Device capable of improving uniformity of coating on surface of strip steel

Abstract

The utility model belongs to the technical field of strip steel galvanization treatment, and particularly discloses a device capable of improving the uniformity of a strip steel surface coating, which comprises a galvanization pool, a cleaning mechanism arranged outside one end of the top of the galvanization pool, a heating mechanism arranged at the bottom of the galvanization pool, and a stirring mechanism arranged inside the galvanization pool. The stirring mechanism comprises a driving shaft horizontally and rotatably mounted in the middle of the galvanizing bath, one end of the driving shaft is connected with an output shaft of a motor fixedly mounted on the outer wall of the galvanizing bath, spiral pushing blades are symmetrically mounted on the outer sides of the two ends of the driving shaft, and arc-shaped mixing parts are mounted on the outer side of the driving shaft between the two spiral pushing blades at equal intervals in the circumferential direction; and a barrier filter plate is detachably mounted on the galvanizing bath above the arc-shaped material mixing part. According to the device, the surface of strip steel can be scraped before galvanization, impurities are prevented from remaining on the surface of the strip steel after cleaning and affecting the galvanization quality of the strip steel, meanwhile, the device can control the stability of galvanization liquid, and the uniformity of follow-up galvanization is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of strip galvanizing treatment, and particularly relates to a device capable of improving the uniformity of the coating on the strip surface. Background Art

[0002] The quality of hot-dip galvanizing has an important impact on the service life and performance of products. Therefore, one of the development directions of hot-dip galvanizing is to improve the uniformity, adhesion and corrosion resistance of the coating to enhance the protection performance of products. Equipment conditions have an important impact on the coating quality of hot-dip galvanizing. The design and operation of the equipment should meet certain requirements to ensure the uniformity and consistency of the coating. For example, the stirring method of the zinc bath to ensure the uniformity of the zinc bath. In addition, the temperature of the equipment also needs to be controlled within a suitable range to avoid excessive or uneven coating. To meet the above galvanizing conditions and improve the coating uniformity, a device capable of improving the uniformity of the coating on the strip surface is proposed. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a device capable of improving the uniformity of the coating on the strip surface is proposed.

[0004] To achieve the above purpose, the utility model provides a device capable of improving the uniformity of the coating on the strip surface, including a galvanizing bath. A cleaning mechanism is arranged outside one end of the top of the galvanizing bath. A heating mechanism is arranged at the bottom of the galvanizing bath. And a stirring mechanism is arranged inside the galvanizing bath. The stirring mechanism includes a driving shaft horizontally and rotatably installed in the middle of the galvanizing bath. One end of the driving shaft is connected to the output shaft of a motor fixedly installed on the outer wall of the galvanizing bath. Spiral pushing blades are symmetrically installed on the outer sides of both ends of the driving shaft. Arc-shaped mixing parts are equidistantly installed on the outer side of the driving shaft between the two spiral pushing blades along the circumferential direction. A barrier filter plate is detachably installed above the arc-shaped mixing parts in the galvanizing bath.

[0005] In the above technical solution, further, hanging hooks are fixedly installed at both ends of the side of the barrier filter plate. The hanging hooks are hung on the edge of the top of the galvanizing bath. And a pressing roller is horizontally and rotatably installed between the bottoms of two adjacent hanging hooks.

[0006] In the above technical solution, further, the bottom end inside the galvanizing bath is V-shaped, and there is a gap between the spiral pushing blades and the arc-shaped mixing parts and its inner wall.

[0007] In the above technical solution, further, the cleaning mechanism includes T-shaped columns respectively and fixedly installed on both sides at one end of the top of the galvanizing tank. A set of first mounting plates are slidably installed on the outer side of one of the T-shaped columns, and a set of second mounting plates are slidably installed on the outer side of the other T-shaped column. Scrapers are installed between the adjacent first mounting plates and the second mounting plates away from one end of the galvanizing tank. The two scrapers are symmetrically inclined. Tension springs are sleeved on the T-shaped columns between the same set of first mounting plates and second mounting plates, and the ends of the tension springs are connected to the adjacent first mounting plate or second mounting plate.

[0008] In the above technical solution, further, a collection box is arranged below the scraper. An insertion groove is formed in the outer wall of the galvanizing tank at the corresponding position of the collection box, and the side of the collection box is slidably inserted into the insertion groove.

