A cooling and screw conveyor integrated machine

Abstract

This invention relates to the field of screw conveyor equipment, and more particularly to an integrated cooling and screw conveying machine. The invention provides such an integrated cooling and screw conveying machine, including a mounting frame and a conveying cylinder; the mounting frame connects to the conveying cylinder. A rotary drive mechanism drives the screw conveyor plate of the conveying cylinder to rotate and transport the material. Cold airflow ejected from the air outlet of the screw conveyor plate cools and dries the powder conveyed in the conveying cylinder. Large-sized powder adhering to the inner wall of the conveying cylinder and the outer surface of the screw conveyor plate is cooled and dried by the cold airflow, and then continuously cools and shrinks as it moves with the screw conveyor plate, breaking into smaller-sized powder. This solves the technical problems of screw conveyors not only affecting the conveying efficiency of conveying moist sodium sulfate powder, but also the high difficulty of cleaning the screw conveyor plate and the waste of sodium sulfate powder.

Description

Technical Field

[0001] This invention relates to the field of screw conveyor equipment, and more particularly to an integrated cooling and screw conveyor machine. Background Technology

[0002] In chemical production and processing, a screw conveyor is used to transport sodium sulfate, a byproduct of distillation equipment, to a cooling drum. The cooling drum cools the powdered sodium sulfate material, reducing its temperature to obtain the final sodium sulfate product.

[0003] However, during the conveying of sodium sulfate powder via a screw conveyor, the sodium sulfate powder is in a high-temperature and humid state, and a large amount of moisture remains on it. This causes a large amount of powder to adhere to the screw conveyor plate, preventing the screw conveyor plate with powder adhering to it from directly contacting the subsequently conveyed sodium sulfate powder. This not only affects the conveying efficiency of the screw conveyor plate, but also makes the subsequent cleaning of the screw conveyor plate difficult after the sodium sulfate powder dries and clumps on the screw conveyor plate for a long time, resulting in a significant waste of sodium sulfate powder. Summary of the Invention

[0004] To overcome the drawbacks of screw conveyors in conveying moist sodium sulfate powder, such as reduced conveying efficiency, difficulty in cleaning the screw conveyor plates, and waste of sodium sulfate powder, this invention provides an integrated cooling and screw conveyor machine.

[0005] This invention describes an integrated cooling and spiral conveying machine, comprising a mounting frame, a conveying cylinder, a rotary drive mechanism, a feed hopper, a discharge hopper, a spiral conveying plate, a liquid conveying mechanism, and an air conveying mechanism. The conveying cylinder is rotatably connected to the mounting frame. A rotary drive mechanism for rotating the conveying cylinder is mounted on the mounting frame. A feed hopper is mounted on the mounting frame and rotatably connected to the right inlet end of the conveying cylinder. A discharge hopper is mounted on the mounting frame and rotatably connected to the left outlet end of the conveying cylinder. A spiral conveying plate is fixed to the inner wall of the conveying cylinder. A spiral ventilation cavity structure is formed on the inner side of the spiral conveying plate. A spiral liquid-cooled pipe is fixedly connected inside the spiral ventilation cavity of the spiral conveying plate. Several air outlet holes communicating with the spiral ventilation cavity are formed on the right side of the spiral conveying plate. A liquid conveying mechanism for supplying circulating coolant to the liquid-cooled pipe is mounted on the mounting frame. An air conveying mechanism for supplying airflow to the spiral ventilation cavity is mounted on the mounting frame.

[0006] Furthermore, it is particularly preferred that the right side of the spiral conveyor plate is provided with a baffle structure to block each air outlet, and the baffle is configured with a spiral structure adapted to the spiral conveyor plate.

[0007] Furthermore, it is particularly preferred that the left side of the spiral conveyor plate is configured as an arc-shaped air intake plate with a central depression to the right.

[0008] Furthermore, it is particularly preferred that a stirring plate is fixedly attached to the outer surface of the spiral conveyor plate.

[0009] Furthermore, it is particularly preferred that the infusion mechanism includes annular infusion plates and drainage tubes; annular infusion plates are rotatably connected to the left and right sides of the outer surface of the delivery cylinder; both annular infusion plates are fixedly mounted on a mounting bracket; an infusion chamber structure is formed between the two annular infusion plates and the outer surface of the delivery cylinder; a drainage tube is connected to the left and right ends of the liquid cooling pipe; and the two drainage tubes are respectively connected to a corresponding infusion chamber.

