Polyphenylene sulfide resin material conveying device

Abstract

The utility model relates to the technical field of polyphenylene sulfide resin raw material conveying, and discloses a polyphenylene sulfide resin material conveying device which comprises a centrifugal pump, a treatment box is arranged on one side of the centrifugal pump, one end of a material pumping pipe of the centrifugal pump is connected with the bottom face of the treatment box, and the top face of the treatment box is communicated and fixedly provided with a feeding pipe. A pretreatment assembly is arranged in the treatment box and comprises stirring blades arranged in the treatment box. According to the utility model, the heating treatment box and the filtering copper plate are heated through the heating sleeve, so that polyphenylene sulfide resin slurry entering the treatment box and the heated polyphenylene sulfide resin slurry molecules move faster and pass through filtering holes of the filtering copper plate; and then the concentration of each area is dispersed through rotary stirring and mixing of the stirring blades to reduce precipitation, so that the flowability is further improved, the viscosity of the polyphenylene sulfide resin slurry is effectively reduced, and the polyphenylene sulfide resin slurry is prevented from being blocked in the centrifugal pump.

Description

Technical Field

[0001] This utility model relates to the field of polyphenylene sulfide resin raw material conveying technology, and in particular to a polyphenylene sulfide resin material conveying device. Background Technology

[0002] Polyphenylene sulfide (PPS) solid particles are characterized by large particle size and wide particle size distribution. Centrifugal pumps are required to transport slurries containing PPS particles at a low concentration, which needs to be controlled below 20% in order to be transported by the centrifugal pump. After the centrifugal pump is started and the inlet valve is opened, PPS solids will accumulate at the bottom of the tank and in the pump inlet pipeline. The solid content can reach 50% when the pump is first started, which will cause the centrifugal pump to be blocked and the material transport to stop.

[0003] An existing novel conveying device for transporting polyphenylene sulfide slurry using a centrifugal pump (publication number: CN219176578U) has at least the following drawbacks: This device dilutes the original polyphenylene sulfide slurry by adding a liquid medium to the inlet of the centrifugal pump's inlet pipeline. However, since the concentration of the input liquid medium is different from that of the polyphenylene sulfide slurry, it may affect the production quality of the polyphenylene sulfide resin. Furthermore, the newly input liquid medium is not fully stirred and mixed with the original polyphenylene sulfide slurry, resulting in uneven concentration of the polyphenylene sulfide slurry input into the centrifugal pump, leading to local precipitation and potentially causing blockage. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyphenylene sulfide resin material conveying device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A polyphenylene sulfide resin material conveying device includes a centrifugal pump, a processing box is provided on one side of the centrifugal pump, one end of the centrifugal pump's suction pipe is connected to the bottom surface of the processing box, a feeding pipe is connected to and fixed on the top surface of the processing box, a pretreatment component is provided inside the processing box, the pretreatment component includes a stirring blade provided inside the processing box, a heating jacket is fixed on the outer wall of the processing box, and a filter copper plate is fixed at two-thirds of the height inside the processing box.

[0007] As a further embodiment of this utility model, a drive motor is fixed on the top surface of the processing box, and the output shaft of the drive motor extends through into the interior of the processing box. The output shaft end of the drive motor is fixed to the top end of the stirring blade. Four extension holes are opened on the outer wall of the processing box, and the four ends of the outer wall of the filter copper plate are respectively fixed to the interior of the four extension holes. The end of the filter copper plate abuts against the inner wall of the heating jacket.

[0008] As a further embodiment of this utility model, a level gauge is fixed on the top surface of the processing box, the detection end of the level gauge extends through into the interior of the processing box, and the detection bottom end of the level gauge is close to the top surface of the filter copper plate.

[0009] As a further embodiment of this utility model, a pressure balancing valve is connected to and fixed on the top surface of the processing box, a solenoid valve is connected to and fixed on the bottom end of the processing box, and one end of the centrifugal pump suction pipe is connected to and fixed on the bottom surface of the solenoid valve.

[0010] As a further embodiment of this utility model, a scraper is connected to the outer wall of the stirring blade, and both the left and right sides of the scraper abut against the inner wall of the processing box.

[0011] As a further embodiment of this utility model, the scraper frame is internally fixed with three fixing strips, which are connected to the outer wall of the stirring blade via a one-way bearing.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Before the polyphenylene sulfide (PPS) resin slurry is pumped into the centrifugal pump, the heating jacket heats the heat treatment chamber and the filter copper plate. This causes the PPS resin slurry molecules inside the treatment chamber to move faster, reducing internal friction and increasing fluidity. The slurry passes through the filter holes of the filter copper plate and is then mixed and dispersed by the rotating agitator blades to reduce precipitation, further increasing fluidity and effectively reducing the viscosity of the PPS resin slurry. This eliminates the need to add additional PPS resin slurry, thus avoiding any impact on production quality. The slurry is then pumped into the centrifugal pump, effectively preventing blockages within the pump. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a polyphenylene sulfide resin material conveying device proposed in this utility model;

[0015] Figure 2 This is a three-dimensional disassembled structural diagram of a polyphenylene sulfide resin material conveying device proposed in this utility model;

[0016] Figure 3 This is a three-dimensional sectional view of the processing box of a polyphenylene sulfide resin material conveying device proposed in this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the scraper frame of a polyphenylene sulfide resin material conveying device proposed in this utility model.

