Primary oil residue centrifugal machine

Abstract

The utility model relates to a primary oil residue centrifugal machine. Comprising a rack and a filtering machine, the filtering machine comprises an outer machine barrel and an inner filtering barrel which are both of a circular truncated cone structure, the lower end face of the outer machine barrel is connected to the rack, a plurality of filtering holes are formed in the outer side wall of the inner filtering barrel, the inner filtering barrel is nested in the outer machine barrel and does not make contact with the outer machine barrel, and the front end of the inner filtering barrel is connected with the front end of the outer machine barrel through a front bearing; the rear end of the inner filter cylinder is connected with the rear end of the outer machine cylinder through a rear bearing, the front sealing plate is detachably connected to the front end of the outer machine cylinder and abuts against the front bearing, the rear sealing plate is detachably connected to the rear end of the outer machine cylinder and abuts against the rear bearing, and the driving assembly is arranged on the rack and drives the inner filter cylinder to rotate. According to the utility model, the inner filter cylinder is sleeved in the outer machine cylinder, when the inner filter cylinder is driven to rotate, oil residues in the inner filter cylinder can be thrown on the inner side wall of the outer machine cylinder by virtue of centrifugal force and are guided out, and the oil residues can move towards the front end in the inclined inner filter cylinder until the oil residues fall out and enter the next process.

Description

Technical Field

[0001] This utility model belongs to the field of oil extraction equipment, specifically relating to a centrifuge for primary oil residue. Background Technology

[0002] In the refining of animal fats, after refining, the liquid fat is piped out, while the residue is conveyed by a conveyor belt. The fat attached to the residue drips down the conveyor belt under gravity and is collected and sent out. At this point, the residue is still rich in fat, which accounts for at least 50% of the residue. If it is not further extracted, it will result in a lot of waste and be detrimental to the production of the oil. However, current fat separation equipment often uses horizontal spiral sedimentation centrifuges. But this equipment has a big problem: it is difficult to separate and clean the fat. Animal fat will solidify into blocks at low temperatures. When production is suspended for a period of time, the solidified animal fat will affect subsequent production. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a centrifuge for virgin oil residue. By installing an inner filter cylinder inside an outer cylinder, when the inner filter cylinder is driven to rotate, the oil residue inside the inner filter cylinder will be thrown onto the inner wall of the outer cylinder by centrifugal force and discharged. The oil residue will move towards the front end inside the inclined inner filter cylinder until it falls out and enters the next process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A centrifuge for virgin oil residue includes a frame and a filter. The filter includes an outer cylinder, an inner filter cylinder, a front sealing plate, a rear sealing plate, and a drive assembly. Both the outer cylinder and the inner filter cylinder are frustum-shaped structures. The lower end face of the outer cylinder is connected to the frame. The outer cylinder has an inclined structure with a smaller front end and a larger rear end. The horizontal plane containing the center of the rear opening of the outer cylinder is higher than the horizontal plane containing the center of the front opening. The tangent line connecting the lower end of the outer cylinder to the frame is parallel to the horizontal plane. The outer wall of the inner filter cylinder has several filter holes. The inner filter cylinder is nested inside the outer cylinder and does not contact it. The front end of the inner filter cylinder is connected to the front end of the outer cylinder via a front bearing. The rear end of the inner filter cartridge is connected to the rear end of the outer casing via a rear bearing. The front sealing plate is detachably connected to the front end of the outer casing and abuts against the front bearing. The front sealing plate has a discharge port. The rear sealing plate is detachably connected to the rear end of the outer casing and abuts against the rear bearing. The rear sealing plate has a feed port. The lower end face of the outer casing has an oil outlet that communicates with the inner cavity of the outer casing. The drive assembly is mounted on the frame and drives the inner filter cartridge to rotate. The drive assembly includes a drive motor, a drive wheel, a drive belt, and a driven wheel. The drive motor is mounted on a fixed plate on the frame. The output end of the drive motor is connected to the drive wheel. The driven wheel is mounted on the outer wall of the front end of the inner filter cartridge. The drive belt is sleeved on the drive wheel and the driven wheel.

