Long-grain type rice processing equipment and rice processing technology

Abstract

The invention is applicable to the technical field of rice processing, and provides long-grain type rice processing equipment and a processing technology, and the long-grain type rice processing equipment comprises a water bath tank, a lifting and drying mechanism, a shelling mechanism and the like. During processing, firstly, rice is soaked in a water bath, so that rice hulls are separated from the rice, and the surface toughness of the rice is improved; the soaked rice enters the lifting and drying mechanism through the conveying structure and is dried in the lifting process, and hot air can be recycled to maintain the water temperature of the water bath; the dried rice enters a double-friction hulling cavity in the hulling mechanism, efficient hulling is achieved through cooperation of a middle driving body, an outer hulling piece, an inner hulling piece and a middle hulling piece, and the integrity of the hulled rice is improved. And screening and drying the hulled rice husks and rice to obtain the hulled long-grain type rice. By optimizing the processing flow and the equipment structure, the broken rice rate of the long-grain type rice is effectively reduced, and the processing efficiency and the rice quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain processing, and more particularly to long-grain rice processing equipment and a rice processing process. Background Art

[0002] Different varieties of long-grain rice exhibit significant differences in physical properties (such as grain length, width, and aspect ratio) and chemical composition (such as amylose content). This makes it difficult to adapt the same processing equipment and process parameters to all varieties during processing, leading to inconsistent processing results. For example, some varieties of rice are harder and may require greater milling pressure during milling, while other varieties may be softer and more prone to breaking even with the same milling pressure.

[0003] Rice milling is a critical step in rice processing. Due to the elongated shape of long-grain rice, it is more susceptible to external forces and breakage during processing. However, existing rice milling equipment is often inadequately designed to accommodate the specific characteristics of long-grain rice. For example, the shape and arrangement of the rollers in conventional rice mills may not be well adapted to the shape of long-grain rice, resulting in uneven force distribution during milling, easily causing rice breakage and surface damage. Furthermore, the husk of unhulled rice is tightly bound to the rice grains within, especially when both are equally dry. The husk clings tightly to the surface of the rice grains, making separation difficult. After hulling, long-grain rice is hard, brittle, and lacks toughness. If hulled rice is not promptly removed and remains in the rollers of conventional rice mills, it can easily break and break. This results in a high rate of rice breakage during the hulling process in conventional rice mills, which not only affects the rice's appearance but also reduces its commercial value. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a long-grain rice processing equipment capable of reducing the broken rice rate of long-grain rice.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention discloses a long-grain rice processing device, which comprises a water bath and a support seat. A conveying structure is installed at the bottom of the water bath. A material guide cylinder connected to the inner cavity of the water bath is installed at a discharge end on one side of the water bath. A lifting and drying mechanism with one end extending to the bottom of the material guide cylinder is rotatably installed on the material guide cylinder. A mounting seat rotatably connected to the lifting and drying mechanism is sleeved on the lifting and drying mechanism. The discharge end of the lifting and drying mechanism is connected to a shelling mechanism installed on the support seat through the material guide structure.

[0006] As a preferred technical solution of the present invention, the conveying structure includes a conveying shaft with conveying blades installed at the bottom of the water bath, one end of the conveying shaft with conveying blades extends to the discharge end on one side of the water bath, and the other end of the conveying shaft passes through the water bath and is fixed with a driving wheel.

[0007] As a preferred technical solution of the present invention, the lifting and drying mechanism includes a lifting cylinder extending to the bottom of the guide cylinder, a plurality of feeding slots are provided at the bottom of the lifting cylinder, a drying cylinder connected to the lifting cylinder is fixed on the top of the lifting cylinder, a plurality of discharge ports are provided on the outer circumferential surface of the top of the drying cylinder, a driving gear ring coaxial with the drying cylinder is fixed on the outer circumferential surface of the drying cylinder, and spiral lifting blades are fixed on the inner surfaces of the drying cylinder and the lifting cylinder; The material guiding structure is sleeved on the drying drum and is rotatably connected to the drying drum. The mounting seat is sleeved on the bottom of the drying drum and is rotatably connected to the drying drum. The bottom of the drying drum is conical.

