Polymer pelletizing abnormal stringing separation device

Abstract

The utility model discloses a kind of polymer granulation abnormal wire drawing separation devices, including feeding pipe, bunker and abnormal wire drawing separation mechanism;The abnormal wire drawing separation mechanism includes material distributor, frequency conversion fan, foreign matter collection box;The material distributor is below the discharge port of feeding pipe;The material distributor includes first fixed frame, material distribution pipe;The material distribution pipe is obliquely arranged in first fixed frame;The discharge port of the material distribution pipe is flat open structure;The frequency conversion fan, foreign matter collection box are located the both sides of material distributor, below the discharge port of material distribution pipe;The material distributor is communicated with bunker.The utility model is simple in structure, and practicality is strong, can separate and remove abnormal wire drawing under the condition of not interrupting production granulation, avoid the pollution of whole batch material due to the material of wire drawing, and then effectively guarantee product quality.

Description

Technical Field

[0001] This utility model relates to the field of polymer material manufacturing equipment technology, and in particular to a polymer granulation abnormal drawing separation device. Background Technology

[0002] During the continuous production and granulation of polymers, local anomalies such as elongation, granulation sticking, and fiber formation are unavoidable. Fiber formation is particularly noticeable when producing materials requiring high-temperature drying. If abnormal fiber formation is not detected promptly, it can be mixed into other qualified raw materials, leading to a decrease in product yield and quality, thereby impacting the manufacturer's brand influence.

[0003] Currently, the problem of fiber drawing during continuous polymer granulation is difficult to solve. Common solutions involve increasing the frequency of on-site inspections to increase the probability of detecting abnormal fiber drawing. Even when fiber drawing is detected, the process is cumbersome, requiring the unpacking of already packaged materials for manual inspection. If abnormal fiber drawing is found mixed in, manual sorting and repackaging are necessary. This not only affects production efficiency but also increases labor costs. Furthermore, the repackaging process can lead to contamination from other substances, causing even greater product quality issues. Existing technology discloses an isolation device for abnormal points, including multiple independent transition hoppers, a main feed inlet, a main discharge inlet for normal materials, and hopper supports. This device can isolate abnormal points without interrupting granulation production, but it cannot remove the fiber drawing generated during production.

[0004] Therefore, in response to the above problems and technical requirements, it is necessary to develop a device that can separate abnormal filaments without interrupting granulation production. Summary of the Invention

[0005] The purpose of this invention is to provide a polymer granulation abnormal stringing separation device. It has a simple structure and strong practicality. It can separate and remove abnormal stringing without interrupting granulation production, thereby avoiding contamination of the entire batch of materials due to stringing and effectively ensuring product quality.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A polymer granulation abnormal fiber-separation device includes a feeding pipe, a hopper, and an abnormal fiber-separation mechanism. The abnormal fiber-separation mechanism includes a material distributor, a variable frequency fan, and a foreign matter collection box. The material distributor is located below the outlet of the feeding pipe. The material distributor includes a first fixed frame and a material distribution pipe. The material distribution pipe is inclined within the first fixed frame. The outlet of the material distribution pipe has a flat, open structure. The variable frequency fan and the foreign matter collection box are located on both sides of the material distributor, below the outlet of the material distribution pipe. The material distributor is connected to the hopper.

[0007] In this invention, the outer wall of the silo is provided with a conventional insulation layer, such as conventional flame-retardant insulation cotton, to maintain the temperature of the silo and materials, prevent condensation, and ensure smooth subsequent conveying and packaging without affecting the understanding of the technical effects of this invention by those skilled in the art.

[0008] In this invention, the variable frequency fan is preferably an explosion-proof variable frequency fan. The appropriate fan can be selected based on the actual application, without affecting the understanding of the technical effects of this invention by those skilled in the art.

[0009] In this invention, the material is conveyed to the material distributor by the feeding pipe. The material distributor is inclined and located in the first fixed frame. The outlet of the material distributor is a flat and open structure, which allows the material to fall evenly and flatly. This ensures that the airflow generated by the frequency converter fan can contact each material particle, avoiding material accumulation that could affect the separation and removal of abnormal fibers. The frequency converter fan is positioned opposite to the foreign matter collection box. The airflow generated by the frequency converter fan blows the abnormal fibers and powder in the material to the foreign matter collection box. The material falls normally into the hopper and is then conveyed to the outside, thus achieving the separation and removal of abnormal fibers without interrupting production granulation.

