Rice raw material drying system for rice processing

Abstract

The invention relates to the technical field of grain processing, and particularly provides a rice raw material drying system for rice processing. Comprising a cylindrical bin, a plurality of separation discs, a plurality of drying bins and a driving mechanism for driving the plurality of drying bins to synchronously rotate; the drying stock bin comprises a stock bin supporting plate which is in lap joint with the lower separation disc, a plurality of annular inserting grooves are fixed to the stock bin supporting plate, floating material chambers are movably inserted into the annular inserting grooves, and a collecting hopper is assembled among the top ends of the floating material chambers in a sliding fit mode; the collection hopper is rotationally mounted at the bottom of the upper separation disc through a bearing and dispersedly guides grains into each floating material chamber; according to the drying system, the effective drying time of the grains is greatly prolonged, the defect that a drying channel is short is overcome, and the drying effect of the grains is guaranteed; in addition, heat source distribution is optimized, the effects of airflow flowing and timely water vapor discharging are enhanced, the effective utilization rate of a heat source is increased, and relative energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of grain processing, and specifically provides a drying system for rice processing paddy raw materials. Background Art

[0002] During the rice processing, in order to facilitate the long-term storage of paddy, avoid mildew and germination, drying of paddy is an essential operation. Generally, professional drying equipment or systems are used for drying. Large drying equipment can achieve sufficient drying of paddy. However, in small-scale agricultural production, it is generally more suitable to use small drying equipment for drying paddy. Small drying equipment usually has the characteristics of compact structure design, small occupied space, flexible operation and movement. However, the following disadvantages also exist:

[0003] (1) Due to the compact structure of small drying equipment, the drying channel is usually short, which means that the effective drying time of paddy during actual drying is short. When the moisture content of paddy is high, it may cause poor drying effect of paddy and require multiple repeated drying, thus affecting the drying efficiency.

[0004] (2) The heat sources inside small drying equipment mostly adopt an overall distribution design, resulting in unreasonable and non-concentrated heat source distribution, reducing the effective utilization rate of heat sources and indirectly increasing the drying energy consumption. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a drying system for rice processing paddy raw materials to solve the problems mentioned in the above background art.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A drying system for rice processing paddy raw materials, comprising: a cylindrical silo; a plurality of partition plates, fixedly distributed at intervals in the vertical direction inside the cylindrical silo; a plurality of drying bins, vertically arranged in sequence and disposed between adjacent partition plates; the drying bin includes a bin support plate lapped on the lower partition plate, and a plurality of circumferentially distributed annular slots are fixed on the bin support plate. A floating material chamber is movably inserted into each annular slot. The tops of the plurality of floating material chambers are jointly slidably fitted with an aggregate hopper. The aggregate hopper is rotationally installed at the bottom of the upper partition plate through a bearing and dispersedly introduces the grain material into each floating material chamber; a plurality of material holes corresponding to the plurality of floating material chambers one by one are opened on the partition plate; and a driving mechanism, including a driving shaft vertically passing through the plurality of partition plates and the plurality of aggregate hoppers along the central axis of the cylindrical silo. The bin support plate is sleeved and fixed on the driving shaft. A drying air flow channel is arranged inside the driving shaft and communicated to each floating material chamber; when the driving shaft rotates and drives the drying bin to rotate, the floating material chamber rotates and vibrates up and down synchronously. When the bottom port of the floating material chamber partially coincides with the material hole, the grain material is heated and dried while undergoing layer-by-layer material falling.

[0007] Preferably, the floating material chamber includes a ventilation framework that is movably inserted into the annular slot. A chamber net forming a cylindrical structure is vertically sleeved on the ventilation framework. A plurality of air pipes are horizontally connected inside the chamber net. The ventilation framework communicates with the drive shaft and conveys the drying air flow into each air pipe. A plurality of air holes for exhausting air outward are provided on the air pipes.

