Automatic dust removal device for particulate material
Patent Information
- Application Number
- CN202522610406.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-09
AI Technical Summary
然而，上述除尘装置不能除尽粉尘，因此，销售出去的颗粒物料中往往或多或少还存在着粉尘等杂质，对于生产双向拉伸聚酯薄膜来说，需要保证原料的洁净度，从而确保可靠的产品质量，因此，目前所面临的问题是：需要在生产双向拉伸聚酯薄膜的上料阶段进一步进行除尘，而上述的除尘装置如果应用在双向拉伸聚酯薄膜生产线上进行除尘，会降低生产效率，因而，上述除尘装置不适合应用在双向拉伸聚酯薄膜生产线的除尘
[0007]本实用新型使用时，颗粒物料通过进料口进入到第一箱体内后掉落在导流架上，进气的气流通过进气管进入到进气道中后，气流分别通过第一进风口和第二进风口进入到第一箱体内，从第一进风口输入到第一箱体内的气流流过第一通气孔，由于颗粒物料的重量大于粉尘的重量，因此，气流对位于导流架上的颗粒物料由高处向低处推送，粉尘则被气流吹起来并流向回风口，由于颗粒物料会从导流架的输出端处下落到导流板上，从第二进风口输入到容纳腔体内的气流流过第二通气孔，由于颗粒物料的重量大于粉尘的重量，因此，气流对位于导流板上的颗粒物料由高处向低处推送，粉尘则被气流吹起来并流向回风口，进入回风口的气流流入回风道后进入到回风管中。因此，通过上述过程可以除去颗粒物料中的粉尘。
Smart Images
Figure CN224897739U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film production, specifically to an automatic dust removal device for particulate materials. Background Technology
[0002] In the production of granular materials, an extruder is used to extrude plastic into strip-shaped plastic products, which are then cut into granules. After being cut into granules, the granular products often have fine dust adhering to them. Therefore, a dust removal device is used in the production process, which includes a column, a placement basket, and a high-pressure air pump. The placement basket is connected to the column via a connecting rod and can move in a circular motion along the axis of the column. The placement basket is funnel-shaped, with openings with covers on both the upper and lower ends, and the side walls of the placement basket are uniformly formed with air holes communicating with the inside of the basket. The outlet of the high-pressure air pump is directly below the placement basket.
[0003] The aforementioned dust removal device has air holes on the side wall of the placement basket for airflow. Plastic granules are placed inside the basket, and air is blown into the basket. The friction and collision between the plastic granules cause the dust adhering to the granules to detach, achieving a dust removal effect. However, this dust removal device cannot completely remove dust. Therefore, the sold granular materials often still contain some dust and other impurities. For the production of biaxially oriented polyester film, it is necessary to ensure the cleanliness of the raw materials to guarantee reliable product quality. Therefore, the current problem is that further dust removal is needed during the feeding stage of biaxially oriented polyester film production. If the aforementioned dust removal device is used on a biaxially oriented polyester film production line, it will reduce production efficiency. Therefore, the aforementioned dust removal device is not suitable for dust removal on biaxially oriented polyester film production lines. Utility Model Content
[0004] This invention provides an automatic dust removal device for particulate materials, which can remove dust from particulate materials.
[0005] The technical solution to achieve the above objectives is as follows:
[0006] An automatic dust removal device for particulate materials includes a first housing, which has a feed inlet, a discharge outlet, a first air inlet, and a return air inlet. It also includes a guide frame that moves particulate materials from high to low under the action of airflow. The guide frame is located inside and fixed to the first housing. The feed inlet is located above the guide frame, and the guide frame is located above the discharge outlet. The guide frame has several first ventilation holes and a first baffle that prevents particulate materials from falling into the first ventilation holes. A first baffle is positioned above each first ventilation hole, with one end of each first baffle fixed to the guide frame and the other end of each first baffle being a free end.
[0007] In use, the particulate material enters the first chamber through the feed inlet and falls onto the guide frame. The incoming airflow enters the air intake duct through the air intake pipe, and then enters the first chamber through both the first and second air inlets. The airflow entering the first chamber from the first air inlet flows through the first vent. Because the weight of the particulate material is greater than the weight of the dust, the airflow pushes the particulate material on the guide frame from a high position to a low position, while the dust is blown up by the airflow and flows towards the return air inlet. The particulate material falls from the output end of the guide frame onto the guide plate. The airflow entering the receiving cavity from the second air inlet flows through the second vent. Because the weight of the particulate material is greater than the weight of the dust, the airflow pushes the particulate material on the guide plate from a high position to a low position, while the dust is blown up by the airflow and flows towards the return air inlet. The airflow entering the return air inlet flows into the return air duct and then into the return air pipe. Therefore, the dust in the particulate material can be removed through the above process. Attached Figure Description
[0008] Figure 1 This is a perspective view of the present invention in the first direction.
