阅读说明：本技术 一种高抗冲性聚丙烯树脂合成系统 (High impact resistance polypropylene resin synthesis system ) 是由 黄君豪 刘健 于 2021-07-14 设计创作，主要内容包括：本发明属于树脂加工技术领域,具体的说是一种高抗冲性聚丙烯树脂合成系统,包括过滤桶、电机、出料管和传动轴；所述过滤桶外表面靠近底部位置固连有出料管,且出料管与过滤桶连通；所述过滤桶底部中心位置固连有电机,且电机的输出端固连有传动轴；当拨杆运动至弹性板中间位置时,拨杆挤压弹性板反向弯曲程度达到最大,从而使得弹性板受拨杆挤压影响运动呈反向弯曲状,使得弹性板中间部分拍打滤袋,滤袋受到弹性板拍打后产生震动,滤袋震动带动滤袋表面的杂质运动,配合刮管刮擦滤袋表面,将滤袋表面的杂质刮除,增加滤袋表面的清洁程度,从而增加滤袋对聚丙烯树脂溶液的过滤效率。(The invention belongs to the technical field of resin processing, and particularly relates to a high impact resistance polypropylene resin synthesis system which comprises a filter barrel, a motor, a discharge pipe and a transmission shaft; a discharge pipe is fixedly connected to the outer surface of the filter barrel, which is close to the bottom of the filter barrel, and is communicated with the filter barrel; the center of the bottom of the filter barrel is fixedly connected with a motor, and the output end of the motor is fixedly connected with a transmission shaft; when the driving lever moved to the elastic plate intermediate position, driving lever extrusion elastic plate reverse bending degree reached the biggest, thereby make the elastic plate receive driving lever extrusion influence motion to be reverse bending form, make the elastic plate mid portion pat the filter bag, the filter bag receives the elastic plate bat to beat the back and produces vibrations, the filter bag vibrations drive the impurity motion on filter bag surface, the pipe scraping filter bag surface is scraped in the cooperation, strike off the impurity on filter bag surface, increase the clean degree on filter bag surface, thereby increase the filter efficiency of filter bag to polypropylene resin solution.)

1. A high impact resistance polypropylene resin synthesis system comprises a preparation unit, a detection unit and a filtration unit, wherein the preparation unit processes a bottom material solvent into polypropylene resin through a reaction kettle, the detection unit detects viscosity and acid value of the polypropylene resin through a reagent, and the filtration unit filters the polypropylene resin through a bag filter; the method is characterized in that: the filter unit comprises a bag filter, and the bag filter comprises a filter barrel (1), a motor (11), a discharge pipe (12) and a transmission shaft (2); a discharge pipe (12) is fixedly connected to the outer surface of the filter barrel (1) close to the bottom, and the discharge pipe (12) is communicated with the filter barrel (1); the center of the bottom of the filter barrel (1) is fixedly connected with a motor (11), and the output end of the motor (11) is fixedly connected with a transmission shaft (2); a group of convex blocks (13) are fixedly connected to the inner wall of the filter barrel (1) at the position close to the top uniformly and circumferentially, a circular ring (14) is connected in the filter barrel (1) in a sliding manner, and the outer ring of the circular ring (14) is attached to the convex blocks (13); the bottom of the circular ring (14) is uniformly and circumferentially fixedly connected with supporting rods (15), one end, far away from the circular ring (14), of each supporting rod (15) is fixedly connected with a ring (16), and each ring (16) is located on an axis position below the circular ring (14); a filter bag (17) is fixedly connected between the circular ring (14) and the annular ring (16), the transmission shaft (2) penetrates through the bottom of the filter bag (17) and is positioned at the center of the circular ring (14), a group of support rods (21) are uniformly and circumferentially fixedly connected in the filter bag (17) of the transmission shaft (2), and one ends of the support rods (21) far away from the transmission shaft (2) are fixedly connected with scraping pipes (22); an elastic plate (3) is fixedly connected between the adjacent support rods (15), the elastic plate (3) is obliquely arranged, and the bending radius of the elastic plate (3) is larger than that of the support rods (15); the transmission shaft (2) is fixedly connected with a shifting lever (25) below the ring (16), the shifting lever (25) and the scraping pipe (22) are arranged in a staggered mode, and the shifting lever (25) inclines towards the direction of the ring (14); when the device works, the deflector rod (25) moves to contact the elastic plate (3).

2. The high impact polypropylene resin synthesis system according to claim 1, wherein: the section of the scraping pipe (22) consists of an arc a and an arc b, one end of the arc a, which is far away from the arc b, is bent towards the arc b, and one end of the arc b, which is far away from the arc a, is in contact with the surface of the filter bag (17).

3. The high impact polypropylene resin synthesis system according to claim 2, wherein: one end, far away from the arc a, of the arc b in the scraping pipe (22) is hinged with a scraping plate (23), the scraping plate (23) moves towards the scraping pipe (22), and the scraping plate (23) is connected with the scraping pipe (22) through a torsion spring.

4. The high impact polypropylene resin synthesis system according to claim 3, wherein: the surface of one side of the scraper plate (23) far away from the scraper tube (22) is uniformly sleeved with a group of balls (24).

5. The high impact polypropylene resin synthesis system according to claim 4, wherein: the two ends of the elastic plate (3) close to the supporting rod (15) are all arc-shaped, and the two ends of the elastic plate (3) close to the supporting rod (15) are bent towards the elastic plate (3).

