Chromium-free passivation device for hot-dip galvanized steel plate

Abstract

The utility model relates to the field of steel plate passivation devices, and discloses a hot-dip galvanized steel plate chromate-free passivation device which comprises a passivation pool, baffles are fixedly connected to the two sides of the inner wall of the passivation pool correspondingly, a plurality of linkage shafts are rotatably connected between the two baffles at equal intervals, and one end of the outer portion of each linkage shaft penetrates out of the side face of the passivation pool; a plurality of linkage shafts are fixedly sleeved with conveying rollers, a driving assembly for controlling the multiple conveying rollers to rotate is installed on one side of the passivation pool, and a water pump is started, so that a liquid pumping pipe pumps a passivating agent in the storage pool into a second branch pipe in cooperation with a liquid outlet pipe, and then the passivating agent is branched from the interior of the second branch pipe into an upper first branch pipe and a lower first branch pipe; and meanwhile, a driving motor is matched to drive a plurality of gears to synchronously rotate, so that a plurality of linkage shafts and conveying rollers rotate, uniform spraying on the upper and lower surfaces of the steel plate is conveniently realized, the passivation effect on the steel plate can be ensured, and meanwhile, a worker can conveniently control the steel plate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a steel plate passivation device, in particular to a chromium-free passivation device for hot galvanized steel plates. BACKGROUND

[0002] Galvanized steel refers to common carbon building steel which is subjected to galvanizing processing to effectively prevent corrosion and rusting of the steel and prolong the service life of the steel, wherein galvanizing is divided into electro-galvanizing and hot-dip galvanizing. In the processing and production process of galvanized steel plates, in order to improve the compactness of the surface, the steel plate is usually soaked in an acidic or alkaline solution to form a compound film through a chemical reaction. Common chemical passivation methods include pickling and alkali washing. The pickling method is to immerse the steel plate in a solution containing an acidic oxidizing agent to form a dense compound film; the alkali washing method generates a compound film through an alkaline oxidizing agent solution, which can better control the thickness and composition of the passivation film. In order to avoid harm to the human body, the current passivation agent is a chromium-free passivation agent.

[0003] The above-mentioned method is relatively cumbersome in the process of placing the steel plate in the passivation tank for soaking and taking out. No matter whether the steel plate is light or heavy, the steel plate basically needs to be fixed by hoisting tools first, and then the steel plate can be stably placed in the passivation tank, which brings inconvenience to the passivation process.

[0004] Therefore, the technical personnel in the art provide a chromium-free passivation device for hot galvanized steel plates to solve the problems in the background art. Content of the utility model

[0005] In order to solve the problems in the background art, the application provides a chromium-free passivation device for hot galvanized steel plates.

[0006] The chromium-free passivation device for hot galvanized steel plates provided by the application adopts the following technical scheme:

[0007] A chromium-free passivation device for hot galvanized steel plates, comprising a passivation tank, baffles are fixedly connected to the inner walls of the passivation tank on both sides, a plurality of linkage shafts are rotationally connected at equal intervals between the two baffles, and the outer ends of the linkage shafts are arranged to pass out of the side of the passivation tank, a plurality of conveying rollers are fixedly sleeved on the outer ends of the linkage shafts, and a drive assembly for rotating the plurality of conveying rollers is installed on one side of the passivation tank.

[0008] A No. 2 branch pipe is installed on one side in the passivation tank, a No. 1 branch pipe is installed at each of the two corners of the No. 2 branch pipe, the two No. 1 branch pipes are arranged above and below the two baffles, a plurality of spray heads are arranged at equal intervals below the No. 1 branch pipes, a storage tank is installed on one side of the passivation tank, and a liquid supply assembly for supplying liquid into the No. 2 branch pipe is arranged above the storage tank.

[0009] Preferably, the driving assembly comprises a base plate and a driving motor installed above the base plate, a plurality of gears are fixedly connected to the outer ends of the linkage shafts, and the adjacent gears are engaged, and the driving motor is fixed to the side surface of one gear at the output end.

[0010] Preferably, the liquid supply assembly comprises a horizontal plate installed on the upper edge of the storage pool, a water pump is installed on the upper surface of the horizontal plate, a liquid outlet pipe and a liquid suction pipe are respectively installed at the inlet and outlet of the water pump, and the liquid outlet pipe is connected in communication with the second branch pipe after penetrating into the interior of the passivation pool.

[0011] Preferably, support plates are fixedly connected to the two sides above the pool opening of the passivation pool, and the side edges of the support plates are fixed to the outside of the same side first branch pipe.

[0012] Preferably, rectangular notches are formed on the two sides of the passivation pool.

