Heating tank for producing bio-jet kerosene from waste cooking oil

By introducing stirring and temperature control components into waste cooking oil processing equipment, dynamic turbulence and intelligent temperature control are formed, solving the problems of uneven heating and high energy consumption, and realizing efficient and uniform heating and low-energy production of bio-jet fuel.

CN224271193UActive Publication Date: 2026-05-26ZHEJIANG FUZE NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FUZE NEW ENERGY TECHNOLOGY CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-26

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Abstract

This utility model discloses a heating tank for producing bio-jet fuel feedstock from waste cooking oil, relating to the field of waste cooking oil processing technology. The tank includes a tank body with symmetrically fixed support frames at the bottom and symmetrically fixed oil filling hoppers at the top. A motor is fixedly connected to the outside of the tank body, and an oil drain pipe is located at the bottom. An electromagnetic valve for control is installed inside the oil drain pipe. A stirring mechanism is located inside the tank body, comprising a stirring component and a temperature control component, which work together. This heating tank for producing bio-jet fuel feedstock from waste cooking oil enables efficient and uniform heating, intelligent temperature control, and dynamic turbulent stirring to improve oil reaction efficiency, reduce energy consumption, and meet the process requirements of bio-jet fuel feedstock production, ensuring uniform heating.
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Description

Technical Field

[0001] This utility model relates to the field of waste cooking oil processing technology, and in particular to a heating tank for producing biofuel feedstock from waste cooking oil. Background Technology

[0002] The indiscriminate discharge of waste cooking oil (such as waste cooking oil and waste frying oil) not only pollutes the environment but also wastes resources. If it can be efficiently treated and converted into biofuel, it can reduce dependence on fossil energy and achieve resource recycling.

[0003] Existing waste cooking oil processing equipment suffers from problems such as uneven heating, high energy consumption, and low reaction efficiency, which restricts its industrial application. Currently, waste cooking oil processing requires heating to a certain temperature and adding a catalyst for reaction, but traditional heating tanks mostly use a single stirring paddle or static heating method.

[0004] Based on the aforementioned technologies, the applicant believes that existing static heating methods result in poor oil fluidity, local overheating and carbonization, which affects the efficiency of subsequent catalytic reactions. In addition, the lack of an intelligent temperature control system means that the heating process relies on manual adjustment, leading to large temperature fluctuations and high energy consumption. Although some equipment is equipped with a stirring mechanism, its simple structure fails to create effective turbulence, resulting in insufficient mixing of oil and additives and incomplete reactions. To address these issues, we have introduced a heating tank for producing bio-jet fuel feedstock using waste edible oil. Utility Model Content

[0005] This utility model discloses a heating tank for producing bio-jet fuel from waste cooking oil. It aims to solve the problems caused by static heating, which results in poor oil fluidity, local overheating and carbonization, affecting the efficiency of subsequent catalytic reactions. In addition, the lack of an intelligent temperature control system means that the heating process relies on manual adjustment, leading to large temperature fluctuations and high energy consumption. Although some equipment is equipped with a stirring mechanism, its simple structure fails to create effective turbulence, resulting in insufficient mixing of oil and additives.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heating tank for producing bio-jet kerosene from waste cooking oil includes a tank body. A support frame is symmetrically and fixedly connected to the bottom of the tank body, and an oil filling hopper is symmetrically and fixedly connected to the top of the tank body. A motor is fixedly connected to the outside of the tank body. An oil drain pipe is located at the bottom of the tank body, and a solenoid valve for control is installed inside the oil drain pipe. A stirring mechanism is located inside the tank body. The stirring mechanism includes a stirring component and a temperature control component, which work together. The stirring component includes rotating rollers, which are symmetrically and rotatably connected inside the tank body. Two annular rings are equidistantly spaced on the outer sides of the two rotating rollers. The annular groove is inclined. Slide rods are symmetrically fixedly connected to both sides of the tank body between the two rotating rollers. Slide plates are equidistantly connected to the outer sides of the two slide rods on the same side. A connecting frame is fixedly connected between the two slide plates on the same side. Baffles are equidistantly fixedly connected inside the connecting frame. A sliding column is slidably connected inside the annular groove. The sliding column is fixedly connected to the slide plate. The output end of the motor is fixedly connected to one of the rotating rollers. The ends of the two rotating rollers away from the motor extend to the outer side of the tank body and are fixedly connected to pulleys. The two pulleys are connected by belt drive.

