A cooling device for polypropylene production

Abstract

The utility model discloses a kind of cooling devices for polypropylene production, including body mechanism and cooling mechanism, the body mechanism includes shell and inner shell, the inner shell is integrally formed on the inboard of shell, the shell and inner shell are formed with interlayer between, the interlayer is filled with phase change material;The cooling mechanism includes stirring shaft, the stirring shaft is rotatably connected on the top wallboard of shell in the mode of penetration, the stirring shaft is fixedly connected with multiple stirring plates on the side wall in shell, the bottom of the stirring shaft is fixedly connected with gas delivery cylinder.The utility model sets up phase change material in the interlayer of double-layer shell, through phase change material constantly no-load absorption processing to the heat of polypropylene, cooling gas is contacted with polypropylene uniformly by atomization and stirring mode, to improve the contact area of cooling gas and polypropylene, to effectively improve the cooling effect of polypropylene, while reducing the energy consumption required for cooling.

Description

Technical Field

[0001] This utility model belongs to the field of polypropylene production technology, specifically relating to a cooling device for polypropylene production. Background Technology

[0002] Polypropylene is a semi-crystalline thermoplastic polymer made from propylene monomers through an addition polymerization reaction. It is usually a white, waxy solid, non-toxic, odorless, transparent, and lightweight. It has good chemical stability, heat resistance, transparency, and mechanical properties, and is used in the manufacture of medical devices. It also has good corrosion resistance, weather resistance, and plasticity, and is used in the manufacture of building and construction materials.

[0003] Polypropylene production requires cooling devices, but existing cooling devices suffer from high energy consumption and poor cooling effect due to uneven contact between the cooling medium and polypropylene.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for polypropylene production, which can solve the problems of high cooling energy consumption and poor cooling effect caused by uneven contact between the cooling medium and polypropylene.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A cooling device for polypropylene production includes a main body and a cooling mechanism. The main body includes an outer shell and an inner shell, the inner shell being integrally formed inside the outer shell. A sandwich layer is formed between the outer shell and the inner shell, and the sandwich layer is filled with a phase change material. The cooling mechanism includes a stirring shaft, which is rotatably connected to the top wall panel of the outer shell in a through manner. Multiple stirring plates are fixedly connected to the stirring shaft on the side wall inside the outer shell. A gas delivery cylinder is fixedly connected to the bottom of the stirring shaft. Multiple exhaust nozzles are installed on the bottom wall panel of the gas delivery cylinder. The cooling mechanism also includes a cooling gas delivery assembly for delivering cooling gas to the gas delivery cylinder.

[0008] In one or more embodiments of this utility model, the outer shell and inner shell are made of metal with excellent thermal conductivity, and the phase change material is a paraffin-based phase change material.

[0009] In one or more embodiments of the present invention, a plurality of heat dissipation fins are fixedly connected to the outer side wall of the outer shell at equal intervals, and the heat dissipation fins are arranged in a vertically extending manner.

[0010] In one or more embodiments of the present invention, the top wall panel of the outer shell is provided with a filling port above the interlayer, and the bottom wall panel of the outer shell is provided with a discharge port below the interlayer.

[0011] In one or more embodiments of the present invention, the top wall panel of the outer shell is provided with a feed inlet located inside the inner shell, and the bottom of the outer shell is provided with a discharge outlet located inside the inner shell.

[0012] In one or more embodiments of this utility model, the air delivery cylinder is configured as a conical structure with a small diameter at the top and a large diameter at the bottom, and the plurality of exhaust nozzles are inclined in a way that diffuses outward, and the plurality of exhaust nozzles are arranged in a ring with equal spacing.

[0013] In one or more embodiments of the present invention, the cooling gas delivery assembly includes a gas delivery groove extending vertically within a stirring shaft, the gas delivery groove being connected to the gas delivery cylinder.

[0014] In one or more embodiments of this utility model, the stirring shaft is provided with a plurality of vent holes on the side wall inside the housing at equal intervals, and the plurality of vent holes are arranged from the inside to the outside of the stirring shaft in a downward inclined manner.

