A raw material impurity removing and screening pretreatment device for edible oil processing

Abstract

The application discloses a raw material impurity removing and screening pretreatment device for edible oil processing, and belongs to the technical field of edible oil processing equipment, and specifically comprises a sieve box, a feeding port is formed in the sieve box, and a feeding device is arranged above the feeding port; the feeding device comprises a rack, a feeding hopper, a soft connection hopper and a anti-blocking hopper, the feeding hopper is fixedly connected to the rack, and the feeding hopper is fixedly connected to the rack; the feeding end of the soft connection hopper is fixedly communicated with the discharging end of the feeding hopper; the feeding end of the anti-blocking hopper is fixedly communicated with the discharging end of the soft connection hopper, the discharging end of the anti-blocking hopper is movably inserted into the feeding port and fixedly connected with the sieve box, and a material arch breaking mechanism is arranged in the anti-blocking hopper; the vibration generated by the sieve box during work is used as power to make the arch breaking cone reciprocatingly float out of synchronization with the vibration frequency of the sieve box, continuously break the material arch and buffer the impact force of the falling raw material.

Description

Technical Field

[0001] This invention belongs to the technical field of edible oil processing equipment, specifically relating to a raw material impurity removal and screening pretreatment device for edible oil processing. Background Technology

[0002] Before edible oil processing raw materials enter the pressing or leaching process, they must be screened and impurities removed to remove soil, stones, stems and leaves, metal impurities and moldy particles.

[0003] Oilseed raw materials (especially those with high moisture content, high oil content, or irregular shapes) are prone to "arching" or "bridging" at the feed hopper inlet, leading to interruptions in feeding and affecting the continuity and efficiency of screening. Existing technologies often employ the addition of vibrators, air hammers, or spiral arch breakers, but these methods require additional power sources, increasing energy consumption and potential failure points. Furthermore, vibrators can exacerbate equipment wear. Therefore, there is a need to provide a raw material impurity removal and screening pretreatment device for edible oil processing to solve the aforementioned technical problems. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a raw material impurity removal and screening pretreatment device for edible oil processing. This device utilizes the vibration generated by the screen box itself during operation as power, causing the anti-bridging cone to reciprocate and float asynchronously with the screen box's vibration frequency (vibration effect), continuously breaking up material bridging. It also buffers the impact force of falling raw materials, eliminating the need for additional vibration motors, air hammers, or rotating scrapers, thus saving energy and reducing the failure rate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a raw material impurity removal and screening pretreatment device for edible oil processing, comprising a screen box, wherein a feed inlet is provided on the screen box, and a feeding device is provided above the feed inlet;

[0006] The feeding device includes a frame, a feeding hopper, a flexible connecting hopper, and an anti-blocking hopper. The feeding hopper is fixedly connected to the frame and the feeding hopper is fixedly connected to the frame. A material adjustment mechanism is provided inside the feeding hopper. The feed end of the flexible connecting hopper is fixedly connected to the discharge end of the feed hopper; The feed end of the anti-blocking hopper is fixedly connected to the discharge end of the flexible connection hopper. The discharge end of the anti-blocking hopper is movably inserted into the feed inlet and fixedly connected to the screen box. A material arch-breaking mechanism is provided inside the anti-blocking hopper. The material arch-breaking mechanism includes support columns arranged in a linear array, with multiple arch-breaking cones vertically slidably connected to the support columns along their axial direction. The arch-breaking cones are connected to the support columns via reset components.

[0007] Preferably, the outer sides of both the feed end of the feed hopper and the feed end of the flexible connection hopper are fixedly connected to a first connecting flange, and the two first connecting flanges are fixedly connected by bolts.

[0008] Preferably, the flexible connecting bucket is a rubber flexible connecting bucket or a canvas flexible connecting bucket.

[0009] Preferably, the discharge end and the outer side of the feed inlet of the anti-blocking hopper are both fixedly connected to a second connecting flange, a rubber vibration damping pad is provided between the two second connecting flanges, and the two second connecting flanges are fixedly connected by bolts.