[0008] As a preferred technical solution of the present invention, an upper cover is fixed on the top of the drying cylinder, and a drying hot air inlet pipe fixedly connected to the upper cover passes through the upper cover. An air guide pipe coaxial with the drying cylinder and the lifting cylinder is fixed at one end of the drying hot air inlet pipe located inside the upper cover. The air guide pipe extends to the bottom of the lifting cylinder at one end away from the drying hot air inlet pipe. A plurality of air outlet holes are provided on an outer circular surface of the air guide pipe located inside the drying cylinder, obliquely downward along the axis of the air guide pipe.

[0009] As a preferred technical solution of the present invention, the material guiding structure includes a lower hopper connected to the shelling mechanism, and a lower semi-arc seat coaxial with the drying cylinder is fixedly connected to one side of the lower hopper, and an upper semi-arc seat coaxial with the drying cylinder is fixed to the lower semi-arc seat by bolts, and a section of the drying cylinder located inside the lower semi-arc seat and the upper semi-arc seat is provided with a bearing.

[0010] As a preferred technical solution of the present invention, the mounting seat includes a conical sleeve that cooperates with the bottom of the drying cylinder, a plurality of rollers that fit with the bottom of the drying cylinder are rotatably installed in the conical sleeve, and an L-shaped mounting plate is fixed to the outer surface of the conical sleeve.

[0011] As a preferred technical solution of the present invention, the shelling mechanism includes a conical hopper fixedly connected to the support seat, a discharge pipe connected to the inner cavity of the conical hopper is installed at the bottom of the conical hopper, a support plate is fixed to the top of the conical hopper, an outer shell connected to the lower hopper is fixed to the top of the support plate, a conical shelling cone is fixed at the center of the top of the support plate, a friction shelling cavity is formed between the inner surface of the outer shell and the outer surface of the shelling cone, an intermediate driving body coaxial with the inner surface of the outer shell and the shelling cone is rotatably arranged in the friction shelling cavity, and a discharge slot connected to the friction shelling cavity and the conical hopper is provided on the support plate.

[0012] A rotating shaft is installed on the top of the outer shell through a support frame. The rotating shaft passes through the intermediate driving body, shelling cone, support plate, conical hopper and discharge pipe from top to bottom. A transmission wheel 2 is installed at one end of the rotating shaft at the bottom of the discharge pipe. A spiral unloading blade is installed on the outer cylindrical surface of a section of the rotating shaft inside the discharge pipe. The outer cylindrical surface of the rotating shaft is fixedly connected to the intermediate driving body.

[0013] A number of outer shelling parts are fixed to the inner surface of the outer shell by bolts, a number of inner shelling parts are fixed to the outer surface of the shelling cone by bolts, and a number of intermediate shelling parts are installed through the intermediate driving body. The outer shelling parts, inner shelling parts and intermediate shelling parts are all arc-shaped, and the outer shelling parts and inner shelling parts have the same structure. The outer shelling parts include a fixing plate in an arc-shaped shape and fits the inner surface of the outer shell. A number of shelling leather strips are fixed on one side of the fixing plate facing the shelling cone, and the fixing plate is fixedly connected to the outer shell by bolts.

[0014] The intermediate shelling part includes an inner bonding plate and an outer bonding plate which are bonded to the inner and outer surfaces of the intermediate driving body. A connecting block which passes through the intermediate driving body is fixed on the outer arc surface of the inner bonding plate. A connecting groove which passes through the intermediate driving body and cooperates with the connecting block is fixed on the inner arc surface of the outer bonding plate. A fastening screw which is threadedly connected to the connecting block is passed through the outer bonding plate. Two shelling leather strips are fixed on the inner arc surface of the inner bonding plate and the outer arc surface of the outer bonding plate.

