A spraying tank filtering device in a powder spraying coating process

Abstract

The utility model relates to mechanical technical field discloses a kind of spray tank filter devices in powder spraying process, the utility model includes;Spray tank, for flushing pretreatment to coating workpiece, inside is equipped with spray head;Recycling water tank, it is set in the bottom of the spray tank, forms height difference and is convenient for water in spray tank to return to the recycling water tank inside;Filtering portion, the spray tank and the recycling water tank are communicated, and the filtering portion water inlet is located in the lowest place of the inner bottom wall in the spray tank, convenient for water collection backflow, the filtering portion is inlaid with filter residue collection pipe, the filter residue collection pipe carries out solid-liquid separation to the water after flushing.The utility model uses the filter pipe design of inside and outside suit, it is convenient to filter, and after the solid residue is accumulated, it is convenient to operate in the outside of spray tank, after opening residue discharge cover, the accumulated solid residue is discharged downward, further auxiliary cleaning can be carried out to the inner wall of filter residue collection pipe by cleaning portion.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a spray tank filtration device in a powder coating process. Background Technology

[0002] Before powder coating, if the workpiece needs to be sprayed and cleaned, this process is usually carried out in a spray tank. The water used for rinsing is pressurized by a pump and sprayed out through the spray head. The spray water is collected at the bottom of the spray tank and recycled to the recycling tank through pipes. A filter device is usually installed at the inlet of the tank to filter out the metal slag washed down by the spraying to prevent the pump from clogging. The filter device is usually located inside the spray tank and needs to be removed by workers to clean or replace it, which is inconvenient to operate. Utility Model Content

[0003] This utility model provides a spray tank filtration device for powder coating process to solve the technical problems mentioned in the background art.

[0004] The present invention adopts the following technical solution to solve the above-mentioned technical problems: A spray tank filtration device for powder coating process, comprising: A spray tank is used for rinsing and pre-treating coated workpieces, and is equipped with spray heads inside. A water recovery tank is located at the bottom of the spray tank, creating a height difference to facilitate the return of water from the spray tank to the water recovery tank. The filter section connects the spray tank and the recovery water tank, with the inlet of the filter section located at the lowest point of the bottom wall of the spray tank for easy water collection and return. A filter slag collection pipe is nested within the filter section, performing solid-liquid separation on the flushed water. The separated water returns to the recovery water tank, while the solid slag is collected at the bottom of the filter slag collection pipe for periodic processing. The slag discharge port of the filter slag collection pipe is located outside the spray tank and is detachably covered, facilitating worker operation and eliminating the need to probe into the spray tank as required by existing technologies, making it more convenient and simpler.

[0005] Preferably, the filtration unit includes a water recovery pipe and a filter sludge collection pipe, wherein the water recovery pipe has at least one vertical section, the filter sludge collection pipe is embedded in the vertical section of the water recovery pipe and extends downward from the water recovery pipe, the connection between the filter sludge collection pipe and the water recovery pipe is sealed, the filter sludge collection pipe includes a filter section located inside the water recovery pipe and a sludge collection section extending outside the water recovery pipe, the filter section is provided with filter holes for solid-liquid separation, solid sludge accumulates in the sludge collection section and is periodically treated, the arrangement of the filter sludge collection pipe allows the filter section and the water recovery pipe to have a long vertical overlap, thereby forming a larger filtration area than a planar filter screen, resulting in a more durable water filtration effect.

[0006] Preferably, the lower end of the filter slag collection pipe is provided with threads, and a slag discharge cover is detachably connected to it via the threads. When the slag discharge cover is threaded, the lower end of the filter slag collection pipe is sealed, and solid slag is accumulated in the slag collection pipe section. It is cleaned periodically, and water is filtered through the filter pipe section into the water recovery pipe and then flows back to the recovery water tank.

[0007] Preferably, it also includes a cleaning section, which includes several supports fixed to the inner wall of the spray tank. The upper and lower supports are fitted with linear sliding bearings. The insertion rod cooperates with the linear sliding bearings and can slide up and down. The lower end of the insertion rod is fixed with a cleaning head. After the cleaning head is inserted into the filter slag collection pipe, it contacts the inner wall of the filter slag collection pipe to clean the solid slag on the inner wall and discharge it to the lower end discharge port of the filter slag collection pipe.

