Dust removal device for steel furnace
By using water pumps and spraying nozzle systems in the steelmaking furnace dust removal device, the problem of direct dust removal of high-temperature flue gas in the prior art has been solved, and the flue gas temperature reduction and harmful gases are achieved The filtration extends the device life and saves energy and is environmentally friendly.
Patent Information
- Application Number
- CN202420149533.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-22
AI Technical Summary
The existing smelting furnace dust removal equipment directly transports high-temperature flue gas to the dust collector, resulting in irreversible damage to the dust removal device, affecting its service life and increasing production costs.
A dust removal device for steelmaking furnaces was designed, using water pumps and spray head systems to spray water mist into high-temperature flue gas, which quickly cools through water mist and moistens and condenses large particles of dust, thereby reducing the flue gas temperature and filtering harmful gases. .
It effectively reduces the flue gas temperature, prevents high temperature from causing damage to the dust removal device, and extends the service life of the device. At the same time, it filters harmful gases through adsorption plates and activated carbon plates, protects the environment and saves energy and is environmentally friendly.
Smart Images
Figure CN222505016U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric furnace dust removal, and in particular relates to a dust removal device for a steelmaking furnace. Background Art
[0002] In the production of steel and other materials, smelting furnaces are often needed. Smelting furnaces are mainly used to melt carbon steel, alloy steel, special steel, and can also be used for melting and heating non-ferrous metals such as copper and aluminum. However, during the operation of the smelting furnace, a lot of smoke will be generated. The smoke contains iron oxide dust and coal gas, of which CO accounts for about 60% to 70%, and is close to 80% in a short period of time, followed by CO2, which accounts for about 10%. If these smoke are discharged directly, it will cause air pollution and is not conducive to energy conservation and emission reduction. Therefore, dust removal is required.
[0003] The existing smelting furnace dust removal equipment directly transports the flue gas above the smelting furnace to the dust collector for dust removal. Since the flue gas temperature can reach up to six thousand degrees, direct dust removal will cause irreversible damage to the dust removal device, affecting the service life of the dust removal device and increasing production costs. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a dust removal device for a steelmaking furnace, which solves the problem that the existing smelting furnace dust removal equipment directly transports the flue gas above the smelting furnace to the dust collector for dust removal. Since the flue gas temperature can reach up to six thousand degrees, direct dust removal will cause irreversible damage to the dust removal device and increase production costs.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dust removal device for a steelmaking furnace, comprising a shell and a water pump, the top surface of the shell is fixedly connected with a smoke outlet, the outer surface of the shell is provided with a smoke inlet, one end of the shell is fixedly connected with a dust removal groove, a movable sealing plate is movably installed inside the dust removal groove, a water adding pipe is fixedly installed on one side of the output end of the water pump, an input pipe is fixedly installed on one end of the water pump, a water dividing ball is fixedly installed on the other end of the input pipe, both ends of the water dividing ball are fixedly connected with straight pipes, a valve is movably installed on the outer surface of the straight pipe, and a water inlet pipe is fixedly installed on the other end of the straight pipe, a separation key is fixedly installed inside the shell, a separation block is fixedly installed inside the shell, an adsorption plate is fixedly installed inside the shell, an activated carbon plate is fixedly installed inside the shell, a bottom groove is opened at the bottom end of the shell, a motor is arranged at the axis of the bottom groove, and a scraper is fixedly installed at the output end of the motor.
[0006] Preferably, a fixing hole is circumferentially opened on the outer surface of the shell, a nozzle is fixedly installed inside the fixing hole, the nozzle passes through the fixing hole and extends into the interior of the shell, and the number of the nozzles is at least four.
[0007] By adopting the above technical solution, the advantage is that the smoke can be quickly cooled by the sprayed water mist. At the same time, the sprayed water mist can make some large dust particles moist, condense and increase, and separate from the smoke. The circularly installed nozzles can perfectly cover all positions to prevent dead corners inside and cause smoke to escape.
[0008] Preferably, the specifications and dimensions of the adsorption plate are matched with the specifications and dimensions of the shell, and the specifications and dimensions of the activated carbon plate are matched with the specifications and dimensions of the shell.
