Movable scraper conveyor

Abstract

The invention belongs to the technical field of scraper conveying equipment, and particularly relates to a movable scraper conveyor which comprises a scraper chain assembly and a conveyor body, a support is fixedly connected to the bottom end of the conveyor body, universal wheels are installed at the four bottom ends of the support, and a PLC is fixedly connected to the outer wall of the support. The working stability of the movable type scraper conveyor can be effectively improved, the situation of material conveying errors is avoided, then the material conveying reliability is improved, the conveyor has the material humidity detection function, wet materials on the scraper chain assembly can be accurately recognized and cleaned, the material conveying speed is increased, and the conveying efficiency is improved. In addition, in the dry material conveying process, the conveyor further has the functions of collecting dust materials and removing static electricity, the conveying efficiency and the safety coefficient are powerfully improved, and the conveyor can convey materials more efficiently and reliably.

Description

Technical Field

[0001] The invention belongs to the technical field of scraper conveying equipment, and in particular relates to a mobile scraper conveyor. Background Art

[0002] Scraper conveyor is a commonly used conveying machinery, which is mainly composed of a head, a tail, a middle trough, a scraper chain and other components. When in operation, it relies on the circulation of the scraper chain to steadily move the materials placed in the middle trough, such as coal, ore, sand and gravel, along a predetermined route. With its compact structural design, it has strong adaptability and can operate efficiently in complex and narrow places such as underground coal mines and mine tunnels. It has a large and continuous conveying capacity. Because its conveying line can be flexibly arranged in a straight line or a broken line, it is widely used in various bulk material conveying scenarios. For example, the authorization announcement number is CN103318604B, which discloses a patent for a scraper conveyor.

[0003] At present, scraper conveyors have exposed a series of problems in the material transportation link that need to be solved; First, when handling materials with high humidity, once the humidity is too high, the materials will show extremely strong adhesion characteristics and adhere tightly to the surface of the scraper chain. The direct consequence is that the material conveying rhythm is slowed down and the conveying efficiency is reduced. At the same time, the additional adhered materials increase the load of the scraper chain, causing its structural weight to rise, and the running resistance also increases sharply. Under the continuous high-pressure resistance, the scraper chain wears more severely, and the sprocket teeth are also not immune. Frequent high-intensity friction causes the teeth to wear rapidly. This continuous excessive resistance may cause the meshing between the scraper chain and the sprocket to become loose, and even cause the scraper chain to derail, affecting the service life and reliability of the scraper conveyor, as well as the efficiency of the scraper conveyor in conveying materials; Second, when conveying dry materials with very low humidity, since the scraper chain and the powder are different substances, when the two rub against each other, electrons are easily transferred. In addition, the air conductivity is weak in a dry environment, and static electricity accumulates in large quantities. If the dust content in the material is high, then at the moment of static electricity release, it is very easy to trigger a high risk of dust explosion, with disastrous consequences. In addition, static electricity will cause the powder to be adsorbed on the equipment, further affecting the physical conveying efficiency and safety. Third, the existing mobile scraper conveyors mostly use rollers for movement during use. However, during operation, due to the vibration of the conveyed materials and the small contact area of ​​the rollers, slippage is likely to occur, affecting the working stability of the mobile scraper conveyor and the reliability of the mobile scraper conveyor in conveying materials.

[0004] Therefore, we propose a mobile scraper conveyor to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a mobile scraper conveyor in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a mobile scraper conveyor, comprising a scraper chain assembly and a conveyor body, the bottom end of the conveyor body is fixedly connected to a bracket, four bottom ends of the bracket are all equipped with universal wheels, and the outer wall of the bracket is fixedly connected to a PLC controller; The upper surface of the conveyor body located at the feed hopper is fixedly connected with a material humidity detection mechanism; The outer wall of the feed hopper of the conveyor body is fixedly sleeved with a hollow annular tube, the top outer wall of the hollow annular tube is fixedly connected with a plurality of arc-shaped tubes, the air inlet end of the arc-shaped tube passes through the inner wall of the feed hopper of the conveyor body, and the upper surface of the bracket is fixedly connected with an air purification mechanism for dust prevention of the feed hopper of the conveyor body; The top outer wall of the conveyor body is fixedly connected with a purge mechanism for cleaning materials adhering to the surface of the scraper chain assembly; The outer walls on both sides of the bracket are fixedly connected with stabilizing mechanisms, and the two stabilizing mechanisms are symmetrically distributed.

