of ​​the workshop and operates the control system to start the coal blending device. S2: Start the hydraulic press and control the locking frame to approach the slag box until it presses the open side of the slag box so that the slag box is locked in the bayonet; S3: Then the staff starts the motor, and through the meshing transmission effect of the active gear shaft and the ring gear on the bogie, the bogie and the locked slag box are controlled to rotate in the D2 direction. During the rotation, the bogie is connected to the passive gear shaft through the meshing connection of the ring gear, driving the passive gear shaft to rotate. Then, through the meshing effect of the passive gear shaft, the transmission gear and the gear sleeve, the lead screw is driven to move, and the lead screw drives the plunger to move in the air cavity, so that the gas flows between the air cavity and the nozzle through the gas pipe; At the same time, the linkage gear shaft drives the worm to rotate through the meshing transmission of the gear sleeve, and cooperates with the transmission system composed of the synchronous wheel and the synchronous belt. The worm wheel drives the nozzle to rotate synchronously under the drive of the worm, so that the air outlet gradually faces the open side of the slag box; In addition, the No. 1 follower gear rotates with the worm, driving the No. 2 follower gear meshing with it to rotate, causing the gear piece to gradually approach the No. 3 follower gear; S4: When the bogie rotates to 100 degrees, the dry slag in the slag box is basically dumped into the material trough, and the gear plate and the No. 3 follower gear just form a meshing connection; S5: As the bogie continues to rotate, the gear plate drives the No. 3 follower gear to rotate, causing the baffle to flip upward from the nozzle's air outlet side until the bogie rotates to 120 degrees. The nozzle's air outlet is fully exposed and faces the open side of the slag box. At this time, the torque sensor detects that the torque value of the torsion spring reaches F1 and sends a signal to the motor control unit, entering the reciprocating cycle mode. S6: In the reciprocating cycle mode, the bogie rotates from 120 degrees to 150 degrees. At this time, the torque sensor detects that the torque value of the torsion spring reaches F2 and sends a signal to the motor control unit. The bogie then rotates from 150 degrees to 120 degrees, and repeats the cycle N times (F1 is the critical torque value for complete dumping of the dry slag in the slag box, for example, F1=50 N·m, and F2 is the final torque value for completing the purge of the residual dry slag in the slag box, for example, F2=80 N·m). The cycle is counted by a counter. During this process, the gas in the air cavity continuously flows out of the nozzle, and under the action of the rotation of the worm gear, the direction of the nozzle is continuously adjusted to purge the residual dry slag in the slag box, causing the residual dry slag to fall into the material trough. During this process, the gear plate maintains meshing connection with the No. 3 follower gear, driving the baffle to flip back and forth between the top of the nozzle and the other side of the nozzle outlet. S7: When the bogie rotates back and forth between 120 degrees and 150 degrees for a preset number of times N, a signal is sent to the motor control unit (a counter is used to set a preset value and an initial value to trigger the count), ending the reciprocating cycle mode. The bogie rotates from 150 degrees to 0 degrees along the D1 direction. When the bogie returns to 100 degrees, the gear plate is disconnected from the No. 3 follower gear. Under the action of the return spring, the baffle automatically flips to the initial position and rests on the support arm. S8: Wait for the belt conveyor to run for 30 minutes. When the coking coal begins to be transported to the bottom of the chute, start the electric discharge valve, open the discharge end of the material trough, and the dry slag falls into the screw conveyor. The screw conveyor then transports the dry slag to the chute at a preset rate and slides into the belt conveyor to mix with the coking coal.

[0016] Beneficial effects of the present invention: 1. The detachable slag box design is combined with forklift transfer and flip unloading to simplify the transportation process, reduce equipment maintenance requirements, and effectively reduce transportation and cleaning costs; 2. Through the coordinated control of the electric turning mechanism and the intelligent sensing unit, the slag box can be accurately turned over and the dry slag can be automatically unloaded, which reduces manual intervention, significantly improves unloading efficiency, and reduces labor intensity; 3. The screw conveyor accurately controls the mixing ratio of dry slag and coking coal, and forms a compensation mechanism combined with the adjustment of the screw conveyor's conveying efficiency to improve the uniformity and strength of the pellets, meeting the product quality requirements in high-demand scenarios; 4. The air-blowing cleaning inside the slag box is achieved through the power output of the slag box flipping, which does not require additional cleaning equipment and control systems, reducing costs; 5. Through the power conversion of the synchronous components, the nozzle can adjust the airflow direction while delivering the airflow, forming a multi-directional blowing and cleaning effect in the slag box; 6. By setting up baffles and intermittent follow-up components, the airflow from the nozzle is prevented from disturbing the dry slag during the unloading stage, thus preventing dust from spreading; 7. The baffle can prevent the dry slag from splashing out of the batching trough when unloading the dry slag. It can also shield the protective nozzle to prevent the dry slag from flying into the air outlet of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the coal blending device with turnover type unloading of the present invention; Figure 2 Shown is a schematic diagram of the front structure of the coal blending device with turnover type unloading of the present invention; Figure 3 Shown is a schematic diagram of the side structure of the coal blending device with turnover type unloading of the present invention; Figure 4Shown is a schematic diagram of the first structure of the electric turning unloading device of the coal blending device with turning unloading of the present invention; Figure 5 Shown is a schematic diagram of the second structure of the electric turning unloading device of the coal blending device with turning unloading of the present invention; Figure 6 The coal blending device with overturning unloading of the present invention is shown Figure 2 A in the middle is an enlarged schematic diagram of the structure; Figure 7 Shown is a schematic diagram of the drive assembly and bogie structure of the coal blending device with overturnable unloading according to the present invention; Figure 8 Shown is a schematic diagram of the transmission assembly and gas transmission assembly of the coal blending device with turnover type unloading according to the present invention; Figure 9 The coal blending device with overturning unloading of the present invention is shown Figure 3 The enlarged structural diagram at B in the middle; Figure 10 Shown is a schematic diagram of the synchronous component structure of the coal blending device with overturning unloading of the present invention; Figure 11 Shown is a schematic diagram of the structure of the baffle, continuous follower assembly and intermittent follower assembly of the coal blending device with overturning unloading of the present invention; Figure 12 The coal blending device with overturning unloading of the present invention is shown Figure 2 Enlarged structural diagram at point C in the middle.

