Rice production with husked rice separating device

Abstract

The utility model discloses a rice production with brown rice separation device, including separation bin and discharge box. Advantageous effect: the utility model has adopted the separation sieve plate of liftable, when carrying out brown rice separation to rice, can put rice raw materials into the bin, after rice accumulation certain height, butterfly valve opens simultaneously, and rice enters into the separation frame, and the separation frame shakes left and right by the telescopic pull of air cylinder, drives separation sieve plate to shake left and right, carries out brown rice separation to rice, and the impurity after separation stays in the top surface of separation sieve plate, and rice passes through separation sieve plate and enters the discharge box in, and along the discharge port and is discharged, when needing to clean the impurity, the staff can start the electric cylinder extension, and the electric cylinder pushes the separation sieve plate and moves up the top surface edge and the separation frame top surface flush, and the top surface of separation sieve plate is in the shape of a person's name, and the impurity falls out of the separation frame to both sides, and along the bevel and is discharged, and the automatic impurity cleaning is completed, and the trouble of manual cleaning is saved, and the convenience and work efficiency of use are improved.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, specifically to a rice-brown separation device for rice production. Background Technology

[0002] The rice processing flow mainly consists of four major processes: cleaning, hulling and hulling separation, milling, and finished product finishing. Incorporating hulling separation equipment into the milling process can greatly improve the whole rice yield and increase the economic benefits of processing.

[0003] A search revealed application CN202320954249.0, entitled "A Rice Production Paddy Separation Device." This application proposes a method for separating a paddy mixture using a feeding device. The feeding device transfers the paddy mixture to the separation device for separation. The mixture is then introduced into an internal screen for screening. During this process, the contact point between the released paddy mixture and the screen remains constant, with the mixture gradually extending outwards. During continuous release, the amount of paddy mixture at the contact point is significantly greater than in other areas of the screen. This results in insufficient utilization of other areas of the screen during separation, leading to excessive accumulation of paddy mixture at the contact point. The problem affecting the screening and separation of the paddy mixture is addressed by using an electric telescopic rod that, when energized, drives a movable block to reciprocate horizontally. This movable block moves a guide pipe, dispersing the paddy mixture onto the screening mechanism. This changes the contact position between the released paddy mixture and the screening mechanism, preventing accumulation in one spot and utilizing other areas of the screening mechanism. This evenly distributes the paddy mixture, improving the screening and separation effect. However, during screening, impurities tend to accumulate on the top surface of the screening mechanism, requiring manual cleaning, which is inconvenient. Furthermore, the reciprocating guide pipe hinders continuous feeding and is difficult to integrate with existing grain lifting equipment, impacting usability. The structure is also relatively complex and requires further improvement.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a rice-brown separation device for rice production, which has the advantage of being easy to use, thereby solving the problems in the background art mentioned above.

[0006] To achieve the aforementioned advantages of ease of use, the specific technical solution adopted by this utility model is as follows: A rice-brown rice separation device includes a separation chamber and a discharge box. The top surface of the discharge box has an slanted opening, and the outer wall of the slanted opening is fixedly connected to the separation chamber via a support rod. A separation frame is arranged inside the separation chamber, and a separation sieve plate is inserted inside the separation frame. The top surface of the separation sieve plate has a herringbone structure. A cylinder is fixedly installed at one end of the separation chamber, and the other end of the piston rod of the cylinder is fixedly connected to one end of the separation frame. A first guide rod is fixedly connected to the other end of the separation frame. The first guide rod passes through the surface of the other end of the separation chamber and is slidably connected to the separation chamber. An electric cylinder is fixedly installed on the bottom surface of the discharge box. End blocks are fixedly connected to the bottom surface of the separation sieve plate, and connecting rods are fixedly connected between the end blocks. The connecting rod passes through the other end of the electric cylinder moving rod and is slidably connected to the other end of the electric cylinder moving rod.

[0007] Furthermore, a material hopper is arranged above the separation chamber, and a feeding pipe is connected through the bottom surface of the material hopper. The feeding pipe passes through the separation chamber and extends to the top opening of the separation frame. Multiple sets of feeding pipes are densely distributed at equal intervals, and electric butterfly valves are installed on the surface of the feeding pipes.

