A granulator dust extraction device

Abstract

The utility model discloses a granulator dust collector, including the granulator body, the support frame is fixedly installed to the outer wall of the frame of granulator body, the top fixed mounting of support frame has the air inlet cover, and the air inlet cover is located the feeding cylinder right above the granulator body, the top fixed penetration of air inlet cover has the installation pipe, the inner top sealed butt joint of installation pipe has the screen assembly, the bottom limiting insertion of screen assembly has the assembling pipe. In the utility model, through setting up the support frame, the air inlet cover, the installation pipe, the screen assembly, the assembling pipe, the air draught fan and the manual lifting component, the reasonable setting of air inlet cover expands the air inlet coverage area, can fully absorb the large -scale dust of raw material dumping and produce, ensures good dust fall effect, simultaneously, through setting up the manual lifting component, can assist reducing the height of screen assembly and air draught fan, makes equipment maintenance more convenient, and still can make the replacement operation of screen assembly more convenient.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and in particular to a dust removal device for granulators. Background Technology

[0002] A granulator is a mechanical device used for processing materials such as plastics and rubber. It extrudes molten material through a screw, which is then directly cut into granules by rotating blades at high temperatures. The granules are then rapidly cooled and solidified by an air-cooling or water-cooling system, ultimately producing uniform granules. This equipment is characterized by high efficiency, continuous operation, energy saving, and uniform granule production. It is widely used in plastic recycling, chemical granulation, and rubber processing, and is one of the key pieces of equipment in polymer material processing.

[0003] Currently, PE particles on the market require the use of granulators for auxiliary processing during the preparation process.

[0004] A dust removal device for a screw extruder granulator, with prior art announcement number CN222246003U, includes an extruder body with a feed inlet, a working pad connected to the extruder body via a fixing component, an adjusting pad fixedly connected to the working pad, and a dust removal working box connected to the adjusting pad via a rotating component.

[0005] Although the device can adjust the dust removal equipment, there are two main problems in practical application: First, the air inlet size is small, resulting in insufficient actual air intake coverage and insufficient air volume, which cannot effectively cover the large-scale dust overflow generated when the raw materials are poured, thus affecting the dust removal effect; Second, the overall height of the equipment is relatively high, especially the feeding cylinder and the integrated filter screen above it are installed too high, making the replacement of the dust collection filter screen very inconvenient.

[0006] Therefore, improvements are proposed. Utility Model Content

[0007] This utility model is a dust removal device for granulators proposed to overcome the shortcomings of existing technologies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a dust removal device for a granulator, comprising a granulator body, a support frame fixedly installed on the outer wall of the frame of the granulator body, an air inlet hood fixedly installed at the top of the support frame, and the air inlet hood being located directly above the feed cylinder of the granulator body, an installation pipe fixedly penetrating the top of the air inlet hood, a filter screen assembly sealingly abutting the top of the installation pipe, an assembly pipe being inserted into the bottom of the filter screen assembly, and an induced draft fan fixedly installed at the bottom of the assembly pipe;

[0009] A manual lifting assembly is installed between the induced draft fan and the support frame.

[0010] Furthermore, the mounting pipe includes a fixing pipe, which is fixedly installed on the top of the air inlet hood and communicates with the air inlet hood. A horn pipe is fixedly connected to the other end of the fixing pipe.

[0011] Furthermore, the filter assembly includes an annular outer frame, which is sealed against the inner top wall of the horn tube. A dust collection filter is fixedly installed on the inner surface of the annular outer frame, and multiple positioning rods are fixedly installed on the bottom of the annular outer frame. The dust collection filter has a filtering effect.

[0012] Furthermore, the top of the assembly tube is provided with multiple positioning grooves, and the positioning grooves match the positioning rods. The positioning grooves and positioning rods cooperate to facilitate the positioning and installation of the filter assembly.

