Converter steelmaking waste heat boiler

Abstract

The utility model discloses a converter steelmaking waste heat boiler belongs to waste heat recovery boiler technical field, and its technical key points include horizontal furnace body, one end of horizontal furnace body is connected with the smoke pipe of going in, and the inner wall fixed connection of smoke pipe has the support ring, the outside of support ring is provided with the disc that is suitable for the smoke pipe, four fan -shaped through -holes that are annular array distribution are passed through on the disc, and the fixed connection of fan -shaped through -hole has the fan -shaped filter plate that is suitable, still is seted up in the cross cavity of disc. The utility model discloses through set up quick assembly and the cooperation of slot, when dismouting the disc, only need to rotate the rotating handle in quick assembly, through the structure mutual cooperation in quick assembly, can make each inserting rod be inserted into the corresponding slot simultaneously, or simultaneously separate the corresponding slot, to reach the purpose of quick assembly and disassembly, simplify the disassembly step, be favorable to improving the disassembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery boiler technology, specifically a waste heat boiler for converter steelmaking. Background Technology

[0002] Waste heat recovery boilers are boilers that use the residual heat in various waste gases, waste materials or waste liquids and the heat generated after the combustion of combustible substances to heat water to a certain temperature. In the incineration of solid hazardous waste, waste heat boilers are also used to heat the waste gas for reuse in order to save energy.

[0003] For example, Chinese patent CN221881512U discloses a waste heat boiler, including a horizontal furnace body. One side of the horizontal furnace body is connected to a flue gas inlet. The inner wall of the flue gas inlet is provided with a filter structure, which includes a filter plate. Two rectangular plates are uniformly fixedly connected to one side of the filter plate. A screw threaded through one side of each rectangular plate is threaded through it. Circular grooves are formed on the inner wall of the flue gas inlet relative to the two screws. The inner wall of the circular grooves is slidably connected to the screws. The arc surface of the filter plate is slidably connected to the inner wall of the flue gas inlet. A positioning plate is fixedly connected to the inner wall of the flue gas inlet. The positioning plate is located on one side of the filter plate. A sealing gasket is fixedly connected to the side of the positioning plate near the filter plate, and one side of the filter plate abuts against the sealing gasket. This utility model solves the problem that impurities mixed with the combustion exhaust gas enter the horizontal furnace body, and these impurities affect the waste heat recovery of the horizontal furnace body.

[0004] However, in practical applications, the installation and disassembly process of filter plates in existing waste heat boilers is relatively cumbersome. Each time the filter plates are cleaned or replaced, the screws on both sides need to be rotated to align with the circular groove and then slid in. This process may take a certain amount of time and effort. Moreover, although the sealing gaskets in existing waste heat boilers improve the sealing between the flue gas inlet and the filter plates, they may lose their sealing effect due to wear or aging after long-term use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a waste heat boiler for converter steelmaking. This technical solution solves the problem mentioned in the background art that the installation and disassembly process of filter plates in existing waste heat boilers is relatively cumbersome. Each time the filter plates are cleaned or replaced, it is necessary to rotate the screws on both sides to align them with the circular groove and slide them in. This process may take a certain amount of time and effort. Moreover, although the sealing gasket in the existing waste heat boiler improves the sealing performance between the flue gas inlet and the filter plate, the sealing gasket may lose its sealing effect due to wear or aging after long-term use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A waste heat boiler for converter steelmaking includes a horizontal furnace body. One end of the horizontal furnace body is conductively connected to a flue gas inlet pipe. A support ring is fixedly connected to the inner wall of the flue gas inlet pipe. A disc adapted to the flue gas inlet pipe is arranged on the outer side of the support ring. Four fan-shaped through holes arranged in a circular array are passed through the disc. Matching fan-shaped filter plates are fixedly connected to the fan-shaped through holes. A cross-shaped cavity is also formed within the disc, and a quick-assembly assembly is arranged within the cross-shaped cavity. The inner wall of the flue gas inlet pipe has a section that cooperates with the quick-assembly assembly. The disc has a slot, a sealing ring detachably connected to the side of the disc near the support ring, a mounting bracket detachably connected to the outer side of the disc, a motor fixedly connected to the center of the mounting bracket on the side away from the disc, a protective shell fixedly connected to the mounting bracket on the outside of the motor, a rotating plate fixedly connected to the output end of the motor via a connecting rod, the connecting rod being rotatably connected to the mounting bracket, a cleaning brush adapted to the fan-shaped filter plate detachably connected to the side of the rotating plate near the disc, and a collection hopper also provided on the outer side of the disc.

