Coal mining transportation method

Abstract

The invention discloses a coal mining transportation method, and relates to the field of coal mining. The method comprises the steps of 1, coal mine smashing, conveying mined coal mine to the position above a smashing box through a conveyor and then enabling the mined coal mine to fall into the smashing box, 2, feeding, enabling a transport vehicle to move to the position below the smashing box through wheels and a track, 3, coal mine transportation, enabling the wheels to roll along the track under the action of a driving source, and enabling the transport vehicle to move. At the moment, a sealing plate and a vertical plate are reset under the elasticity of an extension spring, a feeding opening is closed, a drawing box is fixed, and front air can rapidly enter the drawing box through a plurality of ventilation holes through movement of a transport vehicle; and heat is absorbed in the sublimation process, so that the reduced air cools the coal pile, and meanwhile, the cooling effect is improved in cooperation with a stirring rod.

Description

Technical Field

[0001] The invention mainly relates to the technical field of coal mining, and specifically to a coal mining and transportation method. Background Art

[0002] A coal mine is a reasonable space excavated by humans when digging geological strata rich in coal. It usually includes tunnels, shafts, and mining faces. During the coal mining process, transportation equipment is usually used to transport coal from underground mines to the ground for subsequent processing.

[0003] A transport device for coal mining described in the prior art includes a transport track for coal mining, a surface of which is provided with rollers, a first transport vehicle body is provided above the rollers, and a crushing box fixing bracket is provided on the surface of the first transport vehicle body. The device drives the first transport vehicle body to move by rotating the rollers, and the crushing box fixing bracket is used to fix and support the crushing fixed box, and the first motor drives the first gear and the second gear to rotate to drive the coal crushing knife, and the mined coal is crushed by the coal crushing knife.

[0004] Although the above technology can crush and transport large pieces of coal without taking up a lot of space in the box, effectively improving production and transportation efficiency, the coal crushed into particles will collide and rub against each other during transportation, causing part of the chemical energy to be converted into thermal energy, which may cause local heating and lead to an increase in temperature inside the coal pile. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a coal mining and transportation method to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A coal mining and transportation method, comprising the following steps; Step 1: Coal ore crushing: the mined coal ore is transported to the top of the crushing box by a conveyor, and then falls into the crushing box and is crushed by two staggered crushing knives; Step 2: Feeding. The transport vehicle moves to the bottom of the crushing box through wheels and tracks, and pushes the closing plate to move through the baffle, so that the feed port is exposed and located directly below the discharge pipe. The closing plate drives the sliding block to move out of the sliding groove through the connecting plate and the vertical plate, so that the fixing rod in the fixing assembly is disengaged from the fixing groove of the pull-out box and the fixation is cancelled. Then the pull-out box is pulled out to add dry ice. At this time, the solenoid valve is opened and the crushed coal enters the transport vehicle. Step 3, coal mine transportation, the wheels roll along the track under the action of the driving source, so that the transport vehicle moves. At this time, the closing plate and the vertical plate are reset under the elasticity of the tension spring, the feed port is closed and the pull-out box is fixed. The movement of the transport vehicle will cause the front air to quickly enter the pull-out box through several ventilation holes, so that the dry ice inside sublimates, resulting in a drop in air temperature, dehumidification and purification effects. The air with reduced temperature enters the storage cavity through the L-shaped air guide pipe, the guide pipe and multiple exhaust pipes, and cooperates with the rotating stirring rod to control the temperature of the coal mine; Step 4: Unloading. After the transport vehicle reaches the destination, the two electric telescopic cylinders work to move the push plate, which pushes the sealing door to separate from the transport vehicle through the stirring shaft. At the same time, the push plate pushes the coal in the storage chamber to complete the unloading.