[0008] This device can achieve efficient and uniform heating, intelligent temperature control and dynamic turbulence stirring to improve the reaction efficiency of oil, reduce energy consumption, and meet the process requirements of bio-jet fuel production, ensuring uniform heating.

[0009] In a preferred embodiment, the temperature control component includes an electric heating element arranged spirally along the inner wall of the tank and circulated with heat transfer oil, and three PT100 temperature sensors located at the upper, middle, and lower parts of the tank.

[0010] The temperature control component uses spirally arranged electric heating tubes, combined with heat transfer oil for indirect heating, avoiding direct contact that could lead to oil deterioration; three PT100 temperature sensors (upper, middle, and lower) are installed inside the tank to monitor the oil temperature distribution in real time, ensuring precise and controllable heating process and reducing energy waste.

[0011] In a preferred embodiment, a protective cover is fixedly connected to the outside of the motor, and heat dissipation slots are equidistantly provided inside the protective cover.

[0012] A protective cover is installed on the outside of the motor to prevent external contaminants from entering. At the same time, the heat dissipation slots enhance the motor's heat dissipation performance, extend the service life of the equipment, and ensure operational stability.

[0013] In a preferred embodiment, the front of the tank is provided with an observation window, which is made of a transparent material.

[0014] A transparent observation window is provided on the front of the tank to facilitate real-time monitoring of the internal oil status and agitation, reducing the frequency of manual opening for inspection and improving operational safety.

[0015] In a preferred embodiment, a controller is fixedly connected to the outside of the tank, on the side closest to the motor.

[0016] The controller integrates the control motor, electric heating element and temperature sensor to realize automatic adjustment of stirring speed and heating temperature, thereby improving production efficiency and reaction consistency.

[0017] In a preferred embodiment, the motor, electric heating element, and temperature sensor are all electrically connected to the controller.

[0018] The motor, electric heating element, and temperature sensor are all electrically connected to the controller to form a closed-loop temperature control system. This system can dynamically adjust the heating power and stirring intensity according to changes in oil temperature, optimizing energy consumption and preventing overheating risks.

[0019] The heating tank for producing bio-jet kerosene from waste cooking oil provided by this utility model has the following advantages:

[0020] Firstly, this device can achieve efficient and uniform heating, intelligent temperature control, and dynamic turbulent stirring to improve the reaction efficiency of oil, reduce energy consumption, and meet the process requirements of bio-jet fuel production, ensuring uniform heating.

[0021] Secondly, a protective cover is installed on the outside of the motor to prevent external contaminants from entering. Simultaneously, heat dissipation grooves enhance the motor's heat dissipation performance, extending equipment lifespan and ensuring operational stability. A transparent observation window is installed on the front of the tank for real-time monitoring of the internal oil status and agitation, reducing the frequency of manual opening for inspection and improving operational safety. The controller integrates the control of the motor, electric heating element, and temperature sensor, enabling automated adjustment of agitation speed and heating temperature, improving production efficiency and reaction consistency. The motor, electric heating element, and temperature sensor are all electrically connected to the controller, forming a closed-loop temperature control system that dynamically adjusts heating power and agitation intensity based on oil temperature changes, optimizing energy consumption and preventing overheating risks. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the heating tank for producing bio-jet fuel from waste cooking oil, as proposed in this utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram of the heating tank for producing bio-jet fuel from waste cooking oil, as proposed in this utility model.

[0024] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the heating tank for producing bio-jet fuel from waste cooking oil, as proposed in this utility model.

[0025] Figure 4This is a three-dimensional schematic diagram of the stirring mechanism of the heating tank for producing bio-jet fuel from waste cooking oil, as proposed in this utility model.

[0026] Figure 5 This is a three-dimensional cross-sectional view of the heating tank for producing bio-jet fuel from waste cooking oil, as proposed in this utility model.

