A polypropylene powder purification device

Abstract

The present invention discloses a polypropylene powder purification device, which relates to the technical field of polypropylene powder processing. The polypropylene powder purification device includes a purification chamber, one side of which is connected to a conveying pipe for conveying heated nitrogen and a feeding pipe for feeding polypropylene powder. In the process of purifying the polypropylene powder, the present invention cooperates with the supporting assembly, the rotating assembly and the swinging assembly to increase the flow path of the heated nitrogen inside the fan-shaped supporting frame through multiple groups of staggered chambers, making it easier for the heated nitrogen to fully contact the polypropylene powder inside different chambers, thereby improving the utilization rate of the heated nitrogen. In addition, the present invention can also break the original electrostatic balance through the movement of the polypropylene powder and change the relative positions between the powder particles, thereby redistributing the charges between the charged particles, thereby weakening or eliminating the electrostatic adsorption force, so that the polypropylene powder is fully dispersed during the purification process, thereby improving the purification efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of polypropylene powder processing, in particular to a polypropylene powder purification device. Background Art

[0002] The polypropylene powder purification device is mainly used to remove impurities and unreacted propylene monomers from polypropylene powder to improve the quality and purity of polypropylene products. During the purification process of polypropylene powder using the polypropylene powder purification device, it is connected to the powder purification bin through a nitrogen delivery pipeline. The heated nitrogen is used to strip the polypropylene powder in the powder purification bin, thereby achieving the effect of purifying the polypropylene powder.

[0003] In the process of using heated nitrogen to purify polypropylene powder, firstly, the polypropylene powder inside the purification chamber is in a laid state. When the heated nitrogen passes through the laid polypropylene powder, the heated nitrogen flow path is short, resulting in a low utilization rate of the heated nitrogen. Secondly, during the transportation process, the polypropylene powder has a large amount of polymer compounds and a high resistivity, which is prone to static electricity and adhesion and even agglomeration, making it difficult for the polypropylene powder to be fully dispersed during the purification process, reducing the purification efficiency and affecting the product quality. For this reason, we propose a polypropylene powder purification device. Summary of the Invention

[0004] The object of the present invention is to provide a polypropylene powder purification device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a polypropylene powder purification device, comprising a purification chamber, one side of which is connected to a delivery pipe for delivering heated nitrogen and a feed pipe for feeding polypropylene powder, an upper end of the purification chamber is provided with an exhaust pipe for discharging excess gas after purification treatment, and a lower end of the purification chamber is provided with a discharge pipe for discharging the purified material, and further comprising:

[0006] An annular plate fixed to the interior of the purification chamber, the annular plate being located between the conveying pipe and the feeding pipe, the inner side of the annular plate being provided with multiple groups of bearing assemblies for carrying the conveyed polypropylene powder, and the multiple groups of bearing assemblies being arranged in a circular array, the interior of the purification chamber being provided with a rotating assembly for assisting the rotation of each group of bearing assemblies, and the interior of the purification chamber being provided with a swinging assembly for causing the bearing assemblies to swing back and forth up and down during the rotation of each group of bearing assemblies;

[0007] The supporting assembly includes a fan-shaped plate, a fan-shaped supporting frame is fixed above the fan-shaped plate, a plurality of groups of through-holes for assisting the passage of heated nitrogen are provided on the fan-shaped plate, the through-holes are communicated with the interior of the fan-shaped supporting frame, a plurality of groups of guide plates are fixed in an up-and-down staggered state inside the fan-shaped supporting frame, each group of the guide plates is arranged in a downwardly inclined state, and a plurality of groups of up-and-down staggered chambers are formed in the interior of the fan-shaped supporting frame under the dividing action of the plurality of groups of guide plates, and a discharge assembly for assisting in the discharge of materials after purification treatment is provided on the fan-shaped supporting frame.

[0008] Preferably, the rotating assembly includes a fixed frame fixed inside the purification chamber, a rotating shaft is rotatably connected to the fixed frame, the rotating shaft is located on the inner side of each group of fan-shaped plates, and a connecting assembly for assisting the connection of the fan-shaped plates is provided between the fan-shaped plates and the outer side of the rotating shaft, and a driving motor for driving the rotating shaft is installed at the bottom of the fixed frame.

[0009] Preferably, the connecting assembly includes a support frame fixed to the outside of the rotating shaft, the support frame is rotatably connected to a rotatable and resetting torsion shaft, a connecting block is fixed to the outside of the torsion shaft, and one end of the connecting block is connected and fixed to the inner side of the fan-shaped plate.

