Coal gangue conveying device for highway construction

Abstract

The invention belongs to the technical field of conveying devices, and particularly relates to a coal gangue conveying device for highway construction, which comprises a movable base, a conveying frame, conveying rollers, a barrier strip conveying belt and a conveying motor, and further comprises a conveying angle adjusting mechanism arranged between the top of the movable base and the bottom of the conveying frame; and the conveying power adjusting mechanism is arranged between the top of the movable base and the bottom of the conveying frame. Through cooperative work of the conveying angle adjusting mechanism, the conveying power adjusting mechanism and the coal gangue weighing mechanism, the power of a conveying motor is automatically adjusted according to the inclination angle of the conveying device and the weight of coal gangue, safe conveying is guaranteed, and energy is saved; the dust suction mechanism can effectively suck and remove dust generated in the conveying process, the power of a dust suction fan can be intelligently adjusted according to the amount of coal gangue, and pollution is reduced; the blowing cleaning mechanism cleans the conveying belt through filtered gas and is matched with the dust collection mechanism, the conveying performance is improved, and the environment is kept clean and tidy.

Description

Technical Field

[0001] The invention belongs to the technical field of conveying devices, and in particular relates to a coal gangue conveying device for highway construction. Background Art

[0002] As a material with certain engineering properties, coal gangue has been used in highway construction due to its wide source and relatively low cost, such as road base paving, filling materials, etc., which can effectively reduce the construction cost and realize the secondary utilization of resources. In the process of highway construction, coal gangue is generally transported by a conveying device. For example, Announcement No.: CN118515037A discloses a coal gangue conveying device.

[0003] However, since the terrain of highway construction sites is often undulating, in order to efficiently transport the gangue from the stacking point or processing site to the place of use, it is often necessary to set the conveying device to an adjustable tilt state. However, when the existing conveying device is tilted, the motor not only has to deal with the friction between the conveyor belt and the conveyor roller and between the material and the conveyor belt, but also needs to overcome the component force of the material gravity along the tilt direction of the conveyor belt to ensure that the material can be stably transported upward. This additional force causes the power consumed by the motor to increase significantly, and the tilt angle of the conveying device is positively correlated with the power consumption of the motor; in addition, the weight of the gangue on the conveyor belt is also a key factor affecting the power of the motor. The heavier the gangue, the greater the power required for the motor to overcome the gravity component and friction, which will also lead to an increase in the power consumed by the motor. However, the motor of the current conveying device lacks intelligent adjustment capabilities, and cannot automatically adjust the power used according to the tilt angle of the conveying device and the real-time weight of the surface gangue. It cannot ensure the safe transportation of the gangue, and will also cause a lot of energy waste and increase construction costs.

[0004] Therefore, a coal gangue conveying device for highway construction is proposed. Summary of the invention

[0005] The object of the present invention is to provide a coal gangue conveying device for highway construction in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a coal gangue conveying device for highway construction, comprising a mobile base, a conveying frame, a conveying roller, a baffle conveyor belt and a conveying motor, wherein the conveying roller is rotatably arranged inside the conveying frame, the baffle conveyor belt is transmission-arranged on the roller wall of the conveying roller, the conveying motor is fixedly arranged on one side of the conveying frame, and the output end of the conveying motor is fixedly connected to one end of the conveying roller, and further comprising: A conveying angle adjustment mechanism is arranged between the top of the movable base and the bottom of the conveying frame; A conveying power adjustment mechanism is arranged between the top of the mobile base and the bottom of the conveying frame; A gangue weighing mechanism is arranged on the top of the conveying frame, and the gangue weighing mechanism is longitudinally located above the barrier conveyor belt; A dust collecting mechanism is arranged on one side of the top of the conveying frame; An air blowing cleaning mechanism is arranged on one side of the bottom of the conveying frame, and the air blowing cleaning mechanism is connected to the dust collecting mechanism; A PLC controller is fixedly arranged on the top of the mobile base, and the conveying motor, the conveying power regulating mechanism, the coal gangue weighing mechanism, the dust suction mechanism and the air blowing cleaning mechanism are all electrically connected to the PLC controller.

[0007] Preferably, the conveying angle adjustment mechanism includes a support rod fixedly arranged on one side of the top of the movable base, the upper end of the support rod is rotatably connected to one side of the bottom of the conveying frame, a hydraulic cylinder is provided on the top of the movable base and away from the support rod, and the movable end of the hydraulic cylinder is rotatably connected to the bottom of the conveying frame.

