Novel uniform air supply cooling device for sinter

Abstract

The utility model discloses a novel uniform air supply cooling device for sinter, which comprises a central air ventilation beam, a bottom plate, a tower-shaped air cap, an air supply header pipe, an annular ventilation beam, a dustproof filter screen, an air supply header pipe, an air supply header pipe and an air supply header pipe, the annular ventilation beam is connected with the central air ventilation beam in a welding manner and is not communicated with the central air ventilation beam, and the tower-shaped air cap is formed by combining two double-frustum tower bodies with circular truncated cone structures. The dustproof filter screen is installed in the middle of the air supply header pipe in a penetrating mode. According to the novel uniform air supply cooling device for the sinter, air is supplied to falling sinter in a layered mode through the center tower-shaped air cap, meanwhile, air is supplied to the sinter through the annular ventilation beam according to the area of the bottom plate area, and the sinter evenly falls down through the discharging opening, so that the sinter can evenly fall down in the shaft kiln; and the cooling air can uniformly cool the sinter, the cooling effect on the sinter is further effectively improved, and the supplied air can be filtered by combining the dustproof filter screen which is inserted into the air supply header pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of sinter cooling, in particular to a novel sinter uniform air supply cooling device. Background Technique

[0002] The sintering process is a process in which powdered iron ore, various fluxes and pulverized coal are stirred, granulated, then added to a sintering machine through a feeding system, the pulverized coal is ignited by an ignition furnace, and the sintering reaction is completed by air extraction of a blower, so that the powdered material is transformed into a massive material. The sintered sinter needs to be cooled before being sent to a blast furnace. In this process, the sinter needs to be cooled by an air supply device in a shaft cooler to facilitate the recovery of the waste heat of the sinter and subsequent transportation.

[0003] For example, the publication number CN219607730U discloses a shaft cooler uniform air supply device, which includes a bottom plate, fixed brackets, an outer shell and an inner shell; two fixed brackets are installed on the upper surface of the bottom plate. This shaft cooler uniform air supply device blows air on the falling sinter through the air outlet of the air supply pipe. At the same time, the rotating assembly controls the annular pipe to rotate a certain angle. The rotation of the annular pipe drives the conveying pipe to rotate and drives the air supply pipe to rotate. The cooling space formed by the air supply pipe rotating back and forth at a certain angle is larger, so that the uniform air supply to the sinter can be improved, and thus the cooling effect on the sinter can be effectively guaranteed. In addition, when the rotating assembly rotates, the blades are also driven to rotate. By the rotation of the blades, the falling sinter can be diverted to avoid the concentration of the falling sinter, so that the sinter can fall evenly in the device, and the wind force can cool the sinter evenly, further effectively improving the cooling effect on the sinter.

[0004] However, in the prior art, when supplying air for cooling the sinter, uniform air supply to the sinter cannot be achieved, resulting in a reduction in the cooling effect of the sinter, causing the temperature of the sinter out of the shaft cooler to be too high, the air temperature at the outlet of the shaft cooler to decrease, the high temperature of the sinter out of the shaft cooler affecting the service life of the sinter transportation equipment, and seriously burning out the belt conveyor in severe cases. The decrease in the air temperature at the outlet of the shaft cooler affects the power generation efficiency, and it is also inconvenient to filter the air supplied by the main air supply pipe. For example, the above-listed comparative patent has this problem.

[0005] Therefore, we propose a novel sinter uniform air supply cooling device to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a novel sintered ore uniform air supply and cooling device to solve the problems in the prior art as mentioned in the above background technology. When supplying air for cooling the sintered ore in the prior art, uniform air supply for the sintered ore cannot be achieved, resulting in a reduction in the cooling effect of the sintered ore, causing the temperature of the sintered ore leaving the vertical cooling kiln to be too high, the air temperature at the outlet of the vertical cooling kiln to decrease, the high temperature of the sintered ore leaving the vertical cooling kiln affecting the service life of the sintered ore transportation equipment, and seriously burning out the belt conveyor in severe cases. The decrease in the air temperature at the outlet of the vertical cooling kiln affects the power generation efficiency, and it is also inconvenient to filter the air supplied by the main air supply pipe.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: A novel sintered ore uniform air supply and cooling device, including a central air ventilation beam, a bottom plate, a tower-shaped air cap, and a main air supply pipe;

[0008] Among them, the central air ventilation beams are arranged at equal angles on the lower surface of the bottom plate, and the middle part of the central air ventilation beam is connected to the tower-shaped air cap;

[0009] It also includes:

[0010] An annular ventilation beam, which is welded to the central air ventilation beam and is not connected. Both the annular ventilation beam and the central air ventilation beam are connected to the main air supply pipe through external pipes. Rectangular openings are arranged at equal angles on the side surface of the annular ventilation beam, and a rectangular eaves plate is arranged above the rectangular openings;

[0011] At the same time, a material stop plate is installed above the rectangular eaves plate;

[0012] The tower-shaped air cap is composed of a combination of two double-cone tower bodies in a frustum structure, and multiple layers of circular openings are arranged at equal angles around the double-cone tower bodies. The tower-shaped air cap and the annular ventilation beam supply air together;

[0013] A dust filter screen, which is installed through the middle of the main air supply pipe, and filtering mechanisms are arranged on both the front and rear sides of the upper end of the dust filter screen. The filtering mechanisms drive the dust filter screen to form a detachable structure in the middle of the main air supply pipe.

