Polyvinyl chloride drying equipment

Abstract

The utility model discloses polyvinyl chloride drying equipment, which relates to the technical field of polyvinyl chloride processing, and comprises a paddle dryer, an upper end cover and a discharge box, the bottom end of the discharge box is provided with a filter assembly, the filter assembly comprises an indexable bracket, a flow baffle block, a scum baffle frame and a separation filter screen, the scum blocking frame and the separation filter screen are horizontally installed in the indexable bracket, a plurality of inclined hinge plates are installed in the separation filter screen, the two ends of the indexable bracket are rotationally connected with the discharging box, and through rotation of the power swing arm rod, the top end of the indexable bracket is rotationally connected with the discharging box. The top end of the power swing arm rod generates thrust on the indexable bracket, so that the indexable bracket swings on the outer side of the discharging box, all parts of the indexable bracket can obtain different degrees of movement and friction through swinging, and impurities and residual particles on the surfaces of the scum blocking frame and the separation filter screen can be cleared away.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of polyvinyl chloride processing technology, especially to a polyvinyl chloride drying equipment. BACKGROUND

[0002] Polyvinyl chloride drying is an important link in the production process of polyvinyl chloride, aiming to remove moisture and other volatile substances in polyvinyl chloride materials to meet the requirements of product quality and subsequent processing. In practical applications, the equipment usually needs the following technologies:

[0003] 1. Paddle, wet material is stirred by rotation to make the material fully contact with the heat carrier and hot surface;

[0004] 2. Hollow shaft, heat medium can be introduced into the inside to provide heat for the paddle;

[0005] 3. Shell, as a space for containing material and paddle;

[0006] 4. Feeding / discharging device, used for conveying polyvinyl chloride particles;

[0007] At present, the existing polyvinyl chloride drying equipment (such as patent publication number: CN218993913U) discloses a polyvinyl chloride drying equipment, which can uniformly dry the granular polyvinyl chloride through the cooperation of the feeding hopper, hopper cover, sleeve ring, activated carbon filter screen, driving assembly, rotating shaft, stirring piece, connecting column, triangular plate and drying assembly. The toxic substances generated during the heating and drying process of the granular polyvinyl chloride can be purified and discharged to the outside, avoiding affecting the surrounding air quality.

[0008] The continuous collision and friction between the rotating paddle and polyvinyl chloride particles can cause the particles to break, making the particle size smaller and unevenly distributed. At the same time, dust and impurities can be mixed in the drying process, which can directly be discharged, causing different sizes of polyvinyl chloride particles to mix with each other, reducing the purity of the polyvinyl chloride particles and affecting the quality of subsequent plasticization. Utility model content

[0009] In view of the deficiencies of the prior art, the utility model provides a polyvinyl chloride drying equipment to solve the technical problems of continuous collision and friction between the rotating paddle and polyvinyl chloride particles, which can cause the particles to break, making the particle size smaller and unevenly distributed. At the same time, dust and impurities can be mixed in the drying process, which can directly be discharged, causing different sizes of polyvinyl chloride particles to mix with each other, reducing the purity of the polyvinyl chloride particles.

[0010] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0011] The utility model provides a kind of polyvinyl chloride drying equipment, including paddle dryer, upper end cap and discharge box, the bottom end of the discharge box is provided with filter assembly, the filter assembly includes indexable bracket, flow block, dross blocking frame and separation screen, the dross blocking frame and separation screen are horizontally installed in the inside of indexable bracket, the inside of the separation screen is installed with multiple inclined leaf plates, the both ends of the indexable bracket are rotatably connected with discharge box.

[0012] Preferably: the bottom end of the indexable bracket is provided with adjusting assembly, the adjusting assembly includes docking base and power swing arm rod, the top end of the power swing arm rod is rotatably connected with docking base;

[0013] The bottom end of the paddle dryer is fixedly installed with two rotating discs for supporting, the inside of the two rotating discs is rotatably installed with the same transmission support seat connected with the power swing arm rod.

[0014] Preferably: the end of the power swing arm rod is connected with the transmission support seat through connecting shaft, and the end of the power swing arm rod is fixed to the outside of the transmission support seat.

[0015] The inside of the rotating disc is provided with transmission rod, and the end of the transmission rod is connected with the motor of the paddle dryer.

[0016] The inside of the paddle dryer is installed with rotating paddle, and the top end of the upper end cap is installed with feeding port.

[0017] Compared with the prior art, the utility model has the following beneficial effects.

[0018] In the utility model, the polyvinyl chloride particles are intercepted on the surface of the separation screen through the interception of the separation screen, and the impurities and dust in the polyvinyl chloride particles are filtered into the inside of the dross blocking frame through the separation screen, a plurality of inclined leaf plates are installed in the inside of the dross blocking frame, the dust and impurities are guided downward through the dross blocking frame, the polyvinyl chloride particles discharged from the paddle dryer are filtered, the purity of the polyvinyl chloride particles is ensured, and the product quality is improved.