[0010] Furthermore, the material distribution pipe includes a main pipe and a discharge pipe; the discharge pipe has a flat, open structure and is connected to the main pipe. More preferably, the flat, open structure is an adjustable-size flat, open structure. The discharge pipe's flat, open design flattens the falling material flow, forming a thin "material curtain" rather than a concentrated column of material, allowing the airflow generated by the variable frequency fan to contact each material particle, preventing material accumulation from affecting the separation and removal of abnormal fibers. The adjustable opening size of the flat, open structure can be achieved in various ways, such as by the discharge pipe consisting of four guide plates, one of which is rotatably mounted on the main pipe. Other methods can also be used in actual production, as long as the adjustable opening size of the flat, open structure is achieved.

[0011] Preferably, the variable frequency fan is equipped with an airflow regulator at its outlet. More preferably, the airflow regulator includes a second fixed frame and a guide plate rotatably mounted on the second fixed frame. The airflow regulator is used to adjust the airflow direction, further ensuring the separation and removal of abnormal filaments.

[0012] Preferably, the foreign object collection box includes a third fixed frame and a collection net; the collection net is located on the side of the third fixed frame away from the variable frequency fan. More preferably, the aperture of the collection net is 3-8mm; the foreign object collection box is equipped with a pull-out box. The collection net allows airflow while preventing abnormal filaments from flying around and affecting the production environment; the pull-out box is used to collect foreign objects for easy cleaning.

[0013] In this utility model, the first fixed frame, the second fixed frame, and the third fixed frame are all frame structures, which are used to install the material distribution pipe, the guide plate, and the collection net corresponding to each fixed frame.

[0014] Preferably, the lower part of the silo has an inverted conical structure with a discharge port at the bottom; a discharge valve is provided at the discharge port of the silo. The inverted conical structure of the lower part of the silo can prevent material residue from remaining at the bottom of the silo.

[0015] Preferably, the polymer granulation abnormal stringing separation device further includes a material storage bin; the feeding pipe, the material storage bin, and the material distributor are connected in sequence; the discharge port of the bin is connected to the material storage bin through a material conveying pipe. By setting up the material conveying pipe, the material can be cyclically separated and removed for abnormal stringing, further ensuring the effectiveness of abnormal stringing separation and removal.

[0016] In this invention, both the feeding pipe and the material conveying pipe are conventional negative pressure conveying pipes. In actual applications, those skilled in the art can choose according to their needs, as long as negative pressure conveying can be achieved.

[0017] In this invention, the silo, material distributor, foreign matter collection box, and wind direction regulator are all made of stainless steel, which is resistant to high temperature and corrosion and does not affect the understanding of this invention by those skilled in the art.

[0018] Due to the application of the above technical solutions, the beneficial effects of this utility model compared to the prior art are as follows: The separation device of this utility model can separate and remove abnormal stringiness that occurs during the drying, cooling, and homogenization processes of materials without interrupting production granulation, avoiding contamination of the entire batch of materials due to stringiness, eliminating the need for machine shutdown for cleaning, effectively improving production efficiency and ensuring product quality; furthermore, by setting a material distribution pipe with a flat, open discharge port, in conjunction with a variable frequency fan and a foreign matter collection box, the material can fall evenly and smoothly, ensuring that the airflow generated by the variable frequency fan can contact each material particle, avoiding material accumulation that affects the separation and removal effect of abnormal stringiness; in addition, by setting an airflow regulator at the air outlet of the variable frequency fan, the airflow direction can be adjusted to further ensure the separation and removal effect of abnormal stringiness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a polymer granulation abnormal drawing and separation device.

[0020] Figure 2 This is a schematic diagram of the material distributor.

[0021] Figure 3 This is a structural diagram of a foreign object collection box.

[0022] Figure 4This is a schematic diagram of the wind direction regulator.