[0013] As described above, the present application has the following beneficial technical effects:

[0014] By starting the water pump, the liquid suction pipe cooperates with the liquid outlet pipe to pump the passivator in the storage pool into the interior of the second branch pipe, and then branches from the interior of the second branch pipe to the interiors of the upper and lower first branch pipes, and is sprayed from the plurality of nozzles on the upper and lower surfaces of the steel plate, while the driving motor drives the plurality of gears to rotate synchronously, so that the plurality of linkage shafts and the conveying rollers rotate, realizing the conveying of the steel plate, facilitating the uniform spraying on the upper and lower surfaces of the steel plate, ensuring the passivation effect of the steel plate, facilitating the control of the steel plate by the staff, effectively reducing the usage frequency of the hoisting tool, simplifying the operation process, and further facilitating the passivation process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic view of the passivation device main body of the present application;

[0016] Figure 2 is a structure schematic view of the interior details of the passivation pool of the present application;

[0017] Figure 3 is a structure schematic view of the passivation device main body of the present application; Figure 2 further details.

[0018] Explanation of Reference Signs: 1, base plate; 2, driving motor; 3, passivation pool; 4, gear; 5, support plate; 6, first branch pipe; 7, water pump; 8, horizontal plate; 9, storage pool; 10, linkage shaft; 11, nozzle; 12, second branch pipe; 13, liquid outlet pipe; 14, liquid suction pipe; 15, conveying roller; 16, baffle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Reference Figures 1-3 As shown in FIG. 1, the present application discloses a chromium-free passivation device for hot-dip galvanized steel sheet, which comprises a passivation tank 3, baffles 16 fixedly connected to both sides of the inner wall of the passivation tank 3, a plurality of linkage shafts 10 rotatably connected at equal intervals between the two baffles 16, and the outer end of the linkage shaft 10 penetrating out of the side of the passivation tank 3, a plurality of conveying rollers 15 fixedly sleeved outside the linkage shafts 10, a drive assembly installed on one side of the passivation tank 3 for controlling the rotation of the plurality of conveying rollers 15, a No. 2 branch pipe 12 installed on one side inside the passivation tank 3, a No. 1 branch pipe 6 installed at both corners of the No. 2 branch pipe 12, and the two No. 1 branch pipes 6 being distributed above and below the two baffles 16, a plurality of spray heads 11 arranged at equal intervals below the No. 1 branch pipes 6, a storage tank 9 installed on one side outside the passivation tank 3, and a liquid supply assembly arranged above the storage tank 9 for supplying liquid into the No. 2 branch pipe 12. The passivation agent inside the storage tank 9 is pumped into the No. 1 branch pipe 6 by the liquid supply assembly, and then sprayed out in cooperation with the plurality of spray heads 11, and the plurality of linkage shafts 10 and the conveying rollers 15 can be driven to rotate in cooperation with the drive assembly, so that the steel sheet is conveyed and the upper and lower surfaces of the steel sheet are uniformly sprayed.

[0021] Reference Figures 1-3 As shown in FIG. 1, the present application discloses a chromium-free passivation device for hot-dip galvanized steel sheet, which comprises a passivation tank 3, baffles 16 fixedly connected to both sides of the inner wall of the passivation tank 3, a plurality of linkage shafts 10 rotatably connected at equal intervals between the two baffles 16, and the outer end of the linkage shaft 10 penetrating out of the side of the passivation tank 3, a plurality of conveying rollers 15 fixedly sleeved outside the linkage shafts 10, a drive assembly installed on one side of the passivation tank 3 for controlling the rotation of the plurality of conveying rollers 15, a No. 2 branch pipe 12 installed on one side inside the passivation tank 3, a No. 1 branch pipe 6 installed at both corners of the No. 2 branch pipe 12, and the two No. 1 branch pipes 6 being distributed above and below the two baffles 16, a plurality of spray heads 11 arranged at equal intervals below the No. 1 branch pipes 6, a storage tank 9 installed on one side outside the passivation tank 3, and a liquid supply assembly arranged above the storage tank 9 for supplying liquid into the No. 2 branch pipe 12. The passivation agent inside the storage tank 9 is pumped into the No. 1 branch pipe 6 by the liquid supply assembly, and then sprayed out in cooperation with the plurality of spray heads 11, and the plurality of linkage shafts 10 and the conveying rollers 15 can be driven to rotate in cooperation with the drive assembly, so that the steel sheet is conveyed and the upper and lower surfaces of the steel sheet are uniformly sprayed.

