A pipeline filter for silicon powder drying processing

Abstract

This utility model relates to the field of filter technology, and more particularly to a pipeline filter for silicon powder drying and processing. It includes a housing, a cleaning cap fixedly connected to the top of the housing via a flange, a cylinder fixedly connected to the top of the cleaning cap, a collection rail connected to the cylinder via a scraping structure, an installation groove at the bottom of the cleaning cap, a cylindrical filter screen embedded in the groove, a magnetic rod fixedly connected to the center of the cylindrical filter screen, and a cleaning port on the outer wall of the cleaning cap. This utility model, through the coordinated design of the scraping structure and the collection rail, allows the cleaning scraper on the collection rail to scrape away the metal powder adsorbed on the surface of the magnetic rod when the cylinder drives the fixed plate to move the sliding rod. When the magnetic rod is saturated with metal powder, impurities can be removed without stopping the machine, ensuring that the magnetic rod maintains a consistently high adsorption capacity, continuously intercepting impurities and guaranteeing the effectiveness and continuity of filtration during the silicon powder drying and processing.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a pipeline filter for silicon powder drying and processing. Background Technology

[0002] A pipeline filter for silicon powder drying is a specialized device used in the silicon powder drying process to remove impurities from silicon powder and ensure its purity and quality.

[0003] Existing pipeline filters, such as the magnetic filter for silicon powder filtration disclosed in CN219898550U, employ a design with magnetic rods embedded in the filter screen. These magnetic rods adsorb fine metal powders from the silicon powder, improving the filtration efficiency. However, as the filtration process continues, the surface of the magnetic rods continuously adsorbs metal powders. Once saturated, their adsorption capacity significantly decreases, rendering them unable to effectively intercept impurities. This necessitates frequent shutdowns for cleaning, disrupting the continuous production process of silicon powder drying, reducing production efficiency, and increasing the production cycle. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing filters where, as the filtration process continues, the surface of the magnetic rod continuously adsorbs metal powder. Once saturated, the adsorption capacity decreases significantly, making it unable to effectively intercept impurities. This necessitates frequent shutdowns for cleaning, leading to interruptions in the continuous production process of silicon powder drying, reducing production efficiency, and increasing the production cycle. Therefore, this invention proposes a pipeline filter for silicon powder drying.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipeline filter for drying silicon powder includes a housing, a cleaning cap fixedly connected to the top of the housing via a flange, a cylinder fixedly connected to the top of the cleaning cap, a collection rail connected to the cylinder via a scraping structure, an installation groove provided at the bottom of the cleaning cap, a cylindrical filter screen embedded in the installation groove, a magnetic rod fixedly connected to the center of the inner part of the cylindrical filter screen, and a cleaning port provided on the outer wall of the cleaning cap.

[0007] Preferably, the scraping structure includes a fixing plate, a pair of sliding rods are fixedly connected to the bottom of the fixing plate, a baffle is fixedly connected to the inner wall of the cleaning cap, and the sliding rods pass through the outer wall of the cleaning cap and are fixedly connected to the top of the collection bar.

[0008] Preferably, a cleaning scraper arranged in a ring is fixedly connected to the center of the collection column. The cleaning scraper has a triangular cross-section, and its tip is in close contact with the outer wall of the magnetic rod.

[0009] Preferably, a waterproof shell is fixedly connected to the top of the inner wall of the cleaning cap, and the bottom of the cylinder passes through the outer wall of the cleaning cap and is disposed inside the waterproof shell.

[0010] Preferably, the inner wall of the collection column is provided with an annular groove, a collar is fitted on the magnetic rod, a rotating rod is fixedly connected to the outer wall of the collar, the rotating rod slides in conjunction with the groove, and a scraper is fixedly connected to the bottom of the rotating rod.

[0011] Preferably, the top of the collection column has a cleaning notch, and an arc-shaped baffle is inserted into the cleaning notch.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. In use, this utility model, through the coordinated design of the scraping structure and the collection rail, allows the cleaning scraper on the collection rail to scrape away the metal powder adsorbed on the surface of the magnetic rod when the cylinder drives the fixed plate to move the slide rod. Once the magnetic rod is saturated with metal powder, impurities can be removed without stopping the machine, ensuring that the magnetic rod maintains its high-efficiency adsorption capacity, continuously intercepting impurities and guaranteeing the effectiveness and continuity of filtration during the silicon powder drying process.

