Novel cooling device for purified terephthalic acid production technology

Abstract

The utility model relates to the technical field of purified terephthalic acid production, and discloses a novel cooling device for purified terephthalic acid production technology, which comprises a cooling barrel, the top end of the cooling barrel is fixedly connected with a support frame, the top end of the support frame is fixedly connected with a motor, and the driving end of the motor is fixedly connected with a reciprocating screw rod. A stirring assembly is arranged on the outer wall of the reciprocating screw rod, connecting rods are fixedly connected to the four sides of the top end of the outer wall of the reciprocating screw rod, an inner cylinder is fixedly connected to the outer sides of the connecting rods, the bottom end of the inner cylinder is rotatably connected to the top end of the inner wall of the cooling barrel, and stirring plates are fixedly connected to the four sides of the inner wall of the inner cylinder; an annular pipe is fixedly connected to the inner wall of the cooling barrel, the inner barrel is located on the inner side of the annular pipe, and the annular pipe is connected with a water tank through a circulation assembly. According to the cooling device, heat is blown to the outer side of the inner barrel through the movable plate, and meanwhile, the water tank conveys cold water in the inner barrel into the annular pipe, so that the heat on the outer side of the inner barrel is taken away by water, and the efficient cooling effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of purified terephthalic acid production, especially to a novel cooling device for purified terephthalic acid production technology. BACKGROUND

[0002] The production of purified terephthalic acid (PTA) usually adopts processes such as p-xylene (PX) oxidation method. In the oxidation reaction stage, the reaction temperature is relatively high, generally at 180-200℃ or even higher. The product after reaction contains a large amount of heat energy. If not cooled in time, the continuous high temperature will cause the molecular chain to break and the chemical structure to change, thereby reducing the purity and quality of the product.

[0003] The existing technology currently uses natural air cooling method to cool the purified terephthalic acid, but this method is low in efficiency and affects work efficiency.

[0004] To solve the technical problem of low cooling efficiency, the present application proposes a novel cooling device for purified terephthalic acid production technology. SUMMARY

[0005] The utility model discloses a novel cooling device for purified terephthalic acid production technology, which blows heat to the outside of the inner cylinder through the moving plate, and at the same time, the water tank delivers cold water inside to the annular pipe to cool the inner cylinder, thereby realizing efficient cooling effect and rapid cooling of water inside the water tank, ensuring that the water inside the water tank can be used for multiple cycles for a long time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a novel cooling device for purified terephthalic acid production technology, comprising a cooling barrel, a support frame is fixedly connected to the top end of the cooling barrel, an electric motor is fixedly connected to the top end of the support frame, a reciprocating screw rod is fixedly connected to the drive end of the electric motor, a turning assembly is arranged on the outer wall of the reciprocating screw rod, a connecting rod is fixedly connected to the top end of the outer wall of the reciprocating screw rod on four sides, an inner cylinder is fixedly connected to the outer side of the connecting rod, the inner cylinder is rotatably connected to the inner wall top end of the cooling barrel at the bottom end, a stirring plate is fixedly connected to the inner wall of the inner cylinder on four sides, an annular pipe is fixedly connected to the inner wall of the cooling barrel, the inner cylinder is located inside the annular pipe, the annular pipe is connected with a water tank through a circulating assembly, a heat dissipation tank is fixedly connected to the right end of the water tank, and a heat dissipation assembly is arranged on the inner wall of the heat dissipation tank to cool the water inside the water tank.

[0007] Further, the turning assembly comprises a moving plate screw-connected to the outer wall of the reciprocating screw rod, a control rod is fixedly connected to the bottom end of the inner wall of the cooling barrel, and the inner wall of the moving plate is slidingly connected to the outer wall of the control rod.

[0008] Further, the circulating assembly comprises a water pump fixedly connected to the left end of the water tank, a water outlet pipe is fixedly connected to the left end of the water pump, and one end of the annular pipe is fixedly connected to the left end of the water outlet pipe.

[0009] Further, the other end of the annular pipe is fixedly connected with a water return pipe, and the bottom end of the water return pipe is fixedly connected to the top end of the water tank.

[0010] Further, the heat dissipation assembly comprises heat dissipation fins fixedly connected to the inner wall of the right end of the water tank, the heat dissipation fins are located in the interior of the heat dissipation tank, the inner wall of the right end of the heat dissipation tank is fixedly connected with a fan, and the front and rear ends of the heat dissipation tank are fixedly connected with dustproof nets.

[0011] Further, the top end of the outer wall of the inner cylinder is fixedly connected with a circular ring, and the outer wall of the circular ring is rotatably connected to the inner wall of the cooling barrel.