[0015] A processing technology for long-grain rice processing equipment comprises the following steps: Step 1: Soaking: Pour an appropriate amount of hot water into a water bath, control the water temperature at 70-75°C, pour the long-grain rice that needs to be hulled into the water bath, maintain the water temperature to ensure the soaking effect of the rice, soak for 1 to 1.5 hours, so that the rice husk is soaked thoroughly and the surface layer of the rice is soaked thoroughly; Step 2: Lifting and drying: The soaked rice is transported to the guide drum through the conveying structure. The lifting and drying mechanism lifts the rice in the guide drum and dries the surface moisture and the shell of the rice after soaking through the drying drum. Step 3: Guide the rice and prepare for shelling: The dried rice is discharged to the guide structure through the discharge end of the lifting drying mechanism, and the guide structure guides the rice into the shelling mechanism to prepare for shelling; Step 4: Hulling: The rice enters the friction hulling chamber of the hulling mechanism and is separated by the intermediate driving body. The hulling is carried out in two chambers. After hulling, the rice and rice husks enter the conical receiving hopper through the feeding slot. Step 5: Screening and drying: The rice husks and rice entering the conical receiving hopper are discharged from the discharge pipe to the subsequent peripheral screening equipment for screening. After screening, the moist long-grain rice is input into the drying equipment for drying. After drying, the hulled long-grain rice is obtained.

[0016] The advantages of the present invention are: 1. The present invention is suitable for a rice hulling production line that requires hulling of long-grain rice by arranging a water bath, a lifting and drying mechanism, and a hulling mechanism. The rice is first soaked and then the husk is dried, so that the rice husk is separated from the inner rice and the surface layer of the inner rice has a certain toughness, making it easier to hull in the subsequent processing process, reducing the broken rice rate of the hulled rice, and ensuring the appearance of the hulled long-grain type.

[0017] 2. The present invention provides a lifting and drying mechanism connected to the water bath. When drying the soaked rice, excess drying hot air can be introduced into the water bath to heat the water bath. This allows the hot air to be reused, thereby ensuring the water temperature in the water bath for soaking the rice. No additional heating equipment is required to continuously heat the soaking water.

[0018] 3. The present invention provides a shelling mechanism that is overall conical and has double friction shelling chambers, which not only improves the shelling efficiency, but also allows the rice to be shelled to be input from the small end and output from the large end. While the friction gap remains unchanged, the friction chamber becomes larger, which can prevent the rice, rice husks, and rice from gathering and squeezing each other in the shelling chamber, thereby improving the integrity of the long-grain rice after shelling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic structural diagram of a long-grain rice processing device of the present invention.

[0020] Figure 2 This is a structural diagram of the present invention from another perspective.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the shelling mechanism of the present invention.

[0023] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0024] Figure 6 It is a structural diagram of the lifting and drying mechanism.

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the lifting and drying mechanism.

[0026] Figure 8 It is a structural diagram of the material guide structure.

[0027] Figure 9 Schematic diagram of the structure of the mounting base.

[0028] Figure 10 It is a structural diagram of the intermediate shelling component.

[0029] Figure 11 It is a schematic diagram of the cross-sectional structure of the intermediate shelling component.

[0030] Figure 12 It is a structural diagram of the outer shelling part.

[0031] Figure 13 It is a structural diagram of the limit slip ring.

[0032] In the accompanying drawings: 1. Water bath; 2. Support base; 3. Conveying structure; 4. Material guide cylinder; 5. Lifting and drying mechanism; 501. Lifting cylinder; 502. Feeding slot; 503. Drying cylinder; 504. Drive gear ring; 505. Spiral lifting blades; 506. Upper cover; 507. Drying hot air inlet pipe; 508. Air guide pipe; 6. Mounting seat; 601. Conical sleeve; 602. Roller; 603. L-shaped mounting plate; 7. Material guide structure; 701. Lower hopper; 702. Lower arc seat; 703. Upper arc seat; 704. Bearing; 8. Shelling mechanism; 801. Conical receiving hopper; 802. Discharging pipe; 803. Support plate; 804. Outer shell; 805. Shelling cone; 806. Intermediate driving body; 807. Discharging notch; 808. Support frame; 809. Rotating shaft; 810, outer shelling part; 8101, fixing plate; 8102, shelling strip 1; 811, inner shelling part; 812, middle shelling piece; 8121, inner plywood; 8122, outer plywood; 8123, connecting block; 8124, connecting groove; 8125, shelling strip 2; 813, limit slip ring; 9. Sealing ring. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not to exact scale, and are only used for the purpose of conveniently and clearly illustrating the embodiments of the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Example 1:

