Rice polishing equipment with dust separation function
The rice polishing device addresses low purity and pollution risks by integrating dust separation and collection systems, enhancing rice quality and safety.
Patent Information
- Application Number
- CN202422162018.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing rice polishing equipment lacks dust screening and collection functions, resulting in low purity of rice, affecting aesthetics, and dust leakage may cause environmental pollution and explosion hazards.
The polished rice and rice bran are separated by air selection, and the dust is separated from the rice particles by using a fan and a filter. The dust in the collection box is treated by spraying dust reduction to prevent dust leakage.
It improves the cleanliness of rice, avoids environmental pollution and explosive hazards, and ensures production safety.
Smart Images
Figure CN223096848U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain processing equipment, in particular to rice polishing equipment with a dust separation function. Background Art
[0002] As people's living standards continue to improve, the demand for refined rice continues to increase, and it has long been a consensus that rice deep processing is developing in a refined direction. Refined rice can not only improve the edible quality of rice, but also improve the commodity value of rice and extend the storage time. The processing technology of refined rice is: brown rice → selection → rice milling → screening → polishing → screening → length selection → rice blending → color selection (select belly white) → color selection (select different color grains) → screening → finished product. Polishing is an important process for refined rice, and rice polishing machines are often used.
[0003] Existing polishing machines usually use friction to grind off the rice bran attached to the surface of rice. During the grinding process, the rice bran will be gradually ground off to form dust. However, the above structure lacks the function of screening and collecting dust, resulting in low purity of the output rice. If the dust leaks into the air, it will not only pollute the surrounding environment, but also in a closed processing environment such as a factory, the excessive dust content is prone to dangerous situations such as explosion. Utility Model Content
[0004] Based on the above description, the utility model provides a rice polishing equipment with dust separation function to solve the shortcomings of the existing rice polishing equipment lacking screening and dust collection functions, resulting in low purity of rice, affecting the appearance, and dust leakage to the outside easily causing pollution and explosion.
[0005] The utility model is realized through the following technical solutions:
[0006] A rice polishing device with a dust separation function comprises a box body, a driving motor is arranged at the center of the top surface of the box body, the output end of the driving motor extends vertically downward to the inside of the box body and is connected to a transmission shaft for transmission, the inner part of the box body is divided into a polishing chamber and a filter chamber, wherein a polishing cylinder is arranged on the outer wall of the transmission shaft and is just located inside the polishing chamber, and the side wall of the polishing cylinder is close to the inner wall of the polishing chamber with a spacing, a filter separation component is also arranged in the filter chamber, through holes are arranged on both sides of the top of the filter separation component, a fan A is arranged inside one of the through holes, and a collecting box is connected to one side of the other through hole; a feed hopper is arranged on one side of the top of the box body, and a discharge pipe is also arranged at the center of the bottom of the box body.
[0007] Further, the inner space of the polishing chamber is in an inverted hopper shape, the polishing cylinder is also conical, and hemispherical grinding balls are provided on both the inner wall of the polishing chamber and the outer wall of the polishing cylinder and are arranged in an offset manner up and down, and the distance between the inner wall of the polishing chamber and the outer wall of the polishing cylinder gradually decreases from top to bottom.
[0008] Further, the filtering chamber is cylindrical, two through holes horizontally penetrate the entire box body and form an air duct at the top of the filtering chamber, and the air duct is exactly perpendicular to the transmission shaft.
[0009] Further, the filtering and separating assembly includes a mounting seat arranged at the center of the filtering chamber, a filter screen is provided at the center of the top surface of the mounting seat, a fan B is provided below the filter screen, and the fan B is arranged to blow air upward.
[0010] Further, a gap is left between the mounting seat and the inner wall of the filtering chamber, and a plurality of connecting rods are arranged around the outer side wall of the mounting seat, and the other ends of the plurality of connecting rods are respectively fixedly connected to the inner wall of the filtering chamber. At least one of the connecting rods is hollow, and the wire of the fan B extends to the outside of the box body through the connecting rod and is externally connected to a power supply.