[0008] Preferably, the transmission power adjustment mechanism includes a box body fixedly arranged on the top of the movable base, a slider is provided inside the box body for transverse sliding, a spring is fixed between one side of the slider and the inner wall of the box body, a pull rope is fixed on the other side of the slider, one end of the pull rope away from the slider extends to the outside of the box body and is fixedly connected to the bottom of the conveying frame, a resistance rod is fixedly arranged inside the box body for transverse sliding, a conductive ring is fixedly arranged inside the slider, and the conductive ring is slidably connected to the resistance rod.

[0009] Preferably, a rope threading opening is provided on one side of the box body, and two auxiliary wheels are symmetrically rotated inside the rope threading opening, and the pull rope is passed through and arranged between the two auxiliary wheels.

[0010] Preferably, the gangue weighing mechanism includes a cylindrical shell located above the baffle conveyor belt, both ends of the cylindrical shell are fixedly provided with fixed plates fixedly connected to the two sides of the conveying frame, a weighing roller is provided inside the cylindrical shell, and a rotating shaft rotatably connected to the cylindrical shell is fixedly provided at the center of the weighing roller, a weighing motor is fixedly provided on the side wall of one of the fixed plates, and the output end of the weighing motor is fixedly connected to one end of the rotating shaft, a roller wall of the weighing roller is provided with a plurality of distributed weighing slots, and wireless weighing sensors are fixedly provided at the bottom of the plurality of weighing slots, a feed hopper is fixedly provided on the top of the cylindrical shell, and a discharge port is provided at the bottom of the cylindrical shell.

[0011] Preferably, the dust suction mechanism includes a hollow dust suction plate fixedly arranged on one side of the top of the conveying rack, a plurality of evenly distributed dust suction holes are opened on the side of the hollow dust suction plate, a support plate is fixedly arranged on the side wall of the conveying rack, a dust suction box is fixedly arranged on the upper surface of the support plate, a dust suction fan is fixedly arranged inside the dust suction box, an air intake pipe is fixedly arranged on the other side of the dust suction box, and an air outlet pipe is fixedly arranged on the other side of the dust suction box, one end of the air intake pipe away from the dust suction box is fixedly connected to the hollow dust suction plate, and one end of the air outlet pipe away from the dust suction box is connected to the air blowing cleaning mechanism, and a filter is detachably provided inside the dust suction box.

[0012] Preferably, a disassembly port is provided at the top of the dust box, and a sealing cover is provided inside the disassembly port, the sealing cover is fixedly connected to the dust box by bolts, a fixing frame is provided inside the dust box, and the top of the fixing frame is fixedly connected to the bottom of the sealing cover, the filter is fixedly arranged inside the fixing frame, a drive shaft is fixedly arranged at one end of the fan blade rotating shaft of the dust suction fan, and a cleaning brush which is arranged to contact one side of the filter is fixedly arranged at the end of the drive shaft.

[0013] Preferably, the air blowing cleaning mechanism includes a connecting plate fixedly arranged at the bottom of the conveying frame, a longitudinally arranged air blowing cleaning pipe is fixedly arranged on one side of the connecting plate, a plurality of evenly distributed air blowing cleaning heads are fixedly arranged on the upper side of the air blowing cleaning pipe, and one end of the air outlet pipe away from the dust collection box is fixedly connected to one end of the air blowing cleaning pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Through the provision of the conveying angle adjustment mechanism, conveying power adjustment mechanism and coal gangue weighing mechanism, when the inclination angle of the conveying device changes, the conveying angle adjustment mechanism is actuated and the conveying power adjustment mechanism automatically adjusts the circuit resistance according to the change in the inclination angle, preliminarily changes the conveying motor power, and ensures that at different inclination angles, the conveying motor has sufficient power to overcome the conveying resistance, avoid material sliding, and ensure the safe transportation of coal gangue; the coal gangue weighing mechanism measures the weight of coal gangue in real time, and the PLC controller further accurately adjusts the motor power according to the weight signal, so that the motor power is accurately matched with the actual conveying demand, avoiding energy waste caused by high-power operation under light load, and effectively reducing construction costs.

[0015] Through the dust suction mechanism, hollow dust suction plates and dust suction fans are used to timely remove the dust generated during the gangue transportation process. The dust suction holes are evenly distributed and can effectively capture the dust. The filter in the dust suction box filters the dust to prevent it from being discharged into the air, reducing dust pollution at the construction site, protecting the health of construction workers, and avoiding the adverse effects of dust on the surrounding environment. In addition, after the gangue weighing mechanism feeds back the gangue weight signal to the PLC controller, the PLC controller will synchronously adjust the power of the dust suction fan so that it can adaptively adjust with the changes in the amount of gangue transported to avoid energy waste.

