CN111957939A - Converter coal gas heat accumulation formula tundish roaster is fired to intelligence - Google Patents

Abstract

The invention relates to the technical field of an intelligent converter gas regenerative tundish roaster, and discloses an intelligent converter gas regenerative tundish roaster, comprising a regenerative burner, the regenerative burner An ignition gun is arranged on the upper side, a fire blocking wall is arranged on one side of the regenerative burner, a flue gas channel and an air channel that are connected to each other are arranged on the regenerative burner, and a smoke fan is arranged at one end of the smoke channel, One side of the air passage is provided with a combustion-supporting fan, the other side of the air passage is provided with a gas passage, and the regenerative burner is mounted on a support frame. The intelligent converter gas regenerative tundish roaster adopts the technical measures and intelligent control system based on the structure of the regenerative burner with single reversal of air with converter gas as the combustion medium, so as to improve the safety of the tundish roaster. The purpose of control integration, reducing environmental pollution, increasing the service life of the burner, and reducing energy consumption.

Description

An intelligent converter gas regenerative tundish roaster

technical field

The invention relates to the technical field of an intelligent converter gas regenerative tundish roaster, in particular to an intelligent converter gas regenerative tundish roaster.

Background technique

The tundish is a refractory container used in short-process steelmaking. It first receives the molten steel poured from the ladle, and then distributes it to each mold from the tundish nozzle. As an important basic raw material, steel plays a pivotal role in the economic development of countries around the world. The tundish roaster is a device used to burn gas to heat the tundish. The tundish roaster is a very important part in continuous casting production. Excessive temperature roasting will reduce the service life of the refractory material, and insufficient temperature roasting will cause the tundish to be heated. Cooling the tundish will seriously cause the failure of pouring, so the baking effect of the tundish roaster is very important. In recent years, with the increasing maturity and promotion of high temperature air combustion technology (high temperature air combustion, abbreviated as HTAC), there are also many tundish roasters that use air single regenerative technology to burn natural gas and put into production in China, but the success or application effect is relatively The ideal is not, and it is finally changed to the combustion method of conventional burners. The reason is mainly due to the form of the burner and its combustion control system.

Therefore, it is very important to develop some technically reliable and environmentally friendly new combustion technologies to effectively reduce the converter gas fuel consumption of the tundish roaster and reduce the fuel cost.

SUMMARY OF THE INVENTION

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the present invention provides an intelligent converter gas regenerative tundish roaster, which can fully recover the waste heat of flue gas and achieve regenerative combustion with single reversal of air using converter gas as the combustion medium. The technical measures and intelligent control system based on the structure of the tundish can achieve the advantages of improving the safety control integration of the tundish roaster, reducing environmental pollution, increasing the service life of the burner, and reducing energy consumption, and solves the problem of effectively reducing the tundish roasting. The converter gas fuel consumption reduces the fuel cost.

(2) Technical solutions

In order to achieve the above-mentioned purpose of improving the working efficiency of the intelligent converter gas regenerative tundish roaster, the present invention provides the following technical solutions: an intelligent converter gas regenerative tundish roaster, comprising a regenerative burner , the regenerative burner is provided with an ignition gun, one side of the regenerative burner is provided with a fire retaining wall, and the regenerative burner is provided with a connected flue gas channel and an air channel, the smoke One end of the air passage is provided with a smoke extraction fan, one side of the air passage is provided with a combustion-supporting fan, the other side of the air passage is provided with a gas passage, and the regenerative burner is mounted on a support frame, one end of the support frame is connected to The rotating shaft is connected, the rotating shaft is installed on the upper end of the steel frame, a hydraulic lifting system is arranged on one side of the steel frame, and the ignition gun is electrically connected with the intelligent safety control system.

Preferably, the ignition gun is arranged at the inner front end of the regenerative burner.

Preferably, the regenerative burner adopts a burner box and a burner brick arranged at 120°.

Preferably, the regenerative burner and the steel frame are connected rotatably and movably through a rotating shaft and a support frame.

Preferably, the intelligent safety control system adopts integrated safety automatic control of automatic nitrogen purging, automatic ion ignition, real-time flame monitoring, flameout alarm, and rapid gas cut-off.

(3) Beneficial effects

Compared with the prior art, the present invention provides an intelligent converter gas regenerative tundish roaster, which has the following beneficial effects: the intelligent converter gas regenerative tundish roaster uses converter gas as combustion The technical measures and intelligent control system based on the structure of the regenerative burner with single reversal of medium air can improve the safety control integration of the tundish roaster, reduce environmental pollution, increase the service life of the burner, and reduce energy consumption. Purpose.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a schematic diagram of the connection of the regenerative burner of the present invention.

