A ladle roasting combustion-supporting device

Abstract

The utility model relates to a steelmaking auxiliary equipment technical field especially relates to a steel ladle roasting combustion supporting equipment, including bottom plate, the bottom plate is designed in the shape of 'Shi' character, and bottom plate top one end is provided with air inlet subassembly, the central position department of bottom plate top is installed with heat exchange subassembly, and the inside of heat exchange subassembly is provided with steel ladle, the utility model has the following beneficial effect: with the heat exchange cavity between the double -sided wall of heat preservation bucket and the heat exchange coil of spiral winding, high temperature flue gas and combustion supporting gas that gas assembly recovery are heat exchanged, combustion supporting gas is preheated, effectively reduces fuel consumption, and oxygenometer cooperates with peristaltic pump, can adjust the oxygen content in combustion supporting gas as needed, adapts the combustion demand of different roasting stages, and the flow ratio of oxygen and fuel gas is accurately controlled first flow valve and second flow valve, and in combination with the real -time feedback of infrared flue gas analyzer, the flow ratio of oxygen and fuel gas can be dynamically adjusted, and the incomplete combustion loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking auxiliary equipment, in particular to a ladle baking combustion-supporting device. Background Art

[0002] In the iron and steel smelting industry, as a key device for containing high-temperature molten steel, the preheating and baking quality of the ladle directly affects the temperature stability, purity and production efficiency of the molten steel. With the promotion of the "dual carbon" goal and the tightening of energy consumption control in the iron and steel industry, the high-efficiency energy-saving and precise combustion technology of ladle baking equipment has become the focus of industry research and development.

[0003] At present, traditional ladle baking equipment generally has problems of high energy consumption and low combustion efficiency. Most equipment uses direct combustion heating, and the combustion-supporting air directly participates in combustion without preheating, resulting in low flame temperature and low heat utilization rate. A large amount of fuel heat energy is directly discharged with the high-temperature flue gas, causing energy waste. At the same time, there is a lack of precise control means in the combustion process, and it is difficult to dynamically adjust the ratio of gas and combustion-supporting gas according to the ladle size and baking stage, easily resulting in an imbalance of the air-fuel ratio and incomplete combustion, generating a large amount of pollutants such as CO and NOx, which not only increases the fuel cost but also aggravates environmental pollution. For this reason, this application proposes a ladle baking combustion-supporting device. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a ladle baking combustion-supporting device to solve the problems put forward in the above background art.

[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions:

[0006] A ladle baking combustion-supporting device, comprising:

[0007] A bottom plate, designed in a "plus" shape;

[0008] An air intake component, arranged at one end of the top of the bottom plate;

[0009] A heat exchange component, arranged in the center of the top of the bottom plate and internally provided with a ladle;

[0010] A gas collection component, installed at the other end of the top of the bottom plate;

[0011] Two columns, respectively fixed on both sides of the top of the bottom plate;

[0012] A top plate, installed on the top of the columns;

[0013] A top cover, arranged between the top plate and the heat exchange component, and both sides of the top cover are integrally connected with connecting ears whose inner diameters match the outer diameters of the columns;

[0014] The combustion-supporting mechanism is installed on the top of the top cover;

[0015] Two hydraulic lifting rods are provided and symmetrically installed on both sides of the top of the top plate, and the bottom output end of the hydraulic lifting rod passes through the top plate and connects to the top of the top cover.

[0016] Furthermore, the air intake assembly includes an oxygen generator, a mixing tank, a first peristaltic pump, and a second peristaltic pump. The oxygen generator is installed at the top of the base plate away from the gas collection assembly, and the mixing tank is installed on the base plate between the oxygen generator and the heat exchange assembly. The first peristaltic pump and the second peristaltic pump are respectively installed on the side wall of the mixing tank, and the output end of the oxygen generator is connected to the input end of the first peristaltic pump. The input end of the second peristaltic pump is connected to the external environment through a conduit.