[0006] This centrifuge for virgin oil residue uses a frame to support the filter. The filter consists of an outer cylinder and an inner filter cylinder, both of which are frustum-shaped structures, smaller at the front and larger at the back. The inner filter cylinder is nested within the outer cylinder, and its outer wall has several filter holes. The centrifuge works by rotating the inner filter cylinder, which throws the oil residue onto the inner wall of the outer cylinder. Therefore, the outer cylinder must remain stationary while the inner filter cylinder rotates around the outer cylinder. The outer cylinder is supported by the frame. Since it is fixed, the inner filter cartridge needs to be driven to rotate. The front end of the inner filter cartridge is connected to the front end of the outer casing through the front bearing, and the rear end of the inner filter cartridge is connected to the rear end of the outer casing through the rear bearing. Therefore, with the bearing connection, the inner filter cartridge can rotate with the outer casing as the rotation center without contacting the outer casing. In order to prevent the bearing from falling off, the front bearing is pressed by the front sealing plate at the front end of the outer casing, and a discharge port is provided at the lower end of the front sealing plate. The rear bearing is pressed by the rear sealing plate at the rear end of the outer casing, and a feed port is provided at the upper end of the rear sealing plate.

[0007] If the axis of the outer casing is placed horizontally, the oil residue entering the inner filter cylinder can be centrifugally pressed, but the remaining oil residue inside will be difficult to remove, making it impossible to achieve the purpose of recycling. Therefore, the tangent connecting the lower end of the outer casing to the frame is kept horizontal, which results in the axis of the outer casing being tilted. This makes the horizontal plane of the center of the rear opening of the outer casing higher than the horizontal plane of the center of the front opening. Therefore, when the oil residue enters the inner filter cylinder from the feed inlet, the oil residue is in a horizontal state at the bottom of the inner filter cylinder. During the rotation of the inner filter cylinder, the oil residue adheres to the inner wall of the inner filter cylinder, causing the grease in the oil residue to be separated by centrifugation. When the inner filter cylinder stops, the oil residue at the top will be in a more forward position than the oil residue at the bottom. Under the action of gravity, when the oil residue falls to the bottom, it will be in a more forward position than its original bottom position. Therefore, in the cycle, the oil residue will gradually move closer to the discharge port under continuous filtration until it falls out of the discharge port, while the filtered grease is discharged from the oil outlet on the ground of the outer cylinder under the action of gravity.

[0008] To drive the inner filter cartridge to rotate, a drive assembly is installed that uses a drive motor to drive a drive wheel, which in turn drives a drive belt, thereby driving a driven wheel located on the outer side wall of the front end of the inner filter cartridge. The upper end of the front sealing plate has a transmission port through which the drive belt can pass. The front end of the inner filter cartridge fits into the inner side wall of the front sealing plate. Therefore, when the drive belt drives the driven wheel to rotate, it can drive the inner filter cartridge to rotate on the front bearing. To prevent slippage, a limiting groove is provided on the inner side wall of the bearing's inner ring, and a limiting post is provided on the driven wheel to match the limiting groove. During assembly, the front bearing is first driven into the front end of the inner filter cartridge, and then the driven wheel is fitted onto the front end of the inner filter cartridge, and the limiting post is inserted into the limiting groove. This allows the driven wheel to drive the front bearing and the inner filter cartridge to rotate simultaneously during rotation.

[0009] Furthermore, it also includes a stirring assembly, which includes a stirring motor and a stirrer. The stirring motor is disposed on the outer side wall of the front sealing plate, and the output end of the stirring motor passes through the front sealing plate and extends into the inner cavity of the inner filter cylinder. One end of the stirrer is connected to the output end of the stirring motor, and the other end of the stirrer is rotatably connected to a rotating seat on the inner side wall of the rear sealing plate. The stirrer is in the shape of a spiral stirring blade, and the stirrer is horizontally arranged. The outer edge of the stirring blade of the stirrer maintains a gap with the inner side wall of the inner filter cylinder.

