Section steel hot-dip galvanizing transition roller way water cooling device

Abstract

The utility model relates to a section steel hot-dip galvanizing transition roller way water cooling device, and belongs to the technical field of section steel hot-dip galvanizing process equipment in the metallurgical industry. According to the technical scheme, the device comprises a galvanized pot (2), a transfer roller way (4) and a water cooling pool (6), the transfer roller way (4) and the water cooling pool (6) are matched with the profile steel, a transition roller way (1) is arranged between the galvanized pot (2) and the transfer roller way (4), a plurality of injection pipes (10) and a water collecting tank (11) are arranged below the transition roller way (1), the injection pipes (10) are provided with evenly-distributed injection holes, the injection holes of the injection pipes (10) form a water curtain to be sprayed to the profile steel on the transition roller way (1), and the water cooling pool (6) is arranged on the transition roller way (1). And the water collecting tank (11) is communicated with a water return pool (7) through a water collecting port (19) below and a pipeline. The cooling device has the beneficial effects that in the transfer process of the profile steel from a zinc pot to a water cooling pool, the cooling of a surface coating of the profile steel and the pre-cooling of a profile steel substrate are realized, and the influence on the quality of the plated profile steel in the transfer process of the profile steel is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hot-dip galvanizing transition roller way water cooling devices of section steel, belong to metallurgical industry section steel hot-dip galvanizing process equipment technical field. BACKGROUND

[0002] At present, after section steel hot-dip galvanizing at home and abroad needs to be cooled to reduce the section steel bending, deformation etc. caused by natural cooling. Cold water soaking mode is generally used. That is, section steel is transferred from 450 DEG C zinc pot zinc bath through roller way, transverse mechanism turns, and is transferred to water cooling pool not higher than 50 DEG C, and after soaking for a period of time, section steel is discharged after being reduced to about 40 DEG C. The transition time of section steel from zinc pot to cold water pool needs to be fast.

[0003] High-capacity production line, cold water pool size is large, zinc pot size is also large, transition time is too long, steel surface is dark, and the length direction of steel length direction side is contacted with a large amount of normal temperature air, which is more prone to temperature reduction relative to length center, and is prone to cause uneven deformation in length direction, and color difference with uneven light and dark is also generated on steel surface. SUMMARY

[0004] The utility model aims at providing a kind of hot-dip galvanizing transition roller way water cooling devices of section steel, realizes section steel surface coating cooling and section steel matrix precooling in the transfer process of section steel from zinc pot to water cooling pool, avoids the influence on the quality of plated section steel in the transfer process of section steel, and solves the problems in the background art.

[0005] The technical scheme of the utility model is:

[0006] A kind of hot-dip galvanizing transition roller way water cooling devices of section steel, including zinc pot and transfer roller way and water cooling pool matched with section steel, transition roller way is arranged between zinc pot and transfer roller way, multiple spray pipes and water collecting tank are arranged below transition roller way, spray hole is uniformly arranged on spray pipe, and the spray hole of multiple spray pipes forms water curtain towards section steel on transition roller way, and water collecting tank is connected with backwater pool through water collecting port and pipeline below.

[0007] Further, the first roller in the transition roller way is provided with a toothed plate matched with the section steel behind it, and the last roller is a magnetic roller.

[0008] Further, the toothed plate is fixed on the roller frame, and a positioning sawtooth matched with the section steel is arranged on the toothed plate.

[0009] Further, the spray pipe is connected with the water cooling pool through a water supply pump, and a filter is arranged on the pipeline connected with the backwater pool below the water collecting port of the water collecting tank.

[0010] Further, the backwater pool is provided with temperature detection and liquid level detection.

[0011] Further, the water return pool is connected with the water cooling pool through a water return pump and a pipeline.

[0012] The utility model discloses beneficial effect is: in the section steel from zinc pot to water cooling pool transfer process, realize section steel surface coating cooling and section steel base body precooling, avoid the influence of section steel transfer process to the quality of plated section steel. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is use state front view for the utility model;

[0014] Figure 2 It is use state plan view for the utility model;

[0015] Figure 3 It is the utility model Figure 1 Among them, A-A section view;

[0016] Figure 4 It is principle diagram for the utility model;

[0017] In the drawing: transition roller way 1, galvanizing pot 2, roller frame 3, transfer roller way 4, horizontal moving equipment 5, water cooling pool 6, water return pool 7, water supply pump 8, distributor 9, injection pipe 10, water collecting tank 11, filter 12, temperature detection 13, liquid level detection 14, water return pump 15, toothed plate 16, magnetic roller 17, filter machine 18, water collecting mouth 19, detection switch 20, section steel 21. DETAILED DESCRIPTION

[0018] The utility model is further described by examples in combination with the drawings.

