Sintering fan for steel mill

Abstract

The utility model relates to the technical field of fans, in particular to a sintering fan for a steel mill, which comprises a main body, a sleeve is arranged on the main body, a first fixing ring is arranged on the inner side of the sleeve, a filter screen is arranged on the first fixing ring, and a fixing assembly is arranged between the first fixing ring and the sleeve. In the working process, the sleeve component, the dust removal bag component and the filter screen component are matched with one another, so that air exhausted by the main body is filtered in a multi-layer mode, the filtering effect on the exhausted air is achieved, and pollution to the surrounding environment is avoided; and through mutual cooperation of the buckle component and the second fixing ring component, the dust removal bag can be conveniently and rapidly mounted and dismounted, and through mutual cooperation of the sliding block component, the first fixing ring and the driving rod component, the position of the filter screen is limited, and the filter screen is prevented from moving in the working process.

Description

Technical Field

[0001] This application relates to the technical field of fans, and in particular to a sintering fan for steel plants. Background Technology

[0002] Sintering blowers are key equipment in the sintering process of steel plants. They are mainly used to provide ventilation power during the sintering process, allowing air to pass through the mixture laid on the sintering machine trolley. Through this ventilation, the fuel in the mixture is burned, and the heat generated causes a series of physicochemical changes in the minerals in the mixture, ultimately sintering the mixture into blocks. This is an important step in the preparation of raw materials for blast furnace ironmaking.

[0003] Operating on the principle of negative pressure ventilation, when the sintering blower is started, a negative pressure is generated on one side of its air inlet. This negative pressure causes air to enter from above the material layer of the sintering machine and then pass through the entire mixed material layer in sequence. During the process of the air passing through the material layer, the fuel in the mixture reacts with oxygen to release heat. The exhaust gas after combustion and the air that has not participated in the reaction are drawn into the air inlet of the blower under the action of negative pressure. After being accelerated by the rotation of the blower impeller, they are discharged from the air outlet.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In the prior art, sintering blowers generate a large amount of impurities during operation. If these impurities are directly discharged, they will cause serious environmental pollution. In order to solve the problem that the existing sintering blowers cannot filter the discharged gas and cause environmental pollution, this application proposes to install a filter assembly at the outlet of the sintering blower to filter the impurities in the discharged gas, thereby preventing impurities from floating in the air and causing environmental pollution. Utility Model Content

[0005] In order to filter the gas discharged from the sintering blower and avoid air pollution, this application provides a sintering blower for steel plants.

[0006] This application provides a sintering blower for steel plants, which adopts the following technical solution: it includes a main body, a sleeve is provided on the main body, a fixing ring is provided on the inner side of the sleeve, a filter screen is provided on the fixing ring, a fixing component is provided between the fixing ring and the sleeve, a dust collection bag is provided at the end of the sleeve away from the main body, a fixing ring is provided on the dust collection bag, and a limit component is provided between the fixing ring and the sleeve.

[0007] Optionally, the fixing component includes a limiting plate, which is installed on the inner wall of the sleeve. A limiting groove is provided on the fixing ring at the corresponding position of the sleeve. The limiting plate is slidably disposed with the limiting groove. The limiting plate is L-shaped.

[0008] Optionally, the fixing component further includes a slider, which is disposed on one side of the fixing ring. The inner wall of the sleeve is provided with a groove, and the slider is slidably disposed with the groove. The lower end of the slider is chamfered, and a drive rod is rotatably mounted on the upper end of the slider, with one end of the drive rod passing through the sleeve.

[0009] Optionally, a tension spring is fitted onto the drive rod, one end of which is mounted on the sleeve, and a turntable is mounted on the other end of the tension spring, the turntable being rotatably mounted on the drive rod.

[0010] Optionally, the end of the drive rod away from the slider is provided with a helix, the helix is ​​threadedly connected to the sleeve, and multiple sliders are provided, which are evenly distributed.

[0011] Optionally, the limiting component includes positioning rods, and multiple positioning rods are provided. One end of each positioning rod is installed on the second fixing ring. A positioning groove is provided on the sleeve at the corresponding position of the positioning rod. The positioning rod is inserted into the positioning groove. The second fixing ring is provided with a buckle on the outside of the sleeve.

