CN110293064A - A kind of winnowing machine - Google Patents

Abstract

The invention provides a winnowing machine, comprising: a material inlet, a winnowing room and a fan, the winnowing room includes a first winnowing room and a second winnowing room, the connection between the first winnowing room and the second winnowing room There is a winnowing port, the first winnowing chamber and the second winnowing room are connected through the winnowing gate, the fan is installed in the second winnowing room close to the winnowing gate, and the first winnowing room is set at the end away from the winnowing gate There is a first discharge port, and the end of the second winnowing chamber away from the winnowing port is provided with a second discharge port, and the feed port is set at the top of the first winnowing chamber close to the winnowing port; the material enters through the feed port In the first winnowing room, according to the weight of each component in the material, the winnowing suction generated when the fan rotates guides the light material in the material to the second discharge port through the winnowing port, so that the light material is discharged from the second discharge port. The heavy material obtained after winnowing is discharged through the first outlet. The winnowing machine has a simple structure and low manufacturing cost, and can conveniently and quickly separate heavy materials and light materials in materials.

Description

a sorting machine

technical field

The invention relates to the technical field of air separation and separation machinery, in particular to an air separation machine.

Background technique

Wind separators are widely used in industries such as agriculture, chemical industry, graphite, rubber, pharmaceuticals, dyestuffs, oil chemicals, food, building materials, ores, cement, and refractory materials. According to its composition, the winnowing machine is mainly composed of winnowing box, fan and other parts. When the winnowing machine is working, the material enters the winnowing box from the feed port, and then the material is classified and separated by the blowing of the wind wheel and the gravity of the fan, so as to realize the classification and separation of the material. At present, the winnowing machine in the prior art has the problems of complicated structure, high manufacturing cost and inconvenient operation. Therefore, designing a winnowing machine with simple structure, low manufacturing cost and easy operation is the demand of the current market.

Contents of the invention

The object of the present invention is to provide a wind separator to solve the problems of complex structure, high manufacturing cost and difficult operation in the prior art.

The winnowing machine provided by the present invention comprises a material inlet, a winnowing room and a fan, and the winnowing room comprises a first winnowing room and a second winnowing room, and the connection between the first winnowing room and the second winnowing room is provided with The air selection port, the first air selection room and the second air selection room are connected through the air selection port, the fan is installed in the second air selection room near the air selection port, and the end of the first air selection room away from the air selection port is provided with a second A material outlet, the end of the second air selection chamber away from the air selection port is provided with a second material outlet, and the material inlet is arranged at the top of the first air selection chamber near the air selection port;

The material enters the first winnowing room through the inlet, and according to the weight of each component in the material, the winnowing suction generated when the fan rotates guides the light material in the material to the second outlet through the winnowing port, making the light The material is discharged from the second discharge port; the heavy material obtained after winnowing is discharged through the first discharge port.

In one embodiment of the present invention, the air selection suction surface of the fan for generating air selection suction is arranged opposite to the air selection opening, and when the fan rotates, air selection suction is generated at the air selection opening.

In one embodiment of the present invention, a material guide plate is provided at the position corresponding to the bottom of the first winnowing room and the material inlet, one end of the material guide plate is connected with the winnowing mouth, and the other end is connected with the first discharge port, and the material The guide plate is used to lead the heavy material obtained after winnowing to the first outlet.

In one embodiment of the present invention, the material guide plate is arranged obliquely at the bottom of the first air selection chamber, and the inclination angle of the material guide plate is adjustable.

In one embodiment of the present invention, a material baffle plate is provided at the connection between the first wind separation chamber and the second wind separation chamber near the feed inlet.

In one embodiment of the present invention, a fan cavity is provided at one end of the second air selection chamber near the air selection opening, and a fan and a fan motor connected with the fan are placed in the fan cavity.

In one embodiment of the present invention, the winnowing machine further includes a wind regulating device, which is connected with the fan motor and is used to adjust the wind separating suction of the fan.

In one embodiment of the present invention, the winnowing machine also includes a hopper, the hopper is arranged on the top of the first winnowing chamber, the feed inlet is arranged at the bottom of the feed hopper, and the feed hopper communicates with the first winnowing chamber through the feed inlet .

