Drying device for flame-retardant particle production

Abstract

The utility model discloses a drying device for flame-retardant particle production, which belongs to the technical field of flame-retardant particle drying and comprises a metal support and a drying tank which is fixed on the metal support and used for drying flame-retardant particles, and a partition plate is fixed in the middle of the drying tank close to an outlet end. A particle discharging hopper and a dust discharging hopper are symmetrically arranged at the outlet end of the drying tank relative to the partition plate and fixed to the metal support. The drying tank is communicated and connected with an air inlet for inputting hot air for drying the flame-retardant particles, and a sorting mechanism for screening dust and defective small particles mixed in the flame-retardant particles is arranged in the drying tank; according to the drying device, powder and defective small particles mixed in flame-retardant particles can be sorted out while drying processing is conducted, and the drying processing quality of the flame-retardant particles is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardant particle drying, in particular to a drying device for producing flame retardant particles. Background Art

[0002] The purpose of the flame retardant pellet drying process is to remove moisture from the pellets to ensure the performance of the flame retardant and the smooth progress of the processing. During the drying process, it is necessary to ensure that the pellets are heated evenly during the drying process to avoid local overheating or the generation of undried areas.

[0003] For example, the patent with publication number CN218034188U discloses a drying device for producing flame-retardant polypropylene particles, including a box body, legs are arranged at the four corners of the lower end face of the box body, a rotating shaft is arranged inside the box body, a stirring rod is arranged on the rotating shaft, and a plurality of stirring rods are arranged. The rotating shaft extends to the right and passes through the box body, a rotating motor is connected to the right end of the rotating shaft, a detachable mounting plate is arranged at the left end of the box body, a shaft sleeve is arranged on the right end face of the mounting plate corresponding to the rotating shaft, a screen barrel is arranged inside the box body, a first limiting ring is arranged on the inner wall of the right end of the box body corresponding to the screen barrel, a second limiting ring is arranged on the right end face of the mounting plate corresponding to the screen barrel, a feed pipe and a discharge pipe are respectively passed through the upper and lower sides of the left end face of the mounting plate, and the feed pipe and the discharge pipe are arranged on the inner side of the second limiting ring ; The design of the mounting plate facilitates internal maintenance; the design of the hot air box improves drying efficiency; the design of the dust removal box facilitates dust removal; during the drying process, some flame retardant particles are affected by stirring and impact, and some powder will fall off the surface of the particles at the separation point, and the surface defects of some particles will become smaller, resulting in some powder and defective small particles mixed in the dried flame retardant particles. Some existing drying devices are not convenient for separating these substances during the processing process, affecting the overall product quality. In addition, some powder adheres to the surface of the flame retardant particles, and the flame retardant particles are piled up on each other. It is difficult to quickly control the separation between the powder and the flame retardant particles by centrifugation, which is not conducive to rapid drying and production of qualified and high-quality flame retardant particles.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original flame retardant particle drying device. Utility Model Content

[0005] The utility model aims to provide a drying device for the production of flame-retardant particles, so as to solve the problem in the above-mentioned background technology that some flame-retardant particles are affected by stirring and impact during the drying process, and some powder will fall off the surface of the particles and the surface defects of some particles will become smaller, resulting in some powder and defective small particles mixed in the dried flame-retardant particles. Some existing drying devices are not convenient for separating this part of the material during the processing, which affects the overall product quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying device for producing flame-retardant particles, comprising a metal bracket and a drying tank fixed on the metal bracket for drying the flame-retardant particles, a partition is fixed in the center of the drying tank near the outlet end, a particle discharge hopper and a dust discharge hopper are symmetrically arranged at the outlet end of the drying tank about the partition, and the particle discharge hopper and the dust discharge hopper are fixed on the metal bracket; an air inlet for inputting hot air for drying the flame-retardant particles is connected through the drying tank, and a sorting mechanism for screening dust and defective small particles mixed in the flame-retardant particles is arranged in the drying tank.

[0007] Preferably, a heat conducting plate is fixedly mounted on the inner wall of the drying tank, and a plurality of heating wires are fixed at equal angles along the circumferential direction on the outside of the heat conducting plate.

[0008] Preferably, the sorting mechanism comprises a disc fixedly installed in the drying tank, a screen frame is embedded and installed on one side of the disc, and a discharge pipe is installed through the other side of the disc.

[0009] Preferably, the disc is fixedly mounted on the upper surface of the partition, and the partition is located between the screen frame and the discharge pipe.

[0010] Preferably, a motor is fixedly mounted on the partition, a rotating rod is connected to the output end of the motor, and the rotating rod is rotatably mounted on the disc; a plurality of paddles are fixed at equal angles on the outside of the rotating rod.

