Multi-stage slurry filtering device

Abstract

The utility model discloses a multi-stage slurry filtering device, which relates to the technical field of conductive agent production and comprises a multi-stage filtering device main body. An outer filter screen is mounted on the surface of the inner wall of the multi-stage filtering device main body, a fixed socket is arranged on the surface of the bottom of the outer filter screen, a connecting plate is arranged on the surface of the inner wall of the fixed socket, a spiral rotating rod is rotatably mounted on the surface of the upper end of the connecting plate, and a rotating sleeve is arranged on the upper surface of the spiral rotating rod; the slurry multi-stage filtering device comprises an outer filtering net, a rotating sleeve is arranged on the outer surface of the rotating sleeve, a supporting frame is arranged on the outer surface of the rotating sleeve, a scraping plate is installed at the front end of the supporting frame, and the scraping plate is in friction connection with the inner wall of the outer filtering net. When slurry is filtered through the inner filter screen and enters the outer filter screen for secondary filtration, the scraping plate can scrape off the slurry on the surface of the inner wall of the outer filter screen, and viscous slurry is prevented from being adhered to the surface of the inner wall of the outer filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive agent production, in particular to a multi-stage filtration device for slurry. Background Art

[0002] Conductive paste, also known as conductive adhesive, is a mixture of precious metal powder, base metal powder, glass powder and synthetic resin, and is mainly used for wiring of thick film integrated circuits, electrodes of ceramic capacitors, etc., and leads of hybrid integrated circuits. There are often some substances such as metal particles that are not well mixed in advance in the conductive paste. Therefore, a filtration process needs to be added in the production process to filter out these solid particles and improve product quality.

[0003] For example, the patent document with the application number 202121513314.3 discloses a multi-stage filtration device for conductive paste. The utility model discloses a multi-stage filtration device for conductive paste, including a cylinder body with a cover plate installed on the top. A first filter cylinder and a second filter cylinder are arranged inside the cylinder body. The bottom of the first filter cylinder is open. A first rotating shaft and a second rotating shaft are respectively arranged inside the first filter cylinder and the second filter cylinder. Stirring blades are installed on both the first rotating shaft and the second rotating shaft. A separation cylinder is arranged below the first filter cylinder. An impurity discharge hopper is installed at the bottom of the cylinder body, and a discharge pipe communicating with the cylinder body is arranged around the impurity discharge hopper. In the utility model, by setting the first filter cylinder and the second filter cylinder, and combining the first rotating shaft and the second rotating shaft to stir the conductive paste, the conductive paste is filtered in turn through the side wall of the first filter cylinder, the inner side wall and the bottom inner wall of the second filter cylinder, realizing the multi-stage filtration of the conductive paste. By setting the stirring blades, the movement speed of the viscous conductive paste is increased, improving the production efficiency. However, in the multi-stage filtration device for conductive paste, when filtering the paste through the second filter cylinder, if the unfiltered paste residue adheres to the surface of the second filter cylinder for a long time without being cleaned, it will cause the drying of the paste and affect the subsequent normal filtration.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a multi-stage filtration device for slurry is proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a multi-stage filtration device for slurry to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A multi-stage slurry filtering device, including a multi-stage filtering device main body, an outer filter screen is installed on the inner wall surface of the multi-stage filtering device main body, and a fixed socket is arranged on the bottom surface of the outer filter screen. A connecting plate is arranged on the inner wall surface of the fixed socket, and a spiral rotating rod is rotatably installed on the upper end surface of the connecting plate. A rotating sleeve is arranged on the upper surface of the spiral rotating rod, and a support frame is arranged on the outer surface of the rotating sleeve. A scraper is installed at the front end of the support frame, and the scraper is in frictional connection with the inner wall of the outer filter screen.

[0007] Preferably, an inner filter screen is installed at the upper end of the fixed socket.

[0008] Preferably, connecting strips are arranged on the outer circular two-side surfaces of the inner filter screen, and a waste bin is arranged below the inner filter screen.

[0009] Preferably, a limiting plate is slidably installed on the surface of the connecting strip.

[0010] Preferably, a discharge pipe is arranged on the lower end surface of the multi-stage filtering device main body, and a sliding groove is opened on the outer circular lower surface of the discharge pipe.