In one embodiment of the present invention, the winnowing machine further includes a material transport device, and the material transport device is used to transport the material to the material inlet.

In one embodiment of the present invention, the winnowing machine further includes a bracket unit for supporting and connecting.

The beneficial effects of the present invention are:

The invention provides a winnowing machine, comprising: a material inlet, a winnowing room and a fan, the winnowing room includes a first winnowing room and a second winnowing room, the connection between the first winnowing room and the second winnowing room There is a winnowing port, the first winnowing chamber and the second winnowing room are connected through the winnowing gate, the fan is installed in the second winnowing room close to the winnowing gate, and the first winnowing room is set at the end away from the winnowing gate There is a first discharge port, and the end of the second winnowing chamber away from the winnowing port is provided with a second discharge port, and the feed port is set at the top of the first winnowing chamber close to the winnowing port; the material enters through the feed port In the first winnowing room, according to the weight of each component in the material, the winnowing suction generated when the fan rotates guides the light material in the material to the second discharge port through the winnowing port, so that the light material is discharged from the second discharge port. The heavy material obtained after winnowing is discharged through the first outlet. The winnowing machine has a simple structure and is easy to operate. It can conveniently and quickly separate the heavy material from the light material in the material, effectively improving work efficiency; furthermore, the winnowing machine has a simple structure and is easy to manufacture, which not only effectively saves The manufacturing cost is reduced, and it is easy to popularize.

Description of drawings

Fig. 1 is the wind separator structure schematic diagram that the embodiment of the present invention provides;

Fig. 2 is the schematic diagram of the three-dimensional structure of the winnowing machine provided by the embodiment of the present invention;

Fig. 3 is another three-dimensional structural schematic diagram of the winnowing machine provided by the embodiment of the present invention;

Fig. 4 is the left side view of winnowing machine shown in Fig. 2 and Fig. 3;

Fig. 5 is a right view of the winnowing machine shown in Fig. 2 and Fig. 3 .

Reference signs:

1: The first winnowing room; 2: The second winnowing room; 3: Material inlet; 4: Hopper; 5: Fan cavity; 6: Fan; 7: Winner; 8: The first outlet; 9: second discharge port; 10: material baffle plate; 11: bracket unit; 12: fan motor; 61: wind selection suction surface of fan; 62: blowing force surface of fan; 13: material guide plate; 14: wind force Adjusting device; 15: a fixed rod.

Detailed ways

The following is a clear and complete description of the technical solutions of the present invention through the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the meanings of the above terms in the present invention in specific situations.

In order to solve the problems of complex structure, high manufacturing cost and difficult operation in the prior art, the invention provides a wind separation machine, which includes a material inlet, a wind separation chamber and a fan, and the wind separation chamber includes a first wind separation chamber. room and the second winnowing room, the first winnowing room and the second winnowing room are connected with a winnowing port, the first winnowing room and the second winnowing room are communicated through the winnowing gate, and the fan is set in the second winnowing room The position of the selection chamber close to the winnowing mouth, the end of the first winnowing room away from the winnowing mouth is provided with a first outlet, the end of the second winnowing room away from the winnowing mouth is provided with a second outlet, and the feed inlet is It is installed on the top of the first winnowing room close to the winnowing port; the material enters the first winnowing room through the feeding port, and according to the weight of each component in the material, the winnowing suction generated when the fan rotates will pass through the winnowing gate. The light material in the material is led to the second discharge port, so that the light material is discharged from the second discharge port; the heavy material obtained after air separation is discharged through the first discharge port. Further, in this embodiment, the air selection suction surface of the fan that generates air selection suction is set opposite to the air selection opening, and when the fan rotates, air selection suction is generated at the air selection opening.

