Intelligent blast furnace dust removal system

Abstract

The invention discloses an intelligent blast furnace dust removal system, and relates to the technical field of environmental protection equipment.The blast furnace dust removal system comprises a scrubber body and a gas inlet pipe, the side edge of the scrubber body is connected with the gas inlet pipe used for conveying dusty gas, the blast furnace dust removal system further comprises a washing unit, and the washing unit comprises a liquid conveying pipe; the side edge of the air inlet pipe is connected with a liquid conveying pipe, the end, located in the air inlet pipe, of the liquid conveying pipe is rotationally connected with a spraying pipe in a sealed mode, and a plurality of impellers are evenly arranged on the outer walls of the two ends of the spraying pipe in the circumferential direction of the spraying pipe. The dust-containing gas provides driving force for the impeller and the spraying pipe, so that the spraying pipe uniformly sprays the dust-containing gas; when dust-containing gas needs to be subjected to semi-fine dust removal treatment, the dust-containing gas in the gas inlet pipe blows the impeller to drive the spraying pipe to rotate, the washing liquid is sprayed into the gas inlet pipe through the spraying pipe, and the washing liquid is sprayed in all directions through the rotating spraying pipe, so that the spraying dust removal effect on the dust-containing gas is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental protection equipment, in particular to an intelligent blast furnace dust removal system. BACKGROUND

[0002] It is known that the blast furnace dust removal system is a key technical equipment for purifying high-temperature gas generated in the smelting process in the metallurgical industry. The system purifies the raw gas with a dust content of 40-100 g / m³ and a temperature of 150-300°C to below 10 mg / m³ through a multi-stage processing process. The core process includes three stages of coarse dust removal, semi-fine dust removal and fine dust removal. The coarse dust removal stage of the blast furnace dust removal system mostly uses a gravity dust collector to perform coarse dust removal treatment on the high-temperature gas, and then performs semi-fine dust removal treatment, the semi-fine dust removal performs semi-fine dust removal treatment on the gas through a scrubber, and finally performs fine dust removal treatment on the gas through an electric dust collector or a bag dust collector, etc., to achieve dust removal treatment on the high-temperature gas, so that the gas can meet the emission standard, thereby realizing dust removal and emission of the gas.

[0003] For example, the patent with the name of "Dust removal system for blast furnace" and the publication number of CN213739544U and the publication date of July 20, 2021 discloses a dust removal system for blast furnace, which relates to the technical field of charging of iron-making blast furnace, and achieves the purpose of reducing dust at the discharge place of the belt conveyor. The technical solution points of the patent are as follows: a support rod is arranged on one side of the main belt conveyor body, a closed cover is arranged on the support rod and covers the discharge of the main belt conveyor, the lower end of the closed cover extends to the vicinity of the material conveying of the main belt conveyor, an air extractor is arranged on the closed cover, the air inlet of the air extractor is communicated with the inside of the closed cover, the air outlet is connected with an exhaust pipe, and the exhaust pipe is connected with a dust removal device.

[0004] The existing technology has the following disadvantages: when the scrubber performs semi-fine treatment on the gas, the spray pipe inside the scrubber is fixedly arranged, and the conveying direction of the dust-containing gas in the inlet pipe is also fixed, so that the contact between the scrubbing liquid in the inlet pipe and the dust-containing gas is not complete, thereby affecting the reaction between the dust-containing gas and the scrubbing liquid, and affecting the dust removal effect of the dust-containing gas. SUMMARY

[0005] The present application aims to provide an intelligent blast furnace dust removal system to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kind of intelligent blast furnace dust removal system, including scrubber body and intake pipe, the side of the scrubber body is connected with the intake pipe for conveying dust-containing gas, further including scrubbing unit, the scrubbing unit includes infusion tube, the side of the intake pipe is connected with infusion tube, infusion tube is located in the inside one end of intake pipe rotationally sealed connection has spray pipe, the outer wall of the two end portions of the spray pipe is uniformly provided with multiple impellers along its circumferential direction, impeller and spray pipe are provided with driving force by dust-containing gas to realize the uniform spraying of spray pipe to dust-containing gas.

[0007] The above-mentioned infusion tube is located at one side of the outside of the intake pipe and is provided with an infusion valve.

[0008] The above-mentioned intake pipe is provided with a contraction section in the middle portion, the contraction section is contracted to the inside of the intake pipe, a sliding rod is slidingly and sealingly installed at the bottom of the intake pipe, a throat pipe is installed at the top of the sliding rod, and the throat pipe and the contraction section are mutually adapted.