[0037] See also Figures 1-13 Structural schematic diagram, the present invention provides the following technical solutions: Specifically, it refers to a long-grain rice processing equipment, including a water bath 1 and a support base 2. A conveying structure 3 is installed at the bottom of the water bath 1. A material guide cylinder 4 connected to the inner cavity of the water bath 1 is installed at the discharge end of one side of the water bath 1. A lifting and drying mechanism 5 with one end extending to the bottom of the material guide cylinder 4 is rotatably installed on the material guide cylinder 4; an appropriate amount of hot water (the water temperature is controlled at 70-75°C) is injected into the water bath 1, and then long-grain rice that needs to be hulled is poured into the water bath 1. At the same time as the hot water is injected, hot air is input through the lifting and drying mechanism 5 (the hot air is input and the rice husk on the surface of the unhulled long-grain rice lifted by the lifting and drying mechanism 5 is dried). The temperature of the hot air is controlled at about 80°C, and the hot water is continuously heated to maintain the water temperature to ensure the soaking effect of the rice. After soaking for a period of time (because long-grain rice is longer, the contact area with water is larger, and compared with ordinary rice, the rice husk on its surface is easier and can be soaked faster. Therefore, soaking for 1 to 1.5 hours is enough, and the surface layer of the rice can be soaked).

[0038] A processing technology for long-grain rice processing equipment comprises the following steps: Soaking treatment: Pour an appropriate amount of hot water into the water bath 1, control the water temperature at 70-75°C, pour the long-grain rice that needs to be hulled into the water bath 1, maintain the water temperature to ensure the soaking effect of the rice, and soak for 1 to 1.5 hours to ensure that the rice husk is soaked thoroughly and the surface layer of the rice is soaked thoroughly.

[0039] Lifting and drying: The soaked rice is transported to the guide drum 4 by the conveying structure 3. The lifting and drying mechanism 5 lifts the rice in the guide drum 4 and passes through the drying drum 503 to dry the surface moisture of the rice and the shell after soaking. Material guidance and preparation for shelling: The dried rice is discharged to the material guidance structure 7 through the discharge end of the lifting drying mechanism 5. The material guidance structure 7 guides the rice into the shelling mechanism 8 to prepare for shelling; Hulling process: The rice enters the friction hulling chamber of the hulling mechanism 8 and is separated by the intermediate driving body 806. The hulling is carried out in two chambers. After the hulling is completed, the rice and rice husks enter the conical receiving hopper 801 through the discharge slot 807. Screening and drying: The rice husks and rice entering the conical receiving hopper 801 are discharged from the discharge pipe 802 to the subsequent peripheral screening equipment for screening. After screening, the moist long-grain rice is input into the drying equipment for drying. After drying, the hulled long-grain rice is obtained.

[0040] The lifting and drying mechanism 5 includes a lifting cylinder 501 extending to the bottom of the material guide cylinder 4, and a plurality of feeding slots 502 are provided at the bottom of the lifting cylinder 501. A drying cylinder 503 connected to the lifting cylinder 501 is fixed on the top of the lifting cylinder 501, and a plurality of discharge ports are provided on the outer circular surface of the top of the drying cylinder 503. A driving gear ring 504 coaxial with the drying cylinder 503 is fixed on the outer circular surface of the drying cylinder 503. The driving gear ring 504 is connected to the external driving structure to provide power for the rotation of the lifting and drying mechanism 5. Spiral lifting blades 505 are fixed on the inner surfaces of the drying cylinder 503 and the lifting cylinder 501. The spiral lifting blades 505 can lift the soaked rice in the material guide cylinder 4 and discharge it to the material guide structure 7 through the discharge port.

[0041] The top of the drying drum 503 is fixed with an upper cover 506, and a drying hot air input pipe 507 fixedly connected to the upper cover 506 is passed through the upper cover 506. The drying hot air input pipe 507 is connected to the output end of the external hot air input device and is used to input dry hot air into the drying drum 503 to dry the surface moisture of the long-grain rice after soaking and the shell after soaking. The drying hot air input pipe 507 is located at one end inside the upper cover 506. An air guide pipe 508 coaxial with the drying drum 503 and the lifting drum 501 is fixed. The air guide pipe 508 extends to the lifting drum 501 away from one end of the drying hot air input pipe 507. At the bottom of the cylinder 501, the hot air output from the bottom of the air guide pipe 508 heats the water in the material guide cylinder 4 and transfers it to the water bath 1. The hot air introduced also serves as aeration, causing the rice soaked in the water bath 1 to be turned over, which helps to eliminate bubbles on the surface of the rice husk and improve the soaking efficiency of the rice. The air guide pipe 508 is located on a section of the outer circular surface inside the drying cylinder 503 and is provided with a plurality of air outlet holes inclined downward along the axis of the air guide pipe 508. The downward-slanted air outlet holes can control the direction of the hot air flow, so that the hot air can be directed at the rice lifted by the spiral lifting blades 505, thereby accelerating the drying efficiency of the rice surface.

