A device for baking a slag extractor and a runner of a blast furnace with a blast furnace gas

Abstract

The utility model discloses a kind of high furnace gas roasting and remove the device of deslagging device, it is related to blast furnace ironmaking technical field, including blast furnace gas supply main pipe, remote control total valve, blast furnace gas supply branch pipe, support frame and safety protection system, remote control total valve is provided on the blast furnace gas supply main pipe.The utility model makes operator through remote control equipment, according to actual roasting condition, accurately adjusts the opening and closing degree of valve, and then control the size of gas flow, avoid the tedious operation of traditional wood roasting in manual frequent adjustment wood consumption, blast furnace gas supply main pipe is responsible for the gas generated by blast furnace is transported to each roasting area, blast furnace gas supply branch pipe further distributes gas to the specific roasting position of skimming device and flow nozzle, accelerates the removal speed of moisture in castable, shortens roasting time, improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace ironmaking technology, specifically to a device for a blast furnace gas baking slag remover and a spout. Background Technology

[0002] Blast furnace ironmaking is a crucial step in modern steel production. It involves continuously producing liquid pig iron using iron-bearing ores such as coke, rich natural lumps, sinter, and pellets, along with fluxes like limestone and dolomite, in a vertical reactor, also known as a blast furnace. The main process is as follows: a burden structure consisting of high-basicity sinter, acidic pellets, and a small amount of natural lumps; fuel primarily composed of coke and pulverized coal; and the reduction of iron-bearing raw materials by blowing in hot air at 1000–1250 degrees Celsius. Finally, pig iron is produced through slag-iron separation.

[0003] In the blast furnace ironmaking process, the slag skimmer and the swing nozzle are key components. After a period of operation, due to the erosion and burning caused by high temperature and materials, they need to be repaired with castable. However, the moisture contained in the castable must be removed by baking before it is put into use. The traditional method is to bake it with wood, which has the disadvantages of large wood consumption (20 tons each time), large amount of manual handling, and rough manual control of wood consumption.

[0004] Therefore, a device for blast furnace gas baking slag remover and nozzle is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a device for a blast furnace gas baking slag remover and a nozzle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for blast furnace gas baking slag remover and nozzle, comprising a blast furnace gas supply main pipe, a remote control main valve, blast furnace gas supply branch pipes, a support frame and a safety protection system. The blast furnace gas supply main pipe is equipped with a remote control main valve. One end of the blast furnace gas supply main pipe is connected to two sets of blast furnace gas supply branch pipes. One end of each of the two sets of blast furnace gas supply branch pipes is connected to a combustion nozzle. The two sets of combustion nozzles are respectively located at the specific baking positions of the slag remover and the nozzle. The combustion nozzle is connected to the blast furnace gas supply branch pipe via a corrugated pipe. A mounting bracket is movably installed on the outside of the combustion nozzle. A support bracket is fixedly installed at the bottom of the mounting bracket. A fixing bracket is fixedly installed at the rear end of the mounting bracket. A rotating rod is rotatably installed at the rear end of the mounting bracket. A transmission gear is fixedly installed on the outside of the rotating rod. A driven gear is fixedly installed on the outside of the combustion nozzle. The transmission gear and the driven gear mesh with each other. A protective cover corresponding to the driven gear and the transmission gear is fixedly installed on the outside of the mounting bracket.

[0007] Preferably, both sets of blast furnace gas supply branch pipes are equipped with remote control auxiliary valves. Operators can remotely control the equipment to precisely adjust the opening and closing degree of the valves according to the actual baking situation, thereby controlling the gas flow rate and achieving the regulation of baking temperature.

[0008] Preferably, a pressure regulator is provided between the main blast furnace gas supply pipe and the branch blast furnace gas supply pipe. The pressure regulator can ensure the pressure of the gas is stable during the transportation process, prevent uneven baking temperature or equipment damage caused by pressure fluctuations, and ensure the stable operation of the entire baking process.

