A dual-circulation air duct structure for a pellet mill

Abstract

This utility model relates to the field of textile machinery technology, specifically disclosing a dual-circulation air duct structure for a granulator, including a housing. Inside the housing are an upper granulator cover and a lower granulator cover, with an upper granulator and a lower granulator respectively housed inside the upper and lower granulator covers. A circulation air outlet duct is provided on the front side of the housing. Upper and lower circulation air outlets, respectively, are provided on the outer walls of the upper and lower granulator covers, communicating with the circulation air outlet duct. A circulation air inlet duct is provided on the rear side of the housing. A radiator is installed on the upper end face of the housing. This utility model, through a dual-circulation fan system combined with an independent upper and lower air duct design, forms a bidirectional hot air circulation, ensuring uniform distribution of hot air and direct application to the inside of the granulator, significantly improving drying uniformity. Simultaneously, the closed-loop circulation structure improves heat energy utilization and effectively reduces energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and specifically discloses a dual-circulation air duct structure for a pellet mill. Background Technology

[0002] The tasseling mill is a key piece of equipment in textile finishing, used to tassel and dry the surface of fabrics. There are two existing drying methods for tasseling mills: one is to heat external air through a radiator or natural gas combustion chamber before sending it into the tasseling mill; the other is to guide the air inside the tasseling mill to a radiator or natural gas combustion chamber, reheat it, and then send it into the tasseling mill.

[0003] Because the sizing drum of a circulating sizing machine is a long cylinder, the above two methods make it difficult to ensure that the fabric inside the sizing machine is heated evenly, which affects the finished product quality. Therefore, a dual-circulation air duct structure for the sizing machine is needed to solve this problem. Utility Model Content

[0004] This utility model proposes a dual-circulation air duct structure for a granulator. Through the optimized design of the dual-circulation air duct structure and detachable filter components, the granulator achieves high-efficiency energy-saving drying, uniform heating, and convenient maintenance, significantly improving production efficiency and product quality.

[0005] This utility model is implemented as follows: a dual-circulation air duct structure for a granulator includes a housing. Inside the housing are an upper granulator cover and a lower granulator cover, each containing an upper and lower granulator. A circulation air outlet is located on the front side of the housing. The outer walls of the upper and lower granulator covers are respectively provided with an upper circulation air outlet and a lower circulation air outlet communicating with the circulation air outlet. A circulation air inlet is located on the rear side of the housing. A radiator is installed on the upper end face of the housing. Two circulation fans with air outlets communicating with the radiator are installed on the upper end face of the housing. The air inlets of the circulation fans are connected to the circulation air inlet. Two inclined filter components are detachably connected inside the circulation air inlet via a snap-fit ​​mechanism. A cleaning mechanism is provided on the outer wall of each filter component.

[0006] As a preferred embodiment of the dual-circulation air duct structure of the granulator of this utility model, the locking mechanism includes a fixed frame fixedly connected to the inner wall of the circulation air inlet duct. The inner wall of the fixed frame is provided with a filter screen body. The filter screen body includes a frame and a filter screen. Sliding grooves are provided at the four corners of the outer wall of the frame. A first locking rod is slidably connected to the inner wall of the sliding groove. A first locking hole matching the first locking rod is provided through the outer wall of the fixed frame. A first spring is provided inside the sliding groove.

[0007] In a preferred embodiment of the dual-circulation air duct structure of the granulator of this utility model, the cleaning mechanism includes two limiting frames fixedly connected to the outer wall of the frame. A portal frame is slidably connected to the inner wall of the two limiting frames. A cleaning brush that abuts against the filter body is provided on the inner wall of the portal frame. A cavity is opened inside the portal frame. Two second limiting rods are fixedly connected to the inner wall of the cavity. Slide plates are slidably connected to both ends of the outer wall of the two second limiting rods. Second locking rods extending to the outside of the portal frame are fixedly connected to the outer walls of the two slide plates. A second locking hole matching the second locking rod is opened through the outer wall of the limiting frame. A second spring located between the two slide plates is sleeved on the outer wall of the two second limiting rods. A rotating shaft is rotatably connected inside the portal frame. Two pull ropes fixedly connected to the outer wall of the rotating shaft are respectively fixedly connected to the two slide plates.

