阅读说明：本技术 一种减少粘釜的聚氯乙烯树脂生产设备 (Polyvinyl chloride resin production equipment capable of reducing sticking of kettle ) 是由 谢淑娥 于 2019-11-14 设计创作，主要内容包括：本发明公开了一种减少粘釜的聚氯乙烯树脂生产设备,其结构包括密封盖体、聚合釜主体、固定支撑脚、搬运提手、加料口、电机传动结构,聚合釜主体为中空圆柱结构,固定支撑脚与聚合釜主体焊接在一起,密封盖体与聚合釜主体相互扣合,聚氯乙烯树脂生产设备通过安装有自除垢装置,当粒子搅拌器在工作时,可以避免聚合物粒子喷溅到聚合罐壳体内壁产生污垢,并且有效的将喷溅的聚合物粒子刮落,避免聚合物粒子产生“鱼眼”效果,有效的提升了聚合物粒子的生产质量。(The invention discloses polyvinyl chloride resin production equipment capable of reducing kettle sticking, which structurally comprises a sealing cover body, a polymerization kettle main body, fixed supporting legs, a carrying handle, a feeding port and a motor transmission structure, wherein the polymerization kettle main body is of a hollow cylindrical structure, the fixed supporting legs and the polymerization kettle main body are welded together, the sealing cover body and the polymerization kettle main body are mutually buckled, and the polyvinyl chloride resin production equipment is provided with a self-descaling device.)

1. The utility model provides a reduce polyvinyl chloride resin production facility who glues cauldron, its structure includes gland bonnet body (1), polymeric kettle main part (2), fixed stay foot (3), transport handle (4), charge door (5), motor drive structure (6), its characterized in that:

the polymerization kettle main body (2) is of a hollow cylindrical structure, the fixed supporting legs (3) are welded with the polymerization kettle main body (2), the sealing cover body (1) and the polymerization kettle main body (2) are buckled with each other, the carrying handle (4) and the polymerization kettle main body (2) are connected together through bolts, the feeding port (5) is connected to the upper surface of the sealing cover body (1) in a penetrating mode, and the motor transmission structure (6) is perpendicular to the sealing cover body (1);

the polymerization kettle main body (2) comprises a heat exchange tube (2a), a particle stirrer (2b), a self-descaling device (2c), a discharge pipeline (2d), a polymerization inner barrel (2e) and a polymerization tank shell (2f), wherein the polymerization tank shell (2f) is of a hollow cylindrical structure, the polymerization inner barrel (2e) is nested in the middle of the polymerization tank shell (2f), the heat exchange tube (2a) is nested around the polymerization tank shell (2f), the particle stirrer (2b) is buckled with a motor transmission structure (6) mutually, the self-descaling device (2c) is tightly leaned against the inner wall of the polymerization tank shell (2f), and the discharge pipeline (2d) is connected with the polymerization tank shell (2f) in a sealing mode.

2. The polyvinyl chloride resin production equipment capable of reducing the sticking to the kettle according to claim 1, wherein: the automatic descaling device (2c) comprises a kettle wall protection structure (c1), stirring rods (c2), a fixed ring frame (c3) and a descaling driving device (c4), wherein the fixed ring frame (c3) is tightly abutted to the inner wall of the polymerization tank shell (2f), the kettle wall protection structure (c1) is uniformly distributed on the inner side of the fixed ring frame (c3) in an annular array mode, the descaling driving device (c4) is buckled with the kettle wall protection structure (c1), and the stirring rods (c2) are tightly abutted to the descaling driving device (c 4).

3. The polyvinyl chloride resin production equipment capable of reducing the sticking to the kettle according to claim 2, wherein: the kettle wall protection structure (c1) comprises a protection blade (c11), a descaling scraper (c12), a blade telescopic cylinder (c13) and a spiral spring (c14), wherein the blade telescopic cylinder (c13) is nested inside a fixed ring frame (c3), the protection blade (c11) and the blade telescopic cylinder (c13) are in clearance fit, the spiral spring (c14) and the protection blade (c11) are abutted together, and the descaling scraper (c12) is attached to the protection blade (c 11).

4. The polyvinyl chloride resin production equipment capable of reducing the sticking to the kettle according to claim 3, wherein: protection blade (c11) comprises resistance seat (111), pressurization chamber (112), rotatory mount (113), flexible piston piece (114), blade main part (115), flexible piston piece (114) adopts clearance fit with the flexible section of thick bamboo of blade (c13), rotatory mount (113) are located in the middle of flexible piston piece (114), blade main part (115) and rotatory mount (113) lock, resistance seat (111) are annular array evenly distributed around flexible piston piece (114), pressurization chamber (112) are located between resistance seat (111) and flexible piston piece (114).

