Efficient unblocking device for conical blanking bin

Abstract

The present application relates to a kind of high-efficiency unblocking devices of conical discharge bin, and the discharge process makes turbine (30) rotate, when gradually blocking occurs, rotational speed detection module (31) detects the rotational speed drop of turbine (30) by detecting shaft (29), and connection assembly is switched from disconnection to transmission state, so that main shaft (23) drives tangential shaft (27) to rotate, drives helical blade one (28) to rotate to scatter blocking mass, and generates radial thrust to push material to central column (24) to reduce contact with the inner wall of conical discharge bin (10), reduce adhesion generation;While the radial thrust generated by helical blade one (28) rotation, its tangential component makes central column (24) generate rotational force, and drives scraper (21) to rotate to scrape and clean the material adhered to the inner wall of conical discharge bin (10), improve unblocking effect, to realize automatic real-time detection discharge condition, prevent the occurrence of blocking phenomenon, avoid affecting production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of needle coke production, and in particular to a high-efficiency clogging removal device for a conical discharge bin. BACKGROUND

[0002] In the production process of coal-based needle coke, from raw material pretreatment to final product packaging and delivery, each process cannot be separated from an efficient and reliable material conveying system. The discharge bin, as a bridge connecting different devices, plays a crucial role. In actual production, due to the characteristics of the material itself such as humidity, uneven particle size distribution, adhesion, and environmental conditions, the material is prone to caking and forming clogging groups or adhering to the side wall of the discharge bin, causing problems such as material bridging and arching. If not cleaned in time, it will cause poor material flow or even complete blockage, thereby affecting production efficiency and safety. In the prior art, manual cleaning is used for the discharge bin, which has a poor working environment, high labor intensity, and is prone to danger. The method of blasting the discharge bin is dangerous and prone to dust explosion and damage to related equipment. The use of a vibrator to apply a vibration force and an air cannon to spray air flow has a single function and poor clogging removal effect.

[0003] A Chinese utility model patent with the publication number CN220722196U discloses an automatic clogging removal device for a discharge opening of a batching bin. A worm gear ring drives a scraper to rotate, scraping off the material adhering to the inner wall at the lower end of the batching cylinder. The extension end of an electric push rod moves up and down, turning the material to separate and discharge the clogging groups. A vibration motor is provided to assist in clogging removal. However, the above-mentioned solution only allows manual control to stop the clogging removal process when clogging occurs and the material cannot be discharged. It cannot prevent the occurrence of clogging, which affects production efficiency and has poor clogging removal effect. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing automatic clogging removal device for the discharge opening of the batching bin only allows manual control to stop the clogging removal process when clogging occurs and the material cannot be discharged. It cannot prevent the occurrence of clogging, which affects production efficiency and has poor clogging removal effect.

[0005] In order to solve the above problems, the application provides a high-efficiency clogging cleaning device for a conical discharge bin, a plurality of scrapers are arranged on the inner wall of the conical discharge bin at intervals in the circumferential direction, a motor is arranged at the top of the conical discharge bin, a main shaft is connected to the output end of the motor, a central column connected to the scraper is rotatably arranged on the main shaft, the main shaft is inserted into the cavity of the central column and is provided with an eccentric wheel to make the central column vibrate, a plurality of tangential shafts are rotatably arranged on the central column at intervals in the circumferential direction, the tangential shafts are provided with helical blades, the main shaft and the tangential shafts can be driven or disconnected through a connecting assembly, a detection shaft is rotatably arranged at the lower side of the central column, a turbine is arranged at the lower end of the detection shaft, the turbine rotates when discharging, a rotating speed detection module corresponding to the detection shaft is arranged in the cavity of the central column, and the main shaft drives the tangential shafts through the connecting assembly when clogging occurs and the rotating speed of the detection shaft decreases.