[0008] As a preferred embodiment of the dual-circulation air duct structure of the granulator of this utility model, the inner wall of the limiting frame is fixedly connected with a first limiting rod that is slidably connected to the gantry frame.

[0009] In a preferred embodiment of the dual-circulation air duct structure of the granulator of this utility model, one end of the rotating shaft extends to the outside of the gantry frame and is fixedly connected with a handle.

[0010] As a preferred embodiment of the dual-circulation air duct structure of the granulator of this utility model, the outer wall of the shell is provided with a sealing door that communicates with the circulation air inlet duct.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses a dual-circulation fan system combined with an independent upper and lower air duct design to form a two-way hot air circulation, so that the hot air is evenly distributed and directly acts on the inside of the shaking drum, which significantly improves the drying uniformity. At the same time, the closed circulation structure improves the heat energy utilization rate and effectively reduces energy consumption.

[0013] 2. The quick-connect filter components and integrated cleaning mechanism enable convenient disassembly and online cleaning of the filter screen, greatly simplifying the maintenance process and effectively preventing lint accumulation, ensuring long-term stable operation of the equipment. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is an overall structural diagram of a dual-circulation air duct structure for a granulator according to the present invention.

[0016] Figure 2 This is a front view of a dual-circulation air duct structure for a pellet mill according to this utility model.

[0017] Figure 3 This is a right view of a dual-circulation air duct structure for a pellet mill according to this utility model.

[0018] Figure 4 This is a structural diagram of the filter assembly of this utility model.

[0019] Figure 5 This is an exploded view of the filter assembly of this utility model.

[0020] Figure 6 This is a sectional view of the portal frame of this utility model.

[0021] Figure 7 This is a cross-sectional view of the filter body of this utility model.

[0022] Figure 8 This utility model Figure 7 Enlarged view of point A in the middle.

[0023] The markings in the diagram are: 1. Housing; 2. Radiator; 3. Circulating fan; 4. Lower circulating air outlet; 5. Circulating air duct; 6. Upper circulating air outlet; 7. Upper granulator cover; 8. Filter assembly; 801. Fixing frame; 802. Filter body; 803. Limiting frame; 804. First limiting rod; 805. Gate frame; 806. Cleaning brush; 807. Slide groove; 808. First locking rod; 809. First spring; 810. First locking hole; 811. Cavity; 812. Second limiting rod; 813. Slide plate; 814. Second locking rod; 815. Second locking hole; 816. Second spring; 817. Rotating shaft; 818. Pull rope; 819. Handle; 9. Upper granulator; 10. Circulating air inlet duct; 11. Lower granulator cover; 12. Lower granulator. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0025] Please see Figure 1-8A dual-circulation air duct structure for a granulator includes a housing 1. Inside the housing 1, there is an upper granulator cover 7 and a lower granulator cover 11. Inside the upper granulator cover 7 and the lower granulator cover 11, there are an upper granulator 9 and a lower granulator 12, respectively. A circulation air outlet 5 is provided on the front side inside the housing 1. The outer walls of the upper granulator cover 7 and the lower granulator cover 11 are respectively provided with an upper circulation air outlet 6 and a lower circulation air outlet 4 communicating with the circulation air outlet 5. A circulation air inlet duct 10 is provided on the rear side inside the housing 1. A radiator 2 is installed on the upper end face of the housing 1. Two circulation fans 3 with air outlets communicating with the radiator 2 are installed on the upper end face of the housing 1. The air inlets of the circulation fans 3 are connected to the circulation air inlet duct 10. Inside the circulation air inlet duct 10, there are two inclined filter components 8 detachably connected by a snap-fit ​​mechanism. The outer wall of the filter components 8 is provided with a cleaning mechanism.

