A deep processing method for selenium-rich rice

Abstract

The present invention discloses a method for deep processing of selenium-rich rice, and relates to the technical field of rice processing. The method is implemented by a selenium-rich rice deep processing device, which includes a processing cylinder, a feed hopper fixedly nested on the top of the processing cylinder, an air intake drive mechanism provided inside the processing cylinder and inside the feed hopper, and a first kneading mechanism, an opening and closing screening mechanism, and a second kneading mechanism provided on the outside of the air intake drive mechanism in a sequential manner from top to bottom. The present invention can effectively distinguish and process rice of different particle sizes, and can also avoid the situation in which large-grain rice is mixed with small-grain rice after shelling and is subjected to secondary processing during the processing process. In addition, the removed rice husk can be better removed, and the degree of automation is higher, making it more suitable for industrial deep processing of selenium-rich rice.

Description

Technical Field

[0001] The invention relates to the technical field of rice processing, and in particular to a deep processing method for selenium-enriched rice. Background Art

[0002] To address the problems that existing rice hulling equipment is unable to process smaller rice grains in the same batch, requiring secondary processing, increasing workload, and easily crushing larger rice grains, the invention patent with authorization announcement number CN 112691718 B discloses a selenium-rich rice deep processing method to solve the above technical problems. The selenium-rich rice deep processing method is completed using a selenium-rich rice deep processing device.

[0003] However, the selenium-rich rice deep processing device provided in the above-mentioned deep processing method still has some shortcomings in actual use. The most obvious one is that although it can screen rice of different particle sizes through filter No. 1 and rub them separately, during the rubbing process, the rice located at the top will become smaller after rubbing. At this time, some of the rice that has become smaller enough to pass through filter No. 1 will fall to the top of filter No. 2, thereby increasing the total amount of rice on the top of filter No. 2, affecting the processing efficiency of the rice on the top of filter No. 2.

[0004] In addition, this device and similar devices in the prior art mostly use side blowing to separate rice husks, but the airflow generated in this way can only take away the rice husks on the surface of the rice pile, while the rice husks inside the rice pile cannot be effectively cleaned, resulting in rice husk residues after the final processing is completed.

[0005] Therefore, it is necessary to invent a selenium-rich rice deep processing method to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a selenium-enriched rice deep processing method to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a method for deep processing of selenium-rich rice, which is implemented by a selenium-rich rice deep processing device, wherein the selenium-rich rice deep processing device comprises a processing cylinder, a feed hopper is fixedly nested on the top of the processing cylinder, an air intake drive mechanism is commonly provided inside the processing cylinder and inside the feed hopper, a first kneading mechanism, an opening and closing screening mechanism, and a second kneading mechanism are sequentially provided on the outside of the air intake drive mechanism from top to bottom, a lifting support mechanism is provided below the second kneading mechanism, and a limited position material guiding mechanism is provided on the outside of the top of the opening and closing screening mechanism;

[0008] The air intake drive mechanism includes a rotating shaft, a drive motor, a drive gear, an air supply pipe, an air supply hole, a drive screw, a first spring and a first limit block;

[0009] The rotating shaft passes through the bottom of the processing cylinder and is rotatably connected to the processing cylinder through a bearing. The driving motor is fixedly arranged on the right side of the bottom of the processing cylinder. Two driving gears are provided. The rotating shaft is transmission-connected to the driving motor through two driving gears. The air supply pipe is rotatably connected to the bottom end of the rotating shaft through a rotating joint. There are two air supply holes, and both of the air supply holes are opened on the front side of the rotating shaft. The driving screw is fixedly arranged on the top end of the rotating shaft. The first spring is sleeved on the outside of the rotating shaft and is rotatably connected to the driving screw through a bearing. The first limit block is slidably sleeved on the outside of the rotating shaft and is fixedly connected to the first spring.

[0010] The first kneading mechanism includes a first rotating disk and two groups of kneading components, the two groups of kneading components are fixedly arranged on both sides of the bottom of the first rotating disk, and any group of the kneading components includes a first telescopic rod, a second spring, a connecting rod, a first roller sleeve and a first rubber roller;

[0011] The first rotating disk is fixedly sleeved on the top outer side of the driving screw, the inner shaft of the first telescopic rod is fixedly connected to the first rotating disk, the second spring is sleeved on the outer side of the first telescopic rod, the connecting rod is fixedly set on the bottom of the first telescopic rod, the first roller sleeve is fixedly set on the bottom end of the connecting rod, and the first rubber roller is rotatably nested inside the first roller sleeve;

