Filtering device capable of adjusting filtering holes and used for preparing zinc-aluminum coating liquid

Abstract

The utility model discloses a filtering device with adjustable filtering holes for zinc-aluminum coating liquid preparation, and relates to the technical field of zinc-aluminum coating liquid preparation, the filtering device comprises an upper filtering box, a preliminary filtering assembly and a lower filtering chamber, the upper side of the middle part of the upper filtering box is connected with a liquid inlet pipe, and the preliminary filtering assembly is arranged at the upper part in the upper filtering box; and the preliminary filtering assembly comprises an unwinding roller, a winding roller, traction rollers, a filtering splicing net and a rotating motor, the unwinding roller and the winding roller are rotationally mounted on the right side and the left side of the upper portion of the upper filtering box correspondingly, and the traction rollers are arranged below the unwinding roller and the winding roller correspondingly. According to the filtering device capable of adjusting the filtering holes and used for preparing the zinc-aluminum coating liquid, due to the fact that the filtering spliced net is formed by splicing the filtering nets with the filtering holes different in diameter, the unwinding roller and the winding roller are rotated to enable the filtering nets with the required filtering hole types to be wound between the two traction rollers, and the filtering holes are adjusted in the filtering process; the inner centrifugal cylinder and the outer centrifugal cylinder can conduct double centrifugal filtration on the zinc-aluminum coating liquid, and the filtering effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of zinc-aluminum coating liquid preparation, in particular to a filtering device for zinc-aluminum coating liquid preparation with adjustable filter holes. Background Technique

[0002] The zinc-aluminum coating is prepared by stirring a mixed liquid composed of flaky zinc powder, aluminum powder, chromic anhydride and other components, coating it on the surface of the workpiece, and then sintering and curing it. During the preparation of the zinc-aluminum coating liquid, it needs to be filtered, so a filtering device is required.

[0003] During the existing zinc-aluminum coating liquid preparation and filtration process, filtering devices with different filter holes are required for different zinc-aluminum coating liquid configurations. Usually, it is not convenient to flexibly adjust the filtering structure with different filter holes according to the filtering requirements of the zinc-aluminum coating liquid, and it is rather troublesome to manually replace the filtering structure with different filter holes.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a filtering device for zinc-aluminum coating liquid preparation with adjustable filter holes is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering device for zinc-aluminum coating liquid preparation with adjustable filter holes to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A filtering device for zinc-aluminum coating liquid preparation with adjustable filter holes, including an upper filtering box, a preliminary filtering component and a lower filtering chamber. A liquid inlet pipe is connected to the upper side of the middle part of the upper filtering box, and a preliminary filtering component is installed above the inside of the upper filtering box. The preliminary filtering component includes a unwinding roller, a winding roller, a traction roller, a filtering mesh and a rotating motor. The unwinding roller and the winding roller are respectively rotatably installed on the upper right side and the upper left side of the upper filtering box. Traction rollers are arranged below both the unwinding roller and the winding roller, and the traction rollers are rotatably connected to the inner wall of the upper filtering box. A filtering mesh is wound around the outer sides of the unwinding roller and the winding roller, and a rotating motor is installed at one outer end of the unwinding roller and the winding roller. The lower part of the upper filtering box is connected to the lower filtering chamber through a connecting pipe, and a centrifugal filtering component is installed inside the lower filtering chamber.

[0007] Further, the preliminary filtering component further includes a limit groove frame. The middle parts of the front and rear sides of the inner wall of the upper filtering box are fixed with the limit groove frame, and the front and rear sides below the filtering mesh are arranged inside the limit groove frame.

[0008] Further, the cross-section of the upper filtering box is in a "concave" shape structure, and a fine filter screen is arranged below the inside of the upper filtering box.

[0009] Furthermore, the centrifugal filtration assembly includes a rotating tube, an external toothed ring, and a driving gear. The rotating tube is rotatably connected to the upper wall of the lower filtration chamber, and an external toothed ring is fixed to the outer side of the rotating tube. A driving gear is installed on one side of the external toothed ring through a motor, and the driving gear is meshed with the external toothed ring.