[0012] Further, the bottom end of the cooling barrel is fixedly connected with a discharge pipe, and the outer wall of the discharge pipe is provided with a control valve.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. In the utility model, the terephthalic acid in the cooling barrel is stirred by the stirring plate, heat transfer is promoted, the moving plate inside the barrel blows heat to the outer side of the inner cylinder, the water tank transports cold water inside to the outer side of the inner cylinder to cool the inner cylinder, and therefore, efficient cooling effect is realized.

[0015] 2. In the utility model, the heat dissipation fins on the water tank are blown by the fan, the water inside the water tank is rapidly cooled, the water inside the water tank does not heat up due to absorbing the heat of the terephthalic acid, the water temperature is stable, and the water inside the water tank can be used for a long time. DRAWINGS

[0016] Figure 1 It is a perspective view of the novel cooling device for terephthalic acid production technology provided by the utility model;

[0017] Figure 2 It is a cooling barrel sectional view of the novel cooling device for terephthalic acid production technology provided by the utility model;

[0018] Figure 3 It is an inner cylinder sectional view of the novel cooling device for terephthalic acid production technology provided by the utility model;

[0019] Figure 4 It is a heat dissipation fin schematic view of the novel cooling device for terephthalic acid production technology provided by the utility model.

[0020] LEGEND:

[0021] 1, cooling barrel; 2, support frame; 3, motor; 4, reciprocating screw rod; 5, connecting rod; 6, inner cylinder; 7, stirring plate; 8, circular ring; 9, moving plate; 10, control rod; 11, water tank; 12, water pump; 13, water outlet pipe; 14, annular pipe; 15, return pipe; 16, heat dissipation fin; 17, heat dissipation box; 18, fan; 19, dust screen; 20, discharge pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Referring to Figures 1-3 The present application provides an embodiment: a novel cooling device for terephthalic acid production technology, comprising a cooling barrel 1, the top end of the cooling barrel 1 is fixedly connected with a support frame 2, the top end of the support frame 2 is fixedly connected with a motor 3, the driving end of the motor 3 is fixedly connected with a reciprocating screw rod 4, referring to Figure 4 , the outer wall of the reciprocating screw rod 4 is threadedly connected with a moving plate 9, the inner wall bottom end of the cooling barrel 1 is fixedly connected with a control rod 10, the inner wall of the moving plate 9 is slidingly connected to the outer wall of the control rod 10, the outer wall top end of the reciprocating screw rod 4 is fixedly connected with connecting rods 5 on four sides, the outer side of the connecting rod 5 is fixedly connected with an inner cylinder 6, the bottom end of the inner cylinder 6 is rotatably connected to the inner wall top end of the cooling barrel 1, the inner wall four sides of the inner cylinder 6 are fixedly connected with stirring plates 7, the outer wall top end of the inner cylinder 6 is fixedly connected with a circular ring 8, the outer wall of the circular ring 8 is rotatably connected to the inner wall of the cooling barrel 1, the bottom end of the cooling barrel 1 is fixedly connected with a discharge pipe 20, and the outer wall of the discharge pipe 20 is provided with a control valve.

[0024] Specifically, when the reciprocating screw rod 4 drives the inner cylinder 6 to rotate through the connecting rod 5, the circular ring 8 on the inner cylinder 6 will also rotate inside the cooling barrel 1, supporting the upper end of the inner cylinder 6 and preventing the upper end of the inner cylinder 6 from shaking, the control rod 10 inside limits the movement of the moving plate 9, allowing it to move only up and down, and the control valve on the discharge pipe 20 can control the opening and closing of the discharge pipe 20.

[0025] Referring to Figure 1The inner wall of the cooling barrel 1 is fixedly connected with an annular pipe 14, the inner cylinder 6 is located inside the annular pipe 14, the left end of the water tank 11 is fixedly connected with a water pump 12, the left end of the water pump 12 is fixedly connected with a water outlet pipe 13, one end of the annular pipe 14 is fixedly connected to the left end of the water outlet pipe 13, the other end of the annular pipe 14 is fixedly connected with a water return pipe 15, the bottom end of the water return pipe 15 is fixedly connected to the top end of the water tank 11, the right end of the water tank 11 is fixedly connected with a heat dissipation tank 17, the inner wall of the right end of the water tank 11 is fixedly connected with heat dissipation fins 16, the right end of the heat dissipation fins 16 is located inside the heat dissipation tank 17, the inner wall of the right end of the heat dissipation tank 17 is fixedly connected with a fan 18, and the heat dissipation tank 17 is fixedly connected with a dustproof net 19 at the front and rear ends, so as to cool the water inside the water tank 11.