[0008] Furthermore, the top opening of the feeding pipe is provided with a flared opening, and the feeding pipe is fixedly connected to the top surface of the separation chamber.

[0009] Furthermore, a second guide rod is vertically slidably connected to the bottom surface of the discharge box, and the connection method between the second guide rod and the separation screen plate is the same as the connection method between the moving rod of the electric cylinder and the separation screen plate.

[0010] Furthermore, the bottom surface of the discharge box is provided with a discharge port, and the bottom surface of the discharge box is fixedly installed with support legs, and the bottom of the discharge box has a funnel-shaped structure.

[0011] Furthermore, the size of the inclined top opening is smaller than the vertical projection size of the separation sieve plate, and the outer surface of the inclined opening is polished.

[0012] Furthermore, the support rods are arranged in multiple sets.

[0013] Furthermore, the surface of the separating sieve plate is densely and uniformly perforated, and the top surface of the separating sieve plate is polished.

[0014] Compared with the prior art, this utility model provides a rice-brown separation device for rice production, which has the following beneficial effects: (1) This utility model adopts a liftable separating screen plate. When separating rice from gluten, the rice raw material can be put into the hopper. After the rice accumulates to a certain height, the butterfly valve opens at the same time, and the rice enters the separating frame. The cylinder extends and retracts to pull the separating frame to sway left and right, which drives the separating screen plate to sway left and right, and separates the rice from gluten. The separated impurities stay on the top surface of the separating screen plate, and the rice passes through the separating screen plate into the discharge box and is discharged along the discharge port. When it is necessary to clean the impurities, the operator can start the electric cylinder to extend. The electric cylinder pushes the top edge of the separating screen plate to move up and be flush with the top surface of the separating frame. The top surface of the separating screen plate has a herringbone structure. The impurities roll off the separating frame to both sides and are discharged along the inclined port, completing the automatic impurity cleaning, saving the trouble of manual cleaning, and improving the convenience of use and work efficiency.

[0015] (2) This utility model adopts feeding pipes. There are multiple sets of feeding pipes with equal spacing. When rice raw materials are fed, the feeding pipes play a role in diverting the flow, which improves the uniformity of rice raw material feeding, avoids the problem of excessive concentration when feeding rice, and improves the separation efficiency. At the same time, the structure is simpler, and the fixed hopper makes it convenient for staff to continuously feed materials, which improves the convenience of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the rice production paddy separator proposed in this utility model; Figure 2 This is a front view of the rice production paddy separator proposed in this utility model; Figure 3 This is a schematic diagram of the external structure of the rice production paddy separator proposed in this utility model; Figure 4 This is an enlarged view of node A of the rice-brown separation device for rice production proposed in this utility model.

[0018] In the picture: 1. Separation chamber; 2. Separation frame; 3. Separation screen plate; 4. Electric cylinder; 5. Material bin; 6. Feeding pipe; 7. Electric butterfly valve; 8. Trumpet mouth; 9. Cylinder; 10. First guide rod; 11. Second guide rod; 12. Support rod; 13. Inclined opening; 14. Discharge port; 15. Discharge box; 16. End block; 17. Connecting rod. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a rice-brown separation device for rice production is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Please refer to them. Figure 1 and Figure 4 According to an embodiment of the present invention, a rice production paddy separator includes a separation chamber 1 and a discharge box 15. The discharge box 15 is welded from stainless steel and has an inclined opening 13 on its top surface. The inclined opening 13 is inclined inward (inclination angle 30°-45°) to facilitate the smooth discharge of impurities under gravity and guide them to a designated position. A support rod 12 is fixedly connected to the outer wall of the inclined opening 13 by welding. The other end of the support rod 12 is fixedly connected to the outer wall of the separation chamber 1 to provide stable support for the separation chamber 1. Separation chamber 1 is also made of stainless steel and contains separation frame 2. Separation frame 2 has a rectangular frame structure with a beveled top surface (angle 20°-30°) to facilitate impurities rolling off to the edges. Separation screen plate 3 is inserted inside separation frame 2. Separation screen plate 3 is made of high-strength steel plate (thickness 3-5mm) with a precision stamping and polishing surface. The top surface has a herringbone structure, and the inclined surfaces on both sides facilitate impurities rolling off to the side edges, improving impurity cleaning efficiency. A cylinder 9 is bolted to one end of the separation chamber 1. The cylinder 9 is a double-acting cylinder (50-80mm diameter) equipped with a solenoid valve to control its extension and retraction. The other end of the piston rod of the cylinder 9 is fixedly connected to one end of the separation frame 2 via a flange. The other end of the separation frame 2 is welded and fixedly connected to a first guide rod 10. The first guide rod 10 is a chrome-plated round rod (15-20mm in diameter) and there are two sets (symmetrically distributed). At the same time, the first guide rod 10 is also arranged on the outside of the cylinder 9. While guiding the movement of the separation frame 2, it also plays a role in stabilizing and supporting the separation frame 2 to prevent the separation frame 2 from shaking. The first guide rod 10 passes through the surface of the other end of the separation chamber 1 and slides through the separation chamber 1 (with a clearance of 0.1-0.2mm) to ensure that the separation frame 2 moves smoothly.