[0016] Through the set air blowing cleaning mechanism, the air blowing cleaning mechanism and the dust suction mechanism cooperate with each other, the gas filtered by the dust suction box is discharged into the air blowing cleaning pipe through the air outlet pipe, and then blown to the lower surface of the baffle conveyor belt by multiple air blowing cleaning heads, so as to clean the baffle conveyor belt after a single conveying of coal gangue, remove the coal gangue fragments, coal powder, coal chips and other residues attached to the surface, and improve the conveying effect of the conveyor belt; the dust gas generated during the cleaning process can be sucked into the dust suction mechanism again through the dust suction hole for filtration, forming a relatively closed-loop cleaning process to keep the working environment clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a coal gangue conveying device for highway construction provided by the present invention; Figure 2 It is a schematic diagram of the planar structure of a gangue conveying device for highway construction provided by the present invention; Figure 3 It is a structural schematic diagram of a conveying power regulating mechanism of a gangue conveying device for highway construction provided by the present invention; Figure 4 It is a schematic diagram of the internal structure of a cylindrical shell of a gangue conveying device for highway construction provided by the present invention; Figure 5 It is a schematic diagram of the internal structure of a dust collection box of a gangue conveying device for highway construction provided by the present invention; Figure 6 It is a stereoscopic diagram of an air blowing and cleaning mechanism of a gangue conveying device for highway construction provided by the present invention.

[0018] In the figure: 1 mobile base, 2 conveying frame, 3 conveying roller, 4 stopper conveyor belt, 5 conveying motor, 6 conveying angle adjustment mechanism, 61 support rod, 62 hydraulic cylinder, 7 conveying power adjustment mechanism, 71 box body, 72 slider, 73 spring, 74 pull rope, 75 resistance rod, 76 conductive ring, 77 auxiliary wheel, 8 coal gangue weighing mechanism, 81 columnar shell, 82 fixed plate, 83 weighing roller, 84 rotating shaft, 85 weighing motor, 86 weighing trough, 87 wireless weighing sensor, 88 feed hopper, 89 discharge port, 9 dust suction mechanism, 91 hollow dust suction plate, 92 dust suction hole, 93 support plate, 94 dust suction box, 95 dust suction fan, 96 suction pipe, 97 exhaust pipe, 98 filter, 99 sealing cover, 910 fixing frame, 911 driving shaft, 912 cleaning brush, 10 air blowing cleaning mechanism, 101 connecting plate, 102 air blowing cleaning pipe, 103 air blowing cleaning head, 11 PLC controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 6 As shown, a gangue conveying device for highway construction includes a mobile base 1, a conveying frame 2, a conveying roller 3, a barrier conveyor belt 4 and a conveying motor 5. The conveying roller 3 is rotatably arranged inside the conveying frame 2, the barrier conveyor belt 4 is transmission-arranged on the roller wall of the conveying roller 3, the conveying motor 5 is fixedly arranged on one side of the conveying frame 2, and the output end of the conveying motor 5 is fixedly connected to one end of the conveying roller 3. A tensioning roller is arranged inside the conveying frame 2 and in the middle of the conveying roller 3 to ensure the stability of the barrier conveyor belt 4 during the transmission process, and also includes: The conveying angle adjustment mechanism 6 is arranged between the top of the mobile base 1 and the bottom of the conveying frame 2. The conveying angle adjustment mechanism 6 includes a support rod 61 fixedly arranged on one side of the top of the mobile base 1. The upper end of the support rod 61 is rotatably connected to one side of the bottom of the conveying frame 2. A hydraulic cylinder 62 is provided on the top of the mobile base 1 and away from the side of the support rod 61. The moving end of the hydraulic cylinder 62 is rotatably connected to the bottom of the conveying frame 2. When the hydraulic cylinder 62 is extended, it pushes the bottom of the conveying frame 2 upward, so that the bottom of the conveying frame 2 rotates around the upper end of the support rod 61 and lifts one end upward.