[0007] The technical solution is specific, the crushing box is provided with two staggered crushing knives inside, support plates are fixed on both sides of the lower surface of the crushing box, a feeding pipe is provided at the center of the lower surface of the crushing box, the transport trolley is arranged below the crushing box, tracks are provided on both sides of the lower side of the transport trolley, wheels that roll with the tracks are installed at the corners of the lower surface of the transport trolley, a material storage cavity is provided inside the transport trolley, and a draw-out slot is provided inside the transport trolley in the material storage cavity, a draw-out box is slidably installed in the draw-out slot, a plurality of dry ices are placed in the draw-out box, and a panel is fixed at the end of the draw-out box passing through the draw-out slot, and a plurality of ventilation holes are provided on the panel; A feed port is provided at the center of the top of the transport vehicle, and a closing plate is provided on the feed port, a side plate is fixed to one end of the closing plate, a baffle is fixed to the lower surface of the crushing box on one side of the discharge pipe, and the side plate cooperates with the baffle, and fixed components are provided inside the two side walls of the transport vehicle, and the actuators of the two fixed components are plugged into the pull-out box, and the closing plate cooperates with the fixed components, an L-shaped air duct is provided on one side of the storage cavity and the pull-out slot, one end of the L-shaped air duct is inserted into the pull-out slot and passes through the pull-out box, the other end of the L-shaped air duct is connected to a guide pipe, and the lower surface of the guide pipe is connected to a plurality of exhaust pipes.

[0008] Specifically, a push plate is provided on the side of the transport vehicle away from the sealing door, a stirring shaft is rotatably installed between the push plate and the sealing door, a plurality of stirring rods are fixed to the outer wall of the stirring shaft, a driving motor is installed to the outer wall of the sealing door by bolts, the output end of the driving motor is fixedly connected to the stirring shaft, and electric telescopic cylinders are symmetrically fixed to the outer wall of the transport vehicle away from the sealing door, and the output ends of the two electric telescopic cylinders pass through the vehicle wall and are fixedly connected to the push plate.

[0009] Specifically, the technical solution of the present invention is that connecting plates are fixed on both sides of one end of the closing plate away from the side plate, vertical plates are fixed on the ends of the two connecting plates, the two vertical plates are in contact with the outer wall of the transport vehicle and are slidably connected, sliding grooves are opened at the bottom of the outer walls on both sides of the transport vehicle, the two fixed components are arranged in the groove ends of the sliding grooves, and sliding blocks are fixed on the two vertical plates close to the outer wall of the transport vehicle, and the two sliding blocks are located in the sliding grooves and matched with the fixed components.

[0010] The technical solution is specific, mounting plates are fixed to the outer walls of both sides of the transport vehicle, tension springs are symmetrically fixed to one side of the two mounting plates close to the vertical plates, a fixing plate is fixed to the end of each tension spring, each fixing plate is fixedly connected to the side wall of the vertical plate, and magnets and a plurality of air outlets are respectively provided on both sides of the feed port on the upper surface of the transport vehicle, and the magnets are magnetically adsorbed and connected to the lower surface of the side plate.

[0011] Specifically, the fixing component includes a through hole opened in the sliding groove, a square fixing rod is provided in the through hole, movable plates are welded on both sides of the fixing rod, and an inclined surface is provided at one end of the fixing rod located in the sliding groove, and the inclined surface matches the sliding block. The outer walls on both sides of the pull-out box are provided with fixing grooves, and the other end of the fixing rod is inserted into the fixing groove.

[0012] Specifically, the perforated hole wall is symmetrically provided with movable grooves, the two movable plates are slidably installed in the movable grooves, and reset springs are fixed between the two movable plates and the movable groove walls.

[0013] Specifically, the guide pipe is installed in the inner top wall of the transport vehicle, several exhaust pipes penetrate the vehicle wall and are located in the material storage cavity, and the L-shaped air guide pipe is movably connected to the portion in contact with the pull-out box.

[0014] Specifically, the outer wall of the crushing box is installed with a driving box, the driving source in the driving box is connected to the two crushing knives, and the two support plates and the lower surface of the track are fixedly connected to the ground.

[0015] Specifically, the discharge pipe is provided with an electromagnetic valve, and the inner bottom wall of the crushing box is provided with a guide slope around the discharge pipe.