[0011] Preferably, a damping slider is installed inside the sliding groove, and the damping slider is slidably connected with the sliding groove.

[0012] Preferably, a splash-proof baffle is arranged on the rear end surface of the damping slider, and the splash-proof baffle is arc-shaped.

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

[0014] 1. Through the settings of the multi-stage filtering device main body, the outer filter screen, the fixed socket, the connecting plate, the spiral rotating rod, the rotating sleeve, the support frame and the scraper, by setting the scraper, when the slurry passes through the inner filter screen for filtration and enters the outer filter screen for secondary filtration, the scraper can scrape off the slurry on the inner wall surface of the outer filter screen, avoiding the adhesion of viscous slurry on the inner wall surface of the outer filter screen. If the slurry dries, it will be difficult to clean, affecting the normal filtering use of the outer filter screen.

[0015] 2. Through the settings of the inner filter screen, the connecting strip, the limiting plate and the waste bin, by setting the limiting plate, the two fitting inner filter screens can be fixed, avoiding loosening during filtration and also being able to regularly open the inner filter screen to clean the inner filter screen.

[0016] 3. Through the settings of the discharge pipe, the sliding groove, the splash-proof baffle and the damping slider, by setting the splash-proof baffle, it can avoid the splashing of the discharging slurry onto the ground, causing pollution to the ground, and at the same time avoid the waste of the slurry. Description of the Drawings

[0017] Figure 1 This is the overall three-dimensional structure diagram of the present utility model;

[0018] Figure 2 This is the structure diagram of the filtering device of the present utility model;

[0019] Figure 3 This is the structure diagram of the scraper of the present utility model;

[0020] Figure 4 This is the present utility model Figure 1 The enlarged structure diagram at position A in the present utility model.

[0021] In the figure: 1. Main body of the multi-stage filtering device; 2. Outer filter net; 201. Fixed socket; 202. Connecting plate; 203. Spiral rotating rod; 204. Rotating sleeve; 205. Support frame; 206. Scraper; 3. Inner filter net; 301. Connecting strip; 302. Limiting plate; 303. Waste bin; 4. Discharge pipe; 401. Sliding groove; 402. Splash-proof baffle; 403. Damping slider. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1 - Figure 2 shown, a multi-stage slurry filtering device includes a main body 1 of the multi-stage filtering device. An outer filter net 2 is installed on the inner wall surface of the main body 1 of the multi-stage filtering device, and a fixed socket 201 is arranged on the bottom surface of the outer filter net 2. A connecting plate 202 is arranged on the inner wall surface of the fixed socket 201, and a spiral rotating rod 203 is rotatably installed on the upper end surface of the connecting plate 202. The advantage of this setting is that by arranging the spiral rotating rod 203, the slurry can be driven to move.

[0024] Furthermore, a rotating sleeve 204 is arranged on the upper surface of the spiral rotating rod 203, and a support frame 205 is arranged on the outer surface of the rotating sleeve 204. The advantage of this setting is that by arranging the support frame 205, the scraper 206 can be supported to ensure the stability of the scraper 206 when scraping the material.

[0025] Further, a scraper 206 is installed at the front end of the support frame 205, and the scraper 206 is frictionally connected to the inner wall of the outer filter screen 2. The advantage of this setting is that through the setting of the scraper 206, when the slurry passes through the inner filter screen 3 for filtration and enters the outer filter screen 2 for secondary filtration, the scraper 206 can scrape off the slurry on the surface of the inner wall of the outer filter screen 2, preventing the viscous slurry from adhering to the surface of the inner wall of the outer filter screen 2. If the slurry dries, it will be difficult to clean, affecting the normal filtration use of the outer filter screen 2.

[0026] As Figure 3 - Figure 4 shown, an inner filter screen 3 is installed at the upper end of the fixed socket 201. Connecting strips 301 are arranged on the outer circular surfaces on both sides of the inner filter screen 3, and a waste bin 303 is arranged below the inner filter screen 3. The advantage of this setting is that through the setting of the inner filter screen 3, the slurry can be filtered for the first time, and through the setting of the waste bin 303, the filtered waste can be received.