[0008] Preferably, a guide block is fixedly connected to the outer ring of the disc, and a guide groove adapted to the guide block is opened at the outer end of the smoke inlet pipe in the horizontal direction.

[0009] Preferably, a plurality of first screws arranged in a circular array are passed between the sealing ring and the disc, and the sealing ring is also provided with mounting grooves corresponding to each of the first screws, with the first screws set in the corresponding mounting grooves.

[0010] Preferably, both ends of the mounting bracket are fixedly connected to mounting plates, and two second screws are inserted between the mounting plates and the disc.

[0011] Preferably, two screws are fixedly connected to the side of the rotating plate near the cleaning brush, and two mounting holes adapted to the two screws are passed through the brush plate of the cleaning brush. Nuts are threaded onto the screws, and the nuts are located on the side of the cleaning brush away from the rotating plate.

[0012] Preferably, the quick-assembly assembly includes four fixed sleeves fixedly connected to the cross cavity and arranged in a circular array. Rotating rods are rotatably connected within each fixed sleeve. The ends of the four rotating rods that are far apart from each other are integrally formed with threaded rods. Insert rods adapted to slots are threaded onto the threaded rods. The insert rods are slidably disposed within the cross cavity. First bevel gears are fixedly connected to the ends of the four rotating rods that are close to each other. A rotating shaft is rotatably connected to the middle sidewall of the cross cavity. A second bevel gear is fixedly connected to one end of the rotating shaft. All four first bevel gears mesh with the second bevel gears. The other end of the rotating shaft extends to the outside of the disc and is fixedly connected to a rotating handle. A slider is fixedly connected to the insert rod. A groove adapted to the slider is formed within the cross cavity. The slider is slidably disposed within the adapted groove.

[0013] Compared with the prior art, this utility model provides a waste heat boiler for converter steelmaking, which has the following beneficial effects:

[0014] 1. This utility model, through the coordinated use of quick-release components and slots, allows for quick disassembly and assembly of the disc by simply rotating the handle in the quick-release component. The interlocking structures within the quick-release component enable each rod to be simultaneously inserted into or disengaged from its corresponding slot, thereby achieving quick disassembly and assembly, simplifying the disassembly and assembly process, and improving disassembly and assembly efficiency.

[0015] 2. The sealing ring in this utility model is detachably connected to the disc by several first screws, which makes it easy to replace the sealing ring when it is worn or aged after long-term use, thereby ensuring the sealing effect of the sealing ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the smoke inlet pipe in this utility model;

[0018] Figure 3 In this utility model Figure 2 A magnified structural diagram at point A;

[0019] Figure 4 This is a schematic diagram of the structure of the guide block and guide groove in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the disc in this utility model;

[0021] Figure 6 This is a schematic diagram of the cleaning brush in this utility model;

[0022] Figure 7This is a schematic diagram of the quick-assembly and disassembly component in this utility model;

[0023] Figure 8 This is a schematic diagram of the sealing ring in this utility model.

[0024] The following are the labels in the diagram: 1. Horizontal furnace body; 2. Smoke inlet pipe; 3. Support ring; 4. Disc; 5. Fan-shaped filter plate; 6. Quick-release assembly; 601. Fixing sleeve; 602. Rotating rod; 603. Threaded rod; 604. Insert rod; 605. First bevel gear; 606. Second bevel gear; 607. Rotating shaft; 608. Rotating handle; 609. Sliding block; 610. Slide groove; 7. Slot; 8. Sealing ring; 9. Mounting bracket; 10. Motor; 11. Rotating plate; 12. Cleaning brush; 13. Collection hopper; 14. Guide block; 15. Guide groove; 16. Mounting groove; 17. First screw; 18. Mounting plate; 19. Second screw; 20. Screw; 21. Mounting hole; 22. Nut. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] Example 1