[0006] The high-efficiency clogging cleaning device for a conical discharge bin also has the following technical features:

[0007] The connecting assembly comprises a worm wheel and a worm that are engaged with each other, the tangential shafts are inserted into the cavity of the central column and are provided with the worm wheel, the worm is hollow and is provided with a clutch push rod that slides, the clutch push rod is provided with engagement pieces opposite to the end close to the main shaft, the clutch push rod can slide to make the two engagement pieces engage when clogging occurs and the rotating speed of the detection shaft decreases, and the worm and the main shaft rotate synchronously.

[0008] The worm is provided with an electromagnet, a spring is arranged between the electromagnet and the clutch push rod, a control module is arranged in the cavity of the central column, and the control module controls the electromagnet to be electrified to generate a repulsive force on the clutch push rod when clogging occurs and the rotating speed of the detection shaft decreases is detected by the rotating speed detection module.

[0009] The central column is an inverted cone that is large at the top and small at the bottom, and the outer surface of the central column is provided with helical blades from top to bottom.

[0010] The scraper is provided with a plurality of air holes opened along the length direction, a plurality of air injection holes are arranged on the outer side of the scraper and are in communication with the air holes, the air injection holes are arranged at intervals along the length direction of the scraper, and the scraper is provided with a cleaning head corresponding to the air injection holes.

[0011] The cleaning head is inserted into the air injection hole and forms a gap between the air injection hole.

[0012] The upper side of the conical discharge bin is open and is provided with a cover plate, the cover plate is provided with an air inlet side pipe, one end of the air inlet side pipe is connected to an external air source, the other end is connected to an air equalizing ring, the inner side of the air equalizing ring is provided with an air equalizing ring groove in communication with the air inlet side pipe.

[0013] The center pipe is sleeved on the main shaft, the upper end of the center pipe is sealed and inserted into the equalizing ring, a side hole corresponding to the equalizing ring groove is formed on the center pipe, the lower end of the center pipe is connected with the center column, a high-pressure gas path communicating with the center pipe is formed on the center column, the center column is connected with the scraper through the supporting side pipe, one end of the supporting side pipe communicates with the high-pressure gas path and the other end communicates with the equalizing hole.

[0014] The two occlusal plates are provided with a plurality of occlusal grooves on one side thereof close to each other, and occlusal teeth are formed between adjacent occlusal grooves.

[0015] The worm is provided with an axial key groove, and the clutch push rod is provided with a sliding key corresponding thereto.

[0016] Both ends of the worm are rotatably provided with supporting cylinders, a plurality of supporting rods are circumferentially and intermittently arranged on the supporting cylinders, and the end portions of the supporting rods are connected with the center column.

[0017] The present application has the following beneficial effects: in the process of discharging, the main shaft drives the eccentric wheel to rotate, so that the center column vibrates to reduce the probability of blockage; at the same time, the discharging process makes the turbine rotate, when blockage gradually occurs, the rotational speed detection module detects the rotational speed of the turbine through the shaft detection, and the connecting assembly is switched from the disconnected state to the transmission state, so that the main shaft drives the tangential shaft to rotate, drives the helical blade I to rotate to scatter the blockage, and generates a radial thrust to push the material to the center column to reduce the contact with the inner wall of the conical discharge bin and reduce adhesion; at the same time, the radial thrust generated by the rotation of the helical blade I makes the center column generate a rotating force, and drives the scraper to rotate to scrape off the material adhered to the inner wall of the conical discharge bin, improves the cleaning effect, so as to realize automatic real-time detection of the discharging condition, prevent the occurrence of blockage, and avoid affecting the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial sectional view of the present application;

[0019] Figure 2 is a partial view of Figure 1 ;

[0020] Figure 3 is a partial sectional view of Figure 2 ;

[0021] Figure 4 is a structural schematic view of the connecting assembly;

[0022] Figure 5 is a partial enlarged view of A in Figure 3 ;

[0023] Figure 6 is a partial enlarged view of B in Figure 3 ;

[0024] Figure 7 for Figure 2 a lateral sectional view;

[0025] Figure 8 a schematic view of a structure of a central column. DETAILED DESCRIPTION

