Rice processing technology
Through the secondary air screen device combined with gravity triggering and dynamic air screen, efficient separation of residual rice, fragments and germ is achieved, solving the problem of large area and low efficiency of equipment in traditional rice processing, and improving production efficiency and germ purity.
Patent Information
- Application Number
- CN202510689251.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2025-08-08
AI Technical Summary
In traditional rice processing technology, residual rice and slag are difficult to efficiently separate from the germ, and materials need to be transferred multiple times, resulting in large area of equipment, low production efficiency and high energy consumption.
The secondary air screen device is used, combining gravity triggering and dynamic air screen to separate residual rice, slag and germ through wind and gravity, and automatically separate and collect using the design of the cutting board and the guide plate to reduce the equipment transfer steps.
It improves the purity of the germ, reduces the equipment footprint, saves time and equipment costs, and improves production efficiency.
Smart Images
Figure CN120438271A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of rice processing, in particular to a rice processing technology. Background Art
[0002] Rice processing is a core step in grain deep processing, and its technological level directly affects the nutritional retention rate, broken rice rate, and processing efficiency of the finished rice. Traditional rice processing generally adopts a linear process of cleaning, husking, milling, grading, and polishing. The existing technology separates the germ from the rice by milling, but some rice is broken during the rice milling process. The broken rice residue and debris are easily screened out along with the germ. Therefore, it is necessary to go through multiple stages of screening using various equipment to obtain pure germ. This process requires multiple material transfers, and the required production line equipment takes up a lot of space, wasting time and manpower. Therefore, to address the above problems, this application proposes a rice processing technology. Summary of the Invention
[0003] In view of this, the technical problem to be solved by the present invention is to provide a rice processing technology that uses a secondary air screen to separate the residual rice, debris and germ without transferring the residual rice and debris to other equipment.
[0004] A rice processing process includes a base, two limit rods slidably connected to the base, the upper ends of the two limit rods are fixedly connected to a collection box, a paddle is rotatably connected in the collection box, a transmission mechanism is connected to the rotating shaft of the paddle, an arc plate is fixedly connected to the front end of the collection box, a plurality of leakage grooves are provided on the arc plate, a baffle is fixedly connected to the rear end of the collection box, the two limit rods are both sleeved with springs, the springs are located between the collection box and the base, the lower ends of the two limit rods are provided with baffles, the upper end of the base is fixedly connected to an inclined plate, the upper end of the inclined plate is fixedly connected to a material guide plate, the material guide plate is fixedly connected to a fixing frame, the fixing frame is provided with a material leakage port, the fixing frame is fixedly connected to a first air duct, the upper end of the base is fixedly connected to a material gathering frame, and the end of the material gathering frame is fixedly connected to a second air duct.
[0005] A filter is fixedly connected in the second air duct.
[0006] A plurality of partitions are fixedly connected to the inner wall of the material guide plate.
[0007] Baffles are provided on both the left and right sides of the inclined plate, and the baffles have an arc that matches the arc plate.
[0008] A brush is installed on the end of the paddle.
[0009] A plurality of triangular blocks are fixedly connected to the inner wall of the arc plate.
[0010] A gear is fixedly connected to the rotating shaft of the dial plate, and a rack is fixedly connected to the upper end of the base, and the gear and the rack are meshed for transmission.
[0011] There are two discharge doors installed on the side wall of the collection box.
[0012] The height of the baffle is higher than the arc plate.
[0013] A process for processing rice using a processing device, the process comprising the following steps:
[0014] Step 1: Allow the milled rice to fall freely on a fixed rack so that the rice can leak out through the leakage hole on the fixed rack;
[0015] Step 2: Using the first fan to sieve the rice, the whole rice, the residual rice, the germ and the residue are sieved;
[0016] Step 3: Collect and process the germs through a collection box;
[0017] Step 4: Use the second fan to perform secondary air screening on the remaining rice and residue, so that the remaining rice and residue are separated and stored;
[0018] Step 5: Use the gravity of the collection box to control the paddle to separate and collect the remaining rice and germ. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0020] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of a rice processing device;
[0021] Figure 3 Schematic diagram of the structure of the collection box;
[0022] Figure 4 Schematic diagram of the structure of the drain tank;
[0023] Figure 5 Schematic diagram of the structure of the dial plate;
[0024] Figure 6 Schematic diagram of the structure of the partition;
[0025] Figure 7 It is a structural diagram of the aggregate frame;
[0026] Figure 8 Schematic diagram of the rack structure. DETAILED DESCRIPTION
[0027] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.