[0010] Preferably, the material adjustment mechanism includes multiple adjustment plates arranged in a linear array. A rotating shaft is fixedly connected to one side of each adjustment plate. Both ends of the rotating shaft are fitted with support sleeves via bearings. The support sleeves are fixedly connected to the mounting holes opened inside the feed hopper.

[0011] Preferably, the edge of the adjustment plate is provided with an arc-shaped chamfer.

[0012] Preferably, a guide plate is obliquely and fixedly connected above one of the adjusting plates inside the feed hopper, and the bottom end of the guide plate abuts against the upper surface of the adjusting plate.

[0013] Preferably, the feed hopper is provided with a drive assembly, the drive assembly including a push-pull rod, the push-pull rod being horizontally slidably connected to the underside of the adjusting plate, the push-pull rod being slidably fitted with two wear-resistant sleeves, the two wear-resistant sleeves being respectively fixedly connected to the inside of push-pull holes opened on the side wall of the feed hopper, one end of the push-pull rod being connected to a telescopic cylinder fixedly connected to the frame, and the push-pull rod being hinged with a hinge rod corresponding to each of the adjusting plates, the other end of the hinge rod being hinged to the adjusting plate.

[0014] Preferably, the reset component includes a sliding shaft and a buffer spring. The lower end of the sliding shaft passes through a sliding hole provided on the support column and is fixedly connected to a limit plate. A lower plate is also slidably sleeved on the sliding shaft above the support column. The lower plate is fixedly connected to the support column. An upper plate that is fixedly connected to the arch-breaking cone is fixedly connected to the upper end of the sliding shaft. A buffer spring is sleeved on the outer side of the sliding shaft. The two ends of the buffer spring are fixedly connected to the upper plate and the lower plate, respectively.

[0015] Preferably, a sealing cover is also fitted on the outside of the buffer spring, and the two ends of the sealing cover are fixedly connected to the upper plate and the lower plate, respectively.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes the vibration generated by the screen box itself during operation as a power source, causing the arch-breaking cone to reciprocate and float (vibration effect) at a frequency asynchronous with the screen box vibration frequency, continuously breaking up material bridging, and also buffering the impact force of falling raw materials. It eliminates the need for additional configuration of vibration motors, air hammers or rotating scrapers, saving energy and reducing failure rate.

[0017] 2. This invention uses multiple linear array adjustment plates, which can continuously adjust the opening of the feed section. It can be used to compensate for the flowability differences of different oilseed varieties (such as rapeseed, soybeans, and peanuts), and can also adjust the feed rate in real time according to the screen box load to ensure maximum screening efficiency.

[0018] 3. The flexible connection bucket of this invention achieves vibration isolation of the main body and blocks most of the vibration transmission; at the same time, a rubber vibration damping pad is added at the second connecting flange to further absorb high-frequency residual vibration, keeping the feed hopper and frame stationary, resulting in less shaking of the whole machine, lower noise, and improved service life of the equipment. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the left-side cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the feeding device of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the right-side cross-sectional structure of the feeding device of the present invention; In the diagram: 1. Screen box; 2. Feed inlet; 3. Frame; 4. Feed hopper; 5. Flexible connection hopper; 6. Anti-clogging hopper; 7. First connecting flange; 8. Second connecting flange; 9. Rubber shock absorber; 10. Material adjustment mechanism; 101. Adjusting plate; 102. Rotating shaft; 103. Support sleeve; 104. Push-pull rod; 105. Wear-resistant sleeve; 106. Telescopic cylinder; 107. Hinge rod; 11. Guide plate; 12. Material arching mechanism; 121. Support column; 122. Arch breaking cone; 123. Sliding shaft; 124. Limiting plate; 125. Lower plate; 126. Upper plate; 127. Buffer spring; 128. Sealing cover. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 Please see Figure 1-6 This embodiment provides the following technical solution: a raw material impurity removal and screening pretreatment device for edible oil processing, including a screen box 1, which is a vibrating screen box 1, and the screen box 1 is provided with multiple layers of screens inside for grading and screening oil raw materials.