[0008] Preferably, the cleaning head is a cylindrical rubber structure with a diameter that matches the inner diameter of the filter collection tube. After insertion, the cleaning head pushes the solid residue on the inner wall of the filter collection tube downwards and discharges it. The cleaning head can also be other cleaning structures, such as a brush ball.

[0009] Preferably, the cleaning unit further includes at least one bracket for fixing a magnetic ring. The bracket is fixed to the inner wall of the spray tank. The magnetic ring contacts the insertion rod and holds the insertion rod at a specified height through magnetic attraction. In the non-cleaning state, the cleaning head is kept separate from the filter collection pipe, which facilitates the spray water to enter the filter collection pipe.

[0010] The advantages of this utility model are: the use of an inner and outer set of filter pipes facilitates filtration, and it is convenient to operate outside the spray tank after the solid slag has accumulated. After opening the slag discharge cover, the accumulated solid slag can be discharged downwards. The inner wall of the filter slag collection pipe can also be further cleaned through the cleaning part. Compared with the existing spray tank filtration device, which requires probing into the tank for operation, this is more convenient and efficient. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model (partial cross-section); Figure 3 This is a schematic diagram of the structure of this utility model (partial cross-section, partial enlargement).

[0013] The markings in the attached diagram are described as follows: 10. Spray tank; 11. Recycled water tank; 12. Cleaning section; 13. Filtration section; 14. Insert rod; 15. Support; 16. Linear sliding bearing; 17. Magnetic ring; 18. Cleaning head; 19. Filter slag collection pipe; 20. Water recovery pipe; 21. Slag discharge cover; 22. Slag collection pipe section; 23. Filter pipe section. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings: like Figure 1-3 As shown, the spray tank filtration device in the powder coating process of this utility model includes: Spray tank 10 is used for rinsing and pre-treating coated workpieces, and is equipped with spray heads inside; A water recovery tank 11 is located at the bottom of the spray tank 10, forming a height difference to facilitate the return of water in the spray tank 10 to the water recovery tank 11. The filter section 13 connects the spray tank 10 and the recovery water tank 11. The inlet of the filter section 13 is located at the lowest point of the inner bottom wall of the spray tank 10 for easy water collection and return. A filter slag collection pipe 19 is nested inside the filter section 13. The filter slag collection pipe 19 performs solid-liquid separation on the flushed water. The separated water returns to the recovery water tank 11, and the solid slag is collected at the bottom of the filter slag collection pipe 19 for periodic treatment. The slag discharge port of the filter slag collection pipe 19 is located outside the spray tank 10. The slag discharge port of the filter slag collection pipe 19 is detachably covered, which facilitates worker operation and eliminates the need to probe into the spray tank 10 as required by existing technologies, making it more convenient and simple.

[0015] Preferably, the filtration section 13 includes a water recovery pipe 20 and a filter collection pipe 19, wherein the water recovery pipe 20 has at least one vertical section, the filter collection pipe 19 is embedded in the vertical section of the water recovery pipe 20 and extends downward from the water recovery pipe 20, the connection between the filter collection pipe 19 and the water recovery pipe 20 is sealed, and the filter collection pipe 19 includes a filter section 23 located inside the water recovery pipe 20 and a collection pipe section 22 extending outside the water recovery pipe 20 (e.g., a filter collection pipe 23). Figure 3 The filter pipe section 23 is provided with filter holes for solid-liquid separation. Solid residue accumulates in the residue collection pipe section 22 and is processed periodically. The filter residue collection pipe 19 is designed so that the filter pipe section 23 and the water recovery pipe 20 have a long vertical overlap, thereby forming a larger filtration area than a planar filter screen and forming a more durable water filtration effect.

[0016] Preferably, the lower end of the filter slag collection pipe 19 is provided with threads, and a slag discharge cover 21 is detachably connected to it via the threads. When the slag discharge cover 21 is threaded, the lower end of the filter slag collection pipe 19 is sealed, and solid slag is accumulated in the slag collection pipe section 22 and cleaned periodically. Water is filtered through the filter pipe section 23 into the water recovery pipe 20 and then flows back to the recovery water tank 11.