[0010] Furthermore, it is particularly preferred that the air conveying mechanism includes an annular air conveying plate, an air conveying pipe, and a blower; the annular air conveying plate is rotatably connected to the outer surface of the conveying cylinder; the annular air conveying plate is fixedly mounted on a mounting frame; an air conveying cavity structure is formed between the annular air conveying plate and the outer surface of the conveying cylinder; a blower is fixedly mounted on the mounting frame; the air outlet of the blower is connected to the air conveying cavity inside the annular air conveying plate through a pipe; and the air inlet at the right end of the spiral ventilation cavity of the spiral conveying plate is connected to the air conveying cavity through an air conveying pipe.

[0011] Furthermore, it is particularly preferred that the rotary drive mechanism includes a gear ring, a first motor, and a drive gear; the gear ring is fixedly connected to the outer surface of the conveying cylinder; the first motor is fixedly connected to the mounting bracket; the output shaft of the first motor is fixedly connected to the drive gear; and the drive gear meshes with the gear ring.

[0012] In addition, it is particularly preferred that a filter screen is installed on the discharge hopper.

[0013] Furthermore, it is particularly preferred that a rotating shaft is rotatably connected to the discharge hopper; a second motor is fixedly connected to the discharge hopper; the output shaft of the second motor is fixedly connected to the rotating shaft; and a plurality of scrapers are fixedly connected to the outer surface of the rotating shaft.

[0014] Furthermore, it is particularly preferred that the conveying cylinder is rotatably connected to the suction cylinder; the outer surface of the suction cylinder is provided with a suction groove structure; the right end of the rotating shaft is rotatably connected to the suction cylinder; a spiral propeller is fixed to the outer surface of the rotating shaft, and the spiral propeller is located inside the suction cylinder.

[0015] This invention describes an integrated cooling and screw conveyor machine. A rotary drive mechanism drives the conveying cylinder and its internal screw conveyor plate to rotate. The screw conveyor plate is provided with a screw ventilation cavity, and a liquid cooling pipe is provided inside the screw ventilation cavity. An air outlet is opened on the screw conveyor plate to connect to the screw ventilation cavity. While the liquid conveying mechanism delivers circulating coolant to the liquid cooling pipe, the air conveying mechanism delivers airflow to the screw ventilation cavity. After being cooled by the liquid cooling pipe, the airflow in the screw ventilation cavity is sprayed out from the air outlet. The sprayed cold airflow cools and dries the powder conveyed by the conveying cylinder. Large-sized powder adhering to the inner wall of the conveying cylinder and the outer surface of the screw conveyor plate is cooled and dried by the cold airflow. As it moves with the screw conveyor plate, it continuously cools and shrinks, breaking into smaller-sized powder.

[0016] This invention solves the technical problems of conveying wet sodium sulfate powder by screw conveyors, which not only affect the conveying efficiency but also make cleaning the screw conveyor plates difficult and lead to waste of sodium sulfate powder. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram illustrating the present invention according to an embodiment;

[0018] Figure 2 A cross-sectional view of the conveyor cylinder according to an embodiment of the present invention;

[0019] Figure 3 The following is a cross-sectional view illustrating the delivery cylinder, annular infusion plate, and annular air delivery plate of the present invention according to embodiments;

[0020] Figure 4 This is a schematic diagram illustrating a first partial three-dimensional structure of the spiral conveyor plate of the present invention according to an embodiment;

[0021] Figure 5 This is a schematic diagram illustrating a second partial three-dimensional structure of the spiral conveyor plate of the present invention according to an embodiment;

[0022] Figure 6 This is a cross-sectional view of the discharge hopper of the present invention, described according to an embodiment;

[0023] Figure 7 This is a cross-sectional view of the suction duct of the present invention according to an embodiment.