[0009] The above-mentioned scrubber body is provided with a through groove at the side, a baffle is slidingly and sealingly installed in the through groove, the baffle is connected with a straight plate at one end outside the scrubber body, and the straight plate and the end portion of the sliding rod are mutually connected.

[0010] The above-mentioned straight plate and the intake pipe are connected by a first elastic member.

[0011] The above-mentioned baffle is connected with a floating plate at one end inside the scrubber body, a connecting rod is provided on the floating plate, and a floating ball floating on the surface of the scrubbing liquid is connected at the end portion of the connecting rod.

[0012] The above-mentioned outer wall of the spray pipe is uniformly provided with multiple spray holes along the circumferential direction thereof.

[0013] The above-mentioned scrubber body is provided with an exhaust pipe at the top portion, and a one-way valve is provided in the exhaust pipe.

[0014] The above-mentioned intake pipe and the scrubber body are provided with an auxiliary plate at the connecting position, the auxiliary plate is provided with an inclined surface, and the inclined surface is downwardly inclined from one end away from the scrubber body to one end close to the scrubber body.

[0015] The above-mentioned auxiliary plate is provided with an auxiliary groove, a partition plate is connected at the top portion of the baffle, and the partition plate and the auxiliary groove are mutually adapted.

[0016] The beneficial effects of this invention are as follows: When semi-fine dust removal treatment is required for dust-laden gas, the dust-laden gas is transported to the inlet pipe by a fan. The dust-laden gas in the inlet pipe blows the impeller to drive the spray pipe to rotate. Simultaneously, the washing liquid is transported to the delivery pipe by a pump. The washing liquid in the delivery pipe is sprayed into the inlet pipe through the spray pipe. The rotating spray pipe sprays the washing liquid in all directions, thereby enabling the washing liquid to perform all-round spraying and settling treatment on the dust-laden gas, thus improving the spraying dust removal effect on the dust-laden gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a partial three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of the axial cross-sectional structure of the washer body and the air inlet pipe.

[0020] Figure 3 For the present invention Figure 1 A schematic diagram of the axial cross-sectional structure of the spray pipe and sliding rod;

[0021] Figure 4 For the present invention Figure 2 A partial enlarged cross-sectional structural diagram at point M;

[0022] Figure 5 A partial cross-sectional structural schematic diagram of another embodiment of the present invention is provided;

[0023] Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged cross-sectional structure at point N;

[0024] Figure 7 This is a partial cross-sectional structural schematic diagram of another embodiment of the present invention;

[0025] Figure 8 This is a partial cross-sectional structural diagram of the infusion tube, infusion valve, and driven gear of the present invention;

[0026] Figure 9 This is a partial cross-sectional structural diagram of the spray pipe and impeller positions of the present invention;

[0027] Figure 10This is a partial cross-sectional structural diagram of the driven gear, driven rod, and tooth positions of the present invention;

[0028] Figure 11 This is a partial cross-sectional structural diagram of the slot and baffle positions of the present invention;

[0029] Figure 12 For the present invention Figure 2 A partial enlarged cross-sectional structural diagram at point P;

[0030] Figure 13 This is a partial three-dimensional structural diagram of the circular frame and the bent plate inside the main body of the washer of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Washer body; 2. Air inlet pipe; 3. Infusion pipe; 4. Spray pipe; 5. Impeller; 6. Exhaust pipe; 7. Infusion valve; 8. Contraction section; 9. Sliding rod; 10. Throat; 11. Through groove; 12. Baffle; 13. Straight plate; 14. First elastic element; 15. Float plate; 16. Connecting rod; 17. Float ball; 18. Auxiliary plate; 19. Auxiliary groove; 20. Partition plate; 21. Driven gear; 22. Passive rod; 23. Tooth; 24. Square plate; 25. Groove; 26. Locking rod; 27. Second elastic element; 28. Flat plate; 29. ​​Flat groove; 30. Unlocking block; 31. Driving element; 32. Circular frame; 33. Bending plate; 34. Dust collection plate; 35. Swinging rod; 36. Swinging screen; 37. Brush; 38. Through groove; 39. Driven shaft; 40. Driven gear; 41. Clamping plate; 42. Driven circular plate; 43. Third elastic element; 44. Sealing plate; 45. Driven rack; 46. Straight rod. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 13 The present invention will now be described in further detail.

