Coal processing and conveying device of thermal power station

Abstract

The invention relates to the technical field of industrial manufacturing, and discloses a coal material processing and conveying device of a thermal power station, which comprises a crawler transport vehicle, a conveying frame and a spiral material taking machine, the conveying frame is fixedly connected above the crawler transport vehicle, the spiral material taking machine is fixedly connected to the side wall of a conveying assembly, and the conveying frame comprises the conveying assembly; the conveying assembly comprises an arched frame plate, a shaft rod and a protruding rod. The upper surface of the conveying frame is rotationally connected with a main transmission shaft in a driven mode. The multiple driven transmission shafts slide on the motor in a fluctuating mode, so that the conveying belt on the driven transmission shafts fluctuates in a wavy mode, large coal briquettes can be pushed forwards through wavy swing formed on the conveying belt, the conveying efficiency of the coal briquettes on the conveying belt is improved, and meanwhile the conveying belt is locally lifted, so that the conveying efficiency of the coal briquettes is improved. And coal briquettes on the conveying belt can be limited, the problem that the coal briquettes roll downwards due to shaking in the conveying process is solved, and the safety of the conveying belt in the conveying process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial manufacturing, and in particular to a coal material processing and conveying device for a thermal power station. Background Art

[0002] The coal handling and conveying device of the thermal power plant is an efficient and comprehensive system, which consists of multiple links such as coal unloading equipment, coal storage yard, conveying device, crushing and screening. The existing equipment combines the coal receiving device with the conveying device to make the transportation and handling of coal more efficient.

[0003] When the coal is collected by the reclaimer, it will collide with the spiral blades inside the reclaimer, generating a large amount of dust that pollutes the surrounding environment. In addition, if the coal does not leave the surface of the blades in time during the rotation of the spiral blades, it will be carried out to the outside of the reclaimer in the reverse direction, affecting the efficient coal collection work. At the same time, the reverse carrying of the coal will pose a safety threat to the surrounding workers.

[0004] Coal blocks need to be moved upward during transportation, so the conveyor frame has a certain slope. In the process of the coal blocks moving upward, the coal blocks will roll downward due to the shaking of the equipment during operation. When the coal blocks are large in size, the impact force of their downward rolling will cause damage to the transmission belt and the conveyor frame.

[0005] Therefore, a coal handling and conveying device for a thermal power station is proposed. Summary of the invention

[0006] The object of the present invention is to provide a coal handling and conveying device for a thermal power station to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coal material processing and conveying device for a thermal power plant, comprising a crawler transport vehicle, a conveying frame and a spiral reclaimer, wherein the conveying frame is fixedly connected to the top of the crawler transport vehicle, the spiral reclaimer is fixedly connected to the side wall of the conveying assembly, the conveying frame comprises a conveying assembly, the conveying assembly comprises an arched frame plate, an axle rod and a convex rod, the upper surface of the conveying frame is driven to rotate and is connected to a main transmission shaft, a side of the side wall of the conveying frame close to the spiral reclaimer is fixedly connected to an induction plate, an outer wall of the spiral reclaimer is slidably connected to a slide plate that mutually inductions with the induction plate, and the arched frame plate is connected to the conveying assembly. The arched frame plates are distributed in a linear array at the bottom of the conveying frame, both ends of the arched frame plates are fixedly connected to support rods, the support rods penetrate and are slidably connected to the inside of the conveying frame, the top of the support rods are rotatably connected to a transmission shaft, the upper surface of the arched frame plate and the lower surface of the conveying frame are symmetrically fixedly connected with a first spring, a driver is installed at the bottom of the conveying frame, the shaft rod is installed at the output end of the drive, the convex rods are threadedly and evenly fixedly connected to the outer wall of the shaft rod, the spacing between multiple convex rods is equal to the spacing between multiple arched frame plates, and the shaft rod is electrically connected to the induction plate.

