Constant temperature structure of aromatic hydrocarbon solvent distillation equipment

Abstract

The utility model discloses a constant-temperature structure of aromatic hydrocarbon solvent distillation equipment, which relates to the technical field of aromatic hydrocarbon extraction and comprises a base, a heating seat fixedly connected to the upper end of the base, a constant-temperature tank fixedly connected to the upper end of the heating seat, a distillation retort arranged inside the constant-temperature tank, and a fixing frame fixedly connected to the outer surface of the distillation retort. The fixing frame is fixedly connected with the inner wall of the constant-temperature tank, a distillation outlet is formed in the upper end of the distillation tank, a feeding port is formed in the side face of the distillation tank, a liquid level control mechanism is arranged at the feeding port, a heating component and a constant-temperature module are arranged between the constant-temperature tank and the distillation tank, and a moving unit is arranged at the lower end of the base. The aromatic hydrocarbon solvent is heated and distilled through the heating component, heating is uniform, the aromatic hydrocarbon solvent is subjected to constant-temperature distillation through the constant-temperature module, and the distillation efficiency and the distillation effect are improved; and through the liquid level control mechanism, when the liquid level is low, the aromatic solvent can be automatically added, so that the influence on distillation caused by unknown distillation of the aromatic solvent or too little aromatic solvent is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the extraction technical field of aromatic hydrocarbon, specifically is a kind of constant temperature structure of aromatic hydrocarbon solvent distillation equipment. BACKGROUND

[0002] Aromatic hydrocarbon extraction distillation is also called extractive distillation, which is a process technology for separating aromatic hydrocarbons and non-aromatic hydrocarbons using polar extractants. Since the boiling points of aromatic hydrocarbons and non-aromatic hydrocarbons in catalytic reforming oil or pyrolysis gasoline are close and form azeotropes, it is necessary to control the temperature during distillation to maintain the temperature inside the distillation kettle at a constant temperature to obtain high-purity aromatic hydrocarbons.

[0003] However, in the prior art, the temperature is not easy to control during extraction of aromatic hydrocarbons, and constant temperature distillation cannot be achieved, resulting in long distillation time and low work efficiency. In addition, the liquid level of the aromatic hydrocarbon solvent cannot be observed during distillation, and the distillation process cannot be monitored in a timely manner.

[0004] Therefore, the present application provides a constant temperature structure of aromatic hydrocarbon solvent distillation equipment to eliminate the drawbacks of existing devices. SUMMARY

[0005] The utility model aims at providing a constant temperature structure of aromatic hydrocarbon solvent distillation equipment to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A constant temperature structure of aromatic hydrocarbon solvent distillation equipment, comprising: a base, the upper end of the base is fixedly connected with a heating seat, the upper end of the heating seat is fixedly connected with a constant temperature tank, the inside of the constant temperature tank is provided with a distillation tank, the outer surface of the distillation tank is fixedly connected with a fixed frame, the fixed frame is fixedly connected with the inner wall of the constant temperature tank, the upper end of the distillation tank is provided with a distillation outlet, the side of the distillation tank is provided with a charging port, the charging port is provided with a liquid level control mechanism, the constant temperature tank and the distillation tank are provided with a heating component and a constant temperature module, the lower end of the base is provided with a moving unit.

[0008] Based on the above technical scheme, the utility model also provides the following optional technical scheme:

[0009] In an alternative: the liquid level control mechanism includes a T-shaped connecting pipe, one end of the T-shaped connecting pipe is fixedly connected with the feeding opening, the other end of the T-shaped connecting pipe is fixedly connected with a limiting block, one end of the T-shaped connecting pipe close to the feeding opening is fixedly connected with a sealing ring, a sliding block is slidably connected in the T-shaped connecting pipe, one end of the sliding block close to the sealing ring is fixedly connected with a sealing block, the other end of the sliding block is fixedly connected with a connecting rod, the connecting rod away from the sliding block is rotatably connected with a sliding rod, the output end of the sliding rod is rotatably connected with an L-shaped rotating rod, the L-shaped rotating rod is rotatably connected with the limiting block, and the L-shaped rotating rod away from the sliding rod is fixedly connected with a floating ball.

[0010] In an alternative: the heating component includes a spiral electric heating pipe, the spiral electric heating pipe is arranged between the constant-temperature tank and the distillation tank, and two ends of the spiral electric heating pipe are fixedly connected with the heating seat; and constant-temperature oil is arranged between the constant-temperature tank and the distillation tank.