[0012] The opening and closing type screening mechanism includes a threaded sleeve, a partition, an intermediate plate, screening holes, a gas diversion pipe, a third spring and a second limit block;

[0013] The cam is connected to the outer side of the driving screw by a threaded connection, and the cam is connected to the inner side of the processing cylinder by sliding connection in the vertical direction. The cam is fixedly connected to the outer bottom of the threaded sleeve. Two intermediate plates, gas diverter tubes, third springs and second limit blocks are provided. There are multiple screening holes. The two intermediate plates are respectively slidably provided on both sides of the interior of the partition. Multiple screening holes are respectively penetrated on the top, bottom and intermediate plates of the partition. The two gas diverter tubes are respectively fixedly nested inside the two intermediate plates. The input end of the gas diverter tube extends to the inner side of the intermediate plate. The multiple output ends of the gas diverter tubes extend to the top of the intermediate plate. The two third springs are respectively fixedly connected to the outer sides of the two intermediate plates and are both fixedly connected to the inner walls of the adjacent intermediate plates. The two second limit blocks are respectively fixedly provided on the inner bottoms of the two intermediate plates and are both in contact with the first limit block.

[0014] The second kneading mechanism includes a second rotating disk, a second roller sleeve and a second rubber roller;

[0015] The second rotating disk is fixedly sleeved on the outside of the rotating shaft, and two second roller sleeves and two second rubber rollers are provided. The two second roller sleeves are respectively fixedly provided on both sides of the bottom of the second rotating disk, and the two second rubber rollers are respectively rotatably nested inside the two second roller sleeves.

[0016] The lifting support mechanism includes a support plate, a cavity, a gas diversion channel, a support rod, a fourth spring, a second telescopic rod and an annular connecting seat;

[0017] The support plate is slidably sleeved and arranged on the outside of the rotating shaft, and slides in contact with the inner wall of the processing cylinder, and the cavity is opened at the center of the support plate, and the gas diversion channel is opened on the outside of the support plate and is connected with the cavity. The support rod, the fourth spring, the second telescopic rod and the annular connecting seat are each provided with two, and the two support rods are respectively fixed on both sides of the bottom of the support plate, and both slide through the inner wall of the processing cylinder and extend to the outside of the processing cylinder, the two fourth springs are respectively sleeved and arranged on the outside of the two support rods, and the two second telescopic rods are respectively slid through and arranged on both sides of the top of the second rotating disk, and the two annular connecting seats are respectively fixed on the top of the two second telescopic rods and the bottom of the two second telescopic rods, the annular connecting seat located above is rotatably nested in the bottom of the partition through a bearing, and the annular connecting seat located below is rotatably nested on the top of the support plate through a bearing;

[0018] The position limiting material guiding mechanism includes an annular material guiding platform, a sliding groove and a slider;

[0019] The annular material guide platform is slidably arranged on the inner side of the processing cylinder along the vertical direction. The annular material guide platform is fitted on the top of the partition. There are two slide grooves and two sliders. The two slide grooves are respectively opened on both sides of the annular material guide platform. The two sliders are respectively slidably arranged on the inner sides of the two slide grooves, and they are both fixedly connected to the inner wall of the processing cylinder.

[0020] The method specifically comprises the following steps:

[0021] S1. Selenium-rich rice is added to the processing drum through the top opening of the feed hopper. The rice then falls on the top of the partition. Some small rice particles pass through the sieve holes and fall on the top of the support plate. The drive motor is then started.

[0022] S2. After the driving motor is started, the driving screw is driven to rotate via the rotating shaft. When the driving screw rotates, the threaded sleeve is continuously lowered. When the threaded sleeve is lowered, the partition is continuously lowered. In the process of driving the partition to be lowered, the driving screw drives the first rotating disk to rotate continuously via the driving screw. The first rotating disk drives the connecting rod to rotate via the first telescopic rod that is continuously extended by the second spring. The connecting rod then drives the first rubber roller via the first roller sleeve to continuously stir the rice raw material located inside the partition, so that the small-particle rice raw material can quickly fall to the top of the supporting plate.

[0023] S3. When the threaded sleeve drives the partition to descend, the compressed first spring gradually resets. After the first spring resets, as the partition continues to descend, the first spring drives the first limit block to rise relatively. When the partition descends a distance reaching a first threshold, the screening of large-grain rice raw materials and small-grain rice raw materials is completed, and the first limit block releases the limit on the second limit block. At this time, under the push of the third spring, the partition causes the middle plate to move inward. At this time, the screening holes on the middle plate are no longer collinear with the screening holes on the partition. At the same time, multiple output ends of the gas diversion pipe are respectively collinear with the multiple screening holes on the top of the partition.