[0010] Preferably, the swing assembly includes an L-shaped linkage plate fixed to the lower end of the connecting block, a transmission pin is fixed on the L-shaped linkage plate, two groups of fixing rings are sleeved on the outer side of the rotating shaft, the two groups of fixing rings and the support frame are connected and fixed by a connecting frame, the transmission pin is located between the two groups of fixing rings, and multiple groups of pushing blocks arranged in a circular array are fixed on the fixing rings, and the pushing blocks on the two groups of fixing rings are arranged in a staggered state, and the pushing blocks are provided with an inclined surface for resisting the end of the transmission pin for transmission.

[0011] Preferably, the discharging assembly includes a plurality of groups of discharging troughs opened on the outside of the fan-shaped supporting frame, and each group of the discharging troughs is respectively communicated with each group of chambers inside the fan-shaped supporting frame. The outside of the fan-shaped supporting frame is connected to an arc-shaped baffle for shielding the discharging trough through a telescopic assembly. The arc-shaped baffle is provided with a plurality of groups of discharging holes for assisting discharging, and the support frame is provided with a traction and pulling assembly for pulling the arc-shaped baffle.

[0012] Preferably, the telescopic assembly includes a fixed plate fixed to the outside of the fan-shaped supporting frame, a transmission plate is arranged below the fixed plate, the transmission plate and the arc-shaped baffle are connected and fixed by a connecting plate, and a reset assembly is arranged between the fixed plate and the transmission plate for resetting the transmission plate after pulling.

[0013] Preferably, the traction and pulling assembly includes an L-shaped frame fixed between the connecting block and the upper end of the fan-shaped supporting frame, and a traction rope is slidably connected to the L-shaped frame through a mounting hole. One end of the traction rope passes through the fixed plate and is fixed to the transmission plate, and the other end of the traction rope is fixed with a mounting seat, and the mounting seat is fixed on the support frame. The mounting seat and the fixed plate are respectively provided with a first support assembly and a second support assembly for supporting the traction rope during the transmission process.

[0014] Preferably, the reset assembly includes multiple groups of T-shaped rods slidably connected to the fixed plate, one end of each group of T-shaped rods is fixed to the transmission plate, and a spring is sleeved on the outer side of each group of T-shaped rods, and the two ends of the spring are respectively connected to the fixed plate and the transmission plate.

[0015] Preferably, the first supporting assembly includes a first operating frame fixed on the mounting seat, and the first operating frame is rotatably connected to a first supporting wheel for supporting a transmission traction rope.

[0016] Preferably, the second supporting assembly includes a second operating frame fixed to the upper end of the fixed plate, and the second operating frame is rotatably connected to a second supporting wheel for supporting the transmission traction rope.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the process of purifying polypropylene powder, the present invention cooperates with the supporting assembly, the rotating assembly and the swinging assembly to increase the flow path of the heated nitrogen inside the fan-shaped supporting frame through multiple groups of staggered chambers, making it easier for the heated nitrogen to fully contact with the polypropylene powder inside different chambers, thereby improving the utilization rate of the heated nitrogen. In addition, the present invention can also break the original electrostatic balance by changing the relative positions between the powder particles through the movement of the polypropylene powder, redistribute the charges between the charged particles, thereby weakening or eliminating the electrostatic adsorption force, so that the polypropylene powder is fully dispersed during the purification process, and the purification efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the purification chamber of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the bearing assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the fan-shaped carrying frame of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the rotating assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection assembly structure of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the swing assembly of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the traction and pulling assembly and the first supporting assembly of the present invention;

[0027] Figure 9 It is a schematic structural diagram of the discharge assembly, telescopic assembly, reset assembly and second support assembly of the present invention;

[0028] Figure 10 for Figure 8 Enlarged view of point A in the middle;

[0029] Figure 11 for Figure 9 Enlarged view of point B in the middle;

[0030] Figure 12 This is a schematic diagram of the load-bearing assembly of the present invention before it swings;

[0031] Figure 13 This is a schematic diagram of the load-bearing assembly of the present invention in a downward swinging state;

[0032] Figure 14 This is a schematic diagram of the upward swinging state of the bearing assembly of the present invention.