6. The high impact polypropylene resin synthesis system according to claim 5, wherein: the elastic plate (3) is located at the middle position and fixedly connected with a supporting strip (31), and the length of the supporting strip (31) is smaller than that of the elastic plate (3).

Technical Field

The invention belongs to the technical field of resin processing, and particularly relates to a high impact resistance polypropylene resin synthesis system.

Background

The resin generally refers to an organic polymer which has a softening or melting range after being heated, tends to flow by an external force when softened, and is solid, semi-solid, or liquid at room temperature. The resins can be classified into natural resins and synthetic resins according to the source; the thermoplastic resin and the thermosetting resin are classified according to their different processing behaviors. The thermoplastic resin includes polypropylene, polycarbonate, nylon, polyether ether ketone, polyether sulfone and the like. Wherein the preparation of the polypropylene resin solution generally requires preparation, inspection and filtration, wherein the filtration of the polypropylene resin is generally performed in bulk using a bag filter.

The prior art also discloses a technical scheme of a high impact resistance polypropylene resin synthesis system, for example, a chinese patent with application number CN2017214384078 discloses a bag filter produced by resin for coating, which comprises a filter tank, an electromagnetic valve, a discharge pipe, a support frame, a control panel, an electric push rod, a vibration motor, a support spring, a ferrule, a fixed seat, a clamping ring, a fastening bolt, a filter bag, a connecting rod, a rotary disk, a rapping rod, a driven gear, a rotary motor and a driving gear, wherein the support frame is fixed around the bottom of the filter tank by welding, the discharge pipe is installed at the center of the bottom of the filter tank, the electromagnetic valve is installed on the discharge pipe, the control panel is embedded in one side of the filter tank, the electric push rods are fixed on the corresponding two sides of the inner wall of the bottom of the filter tank by bolts, and the vibration motor is installed at the top of the electric push rods, a supporting spring is installed at the top of the vibration motor, and a fixed seat is installed at the top of the supporting spring; however, the technical scheme has the defects that the rotary motor works to drive the driving gear to rotate and then drive the driven gear to rotate, so that the rotary disk is driven to rotate, the vibrating rod vibrates the filter bag, when the vibrating rod vibrates the filter bag in a rotating manner, the vibrating rod vibrates the bottom of the filter bag to vibrate impurities on the surface of the filter bag, when a large amount of resin solution is filtered, a large amount of resin solution is stored in the filter bag, the resin solution continuously flows through the filter bag in a filtering manner, the resin solution forms pressure on the surface of the filter bag to extrude the impurities on the filter bag to cling to the filter bag, and the impurities on the filter bag shake and fall off and are influenced by the flow of the resin solution in the process of beating the filter bag, so that the rolling speed of the impurities on the filter bag is reduced, and the filtering efficiency of the filter bag is reduced; when the filter bag is beaten by the rapping bar, impurities fall to the bottom of the filter bag, and a large amount of impurities are accumulated at the bottom of the filter bag under the condition of long-time filtration, so that the bottom of the filter bag is blocked by the impurities, and the filtration efficiency of the filter bag is reduced.

In view of the above, the present invention provides a high impact resistance polypropylene resin synthesis system, which solves the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that when a resin solution is filtered, the dropping speed of impurities in a filter bag is reduced due to the influence of the flow of the resin solution, so that the cleaning efficiency of the filter bag is reduced and the filtering efficiency of the filter bag is influenced, the invention provides a high impact resistance polypropylene resin synthesis system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the high impact resistance polypropylene resin synthesis system comprises a preparation unit, an inspection unit and a filtering unit, wherein a bottom material solvent is processed into polypropylene resin by the preparation unit through a reaction kettle, the inspection unit inspects the viscosity and the acid value of the polypropylene resin through a reagent, and the filtering unit filters the polypropylene resin through a bag filter; the filter unit comprises a bag filter, and the bag filter comprises a filter cartridge, a motor, a discharge pipe and a transmission shaft; a discharge pipe is fixedly connected to the position, close to the bottom, of the outer surface of the filter cylinder and is communicated with the filter cylinder; the center of the bottom of the filter cylinder is fixedly connected with a motor, and the output end of the motor is fixedly connected with a transmission shaft; a group of convex blocks are fixedly connected to the inner wall of the filter cartridge at the position close to the top uniformly and circumferentially, a circular ring is connected in the filter cartridge in a sliding manner, and the outer ring of the circular ring is attached to the convex blocks; the bottom of the circular ring is fixedly connected with a supporting rod on the uniform circumference, one end of the supporting rod, far away from the circular ring, is fixedly connected with a ring, and the ring is positioned on the axial line below the circular ring; a filter bag is fixedly connected between the circular ring and the annular ring, a transmission shaft penetrates through the bottom of the filter bag and is positioned at the center of the circular ring, a group of support rods are uniformly and circumferentially fixedly connected in the filter bag through the transmission shaft, and one ends of the support rods, far away from the transmission shaft, are fixedly connected with scraping pipes; an elastic plate is fixedly connected between the adjacent support rods and is obliquely arranged, and the bending radius of the elastic plate is larger than that of the support rods; the driving shaft is fixedly connected with a driving lever below the ring, the driving lever and the scraping pipe are arranged in a staggered mode, and the driving lever inclines towards the direction of the circular ring; when the lifting rod works, the lifting rod moves to contact the elastic plate.

