Polypropylene raw material processing device

Abstract

This invention relates to a polypropylene raw material processing device, specifically a drying device, comprising a drying chamber. A partition is vertically fixed inside the drying chamber, forming an air distribution cavity between the partition and the back of the chamber. Several horizontally pull-out air distribution shells are arranged side-by-side from top to bottom within the drying chamber. A rectangular enclosure is fixed to the upper surface of each air distribution shell, forming a material storage area within the rectangular enclosure. Several air distribution holes communicating with the inner cavity are evenly distributed on the upper surface of each air distribution shell. A ventilation structure communicating with the air distribution cavity is located on the back of each air distribution shell. This invention solves the problem in traditional box-type hot air dryers where, when drying multiple layers of granular material, the bottom air intake causes the hot air to exchange heat with the bottom layer of material, resulting in a temperature reduction and hindering rapid drying of the upper layers, thus affecting the drying uniformity among the multiple layers of granular material.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a polypropylene raw material processing device. Background Technology

[0002] Polypropylene (PP) raw material processing equipment is a combination of devices used to process polypropylene granules or powders to meet the needs of different production processes (such as modification, granulation, molding, etc.). Its core functions include raw material conveying, mixing, plasticizing, modification, and granulation. Commonly used in the plastics processing industry, it removes moisture from the polypropylene raw materials (especially recycled materials or materials stored in humid environments) to prevent problems such as bubbles and degradation during processing. Box-type hot air dryers have multiple layers of trays inside the chamber, with hot air entering from the bottom or side, passing through the material layers. Suitable for granular or small-piece materials, it has low investment costs and is suitable for small-scale production.

[0003] A prior art patent with publication number CN222135595U discloses a solution including a processing device body. A first filter plate and a second filter plate are installed within the processing device body. The first filter plate is positioned above the second filter plate. Multiple sets of first through holes are formed in a ring on the first filter plate. Multiple magnetic rings are fixedly connected to the lower end of the first filter plate, and each magnetic ring is positioned between the sets of first through holes. Magnetic strips are provided at the lower end of each magnetic ring. Multiple second through holes are formed on the second filter plate. This invention filters crushed plastic particles using the first filter plate. When the plastic particles pass through the first filter plate, the magnetic rings at the lower end of the first filter plate filter out metallic impurities. The second filter plate filters out smaller impurities in the plastic particles, thereby reducing the amount of impurities in the plastic particles and preventing impurities from affecting subsequent processing steps.

[0004] Existing devices, including those mentioned above, have gradually revealed shortcomings in the technology with use, mainly in the following aspects:

[0005] When existing box-type hot air dryers dry several layers of granular materials, the bottom air intake method causes the drying hot air to exchange heat with the bottom layer of material, resulting in a decrease in temperature. This makes it impossible to quickly dry the upper layers of material, thus affecting the drying uniformity among the several layers of granular materials.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, the polypropylene raw material processing device provided by this utility model solves the problem that in traditional box-type hot air dryers, when drying multiple layers of granular materials, the bottom air intake method causes the drying hot air to exchange heat with the bottommost material layer, resulting in a temperature reduction and preventing rapid drying of the upper layers, thus affecting the drying uniformity among multiple layers of granular materials.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A polypropylene raw material processing device includes a drying chamber. A partition is vertically fixed inside the drying chamber, and an air distribution cavity is formed between the partition and the back of the drying chamber. Several horizontally pull-out air distribution shells are arranged side by side from top to bottom in the drying chamber. A rectangular enclosure is fixed to the upper surface of the air distribution shell, and a material storage area is formed through the area inside the rectangular enclosure. Several air distribution holes communicating with the inner cavity are evenly distributed on the upper surface of the air distribution shell. A ventilation structure communicating with the air distribution cavity is provided on the back of the air distribution shell.

[0010] As an optimized solution, the ventilation structure includes a flat air inlet shell horizontally fixed to the back of the air distribution shell, the outlet end of the flat air inlet shell is connected to the inner cavity of the air distribution shell, the partition plate is provided with a connecting hole matching the flat air inlet shell, and the inlet end of the flat air inlet shell is connected to the air distribution cavity.

[0011] As an optimized solution, several ventilation holes are evenly distributed between the upper and lower end faces of the air distribution shell, and a cylinder is vertically fixed inside the air distribution shell in the area between two opposite ventilation holes.

