Converter steelmaking flue gas emission purification device
By introducing a heat exchanger box into the converter steelmaking flue gas purification device to recover the flue gas heat and using the inclined plate and filter plate structure for double dust filtration, the problems of waste of high-temperature flue gas heat and poor dust filtration are solved, and the problem of poor dust filtration effect is achieved. Efficient purification of smoke.
Patent Information
- Application Number
- CN202420131607.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The high-temperature flue gas generated by converter steelmaking is difficult to recycle, resulting in waste of thermal energy resources. At the same time, the existing purification devices have poor dust filtration effect.
A converter steelmaking flue gas emission purification device including a heat exchange box and a purification box is designed. The flue gas heat is recovered by using cold water through the heat exchange box, and the dust is double filtration and purification through the inclined plate and filter plate structure.
The waste heat of the flue gas is effectively utilized, the heat energy loss is reduced, and the dust filtration effect is significantly improved through the dual filter structure.
Smart Images
Figure CN222160220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue gas purification, in particular to a converter steelmaking flue gas emission purification device. Background Art
[0002] Converter steelmaking uses molten iron, scrap steel and ferroalloys as the main raw materials. It does not rely on external energy sources, but relies on the physical heat of the molten iron itself and the chemical reactions between the components of the molten iron to generate heat to complete the steelmaking process in the converter. Converter steelmaking will produce a large amount of flue gas, which requires purification equipment to purify the emitted flue gas.
[0003] In the prior art, since the temperature of the flue gas generated by converter steelmaking can be as high as 1450°C and contains a large amount of heat, the high temperature in the flue gas cannot be recycled and the filtered flue gas is directly discharged, which easily causes a waste of thermal energy resources. Utility Model Content
[0004] The utility model mainly provides a converter steelmaking flue gas emission purification device which is convenient for utilizing flue gas residual temperature and improving the flue gas dust filtering effect.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a converter steelmaking fume emission purification device, comprising a shell, the interior of the shell is fixedly connected to a fixing plate, one side of the fixing plate is fixedly connected to a heat exchange box, one side of the heat exchange box is fixedly connected to a liquid inlet pipe, one end of the liquid inlet pipe passes through one side of the shell, the other side of the heat exchange box is fixedly connected to a liquid outlet pipe, one end of the liquid outlet pipe passes through one side of the shell, the outside of the heat exchange box is fixedly surrounded by a first connecting pipe, one end of the first connecting pipe is inserted through the fixing plate, the other end of the first connecting pipe passes through one side of the shell and is fixedly connected to a fan, one side of the fan is fixedly connected to a purification box, and one side of the purification box is fixedly connected to the shell. On one side, one end of the fan is fixedly connected to the second connecting pipe, and one end of the second connecting pipe passes through the top wall of the purification box. The flue gas enters from one end of the first connecting pipe, surrounds the outside of the heat exchange box through the first connecting pipe, and adds cold water to the inside of the heat exchange box through the liquid inlet pipe. The high-temperature flue gas can heat the water inside the heat exchange box, and the heated water can be sent out through the liquid outlet pipe. A valve is installed on the liquid outlet pipe to control the sending of water inside the heat exchange box, so as to make use of the high temperature in the flue gas and reduce the loss of heat energy. When the fan works, the flue gas is sent into the purification box through the first connecting pipe and the second connecting pipe, and is filtered and purified through the filter element equipped with activated carbon. Finally, the flue gas is sent to the air through the outlet pipe, thereby realizing the filtration and purification of the flue gas.
[0006] Preferably, a filter element is arranged inside the purification box, one side of the filter element passes through one side of the purification box, and a mounting plate is arranged on the other side of the filter element. The mounting plate and the purification box are fixedly connected by bolts, and the other side of the purification box is fixedly connected to the exhaust pipe, so that activated carbon can be placed inside the filter element. When the flue gas passes through the filter element, harmful substances in the flue gas are filtered and purified. By removing the mounting plate, the activated carbon inside the filter element can be replaced, thereby improving the purification effect.
