Feeding device for polyester resin production

Abstract

The utility model relates to the technical field of feeding devices, and discloses a feeding device for polyester resin production, which solves the problem that the existing feeding device does not have a premixing function, and comprises a feeding premixing tank, a cover plate is arranged at the top end of the feeding premixing tank, and a plurality of feeding pipes are arranged on the side edge of the top end of the cover plate in a penetrating manner; a premixing hopper is arranged at the top end in the feeding premixing tank, an anti-blocking premixing mechanism is arranged in the premixing hopper in a penetrating mode, a discharging hopper is arranged at the bottom end of the feeding premixing tank, a spiral feeding machine is arranged at the bottom end of the discharging hopper, and the anti-blocking premixing mechanism is composed of a driving motor, a rotating shaft, a plurality of dispersing blades and a plurality of anti-blocking stirring rods. The driving motor is fixedly connected to the middle of the top end of the cover plate, the rotating shaft is fixedly connected to an output shaft of the driving motor, the dispersing blades are connected to the top end of the side edge of the rotating shaft, and the anti-blocking stirring rod is connected to the bottom end of the side edge of the rotating shaft; by means of the feeding device, premixing of raw materials can be achieved, and the production and processing efficiency of polyester resin is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding devices, in particular to a feeding device for polyester resin production. Background Art

[0002] Polyester resin is a general term for high-molecular compounds formed by the condensation of diols and dibasic acids. During the production process of polyester resin, a feeding device is required to add raw materials and various additives, initiators and other auxiliary agents, including some solid particulate raw materials and solid auxiliary agents. Existing feeding devices usually directly feed the raw materials and various auxiliary agents into the reaction vessel when in use, and are unable to achieve pre-mixing of the raw materials, resulting in an increase in the reaction time of the raw materials in the reaction vessel, affecting the production and processing efficiency of polyester resin. Therefore, the present application proposes a feeding device for polyester resin production. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a feeding device for polyester resin production, which effectively solves the problem that the prior feeding device does not have a pre-mixing function.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for polyester resin production, comprising a feeding premixing tank, the top of the feeding premixing tank is provided with a cover plate, and a plurality of feeding pipes are interspersed on the side of the top of the cover plate, a premixing funnel is fixedly provided on the top of the feeding premixing tank, an anti-blocking premixing mechanism is interspersed inside the premixing funnel, a lower hopper is fixedly provided at the bottom end of the feeding premixing tank, and a spiral feeding machine is fixedly provided at the bottom end of the lower hopper, the anti-blocking premixing mechanism is composed of a driving motor, a rotating shaft, a plurality of dispersing blades and a plurality of anti-blocking stirring rods, the driving motor is fixedly connected to the middle position of the top of the cover plate, the rotating shaft is fixedly connected to the output shaft of the driving motor and is interspersed in the feeding premixing tank and the lower hopper, the dispersing blades are fixedly connected to the top of the side of the rotating shaft and are located inside the premixing funnel, and the anti-blocking stirring rods are fixedly connected to the bottom end of the side of the rotating shaft and are located inside the lower hopper.

[0005] Preferably, the dispersing blades are staggered from top to bottom and their lengths decrease successively, and the dispersing blades are strip-shaped flat structures.

[0006] Preferably, an air pump is provided on the side of the feeding premixing tank, an annular air supply pipe is fixedly provided on the outer surface of the feeding premixing tank, the annular air supply pipe is connected to the air pump through an air guide pipe, and a plurality of blowing pipes are fixedly provided on the inner surface of the annular air supply pipe, which are inserted into the feeding premixing tank and matched with the premixing funnel.

[0007] Preferably, the blowing pipe is composed of a horizontal pipe, an inclined pipe and a bend head. The horizontal pipe is inserted into the feeding premixing tank and connected to the annular air supply pipe. The inclined pipe is fixedly connected to the bottom end of the side of the premixing funnel and connected to the horizontal pipe. The bend head is fixedly connected to the bottom end of the inclined pipe.

[0008] Preferably, an exhaust port is provided at the top of the front side of the feeding premixing tank, and a breathable cloth is provided inside the exhaust port.

[0009] Preferably, the screw feeder is composed of an insulating pipe sleeve, an electric heating inner layer, a servo motor and a feeding screw. The electric heating inner layer is fixedly connected to the inner surface of the insulating pipe sleeve, the servo motor is fixedly connected to one end of the insulating pipe sleeve, and the feeding screw is rotatably connected to the inside of the electric heating inner layer and fixedly connected to the output shaft of the servo motor.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) During operation, the premixing tank, premixing hopper and anti-blocking premixing mechanism composed of a driving motor, a rotating shaft, a plurality of dispersing blades and a plurality of anti-blocking stirring rods are provided, so that the raw materials for polyester resin production can be premixed, thereby improving the production and processing efficiency of polyester resin. The air pump, an annular air supply pipe, an air guide pipe and an air blowing pipe composed of a horizontal pipe, an inclined pipe and an elbow head are provided, so that the raw materials can be further blown away, the raw materials can be dispersed and mixed again, and the uniformity of the mixing of the raw materials can be ensured;