Specifically, referring to Fig. 1, the winnowing machine includes a first winnowing room 1, a second winnowing room 2, an inlet 3, a fan 6, a winnowing mouth 7, a first outlet 8 and a second outlet Material opening 9, this feed inlet 3 is positioned at the position that the top of the first winnowing room 1 is close to the position of the winnowing mouth 7; The selection port 7 is specifically an opening arranged at the junction of the first winnowing room 1 and the second winnowing room 2; 1. A first discharge port 8 is provided at the end far away from the air selection port 7, and a second discharge port 9 is provided at the end of the second air selection chamber 2 far away from the air selection port 7. In the actual use process, fan 6 is rotated, and fan 6 can generate winnowing suction when rotating, because the winnowing suction surface 61 of fan 6 generating winnowing suction is set correspondingly with winnowing port 7, so when fan 6 rotates, The air separation suction is generated at the air selection port 7 by the fan blades, and the air selection suction cooperates with the air selection port 7 to perform wind separation on the materials passing through the air selection port to separate heavy materials and light materials in the materials. Specifically, when the fan 6 is rotating, two wind surfaces will be generated in the front and back spaces of the fan 6, one of which is a suction surface, and the suction surface is specifically the air separation suction that generates air separation suction as shown in Figure 1 surface 61; the other is a blowing surface, and this blowing surface is specifically the blowing force surface 62 that generates blowing as shown in FIG. 1 . That is to say, the fan 6 generates a wind selection suction at the air selection port 7 opposite to the direction of the first air selection chamber 1 , and the air selection suction can guide the light materials in the materials to the second air selection chamber 2 . After the material to be air-selected enters the first air-selection chamber 1 through the feed port 3, according to the weight of each component in the material, the air-selection suction generated when the fan 6 rotates will draw the light material in the material through the air-selection port 7. To the second discharge port 9, the light material is discharged from the second discharge port 9; the heavy material obtained after winnowing is discharged through the first discharge port 8. Further, the specific structure of the winnowing machine provided in this embodiment can be referred to Fig. 2-Fig. 5 . The winnowing machine has simple structure, low manufacturing cost, and can conveniently separate heavy materials and light materials in materials.

Further, referring to Fig. 1, the first discharge port 8 in this embodiment may specifically be an opening arranged on the side wall of the first winnowing chamber 1 opposite to the winnowing opening 7, after winnowing The obtained heavy material can be conveniently discharged through the first discharge port 8 . The first discharge port 8 is arranged on the side wall of the first winnowing chamber 1 opposite to the winnowing port 7, which not only facilitates the discharge of heavy materials, but also allows the discharged heavy materials to be easily accumulated at the first discharge port. 8 Front positions for easy collection and handling by the user. The second discharge port 9 can be an opening arranged on the side wall of the second winnowing chamber 2 and the opposite side of the winnowing port 7, and the blowing surface 62 of the fan blade of the fan 6 is connected to the second discharge port 9. Correspondingly, produce the blowing that blows to this second discharge port 9; The wind that this fan 6 generates and blows to the second discharge port 9 blows the light material that enters the second winnowing chamber 2 through winnowing to the second blowing. The discharge port 9 can easily discharge the light material from the second discharge port 9; further, the second discharge port 9 is arranged on the side wall of the second winnowing chamber 2 opposite to the winnowing port 7 , so that the discharged light materials can be conveniently accumulated at the position in front of the second discharge port 9, which is convenient for users to collect and process. In addition, in this embodiment, the first outlet 8 can also be arranged at the bottom of the first winnowing chamber 1, and the heavy material obtained after winnowing falls to the bottom of the first winnowing chamber 1 due to gravity, and then directly Discharge through the first discharge port 8 arranged at the bottom of the first winnowing chamber 1 . The second outlet 9 can also be arranged at the bottom of the second winnowing chamber 2, and the light material obtained after the winnowing is directly discharged through the second outlet 9 arranged at the bottom of the second winnowing chamber 2.