[0022] An electric cylinder 4 is fixedly installed on the bottom surface of the discharge box 15 by bolts. The electric cylinder 4 is a small servo electric cylinder (thrust force 500-1000N). An end block 16 is welded and fixedly connected to the bottom surface of the separating screen plate 3. The end block 16 is a steel plate, and a connecting rod 17 is welded and fixedly connected between the end blocks 16. The connecting rod 17 is a round steel bar, which passes through the other end of the moving rod of the electric cylinder 4 and is slidably connected to the other end of the moving rod of the electric cylinder 4 (the fit gap between the connecting rod 17 and the moving rod of the electric cylinder is 1-2mm). When the separating frame 2 moves left and right under the drive of the cylinder 9, the separating screen plate 3 moves left and right synchronously with the separating frame 2. At this time, the connecting rod 17 and the moving rod of the electric cylinder 4 slide relative to each other. The connecting rod 17 plays a connecting role, ensuring that the electric cylinder 4 can drive the screen plate to rise and fall normally without affecting the left and right movement of the screen plate. When separating rice from husks, the rice raw material can be put into the hopper 5. After the rice has accumulated to a certain height (judged by the observation window of the hopper 5), the electric butterfly valve 7 is opened at the same time. The rice enters the separation frame 2 through the feeding pipe 6. The cylinder 9 moves back and forth (frequency 30-50 times / minute) to pull the separation frame 2 to shake left and right, which drives the separation screen plate 3 to shake left and right synchronously, thus separating the rice from husks. During the separation process, smaller rice particles pass through the sieve holes of the separation sieve plate 3 and enter the discharge box 15, and are discharged along the discharge port 14; impurities such as rice husks and brown rice remain on the top surface of the separation sieve plate 3 due to their larger particle size or different density. When it is necessary to clean impurities, the operator can activate the extension of the electric cylinder 4. The moving rod of the electric cylinder 4 pushes the connecting rod 17 and the separating screen plate 3 upward until the top edge of the separating screen plate 3 is flush with the top surface of the separating frame 2. Since the top surface of the separating screen plate 3 has a herringbone structure, the impurities roll to both sides under the action of gravity, slide out of the separating frame 2 and are discharged along the inclined opening 13, thus completing the automatic impurity cleaning. This eliminates the trouble of manually stopping the machine for cleaning and improves the convenience of use and work efficiency. Please refer to Figure 2 and Figure 3 Above the separation chamber 1, there is a material hopper 5. The material hopper 5 is a conical stainless steel hopper (capacity 1-3m³). The bottom surface of the material hopper 5 is connected to the feeding pipe 6 through a flange. The feeding pipe 6 is a stainless steel pipe (diameter 50-80mm). The feeding pipe 6 passes through the separation chamber 1 and extends to the top of the separation frame 2 (50-100mm away from the top of the separation frame 2). The feeding pipe 6 is located inside the separation frame 2 to prevent rice from spilling out. The feeding pipes 6 are densely distributed at equal intervals, and electric butterfly valves 7 (DN50-DN80) are installed on the surface of the feeding pipes 6, which can be conveniently controlled by PLC to open and close the feeding pipes 6 synchronously. When rice raw materials are fed, multiple sets of feeding pipes 6 act as diversion pipes, evenly distributing the rice in the hopper 5 to different areas of the separation frame 2. This improves the uniformity of rice raw material feeding and avoids the problem of excessive concentration of rice in a certain part of the separation frame 2. It ensures that every part of the separation screen plate 3 can fully perform its separation function, thus improving separation efficiency. At the same time, this structure is simpler, and the fixed hopper 5 allows workers to continuously feed the rice via conveyor belt or manually, eliminating the need for frequent machine stops for feeding and improving ease of use. Please refer to Figure 1 The top opening of the feeding pipe 6 is provided with a flared opening 8 (flared opening angle 60°-90°), which facilitates the concentrated squeezing of rice raw materials into the feeding pipe 6 under the action of gravity, and avoids the raw materials from accumulating and blocking at the top opening of the feeding pipe 6. In addition, the feeding pipe 6 is fixedly connected to the top surface of the separation chamber 1 by welding, which improves the stability of the installation of the silo 5 and prevents the silo 5 from shifting due to its own weight or vibration. Please refer to Figure 1 and Figure 3 The bottom surface of the discharge box 15 is vertically slidably connected to a second guide rod 11. The second guide rod 11 is a chrome-plated round rod (15-20mm in diameter). The connection method between the second guide rod 11 and the separation screen plate 3 (connected to the screen plate via a connecting rod, with the connecting rod and the guide rod slidingly engaged) is the same as the connection method between the moving rod of the electric cylinder 4 and the separation screen plate 3. The second guide rod 11 provides guidance for the lifting and lowering of the separation screen plate 3, ensuring that the separation screen plate 3 lifts and lowers smoothly in the vertical direction. The relative sliding design between the second guide rod 11 and the separation screen plate 3 does not affect the left and right movement of the separation screen plate 3. Please refer to Figure 1 and Figure 3 The bottom surface of the discharge box 15 is provided with a discharge port 14 (diameter 150-200mm), and the bottom surface of the discharge box 15 is fixed with support legs (height 500-800mm) by bolts. The bottom of the discharge box 15 has a funnel-shaped structure (cone angle 60°-90°). The funnel-shaped structure makes it easy for rice to be collected and discharged into the discharge port 14, which facilitates the rapid discharge of rice and avoids the accumulation of material in the discharge box 15. Please refer to Figure 1 The top opening of the inclined slot 13 is smaller than the vertical projection size of the separation sieve plate 3 (usually the width of the inclined slot 13 is 50-100mm smaller than the width of the separation sieve plate 3), ensuring that all the impurities rolling off the separation sieve plate 3 can fall into the inclined slot 13. The outer surface of the inclined slot 13 is polished (roughness Ra≤1.6μm) to reduce the frictional resistance between the impurities and the inclined slot 13, and facilitate the smooth sliding of the impurities. Please refer to Figure 1 and Figure 3The support rods 12 are arranged in multiple sets (usually 4-6 sets, symmetrically distributed on both sides of the inclined opening 13). The support rods 12 are angle steel or round steel, and are fixedly connected to the inclined opening 13 and the separation chamber 1 by welding, which improves the stability of the installation of the separation chamber 1 and prevents the separation chamber 1 from being displaced due to vibration during operation.