[0008] Preferably, a motor is installed above the spiral feeder, and belts are meshed at both ends of the driving shaft of the motor. A feeding assembly is provided on the spiral feeder, and the feeding assembly includes a threaded feeding shaft rotatably connected to the inside of the spiral feeder, and both ends of the threaded feeding shaft are fixedly connected to a first gear, and the belt drive is connected between the motor output shaft and the first gear.

[0009] Preferably, the material picking assembly also includes a screw and a push plate, a vertical plate is fixedly connected to the middle part of the outer wall of the threaded material picking shaft, a loading bin is fixedly connected to the outer wall of the vertical plate, the screw is rotatably connected to the inside of the loading bin, one end of the screw located outside the loading bin is fixedly connected to the second gear, the push plate is slidably connected to the outer wall of the screw, the bottom of the inner cavity of the loading bin is set as an inclined surface, and the bottom of the inner cavity of the loading bin is provided with air guide grooves in a linear array, the outer wall of the vertical plate is symmetrically fixedly connected to a fixed plate, the inside of the fixed plate is rotatably connected to a gear rod, the gear rod is meshed with the second gear, both ends of the gear rod are fixedly connected to the third gear, and the inner wall of the spiral feeder is fixedly connected to an arc-shaped gear plate meshing with the third gear.

[0010] Preferably, the material picking assembly also includes a bracket fixedly connected to the outer wall of the threaded material picking shaft, the top of the bracket is rotatably connected to a fourth gear meshing with the gear rod, the middle section of the outer wall of the bracket is rotatably connected to a fan shaft, a first transmission belt is transmission-connected between the fan shaft and the fourth gear, the outer wall of the vertical plate is fixedly connected to an air intake pipe, a side of the air intake pipe close to the bracket is fixedly connected to a first protective shell, a side of the vertical plate away from the loading bin is fixedly connected to a second protective shell, the fan shaft is rotatably connected to the inside of the first protective shell, the two ends of the vertical plate are symmetrically rotatably connected to a driven turntable, a torsion spring is sleeved at the rotation connection between the driven turntable and the vertical plate, a second transmission belt is transmission-connected between the driven turntable and the second gear, and a second spring is fixedly connected between the third gear and the fixed plate.

[0011] Preferably, a spring is sleeved at the sliding connection between the slide plate and the spiral feeder, a magnetic plate is provided on the slide plate, a magnetic induction coil is provided on the induction plate, a controller connected to the magnetic induction coil is provided inside the conveying frame, and the controller is electrically connected to the driver of the shaft rod.

[0012] Preferably, the protruding rods are distributed on the outer wall of the shaft in a threaded shape, the protruding rods at both ends of the shaft form an angle of 180 degrees, the middle part of the arched frame plate is arched, and the outer wall of the protruding rods fits in the middle part of the lower surface of the arched frame plate.

[0013] Preferably, a penetrating air duct is opened on the vertical plate, and the air duct is connected between the inside of the air inlet pipe and the air guide groove of the loading bin, and a filter is arranged on the first protective shell.

[0014] Preferably, the outer wall of the threaded material taking shaft is symmetrically provided with threaded blades, and when the threaded material taking shaft rotates, the threaded blades push the material to move toward the middle of the threaded material taking shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the ups and downs sliding of multiple slave transmission shafts on the motor, the conveyor belt driven on the slave transmission shaft generates wave-like ups and downs, so that when facing larger coal blocks, the wave-like swing formed on the conveyor belt can be pushed forward, thereby improving the efficiency of coal blocks on the conveyor belt. At the same time, by partially raising the conveyor belt, the coal blocks on the conveyor belt can be limited, avoiding the problem of coal blocks rolling down due to shaking during transportation, thereby improving the safety of conveyor belt transportation;