[0008] Preferably, the floating material chamber further includes a pressing ring fixed to the top end of the ventilation framework. The chamber net is clamped and fixed between the pressing ring and the ventilation framework. A guide sleeve corresponding to each floating material chamber in one-to-one correspondence is provided at the bottom end of the aggregate hopper. The pressing ring is slidably installed in the corresponding guide sleeve, and a plurality of elastic members contacting the bottom end of the aggregate hopper are fixed to the top end of the pressing ring. A floating rod vertically passing through the annular slot and the bin support plate is fixed to the bottom of the ventilation framework. A cam ring with a circumferentially concave-convex and undulating upper end surface is provided on the dividing plate. The floating rod is in pressing contact with the upper end surface of the cam ring.

[0009] Preferably, the ventilation framework includes an annular air passage movably inserted into the annular slot. The annular air passage communicates with the drive shaft. A plurality of vertically distributed air passages distributed in an annular manner are fixedly connected to the upper end of the annular air passage. A plurality of air pipes are communicated between two vertically distributed air passages in a partially horizontally opposite position.

[0010] Preferably, a central sleeve sleeved and fixed with the drive shaft is provided at the center of the bin support plate. A plurality of frame-shaped wing plates are circumferentially distributed around the center on the bin support plate. A plurality of annular slots are fixedly arranged on the plurality of frame-shaped wing plates in one-to-one correspondence and are all inserted and installed on the central sleeve. The parts of the central sleeve and the annular slots between the drive shaft and the annular air passage are continuously horizontally penetrated to form a passage.

[0011] Preferably, a feed hopper is detachably installed at the top of the cylindrical bin, and the bottom of the feed hopper is lapped on the dividing plate at the uppermost position. A plurality of feed chambers corresponding to the plurality of material holes in one-to-one correspondence are provided in the feed hopper. The drive shaft vertically penetrates the feed hopper along the central axis.

[0012] Preferably, positioning card slots corresponding to each vertical air passage are provided on the chamber net, and the vertical air passages are distributed on the periphery of the chamber net.

[0013] Preferably, a plurality of groups of exhaust ports corresponding to the plurality of drying bins are vertically distributed on the cylindrical bin, and a plurality of exhaust ports in each group are circumferentially distributed.

[0014] Preferably, the port for introducing the drying air flow on the drive shaft is provided at the top end.

[0015] The above technical solution has the following advantages or beneficial effects: The present invention provides a drying system for rice processing paddy raw materials. A plurality of partition plates are arranged in a cylindrical silo to form a multi-stage space, and drying bins are assembled in each stage of partition space to form a multi-stage drying layer. A plurality of floating chambers are arranged circumferentially in the drying bins to realize the dispersed storage of grain materials. The plurality of drying bins are synchronously driven and rotated by a driving mechanism, thereby realizing a drying and discharging method of intermittent rotation and discharging in the circumferential direction and layer-by-layer discharging in the axial direction, greatly prolonging the effective drying time of the grain materials, making up for the deficiency of the short drying channel, and ensuring the drying effect of the grain materials; In addition, the layout mode of the overall distribution of the drying heat source is changed. By adopting the way of air duct connection between the driving shaft and the floating chamber, the drying air flow is enabled to enter from the center and be accurately dispersed and circulated into the grain material layers of each floating chamber, optimizing the heat source distribution, enhancing the air flow and the effect of timely discharging water vapor, improving the effective utilization rate of the heat source, and reducing the relative energy consumption; During the rotation of the drying bin, the floating chamber is driven to vibrate up and down under the cooperation of the partition plate, enhancing the disturbance of the grain materials and promoting the discharge of water vapor, and also strengthening the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the present invention and its features, shape and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale, and the emphasis is on showing the gist of the present invention.

[0017] Figure 1 is a three-dimensional sectional view of a drying system for rice processing paddy raw materials provided by the present invention.

[0018] Figure 2 is a three-dimensional structural diagram of the assembly and cooperation of the drying bin, the partition plate, the aggregate hopper and the driving shaft.

[0019] Figure 3 is a three-dimensional structural diagram of the feed hopper.

[0020] Figure 4 is a three-dimensional structural diagram of the partition plate.

[0021] Figure 5 is a three-dimensional structural diagram of the aggregate hopper.

[0022] Figure 6 is a three-dimensional structural diagram of the assembly of the annular slot and the bin support plate.

[0023] Figure 7 is a three-dimensional structural diagram of the bin support plate.

[0024] Figure 8 is a three-dimensional structural diagram of the floating chamber.