[0015] In one or more embodiments of this utility model, the stirring shaft is provided with a plurality of air inlets on the side wall of the outer side of the top of the housing, and an air supply ring is rotatably connected to the outer side wall of the stirring shaft outside the plurality of air inlets.

[0016] In one or more embodiments of this utility model, an air supply pipe is fixedly connected to the side wall of the air supply ring, and a regulating valve is installed on the air supply pipe.

[0017] Compared with the prior art, this utility model sets a phase change material in the sandwich of the double shell. The phase change material continuously absorbs the heat of polypropylene without energy consumption. The cooling gas is atomized and stirred to make uniform contact with polypropylene, so as to increase the contact area between the cooling gas and polypropylene. This effectively improves the cooling effect of polypropylene while reducing the energy consumption required for cooling. Attached Figure Description

[0018] 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 only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a cooling device for polypropylene production according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view of a cooling device for polypropylene production according to an embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional view of a cooling device for polypropylene production according to an embodiment of the present invention.

[0022] Figure 4 This is a cross-sectional view of a cooling device for polypropylene production according to an embodiment of the present invention.

[0023] Figure 5 This utility model Figure 4 A schematic diagram at point A in the middle;

[0024] Figure 6 This is an exploded view of the stirring shaft and the gas conveying ring in this utility model;

[0025] Figure 7 This is a schematic diagram of the gas delivery cylinder of this utility model.

[0026] Explanation of key figure labels:

[0027] 1-Main body structure, 11-Outer shell, 12-Inner shell, 13-Interlayer, 14-Phase change material, 15-Heat dissipation fins, 16-Filling port, 17-Discharge port, 18-Inlet port, 19-Outlet port, 2-Cooling mechanism, 21-Stirring shaft, 22-Stirring plate, 23-Gas delivery channel, 24-Exhaust port, 25-Gas delivery cylinder, 26-Exhaust nozzle, 27-Inlet port, 28-Gas delivery ring, 29-Gas delivery pipe, 210-Regulating valve. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] like Figures 1-4As shown, a cooling device for polypropylene production according to one embodiment of the present invention includes a main body 1 and a cooling mechanism 2. The main body 1 includes an outer shell 11 and an inner shell 12. The inner shell 12 is integrally formed inside the outer shell 11. A sandwich 13 is formed between the outer shell 11 and the inner shell 12. The sandwich 13 is filled with a phase change material 14. The cooling mechanism 2 includes a stirring shaft 21. The stirring shaft 21 is rotatably connected to the top wall of the outer shell 11 in a through manner. Multiple stirring plates 22 are fixedly connected to the stirring shaft 21 on the side wall inside the outer shell 11. A gas delivery cylinder 25 is fixedly connected to the bottom of the stirring shaft 21. Multiple exhaust nozzles 26 are installed on the bottom wall of the gas delivery cylinder 25. The cooling mechanism 2 also includes a cooling gas delivery assembly for delivering cooling gas to the gas delivery cylinder 25.

[0030] When using this cooling device for polypropylene production, polypropylene is fed into the device, where it comes into contact with the inner shell 12. The inner shell 12 then transfers the heat from the polypropylene to the interlayer 13, where the phase change material 14 absorbs the heat. The heat absorbed by the phase change material 14 is then conducted to the outside through the outer shell 11, thus partially removing the heat from the polypropylene. By rotating the stirring shaft 21, multiple stirring plates 22 and the bottom gas delivery cylinder 25 rotate, simultaneously delivering cooling gas into the gas delivery cylinder 25 through the cooling gas delivery assembly. The cooling gas passes through multiple exhaust vents at the bottom of the gas delivery cylinder 25. The nozzle 26 atomizes the gas and discharges it in a rotating manner, allowing the cooling gas to enter from the bottom of the cooling device. During the stirring process of the stirring plate 22, the gas moves upward evenly, ensuring uniform contact between the cooling gas and the polypropylene, thus greatly improving the cooling effect of the cooling gas on the polypropylene. Through improvements, the cooling device continuously absorbs the heat of the polypropylene without energy consumption through the jacket 13. The cooling gas makes uniform contact with the polypropylene through atomization and stirring, thereby increasing the contact area between the cooling gas and the polypropylene. In this way, the above improvements greatly improve the cooling efficiency of the polypropylene while reducing energy consumption.