[0010] Compared with the prior art, the advantages of this utility model are as follows: the inclined outer cylinder and inner filter cylinder make the oil residue entering the inner filter cylinder horizontal at the bottom of the inner filter cylinder. During the rotation of the inner filter cylinder, the oil residue adheres to the inner side wall of the inner filter cylinder, so that the oil is centrifugally separated. When the inner filter cylinder stops, the oil residue at the top will be in a more forward position than the oil residue at the bottom. Under the action of gravity, when the oil residue falls to the bottom, it will be in a more forward position than its original bottom position. Therefore, in the cycle, the oil residue will gradually move closer to the discharge port under continuous filtration until it falls out of the discharge port. The filtered oil is discharged from the oil outlet on the ground of the outer cylinder under the action of gravity. Under this centrifuge, oil residue that originally contained 50% oil can be pressed for oil, and the oil residue can be extracted up to 40% oil. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a front perspective view of the present invention;

[0013] Figure 2 This is a rear-view perspective view of the present invention;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This is a top view of the present invention;

[0016] Figure 5 For the present utility model Figure 4 AA section view;

[0017] Figure 6 For the present utility model Figure 5 A magnified view of section B;

[0018] Figure 7 For the present utility model Figure 5 A magnified view of a portion of point C.

[0019] The components are as follows: 1. Frame; 11. Fixing plate; 2. Filter; 21. Outer cylinder; 211. Oil outlet; 22. Inner filter cylinder; 221. Filter hole; 23. Front sealing plate; 231. Discharge port; 232. Transmission port; 24. Rear sealing plate; 241. Feed inlet; 242. Rotating seat; 25. Drive assembly; 251. Drive motor; 252. Drive wheel; 253. Drive belt; 254. Driven wheel; 26. Front bearing; 27. Rear bearing; 3. Mixing assembly; 31. Mixing motor; 32. Agitator. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The specific embodiments of this utility model will now be described with reference to the accompanying drawings:

[0022] like Figure 1-7As shown, a centrifuge for virgin oil residue includes a frame 1 and a filter 2. The filter 2 includes an outer cylinder 21, an inner filter cylinder 22, a front sealing plate 23, a rear sealing plate 24, and a drive assembly 25. Both the outer cylinder 21 and the inner filter cylinder 22 are frustoconical structures. The lower end face of the outer cylinder 21 is connected to the frame 1. The outer cylinder 21 has an inclined structure with a smaller front end and a larger rear end. The horizontal plane of the center of the rear opening of the outer cylinder 21 is higher than the horizontal plane of the center of the front opening. The tangent line connecting the lower end of the outer cylinder 21 to the frame 1 is parallel to the horizontal plane. The outer wall of the inner filter cylinder 22 is provided with a plurality of filter holes 221. The inner filter cylinder 22 is nested inside the outer cylinder 21 and does not contact the outer cylinder 21. The front end of the inner filter cylinder 22 is connected to the front end of the outer cylinder 21 through a front bearing 26, and the rear end of the inner filter cylinder 22 is connected to the outer cylinder 21 through a rear bearing 27. The rear end of the outer filter cylinder 21 is connected to the front end of the outer filter cylinder 21. The front sealing plate 23 is detachably connected to the front end of the outer filter cylinder 21 and abuts against the front bearing 26. The front sealing plate 23 is provided with a discharge port 231. The rear sealing plate 24 is detachably connected to the rear end of the outer filter cylinder 21 and abuts against the rear bearing 27. The rear sealing plate 24 is provided with a feed port 241. The lower end face of the outer filter cylinder 21 is provided with an oil outlet 211 that communicates with the inner cavity of the outer filter cylinder 21. The drive assembly 25 is set on the frame 1 and drives the inner filter cylinder 22 to rotate. The drive assembly 25 includes a drive motor 251, a drive wheel 252, a drive belt 253 and a driven wheel 254. The drive motor 251 is set on the fixed plate 11 on the frame 1. The output end of the drive motor 251 is connected to the drive wheel 252. The driven wheel 254 is set on the outer side wall of the front end of the inner filter cylinder 22. The drive belt 253 is sleeved on the drive wheel 252 and the driven wheel 254.

[0023] Furthermore, it also includes a stirring assembly 3, which includes a stirring motor 31 and a stirrer 32. The stirring motor 31 is disposed on the outer side wall of the front sealing plate 23. The output end of the stirring motor 31 passes through the front sealing plate 23 and extends into the inner cavity of the inner filter cylinder 22. One end of the stirrer 32 is connected to the output end of the stirring motor 31, and the other end of the stirrer 32 is rotatably connected to a rotating seat 242 on the inner side wall of the rear sealing plate 24. The stirrer 32 is in the shape of a spiral stirring blade. The stirrer 32 is horizontally arranged, and the outer edge of the stirring blade of the stirrer 32 maintains a gap with the inner side wall of the inner filter cylinder 22.