[0022] Reference Figures 1-3 As shown in FIG. 1, the present application discloses a chromium-free passivation device for hot-dip galvanized steel sheet, which comprises a passivation tank 3, baffles 16 fixedly connected to both sides of the inner wall of the passivation tank 3, a plurality of linkage shafts 10 rotatably connected at equal intervals between the two baffles 16, and the outer end of the linkage shaft 10 penetrating out of the side of the passivation tank 3, a plurality of conveying rollers 15 fixedly sleeved outside the linkage shafts 10, a drive assembly installed on one side of the passivation tank 3 for controlling the rotation of the plurality of conveying rollers 15, a No. 2 branch pipe 12 installed on one side inside the passivation tank 3, a No. 1 branch pipe 6 installed at both corners of the No. 2 branch pipe 12, and the two No. 1 branch pipes 6 being distributed above and below the two baffles 16, a plurality of spray heads 11 arranged at equal intervals below the No. 1 branch pipes 6, a storage tank 9 installed on one side outside the passivation tank 3, and a liquid supply assembly arranged above the storage tank 9 for supplying liquid into the No. 2 branch pipe 12. The passivation agent inside the storage tank 9 is pumped into the No. 1 branch pipe 6 by the liquid supply assembly, and then sprayed out in cooperation with the plurality of spray heads 11, and the plurality of linkage shafts 10 and the conveying rollers 15 can be driven to rotate in cooperation with the drive assembly, so that the steel sheet is conveyed and the upper and lower surfaces of the steel sheet are uniformly sprayed.

[0023] Reference Figure 1 and Figure 2 As shown in the figure, the support plates 5 are fixedly connected to the both sides above the tank opening of the passivation tank 3, and the side edges of the support plates 5 are fixed to the outside of the same side No. 1 branch pipes 6, so as to ensure the stability of the installation of the upper and lower No. 1 branch pipes 6 inside the passivation tank 3.

[0024] Reference Figure 1 As shown in the figure, the rectangular notches are arranged on the both sides of the passivation tank 3, so as to facilitate the in-and-out of the steel plate inside the passivation tank 3.

[0025] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0026] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0027] The implementation principle of the chromium-free passivation device for hot galvanized steel plate in the embodiment of the application is as follows:

[0028] In the processing, the steel plate is placed above the plurality of conveying rollers 15, then the water pump 7 and the driving motor 2 are started, the passivation agent in the storage tank 9 is pumped into the No. 2 branch pipe 12 through the outlet pipe 13, then is branched from the No. 2 branch pipe 12 into the upper and lower No. 1 branch pipes 6, and then is sprayed on the upper and lower surfaces of the steel plate through the plurality of spray heads 11, at the same time, the driving motor 2 drives the gear 4 at the end to rotate, since the plurality of gears 4 are engaged with each other, so that the plurality of gears 4 rotate synchronously, drive the plurality of linkage shafts 10 and the conveying rollers 15 to rotate, realize the conveying of the steel plate, facilitate the uniform spraying on the upper and lower surfaces of the steel plate, can ensure the passivation effect of the steel plate, at the same time, facilitate the control of the steel plate by the staff, effectively reduce the use frequency of the hoisting tool, simplify the operation process, and further facilitate the passivation process.

[0029] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A chromium-free passivation device for hot-dip galvanized steel sheets comprising a passivation bath (3), characterized in that, Both sides of the inner wall of the passivation tank (3) are fixedly connected with baffles (16), a plurality of linkage shafts (10) are rotatably connected between the two baffles (16) at equal intervals, one end of the linkage shaft (10) outside the passivation tank (3) is arranged on the side of the passivation tank (3), a plurality of conveying rollers (15) are fixedly sleeved on the linkage shaft (10), and a drive assembly for rotating the plurality of conveying rollers (15) is installed on one side of the passivation tank (3). A No. 2 branch pipe (12) is installed on one side of the passivation tank (3), a No. 1 branch pipe (6) is installed at both corners of the No. 2 branch pipe (12), and the two No. 1 branch pipes (6) are arranged above and below the two baffles (16), a plurality of spray heads (11) are arranged below the No. 1 branch pipe (6) at equal intervals, and a storage tank (9) is installed on one side of the passivation tank (3), and a liquid supply assembly for supplying liquid into the No. 2 branch pipe (12) is arranged above the storage tank (9).

2. The chromium-free passivation device for a hot-dip galvanized steel sheet according to claim 1, characterized by: The drive assembly comprises a base plate (1) and a drive motor (2) installed above the base plate (1), one end of each of the plurality of linkage shafts (10) is fixedly connected with a gear (4), and adjacent gears (4) are engaged, and the output end of the drive motor (2) is fixedly connected with one gear (4) on the side.

3. The chromium-free passivation device for a hot-dip galvanized steel sheet according to claim 1, characterized in that: The liquid supply assembly comprises a horizontal plate (8) installed on the upper edge of the storage tank (9), a water pump (7) installed on the upper surface of the horizontal plate (8), an outlet pipe (13) and a liquid suction pipe (14) respectively installed on the inlet and outlet of the water pump (7), and the outlet pipe (13) is connected with the No. 2 branch pipe (12) after penetrating into the passivation tank (3).

4. The chromium-free passivation device for a hot-dip galvanized steel sheet according to claim 1, characterized by: Both sides of the passivation tank (3) are fixedly connected with support plates (5) above the tank opening, and the side edges of the support plates (5) are fixedly connected with the No. 1 branch pipes (6) on the same side.

5. The chromium-free passivation device for a hot-dip galvanized steel sheet according to claim 1, characterized by: Rectangular notches are formed on both sides of the passivation tank (3).

Images