Waste mineral oil distillation retort with preheating mechanism

Abstract

The utility model belongs to the technical field of distillation equipment, and discloses a waste mineral oil distillation retort with a preheating mechanism, which comprises a retort body, the retort body is provided with a cavity and an inner cavity, a heater is arranged at the bottom in the retort body, the output end of the heater is connected with a heating coil, the heating coil is arranged in the cavity, and the preheating mechanism is arranged in the cavity. The heating coil is wound on the outer side of the inner cavity, and a barrel-shaped heat conducting plate is installed in the cavity and arranged on the outer side of the heating coil; a preheating box is installed on the outer side of the tank body, a preheating pipe is installed in the preheating box, a conveying pump is installed between the preheating box and the tank body, and a mesh heat conduction plate is installed at the bottom in the preheating box and connected with the barrel-shaped heat conduction plate. A filter net bag is installed at the input end of the preheating box, a ceramic ring is installed on the inner ring of the barrel-shaped heat conduction plate, and by means of the structural design, effective recycling of energy is achieved, and economic cost is good.

Description

Technical Field

[0001] This utility model belongs to the field of distillation equipment technology, specifically relating to a waste mineral oil distillation tank with a preheating mechanism. Background Technology

[0002] Waste mineral oil refers to mineral oil extracted and refined from petroleum, coal, and oil shale, which, during use, has had its original physicochemical properties altered by impurities, oxidation, and heat, rendering it unusable. Waste mineral oil is classified as hazardous waste, containing various toxic and harmful substances. If not properly treated, it can cause serious harm to the environment and human health. Distillation is one method of treatment.

[0003] Distillation can effectively separate impurities from waste mineral oil, improve the purity and quality of the oil, optimize the recovery rate, and reduce waste. Distillation technology can safely and effectively treat these wastes and transform them into reusable resources, reducing environmental pollution. The distilled oil can be used as a renewable resource to manufacture products such as lubricating oil and fuel oil, realizing the recycling of resources, alleviating resource shortages, and bringing economic benefits. The effective treatment and recycling of waste mineral oil is crucial to the sustainable development of industry. Distillation technology plays a key role in this process, promoting the development of industry towards a greener and more environmentally friendly direction.

[0004] Currently, users have found that waste mineral oil has high viscosity during distillation, making it difficult to remove water and light components during the distillation process, resulting in low dehydration efficiency. This problem cannot be solved until the temperature fully rises to the critical value, requiring a longer heating time to ensure the treatment effect, which leads to low treatment efficiency. Therefore, a waste mineral oil distillation tank with a preheating mechanism is needed to solve this problem. Utility Model Content

[0005] In view of the problems mentioned above in the background art, the purpose of this utility model is to provide a waste mineral oil distillation tank with a preheating mechanism.

[0006] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0007] A waste mineral oil distillation tank with a preheating mechanism includes a tank body, the tank body having a cavity and an inner cavity, a heater installed at the bottom of the inner cavity, the output end of the heater being connected to a heating coil, the heating coil being placed inside the cavity and coiled around the outer side of the inner cavity, and a cylindrical heat-conducting plate installed inside the cavity, the cylindrical heat-conducting plate being placed outside the heating coil;

[0008] A preheating box is installed on the outside of the tank, a preheating pipe is installed inside the preheating box, a delivery pump is installed between the preheating box and the tank, and a perforated heat-conducting plate is installed at the bottom of the preheating box, which is connected to the cylindrical heat-conducting plate.

[0009] A filter screen is installed at the input end of the preheating box, and a ceramic ring is installed on the inner ring of the cylindrical heat-conducting plate.

[0010] Furthermore, the tank is equipped with a pressure sensor and a temperature sensor, with the signal input terminals of both sensors located at the top of the inner cavity. This design enables real-time monitoring of the pressure and temperature inside the tank, ensuring normal operation of the equipment and facilitating data control.

[0011] Furthermore, a vacuum pump is installed on the top of the tank body, with the input end of the vacuum pump located at the top of the inner cavity. A waterproof venting valve is installed on the input end of the vacuum pump. This design allows the vacuum pump to extract gas from the inner cavity, achieving pressure control, while the waterproof venting valve prevents water vapor from leaking out.

[0012] Furthermore, both the tank body and the preheating box are connected to the bottom with support legs, and the bottom of the support legs is connected to an adjustable support base. This design facilitates the maintenance and replacement of the delivery pump and heater, and the installation of the adjustable support base allows for height adaptation according to the usage environment, ensuring the effectiveness of the connection.

[0013] Furthermore, a connecting plate is detachably connected between the perforated heat-conducting plate and the cylindrical heat-conducting plate. This design allows for the disassembly of the perforated heat-conducting plate, the cylindrical heat-conducting plate, and the preheating box.

