Vegetable oil plasticizer removing device

Abstract

The utility model discloses a plant oil plasticizer removing device. The device comprises a tank body, an oil inlet and an oil outlet are formed in the upper end and the lower end of the tank body respectively, a valve is arranged on the outer side of the oil outlet, one side of the tank body is connected with an inlet of an oil pump, an outlet of the oil pump is connected with a heater, the heater is connected with an adsorption box, and an adsorption assembly is arranged in the adsorption box and connected with the tank body. According to the utility model, the heater is arranged between the tank body and the adsorption box and is used for heating vegetable oil, so that the temperature of the vegetable oil entering the adsorption box is increased, collision and adsorption between the adsorption filter screen and grease molecules are facilitated, and the removal efficiency of a plasticizer is improved; and hot water provided by the hot water tank is used as an intermediate medium for heating, so that the vegetable oil is prevented from being in contact with the high-temperature heating resistor, and the influence on the quality of the vegetable oil is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vegetable oil processing technology, specifically to a device for removing plasticizers from vegetable oil. Background Technology

[0002] During vegetable oil production, raw materials may be contaminated, or equipment such as pipes, rubber seals, and plastic conveying devices may contain plasticizers. With prolonged exposure and under certain conditions, such as high temperatures or immersion in oil, plasticizers can migrate into the vegetable oil. Long-term ingestion of plasticizers can pose health risks. To reduce the plasticizer content in vegetable oils, besides optimizing production processes and controlling packaging materials, adsorption treatment is a common method. For example, activated carbon and diatomaceous earth can be used to treat the vegetable oil, adsorbing the plasticizers. The adsorbents are then separated by filtration, reducing the plasticizer content. Existing plasticizer removal devices generally operate at room temperature, resulting in relatively low adsorption efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for removing plasticizers from vegetable oils.

[0004] To achieve the above objectives, this utility model provides a vegetable oil plasticizer removal device, including a tank. The upper and lower ends of the tank are respectively provided with an oil inlet and an oil outlet. A valve is provided on the outside of the oil outlet. One side of the tank is connected to the inlet of an oil pump. The outlet of the oil pump is connected to a heater. The heater is connected to an adsorption box. An adsorption component is provided in the adsorption box and is connected to the tank.

[0005] Furthermore, the heater is a shell-and-tube liquid heat exchanger.

[0006] Furthermore, the inlet of the liquid heat exchanger is connected to the hot water tank via a water pump, and its outlet is connected to the hot water tank via a return pipe. The hot water tank is equipped with a heating resistor and a temperature sensor, both of which are connected to the control box.

[0007] Furthermore, the hot water tank is equipped with a water level sensor, which is connected to the control box. The hot water tank is connected to a water supply pipe, which is equipped with a water supply solenoid valve, which is connected to the control box.

[0008] Furthermore, an oil inlet valve is connected between the inlet of the oil pump and the tank body, and an oil outlet valve is connected between its outlet and the heater.

[0009] Furthermore, the water pump is connected to the hot water tank via an inlet valve, and its outlet is connected to the heater via an outlet valve. A return valve is also provided on the return pipe.

[0010] Furthermore, a heating inlet control valve is connected between the heater and the oil outlet valve, and a heating outlet control valve is connected between the heater and the adsorption box. A bypass valve is connected in parallel between the two ends of the heating inlet control valve and the heating outlet control valve.

[0011] Furthermore, the adsorption assembly includes a frame fixed inside the adsorption box and an adsorption filter screen that is detachably fixed to the frame.

[0012] Furthermore, the adsorption filter is V-shaped.

[0013] Beneficial effects: This utility model uses a heater installed between the tank and the adsorption box to heat the vegetable oil, thereby increasing the temperature of the vegetable oil entering the adsorption box. This facilitates the collision and adsorption between the adsorption filter and the oil molecules, improving the removal efficiency of plasticizers. The use of a hot water tank as an intermediate medium for heating ensures that the vegetable oil does not come into contact with the high-temperature heating resistor, thus avoiding any impact on the quality of the vegetable oil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the vegetable oil plasticizer removal device according to an embodiment of the present invention. Detailed Implementation

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0016] like Figure 1 As shown in the figure, this utility model embodiment provides a vegetable oil plasticizer removal device, including a tank 1. The tank 1 has an oil inlet 2 and an oil outlet 3 at its upper and lower ends, respectively. A valve 4 is provided on the outside of the oil outlet 3. Vegetable oil can be added into the tank 1 through the oil inlet 2, and then undergoes circulation and adsorption treatment. After the circulation and adsorption treatment is completed, the valve 4 is opened to discharge the vegetable oil to a storage container or other equipment. One side of the tank 1 is connected to the inlet of an oil pump 5, and the outlet of the oil pump 5 is connected to a heater 6. The heater 6 is connected to an adsorption box 7, which contains an adsorption assembly. The adsorption box 7 is connected to the tank 1. The oil pump 5 can extract the vegetable oil from the tank 1 and transport it to the heater 6 for heating to a preset temperature, such as 50°C, and then transport it to the adsorption box 7, where the adsorption assembly removes the plasticizer from the vegetable oil before returning it to the tank 1.