[0024] Reference numerals: 1-Mounting frame, 2-Conveying cylinder, 21-Gear ring, 22-First motor, 23-Drive gear, 3-Feed hopper, 4-Discharge hopper, 41-Filter screen, 5-Spiral conveying plate, 50-Spiral ventilation cavity, 501-Air outlet, 502-Baffle plate, 503-Air guide plate, 51-Liquid cooling pipe, 52-Stirring plate, 6-Annular infusion plate, 60-Infusion cavity, 61-Drainage pipe, 7-Annular air conveying plate, 70-Air conveying cavity, 71-Air conveying pipe, 72-Blower, 81-Rotating shaft, 82-Second motor, 83-Scraper, 9-Suction cylinder, 90-Suction trough, 91-Spiral air impeller. Detailed Implementation

[0025] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0026] Example 1

[0027] A cooling and screw conveyor integrated machine, such as Figures 1-6As shown, the system includes a mounting frame 1, a conveying cylinder 2, a rotary drive mechanism, a feed hopper 3, a discharge hopper 4, a spiral conveying plate 5, a liquid conveying mechanism, and an air conveying mechanism. The conveying cylinder 2 is rotatably connected to the mounting frame 1. A rotary drive mechanism is mounted on the mounting frame 1 and connected to the conveying cylinder 2. A feed hopper 3 is mounted on the right side of the mounting frame 1 and rotatably connected to the right inlet end of the conveying cylinder 2. A discharge hopper 4 is mounted on the left side of the mounting frame 1 and rotatably connected to the left outlet end of the conveying cylinder 2. A spiral conveying plate 5 is bolted to the inner wall of the conveying cylinder 2. A spiral ventilation cavity 50 is formed on the inner side of the spiral conveying plate 5. A spiral liquid-cooled pipe 51 is fixedly connected inside the spiral ventilation cavity 50 of the spiral conveying plate 5. Several air outlet holes 501 connecting to the spiral ventilation cavity 50 are formed on the right side of the spiral conveying plate 5. Several agitators 52 are welded to the outer surface of plate 5 to break up the powder conveyed inside the conveying cylinder 2; a liquid conveying mechanism is installed on the mounting frame 1; the liquid conveying mechanism is connected to the liquid cooling pipe 51; an air conveying mechanism is installed on the mounting frame 1; the air conveying mechanism is connected to the spiral ventilation cavity 50 of the spiral conveying plate 5; while the liquid conveying mechanism conveys circulating coolant to the liquid cooling pipe 51, the air conveying mechanism conveys airflow to the spiral ventilation cavity 50. After being cooled by the liquid cooling pipe 51, the airflow in the spiral ventilation cavity 50 is sprayed out from the air outlet 501 to cool and dry the powder conveyed by the conveying cylinder 2. After the large-sized powder is cooled and dried, it continuously cools and shrinks as it moves along the spiral conveying plate 5 in the conveying cylinder 2, and is easily broken into small-sized powder; a filter screen 41 is installed on the discharge hopper 4, and the large-sized agglomerated powder that has not been completely dried and crushed is intercepted by the filter screen 41.

[0028] like Figure 4 and Figure 5 As shown, the right side of the spiral conveyor plate 5 is provided with a shielding plate 502 structure that blocks each air outlet 501. The shielding plate 502 is configured with a spiral structure adapted to the spiral conveyor plate 5. The airflow blown out from the air outlet 501 is sprayed onto the inner wall of the conveying cylinder 2 under the guidance of the shielding plate 502. The left side of the spiral conveyor plate 5 is configured with an arc-shaped air guide plate 503 that is recessed to the right in the middle. After the airflow blown out from the air outlet 501 is sprayed onto the inner wall of the conveying cylinder 2 under the guidance of the shielding plate 502, it continues to blow to the right onto the adjacent arc-shaped air guide plate 503. The airflow is blown towards the middle of the conveying cylinder 2 and flows to the left as it flows along the outer surface of the air guide plate 503. The dried powder in the conveying cylinder 2 is blown towards the middle of the conveying cylinder 2 and flows to the left with the airflow.

