Air duct structure of color master batch drying machine

Abstract

The utility model relates to an air duct structure of a color master batch drying machine, which comprises a tank body and a heat exchanger, an air outlet pipe is arranged at the top of the tank body, an air inlet pipe is arranged on the lateral side of the lower portion of the tank body, an air outlet of the air outlet pipe is connected with the heat exchanger through an exhaust fan, and an air inlet of the air inlet pipe is connected with the heat exchanger through a heat pump. An exhaust pipe and an air inlet pipe are arranged on the heat exchanger, a first filter screen is arranged at an air inlet of the air outlet pipe, and a second filter screen is arranged at an air inlet of the air inlet pipe; by arranging the heat exchanger, damp hot air exhausted by the air outlet pipe and low-temperature air entering from the air inlet pipe are subjected to heat exchange, and finally, the hot air with the temperature reduced is exhausted from the air exhaust pipe, so that not only can the temperature of the production environment be prevented from rising, but also heat can be recycled, and energy is saved; and color master batch dust in wet hot air can be filtered out by arranging the first filter screen, and pollution to the production environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, and particularly relates to an air duct structure of a masterbatch dryer. Background Technique

[0002] During the processing and production of masterbatch, it is necessary to dry the produced masterbatch to remove the residual water stains on the surface of the masterbatch, so as to obtain high-quality masterbatch. The existing dryers for drying masterbatch usually put the masterbatch into the tank of the dryer, then introduce hot air into the tank through the air inlet pipe, use the hot air to dry the masterbatch, and then discharge the humid hot air in the tank through the exhaust pipe, so as to dry the masterbatch.

[0003] However, the air duct design of the existing dryer has defects. When the humid hot air is discharged from the exhaust pipe of the dryer, it causes the temperature of the production environment to rise, increasing the work burden of workers. Moreover, the masterbatch dust will be discharged with the hot air, polluting the production environment and affecting the health of workers. Content of the Utility Model

[0004] The purpose of the utility model is to design an air duct structure of a masterbatch dryer, which can solve the problems mentioned in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An air duct structure of a masterbatch dryer includes a tank body and a heat exchanger. An air outlet pipe is arranged at the top of the tank body, and an air inlet pipe is arranged on the side surface of the lower part of the tank body. The air outlet of the air outlet pipe is connected to the heat exchanger through a suction fan, and the air inlet of the air inlet pipe is connected to the heat exchanger through a heat pump. A exhaust air pipe and an air inlet pipe are respectively arranged on the heat exchanger. A first filter screen is arranged at the air inlet of the air outlet pipe, and a second filter screen is arranged at the air inlet of the air inlet pipe.

[0007] Further, a stirring mechanism is arranged inside the tank body.

[0008] Furthermore, the stirring mechanism includes a motor and a stirring shaft. The stirring shaft is located inside the tank body. Stirring blades are arranged on the side wall of the stirring shaft. The motor is fixed at the top of the tank body, and one end of the stirring shaft passes through the top of the tank body and is fixedly connected to the output end of the motor.

[0009] Furthermore, a number of distributed through holes are arranged on the stirring blades.

[0010] Further, a third filter screen is arranged at the air outlet of the air inlet pipe.

[0011] Furthermore, a silica gel drying plate with a porous surface is provided inside the exhaust duct.

[0012] Furthermore, a feed inlet is provided at the top of the tank body.

[0013] Furthermore, a discharge port is provided at the bottom of the tank body.

[0014] Furthermore, support feet are provided at the bottom of the tank body.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By providing a heat exchanger, the humid hot air discharged from the outlet duct exchanges heat with the low-temperature air entering through the inlet duct, and finally the heated air after temperature reduction is discharged through the exhaust duct. This not only prevents the temperature of the production environment from rising, but also recovers and utilizes the heat, saving energy.

[0017] By providing a first filter screen, the color masterbatch dust in the humid hot air can be filtered out to avoid polluting the production environment, and by providing a second filter screen, the dust in the low-temperature air can be filtered out to avoid polluting the color masterbatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 It is a cross-sectional view of the tank body in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the connection between the outlet duct and the top of the tank body in the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the exhaust duct and the inlet duct in the present utility model.

[0023] The names of the components marked in the drawings are as follows:

[0024] 1. Tank body; 2. Heat exchanger; 3. Air outlet pipe; 4. Air inlet pipe; 5. Exhaust fan; 6. Heat pump; 7. Exhaust duct; 8. Air inlet duct; 9. First filter screen; 10. Second filter screen; 11. Motor; 12. Stirring shaft; 13. Stirring blades; 14. Through holes; 15. Third filter screen; 16. Silica gel drying plate; 17. Feed inlet; 18. Discharge outlet; 19. Support feet. Detailed implementation manner

[0025] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manner, structure, features and their effects of the present utility model as follows.

