White oil refining production system

Abstract

A white oil refining production system includes a white oil refining device, a white oil blending device, and a white oil storage tank arranged sequentially. The white oil refining device includes a refining tank, a combined mixing mechanism located before the refining tank, and a bag filter located after the refining tank. The white oil blending device includes a blending tank, and the white oil storage tank includes a storage tank. The advantages of this invention are: the combined mixing mechanism located before the refining tank, through a turbine dynamic pipeline mixer and an SK-type static mixer connected in sequence, improves the mass transfer efficiency of white oil and white clay, effectively improving subsequent refining efficiency. The blending tank achieves uniform mixing, improving the quality stability of the white oil product. The stirring method and parameters can be flexibly adjusted to meet diverse blending needs. The storage tank facilitates the bottom drainage of water, avoiding impact on the quality of the white oil product. It significantly reduces the difficulty of subsequent maintenance and cleaning of the white oil storage tank.

Description

Technical Field

[0001] This utility model relates to the field of white oil processing technology, specifically to a white oil refining production system. Background Technology

[0002] Existing white oil refining tanks often add white oil and bleaching clay separately, which may result in insufficient mass transfer efficiency. During the white oil refining process, the mass transfer effect of the mixture of bleaching clay and white oil affects the refining efficiency. In some traditional white oil refining tanks, the stirring device may not be able to achieve an ideal mixing state between the bleaching clay and white oil, causing the bleaching clay to not fully perform its function of adsorbing impurities, and some white oil to fail to effectively contact the bleaching clay, thus reducing the refining effect.

[0003] Most existing white oil blending tanks use a single type of agitator, such as a standard paddle agitator, which can only generate a unidirectional flow of agitation. This results in insufficient mixing of the white oil within the tank and the presence of dead zones. This is particularly problematic for high-viscosity white oils or blending processes with multiple added ingredients, making it difficult to achieve uniform mixing and affecting the quality stability of the white oil product. When the white oil blending process changes, such as blending white oils of different viscosities or proportions, existing agitation systems struggle to flexibly adjust the agitation methods and parameters. The fixed structure of the agitator and the single speed setting cannot meet diverse blending needs, limiting the application range and production flexibility of the blending tanks.

[0004] Current white oil storage tanks often fail to consider the issue of water contamination during construction. Because white oil inevitably comes into partial contact with the external environment during transportation or storage, it inevitably absorbs a small amount of water, generally below 0.5%. This can lead to a small amount of sediment settling at the bottom of the storage tank during discharge, thus affecting the quality of some finished white oil products. Existing white oil storage tanks are often tall, vertical tanks, which increases the difficulty of maintenance and cleaning, consuming significant manpower and resources. Utility Model Content

[0005] The purpose of this invention is to provide a white oil refining production system to address the aforementioned deficiencies.

[0006] A white oil refining production system includes a white oil refining device, a white oil blending device, and a white oil storage tank arranged sequentially. The white oil refining device includes a refining tank body, a combined mixing mechanism disposed before the refining tank body, and a bag filter disposed after the refining tank body. The white oil blending device includes a blending tank body, and the white oil storage tank includes a storage tank body.

[0007] The combined mixing mechanism includes a turbine dynamic pipeline mixer and an SK-type static mixer, which are installed on the top of the refining tank and connected in sequence. The two inlet ends of the turbine dynamic pipeline mixer are respectively connected to the white oil conveying pipe and the white clay inlet pipe. The outlet end of the turbine dynamic pipeline mixer is connected to the inlet end of the SK-type static mixer. The outlet end of the SK-type static mixer is connected to the inlet of the refining tank through a right-angle bend. A mixing motor is installed at the center of the top of the refining tank. The output shaft of the mixing motor is connected to a mixing shaft extending into the refining tank. Multiple sets of anchor-type stirring paddles are evenly arranged on the mixing shaft. The bottom of the refining tank has a conical structure. A white oil discharge port with a filter screen and a valve is provided at the bottom of the refining tank. The white oil discharge port is connected to the inlet of the bag filter through a white oil discharge pipe.