[0011] In an alternative: the moving unit includes four telescopic rods, the four telescopic rods are fixedly connected in the grooves at the lower end of the base, and the output ends of the telescopic rods are fixedly connected with the moving wheels.

[0012] In an alternative: the constant-temperature module includes a temperature sensor, the temperature sensor is fixedly connected to the inner wall of the constant-temperature tank, the surface of the heating seat is fixedly connected with a controller, and the temperature sensor is electrically connected with the controller.

[0013] In an alternative: the constant-temperature oil is paraffin oil.

[0014] In an alternative: the upper end of the constant-temperature tank is provided with an oil inlet, and the lower end of the constant-temperature tank is provided with an oil outlet.

[0015] In an alternative: the four telescopic rods are evenly arranged at the lower end of the base.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a spiral electric heating pipe is heated to constant-temperature oil, and the constant-temperature oil is used as medium and indirectly heated distillation for aromatic hydrocarbon solvent, and the heating is even, and through the cooperation of temperature sensor and controller, the aromatic hydrocarbon solvent is carried out constant-temperature distillation, and the distillation efficiency and distillation effect are increased, and the liquid level control mechanism is added, when the liquid level is low, the aromatic hydrocarbon solvent can be automatically added, the situation that the aromatic hydrocarbon solvent distillation is affected by not knowing that the aromatic hydrocarbon solvent distillation is finished or the aromatic hydrocarbon solvent is too little is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2The sectional view of the utility model.

[0020] Figure 3 The structure diagram of the liquid level control mechanism of the utility model.

[0021] The figure mark annotation: 100, base, 200, heating seat, 300, constant temperature tank, 400, distillation tank, 401, fixed frame, 402, distillation outlet, 403, feeding opening, 501, T-shaped connecting pipe, 502, limit block, 503, sealing ring, 504, sliding block, 505, sealing block, 506, connecting rod, 507, sliding rod, 508, L-shaped rotating rod, 509, floating ball, 601, spiral electric heating pipe, 602, constant temperature oil, 701, telescopic rod, 702, moving wheel, 801, temperature sensor, 802, controller, 901, oil filling port, 902, oil outlet. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples.

[0023] In one embodiment, as shown in Figures 1-3 A constant temperature structure of an aromatic hydrocarbon solvent distillation device, including base 100, the upper end of the base 100 is fixedly connected with heating seat 200, the upper end of the heating seat 200 is fixedly connected with constant temperature tank 300, the inside of the constant temperature tank 300 is equipped with distillation tank 400, the outer surface of the distillation tank 400 is fixedly connected with fixed frame 401, the fixed frame 401 is fixedly connected with the inner wall of constant temperature tank 300, the upper end of the distillation tank 400 is equipped with distillation outlet 402, the side of the distillation tank 400 is equipped with feeding opening 403, the feeding opening 403 is equipped with liquid level control mechanism, heating component and constant temperature module are arranged between the constant temperature tank 300 and the distillation tank 400, the lower end of the base 100 is equipped with moving unit, aromatic hydrocarbon solvent is added into the distillation tank 400 through the feeding opening 403, the heating component heats the distillation tank 400, the constant temperature module controls the temperature of heating to be constant, increases the distillation efficiency and distillation effect, when the liquid level is low, the aromatic hydrocarbon solvent can be automatically added through the liquid level control mechanism, the situation that the distillation is affected due to not knowing that the aromatic hydrocarbon solvent is distilled or the aromatic hydrocarbon solvent is too little is avoided.

