Integrated device for on-line filtering and impurity removal in paint production

Abstract

The utility model relates to the technical field of paint production equipment, and disclose a paint production on -line filtering and impurity removal integrated equipment, including the feed pipe of intercommunication in paint production line, and the filter assembly is equipped with in feed pipe one side, and the filter assembly is used for the paint filtering and impurity removal, the filter assembly one side is equipped with the storage tank, and the storage tank one side is equipped with the stirring assembly, the stirring assembly one side is equipped with the cleaning assembly, the filter assembly includes first connecting pipe and second connecting pipe, through adopting "one use one spare " mode, when the first connecting pipe appears filter screen blockage etc.

Description

Technical Field

[0001] This utility model relates to the technical field of coating production equipment, specifically to an integrated online filtration and impurity removal device for coating production. Background Technology

[0002] Paint is applied to the surface of an object to be protected or decorated, and forms a continuous film that adheres firmly to the object. It is usually based on resin, oil, or emulsion, with or without pigments and fillers, and with appropriate additives.

[0003] In the paint production process, filtration and impurity removal are key steps to ensure paint quality. If impurities are present in the paint, it will affect the paint's performance. Existing paint production filtration equipment has many problems. Most filtration equipment adopts a single filtration channel design. When the filter screen in the filtration channel becomes clogged, the entire filtration process will be forced to stop, preventing the paint from passing through the filter screen smoothly. Production must be stopped to clean or replace the filter screen, which affects production efficiency. Therefore, an integrated online filtration and impurity removal equipment for paint production is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an integrated online filtration and impurity removal device for coating production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated online filtration and impurity removal device for paint production, including a feed pipe connected to the paint production line, and a filter assembly provided on one side of the feed pipe, the filter assembly being used to filter and remove impurities from the paint; The filter assembly is provided with a storage tank on one side, and a stirring assembly is provided with a stirring tank on the other side. A cleaning component is provided on one side of the stirring assembly; The filter assembly includes a first connecting pipe and a second connecting pipe, and a first filter screen and a second filter screen are fixed to the inner walls of the first connecting pipe and the second connecting pipe in sequence. The storage tank is equipped with an exhaust valve on the top, which is used to discharge the gas inside the storage tank. A second discharge pipe is connected to one side of the bottom of the storage tank, and a valve is installed on the second discharge pipe.

[0006] Preferably, the inlet and outlet ends of the first and second connecting pipes are both connected to a third connecting pipe via flanges, and a pressure gauge is installed on the third connecting pipe. A first ball valve and a second ball valve are respectively installed on the third connecting pipe. The first ball valve is located at the discharge end of the first connecting pipe and the second connecting pipe, and the second ball valve is located at the feed end of the first connecting pipe and the second connecting pipe.

[0007] Preferably, the inlet ends of the two third connecting pipes are connected to the outlet ends of the inlet pipe via a tee, and the outlet ends of the two third connecting pipes connected to the outlet ends of the first and second connecting pipes are connected to the first outlet pipe via a tee. The discharge end of the first discharge pipe is connected to the storage tank.

[0008] Preferably, the stirring assembly includes a motor and a gear reducer, wherein the output shaft of the motor is fixed to the input shaft of the gear reducer, and a rotating shaft is fixed to the output shaft of the gear reducer.

[0009] Preferably, the outer side of the rotating shaft is rotatably connected to the inner wall of the storage tank via a sealed bearing, and several stirring blades are fixed on the outer side of the rotating shaft.

[0010] Preferably, the motor and gear reducer are located outside the storage tank, and the motor and gear reducer are connected to the ground by bolts.

[0011] Preferably, the cleaning component includes a liquid storage tank, a feeding pipe at the top of the liquid storage tank, the liquid storage tank is used to store cleaning liquid, a water pump is installed at the bottom of the inner wall of the liquid storage tank, and a first water pipe is fixed to the outlet end of the water pump.

[0012] Preferably, the outlet end of the first water pipe is connected to two third water pipes via a tee, and the outlet ends of the third water pipes are respectively connected to the first connecting pipe and the second connecting pipe, and a fourth ball valve is installed on the third water pipe.