[0027] In the attached diagram: 1. Tank body; 2. Support frame; 3. Oil filling hopper; 4. Motor; 51. Rotating roller; 52. Annular groove; 53. Slide rod; 54. Slide plate; 55. Connecting frame; 56. Baffle plate; 57. Sliding column; 58. Pulley; 6. Electric heating tube; 7. Temperature sensor; 8. Protective cover; 9. Heat dissipation groove; 10. Observation window; 11. Oil drain pipe; 12. Controller. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The heating tank disclosed in this utility model for producing bio-jet fuel from waste cooking oil is mainly used in waste cooking oil processing scenarios.

[0030] Reference Figures 1-5A heating tank for producing bio-jet kerosene from waste cooking oil includes a tank body 1. A support frame 2 is symmetrically and fixedly connected to the bottom of the tank body 1. An oil filling hopper 3 is symmetrically and fixedly connected to the top of the tank body 1. A motor 4 is fixedly connected to the outside of the tank body 1. An oil drain pipe 11 is provided at the bottom of the tank body 1. An electromagnetic valve for control is installed inside the oil drain pipe 11. A stirring mechanism is provided inside the tank body 1, including a stirring component and a temperature control component. The stirring component and the temperature control component work together. The stirring component includes rotating rollers 51, which are symmetrically and rotatably connected inside the tank body 1. Annular grooves 52 are equally spaced on the outer sides of both rotating rollers 51, and the annular grooves 52 are inclined. Sliding rods 53 are symmetrically and fixedly connected to both sides of the tank body 1 between the two rotating rollers 51. Sliding plates 54 are equidistantly connected to the outer sides of the two sliding rods 53 on the same side. A connecting frame 55 is fixedly connected between the two sliding plates 54 on the same side. Inside the connecting frame 55, baffles 56 are fixedly connected at equal intervals. Inside the annular groove 52, sliding columns 57 are slidably connected. The sliding columns 57 are fixedly connected to the slide plate 54. The output end of the motor 4 is fixedly connected to one of the rotating rollers 51. The ends of the two rotating rollers 51 away from the motor 4 extend to the outside of the tank body 1 and are fixedly connected to pulleys 58. The two pulleys 58 are connected by belt drive. The temperature control component includes an electric heating tube 6, which is spirally arranged along the inner wall of the tank body 1 and circulates heat transfer oil inside. There are three PT100 temperature sensors 7 at the top, middle and bottom of the tank body 1.

[0031] In this embodiment: the electric heating tube 6 is activated and heats the oil; simultaneously, the motor 4 drives the rotating roller 51 to rotate, which in turn drives another rotating roller 51 to rotate synchronously through the pulley 58, causing the sliding column 57 in the annular groove 52 to drive the slide plate 54 to slide left and right along the slide rod 53, and the baffle plate 56 on the connecting frame 55 moves back and forth accordingly, forming dynamic turbulence and promoting oil mixing; the temperature sensor 7 monitors the oil temperature at different depths in real time and feeds it back to the controller 12 to adjust the heating power and stirring speed, which can achieve efficient and uniform heating, intelligent temperature control and dynamic turbulence stirring, so as to improve the reaction efficiency of oil, reduce energy consumption, and meet the process requirements of bio-jet fuel production, ensuring uniform heating.

[0032] The above technical solutions suffer from several drawbacks. Firstly, static heating leads to poor oil flow, localized overheating and carbonization, affecting subsequent catalytic reaction efficiency. Secondly, the lack of an intelligent temperature control system necessitates manual adjustment during heating, resulting in large temperature fluctuations and high energy consumption. Thirdly, while some equipment includes stirring mechanisms, their simple structure fails to create effective turbulence, leading to insufficient mixing of the oil and additives. To address these issues, the specific operation is as follows:

[0033] Reference Figures 1-5In a preferred embodiment, a protective cover 8 is fixedly connected to the outside of the motor 4, and heat dissipation grooves 9 are equidistantly arranged inside the protective cover 8. An observation window 10 is provided on the front of the tank body 1, and the observation window 10 is made of transparent material. A controller 12 is fixedly connected to the outside of the tank body 1, on the side closest to the motor 4. The motor 4, the electric heating tube 6, and the temperature sensor 7 are all electrically connected to the controller 12.