[0011] Further, a connecting plate is provided at the center of the bottom of the polishing chamber, a bearing seat is provided on the top surface of the connecting plate, and the bottom end of the transmission shaft is vertically inserted into the center of the bearing seat and is rotatably connected.
[0012] Further, the filter screen is arranged in a conical shape as a whole, and the inclination of the surface of the filter screen approaches a horizontal arrangement, and a vibration motor is further provided at the bottom surface of the filter screen.
[0013] Further, a spray pipe is further provided inside the collection box, a plurality of atomizing nozzles are arranged on the spray pipe, and an exhaust hole is provided at the top of the collection box, and a dustproof net is provided on the exhaust hole.
[0014] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:
[0015] 1. Based on the existing rice polishing equipment, the present application is improved by using the method of air separation to separate the polished rice from the powdery rice bran. In this structure, the fan B at the bottom can blow air through the filter screen after flattening the rice, which can not only reduce the temperature of the rice when it comes out of the machine, prevent it from getting damp due to the large temperature difference from the outside, but also cooperate with the vibration of the filter screen to separate the powdery rice bran from the rice grains, greatly improving the cleanliness of the rice grains. Moreover, these dusts are transported to the inside of the collection box through the air duct on the side wall of the box body, and then the dust is dust-removed by spraying, which can effectively avoid the leakage of dust to the outside, thus effectively avoiding environmental pollution and potential safety hazards of deflagration. Brief Description of the Drawings
[0016] Figure 1 This is a schematic structural diagram of the box body and the collection box in this embodiment;
[0017] Figure 2 This is a schematic internal structure diagram of the box body in this embodiment;
[0018] Figure 3 This is a schematic structural diagram of the filtration and separation component in this embodiment;
[0019] Figure 4 This is a schematic internal structure diagram of the collection box in this embodiment;
[0020] Figure 5 It is Figure 2 an enlarged view of part A in;
[0021] Wherein: 1. Box body; 11. Polishing chamber; 12. Filtration chamber; 13. Connecting plate; 14. Bearing seat; 15. Driving motor; 16. Feed hopper; 17. Discharge pipe; 18. Through hole; 19. Fan A; 2. Transmission shaft; 21. Polishing cylinder; 22. Grinding balls; 3. Filtration and separation component; 31. Mounting seat; 32. Connecting rod; 33. Filter screen; 34. Fan B; 35. Vibration motor; 4. Collection box; 41. Spray pipe. Detailed Description of the Preferred Embodiment
[0022] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application is thorough and comprehensive.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0024] Combined with Figures 1 - 5 as shown, a rice polishing device with a function of separating dust includes:
[0025] A box body 1, which is a metal rectangular box body 1, the inside of which is divided into a polishing chamber 11 and a filtration chamber 12, the two are communicated with each other, and a feed hopper 16 is also provided at the top and a discharge pipe 17 is provided at the bottom;
[0026] The transmission shaft 2 is vertically arranged at the center inside the box body 1, and a driving motor 15 is equipped at the top of the box body 1 to drive it to rotate. A polishing cylinder 21 is provided on the outer side wall, and through the mutual cooperation between the polishing cylinder 21 and the inner wall of the polishing chamber 11, the surface of the rice is ground to achieve a polishing effect;
[0027] The filtering and separating assembly 3 is arranged inside the filtering chamber 12 to screen the polished rice grains and collect the dust adhering to the rice grains, improving the cleanliness of the rice grains;
[0028] The collection box 4 is arranged on one side of the box body 1, mainly used for dust reduction treatment of the collected dust, so as to facilitate subsequent centralized treatment and avoid the adverse effects caused by the dust
[0029] Specifically; in this embodiment, the internal space of the polishing chamber 11 is in an inverted funnel shape, and at the same time, the polishing cylinder 21 is also set to be conical, and the distance between the two gradually decreases from top to bottom, so as to control the conveying speed of the rice grains and ensure that the surface of the rice grains can be sufficiently ground;
[0030] To further improve the grinding effect, hemispherical grinding balls 22 can also be provided on both the inner wall of the polishing chamber 11 and the outer wall of the polishing cylinder 21, and the grinding balls 22 on both surfaces should be arranged in a vertically staggered manner. The rice grains will be repeatedly ground through the cooperation of the two, greatly improving the polishing effect.
