Drying device for PVC auxiliary agent production

Abstract

The utility model discloses a drying device for PVC auxiliary agent production. A rotating shaft is rotationally arranged in the middle of a shell, a plurality of bearing discs are installed on the rotating shaft, strip-shaped rib plates are arranged on the rotating shaft, sliding grooves matched with the strip-shaped rib plates are formed in the bearing discs, and the rotating shaft drives the bearing discs to rotate and drives the bearing discs to rotate at the same time. The bearing disc slides in the axis direction of the rotating shaft. Wedge-shaped blocks with the two ends different in thickness are arranged at the bottom of the bearing disc in pairs, first rolling wheels matched with the lower surfaces of the wedge-shaped blocks are arranged on the inner wall of the shell, and a bearing seat is fixed to the position, located on the lower surface of the bearing disc, of the rotating shaft and used for supporting the bearing disc. According to the PVC assistant drying device, PVC assistants can be prevented from being adhered and stacked on the carrying disc, the PVC assistants can be flattened and turned over, and the drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of drying device for PVC additive production, belong to drying device for PVC additive production technical field. BACKGROUND

[0002] PVC was the world's largest general-purpose plastic, application is very extensive, in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipe, wire and cable, packaging film, bottle, foamed material, sealing material, fiber and so on are widely used, PVC is white powder of amorphous structure, branching degree is small, relative density 1.4 or so, glass transition temperature 77~90 ℃, 170 ℃ or so begins to decompose, the stability to light and heat is poor, at 100 ℃ or above or after long time sunlight exposure, will decompose and further autocatalytic decomposition, cause discoloration, physical mechanical properties also rapidly drop, must add additive in practical application, PVC additive needs drying step in manufacturing, the existing PVC plastic additive production drying device is not sufficient to material drying.

[0003] The Chinese invention patent with announcement number CN106352690A discloses a rotatable drying PVC processing additive drying machine, through the cooperation of fuel, combustion furnace and air pump, the effect that heat is generated by the combustion of fuel in the combustion furnace is achieved, and the heat is transmitted to the inside of the machine body through the air pump, and then through the cooperation of motor, gear, toothed disc and roller, the effect that the raw materials are dispersed by the rotation of the drying box in the drying process is achieved, so that the raw materials are evenly heated and dried.

[0004] However, the above patent has the following defects in actual application:

[0005] First, the PVC additive is placed in the drying box and rotates, but the PVC additives are mutually adhered and stacked together, which is not conducive to the volatilization of water in the PVC additive;

[0006] Second, placing the PVC additive at the bottom of the drying box will cause uneven accumulation of the PVC additive on the carrier disc, with no PVC additive in some places and a large amount of accumulation in other places, which is not conducive to water drying.

[0007] As can be seen from the above, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. UTILITY MODEL CONTENTS

[0008] The utility model in the prior art provides a kind of drying device for PVC additive production, can prevent PVC additive from mutually adhering and stacking on carrier disc, also can flatten and turn over PVC additive, improve drying efficiency.

[0009] To solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A PVC additive production drying device, the middle position of the shell is rotatably provided with a rotating shaft, a plurality of bearing discs are installed on the rotating shaft, a strip-shaped rib plate is arranged on the rotating shaft, a sliding groove matched with the strip-shaped rib plate is arranged on the bearing disc, and the bearing disc slides along the axis of the rotating shaft while being driven to rotate by the rotating shaft.

[0011] The bottom of the bearing disc is provided with wedge-shaped blocks with different thicknesses at two ends, and the inner wall of the shell is provided with first rollers matched with the lower surfaces of the wedge-shaped blocks.

[0012] Further, the bearing seat is fixed at the position of the rotating shaft below the lower surface of the bearing disc to support the bearing disc.

[0013] Further, a gas pipe is arranged on the upper surface of the bearing disc, the gas pipe is arranged horizontally, and a plurality of nozzles are arranged on the lower side of the gas pipe in the axial direction.