[0026] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0027] As Figures 1 to 8 shown, the high-efficiency clogging removal device of the conical feed bin 10 is provided with a plurality of scrapers 21 on the inner wall of the conical feed bin 10 at intervals along the circumference thereof, a motor 22 is arranged at the top of the conical feed bin 10, the output end of the motor 22 is connected with a main shaft 23, a central column 24 connected with the scraper 21 is rotatably arranged on the main shaft 23, the main shaft 23 is inserted into the cavity 25 of the central column 24 and is provided with an eccentric wheel 26 to make the central column 24 vibrate; a plurality of tangential shafts 27 are rotatably arranged on the central column 24 at intervals along the circumference thereof, the tangential shaft 27 is provided with helical blades I 28, the main shaft 23 and the tangential shaft 27 can be driven or disconnected through a connecting assembly; a detection shaft 29 is rotatably arranged at the lower side of the central column 24, a turbine 30 is arranged at the lower end of the detection shaft 29, the turbine 30 rotates due to the feeding, and a rotating speed detection module 31 corresponding to the detection shaft 29 is arranged in the cavity 25 of the central column 24, when clogging occurs and the rotating speed of the detection shaft 29 decreases, the main shaft 23 drives the tangential shaft 27 to rotate through the connecting assembly.

[0028] In the process of feeding, the main shaft 23 drives the eccentric wheel 26 to rotate, so that the central column 24 vibrates to reduce the probability of clogging; at the same time, the feeding process makes the turbine 30 rotate, when clogging gradually occurs, the rotating speed detection module 31 detects the decrease of the rotating speed of the turbine 30 through the detection shaft 29, the connecting assembly is switched from the disconnected state to the driving state, so that the main shaft 23 drives the tangential shaft 27 to rotate, drives the helical blades I 28 to rotate to scatter the clogging lumps, and generates a radial thrust to push the material to the central column 24 to reduce the contact with the inner wall of the conical feed bin 10 and reduce the adhesion; at the same time, the radial thrust generated by the rotation of the helical blades I 28 has a tangential component that makes the central column 24 generate a rotating force and drives the scraper 21 to rotate to scrape and clean the material adhered to the inner wall of the conical feed bin 10, improves the clogging removal effect, so as to realize automatic real-time detection of the feeding condition, prevent the occurrence of clogging phenomenon and avoid affecting the production efficiency.

[0029] The upper side of the conical hopper 10 is provided with an opening and a cover plate 55, a motor 22 is installed on the cover plate 55 through a motor support 11, and the motor 22 is provided with a corresponding power supply and an electric control module. The conical hopper 10 is provided with a mounting assembly to fix the conical hopper 10 and connect it with other equipment. A pneumatic vibrator can also be arranged on the outer wall of the conical hopper 10 to further improve the unblocking effect. The cover plate 55 is provided with an inlet 12, and the lower side of the conical hopper 10 is provided with a discharge port 13, and the turbine 30 is located above the discharge port 13. Valves are arranged on the inlet 12 and the discharge port 13. The size of the conical hopper 10, the taper of the side wall, and the size of the inlet 12 and the discharge port 13 can be selected.

[0030] The center column 24, the main shaft 23, and the conical hopper 10 are coaxially arranged, and the rotating connection parts of the center column 24 and the main shaft 23, the detection shaft 29, and the tangential shaft 27 are all connected by sealing rings and bearings. Figure 7 、 Figure 8 As shown in the specific structure shown in the drawings, the upper and lower sides of the center column 24 are both provided with through holes, the main shaft 23 is rotatably inserted into the through hole on the upper side, and the detection shaft 29 is rotatably inserted into the through hole on the lower side. The side of the center column 24 is also provided with a through hole, and the tangential shaft 27 is rotatably inserted into the through hole. Figure 8 In addition, as shown in the drawings, the center column 24 includes two halves casted and combined by flanges to facilitate the installation of parts in the cavity 25, while ensuring the sealing to prevent materials from entering the cavity 25.

[0031] The output end of the motor 22 drives the main shaft 23 and the eccentric wheel 26 to rotate to generate vibration. Since the main shaft 23 is connected with the center column 24, the center column 24 is vibrated. In addition, a damping assembly is arranged between the output end of the motor 22 and the main shaft 23 to isolate or absorb vibration and reduce damage to the motor 22. The damping assembly can adopt structures such as elastic couplings, damping pads, or damping blocks.

