Polyvinyl chloride drying equipment

Abstract

The utility model belongs to the field of drying equipment, and particularly relates to polyvinyl chloride drying equipment which comprises a drying tank, an air blower is connected to the right side of the drying tank through a pipeline, a controller is arranged on the right side of the drying tank, a top cover is arranged at the top end of the drying tank, and the top cover is in threaded connection with the drying tank. The top end of the top cover is fixedly connected with an air outlet pipe, and the bottom end of the air outlet pipe is fixedly connected with a filter; an auxiliary drying assembly is arranged at the top end of the drying tank and used for stirring polyvinyl chloride particles in the drying tank so that the polyvinyl chloride particles can be dried more evenly. Through the structural design of the auxiliary drying assembly, the function of assisting in scattering polyvinyl chloride particles is achieved, so that the polyvinyl chloride particles can be sufficiently blown by hot air, and the drying efficiency of polyvinyl chloride can be effectively improved; the problem that the polyvinyl chloride particles cannot be blown through and are not completely dried when being excessively stacked is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying equipment field, concretely is a kind of polyvinyl chloride drying equipment. BACKGROUND

[0002] Polyvinyl chloride is referred to as PVC, it is a kind of thermoplastic plastic widely used in industry and daily life, before processing, it is dried using special drying equipment, to avoid the situation that finished product is prone to cracking due to the large water content of polyvinyl chloride particles.

[0003] The existing polyvinyl chloride drying equipment can refer to Chinese patent with publication number CN218993913U, which discloses a polyvinyl chloride drying equipment in detail, which comprises a cylinder, a discharge pipe is communicated with the bottom end of the cylinder, a valve is installed on the discharge pipe, a feed hopper is communicated with the upper end of the cylinder near the rear edge, a hopper cover is threadedly connected to the upper end of the feed hopper, the beneficial effects of the utility model are that through the cooperation of the feed hopper, hopper cover, sleeve ring, activated carbon filter screen, drive assembly, shaft, stirring piece, connecting column, triangular plate and drying assembly, not only can the granular polyvinyl chloride be uniformly dried, but also the toxic substances generated during the heating and drying of the granular polyvinyl chloride can be purified and discharged to the outside, avoiding affecting the air quality around and ensuring the health of the surrounding workers, and the granular polyvinyl chloride is not easy to gather at the communication between the cylinder and the discharge pipe when discharged after heating and drying, the discharge is smooth, bringing convenience.

[0004] Although the existing polyvinyl chloride drying equipment can treat the waste gas generated during drying, when drying the polyvinyl chloride particles, the polyvinyl chloride particles are completely blown and dispersed by wind force for drying, and when the polyvinyl chloride particles are excessively accumulated, the particles cannot be completely blown through and the drying is not complete; therefore, a polyvinyl chloride drying equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that the existing polyvinyl chloride drying equipment completely relies on wind force to blow and disperse the polyvinyl chloride particles for drying when drying the polyvinyl chloride particles, and when the polyvinyl chloride particles are excessively accumulated, the particles cannot be completely blown through and the drying is not complete, the utility model proposes a polyvinyl chloride drying equipment.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of polyvinyl chloride drying equipment described in the utility model, including drying tank, the right side of the drying tank is connected with air blower by pipeline, the right side of the drying tank is provided with controller, the top of the drying tank is provided with top cover, the top cover is threadedly connected with drying tank, the top of the top cover is fixedly connected with air outlet pipe, the bottom of the air outlet pipe is fixedly connected with filter;The top of the drying tank is provided with auxiliary drying assembly, and the auxiliary drying assembly is used to make the polyvinyl chloride particles in the inside of the drying tank more uniform by stirring.