[0014] Preferably, a plurality of blanking openings are arranged at equal angles at the upper end of the central air ventilation beam.

[0015] Preferably, multiple groups of circular eaves plates are arranged above the circular openings. A strip-shaped opening is arranged on the uppermost circular eaves plate, a conical hopper is arranged below the strip-shaped opening, and a connecting pipe is arranged at the lower end of the conical hopper.

[0016] Preferably, a sealing gasket is arranged in a fitting manner between the upper end of the main air supply pipe and the strip-shaped opening.

[0017] Preferably, the filtering mechanism includes a movable pressing plate hinged to the upper end of the main air supply pipe, a movable rod rotatably connected to the right end of the filtering mechanism, a stop block for limiting, and a limiting plate fixedly connected to the upper end of the main air supply pipe.

[0018] Preferably, the movable pressing plate forms a flipping structure at the upper end of the main air supply pipe, and the movable pressing plate is arranged in a fitting manner with the upper end of the dust-proof filter net. The movable pressing plate is used for pressing and fixing the dust-proof filter net.

[0019] Preferably, the rotation angle range between the movable pressing plate and the movable rod is 0-90°, and a torsion spring is arranged at the connection between the movable pressing plate and the movable rod. A stop block is fixedly connected to the lower end of the movable rod, and the stop block is arranged in a fitting manner with the limiting plate.

[0020] Preferably, the movable rod is inserted into a through groove formed in the middle of the upper end of the limiting plate, and the opening size of the through groove is larger than the width size of the stop block.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this new type of sintered ore uniform air supply cooling device, the sintered ore falling is supplied with air in layers through the central tower-shaped air cap, and at the same time, the annular ventilation beam supplies air to the sintered ore according to the area of the bottom plate region. The sintered ore uniformly falls through the feeding port, so that the sintered ore can uniformly fall in the vertical kiln, and the cooling air can uniformly cool the sintered ore, further effectively improving the cooling effect on the sintered ore. Combined with the dust-proof filter net inserted and installed in the main air supply pipe, the air supplied can be filtered, and through the setting of the filtering mechanism, it is convenient to disassemble and clean the dust-proof filter net, preventing the dust-proof filter net from being blocked during long-term use;

[0022] 1. It is provided with a central air ventilation beam, an annular ventilation beam, and a tower-shaped air cap. Through the setting of the central air ventilation beam, the annular ventilation beam, and the tower-shaped air cap, the sintered ore falling can be supplied with air, and at the same time, the annular ventilation beam supplies air to the sintered ore according to the area of the bottom plate region, so that the cooling air can uniformly cool the sintered ore;

[0023] 2. It is provided with a main air supply pipe and a dust-proof filter net. The dust-proof filter net is inserted and installed in the main air supply pipe. Through the setting of the dust-proof filter net, the air supplied through the main air supply pipe is filtered;

[0024] 3. It is provided with a filtering mechanism. The filtering mechanism includes a movable pressing plate, a movable rod, a stop block, and a limiting plate. Through the setting of the filtering mechanism, it is convenient to disassemble and clean the dust-proof filter net, preventing the dust-proof filter net from being blocked during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional view of the structure of the present utility model;

[0026] Figure 2 This is a schematic diagram of the planar structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the annular ventilation beam of the utility model;

[0028] Figure 4 This is a schematic cross-sectional view of the annular ventilation beam of the utility model;

[0029] Figure 5 This is a schematic diagram of the tower-shaped hood structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the overall structure of the central air ventilation beam, the annular ventilation beam, the air supply main pipe and the dust filter screen of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the utility model in which the main air supply pipe and the dust filter are disassembled;

[0032] Figure 8 For this utility model Figure 6 The enlarged structural diagram at A in the middle;

[0033] Figure 9 This is a schematic diagram of the overall structure of the filter mechanism of the utility model when viewed from above.