[0009] By adopting the above technical solution, the advantage is that the adsorption plate and the activated carbon plate can filter the harmful gases inside the smoke to prevent the harmful smoke from being discharged outdoors and affecting the surrounding environment.
[0010] Preferably, the dimensions of the scraper are matched with the dimensions of the bottom end inside the shell.
[0011] The above technical solution has the advantage of being more convenient for workers to clean the inside of the shell, while preventing dust from being retained inside the shell for a long time, which may cause dust crusting and make it difficult to clean.
[0012] Preferably, a water cooling pipe is fixedly installed inside the shell.
[0013] By adopting the above technical solution, the flue gas can be cooled for a second time, so that the flue gas temperature can be reduced to a specified temperature, thereby preventing the flue gas temperature from being too high and causing damage to the adsorption plate and the activated carbon plate. At the same time, the heat inside the flue gas can be taken out for reuse, which is energy-saving and environmentally friendly.
[0014] Preferably, a dust removal port is opened on the outer surface of the shell, a movable sealing plate is movably installed on the outer surface of the shell, and a dust removal groove is fixedly installed on the outer surface of the shell.
[0015] By adopting the above technical solution, the advantage is that when the movable sealing plate is closed, the high-temperature harmful smoke inside the device can be prevented from overflowing when it is working. After the movable sealing plate is opened, the dust deposited inside can be scraped into the dust removal trough by a scraper, and the dust can be manually cleaned into the container, which is convenient for the staff to clean the dust deposited inside.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. Through the scraper, dust removal port, movable sealing plate and dust removal groove, the rotation of the scraper drives the dust settled inside to the dust removal port, and the movable sealing port is opened. The internal dust can be removed into the container through tools, which is convenient for the staff to clean the dust inside the shell.
[0018] 2. Through the set valves, water inlet pipes, water cooling pipes, nozzles and water distribution balls, the water mist sprayed by the nozzles can quickly cool down the temperature of the flue gas, and at the same time take away the large particles of dust inside the flue gas for easy cleaning. The nozzles can conveniently control the amount of water sprayed.
[0019] 3. Through the adsorption plates and activated carbon plates, the toxic gases inside the flue gas cooled by water mist and water cooling pipes are filtered to prevent the toxic gases inside the flue gas from being brought into the air by the flue gas and affecting the surrounding environment.
[0020] 4. The flue gas is cooled for the second time through the water cooling pipe, so that the flue gas temperature is reduced to the specified temperature to prevent the adsorption plate and activated carbon plate from being damaged due to excessive flue gas temperature. At the same time, the heat inside the flue gas is taken out for reuse, which is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the casing axis of the utility model;
[0023] Figure 3 For the utility model Figure 2 The schematic diagram of the scraper module structure is enlarged at A in the middle.
[0024] In the figure: 1. Shell; 2. Smoke outlet; 3. Water inlet pipe; 4. Smoke inlet; 5. Movable sealing plate; 6. Dust removal trough; 7. Straight pipe; 8. Valve; 9. Water distribution ball; 10. Input pipe; 11. Fixing hole; 12. Water pump; 13. Water cooling pipe; 14. Separation block; 15. Nozzle; 16. Separation key; 17. Scraper; 18. Motor; 19. Bottom trough; 20. Dust removal port; 21. Adsorption plate; 22. Activated carbon plate; 23. Water supply pipe. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the implementation scheme of the utility model to clearly and completely describe the technical scheme in the implementation scheme of the utility model. Obviously, the described implementation scheme is only a part of the implementation scheme of the utility model, not all the implementation schemes. Based on the implementation scheme in the utility model, all other implementation schemes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0026] like Figure 1 - Figure 3As shown, a dust removal device for a steelmaking furnace comprises a shell 1 and a water pump 12, a smoke outlet 2 is fixedly connected to the top surface of the shell 1, a smoke inlet 4 is provided on the outer surface of the shell 1, a dust removal groove 6 is fixedly connected to one end of the shell 1, a movable sealing plate 5 is movably installed inside the dust removal groove 6, a water adding pipe 23 is fixedly installed on one side of the output end of the water pump 12, an input pipe 10 is fixedly installed on one end of the water pump 12, a water dividing ball 9 is fixedly installed on the other end of the input pipe 10, straight pipes 7 are fixedly connected to both ends of the water dividing ball 9, a valve 8 is movably installed on the outer surface of the straight pipe 7, a water inlet pipe 3 is fixedly installed on the other end of the straight pipe 7, a separator key 16 is fixedly installed inside the shell 1, a separator block 14 is fixedly installed inside the shell 1, an adsorption plate 21 is fixedly installed inside the shell 1, an activated carbon plate 22 is fixedly installed inside the shell 1, a bottom groove 19 is provided at the bottom end of the shell 1, a motor 18 is arranged at the axis of the bottom groove 19, and a scraper 17 is fixedly installed at the output end of the motor 18.