In the picture: 1. Hydraulic lifting system; 2. Steel frame; 3. Rotating shaft; 4. Fire retaining wall; 5. Regenerative burner; 6. Ignition gun; 7. Flue gas channel; 8. Combustion fan; 9. Air channel; 10. Exhaust fan; 11. Gas channel; 12. Support frame; 13. Intelligent safety control system.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Fig. 1-2, including the regenerative burner 5. The regenerative burner 5 is provided with an ignition gun 6. The ignition gun 6 is arranged at the inner front end of the regenerative burner 5. The converter gas spray gun is supplied with refractory materials and cooling air. The protection technology, the technology of adding refractory material and cooling air protection to the coke oven gas spray gun, can prevent the coke oven gas spray gun from being deformed or burned at high temperature. 5. The burner box and the burner bricks are set at 120°, which reduces the impact on the honeycomb body in the burner box during the lifting process and improves the service life. The burner bricks can be disassembled separately for easy maintenance and replacement. The single regenerative burner achieves the effect of saving energy and reducing flame spillage. Negative pressure technology is generated at the key part where the nozzle brick and the front end of the burner meet. At the key part where the nozzle brick and the front end of the burner meet, the flare speed change is adopted. The technology enables it to generate negative pressure at this key part, avoiding the possibility of converter gas or hot gas leaking out at this interface, and ensuring the safety of converter gas combustion. The regenerative burner 5 is provided with a connected flue gas Channel 7 and air channel 9, one end of the flue gas channel 7 is provided with a smoke extraction fan 10, one side of the air channel 9 is provided with a combustion-supporting fan 8, the other side of the air channel 9 is provided with a gas channel 11, and the regenerative burner 5 is installed on the support. On the frame 12, the regenerative burner 5 and the steel frame 2 are connected by the rotating shaft 3 and the support frame 12 to form a rotating movable connection. One end of the support frame 12 is connected with the rotating shaft 3, and the rotating shaft 3 is installed on the upper end of the steel frame 2. A hydraulic lifting system 1 is provided on one side of the steel frame 2, and the ignition gun 6 is electrically connected to the intelligent safety control system 13. The intelligent safety control system 13 adopts automatic nitrogen purging, automatic ion ignition, real-time flame monitoring, flameout alarm, and rapid gas cut-off. Integrated safety automatic control.

The electrical components appearing in this article are all connected with the external main controller and 220V mains, and the main controller can be a conventional known device controlled by a computer or the like.

To sum up, the intelligent converter gas regenerative tundish roaster achieves the technical measures and intelligent control system based on the structure of the regenerative burner with single reversal of air using converter gas as the combustion medium, and achieves improved performance. The advantages of the integration of safety control of the tundish roaster, reducing environmental pollution, increasing the service life of the burner, and reducing energy consumption have solved the problem of effectively reducing the fuel consumption of the converter gas and fuel cost of the tundish roaster, and further to meet people's needs.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. An intelligent burning converter gas regenerative tundish roaster, comprising a regenerative burner (5), characterized in that: the regenerative burner (5) is provided with an ignition gun (6), so that The regenerative burner (5) is provided with a fire blocking wall (4) on one side, and the regenerative burner (5) is provided with a flue gas channel (7) and an air channel (9) that communicate with each other. One end of the flue gas passage (7) is provided with a smoke extraction fan (10), one side of the air passage (9) is provided with a combustion-supporting fan (8), and the other side of the air passage (9) is provided with a gas passage (11), The regenerative burner (5) is mounted on a support frame (12), one end of the support frame (12) is connected with a rotating shaft (3), and the rotating shaft (3) is mounted on a steel frame (2) At the upper end, a hydraulic lifting system (1) is provided on one side of the steel frame (2), and the ignition gun (6) is electrically connected with an intelligent safety control system (13). 2 . The intelligent converter gas regenerative tundish roaster according to claim 1 , wherein the ignition gun ( 6 ) is arranged at the inner front end of the regenerative burner ( 5 ). 3 . 3. A kind of intelligent combustion converter gas regenerative tundish roaster according to claim 1, characterized in that: the regenerative burner (5) adopts a burner box body and a burner brick at 120° set up. 4. A kind of intelligent combustion converter gas regenerative tundish roaster according to claim 1, characterized in that: between the regenerative burner (5) and the steel frame (2), a rotating shaft ( 3) and the support frame (12) constitute a rotating movable connection. 5. A kind of intelligent burning converter gas regenerative tundish roaster according to claim 1, characterized in that: the intelligent safety control system (13) adopts automatic nitrogen purging, automatic ion ignition, and real-time flame monitoring , flameout alarm, gas quick cut off integrated safety automatic control.

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