Treatment device for solid-liquid separation of waste edible oil and fat

Abstract

The utility model belongs to the field of biodiesel refining technology discloses a kind of processing device for waste edible oil and fat solid-liquid separation, including cylinder and transmission shaft, and slit screen is coaxially arranged in cylinder. Transmission shaft is arranged in cylinder, and transmission shaft can rotate relative to cylinder, and spiral conveying part, spiral fixing assembly and liquid-removing plug cone are sequentially installed on transmission shaft, and wear-resistant raking assembly is detachably connected to the end of spiral fixing assembly away from transmission shaft, and part wear-resistant raking assembly is located in the accommodating space formed by slit screen. Since wear-resistant raking assembly is detachably connected to the end of spiral fixing assembly away from transmission shaft, when wear-resistant raking assembly is worn, it can be directly replaced without returning to factory for repair, ensuring the continuity of processing, i.

Description

Technical Field

[0001] This utility model relates to the field of biodiesel refining technology, and in particular to a treatment device for solid-liquid separation of waste edible oils. Background Technology

[0002] The main raw material for biodiesel refining is waste edible oil. Because this type of oil is at the early stage of the process, it often contains a certain amount of solid residue and other impurities. The content of these impurities is affected by the actual collection market and collection methods, and the impurity content varies significantly at different times. Therefore, in the waste edible oil treatment stage of a biodiesel project, it is necessary to perform solid-liquid separation on the collected waste edible oil to recover the oil and remove solid residue.

[0003] In the solid-liquid separation of waste edible oil, the market offers a variety of process equipment and treatment methods. Conventional treatment devices for waste edible oil solid-liquid separation can achieve basic solid-liquid separation, but their performance in terms of separation efficiency, service life, maintenance costs, ease of maintenance, and impurity and slag removal is not ideal. Currently, commonly used treatment devices utilize a high-speed rotating spindle, relying on the centrifugal force generated by the rotation to throw the liquid material (i.e., liquid oil) out of the material chamber. A drive plate is installed on the outer diameter of its spindle, primarily relying on this drive plate to agitate the material. After a period of accumulated operation, the outermost edge of the drive plate will wear down, resulting in an increased oil content in the separated solid residue and a corresponding decrease in the treatment capacity. In such cases, the on-site conditions generally cannot meet the repair requirements for the drive plate on the spindle, requiring the device to be returned to the factory for repair. This process is time-consuming and cannot guarantee the continuity of waste edible oil treatment.

[0004] Therefore, there is an urgent need for a treatment device for solid-liquid separation of waste edible oils to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a treatment device for solid-liquid separation of waste edible oils to solve the problem that existing treatment devices for solid-liquid separation of waste edible oils need to be returned to the factory for repair after wear, which cannot guarantee the continuity of waste edible oil treatment.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A treatment device for solid-liquid separation of waste cooking oil includes:

[0008] A cylindrical body, the cylindrical body being horizontally arranged, a slotted screen being coaxially arranged inside the cylindrical body, the outer side of the slotted screen being in contact with the inner side of the cylindrical body;

[0009] A drive shaft passes through the cylinder, with its two ends located outside the cylinder and capable of rotating relative to the cylinder. Inside the cylinder, a screw conveyor, a screw fixing assembly, and a liquid removal plug cone are sequentially installed on the drive shaft. A wear-resistant material feeding assembly is detachably connected to the end of the screw fixing assembly away from the drive shaft, and part of the wear-resistant material feeding assembly is located within the accommodating space formed by the slotted screen.

[0010] The cylinder is also provided with a feed channel, a liquid outlet channel and a slag outlet channel, all of which are connected to the inside of the cylinder. The feed channel is located above the screw conveyor, the liquid outlet channel is located below the slotted screen, and the slag outlet channel is located below the desliming plug cone.

[0011] Furthermore, the wear-resistant material feeding assembly includes multiple wear-resistant material feeding components, all of which are detachably connected to the end of the spiral fixing assembly away from the drive shaft.

[0012] Furthermore, the spiral fixing assembly includes a strip seat plate and multiple welded supports, all of which are located between the strip seat plate and the drive shaft for fixing the strip seat plate to the drive shaft. Multiple wear-resistant material feeding parts are detachably connected to the end of the strip seat plate away from the drive shaft.

