Blending and storing system for white oil
By employing a complex three-dimensional stirring flow field and a horizontal storage tank design in the white oil blending tank, the problems of uneven mixing and water deposition in white oil have been solved, achieving efficient mixing and convenient drainage, thereby improving the quality and storage convenience of white oil products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI WEIJIA TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-05
AI Technical Summary
Existing white oil mixing tanks do not mix thoroughly and have dead zones in the mixing process, making it difficult to meet diverse mixing needs. Furthermore, the storage tanks are difficult to effectively drain moisture after absorption, affecting product quality and making maintenance and cleaning difficult.
The system employs a combination of central shaft agitator assembly and side agitator assembly, including horizontal, inclined and anchored agitators, to form a complex three-dimensional mixing flow field. Combined with a horizontal storage tank design and inclined drain pipe, it achieves uniform mixing and convenient discharge of bottom water.
It achieves uniform mixing of white oil, improves product quality stability, reduces the difficulty of maintenance and cleaning of storage tanks, and meets diverse blending needs.
Smart Images
Figure CN224194490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of white oil processing technology, specifically to a white oil blending and storage system. Background Technology
[0002] 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.
[0003] 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
[0004] The purpose of this invention is to provide a white oil blending and storage system to address the aforementioned deficiencies.
[0005] A white oil blending and storage system includes a white oil blending device and a white oil storage tank arranged sequentially. The white oil blending device includes a blending tank body, and the white oil storage tank includes a storage tank body.
[0006] The top of the blending tank is equipped with an auxiliary material inlet and a white oil refining material inlet. 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 equipped with a breather valve A for balancing the pressure inside the tank. The flange of the outlet pipe of the breather valve A is connected to the flange of the 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.
[0007] The storage tank is a horizontal tank. The top of the tank has a manhole and a white oil inlet connected to the blending material outlet via a finished product feeding pipe and a liquid pump. The tank includes an integrally formed upper cylindrical section, a lower conical bucket-shaped section, and a bottom hollow semi-ellipsoidal section. The volume of the bottom hollow semi-ellipsoidal section is 0.5% of the tank body volume. A support frame is located below the tank, comprising a top rectangular frame fixed to the upper cylindrical section and a set of support legs symmetrically arranged on both sides. A white oil discharge pipe is located at the lowest point of the bottom hollow semi-ellipsoidal section. From top to bottom, the white oil discharge pipe is equipped with a butterfly valve and an electric regulating valve. A downward-sloping drain pipe is also located on the white oil discharge pipe between the butterfly valve and the electric regulating valve. From top to bottom, the drain pipe is equipped with a ball valve and a needle valve.
[0008] 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.
[0009] Preferably, the number of the lower anchor-type stirring rods is two pairs and they are arranged perpendicular to each other.
[0010] Preferably, each group of side-entry mixers has at least two mixers.
[0011] Preferably, the propulsion blades do not come into contact with the central shaft stirring paddle assembly.
[0012] 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.
[0013] Preferably, the width of the top rectangular frame is smaller than the diameter of the upper cylindrical portion.
[0014] Preferably, the total height of the storage tank body and the storage tank support frame is no more than 5m.
[0015] Preferably, one or more grounding wires with good conductivity are provided between the mixing tank and the storage tank and the ground.
[0016] The advantages of this invention are: the mixing 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 settling and discharge of water, preventing any impact on the quality of the white oil product; and it significantly reduces the difficulty of subsequent maintenance and cleaning of the white oil storage tank. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the connection structure of this utility model.
[0018] Figure 2 This is a schematic diagram of a white oil blending device.
[0019] Figure 3 This is a schematic diagram of the upper horizontal stirring rod.
[0020] Figure 4 This is a schematic diagram of a white oil storage tank.
[0021] Figure 5 This is a schematic diagram of the structure of the white oil discharge pipe. Detailed Implementation
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] 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.
[0027] As shown in the attached figure, a white oil blending and storage system includes a white oil blending device 201 and a white oil storage tank 202 arranged sequentially. 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.
[0028] The top of the mixing tank 30 is provided with an auxiliary material inlet 32 and a white oil refining material inlet 31. The bottom of the mixing tank 30 has a conical structure and a mixing material outlet 33 at the lowest point. The top of the mixing 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 mixing mechanism installed inside the mixing tank 30. The stirring and mixing mechanism includes a central shaft stirring paddle assembly and a side stirring paddle assembly. The central shaft stirring paddle assembly includes a mixing motor 34 installed at the center of the top of the mixing tank 30, and a mixing motor 34 connected to the output shaft of the mixing motor 34 and extending into the mixing tank 30. The tank includes a stirring shaft 35 and an upper horizontal stirring rod 36, a middle inclined stirring rod 37, and a lower anchor stirring rod 38 mounted on the stirring shaft 35. The stirring shaft is vertically positioned 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), 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 the white oil in the tank. The lowermost layer is an anchor stirring blade (lower anchor stirring rod), located near the bottom of the tank, to prevent the white oil from settling at the bottom of the tank and ensure that the white oil in all parts of the tank is fully stirred.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] In another technical solution, one or more grounding wires with good conductivity are provided between the mixing tank 30 and the storage tank 100 and the ground.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] In another technical solution, the propulsion blade 42 does not come into contact with the central shaft stirring paddle assembly.
[0038] 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.
[0039] In another technical solution, the width of the top rectangular frame 111 is smaller than the diameter of the upper cylindrical portion 103.
[0040] 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.
[0041] 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.
[0042] Working principle: Refined white oil is fed into the white oil refining feed inlet, while auxiliary feed inlets introduce white oil additives. The refined white oil and additives are stirred and blended in the blending tank to produce the finished white oil. The finished white oil is then sent to storage via a finished product feeding pipe and a pump through 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.
[0043] 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 blending and storage system, comprising a white oil blending device (201) and a white oil storage tank (202) arranged sequentially, wherein 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 top of the mixing tank (30) is provided with an auxiliary material inlet (32) and a white oil refining material inlet (31). The bottom of the mixing tank (30) is a conical structure with a mixing material outlet (33) at the lowest point. The top of the mixing 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 mixing mechanism installed inside the mixing tank (30). The stirring and mixing mechanism includes a central shaft stirring paddle assembly and a side stirring paddle assembly. The central shaft stirring paddle assembly The components include 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 blending and storage system for white oil 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).
3. The blending and storage system for white oil according to claim 2, characterized in that, The number of the lower anchor-type stirring rods (38) is two pairs and they are arranged perpendicular to each other.
4. The blending and storage system for white oil according to claim 1, characterized in that, The number of each set of side-entry mixers (39) shall not be less than two.
5. A blending and storage system for white oil according to claim 4, characterized in that, The propulsion blade (42) does not come into contact with the central shaft stirring paddle assembly.
6. A blending and storage system for white oil 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).
7. A blending and storage system for white oil according to claim 1, characterized in that, The width of the top rectangular frame (111) is smaller than the diameter of the upper cylindrical part (103).
8. A blending and storage system for white oil according to claim 1, characterized in that, The total height of the tank body (100) and the tank support frame shall not exceed 5m.
9. A blending and storage system for white oil according to claim 1, characterized in that, One or more grounding wires with good conductivity are provided between the mixing tank (30) and the storage tank (100) and the ground.