[0024] In the embodiment, as shown in Figure 3As shown, the liquid level control mechanism includes a T-shaped connecting pipe 501. One horizontal end of the T-shaped connecting pipe 501 is fixedly connected to the feed port 403, and the other horizontal end of the T-shaped connecting pipe 501 is fixedly connected to a limiting block 502. A sealing ring 503 is fixedly connected to the end of the T-shaped connecting pipe 501 near the feed port 403. A slider 504 is slidably connected inside the T-shaped connecting pipe 501. A sealing block 505 is fixedly connected to the end of the slider 504 near the sealing ring 503, and a connecting rod 506 is fixedly connected to the other end of the slider 504. A sliding rod 507 is fixedly connected to the end of the connecting rod 506 away from the slider 504. The output end of the sliding rod 507 is rotatably connected to an L-shaped rotating rod 508. Rotary connection to limit block 502, the end of L-shaped rotating rod 508 away from sliding rod 507 is fixedly connected to float 509. When the liquid level is normal, sealing ring 503 and sealing block 505 cooperate to seal T-shaped connecting pipe 501. When the liquid level is low, float 509 moves downward under the action of gravity, driving L-shaped rotating rod 508 to rotate along limit block 502. L-shaped rotating rod 508 drives connecting rod 506 to move outward of T-shaped connecting pipe 501 through sliding rod 507, driving slider 504 to move. Sealing block 505 separates from sealing ring 503. Aromatic solvent is added to distillation tank 400. After addition, liquid level rises, float 509 moves upward, thereby resetting sealing block 505 and sealing T-shaped connecting pipe 501.

[0025] In one embodiment, such as Figure 2 As shown, the heating component includes a spiral electric heating tube 601, which is disposed between the constant temperature tank 300 and the distillation tank 400. Both ends of the spiral electric heating tube 601 are fixedly connected to the heating base 200. A constant temperature oil 602 is provided between the constant temperature tank 300 and the distillation tank 400. The constant temperature oil 602 between the constant temperature tank 300 and the distillation tank 400 is heated by the heating base 200 and the spiral electric heating tube 601. The constant temperature oil 602 uniformly covers the distillation tank 400 and heats the aromatic solvent for distillation, resulting in uniform heating.

[0026] In one embodiment, such as Figure 2 As shown, the moving unit includes four telescopic rods 701, which are fixedly connected to the groove at the lower end of the base 100. The output end of each telescopic rod 701 is fixedly connected to a moving wheel 702. When the device needs to be moved, the telescopic rods 701 extend their output rods, causing the moving wheels 702 to extend out of the groove at the lower end of the base 100, thus lifting the device and facilitating its movement by staff, thereby facilitating future maintenance and handling.

[0027] In one embodiment, such as Figure 1 and Figure 3As shown, the constant temperature module includes a temperature sensor 801, which is fixedly connected to the inner wall of the constant temperature tank 300. A controller 802 is fixedly connected to the surface of the heating base 200. The temperature sensor 801 is electrically connected to the controller 802. The temperature of the constant temperature oil 602 is detected by the temperature sensor 801. When the temperature is too high, the controller 802 controls the heating base 200 to stop heating, so as to ensure the stability of the temperature of the constant temperature oil 602, so that the aromatic solvent can be distilled at a constant temperature, thereby improving the distillation efficiency and distillation effect.

[0028] In one embodiment, such as Figure 2 As shown, the constant temperature oil 602 is paraffin oil. Paraffin oil can be heated to 220 degrees Celsius, which meets the conditions for aromatic solvent distillation, and has good thermal stability, and is not easily decomposed at high temperatures.

[0029] In one embodiment, such as Figure 1 As shown, the upper end of the constant temperature tank 300 is provided with an oil filling port 901, and the lower end of the constant temperature tank 300 is provided with an oil outlet 902, so that the constant temperature oil 602 between the constant temperature tank 300 and the distillation tank 400 can be replaced through the oil filling port 901 and the oil outlet 902 to ensure stability during distillation.

[0030] In one embodiment, such as Figure 2 As shown, the four telescopic rods 701 are evenly arranged at the lower end of the base 100, which evenly distributes the weight of the device, making the device more stable when moving.

