Mixing equipment for producing water-based zinc-aluminum coating

Abstract

The utility model discloses mixing equipment for producing a water-based zinc-aluminum coating, which comprises a mixing tank, a stirring mechanism and a spraying mechanism, the stirring mechanism consists of a rotating shaft, stirring blades and wall scrapers, the rotating shaft is rotatably connected inside the mixing tank, a driving motor is mounted at the top of the mixing tank, and the spraying mechanism is mounted on the mixing tank. The top end of the rotating shaft is in transmission connection with the driving motor, the stirring blades are fixedly connected to the surface of the rotating shaft, wall scraping plates are fixedly connected to the two ends of each stirring blade, the spraying mechanism is composed of a water inlet pipe, an annular pipe, a first spraying head and a second spraying head, and the water inlet pipe is installed at the top of the mixing tank; and the annular pipe is mounted on the inner top surface of the mixing tank. The stirring mechanism and the spraying mechanism are arranged in the mixing tank, on one hand, materials are mixed through the stirring mechanism, on the other hand, cleaning liquid can be injected into the mixing tank through the spraying mechanism, and automatic cleaning of the mixing tank is achieved through cooperation between the spraying mechanism and the stirring mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of zinc-aluminum coating production, in particular to mixing equipment for producing water-based zinc-aluminum coatings. Background Art

[0002] Zinc-aluminum coating is a coating with high anti-corrosion performance. Because its treatment process adopts a safe closed-cycle coating method and there is no pollution emission in the whole process, it is called the "green production" technology of surface treatment. It can replace traditional processes such as electrogalvanizing and electrochromium plating, and has been rapidly developed worldwide. Compared with traditional electroplating, hot-dip plating and other processes, zinc-aluminum coating technology has high corrosion resistance, no hydrogen embrittlement, high temperature resistance, controllable coating thickness, and little pollution to the environment. Therefore, it is widely used in automobiles, ships, railways, wind power, bridges, military industry and other industries.

[0003] Zinc-aluminum coating is an aqueous inorganic mixed solution composed of flaky zinc-aluminum powder, chromate, deionized water and various additives. The zinc-aluminum coating treatment liquid is applied to the surface of the pre-treated workpiece by dipping, brushing or electrostatic spraying, and the coating is obtained by drying at 80°C and curing and sintering at about 300°C. During the curing process, along with the volatilization of water and organic components in the coating liquid, the Cr6+ in the coating liquid is reduced by an organic reducing agent to generate an amorphous composite chromate compound nCr3·mCr2O3 that is insoluble in water. It acts as a binder to firmly adhere dozens of layers of phosphorus flaky zinc and aluminum powder to the surface of the steel substrate to form a dense protective layer.

[0004] When some existing mixing devices are in use, they are only provided with a stirring mechanism, which can only realize a single stirring and mixing function. After the mixed materials are discharged, the device cannot be automatically cleaned and needs to be manually cleaned, which is time-consuming and labor-intensive.

[0005] For example, a rapid mixing device for the production of water-based zinc-aluminum coatings disclosed in announcement number CN218485709U fully stirs the zinc-aluminum coating through the action of two stirring rods, avoiding the problem of uneven stirring caused by manual stirring, which affects subsequent use. In addition, the mixing barrel can be slid out of the supporting legs through the slide groove, which facilitates cleaning after use.

[0006] This patent only has a stirring mechanism, which can only realize a single stirring and mixing function. After the mixed material is discharged, the device cannot be cleaned automatically and needs to be cleaned manually, which is time-consuming and labor-intensive.

[0007] Therefore, it is necessary to invent a mixing device for producing water-based zinc-aluminum coating to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a mixing device for producing water-based zinc-aluminum coatings to solve the problems in the above-mentioned technology.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mixing device for producing water-based zinc-aluminum coating, comprising a mixing tank, a stirring mechanism and a spraying mechanism, the stirring mechanism consisting of a rotating shaft, a stirring blade and a wall scraper, the rotating shaft is rotatably connected to the inside of the mixing tank, a driving motor is installed on the top of the mixing tank, the top of the rotating shaft is transmission-connected to the driving motor, the stirring blade is fixedly connected to the surface of the rotating shaft, and both ends of the stirring blade are fixedly connected to the wall scraper, the spraying mechanism consists of a water inlet pipe, an annular pipe, a No. 1 spray head and a No. 2 spray head, the water inlet pipe is installed on the top of the mixing tank, the annular pipe is installed on the inner top surface of the mixing tank, the bottom end of the water inlet pipe extends to the inside of the mixing tank and is connected to the annular pipe, the No. 1 spray head and the No. 2 spray head are both installed at the bottom of the annular pipe, the No. 1 spray head is arranged toward the inner wall of the mixing tank, and the No. 2 spray head is arranged toward the stirring mechanism.