[0017] Furthermore, the heat exchange assembly includes a sealing cap, an insulation barrel, and a heat exchange coil. The insulation barrel has an inverted frustum shape and is vertically installed at the top center of the base plate. A heat exchange cavity is formed between the double-layer sidewalls of the insulation barrel. An air inlet is provided at the bottom of the insulation barrel near the air inlet assembly, and an air outlet is provided at the top of the insulation barrel near the air inlet assembly. The heat exchange coil is spirally wound inside the cavity of the insulation barrel, and both ends of the heat exchange coil are connected to the air inlet and the air outlet, respectively. The outside of the air inlet is connected to the mixing barrel of the air inlet assembly through a conduit. A smoke exhaust port is provided at the bottom of one side of the insulation barrel, and the smoke exhaust port is connected to a smoke exhaust pipe through a conduit.

[0018] Furthermore, the gas collection assembly includes a hydraulic push rod, a gas collection hood, an exhaust fan, a switching valve, an infrared flue gas analyzer, and a cover plate. The gas collection hood has a quarter-circle design, and a cover plate is installed on the top of the gas collection hood. The infrared flue gas analyzer is embedded in the center of the cover plate, and the detection probe of the infrared flue gas analyzer extends vertically downward to the center of the cavity of the gas collection hood. Both sides of the bottom of the gas collection hood are connected to the base plate through the hydraulic push rod. An exhaust fan is fixed at the end of the gas collection hood away from the heat exchange assembly. A switching valve is installed at the air outlet of the exhaust fan, and the two outlets of the switching valve are respectively connected to the heat exchange cavity of the heat insulation barrel and the annular air cavity inside the top cover through corrugated pipes. The gas collection hood has air inlet grids at equal intervals at the end near the heat exchange assembly.

[0019] Furthermore, the top cover has an annular air chamber inside, and the annular air chamber coincides with the center line of the top cover. Multiple nozzles are distributed in a ring array at the bottom of the annular air chamber, and a nozzle is provided at the center of the bottom of the top cover. The axis of the nozzle forms a 30° angle with the vertical direction and points to the center of the nozzle.

[0020] Furthermore, the combustion-supporting mechanism includes an ignition device, a first flow valve, a second flow valve, an oxygen pump, and a gas pump. The ignition device is located at the center of the top of the top cover, and its bottom is sealed to a nozzle via a flange. The oxygen pump is installed at the end of the top of the top cover near the air intake assembly, and the first flow valve is installed at the output end of the oxygen pump. The input end of the first flow valve is connected to the interior of the annular gas chamber. The gas pump is installed at the end of the top of the top cover away from the air intake assembly, and the second flow valve is installed on the pipeline between the gas pump and the ignition device. The input end of the oxygen pump is connected to the gas outlet via a corrugated pipe, and the input end of the gas pump is connected to the gas supply pipeline via a flexible hose.

[0021] Furthermore, the top of the mixing tank is fixed with a top cover, and a stirring motor is installed on the top of the top cover. A stirring blade is rotatably connected to the bottom of the top cover, and the output end of the stirring motor is connected to the top of the stirring blade.

[0022] Furthermore, an annular groove is provided in the center of the top plate, and the inner diameter of the annular groove is larger than the outer diameter of the ignition device.

[0023] The beneficial effects of this utility model are:

[0024] 1. The gas collection assembly, through a switching valve, sends a portion of the high-temperature flue gas into the heat exchange cavity of the insulated barrel and the annular gas cavity of the top cover, realizing the utilization of the waste heat of the flue gas and avoiding the heat waste caused by the direct emission of high-temperature flue gas. The heat exchange cavity between the double-layer side walls of the insulated barrel and the spirally wound heat exchange coil exchange heat between the high-temperature flue gas recovered by the gas collection assembly and the combustion gas, preheating the combustion gas and effectively reducing fuel consumption. The oxygen generator and peristaltic pump work together to adjust the oxygen content in the combustion gas as needed to adapt to the combustion requirements of different baking stages. The first flow valve and the second flow valve precisely control the flow ratio of oxygen to fuel gas. Combined with the real-time feedback of the infrared flue gas analyzer, the flow ratio of oxygen to fuel gas can be dynamically adjusted according to the size of the ladle and the baking stage to ensure that the air-fuel ratio is maintained within the optimal range and reduce incomplete combustion losses.