[0007] In the above-mentioned mobile scraper conveyor, the material humidity detection mechanism includes a micro air pump and an L-shaped duct fixedly connected to the upper surface of the conveyor body, the air inlet end of the micro air pump is fixedly connected to the tube wall of the L-shaped duct, the tube wall of the L-shaped duct is provided with a mounting hole, and the hole wall of the mounting hole is sealed and fixedly connected with a humidity sensor, the outer wall of the feed hopper of the conveyor body is provided with a mounting through hole, and the hole wall of the mounting through hole is fixedly connected with a first sealed bearing, the inner wall of the inner ring of the first sealed bearing is fixedly connected with a protective tube, the outer wall of the protective tube is provided with a plurality of rectangular air inlet holes, the side end of the protective tube is fixedly connected with a plurality of transmission blades, the outer wall of the protective tube is provided with a circular hole, and the hole wall of the circular hole is fixedly connected with a second sealed bearing, and the inner wall of the second sealed bearing is fixedly connected to the outer wall of the L-shaped duct.

[0008] In the above-mentioned mobile scraper conveyor, two extension rods are fixedly connected to the outer surface of the air inlet end of the L-shaped conduit, and a wire brush for cleaning the rectangular air inlet hole is fixedly connected to the rod wall of the extension rod.

[0009] In the above-mentioned mobile scraper conveyor, the air purification mechanism includes a processing box fixedly connected to the outer wall of the bracket, the inner wall of the processing box is fixedly connected to a partition, the upper surface of the partition is fixedly connected to an air pump, the air outlet end of the air pump passes through the lower surface of the partition, the air inlet end of the air pump is fixedly connected to a first air pipe, the air inlet end of the first air pipe passes through the bracket and is fixedly connected to the pipe wall of the hollow annular tube, the outer wall of the processing box is provided with a rectangular through hole, and the rectangular through hole is connected to a filtering mechanism, the inner wall of the bottom end of the processing box is fixedly connected to an ion generator, the outer wall of the bottom end of the processing box is fixedly connected to a first reversing three-way solenoid valve, and the two air outlet ends of the first reversing three-way solenoid valve are respectively fixedly connected to the second air pipe and the third air pipe.

[0010] In the above-mentioned mobile scraper conveyor, the filtering mechanism includes a sealing plate, the outer wall of the sealing plate is fixedly connected to the outer wall of the processing box by bolts, the inner wall of the sealing plate is fixedly connected with a sealing ring, the inner side wall of the sealing plate is fixedly connected with a filter mesh plate and an L-shaped composite filter plate, the side opposite to the filter mesh plate and the L-shaped composite filter plate is jointly filled with a sponge filter block, the side of the filter mesh plate opposite to the L-shaped composite filter plate is connected with a limit strip, the side wall of the limit strip is fixedly connected to the inner wall of the processing box, and the side walls of the filter mesh plate, the L-shaped composite filter plate and the sponge filter block are all in contact with the inner wall of the processing box.

[0011] In the above-mentioned mobile scraper conveyor, the purge mechanism includes a metal air guide hood fixedly connected to the upper surface of the conveyor body, the bottom outer wall of the metal air guide hood is fixedly connected to the air outlet end of the second air pipe, the top outer wall of the metal air guide hood is fixedly connected to two connecting pipes, the air outlet ends of the two connecting pipes are commonly fixedly connected to a U-shaped tube, the outer walls at both ends of the U-shaped tube are fixedly connected to the outer wall of the conveyor body, the outer wall of the U-shaped tube is fixedly connected to a plurality of second reversing three-way solenoid valves, and the bottom air outlet ends of the plurality of second reversing three-way solenoid valves all pass through the top inner wall of the conveyor body and are located directly above the top of the scraper chain assembly.

[0012] In the above-mentioned mobile scraper conveyor, the stabilizing mechanism includes a sleeve fixedly connected to the outer wall of the bracket, a circular hole is opened at the bottom end of the sleeve, and a T-shaped rod is fixedly connected to the hole wall of the circular hole, a sealing ring is fixedly sleeved on the rod wall of the T-shaped rod, the outer wall of the sealing ring is sealingly and movably connected to the inner wall of the sleeve, a reset spring is sleeved on the rod wall of the T-shaped rod, a threaded hole is opened at the bottom end of the T-shaped rod, and an adjusting screw is connected to the hole wall of the threaded hole, the bottom end of the adjusting screw is connected to a universal ball, the bottom end of the universal ball is fixedly connected to a pad, and the bottom lower surface of the pad is fixedly connected to an anti-slip pad.

[0013] In the above-mentioned mobile scraper conveyor, the air outlet end of the third air pipe is fixedly connected to the top outer wall of one of the sleeves, the outer walls of the two sleeves are commonly fixedly connected with a connecting pipe, the air inlet end of the connecting pipe is fixedly connected to the middle outer wall of one of the sleeves, and the air outlet end of the connecting pipe is fixedly connected to the top outer wall of the other sleeve.