[0017] 2. The screw rotates to make the push plate slide inside the loading bin, so that the coal blocks accumulated on the loading bin are discharged from the inside of the spiral reclaimer under the action of the push plate, thereby avoiding the problem that the coal blocks transported by the loading bin have not completely left the loading bin when they reach the discharging side during the repeated rotation of the loading bin, causing the loading bin to be carried out in the opposite direction to the feeding direction, thereby improving the transportation efficiency;

[0018] 3. During the rotation of the fan shaft inside the first protective shell, the air inside the first protective shell is discharged to the outside, thereby generating negative pressure in the inner cavity of the first protective shell and achieving the effect of outward air extraction through the air inlet pipe. While the coal blocks are pushed by the inclined surface and the push plate at the bottom of the inner cavity of the loading bin, the coal ash generated by the movement of the coal blocks will be sucked into the inside of the first protective shell by the fan shaft through the air inlet pipe, thereby reducing the problem of flying coal ash in the coal blocks when the threaded feeding shaft rotates, avoiding safety problems caused by surrounding staff inhaling coal ash, and at the same time reducing coal ash can prevent dust from floating, ensuring the cleanliness of the surrounding environment during coal processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial schematic diagram of the structure of the conveying assembly of the present invention;

[0021] Figure 3 It is a partial schematic diagram of the arched frame plate structure of the present invention;

[0022] Figure 4 It is a partial schematic diagram of the shaft rod structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall structure of the spiral reclaimer of the present invention;

[0024] Figure 6 It is a schematic cross-sectional view of the structure of the spiral reclaimer of the present invention;

[0025] Figure 7 This is an overall schematic diagram of the threaded material taking shaft structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the interior of the vertical plate structure of the present invention;

[0027] Fig. 9 This is a schematic diagram of the explosion of the loading bin structure of the present invention;

[0028] Fig.10 It is a schematic cross-sectional view of the fan shaft structure of the present invention.

[0029] In the figure:

[0030] 1. Crawler transport vehicle; 2. Conveyor frame; 3. Screw reclaimer; 4. Motor;

[0031] 21. conveying assembly; 211. main transmission shaft; 212. conveyor belt; 213. induction plate; 214. slide plate; 215. arched frame plate; 216. support rod; 217. slave transmission shaft; 218. first spring; 219. shaft rod; 2110. convex rod;

[0032] 31. Material picking assembly; 311. Threaded material picking shaft; 312. First gear; 313. Vertical plate; 314. Material loading bin; 315. Screw; 316. Second gear; 317. Fixed plate; 318. Tooth rod; 319. Third gear; 3110. Second spring; 3111. Push plate; 3112. Bracket; 3113. Fourth gear; 3114. Fan shaft; 3115. First protective shell; 3116. First transmission belt; 3117. Air intake pipe; 3118. Second protective shell; 3119. Arc tooth plate; 3120. Driven turntable; 3121. Second transmission belt. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiments of the present invention