[0008] The top of the blending tank is provided with an auxiliary material inlet and a white oil refining material inlet connected to the outlet of the bag filter via a conveying pipe and a delivery pump. The bottom of the blending tank has a conical structure with a blending material outlet at the lowest point. The top of the blending tank is also provided with a breather valve A for balancing the pressure inside the tank. The flange of the outlet pipe of breather valve A is connected to the flange of flame arrester B. It also includes a stirring and blending mechanism installed inside the blending tank. The stirring and blending mechanism includes a central shaft stirring paddle assembly and a side stirring paddle assembly. The central shaft stirring paddle assembly includes a blending motor installed at the center of the top of the blending tank, a stirring shaft connected to the output shaft of the blending motor and extending into the blending tank, and an upper horizontal stirring rod, a middle inclined stirring rod, and a lower anchor stirring rod installed on the stirring shaft. The side stirring paddle assembly includes two sets of side-entry stirrers symmetrically arranged on the side wall of the blending tank. The rotating shaft of the side-entry stirrer extends into the interior of the blending tank and has a propeller blade at the top.

[0009] The storage tank is a horizontal tank. The top of the tank is provided with a manhole and a white oil inlet connected to the blending material outlet through a finished product feeding pipe and a liquid pump. The tank body includes an integrally formed upper cylindrical part, a lower conical bucket-shaped part, and a bottom hollow semi-ellipsoidal part. The volume of the bottom hollow semi-ellipsoidal part is 0.5% of the volume of the tank body.

[0010] The storage tank body is provided with a storage tank support frame below the tank body. The storage tank support frame includes a top rectangular frame fixed to the upper cylindrical part and a set of support legs symmetrically arranged on both sides thereon.

[0011] The lowest point of the hollow semi-ellipsoidal part at the bottom is provided with a white oil discharge pipe. From top to bottom, the white oil discharge pipe is provided with a butterfly valve and an electric regulating valve. The white oil discharge pipe between the butterfly valve and the electric regulating valve is also provided with a downward-sloping drain pipe. From top to bottom, the drain pipe is provided with a ball valve and a needle valve.

[0012] Preferably, the top of the refined tank is also provided with a breather valve B for balancing the pressure inside the tank.

[0013] Preferably, the number of multiple sets of anchor-type mixing paddles is not less than four sets, and each set of anchor-type mixing paddles includes four upward-sloping mixing rods evenly arranged along the circumference of the mixing shaft, with the mixing rods forming an angle of 60° with the mixing shaft.

[0014] Preferably, the bottom of the refining tank and the side of the white oil discharge port are provided with a white clay intake port.

[0015] Preferably, the filter screen at the white oil discharge port is a high-strength stainless steel filter screen used to prevent white clay particles from flowing out.

[0016] Preferably, the side wall of the refined tank is also provided with a heating jacket and a heat insulation layer.

[0017] Preferably, there are four upper horizontal stirring rods and four middle inclined stirring rods, which are evenly distributed around the stirring shaft. The middle inclined stirring rods are inclined upwards or downwards and have an angle of 60-70° with the stirring shaft. There are two pairs of lower anchor stirring rods, which are perpendicular to each other.

[0018] Preferably, each group of side-entry agitators has no fewer than two, and the propulsion blades do not come into contact with the central shaft agitator assembly.

[0019] Preferably, a set of support legs includes four support columns and a rectangular connecting frame disposed in the middle, with the tops of the four support columns fixedly connected to the upper cylindrical part.

[0020] Preferably, one or more grounding wires with good conductivity are provided between the refining tank, the blending tank, and the storage tank and the ground.

[0021] The advantages of this invention are: a combined mixing mechanism is installed before the refining tank, which, through a turbine dynamic pipeline mixer and an SK-type static mixer connected in sequence, improves the mass transfer efficiency of white oil and white clay, effectively increasing subsequent refining efficiency. The blending tank achieves uniform mixing, improving the quality stability of the white oil product. The stirring method and parameters can be flexibly adjusted to meet diverse blending needs. The tank body facilitates the bottom drainage of water, avoiding impact on the quality of the white oil product. It significantly reduces the difficulty of subsequent maintenance and cleaning of the white oil finished product storage tank. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure of this utility model.

[0023] Figure 2 This is a schematic diagram of a white oil refining unit.

[0024] Figure 3 This is a schematic diagram of the anchor-type agitator.

[0025] Figure 4 This is a schematic diagram of a white oil blending device.