[0033] In the figure: 101, purification chamber; 102, conveying pipe; 103, discharge pipe; 104, exhaust pipe; 105, feed pipe; 2, annular plate; 301, fan-shaped plate; 302, fan-shaped bearing frame; 303, perforation; 304, guide plate; 401, rotating shaft; 402, fixing frame; 403, driving motor; 501, supporting frame; 502, torque shaft; 503, connecting block; 601, L-shaped linkage plate; 602, transmission pin; 603, fixing ring; 604, Connecting frame; 605, pushing block; 606, inclined surface; 701, discharge chute; 702, arc-shaped baffle; 703, discharge hole; 801, fixing plate; 802, transmission plate; 803, connecting plate; 901, T-bar; 902, spring; 1001, L-shaped frame; 1002, mounting hole; 1003, traction rope; 1004, mounting seat; 1101, first operating frame; 1102, first support wheel; 1201, second operating frame; 1202, second support wheel. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figures 1-14 The polypropylene powder purification device shown in the figure includes a purification chamber 101. One side of the purification chamber 101 is connected to a delivery pipe 102 for delivering heated nitrogen and a feed pipe 105 for feeding polypropylene powder. The upper end of the purification chamber 101 is provided with an exhaust pipe 104 for discharging excess gas after purification treatment. The lower end of the purification chamber 101 is provided with a discharge pipe 103 for discharging the purified material. The device also includes:

[0037] An annular plate 2 is fixed inside the purification chamber 101. The annular plate 2 is located between the conveying pipe 102 and the feeding pipe 105. A plurality of bearing assemblies for carrying the conveyed polypropylene powder are provided on the inner side of the annular plate 2, and the plurality of bearing assemblies are arranged in a circular array. A rotating assembly for assisting the rotation of each bearing assembly is provided inside the purification chamber 101. A swinging assembly is provided inside the purification chamber 101 for causing the bearing assembly to swing back and forth during the rotation of each bearing assembly.

[0038] The supporting assembly includes a fan-shaped plate 301, a fan-shaped supporting frame 302 is fixed above the fan-shaped plate 301, and a plurality of groups of through-holes 303 for auxiliary heating nitrogen to pass through are provided on the fan-shaped supporting frame 301, and the through-holes 303 are communicated with the interior of the fan-shaped supporting frame 302, and a plurality of groups of guide plates 304 are fixed in an up-down staggered state inside the fan-shaped supporting frame 302, and each group of guide plates 304 is arranged in a downwardly inclined state, and the interior of the fan-shaped supporting frame 302 is formed into a plurality of groups of up-down staggered chambers under the dividing action of the plurality of groups of guide plates 304, and a discharge assembly for auxiliary discharge of materials after purification treatment is provided on the fan-shaped supporting frame 302;

[0039] It should be noted here that: during the purification process of polypropylene powder, through the mutual cooperation of the carrying assembly, the rotating assembly and the swinging assembly, the flow path of the heated nitrogen inside the fan-shaped carrying frame 302 can be increased through multiple groups of staggered chambers, which is convenient for the heated nitrogen to fully contact with the polypropylene powder inside different chambers, thereby improving the utilization rate of the heated nitrogen. The movement of the polypropylene powder can also change the relative position between the powder particles, break the original electrostatic balance, and redistribute the charge between the charged particles, thereby weakening or eliminating the electrostatic adsorption force, so that the polypropylene powder is fully dispersed during the purification process and the purification efficiency is improved.

[0040] Preferably, the rotating assembly includes a fixing frame 402 fixed inside the purification chamber 101, and a rotating shaft 401 is rotatably connected to the fixing frame 402. The rotating shaft 401 is located on the inner side of each group of sector plates 301, and a connecting assembly for assisting the connection of the sector plates 301 is provided between the sector plates 301 and the outer side of the rotating shaft 401. A driving motor 403 for driving the rotating shaft 401 is installed at the bottom of the fixing frame 402;

[0041] It should be noted here that: the rotating shaft 401 is driven to rotate by the driving motor 403. During the rotation of the rotating shaft 401, the fan-shaped plate 301 and the fan-shaped supporting frame 302 are driven to rotate synchronously through the connection between the support frame 501, the torsion shaft 502 and the connecting block 503 on the connecting assembly.