[0042] The lifting and drying mechanism 5 is mounted with a mounting base 6 that is rotatably connected to the lifting and drying mechanism 5. The lifting and drying mechanism 5 is mounted on an external rack or fixed structure via the mounting base 6, providing a mounting base for the lifting and drying mechanism 5. The mounting base 6 includes a conical sleeve 601 that engages with the bottom of the drying drum 503. Several rollers 602 are rotatably mounted within the conical sleeve 601, which engage the bottom of the drying drum 503. An L-shaped mounting plate 603 is fixed to the outer surface of the conical sleeve 601. The conical shape of the conical sleeve 601 not only conforms to the shape of the bottom of the drying drum 503 but also prevents axial transmission of the drying drum 503 during rotation, ensuring stable operation of the drying drum 503 during the drying process.

[0043] The discharge end of the lifting and drying mechanism 5 is connected to a shelling mechanism 8 mounted on the support base 2 through a material guide structure 7. The material guide structure 7 is sleeved on the drying cylinder 503 and is rotatably connected to the drying cylinder 503. The mounting base 6 is sleeved on the bottom of the drying cylinder 503 and is rotatably connected to the drying cylinder 503. The bottom of the drying cylinder 503 is tapered.

[0044] The material guiding structure 7 includes a lower hopper 701 connected to the shelling mechanism 8, and a lower semi-arc seat 702 coaxial with the drying cylinder 503 is fixedly connected to one side of the lower hopper 701, and an upper semi-arc seat 703 coaxial with the drying cylinder 503 is fixed to the lower semi-arc seat 702 by bolts. The drying cylinder 503 is located inside the lower semi-arc seat 702 and the upper semi-arc seat 703, and a section thereof is sleeved with a bearing 704. The inner ring of the bearing 704 is sleeved on the drying cylinder 503 and fixed to the drying cylinder 503. The outer ring of the bearing 704 is installed between the lower semi-arc seat 702 and the upper semi-arc seat 703, and is clamped and fixed by the lower semi-arc seat 702 and the upper semi-arc seat 703, which is equivalent to a bearing seat. The bearing 704 provides support to the drying cylinder 503 from the top to ensure smooth rotation of the drying cylinder 503. In addition, as Figure 1 、 Figure 2 、 Figure 3 As shown, due to the large gap between the bearing seat formed between the lower arc seat 702 and the upper arc seat 703 and the outer wall of the drying cylinder 503, the rice discharged from the discharge port is easy to fall on the bearing 704, affecting the rotation of the bearing 704, and then affecting the smooth rotation of the entire lifting and drying mechanism 5. Therefore, a sealing ring 9 is provided on the drying cylinder 503 to seal the bearing 704 to prevent rice from falling on the bearing 704.

[0045] The conveying structure 3 includes a conveying shaft with conveying blades installed at the bottom of the water bath 1. In order to allow hot air to be input into the water bath 1 through the material guide barrel 4, a number of vents are opened on the conveying blades to allow hot air, i.e., water, to flow smoothly. One end of the conveying shaft with conveying blades extends to the discharge end on one side of the water bath 1, and the other end of the conveying shaft passes through the water bath 1 and is fixed with a driving wheel 1. The input end of the conveying structure 3 is the driving wheel 1, which is driven to rotate slowly by an external power input device, and is used to input the rice soaked in the water bath 1 into the material guide barrel 4.