[0023] The components include: 1. Feeding pipe; 2. Hopper; 3. Airflow regulator; 4. Material storage bin; 5. Material distributor; 6. Variable frequency fan; 7. Foreign object collection box; 8. Discharge valve; 9. Material conveying pipe; 301. Second fixed frame; 302. Guide plate; 501. First fixed frame; 502. Material distribution pipe; 701. Third fixed frame; 702. Collection net; 703. Pull-out box; 5021. Main pipe; 5022. Discharge pipe. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and preferred embodiments. All components in this utility model are existing products, and the specific connection methods and control methods are conventional technologies.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0026] The terms "first," "second," "third," etc., in the specification, claims, or accompanying drawings of this utility model are used to distinguish different objects, rather than to describe a specific order. Example 1

[0027] like Figures 1 to 4 As shown: A polymer granulation abnormal fiber separation device includes a feeding pipe 1, a hopper 2, an airflow regulator 3, a material storage bin 4, and an abnormal fiber separation mechanism. The abnormal fiber separation mechanism includes a material distributor 5, a variable frequency fan 6, and a foreign matter collection box 7. The material distributor is located below the outlet of the feeding pipe. The material distributor includes a first fixed frame 501 and a material distribution pipe 502. The material distribution pipe is inclined within the first fixed frame. The outlet of the material distribution pipe has a flat, open structure. The variable frequency fan and the foreign matter collection box are located on both sides of the material distributor and below the outlet of the material distribution pipe. The material distributor is connected to the hopper.

[0028] In this embodiment, the outer wall of the silo is provided with conventional flame-retardant insulation cotton to maintain the temperature of the silo and materials, prevent condensation, and ensure smooth subsequent conveying and packaging without affecting the understanding of the technical effects of this utility model by those skilled in the art.

[0029] In this embodiment, the variable frequency fan is a variable frequency fan with explosion-proof function.

[0030] The material distribution pipe includes a main pipe 5021 and a discharge pipe 5022; the discharge pipe has a flat, open structure and is connected to the main pipe. In this embodiment, the discharge pipe consists of four guide plates, one of which is rotatably mounted on the main pipe, while the other guide plates are fixedly mounted on the main pipe, forming a flat, open structure with an adjustable opening size. The guide plate rotatably mounted on the main pipe is installed on the main pipe via a conventional rotating shaft and a locking device. In practical applications, other conventional rotating connection methods can also be used, as long as the opening size of the flat, open structure can be adjusted, without affecting the understanding of this utility model by those skilled in the art.

[0031] The airflow regulator is located at the air outlet of the variable frequency fan. The airflow regulator includes a second fixed frame 301 and a guide plate 302 rotatably mounted on the second fixed frame. The guide plate is mounted on the second fixed frame via a conventional rotating shaft and a locking device. In practical applications, other conventional rotating connection methods can also be used, as long as the airflow direction can be adjusted, without affecting the understanding of this utility model by those skilled in the art.

[0032] The foreign object collection box includes a third fixed frame 701 and a collection net 702; the collection net is located on the third fixed frame away from the variable frequency fan. The aperture of the collection net is [not specified]. A pull-out box 703 is provided inside the foreign object collection box. Preferably, the lower part of the hopper has an inverted conical structure with a discharge port at the bottom; a discharge valve 8 is provided at the discharge port of the hopper. The feeding pipe, the material temporary storage bin, and the material distributor are connected in sequence; the discharge port of the hopper is connected to the material temporary storage bin through a material conveying pipe 9.

[0033] The first fixed frame, the second fixed frame, and the third fixed frame are all frame structures, used to install the material distribution pipe, guide plate, and collection net corresponding to each fixed frame.

[0034] In this invention, both the feeding pipe and the material conveying pipe are conventional negative pressure conveying pipes. In actual applications, those skilled in the art can choose according to their needs, as long as negative pressure conveying can be achieved.