[0024] Description of the working principle of this utility model:

[0025] The centrifuge for primary oil residue using this structure uses a frame 1 to support a filter 2. The filter 2 consists of an outer cylinder 21 and an inner filter cylinder 22. Both the outer cylinder 21 and the inner filter cylinder 22 are frustum-shaped structures, with a smaller front end and a larger rear end. The inner filter cylinder 22 is nested within the outer cylinder 21. Several filter holes 221 are provided on the outer wall of the inner filter cylinder 22. The centrifuge works by rotating the inner filter cylinder 22, which throws the oil residue from the inner filter cylinder 22 onto the inner wall of the outer cylinder 21. Therefore, the outer cylinder 21 needs to be kept stationary while the inner filter cylinder 22 rotates around the outer cylinder 21, which is fixed in place by the frame 1. Therefore, it is necessary to drive the inner filter cartridge 22 to rotate. The front end of the inner filter cartridge 22 is connected to the front end of the outer casing 21 through the front bearing 26, and the rear end of the inner filter cartridge 22 is connected to the rear end of the outer casing 21 through the rear bearing 27. Thus, with the bearing connection, the inner filter cartridge 22 can rotate with the outer casing 21 as the rotation center without contacting the outer casing 21. In order to prevent the bearing from falling off, the front bearing 26 is pressed at the front end of the outer casing 21 through the front sealing plate 23, and a discharge port 231 is provided at the lower end of the front sealing plate 23. The rear bearing 27 is pressed at the rear end of the outer casing 21 through the rear sealing plate 24, and a feed port 241 is provided at the upper end of the rear sealing plate 24.

[0026] If the axis of the outer barrel 21 is placed horizontally, the oil residue entering the inner filter cylinder 22 can be centrifugally pressed, but the remaining oil residue inside will be difficult to remove, making it impossible to achieve the purpose of recycling. Therefore, the tangent connecting the lower end of the outer barrel 21 to the frame 1 is kept horizontal, which results in the axis of the outer barrel 21 being tilted. This makes the horizontal plane of the center of the rear opening of the outer barrel 21 higher than the horizontal plane of the center of the front opening of the outer barrel 21. Therefore, when the oil residue enters the inner filter cylinder 22 from the feed inlet 241, the oil residue is horizontal at the bottom of the inner filter cylinder 22. During the rotation of the inner filter cylinder 22, the oil residue adheres to the inner wall of the inner filter cylinder 22, causing the grease in the oil residue to be centrifugally separated. When the inner filter cylinder 22 stops, the oil residue at the top will be in a more forward position than the oil residue at the bottom. Under the action of gravity, when the oil residue falls to the bottom, it will be in a more forward position than its original bottom position. Therefore, in the cycle, the oil residue will gradually move closer to the discharge port 231 under continuous filtration until it falls out of the discharge port 231, while the filtered grease is discharged from the oil outlet 211 on the ground of the outer cylinder 21 under the action of gravity.

[0027] To prevent the oil residue from falling forward repeatedly by gravity when the machine is stopped, a stirring assembly 3 is added. A stirring motor 31 is installed on the outer wall of the front sealing plate 23, which drives the stirrer 32 inside the inner filter cylinder 22. The other end of the stirrer 32 is rotatably connected to the rotating seat 242 on the inner wall of the rear sealing plate 24. The stirrer 32 is in the shape of a spiral stirring blade. The outer edge of the stirring blade of the stirrer 32 is parallel to the bottom of the inner wall of the inner filter cylinder 22 and maintains a gap. Therefore, during the oil pressing process of the inner filter cylinder 22, the stirring motor 31 drives the stirrer 32 to rotate, which moves the oil residue at the bottom of the inner filter cylinder 22 toward the discharge port 231. The oil residue can be moved forward continuously without stopping the machine, thus maintaining continuous production.

[0028] To drive the inner filter cartridge 22 to rotate, the drive assembly 25 drives the drive wheel 252 via the drive motor 251. The drive wheel 252 drives the drive belt 253, which in turn drives the driven wheel 254 located on the outer side wall of the front end of the inner filter cartridge 22. The upper end of the front sealing plate 23 is provided with a transmission port 232 through which the drive belt 253 can pass. The front end of the inner filter cartridge 22 fits onto the inner side wall of the front sealing plate 23, thus the drive belt 253 drives the driven wheel 254. When rotating, the inner filter cartridge 22 can be driven to rotate on the front bearing 26. To avoid the possibility of slippage, a limiting groove can be provided on the inner side wall of the inner ring of the bearing, and a limiting post that matches the limiting groove is provided on the driven wheel 254. During assembly, the front bearing 26 is first driven into the front end of the inner filter cartridge 22, and then the driven wheel 254 is put onto the front end of the inner filter cartridge 22 and the limiting post is inserted into the limiting groove, so that the driven wheel 254 can drive the front bearing 26 and the inner filter cartridge 22 to rotate simultaneously during the rotation process.