[0016] In summary, the present invention mainly has the following beneficial effects: when the crushed coal is transported, the dry ice is transformed from solid to gaseous state, and absorbs heat during the sublimation process, so that the lowered air cools the coal pile, and the stirring rod is used to improve the cooling effect; First, the mined coal is transported to the top of the crushing box, and then falls into the crushing box, where it is crushed by two working crushing knives. At this time, the transport vehicle moves to the bottom of the crushing box through wheels and tracks, and the side plate contacts the baffle plate, which pushes the closing plate to move, so that the feed port is exposed. When the closing plate moves, it drives the sliding block to move along the sliding groove through the connecting plate and the vertical plate. The fixing rod is reset under the elasticity of the reset spring, and is separated from the fixing groove to cancel the fixation of the pull-out box. At this time, the solenoid valve opens, and the crushed coal enters the storage chamber in the transport vehicle through the feed pipe and the feed port. At the same time, the staff pulls the pull-out box, puts the dry ice in it and pushes it back in. Then the wheels roll along the track under the action of the driving source, so that the transport vehicle moves. At this time, the closing plate and the vertical plate are reset under the elasticity of the tension spring, the feed port is closed and the pull-out box is fixed. The movement of the transport vehicle will cause the air in front to quickly enter the pull-out box through several ventilation holes, causing the dry ice inside to sublimate, resulting in a drop in air temperature, dehumidification and purification effects. The air with reduced temperature enters the storage chamber through the L-shaped air guide pipe, the guide pipe and multiple exhaust pipes, and cooperates with the rotating stirring rod to control the temperature of the coal. After the transport vehicle arrives at the end point, the two electric telescopic cylinders work to move the push plate, which pushes the sealing door to separate from the transport vehicle through the stirring shaft. At the same time, the push plate pushes the coal in the storage chamber to complete the unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a diagram of the method steps of the present invention; Figure 2 It is a schematic diagram of the transportation equipment of the present invention; Figure 3 It is a front view cross-sectional structural diagram of the device of the present invention; Figure 4 It is a front cross-sectional view of the transport vehicle of the present invention; Figure 5 It is a schematic diagram of the transport vehicle of the present invention; Figure 6 It is a structural diagram of the fixing assembly of the present invention; Figure 7 It is an enlarged view of point A of the present invention.

[0018] Description of the drawings: 1. Crushing box; 101. Support plate; 102. Crushing knife; 103. Driving box; 104. Feeding pipe; 1041. Solenoid valve; 1042. Baffle; 2. Track; 3. Transport vehicle; 301. Wheel; 302. Feeding port; 303. Drawing slot; 304. Storage chamber; 305. Sealing door; 306. Air outlet; 307. Magnet; 308. Sliding slot; 4. L-shaped air guide pipe; 401. Guide pipe; 402. Exhaust pipe; 5. Push plate; 501. Electric telescopic cylinder; 5 02, stirring shaft; 5021, stirring rod; 503, driving motor; 6, closing plate; 601, side plate; 602, connecting plate; 603, vertical plate; 6031, sliding block; 6032, mounting plate; 604, tension spring; 605, fixed plate; 7, pull-out box; 701, panel; 7011, ventilation hole; 702, fixing groove; 8, fixing component; 801, perforation; 802, fixing rod; 8021, inclined plane; 803, moving groove; 804, moving plate; 805, reset spring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] See also Figure 1-7 As shown, a coal mining and transportation method comprises the following steps; Step 1: Coal ore crushing: the mined coal ore is conveyed to the top of the crushing box 1 by a conveyor, and then falls into the crushing box 1 to be crushed by two staggered crushing knives 102; Step 2: Feeding. The transport vehicle 3 moves to the bottom of the crushing box 1 through the wheels 301 and the track 2, and pushes the closing plate 6 to move through the baffle 1042, so that the feed port 302 is exposed and located directly below the discharge pipe 104, and the closing plate 6 drives the sliding block 6031 to move out of the sliding groove 308 through the connecting plate 602 and the vertical plate 603, so that the fixing rod 802 in the fixing assembly 8 is disengaged from the fixing groove 702 of the pull-out box 7 to cancel the fixation, and then the pull-out box 7 is pulled out to add dry ice, and at this time, the solenoid valve 1041 is opened, and the crushed coal enters the transport vehicle 3; Step 3, coal mine transportation, the wheel 301 rolls along the track 2 under the action of the driving source, so that the transport vehicle 3 moves. At this time, the closing plate 6 and the vertical plate 603 are reset under the elasticity of the tension spring 604, the feed port 302 is closed and the pull-out box 7 is fixed. The movement of the transport vehicle 3 will allow the front air to quickly pass through the plurality of ventilation holes 7011 into the pull-out box 7, so that the dry ice inside sublimates, resulting in a decrease in air temperature, dehumidification and purification effects. The air with reduced temperature enters the storage chamber 304 through the L-shaped air guide pipe 4, the guide pipe 401 and the plurality of exhaust pipes 402, and cooperates with the rotating stirring rod 5021 to control the temperature of the coal mine; Step 4, unloading. After the transport vehicle 3 reaches the end point, the two electric telescopic cylinders 501 work to move the push plate 5. The push plate 5 pushes the sealing door 305 to separate from the transport vehicle 3 through the stirring shaft 502. At the same time, the push plate 5 pushes the coal in the storage chamber 304 out to complete the unloading.

