Dust filtering mechanism for adsorption type drying machine

Abstract

The utility model relates to the technical field of drying machines, in particular to a dust filtering mechanism for an adsorption type drying machine, which comprises the adsorption type drying machine, an air pipe, a top shell, a bottom shell, a filter screen, a support plate, a cleaning component, a collecting component and the like. A supporting plate is connected into the top shell, a bottom shell is in threaded connection with the lower end of the top shell, a filter screen is slidably connected between the top shell and the bottom shell, the top of the filter screen makes contact with the supporting plate, and a cleaning assembly used for cleaning the filter screen is arranged on the supporting plate. A collecting assembly used for collecting dust is arranged at the bottom of the bottom shell. Through the cleaning assembly composed of the servo motor, the lead screw, the brush and the like, automatic cleaning of the filter screen is achieved, complexity and inconvenience of manual cleaning are avoided, and meanwhile the continuity of the filtering effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to a dust filtration mechanism for an adsorption dryer. Background Technology

[0002] In today's industrial production environments, especially in high-precision fields such as pharmaceuticals, food processing, and electronics manufacturing, adsorption dryers play a crucial role due to their high efficiency, stability, and adjustable humidity. These fields have extremely high standards for the purity and humidity of compressed air, and adsorption dryers are key equipment capable of meeting these requirements.

[0003] Traditional adsorption dryers, such as the combined adsorption dryer with patent number CN209464851U, primarily operate based on the adsorption and desorption processes of an adsorbent. Compressed air containing moisture is introduced into the adsorption chamber through inlet and outlet valves. The adsorbent (such as a molecular sieve) adsorbs the moisture from the air, achieving drying. The dried air is then discharged through the outlet valve and supplied to downstream air-using equipment. This design not only effectively reduces the humidity in the compressed air but also further removes oil, dust, and other impurities through a combined filtration system, improving air quality.

[0004] However, despite the significant advancements in structure and function of the aforementioned dryers, some shortcomings remain in practical use. In particular, fine particles and impurities in the air tend to accumulate on the filter screen after the adsorption process, forming a dust layer. This dust not only reduces the filter's efficiency and increases airflow resistance but may also enter downstream air-consuming equipment, potentially causing damage. Furthermore, frequent cleaning and replacement of the filter screen increases equipment maintenance costs and downtime, impacting production efficiency. Utility Model Content

[0005] To overcome the drawback of needing to frequently replace or clean the filter screen, this utility model provides a self-cleaning dust filtration mechanism for an adsorption dryer.

[0006] A dust filtration mechanism for an adsorption dryer includes an adsorption dryer, an air pipe, a top outer shell, a bottom outer shell, a filter screen, a support plate, a cleaning component, and a collection component. The adsorption dryer is equipped with multiple filters and connected to the air pipe. The multiple filters are interconnected through the air pipe. The top outer shell is connected to the adsorption dryer and communicates with the air pipe. A support plate is connected inside the top outer shell. The bottom outer shell is threadedly connected to the lower end of the top outer shell. A filter screen is slidably connected between the top and bottom outer shells, with the top of the filter screen contacting the support plate. A cleaning component for cleaning the filter screen is provided on the support plate. A collection component for collecting dust is provided at the bottom of the bottom outer shell.

[0007] Furthermore, the cleaning components include a servo motor, a lead screw, a limit rod, a brush, and a sliding block. The servo motor is mounted on a support plate, and the output shaft of the servo motor passes through the support plate and is fixedly connected to the lead screw. The bottom of the support plate is connected to the limit rod, and the sliding block is threadedly connected to the lead screw and slidably connected to the limit rod. A brush is fixedly connected to the sliding block, and the brush engages with the filter screen through friction.

[0008] Furthermore, the collection assembly includes a movable plate, a top rod, a mounting base, a connecting rod, a torsion spring, a collection chamber, and a bottom cover. The collection chamber is fixedly connected to the bottom of the bottom outer shell, and the bottom cover is threadedly connected to the bottom of the collection chamber. The mounting base is fixedly connected inside the collection chamber, and the connecting rod is rotatably connected to the mounting base. Both ends of the connecting rod and the mounting base are fitted with torsion springs. One end of the torsion spring is connected to the mounting base, and the other end is connected to the end of the connecting rod. The other end of the connecting rod is connected to the movable plate, and the bottom of the sliding block is connected to a top rod, which is pressed against the movable plate.

