A sink guiding wall scraping type stirring oil drum
By using a sinking, guide-flow, scraper-type agitated oil tank design, the scraper continuously contacts the tank wall to scrape off the sediment, solving the problem of solid deposition in the oil tank. The movable design also improves process flexibility and equipment efficiency.
Patent Information
- Application Number
- CN202521825736.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-08-27
AI Technical Summary
Existing oil drums can cause suspended solids or colloids to deposit on the tank walls, forming sludge that affects the flow field and reaction rate. Furthermore, the equipment is fixed and cannot be moved, making it difficult to adjust according to changes in operating conditions.
A sinking, guide-flow, scraper-type mixing oil tank was designed, comprising a support frame, a motor, a sliding track, and a scraper. The scraper continuously contacts the tank wall to scrape off sediment. Combined with movable brake casters, the device can be flexibly laid out and its position adjusted.
Maintaining a consistent flow field within the tank improves separation efficiency, extends equipment lifespan, reduces operating costs, and enhances process flexibility and equipment utilization.
Smart Images

Figure CN224410284U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil mixing tank technology, specifically a sinking, guiding, scraping-wall type oil mixing tank. Background Technology
[0002] Oil drums, generally referring to cylindrical containers used for holding and transporting oils (including crude oil, lubricating oil, fuel oil, etc.) or other liquid chemicals, exhibit at least the following defects during use:
[0003] 1. Without a wall-scraping mechanism, suspended solids or colloids will continuously deposit and solidify near the tank wall, eventually forming a thick layer of sludge or scale on the surface. This not only occupies the original treatment volume but also alters the flow field, causing dead zones in temperature, concentration, or flow rate near the wall, further weakening the settling separation or reaction rate. Therefore, a settling-guided wall-scraping stirred oil tank is needed.
[0004] 2. In wastewater treatment or chemical separation processes, the location, flow direction, and layout of sedimentation tanks or reactors need to be adjusted in a timely manner for different sections and operating conditions. If the equipment is fixed and cannot be moved, it is difficult to perform regional interchanges or series / parallel adjustments according to changes in influent flow, pollutant concentration, or experimental needs, affecting the efficiency of overall optimization and process validation. Therefore, a portable stirring tank is needed. Utility Model Content
[0005] The main purpose of this utility model is to provide a sinking, guide-flow, scraping-wall type stirring oil tank, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A sinking, guide-flow, scraper-type mixing oil tank includes a support, a motor, and a tank body. A tank body fixing frame is installed on the side of the support, and the tank body is fixed in place by the tank body fixing frame. Brake casters are installed at the bottom of the support. A sliding rail is installed on the side of the support, and a sliding frame is installed on the side of the sliding rail. A motor is installed on the side of the sliding frame, and a stirring rod is installed at the bottom of the motor. A stirring shaft is installed on the side of the stirring rod, and a scraper is installed at the end of the stirring shaft.
[0008] Preferably, the sliding frame can slide up and down the sliding track.
[0009] Preferably, the length of the scraper is the same as that of the barrel body.
[0010] Preferably, the end of the scraper is in close contact with the inner wall of the barrel.
[0011] Preferably, the bottom of the bucket body is higher than the bottom of the brake caster.
[0012] Preferably, when the sliding frame is at the top of the sliding track, the stirring rod is located outside the barrel.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. Through continuous contact between the scraper and the barrel wall, all adhering materials are scraped off to the bottom in real time, keeping the wall surface smooth, avoiding the formation of any stagnant layer, and ensuring that the flow field and mass transfer conditions are maintained throughout the barrel.
[0015] 2. By installing the brake casters at the bottom, the operator only needs to release the brake to push the entire bucket to the optimal position, and then lock the brake to maintain stability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model from one perspective;
[0017] Figure 2 This is a schematic diagram of structure A of the present invention;
[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention from two perspectives;
[0019] In the diagram: 1. Support frame; 101. Barrel body fixing frame; 2. Brake caster wheel; 3. Sliding rail; 4. Sliding frame; 5. Motor; 6. Stirring rod; 601. Stirring shaft; 7. Scraper; 8. Barrel body. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0023] Example
[0024] Please see Figure 1-3 The present invention provides the following technical solution:
[0025] A sinking, guide-flow, scraper-type mixing oil tank includes a support 1, a motor 5, and a tank body 8. A tank body fixing frame 101 is installed on the side of the support 1, and the tank body 8 is fixed to the tank body 8 by the tank body fixing frame 101. A brake caster 2 is installed at the bottom of the support 1. A sliding rail 3 is installed on the side of the support 1. A sliding frame 4 is installed on the side of the sliding rail 3. A motor 5 is installed on the side of the sliding frame 4. A stirring rod 6 is installed at the bottom of the motor 5. A stirring shaft 601 is installed on the side of the stirring rod 6. A scraper 7 is installed at the end of the stirring shaft 601.
[0026] Specifically, the sliding frame 4 can slide up and down the sliding track 3.
