Drying equipment for ABS plastic production

Abstract

The utility model discloses drying equipment for ABS (Acrylonitrile Butadiene Styrene) plastic production, which comprises a drying barrel, a drying barrel and a branch pipe, the lower part of the drying barrel is provided with an inclined pipe, the upper end of the inclined pipe is connected with a heater, the upper end of the heater is connected with a fan, the drying barrel is communicated with the fan, a drying agent net barrel is arranged in the drying barrel and is rotatably connected with the drying barrel, and the branch pipe is connected with the drying barrel. A partition plate is arranged in the drying agent net barrel, one half of the drying agent net barrel is communicated with the drying barrel, the branch pipe is connected between the inclined pipe and the drying barrel, the branch pipe is communicated with the other half of the drying agent net barrel, the draught fan and the heater feed hot air into the drying barrel to dry ABS plastic in the drying barrel, and humid and hot air exhausted from the drying barrel enters the drying barrel. When the humid and hot air passes through the drying agent net barrel, the drying agent adsorbs moisture of the humid and hot air, the humidity of the humid and hot air is reduced, hot air is generated, then the hot air returns to the fan, waste of heat energy is reduced, and the heat energy utilization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ABS plastic drying, in particular to a drying device for ABS plastic production. Background Technique

[0002] ABS plastic has strong hygroscopicity and sensitivity to moisture. If the moisture content of ABS plastic exceeds the allowable value, defects such as silver streaks, air bubbles, and shrinkage holes will appear on the surface of the product. Therefore, it is necessary to dry the ABS plastic.

[0003] In the related technology, through retrieval, it is found that in the solution of a hopper type dryer that is convenient for loading and unloading (publication number CN 220153213U), by setting a material dispersion component and a discharge component, the material dispersion component can continuously disperse the material, and with the cooperation of the discharge component, the plastic particles can be quickly discharged from the dryer body to the outside.

[0004] However, when the above-mentioned hopper type dryer is in use, the fan and heater are adapted to provide hot air for the hopper. After the hot air dries the ABS plastic, it becomes humid hot air and is discharged from the hopper. The humid hot air still contains heat energy. Although directly discharging the air can avoid the influence of the moisture in the humid hot air on the drying of ABS plastic, the utilization rate of heat energy is low, and a part of the heat energy will be wasted. Content of the Utility Model

[0005] The purpose of the utility model is to provide a drying device for ABS plastic production to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A drying device for ABS plastic production, including a drying barrel, an inclined pipe is installed at the lower part of the drying barrel, the upper end of the inclined pipe is connected to a heater, and the upper end of the heater is connected to a fan. The fan and the heater provide hot air for the drying barrel, which can dry the ABS plastic;

[0007] A drying barrel, which is installed on the side of the drying barrel and is communicated with the fan;

[0008] A desiccant mesh barrel is arranged inside the drying barrel, and the desiccant mesh barrel is rotationally connected to the drying barrel. A partition is arranged inside the desiccant mesh barrel, and half of the desiccant mesh barrel is communicated with the drying barrel;

[0009] A branch pipe is connected between the inclined pipe and the drying barrel, and the branch pipe is communicated with the other half of the desiccant mesh barrel;

[0010] The humid hot air discharged from the drying barrel is dehumidified by the desiccant mesh barrel and then flows back into the fan, which can realize internal circulation heating and improve the utilization efficiency of heat energy.

[0011] Furthermore, a motor is installed on the upper surface of the drying barrel, and a spiral blade is installed inside the drying barrel, which can turn the ABS plastic, making the drying of the ABS plastic more uniform.

[0012] Furthermore, a valve is installed on the branch pipe, which can dry the desiccant with hot air to realize the recycling of the desiccant.

[0013] Furthermore, a controller is installed on the upper surface of the heater. The controller adjusts the temperature of the heater and the rotation speed of the fan, and changes the corresponding temperature for different plastics.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1) The fan and the heater send hot air into the drying barrel to dry the ABS plastic inside the drying barrel. The humid hot air discharged from the drying barrel enters the drying barrel. When the humid hot air passes through the desiccant mesh barrel, the desiccant adsorbs the moisture in the humid hot air, reduces the humidity of the humid hot air to generate hot air, and then the hot air returns to the fan, reducing the waste of heat energy and improving the heat energy utilization efficiency.

[0016] (2) The inside of the desiccant mesh barrel is divided into two parts. A part of the hot air is extracted through the branch pipe to dry the desiccant in the desiccant mesh barrel, and the desiccant can be reused. Rotating the desiccant mesh barrel in the drying barrel can align the unabsorbed desiccant with the hose to realize the replacement use of the desiccant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0018] Figure 2 is a sectional view of the drying barrel of the present utility model;

[0019] Figure 3 is a sectional view of the drying barrel of the present utility model.