[0010] The cleaning liquid is sprayed onto the inner wall of the mixing tank with the help of the No. 1 spray head, and the cleaning liquid is sprayed onto the stirring mechanism with the help of the No. 2 spray head.

[0011] Preferably, the stirring blades are symmetrically arranged about the center line of the rotation axis, the stirring blades themselves are inclined, and the end of the wall scraper away from the stirring blades is close to the inner wall of the mixing tank.

[0012] The raw materials adhering to the inner wall of the mixing tank can be scraped off with the help of the wall scraper.

[0013] Preferably, the number of the stirring blades is set to four, and the four stirring blades are distributed in a linear array from top to bottom.

[0014] The driving motor drives the rotating shaft to rotate, thereby driving the stirring blades to stir and mix the raw materials.

[0015] Preferably, the number of the No. 1 spray head and the number of the No. 2 spray head are both set to three, and the three No. 1 spray heads and the three No. 2 spray heads are arranged alternately.

[0016] The cleaning liquid can be evenly sprayed inside the mixing tank through the No. 1 spray head and the No. 2 spray head.

[0017] Preferably, a feeding hopper is fixedly connected to the top of the mixing tank, and the bottom of the feeding hopper is connected to the interior of the mixing tank.

[0018] The raw materials can be fed into the mixing tank through the feeding hopper.

[0019] Preferably, a discharge valve pipe is fixedly connected to one side of the bottom of the mixing tank, and one end of the discharge valve pipe is connected to the interior of the mixing tank.

[0020] The mixed material can be discharged through the discharge valve pipe.

[0021] Preferably, a control panel is installed on the surface of the mixing tank, and the drive motor is electrically connected to the control panel.

[0022] The drive motor can be regulated through the control panel.

[0023] Preferably, support legs are fixedly connected to the four corners of the bottom of the mixing tank, and the bottoms of the four support legs are fixedly connected together.

[0024] The mixing tank is stably erected on four supporting legs.

[0025] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0026] 1. By setting a stirring mechanism inside the mixing tank, the raw materials are stirred and mixed with the help of stirring blades, and the attached raw materials are scraped off with the help of wall scrapers, which is conducive to fully mixing the raw materials;

[0027] 2. By arranging a spray mechanism inside the mixing tank, after the material is discharged, a cleaning liquid can be injected into the mixing tank, and cooperate with the stirring mechanism to realize automatic cleaning of the mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a partial structural cross-sectional view of the utility model from the first viewing angle;

[0030] Figure 3 It is a partial structural cross-sectional view of the utility model from a second viewing angle;

[0031] Figure 4 This is a schematic diagram of the structure of the stirring mechanism of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the spray mechanism of the utility model.

[0033] Description of reference numerals:

[0034] 1. Mixing tank; 2. Stirring mechanism; 3. Spraying mechanism; 4. Rotating shaft; 5. Stirring blade; 6. Wall scraper; 7. Driving motor; 8. Water inlet pipe; 9. Ring pipe; 10. No. 1 spray head; 11. No. 2 spray head; 12. Feeding hopper; 13. Discharge valve pipe; 14. Control panel; 15. Support legs. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] The utility model provides Figure 1-5 The mixing equipment shown in the figure for producing water-based zinc-aluminum coating comprises a mixing tank 1, a stirring mechanism 2 and a spraying mechanism 3, the stirring mechanism 2 is composed of a rotating shaft 4, a stirring blade 5 and a wall scraper 6, the rotating shaft 4 is rotatably connected to the inside of the mixing tank 1, a driving motor 7 is installed on the top of the mixing tank 1, the top of the rotating shaft 4 is transmission-connected to the driving motor 7, the stirring blade 5 is fixedly connected to the surface of the rotating shaft 4, and both ends of the stirring blade 5 are fixedly connected to the wall scraper 6, the spraying mechanism 3 is composed of a water inlet pipe 8, an annular pipe 9, a No. 1 spray head 10 and a No. 2 spray head 11, the water inlet pipe 8 is installed on the top of the mixing tank 1, the annular pipe 9 is installed on the inner top surface of the mixing tank 1, the bottom end of the water inlet pipe 8 extends to the inside of the mixing tank 1 and is connected to the annular pipe 9, the No. 1 spray head 10 and the No. 2 spray head 11 are both installed at the bottom of the annular pipe 9, the No. 1 spray head 10 is arranged toward the inner wall of the mixing tank 1, and the No. 2 spray head 11 is arranged toward the stirring mechanism 2.