[0011] Preferably, the lower surface of the paddle is in contact with the upper surface of the disc, and the paddle is made of elastically deformable material; a plurality of limit blocks are fixed at equal angles on the inner wall of the drying tank, and the paddle rotates in a circle and contacts with the limit blocks to deform and vibrate.

[0012] Preferably, a transverse support rod is fixedly connected to the paddle, and a plurality of longitudinal support rods are vertically fixed on the transverse support rod at equal intervals.

[0013] Compared with the prior art, the utility model has the beneficial effect that the drying device for producing flame retardant particles can separate powder and unqualified small particles mixed in the flame retardant particles during the drying process, thereby improving the quality of the dried flame retardant particles.

[0014] Furthermore, a sorting mechanism for screening dust and defective small particles mixed in the flame retardant particles is provided in the drying tank. The flame retardant particles entering the drying tank are separated above the disc. During the drying process of the flame retardant particles, the mixed powder and defective small particles inside the flame retardant particles pass through the screen frame and enter one side below the drying tank, and qualified flame retardant particles enter the other side below the drying tank. The discharge of materials is controlled separately by the dust discharge hopper and the particle discharge hopper.

[0015] During the drying process, the motor is operated to control the rotation of the rotating rod, and the rotating rod drives the external paddle to rotate in a circle. During the rotation process, the paddle controls the flame retardant particles to rotate in a circle above the disc, thereby assisting in separating the flame retardant particles and powder, defective small particles, etc.

[0016] Furthermore, a plurality of limit blocks are fixed at equal angles on the inner wall of the drying tank. The paddle contacts different limit blocks during circular rotation, and the paddle is deformed and shakes. During the shaking process, the flame retardant particles on the side vibrate, thereby assisting the powder on the surface of the flame retardant particles to shake off, so as to accelerate the discharge of the powder and defective small particles from the screen frame.

[0017] The paddle drives the horizontal support rod and the vertical support rod to rotate and shake synchronously during the rotation and shaking process. The corresponding movement of the horizontal support rod and the vertical support rod inside the drying tank can accelerate the dispersion of the flame retardant particles, keep the flame retardant particles evenly dispersed, and thus improve the drying effect of the flame retardant particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the drying tank of the utility model.

[0019] Figure 2 It is a schematic cross-sectional view of a drying tank of the present utility model.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat conducting plate of the utility model.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the disc of the utility model.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the screen frame of the utility model.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the plectrum of the utility model.

[0024] In the figure: 1. Metal bracket; 2. Drying tank; 3. Partition; 4. Particle discharge hopper; 5. Dust discharge hopper; 6. Air inlet; 7. Heat conduction plate; 8. Heating wire; 9. Disc; 10. Screen rack; 11. Discharge pipe; 12. Motor; 13. Rotating rod; 14. Paddle; 15. Horizontal support rod; 16. Vertical support rod; 17. Limit block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figure 1-Figure 6 The utility model provides the following technical solutions: a drying device for producing flame retardant particles, comprising a metal support 1 and a drying tank 2 fixed on the metal support 1 for drying the flame retardant particles, a partition 3 is fixed in the center of the drying tank 2 near the outlet end, a particle discharge hopper 4 and a dust discharge hopper 5 are symmetrically arranged at the outlet end of the drying tank 2 about the partition 3, and the particle discharge hopper 4 and the dust discharge hopper 5 are fixed on the metal support 1; an air inlet 6 for inputting hot air for drying the flame retardant particles is connected through the drying tank 2, and a sorting mechanism for screening dust and defective small particles mixed in the flame retardant particles is arranged in the drying tank 2.

[0027] A heat conducting plate 7 is fixedly mounted on the inner wall of the drying tank 2 , and a plurality of heating wires 8 are fixed at equal angles along the circumferential direction on the outside of the heat conducting plate 7 .

[0028] The sorting mechanism comprises a disc 9 fixedly installed in the drying tank 2 , a screen frame 10 is embedded and installed on one side of the disc 9 , and a discharge pipe 11 is installed through the other side of the disc 9 .

[0029] The disc 9 is fixedly mounted on the upper surface of the partition 3, and the partition 3 is located between the screen frame 10 and the discharge pipe 11. A motor 12 is fixedly mounted on the partition 3, and a rotating rod 13 is connected to the output end of the motor 12. The rotating rod 13 is rotatably mounted on the disc 9; a plurality of paddles 14 are fixed at equal angles on the outside of the rotating rod 13.

[0030] The air inlet 6 is connected to the pipeline for transmitting hot air, and hot air is input into the drying tank 2 through the air inlet 6, so that the flame retardant particles are introduced into the drying tank 2, and the flame retardant particles are separated on the surface of the disc 9. The discharge pipe 11 is controlled to be in a closed state, and the operating motor 12 controls the rotation of the rotating rod 13. The rotating rod 13 drives the paddle 14 to rotate in a circle. When the paddle 14 is attached to the surface of the disc 9 and rotates, the flame retardant particles on the surface of the disc 9 are dispersed, so that during the rotation of the flame retardant particles, the mixed powder and defective small particles inside the flame retardant particles pass through the screen frame 10 and enter the bottom of the drying tank 2, and finally enter the dust discharge hopper 5.

