A raw material screening device for edible oil processing
By combining a multi-layer screening structure with an air separation component, the problem of existing devices being unable to screen impurities of similar size has been solved, achieving efficient screening of edible oil raw materials and improving the quality of the raw materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JINLONG CEREALS & OILS CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-06-09
AI Technical Summary
Existing screening devices are unable to effectively separate granular impurities and empty rapeseed of similar size, resulting in poor quality of edible oil raw materials.
The system employs a multi-layer screening structure, including a first screen and an air separator, combined with a screw feeder and a vibrator. Through multiple screenings and air separations, it discharges large particles, heavier impurities, lighter impurities, small particles, and dust impurities respectively.
This enables comprehensive screening of edible oil raw materials, improves raw material quality, and ensures effective removal of impurities.
Smart Images

Figure CN224332677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, specifically to a raw material screening device for edible oil processing. Background Technology
[0002] During the production and processing of edible oil, screening equipment is often required to screen the raw materials. For example, rapeseed contains dust, particulate impurities, and empty rapeseed, which need to be screened out. However, existing screening devices generally use sieves to screen, which can only screen out dust particles that are too large or too small. They are not good at screening out particulate impurities and empty rapeseed that are similar in size to rapeseed. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a raw material screening device for edible oil processing, so as to solve the problems mentioned in the background art.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: a raw material screening device for edible oil processing, including a screening box and a storage hopper set at the upper end of the screening box. The screening box is vertically arranged with a first screen, an air separation component and a second screen for screening materials. The first screen is set at the upper end of the screening box to screen out large particulate impurities in the materials.
[0005] The air separation assembly includes an air guide that blows the first screen to guide the material, and a heavy impurity discharge channel, a grain discharge channel, and a light impurity discharge channel arranged sequentially inside the screening box. A dust channel is also provided on one side of the screening box. The dust channel is connected to a spiral dust collector through an air duct so that the dust can be sucked in and removed by the spiral dust collector. The second screen is installed at the lower end of the grain discharge channel to screen out small particle impurities in the grain.
[0006] As a further embodiment of this utility model:
[0007] The first screen component includes a first screen plate installed at an inclination inside the screening box and a first screw feeder disposed on one side of the screening box. The upper end of the first screw feeder is connected to the inside of the screening box to receive large particle impurities discharged from the first screen plate. A first vibrator to improve the screening effect is installed on one side of the first screen plate.
[0008] As a further embodiment of this utility model:
[0009] The sorting box body is located at the lower end of the first screen plate and is also provided with a first feeding hopper for collecting falling materials. The lower end of the first feeding hopper is provided with a first discharge port. The heavy and mixed material feeding channel is located at the lower end of the first discharge port, and the first discharge port is close to the air guide component.
[0010] As a further embodiment of this utility model:
[0011] The air guide includes an air storage cylinder and an air guide port located on one side of the air storage cylinder. The air guide port is connected to the air storage cylinder. An air pipe is provided on the outside of the air storage cylinder and is connected to the air storage tank through the air pipe to stably deliver airflow to the air guide port.
[0012] As a further embodiment of this utility model:
[0013] The screening box is provided with two sets of partitions in parallel, which divide the heavy impurity feeding channel, the grain feeding channel and the light impurity feeding channel. The upper end of the partition is provided with an adjustment plate for adjusting the material guiding area. The adjustment plate is rotatably installed on the upper end of the partition and is connected and positioned to the adjustment component at the outer end of the screening box through the plate shaft.
[0014] As a further embodiment of this utility model:
[0015] The adjusting component includes a handle connected to the plate shaft and a pin located at the outer end of the handle. The screening box body has an arc-shaped positioning plate corresponding to the pin, with positioning holes distributed on the positioning plate. The pin is elastically mounted on the handle by a spring, and the outer end of the pin has a push handle for easy manipulation. Specifically, the pin is pushed into the corresponding positioning hole by the spring to prevent the handle from rotating, thereby fixing the adjusting plate in the corresponding position.