[0024] S4. During the subsequent descent of the partition, the driving screw continuously drives the first rubber roller to rotate via the first rotating disk, and the rotating shaft continuously drives the second rubber roller to rotate via the second rotating disk, thereby kneading the rice raw materials on the top of the partition and the top of the supporting plate respectively. In addition, when the partition descends, the annular material guide platform synchronously descends along the slider to maintain a state of contact with the top of the partition;

[0025] S5. When the partition has descended a distance that reaches a second threshold, the slider moves to the top of the chute. Simultaneously, the air supply hole located above enters the inner side of the partition. Air flow input from the air supply pipe into the rotating shaft enters the interior of the partition through the air supply hole, then passes through the gas diversion pipe into the sieve holes at the top of the partition and is ejected from the top opening. The rice remaining inside the sieve holes at the top of the partition is flushed out, and the rice husks contained in the rice raw material are also discharged through the waste pipe on the right side of the processing cylinder under the influence of the air flow.

[0026] S6. When the partition has descended a distance that reaches a third threshold, the second telescopic rod is shortened to its shortest due to the descending of the partition. Subsequently, as the partition continues to descend, the partition begins to push the supporting plate downward via the second telescopic rod. When the partition has descended a distance that reaches a fourth threshold, the air supply hole located below enters the inner side of the cavity. At this time, the air flow blows the rice husks in the rice pile on top of the supporting plate through the gas diversion channel, and the rice husks are also discharged through the waste pipe on the right side of the processing cylinder under the drive of the air flow.

[0027] S7. When the partition descends to a fourth threshold, the partition, the supporting plate and the two discharge ports on the processing cylinder are collinear. At this time, the rice on the top of the partition and the top of the supporting plate are discharged through the two discharge ports respectively.

[0028] Technical effects and advantages of the present invention:

[0029] The present invention is provided with an air intake drive mechanism, a first kneading mechanism, an opening and closing type screening mechanism, a second kneading mechanism, a lifting support mechanism and a position limiting material guiding mechanism, so that the air intake drive mechanism is used to drive the first kneading mechanism, the opening and closing type screening mechanism and the second kneading mechanism, thereby causing the first kneading mechanism to stir the rice raw materials accumulated on the top of the opening and closing type screening mechanism and guided by the position limiting material guiding mechanism, thereby causing the small rice particles in the rice raw materials to quickly fall to the top of the lifting support mechanism and be processed by the second kneading mechanism, and at the same time, as the opening and closing type screening mechanism is continuously driven, the opening and closing type screening mechanism automatically completes the closure, thereby avoiding partial After the rice raw materials are husked, they fall down, and the subsequent opening and closing screening mechanism can automatically receive the airflow from the air intake drive mechanism, and at the same time help the lifting support mechanism to receive the airflow from the air intake drive mechanism, and then clean the rice husks in the rice raw materials from below. Compared with the same type of devices in the prior art, the present invention can not only effectively distinguish and process rice of different particle sizes, but also avoid the situation in which large-grain rice is mixed with small-grain rice after husking and is subjected to secondary processing during the processing process. In addition, the removed rice husks can be better removed, and the degree of automation is higher and it is more suitable for the industrial deep processing of selenium-rich rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention.

[0031] Figure 2 It is a schematic diagram of the tabletop cross-sectional structure of a part of the air intake drive mechanism, the second kneading mechanism and the lifting support mechanism of the present invention.

[0032] Figure 3 It is a front cross-sectional structural diagram of a part of the air intake drive mechanism, the first kneading mechanism, the opening and closing screening mechanism and the position limiting material guiding mechanism of the present invention.

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A.

