A furnace snout for hot-dip galvanizing high-quality processing of cold-rolled steel strips

Abstract

The utility model discloses a cold-rolled strip steel hot galvanizing high -quality processing is with furnace nose, including cylinder, the inside position department of cylinder is provided with the flow guide plate, the inside end surface position department of flow guide plate is provided with airflow grille, the outer wall of cylinder is fixed with support base at the position department of left and right sides below, two support base are connected through the connecting rod fixed at the position department of both sides of inner wall, the front end of support base is provided with recess at the position department of inside left and right sides, and the device is fixed through bottom plate and foundation bolt, and at this time, the cylinder can be driven to move horizontally through support, makes T type board move at the position department of inside T type sliding slot when moving, makes the cylinder keep at the position through the stainless steel bolt through support base and enters the position department of screw hole inside, effectively solves the inconvenient problem of original operation, and then improves equipment adjustment efficiency and work stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, specifically relating to a furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel. Background Technology

[0002] The furnace nose for high-quality hot-dip galvanizing of cold-rolled strip steel is a key sealed channel device connecting the annealing furnace and the zinc pot. Its core function is to effectively isolate the strip steel from the intrusion of external air during the transition from the annealing furnace to the zinc pot, preventing the strip steel surface from re-oxidizing due to contact with oxygen. At the same time, it guides the strip steel smoothly into the zinc liquid. To meet the requirements of high-quality processing, the furnace nose is usually made of high-temperature resistant and corrosion-resistant materials. Inert gas is often introduced into the interior to further enhance the sealing and protection. The structural design also needs to reduce the adhesion of zinc dross formed by the condensation of zinc vapor, thereby ensuring the surface quality of the strip steel and the adhesion of the galvanized layer. It is an important component to ensure the stability of the hot-dip galvanizing process and improve product quality.

[0003] When using furnace noses for hot-dip galvanizing high-quality processing of cold-rolled strip steel, the weight of the cylinder is too heavy. When adjusting the position of the cylinder, it is necessary to lift and move the cylinder using lifting lugs and a crane, which is very inconvenient. Therefore, the market needs a new device to solve the current problems. Utility Model Content

[0004] The purpose of this utility model is to provide a furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, in order to solve the problem mentioned in the background art. When using the furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, the weight of the cylinder is too heavy. When the position of the cylinder is adjusted, it needs to be lifted and moved by a lifting lug and a crane, which is very inconvenient. Therefore, the market needs a new device to solve the current problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, comprising a cylinder, a guide plate disposed inside the cylinder, an airflow grille disposed on the inner end face of the guide plate, support seats fixed on the lower left and right sides of the outer wall of the cylinder, two support seats being connected by connecting rods fixed on both sides of the inner wall, grooves disposed at the front end of the support seats on the left and right sides, stainless steel bolts disposed inside the grooves, a T-shaped plate fixed at the lower end of the support seats at the middle position, a crossbar installed at the lower end of the support seats, multiple threaded holes distributed at the upper end of the crossbar, and a T-shaped groove disposed at the upper end of the crossbar.

[0006] Preferably, the outer wall of the cylinder is fixed with lifting lugs at the upper left and right sides, and the cylinder is moved by a crane. An observation window is provided at the middle of the front end of the cylinder.

[0007] Preferably, an inlet pipe and an outlet pipe are installed at the left and right ends of the cylinder, respectively, and the inlet pipe and the outlet pipe are installed to the cylinder by fastening bolts.

[0008] Preferably, both the inlet pipe and the outlet pipe are provided with inner linings, and both the inlet pipe and the outlet pipe are provided with flanges at their front ends.

[0009] Preferably, the crossbar is supported by support legs fixed at the lower left and right sides, and a base plate is fixed at the lower end of the support legs.

[0010] Preferably, the bottom plate has through holes at the four corners of its upper end, through which anchor bolts are inserted to fix the position of the cylinder.