[0016] As a further embodiment of this utility model:
[0017] One side of the heavy and mixed material feeding channel is connected to the second screw feeder, and one side of the light and mixed material feeding channel is connected to the third screw feeder. The lower end of the grain feeding channel is provided with a second discharge port to guide the material onto the second screen through the second discharge port.
[0018] As a further embodiment of this utility model:
[0019] The lower end of the dust channel is provided with a third discharge port, through which some of the falling impurities are discharged from the third screw feeder, and the dust discharged from the light impurity discharge channel is absorbed.
[0020] As a further embodiment of this utility model:
[0021] The second screen includes a second screen plate installed at the lower end of the screening box and a fourth spiral feeder set on one side of the screening box to discharge the material on the second screen plate through the fourth spiral feeder. A second vibrator to improve the screening effect is installed on one side of the second screen plate. A second hopper for collecting small particulate impurities is also provided at the lower end of the second screen plate. A fifth spiral feeder is provided at the lower end of the second hopper to discharge small particulate impurities.
[0022] Compared with existing technologies, the beneficial effects of this invention are as follows: This device utilizes a first screen, an air separation component, and a second screen to perform multiple screenings, thereby separately removing large particles, heavier impurities, lighter impurities, small particles, and dust impurities from the rapeseed, achieving a more comprehensive screening of the raw materials and improving their quality. The device separates large and small particles using the first and second screen plates, and uses air separation to sieve the materials in the raw materials. The adjusting plate at the top of the partition plate can be adjusted according to the range of material fall, making the material separation more accurate. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a partial cross-sectional view of the present invention.
[0025] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;
[0026] The diagram shows the following components: 1. Screening box; 2. Storage hopper; 3. First screen plate; 4. Air storage cylinder; 5. Baffle plate; 6. Second screen plate; 11. Heavy and impurity feeding channel; 12. Grain feeding channel; 13. Light and impurity feeding channel; 14. Dust channel; 15. Air duct; 16. Second screw feeder; 17. Third screw feeder; 18. Second discharge port; 19. Third discharge port; 31. First screw feeder; 32. First vibrator; 33. First hopper; 34. First discharge port; 41. Air guide; 42. Air pipe; 51. Adjusting plate; 52. Plate shaft; 53. Handle; 54. Pin; 55. Positioning plate; 56. Positioning hole; 57. Spring; 58. Push handle; 61. Fourth screw feeder; 62. Second vibrator; 63. Second hopper; 64. Fifth screw feeder. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.
[0028] like Figures 1-3 As shown,
[0029] This embodiment provides a raw material screening device for edible oil processing, including a screening box 1 and a storage hopper 2 disposed at the upper end of the screening box 1. The screening box 1 is vertically arranged with a first screen, an air separation component and a second screen for screening materials. The first screen is disposed at the upper end of the screening box 1 to screen out large particulate impurities in the materials.
[0030] The air separation assembly includes an air guide that blows the first screen to guide the material, and a heavy impurity discharge channel 11, a grain discharge channel 12, and a light impurity discharge channel 13 arranged sequentially in the screening box 1. A dust channel 14 is also provided on one side of the screening box 1. The dust channel 14 is connected to a spiral dust collector through an air duct 15 so that the dust can be drawn in and removed by the spiral dust collector. The second screen is installed at the lower end of the grain discharge channel 12 to screen out small particle impurities in the grain.
[0031] In this embodiment, the first screen component includes a first screen plate 3 installed at an inclination inside the screening box 1 and a first spiral feeder 31 disposed on one side of the screening box 1. The upper end of the first spiral feeder 31 is connected to the interior of the screening box 1 to receive large particle impurities discharged by the first screen plate 3. A first vibrator 32 for improving the screening effect is installed on one side of the first screen plate 3.
