Rice raw material screening equipment

Abstract

The utility model provides rice raw material screening equipment. The rice raw material screening equipment comprises a rack and a screening cylinder rotationally arranged on the rack. Two supporting bases used for bearing the two ends of the screening cylinder are arranged on the rack, and the screening cylinder can be driven to rotate on the two supporting bases. The screening cylinder comprises a cylinder wall composed of a screen and a spiral blade arranged in the screening cylinder and connected to the cylinder wall. The other end of the screening barrel is rotationally connected with a discharging hopper, the discharging hopper is fixedly connected with the corresponding supporting base, the discharging hopper gradually converges downwards in an inclined mode from one end of the screening barrel, and the tail end of the discharging hopper is connected with a discharging pipe. According to the rice raw material screening equipment, the screening barrel is arranged, the spiral blades in the screening barrel can push rice grains, the area of the screen is increased through the barrel wall formed by the screen, the rice grains can make full contact with all parts of the screen to be screened, the influence on the screening effect due to blocking of the screen can be reduced, and the screening efficiency is improved. Therefore, a good screening effect is achieved, and meanwhile the screening efficiency of the rice is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice processing technical field, especially relate to a rice raw material screening equipment. BACKGROUND

[0002] Rice is the product that after rice is cleaned, hulled, milled, finished product arrangement etc. process, in the processing and transportation process of rice, part of rice bran, broken rice, dust and other impurities will be mixed in rice, in order to not affect the edible, improve the quality of rice, need to screen various impurities in rice.

[0003] The existing screening equipment is usually through the screen structure, such as vibrating screen etc., and rice is screened, but the screen area of the existing screening equipment is small, and a single screen needs to screen a large amount of rice, and the dust, rice bran and broken rice and other impurities in rice can easily block the holes on the screen, in the long working process, the screen will be gradually blocked, and then the screening effect of rice is reduced. At the same time, since the screen is blocked, it needs to stop and clean the screen after a period of use, and then the screening efficiency of rice is low. SUMMARY

[0004] Therefore, the utility model aims at providing a rice raw material screening equipment, which has good screening effect and improves the screening efficiency of rice.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A rice raw material screening equipment, including frame, rotatingly arranged screening cylinder on the frame, two support seats for supporting both ends of the screening cylinder are arranged on the frame, and the screening cylinder can be driven to rotate on the two support seats, the screening cylinder includes a cylinder wall composed of a screen, and a spiral blade arranged in the screening cylinder and connected to the cylinder wall, the other end of the screening cylinder is rotatably connected with a discharge hopper, the discharge hopper is fixedly connected with the corresponding support seat, the discharge hopper is gradually convergent downwardly from one end of the screening cylinder, and the discharge pipe is connected to the end of the discharge hopper.

[0007] Further, a gear ring is arranged on the outer periphery of at least one end of the screening cylinder, the gear ring can be supported by the corresponding support seat, a drive motor is arranged on the support seat corresponding to the gear ring, and the drive shaft of the drive motor can engage with the gear ring and drive the gear ring to rotate.

[0008] Further, a partition plate is arranged in the screening cylinder, the partition plate extends along the length direction of the screening cylinder, intersects with the spiral blade, and the partition plate is configured to surround multiple rotation axes of the screening cylinder.

[0009] Further, a rolling brush is arranged between the two support seats, the rolling brush comprises rotating rollers rotatably connected to the two support seats respectively, and brush hairs arranged on the rotating rollers; the brush hairs abut against the outer periphery of the cylinder wall, and the rolling brush can rotate with the screening cylinder when the screening cylinder rotates.

[0010] Further, opposite sides of the discharge pipe are connected with air inlet pipes and air outlet pipes respectively, and a blower is arranged below the rack and connected with the air inlet pipes.

[0011] Further, the outlet of the air inlet pipe is connected to the discharge pipe obliquely upwards from the outside of the discharge pipe, and the inlet of the air outlet pipe extends into the discharge pipe and is obliquely downwards towards the outlet of the air inlet pipe.

[0012] Further, one end of the screening cylinder is rotatably connected with an end plate, the end plate is fixedly connected with the corresponding support seat, and a feeding hopper is arranged on the end plate.

