A soybean winnower

Abstract

The application relates to the technical field of screening equipment, and aims at the low separation efficiency of traditional skin-kerne mixture, and provides a soybean winnowing machine, which comprises a sieve box, a blowing assembly and an air extraction assembly; the inner cavity of the sieve box is sequentially provided with a feeding section, a screening section and a discharging section from top to bottom; a feeding box is connected to the top outer side of the sieve box; the inner cavity top end and the inner cavity bottom end of the feeding box are respectively communicated with the inner cavity of the feeding section and the inner cavity of the screening section; the feeding section comprises a material dripping plate; the material dripping plate is arranged at the bottom of the inner cavity of the feeding section; the material dripping plate is arranged in an inclined mode; the inclined lower end of the material dripping plate extends into the inner cavity of the feeding box; the bottom and the top of the screening section are respectively connected with an air inlet pipe and an air outlet pipe; the blowing assembly is communicated with the air inlet pipe and is used for blowing air into the inner cavity of the screening section; the air extraction assembly is communicated with the air outlet pipe and is used for extracting air from the inner cavity of the screening section. The application has the effect of improving the separation efficiency of skin-kerne mixture.

Description

Technical Field

[0001] This application relates to the technical field of screening equipment, and in particular to a soybean air separator. Background Technology

[0002] Before soybeans can be processed for oil, they must first be processed by a peeling device to form a mixture of skin and kernel. The skin (shell) of the soybeans is then separated from the mixture before the remaining kernels can be sent to the oil processing stage for further processing.

[0003] Currently, the separation of soybean skins and kernels in a mixture of skins and kernels is mainly accomplished using traditional screening equipment such as rotary screens. The rotary screen utilizes its internal mesh and the reciprocating rotation of the screen body to separate the soybean skins and kernels.

[0004] Regarding the aforementioned technologies, when using a rotary screen to separate soybean skins and kernels, the soybean skins easily adhere to or become stuck in the screen mesh, causing screen blockage. Frequent shutdowns for screen cleaning limit overall screening efficiency and affect processing continuity; therefore, there is room for improvement. Utility Model Content

[0005] To facilitate better separation of soybean skin and soybean kernel in a mixture of skin and kernel, this application provides a soybean air separator.

[0006] This application provides a soybean air separator, which adopts the following technical solution:

[0007] A soybean air separator includes a screen box, an air supply assembly, and an exhaust assembly;

[0008] The inner cavity of the screen box consists of a feeding section, a screening section, and a discharge section from top to bottom;

[0009] A feeding box is connected to the outer side of the top of the screen box. The top and bottom of the inner cavity of the feeding box are respectively connected to the inner cavity of the feeding section and the inner cavity of the screening section. A feeding roller is rotatably supported inside the feeding box. Several feeding plates are protruding on the outer periphery of the feeding roller. The feeding box is provided with a first rotary drive component for driving the feeding roller to rotate.

[0010] The feeding section includes a material flow plate, which is located at the bottom of the inner cavity of the feeding section and is inclined. The inclined lower end of the material flow plate extends into the inner cavity of the feeding box.

[0011] The bottom and top of the screening section are respectively connected to an air inlet pipe and an air outlet pipe;

[0012] The air supply component is connected to the air inlet pipe and is used to blow air into the inner cavity of the screening section;

[0013] The exhaust assembly is connected to the exhaust pipe and is used to exhaust air from the inner cavity of the screening section.

[0014] By adopting the above technical solution, when separating the bean skin and bean skin mixture, the air supply component blows air into the inner cavity of the screening section through the air inlet pipe, and the air extraction component draws air into the inner cavity of the screening section through the air outlet pipe, so as to form an upward airflow in the screening section of the screen box. The bean skin and bean skin mixture enters the feeding box through the feed section flow plate, and is then conveyed to the screening section by the feeding roller in the feeding box. The upward airflow separates the bean skin in the bean skin and bean skin mixture to the outside of the air outlet pipe. The bean skin in the bean skin and bean skin mixture continues to flow downward by its own gravity and is discharged through the discharge section, realizing the automatic separation of bean skin and bean skin. Compared with the traditional method of screening by rotary screen, it effectively improves the separation efficiency of bean skin and bean skin. By setting the feeding roller inside the feeding box, the first rotary drive component drives the feeding roller to rotate, so as to evenly convey the bean skin and bean skin mixture to the screening section, which helps to reduce the occurrence of material blockage and can control the feeding speed of the bean skin and bean skin mixture.

