Dioscorea powder processing raw material pulverizer

Abstract

The utility model discloses a kind of shanyao powder processing raw material pulverizers, including frame, the inside of the frame is equipped with crushing assembly, the inside upper end of frame is equipped with hopper, hopper is cooperatively arranged with crushing assembly, further including dust collection component;Dust collection component: it includes primary dust collection pipe, mounting groove, rotating stand, vane and secondary dust collection component, the right end of crushing assembly is set to primary dust collection pipe, primary dust collection pipe is cooperatively arranged with crushing assembly, the middle part of primary dust collection pipe is equipped with mounting groove, the top wall of mounting groove is rotatably connected with rotating stand, the upper and lower inner wall of rotating stand is equipped with evenly distributed vane, the right side of primary dust collection pipe is set to secondary dust collection component, this shanyao powder processing raw material pulverizer, through primary dust collection pipe vane screening and secondary dust collection component bag intermittent rotation dust cleaning design, realize efficient classification dust collection and dynamic dust cleaning anti-blocking and airflow purification, improve shanyao crushing efficiency and environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of yam powder processing technology, specifically to a yam powder raw material crusher. Background Technology

[0002] In the food processing industry, yam powder, as a nutritious functional food, has its processing technology refined, which directly affects the product quality. In the process of yam powder processing, raw material crushing is one of the key steps. The crushing effect not only affects the efficiency of subsequent processing, but also has an important impact on indicators such as the particle size uniformity of the finished product and dust pollution control. As the food processing industry continues to increase its requirements for green production and high efficiency and energy saving.

[0003] Currently, traditional yam powder raw material crushing equipment mainly adopts the principle of mechanical crushing, which achieves material crushing through the high-speed rotation of crushing blades. These types of equipment are usually equipped with simple screening devices to separate particles of different sizes. During the crushing process, some equipment introduces airflow through a fan to assist in material conveying and dispersion. However, the dust removal process mostly relies on a single bag filter structure. After long-term use, the filter bag is prone to a decrease in filtration efficiency due to dust accumulation, requiring frequent manual cleaning.

[0004] The dust removal process lacks a graded treatment mechanism. Large dust particles and fine powder in the dust-laden airflow directly enter a single bag filter, resulting in concentrated bag load and easy damage to the bag due to impact from large particles. Secondly, the dust removal method relies on fixed-frequency mechanical vibration, which cannot dynamically adjust the dust removal cycle according to the amount of dust accumulation. When the amount of dust is large, the bag is prone to rapid blockage, leading to increased equipment pressure drop, decreased airflow efficiency, and even secondary dust adsorption due to incomplete dust removal, affecting the purity of the yam powder product. To address these issues, we propose a yam powder processing raw material crusher. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a yam powder processing raw material crusher with efficient graded dust collection and dynamic dust removal to prevent clogging, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a yam powder processing raw material crusher, comprising a frame, a crushing component inside the frame, a hopper at the upper end of the frame, the hopper being configured in conjunction with the crushing component, and a dust collection component;

[0007] Dust collection assembly: It includes a primary dust collection pipe, an installation slot, a rotating frame, blades, and a secondary dust collection assembly. The primary dust collection pipe is located at the right end of the crushing assembly and is configured to cooperate with the crushing assembly. An installation slot is opened in the middle of the primary dust collection pipe, and a rotating frame is rotatably connected to the top wall of the installation slot. Blades are evenly distributed between the upper and lower inner walls of the rotating frame. The secondary dust collection assembly is located on the right side of the primary dust collection pipe and is configured to cooperate with the primary dust collection pipe. A first collection chamber is located on the lower side of the primary dust collection pipe, and the first collection chamber is connected to the primary dust collection pipe through a connecting pipe. Through the screening of the blades of the primary dust collection pipe and the intermittent rotating dust cleaning design of the filter bag of the secondary dust collection assembly, efficient graded dust collection, dynamic dust cleaning to prevent clogging, and airflow purification are achieved, thereby improving the yam crushing efficiency and environmental friendliness.

[0008] Furthermore, a control switch group is provided at the left end of the frame, and the input end of the control switch group is electrically connected to an external power supply for stable control.