[0011] Preferably, the T-shaped plate is fitted inside the T-shaped groove, and the support seat slides along the T-shaped groove at the upper end of the crossbar via the T-shaped plate.

[0012] Preferably, the T-shaped groove is connected to multiple threaded holes, and the stainless steel bolt enters the internal position of the threaded hole to fix the position of the support.

[0013] Compared with the prior art, this utility model provides a furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, which has the following beneficial effects:

[0014] 1. This device is fixed by a base plate and anchor bolts. The support can drive the cylinder to move laterally. During the movement, the T-shaped plate moves inside the T-shaped groove. When adjusted to the appropriate position, the stainless steel bolt is inserted through the support seat into the threaded hole to keep the cylinder in the position. This effectively solves the original problem of inconvenient operation and improves the equipment adjustment efficiency and working stability.

[0015] 2. A guide plate is installed inside the cylinder to guide the airflow to the airflow grid. The airflow grid has a honeycomb-shaped guide structure, which divides the airflow into a large number of parallel fine streams, breaks up turbulence, suppresses eddies, and makes the gas form a uniform laminar flow field in the cross section of the cylinder, eliminating local blind spots, stabilizing the gas pressure and airflow state in the furnace, and reducing the disturbance of gas supply fluctuations on the strip posture. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the furnace nose structure for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of a furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the furnace nose cylinder for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of a furnace nose crossbar for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to this utility model.

[0020] In the diagram: 1. Cylinder body; 2. Lifting lug; 3. Observation window; 4. Inlet pipe; 5. Support base; 6. Stainless steel bolt; 7. Support leg; 8. Connecting rod; 9. Base plate; 10. Threaded hole; 11. T-shaped groove; 12. Lining; 13. Outlet pipe; 14. Fastening bolt; 15. Flange; 16. Groove; 17. Guide plate; 18. Airflow grille; 19. Crossbar; 20. T-shaped plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The utility model provides, for example Figure 1-4 The furnace nose shown is for hot-dip galvanizing of cold-rolled strip steel. It includes a cylinder 1. A guide plate 17 is provided inside the cylinder 1. An airflow grille 18 is provided on the inner end face of the guide plate 17. Support seats 5 are fixed on the lower left and right sides of the outer wall of the cylinder 1. The two support seats 5 are connected by connecting rods 8 fixed on the inner sides of the inner wall. The front end of the support seat 5 is provided with a groove 16 on the left and right sides. Stainless steel bolts 6 are provided inside the groove 16. A T-shaped plate 20 is fixed at the middle position of the lower end of the support seat 5. A crossbar 19 is installed at the lower end of the support seat 5. Multiple threaded holes 10 are distributed at the upper end of the crossbar 19. A T-shaped groove 11 is provided at the upper end of the crossbar 19.

[0025] When hot-dip galvanizing cold-rolled strip steel, the inlet pipe 4 is connected to the hot tension roller chamber on the outlet side of the annealing furnace, and the outlet pipe 13 is connected to the strip steel inlet of the zinc pot. Before operation, inert gas is introduced into the cylinder 1 through the inlet pipe 4, and an internal inert atmosphere is constructed by relying on the flange 15. The strip steel in the annealing furnace enters the cylinder 1 and runs smoothly along the channel protected by the inner lining 12. The operator monitors the strip steel's posture in real time through the observation window 3. The strip steel is in an inert atmosphere throughout the entire process in the cylinder 1 to avoid surface oxidation. Finally, it enters the zinc pot through the outlet pipe 13 to realize the hot-dip galvanizing process. A gap is reserved inside the guide plate 17 for the strip steel to pass through.