[0025] Figure 9It is a three-dimensional sectional view of the floating material chamber.

[0026] Figure 10 It is a three-dimensional structure diagram of the ventilation skeleton.

[0027] Figure 11 It is a three-dimensional sectional view of the bin net.

[0028] Figure 12 It is a three-dimensional structure diagram of the drive shaft.

[0029] In the figure: 1, cylindrical bin; 11, feed hopper; 111, feed chamber; 12, blanking hopper; 13, exhaust port; 2, partition plate; 21, cam ring; 22, material hole; 23, aggregate hopper; 231, material guide sleeve; 3, drying bin; 31, bin support plate; 311, central sleeve; 312, frame-shaped wing plate; 32, annular slot; 321, insertion part; 4, floating material chamber; 41, ventilation skeleton; 411, annular air duct; 412, vertical air duct; 413, floating rod; 42, bin net; 421, positioning card slot; 422, air pipe; 43, pressing ring; 431, vibration spring; 5, drive mechanism; 51, support frame; 52, drive shaft; 521, air port. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as Figure 1 、 Figure 3 and Figure 4As shown in the figure, a drying system for rice processing paddy raw materials includes a cylindrical silo 1 as the outer shell. In order to achieve vertical zoning, four disc-shaped partition plates 2 are installed at equal intervals along the vertical direction inside the cylindrical silo 1. For the convenience of positioning and stable installation, fixing rings (the fixing rings are not shown in the attached drawings) can be welded at each installation position of the partition plate 2 inside the cylindrical silo 1. The partition plate 2 can be directly placed on the corresponding fixing ring in a lapped manner and can be locked and fixed by bolts. Four material holes 22 are evenly distributed around the center on the partition plate 2. The material holes 22 are in the shape of a long rectangle. An annular cam ring 21 is provided near the edge of the upper end surface of the partition plate 2. The upper end surface of the cam ring 21 has a uniformly concave-convex structure. The top of the cylindrical silo 1 is detachably installed with a feed hopper 11 through bolts. The feed hopper 11 extends into the cylindrical silo 1 and its bottom is lapped on the partition plate 2 at the uppermost position. Four feed chambers 111 are provided in the feed hopper 11 and are in one-to-one correspondence with the four material holes 22. The material dropping port of the feed chamber 111 is aligned with the material hole 22, which can achieve accurate material dropping.

[0033] As Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown in the figure, three drying bins 3 are vertically distributed inside the cylindrical silo 1. The drying bins 3 are assembled between adjacent partition plates 2, that is, the three drying bins 3 are correspondingly located in the three bin section spaces separated by the four partition plates 2. The drying bin 3 includes a bin support plate 31 lapped on the lower partition plate 2. The bin support plate 31 is used as a supporting framework. A central sleeve 311 is provided at the center of the bin support plate 31. Four frame-shaped wing plates 312 are evenly distributed around the center on the bin support plate 31. Ring-shaped slots 32 are fixed on the four frame-shaped wing plates 312 by screws. Rectangular windows for open material dropping are provided on the frame-shaped wing plates 312. The ring-shaped slots 32 avoid the rectangular windows, and the groove body of the ring-shaped slots 32 extends around the edge of the rectangular window. Insertion parts 321 are provided on the ring-shaped slots 32. Four vertically insertable slots are evenly distributed in the circumferential direction on the central sleeve 311. The ring-shaped slots 32 are inserted into the corresponding slots on the central sleeve 311 through the insertion parts 321. The ring-shaped slots 32 can achieve rapid positioning and assembly and can improve the stability of assembly. Rectangular openings are horizontally penetrated in both the insertion parts 321 and the slots of the central sleeve 311, and the two rectangular openings are in a fitting and docking state.

[0034] As Figure 2 and Figure 5 As shown in the figure, floating material chambers 4 for temporarily storing grain during the drying process are correspondingly and movably inserted into the four ring-shaped slots 32. An aggregate hopper 23 is assembled among the tops of the four floating material chambers 4. The aggregate hopper 23 is rotatably installed at the bottom of the upper partition plate 2 through a bearing and dispersedly introduces the grain into each floating material chamber 4.

