A polyphenylene sulfide resin polymerizer discharge structure

Abstract

The utility model discloses a kind of polyphenyl sulfide resin polymerizer discharge structures, specifically related to polyphenyl sulfide resin processing technical field, including connecting box, feed pipe, discharge hopper and discharge pipe, the top end and bottom end of connecting box are fixedly communicated with feed pipe and discharge hopper respectively, the top end of discharge pipe is fixedly communicated with discharge hopper, the bottom end of connecting box is fixedly embedded and installed with filter screen plate, the top of filter screen plate is provided with cleaning assembly.The utility model filters polyphenyl sulfide resin by filter screen plate, stepping motor works drives screw rod to rotate, to drive first plug block and pressing plate horizontal movement, to adjust discharge speed, while pressing plate can drive two bristle plates horizontal rightward movement, the bristle on two bristle plates is cleaned to the block adhered on filter screen plate, easy to operate, it is convenient to clean and scatter block, and use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of polyphenylene sulfide resin processing technology, and more specifically, to a discharge structure of a polyphenylene sulfide resin polymerization reactor. Background Technology

[0002] Polyphenylene sulfide (PPS) resin, as a high-performance thermoplastic engineering plastic, is widely used in electronics, automotive manufacturing, aerospace, and other fields due to its excellent high-temperature resistance, corrosion resistance, and flame retardancy. Currently, the industrial production of PPS resin mainly employs the sodium sulfide method or the sulfur solution method, synthesizing high molecular weight PPS through a polycondensation reaction in a polymerization reactor.

[0003] A search revealed that Chinese patent CN217568635U discloses a discharge device for polyphenylene sulfide resin polymerization reactors, comprising a first polymerization reactor, a second polymerization reactor, a slurry storage tank, a first pipeline discharge filter, a second pipeline discharge filter, and a first sight glass. The first polymerization reactor has a first nitrogen pipeline fixedly connected to its top air inlet, and the second polymerization reactor has a second nitrogen pipeline fixedly connected to its top air inlet. This utility model has a reasonable and compact structure, is easy to use, and makes it easy to discharge materials from the polymerization reactor, with short processing time, small footprint, low maintenance cost, and low labor load. It is safe, labor-saving, simple, and efficient.

[0004] When the above-mentioned discharge device is in use, it uses a pipe discharge filter with a fixed filter screen. Although it can intercept lumps, it requires manual cleaning periodically. As production continues, the lumps intercepted by the filter screen will accumulate and gradually clog the pores of the filter screen, increasing the discharge resistance and reducing the discharge efficiency. At the same time, when cleaning manually, it is necessary to stop the operation of the discharge device, close the relevant valves, and then open the manhole of the filter for cleaning. This process is not only cumbersome to operate, but also consumes manpower and time. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a discharge structure for a polyphenylene sulfide resin polymerization reactor, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a discharge structure for a polyphenylene sulfide resin polymerization reactor, comprising a connecting box, a feed pipe, a discharge hopper, and a discharge pipe. The top and bottom ends of the connecting box are fixedly connected to the feed pipe and the discharge hopper, respectively. The top end of the discharge pipe is fixedly connected to the discharge hopper. A filter plate is fixedly embedded in the bottom end of the connecting box. A cleaning assembly is provided on the top of the filter plate. The cleaning assembly includes a stepper motor, a lead screw, two sliders, a slide rod, a U-shaped plate, a first insert, a pressure plate, two brush plates, and two second inserts. The stepper motor is fixedly installed on one side of the connecting box, and the output shaft end of the stepper motor is fixedly connected to the lead screw. Both ends of the lead screw are movably connected to the connecting box via bearings. Both ends of the slide rod are fixedly connected to the connecting box. The two sliders are movably sleeved on the lead screw and the slide rod, respectively. The bottom ends of the two sliders are fixedly connected to the U-shaped plate. The opposing sides of the two brush plates are in contact with the pressure plate.

[0007] Furthermore, the bottom end of the first insert is fixedly connected to the pressure plate, and the top end of the first insert extends into the interior of the U-shaped plate.

[0008] Furthermore, the bottom ends of the two second inserts are respectively fixedly connected to the two brush plates, and a locking bolt is provided between the two second inserts. The two second inserts, the U-shaped plate and the first insert are all fixed together by the locking bolt.

[0009] Furthermore, each of the two second insert blocks is movably fitted with a limiting frame, and the bottom end of each limiting frame is fixedly connected to the pressure plate.

[0010] It can be seen that the above technical solution is designed to facilitate the limiting of the second insertion block.

[0011] Furthermore, the front of the connecting box is movably connected to a lid via a snap fastener, which facilitates the removal of the two brush plates.

[0012] Furthermore, a thermometer is fixedly installed on the box cover, and a heater is provided on the rear side of the thermometer, and the heater is fixedly installed on the rear side of the connecting box.