[0013] Furthermore, the processing device for solid-liquid separation of waste edible oil also includes a plurality of fastening bolts. The end of the strip plate away from the drive shaft is provided with a plurality of first mounting holes spaced apart along its extension direction. A plurality of wear-resistant material feeding parts are provided with second mounting holes. The plurality of fastening bolts are provided in a one-to-one correspondence with the plurality of first mounting holes and in a one-to-one correspondence with the plurality of second mounting holes. The fastening bolts can be inserted and fixed in the first mounting holes and the second mounting holes.

[0014] Furthermore, the drive shaft is welded to multiple welding supports, and the strip plate is welded to multiple welding supports.

[0015] Furthermore, multiple spiral fixing components and multiple wear-resistant material-pushing components are provided, with each of the multiple spiral fixing components and the multiple wear-resistant material-pushing components corresponding to one another.

[0016] Furthermore, the dehydration plug cone includes a plug cone portion, a connecting portion, and a flat portion connected in sequence. The plug cone portion, the connecting portion, and the flat portion are all on the drive shaft. The dimension of the end of the plug cone portion away from the connecting portion is smaller than the dimension of the end of the plug cone portion away from the spiral fixing assembly.

[0017] Furthermore, both the outer surface of the plug cone and the outer surface of the connecting portion are provided with a wear-resistant layer.

[0018] Furthermore, in the length direction of the drive shaft, the size of the planar portion is larger than the size of the connecting portion.

[0019] Furthermore, the treatment device for solid-liquid separation of waste edible oil also includes a drive component, a bearing housing, and a mounting frame. The drive component is connected to one end of the transmission shaft for driving the transmission shaft to rotate. The other end of the transmission shaft passes through the bearing housing. Both the drive component and the bearing housing are located on the mounting frame.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a treatment device for solid-liquid separation of waste edible oil, including a cylinder and a drive shaft. The cylinder is horizontally arranged, and a slotted screen is coaxially arranged inside the cylinder, with the outer surface of the slotted screen fitting against the inner surface of the cylinder. The drive shaft passes through the cylinder, with its two ends located outside the cylinder, and the drive shaft can rotate relative to the cylinder. Inside the cylinder, a screw conveyor, a screw fixing assembly, and a desliming plug cone are sequentially installed on the drive shaft. A wear-resistant material-feeding assembly is detachably connected to the end of the screw fixing assembly away from the drive shaft, and part of the wear-resistant material-feeding assembly is located within the receiving space formed by the slotted screen. The cylinder is also provided with a feed channel, a liquid outlet channel, and a slag outlet channel, all of which are connected to the inside of the cylinder. The feed channel is located above the screw conveyor, the liquid outlet channel is located below the slotted screen, and the slag outlet channel is located below the desliming plug cone. By sequentially installing a screw conveyor, a screw fixing assembly, and a dehydration plug cone on the drive shaft, with the feed channel located above the screw conveyor, the waste edible oil is easily fed into the system. The waste edible oil enters the cylinder through the feed channel and is conveyed by the screw conveyor to the location of the screw fixing assembly and the wear-resistant material-pushing assembly. Inside the cylinder, the waste edible oil is agitated by the wear-resistant material-pushing assembly. Simultaneously, due to inertia, the liquid in the waste edible oil is quickly thrown out through the gaps of the slotted screen and flows out through the liquid outlet channel. The solids in the waste edible oil move towards the dehydration plug cone and are discharged through the slag outlet channel during continuous movement, thus completing the solid-liquid separation of the waste edible oil. Since the wear-resistant material-pushing assembly is detachably connected to the end of the screw fixing assembly furthest from the drive shaft, it can be directly replaced when worn, eliminating the need for factory repair and ensuring continuous processing. This guarantees the continuous processing of waste edible oil and the processing efficiency of the system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the treatment device for solid-liquid separation of waste edible oil provided in an embodiment of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the processing device for solid-liquid separation of waste edible oils provided in an embodiment of this utility model.

[0024] In the picture:

[0025] 1. Drive shaft; 2. Welded support; 3. Strip plate; 4. Wear-resistant material feeding parts; 5. Fastening bolts; 6. Dehydration plug cone; 7. Slotted screen; 8. Feed channel; 9. Drive component; 10. Slag discharge channel; 11. Liquid discharge channel. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] This embodiment provides a treatment device for solid-liquid separation of waste edible oil. When the wear-resistant feeding component is worn, it can be directly replaced without returning to the factory for repair, thus ensuring the continuity of processing. This ensures the continuous processing of waste edible oil by the treatment device and guarantees the processing efficiency of the device.