[0046] Example 2:

[0047] Based on the first specific embodiment, the difference of this embodiment is that: like Figure 1-Figure 5As shown, the shelling mechanism 8 includes a conical receiving hopper 801 fixedly connected to the support base 2, a discharge pipe 802 connected to the inner cavity of the conical receiving hopper 801 is installed at the bottom of the conical receiving hopper 801, a support plate 803 is fixed on the top of the conical receiving hopper 801, an outer shell 804 connected to the lower hopper 701 is fixed on the top of the support plate 803, and the rice dried in the rice husk in the lower hopper 701 in the material guide structure 7 enters the outer shell 804, and a conical shelling cone 805 is fixed at the center of the top of the support plate 803 and enters the grinding mill. In the friction shelling chamber, a friction shelling chamber is formed between the inner surface of the outer shell 804 and the outer surface of the shelling cone 805. An intermediate drive body 806, coaxial with the inner surface of the outer shell 804 and the shelling cone 805, rotates within the friction shelling chamber. Rice entering the friction shelling chamber is separated by the intermediate drive body 806 and frictionally shelled in two chambers. A discharge slot 807 is provided on the support plate 803, connecting the friction shelling chamber and the conical receiving hopper 801. After shelling, the threshed rice and rice husks enter the conical receiving hopper 801 through the discharge slot 807. To improve the rotational stability of the intermediate drive body 806 driven by the rotating shaft 809, a limit slip ring 813 is fixed to the top of the support plate 803, which cooperates with the intermediate drive body 806.

[0048] A rotating shaft 809 is rotatably mounted on the top of the outer shell 804 via a support frame 808. The rotating shaft 809 extends sequentially from top to bottom through the intermediate drive body 806, the shelling cone 805, the support plate 803, the conical receiving hopper 801, and the discharge pipe 802. A second transmission wheel is mounted on one end of the rotating shaft 809 located at the bottom of the discharge pipe 802. The outer circumference of the rotating shaft 809 is fixedly connected to the intermediate drive body 806. The second transmission wheel is in transmission connection with an external drive device, which drives the intermediate drive body 806 to rotate via the rotating shaft 809. A spiral discharge blade is mounted on a section of the outer circumference of the rotating shaft 809 located inside the discharge pipe 802. The rice husks and rice entering the conical receiving hopper 801 are discharged through the discharge pipe 802 into a screening device for screening. After screening, the damp long-grain rice is fed into a drying device for drying, facilitating subsequent processing while preventing the damp rice from becoming moldy or deteriorating. The two friction shelling chambers formed can increase the rice shelling rate.

[0049] like Figure 4 、 Figure 10-13 As shown, a plurality of outer shelling parts 810 are fixed to the inner surface of the outer shelling body 804 by bolts, a plurality of inner shelling parts 811 are fixed to the outer surface of the shelling cone 805 by bolts, and a plurality of intermediate shelling parts 812 are installed through the intermediate driving body 806. The outer shelling parts 810, the inner shelling parts 811 and the intermediate shelling parts 812 are all arc-shaped. The intermediate shelling parts 812 rotate under the drive of the intermediate driving body 806 and cooperate with the outer shelling parts 810 and the inner shelling parts 811 to frictionally shell the rice.

[0050] The outer shelling member 810 and the inner shelling member 811 have the same structure. The outer shelling member 810 includes a fixed plate 8101 in an arc sector shape and in contact with the inner surface of the outer shell 804. A plurality of shelling strips 8102 are fixed to the side of the fixed plate 8101 facing the shelling cone 805. The fixed plate 8101 is fixedly connected to the outer shell 804 by bolts. In order to improve the structural strength of the connection between the inner shelling member 811 and the shelling cone 805, a reinforcing strip penetrated by bolts can be welded on the inner arc surface of the fixed plate 8101 in the inner shelling member 811, and a corresponding reinforcing groove is provided on the shelling cone 805. The bottom of the reinforcing groove is provided with a threaded hole extending into the interior of the shelling cone 805 and cooperating with the bolts. The cooperation between the reinforcing strip and the reinforcing groove not only strengthens the structural strength of the connection but also facilitates installation between the two.

[0051] The intermediate hulling member 812 comprises an inner and outer bonding plate 8121, respectively bonded to the inner and outer surfaces of the intermediate driver 806. A connecting block 8123, which penetrates the intermediate driver 806, is fixed to the outer curved surface of the inner bonding plate 8121. A connecting groove 8124, which penetrates the intermediate driver 806 and engages with the connecting block 8123, is fixed to the inner curved surface of the outer bonding plate 8122. A fastening screw, threadedly connected to the connecting block 8123, is threaded through the outer bonding plate 8122. A second hulling strip 8125 is fixed to the inner and outer curved surfaces of the inner and outer bonding plates 8121 and 8122. Both hulling strips 8102 and 8125 are made of wear-resistant rubber, ensuring they can remove rice husks from the rice surface while minimizing damage to the rice and ensuring a sufficient service life.

