Drying equipment for polyphenylene sulfide production

Abstract

The utility model relates to the technical field of polyphenylene sulfide production, in particular to drying equipment for polyphenylene sulfide production, which comprises a drying tank, an air inlet, an air outlet, a vibrating mechanism, a heat conduction layer, a heating mechanism, a heat insulation plate, a feed pipe and a discharge port. The bottom of the conical hopper is communicated with a long discharging pipe, two sliding rods are arranged above the conical hopper, an abutting block is arranged above the sliding rods, the sliding rods can push the conical hopper downwards through the arrangement of the cam and the abutting block, after the cam is separated from the abutting block, the conical hopper bounces upwards instantly under the action of the spring, and therefore raw materials are vibrated, and the raw materials are conveyed into the conical hopper. The generated vibration can promote relative displacement and friction between raw material particles, meanwhile, gaps between the raw material particles can be fully utilized through vibration, the contact area of hot air and raw materials is increased, and the drying efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of polyphenylene sulfide production technology, and in particular to a drying device for polyphenylene sulfide production. Background Technology

[0002] Polyphenylene sulfide (PPS) is a thermoplastic resin with phenyl sulfide groups in its molecular backbone. It is a crystalline polymer and a novel high-performance thermoplastic resin with advantages such as high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, and excellent electrical properties. It is widely used in the electronics, automotive, machinery, and chemical industries. PPS requires drying during production. This is achieved by passing PPS into a drying tank, where it is heated for drying. However, in existing PPS drying equipment, the heating element is located at the bottom of the drying tank, resulting in slow drying at the top and poor drying efficiency. Furthermore, the production of PPS generates a large amount of solid matter that enters the drying tank, causing solid waste to accumulate inside and be difficult to remove.

[0003] Existing patent CN202221686763.2 discloses a drying device for polyphenylene sulfide production, including a drying tank. The drying tank has an annular partition inside, which divides the interior of the drying tank into a heating chamber and a gas chamber. The heating chamber surrounds the gas chamber and has a heating component inside. The heating component includes a heating ring tube and straight tubes. The heating ring tube is located inside the heating chamber and is close to the partition. The heating ring tube has a spiral structure, and a straight tube is connected to each end of the heating ring tube. A heating liquid is added to the heating ring tube to uniformly heat the gas chamber, so that the gas is completely dried from top to bottom, improving the drying effect and accelerating the drying speed.

[0004] However, in the aforementioned prior art, since the mixing component can only stir and mix the raw materials in the lower part of the drying tank, but cannot stir and mix the raw materials in the upper part of the drying tank, the raw materials in the upper part are prone to uneven drying. Utility Model Content

[0005] The purpose of this utility model is to provide a drying device for the production of polyphenylene sulfide, which aims to solve the technical problem in the prior art that the mixing component can only stir and mix the raw materials in the lower part of the drying tank, but cannot stir and mix the raw materials in the upper part of the drying tank, thus causing the raw materials in the upper part to dry unevenly.

[0006] To achieve the above objectives, this utility model employs a drying device for polyphenylene sulfide (PPS) production, comprising a drying tank and a vibration mechanism. The drying tank has an air inlet and an air outlet on its outer side. A heat-conducting layer is disposed inside the drying tank, and a heating mechanism is disposed between the heat-conducting layer and the drying tank. A heat insulation plate is disposed above the heat-conducting layer, and a feed pipe is disposed on the heat insulation plate. An outlet is located at the bottom of the drying tank. The vibration mechanism includes a spring, a conical hopper, two cams, and two support seats. The bottom of the conical hopper is connected to a discharge pipe. Two sliding rods are disposed above the conical hopper, and a [missing information - likely a device or mechanism] is disposed above the sliding rods. The spring is sleeved on the outside of the discharge tube and abuts against the drying tank and the conical hopper. The conical hopper is slidably connected to the heat-conducting layer and abuts against the inner wall of the heat-conducting layer. The sliding rod extends to the heat insulation plate. The discharge tube is located inside the discharge port. The two cams are rotatably connected to the corresponding support seats and are located on the support seats. Both cams are driven by a power component. The two support seats are fixedly connected to the heat insulation plate and are located at the end of the heat insulation plate away from the feed tube. The cams are also located on the side of the corresponding abutment block.

