Waste steel recycling and preheating treatment device

Abstract

The utility model relates to the technical field of preheating treatment devices, in particular to a waste steel recycling and preheating treatment device which is characterized in that a preheating box is arranged on one side of the outer surface of a steelmaking furnace, a box cover is mounted at the top end of the preheating box, a feeding hopper is fixedly mounted at the top end of the box cover, and a supporting plate is fixedly mounted on one side of the outer surface of the preheating box; a conveying pipe is fixedly installed on one side of the outer surface of the preheating box, a fan and a fixing plate are installed on the outer surface of the conveying pipe, a feeding pipe is fixedly installed at the bottom end of the preheating box, a containing frame is fixedly installed on the inner surface of the preheating box, and a baffle is installed on one side of the outer surface of the containing frame. A connecting plate is installed on one side of the outer surface of the fixing plate, and a filter screen is fixedly installed on one side of the outer surface of the connecting plate, in the preheating treatment device, the sliding rods are arranged on the preheating treatment device, convenience is provided for replacement of the filter screen, and the use cost of the preheating treatment device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of preheating treatment devices, in particular to a scrap steel recovery preheating treatment device. Background Art

[0002] Scrap steel preheating refers to the process of heating the scrap steel before it is reused or smelted. This process aims to increase the temperature of the scrap steel to a certain degree of heating in order to improve its physical properties, reduce impurities adhering to the surface, increase melting efficiency, or make it easier to process or enter the smelting process. At this time, the preheating treatment device can be used to preheat the scrap steel.

[0003] Publication No. CN216205360U discloses a scrap steel recovery and preheating treatment device, which relates to the technical field of preheating treatment devices, and comprises a bottom plate, a steelmaking furnace arranged on one side of the top surface of the bottom plate, and a preheating box arranged on the other side of the top surface of the bottom plate, an air duct is arranged on the top of the steelmaking furnace, a filtering device is arranged on the outer end of the air duct, a fan is arranged on the air outlet end of the filtering device, a three-way connector is arranged on the outer end of the short tube, an air inlet pipe is arranged on the inner side of the three-way connector, a feed hopper is arranged at the opening at the top of the feed port, a sealing mechanism is arranged at the opening at the bottom of the feed port, and a supporting mechanism for supporting the scrap steel is arranged at the bottom of the preheating box. Although the device facilitates preheating of the scrap steel in the middle by using the air inlet pipe and the air inlet hole B, and facilitates preheating of the scrap steel at the bottom by using the air guide groove and the air inlet hole A, and facilitates improving the efficiency of preheating the scrap steel by simultaneously preheating the scrap steel in the middle and at the bottom, thereby further improving the efficiency of steelmaking, the filtering equipment of the device is installed in an integrated manner. When the filter screen becomes clogged and needs to be replaced, the filtering equipment can only be dismantled as a whole for replacement, which increases the use cost of the preheating treatment device and is inconvenient for replacing the filter screen, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a scrap steel recovery preheating treatment device, a preheating box is arranged on one side of the outer surface of the steelmaking furnace, a box cover is installed on the top of the preheating box, a feeding hopper is fixedly installed on the top of the box cover, a support plate is fixedly installed on one side of the outer surface of the preheating box, a conveying pipe is fixedly installed on one side of the outer surface of the preheating box, a fan and a fixed plate are installed on the outer surface of the conveying pipe, a feeding pipe is fixedly installed on the bottom end of the preheating box, a placing frame is fixedly installed on the inner surface of the preheating box, a baffle is installed on one side of the outer surface of the placing frame, a connecting plate is installed on one side of the outer surface of the fixing plate, a filter screen is fixedly installed on one side of the outer surface of the connecting plate, a receiving groove is opened on the top of the connecting plate, a fixing block is fixedly installed on one end of the inner surface of the receiving groove, a spring is fixedly installed on one end of the outer surface of the fixing block, and a sliding rod is fixedly installed on one end of the outer surface of the spring.

[0006] Preferably, a slide groove is provided on one side of the outer surface of the preheating box and the placement frame, and a baffle is slidably connected to the inner side of the slide groove. Here, the slide groove is used to limit the moving path of the baffle.

[0007] Preferably, a rotating block is fixedly mounted on one side of the outer surface of the preheating box, whereby the baffle can be limited by the rotating block.

[0008] Preferably, a moving groove is provided on one side of the outer surface of the fixing plate, and a filter screen is slidably connected to the inner side of the moving groove. Here, the moving groove is used to conveniently limit the moving path of the filter screen.

[0009] Preferably, a limiting groove is provided on the top of the fixing plate, and the sliding rod can be limited by the limiting groove.

[0010] Preferably, both sides of the outer surface of the preheating box and the box cover are provided with fixing grooves, and the inner surface of the fixing groove is slidably connected with an insertion rod. Here, the fixing groove facilitates the insertion of the insertion rod.