[0014] Compared with the existing technology, the advantages of a mobile scraper conveyor are: 1. Through the set vacuum pump, the first reversing three-way solenoid valve, the PLC controller and the stabilizing mechanism, when it is necessary to transport materials through the mobile scraper conveyor, first move the scraper conveyor to the material conveying position through the universal wheel, and then the PLC controller not only controls the vacuum pump to start, but also controls the first reversing three-way solenoid valve to be energized for 30 seconds. The vacuum pump cooperates with the processing box and the first reversing three-way solenoid valve to inject air into the stabilizing mechanism, and the T-shaped rod is extended outward under the action of air pressure. After the 30-second countdown is completed, the PLC controller controls the first reversing three-way solenoid valve to cut off the power, and ensures that the two T-shaped rods of the two stabilizing mechanisms continue to stably maintain the extended state, finally making the pads and anti-skid pads at the bottom of the two stabilizing mechanisms stably contact with the ground, expanding the contact area between the scraper conveyor and the ground, and the diagonal braces on both sides can effectively improve the stability of the scraper conveyor during working vibration. This mechanism can effectively improve the stability of the mobile scraper conveyor during work, thereby improving the reliability of the use of the mobile scraper conveyor.

[0015] 2. Through the material humidity detection mechanism and purge mechanism, when the material to be transported passes through the feed hopper of the conveyor body, the falling material will be detected by the material humidity detection mechanism, and the detection result will be fed back to the PLC controller. If the material humidity detected by the humidity sensor exceeds the humidity threshold preset by the PLC controller, and as the humidity value detected by the humidity sensor gradually increases, the PLC controller controls the suction volume of the vacuum pump to gradually increase. After the air sucked by the vacuum pump enters the second air pipe, it will be introduced into the purge mechanism, and the scraper chain assembly that has discharged the material will be purged with high-speed airflow. The greater the material humidity, the higher the second reversing three-way solenoid valve. The faster the jet air flow speed, the higher the air flow pressure, and can ensure that the wet material adhering to the surface of the scraper chain assembly is reliably removed, thereby avoiding the additional adhering material from increasing the load of the scraper chain assembly, which can not only increase the material conveying speed, but also reduce the wear of the scraper chain assembly, and also reduce the probability of the scraper chain assembly being derailed. This mechanism enables the mobile scraper conveyor to have the function of material humidity detection, and can clean the wet material adhering to the surface of the scraper chain assembly, which can not only improve the material conveying efficiency, but also reduce the wear of the scraper chain assembly, and improve the service life and reliability of the mobile scraper conveyor.

[0016] 3. Through the ion generator, the first reversing three-way solenoid valve and the filtering mechanism, if the material humidity detected by the humidity sensor is lower than the humidity threshold preset by the PLC controller, the PLC controller controls the second reversing three-way solenoid valve and the ion generator to be energized, and at the same time, the filtering mechanism can intercept and reuse the dust material in the air transported by the vacuum pump. In addition, after the ion generator is energized, a high-voltage corona will be generated to ionize the air transported to the bottom of the processing box and generate an ion airflow. After the ion airflow enters the purge mechanism, the static electricity of the mobile scraper conveyor can be eliminated. In this way, the risk of powder explosion caused by electrostatic discharge can be eliminated to ensure production safety, and the powder material can be prevented from being attached to the inner wall of the conveyor body by electrostatic adsorption to ensure smooth material transportation. After the second reversing three-way solenoid valve is energized, the exhaust direction of the purge mechanism can be changed to avoid the airflow at the outlet of the conveyor body causing a large amount of powder material in the dry material to be lifted up. This mechanism enables the mobile scraper conveyor to not only have the function of collecting dust materials in the process of dry material transportation, but also has the function of removing static electricity, which can improve the efficiency and safety and reliability of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a mobile scraper conveyor provided by the present invention; Figure 2 It is a structural schematic diagram of a purge mechanism in a mobile scraper conveyor provided by the present invention; Figure 3 It is a structural schematic diagram of a material humidity detection mechanism in a mobile scraper conveyor provided by the present invention; Figure 4 It is a structural schematic diagram of an air purification mechanism in a mobile scraper conveyor provided by the present invention; Figure 5 It is a structural schematic diagram of a stabilizing mechanism in a mobile scraper conveyor provided by the present invention; Figure 6 It is a structural schematic diagram of a filtering mechanism in a mobile scraper conveyor provided by the present invention; Figure 7 It is a structural schematic diagram of a scraper chain assembly in a mobile scraper conveyor provided by the present invention; Figure 8 It is a three-dimensional structural schematic diagram of a protective cylinder in a mobile scraper conveyor provided by the present invention.