[0035] See also Figures 1 to 4A coal material processing and conveying device for a thermal power station comprises a crawler transport vehicle 1, a conveying frame 2 and a spiral reclaimer 3, the conveying frame 2 is fixedly connected to the top of the crawler transport vehicle 1, the spiral reclaimer 3 is fixedly connected to the side wall of a conveying assembly 21, the conveying frame 2 comprises a conveying assembly 21, the conveying assembly 21 comprises an arched frame plate 215, an axle rod 219 and a convex rod 2110, the upper surface of the conveying frame 2 is driven to rotate and is connected to a main transmission shaft 211, a side of the side wall of the conveying frame 2 close to the spiral reclaimer 3 is fixedly connected to an induction plate 213, an outer wall of the spiral reclaimer 3 is slidably connected to a slide plate 214 that mutually inducts with the induction plate 213, the arched frame plate 215 is distributed in a linear array at the bottom of the conveying frame 2, both ends of the arched frame plate 215 are fixedly connected to support rods 216, the support rods 216 penetrate and are slidably connected to the inside of the conveying frame 2, the top of the support rods 216 is rotatably connected to a slave transmission shaft 217, the upper surface of the arched frame plate 215 and The first spring 218 is symmetrically fixedly connected between the lower surfaces of the conveying frame 2, a driver is installed at the bottom of the conveying frame 2, and the shaft rod 219 is installed at the output end of the drive. The convex rod 2110 is threadedly evenly fixedly connected to the outer wall of the shaft rod 219, and the spacing between multiple convex rods 2110 is equal to the spacing between multiple arched frame plates 215. The shaft rod 219 is electrically connected to the induction plate 213, and a spring is sleeved at the sliding connection between the slide plate 214 and the spiral material extractor 3. A magnetic plate is provided on the slide plate 214, and a magnetic induction coil is provided on the induction plate 213. A controller connected to the magnetic induction coil is provided inside the conveying frame 2, and the controller is electrically connected to the driver of the shaft rod 219. The convex rods 2110 are threadedly distributed on the outer wall of the shaft rod 219, and the convex rods 2110 at the head and tail ends of the shaft rod 219 are at an angle of 180 degrees. The middle part of the arched frame plate 215 is arched, and the outer wall of the convex rod 2110 fits the middle part of the lower surface of the arched frame plate 215.

[0036] When the embodiment of the present invention is actually used:

[0037] When the screw reclaimer 3's internal threaded reclaimer shaft 311 starts to rotate, the coal is lifted onto the conveyor belt 212 through the loading bin 314, and then the staff starts the conveyor frame 2, the main transmission shaft 211 starts to rotate and drives the conveyor belt 212 to start conveying the coal, so that the coal moves away from the screw reclaimer 3 under the conveyor belt 212. When the conveyed coal is large and heavy, there is a risk that the coal will roll down on the conveyor belt 212 during the process of conveying the coal.

[0038] When a heavier coal block falls from the spiral feeder 3 onto the conveyor belt 212, the downward pressure of the coal block will cause the conveyor belt 212 to collapse downward. After the conveyor belt 212 collapses, it will push the slide plate 214 downward, so that the slide plate 214 is close to the induction plate 213. At this time, after the magnetic induction coil inside the induction plate 213 senses the approach of the slide plate 214, it will control the driver of the shaft rod 219 to start rotating through the internal controller. The driver of the shaft rod 219 drives the shaft rod 219 to rotate together. During the rotation process, the shaft rod 219 will push each arch frame plate 215 upward in turn through the convex rods 2110 distributed in a threaded shape on its outer wall. After the arch frame plate 215 is pushed, the first spring 218 is squeezed by the arch frame plate 215 and the motor 4 and elastically contracts, and the arch frame plate 215 During the upward movement, the support rod 216 drives the transmission shaft 217 to move upward together. When the convex rod 2110 no longer squeezes the arched frame plate 215, the first spring 218 elastically stretches and pushes the arched frame plate 215 to move downward at the bottom of the motor 4. Through the ups and downs sliding of multiple transmission shafts 217 on the motor 4, the conveyor belt 212 transmitted on the transmission shaft 217 produces wave-like fluctuations, so that larger coal blocks can be pushed forward by the wave-like swing formed on the conveyor belt 212, thereby improving the efficiency of conveying coal blocks on the conveyor belt 212. At the same time, by partially raising the conveyor belt 212, the coal blocks on the conveyor belt 212 can be limited to avoid the problem of coal blocks rolling downward due to shaking during transportation, thereby improving the safety of the conveyor belt 212 during transportation.