[0025] 2. The air intake assembly prepares combustion-supporting gas with a preset oxygen concentration through an oxygen generator, a first peristaltic pump, a second peristaltic pump, and a stirring blade. The oxygen content in the combustion-supporting gas can be adjusted as needed to meet the combustion requirements of different baking stages and increase the flame temperature. At the same time, the top cover nozzle is pointed at the center of the nozzle at a 30° angle, so that the combustion-supporting gas and the fuel gas are fully premixed and then burned in a concentrated manner, resulting in a higher and more uniform flame temperature, which significantly improves baking efficiency and quality.

[0026] 3. The infrared flue gas analyzer's detection probe monitors the flue gas composition within the gas collection hood in real time. When it detects excessive CO concentration or O2 content below a set threshold, indicating incomplete combustion, the system activates a dual adjustment mechanism. On one hand, a switching valve re-introduces some of the unburned flue gas into the annular gas chamber of the top cover, mixes it with fresh combustion-supporting gas, and then injects it a second time into the combustion zone via a nozzle, achieving secondary combustion using an ignition device. On the other hand, based on data feedback from the analyzer, the system dynamically adjusts the oxygen and fuel flow ratio through the oxygen pump, fuel pump, and first and second flow valves to ensure that the subsequent combustion process maintains the optimal air-fuel ratio, reducing pollutant emissions and achieving environmental compliance. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a first-view structural schematic diagram of a ladle baking and combustion-supporting device according to the present invention;

[0029] Figure 2 This is a second-view structural schematic diagram of a ladle baking and combustion-supporting device according to the present invention;

[0030] Figure 3 This is a partial cross-sectional structural diagram of a heat exchange component for a ladle baking combustion aid device according to the present invention;

[0031] Figure 4 This is a schematic diagram of the gas collection component structure of a ladle baking combustion aid device according to the present invention;

[0032] Figure 5 This is a partial cross-sectional view of the top cover of a ladle baking combustion aid device according to the present invention;

[0033] Figure 6 This is a partial cross-sectional structural diagram of a ladle baking combustion aid device according to the present invention;

[0034] Figure 7 This is a schematic diagram of the air intake component structure of a ladle baking combustion aid device according to the present invention;

[0035] Figure label:

[0036] 1. Base plate;

[0037] 2. Air intake assembly; 201. Oxygen generator; 202. Mixing tank; 203. First peristaltic pump; 204. Second peristaltic pump; 205. Stirring blade; 206. Top cover; 207. Stirring motor;

[0038] 3. Heat exchange component; 301. Sealing cover; 302. Heat preservation barrel; 303. Air inlet; 304. Air outlet; 305. Heat exchange coil; 306. Smoke exhaust port;

[0039] 4. Ladle;

[0040] 5. Gas collection component; 501. Hydraulic ejector rod; 502. Gas collection hood; 503. Exhaust fan; 504. Switching valve; 505. Infrared flue gas analyzer; 506. Cover plate; 507. Air inlet grid;

[0041] 6. Column;

[0042] 7. Top cover; 701. Connecting ear; 702. Annular air cavity; 703. Sprinkler head; 704. Nozzle;

[0043] 8. Combustion assisting mechanism; 801. Ignition device; 802. First flow valve; 803. Second flow valve; 804. Oxygen pump; 805. Gas pump;

[0044] 9. Top plate; 901. Annular through groove;

[0045] 10. Hydraulic lifting rod. Specific embodiments

[0046] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0047] Please refer to Figure 1 and Figure 2 , the present utility model provides a technical solution:

[0048] A ladle baking combustion assisting device, including a bottom plate 1, designed in a "plus" shape;

[0049] An air inlet component 2, arranged at one end of the top of the bottom plate 1;

[0050] A heat exchange component 3, arranged at the center of the top of the bottom plate 1, and a ladle 4 is arranged inside;

[0051] A gas collection component 5, installed at the other end of the top of the bottom plate 1;