[0019] Referring to the drawings Figures 1-4 A kind of section steel hot-dip galvanizing transition roller way water cooling device, including galvanizing pot 2 and with section steel matched transfer roller way 4 and water cooling pool 6, transition roller way 1 is set between galvanizing pot 2 and transfer roller way 4, multiple injection pipes 10 and water collecting tank 11 are set in the lower of transition roller way 1, spray hole is equipped in injection pipe 10, and the spray hole of multiple injection pipes 10 forms water curtain and sprays towards section steel 21 on transition roller way 1, water collecting tank 11 is connected with water return pool 7 by the water collecting mouth 19 and pipeline in the lower.

[0020] In the present example, the drawings Figure 1 、 2 , 3 are process flow distribution diagram from galvanizing pot 1 to water cooling pool 6, as can be seen from the drawings Figure 1 、 2 , 3, the longer section steel is, the longer section steel runs from pot to cooling, and the greater influence on plated quality.

[0021] Referring to the drawings Figures 1-4In the transition roller 1 from the galvanizing pot 2 to the water cooling pool 6, a spray pipe 10, a water pool circulation system and a matching section steel positioning mechanism are added.

[0022] The transition roller 1 includes three rollers, and a toothed plate 16 for positioning is arranged behind the first roller, as shown in the attached drawing. Figure 3 The toothed plate 16 is threadedly connected with the roller frame 3, and the toothed plate 16 can actually be made with corresponding tooth surface shapes according to different batch steel quantities and different section steel cross sections, and is replaced when the specifications are changed. Behind the second roller, a plurality of spray pipes 10 for spraying water are arranged below the section steel passing through. The top of the spray pipe 10 is densely drilled to be sprayed upward in the form of a fountain. A plurality of spray pipes 10 form a plurality of large water volume pressure water curtains, which cool the section steel and then fall into the water collecting tank 11. The third roller is in contact with the section steel and is a permanent magnet roller with large magnetic force to prevent running slip.

[0023] The water collected in the water collecting tank 11 flows downward to the water pool 7 by gravity. The spray water is pumped from the water cooling pool 6 by the water supply pump 8. The water pool 7 is provided with a temperature detector 13 and a liquid level detector 14. When the liquid level is insufficient, the pump is used to supplement the liquid from the water cooling pool 6. Because the water cooling pool 6 is provided with an offline cooling system, when the water temperature exceeds the standard, the water is also pumped back to the water cooling pool 6. The water pool 7 is provided with a filter 12 to intercept large particles. Meanwhile, a filter 18 is arranged on the circulation branch to filter small particles, so as to ensure that the quality of the spray cooling water meets the requirements.

[0024] The above water cooling device is suitable for continuous batch hot-dip galvanizing of section steel. The longer the section steel is, the greater the support weight is, and the more obvious the advantage is.

Claims

1. A water cooling device for a hot-dip galvanized steel transition roller bed, comprising a galvanizing pot (2) and a transfer roller bed (4) and a water cooling pool (6) matched with the galvanized steel, characterized in that: The transition roller (1) is arranged between the galvanizing pot (2) and the transfer roller (4), a plurality of spray pipes (10) and a water collecting tank (11) are arranged below the transition roller (1), the spray pipes (10) are provided with uniformly arranged spray holes, the spray holes of the plurality of spray pipes (10) form a water curtain and spray the section steel (21) on the transition roller (1), and the water collecting tank (11) is connected in communication with the water return tank (7) through the water collecting opening (19) and the pipeline below.

2. A water cooling device for a hot-dip galvanizing transition roller bed for a profile steel according to claim 1, characterized in that: The first roller in the transition roller (1) is provided with a toothed plate (16) matched with the section steel, and the last roller is a magnetic roller (17).

3. A water cooling device for a galvanized steel transition roller bed according to claim 2, characterized in that: The toothed plate (16) is fixed on the roller frame (3), and the toothed plate (16) is provided with a positioning sawtooth matched with the section steel.

4. A water cooling device for a galvanized steel transition roller bed according to claim 1, characterized in that: The spray pipe (10) is connected with the water cooling tank (6) through a water supply pump (8), and a filter (12) is arranged on the pipeline connected between the water collecting opening (19) below the water collecting tank (11) and the water return tank (7).

5. A water cooling device for a galvanized steel transition roller bed according to claim 1 or 4, characterized in that: The water return tank (7) is provided with a temperature detector (13) and a liquid level detector (14).

6. A water cooling device for a galvanized steel transition roller bed according to claim 1 or 4, characterized in that: The water return tank (7) is connected in communication with the water cooling tank (6) through a water return pump (15) and a pipeline.

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