[0039] See also Figures 5 to 10A motor 4 is installed above the spiral reclaimer 3, and belts are meshed at both ends of the driving shaft of the motor 4. A reclaiming assembly 31 is provided on the spiral reclaimer 3. The reclaiming assembly 31 includes a threaded reclaiming shaft 311 rotatably connected to the inside of the spiral reclaimer 3, and both ends of the threaded reclaiming shaft 311 are fixedly connected to a first gear 312. The belt transmission is connected between the output shaft of the motor 4 and the first gear 312. The reclaiming assembly 31 also includes a screw rod 315 and a push plate 3111. A vertical plate 313 is fixedly connected to the middle of the outer wall of the threaded reclaiming shaft 311, and a loading bin 314 is fixedly connected to the outer wall of the vertical plate 313. The screw rod 315 is rotatably connected to the inside of the loading bin 314, and the screw rod 315 One end located outside the loading bin 314 is fixedly connected to a second gear 316, a push plate 3111 is slidably connected to the outer wall of the screw rod 315, the bottom of the inner cavity of the loading bin 314 is set as an inclined surface, and the bottom of the inner cavity of the loading bin 314 is provided with air guide grooves in a linear array, the outer wall of the vertical plate 313 is symmetrically fixedly connected to a fixed plate 317, the inner part of the fixed plate 317 is rotatably connected to a gear rod 318, the gear rod 318 is meshed with the second gear 316, and both ends of the gear rod 318 are fixedly connected to a third gear 319, the inner wall of the spiral feeder 3 is fixedly connected to an arc-shaped gear plate 3119 meshed with the third gear 319, and the feeder assembly 31 also includes a fixed connection to The bracket 3112 on the outer wall of the threaded material taking shaft 311, the top of the bracket 3112 is rotatably connected to the fourth gear 3113 meshing with the gear rod 318, the middle section of the outer wall of the bracket 3112 is rotatably connected to the fan shaft 3114, the fan shaft 3114 and the fourth gear 3113 are transmission-connected with a first transmission belt 3116, the outer wall of the vertical plate 313 is fixedly connected to an air intake pipe 3117, the side of the air intake pipe 3117 close to the bracket 3112 is fixedly connected to a first protective shell 3115, the side of the vertical plate 313 away from the loading bin 314 is fixedly connected to a second protective shell 3118, the fan shaft 3114 is rotatably connected to the inside of the first protective shell 3115, the vertical plate 313 The two ends are symmetrically connected to the driven turntable 3120 for rotation, and the rotation connection between the driven turntable 3120 and the vertical plate 313 is sleeved with a torsion spring, the driven turntable 3120 and the second gear 316 are transmission-connected with the second transmission belt 3121, the third gear 319 and the fixed plate 317 are fixedly connected with the second spring 3110, and a through air passage is opened on the vertical plate 313, and the air passage is connected between the inside of the air inlet pipe 3117 and the air guide groove of the loading bin 314, a filter is arranged on the first protective shell 3115, and the outer wall of the threaded feeding shaft 311 is symmetrically provided with threaded blades, and when the threaded feeding shaft 311 rotates, the threaded blades push the material to move to the middle of the threaded feeding shaft 311.

[0040] When the embodiment of the present invention is actually used:

[0041] When the screw feeder 3 is running, the motor 4 and the belt drive the screw feeder shaft 311 to rotate. During the rotation of the screw feeder shaft 311, the symmetrical screw blades push the coal to the middle position of the screw feeder shaft 311. As the screw feeder shaft 311 rotates, the loading bin 314 rotates together with the screw feeder shaft 311 and the coal blocks piled below are lifted upward under the rotation of the loading bin 314. When the loading bin 314 rotates to a horizontal position, the third gear 319 meshes with the arc-shaped tooth plate 3119. As the screw feeder shaft 311 continues to rotate, the third gear 319 is affected by the meshing with the arc-shaped tooth plate 3119 and rotates. The rotation drives the gear rod 318 to rotate together. During the rotation of the gear rod 318, the second gear 316 meshed with it will rotate together. After the second gear 316 rotates, the screw rod 315 fixedly connected to the second gear 316 will rotate inside the loading bin 314. The rotation of the screw rod 315 causes the push plate 3111 to slide inside the loading bin 314, so that the coal blocks accumulated on the loading bin 314 are discharged from the inside of the spiral reclaimer 3 under the push of the push plate 3111, thereby avoiding the problem that the coal blocks transported by the loading bin 314 have not completely separated from the loading bin 314 to the discharging side during the repeated rotation of the loading bin 314, resulting in the loading bin 314 being carried out in the reverse direction of the feeding direction, thereby improving the transportation efficiency.