[0035] In this invention, the silo, material distributor, foreign matter collection box, and wind direction regulator are all made of stainless steel, which is resistant to high temperature and corrosion and does not affect the understanding of this invention by those skilled in the art. Example 2

[0036] Based on Example 1, the difference in this example is that the wind direction regulator is omitted, while the rest is the same. Example 3

[0037] Based on Example 1, the difference in this example is that the 3mm aperture collection net is adjusted to a 5mm aperture collection net, while the rest remains the same. Application Example 1

[0038] The polymer granulation abnormal fiber separation device of Example 1 was used to process 50 kg of polyolefin particles. The main working process of the polymer granulation abnormal fiber separation device is as follows: the polyolefin particles pass through the feeding pipe and the material storage bin in sequence, and fall into the material distributor. The polyolefin particles fall through the material distribution pipe, and the variable frequency fan generates airflow to blow the abnormal fibers and powder in the polyolefin particles into the foreign matter collection box. The polyolefin particles fall into the silo and are then transported to the outside. Manual inspection of all polyolefin particles processed in this application example revealed no abnormal fiber phenomena in the particles. Application Example 2

[0039] The polymer granulation abnormal stringing separation device of Example 1 was used to process 150 kg of polyolefin particles. The main working process of the polymer granulation abnormal stringing separation device is as follows: the polyolefin particles pass through the feeding pipe and the material storage bin in sequence, and fall into the material distributor. The polyolefin particles fall through the material distribution pipe, and the variable frequency fan generates airflow to blow the abnormal strings and powder in the polyolefin particles into the foreign matter collection box. The polyolefin particles fall into the hopper, completing one abnormal stringing separation and removal. The material conveying pipe transports the polyolefin particles after the abnormal stringing is removed to the material storage bin, where another abnormal stringing separation and removal is performed. The processed polyolefin particles fall into the hopper and are then transported to the outside. Manual inspection of all polyolefin particles processed in this application example revealed no abnormal stringing in the particles. Comparative Example

[0040] Based on Example 1, the difference in this comparative example is that the material distributor is omitted, while the rest remains the same. Referring to the processing procedure of Application Example 1, the apparatus of this comparative example was used to process 50 kg of polyolefin particles produced in the same batch as in Application Example 1. All polyolefin particles after processing were manually inspected, and abnormal stringiness was visible to the naked eye among the particles.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered to fall within the protection scope of the present utility model.

Claims

1. A polymer granulation abnormal drawing and separation device, characterized in that: The device includes a feeding pipe, a hopper, and an abnormal fiber separation mechanism. The abnormal fiber separation mechanism includes a material distributor, a variable frequency fan, and a foreign matter collection box. The material distributor is located below the outlet of the feeding pipe. The material distributor includes a first fixed frame and a material distribution pipe. The material distribution pipe is inclined within the first fixed frame. The outlet of the material distribution pipe has a flat, open structure. The variable frequency fan and the foreign matter collection box are located on both sides of the material distributor, below the outlet of the material distribution pipe. The material distributor is connected to the hopper.

2. The polymer granulation abnormal drawing separation device according to claim 1, characterized in that: The material distribution pipe includes a main pipe and a discharge pipe; the discharge pipe has a flat, open structure and is connected to the main pipe.

3. The polymer granulation abnormal drawing separation device according to claim 2, characterized in that: The flat, open structure is a flat, open structure with an adjustable opening size.

4. The polymer granulation abnormal drawing separation device according to claim 1, characterized in that: The variable frequency fan is equipped with a wind direction regulator at its air outlet.

5. The polymer granulation abnormal drawing separation device according to claim 4, characterized in that: The wind direction regulator includes a second fixed frame and a guide plate rotatably mounted on the second fixed frame.

6. The polymer granulation abnormal drawing separation device according to claim 1, characterized in that: The foreign object collection box includes a third fixed frame and a collection net; the collection net is located on the side of the third fixed frame away from the variable frequency fan.

7. The polymer granulation abnormal drawing separation device according to claim 6, characterized in that: The aperture of the collecting net is 3~8mm.

8. The polymer granulation abnormal drawing separation device according to claim 6, characterized in that: The foreign object collection box is equipped with a pull-out box.

9. The polymer granulation abnormal drawing separation device according to claim 1, characterized in that: The lower part of the hopper has an inverted cone shape and a discharge port at the bottom; a discharge valve is provided at the discharge port of the hopper.

10. The polymer granulation abnormal drawing separation device according to claim 9, characterized in that: The polymer granulation abnormal drawing separation device also includes a material temporary storage bin; the feeding pipe, the material temporary storage bin, and the material distributor are connected in sequence; the discharge port of the bin is connected to the material temporary storage bin through the material conveying pipe.

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