[0011] Preferably, a handle is fixedly mounted on one end of the outer surface of the plug rod, and magnetic strips are fixedly mounted on the outer surfaces of the box cover and the handle, and the magnetic strips are mutually attracted. Here, the handle can be fixed by the magnetic block.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by arranging a steelmaking furnace, a preheating box, a box cover, a feed hopper, a support plate, a conveying pipe, a fan, a fixed plate, a feeding pipe, a placement frame, a baffle, a slide groove, a rotating block, a connecting plate, a filter screen, a moving groove, a limiting groove, a receiving groove, a fixed block, a spring and a sliding rod, the conveying function of the exhaust gas can be realized through the conveying pipe and the fan, the placement function of the scrap iron position can be realized through the placement frame, the limiting function of the moving path of the baffle can be realized through the slide groove, the limiting function of the baffle position can be realized through the rotating block, and the fixing function of the connecting plate position can be realized through the structural combination of the limiting groove, the receiving groove, the fixed block, the spring and the sliding rod. The structure has strong stability and provides convenience for the replacement of the filter screen through the sliding rod, thereby reducing the use cost of the preheating treatment device and improving the working efficiency of the preheating treatment device.

[0014] 2. In the utility model, by providing a fixing groove, an insertion rod, a pull handle and a magnetic strip, the fixing groove can facilitate the insertion of the insertion rod, the pull handle can realize the function of moving the insertion rod position, and the magnetic strip can realize the function of fixing the pull handle position. The device has a simple structure and provides convenience for the maintenance of the preheating treatment device through the insertion rod, reduces the workload of the staff, and facilitates the use of the preheating treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a scrap steel recovery and preheating treatment device proposed in the utility model;

[0016] Figure 2 This is a side view of the scrap steel recovery and preheating treatment device proposed in the utility model;

[0017] Figure 3 An exploded diagram of a scrap steel recycling and preheating treatment device proposed in the utility model;

[0018] Figure 4 The utility model proposes a scrap steel recovery preheating treatment device Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 The utility model proposes a scrap steel recovery preheating treatment device Figure 3 Enlarged view of point B in the middle.

[0020] Legend:

[0021] 1. Steelmaking furnace; 2. Preheating box; 3. Box cover; 4. Feed hopper; 5. Support plate; 6. Conveying pipe; 7. Fan; 8. Fixed plate; 9. Feeding pipe; 10. Placement frame; 11. Baffle; 12. Slide; 13. Rotating block; 14. Connecting plate; 15. Filter; 16. Moving slot; 17. Limiting slot; 18. Storage slot; 19. Fixed block; 20. Spring; 21. Sliding rod; 22. Fixed slot; 23. Insert rod; 24. Handle; 25. Magnetic strip. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] See also Figure 1-4 The utility model provides a technical solution: a scrap steel recycling preheating treatment device, a preheating box 2 is arranged on one side of the outer surface of the steelmaking furnace 1, a box cover 3 is installed on the top of the preheating box 2, a feeding hopper 4 is fixedly installed on the top of the box cover 3, a support plate 5 is fixedly installed on one side of the outer surface of the preheating box 2, a conveying pipe 6 is fixedly installed on one side of the outer surface of the preheating box 2, a fan 7 and a fixing plate 8 are installed on the outer surface of the conveying pipe 6, a feeding pipe 9 is fixedly installed on the bottom end of the preheating box 2, and a placing frame is fixedly installed on the inner surface of the preheating box 2 10, a slide groove 12 is provided on one side of the outer surface of the preheating box 2 and the placement frame 10, and a baffle 11 is slidably connected to the inner side of the slide groove 12, and the moving path of the baffle 11 is conveniently limited by the slide groove 12, a baffle 11 is installed on one side of the outer surface of the placement frame 10, a rotating block 13 is fixedly installed on one side of the outer surface of the preheating box 2, and the baffle 11 can be limited by the rotating block 13, a connecting plate 14 is installed on one side of the outer surface of the fixed plate 8, and a filter screen 15 is fixedly installed on one side of the outer surface of the connecting plate 14.

[0026] See also Figure 3-4A movable groove 16 is provided on one side of the outer surface of the fixed plate 8, and a filter screen 15 is slidably connected to the inner side of the movable groove 16. The movable groove 16 is used to limit the moving path of the filter screen 15. A limiting groove 17 is provided on the top of the fixed plate 8, and the slide bar 21 can be limited by the limiting groove 17. A receiving groove 18 is provided on the top of the connecting plate 14. A fixed block 19 is fixedly installed on one end of the inner surface of the receiving groove 18, and a spring 20 is fixedly installed on one end of the outer surface of the fixed block 19. A slide bar 21 is fixedly installed on one end of the outer surface of the spring 20, and the slide bar 21 provides convenience for replacing the filter screen 15, thereby reducing the use cost of the preheating treatment device and improving the working efficiency of the preheating treatment device.