When the polypropylene resin solution is used, the polypropylene resin solution after stirring reaction is poured from a feeding hole in a filter cylinder, a bag type filter is opened, a motor drives a transmission shaft to move, the motor in the invention is a conventional speed reducing motor, the transmission shaft drives a support rod to move, the support rod drives a scraping pipe to move, the scraping pipe in the invention is formed by bending a filter screen, the polypropylene resin solution is poured into the filter cylinder and then filters impurities formed in the production and processing of the polypropylene resin solution through the filter bag, the polypropylene resin solution penetrates through the filter bag, the filter bag blocks the impurities in the polypropylene resin solution on the surface of the filter bag, the scraping pipe moves to scrape the impurities blocked on the surface by the filter bag, the cleaning degree of the surface of the filter bag is increased, so that the filtering efficiency of the filter bag on the polypropylene resin solution is increased, and the impurities of the polypropylene resin solution are prevented from being accumulated on the surface of the filter bag after long-time work, thereby blocking the filter bag and reducing the filtering efficiency of the filter bag to the polypropylene resin solution; the driving shaft drives the shifting rod to move, and the shifting rod contacts the elastic plate in the moving process due to the fact that the elastic plate is arranged and is in an arc-shaped initial state, and the bending radius of the elastic plate is larger than that of the supporting rod; when the deflector rod moves to a position where the elastic plate is close to the middle, one side, close to the filter bag, of the deflector rod is in contact with the surface of the elastic plate, and the deflector rod is in an arc shape and gradually approaches to the middle part of the elastic plate along with the movement of the deflector rod, and the deflector rod extrudes the middle part of the elastic plate to enable the elastic plate to be gradually reversely bent; when the shifting rod moves to the middle position of the elastic plate, the shifting rod extrudes the elastic plate to achieve the maximum reverse bending degree, so that the elastic plate is extruded by the shifting rod to influence the movement to be in a reverse bending shape, the bending degree of the middle part of the elastic plate is larger than the bending degrees of the two ends of the elastic plate after the elastic plate is deformed, the middle part of the elastic plate is used for beating the filter bag, the filter bag is vibrated after being beaten by the elastic plate, the filter bag vibrates to drive impurities on the surface of the filter bag to move, the scraper tube is matched with the scraper tube to scrape the surface of the filter bag, the impurities on the surface of the filter bag are scraped, the cleaning degree of the surface of the filter bag is further increased, and the filtering efficiency of the filter bag on the polypropylene resin solution is increased; when the scraping pipe moves to the elastic plate in the reverse bending state, the scraping pipe firstly contacts the elastic plate and is close to the middle part to extrude the elastic plate, and when the scraping pipe moves to the middle position of the elastic plate, the elastic plate is subjected to bending deformation under the influence of extrusion of the scraping pipe, so that the elastic plate is reset to the initial state, and the elastic plate forms a working cycle; the polypropylene resin falls to the bottom of the filter cylinder after being filtered, the polypropylene resin is discharged from a discharge pipe at the bottom of the filter cylinder, and workers collect the filtered polypropylene resin; when changing the filter bag, branch and transmission shaft are detachable installation, demolish branch from the transmission shaft and wash and scrape the pipe, and the staff mentions the ring, and the ring upwards slides along the lug, and the ring drives the bracing piece motion, and the bracing piece drives the ring motion to take out the filter bag and change.

Preferably, the section of the scraping pipe consists of an arc a and an arc b, one end of the arc a, which is far away from the arc b, is bent towards the arc b, and one end of the arc b, which is far away from the arc a, is in contact with the surface of the filter bag.

When the device is used, the transmission shaft drives the supporting rod to move, the supporting rod drives the scraping pipe to move, one end, far away from the arc a, of the arc b in the scraping pipe scrapes the surface of the filter bag, a polypropylene solution penetrates through the scraping pipe, the scraping pipe drives impurities on the surface of the filter bag to move, the impurities are influenced by the guiding effect of the inner surface of the arc b in the scraping pipe and move into the arc a part in the scraping pipe along the inner surface of the arc b part in the scraping pipe, and therefore the scraping pipe collects the impurities on the surface of the filter bag, the cleaning degree of the surface of the filter bag is further increased, the scraping pipe is prevented from pushing the impurities to move on the surface of the filter bag, and the polypropylene solution is prevented from forming secondary pollution; because arc a keeps away from the one end bending of arc b towards arc b in scraping the pipe, make in scraping the pipe arc a part approach and cyclic annular, impurity when scraping in the pipe arc b part and go up the motion, impurity receives the guide effect influence of arc a in scraping the pipe, impurity moves along scraping in the pipe arc a part towards arc b part in scraping the pipe, make impurity form the circular orbit motion in arc a in scraping the pipe, increase the clean degree on filter bag surface, prevent to scrape the impurity outflow of collecting in the pipe, drop on the filter bag surface, lead to the filter bag surface to receive secondary pollution, reduce the clean degree on filter bag surface.

Preferably, the one end that circular arc b kept away from circular arc a in the scraping pipe articulates there is the scraper blade, and the scraper blade moves towards the scraping pipe direction, and the scraper blade passes through torsional spring with the scraping pipe and is connected.