[0032] One side of the scraper 21 is in contact with the inner wall of the conical hopper 10, and the other side is connected with the center column 24. The lower end of the scraper 21 can extend into the discharge port 13 to clean the materials adhered to the inner wall of the discharge port 13. The number of scrapers 21 is preferably 3. The tangential shaft 27 and the main shaft 23 form an included angle in the radial direction, that is, there is a certain distance between the tangential shaft 27 and the main shaft 23, and the number of tangential shafts 27 is preferably 3, which are arranged alternately with the scrapers 21 to avoid motion interference.

[0033] The rotation direction of the helical blade 28 corresponds to the rotation direction of the main shaft 23, so that the radial thrust generated by the rotation of the helical blade 28 can push the material towards the center column 24; the pitch, diameter and number of turns of the helical blade 28 can be selected and set according to actual needs, which are not limited here.

[0034] Preferably, referring to Figure 3 、 Figure 4 、 Figure 5 , the connecting assembly comprises intermeshing worm gears 32 and a worm 33, the tangential shaft 27 is inserted into the cavity 25 of the center column 24 and is provided with the worm gear 32, the worm 33 is hollow and is provided with the clutch push rod 34 which is slidingly arranged, and the two ends of the clutch push rod 34 are respectively provided with the engaging pieces 35 which are opposite to each other, so that when the rotation speed of the detection shaft 29 decreases due to blockage, the clutch push rod 34 can slide to engage the two engaging pieces 35, so that the worm 33 rotates synchronously with the main shaft 23.

[0035] When the rotation speed of the detection shaft 29 decreases due to blockage, the clutch push rod 34 can slide to engage the two engaging pieces 35, and the worm 33 is driven by the clutch push rod 34 to rotate synchronously with the main shaft 23, thereby driving the worm gear 32, the tangential shaft 27 and the helical blade 28 to rotate correspondingly. Due to the self-locking property of the worm gear 32 and the worm 33, when there is no blockage during normal discharging, the center column 24 and the scraper 21 are stationary and will not rotate, thereby avoiding the mutual influence between the scraper 21 and the discharging process.

[0036] Among them, one side of the engaging piece 35 is fixed with the clutch push rod 34 or the main shaft 23, and the other side can be engaged with each other. The engaging mode of the engaging piece 35 can be selected and set, which is not limited here, for example, a plurality of engaging teeth can be arranged on the corresponding side of the engaging piece 35 for meshing transmission, of course, a friction layer can also be arranged on the corresponding side of the engaging piece 35 for friction transmission.

[0037] Preferably, referring to Figure 4 、 Figure 5 , the worm 33 is provided with an electromagnet 36, a spring 37 is arranged between the electromagnet 36 and the clutch push rod 34, and a control module 38 is arranged in the cavity 25 of the center column 24, so that when the rotation speed of the detection shaft 29 decreases due to blockage and is detected by the rotation speed detection module 31, the control module 38 controls the electromagnet 36 to be electrified to generate a repulsive force on the clutch push rod 34.

[0038] When the rotation speed of the detection shaft 29 decreases due to blockage and is detected by the rotation speed detection module 31, the control module 38 controls the electromagnet 36 to be electrified to generate a repulsive force on the clutch push rod 34, so that the clutch push rod 34 slides to engage the two engaging pieces 35, and the worm 33 is driven by the clutch push rod 34 to rotate synchronously with the main shaft 23, thereby driving the worm gear 32, the tangential shaft 27 and the helical blade 28 to rotate correspondingly.

[0039] The clutch push rod 34 has a permanent magnet at the end near the electromagnet 36. When the electromagnet 36 is energized, it can generate a repulsive force on the clutch push rod 34. In addition, the spring 37 is a tension spring. When the electromagnet 36 is de-energized, it can generate a pulling force on the clutch push rod 34, causing the two engagement plates 35 to disengage.

