Combustion aid for sinter

Abstract

The utility model provides a kind of sinter combustion-supporting device, it is related to sinter combustion-supporting technical field, including base, lower cylinder, the lower cylinder is fixedly installed in the upper end of base, the inside of base is equipped with isolation net plate, upper cylinder, the upper cylinder is fixedly installed in the upper end of lower cylinder, the outer surface of lower cylinder is connected with multiple groups of communicating vessels in annular, the outer surface of two second fans fixedly installed in upper cylinder, the outer surface of one of second fan is equipped with combustion-supporting material valve, the inside of upper cylinder is equipped with gas turning chamber, the inside of gas turning chamber is equipped with adjustment assembly, the middle part of lower cylinder is equipped with sintering belt and is inserted, first fan, the first fan is fixedly installed in the outer surface of base in annular, the utility model is favorable to for a kind of sinter combustion-supporting device use, can evenly send into, layered combustion, improve the uniform effect of sinter, guarantee sinter finished product quality.

Description

Technical Field

[0001] This utility model relates to the field of sinter combustion aid technology, specifically to a sinter combustion aid device. Background Technology

[0002] Sintering equipment is a complete set of mechanical equipment used to process powdered iron-containing raw materials (such as iron ore powder, return ore, flux, fuel, etc.) into sinter with certain strength and metallurgical properties through a high-temperature sintering process. This equipment is widely used in the iron and steel smelting industry and is an important raw material pretreatment step in blast furnace ironmaking.

[0003] A Chinese patent with publication number CN221172288U discloses a combustion air supply device for increasing the yield of sintered ore. The device includes a housing with an air inlet pipe attached to one end. An air extraction and filtration mechanism is installed inside the air inlet pipe. The air extraction and filtration mechanism includes a horizontal plate, a rotating rod, an impeller, a sliding rod, a filter screen, a support spring, a protruding rod, a protrusion, a fan, a vortex air duct, and a heating rod. The key technical point is that it provides oxygen for combustion and simultaneously heats the flowing air with the heating rod to increase the air temperature.

[0004] While existing technologies can provide oxygen for combustion and use fans to control temperature and deliver air, they also prevent uneven fuel distribution, which can lead to over-burning and under-burning of sintered mineral materials on one side, creating an edge effect and increasing the yield of sintered ore. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a combustion aid device for sintered ore.

[0006] The technical solution adopted by this utility model is: a combustion aid device for sintered ore, comprising: a base; The lower cylinder is fixedly installed on the upper end of the base, and an isolation mesh plate is installed on the inner side of the base; The upper cylinder is fixedly installed at the upper end of the lower cylinder. Multiple sets of communicating vessels are interlocked around the outer surface of the lower cylinder. Two second fans are fixedly installed on the outer surface of the upper cylinder. A fuel-aiding valve is fixedly installed on the outer surface of one of the second fans. A gas-turning chamber is opened inside the upper cylinder. An adjustment component is provided on the inner side of the gas-turning chamber. A sintering belt is interlocked in the middle of the lower cylinder. The first fan is fixedly installed in a ring on the outer surface of the base, and the outer surfaces of multiple first fans are fixedly connected with interface pipes. The first combustion-supporting tube is fixedly installed on the outside of the base and the lower cylinder through multiple sets of lower connecting vessels, and all of the multiple sets of lower connecting vessels are connected to the base. The second combustion-supporting pipe is installed on the outside of the upper cylinder through multiple sets of upper connecting pipes, all of which are connected to the gas transfer chamber.

[0007] With the above technical solution, after the machine is started, the ore material is transported through the sintering belt. The first fan runs, and air penetrates the sintering belt material layer from top to bottom. The auxiliary fuel valve is opened to introduce the combustion fuel, which is then pressurized by the second fan and sent into the gas transfer chamber through the second combustion pipe. This is conducive to the uniformity of combustion and can adjust the coverage area of ​​the combustion aid according to the sintering belt of different thicknesses, thereby improving the combustion efficiency.

[0008] Furthermore, the adjustment assembly includes multiple connecting rods that are interspersed and movably disposed inside the gas exchange chamber. Each of the multiple connecting rods is interspersed and movably disposed with the upper wall of the upper cylinder, and the upper ends of the multiple connecting rods are fixedly connected with through buckles.

[0009] Through the above technical solution, the linkage rod can be moved up and down on the upper cylinder via the through buckle.

[0010] Furthermore, an annular groove is formed on the inner wall of the upper cylinder, and a lifting sealing ring is slidably installed on the inner side of the annular groove. An annular plate is fixedly connected to the outer surface of the lifting sealing ring. The annular plate is movably disposed on the inner side of the gas transfer chamber, and multiple connecting rods are fixedly connected to the annular plate.

[0011] The above technical solution uses a ring plate to drive the structure in the adjustment component to move within the ring groove, thereby adjusting the distance between the ventilation mesh plate and the sinter combustion zone, ensuring the coverage effect of the combustion-supporting fuel.

