Converter flue gas dust removal and waste heat recovery device

Abstract

The utility model belongs to the field of flue gas treatment equipment, and specifically relates to a converter flue gas dust removal and waste heat recovery device. A driving motor is set to drive the impact cam to impact the filter plate, so that the filter plate vibrates, and at the same time, the thin rod penetrates and retracts under the action of the electric telescopic rod, and cooperates with the filter plate to effectively collect dust in the flue gas and dust attached to the filter object on the support plate, which provides convenience for operators to collect and process in a centralized manner. The filtered flue gas contains a large amount of waste heat, which is drawn out through the induced draft fan through the induced draft duct. The heat absorption water tank absorbs a large amount of heat energy from the flue gas during the process of the flue gas being drawn out, thereby heating the cold water in the heat absorption water tank, and fully and effectively utilizing the waste heat of the flue gas.

Description

Technical Field

[0001] The utility model belongs to the field of flue gas treatment equipment, and specifically relates to a converter flue gas dust removal and waste heat recovery device. Background Art

[0002] Converter steelmaking produces a large amount of flue gas, the temperature of which can be as high as 1500℃, and contains a large amount of moist heat. The main component of converter smoke is iron, which can be as high as 90%. Converter smoke cannot be discharged at will, because if it is allowed to disperse, it will cause serious pollution to the environment of hundreds of square kilometers around the factory. Therefore, it is necessary to remove the dust from the converter smoke before it is discharged. At the same time, since converter smoke has rich thermal energy, recycling the waste heat of converter smoke is also an important means to save energy and create profits.

[0003] At present, when the converter flue gas is subjected to dust removal treatment, filter plates, filter screens and other filter objects are usually used to filter the converter flue gas. However, when using filter plates, filter screens and other filter elements for filtering, the filter plates and filter screens will absorb a large amount of dust and other impurities, and part of the converter flue gas filtered out will adhere to the surface of the filter object, thereby affecting the filtering efficiency of the filter object.

[0004] Therefore, a converter flue gas dust removal and waste heat recovery device has been developed, which can timely clean the flue gas and dust adsorbed on the filter object, effectively collect and uniformly treat the dust, which improves the filtering effect of the filter object and makes it convenient for operators to centrally and safely handle impurities. Utility Model Content

[0005] In view of the problems of the prior art, the purpose of the utility model is to provide a converter flue gas dust removal and waste heat recovery device, which can timely and effectively clean impurities attached to the surface of the filter object while performing dust removal operations, thereby improving the filtration efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A converter flue gas dust removal and waste heat recovery device comprises a processing chamber, one side of the processing chamber is provided with an electric telescopic rod, the electric telescopic rod passes through the processing chamber, the telescopic end of the electric telescopic rod located inside the processing chamber is provided with a mounting plate surface, the mounting plate surface is provided with a plurality of penetrating thin rods, an air inlet pipe is provided on the other side of the processing chamber, a slag discharge port is provided below the air inlet pipe outside the processing chamber, a material guide plate is provided below the slag discharge port, the material guide plate is an inclined structure, the slag discharge port is movably connected with a sealing door, a driving motor is provided on the top of the processing chamber, the driving motor is connected with a rotating rod, the rotating rod passes through the processing chamber and extends into the interior , an impact cam is provided at the end of the rotating rod, and a connecting plate is provided on the inner wall of the processing chamber on the left side of the rotating rod, the inner wall of the processing chamber is movably connected to one end of the connecting plate, and a support plate is provided in the processing chamber below the slag discharge port, the support plate extends to be movably connected to the other end of the connecting plate, and a plurality of springs are provided on both sides of the movably connected connecting plate, the springs are connected with support blocks, one end of the support block is respectively connected to the inner wall of the processing chamber and the support plate, the support plate is in an inclined structure, the spring and the support block are located between the connecting plate and the rotating rod, and a filter hole is provided in the middle of the connecting plate, and the penetrating thin rod matches the filter hole.

[0008] Preferably, a water inlet pipe (6) and a water outlet pipe are arranged below the electric telescopic rod outside the treatment chamber, and electromagnetic valves (5) are arranged on the water inlet pipe and the water outlet pipe. A heat absorption water tank is arranged below the support plate inside the treatment chamber, and the water inlet pipe and the water outlet pipe both pass through the treatment chamber and are connected to the hot water washing tank.