[0029] like Figures 2-4As shown, the infusion mechanism includes annular infusion plates 6 and drainage pipes 61; annular infusion plates 6 are rotatably connected to the left and right sides of the outer surface of the delivery cylinder 2; both annular infusion plates 6 are bolted to mounting brackets 1; an infusion chamber 60 structure is opened between the two annular infusion plates 6 and the outer surface of the delivery cylinder 2; a drainage pipe 61 is connected to the left and right ends of the liquid cooling pipe 51; the two drainage pipes 61 are respectively connected to a corresponding infusion chamber 60; the right annular infusion plate 6 is connected to the outlet end of the external coolant circulation device through a pipe, and the left annular infusion plate 6 is connected to the inlet end of the external coolant circulation device through a pipe. The coolant in the external coolant circulation device flows through the infusion chamber 60 of the right annular infusion plate 6 and the drainage pipe 61 connected thereto into the liquid cooling pipe 51. After flowing along the liquid cooling pipe 51, the coolant flows through the drainage pipe 61 of the left annular infusion plate 6 and the infusion chamber 60 connected thereto, and then flows back to the external coolant circulation device.

[0030] like Figures 1-4 As shown, the air conveying mechanism includes an annular air conveying plate 7, an air conveying pipe 71, and a blower 72; the annular air conveying plate 7 is rotatably connected to the outer surface of the conveying cylinder 2; the annular air conveying plate 7 is bolted to the mounting frame 1; an air conveying cavity 70 structure is formed between the annular air conveying plate 7 and the outer surface of the conveying cylinder 2; the blower 72 is bolted to the mounting frame 1; the air outlet of the blower 72 is connected to the air conveying cavity 70 inside the annular air conveying plate 7 through a pipe; the air inlet at the right end of the spiral ventilation cavity 50 of the spiral conveying plate 5 is connected to the air conveying cavity 70 through the air conveying pipe 71; the blower 72 conveys the airflow to the air conveying cavity 70 through the pipe, and the airflow flowing through the air conveying cavity 70 enters the spiral ventilation cavity 50 of the spiral conveying plate 5 through the air conveying pipe 71, and the airflow is sprayed outward from each air outlet 501.

[0031] like Figure 1 As shown, the rotary drive mechanism includes a gear ring 21, a first motor 22, and a drive gear 23; the gear ring 21 is bolted to the outer surface of the conveying cylinder 2; the first motor 22 is bolted to the mounting bracket 1; the output shaft of the first motor 22 is fixedly connected to the drive gear 23; the drive gear 23 meshes with the gear ring 21.

[0032] The powder cooling and conveying operation of this integrated cooling and screw conveyor:

[0033] During preparation, the right-side annular infusion plate 6 is connected to the outlet of an external coolant circulation device via a pipeline, and the left-side annular infusion plate 6 is connected to the inlet of an external coolant circulation device via a pipeline. The external coolant circulation device delivers coolant into the infusion chamber 60 of the right-side annular infusion plate 6. The coolant then flows back to the external coolant circulation device along the right-side drain pipe 61, the liquid cooling pipe 51, the left-side drain pipe 61, and the infusion chamber 60 of the left-side annular infusion plate 6, thus achieving continuous circulation of coolant through the liquid cooling pipe 51.

[0034] First, the powder to be cooled and conveyed is continuously fed into the conveying cylinder 2 through the feeding hopper 3. At the same time, the output shaft of the first motor 22 drives the drive gear 23 to rotate. The drive gear 23 meshes with the gear ring 21 to drive the conveying cylinder 2 to rotate. During the rotation of the conveying cylinder 2 and the spiral conveying plate 5, the material in the conveying cylinder 2 moves to the lower left and into the discharge hopper 4 as the spiral conveying plate 5 rotates. Small-sized particles pass through the filter screen 41 of the discharge hopper 4 and are discharged outward, while large-sized agglomerated powder is intercepted by the filter screen 41.

[0035] During this process, the external coolant circulation equipment continuously circulates coolant to the liquid cooling pipe 51. At the same time, the blower 72 delivers airflow to the air delivery chamber 70 of the annular air delivery plate 7 through the pipe. After the airflow enters the spiral ventilation chamber 50 of the spiral conveyor plate 5 through the air delivery pipe 71, the airflow forms a cold airflow under the cooling treatment of the liquid cooling pipe 51. The cold airflow is sprayed outward along each air outlet 501 on the spiral conveyor plate 5. The cold airflow sprayed out from the air outlet 501 is guided by the baffle plate 502 and the air guide plate 503 to jointly cool and dry the powder adhering to the inner wall of the conveying cylinder 2 and the outer surface of the spiral conveyor plate 5. As the powder moves with the spiral conveyor plate 5, it continuously cools and shrinks, breaking into small-sized powder. After drying, the powder quickly detaches from the inner wall of the conveying cylinder 2 and the outer surface of the spiral conveyor plate 5, improving the cooling and drying effect of the powder and ensuring that most of the powder can pass through the filter screen 41 and be discharged outward, effectively reducing the powder residue in the conveying cylinder 2.