[0014] Further, a material spreading mechanism is arranged on the upper side of the bearing disc, the material spreading mechanism comprises a baffle arranged to slide up and down along with the bearing disc.

[0015] Further, the material spreading mechanism further comprises a fixed plate, the two ends of the baffle are vertically fixed with sliding arms, and the lower ends of the sliding arms are provided with second rollers.

[0016] The central hole of the bearing disc is provided with an annular inner boss, the outer ring of the bearing disc is provided with an annular outer boss, and the second rollers at the lower ends of the two sliding arms are matched with the upper surfaces of the inner boss and the outer boss, respectively.

[0017] Further, a plurality of rake teeth are arranged on the lower side of the baffle in the length direction of the baffle.

[0018] Further, the shell is provided with an air outlet pipe.

[0019] After the above technical scheme is adopted, compared with the prior art, the utility model has the following advantages:

[0020] 1. The bearing seat is fixed at the position of the rotating shaft below the lower surface of the bearing disc, when the wedge-shaped blocks at the lower end of the bearing disc are rotated to the first rollers, the wedge-shaped blocks support the bearing disc, when the wedge-shaped blocks of the bearing disc are rotated away from the first rollers, the bearing disc rapidly falls onto the bearing seat, so that the PVC additive on the bearing disc can be loosened by shaking, and the PVC additive on the bearing disc is prevented from adhering to each other to affect the drying effect.

[0021] 2. The upper side of the bearing disc is also provided with a material spreading mechanism corresponding, the material spreading mechanism comprises a baffle plate slidingly arranged on the bearing disc, a box door is arranged on the side of the shell, when drying, the PVC additive is placed on the bearing disc, when the bearing disc is rotated, the baffle plate spreads the PVC additive on the bearing disc.

[0022] The utility model will be described in detail below in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the internal structure schematic diagram of the utility model;

[0024] Figure 2 It is the structure schematic diagram of bearing disc installation on the structure of the shaft from another angle;

[0025] Figure 3 It is the structure schematic diagram of bearing disc installation on the structure of the shaft from another angle;

[0026] Figure 4 It is the structure schematic diagram of the material spreading mechanism in the utility model.

[0027] In the drawings,

[0028] 1-shell, 2-rotating shaft, 201-bar-shaped rib plate, 202-bearing seat, 3-driving motor, 4-air pipe, 5-sprayer, 6-bearing disc, 601-inner boss, 602-outer boss, 7-wedge block, 8-first roller, 9-fixed plate, 10-sliding arm, 11-second roller, 12-baffle plate, 13-rake tooth, 14-outlet pipe. DETAILED DESCRIPTION

[0029] In order to have more clear understanding on the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be explained by referring to the drawings.

[0030] As Figures 1-4 shown, the utility model provides a kind of drying device for PVC additive production, including shell 1, rotating shaft 2 is rotationally arranged in the middle position of shell 1, rotating shaft 2 is installed with multiple bearing discs 6, the rotating shaft 2 is driven by driving motor 3, rotating shaft 2 drives bearing disc 6 to rotate, rotating shaft 2 is equipped with bar-shaped rib plate 201, bearing disc 6 is equipped with the sliding groove that is matched with the bar-shaped rib plate 201, while rotating shaft 2 drives bearing disc 6 to rotate, bearing disc 6 can slide along the axis direction of rotating shaft 2.

[0031] The bottom of bearing disc 6 is equipped with wedge block 7 of different thicknesses in pair (as Figure 3 shown), the first roller 8 that is matched with the lower surface of the wedge block 7 is equipped on the inner wall of shell 1.

[0032] The rotating shaft 2 is fixed with a support seat 202 at the lower surface of the support plate 6. When the wedge block 7 at the lower end of the support plate 6 rotates to the first roller 8, the wedge block 7 lifts the support plate 6. When the wedge block 7 moves away from the first roller 8, the support plate 6 quickly falls onto the support seat 202, so that the PVC additives on the support plate 6 can be loosened by the bumps, thus preventing the PVC additives from adhering to each other on the support plate 6 and affecting the drying effect.