[0018] In the diagram: 1. Centrifugal pump; 101. Processing tank; 102. Feeding pipe; 2. Stirring blade; 201. Heating jacket; 202. Filter copper plate; 203. Drive motor; 204. Extension hole; 205. Level gauge; 3. Pressure balancing valve; 301. Solenoid valve; 4. Scraper; 401. Fixing strip. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4 As shown, a polyphenylene sulfide resin material conveying device includes a centrifugal pump 1, a processing tank 101 is provided on one side of the centrifugal pump 1, one end of the centrifugal pump 1's suction pipe is connected to the bottom surface of the processing tank 101, the top surface of the processing tank 101 is connected to and fixed with a feeding pipe 102, a pretreatment component is provided inside the processing tank 101, the pretreatment component includes a stirring blade 2 provided inside the processing tank 101, a heating jacket 201 is fixed to the outer wall of the processing tank 101, and a filter copper plate 202 is fixed inside the processing tank 101 at two-thirds of its height.

[0023] like Figures 2-4As shown, in this embodiment, a drive motor 203 is fixed to the top surface of the processing box 101. The output shaft of the drive motor 203 extends through into the interior of the processing box 101. The output shaft end of the drive motor 203 is fixed to the top end of the stirring blade 2. Four extension holes 204 are provided on the outer wall of the processing box 101. The four ends of the outer wall of the filter copper plate 202 are respectively fixed to the interior of the four extension holes 204. The end of the filter copper plate 202 abuts against the inner wall of the heating sleeve 201. Before the centrifugal pump 1 pumps and delivers the polyphenylene sulfide resin slurry, the heating sleeve 201 heats the processing box 101 and the filter copper plate 202. Heating causes the polyphenylene sulfide resin slurry entering the processing tank 101 to move faster, reducing internal friction and increasing fluidity. It passes through the filter holes of the copper filter plate 202 and is then mixed and dispersed by the rotating stirring blade 2 to reduce precipitation and further increase fluidity. This effectively reduces the viscosity of the polyphenylene sulfide resin slurry without the need to add extra concentration of polyphenylene sulfide resin slurry, thus avoiding affecting production quality. It then enters the centrifugal pump 1 for transportation, effectively preventing the polyphenylene sulfide resin slurry from clogging inside the centrifugal pump 1.

[0024] like Figures 2-4 As shown in this embodiment, a level gauge 205 is fixed on the top surface of the processing tank 101. The detection end of the level gauge 205 extends through into the interior of the processing tank 101, and the detection bottom end of the level gauge 205 is close to the top surface of the filter copper plate 202. By setting the level gauge 205, the liquid level of the polyphenylene sulfide resin slurry inside the processing tank 101 can be monitored in real time. When the liquid level of the polyphenylene sulfide resin slurry is at a certain height inside the processing tank 101, it indicates that there may be a blockage on the filter copper plate 202 and the current heating temperature of the heating jacket 201 is insufficient. At this time, the heating temperature of the heating jacket 201 can be increased to raise the temperature of the polyphenylene sulfide resin slurry, increase its fluidity, and ensure the conveying speed of the polyphenylene sulfide resin slurry.

[0025] like Figures 2-4 As shown, in this embodiment, the top surface of the processing tank 101 is connected to and fixed with a pressure balancing valve 3, the bottom end of the processing tank 101 is connected to and fixed with a solenoid valve 301, and one end of the centrifugal pump 1's suction pipe is connected to and fixed with the bottom surface of the solenoid valve 301. By setting the pressure balancing valve 3, the internal air pressure of the processing tank 101 can be balanced to ensure the normal delivery of polyphenylene sulfide resin slurry.

[0026] like Figures 2-4As shown in this embodiment, the outer wall of the stirring blade 2 is connected to a scraper 4. Both the left and right sides of the scraper 4 are in contact with the inner wall of the processing tank 101. By setting the scraper 4 to scrape the inner wall of the processing tank 101 when rotating, the polyphenylene sulfide resin slurry on the inner wall of the processing tank 101 is scraped off when the polyphenylene sulfide resin slurry is about to be transported, thus preventing the polyphenylene sulfide resin slurry from sticking to the inner wall of the processing tank 101 and being unable to be transported away.