[0009] Preferably, an induced draft fan is provided below the material guide plate outside the treatment chamber, the induced draft fan is connected to an induced draft duct, the induced draft duct runs through the treatment chamber and is arranged in a curve outside the heat absorption tank in the treatment chamber. The beneficial effects of the utility model are:

[0010] 1. The utility model discloses a converter flue gas dust removal and waste heat recovery device, in which a filter hole is arranged in the middle of a connecting plate, a plurality of springs are connected to the movable sides of the connecting plate, a support block is connected to the spring, a rotating rod passes through a processing chamber, a driving motor is installed on the rotating rod outside the processing chamber, and an impact cam is arranged on the internal rotating rod. During the dust removal operation, the rotating rod drives the impact cam to perform intermittent rotational motion under the action of the driving motor, and the rotating impact cam will hit the connecting plate. At this time, the back and forth expansion and contraction of the spring makes the connecting plate drive the filter hole to perform intermittent reciprocating motion, and the connecting plate will vibrate, thereby causing dust on the connecting plate and the filter hole to bounce off.

[0011] 2. The utility model provides a converter flue gas dust removal and waste heat recovery device. Under the action of a driving motor, an impact cam makes intermittent motion, so that the connecting plate drives the filter holes to move back and forth, thereby causing the dust on the filter holes to bounce off and fall onto the support plate. Since the support plate is an inclined structure, the dust will slide to the slag discharge port. The operator only needs to open the sealing door, and the dust will slide along the guide plate to the outside of the processing room, making it convenient for the operator to handle it in a centralized manner.

[0012] 3. The utility model provides a converter flue gas dust removal and waste heat recovery device. During the dust removal operation, the electric telescopic rod will extend outward, driving the mounting plate surface and the penetrating thin rod to move outward together. When the connecting plate and the filter hole are squeezed to the top by the spring under the action of the impact cam, the penetrating thin rod will be inserted into the filter hole set in the connecting plate, thereby pushing the dust, iron filings and other debris adsorbed in the filter hole to the support plate. The electric telescopic rod reciprocates back and forth and cooperates with the filter hole. Such a cyclic operation can effectively clean the dust accumulated in the filter hole, improve the filtering efficiency and utilization rate, and facilitate the operators to concentrate on handling dust.

[0013] 4. The utility model provides a converter flue gas dust removal and waste heat recovery device. The outer wall of the heat absorption water tank inside the processing chamber is connected with a curved induced draft duct. The curved induced draft duct increases the heating area of ​​the heat absorption water tank and can fully and effectively utilize the waste heat of the converter flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial structural schematic diagram of the utility model.

[0016] Figure 3 It is a partial structural schematic diagram of the utility model.

[0017] The meanings of the reference numerals in the figure are: 1. converter flue gas treatment chamber, 2. penetrating thin rod, 3. electric telescopic rod, 4. mounting panel, 5. electromagnetic valve, 6. water inlet pipe, 7. water outlet pipe, 8. heat absorption water tank, 9. impact cam, 10. support plate, 11. induced draft duct, 12. air inlet pipe, 13. sealing door, 14. slag discharge port, 15. guide plate, 16. induced draft fan, 17. driving motor, 18. rotating rod, 19. spring, 20. connecting plate, 21. filter plate, 22. support block, 23. filter hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 The utility model shown is a converter flue gas dust removal and waste heat recovery device, including a processing chamber 1, a driving motor 17 is arranged on the top outer side of the processing chamber 1, a rotating rod 18 is arranged on the driving motor 17, the rotating rod 18 passes through the processing chamber 1, and an impact cam 9 is arranged at the end of the rotating rod 18 inside the processing chamber 1, the inner wall of the processing chamber 1 is located on the left side of the rotating rod 18 and is movably connected with one end of a connecting plate 20, a support plate 10 is arranged below the slag discharge port 14 in the processing chamber 1, the support plate 10 extends to be movably connected with the other end of the connecting plate 20, a plurality of springs 19 are arranged on both sides of the movably connected connecting plate 20, the spring 19 is connected with a support block 22, one end of the support block 22 is respectively connected to the inner wall of the processing chamber 1 and the support plate 10, The spring 19 and the support block 22 are located between the connecting plate 20 and the rotating rod 18. The supporting plate 10 is in an inclined structure. A filter hole 21 is provided in the middle of the connecting plate 20. The penetrating thin rod 2 matches the filter hole 21. During the dust removal operation, the rotating rod 18 drives the impact cam 9 to perform intermittent rotational motion under the action of the driving motor 17. The rotating impact cam 9 will hit the filter plate 21. At this time, the spring 19 extends and squeezes the connecting plate 20 outward. The connecting plate 20 drives the filter hole 21 to move outward together. When the rotating impact cam 9 leaves the filter plate 21, the spring 19 contracts, driving the connecting plate 20 and the filter hole 21 to retract to the initial position, driving the filter hole 21 to vibrate once, so that the dust on the filter hole 21 is bounced off. The driving motor 17 moves uninterruptedly, and the rotating impact cam 9 will intermittently impact the connecting plate 20 and the filter hole 21. The springs 19 on both sides of the connecting plate 20 will intermittently expand and contract to make the connecting plate 20 move back and forth, so that the connecting plate 20 and the filter hole 21 will vibrate intermittently, effectively and timely shaking off the dust on the filter plate.