[0026] Figure 5 This is a schematic diagram of the upper horizontal stirring rod.

[0027] Figure 6 This is a schematic diagram of a white oil storage tank.

[0028] Figure 7 This is a schematic diagram of the structure of the white oil discharge pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, 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, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0034] As shown in the attached figure, a white oil refining production system includes a white oil refining device 200, a white oil blending device 201, and a white oil storage tank 202 arranged sequentially. The white oil refining device 200 includes a refining tank body 1, a combined mixing mechanism disposed before the refining tank body 1, and a bag filter 2 disposed after the refining tank body 1. The white oil blending device 201 includes a blending tank body 30, and the white oil storage tank 202 includes a storage tank body 100.

[0035] The combined mixing mechanism includes a turbine dynamic pipeline mixer 3 and an SK-type static mixer 4, which are connected in sequence at the top of the refining tank 1. The two inlet ends of the turbine dynamic pipeline mixer 3 are connected to the white oil conveying pipe and the white clay inlet pipe, respectively. The outlet end of the turbine dynamic pipeline mixer 3 is connected to the inlet end of the SK-type static mixer 4. The outlet end of the SK-type static mixer 4 is connected to the inlet 5 of the refining tank 1 through a right-angle bend 6. A mixing motor 8 is provided at the center of the top of the refining tank 1. The output shaft of the mixing motor 8 is connected to a mixing shaft 9 that extends into the refining tank 1. Multiple sets of anchor-type stirring paddles 10 are evenly arranged on the mixing shaft 9. The bottom of the refining tank 1 has a conical structure. A white oil discharge port 11 with a filter screen and a valve is provided at the bottom of the refining tank 1. The white oil discharge port 11 is connected to the inlet of the bag filter 2 through a white oil discharge pipe 12. The filter bag is regularly monitored, cleaned, or replaced to ensure the filtration effect and flow rate.

[0036] The top of the blending tank 30 is provided with an auxiliary material inlet 32 ​​and a white oil refining material inlet 31 connected to the outlet of the bag filter 2 via a conveying pipe and a delivery pump. The bottom of the blending tank 30 has a conical structure and a blending material outlet 33 at the lowest point. The top of the blending tank 30 is also provided with a breather valve A40 for balancing the pressure inside the tank. The flange of the outlet pipe of the breather valve A40 is connected to the flange of the flame arrester B41. It also includes a stirring and blending mechanism installed inside the blending tank 30. The stirring and blending mechanism includes a central shaft stirring paddle assembly and a side stirring paddle assembly. The central shaft stirring paddle assembly includes a blending motor 34 located at the center of the top of the blending tank 30 and an output shaft of the blending motor 34. The mixing tank 30 is connected to and extends into the mixing tank 35, and is equipped with an upper horizontal stirring rod 36, a middle inclined stirring rod 37, and a lower anchor stirring rod 38. The mixing shaft is vertically arranged at the center of the tank, and multiple layers of different types of stirring blades are installed on the shaft. The uppermost layer is a flat blade stirring blade (upper horizontal stirring rod), which is used to initially disperse the white oil and auxiliary raw materials that have just entered the tank. The middle layer is an inclined blade stirring blade (middle inclined stirring rod), which generates axial and radial mixing flow, enhancing the vertical circulation and lateral diffusion of white oil in the tank. The bottommost layer is an anchor stirring blade (lower anchor stirring rod), which is close to the bottom of the tank to prevent white oil from depositing at the bottom of the tank and ensure that the white oil in all parts of the tank is fully stirred.

[0037] The side-entry agitator assembly includes two sets of side-entry agitators 39 symmetrically arranged on the side wall of the mixing tank 30. The rotation shaft of each side-entry agitator 39 extends into the mixing tank 30, and its top is equipped with a propeller blade 42. Multiple side-entry agitators with propeller blades are installed on the side wall of the tank, and their rotation direction coordinates with the central shaft agitator assembly to form a complex three-dimensional mixing flow field, further improving mixing efficiency and mixing uniformity. The side-entry agitators are driven by independent motors, and their rotation speed can be adjusted according to the mixing process requirements.