[0026] As Figures 1-4 shown, an air duct structure of a masterbatch dryer includes a tank body 1 and a heat exchanger 2. An air outlet pipe 3 and a feed inlet 17 are provided at the top of the tank body 1. The air outlet pipe 3 is used to discharge humid hot air, and the feed inlet 17 is used to input masterbatch to be dried; an air inlet pipe 4 is provided on the side of the lower part of the tank body 1 for discharging hot air into the tank body 1; the air outlet of the air outlet pipe 3 is connected to the heat exchanger 2 through an exhaust fan 5, and the humid hot air in the tank body 1 is drawn into the heat exchanger 2 through the air outlet pipe 3 by the exhaust fan 5; the air inlet of the air inlet pipe 4 is connected to the heat exchanger 2 through a heat pump 6, and the hot air discharged from the heat exchanger 2 is further heated by the heat pump 6 and then enters the tank body 1 through the air inlet pipe 4; an exhaust duct 7 and an air inlet duct 8 are respectively provided on the heat exchanger 2. The exhaust duct 7 is used to discharge the hot air after the temperature is reduced, and the air inlet duct 8 is used for low-temperature air to enter the heat exchanger 2; a first filter screen 7 is provided at the air inlet of the air outlet pipe 3, which can filter out the masterbatch dust in the humid hot air to avoid polluting the production environment; a second filter screen 10 is provided at the air inlet of the air inlet duct 8, which can filter out the dust in the low-temperature air to avoid polluting the masterbatch; a third filter screen 15 is provided at the air outlet of the air inlet pipe 4 to prevent the masterbatch from entering the air inlet pipe 4 and causing blockage; a silica gel drying plate 16 with porous surfaces is provided inside the exhaust duct 7 for absorbing the moisture in the humid hot air to prevent the moisture from flowing back into the tank body 1 and reducing the drying efficiency; a discharge outlet 18 and support feet 19 are provided at the bottom of the tank body 1. The discharge outlet 18 is used to discharge the dried masterbatch.

[0027] A motor 11 is fixed at the top of the tank body 1. A stirring shaft 12 is provided inside the tank body 1. Stirring blades 13 are provided on the side wall of the stirring shaft 12. One end of the stirring shaft 12 passes through the top of the tank body 1 and is fixedly connected to the output end of the motor 11. The motor 11 drives the stirring shaft 12 to rotate, thereby driving the stirring blades 13 to stir the masterbatch to be dried and improving the drying efficiency of the hot air on the masterbatch; a number of distributed through holes 14 are provided on the stirring blades 13, which can reduce the force on the stirring blades 13 during the stirring process and prevent them from deforming.

[0028] Working principle:

[0029] As Figures 1-4 shown, when the dryer is in use, the masterbatch to be dried is put into the tank body 1 from the feed port 17, and then the heat pump 6, the exhaust fan 5, the heat exchanger 2 and the motor 11 are started. The low-temperature air will enter the heat exchanger 2 through the air inlet pipe 8. The second filter screen 10 can filter out the dust in the low-temperature air to avoid contaminating the masterbatch. After the low-temperature air is heated by the heat exchanger 2 to form hot air, the hot air is heated to the temperature required for drying by the heat pump 6, and then the hot air enters the tank body 1 through the air inlet pipe 4. The motor 11 drives the stirring shaft 12 to rotate, and then drives the stirring blades 13 to stir the masterbatch to be dried, improving the drying efficiency of the hot air on the masterbatch. The exhaust fan 5 will discharge the humid hot air in the tank body 1 through the air outlet pipe 3. The first filter screen 7 can filter out the masterbatch dust in the humid hot air to avoid polluting the production environment. Before that, the humid hot air will enter the heat exchanger 2, and the heat exchanger 2 exchanges heat between the humid hot air discharged from the air outlet pipe 3 and the low-temperature air entering from the air inlet pipe 8, recycling the heat, saving energy, and reducing the working load of the heat pump 6. Finally, the humid hot air after temperature reduction will be discharged to the outside through the exhaust pipe 7 to prevent the temperature of the production environment from rising. The silica gel drying plate 16 can absorb the moisture in the humid hot air to prevent the moisture from flowing back into the tank body 1 and reducing the drying efficiency.

[0030] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An air duct structure of a masterbatch dryer, characterized in that, It includes a tank body (1) and a heat exchanger (2). An air outlet pipe (3) is provided at the top of the tank body (1), and an air inlet pipe (4) is provided on the side of the lower part of the tank body (1). The air outlet of the air outlet pipe (3) is connected to the heat exchanger (2) through a suction fan (5), and the air inlet of the air inlet pipe (4) is connected to the heat exchanger (2) through a heat pump (6). The heat exchanger (2) is respectively provided with an exhaust air pipe (7) and an air inlet pipe (8). A first filter screen (9) is provided at the air inlet of the air outlet pipe (3), and a second filter screen (10) is provided at the air inlet of the air inlet pipe (8).

2. The air duct structure of the masterbatch dryer according to claim 1, characterized in that, A stirring mechanism is provided inside the tank body (1).

3. The air duct structure of the masterbatch dryer according to claim 2, characterized in that, The stirring mechanism includes a motor (11) and a stirring shaft (12). The stirring shaft (12) is located inside the tank body (1). Stirring blades (13) are provided on the side wall of the stirring shaft (12). The motor (11) is fixed at the top of the tank body (1), and one end of the stirring shaft (12) passes through the top of the tank body (1) and is fixedly connected to the output end of the motor (11).

4. The air duct structure of the masterbatch dryer according to claim 3, characterized in that, A number of distributed through holes (14) are provided on the stirring blades (13).

5. The air duct structure of the masterbatch dryer according to claim 1, characterized in that, A third filter screen (15) is provided at the air outlet of the air inlet pipe (4).

6. The air duct structure of the masterbatch dryer according to claim 1, characterized in that A silica gel drying plate (16) with porous surfaces is provided inside the exhaust air pipe (7).

7. The air duct structure of the color masterbatch dryer according to claim 1, characterized in that A feed inlet (17) is provided at the top of the tank body (1).

8. The air duct structure of the masterbatch dryer according to claim 1, characterized in that A discharge port (18) is provided at the bottom of the tank body (1).

9. The air duct structure of the masterbatch dryer according to claim 1, characterized in that, Support feet (19) are provided at the bottom of the tank body (1).

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