[0031] The flame retardant particles are dried in the drying tank 2 by the heating effect of the incoming hot air, and at the same time, the heating wire 8 on the outer wall of the heat conducting plate 7 is started for heating. The heating wire 8 is circumferentially distributed between the heat conducting plate 7 and the drying tank 2, and generates heat and transfers the heat evenly to the inside of the drying tank 2, so that the flame retardant particles can be heated and dried evenly. The dried flame retardant particles enter the bottom of the drying tank 2 through the discharge pipe 11, and finally enter the inside of the particle discharge hopper 4.

[0032] Embodiment 2: Based on Embodiment 1, a shaking rotating rod 13 is further disclosed, and its specific structure is as follows: the lower surface of the paddle 14 is in contact with the upper surface of the disc 9, and the paddle 14 is made of an elastically deformable material; a plurality of limit blocks 17 are fixed at equal angles on the inner wall of the drying tank 2, and the paddle 14 rotates in a circle and contacts with the limit blocks 17 to deform and shake.

[0033] A transverse support rod 15 is fixedly connected to the paddle 14 , and a plurality of longitudinal support rods 16 are vertically fixed to the transverse support rod 15 at equal intervals.

[0034] When the rotating rod 13 drives the paddle 14 to rotate, the paddle 14 intermittently moves and contacts with the limit blocks 17 at different positions. When the paddle 14 contacts the side of the limit block 17, it deforms and shakes. The shaking paddle 14 can vibrate the surrounding flame retardant particles, accelerate the separation of the flame retardant particles from powder and defective small particles, and at the same time, the paddle 14 drives the horizontal support rod 15 and the longitudinal support rod 16 to vibrate synchronously during the shaking process. The horizontal support rod 15 and the longitudinal support rod 16 rotate and vibrate with the paddle 14, which can effectively rotate and separate the flame retardant particles, so that the flame retardant particles are evenly distributed inside the drying tank 2, thereby improving the drying processing effect of the flame retardant particles.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drying device for producing flame retardant particles, comprising a metal support (1) and a drying tank (2) fixed on the metal support (1) for drying the flame retardant particles, characterized in that: A partition (3) is fixed in the center of the drying tank (2) near the outlet end, and a particle discharge hopper (4) and a dust discharge hopper (5) are symmetrically arranged at the outlet end of the drying tank (2) with respect to the partition (3), and the particle discharge hopper (4) and the dust discharge hopper (5) are fixed on the metal bracket (1); The drying tank (2) is connected through an air inlet (6) for inputting hot air for drying the flame retardant particles, and a sorting mechanism for screening dust and defective small particles mixed in the flame retardant particles is provided in the drying tank (2).

2. A drying device for producing flame retardant particles according to claim 1, characterized in that: A heat conducting plate (7) is fixedly mounted on the inner wall of the drying tank (2), and a plurality of heating wires (8) are fixed at equal angles along the circumferential direction on the outside of the heat conducting plate (7).

3. A drying device for producing flame retardant particles according to claim 1, characterized in that: The sorting mechanism comprises a disc (9) fixedly mounted in the drying tank (2), a screen frame (10) being embedded and mounted on one side of the disc (9), and a discharge pipe (11) being installed through the other side of the disc (9).

4. A drying device for producing flame retardant particles according to claim 3, characterized in that: The disc (9) is fixedly mounted on the upper surface of the partition (3), and the partition (3) is located between the screen frame (10) and the discharge pipe (11).

5. A drying device for producing flame retardant particles according to claim 3, characterized in that: A motor (12) is fixedly mounted on the partition (3); an output end of the motor (12) is connected to a rotating rod (13); and the rotating rod (13) is rotatably mounted on the disc (9); A plurality of paddles (14) are fixed at equal angles on the outside of the rotating rod (13).

6. A drying device for producing flame retardant particles according to claim 5, characterized in that: The lower surface of the paddle (14) is in contact with the upper surface of the disc (9), and the paddle (14) is made of an elastically deformable material; A plurality of limit blocks (17) are fixed at equal angles on the inner side wall of the drying tank (2); the paddle (14) rotates in a circle and contacts the limit blocks (17), thereby deforming and vibrating.

7. A drying device for producing flame retardant particles according to claim 6, characterized in that: A transverse support rod (15) is fixedly connected to the paddle (14), and a plurality of longitudinal support rods (16) are vertically fixed at equal intervals on the transverse support rod (15).

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