[0018] In the figure: 1 scraper chain assembly, 2 conveyor body, 3 bracket, 4 universal wheel, 5 material humidity detection mechanism, 51 micro air pump, 52 L-shaped conduit, 53 humidity sensor, 54 first sealed bearing, 55 protective cylinder, 56 rectangular air inlet hole, 57 transmission blade, 58 second sealed bearing, 6 air purification mechanism, 61 treatment box, 62 partition, 63 vacuum pump, 64 first air pipe, 65 ion generator, 66 first reversing three-way solenoid valve, 67 second air pipe, 68 third air pipe, 7 purge mechanism, 71 metal Air guide hood, 72 connecting pipe, 73 U-shaped pipe, 74 second reversing three-way solenoid valve, 8 stabilizing mechanism, 81 sleeve, 82 T-shaped rod, 83 sealing ring, 84 return spring, 85 adjusting screw, 86 universal ball, 87 pad, 88 anti-slip pad, 9 filtering mechanism, 91 sealing plate, 92 sealing ring, 93 filter screen plate, 94 L-shaped composite filter plate, 95 sponge filter block, 96 limit strip, 10 PLC controller, 11 hollow ring pipe, 12 arc pipe, 13 connecting pipe, 14 extension rod, 15 wire brush. Implementation

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 8As shown, a mobile scraper conveyor includes a scraper chain assembly 1 and a conveyor body 2, the bottom end of the conveyor body 2 is fixedly connected with a bracket 3, the four bottom ends of the bracket 3 are all installed with universal wheels 4, the outer wall of the bracket 3 is fixedly connected with a PLC controller 10, the upper surface of the conveyor body 2 located at the feed hopper is fixedly connected with a material humidity detection mechanism 5, the material humidity detection mechanism 5 includes a micro air pump 51 and an L-shaped conduit 52 fixedly connected to the upper surface of the conveyor body 2, the air inlet end of the micro air pump 51 is fixedly connected to the tube wall of the L-shaped conduit 52, the tube wall of the L-shaped conduit 52 is provided with a mounting hole, and the hole wall of the mounting hole is sealed and fixedly connected with a humidity sensor 53, the outer wall of the feed hopper of the conveyor body 2 is provided with a mounting through hole, and the hole wall of the mounting through hole is fixedly connected with a first sealing A sealed bearing 54, the inner wall of the inner ring of the first sealed bearing 54 is fixedly connected with a protective cylinder 55, the outer wall of the protective cylinder 55 is provided with a plurality of rectangular air inlet holes 56, two extension rods 14 are fixedly connected to the outer surface of the air inlet end of the L-shaped conduit 52, the rod wall of the extension rod 14 is fixedly connected with a wire brush 15 for cleaning the rectangular air inlet holes 56, the wire brush 15 on the extension rod 14 can clean the rectangular air inlet holes 56 to prevent the rectangular air inlet holes 56 from being blocked by materials, a plurality of transmission blades 57 are fixedly connected to the side end of the protective cylinder 55, a circular hole is provided on the outer wall of the protective cylinder 55, and a second sealed bearing 58 is fixedly connected to the hole wall of the circular hole, the inner wall of the second sealed bearing 58 is fixedly connected to the outer wall of the L-shaped conduit 52, and this mechanism enables the mobile scraper conveyor to have the function of detecting material humidity.

[0021] The outer wall of the feed hopper of the conveyor body 2 is fixedly sleeved with a hollow annular tube 11, and the top outer wall of the hollow annular tube 11 is fixedly connected with a plurality of arc tubes 12, and the air inlet end of the arc tube 12 passes through the inner wall of the feed hopper of the conveyor body 2. The upper surface of the bracket 3 is fixedly connected with an air purification mechanism 6 for dust prevention of the feed hopper of the conveyor body 2. The air purification mechanism 6 includes a treatment box 61 fixedly connected to the outer wall of the bracket 3, and the inner wall of the treatment box 61 is fixedly connected with a partition 62, and the upper surface of the partition 62 is fixedly connected. The air pump 63 is fixedly connected, the air outlet end of the air pump 63 passes through the lower surface of the partition 62, the air inlet end of the air pump 63 is fixedly connected with the first air pipe 64, the air inlet end of the first air pipe 64 passes through the bracket 3 and is fixedly connected with the pipe wall of the hollow annular tube 11, the outer wall of the processing box 61 is provided with a rectangular through hole, and the rectangular through hole is connected with a filter mechanism 9, the filter mechanism 9 includes a sealing plate 91, the outer wall of the sealing plate 91 is fixedly connected to the outer wall of the processing box 61 by bolts, and the sealing plate 91 The inner wall of the sealing plate 91 is fixedly connected with a sealing ring 92, the inner side wall of the sealing plate 91 is fixedly connected with a filter screen plate 93 and an L-shaped composite filter plate 94, the side of the filter screen plate 93 opposite to the L-shaped composite filter plate 94 is commonly filled with a sponge filter block 95, the side of the filter screen plate 93 opposite to the L-shaped composite filter plate 94 is connected with a limiting strip 96, the side wall of the limiting strip 96 is fixedly connected with the inner wall of the processing box 61, the side walls of the filter screen plate 93, the L-shaped composite filter plate 94 and the sponge filter block 95 are all in contact with the inner wall of the processing box 61, the bottom inner wall of the processing box 61 is fixedly connected with an ion generator 65, the bottom outer wall of the processing box 61 is fixedly connected with a first reversing three-way solenoid valve 66, and the two air outlet ends of the first reversing three-way solenoid valve 66 are respectively fixedly connected with a second air pipe 67 and a third air pipe 68, this mechanism enables the mobile scraper conveyor to have the function of collecting dust materials during the dry material transportation process, which can not only avoid environmental pollution, but also avoid waste of materials.