[0009] Furthermore, it also includes a wedge block and a return spring. The bottom of the support plate is connected to the wedge block, the connection between the brush and the sliding block is changed to a sliding connection, and a return spring is sleeved between the brush and the sliding block. One end of the return spring is connected to the brush, and the other end is connected to the sliding block.

[0010] Furthermore, it also includes a scraper, which is connected to the bottom of the bottom housing and contacts one side of the filter screen frame.

[0011] Furthermore, it also includes a pull rope, one end of which is connected to the collection chamber and the other end to the bottom of the cover.

[0012] Furthermore, it also includes an observation window, which is located on the side of the collection chamber to observe the dust collection process inside the chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The cleaning assembly, consisting of a servo motor, lead screw, and brushes, moves the brushes up and down, achieving automated cleaning of the filter screen. This avoids the tediousness and inconvenience of manual cleaning and ensures the continuity of the filtration effect. The design of the top rod and the movable plate allows dust to fall into the collection chamber automatically during the cleaning process, preventing dust accumulation on the filter screen surface and further improving the filtration effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the filter screen and limiting rod of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the servo motor and lead screw of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the torsion spring and connecting rod of this utility model.

[0019] Component names and serial numbers in the diagram: 1_Adsorption dryer, 101_Air pipe, 2_Top outer shell, 201_Filter screen, 3_Support plate, 4_Servo motor, 5_Lead screw, 6_Limit rod, 7_Brush, 701_Sliding block, 8_Bottom outer shell, 801_Modible plate, 802_Top rod, 9_Mounting base, 10_Connecting rod, 11_Torsion spring, 12_Collection chamber, 13_Bottom cover, 14_Scraper, 15_Pull rope, 16_Wedge block, 1601_Reset spring, 17_Observation window. Detailed Implementation

[0020] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example: A dust filtration mechanism for an adsorption dryer, such as... Figures 1-4 As shown, the device includes an adsorption dryer 1, an air pipe 101, a top outer shell 2, a bottom outer shell 8, a filter screen 201, a support plate 3, a cleaning component, and a collection component. The adsorption dryer 1 is equipped with multiple filters, including high-efficiency filters for filtering different substances such as oil and water filters, as well as dust filters. The air pipe 101 is connected to the adsorption dryer 1, and the multiple filters are connected through the air pipe 101. The top outer shell 2 is connected to the adsorption dryer 1, and its left side is connected to the air pipe 101. The support plate 3 is connected inside the top outer shell 2, and the bottom outer shell 8 is threadedly connected to the lower end of the top outer shell 2. The filter screen 201 is slidably connected between the top outer shell 2 and the bottom outer shell 8, and the top of the filter screen 201 contacts the support plate 3. The support plate 3 is equipped with a cleaning component for cleaning the filter screen 201, and the bottom of the bottom outer shell 8 is equipped with a collection component for collecting dust.

[0022] like Figure 2 and Figure 3 As shown, the cleaning assembly includes a servo motor 4, a lead screw 5, a limit rod 6, a brush 7, and a sliding block 701. The servo motor 4 is mounted on a support plate 3, and the output shaft of the servo motor 4 passes through the support plate 3 and is fixedly connected to the lead screw 5. The bottom of the support plate 3 is connected to the limit rod 6. The sliding block 701 is threadedly connected to the lead screw 5 and slidably connected to the limit rod 6. The lead screw 5 and the limit rod 6 are located on both sides of the sliding block 701 and are distributed in a mutually supporting manner. The brush 7 is fixedly connected to the sliding block 701, and the brush 7 is in frictional engagement with the filter screen 201.