[0040] The lower end of the worm gear 33, within the support cylinder 46, may house a power supply and controller corresponding to the electromagnet 36. The controller is wirelessly connected to the control module 38, enabling the control module 38 to energize the electromagnet 36. The control module 38 integrates a corresponding processor and power supply. The speed detection module 31 is wirelessly connected to the control module 38. The control module 38 receives the speed of the detection shaft 29 detected by the speed detection module 31 and performs comparative analysis through the processor. When the current speed of the detection shaft 29 is lower than a preset threshold, the control module 38 energizes the electromagnet 36. For example, during normal feeding, the speed of the worm gear 30 and the detection shaft 29 is 20 r / min. If the speed decreases to the preset threshold of 15 r / min, the control module 38 energizes the electromagnet 36. Of course, the definition and setting of the normal feeding speed of the worm gear 30 and the preset threshold for speed reduction can be selected and set as needed; no limitation is made here.

[0041] Among them, see Figure 3 , Figure 5 The speed detection module 31 may include a sensor 39 and a detection gear 40. The detection gear 40 is made of metal and is mounted on the detection shaft 29. The detection end of the sensor 39 is close to the detection gear 40. The working principle of the speed detection module 31 utilizes the Hall effect. When the detection shaft 29 rotates, the teeth of the detection gear 40 pass through the sensor 39 sequentially, causing the magnetic field strength around the sensor 39 to change periodically. These changes are captured by the sensor and converted into an electrical signal output. The specific structure and working principle of the speed detection module 31 are existing technologies and will not be described in detail here. In addition, the support cylinder 46 on the lower side of the worm gear 32 can be sealed with a magnetic field insulating material to prevent the speed detection module 31 from being interfered with by the electromagnet 36. Of course, the speed detection module 31 can also adopt other forms to obtain the speed of the detection shaft 29, such as using existing contact or non-contact mechanical tachometers to measure the speed, or using photoelectric sensors to measure the speed, or using electronic counters and pulse generators to measure the speed, or using laser Doppler velocimeters to measure the speed, etc.

[0042] Preferably, the central column 24 is an inverted cone shape with a larger top and a smaller bottom, and the outer surface of the central column 24 is provided with spiral blades 41 from top to bottom.

[0043] The inverted conical center column 24 is matched with the shape of the conical lower hopper 10, facilitating the downward movement of the upper material between the center column 24 and the conical lower hopper 10 for discharging, and the radial pushing force generated by the rotation of the helical blade 28 pushes the lateral material to the center column 24, facilitating the downward movement of the lateral material along the outer surface of the center column 24 for discharging, in addition, the inverted conical center column 24 also facilitates the flow of the material to the turbine 30 to make it rotate; and the center column 24 drives the helical blade 41 to rotate synchronously, facilitating the downward movement of the material, while cooperating with the helical blade 28 to break up the clogging mass, improving the cleaning effect and efficiency.

[0044] The width direction of the helical blade 41 is perpendicular to the outer surface of the center column 24, that is, the helical blade 41 is inclined from top to bottom and from center to edge, so as to facilitate the downward movement of the material under the action of the helical blade 41, avoiding the situation of poor discharging.

[0045] Preferably, referring to Figure 3 、 Figure 6 The scraper 21 is provided with a plurality of air holes 51 along the length direction thereof, and a plurality of air injection holes 52 are arranged on the outer side of the scraper 21 and communicate with the air holes 51, the air injection holes 52 are arranged at intervals along the length direction of the scraper 21, and the scraper 21 is provided with a cleaning head 53 corresponding to the air injection holes 52.

[0046] The center column 24 drives the scraper 21 to rotate, and the air injection holes 52 spray air to the inner wall of the conical lower hopper 10, cooperating with the sweeping action of the cleaning head 53 to clean the material adhered to the inner wall of the conical lower hopper 10, improving the cleaning effect and efficiency of the side wall.