[0022] The driving source in the driving box 103 of the present application adopts the existing technology, that is, the form of a motor and two gears, and the energy in the transport vehicle 3 adopts the gas extracted in the mine and transported to the power plant on the ground. The power plant uses the gas to generate electricity to provide power for the entire coal mine, and the electrical components of the transport vehicle 3 and the crushing box 1 are controlled by an external controller. At the same time, an inclined conveyor belt is provided above the crushing box 1 to transport the mined coal from a low place to a high place.

[0023] See also Figure 2-7 As shown, two staggered crushing knives 102 are arranged inside the crushing box 1, a driving box 103 is installed on the outer wall of the crushing box 1, a driving source in the driving box 103 is connected to the two crushing knives 102, two support plates 101 and the lower surface of the track 2 are fixedly connected to the ground, support plates 101 are fixed on both sides of the lower surface of the crushing box 1, a feed pipe 104 is arranged at the center of the lower surface of the crushing box 1, a solenoid valve 1041 is installed on the feed pipe 104, and a guide slope is arranged around the inner bottom wall of the crushing box 1 located at the feed pipe 104. The transport vehicle 3 is arranged below the crushing box 1, and tracks 2 are arranged on both sides below the transport vehicle 3, and wheels 301 rolling with the tracks 2 are installed at the corners of the lower surface of the transport vehicle 3, and a material storage cavity 304 is provided inside the transport vehicle 3, and a draw-out groove 303 is provided inside the transport vehicle 3 in the material storage cavity 304, and a draw-out box 7 is slidably installed in the draw-out groove 303, and a plurality of dry ice is placed in the draw-out box 7, and a panel 701 is fixed at the end of the draw-out box 7 passing through the draw-out groove 303, and a plurality of ventilation holes 7011 are provided on the panel 701; A push plate 5 is provided on the side of the transport vehicle 3 away from the sealed door 305, a stirring shaft 502 is rotatably installed between the push plate 5 and the sealed door 305, a plurality of stirring rods 5021 are fixed to the outer wall of the stirring shaft 502, a driving motor 503 is installed to the outer wall of the sealed door 305 by bolts, the output end of the driving motor 503 is fixedly connected to the stirring shaft 502, electric telescopic cylinders 501 are symmetrically fixed to the outer wall of the transport vehicle 3 away from the sealed door 305, the output ends of the two electric telescopic cylinders 501 both penetrate the vehicle wall and are fixedly connected to the push plate 5, a feed port 302 is provided at the top center of the transport vehicle 3, a closing plate 6 is provided on the feed port 302, a side plate 601 is fixed to one end of the closing plate 6, and the lower surface of the crushing box 1 is located at the discharge pipe 104 A baffle 1042 is fixed on one side, and the side plate 601 cooperates with the baffle 1042. Fixed components 8 are provided inside the two side walls of the transport vehicle 3. The actuators of the two fixed components 8 are plugged into the pull-out box 7. The closing plate 6 cooperates with the fixed component 8. An L-shaped air duct 4 is provided on one side of the material storage cavity 304 and the pull-out groove 303. One end of the L-shaped air duct 4 is inserted into the pull-out groove 303 and passes through the pull-out box 7. The other end of the L-shaped air duct 4 is connected with a guide pipe 401. The lower surface of the guide pipe 401 is connected with a plurality of exhaust pipes 402. The guide pipe 401 is installed in the inner top wall of the transport vehicle 3. The plurality of exhaust pipes 402 all pass through the vehicle wall and are located in the material storage cavity 304. The L-shaped air duct 4 is movably connected to the contact portion of the pull-out box 7. The end of the closing plate 6 away from the side plate 601 is fixed with a connecting plate 602 on both sides, and the ends of the two connecting plates 602 are fixed with vertical plates 603. The two vertical plates 603 are in contact with the outer wall of the transport vehicle 3 and are slidably connected. The bottom of the outer wall of both sides of the transport vehicle 3 is provided with a sliding groove 308, and the two fixing components 8 are arranged in the groove ends of the sliding groove 308. The two vertical plates 603 are close to the outer wall of the transport vehicle 3. The two sliding blocks 6031 are fixed, and the two sliding blocks 6031 are located in the sliding groove 308 and fixed. To match the fixed component 8, mounting plates 6032 are fixed to the outer walls of both sides of the transport vehicle 3, and tension springs 604 are symmetrically fixed to one side of the two mounting plates 6032 close to the vertical plate 603. A fixing plate 605 is fixed to the end of each tension spring 604, and each fixing plate 605 is fixedly connected to the side wall of the vertical plate 603. A magnet 307 and a plurality of air outlet holes 306 are respectively provided on the upper surface of the transport vehicle 3 on both sides of the feed port 302, and the magnet 307 is magnetically adsorbed and connected to the lower surface of the side plate 601.

