A white oil decoloring device

Abstract

The utility model relates to the technical field of white oil decoloring, disclose a white oil decoloring device, including the support frame, the support frame inside fixedly connected with the decoloring jar, the decoloring jar outer wall is provided with the feeding pipe, the decoloring jar top fixedly connected with the motor, the motor output fixedly connected with the transmission roll, the transmission roll bottom fixedly connected with the sector scraper, the transmission roll outer wall fixedly connected with the stirring rod, the stirring rod inside is provided with the mixing subassembly, the mixing subassembly includes the stirring roller and screw belt stirring paddle, the stirring roller outer wall fixedly connected in the stirring rod inside, the screw belt stirring paddle outer wall fixedly connected in the stirring rod inside. In the utility model, the adsorbent can more efficiently adsorb the pigment and other impurities in white oil through the motor driving transmission roll rotation, thereby reaches the effect that promotes white oil decoloring efficiency, solves the problem that the traditional device mixes unevenly and leads to incomplete decoloring, improves the effectiveness of the device.

Description

Technical Field

[0001] This utility model relates to the field of white oil decolorization technology, and in particular to a white oil decolorization device. Background Technology

[0002] In the plastics processing industry, white oil, as an important processing aid and lubricant, has a crucial impact on the appearance quality of final plastic products, such as transparency, gloss, and stability, due to its purity, especially its color index. Plastic-grade white oil is usually refined from mineral oil, but trace amounts of gum, polycyclic aromatic hydrocarbons, and colored substances inevitably remain during the production process. To meet the stringent requirements of near-colorless white oil for high-end plastic products, such as food packaging films and medical devices, efficient decolorization treatment is necessary. Adsorption decolorization has become the mainstream process for refining white oil in plastics processing due to its relatively simple operation, controllable cost, and significant effect. Its core lies in using adsorbents such as activated clay and activated carbon to selectively adsorb pigment impurities in the oil. Therefore, developing efficient and reliable decolorization equipment that ensures full contact and mixing between the adsorbent and white oil and is easy to maintain is of great significance for improving the quality of raw materials for plastics processing and ensuring the quality of downstream products.

[0003] Currently, white oil decolorization equipment in plastic processing generally adopts a structure of decolorization tank with stirring function combined with subsequent filtration unit. The decolorization tank, as the core reaction vessel, is usually equipped with a mechanical stirrer driven by an external motor. Common forms include paddle stirrers or propeller stirrers.

[0004] A significant problem with existing technologies is that uneven mixing leads to incomplete decolorization. Due to the limitations of traditional stirring devices in terms of structure and stirring method, dead zones or material stratification are easily formed in the decolorization tank. This makes it impossible to ensure that the adsorbent particles are evenly dispersed in the entire oil phase and have sufficient and lasting contact with the white oil molecules. This uneven mixing results in some areas of pigment impurities not being effectively adsorbed, leading to low decolorization efficiency. As a result, the color of the final product is difficult to stably meet the high standards required for plastic processing. Therefore, a white oil decolorization device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a white oil decolorization device, which aims to improve the problem of incomplete decolorization caused by uneven mixing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A white oil decolorization device includes a support frame, a decolorization tank fixedly connected inside the support frame, a feeding pipe provided on the outer wall of the decolorization tank, a motor fixedly connected to the top of the decolorization tank, a transmission roller fixedly connected to the output end of the motor, a fan-shaped scraper fixedly connected to the bottom of the transmission roller, a stirring rod fixedly connected to the outer wall of the transmission roller, and a mixing component provided inside the stirring rod.

[0008] The mixing assembly includes a stirring roller and a ribbon stirring paddle. The outer wall of the stirring roller is fixedly connected to the inside of the stirring rod, and the outer wall of the ribbon stirring paddle is fixedly connected to the inside of the stirring rod. A discharge pipe is fixedly connected to the bottom of the decolorization tank. A one-way valve is provided on the outer wall of the discharge pipe, and a filter assembly is provided at the bottom of the discharge pipe.