[0035] AsFigure 2 , Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown in Figure 10 and Figure 11 , the floating material chamber 4 includes a ventilation framework 41. The ventilation framework 41 includes an annular air passage 411 movably inserted into the annular slot 32. The annular air passage 411 communicates with the rectangular opening of the insertion portion 321. At the upper end of the annular air passage 411, a plurality of vertically distributed air passages 412 are fixedly connected in an annular manner. In this embodiment, as shown in Figure 10 , two columns of vertically distributed air passages 412 that are radially parallel to the bin support plate 31 are arranged in a one-to-one corresponding manner, and the other two vertically distributed air passages 412 are distributed between the two columns of vertically distributed air passages 412. A bin net 42 is vertically sleeved on the ventilation framework 41. The main body of the bin net 42 is a cylindrical metal net structure. The bin net 42 is provided with positioning card slots 421 corresponding to and clamped with each vertically distributed air passage 412. The vertically distributed air passages 412 are distributed on the periphery of the bin net 42. In each of the two opposite columns of the bin net 42, a plurality of vertically and uniformly distributed air pipes 422 are welded in cooperation with each pair of vertically distributed air passages 412 at corresponding positions. Both ends of the air pipes 422 are open. On each vertically distributed air passage 412, air holes for docking with the ports of the air pipes 422 are provided opposite to each air pipe 422 that cooperates with it. And when the bottom end of the bin net 42 presses against the annular air passage 411, the air holes of the vertically distributed air passages 412 are just in a docking state with the ports of the air pipes 422. In this embodiment, in order to improve the docking sealing effect, a rubber layer is attached in the positioning card slots 421. A plurality of air holes for exhausting air outward are provided on the air pipes 422 (the air holes are not shown in the figure).

[0036] As Figure 2 , Figure 8 and Figure 9 shown, a top pressure ring 43 is fixedly connected by screws between the tops of a plurality of vertically distributed air passages 412; the bin net 42 is clamped and fixed between the top pressure ring 43 and the annular air passage 411; at the bottom end of the aggregate hopper 23, a guide sleeve 231 corresponding to and cooperating with each floating material chamber 4 is provided. The top pressure ring 43 is slidably installed in the corresponding guide sleeve 231, and a plurality of vibration springs 431 in contact with the bottom end of the aggregate hopper 23 are welded to the top end of the top pressure ring 43. The plurality of vibration springs 431 are distributed along the circumferential direction of the top pressure ring 43. A floating rod 413 vertically passing through the annular slot 32 and the bin support plate 31 is welded to the bottom of the annular air passage 411. A ball is movably embedded at the bottom end of the floating rod 413. Under the elastic force of the plurality of vibration springs 431, the floating rod 413 is in pressing and rolling contact with the upper end surface of the cam ring 21 through the ball.

[0037] As Figure 1 , Figure 2 and Figure 12 ​​As shown in the figure, a driving mechanism 5 for driving three drying bins 3 to rotate synchronously is assembled inside the silo 1. A funnel-shaped blanking hopper 12 is provided at the bottom end of the silo 1. The driving mechanism 5 includes a support frame 51 fixed in the blanking hopper 12 by bolts and a driving shaft 52 vertically rotatably mounted on the support frame 51 through bearings. The driving shaft 52 is successively divided into a circular tube section, a square tube section, and a circular shaft section from top to bottom. The driving shaft 52 is disposed along the central axis of the silo 1 as a whole. The circular tube section vertically penetrates through the feed hopper 11 and is rotatably mounted on the feed hopper 11 through bearings. The square tube section vertically passes through the four partition plates 2 and the three aggregate hoppers 23. The bin support plate 31 is sleeved and fixed on the square tube section through a central sleeve 311. The circular shaft section is rotatably mounted on the support frame 51. A driving motor can be mounted on the blanking hopper 12 through a motor fixing bracket, and the circular shaft section is fixedly connected to the output shaft of the driving motor. It should be noted that the driving motor is not shown in the drawings. In the present invention, mainly the externally heated drying air flow is introduced into the device to dry the paddy grain material. Both the circular tube section and the square tube section are pipe fittings and are in an up-and-down communication state. The top end of the circular tube section is open and serves as an air inlet port, which can be externally connected to a pipeline through an existing rotary pipe joint for introducing the heated drying air flow. Three groups of air ports 521 corresponding to the three drying bins 3 one by one are axially distributed on the square tube section. Each group of air ports 521 has four air ports 521, and the four air ports 521 are opened on the four side surfaces of the square tube section. The air ports 521 are communicated with the rectangular openings of the central sleeve 311 at the corresponding positions. The drying air flow is communicated to each floating chamber 4 through the driving shaft 52. Specifically, the drying air flow introduced into the driving shaft 52 is discharged through the air ports 521 and leads to the inner cavity of the annular air duct 411 through the two rectangular openings on the central sleeve 311 and the annular slot 32, and then is dispersed and circulated into each vertical air duct 412, and is discharged into the floating chamber 4 through the air holes or indirectly through the air pipe 422.