[0023] like Figure 2 and Figure 4 As shown, the collection assembly includes a movable plate 801, a top rod 802, a mounting base 9, a connecting rod 10, a torsion spring 11, a collection chamber 12, and a bottom cover 13. The collection chamber 12 is fixedly connected to the bottom of the bottom outer shell 8. The bottom cover 13 is threadedly connected to the bottom of the collection chamber 12. The mounting base 9 is fixedly connected inside the collection chamber 12. The connecting rod 10 is rotatably connected to the mounting base 9. Both ends of the connecting rod 10 and the mounting base 9 are fitted with torsion springs 11. One end of the torsion spring 11 is connected to the mounting base 9, and the other end is connected to the end of the connecting rod 10. The other end of the connecting rod 10 is connected to the movable plate 801. The bottom of the sliding block 701 is connected to the top rod 802. The top rod 802 is pressed against the movable plate 801.

[0024] The adsorption dryer 1 is equipped with multiple filters, including high-efficiency filters such as oil and water filters to filter different substances, as well as dust filters. The gas drawn in passes through the above filters in sequence, and then through the dust filter. When the gas enters the top outer shell 2 through the air pipe 101, the airflow passes through the filter screen 201. Dust and fine particles are blocked by the filter screen 201 and stick to the filter screen 201. The servo motor 4 is set to start intermittently. The operator sets the interval time according to the amount of dust in the working environment of the adsorption dryer 1. If there is more dust, the interval time is shorter.

[0025] After the servo motor 4 is turned on, it drives the lead screw 5 to rotate. The servo motor 4, through the lead screw 5, drives the sliding block 701 to move up and down. The brush 7 on the sliding block 701 cleans the filter screen 201 accordingly. The dust on the surface of the filter screen 201 falls off and lands on the movable plate 801. As the sliding block 701 moves downward, the top rod 802 on it contacts and presses the movable plate 801 downward. The movable plate 801 rotates around the mounting base 9 through the connecting rod 10. After the movable plate 801 tilts, the movable plate 801... Dust on 01 falls into the collection chamber 12. During the rotation of the connecting rod 10, the torsion spring 11 is torn. Then the servo motor 4 reverses and drives the sliding block 701 to move upward through the lead screw 5. Under the torque of the torsion spring 11, the movable plate 801 is pushed to stick to the top rod 802. As the top rod 802 moves upward with the sliding block 701, the movable plate 801 also rotates upward under the torque of the torsion spring 11, thus preventing dust from accumulating on the surface of the filter screen 201 and also preventing dust from accumulating at the bottom of the filter screen 201, making it convenient for subsequent dust cleaning.

[0026] During routine maintenance, the staff unscrewed the bottom outer shell 8, and the filter screen 201 slowly slid down. They observed the condition of the air intake surface of the filter screen 201 and, based on the condition of the filter screen 201, decided whether to replace it. Then, the staff unscrewed the bottom cover 13, emptied the dust from the collection chamber 12, cleaned the collection chamber 12, screwed the bottom cover 13 back on, installed the filter screen 201, and screwed the bottom outer shell 8 back on.

[0027] like Figure 2 and Figure 3 As shown, it also includes a wedge block 16 and a return spring 1601. The bottom of the support plate 3 is connected to the wedge block 16. The connection between the brush 7 and the sliding block 701 is changed to a sliding connection. A return spring 1601 is sleeved between the brush 7 and the sliding block 701. One end of the return spring 1601 is connected to the brush 7, and the other end is connected to the sliding block 701. The height of the wedge block 16 is greater than the height of the brush 7.

[0028] With a return spring 1601 installed between the brush 7 and the sliding block 701, when the brush 7 moves upward, due to the squeezing of the wedge block 16, the brush 7 will approach the sliding block 701 and compress the return spring 1601. The dust on the brush 7 is scraped off by the wedge block 16, thus preventing the dust from being pushed to the top of the filter screen 201. Since the height of the wedge block 16 is greater than the height of the brush 7, the brush 7 slides downward after passing the wedge block 16, which can clean the dust at the bottom of the wedge block 16. The return spring 1601 always pushes the brush 7 close to the filter screen 201, thus ensuring the cleaning effect on the filter screen 201.

[0029] like Figure 2 As shown, it also includes a scraper 14. The bottom of the bottom housing 8 is connected to the scraper 14, and the scraper 14 contacts one side of the filter screen 201.

[0030] When the brush 7 slides down and comes into contact with the scraper 14, it can bend the bristles on the brush 7, thereby shaking the bristles and cleaning the dust on the brush 7, ensuring the cleaning effect of the brush 7.

