Efficient energy-saving heat drying and screening machine for color master batches

Abstract

The utility model discloses an efficient energy-saving color master batch heat drying and sieving machine which comprises a drying box, a sieve plate, a scraping plate, a heating plate, a fan, a waste eduction tube, a valve block, a first material guide plate and a second material guide plate, a cover plate is arranged at the top of the drying box, a hopper is arranged on the cover plate, the sieve plate is arranged in the drying box, and the scraping plate is arranged on the sieve plate. The first material guide plate is obliquely arranged below the sieve plate, the second material guide plate is obliquely arranged below the first material guide plate, the heating plates are arranged on the bottom face of the first material guide plate and the bottom face of the second material guide plate respectively, and a waste opening located in the edge of the top face of the sieve plate is formed in one side of the drying box. The waste eduction tube is horizontally arranged on the outer side of the drying box and communicates with the waste opening, and the valve block is arranged in the waste eduction tube. The high-efficiency and energy-saving heat drying and screening machine for the color master batches can dry and screen the color master batches, and improves the efficiency and the energy-saving property.

Description

Technical Field

[0001] The utility model relates to the field of masterbatch screening equipment, in particular to a high-efficiency and energy-saving heat-drying screening machine for masterbatch. Background Art

[0002] Masterbatches are typically produced by extruding plastic strips, cooling them with water, and then cutting them into pellets using a pelletizer. To remove residual moisture from the masterbatch surface, they are typically dried with a blower, which is relatively inefficient.

[0003] Prior art, utility model patent application number 2021216253778 discloses an energy-saving and environmentally friendly hot-drying masterbatch sieving machine. While this machine uses hot air to dry masterbatch, it is highly efficient. However, the hot air drying process requires a long time, resulting in high energy consumption. Furthermore, large particles trapped on the screen cannot be automatically removed, requiring the machine to be shut down to open the cover for cleaning, resulting in low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency and energy-saving thermal drying and screening machine for masterbatch, which can realize the drying and screening of masterbatch and improve efficiency and energy saving.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A high-efficiency and energy-saving thermal drying and screening machine for masterbatch, comprising: a drying box, a sieve plate, a scraper, a heating plate, a fan, a waste material outlet pipe, a valve block, a first material guide plate and a second material guide plate, a cover plate is provided on the top of the drying box, a hopper is provided on the cover plate, the sieve plate is arranged in the drying box, a rotary drive mechanism is provided on the cover plate, a rotating shaft extending to the top of the sieve plate is provided at the bottom of the rotary drive mechanism, a fixed sleeve is provided on the rotating shaft, the scraper annular array is provided on the fixed sleeve, the first material guide plate is obliquely arranged below the sieve plate, and the left end of the first material guide plate contacts the inner wall of the drying box, the right end of the first material guide plate extends obliquely downward and leaves a first discharge port between the inner wall of the drying box, the second material guide plate is obliquely arranged below the first guide plate, and the second The right end of the guide plate contacts the inner wall of the drying box, and the left end of the second guide plate extends obliquely downward and leaves a second discharge port between the inner wall of the drying box. The side wall of the drying box is provided with a first pipe located below the second discharge port and connected to the air outlet end of the fan, and the side wall of the drying box is provided with a second pipe located above the sieve plate and connected to the air inlet end of the fan. The heating plates are respectively arranged on the bottom surfaces of the first guide plate and the second guide plate, and a waste port is provided on one side of the drying box at the edge of the top surface of the sieve plate. The waste outlet pipe is horizontally arranged on the outside of the drying box and connected to the waste port. The valve block is arranged in the waste outlet pipe, and the outer end of the waste outlet pipe is provided with a transverse driving mechanism connected to the valve block, and a drop port is provided at the bottom of the waste outlet pipe.

[0007] Wherein, a discharge valve is provided at the bottom of the drying box.

[0008] Wherein, the rotation drive mechanism adopts a motor.

[0009] Wherein, the heating plate is an electric heating plate.

[0010] Wherein, the transverse driving mechanism adopts a cylinder or an electric telescopic rod.

[0011] Wherein, a bracket located below the drop port is provided on one side of the drying box, and a waste box is provided on the bracket.