[0009] Figure 2 This is a perspective view of the present invention in the second direction.
[0010] Figure 3 This is a perspective view of the present invention from a third-party perspective.
[0011] Figure 4 This diagram illustrates the flow direction of particulate material and airflow, where solid arrows indicate the flow direction of particulate material and hollow arrows indicate the flow direction of airflow.
[0012] Labels in the attached diagram:
[0013] First housing 1, feed inlet 2, discharge outlet 3, first air inlet 4, return air inlet 5, guide frame 6, first vent 7, first baffle 8, receiving cavity 9, guide plate 10, second air inlet 11, second vent 12, second baffle 13, first cover 14, air inlet pipe 15, air inlet duct 16, second cover 17, return air pipe 18, return air duct 19, third baffle 20, interval space 21, adjustment component 22. Detailed Implementation
[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, 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, and therefore should not be construed as a limitation of this utility model.
[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0017] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0018] like Figures 1 to 4 As shown, the automatic dust removal device for particulate materials of this utility model includes a first housing 1 (for easy viewing of the internal structure, in...). Figures 1 to 4In this embodiment, the front panel of the first housing 1 is hidden, and the flow guide 6 is provided. The first housing 1 is provided with a feed inlet 2, a discharge outlet 3, a first air inlet 4, and a return air inlet 5. The feed inlet 2 is located at the top of the first housing 1, the discharge outlet 3 is located at the bottom of the first housing 1, the first air inlet 4 is located at the back of the first housing 1, and there are multiple return air inlets 5. In this embodiment, one return air inlet is preferably provided on the left side and one on the right side of the first housing 1.
[0019] The flow guide 6 is located inside and fixed to the first housing 1. At least a portion of the flow guide 6 is located above the first air inlet 4. The flow guide 6 is an annular body formed by thin plates, and its cross-section is polygonal. The flow guide 6 surrounds the outlet of the first air inlet 4. The feed inlet 2 is located above the flow guide 6, and the flow guide 6 is located above the discharge outlet 3. The upper surface of the flow guide 6 is sloping. Under the action of airflow, the particulate material moves from high to low on the flow guide 6. When the particulate material falls off the flow guide 6, it falls towards the discharge outlet 3. In this embodiment, in order to make the airflow flow to the upper surface of the flow guide 6 and apply force to the particulate material, a plurality of first ventilation holes 7 are provided on the flow guide 6. The airflow output from the vent 4 passes through the first vent 7. The guide frame 6 is also equipped with a first baffle 8 to prevent particulate material from falling into the first vent 7. A first baffle 8 is arranged above each first vent 7. One end of each first baffle 8 is fixed to the guide frame 6, and the other end of each first baffle 8 is a free end. An angle is formed between the first baffle 8 and the upper surface of the guide frame 6. This angle is less than 20°. Therefore, the first baffle 8 also has the function of guiding the airflow. When the airflow is output from the first vent 7, the first baffle 8 forces the airflow to change its direction, so that the airflow can act on the surface of the particulate material, which is equivalent to applying a thrust to the particulate material, causing the particulate material to move from a high place to a low place on the guide frame 6.
[0020] This utility model also includes a guide plate 10 that guides the granular material falling from the guide frame 6 to the discharge port 3. The guide plate 10 is located inside the first housing 1 and fixed to the first housing 1. The output end of the guide plate 10 is matched with the input port of the discharge port 3. The guide plate 10 is located below the guide frame 6.
[0021] To further remove dust from the material on the guide plate 10 and accelerate the movement of particulate material on the guide plate 10, the first housing 1 is also provided with a second air inlet 11, forming a receiving cavity 9 between the guide plate 10 and the first housing 1. The receiving cavity 9 cooperates with the second air inlet 11. The guide plate 10 is provided with a plurality of second ventilation holes 12, and the guide plate 10 is also provided with second baffles 13 to prevent particulate material from falling into the second ventilation holes 12. A second baffle 13 is arranged above each second ventilation hole 12. One end of each second baffle 13 is fixed to the guide plate 10, and the other end of each second baffle 13 is a free end.
[0022] This utility model also includes a first cover 14 and an air inlet pipe 15. The first cover 14 is located outside the first housing 1 and fixed to the first housing 1. An air inlet channel 16 is formed between the first cover 14 and the first housing 1, covering the first air inlet 4 and the second air inlet 11. The air inlet pipe 15 is fixed to the first cover 14 and communicates with the air inlet channel 16. By forming the air inlet channel 16 between the first cover 14 and the first housing 1, only one air inlet pipe 15 needs to be set. After the airflow output from the air inlet pipe 15 enters the air inlet channel 16, the airflow flows to the first air inlet 4 and the second air inlet 11 respectively. This eliminates the need for multiple air inlet pipes 15, simplifying the structure of the dust removal device.