[0029] The beneficial effects of this utility model are as follows: Through the inclined outer casing 21 and inner filter cartridge 22, the oil residue entering the inner filter cartridge 22 is horizontal at the bottom. During the rotation of the inner filter cartridge 22, the oil residue adheres to the inner wall, causing centrifugal separation of the grease. When the inner filter cartridge 22 stops, the oil residue at the top will be positioned further forward than the oil residue at the bottom. Under the influence of gravity, when the oil residue falls to the bottom, it will be further forward than its original bottom position. Therefore, in the continuous cycle, the oil residue is constantly... The oil residue at the bottom of the inner filter cylinder 22 will gradually move towards the discharge port 231. With the help of the rotation of the agitator 32, the oil residue at the bottom of the inner filter cylinder 22 can be moved towards the discharge port 231 during the rotation of the agitator 32 without stopping the machine, so as to maintain continuous production until it falls out of the discharge port 231. The filtered oil is then discharged from the oil outlet 211 on the ground of the outer cylinder 21 under the action of gravity. In this centrifuge, the oil residue that originally contained 50% oil can be pressed for oil, and up to 40% of the oil can be extracted from the oil residue.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A centrifuge for virgin oil residue, characterized in that: The system includes a frame and a filter. The filter includes an outer casing, an inner filter cartridge, a front sealing plate, a rear sealing plate, and a drive assembly. Both the outer casing and the inner filter cartridge are frustoconical structures. The lower end face of the outer casing is connected to the frame. The outer wall of the inner filter cartridge has several filter holes. The inner filter cartridge is nested inside the outer casing and does not contact it. The front end of the inner filter cartridge is connected to the front end of the outer casing via a front bearing, and the rear end of the inner filter cartridge is connected to the rear end of the outer casing via a rear bearing. The front sealing plate is detachably connected to the front end of the outer casing and abuts against the front bearing. The rear sealing plate is detachably connected to the rear end of the outer casing and abuts against the rear bearing. The drive assembly is mounted on the frame and drives the inner filter cartridge to rotate.

2. The virgin oil residue centrifuge according to claim 1, characterized in that: The outer casing has an inclined structure with a small front end and a large rear end. The horizontal plane where the center of the rear opening of the outer casing is located is higher than the horizontal plane where the center of the front opening of the outer casing is located. The tangent line connecting the lower end of the outer casing to the frame is parallel to the horizontal plane.

3. The virgin oil residue centrifuge according to claim 2, characterized in that: The front sealing plate is provided with a discharge port, the rear sealing plate is provided with a feed port, and the lower end face of the outer casing is provided with an oil outlet that communicates with the inner cavity of the outer casing.

4. The virgin oil residue centrifuge according to claim 3, characterized in that: The drive assembly includes a drive motor, a drive wheel, a drive belt, and a driven wheel. The drive motor is mounted on a fixed plate on the frame, and the output end of the drive motor is connected to the drive wheel. The driven wheel is mounted on the outer wall of the front end of the inner filter cartridge, and the drive belt is sleeved on the drive wheel and the driven wheel.

5. The virgin oil residue centrifuge according to claim 4, characterized in that: It also includes a stirring assembly, which includes a stirring motor and a stirrer. The stirring motor is located on the outer side wall of the front sealing plate. The output end of the stirring motor passes through the front sealing plate and extends into the inner cavity of the inner filter cartridge. One end of the stirrer is connected to the output end of the stirring motor, and the other end of the stirrer is rotatably connected to a rotating seat on the inner side wall of the rear sealing plate.

6. The virgin oil residue centrifuge according to claim 5, characterized in that: The agitator is in the shape of a spiral stirring blade and is horizontally positioned. The outer edge of the stirring blade of the agitator maintains a gap with the inner sidewall of the inner filter cylinder.

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