[0009] In the above technical solution, further, the heating mechanism includes an electric heating element embedded in the bottom of the galvanizing tank, and the electric heating element is electrically connected to a temperature controller installed on the outer wall of the galvanizing tank.

[0010] In the above technical solution, further, a supporting roller is rotatably installed at the other end of the top of the galvanizing tank.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] The present utility model can perform scraping treatment on the surface of the strip before galvanizing, avoiding the residue of impurities on the surface of the strip after cleaning and affecting the galvanizing quality of the strip.

[0013] The provided stirring mechanism and heating mechanism can ensure the uniformity of the galvanizing solution and the unity of temperature, thereby effectively improving the uniformity of the subsequent coating on the surface of the strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a cross-sectional view of the present utility model;

[0016] Figure 3 is Figure 2 a partial structural diagram in

[0017] Figure 4 is Figure 2 an enlarged structural diagram of part A in

[0018] In the figure: 1, galvanizing bath; 2, idler roller; 3, lower pressure roller; 4, hanging hook; 5, first mounting plate; 6, scraper; 7, collection box; 8, temperature controller; 9, second mounting plate; 10, motor; 11, barrier filter plate; 12, T-shaped column; 13, insertion slot; 14, spiral pushing blade; 15, electric heating element; 16, arc-shaped mixing part; 17, pulling spring; 18, drive shaft. Specific implementation mode

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0020] As Figures 1-4 shown, a device that can improve the uniformity of the surface coating of strip steel includes a galvanizing bath 1. A cleaning mechanism is arranged outside one end of the top of the galvanizing bath 1. The cleaning mechanism includes T-shaped columns 12 respectively fixedly installed on both sides of one end of the top of the galvanizing bath 1. A group of first mounting plates 5 are slidably installed outside one of the T-shaped columns 12, and a group of second mounting plates 9 are slidably installed outside the other T-shaped column 12. Scrapers 6 are installed between the adjacent first mounting plates 5 and the second mounting plates 9 away from one end of the galvanizing bath 1. The two scrapers 6 are symmetrically inclined. Pulling springs 17 are sleeved on the T-shaped columns 12 between the same group of first mounting plates 5 and second mounting plates 9, and the ends of the pulling springs 17 are connected to the adjacent first mounting plates 5 or second mounting plates 9; by arranging the two scrapers 6, the upper and lower surfaces of the strip steel after purification cleaning can be scraped, avoiding the residue of impurities on the surface of the strip steel after cleaning and affecting the galvanizing quality of the strip steel. At the same time, the arranged pulling springs 17 can cause the scrapers 6 to always be in close contact with the surface of the strip steel, ensuring the effectiveness of the scraping of the scrapers 6.

[0021] A collection box 7 is arranged below the scraper 6. An insertion slot 13 is opened on the outer wall of the galvanizing bath 1 at the corresponding position of the collection box 7. The side of the collection box 7 is slidably inserted into the insertion slot 13; by arranging the collection box 7, the impurities scraped by the scraper 6 can be received, and the arranged insertion slot 13 can facilitate the detachable installation of the collection box 7 on the outer wall of the galvanizing bath 1.

[0022] At the other end of the top of the galvanizing tank 1, a supporting roller 2 is rotatably installed. At the bottom of the galvanizing tank 1, a heating mechanism is provided. The heating mechanism includes an electric heating element 15 embedded in the bottom of the galvanizing tank 1. The electric heating element 15 is electrically connected to a temperature controller 8 installed on the outer wall of the galvanizing tank 1. Through the temperature controller 8, the electric heating element 15 can be controlled to perform temperature control heating treatment on the galvanized liquid inside the galvanizing tank 1. And a stirring mechanism is provided inside the galvanizing tank 1. The stirring mechanism includes a driving shaft 18 horizontally and rotatably installed at the middle position of the galvanizing tank 1. One end of the driving shaft 18 is connected to the output shaft of a motor 10 fixedly installed on the outer wall of the galvanizing tank 1. On the outer sides of both ends of the driving shaft 18, spiral pushing blades 14 are symmetrically installed. Along the circumferential direction, arc-shaped mixing members 16 are equidistantly installed on the outer side of the driving shaft 18 between the two spiral pushing blades 14. The bottom end inside the galvanizing tank 1 is V-shaped, and there is a gap between the spiral pushing blades 14 and the arc-shaped mixing members 16 and its inner wall. A barrier filter plate 11 is detachably installed above the arc-shaped mixing member 16. By starting the motor 10, driven by the driving shaft 18, the two spiral pushing blades 14 will push the galvanized liquid at both ends towards each other, and at the same time, the arc-shaped mixing member 1 performs synchronous mixing treatment, so as to ensure the uniformity of the galvanized liquid and the unity of temperature, thereby effectively improving the uniformity of the subsequent coating on the surface of the strip steel.