[0021] The transmission power adjustment mechanism 7 is arranged between the top of the mobile base 1 and the bottom of the conveying frame 2. The transmission power adjustment mechanism 7 includes a box body 71 fixedly arranged on the top of the mobile base 1. A slider 72 is provided inside the box body 71 for horizontal sliding. A spring 73 is fixed between one side of the slider 72 and the inner wall of the box body 71. A pull rope 74 is fixed on the other side of the slider 72. One end of the pull rope 74 away from the slider 72 extends to the outside of the box body 71 and is fixedly connected to the bottom of the conveying frame 2. A resistance rod 75 is fixedly provided inside the box body 71 for horizontal sliding. A conductive ring 76 is fixed inside the slider 72. The conductive ring 76 is slidably connected to the resistance rod 75. During the process of adjusting the tilt angle of the conveying frame 2, the conveying frame 2 The bottom of the box body 71 will pull one end of the pull rope 74, so that the other end of the pull rope 74 pulls the slider 72 to overcome the elastic force of the spring 73 and move inside the box body 71. When the slider 72 moves, it drives the conductive ring 76 to move on the resistance rod 75, so that the resistance value of the resistance rod 75 and the conveying motor 5 connected in the same circuit is reduced. When the switch of the conveying motor 5 is turned on, the current of the circuit will increase, thereby increasing the power of the conveying motor 5; a rope threading port is provided on one side of the box body 71, and two auxiliary wheels 77 are symmetrically rotated inside the rope threading port. The pull rope 74 passes through the two auxiliary wheels 77. The auxiliary wheels 77 can prevent the pull rope 74 from being squeezed and contacted with the rope threading port on the box body 71, thereby reducing the wear of the pull rope 74.

[0022] The gangue weighing mechanism 8 is arranged on the top of the conveying frame 2, and the gangue weighing mechanism 8 is longitudinally located above the baffle conveyor belt 4. The gangue weighing mechanism 8 includes a cylindrical shell 81 located above the baffle conveyor belt 4, and both ends of the cylindrical shell 81 are fixedly provided with fixed plates 82 fixedly connected to both sides of the conveying frame 2. A weighing roller 83 is arranged inside the cylindrical shell 81, and a rotating shaft 84 rotatably connected to the cylindrical shell 81 is fixedly arranged at the center of the weighing roller 83. A weighing motor 85 is fixedly arranged on the side wall of one of the fixed plates 82, and the output end of the weighing motor 85 is fixedly connected to one end of the rotating shaft 84. The roller wall of the weighing roller 83 is provided with a plurality of distributed weighing slots. 86, a wireless weighing sensor 87 is fixedly provided at the bottom of each weighing trough 86, a feed hopper 88 is fixedly provided at the top of the cylindrical shell 81, and a discharge port 89 is provided at the bottom of the cylindrical shell 81, the gangue inside the feed hopper 88 then enters the inside of the weighing trough 86, and the fallen gangue can be weighed by the wireless weighing sensor 87, and the weighing motor 85 drives the weighing roller 83 to rotate, so that the multiple weighing troughs 86 pass under the feed hopper 88 in turn and continuously weigh the gangue, and after the gangue is weighed, it will be discharged through the discharge port 89 and fall on the surface of the barrier conveyor belt 4, so that the weight of the gangue on the barrier conveyor belt 4 can be automatically weighed.

[0023] The dust collection mechanism 9 is arranged on one side of the top of the conveying frame 2. The dust collection mechanism 9 includes a hollow dust collection plate 91 fixedly arranged on one side of the top of the conveying frame 2. A plurality of evenly distributed dust collection holes 92 are opened on the side of the hollow dust collection plate 91. A support plate 93 is fixedly arranged on the side wall of the conveying frame 2. A dust collection box 94 is fixedly arranged on the upper surface of the support plate 93. A dust collection fan 95 is fixedly arranged inside the dust collection box 94. An air suction pipe 96 is fixedly arranged on the other side of the dust collection box 94. An air outlet pipe 97 is fixedly arranged on the other side of the dust collection box 94. The air suction pipe 96 is away from the dust collection. One end of the dust box 94 is fixedly connected to the hollow dust collecting plate 91, and the end of the air outlet pipe 97 away from the dust box 94 is connected to the air blowing cleaning mechanism 10. The dust box 94 is detachably provided with a filter screen 98. The dust suction fan 95 can suck out the internal gas of the dust box 94, the internal gas of the suction pipe 96 and the internal gas of the hollow dust collecting plate 91, so that the interior of the hollow dust collecting plate 91 is in a negative pressure state, so that the dust gas can be sucked into the suction pipe 96 and the dust box 94 through the dust suction hole 92, and the dust gas is filtered through the filter screen 98 and then passes through the dust collecting hole 92. The dust collecting box 94 is discharged through the air outlet pipe 97 to avoid dust pollution in the air; a disassembly opening is provided on the top of the dust collecting box 94, and a sealing cover 99 is provided inside the disassembly opening. The sealing cover 99 is fixedly connected to the dust collecting box 94 by bolts. A fixing frame 910 is provided inside the dust collecting box 94, and the top of the fixing frame 910 is fixedly connected to the bottom of the sealing cover 99. The filter screen 98 is fixedly arranged inside the fixing frame 910. The construction personnel loosen the bolts on the sealing cover 99 with a wrench, so that the sealing cover 99 is taken out from the top of the dust collecting box 94, and the fixing frame 910 is fixedly connected to the bottom of the sealing cover 99. 10 is also taken out, so that the filter 98 inside the fixed frame 910 can be maintained; a drive shaft 911 is fixedly provided at one end of the fan blade rotating shaft 84 of the dust suction fan 95, and a cleaning brush 912 is fixedly provided at the end of the driving shaft 911 and is arranged in contact with one side of the filter 98. The fan blades of the dust suction fan 95 will drive the driving shaft 911 to rotate when rotating, so that the cleaning brush 912 can rotate and clean the surface of the filter 98, thereby avoiding the phenomenon that dust particles block the filter 98, and improving the filtering effect of dust gas.