[0009] Preferably, both the remote-controlled main valve and the remote-controlled secondary valve are equipped with an intelligent control system. This system can pre-set the baking program, including parameters such as baking time and temperature curve. During the baking process, the intelligent control system can automatically adjust the opening and closing of the valves according to the preset program to achieve precise control of the gas flow. At the same time, it can also monitor the baking temperature parameters in real time and feed the data back to the operator.

[0010] Preferably, the combustion nozzle is located at the repair position of the slag skimmer and the nozzle, which enables the gas to form a uniform flame area around the slag skimmer and the nozzle, ensuring all-round and uniform heating of the equipment.

[0011] Preferably, the safety protection system is equipped with a leak detection device, a flame monitoring device, and an emergency shut-off device. The leak detection device can monitor in real time whether gas leaks occur at the gas pipeline and equipment connection points. Once a leak is detected, an alarm is immediately issued and the emergency shut-off device is automatically activated to cut off the gas supply and prevent gas leaks from causing safety accidents. The flame monitoring device can monitor the combustion status. If an abnormal situation such as flame extinguishing occurs, the emergency shut-off device will also be triggered.

[0012] Preferably, a motor is fixedly installed at the rear end of the fixing frame, and a bevel gear set is fixedly installed on the outer side of the rotating rod, the bevel gear set being fixedly connected to the output end of the motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention features a blast furnace gas supply main pipe, blast furnace gas supply branch pipes, remote control valves, and a safety protection system. The remote control valves allow operators to precisely adjust the valve opening and closing based on the actual baking conditions, thereby controlling the gas flow rate and flexibly regulating the baking temperature. This improves the controllability and safety of the baking process, avoiding the tedious manual adjustments to wood usage required in traditional wood baking. The blast furnace gas supply main pipe delivers the gas generated by the blast furnace to each baking area, while the blast furnace gas supply branch pipes further distribute the gas to the specific baking locations of the skimmer and nozzle, accelerating the removal of moisture from the castable, shortening the baking time, and improving production efficiency.

[0014] This utility model utilizes the interaction between the driven gear, transmission gear, motor, and bevel gear set. The output end of the motor enables the rotating rod to rotate synchronously under the transmission action of the bevel gear set, replacing the transmission gear. Through the meshing between the transmission gear and the driven gear, the combustion nozzle is driven to swing up and down, which can adjust the position of the skimmer and the nozzle at different positions, and can also perform back-and-forth baking over a large area. Attached Figure Description

[0015] Figure 1 This is a first perspective structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the second appearance of the present utility model; Figure 3 This is a three-dimensional structural diagram of the combustion nozzle of this utility model; Figure 4 This is a schematic diagram of the meshing structure of the driven gear and the transmission gear of this utility model.

[0016] In the diagram: 1. Blast furnace gas supply main pipe; 101. Remote control main valve; 102. Pressure regulator; 103. Blast furnace gas supply branch pipe; 104. Remote control auxiliary valve; 105. Bellows; 2. Support frame; 201. Mounting frame; 202. Combustion nozzle; 203. Driven gear; 204. Transmission gear; 205. Protective cover; 206. Fixing frame; 207. Motor; 208. Rotating rod; 209. Bevel gear set. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] The embodiments of this utility model will be described below based on its overall structure.