[0032] The box-type sorting box is located at the lower end of the first screen plate 3 and is also provided with a first discharge hopper 33 for collecting falling materials. The lower end of the first discharge hopper 33 is provided with a first discharge port 34. The heavy and mixed material discharge channel 11 is located at the lower end of the first discharge port 34, and the first discharge port 34 is close to the air guide component.
[0033] In this embodiment, the air guide includes an air storage cylinder 4 and an air guide port 41 disposed on one side of the air storage cylinder 4. The air guide port 41 is connected to the air storage cylinder 4. An air pipe 42 is provided on the outside of the air storage cylinder 4 and is connected to the air storage tank through the air pipe 42 to stably deliver airflow to the air guide port 41.
[0034] In this embodiment, two sets of partitions 5 are arranged side by side in the screening box 1, and the two sets of partitions 5 divide the heavy impurity feeding channel 11, the grain feeding channel 12 and the light impurity feeding channel 13. The upper end of the partition 5 is provided with an adjustment plate 51 for adjusting the material guiding area. The adjustment plate 51 is rotatably installed on the upper end of the partition 5 and is connected and positioned to the adjustment component at the outer end of the screening box 1 through the plate shaft 52.
[0035] The adjusting component includes a handle 53 connected to the plate shaft 52 and a pin 54 disposed at the outer end of the handle 53. The screening box 1 has an arc-shaped positioning plate 55 corresponding to the pin 54, with positioning holes 56 distributed on the positioning plate 55. The pin 54 is elastically mounted on the handle 53 by a spring 57, and the outer end of the pin 54 has a push handle 58 for easy manipulation. Specifically, the pin 54 is pushed into the corresponding positioning hole 56 by the spring 57 to prevent the handle 53 from rotating, thereby fixing the adjusting plate 51 in the corresponding position.
[0036] In this embodiment, one side of the heavy and mixed material feeding channel 11 is connected to the second screw feeder 16, and one side of the light and mixed material feeding channel 13 is connected to the third screw feeder 17. The lower end of the grain feeding channel 12 is provided with a second discharge port 18 so that the material can be introduced onto the second screen through the second discharge port 18.
[0037] The lower end of the dust channel 14 is provided with a third discharge port 19, through which some of the fallen impurities are discharged from the third screw feeder 17 and the dust discharged from the light impurity discharge channel 13 is absorbed.
[0038] In this embodiment, the second screen component includes a second screen plate 6 inclinedly installed at the lower end of the screening box 1 and a fourth spiral feeder 61 disposed on one side of the screening box 1 to discharge the material on the second screen plate 6 through the fourth spiral feeder 61. A second vibrator 62 for improving the screening effect is installed on one side of the second screen plate 6. A second hopper 63 for collecting small particulate impurities is also provided at the lower end of the second screen plate 6. A fifth spiral feeder 64 is provided at the lower end of the second hopper 63 to discharge small particulate impurities.
[0039] Specifically, the device utilizes a first screen, an air separation assembly, and a second screen for multiple screenings to separately remove large particles, heavier impurities, lighter impurities, small particles, and dust impurities from the rapeseed, achieving a more comprehensive screening of the raw materials and improving their quality. The device uses the first screen plate 3 and the second screen plate to separate large and small particles respectively, and air separation to further sieve the materials in the raw materials. The adjusting plate 51 at the upper end of the partition plate 5 can be adjusted according to the range of material falling, making the material separation more accurate.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A raw material screening device for edible oil processing, comprising a screening box (1) and a storage hopper (2) disposed at the upper end of the screening box (1), characterized in that: The screening box (1) is vertically arranged with a first screen, an air separation component and a second screen for screening materials. The first screen is set at the upper end of the screening box (1) to screen out large particles of impurities in the materials. The air separation assembly includes an air guide that blows the first screen to guide the material, and a heavy impurity discharge channel (11), a grain discharge channel (12), and a light impurity discharge channel (13) arranged in sequence in the screening box (1). A dust channel (14) is also provided on one side of the screening box (1). The dust channel (14) is connected to a spiral dust collector through an air duct (15) so that it can be sucked up and dust removed by the spiral dust collector. The second screen is installed at the lower end of the grain discharge channel (12) to screen out small particle impurities in the grain.