[0013] Further, a magnetic screening device is arranged on the rack, the magnetic screening device comprises a conveying belt, a support frame for supporting the conveying belt, and a magnetic assembly arranged in the conveying belt; the conveying belt and the support frame are arranged on the side close to the feeding hopper; the magnetic assembly is arranged on the side close to the feeding hopper, the magnetic assembly is in a U shape, and the opening direction of the magnetic assembly is towards the side away from the feeding hopper.

[0014] Further, the magnetic assembly is composed of a U-shaped magnet, or the magnetic assembly is composed of a plurality of magnets arranged in a U-shaped structure.

[0015] Further, a discharge hopper is arranged on the rack and located below the screening cylinder; and / or, a material collecting groove is arranged on the support frame and located below the conveying belt.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The rice raw material screening device has the advantages that: the spiral blades in the screening cylinder can push the rice grains, the cylinder wall formed by the screen mesh increases the area of the screen mesh itself, the rice grains can fully contact with each part of the screen mesh and be screened, the influence of the screen mesh blockage on the screening effect is reduced, thereby having a better screening effect, and the increase of the screen mesh area improves the screening efficiency of the rice.

[0018] In addition, the screening cylinder is provided with a gear ring, the gear ring can be driven to rotate by a driving motor, has a good driving effect, and can ensure smooth rotation of the screening cylinder. The screening cylinder is provided with a partition plate, rice in the screening cylinder can be lifted by the partition plate, so that the rice can be fully turned and dispersed, and the screening effect on the rice is improved. Roll brushes are arranged between the two support seats, the bristles on the roll brushes can unblock the holes on the screen, and prevent the screen from being blocked by impurities.

[0019] In addition, opposite sides of the discharge pipe are connected with air inlet pipes and air outlet pipes, respectively, air flow generated by the air blower can be used for winnowing the rice in the discharge pipe to remove light impurities such as rice bran. Through the inclined arrangement of the air inlet pipes and the air outlet pipes, the rice and light materials can be separated by air flow, and the rice is prevented from being blown into the air outlet pipe to cause waste. One end of the screening cylinder is rotatably connected with an end plate, and the end plate is provided with a feeding hopper, so as to facilitate feeding of the rice to be screened into the screening cylinder.

[0020] Furthermore, the rack is provided with a magnetic screening device, which can screen ferromagnetic metal impurities mixed in the rice. The magnetic assembly is composed of a U-shaped magnet or a plurality of magnets arranged to facilitate the production of the magnetic assembly. The rack is provided with a discharge hopper, and the support frame is provided with a material collecting tank to facilitate the collection of impurities screened from the rice. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application and are incorporated herein in their entirety. The embodiments illustrated in the drawings are utilized to explain and describe this application and are not intended to be an undue limitation thereon. In the drawings:

[0022] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a rice raw material screening device according to an embodiment of the present application;

[0023] Figure 2 FIG. 1 is a schematic diagram of the overall structure of a rice raw material screening device according to an embodiment of the present application;

[0024] Figure 3 FIG. 1 is a schematic diagram of the overall structure of a rice raw material screening device according to an embodiment of the present application; Figure 2 FIG. 1 is a schematic diagram of the overall structure of a rice raw material screening device according to an embodiment of the present application;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, rack; 101, support seat; 102, driving motor; 103, rotating roller; 104, bristle; 105, air blower; 106, discharge hopper;

[0027] 2, screening cylinder; 201, cylinder wall; 202, spiral blade; 203, partition plate;

[0028] 3, discharge hopper;

[0029] 4, discharge pipe; 401, air inlet pipe; 402, air outlet pipe;

[0030] 5, gear ring;

[0031] 6, end plate; 601, feeding hopper;

[0032] 7, conveyor belt; 701, conveyor belt body; 702, drive roller; 703, support roller;

[0033] 8, support frame; 801, material collecting groove;

[0034] 9, magnetic assembly. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, specific details are set forth, such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0037] In the description of the utility model, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "outer" appear, it is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second" appear, they are also used for description purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms "mounting", "connection", "connection", "connector" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0039] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0040] The present embodiment relates to a rice raw material screening equipment, and the overall structure is as follows:Figure 1 and Figure 2 As shown in the figure, it comprises a frame 1, and a screening cylinder 2 rotatably arranged on the frame 1.