When the flapping-prevention elastic plate is used, after the elastic plate is extruded by the deflector rod to deform, the elastic plate bends towards the direction close to the filter bag until the middle position of the elastic plate contacts the surface of the filter bag to form flapping; the transmission shaft drives the support rod to move, the support rod drives the scraper tube to move, when the scraper tube moves to the position of the elastic plate, the scraper blade is arranged and is made of a flexible graphite packing material, the flexible graphite packing has the characteristics of friction resistance and self-lubrication, the scraper tube drives the scraper blade to move, one end of the scraper blade far away from the scraper tube is in contact with the elastic plate through the filter bag, the part of the scraper blade in contact with the elastic plate extrudes the elastic plate, meanwhile, the scraper blade is subjected to the reaction force of the elastic plate, the part of the scraper blade in contact with the elastic plate moves around one end of the scraper blade in contact with the arc b far away from the arc a and the hinged part of the scraper blade, the arc surface in the scraper blade is in contact with the elastic plate through the filter bag, so that the contact area between the scraper blade and the filter bag is increased, the protection of the scraper blade on the filter bag is increased, when the scraper blade is prevented from being in contact with the elastic plate, the edge in contact with the surface of the filter bag is contacted with the surface, after long-time work, the abrasion degree of the surface of the filter bag is increased, thereby reducing the service life of the filter bag; after the scraper blade moves past the elastic plate position, the torsional spring drives the scraper blade to reset, so that the scraper blade continuously scrapes the surface of the filter bag.

Preferably, the surface of one side of the scraper far away from the scraping pipe is uniformly sleeved with a group of balls.

When the scraper is used, the scraper tube drives the scraper to move, when the scraper moves to the position of the elastic plate, one end of the scraper far away from the scraper tube contacts the elastic plate, the scraper is subjected to the reaction force of the elastic plate when extruding the bent part of the elastic plate, the part of the scraper contacting the elastic plate moves around one end of the arc b in the scraper tube far away from the arc a and the hinged part of the scraper, so that the arc surface in the scraper contacts the elastic plate, due to the arrangement of the balls, the arc surface in the scraper contacts the surface of the filter bag through the balls, the scraper contacts the bent part of the elastic plate, therefore, when the scraper extrudes the elastic plate, the contact mode of the scraper and the surface of the filter bag is changed from sliding friction to rolling friction through the balls, the friction force of the scraper to the surface of the filter bag when extruding the bent part of the elastic plate is reduced, the protection of the scraper to the filter bag is further increased, and the arc surface in the scraper is prevented from contacting the surface of the filter bag when the scraper extrudes the elastic plate, after long-time work, the abrasion degree of the surface of the filter bag is increased, so that the service life of the filter bag is shortened.

Preferably, the two ends of the elastic plate close to the supporting rod are both arc-shaped, and the two ends of the elastic plate close to the supporting rod are bent towards the elastic plate.

When the elastic plate is used, the transmission shaft moves to drive the shifting rod to move, the shifting rod contacts the elastic plate in the moving process, and the two ends of the elastic plate, which are close to the supporting rod, are both arranged in an arc shape, so that the contact area between edges in the elastic plate and the surface of the shifting rod is reduced when the shifting rod contacts the elastic plate, the elastic plate is protected, the service life of the elastic plate is prolonged, and the elastic plate is prevented from contacting the shifting rod through the edges, so that the abrasion degree of the elastic plate is increased; through setting up the equal arc in both ends that the elastic plate is close to the bracing piece, when the scraper blade passes through filter bag contact elastic plate, arc part in the scraper blade contact elastic plate extrudees the elastic plate to the protection scraper blade is surperficial with the filter bag of elastic plate contact part, increase the life of filter bag, prevent the edge contact filter bag in the elastic plate, the scraper blade scrapes along the elastic plate edge and moves the extrusion, lead to increasing the degree of wear of elastic plate and scraper blade to the filter bag, and then reduce the life of filter bag.

Preferably, the elastic plate is fixedly connected with a support bar at the middle position, and the length of the support bar is smaller than that of the elastic plate.

When the transmission device is used, the transmission shaft moves to drive the shifting rod to move, the shifting rod contacts with the bent part of the elastic plate when the shifting rod moves to the position of the elastic plate, the shifting rod extrudes the bent part of the elastic plate, the elastic plate is extruded by the shifting rod to generate elastic deformation, the shifting rod extrudes the bent part of the elastic plate when the shifting rod moves to the middle position of the elastic plate, the elastic plate is bent towards the direction close to the filter bag under the influence of the deformation, and the bending degree of the middle part of the elastic plate is greater than that of the two end parts of the elastic plate, so that the middle part of the elastic plate can flap the filter bag; because the support bar is arranged, the length of the support bar is less than one fifth of that of the elastic plate, when the elastic plate is bent, the support bar supports the middle part of the elastic plate, the middle part of the elastic plate is bent to form an arc under the influence of deformation, the bent deformation radian of the elastic plate is reduced, the service life of the elastic plate is prolonged, the elastic plate is prevented from being bent, the middle part of the elastic plate is excessively bent or the elastic plate forms a folded plate shape, the extrusion force of the elastic plate when being extruded by the scraper plate or the deflector rod is increased, and the abrasion degree of the filter bag and the elastic plate is increased.

