A special mixing device for modified plastic particle granulation

Abstract

The utility model relates to plastic particle mixing technology field, and disclose a kind of special mixing equipment for modified plastic particle granulation, including mixing mechanism, the mixing mechanism includes the tank body with inlet and valve discharge port, and tank body midpoint is equipped with the stirring shaft for granule agitation motor drive;It further includes drying mechanism, the drying mechanism includes embedding in the surface of tank body and being connected with external air blower L-shaped air inlet pipe, and continuously supplies air to tank body interior, the air inlet position of L-shaped air inlet pipe is higher than the air outlet position;And, with electric control valve and being connected to the surface of tank body air outlet pipe, L-shaped air inlet pipe is connected with external air blower, and the granule in the mixing of tank body interior is dried, reduce the moisture content of granule, compared with prior art, the device makes granule more difficult to cake, guarantee mixing quality, more difficult to occur plugging when discharging simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule mixing technology, specifically a special mixing equipment for modified plastic granule granulation. Background Technology

[0002] Mixing various plastic granule base materials and modified auxiliary materials is a key process before granulation of modified plastic granules. Its core objective is to achieve uniform dispersion of various different granules, ensuring the stability of subsequent processing steps such as extrusion and injection molding, as well as the consistency of the mechanical properties, appearance quality, and functions of the final product.

[0003] In actual mixing, the moisture absorption rates of various particles are different (PA, PET and recycled materials are more susceptible to moisture than PVC and PES), causing some plastic particles to become damp. This not only makes them prone to sticking together and clumping during mixing, affecting the uniformity of the mixture, but also causes large pieces to clog the discharge. Therefore, a special mixing equipment for modified plastic granules is needed to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a special mixing equipment for modified plastic granules, so as to solve the problem mentioned in the background art that in actual mixing, the moisture absorption rate of various plastic granules is different (PA, PET and recycled materials are more susceptible to moisture than PVC and PES), which causes some plastic granules to become damp. This not only makes them prone to sticking and clumping during mixing, affecting the uniformity of mixing, but also causes large pieces to block the discharge.

[0005] This utility model provides the following technical solution: a special mixing equipment for granulation of modified plastic granules, including a mixing mechanism, wherein the mixing mechanism includes a tank with an inlet and an outlet with a valve, and a stirring shaft for granule stirring motor drive is provided at the midpoint of the tank; It also includes a drying mechanism, which includes an L-shaped air inlet pipe embedded in the surface of the tank and connected to an external blower to continuously supply air to the inside of the tank. The air inlet of the L-shaped air inlet pipe is higher than the air outlet. And an air outlet pipe with an electrically controlled valve connected to the surface of the tank; The L-shaped air inlet and outlet pipes are symmetrically distributed, and the outlet pipe is located at least 50cm above the L-shaped air inlet pipe.

[0006] As a further improvement to this utility model, the tank body is divided into an upper cover, a middle section, and a lower cover connected by flanges.

[0007] As a further improvement to this utility model, the stirring shaft is connected with a plurality of cylindrical auxiliary rods and a plurality of triangular auxiliary rods, and the cylindrical auxiliary rods and triangular auxiliary rods are staggered left and right, and the inclined surface of the triangular auxiliary rods faces the same direction as the stirring direction of the stirring shaft.

[0008] As a further improvement to this utility model, there are several feed inlets, which are connected to different particle feeding pipes.

[0009] As a further improvement to this utility model, the horizontal section of the L-shaped air inlet pipe extends away from the tank to form an open-shaped extended section, and the open section is sealed with a threaded sealing cap.

[0010] As a further improvement to this utility model, a filter screen is inserted into the horizontal section of the L-shaped air inlet pipe, and a blocking ring is connected at the air outlet of the L-shaped air inlet pipe to block the filter screen.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model uses an L-shaped air inlet pipe connected to an external blower to dry the particles mixed inside the tank, reducing the moisture content of the particles.

[0012] 2. This utility model can close the valve on the air outlet pipe during discharge, allowing the L-shaped air inlet pipe to continuously supply air, increasing the internal pressure of the tank and improving the discharge speed.

[0013] 3. Compared with the prior art, this device makes the particles less prone to clumping, ensuring the mixing quality, and is less prone to clogging during discharge. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an exploded top-view perspective of the overall structure of this utility model, showing the overall disassembled state.

[0016] Figure 2 This is a top-view perspective view of the overall structure of this utility model.

[0017] Figure 3 This is a top-view perspective view of the drying mechanism structure of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the L-shaped air inlet duct structure of this utility model, showing the internal situation of the L-shaped air inlet duct.

[0019] Figure 5 This is a three-dimensional schematic diagram of the stirring shaft structure of this utility model, showing the distribution of the cylindrical auxiliary rod and the triangular auxiliary rod.