[0027] The working principle of the above technical solution is as follows: when the staff uses the device, first install the pipe of the smoke inlet 4 and the water cooling pipe 13, and then start to turn on the water pump 12 switch, and the cold water reaches the water distribution ball 9 through the input pipe 10, and reaches the water inlet pipe 3 at both ends of the straight pipe 7 through the water distribution ball 9, and reaches the nozzle 15 through the water inlet pipe 3, and is sprayed out through the nozzle 15. At this time, the smoke enters the shell 1, and the smoke temperature drops after being sprayed out by the nozzle 15. At the same time, the large particles of dust in the smoke begin to fall due to moisture, and the smoke reaches the upper nozzle 15 through the separation key 16 for secondary cooling, and then reaches the water through the separation block 14. The cold pipe 13 is cooled three times by the water-cooling pipe 13 to reach the specified temperature, and is discharged from the smoke outlet 2 after being filtered by the adsorption plate 21 and the activated carbon plate 22. When the dust is deposited to a certain extent at the bottom of the shell 1, the movable sealing plate 5 can be opened to discharge the dust deposited inside through the dust removal groove 6. Through the combination of the device, the problem of the existing smelting furnace dust removal equipment directly transporting the flue gas above the smelting furnace to the dust collector for dust removal is solved. Since the flue gas temperature can reach up to six thousand degrees, direct dust removal will cause irreversible damage to the dust removal device, affect the service life of the dust removal device, and increase the production cost.
[0028] In another embodiment, Figure 2 As shown, a fixing hole 11 is circumferentially opened on the outer surface of the shell 1, and a nozzle 15 is fixedly installed inside the fixing hole 11. The specifications and dimensions of the nozzle 15 are compatible with the specifications and dimensions of the fixing hole 11. The nozzle 15 passes through the fixing hole 11 and extends into the interior of the shell 1. The number of the nozzles 15 is at least four.
[0029] The smoke can be quickly cooled by the sprayed water mist. At the same time, the sprayed water mist can moisten the dust particles, condense and increase them, and separate them from the smoke. The circularly installed nozzles 15 can perfectly cover all positions to prevent dead corners inside from causing smoke to escape.
[0030] In another embodiment, Figure 2 As shown, the size of the adsorption plate 21 matches the size of the housing 1 , and the size of the activated carbon plate 22 matches the size of the housing 1 .
[0031] Filter harmful gases inside the smoke to prevent the harmful smoke from being discharged outdoors and affecting the surrounding environment.
[0032] In another embodiment, Figure 2 As shown, the dimensions of the scraper 17 are matched with the dimensions of the bottom end inside the housing 1 .
[0033] It is more convenient for the staff to clean the inside of the shell 1, and at the same time prevents the dust inside the shell 1 from being retained for a long time, resulting in dust crusting and being difficult to clean.
[0034] In another embodiment, Figure 2 As shown, a water cooling pipe 13 is fixedly installed inside the housing 1 .
[0035] The flue gas is cooled for the second time to reduce the flue gas temperature to a specified temperature to prevent the adsorption plate 21 and the activated carbon plate 22 from being damaged due to excessive flue gas temperature. At the same time, the heat inside the flue gas is taken out for reuse, which is energy-saving and environmentally friendly.
[0036] In another embodiment, Figure 1 As shown, a dust removal port 20 is provided on the outer surface of the shell 1 , a movable sealing plate 5 is movably mounted on the outer surface of the shell 1 , and a dust removal groove 6 is fixedly mounted on the outer surface of the shell 1 .