[0034] One embodiment of the present invention relates to an intelligent blast furnace dust removal system, including a scrubber body 1 and an air inlet pipe 2. The side of the scrubber body 1 is connected to the air inlet pipe 2 for conveying dust-laden gas. The system also includes a scrubbing unit, which includes a liquid delivery pipe 3. The side of the air inlet pipe 2 is connected to the liquid delivery pipe 3. One end of the liquid delivery pipe 3 is rotatably and sealed to a spray pipe 4 inside the air inlet pipe 2. Multiple impellers 5 are evenly arranged on the outer wall of both ends of the spray pipe 4 along its circumferential direction. The dust-laden gas provides a driving force to the impellers 5 and the spray pipe 4 to achieve uniform spraying of the dust-laden gas by the spray pipe 4.

[0035] Specifically, the core process of the blast furnace dust removal system consists of three stages: coarse dust removal, semi-fine dust removal, and fine dust removal. In the semi-fine dust removal process, a scrubber is used to treat the dust-laden gas. The scrubber body 1 is a container for washing and settling the dust-laden gas. An exhaust duct 6 is installed at the top of the scrubber body 1, and a one-way valve (not shown in the figure) is installed inside the exhaust duct 6. An air inlet pipe 2 is connected to the side wall of the scrubber body 1, and a liquid delivery pipe 3 is connected to the air inlet pipe 2. A liquid delivery valve 7 is installed on the outside of the liquid delivery pipe 3. A spray pipe 4 is rotatably sealed at one end of the liquid delivery pipe 3 inside the air inlet pipe 2. Along its circumference, the outer wall of the spray pipe 4... Multiple spray holes are evenly arranged in the direction of the spray pipe 4. Multiple impellers 5 are evenly arranged circumferentially at both ends of the spray pipe 4. When semi-fine dust removal treatment of the dust-laden gas is required, the infusion valve 7 is opened to open the infusion pipe 3. The infusion valve 7 is a device that controls the opening and closing of various fluids such as gases or liquids. The opening and closing of the infusion pipe 3 by the infusion valve 7 is common knowledge in the art and will not be elaborated upon. The dust-laden gas is transported into the inlet pipe 2 by a fan (a fan is a machine that increases gas pressure and discharges gas by relying on input mechanical energy). The fan (not shown in the figure) transporting the dust-laden gas is common knowledge in the art and will not be elaborated upon. The dust-laden gas blows the impellers 5. Impeller 5 rotates under the influence of wind. The design of impeller 5 allows wind to drive its rotation, and the kinetic energy of this rotation is transferred to spray pipe 4. This causes the dust-laden gas in the inlet pipe 2 to blow the impeller 5, driving the spray pipe 4 to rotate. Simultaneously, as the dust-laden gas enters the inlet pipe 2, the pump body (a machine for transporting fluids) delivers the washing liquid to the delivery pipe 3. The pump body (not shown in the figure) delivering the washing liquid is common knowledge in the field and will not be elaborated upon. The washing liquid in the delivery pipe 3 is sprayed into the inlet pipe 2 through the spray holes on the spray pipe 4. The rotating spray pipe 4 and the spray holes provide a comprehensive spraying operation for the washing liquid. The washing liquid sprayed into the nozzles can fully contact the dust-laden gas, allowing for comprehensive spraying and settling treatment, thus improving the dust removal effect. The sprayed liquid flows into the scrubber body 1 along the inlet pipe 2, and the washed gas is discharged from the scrubber body 1 through the exhaust pipe 6. The one-way valve (a device that allows gas to flow in one direction) in the exhaust pipe 6 ensures that the gas can only be discharged from the scrubber body 1, preventing external gas from entering the scrubber body 1 and thus preventing the external gas from mixing with the clean gas inside the scrubber body 1, thereby improving the dust removal effect.

[0036] The shortcoming of the existing technology is that when the scrubber performs semi-fine treatment on the coal gas, the spray pipe 4 inside the scrubber is fixed, and the direction of conveying the dust-laden gas in the air inlet pipe 2 is also fixed. This results in incomplete contact between the scrubbing liquid and the dust-laden gas in the air inlet pipe 2, which affects the incomplete reaction between the dust-laden gas and the scrubbing liquid, thus affecting the dust removal effect of the dust-laden gas.

[0037] The beneficial effects of this embodiment are as follows: when semi-fine dust removal treatment is required for dust-laden gas, the dust-laden gas is transported to the inlet pipe 2 by a fan. The dust-laden gas in the inlet pipe 2 blows the impeller 5 to drive the spray pipe 4 to rotate. Simultaneously, the washing liquid is transported to the delivery pipe 3 by a pump. The washing liquid in the delivery pipe 3 is sprayed into the inlet pipe 2 through the spray pipe 4. The rotating spray pipe 4 sprays the washing liquid in all directions, so that the washing liquid can spray and settle the dust-laden gas in all directions, thereby improving the spray dust removal effect of the dust-laden gas.

