A plate filter for water-based paints

Abstract

The utility model relates to water -based paint filtering technical field, and disclose a plate filter for water -based paint, including filter case and liquid inlet main pipe, the top of filter case even has set up multiple groups of recess, and the recess is provided with the filter frame that extends to the filter case inside through, the both sides of filter frame all are fixed with filter screen and install. Through even setting up multiple groups of recess on the top of filter case and setting up filter frame, can realize multiple filtering units work simultaneously, has improved the filtering efficiency greatly, can satisfy the filtering demand in the large -scale water -based paint production process, through the flange connection of liquid inlet pipe and connecting pipe, and install second valve on connecting pipe, multiple connecting pipes are linked with liquid inlet main pipe again, this structure makes can according to actual demand flexible control the liquid inlet condition of each filter frame, has improved the operation flexibility of equipment, and also is convenient to maintain or replace filter frame and filter screen.

Description

Technical Field

[0001] This utility model relates to the field of water-based coating filtration technology, specifically a plate filter for water-based coatings. Background Technology

[0002] In the production and application of water-based coatings, the filtration process is crucial, directly affecting the quality and performance of the coatings. Traditional filtration equipment often has limitations when processing water-based coatings. For example, the filtration structure may not be reasonable enough, resulting in low filtration efficiency and failing to meet the needs of large-scale production. Moreover, impurities tend to accumulate inside the filtration device during the filtration process, making them difficult to clean. This not only affects the filtration effect but may also shorten the service life of the equipment. In addition, the installation and maintenance of existing water-based coating filtration equipment are relatively cumbersome, increasing production costs and manpower input. To solve the above problems, we propose a plate filter for water-based coatings. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a plate filter for water-based coatings to solve the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a plate filter for water-based coatings, comprising a filter box and a main inlet pipe. The top of the filter box has multiple sets of grooves evenly distributed, and a filter frame is provided in each groove, extending through and into the interior of the filter box. Filter screens are fixedly installed on both sides of the filter frame. An mounting plate is welded to the top surface of the filter frame. An inlet pipe is provided on the top of the mounting plate, extending through the mounting plate and into the interior of the filter frame. A connecting pipe is installed at the other end of the inlet pipe via a flange. A second valve is installed on the connecting pipe. A discharge pipe is installed at the bottom of the filter frame. The main inlet pipe is located on the upper side of the filter box.

[0005] As a preferred embodiment of this utility model, the mounting plate matches the groove opened on the top of the filter box, and the mounting plate is installed in the groove opened on the top of the filter box by bolts.

[0006] As a preferred embodiment of this utility model, the bottom inner wall of the filter box, located directly below the filter frame, has a through hole for inserting a waste discharge pipe.

[0007] As a preferred embodiment of this utility model, a mounting base is fixedly installed on the bottom inner wall of the filter box at the through hole, and a sealing ring is installed on the top of the mounting base.

[0008] As a preferred embodiment of this utility model, a sealing seat is fixedly installed on the upper part of the outer ring of the discharge pipe, and a sealing groove matching the sealing ring is opened at the bottom of the sealing seat.

[0009] As a preferred embodiment of this utility model, the inner walls on both sides of the filter box are fixedly equipped with mounting rails corresponding to the filter frame, and the two sides of the filter frame are provided with guide grooves that match the mounting rails.

[0010] As a preferred embodiment of this utility model, multiple connecting pipes are connected to the main inlet pipe via flanges. A drain pipe is installed on the lower part of the filter box on one side of the front, and a first valve is installed on the drain pipe. Support legs are installed at the bottom of the filter box and near the four corners.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This plate filter for water-based coatings, by evenly opening multiple sets of grooves on the top of the filter box and setting filter frames, can realize the simultaneous operation of multiple filter units, greatly improving filtration efficiency and meeting the filtration needs of large-scale water-based coating production processes. The filter screens fixedly installed on both sides of the filter frame can effectively intercept impurities in the water-based coating, ensuring the quality of the filtered coating. Moreover, the top surface of the filter frame is welded with a mounting plate, which matches the grooves on the top of the filter box and is installed by bolts. This design makes the installation and disassembly of the filter frame very convenient, and facilitates the cleaning and replacement of the filter screen, reducing maintenance costs and time costs.

[0013] 2. This plate filter for water-based coatings uses a flange connection between the inlet pipe and the connecting pipe, with a second valve installed on the connecting pipe. Multiple connecting pipes are connected to the main inlet pipe. This structure allows for flexible control of the liquid inlet of each filter frame according to actual needs, improving the operational flexibility of the equipment. It also facilitates the maintenance or replacement of the filter frames and filter screens. The design of the bottom discharge pipe of the filter frame, the bottom through hole of the filter box, the sealing ring on the mounting base, and the sealing groove at the bottom of the sealing seat on the discharge pipe not only ensures the normal realization of the discharge function but also achieves a good sealing effect, preventing water-based coating leakage and avoiding resource waste and environmental pollution. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the filter box of this utility model;

[0016] Figure 3 This is a schematic diagram of the filter frame structure of this utility model.