[0031] Moreover, at the circular opening at the bottom of the polishing chamber 11, a connecting plate 13 should be provided. The four sides of the connecting plate 13 extend outward and are fixedly connected to the inner wall of the polishing chamber 11, and a bearing seat 14 is provided at the center of the top surface of the connecting plate 13. The bottom end of the transmission shaft 2 is vertically inserted into the center of the bearing seat 14 to be movably assembled with the bearing seat 14, so as to form a bottom support for it by using the connecting plate 13 and make the operation of the polishing cylinder 21 more stable.
[0032] The filtering and separating assembly 3 includes a mounting seat 31 arranged inside the filtering chamber 12. There is a gap between the mounting seat 31 and the inside of the filtering chamber 12. Six connecting rods 32 are arranged around the side wall of the mounting seat 31, and the six connecting rods 32 are respectively fixedly connected to the inside of the filtering chamber 12. In addition, a filter screen 33 is provided on the top surface of the mounting seat 31, and the filter screen 33 is concentrically arranged with the stirring shaft up and down.
[0033] In the above structure, when the polished rice is discharged from the polishing chamber 11, it will fall vertically downward and directly land exactly at the center of the filter screen 33. During the falling process, the air resistance acting on the rice grains and the dust adhering to the surface of the rice grains is different, so separation will naturally occur, that is, the dust floats above the filter screen 33, while the rice grains directly fall on the surface of the filter screen 33. In order to effectively collect these suspended dusts, through holes 18 should be respectively provided on both sides of the top of the polishing chamber 11, penetrating through the side of the box body 1. A fan A19 is arranged on one of the through holes 18, and the other through hole 18 is communicated with the collection box 4, or a fan A19 is set at the position where the channel is communicated with the collection box 4, so as to form a horizontal air duct inside it. At the same time, in order to prevent external dust from entering the interior of the box body 1, a dust-proof cover should be provided at the channel port on the outer-facing side.
[0034] Although some dust can be separated from the surface of the rice grains, there are still some dusts that remain adhered to the surface of the rice grains. In order to effectively remove them and also considering the transportation and collection of the rice grains, the filter screen 33 should be set as a conical structure. At the same time, a circular plate is provided at the topmost part, and a vibration motor 35 is provided on the bottom surface of the circular plate. The vibration motor 35 can use vibration to break the rice grains from bouncing repeatedly on the filter screen 33, so as to make the dust adhered to the surface of the rice grains rise again. At the same time, the rice grains can also move towards the four sides through the inclined side wall of the filter screen 33.
[0035] In order to slow down the moving speed of the rice grains on the filter screen 33, that is, to ensure the removal effect of the dust on the surface of the rice grains, the inclination angle of the surface of the filter screen 33 should be arranged to be close to the horizontal state.
[0036] During the actual use process, although the dust will be raised when the rice grains bounce, the raising distance is relatively low. At the same time, in order to further improve the separation effect of the rice grains and the dust, a fan B34 can also be embedded on the top surface of the mounting seat 31, that is, using the fan B34 to blow air upward, so that the air can pass through the filter screen 33 to blow the dust upward, and cooperate with the air duct to discharge it into the interior of the collection box 4.
[0037] At the same time, one of the connecting rods 32 on the side wall of the mounting seat 31 should be set to be hollow, and the power lines of the vibration motor 35 and the fan B34 extend to the outside through the connecting rod 32 and are powered by an external power supply.
[0038] A spray pipe 41 is arranged inside the collection box 4, and a number of atomizing nozzles are arranged on the spray pipe 41. The dust in the air is captured by atomized water vapor to quickly reduce the dust, so as to filter out the impurities in the air. The staff regularly clean the impurities, and the air after filtration can be discharged through the exhaust holes provided at its top. A dust-proof net is also provided on the exhaust holes to prevent external dust from entering the interior of the box body 1.