[0009] As a further description of the above technical solution:

[0010] The filter assembly includes a filter frame, the top of which is fixedly connected to the bottom of the feed pipe, and the bottom of which is fixedly connected to a conveying pipe.

[0011] As a further description of the above technical solution:

[0012] A sealing frame is slidably connected inside the filter frame, an activated carbon plate is disposed inside the sealing frame, and a filter screen is disposed on the top of the activated carbon plate.

[0013] As a further description of the above technical solution:

[0014] A hollow column is fixedly connected inside the filter frame, and a disassembly assembly is provided inside the hollow column.

[0015] As a further description of the above technical solution:

[0016] The disassembly assembly includes a retaining ball that is slidably connected inside the hollow column and engages with the sealing frame.

[0017] As a further description of the above technical solution:

[0018] A fixing plate is fixedly connected inside the hollow column, and a pressing column is slidably connected inside the fixing plate.

[0019] As a further description of the above technical solution:

[0020] A trapezoidal locking post is fixedly connected to one end of the pressing post, and a pressure plate is fixedly connected to the outer wall of the pressing post. The trapezoidal locking post is in contact with the locking ball.

[0021] As a further description of the above technical solution:

[0022] A spring is fitted on the outer wall of the pressing column. One end of the spring is fixedly connected to the side wall of the pressing plate, and the other end of the spring is fixedly connected to the side wall of the fixed plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, a motor drives a transmission roller to rotate, which in turn drives a fan-shaped scraper to clean the inner wall of the decolorization tank, preventing material from adhering and accumulating. At the same time, it drives a stirring rod to rotate. As the stirring rod rotates, the stirring roller and the ribbon stirring paddle inside the stirring rod disperse and stir at high speed, while the ribbon stirring paddle stirs axially. The two work together to ensure that the white oil and the adsorbent are fully in contact and mixed, thereby enabling the adsorbent to more efficiently adsorb pigments and other impurities in the white oil. This achieves the effect of improving the decolorization efficiency of white oil, solving the problem of incomplete decolorization caused by uneven mixing in traditional devices, and improving the effectiveness of the device.

[0025] 2. In this utility model, during the filtration process, the white oil mixture enters the filter frame through the feed pipe, where the activated carbon plate and filter screen both filter impurities. When it is necessary to replace the filter components, pressing the pressing column moves the trapezoidal locking column, which pushes the locking ball to slide inside the hollow column, causing it to disengage from the sealing frame. Under the action of the spring reset, the sealing frame can be easily pulled out to replace the activated carbon plate and filter screen, thus making the maintenance process of the filter components more convenient and efficient. This achieves the effect of quickly replacing the filter components, solving the problem of cumbersome disassembly of filter components in traditional devices, and improving the practicality and maintenance convenience of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a white oil decolorizing device proposed in this utility model;

[0027] Figure 2 This is a cross-sectional structural diagram of the decolorizing tank of a white oil decolorizing device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the filter frame structure of a white oil decolorization device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the activated carbon plate structure of a white oil decolorization device proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Support frame; 2. Decolorizing tank; 3. Feeding pipe; 4. Motor; 5. Drive roller; 6. Fan-shaped scraper; 7. Stirring rod; 8. Stirring roller; 9. Ribbon stirring paddle; 10. Discharge pipe; 11. One-way valve; 12. Filter frame; 13. Conveying pipe; 14. Sealing frame; 15. Activated carbon plate; 16. Filter screen; 17. Hollow column; 18. Fixed plate; 19. Pressing column; 20. Pressure plate; 21. Spring; 22. Trapezoidal locking column; 23. Locking ball. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-5 This utility model provides an embodiment of a white oil decolorization device, including a support frame 1 that provides structural support and stability for the entire device. A decolorization tank 2 is fixedly connected inside the support frame 1 as the main container for the white oil decolorization reaction. A feeding pipe 3 is provided on the outer wall of the decolorization tank 2 for injecting the white oil to be treated and the adsorbent into the decolorization tank 2. A motor 4 is fixedly connected to the top of the decolorization tank 2 to provide the power source for driving the stirring system. A transmission roller 5 is fixedly connected to the output end of the motor 4 to transmit the rotational power of the motor 4 to the stirring system. A fan-shaped scraper 6 is fixedly connected to the bottom of the transmission roller 5 to remove the material adhering to the inner wall of the decolorization tank 2 during rotation to prevent scaling. A stirring rod 7 is fixedly connected to the outer wall of the transmission roller 5 as the mounting carrier for the mixing component. A mixing component is provided inside the stirring rod 7 to achieve efficient mixing of white oil and adsorbent.