[0017] In the diagram: 1. Filter box; 2. Support leg; 3. Drain pipe; 4. First valve; 5. Main inlet pipe; 6. Second valve; 7. Connecting pipe; 8. Inlet pipe; 9. Mounting plate; 10. Mounting guide rail; 11. Filter screen; 12. Mounting seat; 13. Sealing ring; 14. Filter frame; 15. Sealing seat; 16. Impurity discharge pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3 A plate filter for water-based coatings includes a filter box 1 and an inlet manifold 5. Multiple sets of grooves are evenly distributed on the top of the filter box 1. A filter frame 14, penetrating and extending into the interior of the filter box 1, is installed in each groove. Filter screens 11 are fixedly mounted on both sides of the filter frame 14 by welding or other fixing methods. The material and pore size of the filter screens 11 can be selected according to the characteristics of the water-based coatings to achieve good filtration. An mounting plate 9 is welded to the top surface of the filter frame 14. The mounting plate 9 matches the grooves on the top of the filter box 1. During installation, the mounting plate 9 is placed into the grooves and bolted into the grooves on the top of the filter box 1 to achieve initial fixation of the filter frame 14. A sealing gasket can be placed at the mounting point of the mounting plate 9.

[0020] An inlet pipe 8 is provided on the top of the mounting plate 9, penetrating the mounting plate 9 and extending into the filter frame 14. The inlet pipe 8 is connected to the inside of the filter frame 14 and is used to introduce the water-based coating to be filtered into the filter frame 14. The other end of the inlet pipe 8 is connected to a connecting pipe 7 through a flange. A second valve 6 is installed on the connecting pipe 7. By controlling the opening and closing of the second valve 6, the water-based coating can be controlled to enter the corresponding filter frame 14. Multiple connecting pipes 7 are connected to the main inlet pipe 5 through flanges. The main inlet pipe 5 is located on the upper side of the filter box 1. The water-based coating to be filtered first enters the main inlet pipe 5 and is then distributed to different filter frames 14 through the various connecting pipes 7.

[0021] A drain pipe 16 is installed at the bottom of the filter frame 14. A through hole for inserting the drain pipe 16 is opened on the bottom inner wall of the filter box 1 directly below the filter frame 14. A mounting base 12 is fixedly installed on the bottom inner wall of the filter box 1 at the through hole. A sealing ring 13 is installed on the top of the mounting base 12. A sealing seat 15 is fixedly installed on the upper part of the outer ring of the drain pipe 16. A sealing groove matching the sealing ring 13 is opened at the bottom of the sealing seat 15. When the filter frame 14 is installed in place, the drain pipe 16 is inserted into the through hole. The sealing groove at the bottom of the sealing seat 15 fits tightly with the sealing ring 13 at the top of the mounting base 12 to achieve a good sealing effect and prevent water-based coating leakage. During the filtration process, impurities will be deposited at the bottom of the filter frame 14 and can be discharged through the drain pipe 16.

[0022] The inner walls on both sides of the filter box 1 are fixedly equipped with mounting rails 10 corresponding to the filter frame 14. The filter frame 14 has guide grooves on both sides that match the mounting rails 10. When installing the filter frame 14, align the guide grooves on both sides of the filter frame 14 with the mounting rails 10 and place the filter frame 14 into the filter box 1 along the mounting rails 10. This ensures that the filter frame 14 is accurately installed and facilitates the installation and removal of the filter frame 14. A drain pipe 3 is installed on the lower part of the filter box 1 on the front side, and a first valve 4 is installed on the drain pipe 3. The filtered water-based coating is discharged from the drain pipe 3. The drain pipe 3 can be controlled to discharge liquid by controlling the first valve 4. Support legs 2 are installed at the bottom of the filter box 1 and near the four corners to support the entire filter and ensure its stability.

[0023] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3 The plate filter for water-based coatings in this embodiment has the same basic structure as that in Embodiment 1, but some details have been optimized. In the selection of filter screen 11, a new material with higher filtration accuracy and stronger corrosion resistance is adopted to meet the filtration needs of different types of water-based coatings. The welding process between the top surface of filter frame 14 and mounting plate 9 has been improved. More advanced welding technology is adopted to improve welding strength and sealing, and prevent leakage during the filtration process.

[0024] Regarding the connection between the mounting plate 9 and the top groove of the filter box 1, in addition to using bolts for fixing, a rubber gasket was added to the contact surface between the mounting plate 9 and the groove to further enhance the sealing effect and reduce loosening caused by vibration. A sealing gasket was added to the flange connection between the connecting pipe 7 and the liquid inlet pipe 8 and the main liquid inlet pipe 5 to prevent leakage at the connection.

[0025] The bottom of the discharge pipe 16 is connected to a detachable impurity collection bag. When impurities are discharged through the discharge pipe 16, they directly enter the impurity collection bag, which facilitates centralized treatment of impurities and avoids environmental pollution caused by direct discharge of impurities. The surfaces of the mounting guide rails 10 on both sides of the inner wall of the filter box 1 are polished to reduce the friction of the filter frame 14 during installation and disassembly, making the operation smoother.