[0015] Preferably, a grid plate is laid parallel to the material flow plate, and the grid plate, together with the material flow plate, forms a plurality of buffer material troughs.

[0016] By adopting the above technical solution, the mixture of skin and kernel can be stored in the buffer trough formed by the grating plate and the material flow plate during the falling process, so as to form a buffer layer. This helps to limit the direct impact of the mixture of skin and kernel on the material flow plate, thereby reducing the wear of the material flow plate due to long-term impact from the mixture of skin and kernel.

[0017] Preferably, the upper inclined end of the grid plate is connected to a rotating shaft, and the two ends of the rotating shaft are respectively rotatably connected to both sides of the feeding section. The feeding section is provided with a second rotary drive component, which is used to drive the rotating shaft to rotate.

[0018] By adopting the above technical solution, when the mixture of skin and kernel stops feeding, the second rotary drive unit drives the grating plate to swing up, so that the grating plate is separated from the flow plate, and the mixture of skin and kernel on the flow plate can flow smoothly to the feeding box, thus preventing the mixture of skin and kernel from accumulating on the flow plate and affecting subsequent feeding.

[0019] Preferably, the second rotary drive includes a worm gear mechanism fixed to the outside of the feed section, and one end of the rotating shaft is coaxially fixed with the worm gear component of the worm gear mechanism.

[0020] By adopting the above technical solution, the worm gear mechanism can be rotated to drive the rotating shaft to swing the grid plate up and down, which facilitates the separation and repositioning of the grid plate.

[0021] Preferably, a plurality of impact bars are horizontally supported in the screening section, and the adjacent impact bars are staggered.

[0022] By adopting the above technical solution, when the mixture of skin and kernel flows through the screening section, it can expand with the impact bar. The impact causes the kernels adhering to the skin to fall off and separate further, which improves the separation effect of skin and kernel. At the same time, it can increase the residence time of the mixture of skin and kernel in the screening section, so that the rising airflow can better separate the skin.

[0023] Preferably, an installation port is provided on one side of the screening section, and the screening section is provided with an installation plate for covering the installation port. The installation plate is fixed to the outside of the screening section by bolts; one section of each impact rod is connected to the installation plate by connecting bolts.

[0024] By adopting the above technical solution, the impact bar is stably supported in the inner cavity of the screening section, making the installation and disassembly of the impact bar more convenient. When the impact bar is damaged or needs to be replaced, it can be removed from the screening section through the mounting plate for replacement. At the same time, it is convenient to adjust the number and position of the impact bar according to the actual screening needs.

[0025] Preferably, one end of the impact rod is rotatably connected to the mounting plate, and a third rotary drive is provided on the side of the mounting plate away from the screening section. The third rotary drive is driven to the impact rod to drive the impact rod to rotate.

[0026] By adopting the above technical solution, on the one hand, the rotating impact rod can fully contact and collide with soybeans and soybean skins, so that the soybean skins and soybean kernels can be further separated, which is conducive to improving the separation effect of soybeans and soybean skins. On the other hand, the rotating impact rod can buffer the impact of the mixture of skins and kernels on the impact rod, so that the impact rod is not easily damaged.

[0027] Preferably, the bottom of the screening section is connected to a plurality of sampling tubes, and the sampling tube openings are fitted with sealing caps.