[0026] like Figure 1 and Figure 2As shown, lifting lugs 2 are fixed to the outer wall of the cylinder 1 at the upper left and right sides. The lifting lugs 2 are used to move the cylinder 1 by a crane. An observation window 3 is provided at the middle of the front end of the cylinder 1. An inlet pipe 4 and an outlet pipe 13 are respectively installed at the left and right ends of the cylinder 1. The inlet pipe 4 and the outlet pipe 13 are installed to the cylinder 1 by fastening bolts 14. The inside of the inlet pipe 4 and the outlet pipe 13 are provided with linings 12. The front end of the inlet pipe 4 and the outlet pipe 13 are provided with flanges 15. The crossbar 19 is fixed to the lower left and right sides. The support leg 7 at the position provides support, and the bottom plate 9 is fixed at the lower end of the support leg 7. The four corners of the upper end of the bottom plate 9 are provided with through round holes. Anchor bolts are inserted into the through holes to fix the position of the cylinder 1. The T-shaped plate 20 is sleeved in the inner position of the T-shaped slide groove 11. The support seat 5 slides along the T-shaped slide groove 11 at the upper end of the crossbar 19 through the T-shaped plate 20. The T-shaped slide groove 11 is connected to multiple threaded holes 10. The stainless steel bolt 6 enters the inner position of the threaded hole 10 to fix the position of the support seat 5.

[0027] The furnace nose is fixed by the base plate 9 and anchor bolts. At this time, the cylinder 1 can be moved laterally by the support. During the movement, the T-shaped plate 20 moves in the internal position of the T-shaped slide 11. When it is adjusted to a suitable position, the stainless steel bolt 6 is inserted into the internal position of the threaded hole 10 through the support seat 5, so that the cylinder 1 is kept in the position.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel, characterized in that, The device includes a cylinder (1), a guide plate (17) is provided inside the cylinder (1), an airflow grille (18) is provided on the inner end face of the guide plate (17), a support seat (5) is fixed on the lower left and right sides of the outer wall of the cylinder (1), the two support seats (5) are connected by connecting rods (8) fixed on the inner sides of the inner wall, the front end of the support seat (5) is provided with a groove (16) on the left and right sides, a stainless steel bolt (6) is provided inside the groove (16), a T-shaped plate (20) is fixed at the middle position of the lower end of the support seat (5), a crossbar (19) is installed at the lower end of the support seat (5), a plurality of threaded holes (10) are distributed at the upper end of the crossbar (19), and a T-shaped groove (11) is provided at the upper end of the crossbar (19).

2. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 1, characterized in that: The outer wall of the cylinder (1) is fixed with lifting lugs (2) located on the upper left and right sides. The lifting lugs (2) are used to move the cylinder (1) by a crane. An observation window (3) is provided at the middle of the front end of the cylinder (1).

3. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 1, characterized in that: An inlet pipe (4) and an outlet pipe (13) are respectively installed at the left and right ends of the cylinder (1). The inlet pipe (4) and the outlet pipe (13) are installed to the cylinder (1) by fastening bolts (14).

4. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 3, characterized in that: The inlet pipe (4) and outlet pipe (13) are both provided with inner linings (12), and the front ends of the inlet pipe (4) and outlet pipe (13) are both provided with flanges (15).

5. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 1, characterized in that: The crossbar (19) is supported by support legs (7) fixed at the lower left and right sides, and a base plate (9) is fixed at the lower end of the support legs (7).

6. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 5, characterized in that: The bottom plate (9) has four holes at the upper corners, through which anchor bolts are inserted to fix the position of the cylinder (1).

7. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 1, characterized in that: The T-shaped plate (20) is fitted inside the T-shaped groove (11), and the support seat (5) slides along the T-shaped groove (11) at the upper end of the crossbar (19) via the T-shaped plate (20).

8. The furnace nose for hot-dip galvanizing high-quality processing of cold-rolled strip steel according to claim 7, characterized in that: The T-shaped groove (11) is connected to multiple threaded holes (10), and the stainless steel bolt (6) enters the internal position of the threaded hole (10) to fix the position of the support (5).

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