[0018] Explanation of reference numerals: 1. belt conveyor; 2. pelletizing machine; 3. chute; 4. tar dry residue adding device; 501. material trough; 502. electric discharge valve; 6. turning mechanism; 601. stand; 602. bogie; 603. nozzle; 604. baffle; 6001. motor; 6002. driving gear shaft; 6003. driven gear shaft; 6101. hydraulic press; 6102. locking frame; 6201. transmission gear; 6202. gear sleeve; 6203 , screw; 6301, air cavity; 6302, plunger; 6303, air pipe; 6401, linkage gear shaft; 6402, synchronous wheel; 6403, synchronous belt; 6404, tensioning pulley; 6405, worm; 6406, worm wheel; 6501, follower gear No. 1; 6502, follower gear No. 2; 6503, gear plate; 6504, follower gear No. 3; 6505, support rod; 7, slag box; 8, induction unit; 9, return spring; 10, support arm. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] See also Figure 1 - Figure 12 The present invention provides an embodiment: a coal blending device with a turnover type unloading, comprising a belt conveyor 1, a chute 3 installed above the belt conveyor 1, a tar dry slag adding device 4 installed on the chute 3, and an electric turnover unloading device installed on the tar dry slag adding device 4. The electric turnover unloading device comprises a dosing trough installed on the tar dry slag adding device 4 and a turnover mechanism 6 installed on the dosing trough. The turnover mechanism 6 is used to flip a slag box 7 (a detachable container for loading dry slag, with an open side on the top for unloading. It serves as a collection container for dry slag at the end of an existing tar dry slag separation system. After collecting the dry slag, it is transported to a coal blending workshop by a forklift). When the slag box 7 is flipped to a preset angle, the dry slag is unloaded from the slag box 7 and passes through the dosing trough, the tar dry slag adding device 4 and the chute 3 in sequence until it falls into the belt conveyor 1; the turnover mechanism 6 comprises a stand 601 installed on the dosing trough, an movable A bogie 602 is movably connected to the platform 601, a driving assembly installed on the platform 601, and a locking assembly installed on the bogie 602. The input end of the bogie 602 is connected to the output end of the driving assembly. The bogie 602 is provided with a bayonet adapted to the slag box 7 (the U-shaped structure on the bogie 602 is adapted to the cross-sectional size of the slag box 7). The locking assembly is used to fix the slag box 7 on the bogie 602, and the driving assembly is used to drive the bogie 602 to rotate; the turning mechanism 6 also includes a transmission assembly, a gas delivery assembly and a nozzle 603 installed on the platform 601. The input end of the transmission assembly is connected to the output end of the drive assembly, the input end of the gas delivery assembly is connected to the output end of the transmission assembly, and the gas delivery assembly is communicated with the nozzle 603. When the bogie 602 rotates, the driving assembly controls the flow of gas between the gas delivery assembly and the nozzle 603 through the transmission assembly. The tar dry slag adding device 4 includes a screw conveyor installed on the chute 3, and the feeding trough includes a material trough 501 installed on the outer shell of the screw conveyor and an electric unloading valve 502 installed on the discharge end of the material trough 501. The electric unloading valve 502 is used to open or close the discharge end of the material trough 501. When the belt conveyor 1 is started for 30 minutes (when the belt conveyor 1 runs for about 30 minutes, coking coal begins to appear under the chute 3. At this time, the electric unloading valve 502 and the screw conveyor are started, and the dry slag is just matched with the coking coal), the electric unloading valve 502 opens the discharge end, and the screw conveyor is used to transport the dry slag into the chute 3 at a preset rate, and then introduce it into the belt conveyor 1 from the chute. The pelletizer 2 is installed at the tail end of the belt conveyor 1. The belt conveyor 1 transports the matched dry slag and coking coal to the pelletizer 2, and the pelletizer 2 makes the dry slag and coking coal into tar coal blocks.