[0031] Preferably, the outer shell 11 and the inner shell 12 are made of a metal material with excellent thermal conductivity, which improves the cooling capacity of the polypropylene. The phase change material 14 is a paraffin-based phase change material, which has good heat absorption capacity.

[0032] like Figures 1-4 As shown, multiple heat dissipation fins 15 are fixedly connected to the outer side wall of the outer shell 11 at equal intervals. The heat dissipation fins 15 are arranged to extend vertically, so that the heat absorbed by the phase change material 14 is conducted out through the outer shell 11 and then quickly dissipated under the action of the multiple heat dissipation fins 15, thereby improving the heat absorption performance of the phase change material 14 and improving the ability to cool down without power consumption.

[0033] like Figures 1-4 As shown, the top wall panel of the outer shell 11 is provided with a filling port 16 above the interlayer 13, and the bottom wall panel of the outer shell 11 is provided with a discharge port 17 below the interlayer 13, for filling and discharging phase change materials.

[0034] like Figures 1-4 As shown, an inlet 18 is provided on the top wall of the outer shell 11 on the inner side of the inner shell 12, and an outlet 19 is provided on the bottom of the outer shell 11 on the inner side of the inner shell 12. Polypropylene is added to the cooling device through the inlet 18, cooled down, and then discharged through the outlet 19.

[0035] like Figure 5 and Figure 7 As shown, the gas cylinder 25 is a conical structure with a small diameter at the top and a large diameter at the bottom. Multiple exhaust nozzles 26 are inclined in a way that diffuses outwards, and the multiple exhaust nozzles 26 are arranged in a ring with equal spacing. The conical structure of the gas cylinder 25 avoids polypropylene residue on the gas cylinder 25.

[0036] like Figure 4 and Figure 5 As shown, the cooling gas delivery assembly includes a gas delivery channel 23 extending vertically within the stirring shaft 21. The gas delivery channel 23 is connected to the gas delivery cylinder 25 so that the gas delivery channel 23 delivers the cold zone gas to the gas delivery cylinder 25.

[0037] like Figure 4 and Figure 5 As shown, the stirring shaft 21 is provided with multiple vent holes 24 at equal intervals on the side wall inside the housing 11. The multiple vent holes 24 are arranged downwards from the inside to the outside of the stirring shaft 21. When the air delivery channel 23 delivers cold air, part of the cold air is ejected through the multiple vent holes 24 to cool the polypropylene.

[0038] like Figure 1 and Figure 6 As shown, the stirring shaft 21 is located on the side wall of the outer side of the top of the outer casing 11 and has multiple air inlets 27. An air supply ring 28 is rotatably connected to the outer side wall of the stirring shaft 21 outside the multiple air inlets 27.

[0039] like Figure 1 and Figure 6 As shown, a gas supply pipe 29 is fixedly connected to the side wall of the gas supply ring 28, and a regulating valve 210 is installed on the gas supply pipe 29. The gas supply pipe 29 delivers cold air to the gas supply ring 28, and the gas supply ring 28 delivers the cold air to the gas supply groove 23 through multiple air inlets 27, so as to realize the delivery of gas in the gas supply groove 23. At the same time, the rotatability of the gas supply ring 28 relative to the stirring shaft 21 ensures that the delivery of cold air is not affected by the rotation of the stirring shaft 21.