[0027] like Figures 2-4 As shown in this embodiment, the scraper 4 is internally fixed with three fixing strips 401. The fixing strips 401 are connected to the outer wall of the stirring blade 2 through one-way bearings. By using one-way bearings to connect the fixing strips 401 to the outer wall of the stirring blade 2, the scraper 4 only starts to rotate and scrape material when the stirring blade 2 rotates in the opposite direction. This prevents the scraper 4 from rotating with the stirring blade 2 and causing significant wear to the inner wall of the processing tank 101, thus affecting the service life of the equipment.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, polyphenylene sulfide resin slurry is fed into the processing tank 101 through the feeding pipe 102. At this time, the polyphenylene sulfide resin slurry falls onto the filter copper plate 202. At this time, the polyphenylene sulfide resin slurry has a high viscosity and it is difficult for the polyphenylene sulfide resin slurry to pass through the filter copper plate 202. At this time, the heating jacket 201 is started to heat the processing tank 101 and the filter copper plate 202 respectively. At this time, the polyphenylene sulfide resin slurry is heated and the molecular movement is faster, reducing the internal friction and thus increasing the fluidity. Subsequently, the polyphenylene sulfide resin slurry passes through the filter copper plate 202. At this time, the drive motor 203 is started to drive the stirring blade 2 to rotate clockwise, thereby rotating and stirring the polyphenylene sulfide resin slurry, thereby dispersing the concentration of the polyphenylene sulfide resin slurry in different areas and reducing the occurrence of precipitation, thereby further increasing the fluidity. At this time, the solenoid valve 301 is opened, and then the centrifugal pump 1 is started to transport the processed polyphenylene sulfide resin slurry. During this process, the pressure is balanced. Valve 3 balances the internal air pressure of the treatment tank 101, ensuring the normal transport of polyphenylene sulfide resin slurry. Level gauge 205 monitors the liquid level of the polyphenylene sulfide resin slurry inside the treatment tank 101 in real time. When the liquid level of the polyphenylene sulfide resin slurry reaches a certain height inside the treatment tank 101, it indicates that there may be blockage on the filter copper plate 202, and the current heating temperature of the heating jacket 201 is insufficient. In this case, the heating temperature of the heating jacket 201 can be increased to raise the temperature of the polyphenylene sulfide resin slurry, increase its fluidity, and maintain its proper function. To ensure the conveying speed of the polyphenylene sulfide resin slurry, when the conveying operation of the polyphenylene sulfide resin slurry is about to be completed, the drive motor 203 is started to drive the stirring blade 2 to rotate counterclockwise. With the fixed bar 401 connected to the outer wall of the stirring blade 2 by a one-way bearing, the scraper 4 rotates counterclockwise with the stirring blade 2 and scrapes the inner wall of the processing tank 101, so that the polyphenylene sulfide resin slurry on the inner wall of the processing tank 101 is scraped off, preventing the polyphenylene sulfide resin slurry from sticking to the inner wall of the processing tank 101 and being unable to be conveyed away.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polyphenylene sulfide resin material conveying device, comprising a centrifugal pump (1), characterized in that, A processing tank (101) is provided on one side of the centrifugal pump (1). One end of the centrifugal pump (1) suction pipe is connected to the bottom surface of the processing tank (101). The top surface of the processing tank (101) is connected to and fixed with a feeding pipe (102). A pretreatment component is provided inside the processing tank (101). The pretreatment component includes a stirring blade (2) provided inside the processing tank (101). A heating jacket (201) is fixed on the outer wall of the processing tank (101). A filter copper plate (202) is fixed inside the processing tank (101) at two-thirds of its height.

2. The polyphenylene sulfide resin material conveying device according to claim 1, characterized in that, A drive motor (203) is fixed on the top surface of the processing box (101). The output shaft of the drive motor (203) extends through the interior of the processing box (101). The output shaft end of the drive motor (203) is fixed to the top of the stirring blade (2). Four extension holes (204) are opened on the outer wall of the processing box (101). The four ends of the outer wall of the filter copper plate (202) are fixed to the interior of the four extension holes (204) respectively. The end of the filter copper plate (202) abuts against the inner wall of the heating sleeve (201).

3. The polyphenylene sulfide resin material conveying device according to claim 2, characterized in that, A level gauge (205) is fixed on the top surface of the processing box (101). The detection end of the level gauge (205) extends through into the interior of the processing box (101), and the detection bottom end of the level gauge (205) is close to the top surface of the filter copper plate (202).

4. The polyphenylene sulfide resin material conveying device according to claim 3, characterized in that, The top surface of the processing box (101) is connected to and fixed with a pressure balancing valve (3), the bottom end of the processing box (101) is connected to and fixed with a solenoid valve (301), and one end of the centrifugal pump (1) suction pipe is connected to and fixed with the bottom surface of the solenoid valve (301).

5. The polyphenylene sulfide resin material conveying device according to claim 4, characterized in that, The outer wall of the stirring blade (2) is connected to a scraper (4), and the left and right sides of the scraper (4) are in contact with the inner wall of the processing box (101).

6. The polyphenylene sulfide resin material conveying device according to claim 5, characterized in that, The scraper (4) has three fixing strips (401) inside, and the fixing strips (401) are connected to the outer wall of the stirring blade (2) through a one-way bearing.

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