Oven furnace tube structure of steel rolling heating furnace

Abstract

The utility model relates to the technical field of oven tubes of heating furnaces, in particular to an oven tube structure of a steel rolling heating furnace, which comprises a steel tube, a pair of round steel rods fixed above the side surface of the steel tube, iron wires welded at the top ends of the round steel rods, a plurality of gas spray holes arranged above the side surface of the steel tube, and a pair of angle steels fixed above the outer side of the steel tube. The utility model solves the problems that the existing oven tube requires stable gas pressure and small heat value fluctuation. If the two fluctuates greatly, local spray hole blow-off can be caused. When a large number of blow-off spray holes exist, fuel gas cannot be completely combusted and leaks a large amount, toxic components or casualties are caused, fuel gas accumulation easily causes fire and explosion, and the problems that an oven tube fails, the oven temperature is difficult to meet the requirement and the oven drying effect is not up to the standard are solved.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace drying tube technology, specifically to a structure for a steel rolling heating furnace drying tube. Background Technology

[0002] A steel rolling furnace is an industrial furnace that heats steel billets to a suitable rolling temperature and is a key piece of equipment in the steel rolling process. Its lining is often composed of various refractory materials. Newly built or overhauled furnaces often require prolonged drying. Drying is a crucial process to ensure that moisture in the refractory lining is removed at high temperatures, preventing the material from cracking, collapsing, or detaching due to high-temperature evaporation, which would affect its service life. Drying the furnace requires a drying tube, which consists of steel pipes, round steel bars, and iron wires, with several gas injection holes drilled in the steel pipes. Gas flows through the steel pipes and is ejected through the gas injection holes. The ejected gas is ignited by an ignition source suspended on the iron wires. The heat generated by the combustion of the gas is used to heat the refractory material, achieving the purpose of removing moisture from the refractory.

[0003] The structure of this drying furnace tube requires stable gas pressure and minimal fluctuations in gas calorific value. Significant fluctuations in gas pressure or calorific value can lead to localized flameout of the gas nozzles. If a large number of nozzles experience flameout, incomplete combustion of the gas can result in substantial leakage. Toxic components in the gas can cause injury or death, and the accumulation of leaked gas can easily trigger fires, explosions, and other safety accidents. Furthermore, drying tubes with significant flameout lose their drying function, preventing the furnace temperature from meeting the required temperature rise curve and thus failing to achieve the desired drying effect. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing furnace tubes require stable gas pressure and minimal fluctuations in calorific value. Large fluctuations in these two factors can lead to localized nozzle detachment. When multiple nozzles detach, the gas will not burn completely and will leak in large quantities, potentially causing injury or death due to toxic components. Gas accumulation can also easily lead to fires and explosions. Furthermore, if the furnace tubes fail, the furnace temperature will be difficult to reach the required level, resulting in substandard furnace drying performance.

[0005] To solve the above problems, the technical solution adopted by this utility model is a furnace drying tube structure for a steel rolling heating furnace, including a steel pipe, a pair of round steel rods fixed on the upper side of the steel pipe, iron wires welded to the top of the pair of round steel rods, a number of gas injection holes opened on the upper side of the steel pipe, and a pair of angle steels fixed on the upper outer side of the steel pipe.

[0006] As a further aspect of this utility model, several gas nozzles are arranged in two rows, located on both sides of the iron wire, to facilitate more stable combustion of the gas.

[0007] As a further embodiment of this invention, the angle steel is bent upwards to facilitate the convergence of gas.

[0008] As a further embodiment of this utility model: the angle steel is located on both sides of the wire, and the angle steel is located below the gas nozzle, which facilitates the concentration of gas.

[0009] Compared with the prior art, the advantages of this utility model are as follows: An angle steel structure is added at the lower edge of the gas nozzle. After the gas is ejected from the gas nozzle, it is refracted by the angle steel and can be connected with the gas from other gas nozzles. This structure can effectively eliminate the flameout problem caused by fluctuations in gas pressure and calorific value, making the furnace baking process safer and more reliable, while also achieving better baking effect and higher efficiency. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0011] Figure 1 This is a three-dimensional view of the overall structure of the drying tube in a steel rolling heating furnace according to this utility model.

[0012] Figure 2 This refers to the furnace drying tube structure of a steel rolling heating furnace in the existing technology.

[0013] In the attached image:

[0014] 1. Steel pipe; 2. Round steel rod; 3. Iron wire; 4. Gas nozzle; 5. Angle steel. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0017] In the existing technology, as shown in the appendix Figure 2 This is a drying tube used for drying the heating furnace. Its structure consists of steel pipe, round steel, and iron wire, with several gas injection holes drilled in the steel pipe. Gas flows through the steel pipe and is ejected through the gas injection holes. The ejected gas is ignited by an ignition source hanging on the iron wire. The heat generated by the combustion of the gas is used to heat the refractory material to remove moisture from the refractory material.

[0018] Combined with appendix Figure 1 It can be seen that the device includes a steel pipe 1, a pair of round steel rods 2 fixed on the upper side of the steel pipe 1, and iron wires 3 welded to the top of the pair of round steel rods 2. Several gas nozzles 4 are opened on the upper side of the steel pipe 1, and the gas nozzles 4 are arranged in two rows, located on both sides of the iron wires 3, so as to make the gas combustion more stable. A pair of angle steels 5 are fixed on the upper outer side of the steel pipe 1. The angle steels 5 are bent upwards to facilitate the gas gathering. The angle steels 5 are located on both sides of the iron wires 3 and below the gas nozzles 4 to facilitate the concentration of gas.

[0019] The working principle of this application is as follows: A pair of round steel rods 2 and iron wires 3 welded to the top are provided on the upper side of the steel pipe 1. Two rows of gas nozzles 4 are opened on both sides of the pipe. The gas is guided out through this layout and ignited by the ignition source hanging on the iron wires 3 to achieve stable combustion. Angle steels 5 bent upward are fixed on both sides of the iron wires 3 and below the gas nozzles 4 above the steel pipe 1. These angle steels can gather and concentrate the gas, making the combustion more complete and stable.

[0020] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A drying tube structure for a steel rolling heating furnace, characterized in that: It includes a steel pipe (1), a pair of round steel rods (2) fixed on the upper side of the steel pipe (1), iron wires (3) welded to the top of the pair of round steel rods (2), several gas nozzles (4) opened on the upper side of the steel pipe (1), and a pair of angle steels (5) fixed on the upper side of the steel pipe (1).

2. The structure of the drying tube of a steel rolling heating furnace according to claim 1, characterized in that: The gas nozzles (4) are arranged in two rows, located on both sides of the wire (3).

3. The structure of the drying tube of a steel rolling heating furnace according to claim 1, characterized in that: The angle steel (5) is bent upwards.

4. The structure of the drying tube of a steel rolling heating furnace according to claim 1, characterized in that: The angle steel (5) is located on both sides of the wire (3), and the angle steel (5) is located below the gas nozzle (4).

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