Further, the bottom of the first winnowing chamber is provided with a material guide plate at the position corresponding to the material inlet, one end of the material guide plate is connected with the winnowing mouth, and the other end is connected with the first discharge port, and the material guide plate is used to displace the wind The heavy material obtained after selection is led to the first discharge port. Specifically, referring to Fig. 1 and Fig. 2, the material guide plate 13 is arranged on the position corresponding to the feed inlet 3 at the bottom of the first air selection chamber 1, and one end of the material guide plate 13 is connected with the air selection port 7, and the other end is connected with the air selection port 7. A discharge port 8 is connected. The material entering the first winnowing chamber 1 through the feed port 3 falls downward due to the action of gravity. In chamber 2, the remaining heavy material continues to fall to the bottom of the first winnowing chamber 1 due to gravity, and falls onto the material guide plate 13, and the material guide plate 13 guides the heavy material to the first discharge port 8.

Further, the material guide plate in this embodiment is arranged obliquely at the bottom of the first air selection chamber, and the inclination angle of the material guide plate can be adjusted. Specifically, please refer to Fig. 1 and Fig. 2, the heavy material falls on the material guide plate 13, for the convenience of leading the heavy material to the first discharge port 8, the material guide plate 13 can be specifically arranged on the first wind Select the inclined board at the bottom of chamber 1. Further, the inclination angle of the material guide plate 13 can be adjusted according to different materials, that is, if the heavy material obtained through winnowing is relatively light or has a shape that is not easy to slide, a larger slope is required to facilitate and quickly Lead the heavy material to the first discharge port 8, then the inclination angle of the material guide plate 13 can be set larger; The heavy material can be led to the first discharge port 8 with a large slope, so the inclination angle of the material guide plate 13 can be set to be smaller. The angle of inclination of the material guide plate 13 is adjustable. Specifically, a plurality of material guide plate placement grooves are set from top to bottom on the side wall of the first winnowing chamber 1 below the winnowing port 7. By selecting different material guide plates, The plate placement groove is used to adjust the inclination angle of the material guide plate 13. The angle of inclination of the material guide plate 13 may be specifically an angle of 20° to 80° with the ground in the extension direction of the second winnowing chamber 2, and the angle of inclination may be determined according to specific circumstances, and the present invention does not specifically limit this .

Further, a baffle plate is provided at the connection between the first wind separation chamber and the second wind separation chamber near the feed inlet. Specifically, in order to prevent the materials entering the first winnowing room from entering the second winnowing room without winnowing, a stopper can be set at the connection between the first winnowing room and the second winnowing room near the feed inlet. plate. Please refer to FIG. 1 , the baffle plate 10 can be specifically arranged above the air selection opening 7 , at a position where the connection between the first air selection chamber 1 and the second air selection chamber 2 is close to the material inlet 3 .

Further, in this embodiment, a fan cavity is provided at the end of the second air selection chamber near the air selection opening, and the fan and the fan motor connected with the fan are placed in the fan cavity. Specifically, please refer to FIG. 1 , a fan chamber 5 is arranged in the second winnowing chamber 2 , and a fan 6 and a fan motor 12 for driving the fan to rotate are arranged in the fan chamber 5 . Specifically, the fan 6 and the fan motor 12 may be fixed in the fan chamber 5 by a fixing member, and the fixing member may specifically be a fixing rod 15 as shown in FIG. 4 .

Further, in this embodiment, the winnowing machine also includes a wind regulating device, which is connected to the fan motor and is used to adjust the fan's winnowing suction; that is, the fan can be adjusted according to the specific weight of light and heavy materials in the material. The size of the wind force, that is, the size of the air separation suction generated by the fan can be adjusted, so that the material separation effect is better. Specifically, referring to Fig. 2 or Fig. 3, the outer wall of the second winnowing chamber 2 is provided with a wind regulating device 14, and the wind regulating device 14 may specifically be arranged on the outer wall of the second winnowing chamber 2 together with the fan motor 12 Corresponding position, the wind power regulating device 14 is connected with the fan motor 12, and is used for controlling the rotational speed of the fan 6 through the fan motor 12, thereby controlling the magnitude of the winnowing suction and blowing force generated by the fan 6. In actual use, if the weight of the heavy material and light material in the material is relatively small, and the weight difference between the heavy material and the light material is not large, then a small winnowing suction is required to separate the heavy material and light material in the material. Separation; if the weight difference between the heavy material and the light material in the material is large, you can choose a larger air separation suction to separate the heavy material from the light material, and when the weight of the heavy material is large enough, the greater the air selection suction, the heavier the material. The degree of separation between material and light material is greater. Specifically, if the winnowing machine is used for removing impurities, the impurities can be removed more cleanly.