[0052] Two columns 6, respectively fixed on both sides of the top of the bottom plate 1;

[0053] A top plate 9, installed on the top of the column 6;

[0054] A top cover 7, arranged between the top plate 9 and the heat exchange component 3, and connecting ears 701 with an inner diameter matching the outer diameter of the column 6 are integrally connected to both sides of the top cover 7;

[0055] A combustion assisting mechanism 8, installed on the top of the top cover 7;

[0056] Two hydraulic lifting rods 10 are symmetrically installed on both sides of the top of the top plate 9. The bottom output end of the hydraulic lifting rod 10 passes through the top plate 9 and connects to the top of the top cover 7. The heat exchange component 3 is located in the center of the bottom plate 1. Together with the top cover 7 driven by the hydraulic lifting rods 10, the ladle 4 can be quickly loaded and unloaded. The hydraulic lifting rods 10 precisely control the lifting height of the top cover 7, ensuring a tight seal between the top cover 7 and the ladle 4, reducing heat loss, and facilitating the rapid switching of ladle 4 of different specifications to meet diverse production needs.

[0057] See Figure 1 and Figure 7 The air intake assembly 2 mainly includes an oxygen generator 201, a mixing tank 202, a first peristaltic pump 203, and a second peristaltic pump 204. The oxygen generator 201 is installed at the top of the base plate 1, away from the gas collection assembly 5. The mixing tank 202 is installed on the base plate 1 between the oxygen generator 201 and the heat exchange assembly 3. The first peristaltic pump 203 and the second peristaltic pump 204 are respectively installed on the side wall of the mixing tank 202. The installation directions of the first peristaltic pump 203 and the second peristaltic pump 204 are perpendicular to each other, and the output end of the oxygen generator 201 is perpendicular to the first peristaltic pump 204. The input end of the first peristaltic pump 203 is connected to the input end of the second peristaltic pump 204, which is connected to the external environment through a conduit. The oxygen generator 201 can produce high-purity oxygen as needed. The delivery volume is precisely controlled by the first peristaltic pump 203. At the same time, the second peristaltic pump 204 introduces air from the outside. The two are mixed in the mixing tank 202 according to a set ratio. This design can flexibly adjust the oxygen concentration of the combustion-supporting gas and can adapt to the different requirements of combustion intensity in different baking stages of the ladle 4, such as preheating, heating, and heat preservation. Compared with the fixed ratio air intake method, the combustion efficiency is higher.

[0058] See Figure 1 and Figure 3 The heat exchange component 3 mainly includes a sealing cover 301, an insulation tank 302, and a heat exchange coil 305. The heat exchange container 302 has an inverted frustum shape and is vertically installed at the top center of the base plate 1. A heat exchange cavity is formed between the double-layer sidewalls of the heat exchange container 302. An air inlet 303 is provided at the bottom of the heat exchange container 302 near the air inlet component 2, and an air outlet 304 is provided at the top of the heat exchange container 302 near the air inlet component 2. A heat exchange coil 305 is spirally wound inside the cavity of the heat exchange container 302, and the two ends of the heat exchange coil 305 are connected to the air inlet 303 and the air outlet 304, respectively. The outside of the air inlet 303 is connected to the mixing tank 202 of the air inlet component 2 through a conduit. A smoke exhaust port 306 is provided at the bottom of one side of the heat exchange container 302, and the smoke exhaust port 306 is connected to the smoke exhaust pipe (not shown in the figure) through a conduit. The design of the heat exchange coil 305 greatly increases the heat exchange area. Compared with the traditional straight cylindrical structure, the heat exchange efficiency is higher, which can preheat the combustion gas to the ideal temperature and effectively reduce fuel consumption in the subsequent combustion process.