[0007] Preferably, the inside of the shell is fixedly connected to a filter plate, and a brush plate is provided on one side of the filter plate, and one side of the brush plate is slidably connected to a guide rod, and both ends of the guide rod are fixedly connected to the inner side of the shell, and one side of the brush plate is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to one side of the shell, and the other end of the threaded rod passes through the other side of the shell and is fixedly connected to a motor, and the motor is fixedly connected to the outside of the shell, and a filter plate is provided inside the shell to filter dust in the flue gas, and the threaded rod can be driven to rotate by the operation of the motor, and the brush plate moves, and the brush plate slides on the guide rod, which is convenient for the brush plate to move in the horizontal direction. The brush plate moves to clean the filter plate to prevent the filter plate from being blocked.
[0008] Preferably, the interior of the shell is fixedly connected to the second inclined plate, and first inclined plates are arranged on both sides of the second inclined plate. The first inclined plate is fixedly connected to the interior of the shell, and the first inclined plate is designed to be inclined. Both sides of the second inclined plate are designed to be inclined, and multiple protrusions are arranged on both sides of the first inclined plate and the second inclined plate. When the flue gas passes through the first inclined plate and the second inclined plate, the dust is hit on the protrusions and left behind, which facilitates the filtering of the dust in the flue gas.
[0009] Preferably, one side of the shell is fixedly connected to an air inlet pipe, and an external flue gas conveying device is connected to the air inlet pipe to deliver the flue gas from converter steelmaking into the interior of the shell.
[0010] Preferably, the bottom side of the shell is fixedly connected to the discharge port, and the inner side of the shell is fixedly connected to the guide plate. The side edge of the guide plate is arranged to be inclined, so as to facilitate guiding the dust inside the shell to the discharge port, and opening the valve on the discharge port to send the dust out.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are:
[0012] 1. In the utility model, a heat exchange box is arranged inside the shell to transport cold water to the inside of the heat exchange box. The first connecting pipe surrounds the outside of the heat exchange box. The flue gas exchanges heat with the inside of the heat exchange box through the first connecting pipe. The high-temperature flue gas can heat the water inside the heat exchange box, which is convenient for utilizing the high temperature in the flue gas and reducing the loss of heat energy.
[0013] 2. In the utility model, through the inclined design of the first inclined plate and the second inclined plate, the smoke hits on the convex blocks of the first inclined plate and the second inclined plate, and the dust in the smoke is retained, thereby coarsely filtering the dust in the smoke, and then the smoke passes through the filter plate, and the dust in the smoke can be filtered through the filter plate, thereby doubly filtering the dust in the smoke and improving the dust filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A stereoscopic diagram of a converter steelmaking fume emission purification device is provided for the utility model;
[0015] Figure 2 The utility model provides a first internal cross-sectional structural schematic diagram of a converter steelmaking fume emission purification device;
[0016] Figure 3 The utility model provides a second internal cross-sectional structural diagram of a converter steelmaking fume emission purification device;
[0017] Figure 4 The utility model provides a schematic diagram of the connection structure of a heat exchange box of a converter steelmaking fume emission purification device.
[0018] Legend: 1. Shell; 2. Liquid inlet pipe; 3. First connecting pipe; 4. Fan; 5. Mounting plate; 6. Purification box; 7. Air outlet pipe; 8. Air inlet pipe; 9. Motor; 10. First inclined plate; 11. Discharge port; 12. Second inclined plate; 13. Guide plate; 14. Filter plate; 15. Brush plate; 16. Fixed plate; 17. Second connecting pipe; 18. Filter element; 19. Heat exchange box; 20. Guide rod; 21. Threaded rod; 22. Liquid outlet pipe. DETAILED DESCRIPTION
[0019] 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.
[0020] 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.
