Combustion waste gas filtering equipment for iron and steel smelting

Abstract

The utility model discloses combustion waste gas filtering equipment for iron and steel smelting. The combustion waste gas filtering equipment comprises a shell, a protective grating, a filter cloth structure, a filter element, an ash hopper and an assisting assembly, the protective grating, the filter cloth structure and the filter element are sequentially mounted in the shell; the ash hopper is positioned on the lower surface of the shell; the assisting component is positioned on one side of the filter cloth structure; the assisting assembly comprises an assisting unit and a slapping unit; the slapping unit comprises a positioning plate, an elastic rod, a slapping plate, a T-shaped frame and a connecting frame; two ends of the elastic rod are connected with one side of the positioning plate; the other side of the positioning plate is connected with the inner wall of the filter cloth structure; the connecting frames are positioned at two ends of the flapping plate; the beating plate is connected with the elastic rod through the connecting frame; one end of the T-shaped frame is connected with the beating plate, and the other end is connected with the auxiliary unit; dust in waste gas is effectively filtered through the filter cloth structure and the filter element and falls into the dust hopper to be collected, the dust on the surface of the filter cloth structure can be flapped and removed through the elastic rod and the flapping plate of the flapping unit, and the service life of filter cloth is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to combustion waste gas filtering equipment used in steel smelting. Background Art

[0002] Steel smelting waste gas filtration equipment is a key device for treating waste gas in the steel production process. It is mainly composed of an air inlet, filtering components, purification components and an air outlet. It can filter pollutants such as particulate matter, sulfur dioxide, nitrogen oxides, etc. in the waste gas. After layers of filtration and purification, relatively clean gas is discharged from the air outlet, thereby reducing the pollution of steel smelting waste gas to the environment, meeting environmental protection emission standards, and reducing the impact on the surrounding ecology and residents' health.

[0003] Existing technologies include a utility model with publication number CN220677136U, which discloses a dust removal device for steel smelting waste gas that reduces the hazards of dust occupational diseases. The patent adopts a dust removal box, a support leg fixedly mounted on the bottom of the dust removal box, a box door mounted on the front of the dust removal box through a hinged movement, and a processing assembly arranged inside the dust removal box. The processing assembly includes a filter mechanism fixedly mounted inside the dust removal box, a mixing mechanism is arranged below the filter mechanism, and the filter mechanism includes a limit block fixedly connected to the inner wall of the dust removal box. The limit block The internal sliding of the positioning block is provided with a filter plate, and a return spring is fixedly installed on the top right side of the filter plate. By setting the filtering mechanism, the dust in the dust collector can be preliminarily filtered. By setting the mixing mechanism, the exhaust gas and the liquid medicine inside the dust collector can be fully mixed, so that the exhaust gas and the medicine react and are discharged. This solves the problem that the dust will be filtered after the exhaust gas passes through the dust filter box. However, during the long-term use of the device, the dust on the filter plate may accumulate, which may cause the dust in the exhaust gas to not be filtered well, thereby affecting the filtration efficiency.

[0004] In the process of treating the waste gas generated during steel smelting with the help of filtering equipment, there is a waste gas filtering equipment used by most steel smelting on the market. When filtering the waste gas, the dust and other particulate matter in the waste gas will be preliminarily filtered through the filter cloth. The filtered dust will fall into the storage area under the guidance of the filter cloth. However, some dust is tightly attached to the filter cloth, making it difficult for the dust to fall into the storage area, and affecting the air permeability of the filter cloth, thereby interfering with the filtering efficiency and effect of the filter cloth. Utility Model Content

[0005] The purpose of the utility model is to provide a combustion exhaust gas filtering device for steel smelting with good filtering effect, automatic cleaning of filter cloth and simple operation, so as to solve the technical problem that in the existing device, part of the dust adheres to the filter cloth when filtering dust, making it difficult for the dust to fall into the storage area, thereby affecting the air permeability and filtering efficiency of the filter cloth.