[0026] Example 3: Please refer to Figure 1 , Figure 2 and Figure 3 Based on Embodiments 1 and 2, the plate filter in this embodiment adds intelligent control function. A flow sensor is installed on the main inlet pipe 5 to monitor the flow rate of the water-based coating entering the filter box 1 in real time. The second valve 6 on each connecting pipe 7 is an electric valve and is connected to the flow sensor and a central controller. The central controller automatically adjusts the opening degree of each electric valve according to the flow data fed back by the flow sensor, so that the liquid inlet of each filter frame 14 is uniform and the filtration efficiency is improved.

[0027] A pressure sensor is installed inside the filter box 1 to monitor pressure changes during the filtration process. When the pressure exceeds the set safety value, the central controller will automatically issue an alarm and take corresponding measures, such as closing some inlet valves, to prevent damage to the filtration equipment due to excessive pressure. At the same time, the first valve 4 on the drain pipe 3 is also an electric valve. The central controller can automatically control the opening and closing of the first valve 4 according to the liquid level in the filter box 1 to achieve automatic drainage.

[0028] In addition, a liquid level sensor is installed inside the filter frame 14 to monitor the liquid level inside the filter frame 14. When the liquid level is too high, the central controller will adjust the liquid inlet in time to prevent liquid overflow. Through these intelligent control functions, the automation level and operational stability of the plate filter are greatly improved, and the errors and labor intensity of manual operation are reduced.

[0029] Implementation effect: By evenly opening multiple sets of grooves on the top of the filter box 1 and setting filter frames 14, multiple filter units can work simultaneously, which greatly improves the filtration efficiency and can meet the filtration needs in the large-scale water-based coating production process. The filter screens 11 fixedly installed on both sides of the filter frame 14 can effectively intercept impurities in the water-based coating and ensure the quality of the filtered coating. In addition, the top surface of the filter frame 14 is welded with a mounting plate 9, which matches the grooves on the top of the filter box 1 and is installed by bolts. This design makes the installation and disassembly of the filter frame 14 very convenient, and facilitates the cleaning and replacement of the filter screens 11, reducing maintenance costs and time costs.

[0030] The inlet pipe 8 is connected to the connecting pipe 7 via a flange, and a second valve 6 is installed on the connecting pipe 7. Multiple connecting pipes 7 are connected to the main inlet pipe 5. This structure allows for flexible control of the liquid inlet status of each filter frame 14 according to actual needs, improving the operational flexibility of the equipment. It also facilitates the maintenance or replacement of the filter frame 14 and the filter screen 11. The design of the bottom discharge pipe 16 of the filter frame 14, the bottom through hole of the filter box 1, the sealing ring 13 on the mounting base 12, and the bottom sealing groove of the sealing seat 15 on the discharge pipe 16 not only ensures the normal realization of the discharge function but also achieves a good sealing effect, preventing water-based coating leakage and avoiding resource waste and environmental pollution.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate filter for water-based paints, comprising a filter tank (1) and a liquid inlet main (5), characterized in that: The top of the filter box (1) has a number of grooves evenly distributed, and a filter frame (14) is provided in the groove, which extends through and into the filter box (1). Filter screens (11) are fixedly installed on both sides of the filter frame (14). A mounting plate (9) is welded to the top surface of the filter frame (14). An inlet pipe (8) is provided on the top of the mounting plate (9), which extends through the mounting plate (9) and into the filter frame (14). A connecting pipe (7) is installed at the other end of the inlet pipe (8) through a flange. A second valve (6) is installed on the connecting pipe (7). A waste discharge pipe (16) is installed at the bottom of the filter frame (14). The main inlet pipe (5) is located on the upper side of the filter box (1).

2. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: The mounting plate (9) matches the groove opened on the top of the filter box (1), and the mounting plate (9) is installed in the groove opened on the top of the filter box (1) by bolts.

3. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: The bottom inner wall of the filter box (1) and directly below the filter frame (14) has a through hole for inserting the waste discharge pipe (16).

4. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: A mounting base (12) is fixedly installed on the bottom inner wall of the filter box (1) at the through hole, and a sealing ring (13) is installed on the top of the mounting base (12).

5. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: A sealing seat (15) is fixedly installed on the upper part of the outer ring of the discharge pipe (16), and a sealing groove matching the sealing ring (13) is opened at the bottom of the sealing seat (15).

6. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: The filter box (1) has mounting rails (10) on both sides of its inner walls that are fixedly installed with respect to the filter frame (14). The filter frame (14) has guide grooves on both sides that match the mounting rails (10).

7. A plate and frame filter for waterborne coatings according to claim 1, characterized in that: Multiple connecting pipes (7) are connected to the main inlet pipe (5) via flanges. A drain pipe (3) is installed on the lower part of the filter box (1) on the front side, and a first valve (4) is installed on the drain pipe (3). Support legs (2) are installed at the bottom of the filter box (1) and near the four corners.

Images