[0027] Please refer to Figures 1 to 8 As shown, a waste heat boiler for converter steelmaking includes a horizontal furnace body 1. One end of the horizontal furnace body 1 is connected to a flue gas inlet pipe 2. A support ring 3 is fixedly connected to the inner wall of the flue gas inlet pipe 2. A disc 4 adapted to the flue gas inlet pipe 2 is provided on the outer side of the support ring 3. Four fan-shaped through holes arranged in a circular array are passed through the disc 4. Matching fan-shaped filter plates 5 are fixedly connected in the fan-shaped through holes. A cross cavity is also opened in the disc 4. A quick-disassembly assembly 6 is provided in the cross cavity. A slot that mates with the quick-disassembly assembly 6 is opened on the inner wall of the flue gas inlet pipe 2. 7. A sealing ring 8 is detachably connected to the side of the disc 4 near the support ring 3. A mounting bracket 9 is detachably connected to the outer side of the disc 4. A motor 10 is fixedly connected to the middle of the side of the mounting bracket 9 away from the disc 4. A protective shell is provided on the outside of the motor 10 and fixedly connected to the mounting bracket 9. A rotating plate 11 is fixedly connected to the output end of the motor 10 through a connecting rod. The connecting rod is rotatably connected to the mounting bracket 9. A cleaning brush 12 adapted to the fan-shaped filter plate 5 is detachably connected to the side of the rotating plate 11 near the disc 4. A collection hopper 13 is also provided on the outer side of the disc 4.

[0028] Those skilled in the art will understand that, by setting up the quick-release assembly 6 and the slot 7 for coordinated use, when disassembling or assembling the disc 4, it is only necessary to rotate the rotating handle 608 in the quick-release assembly 6. Through the mutual cooperation of the internal structure of the quick-release assembly 6, each rod 604 can be simultaneously inserted into the corresponding slot 7 or simultaneously disengaged from the corresponding slot 7, thereby achieving the purpose of quick disassembly and assembly, simplifying the disassembly and assembly steps, and improving disassembly and assembly efficiency.

[0029] In addition, the protective shell is used to protect the motor 10, and the cleaning brush 12 is used to clean the impurities on the four fan-shaped filter plates 5. The four fan-shaped filter plates 5 are used to filter the impurities in the exhaust gas entering the flue pipe 2.

[0030] Furthermore, when cleaning the sector-shaped filter plate 5, the motor 10 is started to drive the connecting rod to rotate, thereby driving the rotating plate 11 and the cleaning brush 12 to rotate. The rotating cleaning brush 12 will clean the impurities on the sector-shaped filter plate 5, and the cleaned impurities will fall into the collection hopper 13 for collection.

[0031] Example 2

[0032] Furthermore, a guide block 14 is fixedly connected to the outer ring of the disc 4, and a guide groove 15 adapted to the guide block 14 is opened at the outer end of the smoke inlet pipe 2 in the horizontal direction.

[0033] Those skilled in the art will understand that by setting guide blocks 14 and guide grooves 15, it is convenient to guide the disc 4 when it is installed in the smoke inlet pipe 2. Two guide blocks 14 and two guide grooves 15 are provided. When the disc 4 is installed in the smoke inlet pipe 2, the two guide blocks 14 are aligned with the two guide grooves 15 respectively. Then, the two guide blocks 14 are inserted into the two guide grooves 15 respectively, so that the disc 4 is installed in the smoke inlet pipe 2. When the sealing ring 8 on the inner side of the disc 4 is tightly fitted with the support ring 3, the four insertion rods 604 will be aligned with the four slots 7 respectively.

[0034] Example 3

[0035] Furthermore, a number of first screws 17 arranged in a ring array are inserted between the sealing ring 8 and the disc 4. The sealing ring 8 is also provided with mounting grooves 16 corresponding to each of the first screws 17, and the first screws 17 are set in the corresponding mounting grooves 16.

[0036] Those skilled in the art will understand that the sealing ring 8 in this utility model is detachably connected to the disc 4 by a number of first screws 17, so that the sealing ring 8 can be easily replaced when it is worn or aged after long-term use, thereby ensuring the sealing effect of the sealing ring 8.

[0037] Example 4

[0038] Furthermore, mounting plates 18 are fixedly connected to both ends of the mounting bracket 9, and two second screws 19 are inserted between the mounting plates 18 and the disc 4.