[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a converter steelmaking fume emission purification device, comprising a shell 1, the interior of the shell 1 is fixedly connected to a fixing plate 16, one side of the fixing plate 16 is fixedly connected to a heat exchange box 19, one side of the heat exchange box 19 is fixedly connected to a liquid inlet pipe 2, one end of the liquid inlet pipe 2 passes through one side of the shell 1, the other side of the heat exchange box 19 is fixedly connected to a liquid outlet pipe 22, one end of the liquid outlet pipe 22 passes through one side of the shell 1, the outside of the heat exchange box 19 is fixedly surrounded by a first connecting pipe 3, one end of the first connecting pipe 3 is inserted through the fixing plate 16, the other end of the first connecting pipe 3 passes through one side of the shell 1 and is fixedly connected to a fan 4, one side of the fan 4 is fixedly connected to a purification box 6, one side of the purification box 6 is fixedly connected to one side of the shell 1, and one end of the fan 4 is fixedly connected The second connecting pipe 17 is connected, and one end of the second connecting pipe 17 passes through the top wall of the purification box 6. The flue gas enters from one end of the first connecting pipe 3, surrounds the outside of the heat exchange box 19 through the first connecting pipe 3, and adds cold water to the inside of the heat exchange box 19 through the liquid inlet pipe 2. The high-temperature flue gas can heat the water inside the heat exchange box 19, and the heated water can be sent out through the liquid outlet pipe 22. A valve is installed on the liquid outlet pipe 22 to control the delivery of the water inside the heat exchange box 19, so as to make use of the high temperature in the flue gas and reduce the loss of heat energy. The fan 4 works to send the flue gas into the purification box 6 through the first connecting pipe 3 and the second connecting pipe 17, and is filtered and purified through the filter element 18 filled with activated carbon. Finally, the flue gas is sent to the air through the outlet pipe 7, thereby realizing the filtration and purification of the flue gas.
[0022] like Figure 2 and Figure 3 As shown, a filter element 18 is arranged inside the purification box 6, one side of the filter element 18 passes through one side of the purification box 6, and a mounting plate 5 is arranged on the other side of the filter element 18. The mounting plate 5 and the purification box 6 are fixedly connected by bolts, and the other side of the purification box 6 is fixedly connected to the exhaust pipe 7, so that activated carbon can be placed inside the filter element 18. When the flue gas passes through the filter element 18, harmful substances in the flue gas are filtered and purified. By removing the mounting plate 5, the activated carbon inside the filter element 18 can be replaced, thereby improving the purification effect.
[0023] like Figure 2 and Figure 3As shown, the inside of the shell 1 is fixedly connected to the filter plate 14, and a brush plate 15 is arranged on one side of the filter plate 14. One side of the brush plate 15 is slidably connected to the guide rod 20. Both ends of the guide rod 20 are fixedly connected to the inner side of the shell 1. One side of the brush plate 15 is threadedly connected to the threaded rod 21. One end of the threaded rod 21 is rotatably connected to one side of the shell 1, and the other end of the threaded rod 21 passes through the other side of the shell 1 and is fixedly connected to the motor 9. The motor 9 is fixedly connected to the outside of the shell 1. The filter plate 14 is arranged inside the shell 1 to filter the dust in the flue gas. The motor 9 can drive the threaded rod 21 to rotate and the brush plate 15 to move. The brush plate 15 slides on the guide rod 20 to facilitate the horizontal movement of the brush plate 15. The brush plate 15 moves to clean the filter plate 14 to prevent the filter plate 14 from being blocked.
[0024] like Figure 2 and Figure 3 As shown, the interior of the shell 1 is fixedly connected to the second inclined plate 12, and the first inclined plate 10 is arranged on both sides of the second inclined plate 12. The first inclined plate 10 is fixedly connected to the interior of the shell 1. The first inclined plate 10 is designed to be inclined, and both sides of the second inclined plate 12 are designed to be inclined. A plurality of protrusions are arranged on both sides of the first inclined plate 10 and the second inclined plate 12. When the flue gas passes through the first inclined plate 10 and the second inclined plate 12, the dust is beaten on the protrusions and left behind, so that the dust in the flue gas can be filtered.
[0025] like Figure 2 and Figure 3 As shown, one side of the shell 1 is fixedly connected to an air intake pipe 8, and an external flue gas conveying device is connected through the air intake pipe 8 to deliver the flue gas from converter steelmaking into the interior of the shell 1.
[0026] like Figure 2 and Figure 3 As shown, the bottom side of the shell 1 is fixedly connected to the discharge port 11, and the inner side of the shell 1 is fixedly connected to the guide plate 13. The side of the guide plate 13 is set to an inclined shape, so that the dust inside the shell 1 is conveniently guided to the discharge port 11, and the valve on the discharge port 11 is opened to send the dust out.