[0027] Specifically: the length of the scraper 7 is the same as that of the barrel body.
[0028] Specifically: the end of the scraper 7 is in close contact with the inner wall of the barrel body 8.
[0029] Specifically: the bottom of the barrel body 8 is higher than the bottom of the brake caster 2.
[0030] Specifically: when the sliding frame 4 is at the top of the sliding track 3, the stirring rod 6 is located outside the barrel body 8.
[0031] In this embodiment, a stirring shaft 601 is installed on the side of the stirring rod 6, and a scraper 7 is installed at the end of the stirring shaft 601. The length of the scraper 7 is the same as that of the barrel body, and the end of the scraper 7 is in close contact with the inner wall of the barrel body 8.
[0032] In traditional oil drums or mixing tanks, as operating time accumulates, solid particles or high-viscosity materials often deposit or agglomerate near the wall, forming "dead zones"—stagnant layers where fluid flow is insufficient. These dead zones not only occupy effective volume but can also lead to incomplete local reactions and uneven temperature or concentration distribution. The online wall scraping device, through continuous contact between the scraper 7 and the tank wall, scrapes all adhering materials to the bottom in real time, keeping the wall surface smooth, preventing the formation of any stagnant layers, and ensuring that a consistent flow field and mass transfer conditions are maintained throughout the entire tank.
[0033] When the scraping and stirring actions are performed simultaneously or alternately, the scraped material re-enters the fluid at the bottom and is driven again by the stirring rod 6, achieving secondary dispersion or accelerated settling. In this way, dead corners are prevented on the wall surface, and the shear field and turbulence field of the fluid are made more uniform, significantly improving the solid-liquid or oil-liquid separation efficiency. At the same time, it can also quickly mix the solid particles that have been deposited at the bottom when needed, improving the reaction or mixing rate.
[0034] The accumulation of deposits on the walls is equivalent to forming a "bottom of the pot" inside the container, compressing the usable volume and forcing operators to stop the machine early for cleaning or to replace the container. However, the online wall scraping design allows the scraper to cover the entire inner wall without any blind spots. Any deposits that have formed are immediately removed to the bottom slag discharge area, thus making full use of the container's nominal capacity. This avoids shortening the operating cycle due to volume loss and reduces the frequency of downtime.
[0035] In high-temperature or high-shear mixing environments, dead zones on the wall surface not only easily lead to material charring but can also cause localized hot spots or excessive wear, damaging the inner lining coating. Continuous online wall scraping and cleaning keeps the wall surface clean, preventing corrosion and wear on the inner wall of the tank due to localized overheating or prolonged friction, extending equipment lifespan, and reducing the cost of replacing the lining or the entire tank.
[0036] Especially in fine chemical or food production, any wall deposits can become a source of secondary contamination or cause batch-to-batch variations. Online wall scraping keeps the inside of the container clean throughout the production process, preventing old or residue materials from mixing with new materials, thereby ensuring that each batch of product has accurate formulation, consistent color, and stable physical properties, meeting hygiene and quality requirements.
[0037] Through the aforementioned mechanisms and benefits, the online wall scraping function is not only an improvement in the "cleaning" aspect, but also a comprehensive optimization of fluid dynamics, heat and mass transfer, and process control, which can significantly improve equipment operating efficiency, maintenance convenience, and product consistency.
[0038] In the elastic adaptive structure, the scraper 7 is connected to the stirring shaft 601 via a preloaded spring. One end of the spring is fixed to the shaft, and the other end is connected to the scraper 7 bracket 1. When the scraper 7 is initially assembled and pushed against the tank wall, the spring is compressed, generating a continuous preload force. This preload force automatically adjusts with slight changes in the distance between the scraper 7 and the wall surface to ensure that the scraper 7 always maintains a certain contact pressure, thus balancing close contact with appropriate elastic cushioning.
[0039] When operating for extended periods or when slight deformations occur in the barrel wall due to temperature and pressure fluctuations, traditional rigid scrapers 7 often fail to adhere properly or become "stuck" because they cannot keep up with the changes in the wall surface. In contrast, the spring-connected adaptive scraper 7 can compensate for displacement by the extension or compression of the spring when the wall surface bounces inward or outward, ensuring that the blade always adheres evenly to the wall surface without leaving any dead corners, and preventing damage to the barrel or the scraper 7 itself due to excessive compression.
[0040] Vibrations, impacts, or collisions with hard particles generated during mixing can accelerate edge failure of the rigid scraper 7. The spring structure absorbs and disperses some of the impact energy: when a transient load occurs, the spring buffers the impact, delaying the transmission of the shock wave and reducing the peak impact force between the scraper 7 and the barrel wall. This buffering effect not only reduces fatigue cracks and edge chipping on the blade but also protects the coating on the inner wall of the barrel, extending the overall machine's operating cycle.