[0042] Preferably, the connecting assembly includes a support frame 501 fixed to the outside of the rotating shaft 401, a rotatable and resetting torsion shaft 502 is rotatably connected to the support frame 501, a connecting block 503 is fixed to the outside of the torsion shaft 502, and one end of the connecting block 503 is connected and fixed to the inner side of the sector plate 301;

[0043] It should be noted here that the support frame 501, the torsion shaft 502 and the connecting block 503 facilitate the connection between the rotating shaft 401 and the fan-shaped plate 301, and through the connection, the fan-shaped plate 301 can swing up and down after being subjected to force.

[0044] Preferably, the swing assembly includes an L-shaped linkage plate 601 fixed to the lower end of the connecting block 503, a transmission pin 602 is fixed on the L-shaped linkage plate 601, two sets of fixing rings 603 are sleeved on the outer side of the rotating shaft 401, the two sets of fixing rings 603 and the support frame 501 are connected and fixed by a connecting frame 604, the transmission pin 602 is located between the two sets of fixing rings 603, and multiple sets of pushing blocks 605 arranged in a circular array are fixed on the fixing rings 603, and the pushing blocks 605 on the two sets of fixing rings 603 are arranged in a staggered state. The pushing blocks 605 are provided with an inclined surface 606 for abutting against the end of the driving pin 602 for transmission;

[0045] It should be noted here that: in the process of driving the bearing assembly to rotate, the driving motor 403 is used to drive the rotating shaft 401 to rotate. In the process of rotating the rotating shaft 401, the fan-shaped plate 301 and the fan-shaped bearing frame 302 are driven to rotate synchronously through the connection between the support frame 501, the torsion shaft 502 and the connecting block 503 on the connecting assembly. In the process of rotation, the driving pin 602 is driven to move synchronously through the connection between the connecting block 503 and the L-shaped linkage plate 601. In the process of movement of the driving pin 602, the two ends of the driving pin 602 are sequentially fixed with two sets of fixed rings. The inclined surfaces 606 of the push blocks 605 staggered on 603 are abutted against each other. In the process of the end of the transmission pin 602 abutting against the inclined surface 606, the transmission pin 602, the L-shaped linkage plate 601, the connecting block 503 and the torsion shaft 502 are pushed to move. When the transmission pin 602 does not abut against the inclined surface 606, the connecting block 503, the L-shaped linkage plate 601 and the transmission pin 602 are reset by the resetting action of the torsion shaft 502, because in the process of rotation of the rotating shaft 401, the connecting block 503 is driven to swing back and forth up and down with the torsion shaft 502 as the center through transmission.

[0046] Preferably, the discharge assembly includes a plurality of discharge chutes 701 provided on the outside of the fan-shaped supporting frame 302, each group of discharge chutes 701 is respectively communicated with each group of chambers inside the fan-shaped supporting frame 302, and the outside of the fan-shaped supporting frame 302 is connected to an arc-shaped baffle 702 for shielding the discharge chutes 701 through a telescopic assembly, and the arc-shaped baffle 702 is provided with a plurality of discharge holes 703 for assisting in discharging, and the support frame 501 is provided with a traction and pulling assembly for pulling the arc-shaped baffle 702;

[0047] It should be noted here that: as the sector plate 301 swings downward, the arc-shaped baffle 702 is driven to move upward synchronously by the traction and pulling assembly. After the arc-shaped baffle 702 moves upward, the groups of discharge holes 703 on the arc-shaped baffle 702 are connected with the groups of chambers of the sector-shaped supporting frame 302. Since the sector-shaped supporting frame 302 is in a downwardly tilted state at this time, part of the polypropylene powder after purification in the groups of chambers inside the sector-shaped supporting frame 302 is discharged outward through the discharge holes 703, and the discharged polypropylene powder falls to the bottom of the purification bin 101 through the groups of perforations 303, which facilitates the discharge operation of the purified polypropylene powder.

[0048] It is worth noting that when the fan-shaped supporting frame 302 does not deflect, the discharge chute 701 is blocked by the arc-shaped baffle 702 . At this time, each group of discharge holes 703 is not connected to the interior of the fan-shaped supporting frame 302 .

[0049] Preferably, the telescopic assembly includes a fixed plate 801 fixed to the outside of the fan-shaped carrying frame 302, a transmission plate 802 is provided below the fixed plate 801, the transmission plate 802 is connected and fixed to the arc-shaped baffle 702 via a connecting plate 803, and a reset assembly is provided between the fixed plate 801 and the transmission plate 802 for resetting the transmission plate 802 after being pulled;

[0050] It should be noted that the arc-shaped baffle 702 can move upward and downward by virtue of the functions of the fixing plate 801 , the transmission plate 802 , the connecting plate 803 and the reset assembly.