[0022] The top outer wall of the conveyor body 2 is fixedly connected with a purge mechanism 7 for cleaning materials adhering to the surface of the scraper chain assembly 1. The purge mechanism 7 includes a metal air guide hood 71 fixedly connected to the upper surface of the conveyor body 2. The bottom outer wall of the metal air guide hood 71 is fixedly connected to the air outlet end of the second air pipe 67. The top outer wall of the metal air guide hood 71 is fixedly connected with two connecting pipes 72. The air outlet ends of the two connecting pipes 72 are commonly fixedly connected with a U-shaped tube 73. The outer walls of both ends of the U-shaped tube 73 are fixedly connected to the outer wall of the conveyor body 2. The outer wall of the U-shaped tube 73 is fixedly connected with multiple second reversing three-way solenoid valves 74. The bottom air outlet ends of the multiple second reversing three-way solenoid valves 74 all pass through the top inner wall of the conveyor body 2 and are located directly above the top of the scraper chain assembly 1. This mechanism can clean wet materials adhering to the surface of the scraper chain assembly 1, which can not only improve the efficiency of material transportation, but also reduce the wear of the scraper chain assembly 1, and improve the service life and reliability of the mobile scraper conveyor.

[0023] The outer walls on both sides of the bracket 3 are fixedly connected with a stabilizing mechanism 8, and the two stabilizing mechanisms 8 are symmetrically distributed. The stabilizing mechanism 8 includes a sleeve 81 fixedly connected to the outer wall of the bracket 3, a circular hole is provided at the bottom end of the sleeve 81, and a T-shaped rod 82 is fixedly connected to the hole wall of the circular hole, a sealing ring 83 is fixedly sleeved on the rod wall of the T-shaped rod 82, and the outer wall of the sealing ring 83 is sealingly and movably connected to the inner wall of the sleeve 81, a reset spring 84 is sleeved on the rod wall of the T-shaped rod 82, a threaded hole is provided at the bottom end of the T-shaped rod 82, and an adjusting screw 85 is connected to the hole wall of the threaded hole, a universal ball 86 is connected to the bottom end of the adjusting screw 85, and a pad is fixedly connected to the bottom end of the universal ball 86 Plate 87, the lower surface of the bottom end of the pad 87 is fixedly connected with an anti-slip pad 88, the air outlet end of the third air pipe 68 is fixedly connected to the top outer wall of one of the sleeves 81, the outer walls of the two sleeves 81 are commonly fixedly connected with a connecting pipe 13, the air inlet end of the connecting pipe 13 is fixedly connected to the middle outer wall of one of the sleeves 81, the air outlet end of the connecting pipe 13 is fixedly connected to the top outer wall of the other sleeve 81, the two connecting pipes 13 ensure that the two stabilizing mechanisms 8 can simultaneously provide auxiliary support on the sides of the mobile scraper conveyor, which can effectively improve the stability of the mobile scraper conveyor during operation, thereby improving the reliability of the use of the mobile scraper conveyor.

[0024] The micro air pump 51, the vacuum pump 63, the second reversing three-way solenoid valve 74 and the first reversing three-way solenoid valve 66 are all electrically connected to the output end of the PLC controller 10 through wires, and the humidity sensor 53 is electrically connected to the input end of the PLC controller 10 through wires. The above-mentioned power-on devices and electrical connections are existing technologies and will not be repeated here.