[0020] An electric telescopic rod 3 is provided on one side of the processing chamber 1, and the electric telescopic rod 3 passes through the processing chamber 1. The telescopic end of the electric telescopic rod 3 located inside the processing chamber is provided with a mounting plate surface 4, and the mounting plate surface 4 is provided with a plurality of penetrating thin rods 2, and the penetrating thin rods 2 match the filter holes 21. During the dust removal operation, the electric telescopic rod 3 will extend toward the direction of the connecting plate 20, driving the mounting plate surface 4 and the penetrating thin rods 2 to move together. At this time, when the connecting plate 20 and the filter hole 21 are squeezed to the top by the spring 19 under the action of the impact cam 9, the penetrating thin rod 2 will be inserted into the filter hole 21, effectively pushing the dust and other debris accumulated in the filter hole 21 to the support plate 10. When the rotating impact cam 9 leaves the filter hole 21, the spring 19 contracts, driving the connecting plate 20 to retract to the original position together with the filter hole 21. At this time, the electric telescopic rod 3 drives the penetrating thin rod 2 to retract to the original position together, and the penetrating thin rod 2 is separated from the filter hole 21. The electric telescopic rod 3 reciprocates back and forth, driving the penetrating thin rod 2 to extend and retract back and forth, driving the motor 17 to move uninterruptedly, and the rotating impact cam 9 will intermittently impact the connecting plate 20 and the filter hole 21, and the intermittent vibration of the filter hole 21 cooperates with the penetrating thin rod 2. Such a cyclic operation can effectively and timely clean the dust accumulated in the filter hole 21, improve the filtering efficiency of the filter plate, and facilitate the operators to concentrate on handling dust.

[0021] The processing chamber 1 is provided with a slag discharge port 14 below the air inlet pipe 12, and a guide plate 15 is provided below the slag discharge port 14. The guide plate 15 is an inclined structure, and the slag discharge port 14 is movably connected to a sealing door 13. Under the action of the driving motor 17, the impact cam 9 moves intermittently, and the connecting plate 20 drives the filter plate 21 to make a reciprocating motion, and the connecting plate 20 vibrates, so that the dust on the filter hole 21 falls onto the support plate 10. The electric telescopic rod 3 will extend toward the direction of the filter hole 21, driving the mounting plate surface 4 and the penetrating thin rod 2 to move together. When the connecting plate 20 and the filter hole 21 are squeezed to the top by the spring 19 under the action of the impact cam 9, the penetrating thin rod 2 will be inserted into the filter hole 21, effectively pushing the dust and other debris accumulated in the filter hole 21 onto the support plate 10. The dust that falls on the support plate 10 will slide to the slag discharge port 14 due to the inclination of the support plate 10. The operator only needs to open the sealing door 13, and the dust and iron filings will slide along the inclined guide plate 15 to the outside of the processing chamber 1, making it convenient for the operator to handle them in a centralized manner.

[0022] A water inlet pipe 6 and a water outlet pipe 7 are provided below the electric telescopic rod 3 outside the treatment chamber 1. Solenoid valves 5 are provided on the water inlet pipe 6 and the water outlet pipe 7. A hot water absorption tank 8 is provided below the support plate 10 inside the treatment chamber 1. The water inlet pipe 6 and the water outlet pipe 7 both penetrate the treatment chamber 1 and are connected to the hot water washing tank 8. An induced draft fan 16 is provided below the guide plate 15 outside the treatment chamber 1. The induced draft fan 16 is connected to an induced draft pipe 11. The induced draft pipe 11 penetrates the treatment chamber 1 and is arranged in a curve on the outer wall of the hot water washing tank 8 inside the treatment chamber 1. When starting the dust removal operation, cold water should be injected into the water inlet pipe 6 of the hot water absorption tank 8 in advance, the electromagnetic valve 5 should be closed, and then the dust removal operation should be started. During the dust removal operation, the induced draft fan 16 continuously draws out the flue gas in the treatment chamber 1. The induced draft duct 11 arranged in a curve on the outer wall of the hot water absorption tank 8 will increase the heating area of ​​the hot water absorption tank 8, and can fully and effectively utilize the waste heat of the converter flue gas. After the dust removal operation is completed, the water in the hot water absorption tank 8 can be discharged from the water outlet pipe 7 and used in useful places.