[0012] Furthermore, the bottom end of the lifting sealing ring is fixedly connected to multiple ventilation mesh plates, and all of the ventilation mesh plates are connected to the air transfer chamber.

[0013] The above technical solution allows the combustion-supporting gas in the gas conversion chamber to be evenly sprayed out under pressure through the ventilation mesh plate.

[0014] Furthermore, the isolation mesh plate has multiple mesh holes, the isolation mesh plate has a cavity at the bottom inner side of the base, the outer edge of the mesh cover has multiple openings, all of which match the connecting rod, the ventilation mesh plate has a lower cylindrical plate, and the ventilation mesh plate is made of a high melting point material.

[0015] The above-described solution of this utility model has at least the following beneficial effects: 1. This utility model connects an external pipe to an interface pipe. When the first blower operates, air penetrates the material layer from top to bottom. The combustion zone moves downward with the airflow, causing the iron ore powder to partially melt and bind. During the process, combustion-supporting fuel can be introduced through the fuel-supporting valve, and then blown into the second combustion-supporting pipe by the second blower under pressure. It is then sent into the gas transfer chamber through the connector, and then evenly sprayed into each ventilation mesh plate. This is beneficial for the uniform delivery of fuel when using a combustion-supporting device for sintered ore, enabling stratified combustion, improving the uniformity of sintered ore, and ensuring the quality of the finished sintered ore product. 2. In this utility model, the connecting rod is suspended on the through buckle by an external hoisting device, thereby adjusting the lifting and lowering movement of the connecting rod. During the process, the ring plate will move, thereby causing the adjusting component to slide and descend in the ring groove, thereby adjusting the interval between the ventilation mesh plate and the sinter combustion zone, ensuring the coverage effect of the combustion-supporting fuel. After the sinter is unloaded from the trolley, it enters the ring cooler or belt cooler. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a side view structural diagram of the present invention.

[0017] In the diagram: 1. Base; 2. First combustion-supporting pipe; 3. Upper cylinder; 4. Lower cylinder; 5. Communicator; 7. First blower; 8. Interface pipe; 9. Fuel-supporting valve; 10. Second blower; 11. Second combustion-supporting pipe; 12. Opening; 13. Connecting rod; 14. Connecting buckle; 15. Mesh cover; 16. Ventilation mesh plate; 17. Lifting sealing ring; 18. Ring groove; 19. Ring plate; 20. Gas transfer chamber; 21. Isolation mesh plate; 23. Adjustment component; 24. Sintering belt. Detailed Implementation

[0018] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0019] like Figures 1 to 5 As shown, an embodiment of this utility model provides a sinter combustion aid device, comprising: Base 1; The lower cylinder 4 is fixedly installed on the upper end of the base 1, and an isolation mesh plate 21 is installed on the inner side of the base 1. The upper cylinder 3 is fixedly installed at the upper end of the lower cylinder 4. Multiple sets of communicating vessels 5 are interlocked around the outer surface of the lower cylinder 4. Two second blowers 10 are fixedly installed on the outer surface of the upper cylinder 3. A fuel-assisted valve 9 is fixedly installed on the outer surface of one of the second blowers 10. A gas-turning chamber 20 is opened inside the upper cylinder 3. An adjustment component 23 is provided on the inner side of the gas-turning chamber 20. A sintering belt 24 is interlocked in the middle of the lower cylinder 4. The first fan 7 is fixedly installed in a ring on the outer surface of the base 1, and the outer surfaces of multiple first fans 7 are fixedly connected with interface pipes 8. The first combustion-supporting pipe 2 is fixedly installed on the outside of the base 1 and the lower cylinder 4 through multiple sets of lower connecting pipes 5. All of the multiple sets of lower connecting pipes 5 are connected to the base 1. The second combustion-supporting pipe 11 is installed on the outside of the upper cylinder 3 through multiple sets of upper connecting pipes 5. All of the upper sets of connecting pipes 5 are connected to the gas transfer chamber 20. It is suspended on the connecting buckle 14 by external hoisting equipment, thereby adjusting the lifting and lowering movement of the connecting rod 13. During the process, it will drive the ring plate 19 to move, thereby driving the adjusting component 23 to slide down in the ring groove 18, thereby adjusting the interval distance between the ventilation mesh plate 16 and the sintered ore combustion zone, ensuring the coverage effect of the combustion-supporting fuel.