[0034] In this embodiment, a protective cover 8 is installed on the outside of the motor 4 to prevent external contaminants from entering. Simultaneously, a heat dissipation groove 9 enhances the heat dissipation performance of the motor 4, extending the equipment's service life and ensuring operational stability. A transparent observation window 10 is provided on the front of the tank 1 for real-time monitoring of the internal oil status and stirring conditions, reducing the frequency of manual opening for inspection and improving operational safety. The controller 12 integrates the control of the motor 4, the electric heating element 6, and the temperature sensor 7, enabling automated adjustment of stirring speed and heating temperature, improving production efficiency and reaction consistency. The motor 4, the electric heating element 6, and the temperature sensor 7 are all electrically connected to the controller 12, forming a closed-loop temperature control system. This system can dynamically adjust the heating power and stirring intensity according to changes in oil temperature, optimizing energy consumption and preventing overheating risks.

[0035] Working principle: During operation, waste cooking oil enters tank 1 through oil filling hopper 3. After the additive is added, electric heating tube 6 is activated to heat the oil. At the same time, motor 4 drives rotating roller 51 to rotate, which drives another rotating roller 51 to rotate synchronously through pulley 58. This causes sliding column 57 in annular groove 52 to drive slide plate 54 to slide left and right along slide rod 53. The baffle 56 on connecting frame 55 moves back and forth, forming dynamic turbulence and promoting oil mixing. Temperature sensor 7 monitors the oil temperature at different depths in real time and feeds it back to controller 12 to adjust heating power and stirring speed to ensure uniform heating. After the reaction is completed, solenoid valve controls oil drain pipe 11 to discharge the treated oil.

[0036] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A heating tank for producing bio-jet fuel from waste cooking oil, comprising a tank body (1), characterized in that: The bottom of the tank (1) is symmetrically fixedly connected to a support frame (2), the top of the tank (1) is symmetrically fixedly connected to an oil filling hopper (3), the outside of the tank (1) is fixedly connected to a motor (4), the bottom of the tank (1) is provided with an oil drain pipe (11), the inside of the oil drain pipe (11) is provided with a solenoid valve for controlling the switch, the inside of the tank (1) is provided with a stirring mechanism, the stirring mechanism includes a stirring component and a temperature control component, the stirring component and the temperature control component are used in cooperation with each other; The stirring assembly includes rotating rollers (51), which are symmetrically rotatably connected inside the tank (1). Annular grooves (52) are equidistantly provided on the outer sides of both rotating rollers (51), and these grooves (52) are inclined. Slide rods (53) are symmetrically fixedly connected on both sides of the tank (1) between the two rotating rollers (51). Slide plates (54) are equidistantly slidably connected to the outer sides of the two slide rods (53) on the same side. A connecting rod is fixedly connected between the two slide plates (54) on the same side. The connecting frame (55) has baffles (56) fixedly connected at equal intervals inside. The annular groove (52) has sliding columns (57) slidably connected inside. The sliding columns (57) are fixedly connected to the slide plate (54). The output end of the motor (4) is fixedly connected to one of the rotating rollers (51). The ends of the two rotating rollers (51) away from the motor (4) extend to the outside of the tank body (1) and are fixedly connected to pulleys (58). The two pulleys (58) are connected by belt drive.

2. The heating tank for producing bio-jet fuel from waste edible oil according to claim 1, characterized in that: The temperature control component includes an electric heating tube (6), which is spirally arranged along the inner wall of the tank (1) and has heat-conducting oil flowing through it. The tank (1) has three PT100 temperature sensors (7) at the top, middle and bottom.

3. The heating tank for producing bio-jet fuel from waste edible oil according to claim 1, characterized in that: A protective cover (8) is fixedly connected to the outside of the motor (4), and heat dissipation slots (9) are provided at equal intervals inside the protective cover (8).

4. The heating tank for producing bio-jet fuel from waste edible oil according to claim 1, characterized in that: The front of the tank (1) is provided with an observation window (10), which is made of transparent material.

5. The heating tank for producing bio-jet fuel from waste edible oil according to claim 1, characterized in that: A controller (12) is fixedly connected to the outside of the tank (1) and on the side closer to the motor (4).

6. The heating tank for producing bio-jet fuel from waste edible oil according to claim 1, characterized in that: The motor (4), electric heating tube (6) and temperature sensor (7) are all electrically connected to the controller (12).