[0024] An air blowing cleaning mechanism 10 is arranged on one side of the bottom of the conveying frame 2, and the air blowing cleaning mechanism 10 is connected to the dust suction mechanism 9. The air blowing cleaning mechanism 10 includes a connecting plate 101 fixedly arranged at the bottom of the conveying frame 2, and one side of the connecting plate 101 is fixedly provided with a longitudinally arranged air blowing cleaning pipe 102, and the upper side of the air blowing cleaning pipe 102 is fixedly provided with a plurality of evenly distributed air blowing cleaning heads 103, and the end of the air outlet pipe 97 away from the dust suction box 94 is fixedly connected to one end of the air blowing cleaning pipe 102, and the filtered gas will be discharged into the interior of the air blowing cleaning pipe 102, and then blown to the lower surface of the baffle conveyor belt 4 through a plurality of air blowing cleaning heads 103, so that the baffle conveyor belt 4 can be blown and cleaned after a single conveying of coal gangue, thereby improving the conveying effect of the baffle conveyor belt 4.

[0025] The PLC controller 11 is fixedly arranged on the top of the mobile base 1 , and the conveying motor 5 , the conveying power adjustment mechanism 7 , the coal gangue weighing mechanism 8 , the dust suction mechanism 9 and the air blowing cleaning mechanism 10 are all electrically connected to the PLC controller 11 .