The invention has the following beneficial effects:

1. according to the high impact resistance polypropylene resin synthesis system, the elastic plate is arranged, when the shifting rod moves to the middle position of the elastic plate, the elastic plate is extruded by the shifting rod to move in a reverse bending shape, so that the middle part of the elastic plate beats the filter bag, the filter bag vibrates after being beaten by the elastic plate, the filter bag vibrates to drive impurities on the surface of the filter bag to move, the scraping pipe is matched to scrape the surface of the filter bag, the impurities on the surface of the filter bag are scraped, the cleaning degree of the surface of the filter bag is further increased, and the filtering efficiency of the filter bag on polypropylene resin solution is increased.

2. According to the high impact resistance polypropylene resin synthesis system, the scraping pipe is arranged, the transmission shaft drives the support rod to move, the support rod drives the scraping pipe to move, one end, far away from the circular arc a, of the circular arc b in the scraping pipe scrapes the surface of the filter bag, a polypropylene solution penetrates through the scraping pipe, the scraping pipe drives impurities on the surface of the filter bag to move, the impurities are influenced by the guiding effect of the inner surface of the circular arc b in the scraping pipe and move into the circular arc a part in the scraping pipe along the inner surface of the circular arc b part in the scraping pipe, and therefore the scraping pipe collects the impurities on the surface of the filter bag, and the cleaning degree of the surface of the filter bag is increased.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a perspective view of the scraper tube of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is a partial enlarged view at B in FIG. 4;

FIG. 7 is an enlarged view of a portion of FIG. 3 at C;

in the figure: the filter cartridge 1, the motor 11, the discharge pipe 12, the bump 13, the ring 14, the support rod 15, the ring 16, the filter bag 17, the transmission shaft 2, the support rod 21, the scraping pipe 22, the scraping plate 23, the ball 24, the shift lever 25, the elastic plate 3 and the support strip 31.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the high impact polypropylene resin synthesis system according to the present invention comprises a preparation unit, a checking unit and a filtering unit, wherein the preparation unit processes a primer solvent into polypropylene resin through a reaction kettle, the checking unit checks viscosity and acid value of the polypropylene resin through a reagent, and the filtering unit filters the polypropylene resin through a bag filter; the filter unit comprises a bag filter, and the bag filter comprises a filter cartridge 1, a motor 11, a discharge pipe 12 and a transmission shaft 2; a discharge pipe 12 is fixedly connected to the outer surface of the filter cartridge 1 near the bottom, and the discharge pipe 12 is communicated with the filter cartridge 1; the center of the bottom of the filter cartridge 1 is fixedly connected with a motor 11, and the output end of the motor 11 is fixedly connected with a transmission shaft 2; a group of convex blocks 13 are uniformly and circumferentially fixedly connected to the inner wall of the filter cartridge 1 close to the top, a circular ring 14 is slidably connected in the filter cartridge 1, and the outer ring of the circular ring 14 is attached to the convex blocks 13; the bottom of the circular ring 14 is uniformly and circumferentially fixedly connected with a support rod 15, one end of the support rod 15, far away from the circular ring 14, is fixedly connected with a ring 16, and the ring 16 is positioned on the axis below the circular ring 14; a filter bag 17 is fixedly connected between the circular ring 14 and the annular ring 16, the transmission shaft 2 penetrates through the bottom of the filter bag 17 and is positioned at the center of the circular ring 14, a group of support rods 21 are uniformly and circumferentially fixedly connected in the filter bag 17 of the transmission shaft 2, and one ends of the support rods 21 far away from the transmission shaft 2 are fixedly connected with scraping pipes 22; an elastic plate 3 is fixedly connected between the adjacent support rods 15, the elastic plate 3 is arranged obliquely, and the bending radius of the elastic plate 3 is larger than that of the support rods 15; the driving rod 25 is fixedly connected to the lower portion of the transmission shaft 2 below the ring 16, the driving rod 25 and the scraping pipe 22 are arranged in a staggered mode, and the driving rod 25 inclines towards the direction of the circular ring 14; in operation, the lever 25 moves into contact with the flexible plate 3.