[0012] The beneficial effects of the utility model are as follows: a high-efficiency and energy-saving heat drying sieving machine for masterbatch, which pushes the masterbatch on the sieve plate to perform centrifugal motion through the rotation of the scraper on the sieve plate. During the centrifugal motion, the qualified masterbatch is discharged through the sieve holes on the sieve plate to the first guide plate to complete the screening. The large particles of masterbatch are retained at the edge of the sieve plate and continue to perform centrifugal motion. The valve block is driven outward by the transverse drive mechanism so that the large particles of masterbatch can enter the waste outlet pipe and finally flow into the waste box through the drop port for automatic cleaning. There is no need to open the cover plate, which improves the production efficiency. A curved flow channel is formed by the first guide plate and the second guide plate to extend the downward flow path of the masterbatch. An air flow is introduced into the curved flow channel by a fan to perform wind drying of the masterbatch, thereby improving the drying efficiency and reducing the energy consumption. The heating plate is used to heat the air flow in the first guide plate, the second guide plate and the curved flow channel, thereby further improving the drying effect. Moreover, the first guide plate and the second guide plate can directly transfer heat to the masterbatch passing through their surface, thereby accelerating the evaporation of surface moisture during the downward rolling of the masterbatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure in which the valve block moves outward to open the blanking port. DETAILED DESCRIPTION

[0015] The following combination Figures 1 to 2 The technical solution of the present utility model is further illustrated by specific embodiments.

[0016] like Figure 1 and Figure 2 The masterbatch high-efficiency and energy-saving thermal drying and screening machine shown includes: a drying box 1, a screen plate 2, a scraper 3, a heating plate 9, a fan 7, a waste material outlet pipe 13, a valve block 12, a first guide plate 8 and a second guide plate 15. A cover plate 4 is provided on the top of the drying box 1, which is fixed with screws, has a firm structure, and is easy to disassemble and assemble.

[0017] A hopper 6 is provided on the cover plate 4. The sieve plate 2 is horizontally arranged in the drying box 1. The masterbatch in the hopper 6 falls onto the sieve plate 2 for automatic screening. A rotary drive mechanism 5 is provided on the cover plate 4. A rotating shaft extending above the sieve plate 2 is provided at the bottom of the rotary drive mechanism 5. A fixed sleeve 22 is provided on the rotating shaft. In this embodiment, the rotary drive mechanism 5 uses a motor to drive the rotation of the fixed sleeve 22.

[0018] The scraper 3 is arranged in a circular array on the fixed sleeve 22, as shown in FIG. Figure 1 As shown, the scraper 3 is perpendicular to the sieve plate 2, and the gap is very small. The scraper 3 rotates on the sieve plate 2, pushing the masterbatch on the sieve plate 2 to perform centrifugal motion. During the centrifugal motion, the qualified masterbatch is discharged through the sieve holes on the sieve plate 2 to the first guide plate 8, completing the screening with high efficiency. The large particles of masterbatch are retained at the edge of the sieve plate 2 and continue to perform centrifugal motion.

[0019] like Figure 2 As shown, a waste outlet 23 is provided on one side of the drying box 1 at the top edge of the sieve plate 2, the waste outlet pipe 13 is horizontally arranged outside the drying box 1 and connected to the waste outlet, and the valve block 12 is arranged in the waste outlet pipe 13 to seal the waste outlet 23.

[0020] A transverse movement drive mechanism 14 connected to the valve block 12 is provided at the outer end of the waste outlet pipe 13. In this embodiment, the transverse movement drive mechanism 14 adopts a cylinder or an electric telescopic rod, which can be telescopically controlled by PLC to realize the transverse movement of the valve block 12.

[0021] A discharge port 18 is provided at the bottom of the waste outlet pipe 13. A bracket 17 is provided on one side of the drying box 1, located below the discharge port 18. A waste box 19 is mounted on the bracket 17. The valve block 12 is driven outward by the transverse drive mechanism 14, allowing large masterbatch particles to enter the waste outlet pipe 13 and ultimately flow through the discharge port 18 into the waste box 19 for automatic cleaning, eliminating the need to open the cover plate 4 and improving production efficiency. Furthermore, a discharge valve 16 is provided at the bottom of the drying box 1. Qualified masterbatch particles accumulate at the bottom of the drying box 1 and can be discharged by opening the discharge valve 16.