[0033] The upper surface of the bearing plate 6 is provided with an air pipe 4. The air pipe 4 is horizontally arranged, and multiple nozzles 5 are arranged axially on the lower side of the air pipe 4. The air pipe 4 is filled with high-temperature and high-pressure gas. During the process of the bearing plate 6, the nozzles 5 on its upper side spray out high-speed airflow to dry the PVC additives and accelerate the drying of the PVC additives.

[0034] The upper side of the bearing plate 6 is also provided with a material spreading mechanism, which includes a baffle 12 that slides up and down with the bearing plate 6.

[0035] A door is provided on the side of the housing 1. During drying, PVC additives are placed on the support tray 6. When the support tray 6 is rotated, the baffle 12 flattens the PVC additives on the support tray 6.

[0036] The material spreading mechanism also includes a fixed plate 9. Sliding arms 10 are vertically fixed at both ends of the baffle 12. The lower end of the sliding arm 10 is provided with a second roller 11. The center hole of the bearing plate 6 is provided with an annular inner boss 601. The outer ring of the bearing plate 6 is provided with an annular outer boss 602. The second rollers 11 at the lower ends of the two sliding arms 10 respectively cooperate with the upper surfaces of the inner boss 601 and the outer boss 602. When the bearing plate 6 slides upward, it can push the baffle 12 to slide upward.

[0037] The lower side of the baffle 12 is provided with a plurality of rake teeth 13 arranged along its length. When the bearing plate 6 rotates, the rake teeth 13 turn the PVC additives on the bearing plate 6 over, further accelerating the drying of the PVC additives.

[0038] The housing 1 is provided with an exhaust pipe 14, through which gas inside the housing 1 is discharged.

[0039] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A drying device for PVC aid production, characterized in that: The middle position of the shell (1) is rotatably provided with a rotating shaft (2), a plurality of bearing discs (6) are installed on the rotating shaft (2), a strip-shaped rib plate (201) is arranged on the rotating shaft (2), a sliding groove is arranged on the bearing disc (6) and matched with the strip-shaped rib plate (201), and the rotating shaft (2) drives the bearing disc (6) to rotate while the bearing disc (6) slides along the axis direction of the rotating shaft (2). The bottom of the bearing disc (6) is provided with a pair of wedge-shaped blocks (7) with different thicknesses, and the inner wall of the shell (1) is provided with a first roller (8) matched with the lower surface of the wedge-shaped block (7).

2. The drying device for PVC additive production according to claim 1, characterized in that: The rotating shaft (2) is fixed with a bearing seat (202) at the position below the bearing disc (6) to support the bearing disc (6).

3. The drying device for PVC additive production according to claim 1, characterized in that: The upper surface of the bearing disc (6) is correspondingly provided with an air pipe (4), the air pipe (4) is arranged horizontally, and a plurality of nozzles (5) are arranged on the lower side of the air pipe (4) in the axial direction.

4. The drying device for PVC additive production according to claim 1, characterized in that: The upper side of the bearing disc (6) is also correspondingly provided with a material spreading mechanism, the material spreading mechanism comprises a baffle (12) arranged to slide up and down with the bearing disc (6).

5. The drying device for PVC additive production according to claim 4, characterized in that: The material spreading mechanism further comprises a fixed plate (9), the both ends of the baffle (12) are vertically fixed with a sliding arm (10), and the lower end of the sliding arm (10) is provided with a second roller (11). The center hole of the bearing disc (6) is provided with an annular inner boss (601), the outer ring of the bearing disc (6) is provided with an annular outer boss (602), and the second rollers (11) at the lower ends of the two sliding arms (10) are matched with the upper surfaces of the inner boss (601) and the outer boss (602) respectively.

6. The drying device for PVC additive production according to claim 5, characterized in that: A plurality of rake teeth (13) are arranged on the lower side of the baffle (12) in the length direction.

7. The drying device for PVC additive production of claim 3, characterized in that: The shell (1) is provided with an air outlet pipe (14).

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