[0028] By adopting the above technical solution, during the separation process of the skin and kernel mixture, the sealed cover can be opened and the sieved kernel sample can be obtained through the sampling tube to detect the overall separation quality of the skin and kernel mixture.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. During the separation of the bean skin and bean skin mixture, the air supply component blows air into the inner cavity of the screening section through the air inlet pipe, and the exhaust component draws air into the inner cavity of the screening section through the air outlet pipe, forming an upward airflow within the screening box. The bean skin and bean skin mixture enters the feeding box through the feed plate in the feeding section, and is then conveyed to the screening section by the feed rollers inside the feeding box. The upward airflow separates the bean skin from the bean skin and bean skin mixture and pushes it out of the air outlet pipe, while the bean skin flows downward by its own gravity and is discharged through the discharge section, thus achieving automatic separation of bean skin and bean skin.

[0031] 2. By setting a second rotary drive to drive the grating shaft to rotate, after the feeding of the bran and kernel mixture is stopped, the grating can be driven to swing upward by the second rotary drive so that the bran and kernel mixture stored in the buffer trough can flow smoothly into the feeding box, avoiding the accumulation of the bran and kernel mixture on the feed plate.

[0032] 3. By setting a third rotary drive unit on the outside of the mounting plate to drive the impact bar to rotate, the impact bar can be driven to rotate during the operation of the air classifier. On the one hand, this is beneficial to improving the separation effect of the impact bar on the mixture of skin and kernel, and on the other hand, it is beneficial to buffer the impact of the mixture of skin and kernel on the impact bar. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a soybean air separator, as shown in Example 1.

[0034] Figure 2 This is a schematic diagram of the internal structure of a soybean air separator, as shown in Example 1.

[0035] Figure 3 This is a schematic diagram of the structure of the material flow plate and the grating plate in Embodiment 1.

[0036] Figure 4 This is a schematic diagram of the structure of the mounting plate and the impact rod in Embodiment 1.

[0037] Figure 5 This is a schematic diagram of the internal structure of the discharge section used in Embodiment 1.

[0038] Figure 6 This is a partial schematic diagram of Embodiment 2, illustrating the mounting plate and the impact rod.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Screen box; 11. Feeding section; 111. Flow plate; 112. Grating plate; 113. Rotating shaft; 114. Worm gear mechanism; 12. Screening section; 121. Air inlet pipe; 122. Air outlet pipe; 123. Impact rod; 124. Mounting plate; 1241. Third rotary drive component; 125. Sampling tube; 126. Sealing cover plate; 13. Discharge section; 131. First discharge plate; 132. Second discharge plate; 133. Connecting shaft; 134. Counterweight rod; 135. Counterweight block; 2. Feeding box; 21. Feeding roller; 211. Feeding plate; 22. First rotary drive component. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] Example 1

[0043] This application discloses a soybean air separator, referring to... Figure 1 and Figure 2 The system includes a screen box 1, an air supply assembly, and an exhaust assembly. The inner cavity of the screen box 1 consists of a feeding section 11, a screening section 12, and an exhaust section 13, arranged from top to bottom. A feeding box 2 is connected to the outer top of the screen box 1. The top and bottom of the feeding box 2 are connected to the inner cavities of the feeding section 11 and the screening section 12, respectively. An air inlet pipe 121 and an air outlet pipe 122 are connected to the bottom and top of the screening section 12, respectively. The air supply assembly is connected to the air inlet pipe 121 and is used to blow air into the inner cavity of the screening section 12; the exhaust assembly is connected to the air outlet pipe 122 and is used to exhaust air from the inner cavity of the screening section 12.

[0044] Reference Figure 1 and Figure 2 A feeding roller 21 is rotatably supported inside the feeding box 2, and several feeding plates 211 are protruding from the outer periphery of the feeding roller 21. The feeding box 2 is provided with a first rotary drive 22 for driving the feeding roller 21 to rotate. In this embodiment, the first rotary drive 22 is a geared motor, and the output end of the geared motor is connected to the shaft of the feeding roller 21 through a coupling. When the air separator is running, the geared motor drives the feeding roller 21 to rotate. This gradually conveys the soybean skin and kernel mixture in the feeding box 2 to the screening section 12, which is beneficial for the skin and kernel mixture to enter the screening section 12 evenly and smoothly through the feeding box 2. At the same time, the rotation speed of the feeding roller 21 can be adjusted by the first rotary drive 22 to regulate the feeding speed of the skin and kernel mixture entering the screening section 12.