[0014] The beneficial effects of using this utility model are as follows:

[0015] By adopting the structural design of this utility model, the waste mineral oil is preheated before distillation, which can raise its temperature and reduce the viscosity of the oil. This is beneficial for the removal of water and light components during the subsequent distillation process, thereby improving the dehydration efficiency. Furthermore, when the preheated waste mineral oil enters the inner cavity, its temperature is already close to the temperature required for distillation, which can reduce the heating time, optimize the distillation process, and improve the processing efficiency. Preheating the waste mineral oil can avoid equipment damage or safety accidents caused by a rapid increase in temperature, ensuring the smooth progress of the distillation process.

[0016] The structural design of this utility model utilizes the heat source required for preheating, which comes from the condenser return water connected to the distillation tank and the heating coil used for heating. These two are essential equipment for distillation, so this structure achieves effective energy recovery and utilization, resulting in good economic cost. Attached Figure Description

[0017] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of a waste mineral oil distillation tank with a preheating mechanism according to the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a waste mineral oil distillation tank with a preheating mechanism according to the present invention;

[0020] The symbols for the main components are explained below:

[0021] Tank body 1; cavity 2; inner cavity 3; heater 4; heating coil 5; cylindrical heat-conducting plate 6; preheating box 7; preheating pipe 8; transfer pump 9; mesh heat-conducting plate 10; filter bag 11; pressure sensor 12; temperature sensor 13; vacuum pump 14; waterproof ventilation valve 15; support leg 16; adjustable support base 17; connecting plate 18; ceramic ring 19. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1:

[0024] like Figure 1 , Figure 2 As shown, the present invention provides a waste mineral oil distillation tank with a preheating mechanism, comprising a tank body 1, the tank body 1 having a cavity 2 and an inner cavity 3, a heater 4 installed at the bottom of the tank body 1, the output end of the heater 4 being connected to a heating coil 5, the heating coil 5 being placed inside the cavity 2, the heating coil 5 being coiled around the outside of the inner cavity 3, and a cylindrical heat-conducting plate 6 being installed inside the cavity 2, the cylindrical heat-conducting plate 6 being placed outside the heating coil 5;

[0025] A preheating box 7 is installed on the outside of the tank body 1. A preheating pipe 8 is installed inside the preheating box 7. A transfer pump 9 is installed between the preheating box 7 and the tank body 1. A mesh heat-conducting plate 10 is installed at the bottom inside the preheating box 7. The mesh heat-conducting plate 10 is connected to the cylindrical heat-conducting plate 6.

[0026] A filter bag 11 is installed at the input end of the preheating box 7, and a ceramic ring 19 is installed on the inner ring of the cylindrical heat-conducting plate 6.

[0027] In this embodiment, the waste mineral oil enters the preheating box 7 after passing through the filter screen 11. Then, the oil is sent into the inner cavity 2 by the transfer pump 9, where it is heated and vaporized by the heating coil 5 to achieve the purpose of distillation. The gas is recovered by the condenser connected to the distillation tank and condensed back into liquid for collection. The condenser is existing technology and is often used in conjunction with the distillation tank. The connection method with the distillation tank is also easy for those skilled in the relevant field to handle. It is not shown in the figure and will not be described in detail.

[0028] The filter bag 11 performs solid-state impurity removal on waste mineral oil to prevent subsequent blockage of the oil flow pipes. When the oil is in the preheating box, it comes into contact with the preheating pipe 8 and the mesh heat-conducting plate 10. The input end of the preheating pipe 8 is connected to the condenser's return water with temperature, so it has temperature and can preheat the oil at a low temperature. The mesh heat-conducting plate 10 is connected to the cylindrical heat-conducting plate 6 in the cavity 2. The cavity 2 contains the heating coil 5, which serves as the heat source for distillation, so the temperature inside the cavity 2 is relatively high. Under the effect of heat transfer, the mesh heat-conducting plate 10 achieves high-temperature preheating of the oil. Therefore, when the delivery pump 9 sends the oil into the inner cavity 3, the oil already has the corresponding temperature, which is beneficial for subsequent distillation. The ceramic ring 19 is set to provide heat insulation and prevent the cylindrical heat-conducting plate 6, which is outside the heating coil 5, from being directly heated and reducing its service life.

[0029] Example 2:

[0030] like Figure 1 , Figure 2 As shown, the tank 1 is equipped with a pressure sensor 12 and a temperature sensor 13. The signal input terminals of the pressure sensor 12 and the temperature sensor 13 are both located at the top of the inner cavity 3. This design can detect the pressure and temperature inside the tank 1 in real time, ensuring the normal operation of the equipment and facilitating data control.