[0042] When the coal is lifted inside the spiral feeder 3, the rotation of the threaded feeder shaft 311 and the movement of the equipment will cause the coal to be transported and produce coal ash. The gear rod 318 will drive the fourth gear 3113 to rotate together during the rotation. The fourth gear 3113 will drive the fan shaft 3114 to rotate inside the first protective shell 3115 through the transmission of the first transmission belt 3116 during the rotation. The fan shaft 3114 will exhaust the air inside the first protective shell 3115 to the outside during the rotation inside the first protective shell 3115, so that the first protective shell Negative pressure is generated in the inner cavity of 3115 and air is sucked outwards through the air inlet pipe 3117. When the coal blocks are pushed by the inclined surface at the bottom of the inner cavity of the loading bin 314 and the push plate 3111, the coal ash generated by the movement of the coal blocks will be sucked into the interior of the first protective shell 3115 by the fan shaft 3114 through the air inlet pipe 3117, thereby reducing the problem of flying coal ash in the coal blocks when the threaded material taking shaft 311 rotates, avoiding safety problems caused by surrounding staff inhaling coal ash, and reducing coal ash can prevent dust from floating, ensuring the cleanliness of the surrounding environment during coal processing.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal handling and conveying device for a thermal power station, comprising a crawler transport vehicle (1), a conveying frame (2) and a screw reclaimer (3), characterized in that: The conveying frame (2) is fixedly connected to the top of the crawler transport vehicle (1), and the spiral feeder (3) is fixedly connected to the side wall of the conveying assembly (21). The conveying frame (2) includes a conveying assembly (21), and the conveying assembly (21) includes an arched frame plate (215), an axle rod (219) and a convex rod (2110). The upper surface of the conveying frame (2) is driven to rotate and is connected to a main transmission shaft (211). A side of the side wall of the conveying frame (2) close to the spiral feeder (3) is fixedly connected to an induction plate (213). The outer wall of the spiral feeder (3) is slidably connected to a slide plate (214) that is mutually inductive with the induction plate (213). The arched frame plates (215) are arranged in a linear array at the bottom of the conveying frame (2). The arched frame plates (215) are arranged in a linear array at the bottom of the conveying frame (2). Both ends of the conveyor frame (215) are fixedly connected with support rods (216), the support rods (216) penetrate and are slidably connected to the inside of the conveyor frame (2), the top end of the support rod (216) is rotatably connected to a transmission shaft (217), the upper surface of the arched frame plate (215) and the lower surface of the conveyor frame (2) are symmetrically fixedly connected with a first spring (218), the bottom of the conveyor frame (2) is installed with a driver, the shaft rod (219) is installed at the output end of the drive, the protruding rod (2110) is threadedly and evenly fixedly connected to the outer wall of the shaft rod (219), the spacing between the multiple protruding rods (2110) is equal to the spacing between the multiple arched frame plates (215), and the shaft rod (219) is electrically connected to the induction plate (213).

2. The coal handling and conveying device for a thermal power station according to claim 1, characterized in that: A motor (4) is installed above the spiral feeder (3), and belts are meshed at both ends of the drive shaft of the motor (4). A feeder assembly (31) is provided on the spiral feeder (3), and the feeder assembly (31) includes a threaded feeder shaft (311) rotatably connected to the inside of the spiral feeder (3), and first gears (312) are fixedly connected at both ends of the threaded feeder shaft (311), and the belt transmission is connected between the output shaft of the motor (4) and the first gear (312).