[0034] In the figure: 1. central air ventilating beam; 2. bottom plate; 3. annular ventilating beam; 4. discharge port; 5. tower-shaped hood; 6. rectangular opening; 7. rectangular eaves; 8. stop plate; 9. double-cone tower body; 10. circular opening; 11. cone bucket; 12. circular eaves; 13. strip opening; 14. main air supply pipe; 15. dust filter; 16. filter mechanism; 17. movable pressure plate; 18. movable rod; 19. block; 20. limit plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figures 1 - 9 , the utility model provides the following technical solutions.

[0037] Embodiment 1: To solve the problems existing in the prior art that when supplying air for cooling sintered ore, uniform air supply for sintered ore cannot be achieved, resulting in a reduction in the cooling effect of sintered ore, a high temperature of sintered ore leaving the shaft cooler, a decrease in the air temperature at the outlet of the shaft cooler, a high temperature of sintered ore leaving the shaft cooler affecting the service life of sintered ore transportation equipment, and burning out the belt conveyor in severe cases, and a decrease in the air temperature at the outlet of the shaft cooler affecting the power generation efficiency. Therefore, in this embodiment, through the following technical solutions, a new type of sintered ore uniform air supply cooling device is provided, which is provided with a central air ventilation beam 1, a bottom plate 2, an annular ventilation beam 3, a feeding port 4, a tower-shaped air cap 5, a rectangular opening 6, a rectangular eaves plate 7, a material stop plate 8, a double frustum tower body 9, a circular opening 10, a conical hopper 11, a circular eaves plate 12, and a strip-shaped opening 13. The central air ventilation beams 1 are arranged at equal angles on the lower surface of the bottom plate 2. A plurality of feeding ports 4 are opened at equal angles at the upper ends of the central air ventilation beams 1. The middle part of the central air ventilation beam 1 is communicated with the tower-shaped air cap 5. The annular ventilation beam 3 is welded to the central air ventilation beam 1 and is not communicated. Both the annular ventilation beam 3 and the central air ventilation beam 1 are connected to the air supply main pipe 14 through external pipes. Rectangular openings 6 are opened at equal angles on the side surface of the annular ventilation beam 3. A rectangular eaves plate 7 is arranged above the rectangular opening 6. A material stop plate 8 is installed above the rectangular eaves plate 7. The tower-shaped air cap 5 is composed of 2 double frustum tower bodies 9 in a frustum structure. A plurality of layers of circular openings 10 are opened at equal angles around the double frustum tower body 9. The tower-shaped air cap 5 and the annular ventilation beam 3 supply air together. A plurality of groups of circular eaves plates 12 are arranged above the circular opening 10. A strip-shaped opening 13 is opened on the uppermost circular eaves plate 12. A conical hopper 11 is arranged below the strip-shaped opening 13. A connecting pipe is arranged at the lower end of the conical hopper 11, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown. The sintered ore is dropped from above the tower-shaped air cap 5, and then the air supply main pipe 14 supplies air to the tower-shaped air cap 5 and the annular ventilation beam 3 respectively. The tower-shaped air cap 5 blows the falling sintered ore through the circular openings 10 and the strip-shaped opening 13, and the annular ventilation beam 3 blows the falling sintered ore through the rectangular openings 6, so as to achieve the uniformity of air supply in the entire cross-section of the shaft cooler.