[0034] In the figure: 1. Processing cylinder; 2. Feed hopper; 3. Air intake drive mechanism; 31. Rotating shaft; 32. Drive motor; 33. Drive gear; 34. Air supply pipe; 35. Air supply hole; 36. Drive screw; 37. First spring; 38. First limit block; 4. First kneading mechanism; 41. First rotating disk; 42. First telescopic rod; 43. Second spring; 44. Connecting rod; 45. First roller sleeve; 46. First rubber roller; 5. Opening and closing screening mechanism; 51. Threaded sleeve; 52. Partition; 5 3. Middle plate; 54. Screening hole; 55. Gas diversion pipe; 56. Third spring; 57. Second limit block; 6. Second kneading mechanism; 61. Second rotating disk; 62. Second roller sleeve; 63. Second rubber roller; 7. Lifting support mechanism; 71. Support plate; 72. Cavity; 73. Gas diversion channel; 74. Support rod; 75. Fourth spring; 76. Second telescopic rod; 77. Annular connecting seat; 8. Limiting material guiding mechanism; 81. Annular material guiding platform; 82. Slide groove; 83. Slider. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0036] The present invention provides Figure 1-4 A method for deep processing of selenium-rich rice is shown, and the method for deep processing of selenium-rich rice is implemented by selenium-rich rice deep processing equipment, and the selenium-rich rice deep processing equipment includes a processing cylinder 1, and a feed hopper 2 is fixedly nested on the top of the processing cylinder 1, and an air intake drive mechanism 3 is commonly provided inside the processing cylinder 1 and inside the feed hopper 2. A first kneading mechanism 4, an opening and closing screening mechanism 5 and a second kneading mechanism 6 are sequentially provided on the outside of the air intake drive mechanism 3 from top to bottom, and a lifting support mechanism 7 is provided below the second kneading mechanism 6, and a limited material guiding mechanism 8 is provided on the outside of the top of the opening and closing screening mechanism 5.

[0037] like Figure 2 、 Figure 3 and Figure 4As shown, the air intake drive mechanism 3 includes a rotating shaft 31, a driving motor 32, a driving gear 33, an air supply pipe 34, an air supply hole 35, a driving screw 36, a first spring 37 and a first limit block 38, wherein the rotating shaft 31 passes through the bottom of the processing cylinder 1 and is rotatably connected to the processing cylinder 1 through a bearing, the driving motor 32 is fixedly arranged on the right side of the bottom of the processing cylinder 1, two driving gears 33 are provided, the rotating shaft 31 is transmission-connected to the driving motor 32 through two driving gears 33, the air supply pipe 34 is rotatably connected to the bottom end of the rotating shaft 31 through a rotating joint, two air supply holes 35 are provided, and the two air supply holes 35 are both opened on the front of the rotating shaft 31, the driving screw 36 is fixedly provided at the top end of the rotating shaft 31, the first spring 37 is sleeved on the outside of the rotating shaft 31 and is rotatably connected to the driving screw 36 through a bearing, and the first limit block 38 is slidingly sleeved on the outside of the rotating shaft 31 and fixedly connected to the first spring 37.

[0038] like Figure 3 As shown, the first kneading mechanism 4 includes a first rotating disk 41 and two groups of kneading components, and the two groups of kneading components are respectively fixedly arranged on both sides of the bottom of the first rotating disk 41, and any group of the kneading components includes a first telescopic rod 42, a second spring 43, a connecting rod 44, a first roller sleeve 45 and a first rubber roller 46, wherein the first rotating disk 41 is fixedly sleeved on the top outer side of the driving screw 36, the inner shaft of the first telescopic rod 42 is fixedly connected to the first rotating disk 41, the second spring 43 is sleeved on the outer side of the first telescopic rod 42, the connecting rod 44 is fixedly arranged at the bottom of the first telescopic rod 42, the first roller sleeve 45 is fixedly arranged at the bottom end of the connecting rod 44, and the first rubber roller 46 is rotatably nested inside the first roller sleeve 45.

[0039] By setting up the above structure, when the driving screw 36 rotates, the two second springs 43 are driven to rotate through the first rotating disk 41. The two second springs 43 can drive the two first rubber rollers 46 to rub the rice on the top of the opening and closing screening mechanism 5 through the two connecting rods 44 and the two first roller sleeves 45. The setting of the second spring 43 enables the first telescopic rod 42 to drive the first rubber roller 46 to continuously descend through the connecting rod 44 and the first roller sleeve 45, thereby making the first rubber roller 46 continuously located above the opening and closing screening mechanism 5.