Further, in this embodiment, the winnowing machine further includes a hopper, the hopper is arranged on the top of the first winnowing chamber, the feed inlet is arranged at the bottom of the feed hopper, and the feed hopper communicates with the first winnowing chamber through the feed inlet. Specifically, please refer to Fig. 1-Fig. 3, this winnowing machine also comprises feeding hopper 4, and this feeding hopper 4 is arranged on the top of first winnowing room 1, and feed inlet 3 is arranged on the bottom of feeding hopper 4, and this feeding hopper 4 communicates with the first winnowing chamber 1 through the feed port 3 . The feeding hopper 4 is mainly used for containing materials, and the shape of the feeding hopper 4 can be set as trumpet or square, and the specific shape is not specifically limited in the present invention. Preferably, the feeding hopper 4 is trumpet-shaped so that the materials can gather toward the feeding port 3 , that is, the materials can enter the first winnowing chamber 1 through the feeding port 3 more easily. In addition, it should be understood that the material of the hopper can be iron, alloy or other materials, which will not affect the function of the hopper itself. Therefore, this embodiment does not specifically limit the material of the hopper. Furthermore, the input flow rate of materials can be determined according to the working efficiency of winnowing, so as to avoid adverse consequences such as incomplete winnowing and low winnowing efficiency. The specific input flow rate depends on the specific situation, and the present invention does not specifically limit it.

Further, in this embodiment, the winnowing machine further includes a material transport device, which is used to transport the material to the material inlet. Specifically, a material transport device can be provided on the air separator, and the material transport device can be arranged on the air separator near the material inlet 3 for transporting materials to the material inlet 3 . The material transportation device may specifically be a conveyor for conveying materials, and the shape and arrangement of the conveyor are not specifically limited in this embodiment.

Further, in this embodiment, the winnowing machine further includes a bracket unit for supporting and connecting. Specifically, the support unit includes several support struts and support bases, and the support unit supports and connects the entire winnowing machine together. Please refer to Fig. 1-Fig. 3, the winnowing machine in this embodiment also includes a bracket unit 11, and this bracket unit 11 specifically includes the outer periphery of the first winnowing chamber 1 and the second winnowing chamber 2 for supporting the first winnowing chamber. The support bases of the winnowing chamber 1 and the second winnowing chamber 2 also include support struts for supporting the feeding hopper 4 and the like. The winnowing machine can be stably placed on the working surface through the support base, or placed in a place where the winnowing machine needs to be fixed, such as the carriage, and the feeding hopper 4 of the winnowing machine is connected with the winnowing chamber through the support strut. Further, the shape of the bracket strut can be square columnar or cylindrical; the material of the bracket strut can be iron material, or other materials such as alloy; the specific shape of the support rod unit in this embodiment, The structure and material are not specifically limited.

Further, in this embodiment, the hopper 4 and the material transport device can be set at the same time. Concretely, firstly, the material is transported to the hopper 4 through the material transportation device, and the material entering the hopper 4 enters the first winnowing chamber 1 through the feed inlet 3 due to gravity, and the material entering the first winnowing chamber 1 passes through the first winnowing chamber 1. The air selection port 7 provided at the junction of the first air selection chamber 1 and the second air selection chamber 2 is air selected, and the heavy material and light material in the material are separated. Specifically, in an application scenario of the winnowing machine, the materials include light materials such as light plant branches and leaves, and heavy materials such as heavy plant straws or plant seeds. The light material enters the second winnowing chamber 2 under the action of winnowing suction, and then the light materials such as plant branches and leaves are blown to the second winnowing port 9 by the blowing in the second winnowing room 2, so that the plant branches and leaves etc. The light material is discharged through the second air selection port 9; the heavy material such as plant straw or plant seeds remaining after air selection continues to fall to the material guide plate 13 due to gravity, and slides to the first discharge port 8 through the material guide plate 13 , so as to achieve the purpose of separating the heavy material from the light material in the material.