[0006] In order to solve the above technical problems, the solutions adopted by the present invention are as follows:

[0007] A combustion exhaust gas filtering device for steel smelting comprises a housing, a protective grille, a filter cloth structure, a filter element, an ash hopper, and an auxiliary assembly; the protective grille, filter cloth structure, and filter element are sequentially mounted inside the housing; the ash hopper is fixedly mounted on the lower surface of the housing and communicates with the interior thereof; the auxiliary assembly is mounted on one side of the filter cloth structure; exhaust gas enters the housing through an air inlet at the protective grille and, under the action of an external air extraction device, gradually passes through the filter cloth structure and the filter element; the filter cloth structure filters dust in the air, and the filtered dust falls into the ash hopper for collection under the guidance of the filter cloth structure;

[0008] The assisting assembly includes an auxiliary unit and a slapping unit; the slapping unit includes a positioning plate, an elastic rod, a slapping plate, a T-shaped frame and a connecting frame; both ends of the elastic rod are fixedly connected to one side of the positioning plate; the other side of the positioning plate is fixedly connected to the inner wall of the filter cloth structure; the connecting frame is installed at both ends of the slapping plate; the slapping plate is fixedly connected to the side surface of the elastic rod through the connecting frame, and contacts the surface of the filter cloth structure; one end of the T-shaped frame is fixedly mounted on the slapping plate, and the other end is connected to the auxiliary unit, and the auxiliary unit pulls the slapping plate to move through the T-shaped frame, and the slapping plate rebounds due to the pulling force of the elastic rod, driving the slapping plate during the rebound process, and the slapping plate slaps the filter cloth structure when resetting to knock off the dust attached to the surface of the filter cloth structure.

[0009] Furthermore, the auxiliary unit includes bracket one, bracket two, a servo motor, a rotating shaft, a connecting sleeve and a push plate; the two ends of the rotating shaft are fixedly connected to the inner wall of the outer shell through bracket one and bracket two respectively; the servo motor is fixedly installed in bracket one, and the output end is fixedly connected to the rotating shaft; the connecting sleeve is fixedly installed on the surface of the rotating shaft; the push plate is fixedly connected to the rotating shaft through the connecting sleeve, and the servo motor is powered by an external power supply. Turn on the switch of the servo motor, the servo motor is powered to drive the rotating shaft, the rotating shaft rotates the connecting sleeve counterclockwise, driving the push plate to rotate, the push plate contacts the T-shaped frame when rotating, and pushes the T-shaped frame. The T-shaped frame is subjected to force to pull the slapping plate, and the slapping plate cooperates with the connecting frame to pull the elastic rod. The elastic rod is pulled and deformed, and at the same time, the push plate separates from the T-shaped frame while continuing to rotate. The T-shaped frame loses the pulling force applied by the push plate and loses the pulling force on the elastic rod. The elastic rod loses the pulling force and rebounds, and drives the slapping plate during the rebound process. The slapping plate slaps the filter cloth structure when resetting, thereby knocking off the dust attached to the surface of the filter cloth structure.

[0010] Furthermore, the filter cloth structures are provided in a plurality, and the auxiliary components match the number of the filter cloth structures. The plurality of filter cloth structures can perform multi-layer filtration on the waste smoke, thereby improving the filtering effect of the equipment on the waste gas.

[0011] Furthermore, the number of the elastic rods is three, and the three elastic rods are evenly distributed on the positioning plate from top to bottom. The three elastic rods can support and limit the position of the flapping plate, and can push the flapping plate to reset through their own elasticity after the flapping plate moves.

[0012] The working principle of this utility model is as follows:

[0013] When the filtering equipment is working, the exhaust gas enters the shell through the air inlet at the protective grille. Under the action of the external exhaust equipment, the exhaust gas gradually passes through the filter cloth structure and the filter element to filter the dust in the air. The filtered dust falls into the ash hopper under the guidance of the filter cloth structure. When the exhaust gas is completely filtered, it can be discharged through the air outlet of the shell. When the filtering equipment is working, turn on the switch of the servo motor, and the external power supply supplies power to the servo motor. The servo motor is energized to drive the shaft, so that the connecting sleeve rotates, and then drives the push plate to rotate. The push plate rotates The slapping plate cooperates with the connecting frame to pull the elastic rod, and the elastic rod is pulled and deformed. At the same time, the push plate separates from the T-frame while continuing to rotate. The T-frame loses the pulling force applied by the push plate and loses the pulling force on the elastic rod. The elastic rod loses the pulling force and rebounds, and drives the slapping plate in the process of rebound. The slapping plate slaps the filter cloth structure when it is reset, thereby knocking off the dust attached to the surface of the filter cloth structure, and self-cleaning the filter cloth structure, further improving the filtering effect of the equipment on exhaust gas.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model effectively filters the dust in the exhaust gas through the filter cloth structure and the filter element, and guides the filtered dust into the ash hopper for collection, which is convenient for the centralized treatment and recycling of dust, and reduces environmental pollution. Through the elastic rod and the flapping plate of the flapping unit, the dust attached to the surface of the filter cloth structure can be flapped and removed by the flapping plate driven by the auxiliary unit, thereby extending the service life of the filter cloth.