[0013] It can be seen that the above technical solution is designed to prevent polyphenylene sulfide from sticking together due to temperature reduction.

[0014] Furthermore, an air inlet pipe is fixedly connected to the outer side of the discharge hopper, and an air outlet pipe is fixedly connected to the other side of the connecting box.

[0015] As can be seen, in the above technical solution, nitrogen enters the discharge hopper through the inlet pipe, enters the connecting box through the filter screen, and is finally discharged through the outlet pipe, forming a complete air duct that can prevent material oxidation.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model filters polyphenylene sulfide resin through a filter screen plate. The stepper motor drives the lead screw to rotate, thereby driving the first insert block and the pressure plate to move horizontally, thus adjusting the discharge speed. At the same time, the pressure plate can drive the two brush plates to move horizontally to the right. The brushes on the two brush plates clean the lumps adhering to the filter screen plate. The operation is simple, it is easy to clean and break up the lumps, and the effect is good.

[0018] 2. This utility model can detect the temperature inside the connection box using a thermometer. When the temperature is low, the heater is activated. The heater heats the polyphenylene sulfide resin inside the connection box, thereby preventing the polyphenylene sulfide from sticking due to the temperature drop. The box cover can be opened and the pressure plate and two brush plates can be disassembled and replaced. The structure is simple and easy to use. Attached Figure Description

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the connecting box and the filter plate of the present invention, showing the assembly structure.

[0023] Figure 4 This is a schematic diagram of the assembly structure of the connecting box and cleaning components of this utility model;

[0024] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model.

[0025] In the diagram: 1. Connecting box; 2. Feed pipe; 3. Discharge hopper; 4. Discharge pipe; 5. Cleaning assembly; 6. Box cover; 7. Thermometer; 8. Air outlet pipe; 9. Air inlet pipe; 10. Heater; 11. Filter plate; 501. Stepper motor; 502. Lead screw; 503. Slider; 504. Slide bar; 505. U-shaped plate; 506. First insert block; 507. Pressure plate; 508. Brush plate; 509. Second insert block; 510. Locking bolt; 511. Limiting frame. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Refer to the instruction manual appendix Figure 1-5 This embodiment of a polyphenylene sulfide resin polymerization reactor discharge structure includes a connecting box 1, a feed pipe 2, a discharge hopper 3, and a discharge pipe 4. The top and bottom ends of the connecting box 1 are fixedly connected to the feed pipe 2 and the discharge hopper 3, respectively. The top end of the discharge pipe 4 is fixedly connected to the discharge hopper 3. A filter screen plate 11 is fixedly embedded in the bottom end of the connecting box 1. A cleaning assembly 5 is provided on the top of the filter screen plate 11. The cleaning assembly 5 includes a stepper motor 501, a lead screw 502, two sliders 503, a slide bar 504, a U-shaped plate 505, a first insert block 506, and a pressure plate 507. Two brush plates 508 and two second insert blocks 509 are provided. A stepper motor 501 is fixedly installed on one side of the connecting box 1, and the output shaft end of the stepper motor 501 is fixedly connected to the lead screw 502. Both ends of the lead screw 502 are movably connected to the connecting box 1 through bearings. Both ends of the slide rod 504 are fixedly connected to the connecting box 1. Two sliders 503 are movably sleeved on the lead screw 502 and the slide rod 504, respectively, and the bottom ends of the two sliders 503 are fixedly connected to the U-shaped plate 505. The opposite sides of the two brush plates 508 are in contact with the pressure plate 507.

[0028] Furthermore, the bottom end of the first insert 506 is fixedly connected to the pressure plate 507, and the top end of the first insert 506 extends into the interior of the U-shaped plate 505. The bottom ends of the two second inserts 509 are fixedly connected to the two brush plates 508 respectively. A locking bolt 510 is provided between the two second inserts 509, and the two second inserts 509, the U-shaped plate 505 and the first insert 506 are all fixed together by the locking bolt 510. A limiting frame 511 is movably sleeved on each of the two second inserts 509, and the bottom ends of the two limiting frames 511 are fixedly connected to the pressure plate 507.

[0029] Furthermore, the front side of the connecting box 1 is movably connected to the box cover 6 via a snap fastener. The box cover 6 serves to facilitate the removal of the two brush plates 508. A thermometer 7 is fixedly installed on the box cover 6, and a heater 10 is provided on the rear side of the thermometer 7. The heater 10 is fixedly installed on the rear side of the connecting box 1.

[0030] Furthermore, an air inlet pipe 9 is fixedly connected to the outside of the discharge hopper 3, and an air outlet pipe 8 is fixedly connected to the other side of the connecting box 1.