[0013] Furthermore, the manual lifting assembly includes a handwheel, which is fitted to the bottom of the support frame. A screw is fixedly connected to the top of the handwheel, and the screw passes through the support frame and is rotatably connected to the support frame. A mounting seat is threaded onto the outer surface of the screw, and the induced draft fan is fixedly installed inside the mounting seat, enabling manual driving of components such as the induced draft fan to descend.

[0014] Furthermore, guide rods are slidably connected to both outer walls of the mounting base, and the guide rods are fixedly connected to the support frame. The guide rods guide the mounting base and ensure the stability of the mounting base's movement.

[0015] Furthermore, a protective net is fixedly connected to the bottom opening of the induced draft fan, which provides protection and increases the safety of the induced draft fan during use.

[0016] The beneficial effects of this utility model are:

[0017] In use, this utility model provides a dust removal device for a granulator. Through the design of a support frame, air inlet hood, mounting pipe, filter assembly, assembly pipe, induced draft fan, and manual lifting assembly, the air inlet hood's reasonable arrangement expands the air inlet coverage area, effectively absorbing the large-scale dust generated during raw material dumping and ensuring good dust reduction. Simultaneously, the manual lifting assembly helps lower the height of the filter assembly and induced draft fan, making equipment maintenance more convenient and facilitating filter assembly replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1: Front view of this utility model;

[0020] Figure 2 Partial perspective view of this utility model;

[0021] Figure 3 : Schematic diagram of the installation of the induced draft fan and assembly pipe of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Granulator body; 2. Air inlet hood; 3. Fixed pipe; 4. Horn pipe; 5. Mounting base; 6. Support frame; 7. Screw; 8. Guide rod; 9. Handwheel; 10. Positioning rod; 11. Annular outer frame; 12. Assembly pipe; 13. Dust collection filter; 14. Protective net; 15. Exhaust fan; 16. Positioning groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 3 As shown, a dust removal device for a granulator is disclosed, comprising a granulator body 1. A support frame 6 is fixedly installed on the outer wall of the frame of the granulator body 1. An air inlet hood 2 is fixedly installed on the top of the support frame 6, and the air inlet hood 2 is located directly above the feed cylinder of the granulator body 1. The distance between the air inlet hood 2 and the top of the feed cylinder should meet the normal material addition requirements of the feed cylinder to avoid affecting material addition. An installation pipe is fixedly connected to the top of the air inlet hood 2. The installation pipe includes a fixing pipe 3, and the fixing pipe 3 is fixedly installed on the top of the air inlet hood 2 and communicates with the air inlet hood 2. A horn pipe 4 is fixedly connected to the other end of the fixing pipe 3.

[0026] The top of the mounting tube is sealed against a filter assembly, and the bottom of the filter assembly is limited by an assembly tube 12. The filter assembly includes an annular outer frame 11, which is sealed against the top wall of the horn tube 4. Annular rubber rings are fixedly connected to the top and bottom of the annular outer frame 11 to ensure the sealing of the annular outer frame 11 after installation. A dust collection filter 13 is fixedly installed on the inner surface of the annular outer frame 11. Multiple positioning rods 10 are fixedly installed at the bottom of the annular outer frame 11. Multiple positioning grooves 16 are opened at the top of the assembly tube 12, and the positioning grooves 16 match the positioning rods 10. The positioning grooves 16 and positioning rods 10 cooperate to achieve rapid installation of the annular outer frame 11, thereby achieving rapid installation of the dust collection filter 13.

[0027] An induced draft fan 15 is fixedly installed at the bottom of the assembly pipe 12. A protective net 14 is fixedly connected to the bottom opening of the induced draft fan 15 to prevent foreign objects from entering the interior of the induced draft fan 15.