[0036] The spiral conveyor plate 5 drives the agitator plate 52 to continuously impact the powder on the inner wall of the conveying cylinder 2, improving the effect of crushing the powder into smaller sizes, reducing the phenomenon of powder clumping in the conveying cylinder 2, and improving the cooling and drying efficiency of the powder. At the same time, the cooled and dried small-sized powder flows along the outer surface of the air guide plate 503 with the cold airflow and blows towards the middle of the conveying cylinder 2 and to the left, allowing the cooled and dried powder to actively skip the remaining area on the left side of the spiral conveyor plate 5 and blow directly onto the filter screen 41, accelerating the conveying efficiency of the powder and thus increasing the amount of powder processed in the same time.

[0037] Example 2

[0038] like Figures 1-6 As shown, based on Embodiment 1, the discharge hopper 4 of this embodiment is rotatably connected to a rotating shaft 81; a second motor 82 is bolted to the discharge hopper 4; the output shaft of the second motor 82 is fixedly connected to the rotating shaft 81; and several scrapers 83 are fixedly connected to the outer surface of the rotating shaft 81.

[0039] Cleaning of filter screen 41 of this integrated cooling and screw conveyor:

[0040] As the powder continues to flow to the filter screen 41, a large amount of large-sized clumps of powder will become clogged on the filter screen 41. At this time, the output shaft of the second motor 82 drives the scraper 83 on the rotating shaft 81 to rotate. The scraper 83 breaks up the large-sized clumps of powder intercepted by the filter screen 41, so that the powder clogged on the filter screen 41 can be broken into smaller pieces and discharged out in time.

[0041] Example 3

[0042] like Figures 1-7 As shown, based on embodiment 2, the left middle of the conveying cylinder 2 in this embodiment is rotatably connected to the suction cylinder 9; the outer surface of the suction cylinder 9 is provided with a plurality of suction grooves 90; the right end of the rotating shaft 81 is rotatably connected to the suction cylinder 9; the outer surface of the rotating shaft 81 is fixedly connected to the spiral air propeller 91, the spiral air propeller 91 is located inside the suction cylinder 9, the rotating shaft 81 drives the spiral air propeller 91 to rotate inside the suction cylinder 9, sucking the airflow and powder on the left side of the conveying cylinder 2 into the suction cylinder 9, and then uniformly sending the powder out to the left towards the discharge hopper 4.

[0043] The powder conveying operation of this integrated cooling and screw conveyor:

[0044] As the cold airflow flows to the left along the spiral ventilation cavity 50 of the spiral conveyor plate 5, some of the cold airflow will be ejected from each of the air outlets 501. Therefore, the cold airflow volume ejected from the air outlet 501 on the left side of the spiral conveyor plate 5 is much smaller than that ejected from the air outlet 501 on the right side of the spiral conveyor plate 5. As a result, the cold airflow ejected from the air outlet 501 on the left side of the spiral conveyor plate 5 blows the powder along the outer surface of the air guide plate 503 towards the middle of the conveying cylinder 2, and it is difficult to blow it to the left. At this time, the rotating shaft 81 drives the spiral air impeller 91 to rotate in the suction cylinder 9 and generate suction. When the powder blown by the cold airflow passes through the suction groove 90 of the suction cylinder 9, it will be sucked into the suction cylinder 9 from the suction groove 90. Under the blowing of the spiral air impeller 91, the powder sucked into the suction cylinder 9 will be blown to the left towards the filter screen 41, further improving the conveying efficiency of the powder.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cooling and spiral conveying integrated machine, comprising a mounting frame (1); A conveying cylinder (2) is rotatably connected to the mounting frame (1); The application is characterized in that Further comprising a rotary drive mechanism; a rotary drive mechanism for driving the conveying cylinder (2) to rotate is installed on the mounting frame (1); a feeding hopper (3) is installed on the mounting frame (1); the feeding hopper (3) is rotatably connected to the right inlet end of the conveying cylinder (2); a discharging hopper (4) is installed on the mounting frame (1); the discharging hopper (4) is rotatably connected to the left outlet end of the conveying cylinder (2); a spiral conveying plate (5) is fixedly connected to the inner wall of the conveying cylinder (2); a spiral ventilation cavity (50) structure is formed in the inner side of the spiral conveying plate (5); a spiral structure liquid cooling pipe (51) is fixedly connected inside the spiral ventilation cavity (50) of the spiral conveying plate (5); a plurality of air outlet holes (501) structures connecting the spiral ventilation cavity (50) are formed in the right side of the spiral conveying plate (5); a liquid delivery mechanism for delivering circulating cooling liquid to the liquid cooling pipe (51) is installed on the mounting frame (1); an air delivery mechanism for delivering airflow to the spiral ventilation cavity (50) is installed on the mounting frame (1); A baffle (502) structure shielding each air outlet hole (501) is arranged on the right side surface of the spiral conveying plate (5), and the baffle (502) is arranged in a spiral structure matching the spiral conveying plate (5); The left side surface of the spiral conveying plate (5) is arranged in an air guide plate (503) arc structure with a recessed middle part to the right; A stirring plate (52) is fixedly connected to the outer surface of the spiral conveying plate (5); The liquid delivery mechanism comprises a ring-shaped liquid delivery plate (6); one ring-shaped liquid delivery plate (6) is rotatably connected to the left side and the right side of the outer surface of the conveying cylinder (2); both ring-shaped liquid delivery plates (6) are fixedly connected to the mounting frame (1); a liquid delivery cavity (60) structure is formed between each of the two ring-shaped liquid delivery plates (6) and the outer surface of the conveying cylinder (2); a drainage tube (61) is connected to the left end and the right end of the liquid cooling pipe (51); the two drainage tubes (61) are respectively connected to the corresponding liquid delivery cavity (60); A filter screen (41) is installed on the discharging hopper (4).

2. A cooling and screw conveying unit according to claim 1, characterized in that: The air delivery mechanism comprises a ring-shaped air delivery plate (7); the ring-shaped air delivery plate (7) is rotatably connected to the outer surface of the conveying cylinder (2); the ring-shaped air delivery plate (7) is fixedly connected to the mounting frame (1); a ring-shaped air delivery cavity (70) structure is formed between the ring-shaped air delivery plate (7) and the outer surface of the conveying cylinder (2); a blower (72) is fixedly connected to the mounting frame (1); the air outlet of the blower (72) is connected to the air delivery cavity (70) inside the ring-shaped air delivery plate (7) through a pipeline; an air delivery pipe (71) is connected between the air inlet of the spiral ventilation cavity (50) right end of the spiral conveying plate (5) and the air delivery cavity (70).

3. A cooling and screw conveying unit according to claim 1, characterized in that: The rotary drive mechanism comprises a gear ring (21); the gear ring (21) is fixedly connected to the outer surface of the conveying cylinder (2); a first motor (22) is fixedly connected to the mounting frame (1); a drive gear (23) is fixedly connected to the output shaft of the first motor (22); the drive gear (23) is engaged with the gear ring (21).

4. A cooling and screw conveying unit according to claim 1, characterized in that: A rotating shaft (81) is rotatably connected to the discharge hopper (4); a second motor (82) is fixedly connected to the discharge hopper (4); the output shaft of the second motor (82) is fixedly connected to the rotating shaft (81); the outer surface of the rotating shaft (81) is fixedly connected with a plurality of scrapers (83).

5. A cooling and screw conveying unit according to claim 4, characterized in that: The conveying cylinder (2) is rotatably connected with a suction cylinder (9); a suction groove (90) structure is formed in the outer surface of the suction cylinder (9); the right end of the rotating shaft (81) is rotatably connected with the suction cylinder (9); the outer surface of the rotating shaft (81) is fixedly connected with a spiral wind blade (91), and the spiral wind blade (91) is located in the suction cylinder (9).

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