[0025] The operating principle of the present invention is now described as follows: when it is necessary to transport materials through the mobile scraper conveyor, first move the scraper conveyor to the material conveying position through the universal wheel 4, then rotate the adjusting screw 85 according to the terrain to adjust the position of the pad 87 and the anti-skid pad 88, so that the pad 87 and the anti-skid pad 88 can be stably in contact with the ground after the T-shaped rod 82 is extended, and then the PLC controller 10 not only controls the start of the vacuum pump 63, but also controls the first reversing three-way solenoid valve 66 to be energized for 30 seconds. After the vacuum pump 63 is energized, the air at the feed hopper of the conveyor body 2 is sucked through the first air pipe 64, the hollow annular pipe 11 and the arc pipe 12, and then the air is transported to the filter mechanism 9 by the vacuum pump 63. The air filtered by the filter mechanism 9 enters the third air pipe 68 through the first reversing three-way solenoid valve 66. After the air in the third air pipe 68 is injected into the sleeve 81, the air pushes the T-shaped rod 82 outward with the cooperation of the sealing ring 83, and causes the sealing ring 83 to move to the connecting pipe 1 3, and then the air in the sleeve 81 enters the sleeve 81 of the other stabilizing mechanism 8 through the connecting pipe 13, and similarly, the T-shaped rod 82 in the other sleeve 81 is extended outward by the air pressure. At the same time, the 30-second countdown is completed, and the PLC controller 10 controls the first reversing three-way solenoid valve 66 to cut off the power, and ensures that the two T-shaped rods 82 of the two stabilizing mechanisms 8 continue to stably maintain the extended state. At the same time, the air in the processing box 61 enters the second air pipe 67 through the unpowered first reversing three-way solenoid valve 66, and finally the pads 87 and anti-skid pads 88 at the bottom of the two stabilizing mechanisms 8 are stably in contact with the ground, expanding the contact area between the scraper conveyor and the ground, and the diagonal braces on both sides can effectively improve the stability of the scraper conveyor during working vibration, and avoid the offset of the material inlet and outlet positions. The mechanism can effectively improve the stability of the mobile scraper conveyor during working, avoid material transportation errors, and thus improve the reliability of the mobile scraper conveyor. When the material to be transported passes through the feed hopper of the conveyor body 2, the falling material will impact the transmission blades 57 of the protective tube 55. The transmission blades 57 are driven by the kinetic energy of the falling material to drive the protective tube 55 to rotate on the first sealed bearing 54. The rectangular air inlet hole 56 at the side end of the protective tube 55 is located inside the falling material. At this time, the PLC controller 10 also controls the micro air pump 51 to work. The micro air pump 51 sucks the air inside the material through the L-shaped conduit 52, the protective tube 55 and the rectangular air inlet hole 56. The higher the humidity of the material, the higher the moisture content in the air inside the material. Conversely, the lower the humidity of the material, the lower the moisture content of the material. The lower the moisture content in the internal air, the more the humidity will be detected by the humidity sensor 53 after the air inside the material flows into the L-shaped conduit 52, and the humidity sensor 53 will send the humidity to the PLC controller 10 in the form of an electrical signal. If the material humidity detected by the humidity sensor 53 exceeds the humidity threshold preset by the PLC controller 10, and as the humidity value detected by the humidity sensor 53 gradually increases, the PLC controller 10 controls the air pump 63 to gradually increase the air volume. After the air sucked by the air pump 63 enters the second air pipe 67, it will be introduced into the metal air guide cover 71, and finally through the connecting pipe 72, the U-shaped The air outlet ends at the bottom of the pipe 73 and multiple second reversing three-way solenoid valves 74 are injected into the top of the conveyor body 2, and the scraper chain assembly 1 that has discharged the material is purged with a high-speed airflow. The high-speed airflow can purge the moist material adhering to the surface of the scraper chain assembly 1, and the greater the moisture content of the material, the faster the airflow speed sprayed by the second reversing three-way solenoid valve 74, the higher the airflow pressure, and it can ensure that the moist material adhering to the surface of the scraper chain assembly 1 is reliably removed, thereby avoiding the additional adhering material from increasing the load of the scraper chain assembly 1 and avoiding the situation where the running resistance of the scraper chain assembly 1 also increases sharply. This can not only Increasing the material conveying speed can also reduce the wear of the scraper chain assembly 1, and also reduce the wear between the scraper chain assembly 1 and the sprocket teeth in the conveyor body 2, ensuring the stable meshing between the scraper chain assembly 1 and the sprocket teeth during feeding, and can reduce the probability of the scraper chain assembly 1 being decoupled. This mechanism enables the mobile scraper conveyor to have the function of detecting material humidity, and can clean up the wet material adhering to the surface of the scraper chain assembly 1, which can not only improve the material conveying efficiency, but also reduce the wear of the scraper chain assembly 1, and improve the service life and reliability of the mobile scraper conveyor; If the material humidity detected by the humidity sensor 53 is lower than the humidity threshold preset by the PLC controller 10, the PLC controller 10 controls the second reversing three-way solenoid valve 74 and the ion generator 65 to be energized, and at the same time, the vacuum pump 63 cooperates with the first air pipe 64, the hollow ring pipe 11 and the arc tube 12 to suck the powder material raised at the feed hopper of the conveyor body 2 to prevent the powder material from scattering and polluting the environment. Then the powder material is transported to the filter mechanism 9 with the air, and will be filtered and processed multiple times by the filter screen plate 93, the sponge filter block 95 and the L-shaped composite filter plate 94 in the filter mechanism 9. The powder material is intercepted by the filter mechanism 9 and then collected and utilized, avoiding In order to avoid wasting materials, clean air is transported to the bottom of the processing box 61. At the same time, the second reversing three-way solenoid valve 74 can change the exhaust direction of the purge mechanism 7 after being energized, so that the air inside the purge mechanism 7 is discharged from the conveyor body 2, avoiding the air flow at the outlet of the conveyor body 2 causing a large amount of powder material in the dry material to be lifted up, which not only causes environmental pollution but also causes waste of materials. After being energized, the ion generator 65 will generate high-voltage corona to ionize the air transported to the bottom of the processing box 61 and generate a large number of positive and negative ions. These ions form an ion airflow as the air flows at the bottom of the processing box 61. In addition, When the dry material is conveyed by the mobile scraper conveyor, the dry material frequently rubs against the scraper chain assembly 1, which will cause static electricity to accumulate on the metal surface of the conveyor body 2. The ion airflow generated by the ion generator 65 is injected into the metal air guide cover 71 through the first reversing three-way solenoid valve 66 and the second air pipe 67, and can perform anti-static treatment on the metal surface of the conveyor body 2. Specifically, the ion airflow is rich in positive and negative ions, among which the ions with opposite electrical properties to the static charge on the metal surface of the conveyor body 2 will be attracted to the metal surface of the conveyor body 2 under the action of the electric field, and the two will neutralize each other to achieve static electricity elimination. In this way, It can not only eliminate the risk of powder explosion caused by electrostatic discharge and ensure production safety, but also prevent powder materials from being adsorbed by electrostatics and attached to the inner wall of the conveyor body 2, thereby ensuring smooth material transportation and maintaining efficient operation of the mobile scraper conveyor. Finally, the ion airflow of the metal air guide cover 71 is discharged through the second reversing three-way solenoid valve 74 that is powered on and opened. This mechanism enables the mobile scraper conveyor to not only collect dust materials during the dry material transportation process, but also has the function of removing static electricity, which can not only avoid dust pollution of the environment, but also avoid waste of materials, and can improve the efficiency and safety and reliability of material transportation.