[0031] The above embodiment discloses a constant temperature structure for an aromatic solvent distillation apparatus. Aromatic solvent is added to the distillation tank 400 through the feed port 403. A constant temperature oil 602 between the constant temperature tank 300 and the distillation tank 400 is heated by the heating base 200 and the spiral electric heating tube 601. The constant temperature oil 602 uniformly coats the distillation tank 400, ensuring uniform heating for the aromatic solvent distillation. The temperature of the constant temperature oil 602 is detected by the temperature sensor 801. When the temperature is too high, the controller 802 stops heating the heating base 200 to ensure the temperature of the constant temperature oil 602 is stable, allowing the aromatic solvent to undergo constant temperature distillation, improving distillation efficiency and effect. When the liquid level is normal, the sealing ring 503 and the sealing block 505 cooperate to seal the T-shaped connecting pipe 501. When the liquid level is low, the float 509, under the action of gravity... The device moves downwards, causing the L-shaped rotating rod 508 to rotate along the limiting block 502. The L-shaped rotating rod 508 drives the connecting rod 506 to move outwards from the T-shaped connecting pipe 501 via the sliding rod 507, causing the slider 504 to move. The sealing block 505 separates from the sealing ring 503, and aromatic solvent is added to the distillation tank 400. After addition, the liquid level rises, the float 509 moves upwards, thereby resetting the sealing block 505 and sealing the T-shaped connecting pipe 501. Aromatic solvent can be added automatically, avoiding situations where the aromatic solvent is not known to be distilled out or where the aromatic solvent is too little, which may affect the distillation. When the device needs to be moved, the telescopic rod 701 extends the output rod, causing the moving wheel 702 to extend out of the groove at the lower end of the base 100, lifting the device for easy movement by the staff, thus facilitating future maintenance and transportation.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A temperature-controlled structure for an aromatic solvent distillation apparatus, comprising a base (100), characterized in that, The upper end of the base (100) is fixedly connected to the heating seat (200), and the upper end of the heating seat (200) is fixedly connected to the constant temperature tank (300). The constant temperature tank (300) is equipped with a distillation tank (400). The outer surface of the distillation tank (400) is fixedly connected to the fixing frame (401). The fixing frame (401) is fixedly connected to the inner wall of the constant temperature tank (300). The upper end of the distillation tank (400) is equipped with a distillation outlet (402). The side of the distillation tank (400) is equipped with a feeding port (403). The feeding port (403) is equipped with a liquid level control mechanism. A heating component and a constant temperature module are provided between the constant temperature tank (300) and the distillation tank (400). The lower end of the base (100) is equipped with a moving unit.

2. The isothermal structure of an aromatic solvent distillation apparatus according to claim 1, characterized in that, The liquid level control mechanism includes a T-shaped connecting pipe (501), one horizontal end of which is fixedly connected to the feed port (403), and the other horizontal end of which is fixedly connected to a limiting block (502). A sealing ring (503) is fixedly connected to the end of the T-shaped connecting pipe (501) near the feed port (403). A slider (504) is slidably connected inside the T-shaped connecting pipe (501), and the slider (504) is close to the sealing ring (503). One end of the slider (504) is fixedly connected to a sealing block (505), and the other end of the slider (504) is fixedly connected to a connecting rod (506). The end of the connecting rod (506) away from the slider (504) is rotatably connected to a sliding rod (507). The output end of the sliding rod (507) is fixedly connected to an L-shaped rotating rod (508). The L-shaped rotating rod (508) is rotatably connected to a limiting block (502). The end of the L-shaped rotating rod (508) away from the sliding rod (507) is fixedly connected to a float (509).

3. The isothermal structure of an aromatic solvent distillation apparatus according to claim 1, characterized in that, The heating component includes a spiral electric heating tube (601), which is located between the constant temperature tank (300) and the distillation tank (400). Both ends of the spiral electric heating tube (601) are fixedly connected to the heating base (200). A constant temperature oil (602) is provided between the constant temperature tank (300) and the distillation tank (400).

4. The isothermal structure of an aromatic solvent distillation apparatus according to claim 1, characterized in that, The moving unit includes four telescopic rods (701), which are fixedly connected to the groove at the lower end of the base (100), and the output end of the telescopic rods (701) is fixedly connected to the moving wheel (702).

5. The isothermal structure of an aromatic solvent distillation apparatus according to claim 1, characterized in that, The constant temperature module includes a temperature sensor (801), which is fixedly connected to the inner wall of the constant temperature tank (300). A controller (802) is fixedly connected to the surface of the heating seat (200), and the temperature sensor (801) is electrically connected to the controller (802).

6. The isothermal structure of an aromatic solvent distillation apparatus according to claim 3, characterized in that, The constant temperature oil (602) is paraffin oil.

7. The isothermal structure of an aromatic solvent distillation apparatus according to claim 1, characterized in that, The thermostatic tank (300) has an oil filling port (901) at its upper end and an oil outlet (902) at its lower end.

8. The isothermal structure of an aromatic solvent distillation apparatus according to claim 4, characterized in that, The four telescopic rods (701) are evenly arranged at the lower end of the base (100).

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