[0007] The vibration mechanism further includes a threaded cap and multiple limiting rods. The threaded cap is provided with a sealing rod. The lower part of the discharge tube has an external thread. The threaded cap is threadedly connected to the discharge tube and is located at the lower part of the discharge tube, and is also located at the external thread. The sealing rod extends into the discharge tube. The multiple limiting rods are respectively fixedly connected to the conical hopper and are located below the conical hopper, and also extend to the bottom of the drying tank.

[0008] The contact block has an inclined surface, and the inclined surface is adapted to the cam.

[0009] The drying equipment for polyphenylene sulfide production also includes a filter element and a support ring. The filter element is disposed on the support ring, the support ring is fixedly connected to the feed pipe and located on the inner wall of the feed pipe, and the filter element abuts against the feed pipe.

[0010] The heating mechanism includes multiple heating rods and a connecting ring. The connecting ring has two fastening grooves. The multiple heating rods are fixedly connected to the connecting ring and located below the connecting ring. The connecting ring is disposed between the heat-conducting layer and the drying tank, and the multiple heating rods also extend between the heat-conducting layer and the drying tank.

[0011] This utility model discloses a drying device for the production of polyphenylene sulfide, comprising a drying tank and a vibration mechanism. The drying tank has an air inlet and an air outlet on its outer side. A heat-conducting layer is disposed inside the drying tank, and a heating mechanism is disposed between the heat-conducting layer and the drying tank. A heat insulation plate is disposed above the heat-conducting layer, and a feed pipe is disposed on the heat insulation plate. An outlet is located at the bottom of the drying tank. The vibration mechanism includes a spring, a conical hopper, two cams, and two support seats. The bottom of the conical hopper is connected to a discharge pipe. Two sliding rods are disposed above the conical hopper, and an abutment block is disposed above each sliding rod. The vibration mechanism utilizes the cams and the abutment block to... The sliding rod can push the conical bucket downwards. After the cam disengages from the abutting block, the conical bucket bounces upwards instantaneously under the action of the spring, thereby causing the raw material to vibrate. The vibration can cause relative displacement and friction between the raw material particles. At the same time, the vibration can make full use of the gaps between the raw material particles, increase the contact area between hot air and raw material, and further improve drying efficiency. In this way, the technical problem that the mixing component can only stir and mix the raw material in the lower part of the drying tank, but cannot stir and mix the raw material in the upper part of the drying tank, is caused by uneven drying of the raw material in the upper part of the drying tank. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional view of the present invention.

[0014] Figure 2 This is the front view of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view along the BB line.

[0017] 1-Drying tank, 2-Air inlet, 3-Air outlet, 4-Heat-conducting layer, 5-Heat insulation plate, 6-Feed pipe, 7-Discharge port, 8-Spring, 9-Conical hopper, 10-Dual-axis motor, 11-Cam, 12-Support seat, 13-Discharge long pipe, 14-Slide rod, 15-Abutting block, 16-Threaded cap, 17-Limiting rod, 18-Blocking rod, 19-Inclined surface, 20-Filter element, 21-Support ring, 22-Heating rod, 23-Connecting ring, 24-Groove. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1-4 This utility model provides a drying device for the production of polyphenylene sulfide, including a drying tank 1 and a vibration mechanism. The drying tank 1 has an air inlet 2 and an air outlet 3 on its outer side. A heat-conducting layer 4 is provided inside the drying tank 1. A heating mechanism is provided between the heat-conducting layer 4 and the drying tank 1. A heat insulation plate 5 is provided above the heat-conducting layer 4. A feed pipe 6 is provided on the heat insulation plate 5. The drying tank 1 has a discharge port 7 at its bottom. By pouring raw materials into the drying tank 1, the heat-conducting layer 4 is heated by the heating mechanism, thereby drying the raw materials in the drying tank 1.