[0051] Preferably, the traction and pulling assembly includes an L-shaped frame 1001 fixed between the connecting block 503 and the upper end of the fan-shaped carrying frame 302, and a traction rope 1003 is slidably connected to the L-shaped frame 1001 through a mounting hole 1002. One end of the traction rope 1003 passes through the fixed plate 801 and is fixed to the transmission plate 802. The other end of the traction rope 1003 is fixed with a mounting seat 1004, and the mounting seat 1004 is fixed to the support frame 501. The mounting seat 1004 and the fixed plate 801 are respectively provided with a first support assembly and a second support assembly for supporting the traction rope 1003 during the transmission process;

[0052] It should be noted here that: when the supporting assembly rotates and swings downward through the cooperation of the rotating assembly and the swinging assembly, as the fan plate 301 swings downward, the transmission plate 802 is forced to move upward through the traction and pulling action of the traction rope 1003. During the upward movement of the transmission plate 802, the arc baffle 702 is driven to move upward synchronously through the connecting plate 803.

[0053] Preferably, the reset assembly includes a plurality of groups of T-shaped rods 901 slidably connected to the fixed plate 801, one end of each group of T-shaped rods 901 is fixed to the transmission plate 802, and a spring 902 is sleeved on the outer side of each group of T-shaped rods 901, and the two ends of the spring 902 are respectively connected to the fixed plate 801 and the transmission plate 802;

[0054] It should be noted here that: during the movement of the transmission plate 802, each group of T-shaped rods 901 is driven to slide on the fixed plate 801 and the spring 902 is deformed by force to generate elastic force. The elastic force of the spring 902 facilitates the reset of the transmission plate 802 after movement.

[0055] Preferably, the first support assembly includes a first operating frame 1101 fixed on the mounting base 1004, and a first supporting wheel 1102 for supporting the transmission traction rope 1003 is rotatably connected to the first operating frame 1101;

[0056] It should be noted here that the support of the traction rope 1003 by the first support wheel 1102 on the first operating frame 1101 facilitates stable traction transmission of the traction rope 1003.

[0057] Preferably, the second support assembly includes a second operating frame 1201 fixed to the upper end of the fixed plate 801, and a second supporting wheel 1202 for supporting the transmission traction rope 1003 is rotatably connected to the second operating frame 1201;

[0058] It should be noted here that the support of the traction rope 1003 by the second support wheel 1202 on the second operating frame 1201 facilitates stable traction transmission of the traction rope 1003.

[0059] In this solution: A polypropylene powder purification device includes the following steps:

[0060] During the purification process of the polypropylene powder, the polypropylene powder is transported toward the interior of the purification bin 101 through the feeding pipe 105. During the transportation process, the polypropylene powder is guided by the feeding pipe 105 to fall into the fan-shaped supporting frame 302 above the fan-shaped plate 301. Because there are multiple groups of guide plates 304 fixed in an up-and-down staggered state inside the fan-shaped supporting frame 302, and each group of guide plates 304 is arranged in a downwardly inclined state, the polypropylene powder that falls into the fan-shaped supporting frame 302 is guided by each group of guide plates 304 and flows into various chambers inside the fan-shaped supporting frame 302 in turn. The polypropylene powder is transported to the fan-shaped supporting frame 302 above the fan-shaped plate 301. After the feeding inside the frame 302 is completed, the heated nitrogen is transported to the inside of the purification chamber 101 through the delivery pipe 102. The transported heated nitrogen is transported to the inside of the fan-shaped carrier frame 302 through each group of perforations 303. After entering the fan-shaped carrier frame 302, the heated nitrogen passes through each group of cavities formed by the groups of guide plates 304 and purifies the polypropylene powder inside the cavity. During the purification process, the flow path of the heated nitrogen inside the fan-shaped carrier frame 302 is increased by the multiple groups of staggered cavities, which makes it easier for the heated nitrogen to fully contact the polypropylene powder inside different cavities, thereby improving the utilization rate of the heated nitrogen.