[0019] Please see Figure 1 - Figure 4 A device for baking slag remover and nozzle of blast furnace gas includes a blast furnace gas supply main pipe 1, a remote control main valve 101, a blast furnace gas supply branch pipe 103, a support frame 2 and a safety protection system. The blast furnace gas supply main pipe 1 is equipped with a remote control main valve 101. One end of the blast furnace gas supply main pipe 1 is connected to two sets of blast furnace gas supply branch pipes 103. One end of each set of blast furnace gas supply branch pipes 103 is connected to a combustion nozzle 202. The two sets of combustion nozzles 202 are located at the specific baking positions of the slag remover and the nozzle, respectively. The combustion nozzle 202 is connected to the blast furnace gas supply branch pipe 103 via a corrugated pipe 105. A mounting bracket 201 is movably mounted on the outer side of the combustion nozzle 202. A support frame 2 is fixedly mounted on the bottom of the mounting bracket 201. A fixing bracket 206 is fixedly mounted on the rear end of the mounting bracket 201. A rotating rod 208 is rotatably mounted on the rear end of the mounting bracket 201. A transmission gear 204 is fixedly mounted on the outer side of the rotating rod 208. A driven gear 203 is fixedly mounted on the outer side of the combustion nozzle 202. The transmission gear 204 and the driven gear 203 mesh with each other. A mounting bracket 201 is fixedly mounted on the outer side of the mounting bracket 201. The protective covers 205 corresponding to the driven gear 203 and the transmission gear 204, and the two sets of blast furnace gas supply branch pipes 103 are equipped with remote control auxiliary valves 104. The operator can remotely control the equipment to precisely adjust the opening and closing degree of the valve according to the actual baking situation, thereby controlling the gas flow rate and realizing flexible control of the baking temperature. This improves the controllability and safety of the baking process and avoids the tedious operation of frequently adjusting the amount of wood used manually in traditional wood baking.

[0020] Please see Figure 2 and Figure 3 A pressure regulator 102 is installed between the blast furnace gas supply main pipe 1 and the blast furnace gas supply branch pipe 103. The pressure regulator 102 can ensure the pressure of the gas during the transportation process, prevent uneven baking temperature or equipment damage caused by pressure fluctuations, and ensure the stable operation of the entire baking process. The remote control main valve 101 and the remote control secondary valve 104 are both equipped with intelligent control systems. The system can preset the baking program, including parameters such as baking time and temperature curve. During the baking process, the intelligent control system can automatically adjust the opening and closing of the valves according to the preset program to achieve precise control of the gas flow. At the same time, it can also monitor parameters such as baking temperature in real time and feed the data back to the operator.

[0021] Please see Figure 3 and Figure 4The combustion nozzle 202 is located at the repair position of the slag skimmer and the nozzle, which can make the gas form a uniform flame area around the slag skimmer and the nozzle, ensuring all-round and uniform heating of the equipment. The safety protection system is equipped with a leak detection device, a flame monitoring device, and an emergency shut-off device. The leak detection device can monitor whether there is a gas leak at the gas pipeline and equipment connection in real time. Once a leak is detected, an alarm will be issued immediately and the emergency shut-off device will be automatically activated to cut off the gas supply and prevent the gas leak from causing a safety accident. The flame monitoring device can monitor the combustion status. If an abnormal situation such as flame extinguishing occurs, it will also trigger the emergency shut-off device. The motor 207 is fixedly installed at the rear end of the fixed frame 206, and the bevel gear set 209 is fixedly installed on the outside of the rotating rod 208. The bevel gear set 209 is fixedly connected to the output end of the motor 207. The transmission gear 204 and the driven gear 203 mesh with each other. By causing the combustion nozzle 202 to swing up and down, it can be adjusted for different positions of the slag skimmer and the nozzle, and can also be used for back-and-forth heating of a large area.

[0022] Working Principle: During operation, the remote-controlled valve device allows operators to precisely adjust the valve opening and closing degree according to the actual baking situation, thereby controlling the gas flow rate and achieving flexible control of the baking temperature. This improves the controllability and safety of the baking process, avoiding the tedious manual adjustment of wood usage in traditional wood baking. The blast furnace gas supply main pipe 1 is responsible for delivering the gas generated by the blast furnace to each baking area, while the blast furnace gas supply branch pipe 103 further distributes the gas to the specific baking locations of the skimmer and nozzle. The pressure regulating device ensures stable gas pressure during transportation, preventing uneven baking temperature or equipment damage due to pressure fluctuations, thus ensuring stable operation of the entire baking process. The remote-controlled valve device is equipped with an intelligent control system. This system allows for pre-setting of baking programs to adjust baking strategies in a timely manner, further improving baking efficiency and quality, reducing manual intervention costs and error risks, and ensuring that the gas forms a uniform flame area around the skimmer and nozzle, guaranteeing all-round and uniform heating of the equipment. This effectively improves the baking effect, accelerates the removal of moisture from the castable, shortens the baking time, and increases production efficiency. Through the output of the motor 207, the rotating rod 208 rotates synchronously under the transmission of the bevel gear set 209, which in turn rotates the drive gear 204. The drive gear 204 meshes with the driven gear 203, causing the combustion nozzle 202 to swing up and down, which can adjust the position of the skimmer and nozzle at different locations, and can also perform back-and-forth baking over a wide area.