[0047] The arrangement mode, size and number of the air injection holes 52 can be selected, for example, a plurality of rows of air injection holes 52 can be arranged along the length direction of the scraper 21, and each row of air injection holes 52 is arranged staggered, so as to improve the cleaning effect of the side wall; the arrangement mode, size and number of the cleaning head 53 can also be selected, for example, the cleaning head 53 can be arranged inside or outside the air injection holes 52, and can be arranged at intervals or continuously. The arrangement of the air injection holes 52 and the cleaning head 53 should correspond to the size of the scraper 21, and the width of the scraper 21 should be reduced as much as possible to reduce the influence of the scraper 21 on discharging when it is stationary.

[0048] Preferably, the air injection holes 52 are arranged at an angle with the vertical direction of the scraper 21, that is, the air injection holes 52 are inclined, and the specific inclination direction can be the same as or opposite to the rotation direction of the scraper 21, so as to clean the material adhered to the inner wall of the conical lower hopper 10. Of course, the air injection holes 52 can also be arranged perpendicular to the scraper 21.

[0049] Preferably, the cleaning head 53 is inserted into the air jet hole 52 and a gap is formed between the cleaning head 53 and the air jet hole 52. When the center column 24 and the scraper 21 are stationary, i.e. during normal discharging, the probability of lowering the material into the air jet hole 52 is reduced, the structure is compact, and the air jet hole 52 sprays annular high-pressure gas to improve the cleaning effect.

[0050] Preferably, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 , the conical discharging bin 10 is open at the top and is provided with a cover plate 55, the cover plate 55 is provided with a one-way exhaust valve 54 to facilitate exhaust, the cover plate 55 is provided with an air inlet side pipe 56, one end of the air inlet side pipe 56 is connected with an external gas source, the other end is connected with a uniform gas ring 57, the inner side of the uniform gas ring 57 is provided with a uniform gas ring groove 58 in communication with the air inlet side pipe 56.

[0051] The main shaft 23 is sleeved with a center pipe 59, the upper end of the center pipe 59 is sealed and inserted into the uniform gas ring 57, the center pipe 59 is provided with a side hole 60 in communication with the uniform gas ring groove 58, the lower end of the center pipe 59 is connected with the center column 24, the center column 24 is provided with a high-pressure gas path 61 in communication with the center pipe 59, the center column 24 is connected with the scraper 21 through a support side pipe 62, one end of the support side pipe 62 is in communication with the high-pressure gas path 61, the other end is in communication with the uniform gas hole 51.

[0052] The high-pressure gas enters the uniform gas ring groove 58 of the uniform gas ring 57 from the external gas source and the air inlet side pipe 56, then enters the center pipe 59 through the side hole 60 on the center pipe 59, and finally enters the uniform gas hole 51 along the center pipe 59, the high-pressure gas path 61 and the support side pipe 62, and is finally sprayed out through the air jet hole 52, so as to realize the gas supply for the air jet hole 52 while the center pipe 59 rotates.

[0053] The upper end of the center pipe 59 is sealed and rotationally sealed with the main shaft 23, and the center pipe 59 is rotationally sealed and connected with the cover plate 55; the air inlet side pipe 56 is installed on the cover plate 55 through a pipe support 63; the external gas source can provide high-pressure inert gas, preferably nitrogen or argon, to avoid chemical reactions caused by oxygen in the air. The inner diameter of the center pipe 59 is greater than the diameter of the main shaft 23, so that there is a gap between the center pipe 59 and the main shaft 23, which facilitates the passage of high-pressure gas. The high-pressure gas path 61 and the cavity 25 of the center column 24 are not in communication with each other to ensure the airtightness of the high-pressure gas path 61.

[0054] The support side pipe 62 is preferably arranged perpendicularly to the scraper 21, and reinforcing ribs are arranged at the connection between the support side pipe 62 and the central column 24 and the scraper 21, so as to improve the connection stability; further, a side rod 64 is arranged between the central column 24 and the scraper 21, preferably, the side rod 64, the support side pipe 62 and the outer wall of the central column 24 form a triangle, so as to further improve the connection stability.