[0035] The mixing assembly includes a stirring roller 8 and a ribbon agitator 9. The outer wall of the stirring roller 8 is fixedly connected to the inside of the stirring rod 7. The high-speed rotation generates shear force to fully disperse the adsorbent. The outer wall of the ribbon agitator 9 is fixedly connected to the inside of the stirring rod 7 to generate axial flow, promoting the overall circulation and mixing of the materials. The bottom of the decolorizing tank 2 is fixedly connected to a discharge pipe 10 for discharging the decolorized mixture. The outer wall of the discharge pipe 10 is equipped with a one-way valve 11 to prevent material backflow and ensure unidirectional flow. The bottom of the discharge pipe 10 is equipped with a filter assembly to perform solid-liquid separation on the decolorized mixture, removing the adsorbent and impurities.

[0036] Reference Figures 1-5The filter assembly includes a filter frame 12, which serves as the outer shell and support structure of the filtration system. The top of the filter frame 12 is fixedly connected to the bottom of the feed pipe 10 to receive the mixed liquid from the decolorization tank 2. The bottom of the filter frame 12 is fixedly connected to a feed pipe 13 to transport the filtered white oil to the next process. A sealing frame 14 is slidably connected inside the filter frame 12 to detachably contain the filter medium. An activated carbon plate 15 is installed inside the sealing frame 14 to adsorb residual pigments and trace impurities. A filter screen 16 is installed on top of the activated carbon plate 15 to intercept larger particles of adsorbent and impurities. A hollow column 17 is fixedly connected inside the filter frame 12 to install and fix the disassembly assembly. The disassembly assembly inside the hollow column 17 enables the quick replacement of the filter medium. The disassembly assembly includes a locking ball 23 for locking the positioning element of the sealing frame 14. The locking ball 23 slides... Connected inside the hollow column 17, it moves radially within the hollow column 17. The locking ball 23 engages with the sealing frame 14 to fix the position of the sealing frame 14. A fixed plate 18 is fixedly connected inside the hollow column 17 as the mounting base for the disassembly assembly. A pressing column 19 is slidably connected inside the fixed plate 18 to transmit the pressing pressure of the operator. A trapezoidal locking column 22 is fixedly connected to one end of the pressing column 19 to push the locking ball 23 to release the lock. A pressure plate 20 is fixedly connected to the outer wall of the pressing column 19 to limit the compression stroke of the spring 21. The trapezoidal locking column 22 and the locking ball 23 are in contact and the inclined structure pushes the locking ball 23 to move. A spring 21 is sleeved on the outer wall of the pressing column 19 to provide a restoring elastic force. One end of the spring 21 is fixedly connected to the side wall of the pressure plate 20 to transmit the spring 21 force, and the other end of the spring 21 is fixedly connected to the side wall of the fixed plate 18 to provide the spring 21 reaction force.