[0013] Preferably, a second water pipe is connected to one side of both the first connecting pipe and the second connecting pipe, and a third ball valve is installed on the second water pipe.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: 1. By adopting a "one-in-use, one-out-of-use" mode, when the filtration effect is affected by problems such as filter screen blockage in the first connecting pipe, the system can quickly switch to the second connecting pipe for online impurity removal. This ensures that the filtration and impurity removal process in paint production is uninterrupted, improves production efficiency, and reduces production downtime caused by equipment failure. The paint passes through the first coarse filter and the second fine filter in the first connecting pipe in sequence, completing two-stage filtration and impurity removal, thereby improving the purity of the paint.

[0015] 2. After the first connecting pipe stops filtering, the cleaning component is used to backwash it. The cleaning solution in the storage tank is drawn out by the water pump and flows back into the first connecting pipe through a specific pipeline to backwash the clogged first and second filter screens. This can effectively wash away the impurities attached to the filter screens, restore the filtering performance of the filter screens, extend the service life of the filter screens, and reduce replacement costs.

[0016] Third, during the process of the paint entering the storage tank, the exhaust valve installed on the top of the storage tank can promptly discharge the gas generated by the paint entering. Subsequently, the motor output shaft drives the input shaft of the gear reducer to rotate, which in turn drives the stirring blades to rotate and stir, so that the paint in the storage tank is continuously mixed, avoiding the difference in paint performance caused by sedimentation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view structure of the present invention; Figure 3 This is a schematic diagram of the filter screen structure of this utility model; Figure 4 This is a schematic diagram of the structure of the second water pipe of this utility model; Figure 5 This is a schematic diagram of the structure of the first water pipe of this utility model; Figure 6 This is a schematic diagram of the main cross-sectional structure of the storage tank of this utility model; Figure 7 This is a schematic diagram of the main cross-sectional structure of the liquid storage tank of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Feed pipe; 2. Filter assembly; 21. First connecting pipe; 22. Second connecting pipe; 23. Pressure gauge; 24. First ball valve; 25. Second ball valve; 26. First filter screen; 27. Second filter screen; 28. Third connecting pipe; 3. First discharge pipe; 4. Storage tank; 41. Exhaust valve; 42. Second discharge pipe; 5. Agitator assembly; 51. Gear reducer; 52. Motor; 53. Shaft; 54. Agitator blades; 6. Cleaning assembly; 61. Liquid storage tank; 62. Water pump; 63. First water pipe; 64. Third ball valve; 65. Second water pipe; 66. Fourth ball valve; 67. Third water pipe. 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. 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.

[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0022] Example Please see Figure 1-7 This utility model provides a technical solution: an integrated online filtration and impurity removal equipment for paint production, including a feed pipe 1 connected to the paint production line, a filter assembly 2 on one side of the feed pipe 1, the filter assembly 2 being used to filter and remove impurities from the paint; a storage tank 4 on one side of the filter assembly 2, a stirring assembly 5 on one side of the storage tank 4; and a cleaning assembly 6 on one side of the stirring assembly 5. The filter assembly 2 includes a first connecting pipe 21 and a second connecting pipe 22. Using the first connecting pipe 21, the first ball valve 24 and the second ball valve 25 at its inlet and outlet are opened, while the valves of the second connecting pipe 22 are closed. The inner walls of the first connecting pipe 21 and the second connecting pipe 22 are respectively fixed with a first filter screen 26 and a second filter screen 27. The first filter screen 26 is a coarse filter screen with a filtration accuracy between 5 and 50 mesh, and the second filter screen 27 is a fine filter screen with a filtration accuracy between 80 and 200 mesh. The filtered clean coating enters the storage tank 4 through the first discharge pipe 3.

[0023] The inlet and outlet ends of the first connecting pipe 21 and the second connecting pipe 22 are both connected to a third connecting pipe 28 via flanges. A pressure gauge 23 is installed on the third connecting pipe 28 to monitor the pressure difference. When the pressure difference is greater than 0.5 MPa, the filter screen is backwashed. A first ball valve 24 and a second ball valve 25 are installed on the third connecting pipe 28. The first ball valve 24 is located at the outlet end of the first connecting pipe 21 and the second connecting pipe 22, and the second ball valve 25 is located at the inlet end of the first connecting pipe 21 and the second connecting pipe 22. The operator can close the valve of the first connecting pipe 21 and open the valve of the second connecting pipe 22 without interrupting the production line, switching the filtration task to the standby pipeline to ensure continuous production.