[0009] Furthermore, the pulverizing assembly includes a pulverizing disc, an arc-shaped plate, air vents, an upper air duct, a lower air duct, and a pressurizing fan. The pulverizing disc is located in the middle of the frame. An arc-shaped plate is provided between the upper and lower inner walls of the pulverizing disc. The outer arc surface of the arc-shaped plate has evenly distributed air vents. The upper air duct is located at the feed inlet in the middle of the upper side wall of the pulverizing disc. The lower air duct is located at the air inlet at the right end of the lower side wall of the pulverizing disc. A pressurizing fan is connected in series at the left end of both the upper and lower air ducts. The input end of the pressurizing fan is electrically connected to the output end of the control switch group to facilitate pulverization.

[0010] Furthermore, the pulverizing assembly also includes a conveying pipe, and the secondary dust collection assembly includes a bag filter housing, a bag frame, a sealing groove, and a rubber sealing ring. The bag filter housing is located at the right end of the frame, and the pulverizing disc is connected to the bag filter housing via the conveying pipe. The primary dust collection pipe is connected in series in the middle of the conveying pipe. The inner arc surface of the bag filter housing is provided with a sealing groove, and the outer arc surface of the bag frame is provided with a rubber sealing ring. The rubber sealing ring is slidably connected to the sealing groove for rotational support and sealing.

[0011] Furthermore, the secondary dust collection assembly also includes a rotating shaft, a ratchet, a pawl, a mounting shaft, and a rotating disk. The rotating shaft is fixedly connected to the center of the upper side of the bag frame. The outer arc surface of the upper end of the rotating shaft is rotatably connected to the through hole in the middle of the top wall of the bag dust collector shell through a sealed bearing. The upper end of the rotating shaft is provided with a ratchet. The upper side of the bag dust collector shell is provided with a protective cover. The top wall of the protective cover is rotatably connected to the rotating disk through the rotating shaft. The lower side of the rotating disk is rotatably connected to a pawl through the mounting shaft. The pawl is configured to cooperate with the ratchet. A torsion spring is provided between the pawl and the lower side of the rotating disk. The torsion spring is sleeved on the outer arc surface of the mounting shaft. A motor is mounted on the upper side of the protective cover. The output shaft of the motor is fixedly connected to the center of the upper end face of the rotating shaft. The input end of the motor is electrically connected to the output end of the control switch group to facilitate the rotation of the bag frame.

[0012] Furthermore, the dust collection assembly also includes an intermittent frame, insertion holes, and pins. The intermittent frame is located on the upper side of the bag filter housing. The upper side of the intermittent frame has evenly distributed insertion holes. The lower ends of the pins are all inserted into the adjacent insertion holes on the lower side. The pins are all configured to cooperate with pawls to facilitate adjustment of the frequency of intermittent rotation.

[0013] Furthermore, an exhaust pipe is provided at the exhaust port on the upper part of the outer arc surface of the bag dust collector shell. A fan is connected in series at the lower end of the exhaust pipe. The input end of the fan is electrically connected to the output end of the control switch group for exhaust.

[0014] Furthermore, a second collection chamber is provided on the lower side of the discharge pipe at the lower end of the bag filter housing for collection.

[0015] Furthermore, a feed hopper is connected in series at the right end of the upper air duct. The upper end of the feed hopper and the lower end of the feed hopper are connected by an electric screw conveyor pipe. The input end of the electric screw conveyor pipe is electrically connected to the output end of the control switch group to facilitate feeding.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This yam powder processing raw material pulverizer has the following advantages:

[0017] By employing the rotating blades of the primary dust collection pipe and the intermittent rotating bag cleaning design of the secondary dust collection component, particles of different sizes can be effectively separated. The primary dust collection pipe pre-separates large particles and collects them into the first collection chamber. The secondary dust collection component intercepts fine powder through the filter bags and utilizes an intermittent transmission structure consisting of a motor, ratchet, pawl, and pin to periodically shake and clean the filter bag frame. The dust falls into the second collection chamber, which not only avoids filter bag clogging affecting dust removal efficiency but also allows for flexible control of the cleaning frequency by adjusting the pin position to adapt to different dust levels. At the same time, the rubber sealing ring and sealing groove work together to ensure the sealing of the dust removal process, ultimately achieving efficient graded dust collection and stable airflow purification. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0020] Figure 3 This is a partial structural diagram of the pulverizing disc of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the crushing disc of this utility model.