[0038] The storage tank 100 is a horizontal tank. The top of the storage tank 100 is provided with a manhole 102 and a white oil inlet 101 connected to the blending material outlet 33 through a finished product feeding pipe and a liquid pump. The storage tank 100 includes an integrally formed upper cylindrical part 103, a lower conical bucket-shaped part 104, and a bottom hollow semi-ellipsoidal part 105. The volume of the bottom hollow semi-ellipsoidal part 105 is 0.5% of the volume of the storage tank 100. During the storage process, the white oil will come into contact with the external environment to a certain extent and will inevitably absorb a small amount of water, generally less than 0.5%. The bottom hollow semi-ellipsoidal part 105 is used to collect the sediment water.

[0039] The storage tank body 100 is provided with a storage tank support frame below it. The storage tank support frame includes a top rectangular frame 111 fixedly connected to the upper cylindrical part 103 and a set of support legs 112 symmetrically arranged on both sides thereon.

[0040] The lowest point of the hollow semi-ellipsoidal section 105 is provided with a white oil discharge pipe 113. From top to bottom, the white oil discharge pipe 113 is equipped with a butterfly valve 114 and an electric regulating valve 116. The butterfly valve is suitable for large-diameter white oil unloading pipelines, such as the connection between storage tanks and large oil pipelines. When unloading white oil, the pipeline diameter is large; using a butterfly valve can meet flow requirements while reducing valve cost and installation difficulty. The electric regulating valve precisely controls the valve opening through an electric actuator, thereby achieving precise regulation of the white oil unloading flow rate. Between the butterfly valve 114 and the electric regulating valve 116, the white oil discharge pipe 113 is equipped with a downward-sloping drain pipe 117. From top to bottom, the drain pipe 117 is equipped with a ball valve 118 and a needle valve 119. The ball valve is installed on the drain pipe near the storage tank. Under normal circumstances, the ball valve is closed to prevent white oil leakage; it is opened when drainage is needed. Install a needle valve after the ball valve to more accurately control the drainage speed and flow rate, preventing excessively fast drainage from causing white oil to be carried out, resulting in waste and pollution.

[0041] In another technical solution, the top of the refined tank 1 is also provided with a breather valve B7 for balancing the pressure inside the tank to prevent the pressure from being too high or too low.

[0042] In another technical solution, the number of multiple sets of anchor-type stirring paddles 10 is no less than four sets to ensure the stirring effect and improve the mass transfer efficiency.

[0043] In another technical solution, each set of anchor-type mixing paddles 10 includes four inclined upward mixing rods 13 evenly arranged around the mixing shaft 9, with the mixing rods 13 having an angle of 60° with the mixing shaft 9.

[0044] In another technical solution, a clay intake port 14 is provided at the bottom of the refining tank 1 and on one side of the white oil discharge port 11. The height of the side intake port is generally about 0.5-1m from the bottom of the tank, and the angle is usually 30-60° with the tangent of the tank body, so that the clay can be easily extracted.

[0045] In another technical solution, the filter screen at the white oil discharge port 11 is a high-strength stainless steel filter screen to prevent the outflow of bleaching clay particles. This filters solid impurities in the white oil, such as bleaching clay particles and rust, preventing these impurities from flowing out with the white oil and affecting its quality and subsequent use. The filter screen also provides preliminary filtration assurance for subsequent fine filtration processes, helping to improve the efficiency and stability of the entire filtration system.

[0046] In another technical solution, the side wall of the refined tank 1 is also provided with a heating jacket 15 and a heat insulation layer 16. The heat insulation layer effectively reduces heat loss and lowers energy consumption.

[0047] In another technical solution, one or more grounding wires with good conductivity are provided between the refining tank 1, the blending tank 30 and the storage tank 100 and the ground.

[0048] In another technical solution, there are four upper horizontal stirring rods 36 and four middle inclined stirring rods 37, evenly distributed around the circumference of the stirring shaft 35. The middle inclined stirring rods 37 are inclined upwards or downwards at an angle of 60-70° to the stirring shaft 35. The four stirring rods evenly distributed around the circumference make the mixing of white oil and auxiliary additives more uniform.

[0049] In another technical solution, the number of the lower anchor-type stirring rods 38 is two pairs and they are arranged perpendicular to each other, so as to make the white oil and auxiliary additives deposited at the bottom of the tank more thoroughly mixed.