[0027] Embodiment 2

[0028] See also Figure 3-5 The outer surfaces of the preheating box 2 and the box cover 3 are both provided with fixing grooves 22, and the inner surfaces of the fixing grooves 22 are slidably connected with plug rods 23, which facilitate the insertion of the plug rods 23. A pull handle 24 is fixedly installed at one end of the outer surface of the plug rod 23, and magnetic strips 25 are fixedly installed on the outer surfaces of the box cover 3 and the pull handle 24. The magnetic strips 25 are adsorbed on each other, and the pull handle 24 can be fixed by the magnetic block. The plug rod 23 provides convenience for the maintenance of the preheating treatment device, reduces the workload of the staff, and facilitates the use of the preheating treatment device.

[0029] Working principle: In the process of using the preheating treatment device, first, the exhaust gas in the steelmaking furnace 1 needs to be transported to the inside of the preheating box 2 through the conveying pipe 6 through the fan 7 and the conveying pipe 6, and the exhaust gas is filtered through the filter 15, and then the scrap steel in the placement frame 10 is preheated by the exhaust gas, and then the rotating block 13 can be rotated, and then the baffle 11 can be pulled out from the inner side of the slide groove 12, and then the preheated scrap steel can be transported to the inner side of the steelmaking furnace 1 through the feeding pipe 9. When the filter 15 needs to be replaced, the spring 20 can be compressed on the inner side of the storage groove 18 by pressing the slide rod 21, and then the filter 15 can be driven by the connecting plate 14 to move out from the inner side of the movable groove 16, and then the filter 15 can be replaced. The filter screen 15 can be replaced. Similarly, the sliding rod 21 can be driven to move to the limiting groove 17 by the reset of the spring 20, and the sliding rod 21 can be limited by the limiting groove 17, so as to complete the fixation of the position of the connecting plate 14, which provides convenience for the replacement of the filter screen 15, reduces the use cost of the preheating treatment device, and improves the working efficiency of the preheating treatment device. When the preheating box 2 needs to be maintained, the pull handle 24 can be used to drive the plug rod 23 to disengage from the inner side of the fixing groove 22, and the magnetic block on the pull handle 24 is separated from the magnetic block on the box cover 3, and then the plug rod 23 can be removed, and then the box cover 3 can be taken out to maintain the preheating box 2, which provides convenience for the maintenance of the preheating treatment device, reduces the workload of the staff, and facilitates the use of the preheating treatment device.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A scrap steel recovery and preheating treatment device, comprising a steelmaking furnace (1), characterized in that: A preheating box (2) is arranged on one side of the outer surface of the steelmaking furnace (1), a box cover (3) is installed on the top of the preheating box (2), a feed hopper (4) is fixedly installed on the top of the box cover (3), a support plate (5) is fixedly installed on one side of the outer surface of the preheating box (2), a conveying pipe (6) is fixedly installed on one side of the outer surface of the preheating box (2), a fan (7) and a fixing plate (8) are installed on the outer surface of the conveying pipe (6), a feeding pipe (9) is fixedly installed on the bottom end of the preheating box (2), and a placing plate (4) is fixedly installed on the inner surface of the preheating box (2). A placing frame (10), a baffle (11) is installed on one side of the outer surface of the placing frame (10), a connecting plate (14) is installed on one side of the outer surface of the fixing plate (8), a filter screen (15) is fixedly installed on one side of the outer surface of the connecting plate (14), a receiving groove (18) is opened at the top of the connecting plate (14), a fixing block (19) is fixedly installed on one end of the inner surface of the receiving groove (18), a spring (20) is fixedly installed on one end of the outer surface of the fixing block (19), and a sliding rod (21) is fixedly installed on one end of the outer surface of the spring (20).

2. The preheat treatment device according to claim 1, characterized in that: A slide groove (12) is provided on one side of the outer surface of the preheating box (2) and the placement frame (10), and a baffle (11) is slidably connected to the inner side of the slide groove (12).

3. The preheat treatment device according to claim 1, characterized in that: A rotating block (13) is fixedly mounted on one side of the outer surface of the preheating box (2).

4. The preheat treatment device according to claim 1, characterized in that: A movable groove (16) is provided on one side of the outer surface of the fixed plate (8), and a filter screen (15) is slidably connected to the inner side of the movable groove (16).

5. The preheat treatment device according to claim 1, characterized in that: A limiting groove (17) is provided at the top end of the fixing plate (8).

6. The preheat treatment device according to claim 1, characterized in that: Both sides of the outer surfaces of the preheating box (2) and the box cover (3) are provided with fixing grooves (22), and the inner surfaces of the fixing grooves (22) are slidably connected with insertion rods (23).

7. The preheat treatment device according to claim 6, characterized in that: A handle (24) is fixedly mounted on one end of the outer surface of the insertion rod (23), and magnetic strips (25) are fixedly mounted on the outer surfaces of the box cover (3) and the handle (24), and the magnetic strips (25) are attracted to each other.

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