[0022] Figure 5 This is a partial structural schematic diagram of the primary dust collection pipe of this utility model;

[0023] Figure 6 This is a partial cross-sectional structural schematic diagram of the primary dust collection pipe of this utility model;

[0024] Figure 7 This is a partial cross-sectional structural diagram of the outer shell of the bag filter of this utility model;

[0025] Figure 8 This is an enlarged structural schematic diagram of point A of this utility model;

[0026] Figure 9 This is an enlarged structural schematic diagram of section B of this utility model.

[0027] In the diagram: 1. Frame; 2. Dust collection assembly; 21. Primary dust collection pipe; 22. Mounting slot; 23. Rotating frame; 24. Blade; 25. Secondary dust collection assembly; 251. Bag filter housing; 252. Bag frame; 253. Sealing slot; 254. Rubber sealing ring; 255. Rotating shaft; 256. Ratchet; 257. Pad; 258. Mounting shaft; 259. Rotary disc; 26. Intermittent frame; 27. Insertion hole; 28. Pin; 3. Crushing assembly; 31. Crushing disc; 32. Arc plate; 33. Air hole; 34. Upper air duct; 35. Lower air duct; 36. Conveying pipe; 37. Pressurizing fan; 4. First collection bin; 5. Second collection bin; 6. Hopper; 7. Electric screw conveyor pipe; 8. Feed hopper; 9. Control switch group; 10. Connecting pipe; 11. Exhaust pipe; 12. Fan; 13. Torsion spring; 14. Motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-9This embodiment provides a technical solution: a yam powder processing raw material crusher, including a frame 1. A control switch group 9 is provided at the left end of the frame 1. The input end of the control switch group 9 is electrically connected to an external power source. A crushing assembly 3 is provided inside the frame 1. The crushing assembly 3 includes a crushing disc 31, an arc-shaped plate 32, air vents 33, an upper air duct 34, a lower air duct 35, and a pressurizing fan 37. The crushing disc 31 is located in the middle of the frame 1. An arc-shaped plate 32 is provided between the upper and lower inner walls of the crushing disc 31. The outer arc surface of the arc-shaped plate 32 has an opening... The upper air duct 34 is located at the feed inlet in the middle of the upper side wall of the crushing disc 31, and the lower air duct 35 is located at the air inlet at the right end of the lower side wall of the crushing disc 31. A pressure blower 37 is connected in series at the left end of both the upper and lower air ducts 34 and 35. The input end of the pressure blower 37 is electrically connected to the output end of the control switch group 9. A hopper 6 is located at the upper part of the interior of the frame 1. The hopper 6 is configured to cooperate with the crushing assembly 3. A feed hopper 8 is connected in series at the right end of the upper air duct 34. The upper end of the feed hopper 8 and the lower end of the hopper 6 are connected by an electric... The electric screw conveyor pipe 7 is connected to the control switch group 9. The input end of the electric screw conveyor pipe 7 is electrically connected to the output end of the control switch group 9. The yam raw material enters the electric screw conveyor pipe 7 through the hopper 6. After being started by the control switch group 9, it is quantitatively conveyed to the feed hopper 8, and then sent into the feed inlet in the middle of the crushing disc 31 through the upper air pipe 34. It enters the space surrounded by the arc plate 32. The pressure blower 37 delivers high-pressure airflow into the crushing disc 31 through the upper air pipe 34 and the lower air pipe 35: the upper air pipe 34 accelerates the introduction of materials and provides downward impact force, and the lower air pipe 35 delivers high-pressure airflow from the bottom. Air is supplied from the right side, and the airflow enters the space through the air hole 33. The material is blocked by the arc plate 32 and circulates under the drive of the high-speed airflow. The particles are crushed by mutual impact, collision and friction with each other and with the inner wall of the arc plate. Due to the jet angle between the airflow and the center of the space, a strong vortex is formed. The particles are subjected to centrifugal force and airflow force in the vortex field. When the centrifugal force is equal to the airflow force, the particles larger than the separation boundary particle size continue to be crushed, and the particles smaller than the particle size enter the conveying pipe 36 with the airflow, which facilitates the crushing of yam. It also includes a dust collection component 2.