[0023] Please refer to Figure 1 and Figure 4 The surface of the separating sieve plate 3 is densely and evenly covered with sieve holes (the hole diameter is set according to the rice variety, usually 1.5-2.5mm). The sieve holes are distributed in regular hexagons or circles, with an opening rate of 30%-40%, ensuring that the rice can pass through smoothly. In addition, the top surface of the separating sieve plate 3 is polished (roughness Ra≤0.8μm) to reduce the adhesion between impurities and the sieve plate, making it easier for impurities to roll off. Working principle: Before separating the rice and brown rice, the rice raw material is first poured into the hopper 5 by elevator or manually, and the equipment (cylinder 9, electric cylinder 4, electric butterfly valve 7) is checked to see if it is working properly. After the device is started, the PLC controls the electric butterfly valve 7 to open, and the rice in the hopper 5 falls evenly into the separation frame 2 through multiple sets of feeding pipes 6. The diversion effect of the feeding pipes 6 ensures that the rice is evenly distributed on the separation screen plate 3. At the same time, cylinder 9 begins to extend and retract, causing the separating frame 2 and separating screen plate 3 to sway left and right (amplitude 50-100mm). The rice rolls continuously on the screen plate, and the smaller rice particles pass through the screen holes and enter the discharge box 15. After being collected by the funnel-shaped structure at the bottom of the discharge box 15, it is discharged from the discharge port 14 and enters the next processing step. Impurities such as rice husks and brown rice remain on the top surface of the separating sieve plate 3, and gradually accumulate as the separation time increases. When the impurities accumulate to a certain amount (observed through the observation window of separation chamber 1), the PLC controls the electric butterfly valve 7 to close and stop feeding. After all the remaining rice on the separation screen plate 3 passes through the screen holes, the electric cylinder 4 is activated to extend and push the separation screen plate 3 to move up to be flush with the top surface of the separation frame 2. The impurities slide along the herringbone screen plate to both sides and are discharged into the impurity collection container through the inclined port 13. After the impurities are removed, the electric cylinder 4 shortens, causing the separating screen plate 3 to move down and reset. The electric butterfly valve 7 then opens again to continue the separation of rice and chaff. This cycle repeats. This device achieves uniform feeding through multiple sets of feeding pipes, and completes the separation of rice and chaff by combining the left and right shaking of the screen plate. The screen plate is automatically cleaned by using an electric cylinder to drive the screen plate to lift and lower, which improves the separation efficiency and automation level, and is suitable for continuous production in rice processing plants.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rice-brown rice separation device, characterized in that, The assembly includes a separation chamber (1) and a discharge box (15). The top surface of the discharge box (15) is provided with an inclined opening (13), and the outer wall of the inclined opening (13) is fixedly connected to the separation chamber (1) by a support rod (12). A separation frame (2) is arranged inside the separation chamber (1), and a separation screen plate (3) is inserted inside the separation frame (2). The top surface of the separation screen plate (3) has a herringbone structure. A cylinder (9) is fixedly installed at one end of the separation chamber (1), and the other end of the piston rod of the cylinder (9) is fixedly connected to one end of the separation frame (2). The separation frame (2) is fixedly connected to the other end of the separation frame (2), and the first guide rod (10) passes through the other end surface of the separation chamber (1) and is slidably connected to the separation chamber (1). The bottom surface of the discharge box (15) is fixedly installed with an electric cylinder (4). The bottom surface of the separation screen plate (3) is fixedly connected with an end block (16), and a connecting rod (17) is fixedly connected between the end blocks (16). The connecting rod (17) passes through the other end of the moving rod of the electric cylinder (4) and is slidably connected to the other end of the moving rod of the electric cylinder (4).