[0024] When the mined coal is transported, the mined coal is first transported to the top of the crushing box 1 through the conveyor, and then falls into the crushing box 1. At this time, the driving source in the driving box 103 is started by the controller, so that the two staggered crushing knives 102 rotate to crush the fallen coal. The crushed coal gathers on the discharge pipe 104, and at this time, the transport vehicle 3 moves to the bottom of the crushing box 1 along the track 2 through the wheels 301. During the movement, the side plate 601 contacts the baffle 1042, and under the continued movement of the transport vehicle 3, the baffle 1042 pushes the side plate 601 to move, and the side plate 601 drives the closing plate 6 to move. The closing plate 6 drives the vertical plate 603 to move through the connecting plate 602. The vertical plate 603 stretches the tension spring 604 and drives the sliding block 6031 to move along the sliding groove 308, canceling the support for the fixed component 8. At this time, the fixation of the pull-out box 7 is cancelled, and the feed port 302 is also exposed due to the movement of the closing plate 6. At this time, the controller starts the solenoid valve 1041, and the crushed coal ore falls into the storage chamber 304 in the transport vehicle 3 through the feed pipe 104 and the feed port 302. At the same time, the staff can pull out the pull-out box 7 from the pull-out slot 303 through the panel 701, put the dry ice in and then push it back in, and the drive motor 503 works, and its output end drives the stirring shaft 502 to rotate, and the rotating stirring shaft 502 drives a plurality of stirring rods 5021 to rotate, so that the plurality of stirring rods 5021 stir the crushed coal ore to increase the contact area with the air. After a period of time, the solenoid valve 1041 is closed, and the wheel 301 works under the action of the driving source (that is, the driving source is a motor and is installed on one wheel 301, and each two wheels 301 of the four wheels 301 are connected by an axle rod). The vertical plate 603 is connected to facilitate driving), so that the transport vehicle 3 moves along the track 2. When the transport vehicle 3 is completely moved out from under the crushing box 1, the vertical plate 603 will be reset under the elasticity of the tension spring 604. The vertical plate 603 drives the closing plate 6 to move through the connecting plate 602, so that the closing plate 6 closes the feed inlet 302 again and the magnet 307 is magnetically adsorbed to the lower surface of the side plate 601 to complete the fixing of the closing plate 6. When the vertical plate 603 moves, it also drives the sliding block 6031 to move back into the sliding groove 308. After the sliding block 6031 moves to the end of the sliding groove 308, it will contact and push the actuator in the fixing assembly 8. The actuator will be inserted into the fixing groove 702 of the pull-out box 7 to complete the fixing of the pull-out box 7 to prevent it from detaching during the movement of the transport vehicle 3. The movement of the transport vehicle 3 will cause the air in front to quickly pass through several ventilation holes 7011 and enter the pull-out box 7, causing the dry ice inside to sublime, resulting in a drop in air temperature, removal of moisture and purification effects. The air with reduced temperature enters the guide pipe 401 through the L-shaped air duct 4, and then enters the storage chamber 304 from multiple exhaust pipes 402, and cooperates with the rotating stirring rod 5021 to control the temperature of the coal mine. When the transport vehicle 3 reaches the end, the two electric telescopic cylinders 501 work to move the push plate 5, and the push plate 5 pushes the sealing door 305 to separate from the transport vehicle 3 through the stirring shaft 502. At the same time, the push plate 5 pushes the coal mine in the storage chamber 304 to complete the unloading. Therefore, the present application can transport the crushed coal mine by converting the dry ice from solid to gas, absorbing heat during the sublimation process, so that the lowered air cools the coal pile, and cooperates with the stirring rod to improve the cooling effect.