[0028] A rice processing device includes a base 201, two limiting rods 204 are slidably connected to the base 201, the upper ends of the two limiting rods 204 are fixedly connected to a collection box 101, a dial plate 106 is rotatably connected in the collection box 101, a transmission mechanism is connected to the rotating shaft of the dial plate 106, an arc plate 102 is fixedly connected to the front end of the collection box 101, a plurality of leakage grooves 104 are opened on the arc plate 102, a baffle 103 is fixedly connected to the rear end of the collection box 101, and springs 205 are sleeved on the two limiting rods 204. 205 is located between the collecting box 101 and the base 201, and the lower ends of the two limit rods 204 are both provided with baffles. The upper end of the base 201 is fixedly connected to the inclined plate 401, and the upper end of the inclined plate 401 is fixedly connected to the material guide plate 501, and the material guide plate 501 is fixedly connected to the fixing frame 301, and the fixing frame 301 is provided with a leakage port 302, and the fixing frame 301 is fixedly connected to the first air duct 303, and the upper end of the base 201 is fixedly connected to the material gathering frame 402, and the end of the material gathering frame 402 is fixedly connected to the second air duct 404.
[0029] See Figure 5-8 ,
[0030] When using the processing device, the staff first allows the milled rice to fall freely on the fixed frame 301, so that the rice can leak out through the leakage port 302 on the fixed frame 301. At the same time, a first fan is installed at the first air duct 303, and the air discharged from the exhaust pipe of the first fan is discharged through the first air duct 303, so that the falling rice can be screened by wind. Since the germ of the milled rice is completely detached, and part of the rice will be broken into debris during the milling process, the weight of the debris is very large. The weight of the remaining rice is generally less than that of the whole rice. During the wind screening process, the whole rice will fall directly through the leakage port 302 due to its own weight, while the relatively lighter germ and debris will fall directly into the collection box 101 under the action of the wind. In this process, the weight of the remaining rice that falls into the debris is lower than the weight of the whole rice and higher than the weight of the debris and germ. Then, the remaining rice can automatically slide through the inclined surface of the inclined plate 401 into the material collection frame 402 under the action of the wind screen, thereby realizing the screening of whole rice, remaining rice, germ and debris.
[0031] When the germ and the debris mix and fall onto the arc plate 102, the germ and the debris can automatically slide down along the arc surface of the arc plate 102. Since the arc plate 102 is provided with multiple leakage grooves 104, the smaller debris can fall onto the inclined plate 401 through the multiple leakage grooves 104, and finally enter the gathering frame 402 through the inclined plate 401 and gather together with the remaining rice, thereby achieving the separation effect of the germ and the debris. Through the above operation, a purer germ can be separated, and the overall quality of the germ can be improved.
[0032] As the germs in the collection box 101 gradually accumulate, the overall weight of the collection box 101 increases, and the collection box 101 itself moves downward under the action of gravity. At the same time, the two limit rods 204 slide downward on the base 201, and the two springs 205 are compressed by the force.
[0033] After the collection box 101 moves downward, the dial plate 106 automatically rotates downward to a vertical state under the action of the transmission mechanism, and then the germs in the collection box 101 can be dialed toward the baffle 103, thereby realizing the function of centralized isolation of the germs. Under the action of the dial plate 106, the germs can be isolated and processed centrally, providing space for subsequent other materials.
[0034] As the collecting box 101 descends, the shift plate 106 rotates to isolate the germs in a centralized manner. At the same time, the lower end of the collecting box 101 fits against the upper part of the gathering frame 402, and a sealed space is formed between the bottom of the collecting box 101 and the gathering frame 402. At this time, a second fan is installed on the second air duct 404, and the exhaust duct of the second fan is used to make the second air duct 404 blow air, thereby blowing out the residual rice and debris accumulated in the gathering frame 402. The residual rice and debris move in the opposite direction under the action of the wind, move upward along the inclined plate 401, and then continue to be discharged upward through the guide plate 501.
[0035] Since the guide plate 501 is arc-shaped and its upper end points to the top of the collection box 101, when the leftover rice and debris move along the arc surface of the guide plate 501, the guide plate 501 guides the leftover rice and debris, and can fly into the collection box 101 along the guide plate 501. The leftover rice and debris fall into the arc plate 102 and roll downward along the arc surface of the arc plate 102. In this process, the debris can be discharged into the material collection frame 402 through multiple leakage grooves 104, while the leftover rice is collected in the collection box 101. The leftover rice and germ are collected separately by the isolation effect of the paddle plate 106, which is convenient for subsequent removal and transportation.
[0036] The arc-shaped design of the guide plate 501 combined with the reverse airflow of the second air duct 404 forms a U-shaped sorting channel. The efficiency of separating the residual rice from the debris is improved under the action of centrifugal force. Traditional equipment requires three material transfers. This device compresses the sorting space and reduces the floor space through the vertical nesting design of the gathering frame 402 and the collection box 101. The gravity self-resetting mechanism of the dial plate 106 and the arc-shaped guide of the guide plate 501 realize the parallel processing of germ collection and separation of residual rice and debris, thereby improving continuous production capacity.