[0040] like Figure 3 and Figure 4As shown, the opening and closing screening mechanism 5 includes a threaded sleeve 51, a partition 52, an intermediate plate 53, a screening hole 54, a gas diversion pipe 55, a third spring 56 and a second limit block 57, wherein the threaded sleeve 51 is sleeved on the outside of the driving screw 36 and is threadedly connected to the driving screw 36, the partition 52 is slidably nested in the inner side of the processing cylinder 1 along the vertical direction, the partition 52 is fixedly sleeved on the bottom outside the threaded sleeve 51, the intermediate plate 53, the gas diversion pipe 55, the third spring 56 and the second limit block 57 are each provided with two, the screening hole 54 is provided with multiple, and the two intermediate plates 53 are respectively slidably provided On both sides of the interior of the partition 52, multiple screening holes 54 are respectively arranged through the top of the partition 52, the bottom of the partition 52 and the middle plate 53, and the two gas diversion tubes 55 are respectively fixedly nested inside the two middle plates 53. The input end of the gas diversion tube 55 extends to the inner side of the middle plate 53, and the multiple output ends of the gas diversion tube 55 all extend to the top of the middle plate 53. The two third springs 56 are respectively fixedly connected to the outside of the two middle plates 53, and are both fixedly connected to the inner walls of the adjacent partitions 52. The two second limit blocks 57 are respectively fixedly set at the inner bottom of the two middle plates 53 and are both in contact with the first limit block 38.

[0041] By setting the above structure, the screw 36 is driven to rotate and the partition 52 is driven to descend through the threaded sleeve 51. When the partition 52 descends, the small particles of rice located on the top thereof can pass through the screening holes 54 and fall down. At the same time, the first spring 37 gradually resets during the descending process of the partition 52. Subsequently, when the first spring 37 drives the first limit block 38 to release the limit on the second limit block 57, the partition 52 moves the middle plate 53 inward under the push of the third spring 56. At this time, the screening holes 54 on the middle plate 53 are no longer collinear with the screening holes 54 on the partition 52. At the same time, the multiple output ends of the gas diversion tube 55 are respectively collinear with the multiple screening holes 54 on the top of the partition 52. Therefore, when the air supply hole 35 located above enters the inner side of the partition 52, the airflow can enter the screening holes 54 opened at the top of the partition 52 through the gas diversion tube 55, thereby removing the rice grains and rice husks inside it.

[0042] like Figure 2 As shown, the second kneading mechanism 6 includes a second rotating disk 61, a second roller sleeve 62 and a second rubber roller 63, wherein the second rotating disk 61 is fixedly sleeved on the outside of the rotating shaft 31, and two second roller sleeves 62 and two second rubber rollers 63 are each provided. The two second roller sleeves 62 are respectively fixedly arranged on both sides of the bottom of the second rotating disk 61, and the two second rubber rollers 63 are respectively rotatably nested inside the two second roller sleeves 62.

[0043] By setting the above structure, the rotating shaft 31 drives the second rubber roller 63 to rotate through the second rotating disk 61 and the second roller sleeve 62, so that the second rubber roller 63 rubs the rice on the top of the supporting plate 71 to remove the rice husks on the rice on the top of the supporting plate 71.

[0044] like Figure 2 As shown, the lifting support mechanism 7 includes a support plate 71, a cavity 72, a gas diversion channel 73, a support rod 74, a fourth spring 75, a second telescopic rod 76 and an annular connecting seat 77, wherein the support plate 71 is slidably sleeved on the outside of the rotating shaft 31 and slides in contact with the inner wall of the treatment cylinder 1, the cavity 72 is opened at the center of the support plate 71, the gas diversion channel 73 is opened on the outside of the support plate 71 and communicates with the cavity 72, the support rod 74, the fourth spring 75, the second telescopic rod 76 and the annular connecting seat 77 are each provided with two, and the two support rods 74 are fixed respectively. They are arranged on both sides of the bottom of the supporting plate 71, and both slide through the inner wall of the processing cylinder 1 and extend to the outside of the processing cylinder 1. The two fourth springs 75 are respectively sleeved on the outside of the two support rods 74, and the two second telescopic rods 76 are respectively slid through and arranged on both sides of the top of the second rotating disk 61. The two annular connecting seats 77 are respectively fixed on the top of the two second telescopic rods 76 and the bottom of the two second telescopic rods 76. The annular connecting seat 77 located above is nested and arranged at the bottom of the partition 52 through a bearing rotation, and the annular connecting seat 77 located below is nested and arranged at the top of the supporting plate 71 through a bearing rotation.

[0045] By setting the above structure, the second telescopic rod 76 can be compressed when the partition 52 descends. When the second telescopic rod 76 is compressed to the shortest, the partition 52 drives the support plate 71 to descend through the second telescopic rod 76. As the support plate 71 continues to descend, the air supply hole 35 located below is connected with the cavity 72. At this time, the air flow can clean the rice husks in the rice raw materials on the top of the support plate 71 through the gas diversion channel 73.