2. The raw material screening equipment for edible oil processing according to claim 1, characterized in that: The first screen component includes a first screen plate (3) installed at an inclination inside the screening box (1) and a first screw feeder (31) disposed on one side of the screening box (1). The upper end of the first screw feeder (31) is connected to the interior of the screening box (1) to receive large particle impurities discharged by the first screen plate (3). A first vibrator (32) for improving the screening effect is installed on one side of the first screen plate (3).
3. The raw material screening equipment for edible oil processing according to claim 2, characterized in that: The box-selection box body is located at the lower end of the first screen plate (3) and is also provided with a first discharge hopper (33) for collecting falling materials. The lower end of the first discharge hopper (33) is provided with a first discharge port (34). The heavy and mixed material discharge channel (11) is located at the lower end of the first discharge port (34), and the first discharge port (34) is close to the air guide.
4. The raw material screening equipment for edible oil processing according to claim 3, characterized in that: The air guide includes an air storage cylinder (4) and an air guide port (41) disposed on one side of the air storage cylinder (4). The air guide port (41) is connected to the air storage cylinder (4). An air pipe (42) is provided on the outside of the air storage cylinder (4) and is connected to the air storage tank through the air pipe (42) to stably deliver airflow to the air guide port (41).
5. The raw material screening equipment for edible oil processing according to claim 4, characterized in that: The screening box (1) is provided with two sets of partitions (5) arranged in parallel, and the two sets of partitions (5) divide the heavy impurity feeding channel (11), the grain feeding channel (12) and the light impurity feeding channel (13). The upper end of the partition (5) is provided with an adjustment plate (51) for adjusting the material guiding area. The adjustment plate (51) is rotatably installed on the upper end of the partition (5) and is connected and positioned to the adjustment component at the outer end of the screening box (1) through the plate shaft (52).
6. The raw material screening equipment for edible oil processing according to claim 5, characterized in that: The adjusting component includes a handle (53) connected to the plate shaft (52) and a pin (54) set at the outer end of the handle (53). The screening box (1) is provided with an arc-shaped positioning plate (55) corresponding to the pin (54). Positioning holes (56) are distributed on the positioning plate (55). The pin (54) is elastically mounted on the handle (53) by a spring (57). The outer end of the pin (54) is provided with a push handle (58) that is easy for personnel to turn.
7. The raw material screening equipment for edible oil processing according to claim 5, characterized in that: The heavy and mixed material feeding channel (11) is connected to the second screw feeder (16) on one side, and the light and mixed material feeding channel (13) is connected to the third screw feeder (17) on one side. The lower end of the grain feeding channel (12) is provided with a second discharge port (18) so that the material can be introduced onto the second screen through the second discharge port (18).
8. The raw material screening equipment for edible oil processing according to claim 7, characterized in that: The lower end of the dust channel (14) is provided with a third discharge port (19) to discharge some of the fallen impurities from the third screw feeder (17) through the third discharge port (19) and absorb the dust discharged from the light impurity discharge channel (13).
9. The raw material screening equipment for edible oil processing according to claim 7, characterized in that: The second screen includes a second screen plate (6) installed at the lower end of the screening box (1) and a fourth spiral feeder (61) set on one side of the screening box (1) to discharge the material on the second screen plate (6) through the fourth spiral feeder (61). A second vibrator (62) to improve the screening effect is installed on one side of the second screen plate (6). The lower end of the second screen plate (6) is also provided with a second hopper (63) for collecting small particle impurities. The lower end of the second hopper (63) is provided with a fifth spiral feeder (64) to discharge small particle impurities.