When the polypropylene resin solution is produced, the polypropylene resin solution after stirring reaction is poured from a feeding hole in a filter cylinder 1, a bag type filter is opened, a motor 11 drives a transmission shaft 2 to move, the motor 11 in the invention is a conventional speed reduction motor 11, the transmission shaft 2 drives a support rod 21 to move, the support rod 21 drives a scraping pipe 22 to move, the scraping pipe 22 in the invention is formed by bending a filter screen, the polypropylene resin solution is poured into the filter cylinder 1 and then is filtered by a filter bag 17 to remove impurities formed in the production and processing of the polypropylene resin solution, the polypropylene resin solution penetrates through the filter bag 17, the filter bag 17 separates the impurities in the polypropylene resin solution on the surface of the filter bag 17, the scraping pipe 22 moves to scrape the impurities separated on the surface by the filter bag 17, the cleaning degree of the surface of the filter bag 17 is increased, so that the filtering efficiency of the filter bag 17 on the polypropylene resin solution is increased, and the polypropylene resin solution is prevented from working for a long time, impurities in the polypropylene resin solution are accumulated on the surface of the filter bag 17, so that the filter bag 17 is blocked, and the filtering efficiency of the filter bag 17 on the polypropylene resin solution is reduced; the driving shaft 2 drives the driving lever 25 to move, and the driving lever 25 contacts the elastic plate 3 in the moving process because the elastic plate 3 is arranged and the initial state of the elastic plate 3 is arc-shaped, and the bending radius of the elastic plate 3 is larger than that of the supporting rod 15; when the deflector rod 25 moves to a position where the elastic plate 3 is close to the middle, one side of the deflector rod 25 close to the filter bag 17 contacts the surface of the elastic plate 3, and as the elastic plate 3 is arc-shaped, the deflector rod 25 gradually approaches to the middle part of the elastic plate 3 along with the movement of the deflector rod 25, the deflector rod 25 extrudes the middle part of the elastic plate 3, so that the elastic plate 3 is gradually and reversely bent; when the shifting rod 25 moves to the middle position of the elastic plate 3, the shifting rod 25 extrudes the elastic plate 3 to achieve the maximum reverse bending degree, so that the elastic plate 3 is extruded by the shifting rod 25 to influence the movement to be in a reverse bending shape, the bending degree of the middle part of the elastic plate 3 is greater than the bending degrees of the two ends of the elastic plate 3 after the elastic plate 3 deforms, so that the middle part of the elastic plate 3 beats the filter bag 17, the filter bag 17 shakes to drive impurities on the surface of the filter bag 17 to move after being beaten by the elastic plate 3, the filter bag 17 shakes to drive the impurities on the surface of the filter bag 17 to scrape the surface of the filter bag 17 in cooperation with the scraping pipe 22, the impurities on the surface of the filter bag 17 are scraped, the cleaning degree of the surface of the filter bag 17 is further increased, and the filtering efficiency of the filter bag 17 on the polypropylene resin solution is increased; when the scraping pipe 22 moves to the elastic plate 3 in the reverse bending state, the scraping pipe 22 firstly contacts the elastic plate 3 and is close to the middle part to extrude the elastic plate 3, and when the scraping pipe 22 moves to the middle position of the elastic plate 3, the elastic plate 3 is extruded by the scraping pipe 22 to be influenced to be bent and deformed, so that the elastic plate 3 is reset to the initial state, and the elastic plate 3 forms a working cycle; the polypropylene resin falls to the bottom of the filter cartridge 1 after being filtered, the polypropylene resin is discharged from a discharge pipe 12 at the bottom of the filter cartridge 1, and workers collect the filtered polypropylene resin; when changing filter bag 17, branch 21 and transmission shaft 2 are detachable installation, demolish branch 21 from transmission shaft 2 and wash and scrape pipe 22, and the staff lifts ring 14, and ring 14 upwards slides along lug 13, and ring 14 drives the motion of bracing piece 15, and bracing piece 15 drives the motion of ring 16 to take out filter bag 17 and change.

As an embodiment of the present invention, the section of the scraping pipe 22 is composed of a circular arc a and a circular arc b, and one end of the circular arc a away from the circular arc b is bent towards the circular arc b, and one end of the circular arc b away from the circular arc a contacts the surface of the filter bag 17.

When the device is used, the transmission shaft 2 drives the supporting rod 21 to move, the supporting rod 21 drives the scraping pipe 22 to move, one end, far away from the arc a, of the arc b in the scraping pipe 22 scrapes the surface of the filter bag 17, a polypropylene solution penetrates through the scraping pipe 22, the scraping pipe 22 drives impurities on the surface of the filter bag 17 to move, the impurities are influenced by the guiding effect of the inner surface of the arc b in the scraping pipe 22 and move to the arc a part in the scraping pipe 22 along the inner surface of the arc b part in the scraping pipe 22, so that the scraping pipe 22 collects the impurities on the surface of the filter bag 17, the cleaning degree of the surface of the filter bag 17 is increased, the scraping pipe 22 is prevented from pushing the impurities to move on the surface of the filter bag 17, and the polypropylene solution is prevented from forming secondary pollution; because the arc a in the scraping pipe 22 is away from the bending of one end of the arc b and faces the arc b, the arc a part in the scraping pipe 22 approaches to the ring shape, when impurities move on the arc b part in the scraping pipe 22, the impurities are influenced by the guiding effect of the arc a in the scraping pipe 22, the impurities move along the arc a part in the scraping pipe 22 and face the arc b part in the scraping pipe 22, the impurities form a circular track movement in the arc a in the scraping pipe 22, the cleaning degree of the surface of the filter bag 17 is increased, the impurities collected in the scraping pipe 22 are prevented from flowing out and falling on the surface of the filter bag 17, the surface of the filter bag 17 is subjected to secondary pollution, and the cleaning degree of the surface of the filter bag 17 is reduced.

In one embodiment of the present invention, a scraper 23 is hinged to one end of the scraping tube 22, which is away from the arc a, of the arc b, and the scraper 23 moves towards the scraping tube 22, and the scraper 23 and the scraping tube 22 are connected by a torsion spring.