[0031] For example, such as Figures 1-2As shown, the treatment device for solid-liquid separation of waste edible oil includes a cylinder and a drive shaft 1. The cylinder is horizontally arranged, and a slotted screen 7 is coaxially arranged inside the cylinder, with the outer side of the slotted screen 7 fitting against the inner side of the cylinder. The drive shaft 1 passes through the cylinder, with its two ends located outside the cylinder, and the drive shaft 1 can rotate relative to the cylinder. Inside the cylinder, a screw conveyor, a screw fixing assembly, and a desliming plug cone 6 are sequentially installed on the drive shaft 1. A wear-resistant material-feeding assembly is detachably connected to the end of the screw fixing assembly away from the drive shaft 1, and part of the wear-resistant material-feeding assembly is located within the receiving space formed by the slotted screen 7. The cylinder is also provided with a feed channel 8, a liquid outlet channel 11, and a slag outlet channel 10, all of which are connected to the inside of the cylinder. The feed channel 8 is located above the screw conveyor, the liquid outlet channel 11 is located below the slotted screen 7, and the slag outlet channel 10 is located below the desliming plug cone 6. By sequentially installing a screw conveyor, a screw fixing assembly, and a dehydration plug cone 6 on the drive shaft 1, and with the feed channel 8 located above the screw conveyor, it is convenient to feed the waste edible oil to be processed. The waste edible oil enters the cylinder through the feed channel 8 and is conveyed by the screw conveyor to the location of the screw fixing assembly and the wear-resistant material pushing assembly. Inside the cylinder, the waste edible oil is pushed by the wear-resistant material pushing assembly. At the same time, due to inertia, the liquid in the waste edible oil is quickly thrown out from the gaps of the slotted screen 7 and flows out from the liquid outlet channel 11. The solid residue in the waste edible oil moves toward the dehydration plug cone 6 and is discharged from the slag outlet channel 10 during the continuous movement, thus completing the solid-liquid separation of the waste edible oil. Since the wear-resistant material feeding component is detachably connected to the end of the spiral fixing component away from the drive shaft 1, when the wear-resistant material feeding component is worn, it can be directly replaced without returning to the factory for repair, which can ensure the continuity of processing, that is, ensure the continuity of the processing device for solid-liquid separation of waste edible oil in processing waste edible oil, and ensure the processing efficiency of the processing device for solid-liquid separation of waste edible oil.

[0032] Furthermore, multiple spiral fixing components and multiple wear-resistant material-pushing components are provided, with each spiral fixing component corresponding to one of the multiple wear-resistant material-pushing components. Specifically, the multiple spiral fixing components are all arc-shaped and spaced apart. It can be understood that by providing multiple spiral fixing components and multiple wear-resistant material-pushing components, the waste edible oil can be easily agitated, improving the solid-liquid separation effect of the waste edible oil. Moreover, the arc-shaped nature of the multiple spiral fixing components, compared to a straight-line design, further enhances the processing efficiency of the waste edible oil solid-liquid separation treatment device.

[0033] Furthermore, such as Figure 2As shown, the wear-resistant material-pushing assembly includes multiple wear-resistant material-pushing parts 4, each of which is detachably connected to the end of the spiral fixing assembly away from the drive shaft 1. It can be understood that by providing multiple wear-resistant material-pushing parts 4, each detachably connected to the end of the spiral fixing assembly away from the drive shaft 1, when some wear-resistant parts wear, they can be replaced individually without replacing all of the wear-resistant material-pushing parts 4, making operation convenient and economical.

[0034] Furthermore, such as Figure 2 As shown, the spiral fixing assembly includes a strip base plate 3 and multiple welded supports 2. The welded supports 2 are all located between the strip base plate 3 and the drive shaft 1, used to fix the strip base plate 3 to the drive shaft 1. Multiple wear-resistant material-pulling components 4 are detachably connected to the end of the strip base plate 3 away from the drive shaft 1. It can be understood that by setting the strip base plate 3 and multiple welded supports 2, with the multiple welded supports 2 all located between the strip base plate 3 and the drive shaft 1, the strip base plate 3 is stably fixed. The strip base plate 3 provides an installation position for the multiple wear-resistant material-pulling components 4, which are detachably connected to the end of the strip base plate 3 away from the drive shaft 1, facilitating the installation and removal of the wear-resistant material-pulling components 4.

[0035] In this embodiment, the strip seat plate 3 is arc-shaped and can be an integrally formed arc-shaped plate structure, so that the multiple wear-resistant material feeding parts 4 installed on the strip seat plate 3 can also form an arc-shaped structure, which can further improve the processing efficiency of the treatment device for solid-liquid separation of waste edible oil.