[0024] The inlet ends of the two third connecting pipes 28 are connected to the outlet ends of the inlet pipe 1 via a tee. The outlet ends of the two third connecting pipes 28, which are connected to the outlet ends of the first connecting pipe 21 and the second connecting pipe 22, are connected to the first outlet pipe 3 via a tee. The outlet end of the first outlet pipe 3 is connected to the storage tank 4.

[0025] The storage tank 4 is equipped with an exhaust valve 41 on its top. The exhaust valve 41 is used to discharge the gas inside the storage tank 4. The exhaust valve 41 is an automatic pressure relief valve. Multiple storage tanks 4 can be connected in parallel (not shown in the figure). Pipes are connected between the storage tanks 4. Switching valves are installed on the pipes for storing large amounts of paint. A second discharge pipe 42 is connected to one side of the bottom of the storage tank 4. A valve is installed on the second discharge pipe 42. An observation window is provided on one side of the storage tank 4 to observe the paint level inside the storage tank 4.

[0026] The mixing assembly 5 includes a motor 52 and a gear reducer 51. The output shaft of the motor 52 is fixed to the input shaft of the gear reducer 51. A rotating shaft 53 is fixed to the output shaft of the gear reducer 51. The mixing assembly 5 prevents sedimentation, and the mixing can keep the coating uniform and restore its fluidity. The outer side of the rotating shaft 53 is rotatably connected to the inner wall of the storage tank 4 through a sealed bearing. Several mixing blades 54 are fixed to the outer side of the rotating shaft 53. The motor 52 and the gear reducer 51 are located on the outer side of the storage tank 4, and the motor 52 and the gear reducer 51 are connected to the ground by bolts.

[0027] Cleaning component 6 includes a storage tank 61 with a feeding pipe at the top. The storage tank 61 stores cleaning fluid. A water pump 62 is installed at the bottom of the inner wall of the storage tank 61. A first water pipe 63 is fixed to the outlet of the water pump 62. The outlet of the first water pipe 63 is connected to two third water pipes 67 via a T-junction. The outlets of the third water pipes 67 are respectively connected to a first connecting pipe 21 and a second connecting pipe 22. A fourth ball valve 66 is installed on the third water pipes 67. When the first connecting pipe 21 is switched to standby mode, the cleaning program is started. Turn on the water pump 62 to pump out the cleaning solution in the storage tank 61, and inject it into the first connecting pipe 21 through the first water pipe 63 and the corresponding third water pipe 67. The flow direction of the cleaning solution is opposite to the direction of paint filtration, flushing the impurities that are blocked on the first filter screen 26 and the second filter screen 27 from the inside out. The waste liquid carrying the impurities is discharged from the second water pipe 65 at the feed end of the first connecting pipe 21. After rinsing, close all valves and wait for the pipeline to be used again. The cleaning process of the second connecting pipe 22 is the same, and the rinsing time is ≥30 seconds.

[0028] A second water pipe 65 is connected to one side of both the first connecting pipe 21 and the second connecting pipe 22. A third ball valve 64 is installed on the second water pipe 65. The second water pipe 65 is installed on the feed end side of the first connecting pipe 21 and the second connecting pipe 22 and is used to discharge backwash liquid.

[0029] Working principle: The paint flows in from the feed pipe 1 and is split through the tee to the first connecting pipe 21 and the second connecting pipe 22 of the two sets of parallel filter pipes. During normal operation, the "one in use and one in standby" mode is adopted. First, open the first ball valve 24 and the second ball valve 25 on the third connecting pipe 28 located at both ends of the first connecting pipe 21. At this time, the paint flows out from the discharge end of the feed pipe 1 and enters the first connecting pipe 21 through the third connecting pipe 28 connected to the feed end of the first connecting pipe 21. The paint passes through the first filter screen 26 for coarse filtration and the second filter screen 27 for fine filtration in the first connecting pipe 21 in sequence, completing two-stage filtration and impurity removal. After double filtration, the paint flows out from the third connecting pipe 28 connected to the discharge end of the first connecting pipe 21 and then enters the storage tank 4 for storage through the first discharge pipe 3.