[0026] The operating principle of the present invention is described as follows: the construction personnel push the conveying device to the road section where the highway is being constructed, so that one end of the feed hopper 88 of the conveying device is set close to the direction of the coal gangue loading vehicle, and the other end of the conveying device is moved above the highway roadbed. During the movement, due to the large terrain fluctuations, the inclination angle of the conveying frame 2 needs to be adjusted. At this time, the construction personnel manually operate the PLC controller 11 to control the extension of the hydraulic cylinder 62 through the PLC controller 11. When the hydraulic cylinder 62 is extended, it pushes the bottom of the conveying frame 2 upward, so that the bottom of the conveying frame 2 rotates around the upper end of the support rod 61 and lifts one end upward. When the end of the conveying frame 2 that is tilted upward is aligned with the highway roadbed, the extension of the hydraulic cylinder 62 is stopped; During the process of adjusting the inclination angle of the conveyor frame 2, the bottom of the conveyor frame 2 will pull one end of the pull rope 74, so that the other end of the pull rope 74 pulls the slider 72 to overcome the elastic force of the spring 73 and move inside the box body 71. When the slider 72 moves, it drives the conductive ring 76 to move on the resistance rod 75, so that the resistance value of the resistance rod 75 and the conveying motor 5 connected in the same circuit is reduced. When the switch of the conveying motor 5 is turned on, the current of the circuit will increase, thereby increasing the power of the conveying motor 5. As the inclination angle of the conveyor frame 2 increases, the resistance value in the circuit decreases, the current increases, and the conveying motor 5 increases. The greater the power of 5 (the inclination angle between 0°-25° can ensure the safe transportation of coal gangue. The main reason for the increase in the power of the conveying motor 5 is the friction between the barrier conveyor belt 4 and the conveying roller 3 and the material and the barrier conveyor belt 4. It is also necessary to overcome the component force of the material gravity along the inclination direction of the barrier conveyor belt 4). Therefore, the power of the conveying motor 5 can be adaptively adjusted according to the inclination angle of the conveying frame 2, which not only ensures the safe transportation of coal gangue, but also avoids the phenomenon of energy waste. In this process, the power of the conveying motor 5 is preliminarily set according to the inclination angle of the barrier conveyor belt 4. After the device is ready, the construction personnel open the discharge port of the gangue loading vehicle, so that the gangue falls into the feed hopper 88, and manually operate the PLC controller 11 to synchronously turn on the switch of the conveying motor 5 and the switch of the weighing motor 85. The gangue in the feed hopper 88 then enters the weighing trough 86, and the fallen gangue can be weighed by the wireless weighing sensor 87. The internal resistance strain gauge of the wireless weighing sensor 87 will deform more with the weight of the gangue, and the two ends of the resistance strain gauge are connected to the measuring circuit, which can output a voltage signal proportional to the gravity of the gangue. The output weak voltage signal will be amplified by the amplifier. The wireless weighing sensor 87 has a built-in Bluetooth module. After completing the signal processing and conversion After the change, it is sent to the PLC controller 11 through the Bluetooth module. As the weighing motor 85 works, the weighing roller 83 rotates, so that multiple weighing slots 86 pass under the feed hopper 88 in turn and continuously weigh the gangue. After the gangue is weighed, it will be discharged through the discharge port 89 and fall on the surface of the barrier conveyor belt 4, so that the weight of the gangue falling on the barrier conveyor belt 4 each time can be automatically weighed. Since the weight of the gangue inside the multiple weighing slots 86 is inconsistent, and the weighing value of each wireless weighing sensor 87 is also different, but the value detected each time is within a relatively stable range, the PLC controller 11 control system will default to continuous and stable feeding (the weight fluctuation of each weighing slot 86 within a period of time does not exceed ±5%). , which can be regarded as a relatively stable state). If the weight of the gangue falling in each time is larger, the power of the conveying motor 5 needs to be increased on the basis of the initial setting to complete the effective conveying of the gangue. After the PLC controller 11 continuously receives the electrical signals fed back by the multiple wireless weighing sensors 87, it continues to adjust the size on the basis of the power value initially set for adjusting the conveying motor 5 (the PLC controller 11 is equipped with a corresponding Bluetooth receiving module, which searches and connects to the signal sent by the Bluetooth module of the wireless weighing sensor 87. After receiving the signal, the PLC controller 11 will analyze and process the signal according to the pre-written program, and calculate the appropriate power control value according to the corresponding relationship between the signal and the power of the conveying motor 5. , and adjust the power of the conveying motor 5. The heavier the weight of the coal gangue, the greater the power of the conveying motor 5 is required, and vice versa). The conveying motor 5 will work according to the power adjusted for the second time by the PLC controller 11, and can drive the conveying roller 3 and the barrier conveyor belt 4 to transmit and transport the coal gangue to the roadbed for construction. Before the coal gangue falls on the surface of the barrier conveyor belt 4, since there is no coal gangue on the surface of the barrier conveyor belt 4, the conveying motor 5 works at the power set after the angle of the barrier conveyor belt 4 is adjusted. As the coal gangue on the surface of the barrier conveyor belt 4 gradually increases, the power of the conveying motor 5 becomes larger and larger. As time goes by, coal gangue will be discharged from the end of the barrier conveyor belt 4. At this time, one end of the