5. The polyvinyl chloride resin production equipment capable of reducing the sticking to the kettle according to claim 2, wherein: the descaling driving device (c4) is composed of a driving plate (c41), a traction block (c42), a sliding sleeve (c43), a self-adjusting rotating frame (c44), an ejector rod (c45) and a push rod fixing seat (c46), wherein the driving plate (c41) is positioned at the bottom of the polymerization processing inner cylinder (2e), the push rod fixing seat (c46) is abutted against a stirring rod (c2), the ejector rod (c45) is buckled with the push rod fixing seat (c46), the self-adjusting rotating frame (c44) is uniformly distributed on the surface of the driving plate (c41) at equal intervals, the sliding sleeve (c43) and the self-adjusting rotating frame (c44) are in an integrated structure, and the traction block (c42) is in clearance fit with the sliding sleeve (c 43).

6. The polyvinyl chloride resin production equipment capable of reducing the sticking to the kettle according to claim 3, wherein: the protection blades (c11) adopt a streamline structure, the arc angle is 28 degrees, 14 protection blades are uniformly distributed on each layer in an annular array mode, and the protection blades are parallel to the inner wall of the polymerization tank shell (2 f).

7. The polyvinyl chloride resin production equipment capable of reducing the tank sticking as claimed in claim 5, wherein: the joint of the ejector rod (c45) and the push rod fixing seat (c46) is connected by a torsion spring.

Technical Field

The invention relates to the field of polyvinyl chloride, in particular to polyvinyl chloride resin production equipment for reducing kettle sticking.

Background

Along with the rapid development of economy and industry in China, the application of polyvinyl chloride is wider and wider, the production scale is also enlarged continuously, a polymerization kettle is a core device in the production process of polyvinyl chloride, during work, monomers, water, an initiator and a dispersing agent are respectively added into a reaction kettle, and simultaneously, the monomers are stirred and crushed into small liquid drops through a stirring system, and the small liquid drops are finally condensed into blocks along with the progress of reaction, but the current technical consideration is not perfect, and the method has the following defects: polymer particles splashed and collided with the kettle wall in the stirring process are easy to adhere to the kettle wall to form kettle-sticking substances, a scale layer is formed on the kettle wall, and the heat transfer effect is influenced due to scaling of the inner wall of the reaction kettle; meanwhile, after the resin is mixed with the sticky kettle, the sticky kettle is not easy to plasticize during processing, transparent small particles are formed in the product, and the non-plasticized particles are called fish eyes in production, so that the product quality is reduced.

Disclosure of Invention

Aiming at the problems, the invention provides polyvinyl chloride resin production equipment capable of reducing kettle sticking.

In order to achieve the purpose, the invention is realized by the following technical scheme: a polyvinyl chloride resin production device capable of reducing kettle sticking structurally comprises a sealing cover body, a polymerization kettle main body, fixed supporting legs, a carrying handle, a feed inlet and a motor transmission structure, wherein the polymerization kettle main body is of a hollow cylindrical structure, the tops of the fixed supporting legs are welded with the bottom of the polymerization kettle main body, the sealing cover body is positioned above the polymerization kettle main body and is mutually buckled with the polymerization kettle main body, the carrying handle is positioned at one third of the surface of the polymerization kettle main body from top to bottom and is connected with the polymerization kettle main body through bolts, the feed inlet is connected to the upper surface of the sealing cover body in a penetrating manner, the bottom of the motor transmission structure is buckled with the upper surface of the sealing cover body and is mutually vertical to the sealing cover body, the polymerization kettle main body is composed of a heat exchange tube, a particle stirrer, a self-descaling device, a discharge pipeline, a polymerization processing inner tube and a polymerization, the polymerization inner tube is nested in the middle of the polymerization tank shell, the heat exchange tubes are nested around the polymerization tank shell, the top of the particle stirrer is buckled with the motor transmission structure, the self-descaling device is close to the inner wall of the polymerization tank shell, and the discharge pipeline is of a cylindrical structure and is connected with the bottom of the polymerization tank shell in a sealing mode at the top end.

As a further improvement of the invention, the self-descaling device comprises a kettle wall protection structure, a stirring rod, a fixed ring frame and a descaling driving device, wherein the fixed ring frame is tightly close to the inner wall of the polymerization tank shell, the kettle wall protection structures are uniformly distributed on the inner side of the fixed ring frame in an annular array, the descaling driving device is horizontally arranged at the bottom of the polymerization tank shell and buckled with the kettle wall protection structure, and the stirring rod is tightly close to the middle of the upper surface of the descaling driving device.

As a further improvement of the invention, the kettle wall protection structure comprises protection blades, a descaling scraper, a blade telescopic cylinder and a spiral spring, wherein the blade telescopic cylinder is nested in the fixed ring frame in an annular array manner, the right end of each protection blade is in clearance fit with the inner wall of the blade telescopic cylinder, the spiral spring is positioned in the blade telescopic cylinder, the left end of each protection blade is abutted against the protection blade, and the descaling scraper is attached to the front surface and the rear surface of each protection blade.

