Flash tank for regenerating waste lubricating oil

Abstract

The utility model relates to the technical field of waste lubricating oil regeneration, in particular to a flash tank for waste lubricating oil regeneration, which comprises a flash tank body and a hot blast stove, a circulating box is fixedly mounted at the top of the hot blast stove, and a heating plate is fixedly mounted below the inside of the circulating box. According to the flash tank for regenerating the waste lubricating oil, the flash tank body, the hot blast stove, the heating plate, the circulating box, the pump body, an output pipe, a recycling pipe, a heating pipe, a stirring shaft, a stirring roller, a motor, a discharging pipe, a feeding pipe and a water pipe are matched for use, and heat conduction oil flows upwards in a spiral shape in the lower half area of the flash tank body when flowing in the heating pipe; and full contact with waste lubricating oil is realized. Meanwhile, the control motor is started, and the driving end drives the stirring shaft to rotate. And the stirring shaft rotates to enable the stirring roller to rotate, so that a stirring effect is formed in the flash tank body. The stirring effect keeps the waste lubricating oil in a dynamic state.

Description

Technical Field

[0001] The utility model relates to the technical field of waste lubricating oil regeneration, in particular to a flash tank for waste lubricating oil regeneration. Background Art

[0002] The concept and technology of waste lubricating oil regeneration have gradually developed in response to the need to deal with environmental pollution and resource recovery. Through regeneration technology, waste lubricating oil can be filtered, separated, dehydrated and chemically treated to remove pollutants and restore its performance. The regenerated lubricating oil can be used in various industrial applications, such as lubricating mechanical equipment, metal processing and producing finished oil, which not only reduces the use of new crude oil, but also reduces costs and environmental impact.

[0003] The Chinese patent with the publication number CN220633366U discloses a waste lubricating oil regeneration tank, which includes a vacuum tank, two sets of supporting legs are fixedly installed on the bottom wall of the vacuum tank, a heater is fixedly installed at the center of the bottom wall in the inner cavity of the vacuum tank, and a first filtering device is arranged on the left side of the vacuum tank. After entering the vacuum tank, the waste lubricating oil is heated under a vacuum state to evaporate the water, and the evaporated water passes through the condensing water device arranged behind the water pipe to perform water-oil separation operation, and then passes through the second filtering device on the right side of the vacuum tank for secondary filtration, and finally realizes the regeneration of the waste lubricating oil.

[0004] With respect to the above-mentioned related technologies, the device has some shortcomings. In actual use, the waste lubricating oil needs to be heated to separate the water. However, the device adopts local heating in the process of heating the waste lubricating oil, and the waste lubricating oil is in a static state. This local heating design causes the waste lubricating oil to be heated unevenly during the initial heating process, thereby affecting the improvement of thermal efficiency and increasing energy consumption. Therefore, it is necessary to provide a flash tank for waste lubricating oil regeneration to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a flash tank for regenerating waste lubricating oil to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flash tank for regenerating waste lubricating oil, comprising:

[0008] The flash tank body and the hot blast furnace, a circulation box is fixedly installed on the top of the hot blast furnace, a heating plate is fixedly installed below the inside of the circulation box, and the output end of the hot blast furnace is located below the internal heating plate of the circulation box, a recovery pipe is fixedly installed on the top of the circulation box, and one end of the recovery pipe passes through one side of the flash tank body and extends to the inside of the flash tank body, and an output pipe is fixedly installed on one side of the circulation box;

[0009] The output pipe is provided with a pump body, and the pump body is fixedly connected to one side of the top of the hot blast furnace, one end of the output pipe passes through the bottom of one side of the flash tank body and extends to the inside of the flash tank body, a heating pipe is fixedly connected between one end of the recovery pipe and one end of the output pipe, and a discharge pipe is fixedly installed and inserted below the other side of the flash tank body;

[0010] A plurality of supporting legs are fixedly installed at equal intervals on the outer side of the bottom of the flash tank body, a feed pipe is fixedly installed on the front of the flash tank body, a water pipe is fixedly installed on the top of the flash tank body, and a stirring mechanism is arranged at the lower part of the flash tank body.

[0011] Preferably, a plurality of annular heat conducting plates are arranged on the outer wall of the heating tube, and a plurality of heat conducting rods are fixedly mounted on the outer surface of the annular heat conducting plates.