When the flapping-prevention elastic plate is used, after the elastic plate 3 is extruded by the deflector rod 25 to deform, the elastic plate 3 bends towards the direction close to the filter bag 17 until the middle position of the elastic plate 3 contacts the surface of the filter bag 17 to flap; the transmission shaft 2 drives the support rod 21 to move, the support rod 21 drives the scraping pipe 22 to move, when the scraping pipe 22 moves to the position of the elastic plate 3, the scraping plate 23 is arranged, the scraping plate 23 is made of a flexible graphite packing material, the flexible graphite packing has friction resistance and self-lubricating characteristics, the scraping pipe 22 drives the scraping plate 23 to move, one end, far away from the scraping pipe 22, of the scraping plate 23 is in contact with the elastic plate 3 through the filter bag 17, part, in the scraping plate 23, in contact with the elastic plate 3 is in extrusion with the elastic plate 3, meanwhile, the scraping plate 23 is under the reaction force of the elastic plate 3, the part, in the scraping plate 23, in contact with the elastic plate 3 moves around one end, far away from the arc a, of the arc b in the scraping pipe 22 and the hinge of the scraping plate 23, the arc surface in the scraping plate 23 is in contact with the elastic plate 3 through the filter bag 17, the contact area between the scraping plate 23 and the filter bag 17 is increased, the protection performance of the scraping plate 23 on the filter bag 17 is increased, and when the scraping plate 23 is prevented from being in contact with the elastic plate 3, edges in the scraper 23 are in contact with the surface of the filter bag 17, and after long-time work, the abrasion degree of the surface of the filter bag 17 is increased, so that the service life of the filter bag 17 is shortened; after the scraper 23 moves past the position of the elastic plate 3, the torsion spring drives the scraper 23 to reset, so that the scraper 23 continuously scrapes the surface of the filter bag 17.

In one embodiment of the present invention, a set of balls 24 is uniformly sleeved on a surface of the scraper 23 away from the scraper tube 22.

When the scraper is used, the scraper 23 is driven by the scraper tube 22 to move, when the scraper 23 moves to the position of the elastic plate 3, one end of the scraper 23, which is far away from the scraper tube 22, contacts the elastic plate 3, when the scraper 23 presses the bent part of the elastic plate 3, the reaction force of the elastic plate 3 is received, the part of the scraper 23, which contacts the elastic plate 3, moves around the hinged part of the scraper 23 and one end, which is far away from the arc a, of the arc b in the scraper tube 22, so that the arc surface in the scraper 23 contacts the elastic plate 3, due to the arrangement of the balls 24, the arc surface in the scraper 23 contacts the surface of the filter bag 17 through the balls 24, so that the scraper 23 contacts the bent part of the elastic plate 3, when the scraper 23 presses the elastic plate 3, the contact mode of the scraper 23 and the surface of the filter bag 17 is changed from sliding friction through the balls 24 into rolling friction, when the scraper 23 presses the bent part of the elastic plate 3, the friction force of the scraper 23 on the surface of the filter bag 17 is reduced, and the protection of the scraper 23 on the filter bag 17 is further increased, when the scraper 23 is prevented from extruding the elastic plate 3, the arc-shaped surface in the scraper 23 is in contact with the surface of the filter bag 17, and after long-time work, the abrasion degree of the surface of the filter bag 17 is increased, so that the service life of the filter bag 17 is shortened.

As an embodiment of the present invention, both ends of the elastic plate 3 near the supporting rod 15 are arc-shaped, and both ends of the elastic plate 3 near the supporting rod 15 are bent toward the elastic plate 3.

When the elastic plate 3 is used, the transmission shaft 2 moves to drive the shift lever 25 to move, the shift lever 25 contacts the elastic plate 3 in the movement process, and the two ends of the elastic plate 3, which are close to the supporting rods 15, are both arranged in an arc shape, so that the contact area between edges in the elastic plate 3 and the surface of the shift lever 25 is reduced when the shift lever 25 contacts the elastic plate 3, the elastic plate 3 is protected, the service life of the elastic plate 3 is prolonged, and the elastic plate 3 is prevented from contacting the shift lever 25 through the edges, so that the abrasion degree of the elastic plate 3 is increased; through setting up the equal arc in both ends that the elastic plate 3 is close to bracing piece 15, when scraper 23 passes through filter bag 17 contact elastic plate 3, the arc part in the scraper 23 contact elastic plate 3 extrudees elastic plate 3, thereby protection scraper 23 and elastic plate 3 contact part's filter bag 17 surface, increase the life of filter bag 17, edge contact filter bag 17 in the elastic plate 3 prevents, scraper 23 scrapes along the 3 edges of elastic plate and moves the extrusion, lead to increasing the degree of wear of elastic plate 3 and scraper 23 to filter bag 17, and then reduce the life of filter bag 17.

In one embodiment of the present invention, the elastic plate 3 is fixedly connected with a supporting strip 31 at a middle position, and the length of the supporting strip 31 is smaller than that of the elastic plate 3.

When the flexible filter bag flapping-free transmission mechanism is used, the transmission shaft 2 moves to drive the shift lever 25 to move, when the shift lever 25 moves to the position of the elastic plate 3, the shift lever 25 contacts the bent part of the elastic plate 3, the shift lever 25 extrudes the bent part of the elastic plate 3, the elastic plate 3 is extruded by the shift lever 25 to generate elastic deformation, when the shift lever 25 moves to the middle position of the elastic plate 3, the shift lever 25 extrudes the bent part of the elastic plate 3, the elastic plate 3 is bent towards the direction close to the filter bag 17 under the influence of the deformation, the bending degree of the middle part of the elastic plate 3 is greater than that of the two end parts of the elastic plate 3, and the middle part of the elastic plate 3 flacks the filter bag 17; owing to be provided with support bar 31, and support bar 31 length is less than one fifth of elastic plate 3, when elastic plate 3 is crooked, support bar 31 supports the 3 middle parts of elastic plate, it is the arcuation to make 3 middle parts of elastic plate receive the bending of deformation influence, reduce the 3 crooked deformation radians of elastic plate, increase elastic plate 3 life, prevent that elastic plate 3 is when crooked deformation, the middle part of elastic plate 3 is excessively crooked or elastic plate 3 forms the folded plate form, lead to the extrusion force that elastic plate 3 received when receiving scraper blade 23 or driving lever 25 extrusion to increase, thereby increase filter bag 17 and elastic plate 3's degree of wear.