[0052] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A long-grain rice processing device, comprising a water bath (1) and a support base (2), wherein a conveying structure (3) is installed at the bottom of the water bath (1), characterized in that: A material guide cylinder (4) communicating with the inner cavity of the water bath (1) is installed at a discharge end on one side of the water bath (1), and a lifting and drying mechanism (5) having one end extending to the inner bottom of the material guide cylinder (4) is rotatably installed on the material guide cylinder (4); The lifting and drying mechanism (5) is sleeved with a mounting seat (6) that is rotatably connected to the lifting and drying mechanism (5); The discharge end of the lifting and drying mechanism (5) is connected to a shelling mechanism (8) installed on the support base (2) through a material guide structure (7).

2. The long-grain rice processing equipment according to claim 1, characterized in that: The conveying structure (3) comprises a conveying shaft with conveying blades installed at the bottom of the water bath (1), one end of the conveying shaft with the conveying blades extends into the discharge end of one side of the water bath (1), and the other end of the conveying shaft passes through the water bath (1) and is fixed with a driving wheel.

3. The long-grain rice processing equipment according to claim 1, characterized in that: The lifting and drying mechanism (5) includes a lifting cylinder (501) extending to the bottom of the guide cylinder (4), a plurality of feeding slots (502) are provided at the bottom of the lifting cylinder (501), a drying cylinder (503) connected to the lifting cylinder (501) is fixed at the top of the lifting cylinder (501), a plurality of discharge ports are provided on the outer circumferential surface of the top of the drying cylinder (503), a driving gear ring (504) coaxial with the drying cylinder (503) is fixedly sleeved on the outer circumferential surface of the drying cylinder (503), and spiral lifting blades (505) are fixed on the inner surfaces of the drying cylinder (503) and the lifting cylinder (501); The material guide structure (7) is sleeved on the drying cylinder (503) and is rotatably connected to the drying cylinder (503). The mounting seat (6) is sleeved on the bottom of the drying cylinder (503) and is rotatably connected to the drying cylinder (503). The bottom of the drying cylinder (503) is conical.

4. The long-grain rice processing equipment according to claim 3, characterized in that: The top of the drying cylinder (503) is fixed with an upper cover (506), and a drying hot air inlet pipe (507) fixedly connected to the upper cover (506) passes through the upper cover (506). An air guide pipe (508) coaxial with the drying cylinder (503) and the lifting cylinder (501) is fixed to one end of the drying hot air inlet pipe (507) located inside the upper cover (506). The end of the air guide pipe (508) away from the drying hot air inlet pipe (507) extends to the bottom of the lifting cylinder (501). A plurality of air outlet holes are provided on a section of the outer circular surface of the air guide pipe (508) located inside the drying cylinder (503) and inclined downward along the axis of the air guide pipe (508).

5. The long-grain rice processing equipment according to claim 3, characterized in that: The material guiding structure (7) comprises a lower hopper (701) connected to the shelling mechanism (8); a lower semi-arc seat (702) coaxial with the drying cylinder (503) is fixedly connected to one side of the lower hopper (701); an upper semi-arc seat (703) coaxial with the drying cylinder (503) is fixed to the lower semi-arc seat (702) by bolts; a section of the drying cylinder (503) located inside the lower semi-arc seat (702) and the upper semi-arc seat (703) is provided with a bearing (704).

6. The long-grain rice processing equipment according to claim 3, characterized in that: The mounting seat (6) comprises a conical sleeve (601) matched with the bottom of the drying cylinder (503), a plurality of rollers (602) fitted with the bottom of the drying cylinder (503) are rotatably mounted in the conical sleeve (601), and an L-shaped mounting plate (603) is fixed to the outer surface of the conical sleeve (601).