[0016] 2. The utility model can achieve multi-layer filtration of exhaust gas through multiple filter cloth structures, further improving the filtering effect. At the same time, the design of three elastic rods not only supports the position of the flapping plate, but also can elastically push the flapping plate to reset after it moves, thereby enhancing the durability and efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the filter cloth structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the assisting component structure of the present utility model;

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0022] In the figure: 1. Outer shell; 2. Protective grille; 3. Filter cloth structure; 4. Filter element; 5. Ash hopper; 6. Assisting component; 61. Auxiliary unit; 611. Bracket 1; 612. Bracket 2; 613. Servo motor; 614. Rotating shaft; 615. Connecting sleeve; 616. Push plate; 617. Reinforcement frame; 62. Slapping unit; 621. Positioning plate; 622. Elastic rod; 623. Slapping plate; 624. T-shaped frame; 625. Connecting frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following is a detailed description of the exhaust gas filtration equipment for steel smelting according to the present invention in conjunction with the accompanying drawings: Example 1

[0026] A combustion exhaust gas filtering device for steel smelting, comprising a housing 1, a protective grille 2, a filter cloth structure 3, a filter element 4, an ash hopper 5 and an assisting assembly 6; the protective grille 2, the filter cloth structure 3 and the filter element 4 are sequentially mounted inside the housing 1; the ash hopper 5 is fixedly mounted on the lower surface of the housing 1 and is in communication with the interior thereof; the assisting assembly 6 is mounted on one side of the filter cloth structure 3; the assisting assembly 6 comprises an auxiliary unit 61 and a slapping unit 62; the slapping unit 62 comprises a positioning plate 621, an elastic rod 622, a slapping plate 623, a T-shaped Frame 624 and connecting frame 625; both ends of the elastic rod 622 are fixedly connected to one side of the positioning plate 621; the other side of the positioning plate 621 is fixedly connected to the inner wall of the filter cloth structure 3; the connecting frame 625 is installed at both ends of the flapping plate 623; the flapping plate 623 is fixedly connected to the side surface of the elastic rod 622 through the connecting frame 625, and is in contact with the surface of the filter cloth structure 3; one end of the T-shaped frame 624 is fixedly mounted on the flapping plate 623, and the other end is connected to the auxiliary unit 61.

[0027] The working principle of this embodiment is as follows:

[0028] During operation, the exhaust gas enters the interior of the outer shell 1 through the air inlet at the protective grille 2. Under the action of the external exhaust equipment, the exhaust gas gradually passes through the filter cloth structure 3 and the filter element 4 to filter the dust in the air. The filtered dust falls into the ash hopper 5 under the guidance of the filter cloth structure 3. When the exhaust gas is filtered, it can be discharged through the air outlet of the outer shell 1; the auxiliary unit 61 pushes the T-shaped frame 624 to pull the flapping plate 623, and the flapping plate 623 cooperates with the connecting frame 625 to pull the elastic rod 622. The elastic rod 622 is pulled and deformed. When the T-shaped frame 624 loses the tension applied by the auxiliary unit 61, the elastic rod 622 loses the tension and rebounds to drive the flapping plate 623 to reset. The flapping plate 623 slaps the filter cloth structure 3 when resetting, thereby knocking off the dust attached to the surface of the filter cloth structure 3, and self-cleans the filter cloth structure 3, further improving the equipment's filtering effect on exhaust gas. Example 2