[0022] The top of the screen box 1 has a feed inlet 2, and a feeding device is installed above the feed inlet 2. The feeding device includes a frame, a feed hopper 4, a flexible connecting hopper 5, and an anti-blocking hopper 6. The feed hopper 4 is fixedly connected to the frame. The flexible connecting hopper 5 is a rubber flexible connecting hopper 5 or a canvas flexible connecting hopper 5. The feed end of the flexible connecting hopper 5 is connected to the discharge end of the feed hopper 4. The feed end of the anti-blocking hopper 6 is connected to the discharge end of the flexible connecting hopper 5. The outer sides of the feed ends of the feed hopper 4 and the feed ends of the flexible connecting hopper 5 are fixedly connected to a first connecting flange 7, and the two first connecting flanges 7 are fixedly connected by bolts. The discharge end of the anti-blocking hopper 6 is movably inserted into the feed inlet 2 and fixedly connected to the screen box 1. The discharge end of the anti-blocking hopper 6 and the outer side of the inlet 2 are both fixedly connected with second connecting flanges 8. Rubber vibration damping pads are installed between the two second connecting flanges 8, and the two second connecting flanges 8 are fixedly connected by bolts. Through the set flexible connecting hopper 5, the set feed hopper 4, flexible connecting hopper 5 and anti-blocking hopper 6, the vibration generated by the screen box 1 itself during operation can be used as power to make the anti-blocking hopper 6 vibrate with the screening, and realize the main body vibration isolation, blocking most of the vibration transmission; at the same time, rubber vibration damping pads are added at the second connecting flanges 8 to further absorb high-frequency residual vibration, the feed hopper 4 and the frame remain stationary, the whole machine shakes little, the noise is low, and the service life of the equipment is improved.

[0023] In some embodiments, the diameter of the feed inlet 2 is slightly larger than the outer diameter of the discharge outlet of the anti-clogging hopper 6.

[0024] Example 2 The feed hopper 4 is equipped with a material adjustment mechanism 10, which includes multiple adjustment plates 101 arranged in a linear array. A rotating shaft 102 is fixedly connected to one side of each adjustment plate 101. Support sleeves 103 are rotatably fitted onto both ends of the rotating shaft 102 via bearings. The support sleeves 103 are fixedly connected to the mounting holes opened inside the feed hopper 4. Sealing rings are movably fitted onto the rotating shaft 102 on the side opposite the two bearings. The sealing rings are fixedly connected to the inner wall of the support sleeves 103. This ensures the stability of the adjustment plates 101 during downward flipping to open or upward flipping to close, and also protects the bearings, preventing dust from the feed hopper 4 from entering the bearings and affecting their normal use and service life.

[0025] like Figure 3 As shown, a guide plate 11 is fixedly connected at an incline above the rightmost adjusting plate 101 inside the feed hopper 4. The bottom end of the guide plate 11 abuts against the upper surface of the adjusting plate 101. The guide plate 11 is set with the left side lower and the right side higher. When all the adjusting plates 101 are in a horizontal state, the feed hopper 4 is in a closed state. When the adjusting plate 101 gradually flips downward with its rotation axis 102 as the center, the material can flow out quantitatively from the gap between the adjusting plates 101.

[0026] In some embodiments, the edge of the adjusting plate 101 is provided with an arc-shaped chamfer to prevent material from getting stuck or accumulating.

[0027] like Figure 3 As shown, a drive assembly is provided on the feed hopper 4. The drive assembly includes a push-pull rod 104, which is horizontally slidably connected to the lower part of the adjusting plate 101. Two wear-resistant sleeves 105 are slidably sleeved on the push-pull rod 104. The wear-resistant sleeves 105 are made of wear-resistant polyurethane material. The two wear-resistant sleeves 105 are respectively fixedly connected to the push-pull holes opened on the side wall of the feed hopper 4. One end of the push-pull rod 104 is connected to a telescopic cylinder 106 fixedly connected to the frame. The cylinder barrel of the telescopic cylinder 106 is fixedly connected to... The piston rod of the telescopic cylinder 106 is fixedly connected to the left end of the push-pull rod 104 and attached to the frame. The push-pull rod 104 is hinged with a hinge rod 107 corresponding to each adjusting plate 101. The other end of the hinge rod 107 is hinged to the adjusting plate 101. When the push-pull rod 104 slides horizontally to the right, the adjusting plate 101 can be gradually flipped downward with its rotation axis 102 as the center under the drive of the hinge rod 107, so that the gap between adjacent adjusting plates 101 can gradually increase.