[0031] In this implementation case, as a common accessory for distillation tanks, the purpose is to acquire data to ensure the effectiveness of use. There are no restrictions on the selection and installation position of pressure sensor 12 and temperature sensor 13, and more monitoring devices can be installed on tank 1 according to specific circumstances.

[0032] Example 3:

[0033] like Figure 1 , Figure 2 As shown, a vacuum pump 14 is installed on the top of the outer side of the tank 1. The input end of the vacuum pump 14 is located at the top of the inner cavity 3. A waterproof vent valve 15 is installed on the input end of the vacuum pump 14. With this design, the vacuum pump 14 can draw gas from the inner cavity 3 to achieve the purpose of pressure control, and the waterproof vent valve 15 can prevent water vapor from leaking out.

[0034] In this implementation case, the vacuum pump 14 is used as a pressure relief tool. Pressure relief valves are also common, but the vacuum pump 14 provides faster and more direct pressure relief and has a better pressure relief effect. In fact, the pressure relief method can be selected according to the specific usage requirements.

[0035] Example 4:

[0036] like Figure 1 , Figure 2As shown, both the tank 1 and the preheating box 7 are connected to the bottom with support legs 16, and the bottom of the support legs 16 is connected to an adjustable support base 17. This design facilitates the maintenance and replacement of the transfer pump 9 and the heater 4. The installation of the adjustable support base 17 allows for height adaptation according to the usage environment, ensuring the best working effect.

[0037] In this implementation case, the support leg 16 ensures the installation space and replacement and maintenance space for the delivery pump 9 and the heater 4. The specific required height of the support leg 16 is set according to the requirements. The adjustable support base 17 enables the entire device to have a height adjustment function, which is conducive to docking with equipment of different heights and to installing other equipment on the underside of the adjustable support base 17, so as to make full use of the equipment installation space and save land resources.

[0038] Embodiment 5:

[0039] like Figure 2 As shown, a connecting plate 18 is detachably connected between the perforated heat-conducting plate 10 and the cylindrical heat-conducting plate 6. This design allows for the disassembly of the perforated heat-conducting plate 10, the cylindrical heat-conducting plate 6, and the preheating box 7.

[0040] In this implementation example, the connecting plate 18 can be made of a metal plate with thermal conductivity and connected with screws. In fact, the connection structure between the mesh heat-conducting plate 10 and the cylindrical heat-conducting plate 6 can also be considered depending on the specific situation.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A waste mineral oil distillation tank with a preheating mechanism, comprising a tank body (1), characterized in that: The tank (1) is provided with a cavity (2) and an inner cavity (3). A heater (4) is installed at the bottom of the tank (1). The output end of the heater (4) is connected to a heating coil (5). The heating coil (5) is placed inside the cavity (2). The heating coil (5) is coiled around the outside of the inner cavity (3). A cylindrical heat-conducting plate (6) is installed inside the cavity (2). The cylindrical heat-conducting plate (6) is placed outside the heating coil (5). A preheating box (7) is installed on the outside of the tank (1), a preheating pipe (8) is installed inside the preheating box (7), a delivery pump (9) is installed between the preheating box (7) and the tank (1), a perforated heat-conducting plate (10) is installed at the bottom inside the preheating box (7), and the perforated heat-conducting plate (10) is connected to the cylindrical heat-conducting plate (6); The input end of the preheating box (7) is equipped with a filter screen (11), and the inner ring of the cylindrical heat-conducting plate (6) is equipped with a ceramic ring (19).

2. A waste mineral oil distillation tank with a preheating mechanism according to claim 1, characterized in that: The tank (1) is equipped with a pressure sensor (12) and a temperature sensor (13), and the signal input terminals of the pressure sensor (12) and the temperature sensor (13) are both located at the top of the inner cavity (3).

3. A waste mineral oil distillation tank with a preheating mechanism according to claim 2, characterized in that: A vacuum pump (14) is installed on the top of the outer side of the tank (1). The input end of the vacuum pump (14) is located on the top of the inner cavity (3). A waterproof ventilation valve (15) is installed on the input end of the vacuum pump (14).

4. A waste mineral oil distillation tank with a preheating mechanism according to claim 3, characterized in that: Both the tank (1) and the preheating box (7) are connected to the bottom of the support legs (16), and the bottom of the support legs (16) is connected to the adjustable support base (17).

5. A waste mineral oil distillation tank with a preheating mechanism according to claim 4, characterized in that: A connecting plate (18) is detachably connected between the perforated heat-conducting plate (10) and the cylindrical heat-conducting plate (6).

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