[0041] In processes requiring precise separation or airtight sealing, the gap between the scraper 7 and the barrel wall must be strictly controlled. The elastic adaptive structure automatically compensates for gap variations caused by manufacturing tolerances, assembly errors, or wear, ensuring the blade remains firmly in contact without jamming. This not only prevents fine particles or air bubbles from passing through the blade gap but also maintains high consistency during dynamic operation, ensuring process stability during sedimentation separation or mixing.
[0042] Because the spring structure can automatically adapt to wear within a certain range, when the edge of scraper 7 gradually wears down, the spring will automatically tighten to compensate for the wear thickness. Maintenance personnel only need to replace scraper 7 when it wears to its limit, without having to frequently adjust or recalibrate its position. This maintenance-friendly design greatly reduces the number of maintenance visits and downtime, thereby reducing overall operating costs.
[0043] In this embodiment, a brake caster 2 is installed at the bottom of the support 1, and the bottom of the barrel 8 is higher than the bottom of the brake caster 2. Firstly, this enables rapid on-site layout and process switching. In continuous production or batch testing, the inlet, outlet, and even external pipelines often need to be adjusted according to different raw material properties, flow rates, or reaction requirements. With the help of the brake caster 2 at the bottom, operators only need to release the brake to move the entire barrel to the optimal position, and then lock the brake to maintain stability. If parallel operation or series operation of other units is required subsequently, the position can be switched within seconds, greatly shortening process switching time and improving workshop response speed and production capacity flexibility.
[0044] Secondly, this mobile design significantly reduces installation and commissioning costs. Traditional settling or mixing devices, once on the ground, require extensive modifications to fixed pipelines, support and fixing, and foundation construction, making relocation difficult. In contrast, mobile devices only require simple connection to flexible hoses or quick-connect fittings, eliminating the need for dedicated foundations and pipe supports, thus reducing civil engineering and installation workload. This is especially true during the testing phase, when multiple units are repeatedly moved to verify different process paths, avoiding repeated welding and disassembly of pipelines, saving manpower, materials, and downtime costs.
[0045] Third, it improves the convenience of operation, maintenance, and emergency response. When internal blockages occur, or parts need to be replaced or cleaned, the oil drum can be pushed to the maintenance platform or safe area for operation, eliminating the need for disassembly on high-risk production lines; after completion, it can be quickly pushed back to its original position and put back into operation. In addition, in the event of emergencies such as pipeline leaks or uncontrolled reactions, the risk can be isolated to a safe area by rapid relocation, protecting personnel and the production environment.
[0046] Fourth, this type of mobile oil drum helps optimize workshop space utilization and personnel collaboration. Flexible movement path planning allows multiple work sections to share the same equipment, avoiding long-term idleness or redundant investment. Simultaneously, the high positioning accuracy of the brake casters ensures the equipment remains stable and securely in place, providing a stable working platform for operators. During collaborative work, two or more people can easily move the entire drum, achieving efficient coordination and on-site scheduling.
[0047] Finally, it also offers the advantage of low-cost expansion and relocation in the later stages. With the need for production line upgrades or relocation, the entire set of submerged, guide-flow, scraper-type mixing tanks can be pushed to the new site without the need for professional lifting and disassembly, simplifying the relocation process. Compared to fixed equipment, this high degree of modularity and mobility makes iteration and upgrades throughout the equipment's lifecycle more economical and time-saving.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sinking-guided scraping-wall type stirring oil tank, comprising a support (1), a motor (5), and a tank body (8), characterized in that: The bracket (1) has a barrel fixing frame (101) installed on its side, and the barrel (8) is fixed on the barrel fixing frame (101). The bracket (1) has a brake caster (2) installed at its bottom. The bracket (1) has a sliding rail (3) installed on its side. The sliding rail (3) has a sliding frame (4) installed on its side. The sliding frame (4) has a motor (5) installed on its side. The motor (5) has a stirring rod (6) installed at its bottom. The stirring rod (6) has a stirring shaft (601) installed on its side. The stirring shaft (601) has a scraper (7) installed at its end.
2. The sinking-guided scraping-wall type stirring oil tank according to claim 1, characterized in that: The sliding frame (4) can slide up and down on the sliding track (3).
3. The sinking-guided scraping-wall type stirring oil tank according to claim 1, characterized in that: The scraper (7) is the same length as the barrel body.
4. The sinking-guided scraping-wall type stirring oil tank according to claim 1, characterized in that: The end of the scraper (7) is in close contact with the inner wall of the barrel (8).
5. A sinking, guide-flow, scraping-wall type stirring oil tank according to claim 1, characterized in that: The bottom of the barrel (8) is higher than the bottom of the brake caster (2).
6. A sinking, guide-flow, scraping-wall type stirring oil tank according to claim 1, characterized in that: When the sliding frame (4) is at the top of the sliding track (3), the stirring rod (6) is outside the barrel body (8).
Citation Information
Patent Citations
Stirring mechanism for oil drum
CN220878439U