[0039] Those skilled in the art will understand that the mounting bracket 9 is detachably connected to the disc 4 through the cooperation of the mounting plate 18 and the second screw 19. The detachable connection of the mounting bracket 9 facilitates the separate cleaning of the disc 4 and the four sector filter plates 5, so that the mounting bracket 9 will not get in the way when cleaning the disc 4 and the four sector filter plates 5.

[0040] Example 5

[0041] Furthermore, two screws 20 are fixedly connected to the side of the rotating plate 11 near the cleaning brush 12. Two mounting holes 21 that are adapted to the two screws 20 are passed through the brush plate position of the cleaning brush 12. Nuts 22 are threadedly connected to the screws 20. The nuts 22 are located on the side of the cleaning brush 12 away from the rotating plate 11.

[0042] Those skilled in the art will understand that the cleaning brush 12 is detachably connected to the rotating plate 11 through the engagement of the screw 20, the mounting hole 21 and the nut 22. The detachable connection of the cleaning brush 12 makes it easy to remove the cleaning brush 12 for cleaning or replacement after long-term use.

[0043] Example 6

[0044] Furthermore, the quick-release assembly 6 includes four fixed sleeves 601 fixedly connected to the cross cavity and arranged in a circular array. Rotating rods 602 are rotatably connected inside the fixed sleeves 601. The ends of the four rotating rods 602 that are far apart from each other are integrally formed with threaded rods 603. Insert rods 604 that are adapted to slots 7 are threadedly connected to the threaded rods 603. Insert rods 604 are slidably disposed in the cross cavity. The ends of the four rotating rods 602 that are close to each other are fixedly connected with first bevel gears 605. A rotating shaft 607 is rotatably connected to the middle side wall of the cross cavity. A second bevel gear 606 is fixedly connected to one end of the rotating shaft 607. The four first bevel gears 605 are all meshed with the second bevel gears 606. The other end of the rotating shaft 607 extends to the outside of the disc 4 and is fixedly connected with a rotating handle 608. A slider 609 is fixedly connected to the insert rod 604. A sliding groove 610 adapted to the slider 609 is opened in the cross cavity. The slider 609 is slidably disposed in the adapted sliding groove 610.

[0045] Those skilled in the art will understand that, when using the quick-release assembly 6, the disc 4 is first installed inside the smoke inlet pipe 2, while the two guide blocks 14 are respectively inserted into the two guide slots 15. Then, the sealing ring 8 on the inner side of the disc 4 is tightly fitted with the support ring 3. At this time, the four insert rods 604 will be aligned with the four slots 7 respectively. Then, the handle 608 is rotated, which drives the second bevel gear 606 to rotate through the rotating shaft 607. The rotation of the second bevel gear 606 will simultaneously drive the four first bevel gears 605 to rotate. When the first bevel gears 605 rotate... When rotating, the rotating rod 602 and the threaded rod 603 will rotate together, causing the insertion rod 604 to slide out of the cross cavity and then be inserted into the slot 7. The four insertion rods 604 will be inserted into the four slots 7 simultaneously, thereby limiting and fixing the disc 4, thus completing the quick installation of the disc 4. When removing the disc 4, simply rotate the rotating handle 608 in the opposite direction. Through the cooperation between the internal components, the four insertion rods 604 can be driven to simultaneously disengage from the slots 7 and then retract into the cross cavity, after which the disc 4 can be removed.

[0046] In addition, the slider 609 and the groove 610 are used to limit the insertion rod 604, so that when the threaded rod 603 rotates, it can drive the insertion rod 604 to move effectively in the cross cavity, and prevent the threaded rod 603 from rotating and causing the insertion rod 604 to rotate together, which would prevent the insertion rod 604 from moving in the cross cavity.