[0041] The frame 1 is provided with two support seats 101 for supporting both ends of the screening cylinder 2, and the screening cylinder 2 can be driven to rotate on the two support seats 101. The screening cylinder 2 comprises a cylinder wall 201 composed of a screen, and a spiral blade 202 arranged in the screening cylinder 2 and connected to the cylinder wall 201. The other end of the screening cylinder 2 is rotatably connected with a discharge hopper 3, the discharge hopper 3 is fixedly connected with the corresponding support seat 101, the discharge hopper 3 is inclined downward from one end of the screening cylinder 2 and gradually converges, and the end of the discharge hopper 3 is connected with a discharge pipe 4.

[0042] As described above, by arranging the screening cylinder 2, the spiral blade 202 in the screening cylinder 2 can push the rice grains, and the cylinder wall 201 composed of a screen can screen the rice grains. Compared with the prior art, the cylinder wall 201 composed of a screen increases the area of the screen itself, the rice grains can fully contact with each part of the screen and be screened, which can reduce the influence of screen clogging on the screening effect, thereby having a better screening effect, and the increase of the screen area improves the screening efficiency of the rice.

[0043] Based on the above overall introduction, specifically, in order to effectively drive the screening cylinder 2 to rotate, at least one end of the screening cylinder 2 of the embodiment is provided with a gear ring 5, the gear ring 5 can be supported by the corresponding support seat 101, and the support seat 101 corresponding to the gear ring 5 is provided with a driving motor 102, the driving shaft of the driving motor 102 can engage with the gear ring 5 and drive the gear ring 5 to rotate. By arranging the gear ring 5 and the driving motor 102, the driving motor 102 can drive the whole screening cylinder 2 to rotate through the gear ring 5 when working, and the transmission between the driving motor 102 and the gear ring 5 is relatively large, thereby having a better driving effect. In specific implementation, the end of the driving shaft of the driving motor 102 of the embodiment is integrated with a tooth for engaging with the gear ring 5, or a gear wheel separately arranged on the end of the driving shaft can engage with the gear ring 5, which can drive the screening cylinder 2 to rotate.

[0044] In order to further improve the screening effect, the screening cylinder 2 of the embodiment is provided with a partition plate 203, the partition plate 203 extends along the length direction of the screening cylinder 2 and intersects with the spiral blade 202, and the partition plate 203 is configured as multiple around the rotation axis of the screening cylinder 2. Through the arrangement of the partition plate 203, the rice grains in the screening cylinder 2 can be lifted by the partition plate 203 during the rotation of the screening cylinder 2, so that the rice grains can be fully turned over and dispersed, ensuring that each rice grain can contact with the cylinder wall 201 and be screened, thereby further improving the screening effect of the rice.

[0045] The holes on the screen for screening are easily blocked by broken rice, rice bran and other impurities. The screening cylinder 2 still has the problem of reduced screening effect after long-term use. Therefore, the two support seats 101 of the embodiment are provided with a rolling brush, which includes a rotating roller 103 rotatably connected to the two support seats 101 at both ends, and brush hairs 104 provided on the rotating roller 103. The brush hairs 104 abut against the outer periphery of the cylinder wall 201. When the screening cylinder 2 rotates, the screening cylinder 2 can drive the rolling brush to rotate. It can be understood that, through the arrangement of the rolling brush, the brush hairs 104 on the rotating roller 103 can be in contact with the cylinder wall 201 formed by the screen, so that the brush hairs 104 can be inserted into the holes of the screen to remove the impurities blocking the holes, thereby enabling the rolling brush to have the function of unblocking the screen and further preventing the screen from being blocked and causing the screening effect to decrease to a certain extent. It is worth mentioning that the rolling brush of the embodiment is not connected to other driving devices, and the rolling brush only rotates by relying on the rotation of the screening cylinder 2.