[0031] The temperature inside the connecting box 1 can be detected by thermometer 7. When the temperature is low, heater 10 is activated to heat the polyphenylene sulfide resin inside the connecting box 1, thereby preventing the polyphenylene sulfide from sticking due to temperature drop. The box cover 6 is opened and the fixing between brush plate 508, pressure plate 507 and U-shaped plate 505 is released by locking bolt 510. Pressure plate 507 and the two brush plates 508 can be disassembled and replaced. The structure is simple and easy to use. Nitrogen enters the discharge hopper 3 through the air inlet pipe 9 and enters the connecting box 1 through the filter plate 11. Finally, it is discharged through the air outlet pipe 8, forming a complete air duct, which can avoid material oxidation. When the brush plate 508 cleans the filter plate 11, the back-and-forth movement of the brush plate 508 can effectively break up the lumps. The continuous flow of material will also disperse the lumps, preventing the filter plate 11 in this area from being seriously blocked. It has little impact on nitrogen flow and anti-oxidation effect.

[0032] The usage method of this embodiment is as follows:

[0033] In use, the feed pipe 2 is installed at the discharge end of the polyphenylene sulfide resin polymerization reactor using bolts. The polyphenylene sulfide resin enters the connecting box 1 through the feed pipe 2. The filter plate 11 filters the polyphenylene sulfide resin, and the filtered polyphenylene sulfide resin flows out of the connecting box 1 through the discharge hopper 3 and the discharge pipe 4. The stepper motor 501 is started, and the stepper motor 501 drives the lead screw 502 to rotate. Since the lead screw 502 is threadedly connected to one of the sliders 503, and the other slider 503 and the slide rod 504 cooperate to restrict the rotation of the U-shaped plate 505, the lead screw 502 can drive both sliders 505. 03 and U-shaped plate 505 move horizontally, thereby driving the first insert block 506 and pressure plate 507 to move horizontally. By adjusting the position of pressure plate 507 on filter screen plate 11, the discharge speed can be adjusted. At the same time, pressure plate 507 can drive two brush plates 508 to move horizontally to the right. The bristles on the two brush plates 508 clean the lumps adhering to the filter screen plate 11 and move them to the inside side of the connecting box 1. Similarly, stepper motor 501 reverses to drive the two brush plates 508 to move horizontally to the left. The operation is simple, it is easy to clean and break up lumps, and the effect is good.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures, nor will they be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A discharge structure for a polyphenylene sulfide resin polymerization reactor, comprising a connecting box (1), a feed pipe (2), a discharge hopper (3), and a discharge pipe (4), wherein the top and bottom ends of the connecting box (1) are fixedly connected to the feed pipe (2) and the discharge hopper (3), respectively, and the top end of the discharge pipe (4) is fixedly connected to the discharge hopper (3), characterized in that: A filter plate (11) is fixedly embedded in the bottom of the connecting box (1). A cleaning assembly (5) is provided on the top of the filter plate (11). The cleaning assembly (5) includes a stepper motor (501), a lead screw (502), two sliders (503), a slide rod (504), a U-shaped plate (505), a first insert (506), a pressure plate (507), two brush plates (508), and two second inserts (509). The stepper motor (501) is fixedly installed on one side of the connecting box (1), and the stepper motor... The output shaft end of the motor (501) is fixedly connected to the lead screw (502). Both ends of the lead screw (502) are movably connected to the connecting box (1) through bearings. Both ends of the slide rod (504) are fixedly connected to the connecting box (1). The two sliders (503) are respectively movably sleeved on the lead screw (502) and the slide rod (504), and the bottom ends of the two sliders (503) are fixedly connected to the U-shaped plate (505). The opposite sides of the two brush plates (508) are in contact with the pressure plate (507).

2. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 1, characterized in that: The bottom end of the first insert (506) is fixedly connected to the pressure plate (507), and the top end of the first insert (506) extends into the interior of the U-shaped plate (505).

3. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 1, characterized in that: The bottom ends of the two second inserts (509) are respectively fixedly connected to the two brush plates (508). A locking bolt (510) is provided between the two second inserts (509), and the two second inserts (509), the U-shaped plate (505) and the first insert (506) are all fixed together by the locking bolt (510).

4. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 3, characterized in that: Each of the two second inserts (509) is movably fitted with a limiting frame (511), and the bottom ends of the two limiting frames (511) are fixedly connected to the pressure plate (507).

5. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 1, characterized in that: The front side of the connecting box (1) is connected to the box cover (6) by a snap fastener. The box cover (6) facilitates the removal of the two brush plates (508).

6. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 5, characterized in that: A thermometer (7) is fixedly installed on the box cover (6), and a heater (10) is provided on the rear side of the thermometer (7), and the heater (10) is fixedly installed on the rear side of the connecting box (1).

7. The discharge structure of the polyphenylene sulfide resin polymerization reactor according to claim 1, characterized in that: An air inlet pipe (9) is fixedly connected to the outside of the discharge hopper (3), and an air outlet pipe (8) is fixedly connected to the other side of the connecting box (1).

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