[0059] See Figure 2 and Figure 4 The gas collection assembly 5 mainly includes a hydraulic jack 501, a gas collection hood 502, an exhaust fan 503, a switching valve 504, an infrared flue gas analyzer 505, and a cover plate 506. The gas collection hood 502 is designed as a quarter-circle ring, and a cover plate 506 is installed on the top of the gas collection hood 502. An infrared flue gas analyzer 505 is embedded in the center of the cover plate 506, and the detection probe of the infrared flue gas analyzer 505 extends vertically downward into the cavity of the gas collection hood 502. Both sides of the bottom of the gas collection hood 502 are connected to the base plate 1 through hydraulic push rods 501. An exhaust fan 503 is fixed at the end of the gas collection hood 502 away from the heat exchange component 3. A switching valve 504 is installed at the air outlet of the exhaust fan 503, and the two outlets of the switching valve 504 are respectively connected to the heat exchange cavity of the heat insulation barrel 302 and the annular air cavity 702 inside the top cover 7 through corrugated pipes. The heat exchange component 3 uses the heat exchange cavity between the double-layer side walls of the heat insulation barrel 302 and the spirally wound heat exchange coil 305 to fully exchange heat between the high-temperature flue gas recovered by the gas collection component 5 and the combustion-supporting gas.

[0060] The gas collection hood 502 has air inlet grilles 507 evenly spaced at one end near the heat exchange component 3. The gas collection hood 502 adopts a quarter-circle design, and together with the evenly spaced air inlet grilles 507 at the bottom, it can cover a large area and multiple heights above the ladle 4, effectively collecting the high-temperature flue gas generated during the baking process. An infrared flue gas analyzer 505 is embedded in the center of the cover plate 506, with its detection probe extending vertically to the center of the gas collection hood 502 cavity. It can detect the concentration of key components such as CO and O2 in the flue gas in real time and accurately. When the CO concentration exceeds the standard or the O2 content is lower than the set threshold, it determines... In case of incomplete combustion, the system activates a dual regulation mechanism. On the one hand, the switching valve 504 re-introduces some of the unburned flue gas into the annular gas chamber 702 of the top cover 7, mixes it with fresh combustion-supporting gas, and then injects it a second time into the combustion zone through the nozzle 703, achieving secondary combustion using the ignition device 801. On the other hand, based on the data fed back by the analyzer, the system dynamically adjusts the flow ratio of oxygen and gas through the oxygen pump 804, the gas pump 805, the first flow valve 802, and the second flow valve 803 to ensure that the subsequent combustion process maintains the optimal air-fuel ratio, reduces pollutant emissions, and achieves environmental compliance.

[0061] See Figure 1 , Figure 5 and Figure 6The top cover 7 has an annular gas chamber 702 inside, and the annular gas chamber 702 coincides with the center line of the top cover 7. Multiple nozzles 703 are distributed in a ring array at the bottom of the annular gas chamber 702, and a nozzle 704 is set at the center of the bottom of the top cover 7. The axis of the nozzle 703 is at a 30° angle to the vertical direction and points to the center of the nozzle 704. The annular array of nozzles 703 at the bottom, together with the central nozzle 704, forms a multi-channel gas output structure, which provides a more balanced heat coverage for the top of the ladle 4 and avoids local overheating or uneven baking. The 30° angle between the axis of the nozzle 703 and the vertical direction and the center of the nozzle 704 enables the combustion-supporting gas and the combustion gas to form a spiral counter-mixing after being sprayed out, which can greatly increase the gas mixing area and turbulence intensity, promote the full premixing of combustion gas and combustion-supporting gas, and achieve more complete and intense combustion.

[0062] See Figure 1 and Figure 5 The combustion-supporting mechanism 8 includes an ignition device 801, a first flow valve 802, a second flow valve 803, an oxygen pump 804, and a gas pump 805. The ignition device 801 is located at the center of the top of the top cover 7, and its bottom is sealed to the nozzle 704 via a flange. The oxygen pump 804 is installed at the end of the top of the top cover 7 near the air intake assembly 2, and the first flow valve 802 is installed at the output end of the oxygen pump 804. The input end of the first flow valve 802 is connected to the interior of the oxygen pump 804. The gas pump 805 is installed at the end of the top of the top cover 7 away from the air intake assembly 2. A second flow valve 803 is installed on the pipeline between the ignition device 801 and the gas pump 804. The input end of the oxygen pump 804 is connected to the gas outlet 304 through a corrugated pipe, and the input end of the gas pump 805 is connected to the gas supply pipeline through a flexible hose. The oxygen pump 804 and the gas pump 805, together with the first flow valve 802 and the second flow valve 803, can achieve precise adjustment of the oxygen and gas flow rates. The input end of the oxygen pump 804 is connected to the gas outlet 304 of the heat exchange component 3, which can obtain the preheated combustion-supporting gas. At the same time, the system dynamically adjusts the oxygen and gas flow rates in conjunction with the real-time feedback of the infrared flue gas analyzer 505.