[0019] In the utility model, the power swing arm rod rotates, the top end of the power swing arm rod generates thrust on the indexable bracket, the indexable bracket swings on the outside of the discharge box, the swinging of the indexable bracket can make the polyvinyl chloride particles be evenly spread on the surface of the separation screen, the filtering speed is increased, through the swinging, each part of the indexable bracket can move and rub to different degrees, which helps to remove the impurities and residual particles on the surface of the dross blocking frame and the separation screen. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail below with the accompanying drawings.

[0021] Figure 1 It is the structure diagram of the paddle dryer of the utility model;

[0022] Figure 2 It is the structure diagram of the indexable bracket of the utility model;

[0023] Figure 3 It is the structure diagram of the scum blocking frame of the utility model;

[0024] Figure 4 It is the structure diagram of the power swing arm rod of the utility model.

[0025] In the drawing: 11, paddle dryer;12, upper end cover;13, discharge box;14, indexable bracket;15, butt joint base;16, power swing arm rod;17, flow blocking block;18, scum blocking frame;19, separation filter screen;21, transmission support seat;22, rotary disc. DETAILED DESCRIPTION

[0026] The embodiment of the application provides a polyvinyl chloride drying equipment, effectively solves the problem that the rotating paddle and the polyvinyl chloride particles continuously collide and rub, which can cause the particles to be broken, the particle size is small and the distribution is uneven, and dust impurities are mixed in the drying process, and the polyvinyl chloride particles of different sizes are mixed, the purity of the polyvinyl chloride particles is reduced, the polyvinyl chloride particles are intercepted on the surface of the separation filter screen through the interception of the separation filter screen, and the impurities and dust in the polyvinyl chloride particles are filtered into the interior of the scum blocking frame through the separation filter screen, a plurality of inclined leaf plates are installed in the interior of the scum blocking frame, the dust impurities are guided downward through the scum blocking frame, the polyvinyl chloride particles discharged from the paddle dryer are filtered, the purity of the polyvinyl chloride particles is ensured, and the product quality is improved. EMBODIMENT

[0027] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the technical scheme in the embodiment of the application effectively solves the technical problem that the rotating paddle and the polyvinyl chloride particles continuously collide and rub, which can cause the particles to be broken, the particle size is small and the distribution is uneven, and dust impurities are mixed in the drying process, and the polyvinyl chloride particles of different sizes are mixed, the purity of the polyvinyl chloride particles is reduced, and the overall idea is as follows:

[0028] The utility model provides a kind of polyvinyl chloride drying equipment, including paddle dryer 11, upper end cap 12 and discharge box 13, the bottom of discharge box 13 is provided with filter assembly, filter assembly includes indexable bracket 14, flow block 17, dross blocking frame 18 and separation filter screen 19, dross blocking frame 18 and separation filter screen 19 are horizontally installed in the inside of indexable bracket 14, the inside of separation filter screen 19 is installed with multiple inclined leaf plates, the both ends of indexable bracket 14 are rotatably connected with discharge box 13, material dried in the inside of paddle dryer 11 is discharged by discharge box 13, polyvinyl chloride particles directly fall in the inside of indexable bracket 14, while polyvinyl chloride particles contact first with separation filter screen 19, by the interception of separation filter screen 19, polyvinyl chloride particles are intercepted on the surface of separation filter screen 19, while impurities and dust in the inside of polyvinyl chloride particles are filtered to the inside of dross blocking frame 18 by separation filter screen 19, multiple inclined leaf plates are installed in the inside of dross blocking frame 18, dust impurities are guided downward by dross blocking frame 18, polyvinyl chloride particles discharged by paddle dryer 11 are filtered, ensure the purity of polyvinyl chloride particles, improve product quality, remove these substances that cause blockage in advance, ensure that the feeding of downstream equipment is smooth, reduce production interruption and equipment failure caused by blockage;

[0029] The bottom of indexable bracket 14 is provided with adjusting assembly, adjusting assembly includes docking base 15 and power swing arm rod 16, the top of power swing arm rod 16 is rotatably connected with docking base 15, by the rotation of power swing arm rod 16, while the top of indexable bracket 14 is rotatably connected with discharge box 13, the top of power swing arm rod 16 generates thrust to indexable bracket 14, so that indexable bracket 14 swings outside discharge box 13, the swing of indexable bracket 14 can make polyvinyl chloride particles more evenly spread on the surface of separation filter screen 19, increase the speed of filtration, by swinging, each part of indexable bracket 14 can be moved and rubbed to different degrees, which helps to remove impurities and residual particles on the surface of dross blocking frame 18 and separation filter screen 19;