[0030] Dust collection assembly 2 includes a primary dust collection pipe 21, a mounting groove 22, a rotating frame 23, blades 24, and a secondary dust collection assembly 25. The primary dust collection pipe 21 is located at the right end of the crushing assembly 3 and is configured to cooperate with the crushing assembly 3. The mounting groove 22 is located in the middle of the primary dust collection pipe 21, and the rotating frame 23 is rotatably connected to the top wall of the mounting groove 22. Blades 24 are evenly distributed between the upper and lower inner walls of the rotating frame 23. The secondary dust collection assembly 25 is located on the right side of the primary dust collection pipe 21 and is configured to cooperate with the primary dust collection pipe 21. The crushing assembly 3 also includes a conveying pipe 36. The secondary dust collection assembly 25 includes a bag filter housing 251, a bag frame 252, a sealing groove 253, and a rubber sealing ring 254. The bag filter housing 251 is located at the right end of the frame 1. The crushing disc 31 is connected to the bag filter housing 251 via a conveying pipe 36. The primary dust collection pipe 21 is connected in series in the middle of the conveying pipe 36. The inner arc surface of the bag filter housing 251 is provided with a sealing groove 253, and the outer arc surface of the bag frame 252 is provided with a rubber sealing ring 254 (the right end of the bag filter housing 251 is provided with a replacement pipe, and the right end of the replacement pipe is threaded with a replacement door. After unscrewing the replacement door, the worker can install the bags on the bag frame 252 respectively). The rubber sealing ring 254 is slidably connected to the sealing groove 253. The secondary dust collection assembly 25 also includes a rotating shaft 255, a ratchet 256, a pawl 257, a mounting shaft 258, and a rotating disc 259. Shaft 255 is fixedly connected to the center of the upper side of the bag frame 252. The outer arc surface of the upper end of the shaft 255 is rotatably connected to the through hole in the middle of the top wall of the bag dust collector housing 251 through a sealed bearing. The upper end of the shaft 255 is provided with a ratchet 256. The upper side of the bag dust collector housing 251 is provided with a protective cover (the top wall of the protective cover is hinged to an adjusting door, and a door lock is provided at the joint between the adjusting door and the protective cover; the door lock is a conventional closed lock). The top wall of the protective cover is rotatably connected to a rotating disk 259 through a rotating shaft. The lower side of the rotating disk 259 is rotatably connected to a pawl 257 through a mounting shaft 258. The pawl 257 is configured to cooperate with the ratchet 256. A torsion spring 13 is provided between the pawl 257 and the lower side of the rotating disk 259. The torsion spring 13 is sleeved on the mounting shaft 258. A motor 14 is mounted on the upper side of the protective cover on the outer arc surface of shaft 258. The output shaft of motor 14 is fixedly connected to the center of the upper end face of the rotating shaft. The input end of motor 14 is electrically connected to the output end of control switch group 9. The dust collection assembly 2 also includes an intermittent frame 26, insertion holes 27, and pins 28. The intermittent frame 26 is located on the upper side of the bag filter housing 251. The upper side of the intermittent frame 26 has evenly distributed insertion holes 27. The lower ends of the pins 28 are all inserted into the adjacent insertion holes 27 on the lower side. The pins 28 are all configured to cooperate with the pawls 257. An exhaust pipe 11 is provided at the exhaust port at the upper end of the outer arc surface of the bag filter housing 251. A fan 12 is connected in series at the lower end of the exhaust pipe 11. The input end of the fan 12 is electrically connected to the output end of control switch group 9.The lower side of the discharge pipe at the lower end of the bag filter housing 251 is provided with a second collection chamber 5. The upper side walls of the first collection chamber 4 and the second collection chamber 5 are threaded with exhaust pipes. The exhaust pipes are equipped with filters. After the first collection chamber 4 and the second collection chamber 5 are full, the exhaust pipes are unscrewed, the external collection pipe is inserted into the opening, and the collection pump is started to pump the yam powder out of the first collection chamber 4 and the second collection chamber 5. The lower side of the primary dust collection pipe 21 is provided with a first collection chamber 4. The first collection chamber 4 and the primary dust collection pipe 21 are connected by a connecting pipe 10. After the airflow containing particles enters the primary dust collection pipe 21, the airflow drives the rotating frame 23 to rotate the blades 24, stirring and dispersing the agglomerated particles and screening them through the gaps between the blades 24: larger particles are thrown towards the inner wall of the mounting groove 22 and fall into the first collection chamber 4 through the connecting pipe 10; smaller particles are carried by the airflow. The airflow enters the outer casing 251 of the bag filter and forms a high-speed swirling flow under the action of the fan 12. The motor 14 drives the rotating disk 259 to rotate, which in turn drives the rotating shaft 255 and the bag frame 252 to rotate through the engagement of the pawl 257 and the ratchet 256. During the rotation, the tail of the pawl 257 contacts the pin 28 and is obstructed, causing it to rotate in the opposite direction around the mounting shaft 258 and compress the torsion spring 13, thus disengaging from the ratchet 256. The bag frame 252 then stops rotating and disengages from the pin 28. After being blocked, the torsion spring 13 returns to its original position, and the pawl 257 re-engages the ratchet 256, causing the bag frame 252 to rotate intermittently. As the bag frame 252 rotates, the dust trapped in the filter bags is dislodged due to centrifugal force and falls into the second collection chamber 5 through the discharge pipe. Larger particles impact the inner wall of the filter dust collector housing 251 and fall back, also being collected by the second collection chamber 5. Fine powder meeting the requirements is intercepted by the filter bags, and the clean airflow is discharged through the exhaust pipe 11 and the fan 12, achieving efficient dust removal.