3. The coal handling and conveying device for a thermal power station according to claim 2, characterized in that: The material taking assembly (31) further comprises a screw rod (315) and a push plate (3111); a vertical plate (313) is fixedly connected to the middle of the outer wall of the threaded material taking shaft (311); a loading bin (314) is fixedly connected to the outer wall of the vertical plate (313); the screw rod (315) is rotatably connected to the inside of the loading bin (314); one end of the screw rod (315) located outside the loading bin (314) is fixedly connected to a second gear (316); the push plate (3111) is slidably connected to the outer wall of the screw rod (315); The bottom of the inner cavity is set as an inclined surface, and the bottom of the inner cavity of the loading bin (314) is provided with air guide grooves distributed in a linear array. The outer wall of the vertical plate (313) is symmetrically fixedly connected with a fixed plate (317), and the internal rotation of the fixed plate (317) is connected with a gear rod (318), and the gear rod (318) is meshed with the second gear (316). Both ends of the gear rod (318) are fixedly connected with a third gear (319), and the inner wall of the spiral feeder (3) is fixedly connected with an arc-shaped gear plate (3119) that is meshed with the third gear (319).

4. The coal handling and conveying device for a thermal power station according to claim 3, characterized in that: The material taking assembly (31) further comprises a bracket (3112) fixedly connected to the outer wall of the threaded material taking shaft (311); the top of the bracket (3112) is rotatably connected to a fourth gear (3113) meshing with the gear rod (318); the middle section of the outer wall of the bracket (3112) is rotatably connected to a fan shaft (3114); a first transmission belt (3116) is transmission-connected between the fan shaft (3114) and the fourth gear (3113); the outer wall of the vertical plate (313) is fixedly connected to an air intake pipe (3117); a side of the air intake pipe (3117) close to the bracket (3112) is fixedly connected to a first protective shell (3116); 115), a second protective shell (3118) is fixedly connected to one side of the vertical plate (313) away from the loading bin (314), the fan shaft (3114) is rotatably connected to the inside of the first protective shell (3115), and driven turntables (3120) are symmetrically rotatably connected at both ends of the vertical plate (313), and torsion springs are sleeved at the rotational connection between the driven turntable (3120) and the vertical plate (313), and a second transmission belt (3121) is transmission-connected between the driven turntable (3120) and the second gear (316), and a second spring (3110) is fixedly connected between the third gear (319) and the fixed plate (317).

5. The coal handling and conveying device for a thermal power station according to claim 1, characterized in that: A spring is sleeved at the sliding connection between the slide plate (214) and the spiral feeder (3), a magnetic plate is provided on the slide plate (214), a magnetic induction coil is provided on the induction plate (213), a controller connected to the magnetic induction coil is provided inside the conveying frame (2), and the controller is electrically connected to the driver of the shaft rod (219).

6. The coal handling and conveying device for a thermal power station according to claim 1, characterized in that: The protruding rods (2110) are distributed on the outer wall of the shaft rod (219) in a threaded shape, the protruding rods (2110) at the head and tail ends of the shaft rod (219) form an angle of 180 degrees, the middle part of the arched frame plate (215) is arched, and the outer wall of the protruding rod (2110) is attached to the middle part of the lower surface of the arched frame plate (215).

7. The coal handling and conveying device for a thermal power station according to claim 4, characterized in that: The vertical plate (313) is provided with a penetrating air passage, the air passage being connected between the inside of the air inlet pipe (3117) and the air guide groove of the loading bin (314), and a filter screen is provided on the first protective shell (3115).

8. The coal handling and conveying device for a thermal power station according to claim 2, characterized in that: The outer wall of the threaded material taking shaft (311) is symmetrically provided with threaded blades, and when the threaded material taking shaft (311) rotates, the threaded blades push the material to move toward the middle of the threaded material taking shaft (311).

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