[0021] See also Figure 1 - Figure 7 and Figure 9In this embodiment, the driving assembly includes a motor 6001 mounted on a platform 601, a driving gear shaft 6002 mounted on the output end of the motor 6001, and a driven gear shaft 6003 movably connected to the platform 601. The bogie 602 is provided with a gear ring that meshes with the driving gear shaft 6002 and the driven gear shaft 6003. The driving gear shaft 6002 is used to transmit the power of the motor 6001 to the bogie 602, and the bogie 602 is used to transmit the power to the driven gear shaft 6003. The locking assembly includes a hydraulic press 610 mounted on the bogie 602. 1 and a locking frame 6102 installed on the output end of the hydraulic press 6101. The hydraulic press 6101 is used to drive the locking frame 6102 toward or away from the slag box 7. When the locking frame 6102 approaches until it contacts the open side of the slag box 7, the slag box 7 is locked in the bayonet of the bogie 602 (the motor 6001 engages with the ring gear on the bogie 602 through the active gear shaft 6002 to transmit power to the bogie 602; the bogie 602 engages with the passive gear shaft 6003 through the ring gear to transmit the remaining power to the passive gear shaft 6003, thus realizing bidirectional power output).

[0022] See also Figure 1 - Figure 6 and Figure 8 - Figure 10 In this embodiment, the transmission assembly includes a transmission gear 6201 and a gear sleeve 6202 movably connected to the platform 601, and a screw 6203 threadedly connected to the gear sleeve 6202. The input end of the air transmission assembly is fixedly connected to the screw 6203, the transmission gear 6201 is engaged with the passive gear shaft 6003, and the gear sleeve 6202 is engaged with the transmission gear 6201. When the bogie 602 rotates, the screw 6203 is driven to move in a preset direction through the sequential engagement transmission of the passive gear shaft 6003, the transmission gear 6201 and the gear sleeve 6202. The gas delivery assembly includes an air cavity 6301 mounted on a stand 601, a plunger 6302 movably connected in the air cavity 6301, and a gas delivery pipe 6303 having one end connected to the air cavity 6301. The plunger 6302 is fixedly connected to a lead screw 6203, and the other end of the gas delivery pipe 6303 is connected to a nozzle 603. The lead screw 6203 is used to drive the plunger 6302 to move in the air cavity 6301. When the plunger 6302 moves in the air cavity 6301, the gas flows between the air cavity 6301 and the nozzle 603.

[0023] See also Figure 1 - Figure 12In this embodiment, a synchronization component is installed on the electric turnover unloading device, the input end of the synchronization component is connected to the output end of the transmission component, and the output end of the synchronization component is fixedly connected to the nozzle 603. The synchronization component is installed with a sensing unit 8. When the bogie 602 rotates, the sensing unit 8 is used to send a signal to the control unit of the drive component, and the drive component drives the nozzle 603 to rotate through the transmission component and the synchronization component; when the bogie 602 rotates to 120 degrees, the sensing unit 8 detects a signal value of F1, and when the bogie 602 rotates to 150 degrees, the sensing unit 8 detects a signal value of F2; when the drive component drives the bogie 602 to rotate back and forth between 120 degrees and 150 degrees, the gas outlet of the nozzle 603 rotates to the open side of the slag box 7, and the gas flows from the nozzle 603 to the slag box 7; the control unit of the drive component counts the number of reciprocating rotations of the bogie 602 through a counter. When the number of rotations reaches N, the drive component drives the bogie 602 to rotate back to 0 degrees; a continuous tracking device is installed on the material feeding trough. The intermittent follower assembly is provided with a baffle 604 on the output end of the intermittent follower assembly, the input end of the continuous follower assembly is connected to the output end of the synchronization assembly, and the intermittent follower assembly is provided with a reset unit; when the bogie 602 rotates between 0 degrees and 100 degrees, the output end of the continuous follower assembly is disconnected from the input end of the intermittent follower assembly; when the bogie 602 rotates between 100 degrees and 150 degrees, the output end of the continuous follower assembly is connected to the input end of the intermittent follower assembly, The driving assembly drives the baffle 604 to flip through the transmission assembly, the synchronization assembly, the continuous follow-up assembly and the intermittent follow-up assembly; when the bogie 602 rotates from 0 degrees to 100 degrees, the baffle 604 is stationary and is located on the air outlet side of the nozzle 603; when the bogie 602 rotates from 100 degrees to 120 degrees, the baffle 604 flips to above the air outlet of the nozzle 603; when the bogie 602 rotates from 120 degrees to 150 degrees, the baffle 604 flips to the other side of the air outlet of the nozzle 603.