[0025] See also Figure 6 and Figure 7 As shown, the fixing component 8 includes a through hole 801 opened in the sliding groove 308, a square fixing rod 802 is provided in the through hole 801, and movable plates 804 are welded on both sides of the fixing rod 802. The fixing rod 802 is located at one end of the sliding groove 308 and is provided with a slope 8021, and the slope 8021 matches the sliding block 6031. The outer walls of both sides of the pull-out box 7 are provided with fixing grooves 702, and the other end of the fixing rod 802 is inserted into the fixing groove 702. The hole wall of the through hole 801 is symmetrically provided with movable grooves 803, and the two movable plates 804 are both slidably installed in the movable groove 803. Reset springs 805 are fixed between the two movable plates 804 and the groove wall of the movable groove 803.

[0026] After the sliding block 6031 moves along the sliding groove 308, the sliding block 6031 will contact the inclined surface 8021 of the fixed rod 802. With the continuous movement of the sliding block 6031, the fixed rod 802 will be pushed along the inclined surface 8021 to move along the perforation 801. The fixed rod 802 drives the moving plate 804 to move along the moving groove 803 and squeezes the return spring 805. Then, under the push of the sliding block 6031, the end of the fixed rod 802 is inserted into the fixed groove 702 of the pull-out box 7, thereby completing the fixation of the pull-out box 7.