[0038] Embodiment 2: In the existing new sintered ore uniform air supply cooling device, it is inconvenient to filter the air supplied by the main air supply pipe 14. Therefore, by setting the main air supply pipe 14, the dust-proof filter screen 15 and the filtering mechanism 16, the dust-proof filter screen 15 is installed through the middle of the main air supply pipe 14, and filtering mechanisms 16 are arranged on both the front and rear sides of the upper end of the dust-proof filter screen 15. A sealing gasket is arranged in a fitting manner between the upper end of the main air supply pipe 14 and the strip-shaped opening 13. The filtering mechanism 16 includes a movable pressing plate 17 hinge-connected to the upper end of the main air supply pipe 14, a movable rod 18 rotatably connected to the right end of the filtering mechanism 16, a stop block 19 for limiting, and a limiting plate 20 fixedly connected to the upper end of the main air supply pipe 14. The movable pressing plate 17 forms a flipping structure at the upper end of the main air supply pipe 14, and the movable pressing plate 17 is in a fitting arrangement with the upper end of the dust-proof filter screen 15. The movable pressing plate 17 is used to press and fix the dust-proof filter screen 15. The rotation angle range between the movable pressing plate 17 and the movable rod 18 is 0 - 90°, and a torsion spring is arranged at the connection between the movable pressing plate 17 and the movable rod 18. A stop block 19 is fixedly connected to the lower end of the movable rod 18, and the stop block 19 is in a fitting arrangement with the limiting plate 20. The movable rod 18 is inserted into a through groove opened in the middle of the upper end of the limiting plate 20. The opening size of the through groove is larger than the width size of the stop block 19, as Figure 6 , Figure 7 , Figure 8 and Figure 9 shown. Through the setting of the dust-proof filter screen 15, the air supplied by the main air supply pipe 14 can be filtered. Moreover, when too much dust adheres to the dust-proof filter screen 15, by rotating the movable rod 18 to 90°, at this time, the movable rod 18 rotates at the right end of the movable pressing plate 17, and the torsion spring at the connection between the movable rod 18 and the movable rod 18 undergoes elastic deformation. The movable rod 18 drives the stop block 19 to rotate, and then the movable pressing plate 17 is flipped upward. The movable pressing plate 17 rotates at the upper end of the main air supply pipe 14, and the stop block 19 moves out of the opening in the middle of the limiting plate 20. The movable pressing plate 17 is separated from the dust-proof filter screen 15, thereby releasing the limit between the dust-proof filter screen 15 and the main air supply pipe 14. Then, the dust-proof filter screen 15 is removed from the main air supply pipe 14, so as to facilitate the disassembly, cleaning and replacement of the dust-proof filter screen 15, and prevent the dust-proof filter screen 15 from being blocked during long-term use.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel sintered ore uniform air supply and cooling device, comprising a central air ventilation beam (1), a bottom plate (2), a tower-shaped air cap (5) and a main air supply pipe (14); Among them, The central air ventilation beam (1) is arranged at equal angles on the lower surface of the bottom plate (2), and the middle part of the central air ventilation beam (1) is communicated with the tower-shaped air cap (5); It is characterized in that it further includes: An annular ventilation beam (3), which is welded to the central air ventilation beam (1) and not communicated. Both the annular ventilation beam (3) and the central air ventilation beam (1) are connected to the main air supply pipe (14) through external pipes. Rectangular openings (6) are arranged at equal angles on the side surface of the annular ventilation beam (3), and a rectangular eave plate (7) is arranged above the rectangular openings (6); At the same time, a material stop plate (8) is installed above the rectangular eave plate (7); The tower-shaped air cap (5) is composed of two double-cone tower bodies (9) in a frustum structure, and multiple layers of circular openings (10) are arranged at equal angles around the double-cone tower bodies (9). The tower-shaped air cap (5) and the annular ventilation beam (3) supply air together; A dust-proof filter net (15), which is installed through the middle part of the main air supply pipe (14). Filter mechanisms (16) are arranged on both the front and rear sides of the upper end of the dust-proof filter net (15), and the filter mechanisms (16) drive the dust-proof filter net (15) to form a disassembly structure in the middle part of the main air supply pipe (14).

2. The novel sintered ore uniform air supply and cooling device according to claim 1, characterized in that: A plurality of material discharge openings (4) are arranged at equal angles at the upper end of the central air ventilation beam (1).

3. A novel sintered ore uniform air supply cooling device according to claim 1, characterized in that: Multiple groups of circular eave plates (12) are arranged above the circular openings (10). A strip-shaped opening (13) is opened on the uppermost circular eave plate (12). A conical hopper (11) is arranged below the strip-shaped opening (13), and a connecting pipe is arranged at the lower end of the conical hopper (11).

4. A novel sintered ore uniform air supply cooling device according to claim 1, characterized in that: A sealing gasket is arranged in a fitting manner between the upper end of the main air supply pipe (14) and the strip-shaped opening (13).

5. A novel sintered ore uniform air supply and cooling device according to claim 1, characterized in that: The filter mechanism (16) includes a movable pressing plate (17) hinged to the upper end of the main air supply pipe (14), a movable rod (18) rotatably connected to the right end of the filter mechanism (16), a stopper (19) for limiting, and a limiting plate (20) fixedly connected to the upper end of the main air supply pipe (14).

6. A novel sintered ore uniform air supply and cooling device according to claim 5, characterized in that: The movable pressing plate (17) forms a flipping structure at the upper end of the main air supply pipe (14), and the movable pressing plate (17) is in a fitting setting with the upper end of the dust-proof filter net (15). The movable pressing plate (17) is used to press and fix the dust-proof filter net (15).

7. A novel sintered ore uniform air supply and cooling device according to claim 6, characterized in that: The rotation angle range between the movable pressing plate (17) and the movable rod (18) is 0-90°. A torsion spring is arranged at the connection between the movable pressing plate (17) and the movable rod (18). A stopper (19) is fixedly connected to the lower end of the movable rod (18), and the stopper (19) is in a fitting setting with the limiting plate (20).

8. A novel sintered ore uniform air supply and cooling device according to claim 7, characterized in that: The movable rod (18) is inserted into a through groove opened in the middle of the upper end of the limiting plate (20), and the opening size of the through groove is larger than the width size of the stopper (19).

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