[0012] Optionally, multiple limiting plates are provided, and the multiple limiting plates are evenly distributed inside the sleeve.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, by incorporating components such as a sleeve, filter screen, dust bag, slider, drive rod, and buckle, achieves multi-layer filtration of the exhaust air during operation through the cooperation of the sleeve, dust bag, and filter screen components. This filtration effectively prevents pollution of the surrounding environment. The buckle and fixing ring components facilitate quick installation and removal of the dust bag. The slider, fixing ring, and drive rod components work together to restrict the position of the filter screen, preventing it from moving during operation.

[0015] 2. This utility model, by setting a limiting plate, limiting groove, positioning rod, positioning hole, etc., restricts the position and movement direction of the first fixed ring by the cooperation between the limiting plate component and the limiting groove during the working process, preventing the first fixed ring from rotating inside the sleeve, and also preventing the filter screen from rotating. The positioning rod component and the positioning hole cooperate with each other to facilitate the precise connection of the second fixed ring to the sleeve, and facilitates the subsequent fixation of the second fixed ring and the sleeve by the buckle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0018] Figure 3 This is a partial explosion diagram of an embodiment of this application;

[0019] Figure 4 This is an embodiment of the present application. Figure 2 Enlarged diagram of point A in the middle.

[0020] Reference numerals in the attached drawings: 1. Main body; 2. Sleeve; 3. Fixing ring one; 4. Filter screen; 5. Dust bag; 6. Fixing ring two; 7. Limiting plate; 8. Limiting groove; 9. Slider; 10. Slide groove; 11. Drive rod; 12. Tension spring; 13. Turntable; 14. Helical line; 15. Positioning rod; 16. Positioning groove; 17. Buckle. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] This application discloses a sintering blower for steel plants. For example... Figure 1 , Figure 3 , Figure 4As shown, the device includes a main body 1, a sleeve 2 on the main body 1, a fixing ring 3 on the inner side of the sleeve 2, a filter screen 4 on the fixing ring 3, and a fixing assembly between the fixing ring 3 and the sleeve 2. The fixing assembly includes multiple limiting plates 7, which are evenly distributed on the inner side of the sleeve 2 and installed on the inner wall of the sleeve 2. The fixing ring 3 at the corresponding position on the sleeve 2 is provided with a limiting groove 8. The limiting plates 7 and the limiting groove 8 are slidably arranged. The connection stability between the fixing ring 3 and the sleeve 2 is improved by the mutual cooperation between the multiple limiting plates 7 and the limiting groove 8.

[0024] In this embodiment, the limiting plate 7 is L-shaped, and the fixing component also includes a slider 9. The slider 9 is disposed on one side of the fixing ring 3. The inner wall of the sleeve 2 is provided with a sliding groove 10. The slider 9 slides with the sliding groove 10. The lower end of the slider 9 is chamfered, and the upper end of the slider 9 is rotatably mounted with a drive rod 11.

[0025] Combination Figure 2 , Figure 4 As shown, a spiral 14 is provided at the end of the drive rod 11 away from the slider 9. The spiral 14 is threadedly connected to the sleeve 2. When it is necessary to restrict the position of the drive rod 11, the operator rotates the drive rod 11, and the drive rod 11 drives the spiral 14 to cooperate with the sleeve 2, thereby restricting the position of the drive rod 11. Reversing the rotation of the drive rod 11 releases the fixed restriction on the drive rod 11.

[0026] In this embodiment, multiple sliders 9 are provided and evenly distributed. One end of the drive rod 11 passes through the sleeve 2, and a tension spring 12 is sleeved on the drive rod 11. One end of the tension spring 12 is installed on the sleeve 2, and the other end of the tension spring 12 is installed on a turntable 13, which is rotatably mounted on the drive rod 11. When the drive rod 11 moves toward the center of the sleeve 2, the drive rod 11 drives the tension spring 12 to stretch and store force through the turntable 13. When the tension spring 12 releases the force, it drives the drive rod 11 to reset. The tension applied to the drive rod 11 by the tension spring 12 achieves the limiting effect.

[0027] like Figure 3 As shown, a dust bag 5 is provided at the end of the sleeve 2 away from the main body 1. A fixing ring 6 is provided on the dust bag 5. A limit assembly is provided between the fixing ring 6 and the sleeve 2. The limit assembly includes a positioning rod 15. Multiple positioning rods 15 are provided, and one end of the multiple positioning rods 15 is installed on the fixing ring 6.