[0038] In another embodiment of the present invention, a constriction section 8 is provided in the middle of the air intake pipe 2, the constriction section 8 constricts towards the inside of the air intake pipe 2, a sliding rod 9 is slidably sealed at the bottom of the air intake pipe 2, a throat 10 is installed at the top of the sliding rod 9, and the throat 10 and the constriction section 8 are partially adapted to each other; a through groove 11 is opened on the side of the washer body 1, a baffle 12 is slidably sealed in the through groove 11, a straight plate 13 is connected to one end of the baffle 12 outside the washer body 1, the straight plate 13 and the end of the sliding rod 9 are connected to each other; the straight plate 13 and the air intake pipe 2 are connected by a first elastic member 14; a float plate 15 is connected to one end of the baffle 12 inside the washer body 1, a connecting rod 16 is provided on the float plate 15, and a float ball 17 floating on the surface of the washing liquid is connected to the end of the connecting rod 16.

[0039] Specifically, when dust-laden gas enters the inlet pipe 2 and is sprayed by the washing liquid from the spray pipe 4, the dust-laden gas and washing liquid fall together into the constriction section 8 of the inlet pipe 2. The washing liquid and dust-laden gas then fall onto the throat pipe 10. As the cross-sectional area of ​​the throat pipe 10 decreases, the flow velocity of the dust-laden gas increases. The strong shearing force shears the gas and liquid (i.e., the dust-laden gas and washing liquid) into fine water mist. When this water mist enters the scrubber body 1, it settles and separates due to gravity, flowing to the bottom of the scrubber body 1. The scrubber body 1 stores a large amount of washing liquid and dust-laden water mist. The particles in the dust-laden water mist settle into the washing liquid. At the bottom of the liquid, a check valve (a device that allows fluid to flow only through the inlet and prevents backflow of the outlet medium) is installed at the bottom of the washer body 1. This check valve allows the washing liquid to flow out from the bottom of the washer body 1, causing the washing liquid and settled particles to slowly flow out. This provides buoyancy to the float 17 (a foam-made device that floats on the liquid surface) within the washer body 1. The buoyancy of the float 17 provides force to the float plate 15 and the baffle 12, enabling the baffle 12 to perform a sliding seal on the through groove 11. Furthermore, the baffle 12 drives the straight plate 13 to act on the first elastic element 14 (a device capable of telescoping and resetting). A spring (preferably) applies a compressive force to the first elastic element 14, causing it to be in a compressed state. When a significant amount of washing liquid accumulates inside the washer body 1, the liquid level rises accordingly. The buoyancy of the washing liquid, through the float ball 17, drives the float plate 15 and the baffle 12 towards the top of the washer body 1. The baffle 12 slides towards the top of the washer body 1 within the channel 11, ensuring that the baffle 12 still seals the channel 11. The baffle 12 drives the straight plate 13 towards the top of the washer body 1, and the straight plate 13 compresses the first elastic element 14. Simultaneously, the straight plate 13 drives the sliding rod 9 towards the top of the washer body 1, and the sliding rod 9 drives the throat 10 towards the top of the washer body 1, causing the throat... The gap between the constriction section 8 in the middle of the pipe 10 and the air inlet pipe 2 decreases, which reduces the cross-sectional area of ​​the dust-laden gas and washing liquid entering the scrubber body 1 from the constriction section 8 and the throat pipe 10 in the air inlet pipe 2. This reduces the amount of dust-laden gas and washing liquid transported into the scrubber body 1. As the amount of washing liquid inside the scrubber body 1 gradually increases, the discharge pressure at the bottom of the scrubber body 1 increases, thereby increasing the rate at which the washing liquid is discharged from the bottom of the scrubber body 1. When the discharge volume of the washing liquid at the bottom of the scrubber body 1 increases, the liquid level inside the scrubber body 1 decreases accordingly, causing the float ball 17 and the float plate 15 to slide towards the bottom end of the scrubber body 1. Under the rebound action of the first elastic element 14,The straight plate 13 drives the sliding rod 9 to move towards the bottom end of the washer body 1. The sliding rod 9 drives the throat tube 10 to move towards the bottom end of the washer body 1, increasing the gap between the throat tube 10 and the constriction section 8 in the middle of the air inlet tube 2. This increases the gap between the constriction section 8 of the air inlet tube 2 and the throat tube 10, thus increasing the cross-sectional area of ​​the air inlet tube 2 entering the washer body 1 from the gap between the constriction section 8 and the throat tube 10. This results in more dust-laden gas and washing liquid entering the washer body 1 through the air inlet tube 2. In this way, the level of the washing liquid inside the washer body 1 can be monitored by the float 17, thereby adjusting the level of dust-laden gas and washing liquid in the air inlet tube 2. The volume of washing liquid entering the scrubber body 1 is matched with the amount of washing liquid inside the scrubber body 1 and the volume of dust-laden gas and washing liquid entering the scrubber body 1 in the air inlet pipe 2, thereby improving the dust removal effect of the dust-laden gas and washing liquid. As those skilled in the art will know, by matching the number of floats 17 inside the scrubber body 1 with the buoyancy provided by the washing liquid to the floats 17, the buoyancy provided by the washing liquid to the floats 17 is matched with the impact force of the dust-laden gas and washing liquid on the first elastic member 14 and the throat 10, thereby improving the stability of the gap size between the throat 10 and the constriction section 8 of the air inlet pipe 2.