[0037] Working principle: The mixing assembly includes a stirring roller 8 and a ribbon stirring paddle 9 fixed inside the stirring rod 7. The stirring roller 8 is located slightly above the stirring rod 7, and its outer wall is fixedly connected to the stirring rod 7. When the stirring rod 7 rotates, the stirring roller 8 rotates at high speed, radially dispersing and stirring the white oil and adsorbent, causing local materials to mix quickly. The ribbon stirring paddle 9 is spirally fixed to the lower outer wall of the stirring rod 7. When it rotates with the stirring rod 7, it generates axial convection, pushing the material down the inner wall of the decolorizing tank 2 and then surging upward from the bottom of the tank, forming a circulating flow. This combined motion of vertical convection and radial dispersion ensures that the white oil and adsorbent are fully contacted and mixed evenly in the decolorizing tank 2, compared to the traditional single stirring method. This allows the adsorbent to efficiently adsorb pigments and impurities in the white oil. When it is necessary to replace the filter screen 16 or activated carbon plate 15, the filter frame 1... 2. The internal disassembly components function. The hollow column 17 is fixed inside the inner wall of the filter frame 12. The retaining ball 23 engages with the slot on the top of the sealing frame 14 through the groove, thus fixing the sealing frame 14. When disassembling, press down on the pressing column 19. The trapezoidal retaining column 22 at one end moves with the pressing column 19. The inclined surface pushes the retaining ball 23 into the hollow column 17, releasing the engagement with the sealing frame 14. The pressure plate 20 on the outer wall of the pressing column 19 compresses the spring 21. When the retaining ball 23 is completely disengaged from the slot, the sealing frame 14 can be pulled out horizontally to replace the internal filter screen 16 and activated carbon plate 15. After releasing the pressing column 19, the spring 21 returns to its original position, pushing the pressure plate 20 and the pressing column 19 upward. The trapezoidal retaining column 22 moves the retaining ball 23 back to its original position and re-locks the sealing frame 14. The entire disassembly process does not require tools and is more convenient and faster than the traditional bolt fixing method.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A white oil decolorizing device, comprising a support frame (1), characterized in that: A decolorizing tank (2) is fixedly connected inside the support frame (1). A feeding pipe (3) is provided on the outer wall of the decolorizing tank (2). A motor (4) is fixedly connected to the top of the decolorizing tank (2). A transmission roller (5) is fixedly connected to the output end of the motor (4). A fan-shaped scraper (6) is fixedly connected to the bottom of the transmission roller (5). A stirring rod (7) is fixedly connected to the outer wall of the transmission roller (5). A mixing component is provided inside the stirring rod (7). The mixing assembly includes a stirring roller (8) and a ribbon stirring paddle (9). The outer wall of the stirring roller (8) is fixedly connected to the inside of the stirring rod (7). The outer wall of the ribbon stirring paddle (9) is fixedly connected to the inside of the stirring rod (7). A discharge pipe (10) is fixedly connected to the bottom of the decolorizing tank (2). A one-way valve (11) is provided on the outer wall of the discharge pipe (10). A filter assembly is provided at the bottom of the discharge pipe (10).

2. The white oil decolorizing device according to claim 1, characterized in that: The filter assembly includes a filter frame (12), the top of which is fixedly connected to the bottom of the feed pipe (10), and the bottom of which is fixedly connected to a feed pipe (13).

3. The white oil decolorization device according to claim 2, characterized in that: A sealing frame (14) is slidably connected inside the filter frame (12), an activated carbon plate (15) is provided inside the sealing frame (14), and a filter screen (16) is provided on the top of the activated carbon plate (15).

4. The white oil decolorizing device according to claim 3, characterized in that: A hollow column (17) is fixedly connected inside the filter frame (12), and a disassembly assembly is provided inside the hollow column (17).

5. The white oil decolorizing device according to claim 4, characterized in that: The disassembly assembly includes a retaining ball (23), which is slidably connected inside the hollow column (17) and engages with the sealing frame (14).

6. The white oil decolorizing device according to claim 5, characterized in that: The hollow column (17) is fixedly connected to a fixed plate (18), and the fixed plate (18) is slidably connected to a pressing column (19).

7. The white oil decolorizing device according to claim 6, characterized in that: One end of the pressing column (19) is fixedly connected to a trapezoidal locking column (22), and a pressure plate (20) is fixedly connected to the outer wall of the pressing column (19). The trapezoidal locking column (22) is in contact with the locking ball (23).

8. The white oil decolorizing device according to claim 7, characterized in that: A spring (21) is fitted on the outer wall of the pressing column (19). One end of the spring (21) is fixedly connected to the side wall of the pressing plate (20), and the other end of the spring (21) is fixedly connected to the side wall of the fixing plate (18).

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