[0038] As Figure 1 shown, three groups of exhaust ports 13 corresponding to the three drying bins 3 one by one are vertically distributed on the silo 1, and four exhaust ports 13 in each group are circumferentially distributed. All the exhaust ports 13 can be connected and docked to the same main pipe through hoses, and the main pipe can be docked to an exhaust fan. The uniformly distributed exhaust ports 13 can, on the one hand, enhance the uniform dispersion and circulation of the air flow inside the silo 1 and optimize the distribution of the drying air flow, and on the other hand, can timely discharge the air flow mixed with water vapor outward to improve the drying efficiency.

[0039] Regarding the description of the equipment system assembly, the assembly of the driving mechanism 5 can be carried out first so that the driving shaft 52 is at the central axis of the silo 1, and then the four partition plates 2, the three aggregate hoppers 23, and the three drying bins 3 are assembled in sequence from bottom to top, and finally the feed hopper 11 is assembled.

[0040] The present invention provides a drying system for rice processing paddy raw materials, which can perform continuous and automatic drying operations on paddy materials. The specific operation process is as follows:

[0041] Preparation stage

[0042] Preheat the drying air flow in advance and lead it into the drive shaft 52. Start the equipment, the drive shaft 52 rotates, and drives the bin support plate 31 to rotate accordingly, so that the three drying bins 3 rotate synchronously and uniformly, and are in a state of waiting for operation.

[0043] Drying stage

[0044] Continuously convey the paddy materials to the feed hopper 11 through an external conveyor. The feed hopper 11 projects the materials through the four material holes 22 of the partition plate 2 into the lower aggregate hopper 23 through the four feed chambers 111. The four feed chambers 111 initially disperse the fed materials, and indirectly disperse them into the four floating chambers 4 below through the four guide sleeves 231 of the aggregate hopper 23. The four floating chambers 4 further disperse the materials to prevent the materials from being piled up concentratedly. During the process of the three drying bins 3 being driven by the drive shaft 52 to rotate synchronously, on the one hand, the bin support plate 31 rotates along the disk surface of the partition plate 2. When there is partial overlap between the rectangular window of the frame-shaped wing plate 312 and the material hole 22, the materials in the floating chamber 4 will fall through the material hole 22 from the rectangular window to the lower-level aggregate hopper 23 below. When they are completely misaligned, the bin support plate 31 closes the rectangular window. Thus, during the rotation process, the materials will achieve intermittent layer-by-layer falling, thereby prolonging the drying time of the materials and ensuring the drying effect. On the other hand, during the rotation process, the floating rod 413 rolls along the cam ring 21, and the floating rod 413 moves up and down passively. Thus, with the elastic force of the vibration spring 431, the floating chamber 4 realizes up-and-down reciprocating vibration with the annular slot 32 and the guide sleeve 231 as the up-and-down guides. The materials will be vibrated passively, and the air pipe 422 can be used as a disturbing rod to enhance the disturbance of the material layer, and synchronously introduce the drying air flow precisely into the material layer, and strengthen the air flow circulation in the material layer to promote the discharge of water vapor; in addition, during the rotation and vibration processes, the impurities and dust in the materials will be sieved to the outside through the mesh holes of the chamber net 42, and part of the dust will be discharged outwards synchronously with the air flow. The materials dried through layer-by-layer falling finally complete the falling and collection through the discharge hopper 12.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0046] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0047] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A drying system for rice processing paddy raw materials, characterized in that, Comprising: A silo; A plurality of partition plates, which are fixedly distributed at intervals in the vertical direction inside the silo; A plurality of drying bins, which are vertically arranged in sequence and are arranged between adjacent partition plates; the drying bin includes a bin support plate lapped on the lower partition plate, and a plurality of circumferentially distributed annular slots are fixed on the bin support plate. A floating chamber is movably inserted into each annular slot. A collecting hopper is slidably and cooperatively assembled between the tops of the plurality of floating chambers. The collecting hopper is rotatably installed at the bottom of the upper partition plate through a bearing and dispersedly introduces the grain material into each floating chamber; a plurality of material holes corresponding to the plurality of floating chambers are provided on the partition plate; And a driving mechanism, which includes a driving shaft vertically passing through the plurality of partition plates and the plurality of collecting hoppers along the central axis of the silo. The bin support plate is sleeved and fixed on the driving shaft. A drying air flow channel is arranged inside the driving shaft and communicates with each floating chamber; when the driving shaft rotates and drives the drying bin to rotate, the floating chamber rotates and vibrates up and down synchronously. When the bottom port of the floating chamber partially coincides with the material hole, the grain material is heated and dried while falling layer by layer.