[0017] Preferably, it also includes a cleaning section 12, which includes several supports 15. The supports 15 are fixed to the inner wall of the spray tank 10. Linear sliding bearings 16 are embedded in the upper and lower supports 15. The insertion rod 14 cooperates with the linear sliding bearings 16 and can slide up and down. A cleaning head 18 is fixed at the lower end of the insertion rod 14. After the cleaning head 18 is inserted into the filter slag collection pipe 19, it contacts the inner wall of the filter slag collection pipe 19 to clean the solid slag on the inner wall and discharge it to the lower end discharge port of the filter slag collection pipe 19.

[0018] Preferably, the cleaning head 18 is a cylindrical rubber structure, and the diameter of the cleaning head 18 is the same as the inner diameter of the filter slag collection tube 19. After insertion, the cleaning head 18 pushes the solid slag on the inner wall of the filter slag collection tube 19 downward to discharge it. The cleaning head 18 can also be other cleaning structures such as a brush ball.

[0019] Preferably, the cleaning section 12 further includes at least one bracket 15 for fixing the magnetic ring 17. The bracket 15 is fixed to the inner wall of the spray tank 10. The magnetic ring 17 contacts the insertion rod 14 and holds the insertion rod 14 at a specified height through magnetic attraction. In the non-cleaning state, the cleaning head 18 is kept separate from the filter collection pipe 19 to facilitate the spray water to enter the filter collection pipe 19.

[0020] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A spray booth filtration device in a powder coating process, characterized by: include; Spray tank (10) is used to rinse and pre-treat the coated workpieces, and is equipped with spray heads inside; A water recycling tank (11) is located at the bottom of the spray tank (10), forming a height difference; The filter section (13) connects the spray tank (10) and the recovery water tank (11), and the water inlet of the filter section (13) is located at the lowest point of the bottom wall of the spray tank (10). A filter slag collection pipe (19) is nested inside the filter section (13), and the slag discharge port of the filter slag collection pipe (19) is located outside the spray tank (10). The slag discharge port of the filter slag collection pipe (19) is detachably covered.

2. The filter device for spray booth in powder coating process according to claim 1, characterized in that: The filtration section (13) includes a water recovery pipe (20) and a filter sludge collection pipe (19), wherein the water recovery pipe (20) has at least one section that is a vertical pipe, the filter sludge collection pipe (19) is embedded in the vertical pipe section of the water recovery pipe (20) and extends downward from the water recovery pipe (20), the connection between the filter sludge collection pipe (19) and the water recovery pipe (20) is sealed, the filter sludge collection pipe (19) includes a filter pipe section (23) located inside the water recovery pipe (20) and a sludge collection pipe section (22) extending outside the water recovery pipe (20), the filter pipe section (23) is provided with filter holes for solid-liquid separation.

3. A spray booth filtration device for use in a powder coating process according to claim 2, wherein: The lower end of the filter slag collection pipe (19) is provided with threads, and a slag discharge cover (21) is detachably connected by the threads. When the slag discharge cover (21) is threaded, the lower end of the filter slag collection pipe (19) is sealed.

4. The filter device for spray booth in powder coating process according to claim 1, characterized in that: It also includes a cleaning section (12), which includes several supports (15). The supports (15) are fixed to the inner wall of the spray tank (10). The upper and lower supports (15) are fitted with linear sliding bearings (16). The insertion rod (14) cooperates with the linear sliding bearings (16) and can slide up and down. The lower end of the insertion rod (14) is fixed with a cleaning head (18). After the cleaning head (18) is inserted into the filter slag collection pipe (19), it contacts the inner wall of the filter slag collection pipe (19) to clean the solid slag on the inner wall and discharge it to the lower end of the filter slag collection pipe (19).

5. A spray booth filtration device for use in a powder coating process according to claim 4, wherein: The cleaning head (18) is a cylindrical rubber body structure, and the diameter of the cleaning head (18) is the same as the inner diameter of the filter slag collection pipe (19).

6. A spray booth filtration device for use in a powder coating process according to claim 5, wherein: The cleaning unit (12) also includes at least one bracket (15) for fixing a magnetic ring (17), the bracket (15) being fixed to the inner wall of the spray tank (10), the magnetic ring (17) contacting the insertion rod (14) and holding the insertion rod (14) at a specified height through magnetic attraction.

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