[0012] Preferably, the stirring mechanism includes a stirring shaft, and the bottom end of the stirring shaft is rotatably connected to a sealed bearing installed on the bottom of the flash tank body, a plurality of stirring rollers are fixedly installed on the outer wall of the stirring shaft, a motor is fixedly installed on the bottom of the flash tank body, and the driving end of the motor passes through the bottom of the flash tank body and extends to the interior of the flash tank body and is fixedly connected to the bottom end of the stirring shaft.

[0013] Preferably, a plurality of stabilizing blocks are fixedly connected between the heating tube and the inner wall of the flash tank body.

[0014] Preferably, a temperature sensor is fixedly installed on the other side of the flash tank body.

[0015] Preferably, the heating tube is in the shape of a spiral coil.

[0016] Preferably, the annular heat conducting plate is composed of two hinged arc plates, and the two arc plates are fixedly connected by bolts on one side away from the hinge point. A threaded hole is opened on the outer wall of the annular heat conducting plate, and the annular heat conducting plate is threadedly connected with a butterfly bolt through the threaded hole.

[0017] Preferably, the annular heat conducting plate and the heat conducting rod are both made of stainless steel.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model uses a flash tank body, a hot air furnace, a heating plate, a circulation box, a pump body, an output pipe, a recovery pipe, a heating pipe, a stirring shaft, a stirring roller, a motor, a discharge pipe, a feed pipe and a water pipe in coordination. When the heat transfer oil flows inside the heating pipe, it forms a spiral upward flow in the lower half of the flash tank body and fully contacts with the waste lubricating oil. At the same time, the control motor is started, and the driving end drives the stirring shaft to rotate. The rotation of the stirring shaft causes the stirring roller to rotate, thereby forming a stirring effect inside the flash tank body. This stirring action keeps the waste lubricating oil in a dynamic state, so that the heat is transferred to the waste lubricating oil more evenly. Therefore, the waste lubricating oil can be fully heated, and water vapor can be flashed out quickly and efficiently, thereby improving thermal efficiency and reducing energy consumption.

[0020] 2. The utility model uses an annular heat-conducting plate, a heat-conducting rod, a butterfly bolt and a threaded hole. In the process of heating the waste lubricating oil inside the flash tank body by the heat-conducting oil flowing inside the heating tube, the annular heat-conducting plate and the heat-conducting rod located on the outer wall of the heating tube will further increase the contact area between the heating tube and the waste mineral oil, thereby improving the heat exchange efficiency and further reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model.

[0022] Figure 2 It is a front view structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the top view of the heating tube in the utility model.

[0024] Figure 4 It is a structural schematic diagram of the annular heat conducting plate in the utility model.

[0025] Figure 5 It is a structural schematic diagram of the butterfly bolt in the utility model.

[0026] In the figure: 1. Flash tank body; 2. Hot air furnace; 3. Heating plate; 4. Circulation box; 5. Pump body; 6. Output pipe; 7. Recovery pipe; 8. Heating pipe; 9. Stirring shaft; 10. Stirring roller; 11. Stabilizing block; 12. Temperature sensor; 13. Motor; 14. Discharge pipe; 15. Support leg; 16. Annular heat conduction plate; 17. Heat conduction rod; 18. Feed pipe; 19. Butterfly bolt; 20. Threaded hole; 21. Water pipe. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-5 , an embodiment provided by the utility model:

[0032] A flash tank for regenerating waste lubricating oil, comprising:

[0033] The flash tank body 1 and the hot blast furnace 2, a circulation box 4 is fixedly installed on the top of the hot blast furnace 2, a heating plate 3 is fixedly installed below the inside of the circulation box 4, and the output end of the hot blast furnace 2 is located below the internal heating plate 3 of the circulation box 4, a recovery pipe 7 is fixedly installed on the top of the circulation box 4, and one end of the recovery pipe 7 passes through one side of the flash tank body 1 and extends to the inside of the flash tank body 1, and an output pipe 6 is fixedly installed on one side of the circulation box 4;

[0034] A pump body 5 is provided on the output pipe 6, and the pump body 5 is fixedly connected to one side of the top of the hot blast furnace 2. One end of the output pipe 6 passes through the bottom of one side of the flash tank body 1 and extends to the inside of the flash tank body 1. A heating pipe 8 is fixedly connected between one end of the recovery pipe 7 and one end of the output pipe 6. A discharge pipe 14 is fixedly installed and inserted below the other side of the flash tank body 1.