[0046] like Figure 3 As shown, the limiting material guiding mechanism 8 includes an annular material guiding platform 81, a slide groove 82 and a slider 83, wherein the annular material guiding platform 81 is slidably arranged on the inner side of the processing cylinder 1 along the vertical direction, and the annular material guiding platform 81 is fitted on the top of the partition 52, and there are two slide grooves 82 and two sliders 83, and the two slide grooves 82 are respectively opened on both sides of the annular material guiding platform 81, and the two sliders 83 are respectively slidably arranged on the inner sides of the two slide grooves 82, and they are both fixedly connected to the inner wall of the processing cylinder 1.

[0047] By setting up the above structure, when the first rubber roller 46 stirs the rice on the top of the partition 52, the annular guide platform 81 can guide the rice so that the rice is close to the sieve hole 54, thereby allowing small rice particles to pass through the sieve hole 54 faster and fall. Example

[0048] The method specifically comprises the following steps:

[0049] S1. Selenium-rich rice material is added into the processing drum 1 through the top opening of the feed hopper 2. The rice material then falls on the top of the partition 52. Some small particles of rice material directly pass through the screening holes 54 and fall on the top of the support plate 71. At this time, the drive motor 32 is started;

[0050] S2. After the driving motor 32 is started, the driving screw 36 is driven to rotate via the rotating shaft 31. When the driving screw 36 rotates, the threaded sleeve 51 is continuously lowered. When the threaded sleeve 51 is lowered, the partition 52 is continuously lowered. In the process of driving the partition 52 to be lowered, the driving screw 36 drives the first rotating disk 41 to rotate continuously via the driving screw 36. The first rotating disk 41 drives the connecting rod 44 to rotate via the first telescopic rod 42 that is continuously extended by the second spring 43. Then, the connecting rod 44 drives the first rubber roller 46 via the first roller sleeve 45 to continuously stir the rice material located inside the partition 52, so that the small-particle rice material can quickly fall to the top of the supporting plate 71.

[0051] S3, when the threaded sleeve 51 drives the partition 52 to descend, the compressed first spring 37 gradually resets. After the first spring 37 resets, as the partition 52 continues to descend, the first spring 37 drives the first limit block 38 to rise relatively. When the partition 52 descends a distance reaching a first threshold, the screening of large-grain rice raw materials and small-grain rice raw materials is completed, and the first limit block 38 releases the limit on the second limit block 57. At this time, under the push of the third spring 56, the partition 52 causes the middle plate 53 to move inward. At this time, the screening holes 54 on the middle plate 53 are no longer collinear with the screening holes 54 on the partition 52. At the same time, the multiple output ends of the gas diversion pipe 55 are respectively collinear with the multiple screening holes 54 on the top of the partition 52.

[0052] S4: During the subsequent descent of the partition 52, the driving screw 36 continuously drives the first rubber roller 46 to rotate via the first rotating disk 41, and the rotating shaft 31 continuously drives the second rubber roller 63 to rotate via the second rotating disk 61, thereby kneading the rice raw materials on the top of the partition 52 and the top of the supporting plate 71 respectively. In addition, when the partition 52 descends, the annular guide platform 81 synchronously descends along the slider 83, maintaining a state of contact with the top of the partition 52;

[0053] S5. When the partition 52 has descended a distance that reaches a second threshold, the slider 83 moves to the top of the inner side of the chute 82. At the same time, the air supply hole 35 located above enters the inner side of the partition 52. The air flow inputted into the rotating shaft 31 by the air supply pipe 34 enters the interior of the partition 52 through the air supply hole 35. Then, it enters the sieve hole 54 at the top of the partition 52 through the gas diversion pipe 55 and is ejected from the top opening. At this time, the rice remaining in the sieve hole 54 at the top of the partition 52 is flushed out, and the rice husks contained in the rice raw material are also discharged through the waste pipe on the right side of the processing cylinder 1 under the influence of the air flow.

[0054] S6. When the partition 52 has descended a distance that reaches the third threshold, the second telescopic rod 76 is shortened to its shortest due to the descending of the partition 52. Subsequently, as the partition 52 continues to descend, the partition 52 begins to push the supporting plate 71 downward through the second telescopic rod 76. When the partition 52 has descended a distance that reaches the fourth threshold, the air supply hole 35 located below enters the inner side of the cavity 72. At this time, the air flow passes through the gas diversion channel 73 to blow the rice husks in the rice pile on the top of the supporting plate 71, and the rice husks are also discharged through the waste pipe on the right side of the processing cylinder 1 under the influence of the air flow.