[0007] The auxiliary drying assembly includes a fixed seat, which is fixedly connected to the inner wall at the center of the top cover. The bottom end of the fixed seat is rotatably connected to a passive fan blade. The outer side of the passive fan blade is fixedly connected to a first gear at a position close to the top end. The first gear is engaged with a reduction gear. The reduction gear is engaged with a tooth ring, which is fixedly connected to the inner wall of a transmission cavity. The transmission cavity is opened at the bottom end of the top cover. The bottom end of the reduction gear is rotatably connected to the top end of a rotating disc. The bottom end of the rotating disc is fixedly connected to a gas inlet. The rotating disc is rotatably connected to the inner wall of the transmission cavity. The bottom end of the rotating disc is also provided with a stirring assembly, which is used to stir the polyvinyl chloride particles. The top end of the rotating disc is provided with a one-way air inlet assembly, which is used to assist in driving the passive fan blade to rotate.

[0008] Preferably, the one-way air inlet assembly includes an air inlet, which is opened at a position close to the top end of the gas inlet. A fixed ring is fixedly connected to the inner wall of the air inlet. A valve plate is fixedly connected to the inner wall of the fixed ring. The valve plate is provided with four groups. A reverse prevention frame is also fixedly connected to the inner wall of the fixed ring.

[0009] Preferably, the four groups of valve plates are made of silicone rubber material, and the four groups of reverse prevention frames are closely attached to each other. The reverse prevention frame is designed in the shape of a "cross", and the center of the reverse prevention frame is designed in a circular shape.

[0010] Preferably, the gas inlet is designed in the shape of a horn, and the bottom end of the fixed seat extends to the inside of the top end of the gas inlet. The reduction gear and the first gear are both made of engineering plastic material.

[0011] Preferably, the stirring assembly includes a connecting block, which is fixedly connected to the bottom end of the rotating disc. An active block is sleeved in the inside of the connecting block. A spring is also provided in the inside of the connecting block. The bottom end of the active block is fixedly connected to a main stirring rod. A top block is fixedly connected to a position close to the top end of the inner wall of the drying tank. The outer side of the main stirring rod is fixedly connected to a vice stirring rod.

[0012] Preferably, the dialing assembly is provided with four groups, and the four groups of dialing assemblies are uniformly distributed in a circumferential array at the bottom end of the rotating disc.

[0013] Preferably, the bottom end of the spring is fixedly connected with the top end of the movable block, and the top end of the spring is fixedly connected on the inner wall of the connecting block.

[0014] Preferably, the inner wall of the connecting block is fixedly connected with a sliding block at a position close to the bottom end, the sliding block is slidingly connected in a sliding groove, and the sliding groove is arranged on the movable block.

[0015] Preferably, the top end of the top block is arc-shaped, the top block is provided with multiple groups, and the multiple groups of top blocks are uniformly distributed in a circumferential array on the inner wall of the drying tank.

[0016] Preferably, the main dialing rod is in an overall "L" shape, the two sides of the main dialing rod are streamlined, the bottom end of the main dialing rod is tapered, the auxiliary dialing rod is in a cylindrical shape, the side of the main dialing rod close to the inner wall of the drying tank is fixedly connected with a friction block, and the friction block is made of nylon.

[0017] The utility model discloses the advantages are:

[0018] 1. The utility model discloses a structure design of auxiliary drying assembly realizes the function of auxiliary scattering polyvinyl chloride particles, so that polyvinyl chloride particles can be fully blown by hot air, and the efficiency of drying polyvinyl chloride can be effectively improved, solves the problem that the existing polyvinyl chloride drying equipment is completely blown and scattered by wind when drying polyvinyl chloride particles, when polyvinyl chloride particles are excessively accumulated, the particles are gathered and cannot be completely blown through, and the drying is not complete.

[0019] 2. The utility model discloses the structure design of one -way air intake component realizes the function that the airflow that is not collected in the gas collection port is guided to the inside of the gas collection port to assist the rotation of passive fan blade, and the rotation efficiency of passive fan blade is improved under the condition that the power carried by airflow is efficiently utilized without increasing energy consumption.