[0040] Preferably, an auxiliary plate 18 is provided at the connection position between the air intake pipe 2 and the washing machine body 1. The auxiliary plate 18 is provided with an inclined surface, which slopes downward from the end away from the washing machine body 1 to the end closer to the washing machine body 1. An auxiliary groove 19 is provided on the auxiliary plate 18. A partition 20 is connected to the top of the baffle 12. The partition 20 and the auxiliary groove 19 are adapted to each other.

[0041] Specifically, during the process of the washing liquid and dust-laden gas flowing into the scrubber body 1 from the air inlet pipe 2, the washing liquid and dust-laden gas enter the scrubber body 1 along the inclined surface of the auxiliary plate 18. The inclined surface of the auxiliary plate 18 guides the washing liquid and dust-laden gas, allowing them to enter the scrubber body 1. Due to gravity, the dust-laden water mist settles and falls into the scrubber body 1, causing the settled particles within the water mist to fall into the scrubber body 1. When the settled particles inside the scrubber body 1 accumulate at the liquid outlet (i.e., the aforementioned check valve) of the scrubber body 1, the settled particles impact the scrubber body 1. The outlet of the washing machine is blocked, preventing the washing liquid accumulated inside the washing machine body 1 from draining out. This causes the level of the washing liquid inside the washing machine body 1 to gradually rise. The washing liquid provides buoyancy to the float 17. As the level of the washing liquid rises, the float 17 moves towards the top of the washing machine body 1. The float 17, through the connecting rod 16 and the float plate 15, drives the baffle 12 to slide along the trajectory of the through groove 11 towards the top of the washing machine body 1. The baffle 12 drives the partition 20 to slide towards the top of the washing machine body 1. The gap between the partition 20 and the auxiliary plate 18 decreases, making the partition 20... The reduced cross-sectional area between the baffle plate 20 and the auxiliary plate 18 increases the flow velocity of the dust-laden gas. The strong shearing force shears the gas and liquid (i.e., the dust-laden gas and the washing liquid) into fine water mist. Upon entering the scrubber body 1, the dust-laden water mist settles and separates due to gravity, flowing to the bottom of the scrubber body 1. The baffle plate 20 and the auxiliary plate 18 perform secondary shearing of the gas and liquid, thereby improving the dust removal effect of the washing liquid on the dust-laden gas. This continues until the baffle plate 20 and the auxiliary groove 19 on the auxiliary plate 18 come into contact with each other. At this point, the baffle plate 20 and the auxiliary plate 18 seal the air inlet pipe 2. Simultaneously, the baffle plate 12 drives the straight plate 13 towards the top of the scrubber body 1. With one end moving, the straight plate 13 drives the throat 10 to move towards the top end of the scrubber body 1 via the sliding rod 9, thereby reducing the gap between the throat 10 and the constriction section 8 of the air inlet pipe 2. Simultaneously, the straight plate 13 squeezes the first elastic element 14. When the partition plate 20 and the auxiliary plate 18 seal the air inlet pipe 2, the throat 10 seals the constriction section 8 of the air inlet pipe 2, so that no dust-laden gas or washing liquid enters the scrubber body 1 from the air inlet pipe 2. This allows maintenance personnel to clear blockages inside the scrubber body 1, thereby enabling the scrubber body 1 and the air inlet pipe 2 to perform stable dust removal operations on the dust-laden gas.When the blockage at the outlet of the washer body 1 is cleared, under the rebound action of the first elastic element 14, the first elastic element 14 drives the baffle 12 towards the bottom end of the washer body 1 via the straight plate 13. The baffle 12 drives the float ball 17 to float on the surface of the washing liquid via the connecting rod 16 and the float plate 15. The baffle 12 drives the partition 20 away from the auxiliary plate 18, so that the partition 20 opens the air inlet pipe 2. Simultaneously, the baffle 12 drives the throat 10 away from the constriction section 8 of the air inlet pipe 2 via the sliding rod 9, so that the throat 10 opens to the position of the constriction section 8 of the air inlet pipe 2, allowing the washing liquid and dust-laden gas to continue dust removal.

