Polypropylene powder purifying mechanism in polypropylene production

Abstract

The utility model discloses a polypropylene powder purification mechanism in polypropylene production belongs to powder purification technical field, including the feed pipe, conveying auger, conveying motor, heating pipe, collection cover, fan and collector, is equipped with the collection cover on the feed pipe, and the conveying auger is installed in the feed pipe, and the conveying motor drives the conveying auger, and is equipped with the fan on the collection cover, and the fan is connected the collector, and the heating pipe is installed on the outer wall of feed pipe, and the heating pipe heats the feed pipe.

Description

Technical Field

[0001] This utility model belongs to the field of powder purification technology, specifically a polypropylene powder purification mechanism for polypropylene production. Background Technology

[0002] Polypropylene (PP) is a colorless, translucent, and non-toxic thermoplastic resin with many excellent properties and processing characteristics. It boasts high transparency, non-toxicity, low specific gravity, ease of processing, impact resistance, high strength, chemical resistance, good torsion resistance, and good electrical insulation. Its properties can be easily improved through copolymerization, blending, filling, and reinforcement processes, combining its toughness, rigidity, heat resistance, and flame retardancy. Therefore, it has a wide range of applications. Currently, PP is widely used in various fields such as chemical industry, chemical fiber, construction, light industry, home appliances, packaging, agriculture, transportation, national defense, and civilian plastic products, and occupies an increasingly important position in the market.

[0003] However, polypropylene has gradually revealed some odor problems in practical applications. During production and downstream user use of polypropylene products, issues such as acidic or irritating polypropylene powder, failure to form a film during casting, pungent odors and fish-eye defects on the film surface during coating and biaxial stretching, and noticeable odors when heated in polypropylene injection-molded products used for food packaging and automotive interior parts, significantly limit the usability, safety, hygiene, and wide applicability of polypropylene products. It is generally believed that the odor problem is mainly due to small molecule substances volatilized at operating temperatures. To thoroughly investigate and eliminate the odor problem of polypropylene and improve product quality, effective measures must be taken to effectively remove small molecule volatile substances from polypropylene during industrial production. Utility Model Content

[0004] Technical problem to be solved by the utility model

[0005] The purpose of this invention is to solve the problem of residual volatile substances in polypropylene powder.

[0006] Technical solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model discloses a polypropylene powder purification mechanism for polypropylene production, comprising a conveying pipe, a conveying auger, a conveying motor, a heating pipe, a collecting hood, a fan, and a collector. The conveying pipe is equipped with a collecting hood, the conveying auger is installed inside the conveying pipe, the conveying motor drives the conveying auger, the collecting hood is equipped with a fan, the fan is connected to the collector, and the heating pipe is fitted onto the outer wall of the conveying pipe to heat the conveying pipe.

[0009] Preferably, the outer wall of the conveying pipe is provided with multiple slots, the heating tube is installed in the slots, and a pressure plate is provided on the heating tube to press the heating tube.

[0010] Preferably, the heating element is connected to the circulating water tank via a stainless steel water pipe. The circulating water tank is equipped with a water pump, a heater, and a thermostat. The water pump delivers warm water to the heating element.

[0011] Preferably, the inner top of the collection hood is provided with a guide plate and an air outlet, the air outlet is connected to a fan, and multiple guide plates are arranged around the air outlet.

[0012] Preferably, the inlet of the conveying pipe is located at the upper end of the conveying pipe and is connected to an external feeding device, while the outlet of the conveying pipe is located at the lower end of the conveying pipe.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] This utility model discloses a polypropylene powder purification mechanism for polypropylene production. Warm water is pumped into a heating pipe, which in turn heats the conveying pipeline, further heating the polypropylene powder inside the pipeline. This allows volatile substances in the powder to volatilize. The volatilized gas is collected by a collection hood and then transported out by a fan for recycling or reuse. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a polypropylene powder purification mechanism in polypropylene production according to the present invention.