[0020] 3. The utility model discloses a structure design of the poking assembly, realize the function that the polyvinyl chloride particle in the dry jar is poked and scattered, when working, the rotary disc drives the main poking rod to rotate, and the main poking rod drives the vice poking rod to poke the polyvinyl chloride particle in the dry jar, and the main poking rod adopts streamline design and can effectively reduce the resistance when moving in the dry jar, and the top of the main poking rod is periodically extruded by the top block when rotating with the rotary disc, drives the main poking rod and the vice poking rod to move upward as a whole and then falls again, and the polyvinyl chloride particle in the dry jar can be poked and scattered vertically through repeated up-down impact. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is the overall three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the local side view sectional three-dimensional structure schematic diagram of the utility model;

[0024] Figure 3 It is the Figure 2 Amplification structure schematic diagram of place A in the utility model;

[0025] Figure 4 It is the Figure 2 Amplification structure schematic diagram of place B in the utility model;

[0026] Figure 5 It is the three-dimensional structure schematic diagram of dry jar and top block of the utility model;

[0027] Figure 6 It is the local explosion structure schematic diagram of the utility model;

[0028] Figure 7 It is the three-dimensional structure schematic diagram of one-way air inlet assembly of the utility model;

[0029] Figure 8 It is the three-dimensional structure schematic diagram of fixed seat, passive fan blade and first gear of the utility model;

[0030] Figure 9 It is the three-dimensional structure schematic diagram of rotary disc and gas collecting port of the utility model;

[0031] Figure 10 It is the three-dimensional structure schematic diagram of reduction gear and gear ring of the utility model.

[0032] In the figure: 1, drying tank; 2, air blower; 3, controller; 4, top cover; 5, air outlet pipe; 6, filter; 71, fixed seat; 72, passive fan blade; 73, first gear; 74, speed reducer; 75, gear ring; 76, transmission cavity; 77, rotating disc; 78, air inlet; 79, fixed ring; 80, valve piece; 81, check frame; 82, connecting block; 83, movable block; 84, spring; 85, sliding block; 86, sliding groove; 87, main toggle lever; 88, friction block; 89, top block; 90, secondary toggle lever; 91, gas collection port. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] EMBODIMENT

[0035] Please refer to Figures 1-10 As shown in the figure, a polyvinyl chloride drying equipment, including drying tank 1, the drying tank 1 is connected with air blower 2 on the right side by pipeline, the drying tank 1 is provided with controller 3 on the right side, the drying tank 1 is provided with top cover 4 on the top end, the top cover 4 is connected with drying tank 1 by screw thread, the top end of top cover 4 is fixedly connected with air outlet pipe 5, the bottom end of air outlet pipe 5 is fixedly connected with filter 6;Its characterized in that: the top end of drying tank 1 is provided with auxiliary drying assembly, the auxiliary drying assembly is used to stir polyvinyl chloride particles in drying tank 1 to make it dry more evenly, through the structural design of auxiliary drying assembly, the function of auxiliary dispersing polyvinyl chloride particles is realized, so that polyvinyl chloride particles can be fully blown by hot air, the efficiency of drying polyvinyl chloride can be effectively improved, the problem that when drying polyvinyl chloride particles, polyvinyl chloride particles are completely accumulated and rely on wind to blow and disperse to dry, when polyvinyl chloride particles are accumulated excessively, particles are gathered and cannot be completely blown through, resulting in incomplete drying is solved;