[0037] The above-mentioned mechanism can utilize the exhaust air from the second air duct 404 to generate a secondary air screen to separate the residual rice from the debris. Compared with conventional screening equipment, there is no need to transfer the residual rice and the debris to other equipment for further screening, thereby reducing the occupied space of the production line and saving time and equipment costs. The device solves the pain points of low germ purity, large equipment footprint and high energy consumption in traditional rice processing through the triple innovation of gravity triggering, dynamic air screening and intelligent linkage.
[0038] A filter 405 is fixedly connected to the second air duct 404 .
[0039] See Figure 6 ,
[0040] The filter 405 serves to intercept the debris, preventing the debris and residual rice from being discharged into the second fan through the second air duct 404, ensuring that the debris and residual rice can be blown out when secondary air screening is required; the air inlet of the second air duct 404 adopts a tapered structure, which increases the air flow speed in front of the filter, enhances the inertial separation effect on the debris, and reduces the risk of filter clogging.
[0041] A plurality of partitions 502 are fixedly connected to the inner wall of the guide plate 501 .
[0042] See Figure 6 ,
[0043] The multiple partitions 502 serve to guide the remaining rice and debris, preventing them from being scattered around by the wind. Instead, they can continue to move along the direction of the guide plate 501 under the action of centrifugation, ensuring that the remaining rice and debris can fall into the collection box 101.
[0044] Baffles 403 are provided on both the left and right sides of the inclined plate 401 , and the baffles 403 have an arc that matches the arc plate 102 .
[0045] See Figure 6 ,
[0046] When the collecting box 101 descends, the bottom of the collecting box 101 fits against the upper end of the gathering frame 402, and at the same time, the arc plate 102 fits against the curvature of the baffle 403, thereby further improving the sealing performance and forming a complete wind direction channel, ensuring that the leftover rice and debris can move along the wind direction channel when affected by wind, ensuring that the leftover rice and debris can accurately fall into the collecting box 101.
[0047] A brush 107 is installed at the end of the paddle 106 .
[0048] See Figure 5 ,
[0049] When the collection box 101 descends through the transmission mechanism, causing the paddle 106 to rotate synchronously, the brush 107 at the end of the paddle 106 moves with the paddle 106. At the same time, the brush 107 can contact the inner wall of the arc plate 102. The gaps between the brushes 107 correspond to the gaps between the multiple leakage grooves 104, which plays a role in clearing the multiple leakage grooves 104 on the arc plate 102, preventing part of the germ from being stuck in the middle of the multiple leakage grooves 104, affecting the subsequent discharge of debris.
[0050] A silicone sealing strip is embedded in the contact area between the arc plate 102 and the baffle 403 to ensure that the sealing performance is maintained after long-term use.
[0051] A plurality of triangular blocks 105 are fixedly connected to the inner wall of the arc plate 102 .
[0052] See Figure 5 ,
[0053] When the germ rolls down along the inner wall of the arc plate 102, the mixture of germ and debris can continuously collide with the multiple triangular blocks 105, thereby promoting the separation of the germ and debris, slowing down the speed of the germ and debris mixture moving downward, and promoting the discharge of the debris through the multiple troughs 104, thereby improving the efficiency of screening out the debris. At the same time, the collisions generated are conducive to the fine separation of rice adhered to the germ and the discharge along with the debris, further improving the purity of the germ.
[0054] Similarly, when the leftover rice and debris pass through the arc plate 102, the leftover rice and debris can continuously collide with the multiple triangular blocks 105, promoting the separation of the leftover rice and debris, slowing down the speed at which the mixture of leftover rice and debris moves downward, and improving the efficiency of screening out the debris.
[0055] The triangular block 105 has an equilateral triangular cross-section, and its sharp corners produce multi-point asymmetric collisions on the mixture of germ and debris, significantly increasing the probability of separation of the debris and the germ. During the collision, the debris is subjected to a greater impact acceleration due to its light weight, resulting in the destruction of its adhesion to the germ.
[0056] The triangular blocks 105 are arranged in a sinusoidal array to form a gradual collision gradient. This design allows the slag to stay on the arc plate 102 longer than a straight plate structure.
[0057] A gear 203 is fixedly connected to the rotating shaft of the dial plate 106 , and a rack 202 is fixedly connected to the upper end of the base 201 , and the gear 203 and the rack 202 are meshed for transmission.