[0017] Figure 2 This is a schematic diagram of a polypropylene powder purification mechanism in polypropylene production according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the solar collector body of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 100. Material conveying pipeline; 110. Traction groove;

[0021] 200. Conveying auger;

[0022] 300. Conveyor motor;

[0023] 400. Heating element; 410. Circulating water tank;

[0024] 500. Collection hood; 510. Deflector plate; 520. Air outlet;

[0025] 600. Fan;

[0026] 700, Collector. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Example 1

[0034] See attached document Figure 1-3 This embodiment of a polypropylene powder purification mechanism for polypropylene production includes a conveying pipe 100, a conveying auger 200, a conveying motor 300, a heating pipe 400, a collection hood 500, a blower 600, and a collector 700. The conveying pipe 100 is provided with a collection hood 500, the conveying auger 200 is installed inside the conveying pipe 100, the conveying motor 300 drives the conveying auger 200, the collection hood 500 is provided with a blower 600, the blower 600 is connected to the collector 700, and the heating pipe 400 is fitted and installed on the outer wall of the conveying pipe 100 to heat the conveying pipe 100.

[0035] In this embodiment, the outer wall of the material conveying pipe 100 is provided with a plurality of slots 110, the heating pipe 400 is installed in the slots 110, and a pressure plate is provided on the heating pipe 400 to press the heating pipe 400.

[0036] In this embodiment, the heating element 400 is connected to the circulating water tank 410 via a stainless steel water pipe. The circulating water tank 410 is equipped with a water pump, a heater, and a thermostat. The water pump delivers warm water to the heating element 400.

[0037] In this embodiment, the inner top of the collection cover 500 is provided with a guide plate 510 and an air outlet 520. The air outlet 520 is connected to the fan 600, and multiple guide plates 510 are arranged around the air outlet 520.

[0038] In this embodiment, the inlet of the conveying pipe 100 is located at the upper end of the conveying pipe 100 and is connected to an external feeding device, while the outlet of the conveying pipe 100 is located at the lower end of the conveying pipe 100.

[0039] Working principle: Warm water is pumped into the heating pipe 400, which heats the conveying pipe 100, further heating the polypropylene powder in the conveying pipe 100. This allows the volatile substances in the powder to volatilize. The volatilized gas is collected by the collection hood 500 and transported out by the fan 600 for recycling or reuse.

[0040] Among them, the heat conduction through warm water or hot water is relatively stable; and the deflector plate 510 can gather and guide the volatile gas.

[0041] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A polypropylene powder purification mechanism for polypropylene production, characterized in that: The device includes a conveying pipe (100), a conveying auger (200), a conveying motor (300), a heating pipe (400), a collecting cover (500), a fan (600), and a collector (700). The conveying pipe (100) is equipped with a collecting cover (500). The conveying auger (200) is installed inside the conveying pipe (100). The conveying motor (300) drives the conveying auger (200). The collecting cover (500) is equipped with a fan (600). The fan (600) is connected to the collector (700). The heating pipe (400) is fitted and installed on the outer wall of the conveying pipe (100) to heat the conveying pipe (100).

2. The polypropylene powder purification mechanism in polypropylene production according to claim 1, characterized in that: The outer wall of the conveying pipe (100) is provided with multiple slots (110), the heating tube (400) is installed in the slots (110), and a pressure plate is provided on the heating tube (400) to press the heating tube (400).

3. The polypropylene powder purification mechanism in polypropylene production according to claim 1, characterized in that: The heating tube (400) is connected to the circulating water tank (410) through a stainless steel water pipe. The circulating water tank (410) is equipped with a water pump, a heater and a thermostat. The water pump delivers warm water to the heating tube (400).

4. The polypropylene powder purification mechanism in polypropylene production according to claim 1, characterized in that: The inner top of the collection hood (500) is provided with a guide plate (510) and an air outlet (520). The air outlet (520) is connected to a fan (600), and multiple guide plates (510) are arranged around the air outlet (520).

5. The polypropylene powder purification mechanism in polypropylene production according to claim 1, characterized in that: The inlet of the conveying pipe (100) is located at the upper end of the conveying pipe (100) and is connected to an external feeding device, while the outlet of the conveying pipe (100) is located at the lower end of the conveying pipe (100).

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