[0055] Preferably, referring to Figure 4 、 Figure 5 , a plurality of occlusal grooves 42 are arranged on one side of the two occlusal plates 35 close to each other and spaced apart in the circumferential direction, and the occlusal teeth 43 are formed between adjacent occlusal grooves 42, and the occlusal grooves 42 on the occlusal plate 35 can be correspondingly occluded with the occlusal teeth 43 on the other occlusal plate 35.

[0056] The occlusal grooves 42 and the occlusal teeth 43 are the same in shape and size, so that when the main shaft 23 rotates at high speed, the sliding of the clutch push rod 34 can make the occlusal grooves 42 of the two occlusal plates 35 mesh with the corresponding occlusal teeth 43.

[0057] Preferably, referring to Figure 4 、 Figure 5 , the worm 33 is provided with an axial key groove 44, and the clutch push rod 34 is correspondingly provided with a sliding key 45. The cross section of the sliding hole and the clutch push rod 34 is square, oval or other non-circular shape, so that the clutch push rod 34 can drive the worm 33 to rotate synchronously.

[0058] Preferably, referring to Figure 4 、 Figure 5 , the two ends of the worm 33 are rotatably provided with support cylinders 46, and a plurality of support rods 47 are arranged on the support cylinders 46 and spaced apart in the circumferential direction, and the end portions of the support rods 47 are connected with the central column 24, so as to realize the rotary support of the worm 33.

[0059] The working principle of the present application is as follows:

[0060] The material enters the conical hopper 10 from the feed port 12 and is discharged from the discharge port 13. During the discharging process, the output end of the motor 22 drives the main shaft 23 and the eccentric wheel 26 to rotate, so that the center column 24 vibrates to reduce the probability of blockage, and the material can rotate when flowing through the blades of the worm gear 30; when blockage gradually occurs, the rotational speed detection module 31 detects that the rotational speed of the detection shaft 29 and the turbine 30 decreases, and the control module 38 controls the electromagnet 36 to be electrified to generate a repulsive force on the clutch push rod 34, so that the clutch push rod 34 slides to the occlusion of the two occlusion pieces 35, and through the cooperation of the axial key groove 44 and the sliding key 45, the worm gear 33 rotates synchronously with the main shaft 23, drives the worm gear 32, the tangential shaft 27 and the spiral blade 1 28 to rotate correspondingly, the rotation of the spiral blade 1 28 can scatter the blockage and generate a radial thrust to push the material to the center column 24 to reduce the contact with the inner wall of the conical hopper 10 and reduce the adhesion; at the same time, the radial thrust generated by the rotation of the spiral blade 1 28 generates a tangential component that makes the center column 24 generate a rotational force and drives the scraper 21 to rotate, and the air injection hole 52 sprays annular gas to the inner wall of the conical hopper 10, which cooperates with the sweeping action of the cleaning head 53 to clean the material adhered to the inner wall of the conical hopper 10, thereby improving the side wall cleaning effect and efficiency; at the same time, the center column 24 and the spiral blade 2 41 rotate synchronously, which further facilitates the downward movement of the material and improves the cleaning effect and efficiency of the blockage; thereby realizing automatic real-time detection of the discharging condition, preventing the occurrence of blockage and avoiding affecting the production efficiency.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-efficiency unblocking device for a conical feeding hopper, characterized in that, Multiple scrapers (21) are spaced circumferentially on the inner wall of the conical feeding hopper (10). A motor (22) is installed at the top of the conical feeding hopper (10). The output end of the motor (22) is connected to a main shaft (23). A central column (24) connected to the scrapers (21) is rotatably mounted on the main shaft (23). The main shaft (23) is inserted into the cavity (25) of the central column (24) and is equipped with an eccentric wheel (26) to make the central column (24) vibrate. Multiple tangential shafts (27) are rotatably mounted circumferentially on the central column (24). 27) is provided with a spiral blade (28), and the main shaft (23) and the tangential shaft (27) can be driven or disconnected through the connecting assembly; the lower side of the central column (24) is provided with a detection shaft (29), and the lower end of the detection shaft (29) is provided with a turbine (30). The feeding causes the turbine (30) to rotate. The cavity (25) of the central column (24) is provided with a speed detection module (31) corresponding to the detection shaft (29). When a blockage occurs and the speed of the detection shaft (29) decreases, the main shaft (23) is driven by the tangential shaft (27) through the connecting assembly.