[0045] Reference Figure 2 and Figure 3 The feeding section 11 includes a material flow plate 111, which is located at the bottom of the inner cavity of the feeding section 11 and is inclined. The inclined lower end of the material flow plate 111 extends into the inner cavity of the feeding box 2 to connect the feeding section 11 and the feeding box 2. A grid plate 112 is laid parallel on the material flow plate 111, and the grid plate 112 and the material flow plate 111 form a number of buffer troughs. The mixture of skin and kernel that subsequently enters the feeding section 11 can be stored in the number of buffer troughs formed by the grid plate 112 and the material flow plate 111 to form a buffer layer on the material flow plate 111, limiting the direct impact of the skin and kernel mixture on the material flow plate 111 and preventing the surface of the material flow plate 111 from being easily worn.

[0046] Reference Figure 2 and Figure 3A rotating shaft 113 is connected to the inclined upper end of the grid plate 112. Both ends of the rotating shaft 113 are rotatably mounted on both sides of the feeding section 11 via bearings. The feeding section 11 is equipped with a second rotary drive component to drive the rotating shaft 113 to rotate. Specifically, the second rotary drive component includes a worm gear mechanism 114 fixed to the outside of the feeding section 11. The worm gear mechanism 114 uses an existing worm gear reducer. One end of the rotating shaft 113 is coaxially fixed to the worm gear component of the worm gear mechanism 114. A rotating wheel is connected to the end of the worm component of the worm gear mechanism 114 to facilitate the rotation of the worm component.

[0047] Reference Figure 2 and Figure 3 When the subsequent feeding section 11 stops feeding, the worm gear of the worm gear mechanism 114 can be rotated by the rotating wheel to drive the rotating shaft 113 to swing the grid plate 112 upward, so that the mixture of skin and kernel that was originally accumulated on the flow plate 111 can slide from the flow plate 111 into the feeding box 2, thus preventing the mixture of skin and kernel from accumulating on the flow plate 111 and affecting the subsequent feeding.

[0048] Reference Figure 1 and Figure 2 The air supply assembly includes a centrifugal fan, which is connected to the end of the air inlet pipe 121 furthest from the screen box 1. The exhaust assembly includes a cyclone separator, which is connected to the end of the air outlet pipe 122 furthest from the screen box 1. During operation, the centrifugal fan continuously supplies air into the screening section 12 of the screen box 1, while the cyclone separator exhausts air from the screening section 12, creating an upward airflow within the screening section 12. This upward airflow separates the lighter bean skins from the beans in the mixture flowing through the screening section 12, carrying them upwards through the air outlet pipe 122 out of the screen box 1. The heavier beans in the mixture flow downwards and are eventually discharged through the discharge section 13. This achieves effective separation of bean skins and beans in the mixture.

[0049] In other embodiments, the centrifugal fan can be replaced by a hot air fan, which delivers hot air into the screening section 12 to separate the skin and kernel mixture while assisting in drying the kernels.

[0050] In this embodiment, the air inlet pipe 121 is bent upwards, so that the airflow delivered by the centrifugal fan can be buffered before entering the inner cavity of the screening section 12, so as to form a more stable upward airflow in the inner cavity of the screening section 12, which is conducive to the airflow acting more evenly on the mixture of skin and kernel.

[0051] Both the air inlet pipe 121 and the air outlet pipe 122 have inspection ports on their outer sides, and each inspection port is fixed with an inspection door by bolts, which facilitates subsequent cleaning and maintenance of the interior of the air inlet pipe 121 and the air outlet pipe 122 through the corresponding inspection ports.