[0020] In the figure: 1, drying barrel; 2, drying barrel; 3, branch pipe; 4, valve; 5, inclined pipe; 6, heater; 7, controller; 8, hose; 9, fan; 10, motor; 11, desiccant mesh barrel; 12, partition board; 13, recovery pipe; 14, spiral blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-3 , the present utility model provides a technical solution: a drying device for ABS plastic production, including a drying barrel 1, a slant tube 5 is installed at the lower part of the drying barrel 1. The slant tube 5 can prevent ABS plastic from entering the heater 6 and avoid overheating of the ABS plastic. The upper end of the slant tube 5 is connected to the heater 6, and the upper end of the heater 6 is connected to a blower 9;

[0024] A drying barrel 2 is installed on the side of the drying barrel 1. The drying barrel 2 is communicated with the blower 9 to recover the humid and hot air discharged from the drying barrel 1;

[0025] A desiccant mesh barrel 11 is arranged inside the drying barrel 2, and the desiccant mesh barrel 11 is rotatably connected to the drying barrel 2. A partition 12 is arranged inside the desiccant mesh barrel 11. Half of the desiccant mesh barrel 11 is communicated with the drying barrel 1. The desiccant mesh barrel 11 stores granular desiccant, and the desiccant is divided into two parts, which can realize the replacement use of the desiccant;

[0026] A branch pipe 3 is connected between the slant tube 5 and the drying barrel 2. The branch pipe 3 is communicated with the other half of the desiccant mesh barrel 11, and can blow dry the moisture-absorbed desiccant, and the desiccant can be reserved for use.

[0027] In this embodiment, as Figure 3 shown, a motor 10 is installed on the upper surface of the drying barrel 1, and a spiral blade 14 is installed inside the drying barrel 1. The motor 10 drives the spiral blade 14 to rotate, which can stir and turn the ABS plastic to achieve uniform drying of the ABS plastic.

[0028] In this embodiment, as Figure 1 shown, a hose 8 is installed between the drying barrel 1 and the drying barrel 2. The hose 8 can be bent to facilitate opening the lid of the drying barrel 1. The drying barrel 1 is provided with a feeding hopper for convenient addition of ABS plastic.

[0029] In this embodiment, as Figure 1 shown, a valve 4 is installed on the branch pipe 3. Turning the valve 4 can make hot air enter the drying barrel 2 to dehumidify the desiccant in the desiccant mesh barrel 11, and closing the valve 4 can avoid unnecessary waste of hot air.

[0030] In this embodiment, as Figure 1 shown, a controller 7 is installed on the upper surface of the heater 6. The controller 7 adjusts the temperature of the heater 6 and the rotation speed of the fan, and can make adjustments or changes according to requirements to adapt to the drying temperature of the plastic and flexibly dry the plastic.

[0031] In this embodiment, asFigure 1 As shown, a recovery pipe 13 is installed at the lower part of the drying barrel 2. The recovery pipe 13 is communicated with the air inlet of the blower 9, and the hot air dehumidified by the desiccant can be reused by the blower 9.

[0032] Specifically, during use, the ABS plastic is put into the drying barrel 1. The blower 9 and the heater 6 are started to send hot air into the drying barrel 1 to dry the ABS plastic in the drying barrel 1. The humid and hot air discharged from the drying barrel 1 enters the drying barrel 2 through the hose 8. When the humid and hot air passes through the desiccant in the desiccant mesh barrel 11, the desiccant absorbs the moisture in the humid and hot air and restores the humid and hot air to hot air. The hot air flows back to the blower 9 from the recovery pipe 13, and the waste heat of the air is reused, which can save energy consumption.

[0033] When the desiccant can no longer dehumidify the humid and hot air, the cover of the drying barrel 2 is opened, and the desiccant mesh barrel 11 is rotated to align the other half of the desiccant in the desiccant mesh barrel 11 that can dehumidify with the hose 8, so as to continue to dehumidify the humid and hot air. After the valve 4 is opened, the hot air heats the desiccant that cannot be dehumidified through the branch pipe 3, so that the desiccant restores the dehumidifying ability.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for ABS plastic production, characterized in that Including: A drying barrel (1), a slant pipe (5) is installed at the lower part of the drying barrel (1), the upper end of the slant pipe (5) is connected to a heater (6), and the upper end of the heater (6) is connected to a blower (9); A drying drum (2), the drying drum (2) is installed on the side of the drying barrel (1), and the drying drum (2) is communicated with the blower (9); Inside the drying drum (2), a desiccant mesh barrel (11) is provided, and the desiccant mesh barrel (11) is rotatably connected to the drying drum (2), a partition (12) is provided inside the desiccant mesh barrel (11), and half of the desiccant mesh barrel (11) is communicated with the drying barrel (1); A branch pipe (3), the branch pipe (3) is connected between the slant pipe (5) and the drying drum (2), and the branch pipe (3) is communicated with the other half of the desiccant mesh barrel (11).

2. The drying equipment for ABS plastic production according to claim 1, characterized in that: A motor (10) is installed on the upper surface of the drying barrel (1), and a spiral blade (14) is installed inside the drying barrel (1).

3. The drying equipment for ABS plastic production according to claim 1, characterized in that: A hose (8) is installed between the drying barrel (1) and the drying drum (2).

4. A drying device for ABS plastic production according to claim 1, characterized in that: A valve (4) is installed on the branch pipe (3).

5. A drying device for ABS plastic production according to claim 1, characterized in that: A controller (7) is installed on the upper surface of the heater (6), and the controller (7) adjusts the temperature of the heater (6) and the rotation speed of the fan.

6. The drying equipment for ABS plastic production according to claim 1, characterized in that: A recovery pipe (13) is installed at the lower part of the drying drum (2), and the recovery pipe (13) is communicated with the air inlet of the blower (9).

Images