[0046] In the embodiment, some light impurities such as dust and rice bran may still remain in the rice grains passing through the screening cylinder 2. In order to further screen the rice and remove the light impurities with relatively light weight, the opposite sides of the discharge pipe 4 are respectively connected with an air inlet pipe 401 and an air outlet pipe 402, and a blower 105 connected with the air inlet pipe 401 is arranged below the rack 1. By arranging the air inlet pipe 401 and the air outlet pipe 402 on the discharge pipe 4, the blower 105 can generate airflow to blow into the discharge pipe 4 through the air inlet pipe 401, so that the airflow can blow the light impurities in the rice grains and carry the light impurities out through the air outlet pipe 402, thereby realizing the effect of airflow separation in the discharge pipe 4 to further screen the rice and improve the screening effect.

[0047] Further, the outlet of the air inlet pipe 401 is connected to the discharge pipe 4 obliquely upward from the outside of the discharge pipe 4, and the inlet of the air outlet pipe 402 extends into the discharge pipe 4 and is obliquely downward toward the outlet of the air inlet pipe 401. By the oblique arrangement of the air inlet pipe 401 and the air outlet pipe 402, the airflow flows obliquely from bottom to top in the discharge pipe 4, so that the airflow can blow up the light materials, which is beneficial to separate the rice grains from the light materials by airflow and further improve the screening effect. At the same time, the oblique arrangement of the air inlet pipe 401 and the air outlet pipe 402 can avoid the rice grains from being blown into the air outlet pipe 402, thereby avoiding the waste of rice.

[0048] In order to facilitate the feeding of the rice to be screened into the screening cylinder 2, one end of the screening cylinder 2 of the embodiment is rotatably connected with an end plate 6, the end plate 6 is fixedly connected with the corresponding support seat 101, and the end plate 6 is provided with a feeding hopper 601. Through the arrangement of the feeding hopper 601, the rice to be screened can be easily fed into the screening cylinder.

[0049] On this basis, as shown in Figure 1 、 Figure 2 and Figure 3 , the rack 1 of the embodiment is also provided with a magnetic screening device, which includes a conveying belt 7, a support frame 8 for supporting the conveying belt 7, and a magnetic assembly 9 arranged in the conveying belt 7. The conveying belt 7 and the support frame 8 are located on the side close to the feeding hopper 601. The magnetic assembly 9 is located on the side close to the feeding hopper 601, the magnetic assembly 9 is in a U shape, and the opening direction of the magnetic assembly 9 is away from the feeding hopper 601. It can be understood that the rice may be mixed with metal impurities such as metal debris and metal parts. When the rice to be screened is conveyed by the conveying belt 7 to the feeding hopper 601, the metal impurities can be attached to the conveying belt 7 due to the attraction of the magnetic assembly 9. At this time, the conveying belt 7 rotates, and the metal impurities move from the upper belt segment of the conveying belt 7 to the lower belt segment of the conveying belt 7. Since the rice grains are not attracted by the magnetic assembly 9, the rice grains are discharged into the feeding hopper 601. With the movement of the metal impurities in the lower belt segment, the metal impurities will eventually be out of the attraction range of the magnetic assembly 9 due to the conveying of the conveying belt 7, and then be separated from the conveying belt 7.

[0050] Therefore, by arranging the magnetic screening device, the ferromagnetic metal impurities in the rice can be screened and separated, thereby further improving the screening effect of the rice. In specific implementation, the conveying belt 7 of the embodiment includes a conveying belt body 701, a driving roller 702, and a plurality of support rollers 703 located between the magnetic assembly 9 and the conveying belt body 701. The conveying belt body 701 is sleeved on the driving roller 702 and the support rollers 703. In order to avoid the influence of the support rollers 703 on the magnetic force of the magnetic assembly 9, each support roller 703 can be made of plastic material.

[0051] Specifically, the magnetic assembly 9 of the embodiment is composed of a U-shaped magnet, or the magnetic assembly 9 is composed of a plurality of magnets arranged in a U-shaped structure to reduce the production cost of the magnetic assembly 9. In specific implementation, the magnet constituting the magnetic assembly 9 of the embodiment can be a neodymium iron boron magnet, a ferrite magnet, etc., which has strong magnetic force and can screen metal impurities.

[0052] Finally, in the embodiment, the rack 1 is provided with a discharge hopper 106 located below the screening cylinder 2 to facilitate the collection of screened broken rice, dust and other impurities. Meanwhile, the support frame 8 of the embodiment can be provided with a collection tank 801 located below the conveying belt 7 to facilitate the collection of screened metal impurities.