[0012] (2) By setting up a screw feeder composed of a heat-insulating pipe sleeve, an electric heating inner layer, a servo motor and a feeding screw, the mixed raw materials can be fed and heated and melted at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached figure:

[0015] Figure 1 This is a schematic structural diagram of a feeding device for polyester resin production according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the feeding device for polyester resin production according to the present invention;

[0017] Figure 3 This is a schematic diagram of the anti-blocking premixing mechanism structure of the utility model;

[0018] Figure 4 For this utility model Figure 3A partial enlarged view of

[0019] Figure 5 This is a schematic diagram of the structure of the spiral feeder of the utility model;

[0020] In the figure: 1. Feeding premixing tank; 2. Cover plate; 3. Feeding pipe; 4. Premixing funnel; 5. Anti-blocking premixing mechanism; 6. Lower hopper; 7. Screw feeder; 8. Driving motor; 9. Rotating shaft; 10. Dispersing blade; 11. Anti-blocking stirring rod; 12. Air pump; 13. Annular air supply pipe; 14. Air guide pipe; 15. Blowing pipe; 16. Horizontal pipe; 17. Inclined pipe; 18. Elbow head; 19. Exhaust port; 20. Breathable cloth; 21. Insulation pipe sleeve; 22. Electric heating inner layer; 23. Servo motor; 24. Feeding propeller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Depend on Figures 1 to 3 The utility model provides a feeding device for polyester resin production, comprising a feeding premixing tank 1, a cover plate 2 is provided at the top of the feeding premixing tank 1, a plurality of feeding pipes 3 are inserted through the side of the top of the cover plate 2, a premixing funnel 4 is fixedly provided at the top of the feeding premixing tank 1, an anti-blocking premixing mechanism 5 is inserted through the interior of the premixing funnel 4, a lower hopper 6 is fixedly provided at the bottom of the feeding premixing tank 1, a spiral feeder 7 is fixedly provided at the bottom of the lower hopper 6, and the anti-blocking premixing mechanism 5 is composed of a driving motor 8, a rotating shaft 9, and a plurality of distributors. The dispersing blades 10 and several anti-blocking stirring rods 11 are composed of a driving motor 8 fixedly connected to the middle position of the top of the cover plate 2, a rotating shaft 9 fixedly connected to the output shaft of the driving motor 8 and inserted into the feeding premixing tank 1 and the lower hopper 6, the dispersing blades 10 are fixedly connected to the top of the side of the rotating shaft 9 and are located inside the premixing funnel 4, the anti-blocking stirring rods 11 are fixedly connected to the bottom end of the side of the rotating shaft 9 and are located inside the lower hopper 6, the dispersing blades 10 are staggered from top to bottom and the lengths decrease in sequence, and the dispersing blades 10 are strip-shaped flat structures;

[0023] During use, different raw materials are fed through the feeding pipe 3, and the raw materials enter the interior of the premixing funnel 4. The driving motor 8 drives the rotating shaft 9, the dispersing blades 10 and the anti-blocking stirring rod 11 to rotate synchronously. The dispersing blades 10 can disperse the raw materials. During the dispersion process, the raw materials move down along the premixing funnel 4 and are mixed. Then, they enter the bottom end of the feeding premixing tank 1 and enter the interior of the spiral feeder 7 along the lower hopper 6. The anti-blocking stirring rod 11 can prevent the raw materials from being blocked inside the lower hopper 6.

[0024] Depend on Figures 1 to 4 It is given that an air pump 12 is provided on the side of the feeding premixing tank 1, and an annular air supply pipe 13 is fixedly provided on the outer surface of the feeding premixing tank 1. The annular air supply pipe 13 is connected to the air pump 12 through an air guide pipe 14. The inner surface of the annular air supply pipe 13 is fixedly provided with a plurality of blowing pipes 15 that are inserted into the feeding premixing tank 1 and matched with the premixing funnel 4. The blowing pipe 15 is composed of a horizontal pipe 16, an inclined pipe 17 and a bend head 18. The horizontal pipe 16 is inserted into the feeding premixing tank 1 and communicates with the annular air supply pipe 13. The inclined pipe 17 is fixedly connected to the bottom end of the side of the premixing funnel 4 and is connected to the horizontal pipe 16. The bend head 18 is fixedly connected to the bottom end of the inclined pipe 17. An exhaust port 19 is provided at the top of the front of the feeding premixing tank 1, and a breathable cloth 20 is provided inside the exhaust port 19.

[0025] When the raw materials are discharged from the bottom of the premixing funnel 4, the air pump 12 supplies air to the annular air supply pipe 13, and the gas is discharged along the horizontal pipe 16, the inclined pipe 17 and the elbow head 18. The blowing of the elbow head 18 is used to blow the raw materials again to ensure that the raw materials can be fully mixed and evenly mixed. During the continuous blowing process, the air pressure inside the feeding premixing tank 1 increases. At this time, exhaust is achieved through the exhaust port 19. The breathable cloth 20 can block the raw materials to prevent them from being discharged;

[0026] Depend on Figure 1 and Figure 5 The screw feeder 7 is composed of an insulating sleeve 21, an electric heating inner layer 22, a servo motor 23 and a feeding screw 24. The electric heating inner layer 22 is fixedly connected to the inner surface of the insulating sleeve 21, the servo motor 23 is fixedly connected to one end of the insulating sleeve 21, and the feeding screw 24 is rotatably connected to the inside of the electric heating inner layer 22 and fixedly connected to the output shaft of the servo motor 23.