[0052] Reference Figure 2 and Figure 4 Several impact rods 123 are horizontally supported within the screening section 12, with adjacent impact rods 123 staggered vertically. The impact rods 123 are specifically made of stainless steel. An installation opening is provided on one side of the screening section 12, and a mounting plate 124 is provided corresponding to the installation opening to cover it. The mounting plate 124 is fixed to the outside of the screening section 12 by bolts; one section of each impact rod 123 is connected to the mounting plate 124 by connecting bolts.

[0053] By setting the impact bar 123, on the one hand, it is beneficial to extend the residence time of the bean skin and bean skin mixture in the screening section 12, so that the rising airflow can better separate the bean skin and bean skin. On the other hand, when the bean skin and bean skin mixture flows through the screening section 12, it can collide with the impact bar 123, so that some of the bean skin remaining on the bean skin can be separated from the bean skin, which is conducive to improving the separation effect of bean skin and bean skin.

[0054] The impact rod 123 is fixed to the mounting plate 124 by connecting bolts. On the one hand, the impact rod 123 is stably installed in the inner cavity of the screening section 12. On the other hand, it is convenient to replace and install the impact rod 123 when it wears out.

[0055] Reference Figure 2 Several angle irons are welded to the two inner walls adjacent to the installation port of the screening section 12. The angle irons are evenly distributed along the height direction of the inner cavity of the screening section 12. The setting of the angle irons allows the subsequent rising airflow to form local turbulence or disturbance at the angle irons, which helps to enhance the contact efficiency between the airflow and the material.

[0056] Reference Figure 2 and Figure 5 Several sampling tubes 125 are connected to the bottom of the screening section 12. The tubes are inclined upwards away from the screening section 12, and a sealing cover 126 is installed at the end of the sampling tube 125. The sealing cover 126 seals the sampling tubes 125. Through the sampling tubes 125, the material after screening inside the screening section 12 can be sampled and observed during the subsequent operation of the air classifier, so as to understand the screening situation of the mixture of skin and kernel.

[0057] Reference Figure 2 and Figure 5The discharge section 13 is equipped with a discharge assembly, which includes a first discharge plate 131 and a second discharge plate 132. The first discharge plate 131 and the second discharge plate 132 are respectively inclined downward and supported on opposite sides of the inner cavity of the discharge section 13, and are arranged vertically. The inclined lower end of the second discharge plate 132 extends below the inclined lower end of the first discharge plate 131. The bottom side of the second discharge plate 132 has a connecting shaft 133, which is horizontally arranged. Both ends of the connecting shaft 133 are rotatably inserted through the two sides of the discharge section 13 via bearings. A counterweight rod 134 is vertically connected to the end of the connecting shaft 133. A counterweight block 135 is provided at the end of the counterweight rod 134 away from the connecting shaft 133. The counterweight block 135 and the counterweight rod 134 cooperate to drive the second discharge plate 132 to swing upward, so that the inclined lower end of the second discharge plate 132 abuts against the inclined lower end of the first discharge plate 131. The arrangement of the first discharge plate 131 and the second discharge plate 132 helps to reduce the loss of airflow from the discharge section 13 into the air separator.

[0058] When the separated beans fall to the second discharge plate 132, the beans can use their own gravity to drive the customer counterweight 135 of the second discharge plate 132 to swing downwards, so that the beans are discharged from the discharge section 13 through the second discharge plate 132.

[0059] The implementation principle of Example 1 is as follows: When the air separator is running, the centrifugal fan and the cyclone separator respectively supply air and exhaust air into the screening section 12 to form an upward airflow in the screen box 1. At the same time, the first rotary drive 22 drives the feeding roller 21 in the feeding box 2 to rotate. After the mixture of skin and kernel to be screened enters the feeding box 2 through the feed plate 111 of the feeding section 11, it is transported to the screening section 12 by the rotating feeding roller 21 in the feeding box 2. The upward airflow in the screening section 12 separates the bean skin in the mixture of skin and kernel and carries it out of the screen box 1. The remaining bean kernel continues to flow downward by its own gravity and is discharged through the discharge section 13, realizing the automatic separation of bean kernel and bean skin.