[0031] The working principle of the yam powder processing raw material crusher provided by this utility model is as follows: Yam raw materials enter the electric screw conveyor pipe 7 through the hopper 6. The electric screw conveyor pipe 7 is started by the control switch group 9, and the material is quantitatively conveyed to the feed hopper 8. Then, it is sent into the feed inlet in the middle of the crushing disc 31 through the upper air pipe 34, thus entering the space surrounded by the arc plate 32 inside the crushing disc 31. The pressure blower 37 delivers high-pressure airflow into the crushing disc 31 through the upper air pipe 34 and the lower air pipe 35. The upper air pipe 34 accelerates the material into the crushing disc 31 and provides a downward airflow impact force. The lower air pipe 35 sends airflow from the bottom right side of the crushing disc 31 and enters the space surrounded by the arc plate 32 through the air hole 33 on the arc plate 32. The yam raw material crushing disc 31 is blocked by the arc plate 32. The high-speed jet of air drives the material to circulate. The particles impact, collide and rub against each other and the inner wall of the fixed arc plate 32, thereby realizing the crushing of the yam raw materials. Because there is a jet angle between the airflow and the center of the space surrounded by the arc plate 32, a strong vortex is formed in the space surrounded by the arc plate 32. The crushed particles move in the vortex field and obtain a large centrifugal force. At the same time, they are also subjected to the force of the airflow being discharged towards the center of the space surrounded by the arc plate 32. When the particles reach a certain particle size, their centrifugal force is equal to the force of the airflow. This particle size is the separation boundary particle size. Particles larger than this particle size continue to be crushed in the space surrounded by the arc plate 32. Particles smaller than this particle size are fed into the conveying pipe 36 by the gas through the feed port and then pass through the primary dust collection pipe 21 with the airflow. The rotating frame 23 in the middle of the primary dust collection pipe 21 drives the blades 24 to rotate under the push of the airflow, which stirs the passing particles, further disperses the agglomerated particles, and filters out larger particles through the gaps between the blades 24. The larger particles are thrown by the blades 24 to the inner wall of the mounting groove 22 and then fall into the first collection chamber 4 through the connecting pipe 10.Smaller particles continue to move to the right with the airflow, while finer particles enter the outer casing 251 of the bag filter. Under the action of the fan 12, they form a high-speed vortex. After the motor 14 starts, the rotating disk 259 drives the pawl 257 to rotate around the axis of rotation at a constant angular velocity. At this time, the pawl 257 engages with the ratchet 256, thereby driving the rotating shaft 255 and the bag frame 252 to rotate synchronously. During the rotation of the pawl 257 driven by the rotating disk 259, the tail of the pawl 257 contacts the pin 28 (the end of the pawl 257 that is away from the center of the rotating disk 259 is considered the tail of the pawl 257). Under the resistance of the pin 28, the pawl 257 is forced to rotate around the mounting... When shaft 258 rotates in the reverse direction, pawl 257 temporarily disengages from ratchet 256. At this time, torsion spring 13 is compressed, storing elastic potential energy. After pawl 257 disengages, rotating disk 259 continues to rotate, but no longer drives ratchet 256 and shaft 255 to rotate. Bag holder 252 stops rotating, and the tail of pawl 257 disengages from pin 28. Torsion spring 13 releases elastic potential energy, pushing pawl 257 to swing back to its original position. Pawl 257 re-engages with the next tooth of ratchet 256. The time it takes for rotating disk 259 to rotate from one pin 28 position to the next pin 28 position is the stationary time of bag holder 252. This time is determined by the rotation of rotating disk 259. The speed and the spacing of the pins 28 together determine that each time the pawl 257 collides with the pin 28, the ratchet 256 rotates only one tooth pitch. This angle is determined by the circumferential distribution density of the insertion holes 27 on the intermittent frame 26 (e.g., if the insertion holes 27 are evenly distributed in 8 places, then each rotation is 45°). After opening the adjustment door, the worker can reach inside the protective cover to change the insertion hole position of the pins 28 on the intermittent frame 26, thus adjusting the rotation angle of the bag filter 252 each time, such as from 15° to 30°, to adapt to different dust removal frequency requirements. For example, when the dust volume is large, the spacing of the pins 28 is reduced to increase the number of insertion holes 27, thus reducing the rotation angle of the bag filter 252 each time and increasing the dust removal frequency. To improve dust removal efficiency, the fan 12 continuously operates while the bag filter 252 rotates for cleaning, ensuring uninterrupted dust removal. Intermittent rotation alternates between filtration and cleaning states for the filter bags on the bag filter 252, preventing pressure drop due to dust blockage and maintaining stable dust removal efficiency. The rubber sealing ring 254 engages with the sealing groove 253 to ensure the airtightness of the bag filter 252 installation, preventing leakage of unfiltered airflow. Clean airflow is then discharged from the equipment via the exhaust pipe 11 and the fan 12. As the bag filter 252 rotates, the filter bags vibrate due to centrifugal force, causing the trapped dust to fall off and fall into the second collection chamber 5 through the discharge pipe at the lower end of the bag filter housing 251.