[0061] The heated nitrogen is brought into contact with the polypropylene powder to promote the removal of impurities in the polypropylene powder. After purification for a period of time, the supporting component is driven to rotate by the rotating component. In the process of driving the supporting component to rotate, the rotating shaft 401 is driven to rotate by the driving motor 403. In the process of rotating the rotating shaft 401, the fan-shaped plate 301 and the fan-shaped supporting frame 302 are driven to rotate synchronously through the connection effect of the support frame 501, the torsion shaft 502 and the connecting block 503 on the connecting component. In the process of rotation, the transmission pin 602 is driven to move synchronously through the connection effect of the connecting block 503 and the L-shaped linkage plate 601. In the process of movement of the transmission pin 602, the inclined surfaces 606 of the pushing blocks 605 staggered on the two sets of fixed rings 603 at both ends of the transmission pin 602 are successively abutted. In the process of the end of the transmission pin 602 abutting against the inclined surface 606, the transmission pin 602, the L-shaped linkage plate 601, the connecting block 503 and the torsion shaft 403 are pushed. The rotating shaft 502 moves, and when the transmission pin 602 does not abut against the inclined surface 606, the resetting effect of the torsion rotating shaft 502 causes the connecting block 503, the L-shaped linkage plate 601 and the transmission pin 602 to reset. Because in the process of the rotation of the rotating shaft 401, the connecting block 503 is driven to swing back and forth with the torsion rotating shaft 502 as the center through transmission. In the process of the movement of the connecting block 503, the sector plate 301 and the sector supporting frame 302 are driven to swing up and down synchronously. In the process of the sector supporting frame 302 swinging up and down, the polypropylene powder inside the sector supporting frame 302 is driven to move back and forth inside the chamber along the horizontal direction of the sector supporting frame 302. The movement of the polypropylene powder changes the relative positions between the powder particles, breaks the original electrostatic balance, and redistributes the charges between the charged particles, thereby weakening or eliminating the electrostatic adsorption force, so that the polypropylene powder is fully dispersed during the purification process, thereby improving the purification efficiency.

[0062] By cooperating with the rotating assembly and the swinging assembly, the bearing assembly rotates and swings downward (see Figure 13 ), as the fan-shaped plate 301 swings downward, the transmission plate 802 is forced to move upward through the traction and pulling action of the traction rope 1003. During the upward movement of the transmission plate 802, the arc-shaped baffle 702 is driven to move upward synchronously through the connecting plate 803. After the arc-shaped baffle 702 moves upward, the groups of discharge holes 703 on the arc-shaped baffle 702 are connected with the groups of chambers of the fan-shaped supporting frame 302. At this time, the fan-shaped supporting frame 302 is in a downward tilted state, so that part of the polypropylene powder after purification in the groups of chambers inside the fan-shaped supporting frame 302 is discharged outward through the discharge holes 703, and the discharged polypropylene powder falls to the bottom of the purification bin 101 through the groups of perforations 303, which is convenient for the discharge operation of the purified polypropylene powder.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A polypropylene powder purification device comprising: A purification chamber (101), one side of the purification chamber (101) is connected to a delivery pipe (102) for delivering heated nitrogen and a feed pipe (105) for feeding polypropylene powder, an upper end of the purification chamber (101) is provided with an exhaust pipe (104) for discharging excess gas after purification, and a lower end of the purification chamber (101) is provided with a discharge pipe (103) for discharging the purified material; It is characterized by further comprising: An annular plate (2) is fixed inside the purification chamber (101), the annular plate (2) being located between the conveying pipe (102) and the feeding pipe (105), the inner side of the annular plate (2) being provided with a plurality of groups of bearing components for bearing the conveyed polypropylene powder, and the plurality of groups of bearing components being arranged in a state of an annular array, the interior of the purification chamber (101) being provided with a rotating component for assisting the rotation of each group of bearing components, and the interior of the purification chamber (101) being provided with a swinging component for causing the bearing components to swing back and forth up and down during the rotation of each group of bearing components; The supporting assembly comprises a fan-shaped plate (301), a fan-shaped supporting frame (302) is fixed above the fan-shaped plate (301), a plurality of groups of through-holes (303) for auxiliary heating nitrogen to pass through are provided on the fan-shaped plate (301), the through-holes (303) are communicated with the interior of the fan-shaped supporting frame (302), a plurality of groups of guide plates (304) are fixed in an up-down staggered state inside the fan-shaped supporting frame (302), each group of the guide plates (304) is arranged in a downwardly inclined state, and a plurality of groups of up-down staggered chambers are formed inside the fan-shaped supporting frame (302) under the dividing action of the plurality of groups of guide plates (304), and a discharge assembly for auxiliary discharge of materials after purification treatment is provided on the fan-shaped supporting frame (302); The rotating assembly comprises a fixing frame (402) fixed inside the purification chamber (101), a rotating shaft (401) is rotatably connected to the fixing frame (402), the rotating shaft (401) is located on the inner side of each group of sector plates (301), and a connecting assembly for assisting the connection of the sector plates (301) is provided between the sector plates (301) and the outer side of the rotating shaft (401), and a driving motor (403) for driving the rotating shaft (401) is installed at the bottom of the fixing frame (402); The connecting assembly comprises a support frame (501) fixed to the outside of the rotating shaft (401), a rotatable and resetting torsion shaft (502) being rotatably connected to the support frame (501), a connecting block (503) being fixed to the outside of the torsion shaft (502), and one end of the connecting block (503) being connected and fixed to the inside of the sector plate (301); The swing assembly comprises an L-shaped linkage plate (601) fixed to the lower end of the connecting block (503), a transmission pin (602) being fixed on the L-shaped linkage plate (601), two sets of fixing rings (603) being sleeved on the outer side of the rotating shaft (401), the two sets of fixing rings (603) and the support frame (501) being connected and fixed via a connecting frame (604), the transmission pin (602) being located between the two sets of fixing rings (603), a plurality of pushing blocks (605) arranged in a circular array state being fixed on the fixing rings (603), and the pushing blocks (605) on the two sets of fixing rings (603) being arranged in a staggered state, and an inclined surface (606) for abutting against the end of the transmission pin (602) for transmission is provided on the pushing blocks (605).