[0035] A plurality of support legs 15 are equidistantly fixedly installed on the outside of the bottom of the flash tank body 1, a feed pipe 18 is fixedly inserted through the front of the flash tank body 1, a water pipe 21 is fixedly inserted through the top of the flash tank body 1, and a stirring mechanism is provided at the bottom of the flash tank body 1.

[0036] A plurality of annular heat conducting plates 16 are arranged on the outer wall of the heating tube 8 , and a plurality of heat conducting rods 17 are fixedly mounted on the outer surface of the annular heat conducting plates 16 .

[0037] In one embodiment, the stirring mechanism includes a stirring shaft 9, and the bottom end of the stirring shaft 9 is rotatably connected to a sealed bearing installed on the bottom of the flash tank body 1, a plurality of stirring rollers 10 are fixedly installed on the outer wall of the stirring shaft 9, a motor 13 is fixedly installed on the bottom of the flash tank body 1, and a driving end of the motor 13 passes through the bottom of the flash tank body 1 and extends to the inside of the flash tank body 1 and is fixedly connected to the bottom end of the stirring shaft 9.

[0038] In one of the preferred embodiments, a plurality of stabilizing blocks 11 are fixedly connected between the heating tube 8 and the inner wall of the flash tank body 1 , thereby improving the stability of the heating tube 8 during use.

[0039] In one of the embodiments, a temperature sensor 12 is fixedly installed on the other side of the flash tank body 1. The temperature sensor 12 can monitor the temperature change inside the flash tank in real time to ensure the accuracy and stability of temperature control during operation.

[0040] In one preferred embodiment, the shape of the heating tube 8 is a spiral coil, and the spiral coil design makes the effective heating surface area of ​​the heating tube 8 larger than that of a traditional straight tube. In this way, the heat exchange efficiency between the heating tube 8 and the waste lubricating oil is greatly improved, the heating speed is faster, and the energy utilization is more efficient.

[0041] In one of the embodiments, the annular heat conducting plate 16 is composed of two arc-shaped plates hinged together, and the two arc-shaped plates are fixedly connected by bolts on one side away from the hinge point. A threaded hole 20 is opened on the outer wall of the annular heat conducting plate 16, and the annular heat conducting plate 16 is threadedly connected with a butterfly bolt 19 through the threaded hole 20, so that the annular heat conducting plate 16 is fixed to the outer wall of the heating tube 8 by clamping, which is convenient for disassembly and assembly, making subsequent maintenance and replacement more convenient, and by tightening the butterfly bolt 19 to abut against the outer wall of the heating tube 8, the installation of the annular heat conducting plate 16 is made more secure.

[0042] In one of the preferred embodiments, the annular heat conducting plate 16 and the heat conducting rod 17 are both made of stainless steel. Stainless steel has excellent corrosion resistance and can operate stably for a long time in a humid and high temperature environment, thereby extending the service life of the annular heat conducting plate 16 and the heat conducting rod 17.

[0043] The working principle of the utility model is as follows: the electrical components appearing in the article are all connected to the external main controller and the 220V mains electricity, and the main controller can be a conventional known device for control such as a computer. The parts not involved in the device are the same as the prior art or can be implemented by the prior art. When in use, the filtered waste lubricating oil is added to the lower half of the flash tank body 1 through the feed pipe 18. At this time, a certain amount of heat transfer oil has been injected into the circulation box 4 in advance, and the hot air furnace 2 is controlled to start working. The hot air furnace 2 will heat the heat transfer oil in the circulation box 4 through the heating plate 3. After the heat transfer oil is heated, the pump body 5 is started. The pump body 5 will draw the heated heat transfer oil in the circulation box 4 through the output pipe 6 into the heating tube 8. The heat transfer oil will flow into the recovery pipe 7 through the heating tube 8, and finally flow back to the circulation box 4 for heating. In the heating tube 8, when the heat transfer oil flows, it forms a spiral upward flow in the lower half of the flash tank body 1 and fully contacts with the waste lubricating oil. At the same time, the control motor 13 is started, and the driving end drives the stirring shaft 9 to rotate. The rotation of the stirring shaft 9 causes the stirring roller 10 to rotate, thereby forming a stirring effect inside the flash tank body 1. This stirring action keeps the waste lubricating oil in a dynamic state, allowing heat to be transferred to the waste lubricating oil more evenly. Therefore, the waste lubricating oil can be fully heated, and water vapor can be flashed out quickly and efficiently, thereby improving thermal efficiency and reducing energy consumption. The evaporated water vapor will be discharged through the water pipe 21 to the next process for condensation, and the waste lubricating oil located at the bottom of the flash tank body 1 will be discharged through the discharge pipe 14 for subsequent processing.