The winnowing machine provided by this embodiment includes: a material inlet, a winnowing room and a fan, the winnowing room includes a first winnowing room and a second winnowing room, and the connection between the first winnowing room and the second winnowing room is set There is a winnowing port, the first winnowing room and the second winnowing room are connected through the winnowing gate, the fan is installed in the second winnowing room close to the winnowing gate, and the end of the first winnowing room away from the winnowing gate is provided with a The first discharge port, the end of the second winnowing room away from the winnowing port is provided with a second discharge port, and the feed port is set at the top of the first winnowing room close to the winnowing port; the material enters the second winch through the feed port One winnowing room, according to the weight of each component in the material, the winnowing suction generated when the fan rotates guides the light material in the material to the second discharge port through the winnowing port, so that the light material is discharged from the second discharge port Discharge; the heavy material obtained after winnowing is discharged through the first discharge port. The winnowing machine has a simple structure and is easy to operate. The heavy material and the light material in the material can be conveniently and quickly separated by the wind force, which effectively improves the work efficiency; further, the winnowing machine has a simple structure, is easy to manufacture, and is effective The manufacturing cost is saved, the popularization is convenient, and the actual demand for wind separators with low manufacturing cost, simple operation and high working efficiency is met in the current market.

The above content is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. A kind of winnowing machine, it is characterized in that, comprises: material inlet, winnowing room and fan, described winnowing room comprises first winnowing room and second winnowing room, described first winnowing room and winnowing room The connection of the second winnowing room is provided with a winnowing port, the first winnowing room communicates with the second winnowing room through the winnowing gate, and the fan is arranged in the second winnowing room Close to the winnowing mouth, the end of the first winnowing chamber far away from the winnowing mouth is provided with a first outlet, and the end of the second winnowing chamber far away from the winnowing mouth is set with a first outlet. Two material outlets, the material inlet is set at the top of the first air selection chamber close to the air selection port; The material enters the first winnowing chamber through the inlet, and according to the weight of each component in the material, the winnowing suction generated when the fan rotates passes through the winnowing opening to remove the light material in the material. lead to the second discharge port, so that the light material is discharged from the second discharge port; the heavy material obtained after air separation is discharged through the first discharge port. 2. The winnowing machine according to claim 1, characterized in that, the winnowing suction surface of the generating winnowing suction of the fan is set opposite to the winnowing port, and when the fan rotates, Wind suction is generated at the mouth. 3. The winnowing machine according to claim 2, characterized in that, the position corresponding to the bottom of the first winnowing chamber is provided with a material guide plate, and one end of the material guide plate is connected to the The air selection port is connected, and the other end is connected with the first material outlet, and the material guide plate is used to guide the heavy material obtained after air selection to the first material outlet. 4. The winnowing machine according to claim 3, characterized in that, the material guiding plate is arranged obliquely at the bottom of the first winnowing chamber, and the tilting angle of the material guiding plate is adjustable. 5 . The winnowing machine according to claim 4 , characterized in that, a material baffle is provided at the connection between the first winnowing chamber and the second winnowing chamber close to the feed inlet. 5 . 6. The winnowing machine as claimed in any one of claims 1-5, wherein a fan cavity is arranged at an end near the winnowing opening in the second winnowing chamber, and the fan and the fan are The connected fan motor is placed in the fan cavity. 7. The winnowing machine according to claim 6, further comprising a wind adjusting device connected to the fan motor for adjusting the winnowing suction of the fan. 8. The winnowing machine according to any one of claims 1-5, further comprising a hopper, the hopper is arranged on the top of the first winnowing chamber, and the inlet is arranged at the top of the first winnowing chamber. into the bottom of the hopper, and the hopper communicates with the first winnowing chamber through the inlet. 9. The winnowing machine according to any one of claims 1-5, further comprising a material transport device, the material transport device is used to transport the material to the material inlet. 10. The winnowing machine according to any one of claims 1-5, further comprising a bracket unit for supporting and connecting.