[0058] See Figure 1-4 ,
[0059] When the rice germ is collected in the collecting box 101 and moves downward due to gravity, the paddle plate 106 on the collecting box 101 drives the gear 203 to move downward, and the gear 203 is meshed with the rack 202 for transmission, and then the gear 203 can drive the paddle plate 106 to rotate, realizing the slow rotation of the paddle plate 106. When the paddle plate 106 begins to make initial contact with the inner wall of the arc plate 102, the discharge of rice and germ is stopped. At this time, the collecting box 101 has been fitted with the gathering frame 402, the gear 203 is disengaged from the rack 202, and the gear 203 is not restricted by the rack 202. The paddle plate 106 can rotate freely, and the second fan blows out the remaining rice and debris. The remaining rice and debris gradually accumulate between the paddle plate 106 and the arc plate 102. Under the action of the gradually increasing gravity, the paddle plate 106 is pushed to rotate to a vertical state. Since the gear 203 is disengaged from the rack 202 at this time, the paddle plate 106 is not restricted by the rack 202 and can rotate freely.
[0060] The cooperation between the gear 203 and the rack 202 can realize automatic control of the paddle 106 without a driving source, realize automatic separation and collection of the germ and the residual rice, and achieve the purpose of saving energy.
[0061] Two discharge doors are installed on the side wall of the collection box 101.
[0062] See Figure 1-4 ,
[0063] After the residual rice and germ are collected, the staff opens the two discharge doors and discharges the residual rice and germ in the collection box 101 for collection. During the collection process, the weight of the collection box 101 is reduced and the collection box 101 can automatically rise.
[0064] The baffle 103 is higher than the arc plate 102 .
[0065] See Figure 1 ,
[0066] When the rice is wind-screened, the baffle 103 can block the germ and prevent it from passing over the baffle 103, thereby ensuring that the germ can be collected. The height design of the arc plate 102 can avoid blocking the germ and prevent the germ from being unable to enter the collection box 101.
[0067] A process for processing rice using a processing device, the process comprising the following steps:
[0068] Step 1: allowing the milled rice to fall freely on the fixed rack 301 so that the rice can leak out through the leakage port 302 on the fixed rack 301;
[0069] Step 2: Using the first fan to sieve the rice, the whole rice, the residual rice, the germ and the residue are sieved;
[0070] Step 3: Collecting and processing the germs through the collection box 101;
[0071] Step 4: Use the second fan to perform secondary air screening on the remaining rice and residue, so that the remaining rice and residue are separated and stored;
[0072] Step 5: Using the gravity of the collection box 101 to control the paddle 106 to separate and collect the residual rice and germ.
Claims
1. A rice processing device, characterized in that: The cam is provided with a plurality of guide plates, and a transmission mechanism is connected to the rotation axis of the transmission mechanism. The front end of the collection box is fixedly connected to an arc plate, and a plurality of leakage grooves are provided on the arc plate. The rear end of the collection box is fixedly connected to a baffle. The two limit rods are both provided with springs, and the springs are located between the collection box and the base. The lower ends of the two limit rods are provided with baffles. The upper end of the base is fixedly connected to an inclined plate, and the upper end of the inclined plate is fixedly connected to a material guide plate, and the material guide plate is fixedly connected to a fixed frame, and a material leakage port is provided on the fixed frame. The first air duct is fixedly connected to the fixed frame, and the upper end of the base is fixedly connected to a material gathering frame, and the end of the material gathering frame is fixedly connected to the second air duct.
2. A rice processing device according to claim 1, characterized in that: A filter is fixedly connected in the second air duct.
3. A rice processing device according to claim 2, characterized in that: A plurality of partitions are fixedly connected to the inner wall of the material guide plate.
4. A rice processing device according to claim 3, characterized in that: Baffles are provided on both the left and right sides of the inclined plate, and the baffles have an arc that matches the arc plate.
5. A rice processing device according to claim 4, characterized in that: A brush is installed on the end of the paddle.
6. A rice processing device according to claim 5, characterized in that: A plurality of triangular blocks are fixedly connected to the inner wall of the arc plate.
7. A rice processing device according to claim 6, characterized in that: A gear is fixedly connected to the rotating shaft of the dial plate, and a rack is fixedly connected to the upper end of the base, and the gear and the rack are meshed for transmission.
8. A rice processing device according to claim 1, characterized in that: There are two discharge doors installed on the side wall of the collection box.
9. A rice processing device according to claim 1, characterized in that: The height of the baffle is higher than the arc plate.
10. A process for processing rice using the processing device according to claim 6, characterized in that: The process includes the following steps: Step 1: Allow the milled rice to fall freely on a fixed rack so that the rice can leak out through the leakage hole on the fixed rack; Step 2: Using the first fan to sieve the rice, the whole rice, the residual rice, the germ and the residue are sieved; Step 3: Collect and process the germs through a collection box; Step 4: Use the second fan to perform secondary air screening on the remaining rice and residue, so that the remaining rice and residue are separated and stored; Step 5: Use the gravity of the collection box to control the paddle to separate and collect the remaining rice and germ.