[0036] The auxiliary drying assembly comprises a fixing seat 71 fixedly connected to the inner wall at the center position of the top cover 4, a passive fan blade 72 rotationally connected to the bottom end of the fixing seat 71, a first gear 73 fixedly connected to the outer side of the passive fan blade 72 at a position close to the top end, a speed reduction gear 74 engaged with the first gear 73, a tooth ring 75 engaged with the speed reduction gear 74 and fixedly connected to the inner wall of a transmission cavity 76, the transmission cavity 76 being formed in the bottom end of the top cover 4, the bottom end of the speed reduction gear 74 being rotationally connected to the top end of a rotating disc 77, the bottom end of the rotating disc 77 being fixedly connected with a gas collecting port 91, the rotating disc 77 being rotationally connected to the inner wall of the transmission cavity 76, the bottom end of the rotating disc 77 further being provided with a poking assembly for poking the polyvinyl chloride particles, and the top end of the rotating disc 77 being provided with a one-way air inlet assembly for assisting in driving the passive fan blade 72 to rotate.

[0037] Further, the one-way air inlet assembly comprises an air inlet 78, which is arranged at a position close to the top end of the air collecting port 91. The inner wall of the air inlet 78 is fixedly connected with a fixed ring 79. The inner wall of the fixed ring 79 is fixedly connected with valve plates 80. The valve plates 80 are provided in four groups. The inner wall of the fixed ring 79 is further fixedly connected with check frames 81. The valve plates 80 are all made of silicone rubber. The four check frames 81 are closely attached to each other. The check frames 81 are designed in a whole "cross" shape. The center of the check frames 81 is designed in a circular shape. The air collecting port 91 is designed in a whole horn shape. The horn-shaped air collecting port 91 can effectively collect air flow to drive the passive fan blade 72 to rotate. The bottom end of the fixed seat 71 extends to the inside of the top end of the air collecting port 91. The air flow that is not collected by the air collecting port 91 will contact the bottom end of the top cover 4 and then gather at the bottom end of the top cover 4. With the continuous gathering of the air flow, the pressure generated by the air flow continuously increases. Under the action of the pressure, the air flow extrudes and pushes the valve plates 80 to deform in the direction of the passive fan blade 72, so that the air flow can enter the inside of the air collecting port 91 through the air inlet 78 and then assist in driving the passive fan blade 72 to rotate. When the air flow in the air collecting port 91 wants to flow outward through the air inlet 78, the valve plates 80 will be pushed to move towards the check frames 81. The valve plates 80 are blocked by the check frames 81 and cannot be opened. The combination of the valve plates 80 and the check frames 81 has the effect of assisting one-way air inlet. The reduction gear 74 and the first gear 73 are both made of engineering plastic. The actuating assembly comprises a connecting block 82, which is fixedly connected to the bottom end of the rotating disc 77. The inside of the connecting block 82 is sleeved with a movable block 83. The inside of the connecting block 82 is further provided with a spring 84. The bottom end of the movable block 83 is fixedly connected with a main actuating rod 87. The inside of the top end of the drying tank 1 is fixedly connected with a top block 89. The outer side of the main actuating rod 87 is fixedly connected with a secondary actuating rod 90. The actuating assembly is provided in four groups and is evenly distributed in a circumferential array at the bottom end of the rotating disc 77. The bottom end of the spring 84 is fixedly connected with the top end of the movable block 83. The top end of the spring 84 is fixedly connected to the inner wall of the connecting block 82. The inner wall of the connecting block 82 is fixedly connected with a sliding block 85 at a position close to the bottom end. The sliding block 85 is slidingly connected to a sliding groove 86, which is arranged on the movable block 83. The top end of the top block 89 is designed in an arc shape. The top block 89 is provided in multiple groups and is evenly distributed in a circumferential array on the inner wall of the drying tank 1. The main actuating rod 87 is designed in a whole "L" shape and is designed in a streamlined shape on both sides. The streamlined design of the main actuating rod 87 can effectively reduce the resistance when moving in the inside of the drying tank 1. The bottom end of the main actuating rod 87 is designed in a conical shape. The conical design of the bottom end can effectively reduce the resistance when the main actuating rod 87 moves up and down.The auxiliary toggle lever 90 is cylindrical in design, and the top end of the main toggle lever 87 is fixedly connected with a friction block 88 on one side close to the inner wall of the drying tank 1. The friction block 88 is made of nylon material, which has excellent wear resistance and can ensure that the overall assembly will not abnormally wear after long-term use.