[0010] Furthermore, the centrifugal filtration assembly further includes a centrifugal outer cylinder and a centrifugal inner cylinder. The centrifugal outer cylinder is fixed below the rotating tube, and the centrifugal inner cylinder is fixed inside the centrifugal outer cylinder, and the inside of the rotating tube is in communication with the inside of the centrifugal inner cylinder.

[0011] Furthermore, the centrifugal outer cylinder, the centrifugal inner cylinder, and the lower filtration chamber are in a concentric circular structure, and a drain pipe is connected to one side of the outside of the lower filtration chamber.

[0012] The utility model provides a filtration device for preparing zinc-aluminum coating liquid with adjustable filter holes, which has the following beneficial effects:

[0013] The utility model is provided with a preliminary filtration assembly. The filtration patchwork is composed of filter meshes with different filter hole diameters spliced together. The rotating motor facilitates driving the rotation of the unwinding roller and the winding roller, so that the filter mesh of the required filter hole model is wound between the two traction rollers, realizing the adjustment of the filter holes during the filtration process. Moreover, the two lower traction rollers can traction the filtration patchwork, enabling the zinc-aluminum coating liquid to pass through the filtration patchwork between the two traction rollers for preliminary filtration, and the adjustment method is relatively flexible.

[0014] The utility model is provided with a centrifugal filtration assembly. The motor facilitates driving the rotation of the driving gear, thereby driving the rotation of the external toothed ring and the rotating tube, so as to drive the rotation of the centrifugal outer cylinder and the centrifugal inner cylinder, enabling the centrifugal inner cylinder and the centrifugal outer cylinder to perform double centrifugal filtration on the zinc-aluminum coating liquid, and the filtration effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a partial sectional structural schematic diagram of a filtration device for preparing zinc-aluminum coating liquid with adjustable filter holes according to the utility model;

[0016] Figure 2 is a structural schematic diagram of the preliminary filtration assembly of a filtration device for preparing zinc-aluminum coating liquid with adjustable filter holes according to the utility model;

[0017] Figure 3 is a sectional structural schematic diagram of the inside of the lower filtration chamber of a filtration device for preparing zinc-aluminum coating liquid with adjustable filter holes according to the utility model.

[0018] In the figure: 1. Upper filtration box; 2. Liquid inlet pipe; 3. Preliminary filtration component; 301. Unwinding roller; 302. Rewinding roller; 303. Traction roller; 304. Filter mesh; 305. Rotating motor; 306. Limit groove frame; 4. Fine filter screen; 5. Connecting pipe; 6. Lower filtration chamber; 7. Centrifugal filtration component; 701. Rotating pipe; 702. Outer tooth ring; 703. Driving gear; 704. Centrifugal outer cylinder; 705. Centrifugal inner cylinder; 8. Liquid discharge pipe. Detailed implementation mode

[0019] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0020] As Figure 1 - Figure 2 shown, a filtering device for preparing zinc-aluminum coating liquid with adjustable filter holes includes an upper filtration box 1, a preliminary filtration component 3 and a lower filtration chamber 6. A liquid inlet pipe 2 is connected to the upper side of the middle part of the upper filtration box 1, and a preliminary filtration component 3 is installed above the inside of the upper filtration box 1. The preliminary filtration component 3 includes an unwinding roller 301, a rewinding roller 302, a traction roller 303, a filter mesh 304 and a rotating motor 305. The unwinding roller 301 and the rewinding roller 302 are respectively rotatably installed on the right side and the left side above the upper filtration box 1. Traction rollers 303 are arranged below the unwinding roller 301 and the rewinding roller 302, and the traction rollers 303 are rotatably connected to the inner wall of the upper filtration box 1. Filter meshes 304 are wound around the outer sides of the unwinding roller 301 and the rewinding roller 302, and rotating motors 305 are installed at the outer ends of the unwinding roller 301 and the rewinding roller 302. The preliminary filtration component 3 further includes a limit groove frame 306. The middle parts of the front and rear sides of the inner wall of the upper filtration box 1 are fixed with the limit groove frame 306. At the same time, the front and rear sides below the filter mesh 304 are arranged inside the limit groove frame 306; the cross-section of the upper filtration box 1 is in a "concave" shape structure, and a fine filter screen 4 is arranged below the inside of the upper filtration box 1;