[0040] In use, polypropylene is transported to the cooling device, where it comes into contact with the inner shell 12. The inner shell 12 then transfers the heat from the polypropylene to the interlayer 13, where the phase change material 14 absorbs the heat. The heat absorbed by the phase change material 14 is then conducted out through the outer shell 11 and released to the outside through multiple heat dissipation fins 15, thus partially treating the heat of the polypropylene. By rotating the stirring shaft 21, multiple stirring plates 22 and the bottom gas delivery cylinder 25 rotate, simultaneously delivering cooling gas into the gas delivery trough 23 through the gas delivery pipe 29. The gas delivery trough 23 then delivers the cooling gas into the gas delivery cylinder 25, and the cooling gas passes through the gas delivery cylinder 25. Multiple exhaust nozzles 26 at the bottom atomize and discharge the gas in a rotating manner, allowing the cooling gas to enter from the bottom of the cooling device. During the stirring process of the polypropylene by the stirring plate 22, the cold air moves upward evenly, thereby ensuring uniform contact between the cooling gas and the polypropylene, which greatly improves the cooling effect of the cooling gas on the polypropylene. Through the improvement, the cooling device continuously absorbs the heat of the polypropylene without energy consumption through the jacket 13. The cooling gas makes uniform contact with the polypropylene through atomization and stirring, so as to increase the contact area between the cooling gas and the polypropylene. Thus, the above improvements greatly improve the cooling efficiency of the polypropylene while reducing energy consumption.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling device for polypropylene production, characterized by, include: The main body structure includes an outer shell and an inner shell, the inner shell being integrally formed inside the outer shell, and a sandwich layer being formed between the outer shell and the inner shell, the sandwich layer being filled with a phase change material; The cooling mechanism includes a stirring shaft rotatably connected to the top wall panel of the housing in a through manner. Multiple stirring plates are fixedly connected to the stirring shaft on the side wall inside the housing. A gas delivery cylinder is fixedly connected to the bottom of the stirring shaft. Multiple exhaust nozzles are installed on the bottom wall panel of the gas delivery cylinder. The cooling mechanism also includes a cooling gas delivery assembly for delivering cooling gas to the gas delivery cylinder.

2. The cooling device for polypropylene production according to claim 1, characterized in that, The outer and inner shells are made of metal with excellent thermal conductivity, and the phase change material is a paraffin-based phase change material.

3. The cooling device for polypropylene production according to claim 2, characterized in that, Multiple heat dissipation fins are fixedly connected to the outer wall of the outer shell at equal intervals, and the heat dissipation fins are arranged to extend vertically.

4. The cooling device for polypropylene production according to claim 3, characterized in that, The top wall panel of the outer casing has a filling port located above the interlayer, and the bottom wall panel of the outer casing has a discharge port located below the interlayer.

5. The cooling device for polypropylene production according to claim 4, characterized in that, The top wall panel of the outer shell has a feed inlet located inside the inner shell, and the bottom of the outer shell has a discharge outlet located inside the inner shell.

6. The cooling device for polypropylene production according to claim 1, characterized in that, The gas cylinder is configured as a conical structure with a small diameter at the top and a large diameter at the bottom. The multiple exhaust nozzles are inclined in a way that diffuses outwards, and the multiple exhaust nozzles are arranged in a ring with equal spacing.

7. The cooling device for polypropylene production according to claim 1, characterized in that, The cooling gas delivery assembly includes a gas delivery groove extending vertically within the stirring shaft, and the gas delivery groove is connected to the gas delivery cylinder.

8. The cooling device for polypropylene production according to claim 7, characterized in that, The stirring shaft is provided with multiple vent holes on the side wall inside the housing at equal intervals, and the multiple vent holes are arranged from the inside of the stirring shaft to the outside in a downward inclined manner.

9. The cooling device for polypropylene production according to claim 8, characterized in that, The stirring shaft is located on the outer side wall of the top of the outer casing and has multiple air inlets. An air supply ring is rotatably connected to the outer side wall of the stirring shaft outside the multiple air inlets.

10. The cooling device for polypropylene production according to claim 9, characterized in that, An air supply pipe is fixedly connected to the side wall of the air supply ring, and a regulating valve is installed on the air supply pipe.

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