[0026] Specifically, the annular pipe 14 is made of good heat-conducting material, which can quickly absorb the heat on the inner cylinder 6, and the annular pipe 14 can increase the contact area with the inner cylinder 6, so that the heat conduction effect is better, one side of the heat dissipation fins 16 is in the water tank 11, and the other side is located in the heat dissipation tank 17, the fan 18 blows the heat dissipation fins 16, which strengthens the air convection, the forced air flow generated by the fan 18 can flow through the surface of the heat dissipation fins 16 at a higher speed, greatly improving the heat exchange efficiency, and the forced convection can quickly take away the heat on the heat dissipation fins 16, so that the water in the water tank 11 is cooled faster.

[0027] Working principle: first, add purified terephthalic acid into the inner cylinder 6 from the top of the cooling barrel 1, then start the motor 3, the motor 3 drives the reciprocating screw rod 4 to rotate, the reciprocating screw rod 4 drives the inner cylinder 6 to rotate through the connecting rod 5, the inner cylinder 6 drives the stirring plate 7 inside to rotate, the stirring plate 7 stirs the purified terephthalic acid in the inner cylinder 6, at the same time, the reciprocating screw rod 4 drives the moving plate 9 to move up and down, so that the moving plate 9 stirs the purified terephthalic acid in the inner cylinder 6, so that the part with higher temperature and the part with lower temperature can be mixed better, so as to promote heat transfer and dispersion, at the same time, the water pump 12 is started to send the water in the water tank 11 to the annular pipe 14 through the water outlet pipe 13, the water in the annular pipe 14 absorbs the heat on the inner cylinder 6, so that the temperature in the inner cylinder 6 is quickly reduced, the water absorbing heat returns to the water tank 11 through the water return pipe 15, at this time, the fan 18 on the heat dissipation tank 17 is started to blow the heat dissipation fins 16, and the heat dissipation fins 16 quickly cool the water inside the water tank 11, so as to achieve water circulation, finally, the cooled purified terephthalic acid is discharged through the discharge pipe 20 at the bottom end.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A novel cooling device for the production technology of purified terephthalic acid, characterized in that, Including cooling bucket (1), cooling bucket (1) top fixedly connected with support frame (2), support frame (2) top fixedly connected with motor (3), motor (3) drive end fixedly connected with reciprocating screw rod (4), reciprocating screw rod (4) outer wall is provided with turnover subassembly, reciprocating screw rod (4) outer wall top four sides are all fixedly connected with connecting rod (5), connecting rod (5) outer side is fixedly connected with inner cylinder (6), inner cylinder (6) bottom end rotationally connected in cooling bucket (1) inner wall top, inner cylinder (6) inner wall four sides are fixedly connected with stirring plate (7), cooling bucket (1) inner wall is fixedly connected with annular pipe (14), inner cylinder (6) is located in annular pipe (14) inside, annular pipe (14) is connected with water tank (11) by circulation subassembly, water tank (11) right end is fixedly connected with heat sink (17), heat sink (17) inner wall is provided with heat dissipation subassembly, for the water in water tank (11) inside is cooled.

2. The novel cooling device for terephthalic acid production technology according to claim 1, characterized by: The turnover subassembly includes a moving plate (9) threadedly connected to the outer wall of the reciprocating screw rod (4), and the control rod (10) is fixedly connected to the bottom end of the inner wall of the cooling bucket (1).

3. The novel cooling device for terephthalic acid production technology according to claim 1, characterized in that: The circulation subassembly includes a water pump (12) fixedly connected to the left end of the water tank (11), and the water pump (12) is fixedly connected to the left end of the water outlet pipe (13).

4. The novel cooling device for terephthalic acid production technology according to claim 3, characterized by: The annular pipe (14) is fixedly connected to the left end of the water outlet pipe (13).

5. The novel cooling device for terephthalic acid production technology according to claim 1, characterized in that: The heat dissipation subassembly includes heat dissipation fins (16) fixedly connected to the inner wall of the right end of the water tank (11), and the heat dissipation fins (16) are located inside the heat sink (17).

6. The novel cooling device for terephthalic acid production technology according to claim 1, characterized by: The heat dissipation fins (16) are fixedly connected to the inner wall of the right end of the heat sink (17), and the heat sink (17) is fixedly connected to the fan (18).

7. The novel cooling device for terephthalic acid production technology according to claim 1, characterized by: The inner cylinder (6) is fixedly connected to the outer wall of the top of the cooling bucket (1). The cooling bucket (1) is fixedly connected to the bottom end of the discharge pipe (20), and the discharge pipe (20) is provided with a control valve.

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