[0039] The bottom of the filtering chamber 12 is arranged in an arc structure, so that the rice grains after filtering and screening will automatically gather at the center of the bottom. The discharge pipe 17 is just located at the center of the bottom surface of the box body 1, and its top end is communicated with the filtering chamber 12, so as to discharge these rice grains for packaging and bagging.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims
1. A rice polishing device with a function of separating dust, characterized in that It includes a box body (1). At the center of the top surface of the box body (1), a driving motor (15) is provided. The output end of the driving motor (15) extends vertically downward into the box body (1) and is drivingly connected to a transmission shaft (2). The interior of the box body (1) is divided into a polishing chamber (11) and a filtering chamber (12). Wherein, a polishing cylinder (21) is provided on the outer side wall of the transmission shaft (2) and is exactly located inside the polishing chamber (11). And there is a spacing between the side wall of the polishing cylinder (21) and the inner wall of the polishing chamber (11). A filtering and separating component (3) is further provided in the filtering chamber (12). Through holes (18) are provided on both sides of the top of the filtering and separating component (3). A fan A (19) is provided inside one of the through holes (18). And a collecting box (4) is communicated with one side of the other through hole (18). A feeding hopper (16) is provided on one side of the top of the box body (1). And a discharge pipe (17) is further provided at the center of the bottom of the box body (1).
2. The rice polishing device with a dust separation function according to claim 1, characterized in that, The internal space of the polishing chamber (11) is in an inverted hopper shape. The polishing cylinder (21) is also arranged in a conical shape. And hemispherical grinding balls (22) are provided on both the inner wall of the polishing chamber (11) and the outer wall of the polishing cylinder (21) and are arranged vertically offset. And the spacing between the inner wall of the polishing chamber (11) and the outer wall of the polishing cylinder (21) gradually becomes smaller from top to bottom.
3. A rice polishing device with a function of separating dust according to claim 1, characterized in that, The filtering chamber (12) is arranged in a cylindrical shape. The two through holes (18) horizontally penetrate through the entire box body (1) and form an air duct at the top of the filtering chamber (12). And the air duct is exactly arranged perpendicular to the transmission shaft (2).
4. A rice polishing device with a function of separating dust according to claim 3, characterized in that, The filtering and separating component (3) includes a mounting seat (31) provided at the center of the filtering chamber (12). At the center of the top surface of the mounting seat (31), a filter screen (33) is provided. Below the filter screen (33), a fan B (34) is provided. The fan B (34) is arranged to blow air upward.
5. A rice polishing device with a function of separating dust according to claim 4, characterized in that, There is a gap between the mounting seat (31) and the inner wall of the filtering chamber (12). And a plurality of connecting rods (32) are arranged in a ring shape on the outer side wall of the mounting seat (31). The other ends of the plurality of connecting rods (32) are respectively fixedly connected to the inner wall of the filtering chamber (12). At least one of the connecting rods (32) is hollow inside. The wire of the fan B (34) extends to the outside of the box body (1) through the connecting rod (32) and is externally connected to a power supply.
6. A rice polishing device with a function of separating dust according to claim 1, characterized in that, A connecting plate (13) is provided at the center of the bottom of the polishing chamber (11). A bearing seat (14) is provided on the top surface of the connecting plate (13). The bottom end of the transmission shaft (2) is vertically inserted into the center of the bearing seat (14) and is rotationally connected.
7. A rice polishing device with a function of separating dust according to claim 5, characterized in that, The filter screen (33) is arranged in an overall conical shape. And the inclination of the surface of the filter screen (33) approaches a horizontal arrangement. A vibration motor (35) is further provided at the bottom surface of the filter screen (33).
8. A rice polishing device with a function of separating dust according to claim 1, characterized in that A spray pipe (41) is further provided inside the collecting box (4). A plurality of atomizing nozzles are arranged on the spray pipe (41). And an exhaust hole is provided at the top of the collecting box (4). A dust-proof net is provided on the exhaust hole.