[0032] It is worth noting that the pressurizing blower 37 disclosed in the above embodiments can be a GRK-D series high-pressure centrifugal blower, the electric screw conveyor pipe 7 can be a traditional electric screw conveyor pipe, the blower 12 can be a T35 series axial flow blower, the motor 14 can be an ECMA series AC servo motor, and the control switch group 9 is equipped with control buttons that correspond one-to-one with the pressurizing blower 37, the electric screw conveyor pipe 7, the blower 12 and the motor 14 and are used to control their switching.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A yam powder processing raw material crusher, comprising a frame (1), wherein a crushing component (3) is provided inside the frame (1), and a hopper (6) is provided at the upper end of the inside of the frame (1), the hopper (6) being configured in conjunction with the crushing component (3), characterized in that: It also includes a dust collection component (2); Dust collection assembly (2): It includes a primary dust collection pipe (21), a mounting groove (22), a rotating frame (23), blades (24), and a secondary dust collection assembly (25). The primary dust collection pipe (21) is located at the right end of the crushing assembly (3). The primary dust collection pipe (21) is configured to cooperate with the crushing assembly (3). The mounting groove (22) is provided in the middle of the primary dust collection pipe (21). The rotating frame (23) is rotatably connected to the top wall of the mounting groove (22). Blades (24) are evenly distributed between the upper and lower inner walls of the rotating frame (23). The secondary dust collection assembly (25) is located on the right side of the primary dust collection pipe (21). The secondary dust collection assembly (25) is configured to cooperate with the primary dust collection pipe (21). A first collection chamber (4) is provided on the lower side of the primary dust collection pipe (21). The first collection chamber (4) is connected to the primary dust collection pipe (21) through a connecting pipe (10).

2. The yam powder processing raw material pulverizer according to claim 1, characterized in that: The left end of the frame (1) is provided with a control switch group (9), and the input end of the control switch group (9) is electrically connected to an external power source.