[0012] As an optimized solution, several partition plates are fixedly connected in parallel from top to bottom inside the air distribution cavity, and the inner cavity of the air distribution cavity is divided into several air distribution cavities corresponding to each air distribution shell through the partition plates.

[0013] As an optimized solution, an air intake main pipe is fixedly connected to the outer back of the drying chamber, and an air intake pipe is fixedly connected to each of the air distribution cavities.

[0014] As an optimized solution, an air source connecting cylinder is fixedly connected to the side wall of the main air intake pipe.

[0015] As an optimized solution, a flow regulating valve is connected to the intake pipe.

[0016] As an optimized solution, a support mesh is laid on the upper surface of the air distribution shell.

[0017] As an optimized solution, a horizontal support strip is fixed to each of the air distribution shells on the relative inner wall of the drying chamber, and the relative lower edge of the air distribution shell is slidably supported on the horizontal support strip.

[0018] As an optimized solution, the front of the drying chamber is provided with an operating hole, and a door is hinged to the side edge of the operating hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By fixing a rectangular enclosure to the upper surface of the gas distribution shell and forming a storage area inside the rectangular enclosure, polypropylene granules can be contained. Under the action of the horizontal support bar, the gas distribution shell can be slidably supported. When the gas distribution shell slides, the flat air inlet shell is inserted into the connecting hole to connect with the gas distribution cavity.

[0021] Dry air from the air distribution cavity enters the air distribution shell and is evenly blown out through the evenly distributed air distribution holes to dry the polypropylene granules above. This achieves uniform and simultaneous drying of several layers of polypropylene granules, overcoming the problem in traditional technology where dry air entering from the bottom affects the drying uniformity of several layers of polypropylene granules, and improving the drying uniformity between several layers of polypropylene granules. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a top view of the flat air intake shell of this utility model.

[0025] In the diagram: 1-Drying chamber; 2-Partition; 3-Air distribution cavity; 4-Air distribution shell; 5-Air distribution hole; 6-Rectangular enclosure; 7-Supporting mesh; 8-Ventilation hole; 9-Cylinder; 10-Flat air inlet shell; 11-Dust cap; 12-Door; 13-Partition plate; 14-Air inlet pipe; 15-Flow regulating valve; 16-Main air inlet pipe. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2 As shown, the polypropylene raw material processing device includes a drying chamber 1. A partition 2 is vertically fixed inside the drying chamber 1, and an air distribution cavity 3 is formed between the partition 2 and the back of the drying chamber 1. Several horizontally pull-out air distribution shells 4 are arranged side by side from top to bottom in the drying chamber 1. A rectangular enclosure 6 is fixed to the upper surface of the air distribution shell 4, and a material storage area is formed through the area inside the rectangular enclosure 6. Several air distribution holes 5 connected to the inner cavity are evenly distributed on the upper surface of the air distribution shell 4. A ventilation structure connected to the air distribution cavity 3 is provided on the back of the air distribution shell 4.

[0028] The ventilation structure includes a flat air inlet shell 10 that is horizontally fixed to the back of the air distribution shell 4. The outlet end of the flat air inlet shell 10 is connected to the inner cavity of the air distribution shell 4. A connecting hole matching the flat air inlet shell 10 is provided on the partition plate 2. The inlet end of the flat air inlet shell 10 is connected to the air distribution cavity 3.

[0029] Several ventilation holes 8 are evenly distributed between the upper and lower end faces of the air distribution shell 4. A cylinder 9 is vertically fixed in the area between two opposite ventilation holes 8 inside the air distribution shell 4 to ensure air circulation between adjacent layers and improve the utilization rate of dry air.

[0030] The air distribution holes 5 and the ventilation holes 8 are alternately arranged.

[0031] Several partition plates 13 are fixedly connected in parallel from top to bottom inside the air distribution cavity 3, and the inner cavity of the air distribution cavity 3 is divided into several air distribution cavities corresponding to each air distribution shell 4 through the partition plates 13.

[0032] The outer back of the drying chamber 1 is fixedly connected to the main air intake pipe 16, and each air intake chamber is fixedly connected to a corresponding air intake pipe 14.

[0033] An air source connecting cylinder is fixedly connected to the side wall of the main air intake pipe 16.

[0034] A flow regulating valve 15 is connected to the air intake pipe 14.