[0020] In this specific embodiment, the vibration mechanism includes a spring 8, a conical hopper 9, two cams 11, and two support seats 12. The bottom of the conical hopper 9 is connected to a discharge pipe 13. Two sliding rods 14 are arranged above the conical hopper 9, and an abutment block 15 is arranged above each sliding rod 14. The spring 8 is sleeved on the outside of the discharge pipe 13 and abuts against the drying tank 1 and the conical hopper 9. The conical hopper 9 is slidably connected to the heat-conducting layer 4 and abuts against the inner wall of the heat-conducting layer 4. The sliding rods 14 extend to the heat insulation plate 5. The discharge pipe 13 is located inside the discharge port 7. The two cams 11 are rotatably connected to their corresponding support seats 12 and are located on the support seats 12. Both cams 11 are driven by a power component. The two support seats 12 are fixedly connected to the heat insulation plate 5 and are located at the end of the heat insulation plate 5 away from the feed pipe 6. Cam 11 is also located on one side of the corresponding abutment block 15. The power component in this design is a dual-axis motor 10, and the two cams 11 are respectively set at the corresponding output ends of the dual-axis motor 10. Through the setting of the cam 11 and the abutment block 15, the slide rod 14 can push the conical bucket 9 downward. After the cam 11 disengages from the abutment block 15, the conical bucket 9 instantly bounces upward under the action of the spring 8, thereby causing the raw material to vibrate. The vibration can cause relative displacement and friction between the raw material particles. At the same time, the vibration can also make full use of the gap between the raw material particles, increase the contact area between hot air and raw material, and further improve drying efficiency. In this way, the technical problem that the mixing component can only stir and mix the raw material in the lower part of the drying tank 1, but cannot stir and mix the raw material in the upper part of the drying tank 1, is easily caused by uneven drying of the raw material in the upper part.

[0021] The vibration mechanism further includes a threaded cap 16 and multiple limiting rods 17. The threaded cap 16 is provided with a sealing rod 18. The lower part of the discharge tube 13 has external threads. The threaded cap 16 is threadedly connected to the discharge tube 13 and is located at the lower part of the discharge tube 13 and at the external threads. The sealing rod 18 extends into the discharge tube 13. The multiple limiting rods 17 are respectively fixedly connected to the conical hopper 9 and are located below the conical hopper 9 and extend to the lower part of the drying tank 1. The sealing rod 18 can prevent the raw materials to be dried from entering the discharge tube 13, and the limiting rods 17 can prevent the conical hopper 9 from moving upwards excessively.

[0022] Secondly, the abutment block 15 has an inclined surface 19, and the inclined surface 19 is adapted to the cam 11. The inclined surface 19 facilitates better contact with the cam 11.

[0023] Furthermore, the drying equipment for polyphenylene sulfide production also includes a filter element 20 and a support ring 21. The filter element 20 is disposed on the support ring 21, and the support ring 21 is fixedly connected to the feed pipe 6 and located on the inner wall of the feed pipe 6. The filter element 20 abuts against the feed pipe 6. Impurities in the raw materials can be easily filtered out through the filter element 20. The support ring 21 supports the filter element 20, which can realize the quick replacement of the filter element 20.

[0024] In addition, the heating mechanism includes multiple heating rods 22 and a connecting ring 23. The connecting ring 23 has two fastening grooves 24. The multiple heating rods 22 are fixedly connected to the connecting ring 23 and are located below the connecting ring 23. The connecting ring 23 is disposed between the heat-conducting layer 4 and the drying tank 1. The multiple heating rods 22 also extend between the heat-conducting layer 4 and the drying tank 1. The multiple heating rods 22 facilitate heating inside the drying tank 1, thereby transferring heat to the raw material through the heat-conducting plate. The connecting ring 23 facilitates the simultaneous removal of the multiple heating rods 22.