[0026] In this embodiment: the present invention uses a dual-circulation fan 3 to draw air from inside the granulator, and after reheating, the air enters the upper granulator cover 7 and the lower granulator cover 11 respectively to form a dual-circulation airflow, so that the hot air is blown directly into the inside of the granulator, and then enters the air inlet of the circulating fan 3 from both ends and the bottom of the granulator to realize hot air circulation. This hot air circulation method saves heating energy consumption and reduces the fabric waste rate caused by temperature difference. In addition, the detachable filter assembly 8 can filter and clean the fluff in the device, providing a solid guarantee for the stability of the product.

[0027] As a technical optimization of this utility model, the snap-fit ​​mechanism includes a fixed frame 801 fixedly connected to the inner wall of the circulating air inlet duct 10. The inner wall of the fixed frame 801 is provided with a filter body 802. The filter body 802 includes a frame and a filter. Slide grooves 807 are provided at the four corners of the outer wall of the frame. A first snap rod 808 is slidably connected to the inner wall of the slide groove 807. A first snap hole 810 matching the first snap rod 808 is provided through the outer wall of the fixed frame 801. A first spring 809 is provided inside the slide groove 807.

[0028] In this embodiment: When disassembling the filter body 802, press the first locking rod 808 inward to disengage it from the first locking hole 810, thus removing the filter body 802 for easy cleaning; during installation, press the first locking rod 808 inward and compress the first spring 809 to install the filter body 802 in the corresponding slot of the fixing frame 801, aligning the first locking rod 808 with the first locking hole 810. At this time, under the elastic force of the first spring 809, the first locking rod 808 engages in the first locking hole 810, fixing the filter body 802, making installation and disassembly convenient.

[0029] As a technical optimization of this utility model, the cleaning mechanism includes two limiting frames 803 fixedly connected to the outer wall of the frame. A portal frame 805 is slidably connected to the inner wall of the two limiting frames 803. A cleaning brush 806, which abuts against the filter body 802, is provided on the inner wall of the portal frame 805. A cavity 811 is opened inside the portal frame 805. Two second limiting rods 812 are fixedly connected to the inner wall of the cavity 811. Slide plates 813 are slidably connected to both ends of the outer walls of the two second limiting rods 812. The outer walls of the two opposing slide plates 813 are fixedly connected with second locking rods 814 extending to the outside of the gantry frame 805. The outer wall of the limiting frame 803 is provided with a second locking hole 815 that matches the second locking rod 814. The outer walls of the two second limiting rods 812 are fitted with second springs 816 located between the two slide plates 813. The gantry frame 805 is rotatably connected to a rotating shaft 817. The outer wall of the rotating shaft 817 is fixedly connected with two pull ropes 818 that are respectively fixedly connected to the two slide plates 813.

[0030] In this embodiment: when cleaning the filter body 802, the handle 819 rotates the shaft 817, which in turn pulls the two slide plates 813 relative to each other via the pull rope 818, compressing the second spring 816 and causing the two second locking rods 814 to disengage from the second locking holes 815. Then, the handle 819 pushes the gantry frame 805 to slide back and forth along the limiting frame 803, thereby driving the cleaning brush 806 to move back and forth to clean the lint filtered out on the filter body 802. After cleaning, the second locking rods 814 are aligned with the second locking holes 815, and the handle 819 is released. Under the elastic force of the second spring 816, the second locking rods 814 are locked into the second locking holes 815, thus fixing the gantry frame 805. Cleaning the filter body 802 is convenient.

[0031] As a technical optimization of this utility model, the inner wall of the limiting frame 803 is fixedly connected with a first limiting rod 804 that is slidably connected to the portal frame 805.

[0032] In this embodiment: the first limiting rod 804 facilitates the limiting of the gantry frame 805, so that the movement of the gantry frame 805 is stable.

[0033] As a technical optimization of this utility model, one end of the rotating shaft 817 extends to the outside of the gantry frame 805 and is fixedly connected to a handle 819.

[0034] In this embodiment, a handle 819 is fixedly connected to one end of the rotating shaft 817 to facilitate the rotation of the rotating shaft 817.

[0035] As a technical optimization of this utility model, the outer wall of the housing 1 is provided with a sealing door that is connected to the circulating air inlet duct 10.