[0027] The mixed raw materials enter the interior of the screw feeder 7, and the servo motor 23 drives the feeding screw 24 to rotate. The feeding screw 24 is used to push the raw materials in an orderly manner. The electric heating inner layer 22 can heat and melt the raw materials, further improving the production and processing efficiency of polyester resin.

[0028] During operation, by providing a feeding premixing tank, a premixing funnel and an anti-blocking premixing mechanism composed of a driving motor, a rotating shaft, a plurality of dispersing blades and a plurality of anti-blocking stirring rods, it is possible to premix the raw materials for polyester resin production, thereby improving the production and processing efficiency of polyester resin; by providing an air pump, an annular air supply pipe, an air guide pipe and an air blowing pipe composed of a horizontal pipe, an inclined pipe and a curved pipe head, it is possible to further blow away the raw materials, achieve redispersion and mixing of the raw materials, and ensure the uniformity of mixing of the raw materials; by providing a spiral feeder composed of a heat-insulating pipe sleeve, an electric heating inner layer, a servo motor and a feeding propeller, it is possible to feed the mixed raw materials and at the same time heat and melt the raw materials.

Claims

1. A feeding device for polyester resin production, comprising a feeding premixing tank (1), characterized in that: The top of the feeding premixing tank (1) is provided with a cover plate (2), and a plurality of feeding pipes (3) are inserted through the side of the top of the cover plate (2). A premixing funnel (4) is fixedly provided at the top of the feeding premixing tank (1), and an anti-blocking premixing mechanism (5) is inserted through the inside of the premixing funnel (4). A lower hopper (6) is fixedly provided at the bottom of the feeding premixing tank (1), and a spiral feeder (7) is fixedly provided at the bottom of the lower hopper (6). The anti-blocking premixing mechanism (5) is driven by a driving motor (8), a rotating shaft (9) and a rotating shaft (10). The invention relates to a premixing tank (1) and a premixing tank (4). The premixing tank (4) comprises a plurality of dispersing blades (10) and a plurality of anti-blocking stirring rods (11). The driving motor (8) is fixedly connected to the middle position of the top end of the cover plate (2). The rotating shaft (9) is fixedly connected to the output shaft of the driving motor (8) and is inserted into the feeding premixing tank (1) and the lower hopper (6). The dispersing blades (10) are fixedly connected to the top end of the side of the rotating shaft (9) and are located inside the premixing funnel (4). The anti-blocking stirring rods (11) are fixedly connected to the bottom end of the side of the rotating shaft (9) and are located inside the lower hopper (6).

2. The feeding device for polyester resin production according to claim 1, characterized in that: The dispersing blades (10) are staggered from top to bottom and have decreasing lengths. The dispersing blades (10) are in a strip-shaped flat structure.

3. The feeding device for polyester resin production according to claim 1, characterized in that: An air pump (12) is provided on the side of the feeding premixing tank (1), an annular air supply pipe (13) is fixedly provided on the outer surface of the feeding premixing tank (1), the annular air supply pipe (13) is connected to the air pump (12) via an air guide pipe (14), and a plurality of blowing pipes (15) are fixedly provided on the inner surface of the annular air supply pipe (13), which are inserted into the feeding premixing tank (1) and matched with the premixing funnel (4).

4. The feeding device for polyester resin production according to claim 3, characterized in that: The air blowing pipe (15) is composed of a horizontal pipe (16), an inclined pipe (17) and an elbow (18). The horizontal pipe (16) is inserted into the feeding premixing tank (1) and communicated with the annular air supply pipe (13). The inclined pipe (17) is fixedly connected to the bottom end of the side of the premixing funnel (4) and connected to the horizontal pipe (16). The elbow (18) is fixedly connected to the bottom end of the inclined pipe (17).

5. The feeding device for polyester resin production according to claim 1, characterized in that: An exhaust port (19) is provided at the top end of the front face of the feeding premixing tank (1), and a breathable cloth (20) is provided inside the exhaust port (19).

6. The feeding device for polyester resin production according to claim 1, characterized in that: The screw feeder (7) is composed of a heat-insulating pipe sleeve (21), an electric heating inner layer (22), a servo motor (23) and a feeding screw propeller (24); the electric heating inner layer (22) is fixedly connected to the inner surface of the heat-insulating pipe sleeve (21); the servo motor (23) is fixedly connected to one end of the heat-insulating pipe sleeve (21); and the feeding screw propeller (24) is rotatably connected to the inside of the electric heating inner layer (22) and is fixedly connected to the output shaft of the servo motor (23).

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