[0027] The working principle of the present invention is: When the mined coal is transported, the mined coal is first transported to the top of the crushing box 1 through the conveyor, and then falls into the crushing box 1. At this time, the driving source in the driving box 103 is started by the controller, so that the two staggered crushing knives 102 rotate to crush the fallen coal. The crushed coal gathers on the discharge pipe 104, and at this time, the transport vehicle 3 moves to the bottom of the crushing box 1 along the track 2 through the wheels 301. During the movement, the side plate 601 contacts the baffle 1042, and under the continued movement of the transport vehicle 3, the baffle 1042 pushes the side plate 601 to move, and the side plate 601 drives the closing plate 6 to move. The closing plate 6 drives the vertical plate 603 to move through the connecting plate 602. The vertical plate 603 stretches the tension spring 604 and drives the sliding block 6031 to move along the sliding groove 308, canceling the support for the fixed component 8. At this time, the fixation of the pull-out box 7 is cancelled, and the feed port 302 is also exposed due to the movement of the closing plate 6. At this time, the controller starts the solenoid valve 1041, and the crushed coal ore falls into the storage chamber 304 in the transport vehicle 3 through the discharge pipe 104 and the feed port 302. At the same time, the staff can pull out the pull-out box 7 from the pull-out slot 303 through the panel 701, put the dry ice in and then push it back in. The drive motor 503 works and its output end drives the stirring shaft 502 to rotate. The rotating stirring shaft 502 drives a plurality of stirring rods 5021 to rotate, so that the plurality of stirring rods 5021 stir the crushed coal ore to increase the contact area with the air. After a period of time, the solenoid valve 1041 is closed, and the wheel 301 works under the action of the driving source (that is, the driving source is a motor and is installed on one wheel 301. Every two wheels 301 of the four wheels 301 are connected by an axle rod for easy driving), so that the transport vehicle 3 moves along the track 2. When the transport vehicle 3 is completely moved out from under the crushing box 1, the vertical plate 603 will be stretched. The spring 604 is elastically reset, and the vertical plate 603 drives the closing plate 6 to move through the connecting plate 602, so that the closing plate 6 closes the feed inlet 302 again and the magnet 307 is magnetically adsorbed to the lower surface of the side plate 601, completing the fixing of the closing plate 6. When the vertical plate 603 moves, it also drives the sliding block 6031 to move back into the sliding groove 308. After the sliding block 6031 moves to the end of the sliding groove 308, the sliding block 6031 will contact the inclined surface 8021 of the fixing rod 802. Under the continuous movement of the sliding block 6031, the fixing rod 802 will be pushed along the inclined surface 8021 to move along the perforation 801. The fixing rod 802 drives the moving plate 804 to move along the moving groove 803 and squeezes the reset spring 805. Then, under the push of the sliding block 6031, the end of the fixing rod 802 is inserted into the fixing groove 702 of the pull-out box 7, completing the fixing of the pull-out box 7 to prevent it from detaching during the movement of the transport vehicle 3. The movement of the transport vehicle 3 will cause the air in front to quickly pass through several ventilation holes 7011 and enter the pull-out box 7, causing the dry ice inside to sublime, resulting in a drop in air temperature, removal of moisture and purification effects. The air with reduced temperature enters the guide pipe 401 through the L-shaped air duct 4, and then enters the storage chamber 304 from multiple exhaust pipes 402, and cooperates with the rotating stirring rod 5021 to control the temperature of the coal. When the transport vehicle 3 reaches the end, the two electric telescopic cylinders 501 work to move the push plate 5, and the push plate 5 pushes the sealing door 305 to separate from the transport vehicle 3 through the stirring shaft 502. At the same time, the push plate 5 pushes the coal in the storage chamber 304 to complete the unloading.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A coal mining and transportation method, characterized in that , including the following steps; Step 1: Coal ore crushing: the mined coal ore is conveyed to the top of the crushing box (1) by a conveyor, and then falls into the crushing box (1) to be crushed by two staggered crushing knives (102); Step 2, feeding, the transport vehicle (3) moves to the bottom of the crushing box (1) through the wheels (301) and the track (2), and pushes the closing plate (6) to move through the baffle (1042), so that the feed port (302) is exposed and located directly below the discharge pipe (104), and the closing plate (6) drives the sliding block (6031) to move out of the sliding groove (308) through the connecting plate (602) and the vertical plate (603), so that the fixing rod (802) in the fixing component (8) is disengaged from the fixing groove (702) of the pull-out box (7) and the fixing is cancelled, and then the pull-out box (7) is pulled out to add dry ice, and at this time the solenoid valve (1041) is opened and the crushed coal enters the transport vehicle (3); Step 3, coal mine transportation, the wheel (301) rolls along the track (2) under the action of the driving source, so that the transport vehicle (3) moves, at this time, the closing plate (6) and the vertical plate (603) are reset under the elasticity of the tension spring (604), the feed port (302) is closed and the pull-out box (7) is fixed, and the movement of the transport vehicle (3) causes the front air to quickly pass through the plurality of ventilation holes (7011) into the pull-out box (7), so that the dry ice inside sublimates, resulting in a decrease in air temperature, dehumidification and purification effects, and the air with reduced temperature enters the storage chamber (304) through the L-shaped air guide pipe (4), the guide pipe (401) and the plurality of exhaust pipes (402), and cooperates with the rotating stirring rod (5021) to control the temperature of the coal mine; Step 4: Unloading. After the transport vehicle (3) reaches the end point, the two electric telescopic cylinders (501) work to move the push plate (5). The push plate (5) pushes the sealing door (305) to separate from the transport vehicle (3) through the stirring shaft (502). At the same time, the push plate (5) pushes the coal in the storage chamber (304) out, completing the unloading.

2. A coal mining and transportation method according to claim 1, characterized in that: Two staggered crushing knives (102) are provided inside the crushing box (1), support plates (101) are fixed on both sides of the lower surface of the crushing box (1), a feeding pipe (104) is provided at the center of the lower surface of the crushing box (1), the transport vehicle (3) is arranged below the crushing box (1), tracks (2) are provided on both sides below the transport vehicle (3), wheels (301) that roll with the tracks (2) are installed at the corners of the lower surface of the transport vehicle (3), a material storage cavity (304) is provided inside the transport vehicle (3), and a draw-out groove (303) is provided inside the transport vehicle (3) in the material storage cavity (304), a draw-out box (7) is slidably installed in the draw-out groove (303), a plurality of dry ice is placed in the draw-out box (7), an end of the draw-out box (7) passes through the draw-out groove (303) and is fixed with a panel (701), and a plurality of ventilation holes (7011) are provided on the panel (701); A feed port (302) is provided at the center of the top of the transport vehicle (3), a closing plate (6) is provided on the feed port (302), a side plate (601) is fixed to one end of the closing plate (6), a baffle (1042) is fixed to the lower surface of the crushing box (1) located on one side of the feed pipe (104), the side plate (601) and the baffle (1042) cooperate with each other, and fixing components (8) are provided inside the two side walls of the transport vehicle (3), and the two fixing components The actuators of the drawer box (8) are all plugged into the drawer box (7), the closing plate (6) cooperates with the fixing assembly (8), an L-shaped air guide tube (4) is provided on one side of the material storage cavity (304) and the drawer slot (303), one end of the L-shaped air guide tube (4) is inserted into the drawer slot (303) and passes through the drawer box (7), the other end of the L-shaped air guide tube (4) is connected to a guide tube (401), and the lower surface of the guide tube (401) is connected to a plurality of exhaust pipes (402).