[0055] S7. When the partition 52 descends to a fourth threshold, the partition 52, the supporting plate 71 and the two discharge ports on the processing drum 1 are collinear. At this time, the rice on the top of the partition 52 and the top of the supporting plate 71 are discharged through the two discharge ports respectively.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A selenium-rich rice deep processing equipment, characterized in that: It includes a processing cylinder, a feed hopper is fixedly nested on the top of the processing cylinder, an air intake drive mechanism is provided inside the processing cylinder and inside the feed hopper, a first kneading mechanism, an opening and closing type screening mechanism and a second kneading mechanism are sequentially provided on the outside of the air intake drive mechanism from top to bottom, a lifting support mechanism is provided below the second kneading mechanism, and a limited position guide mechanism is provided on the outside of the top of the opening and closing type screening mechanism; The air intake drive mechanism includes a rotating shaft, a drive motor, a drive gear, an air supply pipe, an air supply hole, a drive screw, a first spring and a first limit block; The rotating shaft passes through the bottom of the processing cylinder and is rotatably connected to the processing cylinder through a bearing. The driving motor is fixedly arranged on the right side of the bottom of the processing cylinder. Two driving gears are provided. The rotating shaft is transmission-connected to the driving motor through the two driving gears. The air supply pipe is rotatably connected to the bottom end of the rotating shaft through a rotating joint. Two air supply holes are provided. Both air supply holes are opened on the front of the rotating shaft. The driving screw is fixedly arranged on the top end of the rotating shaft. The first spring is sleeved on the outside of the rotating shaft and is rotatably connected to the driving screw through a bearing. The first limit block is slidably sleeved on the outside of the rotating shaft and is fixedly connected to the first spring. The opening and closing type screening mechanism includes a threaded sleeve, a partition, an intermediate plate, screening holes, a gas diversion pipe, a third spring and a second limit block; The threaded sleeve is sleeved on the outside of the driving screw and is threadedly connected to the driving screw. The partition is slidably nested in the inner side of the processing cylinder along the vertical direction. The partition is fixedly sleeved on the bottom outside the threaded sleeve. There are two intermediate plates, gas diverter tubes, third springs and second limit blocks. There are multiple sieve holes. The two intermediate plates are respectively slidably arranged on both sides of the interior of the partition. Multiple sieve holes are respectively penetrated on the top of the partition, the bottom of the partition and the intermediate plate. The two gas diverter tubes are respectively fixedly nested inside the two intermediate plates. The input end of the gas diverter tube extends to the inside of the intermediate plate. The multiple output ends of the gas diverter tubes extend to the top of the intermediate plate. The two third springs are respectively fixedly connected to the outsides of the two intermediate plates and are both fixedly connected to the inner walls of the adjacent partitions. The two second limit blocks are respectively fixedly arranged on the inner bottoms of the two intermediate plates and are both in contact with the first limit block; The first kneading mechanism includes a first rotating disk and two sets of kneading components, which are fixedly arranged on both sides of the bottom of the first rotating disk, and each set of kneading components includes a first telescopic rod, a second spring, a connecting rod, a first roller sleeve and a first rubber roller; The first rotating disk is fixedly sleeved on the top outer side of the driving screw, the inner shaft of the first telescopic rod is fixedly connected to the first rotating disk, the second spring is sleeved on the outer side of the first telescopic rod, the connecting rod is fixedly set at the bottom of the first telescopic rod, the first roller sleeve is fixedly set at the bottom end of the connecting rod, and the first rubber roller is rotatably nested on the inner side of the first roller sleeve.

2. A selenium-rich rice deep processing equipment according to claim 1, characterized in that: The second kneading mechanism includes a second rotating disk, a second roller sleeve and a second rubber roller; The second rotating disk is fixedly sleeved on the outside of the rotating shaft. Two second roller sleeves and two second rubber rollers are provided. The two second roller sleeves are respectively fixed on both sides of the bottom of the second rotating disk, and the two second rubber rollers are respectively rotatably nested inside the two second roller sleeves.