2. The rice-producing paddy separator according to claim 1, characterized in that, A hopper (5) is arranged above the separation chamber (1), and a feeding pipe (6) is connected through the bottom surface of the hopper (5). The feeding pipe (6) passes through the separation chamber (1) and extends to the top of the separation frame (2). There are multiple sets of feeding pipes (6) distributed at equal intervals, and an electric butterfly valve (7) is installed on the surface of the feeding pipe (6).

3. The rice-producing paddy-brown separation device according to claim 2, characterized in that, The top opening of the feeding pipe (6) is provided with a flared mouth (8), and the feeding pipe (6) is fixedly connected to the top surface of the separation chamber (1).

4. The rice-paste-brown separation device for rice production according to claim 1, characterized in that, The bottom surface of the discharge box (15) is vertically slidably connected to a second guide rod (11), and the connection method between the second guide rod (11) and the separation screen plate (3) is the same as the connection method between the moving rod of the electric cylinder (4) and the separation screen plate (3).

5. The rice-producing paddy separator according to claim 1, characterized in that, The bottom surface of the discharge box (15) is provided with a discharge port (14), and the bottom surface of the discharge box (15) is fixedly installed with support legs, and the bottom of the discharge box (15) is a funnel-shaped structure.

6. The rice-producing paddy separator according to claim 1, characterized in that, The top opening of the oblique opening (13) is smaller than the vertical projection size of the separation sieve plate (3), and the outer surface of the oblique opening (13) is polished.

7. The rice-paste-brown separation device for rice production according to claim 1, characterized in that, The support rod (12) is arranged in multiple sets.

8. The rice-producing paddy separator according to claim 1, characterized in that, The separation sieve plate (3) has dense and uniform sieve holes on its surface, and the top surface of the separation sieve plate (3) is polished.

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