[0060] Example 2

[0061] The difference between Example 2 and Example 1 is that:

[0062] Reference Figure 4 and Figure 6One end of the impact rod 123 is coaxially rotatably mounted on the mounting plate 124 via a bearing. A third rotary drive 1241 is located on the side of the mounting plate 124 opposite to the screening section 12. The third rotary drive 1241 is driven to the impact rod 123 to drive its rotation. In this embodiment, the third rotary drive 1241 is a motor, and the motor output is connected to the impact rod 123 via a coupling, driving the impact rod 123 to rotate. When the impact rod 123 rotates, it facilitates better separation of the bean kernels and bean skins, while also buffering the impact of the mixture of kernels and skins on the impact rod 123, reducing the risk of damage. In other embodiments, the third rotary drive 1241 may use a structure of a motor and a synchronous belt to drive the impact rod 123 to rotate.

[0063] The implementation principle of Example 2 is similar to that of Example 1, so it will not be described again.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A soybean air separator, characterized in that: Includes a screen box (1), an air supply assembly, and an exhaust assembly; The inner cavity of the screen box (1) consists of a feeding section (11), a screening section (12), and a discharge section (13) from top to bottom; The top outer side of the sieve box (1) is connected to a feeding box (2). The top and bottom of the inner cavity of the feeding box (2) are respectively connected to the inner cavity of the feeding section (11) and the inner cavity of the screening section (12). A feeding roller (21) is rotatably supported inside the feeding box (2). Several feeding plates (211) are protruding on the outer periphery of the feeding roller (21). The feeding box (2) is provided with a first rotary drive (22) for driving the feeding roller (21) to rotate. The feeding section (11) includes a material flow plate (111), which is located at the bottom of the inner cavity of the feeding section (11) and is inclined. The inclined lower end of the material flow plate (111) extends into the inner cavity of the feeding box (2). The bottom and top of the screening section (12) are respectively connected to an air inlet pipe (121) and an air outlet pipe (122); The air supply assembly is connected to the air inlet pipe (121) and is used to blow air into the inner cavity of the screening section (12); The exhaust assembly is connected to the exhaust pipe (122) and is used to exhaust air from the inner cavity of the screening section (12).

2. The soybean air separator according to claim 1, characterized in that: A grid plate (112) is laid parallel on the material flow plate (111), and the grid plate (112) cooperates with the material flow plate (111) to form several buffer material troughs.

3. A soybean air separator according to claim 2, characterized in that: The upper end of the grating plate (112) is connected to a rotating shaft (113). The two ends of the rotating shaft (113) are rotatably connected to both sides of the feeding section (11). The feeding section (11) is provided with a second rotary drive, which is used to drive the rotating shaft (113) to rotate.

4. A soybean air separator according to claim 3, characterized in that: The second rotary drive includes a worm gear mechanism (114) fixed on the outside of the feed section (11), and one end of the rotating shaft (113) is coaxially fixed with the worm gear component of the worm gear mechanism (114).

5. A soybean air separator according to claim 1, characterized in that: Several impact rods (123) are horizontally supported in the screening section (12), and the impact rods (123) are staggered between adjacent ones.

6. A soybean air separator according to claim 5, characterized in that: The screening section (12) has an installation opening on one side, and the screening section (12) is provided with an installation plate (124) for covering the installation opening. The installation plate (124) is fixed to the outside of the screening section (12) by bolts. One section of the impact rod (123) is connected to the installation plate (124) by connecting bolts.

7. A soybean air separator according to claim 6, characterized in that: One end of the impact rod (123) is rotatably connected to the mounting plate (124). A third rotary drive (1241) is provided on the side of the mounting plate (124) away from the screening section (12). The third rotary drive (1241) is driven to connect with the impact rod (123) and is used to drive the impact rod (123) to rotate.

8. A soybean air separator according to claim 1, characterized in that: The bottom of the screening section (12) is connected to several sampling tubes (125), and the sampling tubes (125) are equipped with sealing caps (126) at the tube openings.

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