3. A coal mining and transportation method according to claim 2, characterized in that: A push plate (5) is provided on a side of the transport vehicle (3) away from the sealing door (305); a stirring shaft (502) is rotatably mounted between the push plate (5) and the sealing door (305); a plurality of stirring rods (5021) are fixed to the outer wall of the stirring shaft (502); a driving motor (503) is mounted on the outer wall of the sealing door (305) via bolts; an output end of the driving motor (503) is fixedly connected to the stirring shaft (502); electric telescopic cylinders (501) are symmetrically fixed to the outer wall of the transport vehicle (3) away from the sealing door (305); the output ends of the two electric telescopic cylinders (501) both penetrate the vehicle wall and are fixedly connected to the push plate (5).

4. A coal mining and transportation method according to claim 2, characterized in that: Connecting plates (602) are fixed on both sides of one end of the closing plate (6) away from the side plate (601), and vertical plates (603) are fixed on the ends of the two connecting plates (602). The two vertical plates (603) are in contact with the outer wall of the transport vehicle (3) and are slidably connected. Sliding grooves (308) are provided at the bottom of the outer walls on both sides of the transport vehicle (3), and the two fixing components (8) are arranged in the groove ends of the sliding grooves (308). Sliding blocks (6031) are fixed on the two vertical plates (603) close to the outer wall of the transport vehicle (3), and the two sliding blocks (6031) are located in the sliding grooves (308) and matched with the fixing components (8).

5. A coal mining and transportation method according to claim 4, characterized in that: The outer walls of both sides of the transport vehicle (3) are fixed with mounting plates (6032), and tension springs (604) are symmetrically fixed on one side of the two mounting plates (6032) close to the vertical plate (603). A fixing plate (605) is fixed to the end of each tension spring (604), and each fixing plate (605) is fixedly connected to the side wall of the vertical plate (603). The upper surface of the transport vehicle (3) is located on both sides of the feed port (302), and magnets (307) and a plurality of air outlets (306) are respectively provided, and the magnets (307) are magnetically adsorbed and connected to the lower surface of the side plate (601).

6. A coal mining and transportation method according to claim 4, characterized in that: The fixing assembly (8) comprises a through hole (801) formed in the sliding groove (308), a square fixing rod (802) being provided in the through hole (801), movable plates (804) being welded to both sides of the fixing rod (802), an inclined surface (8021) being provided at one end of the fixing rod (802) located in the sliding groove (308), the inclined surface (8021) matching the sliding block (6031), and fixing grooves (702) being provided on both side outer walls of the pull-out box (7), and the other end of the fixing rod (802) being inserted into the fixing groove (702).

7. A coal mining and transportation method according to claim 6, characterized in that: The hole wall of the through hole (801) is symmetrically provided with movable grooves (803), the two movable plates (804) are slidably installed in the movable grooves (803), and a return spring (805) is fixed between the two movable plates (804) and the groove wall of the movable groove (803).

8. A coal mining and transportation method according to claim 2, characterized in that: The guide pipe (401) is installed in the inner top wall of the transport vehicle (3), a plurality of the exhaust pipes (402) penetrate the vehicle wall and are located in the material storage chamber (304), and the portion where the L-shaped air guide pipe (4) contacts the drawer box (7) is movably connected.

9. A coal mining and transportation method according to claim 2, characterized in that: A drive box (103) is installed on the outer wall of the crushing box (1), a drive source in the drive box (103) is connected to the two crushing knives (102), and the two support plates (101) and the lower surface of the track (2) are fixedly connected to the ground.

10. A coal mining and transportation method according to claim 2, characterized in that: A solenoid valve (1041) is installed on the feed pipe (104), and a guide slope is provided on the inner bottom wall of the crushing box (1) around the feed pipe (104).

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