2. The high-efficiency unblocking device for the conical feeding hopper according to claim 1, characterized in that, The connecting assembly includes a worm gear (32) and a worm (33) that mesh with each other. A tangential shaft (27) is inserted into the cavity (25) of the central column (24) and is provided with a worm gear (32). The worm (33) is hollow and has a clutch push rod (34) that slides on it. The clutch push rod (34) and the main shaft (23) are respectively provided with a meshing plate (35). When a blockage occurs and the speed of the detection shaft (29) decreases, the clutch push rod (34) can slide to the two meshing plates (35) to mesh, so that the worm (33) and the main shaft (23) rotate synchronously.

3. The high-efficiency unblocking device for the conical feeding hopper according to claim 2, characterized in that, An electromagnet (36) is provided on the worm gear (33), and a spring (37) is provided between the electromagnet (36) and the clutch push rod (34). A control module (38) is provided in the cavity (25) of the central column (24). When a blockage occurs and the speed of the detection shaft (29) decreases through the speed detection module (31), the control module (38) controls the electromagnet (36) to be energized so as to generate a repulsive force on the clutch push rod (34).

4. The high-efficiency unblocking device for the conical feeding hopper according to claim 1, characterized in that, The central column (24) is an inverted cone shape with a larger top and a smaller bottom, and the outer surface of the central column (24) is provided with two spiral blades (41) from top to bottom.

5. The high-efficiency unblocking device for the conical feeding hopper according to claim 1, characterized in that, The scraper (21) has an air equalization hole (51) inside along its length direction, and an air jet hole (52) communicating with the air equalization hole (51) is provided on the outside of the scraper (21). Multiple air jet holes (52) are spaced apart along the length direction of the scraper (21), and a cleaning head (53) corresponding to the air jet hole (52) is provided on the scraper (21).

6. The high-efficiency unblocking device for the conical feeding hopper according to claim 5, characterized in that, The cleaning head (53) is inserted into the air jet hole (52) and a gap is formed between it and the air jet hole (52).

7. The high-efficiency unblocking device for the conical feeding hopper according to claim 5, characterized in that, The conical feeding hopper (10) has an opening on the upper side and is provided with a cover plate (55). An air inlet pipe (56) is provided on the cover plate (55). One end of the air inlet pipe (56) is connected to an external air source, and the other end is connected to an air equalization ring (57). An air equalization ring groove (58) communicating with the air inlet pipe (56) is opened on the inner side of the air equalization ring (57). A central tube (59) is fitted on the main shaft (23). The upper end of the central tube (59) is sealed and inserted into the gas equalization ring (57). A side hole (60) corresponding to the gas equalization ring groove (58) is opened on the central tube (59). The lower end of the central tube (59) is connected to the central column (24). A high-pressure air passage (61) connected to the central tube (59) is opened on the central column (24). The central column (24) is connected to the scraper (21) through the support side tube (62). One end of the support side tube (62) is connected to the high-pressure air passage (61), and the other end is connected to the gas equalization hole (51).

8. The high-efficiency unblocking device for the conical feeding hopper according to claim 2, characterized in that, Two bite plates (35) are provided with multiple bite grooves (42) spaced apart along their circumference on the side that are close to each other. Bite teeth (43) are formed between adjacent bite grooves (42). The bite grooves (42) on the bite plate (35) can bite into each other with the bite teeth (43) on the other bite plate (35).

9. The high-efficiency unblocking device for the conical feeding hopper according to claim 2, characterized in that, An axial keyway (44) is provided inside the worm (33), and a sliding key (45) is provided on the clutch push rod (34).

10. The high-efficiency unblocking device for the conical feeding hopper according to claim 2, characterized in that, Both ends of the worm (33) are rotatably provided with support cylinders (46), and multiple support rods (47) are provided circumferentially on the support cylinders (46). The ends of the support rods (47) are connected to the central column (24).

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