2. A rice processing paddy raw material drying system according to claim 1, characterized in that: The floating chamber includes a ventilation skeleton movably inserted into the annular slot. A chamber net forming a cylindrical structure is vertically sleeved on the ventilation skeleton. A plurality of air pipes are horizontally connected inside the chamber net. The ventilation skeleton communicates with the driving shaft and communicates the drying air flow into each air pipe. A plurality of air holes for exhausting air outwards are provided on the air pipe.

3. A rice processing paddy raw material drying system according to claim 2, characterized in that: The floating chamber further includes a top pressing ring fixed to the top end of the ventilation skeleton. The chamber net is clamped and fixed between the top pressing ring and the ventilation skeleton; a guide sleeve corresponding to each floating chamber is provided at the bottom end of the collecting hopper. The top pressing ring is slidably installed in the corresponding guide sleeve, and a plurality of elastic members contacting the bottom end of the collecting hopper are fixed to the top end of the top pressing ring. A floating rod vertically passing through the annular slot and the bin support plate is fixed to the bottom of the ventilation skeleton. A cam ring with a circumferentially concave and convex upper end surface is provided on the partition plate. The floating rod is in pressing contact with the upper end surface of the cam ring.

4. A rice processing paddy raw material drying system according to claim 2, characterized in that: The ventilation skeleton includes an annular air duct movably inserted into the annular slot. The annular air duct communicates with the driving shaft; a plurality of vertically distributed air ducts distributed in a ring are fixedly connected to the upper end of the annular air duct. A plurality of air pipes are communicated between two vertically distributed air ducts in a partially horizontal relative position.

5. A rice processing paddy raw material drying system according to claim 4, characterized in that: A central sleeve sleeved and fixed to the driving shaft is provided at the center of the bin support plate. A plurality of frame-shaped wing plates are circumferentially distributed around the center on the bin support plate; the plurality of annular slots are fixedly corresponding to the plurality of frame-shaped wing plates and are all inserted and installed on the central sleeve; the parts of the central sleeve and the annular slot located between the driving shaft and the annular air duct are continuously horizontally penetrated to form a channel.

6. A rice processing paddy raw material drying system according to claim 1, characterized in that: A feed hopper is detachably installed at the top of the silo, and the bottom of the feed hopper is lapped on the partition plate at the uppermost position. A plurality of feed chambers corresponding to the plurality of material holes are provided in the feed hopper; the driving shaft vertically penetrates through the feed hopper along the central axis.

7. A rice processing paddy raw material drying system according to claim 4, characterized in that: Positioning card slots corresponding to each vertical air duct are provided on the chamber net. The vertical air ducts are distributed on the periphery of the chamber net.

8. A rice processing paddy raw material drying system according to claim 1, characterized in that: A plurality of groups of exhaust ports corresponding to the plurality of drying bins are vertically distributed on the silo, and the plurality of exhaust ports in each group are circumferentially distributed.

9. The drying system for paddy rice raw materials in rice processing according to claim 1, wherein: The port for introducing the drying air flow on the driving shaft is arranged at the top end.

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