[0042] Preferably, the infusion valve 7 is provided with a driven gear 21 at one end of the infusion tube 3, and a passive rod 22 is installed on the outside of the straight plate 13. A plurality of teeth 23 are evenly arranged on the passive rod 22, and each tooth 23 is meshed with the driven gear 21. The teeth 23 are a certain distance away from the top end of the passive rod 22.

[0043] Specifically, when the settled particles clog the outlet of the washer body 1, the liquid level of the washing liquid inside the washer body 1 gradually rises. The float 17, affected by the rising liquid level, moves towards the top of the washer body 1. The float 17, through the connecting rod 16 and the float plate 15, drives the baffle 12 to slide along the trajectory of the through groove 11 towards the top of the washer body 1. The baffle 12 drives the straight plate 13 to move towards the top of the washer body 1. The straight plate 13 drives the driven rod 22 to move towards the top of the washer body 1. When the baffle 12 drives the partition 20 to slide to the opening of the auxiliary groove 19, the teeth 23 on the driven rod 22 and the driven gear 21 mesh with each other. The baffle 12 continues to drive the partition 20 to slide into the auxiliary groove 19 until the baffle 12 reaches the top of the auxiliary groove 19. When the inner walls of the washing machine body 1 are pressed together, the passive rod 22 drives the driven gear 21 to rotate 90 degrees through the teeth 23, which in turn drives the infusion valve 7 to rotate 90 degrees, thus closing the infusion tube 3. When the blockage at the outlet of the washing machine body 1 is cleared, the first elastic element 14, under the rebound action, drives the baffle 12 to move towards the bottom end of the washing machine body 1 through the straight plate 13. The baffle 12 drives the partition 20 to slide out from the auxiliary plate 18. Simultaneously, the baffle 12 drives the passive rod 22 to move towards the bottom end of the washing machine body 1 through the straight plate 13. The passive rod 22 drives the driven gear 21 to rotate 90 degrees through the teeth 23, which in turn drives the infusion valve 7 to rotate 90 degrees, thus opening the infusion tube 3.

[0044] In another embodiment of the present invention, a square plate 24 is provided on the side wall of the washing machine body 1 at the top of the through groove 11. A groove 25 is provided on the square plate 24. A locking rod 26 is slidably installed in the groove 25. The locking rod 26 and the inner wall of the groove 25 are connected by a second elastic member 27. A flat plate 28 is provided on the straight plate 13. A flat groove 29 is provided on the flat plate 28. An unlocking block 30 is slidably installed in the flat groove 29. The unlocking block 30 and the inner wall of the flat groove 29 are connected by a driving member 31.