[0063] See Figure 7 The top of the mixing tank 202 is fixed with a cover 206, and a stirring motor 207 is installed on the top of the cover 206. A stirring blade 205 is rotatably connected to the bottom of the cover 206, and the output end of the stirring motor 207 passes through the cover 206 and is fixedly connected to the top of the stirring blade 205. When the stirring motor 207 works, it drives the stirring blade 205 to rotate, which can make oxygen and air mix evenly in the mixing tank 202, resulting in better combustion effect in subsequent use.

[0064] See Figure 1An annular groove 901 is provided in the center of the top plate 9, and the inner diameter of the annular groove 901 is larger than the outer diameter of the ignition device 801, so that when the top cover 7 is moved to the highest point, it can avoid the ignition device 801 and facilitate the insertion of the ladle 4.

[0065] Working principle: In the air intake assembly 2, oxygen generated by the oxygen generator 201 is sent to the mixing tank 202 via the first peristaltic pump 203, and air is introduced by the second peristaltic pump 204. The stirring motor 207 drives the stirring blade 205 to rotate. After mixing by the stirring blade 205, the gas with the required oxygen concentration is formed. The gas enters the heat exchange coil 305 of the heat exchange assembly 3 through the air inlet 303. The high-temperature flue gas recovered by the gas collection assembly 5 enters the heat exchange cavity of the heat-insulating tank 302 through the corrugated pipe on the switching valve 504. After the gas assists the gas exchange heat with the high-temperature flue gas recovered by the gas collection assembly 5 between the double-layer side walls of the heat-insulating tank 302, it flows out from the air outlet 304. The preheated gas enters the annular gas chamber 702 of the top cover 7 and is sprayed onto the central nozzle 704 through the nozzle 703. The gas pump 805 delivers gas synchronously, and the ignition device 801 ignites it to form a flame to bake the ladle 4. Oxygen pump 804 and gas pump 805, in conjunction with flow valves, adjust gas flow based on data monitored by infrared flue gas analyzer 505. If combustion is incomplete, gas collection assembly 5 collects the unburned flue gas, and switching valve 504 sends part of the flue gas into annular gas chamber 702 for secondary combustion. Gas collection hood 502 collects flue gas through air inlet grille 507, and exhaust fan 503 extracts the flue gas. The flue gas is then distributed by switching valve 504 to the heat exchange of heat-insulating barrel 302 and the annular gas chamber 702 of top cover 7. Base plate 1 supports each component, and columns 6, top plate 9, and hydraulic lifting rod 10 work together to lift and lower the top cover 7.

[0066] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ladle baking and combustion aid device, characterized in that, Comprising: A bottom plate, designed in a "plus" shape; An air intake assembly, arranged at one end of the top of the bottom plate; A heat exchange assembly, arranged at the center of the top of the bottom plate and having a ladle inside; A gas collection assembly, installed at the other end of the top of the bottom plate; Two columns, respectively fixed to both sides of the top of the bottom plate; A top plate, installed at the top of the columns; A top cover, arranged between the top plate and the heat exchange assembly, and connection ears with an inner diameter matching the outer diameter of the columns are integrally connected to both sides of the top cover; A combustion assisting mechanism, installed at the top of the top cover; Two hydraulic lifting rods, symmetrically installed on both sides of the top of the top plate, and the bottom output ends of the hydraulic lifting rods penetrate the top plate and are connected to the top of the top cover.