barrier conveyor belt 4 falls into the coal gangue.The other end of the barrier conveyor belt 4 discharges the gangue. If the amount of gangue entering the feed hopper 88 does not fluctuate greatly during this process, the weight of the gangue on the surface of the barrier conveyor belt 4 is in a relatively stable state. At this time, the power of the conveying motor 5 is also in a relatively stable value, so that the power of the conveying motor 5 can be adaptively adjusted based on the initially set power according to the weight of the gangue, which not only ensures the safe transportation of the gangue, but also avoids the phenomenon of energy waste. During the transportation of gangue, dust will be generated (due to mutual collision and friction, gangue can easily fall off from larger blocks and enter the air to form dust) and the construction personnel can manually operate the PLC controller 11 to turn on the dust suction fan 95. The dust suction fan 95 can suck out the internal gas of the dust suction box 94, the internal gas of the suction pipe 96 and the internal gas of the hollow dust suction plate 91, so that the interior of the hollow dust suction plate 91 is in a negative pressure state, so that the dust gas can be sucked into the interior of the suction pipe 96 and the dust suction box 94 through the dust suction hole 92, and the dust gas is filtered by the filter 98 and discharged through the outlet pipe 97 to avoid dust pollution of the air. As the amount of gangue on the surface of the baffle conveyor belt 4 is different, the amount of dust generated on the surface of the baffle conveyor belt 4 is also different (if the amount of dust gas is small, the dust suction fan 95 is turned on at a higher power). If the dust gas volume is large and the dust suction fan 95 continues to work at a relatively low power, the dust gas will not be cleaned up properly and the construction environment will still be polluted. After the gangue is automatically weighed and an electrical signal is fed back to the PLC controller 11, the PLC controller 11 will also adjust the power of the dust suction fan 95 so that the power of the dust suction fan 95 is adaptively adjusted with the weight of the conveyed gangue to avoid energy waste. It should be emphasized that the amount of gangue falling on the surface of the baffle conveyor belt 4 is small at the beginning, and the power of the dust suction fan 95 is small at this time. As the gangue on the surface of the baffle conveyor belt 4 gradually increases, the power of the dust suction fan 95 becomes larger and larger until the amount of gangue is in a relatively stable state, and the power of the dust suction fan 95 is also in a relatively stable value. Since there is a lot of dust gas, it will cause blockage when it continues to pass through the aperture of the filter 98. The fan blades of the dust suction fan 95 will drive the drive shaft 911 to rotate when rotating, so that the cleaning brush 912 can rotate and clean the surface of the filter 98 to avoid the phenomenon that dust particles block the filter 98, thereby improving the filtering effect of the dust gas. When it is necessary to maintain the filter 98 and the interior of the dust box 94, the construction personnel loosen the bolts on the sealing cover 99 with a wrench, so that the sealing cover 99 is taken out from the top of the dust box 94, and the fixing frame 910 is also taken out, so that the filter 98 inside the fixing frame 910 can be maintained. At the same time, the construction personnel can clean and maintain the dust and impurities cleaned from the inside of the dust box 94 through the cleaning device, and install the filter 98 inside the dust box 94 after the maintenance is completed; Since residues (gangue fragments, coal powder and coal dust) will be attached to the surface of the barrier conveyor belt 4 when conveying coal gangue, the gas filtered by the dust box 94 will be discharged into the interior of the air blowing cleaning pipe 102 through the air outlet pipe 97, and then blown to the lower surface of the barrier conveyor belt 4 through multiple air blowing cleaning heads 103, so that the barrier conveyor belt 4 can be blown and cleaned after conveying coal gangue once, thereby improving the conveying effect of the barrier conveyor belt 4. During the cleaning process, the attached residues will be blown up and become dust gas. At this time, the dust suction hole 92 will suck in the dust gas again for filtration. However, larger particles of residue will be blown into the interior of the conveying frame 2 and fall to the ground along the bottom inclined surface of the conveying frame 2, and the construction personnel can clean them later.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gangue conveying device for highway construction, comprising a mobile base (1), a conveying frame (2), a conveying roller (3), a barrier conveyor belt (4) and a conveying motor (5), wherein the conveying roller (3) is rotatably arranged inside the conveying frame (2), the barrier conveyor belt (4) is transmission-arranged on the roller wall of the conveying roller (3), the conveying motor (5) is fixedly arranged on one side of the conveying frame (2), and the output end of the conveying motor (5) is fixedly connected to one end of the conveying roller (3), characterized in that: Also includes: A conveying angle adjustment mechanism (6) is arranged between the top of the movable base (1) and the bottom of the conveying frame (2); A conveying power adjustment mechanism (7) is arranged between the top of the movable base (1) and the bottom of the conveying frame (2); A coal gangue weighing mechanism (8) is arranged on the top of the conveying frame (2), and the coal gangue weighing mechanism (8) is located longitudinally above the barrier conveyor belt (4); A dust collecting mechanism (9) is arranged on one side of the top of the conveying frame (2); An air blowing cleaning mechanism (10) is arranged on one side of the bottom of the conveying frame (2), and the air blowing cleaning mechanism (10) is connected to the dust collecting mechanism (9); A PLC controller (11) is fixedly arranged on the top of the mobile base (1), and the conveying motor (5), the conveying power adjustment mechanism (7), the coal gangue weighing mechanism (8), the dust suction mechanism (9) and the air blowing cleaning mechanism (10) are all electrically connected to the PLC controller (11).