[0025] When using this invention to dry raw materials, the raw materials are first poured into the drying tank 1. Multiple heating rods 22 heat the heat-conducting layer 4, thereby drying the raw materials in the drying tank 1. Then, the dual-axis motor 10 is activated, driving two cams 11. The two cams 11 abut against corresponding contact blocks 15, causing the slide rod 14 to push the conical bucket 9 downwards. Under the structural action of the cams 11, when the cams 11 disengage from the contact blocks 15, the conical bucket 9 instantly springs upwards under the action of the spring 8. The cycle repeats, causing the raw material to vibrate. This vibration promotes relative displacement and friction between the raw material particles. Simultaneously, the vibration allows for full utilization of the gaps between the raw material particles, increasing the contact area between hot air and the raw material, further improving drying efficiency. Furthermore, an air pipe is inserted into the air inlet 2, allowing the gas to discharge the waste generated from the raw material through the air outlet 3. This method solves the technical problem that the mixing component can only stir and mix the raw material in the lower part of the drying tank 1, but cannot stir and mix the raw material in the upper part of the drying tank 1, which leads to uneven drying of the raw material in the upper part.

[0026] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A drying device for the production of polyphenylene sulfide, comprising a drying tank, an air inlet and an air outlet provided on the outer side of the drying tank, a heat-conducting layer provided inside the drying tank, a heating mechanism provided between the heat-conducting layer and the drying tank, a heat insulation plate provided above the heat-conducting layer, a feed pipe provided on the heat insulation plate, and a discharge port provided at the bottom of the drying tank, characterized in that, It also includes vibration mechanisms; The vibration mechanism includes a spring, a conical hopper, two cams, and two support seats. The bottom of the conical hopper is connected to a discharge pipe. Two sliding rods are arranged above the conical hopper, and an abutting block is arranged above the sliding rods. The spring is sleeved on the outside of the discharge pipe and abuts against the drying tank and the conical hopper. The conical hopper is slidably connected to the heat-conducting layer and abuts against the inner wall of the heat-conducting layer. The sliding rods extend to the heat insulation plate. The discharge pipe is located inside the discharge port. The two cams are rotatably connected to the corresponding support seats and are located on the support seats. Both cams are driven by a power component. The two support seats are fixedly connected to the heat insulation plate and are located at the end of the heat insulation plate away from the feed pipe. The cams are also located on the side of the corresponding abutting block.

2. The drying equipment for polyphenylene sulfide production as described in claim 1, characterized in that, The vibration mechanism also includes a threaded cap and multiple limiting rods. The threaded cap is provided with a sealing rod. The lower part of the discharge tube has an external thread. The threaded cap is threadedly connected to the discharge tube and is located at the lower part of the discharge tube and at the external thread. The sealing rod extends into the discharge tube. The multiple limiting rods are respectively fixedly connected to the conical hopper and are located below the conical hopper and extend to the bottom of the drying tank.

3. The drying equipment for polyphenylene sulfide production as described in claim 2, characterized in that, The abutment block has an inclined surface, and the inclined surface is adapted to the cam.

4. The drying equipment for polyphenylene sulfide production as described in claim 3, characterized in that, The drying equipment for polyphenylene sulfide production also includes a filter element and a support ring. The filter element is disposed on the support ring, the support ring is fixedly connected to the feed pipe and located on the inner wall of the feed pipe, and the filter element abuts against the feed pipe.

5. The drying equipment for polyphenylene sulfide production as described in claim 4, characterized in that, The heating mechanism includes multiple heating rods and a connecting ring. The connecting ring has two fastening grooves. The multiple heating rods are fixedly connected to the connecting ring and located below the connecting ring. The connecting ring is disposed between the heat-conducting layer and the drying tank, and the multiple heating rods also extend between the heat-conducting layer and the drying tank.

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