[0030] The bottom of paddle dryer 11 is fixedly installed with two rotating discs 22 for supporting, the same transmission support seat 21 connected with power swing arm rod 16 is rotatably installed in the inside of two rotating discs 22, the tail end of power swing arm rod 16 is connected with transmission support seat 21 through connecting shaft, and the tail end of power swing arm rod 16 is fixed outside transmission support seat 21;

[0031] The inside of the paddle dryer 11 is provided with rotating paddles, the top end of the upper end cover 12 is provided with a feeding port, the inside of the rotating disc 22 is provided with a transmission rod, the tail end of the transmission rod is connected with the motor of the paddle dryer 11, the transmission support base 21 is rotated by driving, the transmission support base 21 rotates at a constant speed in the inside of the rotating disc 22, at the same time, the transmission support base 21 drives the power swing arm rod 16 to rotate, the tail end of the power swing arm rod 16 rotates synchronously with the transmission support base 21, and the power swing arm rod 16 swings in the inside of the transmission support base 21.

[0032] Working principle:

[0033] Firstly, the PVC particles are conveyed into the inside of the paddle dryer 11 through the feeding hopper or the conveying pipeline, the driving device of the paddle dryer 11 is started, and the paddles are driven to rotate at a certain rotating speed, the paddles continuously stir the PVC particles in the rotating process, so that the particles fully contact with the heated surface, the heat transfer and moisture diffusion between the particles are promoted, the drying speed is accelerated, the stirring can prevent the particles from caking or accumulating in the dryer, and the uniformity of drying is ensured.

[0034] Secondly, the transmission support base 21 is rotated by driving, the transmission support base 21 rotates at a constant speed in the inside of the rotating disc 22, at the same time, the transmission support base 21 drives the power swing arm rod 16 to rotate, the tail end of the power swing arm rod 16 rotates synchronously with the transmission support base 21, and the power swing arm rod 16 swings in the inside of the transmission support base 21, the top end of the power swing arm rod 16 is rotationally connected with the discharge box 13, the top end of the power swing arm rod 16 generates a pushing force on the rotatable bracket 14, the rotatable bracket 14 swings outside the discharge box 13, and the PVC particles are more evenly spread on the surface of the separation filter screen 19, and the filtering speed is increased.

[0035] The PVC particles are intercepted on the surface of the separation filter screen 19, at the same time, the impurities and dust in the PVC particles are filtered into the inside of the scum blocking frame 18 through the separation filter screen 19, a plurality of inclined sheets are arranged in the inside of the scum blocking frame 18, the dust and impurities are guided downwards through the scum blocking frame 18, the PVC particles discharged from the paddle dryer 11 are filtered, the purity of the PVC particles is ensured, and the product quality is improved.

[0036] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A polyvinyl chloride drying apparatus comprising a paddle dryer (11), an upper end cover (12), and a discharge box (13), characterized in that, The bottom end of the discharge box (13) is provided with a filtering assembly, the filtering assembly comprises a indexable bracket (14), a flow blocking block (17), a scum blocking frame (18) and a separation filter screen (19), the scum blocking frame (18) and the separation filter screen (19) are horizontally installed inside the indexable bracket (14), a plurality of inclined leaf plates are installed inside the separation filter screen (19), and both ends of the indexable bracket (14) are rotationally connected with the discharge box (13).

2. A polyvinyl chloride drying apparatus as claimed in claim 1, wherein, The bottom end of the indexable bracket (14) is provided with an adjusting assembly, the adjusting assembly comprises a docking base (15) and a power swing arm rod (16), and the top end of the power swing arm rod (16) is rotationally connected with the docking base (15).

3. A polyvinyl chloride drying apparatus as claimed in claim 1, wherein, The bottom end of the paddle dryer (11) is fixedly installed with two rotating discs (22) for supporting, and the same transmission support seat (21) connected with the power swing arm rod (16) is rotationally installed inside the two rotating discs (22).

4. A polyvinyl chloride drying apparatus as claimed in claim 2, wherein, The end of the power swing arm rod (16) is connected with the transmission support seat (21) through a connecting shaft, and the end of the power swing arm rod (16) is fixed outside the transmission support seat (21).

5. A polyvinyl chloride drying apparatus as claimed in claim 3, wherein, The inside of the rotating disc (22) is provided with a transmission rod, and the end of the transmission rod is connected with the motor of the paddle dryer (11).

6. A polyvinyl chloride drying apparatus as claimed in claim 1, wherein, The inside of the paddle dryer (11) is installed with a rotating paddle, and the top end of the upper end cover (12) is installed with a feeding port.

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