[0031] like Figure 1 and Figure 2 As shown, it also includes a pull rope 15, one end of which is connected to the collection chamber 12 and the other end is connected to the bottom of the bottom cover 13.

[0032] When the staff unscrews the bottom cover 13, the pull rope 15 can suspend the bottom cover 13, so that the staff does not need to place the bottom cover 13 outside, which facilitates the subsequent unscrewing operation.

[0033] like Figure 1 As shown, it also includes an observation window 17. The observation window 17 is opened on the side of the collection chamber 12 for observing the dust collection situation inside the collection chamber 12.

[0034] If the environment where the adsorption dryer 1 is located has little dust, the amount of dust in the collection chamber 12 can be directly observed through the observation window 17 during routine maintenance. If the amount of dust is small, the working pressure of the filter screen 201 is also small, the filtration effect of the filter screen 201 can be guaranteed, and the small amount of dust does not need to be cleaned.

[0035] 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 improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dust filtration mechanism for an adsorption dryer, characterized in that, The assembly includes an adsorption dryer (1), an air pipe (101), a top shell (2), a bottom shell (8), a filter screen (201), a support plate (3), a cleaning assembly, and a collection assembly. The adsorption dryer (1) is equipped with multiple filters and is connected to the air pipe (101). The multiple filters are connected through the air pipe (101). The top shell (2) is connected to the adsorption dryer (1) and is connected to the air pipe (101). The support plate (3) is connected inside the top shell (2). The bottom shell (8) is threadedly connected to the lower end of the top shell (2). A filter screen is slidably connected between the top shell (2) and the bottom shell (8). (201) The top of the filter screen (201) contacts the support plate (3). The support plate (3) is provided with a cleaning component for cleaning the filter screen (201). The bottom of the bottom shell (8) is provided with a dust collection component. The cleaning component includes a servo motor (4), a lead screw (5), a limit rod (6), a brush (7), and a sliding block (701). The servo motor (4) is mounted on the support plate (3). The output shaft of the servo motor (4) passes through the support plate (3) and is fixedly connected to the lead screw (5). The bottom of the support plate (3) is connected to the limit rod (6). The sliding block (701) is threadedly connected to the lead screw (5) and slidably connected to the limit rod. (6) A brush (7) is fixedly connected to the sliding block (701), and the brush (7) rubs against the filter screen (201); the collection assembly includes a movable plate (801), a top rod (802), a mounting base (9), a connecting rod (10), a torsion spring (11), a collection chamber (12), and a bottom cover (13). The collection chamber (12) is fixedly connected to the bottom of the bottom outer shell (8), and the bottom cover (13) is threadedly connected to the bottom of the collection chamber (12). The mounting base (9) is fixedly connected inside the collection chamber (12), and the connecting rod (10) is rotatably connected to the mounting base (9). Both ends of the connecting rod (10) and the mounting base (9) are fitted with torsion springs (11). One end of the torsion spring (11) is connected to the mounting base (9). The mounting base (9) is connected, and the other end is connected to the end of the connecting rod (10). The other end of the connecting rod (10) is connected to the movable plate (801). The bottom of the sliding block (701) is connected to the top rod (802). The top rod (802) and the movable plate (801) are pressed together. It also includes a wedge block (16) and a return spring (1601). The bottom of the support plate (3) is connected to the wedge block (16). The connection method of the brush (7) and the sliding block (701) is changed to a sliding connection. A return spring (1601) is sleeved between the brush (7) and the sliding block (701). One end of the return spring (1601) is connected to the brush (7), and the other end is connected to the sliding block (701).

2. The dust filtration mechanism for an adsorption dryer according to claim 1, characterized in that, It also includes a scraper (14), and the bottom of the bottom housing (8) is connected to the scraper (14), which contacts one side of the filter screen (201).

3. The dust filtration mechanism for an adsorption dryer according to claim 2, characterized in that, It also includes a pull rope (15), one end of which is connected to the collection chamber (12), and the other end is connected to the bottom of the bottom cover (13).

4. The dust filtration mechanism for an adsorption dryer according to claim 3, characterized in that, It also includes an observation window (17), which is opened on the side of the collection chamber (12) to observe the dust collection situation inside the collection chamber (12).

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