[0024] See also Figure 1 - Figure 6 、 Figure 10 and Figure 12In this embodiment, the synchronization component includes a linkage gear shaft 6401 movably connected to the platform 601, a synchronization wheel 6402 installed on the linkage gear shaft 6401, another synchronization wheel 6402 movably connected to the feeding trough, a synchronization belt 6403 transmission-connected to the two synchronization wheels 6402, a tensioning wheel 6404 movably connected to the feeding trough (the tensioning wheel 6404 is used to adjust the transmission tension to prevent slipping), a worm 6405 and a worm wheel 6406, the linkage gear shaft 6401 is meshed with the gear sleeve 6202, the worm 6405 is fixedly connected to one of the synchronization wheels 6402, the worm 6405 is helically meshed with the worm wheel 6406, the nozzle 603 is fixedly mounted on the worm wheel 6406, the gear sleeve 6202 is used to drive the linkage gear shaft 6401 and the corresponding synchronization wheel 6402 to rotate, and drives the other synchronization wheel 6402 and the corresponding worm through the synchronization belt 6403. 6405 rotates, and the worm 6405 is used to drive the worm wheel 6406 and the corresponding nozzle 603 to rotate; the sensing unit 8 includes a torsion spring and a torque sensor installed on the linkage gear shaft 6401 (the torsion spring is fixedly connected between the linkage gear shaft 6401 and the platform 601. When the bogie 602 rotates, the torsion spring generates torque; the torque sensor detects the torque value of the torsion spring in real time and transmits the signal to the control unit of the drive component to trigger the threshold judgment of the rotation angle of the bogie 602). The torque sensor is used to detect the torque value of the torsion spring. When the bogie 602 rotates to 120 degrees, the torque sensor detects that the torque value of the torsion spring is F1. When the bogie 602 rotates to 150 degrees, the torque sensor detects that the torque value of the torsion spring is F2 [In actual application, if the torque sensor is detected to be abnormal (such as F1 / F2 exceeds the threshold range), an emergency stop signal is triggered, the motor 6001 stops and the slag box 7 is locked].

[0025] See also Figure 1 - Figure 5 and Figure 10 - Figure 12In this embodiment, the continuous follower assembly includes a No. 1 follower gear 6501 and a No. 2 follower gear 6502 movably connected to the feeding trough, and a gear piece 6503 fixedly connected to the No. 2 follower gear 6502. The No. 1 follower gear 6501 is fixedly connected to the worm 6405. The No. 1 follower gear 6501 is meshed with the No. 2 follower gear 6502. When the worm 6405 rotates, the No. 1 follower gear 6501 drives the No. 2 follower gear 6502 to rotate; the intermittent follower assembly includes a No. 3 follower gear 6504 movably connected to the feeding trough and a support rod 6505 fixedly connected to the No. 3 follower gear 6504. The support rod 6505 is fixedly connected to the baffle 604. When the steering When the bogie 602 rotates between 0 degrees and 100 degrees, the No. 3 follower gear 6504 is disconnected from the gear plate 6503; when the bogie 602 rotates between 100 degrees and 150 degrees, the No. 3 follower gear 6504 is meshed and connected with the gear plate 6503, and the gear plate 6503 drives the baffle 604 to flip through the No. 3 follower gear 6504 and the support rod 6505 (the gear plate 6503 is actually a toothless gear, and its teeth are distributed within a specific angle range. In this solution, this specific angle range corresponds to the rotation angle of the No. 2 follower gear 6502 when the bogie 602 rotates between 100 degrees and 150 degrees. There are no teeth at other angles, that is, the angle range that is never meshed with the No. 3 follower gear 6504). A return spring 9 is installed on the No. 3 follower gear 6504, and a support arm 10 is installed on the ingredient trough (a rigid bracket installed on the ingredient trough, used to limit the initial position of the baffle 604, and a flexible gasket can also be installed on its surface to prevent the baffle 604 from colliding when it is flipped and reset). When the bogie 602 rotates between 0 degrees and 100 degrees, the return spring 9 flips the baffle 604 to the side of the air outlet of the nozzle 603 through its own elastic force until the baffle 604 contacts the support arm 10.When the rotation angle of the bogie 602 is between 0 degrees and 100 degrees, the baffle 604 rests against the support arm 10 under the action of the return spring 9 and is in a stationary state, blocking the air outlet of the nozzle 603. On the one hand, it prevents the air flow ejected from the nozzle 603 from disturbing the dry slag being poured and causing the dry slag to splash. On the other hand, the baffle 604 can protect the nozzle 603 to prevent the dry slag from impacting the nozzle 603 and causing the air outlet to be blocked. When the rotation angle of the bogie 602 is between 100 degrees and 120 degrees, the gear piece 6503 is engaged with the third follower gear 6504, and the baffle 604 flips between the air outlet side of the nozzle 603 and the top of the nozzle 603. When it reaches 120 degrees, the baffle 604 no longer blocks the nozzle 603. The air outlet of the nozzle 603 is blocked, and the air flow out of the nozzle 603 enters the slag box 7; when the rotation angle of the bogie 602 is between 120 degrees and 150 degrees, the baffle 604 flips between the top of the nozzle 603 and the other side of the air outlet of the nozzle 603, without affecting the discharge of the air flow from the nozzle 603 (simply put, the toothless area of ​​the tooth plate 6503 corresponds to the first 100 degrees of rotation of the bogie 602. At this stage, the tooth plate 6503 and the No. 3 follower gear 6504 are not in contact, and the baffle 604 is stationary. The toothed area of ​​the tooth plate 6503 corresponds to 100 degrees to 150 degrees of rotation of the bogie 602. At this stage, the tooth plate 6503 and the No. 3 follower gear 6504 are engaged, and the baffle 604 follows).