2. A gangue conveying device for highway construction according to claim 1, characterized in that: The conveying angle adjustment mechanism (6) comprises a support rod (61) fixedly arranged on one side of the top of the movable base (1), the upper end of the support rod (61) being rotatably connected to one side of the bottom of the conveying frame (2), and a hydraulic cylinder (62) being provided on the top of the movable base (1) and away from the support rod (61), the movable end of the hydraulic cylinder (62) being rotatably connected to the bottom of the conveying frame (2).

3. A gangue conveying device for highway construction according to claim 1, characterized in that: The transmission power adjustment mechanism (7) comprises a box body (71) fixedly arranged on the top of the mobile base (1); a slider (72) is provided inside the box body (71) for transverse sliding; a spring (73) is fixedly provided between one side of the slider (72) and the inner wall of the box body (71); a pull rope (74) is fixedly provided on the other side of the slider (72); an end of the pull rope (74) away from the slider (72) extends to the outside of the box body (71) and is fixedly connected to the bottom of the transmission frame (2); a resistance rod (75) is fixedly provided inside the box body (71) for transverse sliding; a conductive ring (76) is fixedly provided inside the slider (72); and the conductive ring (76) is slidably connected to the resistance rod (75).

4. A gangue conveying device for highway construction according to claim 3, characterized in that: A rope threading opening is provided on one side of the box body (71), and two auxiliary wheels (77) are symmetrically rotated inside the rope threading opening, and the pull rope (74) is passed through and arranged between the two auxiliary wheels (77).

5. The gangue conveying device for highway construction according to claim 1, characterized in that: The gangue weighing mechanism (8) comprises a cylindrical shell (81) located above the barrier conveyor belt (4), both ends of the cylindrical shell (81) are fixedly provided with fixed plates (82) fixedly connected to both sides of the conveyor frame (2), a weighing roller (83) is provided inside the cylindrical shell (81), a rotating shaft (84) rotatably connected to the cylindrical shell (81) is fixedly provided at the center of the weighing roller (83), a weighing motor (85) is fixedly provided on the side wall of one of the fixed plates (82), and the output end of the weighing motor (85) is fixedly connected to one end of the rotating shaft (84), a roller wall of the weighing roller (83) is provided with a plurality of distributed weighing slots (86), and a wireless weighing sensor (87) is fixedly provided at the bottom of the plurality of weighing slots (86), a feed hopper (88) is fixedly provided on the top of the cylindrical shell (81), and a discharge port (89) is provided at the bottom of the cylindrical shell (81).

6. A gangue conveying device for highway construction according to claim 1, characterized in that: The dust collection mechanism (9) comprises a hollow dust collection plate (91) fixedly arranged on one side of the top of the conveying frame (2); a plurality of evenly distributed dust collection holes (92) are opened on the side of the hollow dust collection plate (91); a supporting plate (93) is fixedly arranged on the side wall of the conveying frame (2); a dust collection box (94) is fixedly arranged on the upper surface of the supporting plate (93); a dust collection fan (95) is fixedly arranged inside the dust collection box (94); an air suction pipe (96) is fixedly arranged on the other side of the dust collection box (94); and an air outlet pipe (97) is fixedly arranged on the other side of the dust collection box (94); one end of the air suction pipe (96) away from the dust collection box (94) is fixedly connected to the hollow dust collection plate (91); one end of the air outlet pipe (97) away from the dust collection box (94) is connected to the air blowing cleaning mechanism (10); and a filter screen (98) is detachably arranged inside the dust collection box (94).

7. A gangue conveying device for highway construction according to claim 6, characterized in that: The top of the dust collection box (94) is provided with a disassembly opening, and the interior of the disassembly opening is provided with a sealing cover (99); the sealing cover (99) is fixedly connected to the dust collection box (94) by bolts; a fixing frame (910) is provided inside the dust collection box (94), and the top of the fixing frame (910) is fixedly connected to the bottom of the sealing cover (99); the filter screen (98) is fixedly arranged inside the fixing frame (910); a drive shaft (911) is fixedly arranged at one end of the fan blade rotating shaft (84) of the dust collection fan (95); and a cleaning brush (912) is fixedly arranged at the end of the drive shaft (911) and is arranged to contact one side of the filter screen (98).

8. A gangue conveying device for highway construction according to claim 6, characterized in that: The air blowing cleaning mechanism (10) comprises a connecting plate (101) fixedly arranged at the bottom of the conveying frame (2); a longitudinally arranged air blowing cleaning pipe (102) is fixedly arranged on one side of the connecting plate (101); a plurality of evenly distributed air blowing cleaning heads (103) are fixedly arranged on the upper side of the air blowing cleaning pipe (102); and one end of the air outlet pipe (97) away from the dust collection box (94) is fixedly connected to one end of the air blowing cleaning pipe (102).

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