[0023] This utility model also includes a second cover 17 and a return air duct 18. The second cover 17 is located outside the first housing 1 and fixed to the first housing 1. A return air duct 19 is formed between the second cover 17 and the first housing 1. The return air duct 18 is fixed to the second cover 17 and communicates with the return air duct 19. Since there are multiple return air inlets 5, the second cover 17 covers each of the multiple return air inlets 5. This eliminates the need for multiple return air ducts 18, simplifying the structure of the dust removal device.
[0024] This utility model also includes a third baffle 20, which is located inside and connected to the first housing 1. The third baffle 20 is located outside the output end of the flow guide 6, and there is a gap space 21 between the flow guide 6 and the third baffle 20. When the particulate material on the flow guide 6 is output from the output end of the flow guide 6, the particulate material may splash under the action of airflow. The third baffle 20 can block the particulate material output from the output end of the flow guide 6 to prevent the particulate material from splashing everywhere and make the particulate material fall onto the flow guide 10 in an orderly manner.
[0025] This utility model also includes an adjustment component 22 for adjusting the size of the gap 21 between the third baffle 20 and the guide frame 6. The adjustment component 22 cooperates with the first housing 1, and one end of the adjustment component 22 cooperates with the side wall of the third baffle 20. The third baffle 20 is hinged to the first housing 1. The adjustment component 22 includes a handle and a screw. One end of the handle is fixed to the screw, and the other end of the screw passes through the first housing 1 and enters the interior of the first housing. The screw is threadedly connected to the first housing 1. Rotating the handle causes the screw to rotate, and the screw causes the guide plate 10 to swing, thereby changing the size of the gap 21 between the third baffle 20 and the guide frame 6.
Claims
1. An automatic dust removal device for particulate materials, comprising a first housing (1), wherein the first housing (1) is provided with a feed inlet (2), a discharge outlet (3), a first air inlet (4), and a return air inlet (5), characterized in that, It also includes a flow guide (6) that moves particulate material from high to low under the action of airflow. The flow guide (6) is located inside the first box (1) and fixed to the first box (1). The feed inlet (2) is located above the flow guide (6). The flow guide (6) is located above the discharge outlet (3). The flow guide (6) is provided with several first ventilation holes (7). The flow guide (6) is also provided with a first baffle (8) to prevent particulate material from falling into the first ventilation holes (7). A first baffle (8) is arranged above each first ventilation hole (7). One end of each first baffle (8) is fixed to the flow guide (6), and the other end of each first baffle (8) is a free end.
2. The automatic dust removal device for particulate materials according to claim 1, characterized in that, It also includes a guide plate (10) that guides the particulate material falling from the guide frame (6) to the discharge port (3). The guide plate (10) is located inside the first box (1) and fixed to the first box (1). The guide plate (10) is located below the guide frame (6).
3. The automatic dust removal device for particulate materials according to claim 1, characterized in that, The first housing (1) is also provided with a second air inlet (11), and a receiving cavity (9) is formed between the guide plate (10) and the first housing (1), which is in conjunction with the second air inlet (11); The guide plate (10) is provided with a plurality of second ventilation holes (12), and the guide plate (10) is also provided with a second baffle (13) to prevent particulate material from falling into the second ventilation holes (12). A second baffle (13) is arranged above each second ventilation hole (12). One end of each second baffle (13) is fixed to the guide plate (10), and the other end of each second baffle (13) is a free end.
4. The automatic dust removal device for particulate materials according to claim 3, characterized in that, It also includes a first cover (14) and an air inlet pipe (15). The first cover (14) is located outside the first housing (1) and fixed to the first housing (1). An air inlet channel (16) is formed between the first cover (14) and the first housing (1). The first cover (14) covers the first air inlet (4) and the second air inlet (11). The air inlet pipe (15) is fixed to the first cover (14) and is connected to the air inlet channel (16).
5. The automatic dust removal device for particulate materials according to claim 1, characterized in that, It also includes a second cover (17) and a return air duct (18). The second cover (17) is located outside the first housing (1) and fixed to the first housing (1). A return air duct (19) is formed between the second cover (17) and the first housing (1). The return air duct (18) is fixed to the second cover (17) and is connected to the return air duct (19). There are multiple return air inlets (5), and the second cover (17) covers multiple return air inlets (5) respectively.
6. The automatic dust removal device for particulate materials according to any one of claims 1 to 5, characterized in that, It also includes a third baffle (20), which is located inside and connected to the first housing (1). The third baffle (20) is located outside the output end of the guide frame (6), and there is a gap space (21) between the guide frame (6) and the third baffle (20).
7. The automatic dust removal device for particulate materials according to claim 6, characterized in that, It also includes an adjustment component (22) for adjusting the size of the gap space (21) between the third baffle (20) and the guide frame (6). The adjustment component (22) cooperates with the first housing (1), and one end of the adjustment component (22) cooperates with the side wall of the third baffle (20). The third baffle (20) is hinged to the first housing (1).