[0026] See also Figure 1 - Figure 12 In this embodiment, the present invention provides a coal blending method with a turnover type unloading, which uses a coal blending device with a turnover type unloading as described above, and includes the following steps: S1: The forklift transports the slag box 7 filled with dry slag to the coal blending workshop, and then forks the slag box 7 into the bayonet of the bogie 602. The staff stands in the safety zone of the workshop to operate the control system. [In actual application, the coal blending device control system proposed by the present invention is set in the safety zone of the coal blending workshop. An infrared recognition system is added to the control system, and it is deeply integrated with the logic control system to achieve safe isolation and intelligent protection of the electric flip unloading device. Specifically, the control system deploys infrared counter-radiation sensors at the boundary of the safety zone to detect in real time whether the operator is within the safety range; at the same time, the PLC controller, as the core logic unit, receives sensor signals and interacts with the operation terminal: when the personnel is in the safety zone, the PLC allows the operation instruction to trigger the equipment to run; once the personnel leaves the safety zone, the infrared sensor immediately sends an interrupt signal to the PLC, triggering the emergency stop relay to cut off the power supply of the device, and activating the sound and light alarm device (which can be a flashing red warning light + buzzer alarm), and at the same time locks the operation terminal to prevent unauthorized operation. To further enhance reliability, the system employs a dual-signal verification mechanism, whereby an infrared counter-radiation sensor and a thermal imager (to assist in identifying human heat signatures) work together to reduce the risk of false alarms. Furthermore, a physically isolated operating panel ensures that operations can only be performed within a safe zone, further eliminating dangerous operations. This design utilizes pulse modulation signal anti-interference technology, fault self-checking logic (regularly checking sensor status), and a remote monitoring expansion interface to achieve multiple redundant protections, ensuring both personnel safety and meeting the requirements of industrial automation for efficient operation and functional safety. The coal blending device is started. [The user enters the target (reciprocating cycle mode) reciprocating number N (e.g., N=5) through the HMI and stores it in the PLC's data register. At program startup, the N value entered by the HMI is read and assigned to the PV (preset value) of the CTUD counter.] S2: Start the hydraulic press 6101 and control the locking frame 6102 to approach the slag box 7 until the open side of the slag box 7 is pressed tightly, so that the slag box 7 is locked in the bayonet; S3: The staff then starts the motor 6001, and controls the bogie 602 and the locked slag box 7 to rotate in the direction D2 through the meshing transmission effect of the active gear shaft 6002 and the ring gear on the bogie 602. During the rotation, the bogie 602 is meshed with the passive gear shaft 6003 through the ring gear, driving the passive gear shaft 6003 to rotate. The passive gear shaft 6003, the transmission gear 6201, and the gear sleeve 6202 mesh in sequence, driving the lead screw 6203 to move. The lead screw 6203 in turn drives the plunger 6302 to move in the air cavity 6301, so that gas flows between the air cavity 6301 and the nozzle 603 through the gas pipe 6303; At the same time, the linkage gear shaft 6401, through the meshing transmission of the gear sleeve 6202, cooperates with the transmission system composed of the synchronous wheel 6402 and the synchronous belt 6403 to drive the worm 6405 to rotate together. Driven by the worm 6405, the worm wheel 6406 drives the nozzle 603 to rotate synchronously, so that the air outlet gradually faces the open side of the slag box 7. In addition, the first follower gear 6501 rotates along with the worm 6405, driving the second follower gear 6502 meshing with it to rotate, causing the gear plate 6503 to gradually approach the third follower gear 6504; S4: When the bogie 602 rotates to 100 degrees, the dry slag in the slag box 7 is basically poured into the material trough 501, and the gear piece 6503 and the third follower gear 6504 are just in meshing connection; S5: As the bogie 602 continues to rotate, the gear plate 6503 drives the third follower gear 6504 to rotate, causing the baffle 604 to flip upward from the air outlet side of the nozzle 603. When the bogie 602 rotates to 120 degrees, the air outlet of the nozzle 603 is completely exposed and faces the open side of the slag box 7. At this time, the torque sensor detects that the torque value of the torsion spring reaches F1 and sends a signal to the control unit of the motor 6001, entering the reciprocating cycle mode. S6: The bogie 602 rotates from 120 degrees to 150 degrees in the reciprocating cycle mode. At this time, the torque sensor detects that the torque value of the torsion spring reaches F2, and sends a signal to the control unit of the motor 6001. The bogie 602 rotates from 150 degrees to 120 degrees again, and reciprocates N times (F1 is the critical torque value for complete dumping of the dry slag in the slag box 7, for example, F1=50N·m, and F2 is the terminal torque value for completing the blowing of the residual dry slag in the slag box 7, for example, F2=80N·m), and counts through the counter [In actual application, the counter can adopt a CTUD bidirectional counter, which is triggered by the forward flip completion signal (CU) and the reverse flip completion signal (CD), and the forward flip completion signal input by the user through the HMI is used to trigger the count]. The number of repetitions N, for example, N=5, when the bogie 602 rotates from 120° to 150° (the torque sensor detects F2=80N·m), the CU input is triggered and the counter is incremented by 1. When the bogie 602 rotates back from 150° to 120° (the torque sensor detects F1=50N·m), the CD input is triggered and the counter is decremented by 1. Each complete reciprocating motion (120°→150°→120°) corresponds to the counter being incremented by 1 (CU trigger) and decremented by 1 (CD trigger). However, logical judgment is required to ensure that the count is incremented only when the forward reversal is completed, and the reverse reversal is not counted. When the current value (CV) of the counter reaches the preset value (PV=N), the reset action is triggered to clear the counter and return to the initial state. If the counter value is abnormal (e.g., CV>N), an alarm is triggered and the system enters manual mode. During this process, the gas in the air cavity 6301 continuously flows out of the nozzle 603, and under the rotation of the worm gear 6406, the direction of the nozzle 603 is continuously adjusted to purge the dry slag remaining in the slag box 7, causing the remaining dry slag to fall into the material trough 501. During this process, the gear 6503 maintains a meshing connection with the No. 3 follower gear 6504, driving the baffle 604 to flip back and forth between above the nozzle 603 and the other side of the nozzle 603 outlet. S7: When the bogie 602 rotates back and forth between 120 degrees and 150 degrees for a preset number of times N, a signal is sent to the control unit of the motor 6001 (using a counter, set to a preset value and an initial value, to trigger counting), ending the reciprocating cycle mode. The bogie 602 rotates from 150 degrees to 0 degrees along the D1 direction. When the bogie 602 returns to 100 degrees, the gear 6503 is disconnected from the third follower gear 6504. Under the action of the return spring 9, the baffle 604 automatically flips to the initial position and abuts against the support arm 10. S8: Wait for the belt conveyor 1 to run for 30 minutes. When the coking coal begins to be transported to the bottom of the chute 3, start the electric discharge valve 502, open the discharge end of the material trough 501, and the dry slag falls into the screw conveyor. The screw conveyor then transports the dry slag to the chute 3 at a preset rate and slides into the belt conveyor 1 to mix with the coking coal.