[0037] When the movable sealing plate 5 is closed, the high-temperature harmful smoke inside the device can be prevented from overflowing during operation. After the movable sealing plate 5 is opened, the dust deposited inside can be scraped into the dust removal tank 6 by the scraper 17, and the dust can be manually cleaned into the container, which is convenient for the staff to clean the dust deposited inside.
[0038] The working principle and use process of the utility model are as follows: when the staff uses the device, first install the pipe of the smoke inlet 4 and the water cooling pipe 13, and then start to turn on the water pump 12 switch, and the cold water reaches the water distribution ball 9 through the input pipe 10, and reaches the water inlet pipe 3 at both ends of the straight pipe 7 through the water distribution ball 9, and reaches the nozzle 15 through the water inlet pipe 3, and is sprayed out through the nozzle 15. At this time, the smoke enters the shell 1, and the smoke temperature drops after being sprayed out by the nozzle 15. At the same time, the large particles of dust inside the smoke begin to fall due to moisture, and the smoke reaches the upper nozzle 15 through the separation key 16 for secondary cooling, and then reaches the water through the separation block 14. The cold pipe 13 is cooled three times by the water-cooling pipe 13 to reach the specified temperature, and is discharged from the smoke outlet 2 after being filtered by the adsorption plate 21 and the activated carbon plate 22. When the dust is deposited to a certain extent at the bottom of the shell 1, the movable sealing plate 5 can be opened to discharge the dust deposited inside through the dust removal groove 6. Through the combination of the device, the problem of the existing smelting furnace dust removal equipment directly transporting the flue gas above the smelting furnace to the dust collector for dust removal is solved. Since the flue gas temperature can reach up to six thousand degrees, direct dust removal will cause irreversible damage to the dust removal device, affect the service life of the dust removal device, and increase the production cost.
[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A dust removal device for a steelmaking furnace, comprising a housing (1) and a water pump (12), characterized in that: The top surface of the shell (1) is fixedly connected to a smoke outlet (2), the outer surface of the shell (1) is provided with a smoke inlet (4), one end of the shell (1) is fixedly connected to a dust removal groove (6), a movable sealing plate (5) is movably installed inside the dust removal groove (6), a water supply pipe (23) is fixedly installed on one side of the output end of the water pump (12), an input pipe (10) is fixedly installed on one end of the water pump (12), a water distribution ball (9) is fixedly installed on the other end of the input pipe (10), both ends of the water distribution ball (9) are fixedly connected to straight pipes (7), and the straight pipes (7) are fixedly connected to the ends of the water distribution ball (9). A valve (8) is movably mounted on the outer surface, a water inlet pipe (3) is fixedly mounted on the other end of the straight pipe (7), a separator key (16) is fixedly mounted inside the shell (1), a separator block (14) is fixedly mounted inside the shell (1), an adsorption plate (21) is fixedly mounted inside the shell (1), an activated carbon plate (22) is fixedly mounted inside the shell (1), a bottom groove (19) is formed at the bottom end of the shell (1), a motor (18) is arranged at the axis of the bottom groove (19), and a scraper (17) is fixedly mounted on the output end of the motor (18).
2. A dust removal device for a steelmaking furnace according to claim 1, characterized in that: The outer surface of the shell (1) is provided with a fixing hole (11) in a circumferential manner, and a nozzle (15) is fixedly installed inside the fixing hole (11). The nozzle (15) passes through the fixing hole (11) and extends into the interior of the shell (1). The number of the nozzles (15) is at least four.
3. The dust removal device for a steelmaking furnace according to claim 1, characterized in that: The size of the adsorption plate (21) matches the size of the shell (1), and the size of the activated carbon plate (22) matches the size of the shell (1).
4. The dust removal device for a steelmaking furnace according to claim 1, characterized in that: The dimensions of the scraper (17) are compatible with the dimensions of the bottom end inside the housing (1).
5. The dust removal device for a steelmaking furnace according to claim 1, characterized in that: The outer surface of the shell (1) is provided with a dust removal port (20), the outer surface of the shell (1) is movably mounted with a movable sealing plate (5), and the outer surface of the shell (1) is fixedly mounted with a dust removal groove (6).
6. The dust removal device for a steelmaking furnace according to claim 1, characterized in that: A water cooling pipe (13) is fixedly installed inside the housing (1).