3. The yam powder processing raw material pulverizer according to claim 2, characterized in that: The crushing assembly (3) includes a crushing disc (31), an arc plate (32), air holes (33), an upper air duct (34), a lower air duct (35), and a pressurizing fan (37). The crushing disc (31) is located in the middle of the frame (1). An arc plate (32) is provided between the upper and lower inner walls of the crushing disc (31). The outer arc surface of the arc plate (32) is provided with evenly distributed air holes (33). The upper air duct (34) is located at the feed inlet in the middle of the upper side wall of the crushing disc (31). The lower air duct (35) is located at the air inlet at the right end of the lower side wall of the crushing disc (31). The left ends of the upper air duct (34) and the lower air duct (35) are connected in series with a pressurizing fan (37). The input end of the pressurizing fan (37) is electrically connected to the output end of the control switch group (9).

4. The yam powder processing raw material pulverizer according to claim 3, characterized in that: The pulverizing assembly (3) also includes a conveying pipe (36). The secondary dust collection assembly (25) includes a bag filter housing (251), a bag frame (252), a sealing groove (253), and a rubber sealing ring (254). The bag filter housing (251) is located at the right end of the frame (1). The pulverizing disc (31) is connected to the bag filter housing (251) through the conveying pipe (36). The primary dust collection pipe (21) is connected in series in the middle of the conveying pipe (36). The inner arc surface of the bag filter housing (251) is provided with a sealing groove (253). The outer arc surface of the bag frame (252) is provided with a rubber sealing ring (254). The rubber sealing ring (254) is slidably connected to the sealing groove (253).

5. A yam powder processing raw material pulverizer according to claim 4, characterized in that: The secondary dust collection assembly (25) further includes a rotating shaft (255), a ratchet (256), a pawl (257), a mounting shaft (258), and a rotating disk (259). The rotating shaft (255) is fixedly connected to the center of the upper side of the bag frame (252). The outer arc surface of the upper end of the rotating shaft (255) is rotatably connected to the through hole in the middle of the top wall of the bag dust collector housing (251) through a sealed bearing. The upper end of the rotating shaft (255) is provided with a ratchet (256). The upper side of the bag dust collector housing (251) is provided with a protective cover. The top wall of the protective cover is rotatably connected to the rotating shaft. There is a rotating disk (259), and a pawl (257) is rotatably connected to the lower side of the rotating disk (259) via a mounting shaft (258). The pawl (257) is configured to cooperate with a ratchet (256). A torsion spring (13) is provided between the pawl (257) and the lower side of the rotating disk (259). The torsion spring (13) is sleeved on the outer arc surface of the mounting shaft (258). A motor (14) is installed on the upper side of the protective cover. The output shaft of the motor (14) is fixedly connected to the center of the upper end face of the rotating shaft. The input end of the motor (14) is electrically connected to the output end of the control switch group (9).

6. The yam powder processing raw material pulverizer according to claim 5, characterized in that: The dust collection assembly (2) also includes an intermittent frame (26), insertion holes (27) and pins (28). The intermittent frame (26) is disposed on the upper side of the bag filter housing (251). The upper side of the intermittent frame (26) is provided with evenly distributed insertion holes (27). The lower ends of the pins (28) are all inserted into the adjacent insertion holes (27) on the lower side. The pins (28) are all configured to cooperate with the pawls (257).

7. A yam powder processing raw material pulverizer according to claim 4, characterized in that: An exhaust pipe (11) is provided at the exhaust port on the upper part of the outer arc surface of the bag dust collector shell (251). A fan (12) is connected in series at the lower end of the exhaust pipe (11). The input end of the fan (12) is electrically connected to the output end of the control switch group (9).

8. A yam powder processing raw material pulverizer according to claim 4, characterized in that: The lower side of the discharge pipe at the lower end of the outer shell (251) of the bag filter is provided with a second collection chamber (5).

9. A yam powder processing raw material pulverizer according to claim 3, characterized in that: The upper air duct (34) is connected in series with a feed hopper (8) at the right end. The upper end of the feed hopper (8) and the lower end of the hopper (6) are connected by an electric screw conveyor pipe (7). The input end of the electric screw conveyor pipe (7) is electrically connected to the output end of the control switch group (9).

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