[0026] 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 mobile scraper conveyor, comprising a scraper chain assembly (1) and a conveyor body (2), characterized in that: The bottom end of the conveyor body (2) is fixedly connected to a bracket (3), and universal wheels (4) are installed at the four bottom ends of the bracket (3). The outer wall of the bracket (3) is fixedly connected to a PLC controller (10); the upper surface of the conveyor body (2) located at the feed hopper is fixedly connected to a material humidity detection mechanism (5); the outer wall of the feed hopper of the conveyor body (2) is fixedly sleeved with a hollow ring tube (11), and the top outer wall of the hollow ring tube (11) is fixedly connected to a plurality of arc tubes (12), and the air inlet end of the arc tube (12) passes through the inner wall of the feed hopper of the conveyor body (2); the upper surface of the bracket (3) is fixedly connected to an air purification mechanism (6) for dust prevention of the feed hopper of the conveyor body (2); the top outer wall of the conveyor body (2) is fixedly connected to a purge mechanism (7) for cleaning materials adhering to the surface of the scraper chain assembly (1); the outer walls on both sides of the bracket (3) are fixedly connected to stabilization mechanisms (8), and the two stabilization mechanisms (8) are symmetrically distributed.

2. A mobile scraper conveyor according to claim 1, characterized in that: The material humidity detection mechanism (5) comprises a micro air pump (51) and an L-shaped conduit (52) fixedly connected to the upper surface of the conveyor body (2); an air inlet end of the micro air pump (51) is fixedly connected to the tube wall of the L-shaped conduit (52); a mounting hole is provided on the tube wall of the L-shaped conduit (52); a humidity sensor (53) is sealed and fixedly connected to the hole wall of the mounting hole; a mounting through hole is provided on the outer wall of the feed hopper of the conveyor body (2); a first sealed bearing (54) is fixedly connected to the hole wall of the mounting through hole; a protective tube (55) is fixedly connected to the inner wall of the inner ring of the first sealed bearing (54); a plurality of rectangular air inlet holes (56) are provided on the outer wall of the protective tube (55); a plurality of transmission blades (57) are fixedly connected to the side end of the protective tube (55); a circular hole is provided on the outer wall of the protective tube (55); a second sealed bearing (58) is fixedly connected to the hole wall of the circular hole; and the inner wall of the second sealed bearing (58) is fixedly connected to the outer wall of the L-shaped conduit (52).