[0014] 2. In use, this utility model utilizes an auxiliary cleaning structure consisting of a sliding groove, a collar, a rotating rod, and a scraper on the inner wall of the collection column. During the movement of the collection column, the scraper cleans the inner wall of the cylindrical filter screen, preventing impurities such as silica powder from adhering and clogging, thus further ensuring the filtration effect. At the same time, it reduces the frequency and difficulty of manual cleaning. The cleaning notch and arc-shaped baffle make it convenient for operators to clean the impurities scraped from the collection column, making maintenance and operation simple and convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a pipeline filter for drying silicon powder according to the present invention.

[0016] Figure 2 A cross-sectional view of a pipeline filter for drying silicon powder according to this utility model. Figure 1 ;

[0017] Figure 3 A cross-sectional view of a pipeline filter for drying silicon powder according to this utility model. Figure 2 ;

[0018] Figure 4 This is a three-dimensional structural diagram of the collection column 4 of a pipeline filter for silicon powder drying and processing proposed in this utility model.

[0019] In the diagram: 1. Shell; 2. Cleaning cap; 3. Cylinder; 4. Collection basket; 5. Mounting slot; 6. Cylindrical filter screen; 7. Magnetic rod; 8. Cleaning port; 9. Fixing plate; 10. Sliding rod; 11. Baffle; 12. Waterproof shell; 13. Cleaning scraper; 14. Sliding groove; 15. Collar; 16. Rotating rod; 17. Scraper; 18. Cleaning notch; 19. Arc-shaped baffle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4 A pipeline filter for drying silicon powder includes a housing 1, a cleaning cap 2 fixedly connected to the top of the housing 1 via a flange, and a sealing cover connected to the cleaning cap 2 via a flange to prevent external impurities from entering the silicon powder during operation.

[0022] A limiting block is fixedly connected to the outer wall of the cleaning cap 2. The limiting block slides with the mounting groove 5. A threaded hole coaxial with the mounting groove 5 is opened at the bottom of the limiting block. A bolt is inserted into the bottom of the limiting block and threadedly connected to the mounting groove 5.

[0023] A cylinder 3 is fixedly connected to the top of the cleaning cap 2. The cylinder 3 is connected to a collection rail 4 through a scraping structure. An installation groove 5 is provided at the bottom of the cleaning cap 2. A cylindrical filter screen 6 is embedded in the installation groove 5. The outer wall of the cylindrical filter screen 6 has a through-hole coaxial with the water inlet and outlet of the housing 1 to facilitate the passage and filtration of silica powder.

[0024] A magnetic rod 7 is fixedly connected to the center of the inner part of the cylindrical filter screen 6, and a cleaning port 8 is opened on the outer wall of the cleaning cap 2.

[0025] Furthermore, the scraping structure includes a fixing plate 9, a pair of sliding rods 10 are fixedly connected to the bottom of the fixing plate 9, a baffle 11 is fixedly connected to the inner wall of the cleaning cap 2, and the sliding rods 10 pass through the outer wall of the cleaning cap 2 and are fixedly connected to the top of the collection bar 4.

[0026] Among them, a pair of sliding rods 10 are vertically fixed to the bottom of the fixing plate 9. Their surfaces are subjected to high-precision grinding and hardening treatment, forming a precise sliding fit with the perforations on the cleaning cap 2. Driven by the cylinder 3, the sliding rods 10 can move smoothly up and down inside the cleaning cap 2, driving the collection column 4 to reciprocate.

[0027] Furthermore, a cleaning scraper 13 arranged in a ring is fixedly connected to the center of the collection column 4. The cross-section of the cleaning scraper 13 is triangular, and its tip is in close contact with the outer wall of the magnetic rod 7.

[0028] Its unique triangular cross-section design allows the tip to fit tightly against the outer wall of the magnetic rod 7, resulting in a highly efficient scraping effect. The cleaning scraper 13 is made of high-hardness and wear-resistant material. When scraping magnetic impurities on the surface of the magnetic rod 7, it can not only thoroughly remove the attached impurities, but also effectively reduce its own wear and extend its service life.

[0029] Furthermore, a waterproof shell 12 is fixedly connected to the top of the inner wall of the cleaning cap 2, and the bottom of the cylinder 3 passes through the outer wall of the cleaning cap 2 and is disposed inside the waterproof shell 12.

[0030] The waterproof shell 12 is fixed to the top of the inner wall of the cleaning cap 2. It adopts a fully enclosed waterproof design, which can effectively prevent water vapor, dust and other substances generated during the silicon powder drying process from entering the cylinder 3. Its material has good corrosion resistance and insulation, which can protect the electrical components and mechanical parts of the cylinder 3 from the influence of the external environment and extend the service life of the cylinder 3.