3. A selenium-rich rice deep processing equipment according to claim 2, characterized in that: The lifting support mechanism includes a support plate, a cavity, a gas diversion channel, a support rod, a fourth spring, a second telescopic rod and an annular connecting seat; The supporting plate is slidingly sleeved on the outside of the rotating shaft and slides into contact with the inner wall of the processing cylinder. The cavity is opened at the center of the supporting plate. The gas diversion channel is opened on the outside of the supporting plate and is connected with the cavity. There are two support rods, fourth springs, second telescopic rods and annular connecting seats. The two support rods are respectively fixed on both sides of the bottom of the supporting plate, and both slide through the inner wall of the processing cylinder and extend to the outside of the processing cylinder. The two fourth springs are respectively sleeved on the outside of the two support rods. The two second telescopic rods are respectively slid through on both sides of the top of the second rotating disk. The two annular connecting seats are respectively fixed on the top of the two second telescopic rods and the bottom of the two second telescopic rods. The annular connecting seat located above is rotatably nested at the bottom of the partition through a bearing, and the annular connecting seat located below is rotatably nested at the top of the supporting plate through a bearing.

4. A selenium-rich rice deep processing equipment according to claim 3, characterized in that: The position limiting material guiding mechanism includes an annular material guiding platform, a slide groove and a slider; The annular material guide platform is slidably arranged on the inner side of the processing cylinder along the vertical direction. The annular material guide platform is fitted on the top of the partition. There are two slide grooves and two sliders. The two slide grooves are respectively opened on both sides of the annular material guide platform. The two sliders are respectively slidably arranged on the inner sides of the two slide grooves, and they are fixedly connected to the inner wall of the processing cylinder.

5. A method for deep processing of selenium-enriched rice, characterized in that: The method is implemented using the selenium-rich rice deep processing equipment according to claim 4, which specifically includes the following steps: S1. Selenium-rich rice is added to the processing drum through the top opening of the feed hopper. The rice then falls on the top of the partition. Some small rice particles pass through the sieve holes and fall on the top of the support plate. The drive motor is then started. S2. After the driving motor is started, the driving screw is driven to rotate via the rotating shaft. When the driving screw rotates, the threaded sleeve is continuously lowered. When the threaded sleeve is lowered, the partition is continuously lowered. In the process of driving the partition to be lowered, the driving screw drives the first rotating disk to rotate continuously via the driving screw. The first rotating disk drives the connecting rod to rotate via the first telescopic rod that is continuously extended by the second spring. The connecting rod then drives the first rubber roller via the first roller sleeve to continuously stir the rice raw material located inside the partition, so that the small-particle rice raw material can quickly fall to the top of the supporting plate. S3. When the threaded sleeve drives the partition to descend, the compressed first spring gradually resets. After the first spring resets, as the partition continues to descend, the first spring drives the first limit block to rise relatively. When the partition descends a distance that reaches a first threshold, the screening of large-grain rice raw materials and small-grain rice raw materials is completed, and the first limit block releases the limit on the second limit block. At this time, under the push of the third spring, the third spring moves the middle plate inward. At this time, the screening holes on the middle plate are no longer collinear with the screening holes on the partition, and at the same time, the multiple output ends of the gas diversion pipe are respectively collinear with the multiple screening holes on the top of the partition; S4. During the subsequent descent of the partition, the driving screw continuously drives the first rubber roller to rotate via the first rotating disk, and the rotating shaft continuously drives the second rubber roller to rotate via the second rotating disk, thereby kneading the rice raw materials on the top of the partition and the top of the supporting plate respectively. In addition, when the partition descends, the annular material guide platform synchronously descends along the slider to maintain a state of contact with the top of the partition; S5. When the partition has descended a distance that reaches a second threshold, the slider moves to the top of the chute. Simultaneously, the air supply hole located above enters the inner side of the partition. Air flow input from the air supply pipe into the rotating shaft enters the interior of the partition through the air supply hole, then passes through the gas diversion pipe into the sieve holes at the top of the partition and is ejected from the top opening. The rice remaining inside the sieve holes at the top of the partition is flushed out, and the rice husks contained in the rice raw material are also discharged through the waste pipe on the right side of the processing cylinder under the influence of the air flow. S6. When the partition has descended a distance that reaches a third threshold, the second telescopic rod is shortened to its shortest due to the descending of the partition. Subsequently, as the partition continues to descend, the partition begins to push the supporting plate downward via the second telescopic rod. When the partition has descended a distance that reaches a fourth threshold, the air supply hole located below enters the inner side of the cavity. At this time, the air flow blows the rice husks in the rice pile on top of the supporting plate through the gas diversion channel, and the rice husks are also discharged through the waste pipe on the right side of the processing cylinder under the drive of the air flow. S7. When the partition descends to a fourth threshold, the partition, the supporting plate and the two discharge ports on the processing cylinder are collinear. At this time, the rice on the top of the partition and the top of the supporting plate are discharged through the two discharge ports respectively.

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