[0022] like Figure 1As shown, the first guide plate 8 is obliquely placed below the sieve plate 2, and the left end of the first guide plate 8 is in contact with the inner wall of the drying box 1, the right end of the first guide plate 8 extends obliquely downward and a first discharge opening 20 is left between the inner wall of the drying box 1, and the second guide plate 15 is obliquely placed below the first guide plate 8, and the right end of the second guide plate 15 is in contact with the inner wall of the drying box 1, the left end of the second guide plate 15 extends obliquely downward and a second discharge opening 21 is left between the inner wall of the drying box 1. A curved flow channel is formed by the first guide plate 8 and the second guide plate 15, which can extend the downward flow path of the masterbatch, which is beneficial to improving the effect of air drying and reducing energy consumption.

[0023] A first pipe 10 is provided on the side wall of the drying box 1, located below the second discharge port 21 and connected to the air outlet of the fan 7. A second pipe 11 is provided on the side wall of the drying box 1, located above the sieve plate 2 and connected to the air inlet of the fan 7. The fan 7 introduces air into the curved flow channel to dry the masterbatch by air, improving drying efficiency and energy conservation. In addition, a steam-water separator can be connected in series with the second pipe 11 to remove water from the airflow.

[0024] The heating plates 9 are positioned on the undersides of the first and second guide plates 8, 15, respectively. In this embodiment, the heating plates 9 are electrically controlled and automatically controlled by a temperature switch. These plates heat the first and second guide plates 8, 15, and the airflow within the curved flow channel, further enhancing the drying effect. Furthermore, the first and second guide plates 8, 15 transfer heat directly to the masterbatch passing over their surfaces, accelerating the evaporation of surface moisture as the masterbatch rolls downward.

[0025] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A high-efficiency and energy-saving heat drying and screening machine for masterbatch, characterized in that: include: A drying box, a sieve plate, a scraper, a heating plate, a fan, a waste material outlet pipe, a valve block, a first material guide plate and a second material guide plate. A cover plate is provided on the top of the drying box, a hopper is provided on the cover plate, the sieve plate is arranged in the drying box, a rotary drive mechanism is provided on the cover plate, a rotating shaft extending to the top of the sieve plate is provided at the bottom of the rotary drive mechanism, a fixed sleeve is provided on the rotating shaft, the scraper annular array is provided on the fixed sleeve, the first material guide plate is obliquely arranged below the sieve plate, and the left end of the first material guide plate is in contact with the inner wall of the drying box, the right end of the first material guide plate extends obliquely downward and a first material discharge port is left between the inner wall of the drying box, the second material guide plate is obliquely arranged below the first material guide plate, and the right end of the second material guide plate is in contact with the drying box The sieve plate is in contact with the inner wall, the left end of the second material guide plate extends obliquely downward and a second discharge port is left between the inner wall of the drying box, the side wall of the drying box is provided with a first pipe located below the second discharge port and connected to the air outlet end of the fan, the side wall of the drying box is provided with a second pipe located above the sieve plate and connected to the air inlet end of the fan, the heating plates are respectively arranged on the bottom surfaces of the first material guide plate and the second material guide plate, a waste port is provided on one side of the drying box at the edge of the top surface of the sieve plate, the waste outlet pipe is horizontally arranged on the outside of the drying box and connected to the waste port, the valve block is arranged in the waste outlet pipe, the outer end of the waste outlet pipe is provided with a transverse driving mechanism connected to the valve block, and a drop port is provided at the bottom of the waste outlet pipe.

2. The high-efficiency and energy-saving heat drying sieving machine for masterbatch according to claim 1 is characterized in that: A discharge valve is provided at the bottom of the drying box.

3. The high-efficiency and energy-saving heat drying sieving machine for masterbatch according to claim 1, characterized in that: The rotary drive mechanism adopts a motor.

4. The high-efficiency and energy-saving heat drying sieving machine for masterbatch according to claim 1, characterized in that: The heating plate is an electric heating plate.

5. The high-efficiency and energy-saving heat drying sieving machine for masterbatch according to claim 1, characterized in that: The transverse driving mechanism adopts a cylinder or an electric telescopic rod.

6. The high-efficiency and energy-saving heat drying sieving machine for masterbatch according to claim 1, characterized in that: A bracket located below the material drop opening is provided on one side of the drying box, and a waste box is provided on the bracket.

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