[0027] Further, a limiting plate 302 is slidably installed on the surface of the connecting strip 301. The advantage of this setting is that through the setting of the limiting plate 302, the two fitted inner filter screens 3 can be fixed, preventing loosening during filtration and also allowing the inner filter screen 3 to be opened regularly for cleaning.

[0028] Further, a discharge pipe 4 is arranged on the lower surface of the main body 1 of the multi-stage filtration device, and a sliding groove 401 is formed on the outer circular lower surface of the discharge pipe 4. A damping slider 403 is installed inside the sliding groove 401, and the damping slider 403 is slidably connected to the sliding groove 401. The advantage of this setting is that through the setting of the sliding groove 401, the anti-splash baffle 402 can be positioned during installation and can also be removed and cleaned after the anti-splash baffle 402 is used.

[0029] Further, an anti-splash baffle 402 is arranged on the rear end surface of the damping slider 403, and the anti-splash baffle 402 is arc-shaped. The advantage of this setting is that through the setting of the anti-splash baffle 402, it can prevent the discharged slurry from splashing onto the ground and causing pollution to the ground, and at the same time avoid waste of the slurry.

[0030] Working principle: When using the slurry multi-stage filtering device, first, after the slurry is fed into the inner part of the outer filter screen 2 inside the multi-stage filtering device body 1, the spiral rotating rod 203 is started to rotate, and the slurry is filtered through the inner filter screen 3. The filtered residue falls into the waste barrel 303 and is discharged from the multi-stage filtering device body 1. The slurry filtered through the inner filter screen 3 enters the inner part of the outer filter screen 2 for secondary filtration. At the same time, the support frame 205 set on the surface of the spiral rotating rod 203 drives the scraper 206 to scrape the inner part of the outer filter screen 2 to scrape off the slurry adhered to its inner wall. The slurry that has been filtered for multiple times is discharged through the discharge pipe 4. The splash guard 402 prevents the slurry from splashing, and the filtration is completed. When it is necessary to clean the inner filter screen 3, the limit plate 302 is pulled upward to release the restrictions of the two inner filter screens 3, and then the inner filter screen 3 is pulled out from the fixed socket 201 for cleaning. This is the working principle of the slurry multi-stage filtering device.

Claims

1. A multi-stage slurry filtration device, comprising a multi-stage filtration device main body (1), characterized in that, The inner wall surface of the multi-stage filtering device main body (1) is provided with an outer filter screen (2), and a fixed socket (201) is arranged on the bottom surface of the outer filter screen (2). A connecting plate (202) is arranged on the inner wall surface of the fixed socket (201), and a spiral rotating rod (203) is rotatably installed on the upper end surface of the connecting plate (202). A rotating sleeve (204) is arranged on the upper surface of the spiral rotating rod (203), and a support frame (205) is arranged on the outer surface of the rotating sleeve (204). A scraper (206) is installed at the front end of the support frame (205), and a frictional connection is provided between the scraper (206) and the inner wall of the outer filter screen (2).

2. The multi-stage filtration device for slurry according to claim 1, wherein An inner filter screen (3) is installed at the upper end of the fixed socket (201).

3. The slurry multi-stage filtration device according to claim 2, characterized in that, Connecting strips (301) are arranged on the outer circular two-side surfaces of the inner filter screen (3), and a waste bin (303) is arranged below the inner filter screen (3).

4. A multi-stage slurry filtration device according to claim 3, wherein A limiting plate (302) is slidably installed on the surface of the connecting strip (301).

5. A multi-stage filtration device for slurry according to claim 1, characterized in that, A discharge pipe (4) is arranged on the lower end surface of the multi-stage filtering device main body (1), and a sliding groove (401) is formed in the outer circular lower surface of the discharge pipe (4).

6. The multi-stage filtering device for slurry according to claim 5, characterized in that, A damping slider (403) is installed inside the sliding groove (401), and a sliding connection is provided between the damping slider (403) and the sliding groove (401).

7. A multi-stage slurry filtration device according to claim 6, characterized in that, A splash-proof baffle (402) is arranged on the rear end surface of the damping slider (403), and the splash-proof baffle (402) is arc-shaped.

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