[0045] Specifically, when the settled particles clog the outlet of the washer body 1, the liquid level of the washer body 1 gradually rises. The float 17, affected by the rising liquid level, moves towards the top of the washer body 1. The float 17, through the connecting rod 16 and the float plate 15, drives the baffle 12 to slide along the path of the through groove 11 towards the top of the washer body 1. The baffle 12 then drives the partition 20 to slide into the auxiliary groove 19, causing each auxiliary plate 18 of the partition 20 to seal the air inlet pipe 2. The baffle 12 then drives the straight plate 13 towards the top of the washer body 1. The straight plate 13, through the driven rod 22 and the teeth 23, drives the driven gear 21 and the infusion valve 7 to rotate 90 degrees, causing the infusion valve 7 to close the infusion pipe 3. In closed operation, simultaneously, the straight plate 13 drives the throat 10 towards the top of the scrubber body 1 via the sliding rod 9, sealing the constriction section 8 of the air inlet pipe 2. Since the force provided by the baffle 12 for the straight plate 13 to move towards the top of the scrubber body 1 comes from the buoyancy of the washing liquid on the float 17, and this buoyancy is not stable enough, after the worker clears the blockage at the outlet of the scrubber body 1, the washing liquid flows out. Under the rebound action of the first elastic element 14, the straight plate 13 and the baffle 12 will quickly slide towards the bottom of the scrubber body 1, allowing dust-laden gas and washing liquid to continue to enter from the air inlet pipe 2. When the worker clears the blockage at the outlet of the scrubber body 1, the straight plate 13 needs to... Since the baffle 12 is always at a high position, in this embodiment, as the float 17 moves the baffle 12 towards the top of the washer body 1 via the float 15, the baffle 12 moves the flat plate 28 towards the top of the washer body 1 via the straight plate 13. This continues until the straight plate 13 moves the partition 20 into the auxiliary groove 19. Then, the straight plate 13 moves the flat plate 28 to the locking rod 26 position. Under the elastic force of the second elastic element 27 (which is a retractable and repositionable element, preferably a spring), the locking rod 26 extends into the flat groove 29 on the flat plate 28, causing the locking rod 26 to abut against the unlocking block 30. This allows the locking rod 26 to lock the flat plate 28 and the straight plate 13 as the partition 20 slides into the auxiliary groove 19. During the positioning process, even after the blockage at the outlet of the washer body 1 is cleared, the straight plate 13 and the partition 20 will not slide to the bottom of the washer body 1. When the blockage at the outlet of the washer body 1 is cleared, the straight plate 13 and the partition 20 need to slide the float ball 17 to the liquid surface position via the float plate 15. At this time, the drive component 31 (the drive component 31 is a device that can perform linear reciprocating motion at the output end, preferably a cylinder) is activated to drive the unlocking block 30 to slide along the trajectory of the flat groove 29 until the unlocking block 30 pushes the locking rod 26 out of the flat groove 29. The flat plate 28 loses the limitation of the locking rod 26. Under the rebound action of the first elastic element 14, the first elastic element 14 provides the straight plate 13 with the ability to slide towards the bottom of the washer body 1.This causes the straight plate 13 to move the float 17 to the surface of the washing liquid via the float plate 15, ensuring that the float 17, the surface of the washing liquid, and the intake volume of the washing liquid and dust-laden gas are mutually compatible.

[0046] In another embodiment of the present invention, a circular frame 32 is installed inside the washing machine body 1 at the top of the air inlet pipe 2. Multiple bent plates 33 are evenly installed inside the circular frame 32 from the end near the air inlet pipe 2 to the end away from the air inlet pipe 2. The top and bottom of each bent plate 33 are vertical sections, and the middle section of each bent plate 33 is an arc section. A dust collection plate 34 is provided at the connection position between the arc section and the vertical section at the top of each bent plate 33. A swing rod 35 is rotatably installed at the end of each dust collection plate 34. A swing screen 36 is provided on each swing rod 35. A torsion spring is provided between each of the two ends of each swing rod 35 and its corresponding dust collection plate 34. A brush 37 is provided at the end of each swing screen 36. A demisting plate is provided at the top of the washing machine body 1.

[0047] Specifically, when the dust-laden gas and washing liquid flow into the scrubber body 1 through the gap between the partition plate 20 and the auxiliary plate 18, the dust-laden water mist settles and separates under gravity, flowing to the bottom of the scrubber body 1. The scrubber body 1 contains a large amount of washing liquid and dust-laden water mist. The particles in the dust-laden water mist settle to the bottom of the washing liquid, while some fine dust particles float to the top of the scrubber body 1. When the dust particles move to the gap between the bending plates 33... Subsequently, the dust particles and water mist are blocked by the oscillating screen 36. The dust particles and water mist drive the oscillating rod 35 and the oscillating screen 36 to oscillate. Simultaneously, under the action of the torsion spring (not shown in the figure), the oscillating rod 35 and the oscillating screen 36 reciprocate on the bending plate 33 under the blowing action of the dust particles and water mist. This allows the dust collecting plate 34 to collect the dust-containing particles in the dust particles and water mist. Under the reciprocating oscillation of the oscillating screen 36, the dust particles and water mist condense at the position of the dust collecting plate 34. The water droplets condense at the bends of the dust collection plate 34, agglomerating the dust particles. This allows the condensed water droplets to flow back into the washer body 1, thus removing dust particles and water mist. After being removed, the dust particles and water mist condense into droplets and fall into the washing liquid within the washer body 1. Meanwhile, the gas inside the washer body 1 passes through a demister (not shown in the figure). The demister removes water mist and reduces the pressure of the gas on the washer body 1, resulting in a cleaner product. The purified gas is discharged through the exhaust pipe 6. During the reciprocating swing of the oscillating screen 36, the oscillating screen 36 drives the brush 37 to reciprocate, so that the brush 37 can clean the outer wall of the bending plate 33. The brush 37 can also clean the dust collection plate 34 to prevent a large amount of dust particles from accumulating inside the dust collection plate 34. This allows the dust collection plate 34 to collect and condense dust particles, improving the stability of the dust collection plate 34 in collecting dust particles from the water mist.