[0027] The use method and working principle of the device are as follows: first, the smoke is connected to the smoke conveying device through the air inlet pipe 8 to deliver the smoke to the inside of the shell 1. The smoke passes through the inclined first inclined plate 10 and the second inclined plate 12, and the smoke hits the protrusions of the first inclined plate 10 and the second inclined plate 12, so that the dust in the smoke is retained, thereby roughly filtering the dust in the smoke. Then the smoke passes through the filter plate 14, and the dust in the smoke can be filtered through the filter plate 14. The motor 9 drives the threaded rod 21 to rotate, so that the brush plate 15 moves. The brush plate 15 slides on the guide rod 20, which is convenient for the brush plate 15 to move in the horizontal direction, thereby cleaning the dust on one side of the filter plate 14 to prevent the dust from clogging the filter plate 14 and affecting the speed of the smoke passing through. The discharge port 11 is installed The dust in the flue gas can be sent out through the discharge port 11, the flue gas enters from one end of the first connecting pipe 3, surrounds the outside of the heat exchange box 19 through the first connecting pipe 3, and adds cold water to the inside of the heat exchange box 19 through the liquid inlet pipe 2. The high-temperature flue gas can heat the water inside the heat exchange box 19, and the heated water can be sent out through the liquid outlet pipe 22. A valve is installed on the liquid outlet pipe 22 to control the water delivery inside the heat exchange box 19, so as to utilize the high temperature in the flue gas and reduce the loss of heat energy. The fan 4 works to send the flue gas into the purification box 6 through the first connecting pipe 3 and the second connecting pipe 17, and is filtered and purified through the filter element 18 filled with activated carbon. Finally, the flue gas is sent to the air through the outlet pipe 7, thereby realizing the filtration and purification of the flue gas.
[0028] 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 converter steelmaking fume emission purification device, comprising a housing (1), characterized in that: The interior of the shell (1) is fixedly connected to a fixing plate (16), one side of the fixing plate (16) is fixedly connected to a heat exchange box (19), one side of the heat exchange box (19) is fixedly connected to a liquid inlet pipe (2), one end of the liquid inlet pipe (2) passes through one side of the shell (1), the other side of the heat exchange box (19) is fixedly connected to a liquid outlet pipe (22), one end of the liquid outlet pipe (22) passes through one side of the shell (1), the exterior of the heat exchange box (19) is fixedly surrounded by a first connecting pipe (3), one end of the first connecting pipe (3) is inserted through the fixing plate (16), the other end of the first connecting pipe (3) passes through one side of the shell (1) and is fixedly connected to a fan (4), one side of the fan (4) is fixedly connected to a purification box (6), one side of the purification box (6) is fixedly connected to one side of the shell (1), one end of the fan (4) is fixedly connected to a second connecting pipe (17), one end of the second connecting pipe (17) passes through the top wall of the purification box (6).
2. The converter steelmaking fume emission purification device according to claim 1 is characterized in that: A filter element (18) is arranged inside the purification box (6), one side of the filter element (18) passes through one side of the purification box (6), a mounting plate (5) is arranged on the other side of the filter element (18), the mounting plate (5) and the purification box (6) are fixedly connected by bolts, and the other side of the purification box (6) is fixedly connected to the air outlet pipe (7).
3. The converter steelmaking fume emission purification device according to claim 1, characterized in that: The inside of the shell (1) is fixedly connected to a filter plate (14), one side of the filter plate (14) is provided with a brush plate (15), one side of the brush plate (15) is slidably connected to a guide rod (20), both ends of the guide rod (20) are fixedly connected to the inside of the shell (1), one side of the brush plate (15) is threadedly connected to a threaded rod (21), one end of the threaded rod (21) is rotatably connected to one side of the shell (1), and the other end of the threaded rod (21) passes through the other side of the shell (1) and is fixedly connected to a motor (9), and the motor (9) is fixedly connected to the outside of the shell (1).
4. The converter steelmaking fume emission purification device according to claim 1, characterized in that: The interior of the housing (1) is fixedly connected to a second inclined plate (12), both sides of the second inclined plate (12) are provided with first inclined plates (10), and the first inclined plates (10) are fixedly connected to the interior of the housing (1).
5. The converter steelmaking fume emission purification device according to claim 1, characterized in that: One side of the housing (1) is fixedly connected to an air intake pipe (8).
6. The converter steelmaking fume emission purification device according to claim 1, characterized in that: The bottom side of the shell (1) is fixedly connected to the discharge port (11), and the inner side of the shell (1) is fixedly connected to the guide plate (13).