[0028] Example 3 The anti-blocking hopper 6 is equipped with a material breaking mechanism, which includes support columns 121 arranged in a linear array. Multiple breaking cones 122 are vertically slidably connected to the support columns 121 along their axial direction. The breaking cones 122 are connected to the support columns 121 through a reset member. The breaking cones 122 can use the vibration generated by the screen box 1 itself during operation as a power source. By connecting the breaking cones 122 through the reset member, the breaking cones 122 can generate a reciprocating floating vibration effect that is asynchronous with the vibration frequency of the screen box 1, continuously breaking the material bridging. It can also buffer the impact force of the raw material falling. There is no need to configure an additional vibration motor, air hammer or rotating scraper, saving energy and reducing the failure rate.

[0029] The reset component includes a sliding shaft 123 and a buffer spring 127. The lower end of the sliding shaft 123 passes through a sliding hole provided on the support column 121 and is fixedly connected to a limit plate 124. A lower plate 125 is also slidably sleeved on the sliding shaft 123 above the support column 121. The lower plate 125 is fixedly connected to the support column 121. An upper plate 126, which is fixedly connected to the arch-breaking cone 122, is fixedly connected to the upper end of the sliding shaft 123. A buffer spring 127 is sleeved on the outer side of the sliding shaft 123. The two ends of the buffer spring 127 are fixedly connected to the upper plate 126 and the lower plate 125, respectively. Through the sliding shaft 123 and the buffer spring 127, the arch-breaking cone 122 can be vertically limited while generating a reciprocating floating vibration effect that is asynchronous with the vibration frequency of the screen box 1, continuously breaking the material bridging, and also buffering the impact force of the falling raw material. A sealing cover 128 is also fitted on the outside of the buffer spring 127. The two ends of the sealing cover 128 are fixedly connected to the upper plate 126 and the lower plate 125 respectively. The sealing cover 128 is a rubber bellows. The sealing cover 128 can protect the buffer spring 127.

[0030] In some embodiments, the arch-breaking cone 122 is conical with its tip pointing upwards, and the surface of the arch-breaking cone 122 is mirror-polished to prevent material from sticking.

[0031] The working principle of the present invention is as follows: the raw material is added from the top of the feed hopper 4 and flows out quantitatively through the gap between the adjusting plates 101. It passes through the soft connecting hopper 5 and the anti-blocking hopper 6 in sequence, and enters the screen box 1 from the feed inlet 2 for screening. After the screen box 11 is started, it vibrates. Since the anti-blocking hopper 6 is fixed to the screen box 1, the anti-blocking hopper 6 vibrates synchronously with the screen box 1. Under the combined action of vibration inertia and the elastic force of buffer spring 127, the arch-breaking cone 122 inside the anti-blocking hopper 6 moves up and down in a small amplitude relative to the anti-blocking hopper 6 along the sliding shaft 123. The frequency of this movement is different from the vibration frequency of the screen box 1, forming a "vibration". This continuous floating constantly impacts and destroys the material arch bridge that may accumulate at the discharge port of the anti-blocking hopper 6, ensuring smooth material discharge. Meanwhile, due to the isolation effect of the soft connection hopper 5 and the rubber vibration damping pad, the vibration of the screen box 1 will not be transmitted to the feed hopper 4 and the frame. The whole machine runs smoothly. The operator can adjust the opening size of the adjustment plate 101 in real time by controlling the telescopic cylinder 106 according to the material accumulation on the screen surface of the screen box 1 to achieve the optimal feeding amount.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A raw material impurity removal and screening pretreatment device for edible oil processing, characterized in that: Includes a screen box (1), on which a feed inlet (2) is provided, and a feeding device is provided above the feed inlet (2); The feeding device includes a frame, a feeding hopper (4), a flexible connecting hopper (5) and an anti-blocking hopper (6). The feeding hopper (4) is fixedly connected to the frame. The feeding hopper (4) is fixedly connected to the frame. A material adjustment mechanism (10) is provided inside the feeding hopper (4). The feed end of the flexible connecting hopper (5) is fixedly connected to the discharge end of the feed hopper (4); The feed end of the anti-blocking hopper (6) is fixedly connected to the discharge end of the flexible connection hopper (5). The discharge end of the anti-blocking hopper (6) is movably inserted into the feed inlet (2) and fixedly connected to the screen box (1). The anti-blocking hopper (6) is equipped with a material arch breaking mechanism. The material arch-breaking mechanism includes support columns (121) arranged in a linear array. Multiple arch-breaking cones (122) are vertically slidably connected to the support columns (121) along their axial direction. The arch-breaking cones (122) are connected to the support columns (121) through reset components.

2. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 1, characterized in that: The feed end of the feed hopper (4) and the feed end of the flexible connecting hopper (5) are both fixedly connected to the outer side of the first connecting flange (7), and the two first connecting flanges (7) are fixedly connected by bolts.

3. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 2, characterized in that: The flexible connecting bucket (5) is a rubber flexible connecting bucket (5) or a canvas flexible connecting bucket (5).

4. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 1, characterized in that: The discharge end of the anti-blocking hopper (6) and the outside of the inlet (2) are both fixedly connected with second connecting flanges (8). A rubber damping pad is provided between the two second connecting flanges (8), and the two second connecting flanges (8) are fixedly connected by bolts.

5. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 1, characterized in that: The material adjustment mechanism (10) includes multiple adjustment plates (101) arranged in a linear array. A rotating shaft (102) is fixedly connected to one side of the adjustment plate (101). Both ends of the rotating shaft (102) are fitted with support sleeves (103) through bearings. The support sleeves (103) are fixedly connected to the mounting holes opened inside the feed hopper (4).

6. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 5, characterized in that: The edge of the adjustment plate (101) is provided with an arc-shaped chamfer.

7. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 6, characterized in that: Inside the feed hopper (4), a guide plate (11) is fixedly connected at an incline above one of the adjustment plates (101), and the bottom end of the guide plate (11) abuts against the upper surface of the adjustment plate (101).

8. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 5, characterized in that: The feed hopper (4) is provided with a drive assembly, which includes a push-pull rod (104). The push-pull rod (104) is horizontally slidably connected to the lower part of the adjusting plate (101). Two wear-resistant sleeves (105) are slidably sleeved on the push-pull rod (104). The two wear-resistant sleeves (105) are respectively fixedly connected to the push-pull holes opened on the side wall of the feed hopper (4). One end of the push-pull rod (104) is connected to a telescopic cylinder (106) fixedly connected to the frame. A hinge rod (107) corresponding to each adjusting plate (101) is hinged on the push-pull rod (104). The other end of the hinge rod (107) is hinged to the adjusting plate (101).

9. The raw material impurity removal and screening pretreatment device for edible oil processing according to claim 1, characterized in that: The reset component includes a sliding shaft (123) and a buffer spring (127). The lower end of the sliding shaft (123) passes through a sliding hole provided on the support column (121) and is fixedly connected to a limit plate (124). A lower plate (125) is also slidably sleeved on the sliding shaft (123) above the support column (121). The lower plate (125) is fixedly connected to the support column (121). An upper plate (126) is fixedly connected to the upper end of the sliding shaft (123) and is fixedly connected to the arch-breaking cone (122). A buffer spring (127) is sleeved on the outer side of the sliding shaft (123). The two ends of the buffer spring (127) are fixedly connected to the upper plate (126) and the lower plate (125) respectively.

10. A raw material impurity removal and screening pretreatment device for edible oil processing according to claim 9, characterized in that: A sealing cover (128) is also fitted on the outside of the buffer spring (127), and the two ends of the sealing cover (128) are fixedly connected to the upper plate (126) and the lower plate (125) respectively.

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