[0053] To sum up, the rice raw material screening equipment of the embodiment, by setting the screening cylinder 2, the spiral blade 202 in the screening cylinder 2 can push the rice grains, and the cylinder wall 201 composed of the screen can screen the rice grains, compared with the prior art, the cylinder wall 201 composed of the screen increases the area of the screen itself, the rice grains can fully contact each part of the screen and be screened, and the influence of the screening effect caused by the screen blockage can be reduced, thereby having a better screening effect, and meanwhile, the increase of the screen area improves the screening efficiency of the rice.

[0054] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rice raw material screening device, characterized in that: it comprises a rack (1) and a screening cylinder (2) rotatably arranged on the rack (1); the rack (1) is provided with two support seats (101) for supporting both ends of the screening cylinder (2), and the screening cylinder (2) can be driven to rotate on the two support seats (101); the screening cylinder (2) comprises a cylinder wall (201) composed of a screen mesh and a spiral blade (202) arranged in the screening cylinder (2) and connected to the cylinder wall (201); the other end of the screening cylinder (2) is rotatably connected with a discharge hopper (3), the discharge hopper (3) is fixedly connected with the corresponding support seat (101), the discharge hopper (3) is gradually tapered downward from one end of the screening cylinder (2), and the end of the discharge hopper (3) is connected with a discharge pipe (4); one end of the screening cylinder (2) is rotatably connected with an end plate (6), the end plate (6) is fixedly connected with the corresponding support seat (101), and the end plate (6) is provided with a feeding hopper (601); the rack (1) is provided with a magnetic screening device, the magnetic screening device comprises a conveying belt (7), a support frame (8) for supporting the conveying belt (7), and a magnetic assembly (9) arranged in the conveying belt (7); the conveying belt (7) and the support frame (8) are located on the side close to the feeding hopper (601); the magnetic assembly (9) is located on the side close to the feeding hopper (601), the magnetic assembly (9) is in a U shape, and the opening direction of the magnetic assembly (9) is away from the feeding hopper (601).

2. The rice raw material screening device according to claim 1, characterized in that: at least one end of the screening cylinder (2) is provided with a gear ring (5), the gear ring (5) can be supported by the corresponding support seat (101), and the support seat (101) corresponding to the gear ring (5) is provided with a driving motor (102), the driving shaft of the driving motor (102) can engage with the gear ring (5) and drive the gear ring (5) to rotate.

3. The rice raw material screening device according to claim 1, characterized in that: the screening cylinder (2) is provided with a partition plate (203), the partition plate (203) extends along the length direction of the screening cylinder (2) and intersects with the spiral blade (202), and the partition plate (203) is configured to surround multiple rotation axes of the screening cylinder (2).

4. The rice raw material screening device according to claim 1, characterized in that: a rolling brush is arranged between the two support seats (101), the rolling brush comprises two rotating rollers (103) rotatably connected with the two support seats (101) at both ends respectively, and brush hairs (104) arranged on the rotating rollers (103); the brush hairs (104) abut against the outer periphery of the cylinder wall (201), and when the screening cylinder (2) rotates, the screening cylinder (2) can drive the rolling brush to rotate.

5. The rice raw material screening device according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Two opposite sides of the discharge pipe (4) are respectively connected with an air inlet pipe (401) and an air outlet pipe (402), and a blower (105) connected with the air inlet pipe (401) is arranged below the rack (1). 6.The rice raw material screening device according to claim 5, characterized in that: An outlet of the air inlet pipe (401) is connected with the discharge pipe (4) by being obliquely upward from the outside of the discharge pipe (4), and an inlet of the air outlet pipe (402) extends into the discharge pipe (4) and is obliquely downward toward the outlet of the air inlet pipe (401). 7.The rice raw material screening device according to claim 1, characterized in that: The magnetic assembly (9) is composed of a U-shaped magnet, or the magnetic assembly (9) is composed of a plurality of magnets arranged in a U-shaped structure. 8.The rice raw material screening device according to claim 7, characterized in that: A discharge hopper (106) is arranged on the rack (1) and below the screening cylinder (2); and / or a material collecting groove (801) is arranged on the support frame (8) and below the conveying belt (7).

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