[0037] In one aspect of the present embodiment, the stirring blades 5 are symmetrically arranged about the midline of the rotating shaft 4, the stirring blades 5 themselves are inclined, the end of the wall scraper 6 away from the stirring blades 5 is close to the inner wall of the mixing tank 1, the number of stirring blades 5 is set to four, and the four stirring blades 5 are distributed in a linear array from top to bottom, the number of No. 1 spray heads 10 and No. 2 spray heads 11 are both set to three, the three No. 1 spray heads 10 and the three No. 2 spray heads 11 are staggered with each other, a feeding hopper 12 is fixedly connected to the top of the mixing tank 1, the bottom of the feeding hopper 12 is connected to the inside of the mixing tank 1, a discharge valve pipe 13 is fixedly connected to one side of the bottom of the mixing tank 1, one end of the discharge valve pipe 13 is connected to the inside of the mixing tank 1, a control panel 14 is installed on the surface of the mixing tank 1, the drive motor 7 is electrically connected to the control panel 14, support legs 15 are fixedly connected to the four corners of the bottom of the mixing tank 1, and the bottoms of the four support legs 15 are fixedly connected together.

[0038] Working principle of this utility model:

[0039] Refer to the instruction manual Figure 1-5 When using the utility model, firstly, the raw materials are put into the mixing tank 1 through the feeding hopper 12, and then the driving motor 7 is started through the control panel 14, and the driving motor 7 drives the rotating shaft 4 to rotate, thereby driving the stirring blade 5 and the wall scraper 6 to rotate together, and the stirring blade 5 is used to stir and mix the raw materials, and then the discharge valve pipe 13 is opened, and the mixed materials are discharged through the discharge valve pipe 13;

[0040] When cleaning the mixing tank 1, first close the discharge valve pipe 13, then inject cleaning liquid into the annular pipe 9 through the water inlet pipe 8, and the cleaning liquid is evenly sprayed outward through the No. 1 spray head 10 and the No. 2 spray head 11. The cleaning liquid is sprayed onto the inner wall of the mixing tank 1 with the help of the No. 1 spray head 10, and the cleaning liquid is sprayed onto the stirring mechanism 2 with the help of the No. 2 spray head 11. During the spraying of the cleaning liquid, a part of the material attached to the inner wall of the mixing tank 1 and the stirring mechanism 2 can be washed down. As the cleaning liquid gradually increases, the drive motor 7 is started and the stirring mechanism 2 is driven to stir the cleaning liquid, thereby further flushing and cleaning the material attached. Finally, the discharge valve pipe 13 is opened to discharge the cleaning liquid, and then clean water is introduced for secondary cleaning.

Claims

1. A mixing device for producing water-based zinc-aluminum coatings, comprising a mixing tank (1), a stirring mechanism (2) and a spraying mechanism (3), characterized in that: The stirring mechanism (2) is composed of a rotating shaft (4), a stirring blade (5) and a wall scraper (6); the rotating shaft (4) is rotatably connected to the inside of the mixing tank (1); a driving motor (7) is installed on the top of the mixing tank (1); the top of the rotating shaft (4) is transmission-connected to the driving motor (7); the stirring blade (5) is fixedly connected to the surface of the rotating shaft (4); both ends of the stirring blade (5) are fixedly connected to the wall scraper (6); the spraying mechanism (3) is composed of a water inlet pipe (8), a ring pipe (9), and a No. 1 spray head. The first spray head (10) and the second spray head (11) are composed of a first spray head (10) and a second spray head (11), the water inlet pipe (8) is installed on the top of the mixing tank (1), the annular pipe (9) is installed on the inner top surface of the mixing tank (1), the bottom end of the water inlet pipe (8) extends into the interior of the mixing tank (1) and is connected to the annular pipe (9), the first spray head (10) and the second spray head (11) are both installed at the bottom of the annular pipe (9), the first spray head (10) is arranged toward the inner wall of the mixing tank (1), and the second spray head (11) is arranged toward the stirring mechanism (2).

2. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: The stirring blades (5) are symmetrically arranged about the center line of the rotating shaft (4), the stirring blades (5) themselves are inclined, and the end of the wall scraper (6) away from the stirring blades (5) is close to the inner wall of the mixing tank (1).

3. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: The number of the stirring blades (5) is set to four, and the four stirring blades (5) are distributed in a linear array from top to bottom.

4. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: The number of the No. 1 spray head (10) and the number of the No. 2 spray head (11) are both set to three, and the three No. 1 spray heads (10) and the three No. 2 spray heads (11) are arranged alternately.

5. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: A feeding hopper (12) is fixedly connected to the top of the mixing tank (1), and the bottom of the feeding hopper (12) is connected to the interior of the mixing tank (1).

6. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: A discharge valve pipe (13) is fixedly connected to one side of the bottom of the mixing tank (1), and one end of the discharge valve pipe (13) is connected to the interior of the mixing tank (1).

7. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: A control panel (14) is installed on the surface of the mixing tank (1), and the driving motor (7) is electrically connected to the control panel (14).

8. A mixing device for producing water-based zinc-aluminum coating according to claim 1, characterized in that: The four corners of the bottom of the mixing tank (1) are fixedly connected to support legs (15), and the bottoms of the four support legs (15) are fixedly connected together.

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