Claims

1. A coal blending device with a turnover type unloading, characterized in that: The invention comprises a belt conveyor (1), a chute (3) installed above the belt conveyor (1), a tar dry residue adding device (4) installed on the chute (3), and an electric turning unloading device installed on the tar dry residue adding device (4). The electric turning unloading device comprises a batching trough installed on the tar dry residue adding device (4) and a turning mechanism (6) installed on the batching trough. The turning mechanism (6) is used to turn over a slag box (7). When the slag box (7) turns over to a preset angle, the dry residue is unloaded from the slag box (7) and passes through the batching trough, the tar dry residue adding device (4) and the chute (3) in sequence until it falls into the belt conveyor (1). The turning mechanism (6) comprises a platform (601) mounted on the batching trough, a bogie (602) movably connected to the platform (601), a driving assembly mounted on the platform (601), and a locking assembly mounted on the bogie (602); an input end of the bogie (602) is connected to an output end of the driving assembly; a bayonet adapted to the slag box (7) is provided on the bogie (602); the locking assembly is used to fix the slag box (7) on the bogie (602); and the driving assembly is used to drive the bogie (602) to rotate; The turning mechanism (6) further comprises a transmission assembly, a gas delivery assembly and a nozzle (603) mounted on the platform (601), wherein the input end of the transmission assembly is connected to the output end of the driving assembly, the input end of the gas delivery assembly is connected to the output end of the transmission assembly, and the gas delivery assembly is in communication with the nozzle (603). When the bogie (602) rotates, the driving assembly controls the flow of gas between the gas delivery assembly and the nozzle (603) through the transmission assembly.

2. The coal blending device with turnover type unloading according to claim 1, characterized in that: The tar dry residue adding device (4) includes a screw conveyor installed on the chute (3), the material feeding trough includes a material trough (501) installed on the outer shell of the screw conveyor and an electric discharge valve (502) installed on the discharge end of the material trough (501), the electric discharge valve (502) is used to open or close the discharge end of the material trough (501), when the belt conveyor (1) is started for 30 minutes, the electric discharge valve (502) opens the discharge end, and the screw conveyor is used to transport the dry residue into the chute (3) at a preset rate.

3. The coal blending device with turnover type unloading according to claim 2, characterized in that: The driving assembly comprises a motor (6001) mounted on a platform (601), a driving gear shaft (6002) mounted on an output end of the motor (6001), and a passive gear shaft (6003) movably connected to the platform (601); a gear ring meshing with the driving gear shaft (6002) and the passive gear shaft (6003) is provided on the bogie (602); the driving gear shaft (6002) is used to transmit power from the motor (6001) to the bogie (602); and the bogie (602) is used to transmit power to the passive gear shaft (6003); The locking assembly comprises a hydraulic press (6101) mounted on the bogie (602) and a locking frame (6102) mounted on the output end of the hydraulic press (6101). The hydraulic press (6101) is used to drive the locking frame (6102) to move closer to or farther from the slag box (7). When the locking frame (6102) approaches until it contacts the open side of the slag box (7), the slag box (7) is locked in the bayonet of the bogie (602).