[0023] At both ends of the side of the barrier filter plate 11, hanging hooks 4 are fixedly installed. The hanging hooks 4 are hung on the top edge of the galvanizing tank 1. And between the bottoms of two adjacent hanging hooks 4 at the adjacent ends, a pressing roller 3 is horizontally and rotatably installed. By providing the barrier filter plate 11, the influence on the stirring mechanism during the subsequent galvanizing process can be avoided. And the provided pressing roller 3 can perform pressing treatment on the strip steel to ensure the comprehensiveness of galvanizing.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for improving the uniformity of coating on the surface of a steel strip, comprising a galvanizing pool (1), characterized in that: A cleaning mechanism is arranged outside one end of the top of the galvanizing pool (1), a heating mechanism is arranged at the bottom of the galvanizing pool (1), and a stirring mechanism is arranged inside the galvanizing pool (1), wherein the stirring mechanism comprises a drive shaft (18) which is horizontally rotatably mounted at the middle of the galvanizing pool (1), one end of the drive shaft (18) is connected to the output shaft of a motor (10) which is fixedly mounted on the outer wall of the galvanizing pool (1), spiral push blades (14) are symmetrically mounted outside both ends of the drive shaft (18), an arc-shaped mixing piece (16) is mounted at equal distances along the circumferential direction on the outer side of the drive shaft (18) between the two spiral push blades (14), and a barrier filter plate (11) is detachably mounted on the galvanizing pool (1) above the arc-shaped mixing piece (16).

2. The device for improving the uniformity of the coating on the surface of a steel strip according to claim 1, characterized in that: Both ends of the side of the barrier filter plate (11) are fixedly mounted with hanging hooks (4), the hanging hooks (4) are hung at the top edge of the galvanizing pool (1), and a lower pressure roller (3) is horizontally rotatably mounted between the bottoms of two adjacent hanging hooks (4).

3. The device for improving the uniformity of the coating on the surface of a steel strip according to claim 1, characterized in that: The bottom end of the galvanizing pool (1) is V-shaped, and a gap is left between the spiral push blade (14) and the arc-shaped mixing piece (16) and the inner wall thereof.

4. The device for improving the uniformity of the coating on the surface of a steel strip according to claim 1, characterized in that: The cleaning mechanism comprises T-shaped columns (12) fixedly mounted on both sides of one end of the top of the galvanizing pool (1), wherein a group of first mounting plates (5) are slidably mounted on the outer side of one of the T-shaped columns (12), and a group of second mounting plates (9) are slidably mounted on the outer side of the other T-shaped column (12), and a scraper (6) is mounted between the ends of the adjacent first mounting plates (5) and second mounting plates (9) away from the galvanizing pool (1), and the two scrapers (6) are symmetrically inclined, and the T-shaped columns (12) between the first mounting plates (5) and the second mounting plates (9) of the same group are each provided with a pulling spring (17), and the end of the pulling spring (17) is connected to the adjacent first mounting plate (5) or the second mounting plate (9).

5. A device for improving the uniformity of coating on the surface of a steel strip according to claim 4, characterized in that: A collection box (7) is arranged below the scraper (6); an insertion groove (13) is provided on the outer wall of the galvanizing pool (1) at a position corresponding to the collection box (7); and the side of the collection box (7) is slidably inserted into the insertion groove (13).

6. The device for improving the uniformity of coating on the surface of a steel strip according to claim 1, characterized in that: The heating mechanism comprises an electric heating element (15) embedded in the bottom of the galvanizing pool (1), and the electric heating element (15) is electrically connected to a temperature controller (8) installed on the outer wall of the galvanizing pool (1).

7. The device for improving the uniformity of coating on the surface of a steel strip according to claim 1, characterized in that: A roller (2) is rotatably mounted on the other end of the top of the galvanizing pool (1).

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