[0020] The names represented by the part numbers in the above diagram are as follows: 100. Mixing mechanism; 111. Tank body; 112. Stirring shaft; 1021. Cylindrical auxiliary rod; 1022. Triangular auxiliary rod; 113. Inlet; 114. Outlet with valve; 200. Drying mechanism; 211. L-shaped air inlet pipe; 2011. Extended section; 2012. Sealing cover; 2013. Baffle ring; 2014. Filter screen; 212. Air outlet pipe; Detailed Implementation The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] Example: Refer to the instruction manual appendix Figure 1 and 2 This utility model provides a special mixing equipment for granulation of modified plastic granules. The mixing mechanism 100 includes a tank 111 with an inlet 113 and an outlet 114 with a valve. There are several inlets 113, which are connected to different granule feeding pipes to facilitate the simultaneous feeding of different granules, making it less likely for large-scale stratification to occur after feeding and shortening the mixing time. At the midpoint of the tank 111, there is a stirring shaft 112 for granule stirring motor drive. Several cylindrical auxiliary rods 1021 and several triangular auxiliary rods 1022 are connected to the stirring shaft 112. The cylindrical auxiliary rods 1021 and triangular auxiliary rods 1022 are staggered left and right. The inclined surface of the triangular auxiliary rod 1022 faces the same direction as the stirring direction of the stirring shaft 112, which increases the size of its stirring range. At the same time, the tank 111 is divided into an upper cover, a middle section and a lower cover connected by flanges. Refer to the instruction manual appendix Figure 3 It also includes a drying mechanism 200, which includes an L-shaped air inlet pipe 211 embedded in the surface of the tank 111 and connected to an external blower to continuously supply air to the inside of the tank 111. The air inlet of the L-shaped air inlet pipe 211 is higher than the air outlet. The L-shaped air inlet pipe 211 is connected to the external blower to dry the particles mixed inside the tank 111 and reduce the moisture content of the particles. Additionally, an air outlet pipe 212 with an electrically controlled valve connected to the surface of the tank 111 can be closed during material discharge, allowing the L-shaped air inlet pipe 211 to continuously supply air, increasing the internal pressure of the tank 111 and improving the discharge speed. The L-shaped air inlet pipe 211 and the air outlet pipe 212 are symmetrically distributed, and the air outlet pipe 212 is located at least 50cm above the L-shaped air inlet pipe 211.

[0022] Refer to the instruction manual appendix Figure 4The horizontal section of the L-shaped air inlet pipe 211 extends away from the tank 111 to form an open-shaped extended section 2011. The opening of the extended section 2011 is sealed with a threaded sealing cap 2012. A filter screen 2014 is inserted into the horizontal section of the L-shaped air inlet pipe 211, and a blocking ring 2013 is connected at the air outlet of the L-shaped air inlet pipe 211 to block the filter screen 2014. The filter screen 2014 is used to filter the airflow entering the tank 111. In addition, after opening the sealing cap 2012, the horizontal section of the L-shaped air inlet pipe 211 can be cleaned as a whole, and the filter screen 2014 can be removed and replaced.

[0023] When in use, several different particles are added into the tank 111 through the feed inlet 113. Note that the height of the particle pile should be at least 20cm lower than the air outlet of the air pipe 212. Then the motor of the stirring shaft 112 is started to stir and mix the different particles. During the mixing process, the blower connected to the L-shaped air inlet pipe 211 is started to continuously supply air to the inside of the tank 111. The airflow carrying water vapor is discharged from the air outlet pipe 212 to complete the drying process. During discharge, the valve body of the air outlet pipe 212 is closed, the L-shaped air inlet pipe 211 continues to supply air, and the valve body of the valved discharge port 114 is opened, allowing the mixed particles to be continuously discharged.

[0024] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A mixing device for modified plastic granule granulation, comprising a mixing mechanism (100), wherein the mixing mechanism (100) includes a tank (111) with an inlet (113) and an outlet (114) with a valve, and a stirring shaft (112) for granule stirring motor drive is provided at the midpoint of the tank (111), characterized in that: The stirring shaft (112) is connected to a plurality of cylindrical auxiliary rods (1021) and a plurality of triangular auxiliary rods (1022), and the cylindrical auxiliary rods (1021) and the triangular auxiliary rods (1022) are offset to the left and right. The inclined surface of the triangular auxiliary rod (1022) is oriented in the same direction as the stirring direction of the stirring shaft (112). It also includes a drying mechanism (200), which includes an L-shaped air inlet pipe (211) embedded in the surface of the tank (111) and connected to an external blower, continuously supplying air to the inside of the tank (111), and the air inlet of the L-shaped air inlet pipe (211) is higher than the air outlet. And an air outlet pipe (212) with an electrically controlled valve connected to the surface of the tank (111). The L-shaped air inlet pipe (211) and air outlet pipe (212) are symmetrically distributed, and the air outlet pipe (212) is located at least 50cm above the L-shaped air inlet pipe (211).

2. The special mixing equipment for modified plastic granule granulation according to claim 1, characterized in that: The tank body (111) is divided into an upper cover, a middle section and a lower cover connected by flanges.

3. The special mixing equipment for modified plastic granule granulation according to claim 1, characterized in that: There are several feed inlets (113), which are connected to different particle feeding pipes.

4. The special mixing equipment for modified plastic granule granulation according to claim 1, characterized in that: The horizontal section of the L-shaped air inlet pipe (211) extends away from the tank body (111) to form an open-shaped extended section (2011), and the open section (2011) is sealed with a threaded sealing cap (2012).

5. The special mixing equipment for modified plastic granule granulation according to claim 4, characterized in that: A filter element (2014) is inserted into the horizontal section of the L-shaped air inlet duct (211), and a blocking ring (2013) is connected at the air outlet of the L-shaped air inlet duct (211) to block the filter element (2014).

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