[0036] In this embodiment, a sealing door communicating with the circulating air inlet duct 10 is provided on the outer wall of the housing 1, which facilitates the opening of the sealing door to disassemble and clean the filter body 802.

[0037] The working principle of this utility model is as follows: This utility model uses a dual-circulation fan 3 to draw air from inside the granulator. After reheating, the air enters the upper granulator cover 7 and the lower granulator cover 11 respectively to form a dual-circulation airflow, so that the hot air is directly blown into the inside of the granulator. Then, the hot air enters the air inlet of the circulating fan 3 from both ends and the bottom of the granulator to achieve hot air circulation. This hot air circulation method saves heating energy consumption and reduces the fabric waste rate caused by temperature difference. In addition, the detachable filter assembly 8 can filter and clean the fluff inside the device, providing a solid guarantee for the stability of the product.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A dual-circulation air duct structure for a granulator, comprising a shell (1), characterized in that: The housing (1) is internally provided with an upper granulator cover (7) and a lower granulator cover (11). The upper granulator cover (7) and the lower granulator cover (11) are respectively provided with an upper granulator (9) and a lower granulator (12). A circulating air outlet (5) is provided on the front side of the housing (1). The outer walls of the upper granulator cover (7) and the lower granulator cover (11) are respectively provided with an upper circulating air outlet (6) and a lower circulating air outlet (4) communicating with the circulating air outlet (5). A circulating air inlet duct (10) is provided on the rear side inside the housing (1). A radiator (2) is installed on the upper end face of the housing (1). Two circulating fans (3) with air outlets connected to the radiator (2) are installed on the upper end face of the housing (1). The air inlet of the circulating fan (3) is connected to the circulating air inlet duct (10). Two inclined filter components (8) are detachably connected inside the circulating air inlet duct (10) through a snap-fit ​​mechanism. A cleaning mechanism is provided on the outer wall of the filter components (8).

2. The dual-circulation air duct structure of a granulator according to claim 1, characterized in that: The snap-fit ​​mechanism includes a fixed frame (801) fixedly connected to the inner wall of the circulating air inlet duct (10). The inner wall of the fixed frame (801) is provided with a filter body (802). The filter body (802) includes a frame and a filter. Slide grooves (807) are provided at the four corners of the outer wall of the frame. A first locking rod (808) is slidably connected to the inner wall of the slide groove (807). A first locking hole (810) matching the first locking rod (808) is provided through the outer wall of the fixed frame (801). A first spring (809) is provided inside the slide groove (807).

3. The dual-circulation air duct structure of a granulator according to claim 2, characterized in that: The cleaning mechanism includes two limiting frames (803) fixedly connected to the outer wall of the frame. A gate frame (805) is slidably connected to the inner wall of the two limiting frames (803). A cleaning brush (806) is provided on the inner wall of the gate frame (805) to abut against the filter body (802). A cavity (811) is opened inside the gate frame (805). Two second limiting rods (812) are fixedly connected to the inner wall of the cavity (811). Slide plates (813) are slidably connected to both ends of the outer walls of the two second limiting rods (812). The outer walls of the opposing sides are fixedly connected with second locking rods (814) extending to the outside of the portal frame (805). The outer wall of the limiting frame (803) is provided with a second locking hole (815) matching the second locking rod (814). The outer walls of the two second limiting rods (812) are each sleeved with a second spring (816) located between the two sliding plates (813). The portal frame (805) is rotatably connected with a rotating shaft (817). The outer wall of the rotating shaft (817) is fixedly connected with two pull ropes (818) that are respectively fixedly connected to the two sliding plates (813).

4. The dual-circulation air duct structure of a pellet mill according to claim 3, characterized in that: The inner wall of the limiting frame (803) is fixedly connected to a first limiting rod (804) that is slidably connected to the gantry frame (805).

5. The dual-circulation air duct structure of a granulator according to claim 4, characterized in that: One end of the pivot (817) extends to the outside of the gantry (805) and is fixedly connected to a handle (819).

6. The dual-circulation air duct structure of a granulator according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a sealed door that communicates with the circulating air inlet duct (10).

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