[0029] The difference from Example 1 is that the auxiliary unit 61 includes a bracket 1 611, a bracket 2 612, a servo motor 613, a rotating shaft 614, a connecting sleeve 615 and a push plate 616; the two ends of the rotating shaft 614 are fixedly connected to the inner wall of the shell 1 through the bracket 1 611 and the bracket 2 612 respectively; the servo motor 613 is fixedly installed in the bracket 1 611, and the output end is fixedly connected to the rotating shaft 614; the connecting sleeve 615 is fixedly installed on the surface of the rotating shaft 614; the push plate 616 is fixedly connected to the rotating shaft 614 through the connecting sleeve 615. The switch of the servo motor 613 is turned on, and the servo motor 613 is energized to drive the rotating shaft 614. The rotating shaft 614 rotates the connecting sleeve 615 counterclockwise, driving the push plate 616 to rotate. The push plate 616 contacts the T-shaped frame 624 when rotating and pushes the T-shaped frame 624. The T-shaped frame 624 is subjected to force to pull the slapping plate 623, and the slapping plate 623 cooperates with the connecting frame 625 to pull the elastic rod 622. The elastic rod 622 is pulled and deformed. At the same time, the push plate 616 separates from the T-shaped frame 624 while continuing to rotate. The T-shaped frame 624 loses the pulling force applied by the push plate 616 and loses the pulling force on the elastic rod 622. The elastic rod 622 loses the pulling force and rebounds, and drives the slapping plate 623 during the rebound process. The slapping plate 623 slaps the filter cloth structure 3 when resetting, thereby knocking off the dust attached to the surface of the filter cloth structure 3.

[0030] The working principle of this embodiment is the same as that of embodiment 1. Example 3

[0031] The difference from Example 2 is that there are multiple filter cloth structures 3; the number of assisting components 6 matches the number of filter cloth structures 3; and there are three elastic rods 622, evenly distributed from top to bottom on the positioning plate 621. Multiple filter cloth structures 3 enable multi-layer filtration of waste smoke, improving the equipment's filtering effect on waste gas; the three elastic rods 622 support and limit the position of the flapping plate 623, and after the flapping plate 623 moves, they can push the flapping plate 623 back to its original position through their own elasticity.

[0032] The working principle of this embodiment is the same as that of embodiment 2.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combustion exhaust gas filtration device for steel smelting, characterized by: The utility model comprises a housing (1), a protective grille (2), a filter cloth structure (3), a filter element (4), an ash hopper (5) and an assisting assembly (6); the protective grille (2), the filter cloth structure (3) and the filter element (4) are sequentially installed inside the housing (1); the ash hopper (5) is fixedly installed on the lower surface of the housing (1) and is in communication with the interior thereof; the assisting assembly (6) is installed on one side of the filter cloth structure (3); The assisting assembly (6) comprises an auxiliary unit (61) and a slapping unit (62); the slapping unit (62) comprises a positioning plate (621), an elastic rod (622), a slapping plate (623), a T-shaped frame (624) and a connecting frame (625); both ends of the elastic rod (622) are fixedly connected to one side of the positioning plate (621); the other side of the positioning plate (621) is fixedly connected to the inner wall of the filter cloth structure (3); the connecting frame (625) is mounted on both ends of the slapping plate (623); the slapping plate (623) is fixedly connected to the side surface of the elastic rod (622) through the connecting frame (625) and contacts the surface of the filter cloth structure (3); one end of the T-shaped frame (624) is fixedly mounted on the slapping plate (623), and the other end is connected to the auxiliary unit (61).

2. The combustion exhaust gas filtering equipment for steel smelting according to claim 1, characterized in that: The auxiliary unit (61) includes a bracket 1 (611), a bracket 2 (612), a servo motor (613), a rotating shaft (614), a connecting sleeve (615) and a push plate (616); the two ends of the rotating shaft (614) are fixedly connected to the inner wall of the housing (1) through the bracket 1 (611) and the bracket 2 (612) respectively; the servo motor (613) is fixedly installed in the bracket 1 (611), and the output end is fixedly connected to the rotating shaft (614); the connecting sleeve (615) is fixedly installed on the surface of the rotating shaft (614); and the push plate (616) is fixedly connected to the rotating shaft (614) through the connecting sleeve (615).

3. The combustion exhaust gas filtering equipment for steel smelting according to claim 1, characterized in that: The filter cloth structures (3) are provided in a plurality; the number of the assisting components (6) matches the number of the filter cloth structures (3).

4. The combustion exhaust gas filtering equipment for steel smelting according to claim 1, characterized in that: The number of the elastic rods (622) is three, and the three elastic rods (622) are evenly distributed on the positioning plate (621) from top to bottom.

Images