[0023] Before the dust removal operation begins, cold water is injected from the water inlet pipe 6 of the hot water absorption tank 8, the electromagnetic valve 5 is closed, and then the dust removal operation is started. At the same time, the drive motor 17, the electric telescopic rod 3 and the induced draft fan 16 are turned on, and untreated converter flue gas is injected from the air inlet pipe 12. The converter flue gas is filtered by the filter plate 21, and the induced draft fan 16 leads the filtered flue gas through the induced draft duct 11. During the process of the induced draft duct 11, the hot water absorption tank 8 fully absorbs the heat energy in the flue gas to heat the cold water in the hot water absorption tank 8. After the dust removal operation is completed, the operator can open the sealing door 13, and impurities such as dust will slide down the support plate 10 to the inspection port 14. The operator collects and processes them on the guide plate 15. At the same time, the operator can discharge the water in the hot water washing tank 8 from the water outlet pipe 7 and use it in an available place. The utility model discloses the dust collector can be used for filtering dust in the filter element by the filter element, and the dust collector can be used for filtering dust in the filter element by the filter element.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A converter flue gas dust removal and waste heat recovery device, characterized in that: The invention comprises a processing chamber (1), wherein an electric telescopic rod (3) is arranged on one side of the processing chamber (1), wherein the electric telescopic rod (3) passes through the processing chamber (1), and a mounting plate (4) is arranged at the telescopic end of the electric telescopic rod (3) located inside the processing chamber (1), wherein the mounting plate (4) is provided with a plurality of penetrating thin rods (2); an air inlet pipe (12) is arranged on the other side of the processing chamber (1), and a slag discharge port (14) is provided below the air inlet pipe (12) outside the processing chamber (1), and a material guide plate (15) is arranged below the slag discharge port (14), wherein the material guide plate (15) is of an inclined structure, and the slag discharge port (14) is movably connected to a sealing door (13); a driving motor (17) is arranged on the top of the processing chamber (1), wherein the driving motor (17) is connected to a rotating rod (18), wherein the rotating rod (18) passes through the processing chamber (1) and extends into the interior, and wherein the end of the rotating rod (18) is provided with An impact cam (9) is provided on the inner wall of the processing chamber (1) and is located on the left side of the rotating rod (18). The inner wall of the processing chamber (1) is movably connected to one end of the connecting plate (20). A support plate (10) is provided in the processing chamber (1) below the slag discharge port (14). The support plate (10) extends to be movably connected to the other end of the connecting plate (20). A plurality of springs (19) are provided on both sides of the movably connected connecting plate (20). The springs (19) are connected to support blocks (22). One end of the support block (22) is respectively connected to the inner wall of the processing chamber (1) and the support plate (10). The support plate (10) is in an inclined structure. The springs (19) and the support block (22) are located between the connecting plate (20) and the rotating rod (18). A filtering hole (21) is provided in the middle of the connecting plate (20). The penetrating thin rod (2) matches the filtering hole (21).

2. The converter flue gas dust removal and waste heat recovery device according to claim 1, characterized in that: A water inlet pipe (6) and a water outlet pipe (7) are arranged below the electric telescopic rod (3) outside the treatment chamber (1), and electromagnetic valves (5) are arranged on the water inlet pipe (6) and the water outlet pipe (7). A hot water absorption tank (8) is arranged below the support plate (10) inside the treatment chamber (1), and the water inlet pipe (6) and the water outlet pipe (7) both penetrate the treatment chamber (1) and are connected to the hot water washing tank (8).

3. The converter flue gas dust removal and waste heat recovery device according to claim 1, characterized in that: An induced draft fan (16) is arranged below the material guide plate (15) outside the treatment chamber (1), and the induced draft fan (16) is connected to an induced draft duct (11). The induced draft duct (11) passes through the treatment chamber (1) and is arranged in a curve outside the heat absorption tank (8) in the treatment chamber (1).

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