[0050] In another technical solution, the number of each group of side-entry agitators 39 is no less than two. This creates a complex three-dimensional mixing flow field, further improving mixing efficiency and mixing uniformity.

[0051] In another technical solution, the propulsion blade 42 does not come into contact with the central shaft stirring paddle assembly.

[0052] In another technical solution, a set of support legs 112 includes four support columns 106 and a rectangular connecting frame 107 disposed in the middle. The tops of the four support columns 106 are fixedly connected to the upper cylindrical part 103, making it more stable and reliable.

[0053] In another technical solution, the width of the top rectangular frame 111 is smaller than the diameter of the upper cylindrical portion 103.

[0054] In another technical solution, the total height of the storage tank body 100 and the storage tank support frame is no more than 5m, which facilitates subsequent maintenance and cleaning.

[0055] In another technical solution, a radar level gauge is installed inside the storage tank 100 to avoid direct contact with the white oil, reducing the risk of corrosion and blockage. A magnetic level gauge is also provided as a backup to improve the reliability of the measurement.

[0056] Working Principle: A combined mixing mechanism is installed before the refining tank. White oil and white clay are first mixed by a turbine dynamic pipeline mixer before entering an SK-type static mixer. The combined mixing mechanism effectively improves the mass transfer efficiency of white oil and white clay. Then, multiple sets of anchor-type agitators within the refining tank further mix the ingredients, ensuring the refining effect of the white oil. The outlet of the bag filter delivers the refined white oil to the white oil refining feed inlet via a conveying pipeline and a pump. The auxiliary feed inlet introduces white oil additives. The refined white oil and auxiliary additives are stirred and blended in the blending tank to produce the finished white oil. The finished white oil is then stored through a finished product feed pipeline and a pump via the white oil feed inlet at the top of the storage tank. When needed, the oil density is generally less than 880 kg / m³. 3 The density of water is 1000 kg / m³. 3 Utilizing density differences, water and oil separate very thoroughly under static conditions (generally after 8 hours). Before each oil discharge, the sediment must be drained first. First, open the butterfly valve, then the ball valve and needle valve in sequence to drain the sediment. Observe that oil is coming out, then close the ball valve and needle valve to improve product quality. Finally, open the electric regulating valve to control the discharge speed of the white oil by adjusting its flow rate.

[0057] The above-described embodiments are only intended to illustrate the technical solution and features of this utility model, and are intended to enable those skilled in the art to implement them. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model are within the scope of protection of this utility model. Anything not described in detail is prior art.