[0021] The specific operation is as follows. The filter mesh 304 is composed of spliced filter nets with different filter hole diameters. The rotating motor 305 facilitates driving the rotation of the unwinding roller 301 and the rewinding roller 302, so that the filter net of the required filter hole model is wound between the two traction rollers 303, realizing the adjustment of the filter holes during the filtration process. And the two lower traction rollers 303 can traction the filter mesh 304, so that the zinc-aluminum coating liquid can be preliminarily filtered through the filter mesh 304 between the two traction rollers 303. The adjustment method is relatively flexible, and the limit groove frame 306 can limit the front and rear sides of the filter mesh 304 to prevent curling.

[0022] As Figure 1 and Figure 3As shown in the figure, a lower filtration chamber 6 is connected below the upper filtration box 1 through a connecting pipe 5, and a centrifugal filtration component 7 is installed inside the lower filtration chamber 6. The centrifugal filtration component 7 includes a rotating pipe 701, an external gear ring 702, and a driving gear 703. The rotating pipe 701 is rotatably connected to the upper wall of the lower filtration chamber 6, and an external gear ring 702 is fixed to the outer side of the rotating pipe 701. A driving gear 703 is installed on one side of the external gear ring 702 through a motor, and the driving gear 703 is meshed with the external gear ring 702; The centrifugal filtration component 7 further includes a centrifugal outer cylinder 704 and a centrifugal inner cylinder 705. The centrifugal outer cylinder 704 is fixed below the rotating pipe 701, and the centrifugal inner cylinder 705 is fixed to the inner side of the centrifugal outer cylinder 704, and the inside of the rotating pipe 701 and the centrifugal inner cylinder 705 communicate with each other; The centrifugal outer cylinder 704, the centrifugal inner cylinder 705, and the lower filtration chamber 6 are in a concentric circular structure, and a drain pipe 8 is connected to the outer side of the lower filtration chamber 6;

[0023] The specific operation is as follows. The preliminarily filtered zinc-aluminum coating liquid inside the upper filtration box 1 can enter the inside of the centrifugal inner cylinder 705 through the connecting pipe 5 and the rotating pipe 701. The motor facilitates driving the rotation of the driving gear 703, thereby driving the rotation of the external gear ring 702 and the rotating pipe 701, so as to drive the rotation of the centrifugal outer cylinder 704 and the centrifugal inner cylinder 705, enabling the centrifugal inner cylinder 705 and the centrifugal outer cylinder 704 to perform double centrifugal filtration on the zinc-aluminum coating liquid, and the filtration effect is better. Finally, the zinc-aluminum coating liquid that has been double-filtered through the centrifugal inner cylinder 705 and the centrifugal outer cylinder 704 in sequence under the action of centrifugal force can be discharged from the lower filtration chamber 6 through the drain pipe 8.

[0024] In summary, as Figure 1 - Figure 3As shown, for the filtering device prepared with the zinc-aluminum coating solution with adjustable filter holes, during use, first, the zinc-aluminum coating solution can be sent into the upper filtering box 1 through the liquid inlet pipe 2. At this time, the rotation of the unwinding roller 301 and the winding roller 302 can be driven by the rotating motor 305. Since the filtering mesh combination 304 is composed of filter meshes with different filter hole diameters, rotating the unwinding roller 301 and the winding roller 302 enables the filter mesh of the required filter hole model to be wound between the two traction rollers 303, realizing the adjustment of the filter holes during the filtering process. Then, the zinc-aluminum coating solution can be preliminarily filtered through the filtering mesh combination 304 between the two traction rollers 303. Next, the fine filter mesh 4 can perform re-filtering on the zinc-aluminum coating solution. Then, the zinc-aluminum coating solution preliminarily filtered inside the upper filtering box 1 can enter the inside of the centrifugal inner cylinder 705 through the connecting pipe 5 and the rotating pipe 701. At this time, the rotation of the driving gear 703 can be driven by the motor, thereby driving the rotation of the external gear ring 702, the rotating pipe 701, the centrifugal outer cylinder 704, and the centrifugal inner cylinder 705, enabling the centrifugal inner cylinder 705 and the centrifugal outer cylinder 704 to perform double centrifugal filtering on the zinc-aluminum coating solution. Finally, the zinc-aluminum coating solution double-filtered by the centrifugal inner cylinder 705 and the centrifugal outer cylinder 704 in sequence under the action of centrifugal force can be discharged from the liquid discharge pipe 8 into the lower filtering chamber 6, thus completing the use process of the filtering device prepared with the zinc-aluminum coating solution with adjustable filter holes.