[0038] When the device is used to dry polyvinyl chloride particles, first, the top cover 4 is removed by rotating it, and the polyvinyl chloride particles are poured into the inside of the drying tank 1 through the top end of the drying tank 1. Then the top cover 4 is put on and tightened to seal the drying tank 1 and the top cover 4. Then the controller 3 controls the blower 2 to start, and the blower 2 blows dry hot air into the inside of the drying tank 1. The hot air enters the inside of the drying tank 1 through the pipeline, and dries the polyvinyl chloride particles in the drying tank 1. In the drying process, the hot air continuously follows the hot air to flow upwards, and most of it is collected by the gas collecting port 91 and blown into the inside of the gas collecting port 91 to drive the passive fan blade 72 to rotate. The passive fan blade 72 drives the first gear 73 fixedly connected thereto to rotate synchronously, and the first gear 73 drives the meshing reduction gear 74 to rotate synchronously. The reduction gear 74 reduces the speed and increases the torque. The three sets of reduction gears 74 drive the rotating disc 77 to rotate. When the rotating disc 77 rotates, it drives the main toggle lever 87 and the auxiliary toggle lever 90 to rotate synchronously with the rotation of the rotating disc 77 through the connecting block 82 and the movable block 83, and stirs the polyvinyl chloride particles in the inside of the drying tank 1. This makes the hot air fully contact with the polyvinyl chloride particles, improves the drying efficiency of the polyvinyl chloride particles, and the main toggle lever 87 is periodically abutted by the top block 89 when it rotates synchronously with the rotating disc 77, so that the main toggle lever 87 is driven by the top block 89 to move upwards. When the main toggle lever 87 moves upwards, it drives the movable block 83 fixedly connected thereto to move upwards synchronously, so that the movable block 83 compresses the spring 84 to produce elastic deformation. When the top block 89 is not abutted by the friction block 88, the main toggle lever 87 moves downwards to the original position under the action of gravity and the restoring force of the spring 84. Through such periodic up-and-down reciprocating motion, the polyvinyl chloride particles in the inside of the drying tank 1 are dispersed from two axial directions at the same time, which further improves the drying efficiency of the polyvinyl chloride particles and effectively avoids the situation that the bottom polyvinyl chloride particles are overheated and melted while the top polyvinyl chloride particles are still in a relatively humid state due to excessive accumulation of polyvinyl chloride particles in the prior art. This improves the uniformity of the drying of polyvinyl chloride particles.

[0039] When the movable block 83 is moving, the sliding block 85 on the inner wall of the fixedly connected connecting block 82 synchronously slides in the inside of the sliding groove 86, and through the combined action of the sliding block 85 and the sliding groove 86, the effect of limiting the moving distance of the movable block 83 and the main driving rod 87 is achieved, so that the movable block 83 is prevented from moving excessively and coming out from the inside of the connecting block 82.

[0040] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A polyvinyl chloride drying device, comprising a drying tank (1), wherein a blower (2) is connected to the right side of the drying tank (1) via a pipe, a controller (3) is provided on the right side of the drying tank (1), a top cover (4) is provided at the top of the drying tank (1), the top cover (4) is threadedly connected to the drying tank (1), an air outlet pipe (5) is fixedly connected to the top of the top cover (4), and a filter (6) is fixedly connected to the bottom of the air outlet pipe (5); characterized in that: The top end of the drying tank (1) is provided with an auxiliary drying assembly for more uniform drying of the PVC particles inside the drying tank (1). The auxiliary drying assembly comprises a fixed seat (71) fixedly connected to the inner wall at the center of the top cover (4), the bottom end of the fixed seat (71) is rotatably connected with a driven fan blade (72), the outer side of the driven fan blade (72) is fixedly connected with a first gear (73) at a position close to the top end, the first gear (73) is engaged with a reduction gear (74), the reduction gear (74) is engaged with a toothed ring (75), the toothed ring (75) is fixedly connected to the inner wall of a transmission cavity (76), the transmission cavity (76) is opened at the bottom end of the top cover (4), the bottom end of the reduction gear (74) is rotatably connected with the top end of a rotating disc (77), the bottom end of the rotating disc (77) is fixedly connected with a gas inlet (91), the rotating disc (77) is rotatably connected with the inner wall of the transmission cavity (76), the bottom end of the rotating disc (77) is also provided with a stirring assembly for stirring the PVC particles, the top end of the rotating disc (77) is provided with a one-way air inlet assembly for auxiliary driving the driven fan blade (72) to rotate.