[0023] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A device for blast furnace gas baking and slag removal device and nozzle, comprising a blast furnace gas supply main pipe (1), a remote control main valve (101), a blast furnace gas supply branch pipe (103), a support frame (2), and a safety protection system, characterized in that: The blast furnace gas supply main pipe (1) is equipped with a remote control main valve (101). One end of the blast furnace gas supply main pipe (1) is connected to two sets of blast furnace gas supply branch pipes (103). One end of each of the two sets of blast furnace gas supply branch pipes (103) is connected to a combustion nozzle (202). The two sets of combustion nozzles (202) are located at the specific baking positions of the skimmer and the flow nozzle, respectively. The combustion nozzle (202) is connected to the blast furnace gas supply branch pipe (103) via a corrugated pipe (105). A mounting bracket (201) is movably installed on the outside of the combustion nozzle (202). A support bracket (2) is fixedly installed at the bottom of the mounting bracket (201). A fixing bracket (206) is fixedly installed at the rear end of the mounting bracket (201). A rotating rod (208) is rotatably installed at the rear end of the mounting bracket (201). A transmission gear (204) is fixedly installed on the outside of the rotating rod (208). A driven gear (203) is fixedly installed on the outside of the combustion nozzle (202). The transmission gear (204) and the driven gear (203) mesh with each other. A protective cover (205) corresponding to the driven gear (203) and the transmission gear (204) is fixedly installed on the outside of the mounting bracket (201).

2. The device for blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: Both sets of blast furnace gas supply branch pipes (103) are equipped with remote control auxiliary valves (104). Operators can remotely control the equipment to precisely adjust the opening and closing of the valves according to the actual baking situation, thereby controlling the gas flow rate and achieving the regulation of baking temperature.

3. The device for blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: A pressure regulator (102) is provided between the main blast furnace gas supply pipe (1) and the branch blast furnace gas supply pipe (103). The pressure regulator (102) can ensure the pressure of the gas during the transportation process, prevent uneven baking temperature or equipment damage caused by pressure fluctuations, and ensure the stable operation of the entire baking process.

4. The device for blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: Both the remote control main valve (101) and the remote control secondary valve (104) are equipped with an intelligent control system. The system can preset the baking program, including the parameters of baking time and temperature curve. During the baking process, the intelligent control system can automatically adjust the opening and closing of the valve according to the preset program to achieve precise control of the gas flow. At the same time, it can also monitor the parameters of baking temperature in real time and feed the data back to the operator.

5. The device for blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: The combustion nozzle (202) is located at the repair position of the slag remover and the nozzle, which enables the gas to form a uniform flame area around the slag remover and the nozzle, ensuring all-round and uniform heating of the equipment.

6. The apparatus for a blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: The safety protection system is equipped with a leak detection device, a flame monitoring device, and an emergency shut-off device. The leak detection device can monitor in real time whether there is a gas leak at the gas pipeline and equipment connection. Once a leak is detected, an alarm will be issued immediately and the emergency shut-off device will be automatically activated to cut off the gas supply and prevent the gas leak from causing a safety accident. The flame monitoring device can monitor the combustion status. If an abnormal situation of flame extinguishing occurs, the emergency shut-off device will also be triggered.

7. The device for blast furnace gas baking slag remover and nozzle according to claim 1, characterized in that: A motor (207) is fixedly installed at the rear end of the fixed frame (206), and a bevel gear set (209) is fixedly installed on the outer side of the rotating rod (208). The bevel gear set (209) is fixedly connected to the output end of the motor (207).

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