[0025] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A filtering device for preparing zinc-aluminum coating liquid with adjustable filter holes, comprising an upper filtering box (1), a preliminary filtering component (3) and a lower filtering chamber (6), characterized in that, A liquid inlet pipe (2) is connected to the upper side of the middle part of the upper filter box (1), and a preliminary filter assembly (3) is installed above the inside of the upper filter box (1). The preliminary filter assembly (3) includes a unwinding roller (301), a winding roller (302), a traction roller (303), a filter mesh (304) and a rotating motor (305). The unwinding roller (301) and the winding roller (302) are respectively rotatably installed on the right side and the left side above the upper filter box (1). Traction rollers (303) are arranged below the unwinding roller (301) and the winding roller (302), and the traction rollers (303) are rotatably connected to the inner wall of the upper filter box (1). The filter mesh (304) is wound around the outer sides of the unwinding roller (301) and the winding roller (302), and a rotating motor (305) is installed at one outer end of the unwinding roller (301) and the winding roller (302). The lower part of the upper filter box (1) is connected to a lower filter chamber (6) through a connecting pipe (5), and a centrifugal filter assembly (7) is installed inside the lower filter chamber (6).

2. The filtering device prepared from the zinc-aluminum coating solution with adjustable filter holes according to claim 1, wherein The preliminary filter assembly (3) further includes a limit groove frame (306). The limit groove frame (306) is fixed to the middle parts of the front and rear sides of the inner wall of the upper filter box (1), and the front and rear sides below the filter mesh (304) are arranged inside the limit groove frame (306).

3. The filtering device prepared from the zinc-aluminum coating solution with adjustable filter holes according to claim 1, wherein, The cross-section of the upper filter box (1) is in a "concave" shape structure, and a fine filter screen (4) is arranged below the inside of the upper filter box (1).

4. The filtering device prepared from a zinc-aluminum coating solution with adjustable filter holes according to claim 1, wherein, The centrifugal filter assembly (7) includes a rotating pipe (701), an external toothed ring (702) and a driving gear (703). The rotating pipe (701) is rotatably connected to the upper wall of the lower filter chamber (6), and the external toothed ring (702) is fixed to the outer side of the rotating pipe (701). A driving gear (703) is installed on one side of the external toothed ring (702) through a motor, and the driving gear (703) is meshed with the external toothed ring (702).

5. The filtering device prepared from a zinc-aluminum coating solution with adjustable filter holes according to claim 4, characterized in that, The centrifugal filter assembly (7) further includes a centrifugal outer cylinder (704) and a centrifugal inner cylinder (705). The centrifugal outer cylinder (704) is fixed below the rotating pipe (701), and the centrifugal inner cylinder (705) is fixed inside the centrifugal outer cylinder (704), and the inside of the rotating pipe (701) is communicated with the inside of the centrifugal inner cylinder (705).

6. The filtering device prepared from the zinc-aluminum coating solution with adjustable filter holes according to claim 5, characterized in that, The centrifugal outer cylinder (704), the centrifugal inner cylinder (705) and the lower filter chamber (6) are in a concentric circular structure, and a drain pipe (8) is connected to the outer side of the lower filter chamber (6).

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