2. A polyvinyl chloride drying apparatus according to claim 1, wherein: The one-way air inlet assembly comprises an air inlet (78) opened at a position close to the top end of the gas inlet (91), a fixed ring (79) is fixedly connected to the inner wall of the air inlet (78), a valve plate (80) is fixedly connected to the inner wall of the fixed ring (79), the valve plate (80) is provided with four groups, and a non-return frame (81) is also fixedly connected to the inner wall of the fixed ring (79).

3. A polyvinyl chloride drying apparatus as claimed in claim 2, wherein: The four groups of valve plates (80) are made of silicone rubber material, and the four groups of non-return frames (81) are closely attached to each other, the non-return frame (81) is designed as a whole "cross" shape, and the center of the non-return frame (81) is designed as a circle.

4. A polyvinyl chloride drying apparatus as claimed in claim 3, wherein: The gas inlet (91) is designed as a whole "horn" shape, and the bottom end of the fixed seat (71) extends to the inside of the top end of the gas inlet (91), the reduction gear (74) and the first gear (73) are both made of engineering plastic material.

5. A polyvinyl chloride drying apparatus as claimed in claim 4, wherein: The stirring assembly comprises a connecting block (82) fixedly connected to the bottom end of the rotating disc (77), an active block (83) is sleeved in the connecting block (82), a spring (84) is also arranged in the connecting block (82), the bottom end of the active block (83) is fixedly connected with a main stirring rod (87), a top block (89) is fixedly connected to the inner wall of the drying tank (1) at a position close to the top end, and a vice stirring rod (90) is fixedly connected to the outer side of the main stirring rod (87).

6. A polyvinyl chloride drying apparatus as claimed in claim 5, wherein: The stirring assembly is provided with four groups, and the four groups of stirring assemblies are evenly distributed in a circumferential array at the bottom end of the rotating disc (77).

7. A polyvinyl chloride drying apparatus as claimed in claim 6, wherein: The bottom end of the spring (84) is fixedly connected with the top end of the active block (83), and the top end of the spring (84) is fixedly connected to the inner wall of the connecting block (82).

8. A polyvinyl chloride drying apparatus as claimed in claim 7, wherein: The inner wall of the connecting block (82) is fixedly connected with a sliding block (85) near the bottom end, the sliding block (85) is slidingly connected in a sliding groove (86), and the sliding groove (86) is arranged on the movable block (83).

9. A polyvinyl chloride drying apparatus as claimed in claim 8, wherein: The top end of the top block (89) is arc-shaped, a plurality of groups of the top block (89) are uniformly distributed in a circumferential array on the inner wall of the drying tank (1).

10. A polyvinyl chloride drying apparatus as claimed in claim 9, wherein: The main dialing rod (87) is in an overall "L" shape, the two sides of the main dialing rod (87) are streamlined, the bottom end of the main dialing rod (87) is tapered, the auxiliary dialing rod (90) is in a cylindrical shape, the top end of the main dialing rod (87) is fixedly connected with a friction block (88) near one side of the inner wall of the drying tank (1), and the friction block (88) is made of nylon.

Images