[0036] Furthermore, multiple welded support brackets 2 are welded to the drive shaft 1, and the strip plate 3 is welded to the multiple welded support brackets 2 to improve the stability of the connection between the strip plate 3 and the multiple welded support brackets 2 and the drive shaft 1, thereby indirectly improving the stability of the wear-resistant material feeding component 4 and ensuring the stability of the treatment device used for solid-liquid separation of waste edible oil. Of course, the strip plate 3 and the multiple welded support brackets 2 can also be fixed by intermittent welding to further improve its stability.

[0037] In this embodiment, the wear-resistant scraper 4 can be a cemented carbide-welded tungsten carbide component, and its size can be a commonly used specification, making it readily available on the market and easy to replace. Of course, in other embodiments, the material and specifications of the wear-resistant scraper 4 can be determined according to actual usage requirements, as long as they meet the actual usage needs.

[0038] Furthermore, the treatment device for solid-liquid separation of waste edible oil also includes multiple fastening bolts 5. Multiple first mounting holes are spaced apart along the extension direction of the end of the strip plate 3 away from the drive shaft 1. Multiple wear-resistant material feeders 4 are each provided with a second mounting hole. The multiple fastening bolts 5 are arranged one-to-one with the multiple first mounting holes and one-to-one with the multiple second mounting holes. The fastening bolts 5 can pass through and be fixed in the corresponding first and second mounting holes to fix the wear-resistant material feeders 4 onto the strip plate 3. It can be understood that by providing multiple fastening bolts 5, multiple first mounting holes, and multiple second mounting holes, the detachable connection of the multiple wear-resistant material feeders 4 is facilitated, while ensuring the connection stability of the multiple wear-resistant material feeders 4. In this embodiment, each wear-resistant material feeder 4 is provided with two second mounting holes, which can further improve the connection stability of the wear-resistant material feeders 4.

[0039] In this embodiment, the fastening bolt 5 can be an existing bolt, and the first mounting hole and the second fixing hole can be threaded holes, with the fastening bolt 5 threadedly engaging with the first mounting hole and the second fixing hole. The specific specifications of the fastening bolt 5, the first mounting hole, and the second fixing hole can be determined according to actual usage requirements, and this embodiment does not impose specific limitations.

[0040] For example, the dehydration plug cone 6 includes a plug cone portion, a connecting portion, and a planar portion connected in sequence. The plug cone portion, connecting portion, and planar portion are all fitted onto the drive shaft 1. The dimension of the end of the plug cone portion away from the connecting portion is smaller than the dimension of the end of the plug cone portion away from the spiral fixing assembly. It is understood that by setting the dimension of the end of the plug cone portion away from the connecting portion to be smaller than the dimension of the end of the plug cone portion away from the spiral fixing assembly, it is easier for solid residue to form a plug that matches the shape of the plug cone portion between the plug cone portion and the connecting portion and the inner surface of the cylinder. That is, solid residue exists between the plug cone portion and the inner surface of the cylinder, and between the connecting portion and the inner surface of the cylinder, forming a plug. The plug acts against the waste edible oil inside the cylinder to provide a certain resistance to the discharge of solid residue, further improving the solid-liquid separation effect of the waste edible oil.

[0041] Furthermore, wear-resistant layers are provided on the outer surfaces of both the plug cone and the connecting portion. It is understood that when using this processing device for solid-liquid separation of waste edible oils, the plug cone and connecting portion are in contact with the solid residue for a long time, making them prone to wear. By providing wear-resistant layers on the outer surfaces of both the plug cone and the connecting portion, the service life of the dehydration plug cone 6 is improved, resulting in higher economic efficiency. In this embodiment, the dehydration plug cone 6 is detachably mounted on the drive shaft 1 for easy replacement after wear.

[0042] Furthermore, along the length of the drive shaft 1, the size of the planar portion is larger than the size of the connecting portion; specifically, the planar portion abuts against the inner wall of the cylinder. It is understood that by setting the size of the planar portion to be larger than the size of the connecting portion, it is easier to abut the planar portion against the inner wall of the cylinder, preventing solid slag from moving between the planar portion and the inner wall of the cylinder, thus avoiding problems such as difficulty in cleaning.