7. The long-grain rice processing equipment according to claim 1, characterized in that: The shelling mechanism (8) comprises a conical receiving hopper (801) fixedly connected to the support seat (2); a discharge pipe (802) communicating with the inner cavity of the conical receiving hopper (801) is installed at the bottom of the conical receiving hopper (801); a support plate (803) is fixed at the top of the conical receiving hopper (801); an outer shell (804) communicating with the discharge hopper (701) is fixed at the top of the support plate (803); a conical shelling cone (805) is fixed at the center of the top of the support plate (803); a friction shelling cavity is formed between the inner surface of the outer shell (804) and the outer surface of the shelling cone (805); an intermediate driving body (806) coaxial with the inner surface of the outer shell (804) and the shelling cone (805) is rotatably arranged in the friction shelling cavity; and a discharge slot (807) communicating with the friction shelling cavity and the conical receiving hopper (801) is opened on the support plate (803).

8. The long-grain rice processing equipment according to claim 7, characterized in that: A rotating shaft (809) is rotatably mounted on the top of the outer shell (804) via a support frame (808). The rotating shaft (809) sequentially passes through the intermediate driving body (806), the shelling cone (805), the support plate (803), the conical receiving hopper (801), and the discharge pipe (802) from top to bottom. A transmission wheel 2 is mounted on one end of the rotating shaft (809) located at the bottom of the discharge pipe (802). A spiral discharge blade is mounted on an outer circumferential surface of a section of the rotating shaft (809) located inside the discharge pipe (802). The outer circumferential surface of the rotating shaft (809) is fixedly connected to the intermediate driving body (806).

9. The long-grain rice processing equipment according to claim 8, characterized in that: The outer shelling body (804) has a plurality of outer shelling parts (810) fixed to its inner surface by bolts, the outer shelling cone (805) has a plurality of inner shelling parts (811) fixed to its outer surface by bolts, and the intermediate driving body (806) has a plurality of intermediate shelling parts (812) installed therethrough. The outer shelling parts (810), the inner shelling parts (811), and the intermediate shelling parts (812) are all in the shape of arc sectors. The outer shelling member (810) and the inner shelling member (811) have the same structure. The outer shelling member (810) includes a fixing plate (8101) in an arc sector shape and in contact with the inner surface of the outer shell (804). A plurality of shelling strips (8102) are fixed on one side of the fixing plate (8101) facing the shelling cone (805). The fixing plate (8101) is fixedly connected to the outer shell (804) by bolts. The intermediate shelling member (812) comprises an inner laminating plate (8121) and an outer laminating plate (8122) that are laminated to the inner and outer surfaces of the intermediate driving body (806); a connecting block (8123) that passes through the intermediate driving body (806) is fixed on the outer arc surface of the inner laminating plate (8121); a connecting groove (8124) that passes through the intermediate driving body (806) and cooperates with the connecting block (8123) is fixed on the inner arc surface of the outer laminating plate (8122); and a fastening screw that is threadedly connected to the connecting block (8123) passes through the outer laminating plate (8122); Among them, the inner arc surface of the inner plywood (8121) and the outer arc surface of the outer plywood (8122) are both fixed with two peeling leather strips (8125).

10. The processing technology of the long-grain rice processing equipment according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Soaking: Pour an appropriate amount of hot water into the water bath (1), control the water temperature at 70-75°C, pour the long-grain rice to be hulled into the water bath (1), maintain the water temperature to ensure the soaking effect of the rice, and soak for 1 to 1.5 hours, so that the rice husk is soaked thoroughly and the surface layer of the rice is soaked thoroughly; Step 2: Lifting and drying: The soaked rice is transported to the guide drum (4) through the conveying structure (3); the lifting and drying mechanism (5) lifts the rice in the guide drum (4), and the surface moisture of the rice and the shell after soaking are dried through the drying drum (503); Step 3: guiding the rice and preparing for shelling: the dried rice is discharged to the guiding structure (7) through the discharge end of the lifting drying mechanism (5), and the guiding structure (7) guides the rice into the shelling mechanism (8) to prepare for shelling; Step 4: Hulling: The rice enters the friction hulling chamber of the hulling mechanism (8), is separated by the intermediate driving body (806), and is divided into two chambers for friction hulling. After hulling, the rice and rice husks enter the conical receiving hopper (801) through the discharge slot (807); Step 5, screening and drying: The rice husks and rice entering the conical receiving hopper (801) are discharged from the discharge pipe (802) to a subsequent peripheral screening device for screening. After screening, the wet long-grain rice is input into a drying device for drying. After drying, the hulled long-grain rice is obtained.

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