Claims

1. A white oil refining production system, comprising a white oil refining device (200), a white oil blending device (201), and a white oil storage tank (202) arranged sequentially, wherein the white oil refining device (200) includes a refining tank body (1), a combined mixing mechanism disposed before the refining tank body (1), and a bag filter (2) disposed after the refining tank body (1); the white oil blending device (201) includes a blending tank body (30), and the white oil storage tank (202) includes a storage tank body (100), characterized in that, The combined mixing mechanism includes a turbine dynamic pipeline mixer (3) and an SK-type static mixer (4) arranged on the top of the refining tank (1) and connected in sequence. The two inlet ends of the turbine dynamic pipeline mixer (3) are respectively connected to the white oil conveying pipe and the white clay inlet pipe. The outlet end of the turbine dynamic pipeline mixer (3) is connected to the inlet end of the SK-type static mixer (4). The outlet end of the SK-type static mixer (4) is connected to the inlet (5) of the refining tank (1) through a right-angle bend (6). A mixing motor (8) is provided at the top center of the refining tank (1). The output shaft of the mixing motor (8) is connected to the mixing shaft (9) that extends into the refining tank (1). Multiple sets of anchor-type stirring paddles (10) are evenly provided on the mixing shaft (9). The bottom of the refining tank (1) is a conical structure. The bottom of the refining tank (1) is provided with a white oil discharge port (11) with a filter screen and a valve. The white oil discharge port (11) is connected to the inlet of the bag filter (2) through a white oil discharge pipe (12). The top of the blending tank (30) is provided with an auxiliary material inlet (32) and a white oil refining material inlet (31) connected to the outlet of the bag filter (2) via a conveying pipe and a delivery pump. The bottom of the blending tank (30) is a conical structure with a blending material outlet (33) at the lowest point. The top of the blending tank (30) is also provided with a breather valve A (40) for balancing the pressure inside the tank. The flange of the outlet pipe of the breather valve A (40) is connected to the flange of the flame arrester B (41). It also includes a stirring and blending mechanism installed inside the blending tank (30). The stirring and blending mechanism includes a central shaft stirring paddle assembly and a side stirring paddle assembly. The stirring paddle assembly includes a mixing motor (34) located at the top center of the mixing tank (30), a stirring shaft (35) connected to the output shaft of the mixing motor (34) and extending into the mixing tank (30), and an upper horizontal stirring rod (36), a middle inclined stirring rod (37), and a lower anchor stirring rod (38) arranged on the stirring shaft (35); the side stirring paddle assembly includes two sets of side-entry stirrers (39) symmetrically arranged on the side wall of the mixing tank (30), the rotation shaft of the side-entry stirrer (39) extending into the mixing tank (30) and having a propulsion blade (42) at the top. The storage tank body (100) is a horizontal tank body. The top of the storage tank body (100) is provided with a manhole (102) and a white oil inlet (101) connected to the blending material outlet (33) through a finished product feeding pipe and a liquid pump. The storage tank body (100) includes an integrally formed upper cylindrical part (103), a lower conical bucket-shaped part (104), and a bottom hollow semi-ellipsoidal part (105). The volume of the bottom hollow semi-ellipsoidal part (105) is 0.5% of the volume of the storage tank body (100). A storage tank support frame is provided below the storage tank body (100). It includes a top rectangular frame (111) fixed to the upper cylindrical part (103) and a set of support legs (112) symmetrically arranged on both sides thereon; the lowest point of the bottom hollow semi-ellipsoidal part (105) is provided with a white oil discharge pipe (113), and the white oil discharge pipe (113) is provided with a butterfly valve (114) and an electric regulating valve (116) from top to bottom. The white oil discharge pipe (113) between the butterfly valve (114) and the electric regulating valve (116) is also provided with a downward inclined drain pipe (117), and the drain pipe (117) is provided with a ball valve (118) and a needle valve (119) from top to bottom.

2. The white oil refining production system according to claim 1, characterized in that, The top of the refined tank (1) is also provided with a breather valve B (7) for balancing the pressure inside the tank.

3. The white oil refining production system according to claim 1, characterized in that, The number of multiple sets of anchor-type mixing paddles (10) is not less than four sets. Each set of anchor-type mixing paddles (10) includes four inclined upward mixing rods (13) evenly arranged around the mixing shaft (9). The angle between the mixing rods (13) and the mixing shaft (9) is 60°.

4. The white oil refining production system according to claim 1, characterized in that, The bottom of the refined tank (1) and on one side of the white oil discharge port (11) is provided with a white clay intake port (14).

5. The white oil refining production system according to claim 1, characterized in that, The filter screen at the white oil discharge port (11) is a high-strength stainless steel filter screen used to prevent white clay particles from flowing out.

6. The white oil refining production system according to claim 1, characterized in that, The side wall of the refined tank (1) is also provided with a heating jacket (15) and a heat insulation layer (16).

7. The white oil refining production system according to claim 1, characterized in that, The number of the upper horizontal stirring rod (36) and the middle inclined stirring rod (37) are both four and are evenly distributed along the circumference of the stirring shaft (35). The middle inclined stirring rod (37) is inclined upward or downward and has an angle of 60-70° with the stirring shaft (35). The number of the lower anchor stirring rod (38) is two pairs and is perpendicular to each other.

8. A white oil refining production system according to claim 1, characterized in that, The number of each side-entry agitator (39) is not less than two, and the propulsion blades (42) do not come into contact with the central shaft agitator assembly.

9. A white oil refining production system according to claim 1, characterized in that, A set of support legs (112) includes four support columns (106) and a rectangular connecting frame (107) disposed in the middle therein, with the tops of the four support columns (106) fixedly connected to the upper cylindrical part (103).

10. A white oil refining production system according to claim 1, characterized in that, Each of the refining tank (1), blending tank (30), and storage tank (100) is provided with one or more grounding wires with good conductivity between itself and the ground.

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