[0043] In this embodiment, to facilitate the movement of the drive shaft 1, the processing device for solid-liquid separation of waste edible oil also includes a drive component 9, a bearing housing, and a mounting frame. The drive component 9 is connected to one end of the drive shaft 1 to drive the drive shaft 1 to rotate. The other end of the drive shaft 1 passes through the bearing housing. Both the drive component 9 and the bearing housing are located on the mounting frame. The mounting frame facilitates raising the height of the cylinder and allows for easier material discharge. Simultaneously, the drive component 9 drives the drive shaft 1 to rotate, and the bearing housing improves the smoothness of the drive shaft 1's rotation. In this embodiment, the drive component 9 is a motor; the specific type of motor can be determined according to actual usage requirements.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A treatment device for solid-liquid separation of waste edible oil, characterized in that, include: A cylindrical body, the cylindrical body is horizontally arranged, and a slotted screen (7) is coaxially arranged inside the cylindrical body, the outer side of the slotted screen (7) is in contact with the inner side of the cylindrical body; A drive shaft (1) is inserted through the cylinder, with its two ends located outside the cylinder. The drive shaft (1) is rotatable relative to the cylinder. Inside the cylinder, a spiral conveyor, a spiral fixing assembly, and a liquid removal plug cone (6) are sequentially installed on the drive shaft (1). The end of the spiral fixing assembly away from the drive shaft (1) is detachably connected to a wear-resistant material feeding assembly. Part of the wear-resistant material feeding assembly is located within the accommodating space formed by the slotted screen (7). The cylinder is also provided with a feed channel (8), a liquid outlet channel (11) and a slag outlet channel (10) that are all connected to the inside of the cylinder. The feed channel (8) is located above the screw conveyor, the liquid outlet channel (11) is located below the slotted screen (7), and the slag outlet channel (10) is located below the descaling plug cone (6).

2. The treatment device for solid-liquid separation of waste edible oils according to claim 1, characterized in that, The wear-resistant material feeding assembly includes multiple wear-resistant material feeding parts (4), and each of the multiple wear-resistant material feeding parts (4) can be detachably connected to the end of the spiral fixing assembly away from the drive shaft (1).

3. The treatment device for solid-liquid separation of waste edible oils according to claim 2, characterized in that, The spiral fixing assembly includes a strip seat plate (3) and multiple welded supports (2). The multiple welded supports (2) are located between the strip seat plate (3) and the drive shaft (1) for fixing the strip seat plate (3) to the drive shaft (1). The multiple wear-resistant material feeding parts (4) are detachably connected to one end of the strip seat plate (3) away from the drive shaft (1).

4. The treatment device for solid-liquid separation of waste edible oils according to claim 3, characterized in that, The treatment device for solid-liquid separation of waste edible oil also includes a plurality of fastening bolts (5). The end of the strip plate (3) away from the drive shaft (1) is provided with a plurality of first mounting holes at intervals along its extension direction. A plurality of wear-resistant material feeding parts (4) are provided with second mounting holes. A plurality of fastening bolts (5) are provided in a one-to-one correspondence with a plurality of first mounting holes and a one-to-one correspondence with a plurality of second mounting holes. The fastening bolts (5) can be inserted and fixed in the first mounting holes and the second mounting holes.

5. The treatment device for solid-liquid separation of waste edible oils according to claim 3, characterized in that, The drive shaft (1) is welded to a plurality of the welding seats (2), and the strip plate (3) is welded to a plurality of the welding seats (2).

6. The treatment device for solid-liquid separation of waste edible oils according to claim 1, characterized in that, Multiple spiral fixing components and wear-resistant material feeding components are provided, and they are arranged in a one-to-one correspondence.

7. The treatment device for solid-liquid separation of waste edible oils according to claim 1, characterized in that, The dehydration plug cone (6) includes a plug cone portion, a connecting portion, and a flat portion connected in sequence. The plug cone portion, the connecting portion, and the flat portion are all on the drive shaft (1). The size of the end of the plug cone portion away from the connecting portion is smaller than the size of the end of the plug cone portion away from the spiral fixing assembly.

8. The treatment device for solid-liquid separation of waste edible oils according to claim 7, characterized in that, Both the outer surface of the plug cone and the outer surface of the connecting part are provided with a wear-resistant layer.

9. The treatment device for solid-liquid separation of waste edible oils according to claim 7, characterized in that, Along the length of the drive shaft (1), the size of the planar portion is larger than the size of the connecting portion.

10. The treatment apparatus for solid-liquid separation of waste edible oils according to any one of claims 1-9, characterized in that, The treatment device for solid-liquid separation of waste edible oil also includes a drive component (9), a bearing seat and a mounting frame. The drive component (9) is connected to one end of the transmission shaft (1) for driving the transmission shaft (1) to rotate. The other end of the transmission shaft (1) passes through the bearing seat. The drive component (9) and the bearing seat are both located on the mounting frame.

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