4. The coal blending device with turnover type unloading according to claim 3, characterized in that: The transmission assembly comprises a transmission gear (6201) and a gear sleeve (6202) movably connected to the platform (601), and a lead screw (6203) threadedly connected to the gear sleeve (6202); the input end of the gas transmission assembly is fixedly connected to the lead screw (6203); the transmission gear (6201) is meshed with the passive gear shaft (6003); and the gear sleeve (6202) is meshed with the transmission gear (6201); when the bogie (602) rotates, the lead screw (6203) is driven to move in a preset direction through the sequential meshing transmission of the passive gear shaft (6003), the transmission gear (6201), and the gear sleeve (6202).

5. The coal blending device with turnover type unloading according to claim 4, characterized in that: The gas delivery assembly comprises an air cavity (6301) mounted on a stand (601), a plunger (6302) movably connected in the air cavity (6301), and an air delivery pipe (6303) having one end connected to the air cavity (6301). The plunger (6302) is fixedly connected to a lead screw (6203), and the other end of the air delivery pipe (6303) is connected to a nozzle (603). The lead screw (6203) is used to drive the plunger (6302) to move in the air cavity (6301). When the plunger (6302) moves in the air cavity (6301), gas flows between the air cavity (6301) and the nozzle (603).

6. The coal blending device with turnover type unloading according to claim 5, characterized in that: A synchronization component is installed on the electric turnover unloading device, the input end of the synchronization component is connected to the output end of the transmission component, the output end of the synchronization component is fixedly connected to the nozzle (603), and a sensing unit (8) is installed on the synchronization component. When the bogie (602) rotates, the sensing unit (8) is used to send a signal to the control unit of the drive component, and the drive component drives the nozzle (603) to rotate through the transmission component and the synchronization component. When the bogie (602) rotates to 120 degrees, the sensing unit (8) detects a signal value of F1, and when the bogie (602) rotates to 150 degrees, the sensing unit (8) detects a signal value of F2; When the driving assembly drives the bogie (602) to rotate back and forth between 120 and 150 degrees, the gas outlet of the nozzle (603) rotates to the open side of the slag box (7), and gas flows from the nozzle (603) to the slag box (7); the control unit of the driving assembly counts the number of reciprocating rotations of the bogie (602) through a counter, and when the number of rotations reaches N, the driving assembly drives the bogie (602) to rotate back to 0 degrees; The batching trough is equipped with a continuous follower assembly and an intermittent follower assembly, the output end of the intermittent follower assembly is equipped with a baffle (604), the input end of the continuous follower assembly is connected to the output end of the synchronization assembly, and the intermittent follower assembly is equipped with a reset unit; When the bogie (602) rotates between 0 degrees and 100 degrees, the output end of the continuous follower component is disconnected from the input end of the intermittent follower component; when the bogie (602) rotates between 100 degrees and 150 degrees, the output end of the continuous follower component is connected to the input end of the intermittent follower component, and the driving component drives the baffle (604) to flip through the transmission component, the synchronization component, the continuous follower component and the intermittent follower component; When the bogie (602) rotates from 0 degrees to 100 degrees, the baffle (604) is stationary and located on one side of the air outlet of the nozzle (603); when the bogie (602) rotates from 100 degrees to 120 degrees, the baffle (604) flips over to above the air outlet of the nozzle (603); and when the bogie (602) rotates from 120 degrees to 150 degrees, the baffle (604) flips over to the other side of the air outlet of the nozzle (603).

7. The coal blending device with turnover type unloading according to claim 6, characterized in that: The synchronization assembly includes a linkage gear shaft (6401) movably connected to the stand (601), a synchronization wheel (6402) mounted on the linkage gear shaft (6401), another synchronization wheel (6402) movably connected to the batching trough, a synchronization belt (6403) transmission-connected to the two synchronization wheels (6402), a tensioning wheel (6404) movably connected to the batching trough, a worm (6405) and a worm wheel (6406), the linkage gear shaft (6401) is meshed with the gear sleeve (6202), and the worm (6405) is fixed. Connected to one of the synchronous wheels (6402), the worm (6405) is spirally meshed with the worm wheel (6406), and the nozzle (603) is fixedly mounted on the worm wheel (6406). The gear sleeve (6202) is used to drive the linkage gear shaft (6401) and the corresponding synchronous wheel (6402) to rotate, and drives the other synchronous wheel (6402) and the corresponding worm (6405) to rotate through the synchronous belt (6403). The worm (6405) is used to drive the worm wheel (6406) and the corresponding nozzle (603) to rotate. The sensing unit (8) includes a torsion spring and a torque sensor mounted on the linkage gear shaft (6401). The torque sensor is used to detect the torque value of the torsion spring. When the bogie (602) rotates to 120 degrees, the torque sensor detects that the torque value of the torsion spring is F1. When the bogie (602) rotates to 150 degrees, the torque sensor detects that the torque value of the torsion spring is F2.