3. A mobile scraper conveyor according to claim 2, characterized in that: Two extension rods (14) are fixedly connected to the outer surface of the air inlet end of the L-shaped conduit (52), and a steel wire brush (15) for cleaning the rectangular air inlet hole (56) is fixedly connected to the rod wall of the extension rod (14).

4. A mobile scraper conveyor according to claim 2, characterized in that: The air purification mechanism (6) comprises a processing box (61) fixedly connected to the outer wall of the bracket (3); a partition (62) is fixedly connected to the inner wall of the processing box (61); an air pump (63) is fixedly connected to the upper surface of the partition (62); an air outlet end of the air pump (63) passes through the lower surface of the partition (62); an air inlet end of the air pump (63) is fixedly connected to a first air pipe (64); an air inlet end of the first air pipe (64) passes through the bracket (3) and is fixedly connected to the wall of the hollow annular tube (11); a rectangular through hole is formed on the outer wall of the processing box (61); a filtering mechanism (9) is connected to the rectangular through hole; an ion generator (65) is fixedly connected to the inner wall of the bottom end of the processing box (61); a first reversing three-way solenoid valve (66) is fixedly connected to the outer wall of the bottom end of the processing box (61); two air outlet ends of the first reversing three-way solenoid valve (66) are fixedly connected to a second air pipe (67) and a third air pipe (68), respectively.

5. A mobile scraper conveyor according to claim 4, characterized in that: The filtering mechanism (9) comprises a sealing plate (91), the outer wall of the sealing plate (91) being fixedly connected to the outer wall of the processing box (61) by means of bolts, the inner wall of the sealing plate (91) being fixedly connected to a sealing ring (92), the inner side wall of the sealing plate (91) being fixedly connected to a filter screen plate (93) and an L-shaped composite filter plate (94), the side of the filter screen plate (93) opposite to the L-shaped composite filter plate (94) being jointly filled with a sponge filter block (95), the side of the filter screen plate (93) opposite to the L-shaped composite filter plate (94) being connected to a limiting strip (96), the side wall of the limiting strip (96) being fixedly connected to the inner wall of the processing box (61), and the side walls of the filter screen plate (93), the L-shaped composite filter plate (94) and the sponge filter block (95) being all in contact with the inner wall of the processing box (61).

6. The mobile scraper conveyor according to claim 1, characterized in that: The purge mechanism (7) comprises a metal air guide cover (71) fixedly connected to the upper surface of the conveyor body (2); the outer wall of the bottom end of the metal air guide cover (71) is fixedly connected to the air outlet end of the second air pipe (67); the outer wall of the top end of the metal air guide cover (71) is fixedly connected to two connecting pipes (72); the air outlet ends of the two connecting pipes (72) are fixedly connected to a U-shaped pipe (73); the outer walls of both ends of the U-shaped pipe (73) are fixedly connected to the outer wall of the conveyor body (2); the outer wall of the U-shaped pipe (73) is fixedly connected to a plurality of second reversing three-way solenoid valves (74); the bottom air outlet ends of the plurality of second reversing three-way solenoid valves (74) all pass through the inner wall of the top end of the conveyor body (2) and are located directly above the top end of the scraper chain assembly (1).

7. The mobile scraper conveyor according to claim 4, characterized in that: The stabilizing mechanism (8) comprises a sleeve (81) fixedly connected to the outer wall of the bracket (3); a circular hole is formed at the bottom end of the sleeve (81); a T-shaped rod (82) is fixedly connected to the hole wall of the circular hole; a sealing ring (83) is fixedly sleeved on the rod wall of the T-shaped rod (82); the outer wall of the sealing ring (83) is sealingly and movably connected to the inner wall of the sleeve (81); a return spring (84) is sleeved on the rod wall of the T-shaped rod (82); a threaded hole is formed at the bottom end of the T-shaped rod (82); an adjusting screw (85) is connected to the hole wall of the threaded hole; a universal ball (86) is connected to the bottom end of the adjusting screw (85); a pad (87) is fixedly connected to the bottom end of the universal ball (86); and a non-slip pad (88) is fixedly connected to the lower surface of the bottom end of the pad (87).

8. The mobile scraper conveyor according to claim 7, characterized in that: The air outlet end of the third air pipe (68) is fixedly connected to the top outer wall of one of the sleeves (81); the outer walls of the two sleeves (81) are commonly fixedly connected to a connecting pipe (13); the air inlet end of the connecting pipe (13) is fixedly connected to the middle outer wall of one of the sleeves (81); and the air outlet end of the connecting pipe (13) is fixedly connected to the top outer wall of the other sleeve (81).

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