The specific working process is as follows:

when the polypropylene resin solution is produced, the polypropylene resin solution after the stirring reaction is poured from a feeding hole in a filter cylinder 1, a bag type filter is started, a motor 11 drives a transmission shaft 2 to move, the transmission shaft 2 drives a support rod 21 to move, the support rod 21 drives a scraping pipe 22 to move, the polypropylene resin solution is poured into the filter cylinder 1 and then impurities formed in the production and processing of the polypropylene resin solution are filtered through a filter bag 17, the polypropylene resin solution penetrates through the filter bag 17, the filter bag 17 blocks the impurities in the polypropylene resin solution on the surface of the filter bag 17, and the scraping pipe 22 moves to scrape the impurities blocked on the surface by the filter bag 17; the driving shaft 2 drives the driving lever 25 to move, and the driving lever 25 contacts the elastic plate 3 in the moving process; when the deflector rod 25 moves to a position where the elastic plate 3 is close to the middle, one side of the deflector rod 25 close to the filter bag 17 contacts the surface of the elastic plate 3, and as the elastic plate 3 is arc-shaped, the deflector rod 25 gradually approaches to the middle part of the elastic plate 3 along with the movement of the deflector rod 25, the deflector rod 25 extrudes the middle part of the elastic plate 3, so that the elastic plate 3 is gradually and reversely bent; when the shifting rod 25 moves to the middle position of the elastic plate 3, the shifting rod 25 extrudes the elastic plate 3 to achieve the maximum reverse bending degree, so that the elastic plate 3 is extruded by the shifting rod 25 to influence the movement to be in a reverse bending shape, the bending degree of the middle part of the elastic plate 3 is greater than the bending degrees of the two ends of the elastic plate 3 after the elastic plate 3 deforms, so that the middle part of the elastic plate 3 beats the filter bag 17, the filter bag 17 generates vibration after being beaten by the elastic plate 3, the filter bag 17 vibrates to drive impurities on the surface of the filter bag 17 to move, and the scraper tube 22 is matched to scrape the surface of the filter bag 17 to scrape the impurities on the surface of the filter bag 17; one end, far away from the arc a, of the arc b in the scraping pipe 22 scrapes the surface of the filter bag 17, the polypropylene solution penetrates through the scraping pipe 22, the scraping pipe 22 drives impurities on the surface of the filter bag 17 to move, and the impurities are influenced by the guiding effect of the inner surface of the arc b in the scraping pipe 22 and move to the inner part of the arc a in the scraping pipe 22 along the inner surface of the arc b in the scraping pipe 22, so that the scraping pipe 22 collects the impurities on the surface of the filter bag 17; when the impurities move on the arc b part in the scraping pipe 22, the impurities are influenced by the guiding action of the arc a in the scraping pipe 22, and the impurities move along the arc a part in the scraping pipe 22 towards the arc b part in the scraping pipe 22, so that the impurities form an annular track movement in the arc a part in the scraping pipe 22; after the elastic plate 3 is extruded by the deflector rod 25 to deform, the elastic plate 3 bends towards the direction close to the filter bag 17 until the middle position of the elastic plate 3 contacts the surface of the filter bag 17 to form flapping; the scraper 23 is driven by the scraper tube 22 to move, one end of the scraper 23 far away from the scraper tube 22 contacts the elastic plate 3 through the filter bag 17, the part of the scraper 23 contacting the elastic plate 3 presses the elastic plate 3, and meanwhile, the scraper 23 is subjected to the reaction force of the elastic plate 3, so that the part of the scraper 23 contacting the elastic plate 3 moves around the hinge joint of the scraper 23 and one end of the arc b far away from the arc a in the scraper tube 22, and the arc-shaped surface in the scraper 23 contacts the elastic plate 3 through the filter bag 17; the arc-shaped surface of the scraper 23 contacts the surface of the filter pocket 17 through the balls 24, so that the scraper 23 contacts the bent part of the elastic plate 3, and when the scraper 23 presses the elastic plate 3, the contact mode of the scraper 23 and the surface of the filter pocket 17 is changed from sliding friction through the balls 24 to rolling friction; when the scraper 23 contacts the elastic plate 3 through the filter bag 17, the scraper 23 contacts the arc-shaped part in the elastic plate 3 to press the elastic plate 3, so that the surface of the filter bag 17 at the contact part of the scraper 23 and the elastic plate 3 is protected; when the elastic plate 3 is bent, the supporting bars 31 support the middle part of the elastic plate 3, so that the middle part of the elastic plate 3 is bent into an arc shape under the influence of deformation, the bending deformation radian of the elastic plate 3 is reduced, and the service life of the elastic plate 3 is prolonged.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.