[0028] A manual lifting assembly is installed between the induced draft fan 15 and the support frame 6. The manual lifting assembly includes a handwheel 9, which is fitted against the bottom of the support frame 6. A screw 7 is fixedly connected to the top of the handwheel 9, and the screw 7 passes through the support frame 6 and is rotatably connected to the support frame 6. A mounting seat 5 is threaded onto the outer surface of the screw 7, and the induced draft fan 15 is fixedly installed inside the mounting seat 5. Guide rods 8 are slidably connected to both outer walls of the mounting seat 5, and the guide rods 8 are fixedly connected to the support frame 6. A rubber pad is installed above the handwheel 9, and the rubber pad abuts against the support frame 6 to increase the rotation resistance of the handwheel 9 and prevent the handwheel 9 from rotating due to vibration or other reasons when there is no external driving force.

[0029] Working principle: The dust removal device of this granulator creates a negative pressure dust collection environment inside the air inlet hood 2 through the induced draft fan 15. When the raw material is poured from the feed cylinder, the diffused dust is effectively captured by the large-opening air inlet hood 2. The dust-laden airflow is guided by the fixed pipe 3 and the horn pipe 4, and then filtered through the dust collection filter screen 13. The purified air is discharged by the induced draft fan 15, while the protective net 14 prevents foreign objects from entering the fan, ensuring the safe operation of the device.

[0030] The device employs a manual lifting assembly for convenient maintenance. By turning the handwheel 9, the height of the mounting base 5, the induced draft fan 15, the assembly pipe 12, and the filter assembly can be adjusted through the cooperation of the screw 7 and the guide rod 8. The matching design of the positioning rod 10 and the positioning groove 16 allows for quick alignment of the filter assembly during replacement. Combined with the sealing structure of the annular outer frame 11, filter replacement can be completed quickly, significantly improving maintenance efficiency. At the same time, the optimized height design makes daily cleaning and inspection more convenient.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for a granulator, comprising a granulator body (1), characterized in that: A support frame (6) is fixedly installed on the outer wall of the frame of the granulator body (1). An air inlet hood (2) is fixedly installed on the top of the support frame (6), and the air inlet hood (2) is located directly above the feed cylinder of the granulator body (1). An installation pipe is fixedly connected to the top of the air inlet hood (2). A filter assembly is sealed and abutted against the top of the installation pipe. An assembly pipe (12) is inserted into the bottom of the filter assembly. An induced draft fan (15) is fixedly installed at the bottom of the assembly pipe (12). A manual lifting assembly is installed between the induced draft fan (15) and the support frame (6).

2. The dust removal device for a granulator according to claim 1, characterized in that: The mounting pipe includes a fixing pipe (3), which is fixedly installed on the top of the air inlet hood (2) and communicates with the air inlet hood (2). The other end of the fixing pipe (3) is fixedly connected to a horn pipe (4).

3. The dust removal device for a granulator according to claim 2, characterized in that: The filter assembly includes an annular outer frame (11), and the annular outer frame (11) is sealed against the inner top wall of the horn tube (4). A dust collection filter (13) is fixedly installed on the inner surface of the annular outer frame (11), and a plurality of positioning rods (10) are fixedly installed on the bottom of the annular outer frame (11).

4. The dust removal device for a granulator according to claim 3, characterized in that: The top of the assembly tube (12) is provided with multiple positioning grooves (16), and the positioning grooves (16) are matched with the positioning rods (10).

5. The dust removal device for a granulator according to claim 1, characterized in that: The manual lifting assembly includes a handwheel (9), which is fitted to the bottom of the support frame (6). A screw (7) is fixedly connected to the top of the handwheel (9), and the screw (7) passes through the support frame (6) and is rotatably connected to the support frame (6). A mounting seat (5) is threaded onto the outer surface of the screw (7), and the induced draft fan (15) is fixedly installed on the inner side of the mounting seat (5).

6. A dust removal device for a granulator according to claim 5, characterized in that: Guide rods (8) are slidably connected to both outer walls of the mounting base (5), and the guide rods (8) are fixedly connected to the support frame (6).

7. A dust removal device for a granulator according to claim 1, characterized in that: A protective net (14) is fixedly connected to the bottom opening of the induced draft fan (15).

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