As a further improvement of the invention, the protective blade consists of a resistance seat, a pressurizing cavity, a rotary fixing frame, a telescopic piston block and a blade main body, wherein the periphery of the telescopic piston block is in clearance fit with the inner wall of a blade telescopic cylinder, the rotary fixing frame is positioned in the middle of the telescopic piston block, the blade main body is buckled with the middle of the rotary fixing frame, the four resistance seats are uniformly distributed on the periphery of the telescopic piston block in an annular array, and the pressurizing cavity is positioned between the resistance seat and the telescopic piston block.

As a further improvement of the invention, the descaling driving device consists of a driving plate, a traction block, a sliding sleeve, a self-adjusting rotating frame, an ejector rod and a push rod fixing seat, wherein the driving plate is positioned at the bottom of the polymerization inner barrel and is vertical to the stirring rod, the middle of the upper surface of the push rod fixing seat is tightly close to the bottom of the stirring rod, the ejector rod and the push rod fixing seat are buckled with each other, the self-adjusting rotating frame is uniformly distributed on the surface of the driving plate at equal intervals, the sliding sleeve is positioned above the self-adjusting rotating frame and is integrated with the self-adjusting rotating frame, and the traction block and the sliding sleeve are in clearance fit and buckled with the protective blade.

As a further improvement of the invention, the protective blades are in a streamline structure, the arc angle is 28 degrees, 14 protective blades are uniformly distributed in an annular array on each layer and are parallel to the inner wall of the shell of the polymerization tank, so that an intersection exists between every two protective blades and a circular structure is surrounded, and polymer particles are effectively prevented from splashing and adhering to the wall of the tank in the stirring process.

As a further improvement of the invention, the joint of the ejector rod and the push rod fixing seat is connected by a torsion spring, so that when the push rod fixing seat rotates, the ejector rod pulls the drive plate to rotate, and when the drive plate reaches the limit position, the ejector rod is pressed inwards against the push rod fixing seat.

As a further improvement of the invention, the inner wall of the blade telescopic cylinder adopts a corrugated structure.

As a further improvement of the invention, a self-resetting elastic sheet is arranged between the blade main body and the telescopic piston block.

The invention has the beneficial effects that: polyvinyl chloride resin production facility is through installing from scale removal device, when the particle agitator during operation, can avoid the polymer particle splash to polymerization tank shells inner wall to produce the dirt to effectual polymer particle with the splash is scraped off, avoids the polymer particle to produce "fish eye" effect, the effectual production quality who promotes the polymer particle.

When the self-descaling device works, after the particle stirrer stirs and polymer particles are splashed, the polymer particles are splashed on the surface of the protective blade, and simultaneously, the stirring rod pulls the push rod fixing seat to synchronously rotate along with the counterclockwise rotation of the particle stirrer, so that the push rod is buckled with the inner wall of the driving plate and drives the driving plate to rotate, the traction block drives the protective blade to move leftwards, the protective blade moves inwards along the blade telescopic cylinder, the blade main body extrudes the elastic sheet and rotates counterclockwise by taking the rotary fixing frame as a circle center and inclines downwards, and the pressurizing cavity drives the resistance seat to move telescopically in the telescopic piston block, so that intermittent vibration is generated between the blade main body and the descaling scraper, the polymer particles on the surface of the blade main body are quickly fallen off, and simultaneously, the polymer particles fall into the bottom of the polymerization processing inner cylinder, avoid the polymer particles to generate the 'fish eye' effect, and effectively improve the production quality of the polymer particles.

Drawings

FIG. 1 is a schematic structural view of a polyvinyl chloride resin production apparatus with reduced kettle sticking according to the present invention.

FIG. 2 is a schematic sectional view of a main body of a polymerizer of the invention.

FIG. 3 is a schematic top view of the descaling apparatus according to the present invention.

FIG. 4 is a schematic structural diagram of A in FIG. 3 according to the present invention.

FIG. 5 is a side view of the protective blade of the present invention.

FIG. 6 is a partial sectional view of the descaling driving device according to the present invention.

In the figure: a sealing cover body-1, a polymerizer main body-2, fixed supporting feet-3, a carrying handle-4, a charging port-5, a motor transmission structure-6, a heat exchange tube-2 a, a particle stirrer-2 b, a self-descaling device-2 c, a discharge pipeline-2 d, a polymerization processing inner cylinder-2 e, a polymerizer shell-2 f, a kettle wall protection structure-c 1, a stirring rod-c 2, a fixed ring frame-c 3, a descaling driving device-c 4, a protective blade-c 11, a descaling scraper-c 12, a blade expansion cylinder-c 13, a spiral spring-c 14, a resistance seat-111, a pressurizing cavity-112, a rotary fixed frame-113, an expansion piston block-114, a blade main body-115, a driving plate-c 41, a traction block-c 42, a motor transmission structure-6, a heat exchange tube-2 a particle stirrer, a, A sliding sleeve-c 43, a self-adjusting rotating frame-c 44, a push rod-c 45 and a push rod fixing seat-c 46.

Detailed Description

In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, fig. 1 to fig. 6 schematically show the structure of the polyvinyl chloride resin production equipment according to the embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.