[0020] like Figure 1 , 2 as well as Figure 4 As shown, the adjustment assembly 23 includes multiple connecting rods 13 that are interlaced and movably disposed inside the gas exchange chamber 20. Each connecting rod 13 is interlaced and movably disposed with the upper wall of the upper cylinder 3. A through buckle 14 is fixedly connected to the upper end of each connecting rod 13. An annular groove 18 is formed on the inner wall of the upper cylinder 3. A lifting sealing ring 17 is slidably installed on the inner side of the annular groove 18. An annular plate 19 is fixedly connected to the outer surface of the lifting sealing ring 17. The annular plate 19 is movably disposed inside the gas exchange chamber 20. Each connecting rod 13 is fixedly connected to the annular plate 19. Multiple ventilation mesh plates 16 are fixedly connected to the bottom end of the lifting sealing ring 17. Each ventilation mesh plate 16 communicates with the gas exchange chamber 20. An isolation mesh plate 21 is opened on... The device has multiple mesh openings. The isolation mesh plate 21 is located at the bottom inner side of the base 1 and has a cavity. The outer edge of the mesh cover 15 has multiple openings 12, which are matched with the connecting rod 13. The ventilation mesh plate 16 is equipped with a lower cylinder 4. The ventilation mesh plate 16 is made of high melting point material. Combustion fuel is introduced through the fuel-supporting valve 9, and then blown into the second combustion-supporting pipe 11 by the second blower 10. It is then sent into the gas transfer chamber 20 through the connector 5, and then evenly sprayed into each ventilation mesh plate 16. This is beneficial for the uniform delivery of fuel when using a sinter combustion-supporting device, which can achieve layered combustion, improve the uniformity of sinter, and ensure the quality of the finished sinter.

[0021] The working principle of this utility model embodiment is as follows: Iron ore powder, flux, and fuel are mixed in proportion by external personnel, with an appropriate amount of water added. The mixture is then granulated into small pellets using a cylindrical mixer or granulator to improve air permeability. The mixture is evenly spread on a sintering trolley to form a sintering belt 24. The mixture is conveyed through the sintering belt 24 and connected to an interface pipe 8 via an external pipe. The first blower 7 operates, allowing air to penetrate the material layer from top to bottom. The combustion belt moves downwards with the airflow, reaching a maximum temperature of 1300-1400℃, causing partial melting and bonding of the iron ore powder. During this process, the combustion can be controlled through the auxiliary fuel valve 9. The combustion-supporting fuel is introduced, then pressurized by the second blower 10 and blown into the second combustion-supporting pipe 11. It is then sent into the gas transfer chamber 20 through the connector 5, and then evenly sprayed into each ventilation mesh plate 16. It is suspended on the connecting buckle 14 by external hoisting equipment, thereby adjusting the lifting and lowering movement of the connecting rod 13. During the process, it will drive the ring plate 19 to move, thereby driving the adjustment component 23 to slide and descend in the ring groove 18, thereby adjusting the interval distance between the ventilation mesh plate 16 and the sinter combustion zone, ensuring the coverage effect of the combustion-supporting fuel. After the sinter is unloaded from the trolley, it enters the ring cooler or belt cooler.

[0022] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A combustion aid device for sintered ore, characterized in that, include: Base; The lower cylinder is fixedly installed on the upper end of the base, and an isolation mesh plate is installed on the inner side of the base; The upper cylinder is fixedly installed at the upper end of the lower cylinder. Multiple sets of communicating vessels are interlocked around the outer surface of the lower cylinder. Two second fans are fixedly installed on the outer surface of the upper cylinder. A fuel-aiding valve is fixedly installed on the outer surface of one of the second fans. A gas-turning chamber is opened inside the upper cylinder. An adjustment component is provided on the inner side of the gas-turning chamber. A sintering belt is interlocked in the middle of the lower cylinder. The first fan is fixedly installed in a ring on the outer surface of the base, and the outer surfaces of multiple first fans are fixedly connected with interface pipes. The first combustion-supporting tube is fixedly installed on the outside of the base and the lower cylinder through multiple sets of lower connecting vessels, and all of the multiple sets of lower connecting vessels are connected to the base. The second combustion-supporting pipe is installed on the outside of the upper cylinder through multiple sets of upper connecting pipes, all of which are connected to the gas transfer chamber.

2. The sinter combustion aid device according to claim 1, characterized in that, The adjustment assembly includes multiple connecting rods that are interspersed and movable inside the gas exchange chamber. Each of the multiple connecting rods is interspersed and movable with the upper wall of the upper cylinder, and the upper ends of the multiple connecting rods are fixedly connected with through buckles.

3. The sinter combustion aid device according to claim 2, characterized in that, The inner wall of the upper cylinder is provided with an annular groove, and a lifting sealing ring is slidably installed on the inner side of the annular groove. A ring plate is fixedly connected to the outer surface of the lifting sealing ring. The ring plate is movably disposed on the inner side of the gas transfer chamber, and multiple connecting rods are fixedly connected to the ring plate.

4. The sinter combustion aid device according to claim 3, characterized in that, The bottom end of the lifting sealing ring is fixedly connected to multiple ventilation mesh plates, and all of the ventilation mesh plates are connected to the air transfer chamber.

5. A sinter combustion aid device according to claim 1, characterized in that, The isolation mesh plate has multiple mesh holes, and the isolation mesh plate has a cavity at the bottom inner side of the base.

6. A sinter combustion aid device according to claim 4, characterized in that, The ventilation mesh plate is provided with a lower cylinder, and the ventilation mesh plate is made of a high melting point material.

Images