8. The coal blending device with turnover type unloading according to claim 7, characterized in that: The continuous follower assembly includes a No. 1 follower gear (6501) and a No. 2 follower gear (6502) movably connected to the batching trough, and a gear piece (6503) fixedly connected to the No. 2 follower gear (6502). The No. 1 follower gear (6501) is fixedly connected to the worm (6405). The No. 1 follower gear (6501) and the No. 2 follower gear (6502) are meshed and connected. When the worm (6405) rotates, the No. 1 follower gear (6501) drives the No. 2 follower gear (6502) to rotate. The intermittent follower assembly comprises a No. 3 follower gear (6504) movably connected to the batching trough and a support rod (6505) fixedly connected to the No. 3 follower gear (6504), wherein the support rod (6505) is fixedly connected to the baffle (604); When the bogie (602) rotates between 0 degrees and 100 degrees, the third follower gear (6504) is disconnected from the tooth plate (6503); when the bogie (602) rotates between 100 degrees and 150 degrees, the third follower gear (6504) is meshed and connected with the tooth plate (6503), and the tooth plate (6503) drives the baffle (604) to flip through the third follower gear (6504) and the support rod (6505).

9. The coal blending device with turnover type unloading according to claim 8, characterized in that: A return spring (9) is installed on the third follower gear (6504), and a support arm (10) is installed on the feeding trough. When the bogie (602) rotates between 0 degrees and 100 degrees, the return spring (9) flips the baffle (604) to the side of the air outlet of the nozzle (603) through its own elastic force until the baffle (604) contacts the support arm (10).

10. A coal blending method with turnover unloading, characterized by: The coal blending device with a turnover type unloading as claimed in claim 9 comprises the following steps: S1: A forklift transports the slag box (7) containing dry slag to the coal blending workshop, and then forks the slag box (7) into the bayonet of the bogie (602). A worker stands in a safe area of ​​the workshop to operate the control system and start the coal blending device; S2: Start the hydraulic press (6101) and control the locking frame (6102) to approach the slag box (7) until the open side of the slag box (7) is pressed tightly, so that the slag box (7) is locked in the bayonet; S3: Then the staff starts the motor (6001), and controls the bogie (602) and the locked slag box (7) to rotate in the direction D2 through the meshing transmission effect of the active gear shaft (6002) and the gear ring on the bogie (602). While rotating, the bogie (602) is meshed with the passive gear shaft (6003) through the gear ring, driving the passive gear shaft (6003) to rotate, and then through the meshing effect of the passive gear shaft (6003), the transmission gear (6201) and the gear sleeve (6202) in sequence, driving the lead screw (6203) to move, and the lead screw (6203) in turn drives the plunger (6302) to move in the air cavity (6301), so that the gas flows between the air cavity (6301) and the nozzle (603) through the gas pipe (6303); At the same time, the linkage gear shaft (6401) drives the worm (6405) to rotate together with the transmission system composed of the synchronous wheel (6402) and the synchronous belt (6403) through the meshing transmission effect of the gear sleeve (6202). The worm wheel (6406) drives the nozzle (603) to rotate synchronously under the drive of the worm (6405), so that the air outlet gradually faces the open side of the slag box (7); In addition, the No. 1 follower gear (6501) rotates along with the worm (6405), driving the No. 2 follower gear (6502) meshing with it to rotate, causing the gear plate (6503) to gradually approach the No. 3 follower gear (6504); S4: When the bogie (602) rotates to 100 degrees, the dry slag in the slag box (7) is basically poured into the material trough (501), and at this time, the gear (6503) and the third follower gear (6504) just form a meshing connection; S5: When the bogie (602) continues to rotate, the gear (6503) drives the third follower gear (6504) to rotate, causing the baffle (604) to flip upward from the air outlet side of the nozzle (603), until the bogie (602) rotates to 120 degrees, the air outlet of the nozzle (603) is completely exposed and faces the open side of the slag box (7). At this time, the torque sensor detects that the torque value of the torsion spring reaches F1 and sends a signal to the control unit of the motor (6001), entering the reciprocating cycle mode; S6: The bogie (602) rotates from 120 degrees to 150 degrees in a reciprocating cycle mode. At this time, the torque sensor detects that the torque value of the torsion spring reaches F2 and sends a signal to the control unit of the motor (6001). The bogie (602) rotates from 150 degrees to 120 degrees again, and reciprocates N times, and is counted by the counter. During this process, the gas in the air cavity (6301) continuously flows out from the nozzle (603), and under the rotation of the worm gear (6406), the direction of the nozzle (603) is continuously adjusted to blow away the dry slag remaining in the slag box (7), so that the residual dry slag falls into the material trough (501). During this process, the gear (6503) and the third follower gear (6504) are kept in meshing connection, driving the baffle (604) to flip back and forth between the top of the nozzle (603) and the other side of the nozzle (603) outlet. S7: When the bogie (602) rotates back and forth between 120 degrees and 150 degrees for a preset number of times N, a signal is sent to the control unit of the motor (6001), ending the reciprocating cycle mode, and the bogie (602) rotates from 150 degrees to 0 degrees along the D1 direction. When the bogie (602) returns to 100 degrees, the gear (6503) is disconnected from the third follower gear (6504), and under the action of the return spring (9), the baffle (604) automatically flips to the initial position and rests on the support arm (10); S8: Wait for the belt conveyor (1) to run for 30 minutes. When the coking coal starts to be transported to the bottom of the chute (3), start the electric discharge valve (502) and open the discharge end of the material trough (501). The dry slag falls into the screw conveyor and is then transported to the chute (3) at a preset rate by the screw conveyor. The dry slag slides into the belt conveyor (1) and mixes with the coking coal.

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