[0035] The upper surface of the gas distribution shell 4 is covered with a support mesh 7, which can prevent particles from entering the interior of the gas distribution shell 4.

[0036] A horizontal support bar is fixed to each air distribution shell 4 on the inner wall of the drying chamber 1, and the lower edge of the air distribution shell 4 is slidably supported on the horizontal support bar.

[0037] An operating hole is provided on the front of the drying chamber 1, and a door 12 is hinged to the side edge of the operating hole.

[0038] A cloth bag-type dust cap 11 is fixedly attached to the top of the drying chamber 1.

[0039] The working principle of this device is as follows:

[0040] By fixing a rectangular enclosure 6 to the upper surface of the gas distribution shell 4, and forming a storage area through the area inside the rectangular enclosure 6, polypropylene particles can be contained. Under the action of the horizontal support bar, the gas distribution shell 4 can be slidably supported. When the gas distribution shell 4 slides, the flat air inlet shell 10 is inserted into the connecting hole to connect with the gas distribution cavity 3.

[0041] Dry air from the air distribution cavity 3 enters the air distribution shell 4 and is blown out evenly through the evenly distributed air distribution holes 5, thereby drying the polypropylene particles above. This achieves uniform and synchronous drying of several layers of polypropylene particles, overcoming the problem in traditional technology where the entry of dry air from the bottom affects the drying uniformity of several layers of polypropylene particles, and improving the drying uniformity between several layers of polypropylene particles.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A polypropylene raw material processing device, characterized in that: The equipment includes a drying chamber (1), a partition (2) is vertically fixed inside the drying chamber (1), and an air distribution cavity (3) is formed between the partition (2) and the back of the drying chamber (1). The drying chamber (1) has several horizontally pull-out air distribution shells (4) arranged side by side from top to bottom. A rectangular enclosure (6) is fixed to the upper surface of the air distribution shell (4), and a storage area is formed through the area inside the rectangular enclosure (6). Several air distribution holes (5) communicating with the inner cavity are evenly distributed on the upper surface of the air distribution shell (4). The back of the air distribution shell (4) is provided with a ventilation structure communicating with the air distribution cavity (3).

2. The polypropylene raw material processing device according to claim 1, characterized in that: The ventilation structure includes a flat air inlet shell (10) that is horizontally fixed to the back of the air distribution shell (4). The outlet end of the flat air inlet shell (10) is connected to the inner cavity of the air distribution shell (4). A connecting hole matching the flat air inlet shell (10) is provided on the partition plate (2). The inlet end of the flat air inlet shell (10) is connected to the air distribution cavity (3).

3. The polypropylene raw material processing device according to claim 2, characterized in that: A number of ventilation holes (8) are evenly distributed between the upper and lower end faces of the air distribution shell (4), and a cylinder (9) is vertically fixed in the area between two opposite ventilation holes (8) inside the air distribution shell (4).

4. The polypropylene raw material processing device according to claim 1, characterized in that: The air distribution cavity (3) has several partition plates (13) fixedly connected in parallel from top to bottom, and the inner cavity of the air distribution cavity (3) is divided into several air distribution cavities corresponding to each of the air distribution shells (4) by the partition plates (13).

5. The polypropylene raw material processing apparatus according to claim 4, characterized in that: The outer back of the drying chamber (1) is fixedly connected to the main air inlet pipe (16), and the main air inlet pipe (16) is fixedly connected to each of the air distribution cavities via a connected air inlet pipe (14).

6. The polypropylene raw material processing apparatus according to claim 5, characterized in that: An air source connecting cylinder is fixedly connected to the side wall of the main air intake pipe (16).

7. The polypropylene raw material processing apparatus according to claim 5, characterized in that: A flow regulating valve (15) is connected to the air intake pipe (14).

8. The polypropylene raw material processing apparatus according to claim 1, characterized in that: The upper surface of the air distribution shell (4) is covered with a support mesh (7).

9. The polypropylene raw material processing apparatus according to claim 1, characterized in that: A horizontal support bar is fixed to each of the air distribution shells (4) on the relative inner wall of the drying chamber (1), and the relative lower edge of the air distribution shell (4) is slidably supported on the horizontal support bar.

10. The polypropylene raw material processing apparatus according to claim 1, characterized in that: The drying chamber (1) has an operation hole on its front side, and a door (12) is hinged to the side edge of the operation hole.

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