2. A polypropylene powder purification device according to claim 1, characterized in that: The discharge assembly includes a plurality of groups of discharge troughs (701) provided on the outside of the fan-shaped supporting frame (302), each group of the discharge troughs (701) being communicated with each group of chambers inside the fan-shaped supporting frame (302), the outside of the fan-shaped supporting frame (302) being connected to an arc-shaped baffle (702) for shielding the discharge trough (701) through a telescopic assembly, the arc-shaped baffle (702) being provided with a plurality of groups of discharge holes (703) for assisting in discharge, and the support frame (501) being provided with a traction and pulling assembly for pulling the arc-shaped baffle (702).

3. A polypropylene powder purification device according to claim 2, characterized in that: The telescopic assembly comprises a fixed plate (801) fixed to the outside of the fan-shaped bearing frame (302); a transmission plate (802) is provided below the fixed plate (801); the transmission plate (802) and the arc-shaped baffle (702) are connected and fixed via a connecting plate (803); and a reset assembly for resetting the transmission plate (802) after being pulled is provided between the fixed plate (801) and the transmission plate (802).

4. A polypropylene powder purification device according to claim 3, characterized in that: The traction and pulling assembly comprises an L-shaped frame (1001) fixed between a connecting block (503) and an upper end of a fan-shaped bearing frame (302); a traction rope (1003) is slidably connected to the L-shaped frame (1001) through a mounting hole (1002); one end of the traction rope (1003) passes through a fixed plate (801) and is fixed to a transmission plate (802); the other end of the traction rope (1003) is fixed with a mounting seat (1004); the mounting seat (1004) is fixed to a support frame (501); and a first support assembly and a second support assembly for supporting the traction rope (1003) during transmission are respectively provided on the mounting seat (1004) and the fixed plate (801).

5. A polypropylene powder purification device according to claim 4, characterized in that: The reset assembly comprises a plurality of groups of T-shaped rods (901) slidably connected to a fixed plate (801), one end of each group of the T-shaped rods (901) being fixed to a transmission plate (802), a spring (902) being sleeved on the outer side of each group of the T-shaped rods (901), and two ends of the spring (902) being respectively connected to the fixed plate (801) and the transmission plate (802).

6. A polypropylene powder purification device according to claim 5, characterized in that: The first supporting assembly comprises a first operating frame (1101) fixed on a mounting seat (1004), and a first supporting wheel (1102) for supporting a transmission traction rope (1003) is rotatably connected to the first operating frame (1101).

7. A polypropylene powder purification device according to claim 6, characterized in that: The second supporting assembly comprises a second operating frame (1201) fixed to the upper end of the fixed plate (801), and a second supporting wheel (1202) for supporting a transmission traction rope (1003) is rotatably connected to the second operating frame (1201).

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