2. The ladle baking and combustion aid equipment according to claim 1, characterized in that, The air intake assembly includes an oxygen generator, a mixing barrel, a first peristaltic pump, and a second peristaltic pump. The oxygen generator is installed at one end of the top of the bottom plate far from the gas collection assembly, and the mixing barrel is installed on the bottom plate between the oxygen generator and the heat exchange assembly. The first peristaltic pump and the second peristaltic pump are respectively installed on the side wall of the mixing barrel. The output end of the oxygen generator is connected to the input end of the first peristaltic pump, and the input end of the second peristaltic pump is communicated with the external environment through a conduit.

3. The ladle baking and combustion aid equipment according to claim 1, characterized in that, The heat exchange assembly includes a sealing cover, a heat preservation barrel, and a heat exchange coil. The heat preservation barrel has an inverted frustum shape structure and is vertically installed at the center of the top of the bottom plate. A heat exchange cavity is formed between the double-layer side walls of the heat preservation barrel. An air inlet is arranged at the bottom of the heat preservation barrel near the air intake assembly, and an air outlet is arranged at the top of the heat preservation barrel near the air intake assembly. The heat exchange coil is spirally wound in the cavity of the heat preservation barrel, and both ends of the heat exchange coil are respectively connected to the air inlet and the air outlet. The outside of the air inlet is connected to the mixing barrel of the air intake assembly through a conduit. A smoke exhaust port is arranged at the bottom of one side of the heat preservation barrel, and the smoke exhaust port is connected to a smoke exhaust pipe through a conduit.

4. The ladle baking and combustion aid equipment according to claim 1, characterized in that, The gas collection assembly includes a hydraulic ejector rod, a gas collection hood, a suction fan, a switching valve, an infrared flue gas analyzer, and a cover plate. The gas collection hood is designed in a quarter-ring shape, and a cover plate is installed at the top of the gas collection hood. The infrared flue gas analyzer is embedded in the center of the cover plate, and the detection probe of the infrared flue gas analyzer vertically extends downward to the center of the cavity of the gas collection hood. Both sides of the bottom of the gas collection hood are connected to the bottom plate through the hydraulic ejector rod, and a suction fan is fixed at one end of the gas collection hood far from the heat exchange assembly. A switching valve is installed at the air outlet of the suction fan, and the two outlets of the switching valve are respectively connected to the heat exchange cavity of the heat preservation barrel and the annular gas cavity inside the top cover through bellows. Air intake grids are equally spaced at one end of the gas collection hood near the heat exchange assembly.

5. The ladle baking and combustion aid equipment according to claim 1, characterized in that, An annular gas cavity is formed inside the top cover, and the annular gas cavity coincides with the center line of the top cover. A plurality of nozzles are arranged in an annular array at the bottom of the annular gas cavity, and a nozzle is arranged at the central position of the bottom of the top cover. The axis of the nozzle forms a 30° angle with the vertical direction and points to the center of the nozzle.

6. The ladle baking combustion aid equipment according to claim 1, characterized in that, The combustion-supporting mechanism includes an ignition device, a first flow valve, a second flow valve, an oxygen pump, and a gas pump. The ignition device is located at the center of the top of the cover, and its bottom is sealed to a nozzle via a flange. The oxygen pump is installed at the end of the top of the cover near the air intake assembly, and the first flow valve is installed at the output end of the oxygen pump. The input end of the first flow valve is connected to the inside of the annular gas chamber. The gas pump is installed at the end of the top of the cover away from the air intake assembly, and the second flow valve is installed on the pipeline between the gas pump and the ignition device. The input end of the oxygen pump is connected to the gas outlet via a corrugated pipe, and the input end of the gas pump is connected to the gas supply pipeline via a flexible hose.

7. The ladle baking combustion aid equipment according to claim 2, characterized in that, The mixing tank is fixed with a top cover, and a stirring motor is installed on the top of the top cover. A stirring blade is rotatably connected to the bottom of the top cover, and the output end of the stirring motor is connected to the top of the stirring blade.

8. The ladle baking combustion aid equipment according to claim 1, characterized in that, The top plate has an annular groove in the center, and the inner diameter of the annular groove is larger than the outer diameter of the ignition device.

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