[0028] In this embodiment, a positioning groove 16 is provided on the sleeve 2 at the corresponding position of the positioning rod 15. The positioning rod 15 and the positioning groove 16 cooperate with each other to restrict the installation position between the fixing ring 2 6 and the sleeve 2, which facilitates the subsequent fixing of the buckle 17. The positioning rod 15 is inserted into the positioning groove 16, and the fixing ring 2 6 and the outer side of the sleeve 2 are provided with buckles 17.

[0029] The implementation principle of a sintering blower for steel plants according to an embodiment of this application is as follows: During operation, the gas discharged from the main body 1 first passes through the filter screen 4, where larger impurities are removed. The gas then flows to the dust collection bag 5, where smaller impurities are removed, thus achieving the effect of removing impurities from the gas. When the dust collection bag 5 needs to be disassembled and replaced, the buckle 17 is opened to release the restriction on the fixing ring 6, and then the fixing ring 6 is driven away from the sleeve 2. A new filter screen 4 is then installed, and the positioning rod 15 is used during installation. Align the positioning rod 15 with the positioning groove 16 and insert it into the positioning groove 16 to facilitate the quick engagement of the subsequent snap-fit ​​17. When the filter screen 4 needs to be replaced, first remove the dust bag 5, then rotate the drive rod 11 so that the spiral 14 on the drive rod 11 separates from the sleeve 2. At this time, the tension spring 12 drives the turntable 13 to move, the turntable 13 drives the drive rod 11 to move, the drive rod 11 drives the slider 9 to move, the slider 9 separates from the fixing ring 3, and then the filter screen 4 can be taken out and replaced. After the replacement is completed, the drive rod 11 can be operated in reverse.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sintering blower for steel plants, comprising a main body (1), characterized in that: A sleeve (2) is provided on the main body (1). A fixing ring (3) is provided on the inner side of the sleeve (2). A filter screen (4) is provided on the fixing ring (3). A fixing component is provided between the fixing ring (3) and the sleeve (2). A dust removal bag (5) is provided at the end of the sleeve (2) away from the main body (1). A fixing ring (6) is provided on the dust removal bag (5). A limiting component is provided between the fixing ring (6) and the sleeve (2).

2. A sintering blower for steel plants according to claim 1, characterized in that: The fixing component includes a limiting plate (7), which is installed on the inner wall of the sleeve (2). A limiting groove (8) is provided on the fixing ring (3) at the corresponding position of the sleeve (2). The limiting plate (7) and the limiting groove (8) are slidably arranged. The limiting plate (7) is "L" shaped.

3. A sintering blower for steel plants according to claim 2, characterized in that: The fixing assembly also includes a slider (9), which is disposed on one side of the fixing ring (3). The inner wall of the sleeve (2) is provided with a groove (10), and the slider (9) is slidably disposed with the groove (10). The lower end of the slider (9) is chamfered, and a drive rod (11) is rotatably mounted on the upper end of the slider (9). One end of the drive rod (11) passes through the sleeve (2).

4. A sintering blower for steel plants according to claim 3, characterized in that: A tension spring (12) is fitted on the drive rod (11). One end of the tension spring (12) is mounted on the sleeve (2), and a turntable (13) is mounted on the other end of the tension spring (12). The turntable (13) is rotatably mounted on the drive rod (11).

5. A sintering blower for steel plants according to claim 3, characterized in that: The drive rod (11) has a spiral (14) at the end away from the slider (9), the spiral (14) is threadedly connected to the sleeve (2), and there are multiple sliders (9) evenly distributed.

6. A sintering blower for steel plants according to claim 1, characterized in that: The limiting component includes a positioning rod (15), and multiple positioning rods (15) are provided. One end of the multiple positioning rods (15) is installed on the fixing ring (6). The sleeve (2) at the corresponding position of the positioning rod (15) is provided with a positioning groove (16). The positioning rod (15) is inserted into the positioning groove (16). The fixing ring (6) and the outside of the sleeve (2) are provided with a buckle (17).

7. A sintering blower for steel plants according to claim 2, characterized in that: Multiple limiting plates (7) are provided, and the multiple limiting plates (7) are evenly distributed inside the sleeve (2).

Images