[0047] The working principle and usage procedure of this device are as follows: When installing the disc 4, first install the disc 4 inside the smoke inlet pipe 2, and simultaneously insert the two guide blocks 14 into the two guide grooves 15 respectively. Then, ensure that the sealing ring 8 on the inner side of the disc 4 is tightly fitted with the support ring 3. At this time, the four insertion rods 604 will be aligned with the four slots 7 respectively. Then, rotate the handle 608, which drives the second bevel gear 606 to rotate through the rotating shaft 607. The rotation of the second bevel gear 606 will simultaneously drive the four first bevel gears 605 to rotate. When the first bevel gears 605 rotate... When in motion, the rotating rod 602 and the threaded rod 603 rotate together, causing the insert rod 604 to slide out of the cross cavity and then be inserted into the slot 7. The four insert rods 604 will be inserted into the four slots 7 simultaneously, thereby limiting and fixing the disc 4, thus completing the quick installation of the disc 4. When removing the disc 4, simply rotate the rotating handle 608 in the opposite direction. Through the cooperation between the internal components, the four insert rods 604 can be driven to simultaneously disengage from the slots 7 and then retract into the cross cavity, after which the disc 4 can be removed.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat boiler for converter steelmaking, comprising a horizontal furnace body (1), characterized in that, One end of the horizontal furnace body (1) is connected to a flue gas inlet pipe (2). A support ring (3) is fixedly connected to the inner wall of the flue gas inlet pipe (2). A disc (4) adapted to the flue gas inlet pipe (2) is provided on the outer side of the support ring (3). Four fan-shaped through holes arranged in a ring array are passed through the disc (4). A matching fan-shaped filter plate (5) is fixedly connected in the fan-shaped through holes. A cross cavity is also provided in the disc (4). A quick-release assembly (6) is provided in the cross cavity. A slot (7) that mates with the quick-release assembly (6) is provided on the inner wall of the flue gas inlet pipe (2). The disc (4) is close to the support ring (3). A sealing ring (8) is detachably connected to one side of the disc (4). A mounting bracket (9) is detachably connected to the outer side of the disc (4). A motor (10) is fixedly connected to the middle of the side of the mounting bracket (9) away from the disc (4). A protective shell is provided on the outside of the motor (10) and fixedly connected to the mounting bracket (9). A rotating plate (11) is fixedly connected to the output end of the motor (10) through a connecting rod. The connecting rod is rotatably connected to the mounting bracket (9). A cleaning brush (12) adapted to the fan-shaped filter plate (5) is detachably connected to the side of the rotating plate (11) close to the disc (4). A collection hopper (13) is also provided on the outer side of the disc (4).

2. The waste heat boiler for converter steelmaking according to claim 1, characterized in that, The outer ring of the disc (4) is fixedly connected to a guide block (14), and the outer end of the smoke inlet pipe (2) is provided with a guide groove (15) that matches the guide block (14) in the horizontal direction.

3. A converter steelmaking waste heat boiler according to claim 1, characterized in that, A plurality of first screws (17) arranged in a ring array are provided between the sealing ring (8) and the disc (4). The sealing ring (8) is also provided with mounting grooves (16) corresponding to each of the first screws (17). The first screws (17) are set in the corresponding mounting grooves (16).

4. A converter steelmaking waste heat boiler according to claim 1, characterized in that, The mounting bracket (9) is fixedly connected to mounting plates (18) at both ends, and two second screws (19) are inserted between the mounting plate (18) and the disc (4).

5. A waste heat boiler for converter steelmaking according to claim 1, characterized in that, Two screws (20) are fixedly connected to the side of the rotating plate (11) near the cleaning brush (12). The brush plate of the cleaning brush (12) has two mounting holes (21) that are adapted to the two screws (20). A nut (22) is threaded onto the screw (20). The nut (22) is located on the side of the cleaning brush (12) away from the rotating plate (11).

6. A waste heat boiler for converter steelmaking according to claim 1, characterized in that, The quick-release assembly (6) includes four fixed sleeves (601) fixedly connected to the cross cavity and arranged in a circular array. Rotating rods (602) are rotatably connected inside each fixed sleeve (601). The ends of the four rotating rods (602) that are far apart from each other are integrally formed with threaded rods (603). Insert rods (604) that are adapted to the slots (7) are threaded onto the threaded rods (603). The insert rods (604) are slidably disposed within the cross cavity. The ends of the four rotating rods (602) that are close to each other are fixedly connected with first bevel gears (605). The cross cavity... A rotating shaft (607) is rotatably connected to the middle side wall of the body. One end of the rotating shaft (607) is fixedly connected to a second bevel gear (606). All four first bevel gears (605) are meshed with the second bevel gear (606). The other end of the rotating shaft (607) extends to the outside of the disc (4) and is fixedly connected to a rotating handle (608). A slider (609) is fixedly connected to the insert rod (604). A groove (610) adapted to the slider (609) is opened in the cross cavity. The slider (609) is slidably disposed in the groove (610).

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