[0017] The heater 6 in this embodiment of the invention is preferably a shell-and-tube liquid heat exchanger. The inlet of the heater 6 is connected to the hot water tank 9 via a water pump 8, and the outlet of the heater 6 is also connected to the hot water tank 9 via a return pipe. A heating resistor 10 and a temperature sensor 11 are installed inside the hot water tank 9, both connected to a control box 12. The control box 12 can be fixed at intervals on the outside of the hot water tank 9 using a mounting bracket. The temperature sensor 11 collects the water temperature signal inside the hot water tank 9 and feeds the collected signal back to the control box 12. When the water temperature signal inside the hot water tank 9 is lower than the set lower limit of the water temperature threshold, the control box 12 controls the heating resistor 10 to operate, thereby heating the water inside the hot water tank 9 and maintaining the water temperature within the set water temperature threshold range. The water pump 8 delivers the hot water from the hot water tank 9 to the heater 6 to exchange heat with the flowing vegetable oil, thus heating the vegetable oil before it enters the adsorption tank 7, improving the adsorption effect of the plasticizer.

[0018] To prevent the water level in the hot water tank 9 from dropping too low, a water level sensor 13 is installed on the hot water tank 9. The water level sensor 13 is connected to the control box 12. The hot water tank 9 is connected to a water supply pipe, and a water supply solenoid valve 14 is installed on the water supply pipe, which is also connected to the control box 12. The water supply pipe is used to connect to a municipal tap water pipe or other water source. The water level sensor 13 collects the water level signal in the hot water tank 9 and feeds the signal back to the control box 12. When the water level in the hot water tank 9 is lower than the set water level threshold range, the control box 12 controls the water supply solenoid valve 14 to open, thereby replenishing water to the hot water tank 9 and maintaining the water level in the hot water tank 9 within the set water level threshold range.

[0019] To facilitate real-time maintenance, an oil inlet valve 15 is connected between the inlet of oil pump 5 and tank 1, and an oil outlet valve 16 is connected between the outlet of oil pump 5 and heater 6. An inlet valve 17 is connected between the inlet of water pump 8 and hot water tank 9, and an outlet valve 18 is connected between the outlet of water pump 8 and heater 6. A return valve 19 is provided on the return water pipe.

[0020] In order to enable room temperature adsorption even when heater 6 or hot water tank 9 malfunctions, it is preferable to install a heating inlet control valve 20 between heater 6 and oil outlet valve 16, and a heating outlet control valve 21 between heater 6 and adsorption tank 7. In addition, a bypass valve 22 is connected in parallel between the two ends of heating inlet control valve 20 and heating outlet control valve 21. After closing heating inlet control valve 20 and heating outlet control valve 21 and opening bypass valve 22, room temperature adsorption can be performed normally.

[0021] The adsorption assembly of this embodiment includes a frame 23 fixed inside the adsorption box 7 and an adsorption filter 24 detachably fixed to the frame 23. The frame 23 is a frame structure that does not affect the passage of vegetable oil. The adsorption filter can be made of activated carbon, preferably V-shaped, to increase the adsorption effect by increasing the surface area of ​​the adsorption filter. The adsorption box 7 is equipped with an inspection door. After the set time has elapsed, the inspection door can be opened to replace the adsorption filter 24.

[0022] The above description is merely a preferred embodiment of this utility model. It should be noted that for those skilled in the art, other parts not specifically described are existing technology or common knowledge. Several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A device for removing plasticizers from vegetable oil, characterized in that, The device includes a tank body, with an oil inlet and an oil outlet at the top and bottom ends, respectively. A valve is provided on the outside of the oil outlet. One side of the tank body is connected to the inlet of an oil pump, and the outlet of the oil pump is connected to a heater. The heater is connected to an adsorption box, and an adsorption assembly is provided inside the adsorption box and connected to the tank body.

2. The vegetable oil plasticizer removal device according to claim 1, characterized in that, The heater is a shell-and-tube liquid heat exchanger.

3. The vegetable oil plasticizer removal device according to claim 2, characterized in that, The inlet of the liquid heat exchanger is connected to the hot water tank via a water pump, and its outlet is connected to the hot water tank via a return pipe. The hot water tank is equipped with a heating resistor and a temperature sensor, both of which are connected to the control box.

4. The vegetable oil plasticizer removal device according to claim 3, characterized in that, The hot water tank is equipped with a water level sensor, which is connected to the control box. The hot water tank is connected to a water supply pipe, which is equipped with a water supply solenoid valve, which is connected to the control box.

5. The vegetable oil plasticizer removal device according to claim 1, characterized in that, The oil pump has an inlet valve connected to the tank and an outlet valve connected to the heater.

6. The vegetable oil plasticizer removal device according to claim 3, characterized in that, The water pump is connected to the hot water tank by an inlet valve, and its outlet is connected to the heater by an outlet valve. The return pipe is equipped with a return valve.

7. The vegetable oil plasticizer removal device according to claim 5, characterized in that, A heating inlet control valve is connected between the heater and the oil outlet valve, and a heating outlet control valve is connected between the heater and the adsorption tank. A bypass valve is connected in parallel between the two ends of the heating inlet control valve and the heating outlet control valve.

8. The vegetable oil plasticizer removal device according to claim 1, characterized in that, The adsorption assembly includes a frame fixed inside the adsorption box and an adsorption filter screen that can be detachably fixed to the frame.

9. The vegetable oil plasticizer removal device according to claim 8, characterized in that, The adsorption filter is V-shaped.

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