[0030] During the filtration and impurity removal process of the coating through the first connecting pipe 21, the pressure gauge 23 installed on the third connecting pipe 28 monitors the pressure difference in real time. When the pressure gauge 23 shows a large pressure difference, it indicates that the first filter screen 26 or the second filter screen 27 in the first connecting pipe 21 may be clogged, affecting the filtration effect. At this time, the first ball valve 24 and the second ball valve 25 on the third connecting pipe 28 at both ends of the first connecting pipe 21 are closed, and then the first ball valve 24 and the second ball valve 25 on the third connecting pipe 28 at both ends of the second connecting pipe 22 are opened, so that the coating is removed online through the second connecting pipe 22. This realizes the function of one-for-one backup of online equipment, ensuring that the filtration and impurity removal process of coating production is uninterrupted. After the first connecting pipe 21 stops filtering, the cleaning assembly 6 is used to backwash the clogged first filter screen 26 and second filter screen 27. First, the water pump 62 installed at the bottom of the inner wall of the storage tank 61 is turned on. The water pump 62 draws out the cleaning solution stored in the storage tank 61 and delivers it through the first water pipe 63. The outlet of the first water pipe 63 is connected to two third water pipes 67 through a tee. The cleaning solution enters the first connecting pipe 21 through the third water pipes 67. The fourth ball valve 66 on the third water pipe 67 connected to the first connecting pipe 21 is opened, and the first connecting pipe is opened at the same time. The third ball valve 64 on the second water pipe 65 connected to one side of 21 allows the cleaning fluid to flow back from the discharge end of the first connecting pipe 21 to backwash the first filter screen 26 and the second filter screen 27, washing away the impurities clogging the filter screens. The flushed liquid is discharged from the second water pipe 65. The inlet and outlet ends of the first connecting pipe 21 and the second connecting pipe 22 are both connected to the third connecting pipe 28 via flanges. When necessary, the first connecting pipe 21 or the second connecting pipe 22 can be disassembled and maintained periodically to facilitate the replacement or further cleaning of the filter screens.

[0031] During the process of the paint entering the storage tank 4, the exhaust valve 41 installed on the top of the storage tank 4 can discharge the gas generated inside the storage tank 4 due to the paint entering, ensuring that the pressure inside the storage tank 4 is stable. When the paint stored in the storage tank 4 needs to be used, the valve installed on the second discharge pipe 42 connected to the bottom side of the storage tank 4 is opened, and the paint can flow out from the second discharge pipe 42 for subsequent use. The motor 52 is started, and its output shaft drives the input shaft of the gear reducer 51 to rotate. After the gear reducer 51 reduces speed and increases torque, its output shaft drives the rotating shaft 53 to rotate. The outer side of the rotating shaft 53 is rotatably connected to the inner wall of the storage tank 4 through a sealed bearing. Several stirring blades 54 are fixed on the outer side of the rotating shaft 53. The rotation of the rotating shaft 53 drives the stirring blades 54 to rotate inside the storage tank 4, stirring the paint in the storage tank 4. Stirring can prevent the paint from settling, keep the paint uniform, and restore the fluidity of the paint that may have decreased due to long-term storage. The motor 52 and the gear reducer 51 are located on the outer side of the storage tank 4 and are bolted to the ground to ensure stable operation of the equipment.

[0032] In summary, by adopting a "one-in-use, one-out-of-use" mode, when problems such as filter clogging occur in the first connecting pipe 21 and affect the filtration effect, the system can quickly switch to the second connecting pipe 22 for online impurity removal. This ensures that the filtration and impurity removal process in paint production is uninterrupted, improves production efficiency, and reduces production downtime caused by equipment failure. The paint passes through the first coarse filter 26 and the second fine filter 27 in the first connecting pipe 21 in sequence, completing two-stage filtration and impurity removal, thereby improving the purity of the paint.

[0033] After the first connecting pipe 21 stops filtering, the cleaning component 6 is used to backwash it. The cleaning liquid in the storage tank 61 is drawn out by the water pump 62 and flows back into the first connecting pipe 21 through a specific pipeline. This backwashes the clogged first filter screen 26 and second filter screen 27, effectively washing away the impurities attached to the filter screen, restoring the filter screen's filtering performance, extending the filter screen's service life, and reducing replacement costs.