[0044] In the process of heating the waste lubricating oil inside the flash tank body 1 by the heat transfer oil flowing inside the heating tube 8, the annular heat transfer plate 16 and the heat transfer rod 17 located on the outer wall of the heating tube 8 will further increase the contact area between the heating tube 8 and the waste mineral oil, thereby improving the heat exchange efficiency and further reducing energy consumption.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flash tank for waste lubricating oil regeneration, characterized in that: It includes: A flash tank body (1) and a hot air furnace (2), a circulation box (4) is fixedly installed on the top of the hot air furnace (2), a heating plate (3) is fixedly installed below the inside of the circulation box (4), and the output end of the hot air furnace (2) is located below the internal heating plate (3) of the circulation box (4), a recovery pipe (7) is fixedly installed on the top of the circulation box (4), and one end of the recovery pipe (7) passes through one side of the flash tank body (1) and extends to the inside of the flash tank body (1), and an output pipe (6) is fixedly installed on one side of the circulation box (4); A pump body (5) is provided on the output pipe (6), and the pump body (5) is fixedly connected to one side of the top of the hot blast furnace (2); one end of the output pipe (6) passes through the bottom of one side of the flash tank body (1) and extends to the inside of the flash tank body (1); a heating pipe (8) is fixedly connected between one end of the recovery pipe (7) and one end of the output pipe (6); and a discharge pipe (14) is fixedly inserted and installed below the other side of the flash tank body (1); A plurality of supporting legs (15) are fixedly installed at equal intervals on the outer side of the bottom of the flash tank body (1), a feed pipe (18) is fixedly installed through the front of the flash tank body (1), a water pipe (21) is fixedly installed through the top of the flash tank body (1), and a stirring mechanism is arranged at the bottom of the flash tank body (1).

2. The flash tank for waste lubricating oil regeneration according to claim 1, characterized in that: A plurality of annular heat conducting plates (16) are arranged on the outer wall of the heating tube (8), and a plurality of heat conducting rods (17) are fixedly mounted on the outer surface of the annular heat conducting plates (16).

3. The flash tank for waste lubricating oil regeneration according to claim 1, characterized in that: The stirring mechanism comprises a stirring shaft (9), and the bottom end of the stirring shaft (9) is rotatably connected to a sealed bearing installed on the bottom of the flash tank body (1), a plurality of stirring rollers (10) are fixedly installed on the outer wall of the stirring shaft (9), and a motor (13) is fixedly installed on the bottom of the flash tank body (1), and the driving end of the motor (13) passes through the bottom of the flash tank body (1) and extends to the inside of the flash tank body (1) and is fixedly connected to the bottom end of the stirring shaft (9).

4. The flash tank for waste lubricating oil regeneration according to claim 1, characterized in that: A plurality of stabilizing blocks (11) are fixedly connected between the heating tube (8) and the inner wall of the flash tank body (1).

5. The flash tank for waste lubricating oil regeneration according to claim 1, characterized in that: A temperature sensor (12) is fixedly mounted on the other side of the flash tank body (1).

6. The flash tank for waste lubricating oil regeneration according to claim 1, characterized in that: The heating tube (8) is in the shape of a spiral coil.

7. The flash tank for waste lubricating oil regeneration according to claim 2, characterized in that: The annular heat conducting plate (16) is composed of two arc-shaped plates hinged together, and the two arc-shaped plates are fixedly connected by bolts on one side away from the hinge point. A threaded hole (20) is provided on the outer wall of the annular heat conducting plate (16), and the annular heat conducting plate (16) is threadedly connected to a butterfly bolt (19) through the threaded hole (20).

8. The flash tank for waste lubricating oil regeneration according to claim 2, characterized in that: The annular heat conducting plate (16) and the heat conducting rod (17) are both made of stainless steel.

Images