[0031] Furthermore, the inner wall of the collection column 4 is provided with an annular groove 14, and a collar 15 is fitted on the magnetic rod 7. The outer wall of the collar 15 is fixedly connected to a rotating rod 16, which slides in conjunction with the groove 14. A scraper 17 is fixedly connected to the bottom of the rotating rod 16.

[0032] After the scraping structure is completed, the rotating rod 16 can be manually rotated to drive the scraper 17 to push the metal powder on the inner wall of the collection column 4 to a position close to the cleaning port 8, so as to facilitate the removal of the cleaning cap 2.

[0033] Furthermore, a cleaning notch 18 is provided at the top of the collection column 4, and an arc-shaped baffle 19 is inserted into the cleaning notch 18.

[0034] Among them, the arc-shaped baffle 19 can effectively prevent the collected impurities from spilling during transportation and cleaning, keeping the working environment clean. It is easy to disassemble and install, and staff can quickly remove it to clean the impurities in the collection column 4. After cleaning, it can be quickly reset without affecting the normal operation of the equipment, thus improving the efficiency and convenience of equipment maintenance.

[0035] It should be noted that cylinder 3 and magnetic rod 7 are existing technologies. The specific model and specifications to be used need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts existing technology in this field, so it will not be elaborated here. Both can be powered by external devices and controlled to open and close.

[0036] Working principle:

[0037] First, the silica powder mixture enters the cylindrical filter screen 6 through the inlet and outlet of the housing 1. The magnetic rod 7 adsorbs the magnetic impurities in it. During operation, the cylinder 3 drives the fixed plate 9 to move the slide rod 10 and the collection bar 4 up and down. The triangular tip of the cleaning scraper 13 scrapes off the impurities adsorbed on the surface of the magnetic rod 7 and they fall into the collection bar 4. When cleaning is required, the rotating rod 16 is manually rotated to drive the scraper 17 to push the metal powder on the inner wall of the collection bar 4 to the vicinity of the cleaning port 8. After removing the arc-shaped baffle 19, the impurities are discharged through the cleaning notch 18. The waterproof housing 12 protects the cylinder 3 from water vapor and dust corrosion throughout the process. The bolt connection between the limit block and the mounting groove 5 ensures that the cleaning cap 2 is stably sealed. The whole process realizes the integrated functions of high-efficiency filtration, automatic scraping of impurities and convenient cleaning.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipe filter for drying processing of silicon powder, comprising a housing (1), characterized in that, A cleaning cap (2) is fixedly connected to the top of the housing (1) via a flange. A cylinder (3) is fixedly connected to the top of the cleaning cap (2). A collection rail (4) is connected to the cylinder (3) via a scraping structure. An installation groove (5) is provided at the bottom of the cleaning cap (2). A cylindrical filter screen (6) is embedded in the installation groove (5). A magnetic rod (7) is fixedly connected to the center of the inner part of the cylindrical filter screen (6). A cleaning port (8) is provided on the outer wall of the cleaning cap (2).

2. The pipe filter for drying silicon powder according to claim 1, wherein The scraping structure includes a fixing plate (9), a pair of sliding rods (10) are fixedly connected to the bottom of the fixing plate (9), a baffle (11) is fixedly connected to the inner wall of the cleaning cap (2), and the sliding rods (10) pass through the outer wall of the cleaning cap (2) and are fixedly connected to the top of the collection bar (4).

3. The pipe filter for drying silicon powder according to claim 1, wherein The center of the collection column (4) is fixedly connected to a cleaning scraper (13) arranged in a ring shape. The cross-section of the cleaning scraper (13) is triangular, and its tip is in close contact with the outer wall of the magnetic rod (7).

4. The pipe filter for drying silicon powder according to claim 1, wherein A waterproof shell (12) is fixedly connected to the top of the inner wall of the cleaning cap (2), and the bottom of the cylinder (3) passes through the outer wall of the cleaning cap (2) and is set inside the waterproof shell (12).

5. The pipe filter for drying silicon powder according to claim 1, wherein The inner wall of the collection column (4) is provided with an annular groove (14), and a collar (15) is fitted on the magnetic rod (7). A rotating rod (16) is fixedly connected to the outer wall of the collar (15). The rotating rod (16) slides with the groove (14), and a scraper (17) is fixedly connected to the bottom of the rotating rod (16).

6. The pipe filter for drying silicon powder according to claim 1, wherein The top of the collection column (4) is provided with a cleaning notch (18), and an arc-shaped baffle (19) is inserted into the cleaning notch (18).

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