[0034] During the process of the paint entering the storage tank 4, the exhaust valve 41 installed on the top of the storage tank 4 can promptly discharge the gas generated by the paint entering. Subsequently, the output shaft of the motor 52 drives the input shaft of the gear reducer 51 to rotate, which in turn drives the stirring blades 54 to rotate and stir, so that the paint in the storage tank 4 is continuously mixed, avoiding the difference in paint performance caused by sedimentation.

[0035] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An integrated online filtration and impurity removal device for paint production, comprising a feed pipe (1) connected to the paint production line, characterized in that, A filter assembly (2) is provided on one side of the feed pipe (1), and the filter assembly (2) is used to filter and remove impurities from the coating. The filter assembly (2) is provided with a storage tank (4) on one side, and a stirring assembly (5) is provided on one side of the storage tank (4). A cleaning component (6) is provided on one side of the stirring component (5); The filter assembly (2) includes a first connecting pipe (21) and a second connecting pipe (22), and a first filter screen (26) and a second filter screen (27) are fixed to the inner walls of the first connecting pipe (21) and the second connecting pipe (22) in sequence. The storage tank (4) is equipped with an exhaust valve (41) on top, which is used to discharge the gas inside the storage tank (4); The bottom side of the storage tank (4) is connected to a second discharge pipe (42), and a valve is installed on the second discharge pipe (42).

2. The integrated online filtration and impurity removal equipment for paint production according to claim 1, characterized in that, The inlet and outlet ends of the first connecting pipe (21) and the second connecting pipe (22) are both connected to a third connecting pipe (28) via flanges. A pressure gauge (23) is installed on the third connecting pipe (28). The third connecting pipe (28) is equipped with a first ball valve (24) and a second ball valve (25). The first ball valve (24) is located at the discharge end of the first connecting pipe (21) and the second connecting pipe (22), and the second ball valve (25) is located at the feed end of the first connecting pipe (21) and the second connecting pipe (22).

3. The integrated online filtration and impurity removal equipment for coating production according to claim 2, characterized in that, The inlet ends of the two third connecting pipes (28) are connected to the outlet end of the inlet pipe (1) through a tee. The outlet ends of the two third connecting pipes (28) connected to the outlet ends of the first connecting pipe (21) and the second connecting pipe (22) are connected to the first outlet pipe (3) through a tee. The discharge end of the first discharge pipe (3) is connected to the storage tank (4).

4. The integrated online filtration and impurity removal equipment for paint production according to claim 1, characterized in that, The stirring assembly (5) includes a motor (52) and a gear reducer (51). The output shaft of the motor (52) is fixed to the input shaft of the gear reducer (51), and a rotating shaft (53) is fixed to the output shaft of the gear reducer (51).

5. The integrated online filtration and impurity removal equipment for coating production according to claim 4, characterized in that, The outer side of the rotating shaft (53) is rotatably connected to the inner wall of the storage tank (4) through a sealed bearing, and several stirring blades (54) are fixed on the outer side of the rotating shaft (53).

6. The integrated online filtration and impurity removal equipment for coating production according to claim 5, characterized in that, The motor (52) and gear reducer (51) are located on the outside of the storage tank (4), and the motor (52) and gear reducer (51) are connected to the ground by bolts.

7. The integrated online filtration and impurity removal equipment for paint production according to claim 1, characterized in that, The cleaning component (6) includes a storage tank (61), the top of which is provided with a feeding pipe. The storage tank (61) is used to store cleaning fluid. A water pump (62) is installed at the bottom of the inner wall of the storage tank (61), and a first water pipe (63) is fixed at the outlet end of the water pump (62).

8. The integrated online filtration and impurity removal equipment for paint production according to claim 7, characterized in that, The first water pipe (63) has two third water pipes (67) connected to its outlet end via a tee. The outlet ends of the third water pipes (67) are connected to the first connecting pipe (21) and the second connecting pipe (22) respectively. A fourth ball valve (66) is installed on the third water pipe (67).

9. The integrated online filtration and impurity removal equipment for coating production according to claim 8, characterized in that, The first connecting pipe (21) and the second connecting pipe (22) are both connected to a second water pipe (65) on one side, and a third ball valve (64) is installed on the second water pipe (65).

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