[0048] In another embodiment of the present invention, a through groove 38 is provided at the vertical position of the bottom of each of the bending plates 33, and a driven shaft 39 is rotatably installed at the connection position of the vertical part and the arc part at the bottom of each of the bending plates 33. A driven gear 40 is provided in the middle of each of the driven shafts 39, and a retaining plate 41 is provided at both ends of each of the driven shafts 39. A driven circular plate 42 is slidably installed at the bottom of the circular frame 32 inside the washing machine body 1. The driven circular plate 42 and the circular frame 32 are connected by a plurality of evenly arranged third springs. The passive circular plate 42 is connected to the passive component 43. Multiple sealing plates 44 are evenly connected to the top of the passive circular plate 42. A connecting groove is opened on the part of the passive circular plate 42 between two sealing plates 44. Each sealing plate 44 is slidably and sealingly disposed in the through groove 38. Each sealing plate 44 is provided with a passive rack 45 on its top. Each passive rack 45 is slidably and sealingly disposed in the through groove 38. Each passive rack 45 is meshed with its corresponding passive gear 40. The passive circular plate 42 and the float 17 are connected by a straight rod 46.

[0049] Specifically, when the dust-laden gas and washing liquid flow into the scrubber body 1 through the gap between the partition plate 20 and the auxiliary plate 18, the dust-laden water mist settles and separates under gravity, flowing to the bottom of the scrubber body 1. The scrubber body 1 contains a large amount of washing liquid and dust-laden water mist. The particles in the dust-laden water mist settle to the bottom of the washing liquid, while some fine dust particles float to the top of the scrubber body 1. When the dust particles move to the position of the passive circular plate 42, they enter the gap between the two sealing plates 44 through the connecting groove on the passive circular plate 42, causing the dust... The particulate water mist can enter the bent plate 33 from the sealing plate 44. When the particulate water mist moves to the clamping plate 41, the clamping plate 41 will condense the dust particles in the dust-laden water mist. Simultaneously, under the buoyancy of the washing liquid, the float 17 pushes the passive circular plate 42 towards the top end of the washer body 1 via the straight rod 46. The passive circular plate 42 is blown towards the top end of the washer body 1 by the dust-laden water mist, and the passive circular plate 42 squeezes the third elastic element 43 (the third elastic element 43 is an element that can extend and return to its original position, preferably a spring). The third elastic element 43 is under pressure. In the compressed state, synchronously, the passive circular plate 42 drives the sealing plate 44 to move towards the top end of the washer body 1. The sealing plate 44 drives the passive rack 45 to move towards the top end of the washer body 1. Due to the meshing between the passive rack 45 and the passive gear 40, the passive rack 45 drives the passive gear 40 to rotate. The passive gear 40 drives the driven shaft 39 to rotate. The driven shaft 39 drives the clamping plate 41 to rotate. After the third elastic element 43 presses to a certain position, the third elastic element 43 pushes the passive circular plate 42 to move towards the bottom end of the washer body 1. The passive circular plate 42 drives the sealing plate 44 towards the top end of the washer body 1. When the bottom end of the main body 1 moves, the sealing plate 44 drives the passive rack 45 to move towards the bottom end of the main body 1. The passive rack 45 drives the passive gear 40 to rotate, the passive gear 40 drives the driven shaft 39 to rotate, and the driven shaft 39 drives the clamping plate 41 to rotate. This causes the clamping plate 41 to swing back and forth. The dust particles and water droplets condensed on the clamping plate 41 are thrown out by the back and forth swing of the clamping plate 41, so that the dust particles and water droplets condensed on the clamping plate 41 are thrown into the washing liquid of the main body 1, thereby realizing the dust removal operation of the dust particles in the dust-laden water mist, thus improving the dust removal effect of the dust-laden water mist.

[0050] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent blast furnace dust removal system, comprising a scrubber body and an air inlet pipe, wherein the scrubber body is connected to an air inlet pipe for conveying dust-laden gas, characterized in that, It also includes a washing unit, which includes an infusion pipe. The infusion pipe is connected to the side of the air inlet pipe. The infusion pipe is rotatably and sealed to a spray pipe at one end inside the air inlet pipe. Multiple impellers are evenly arranged on the outer wall of both ends of the spray pipe along its circumferential direction. The dust-laden gas provides a driving force to the impellers and the spray pipe to achieve uniform spraying of the dust-laden gas by the spray pipe.

2. The intelligent blast furnace dust removal system according to claim 1, characterized in that, The infusion tube is located on the outside of the air inlet tube and is equipped with an infusion valve.

3. The intelligent blast furnace dust removal system according to claim 1, characterized in that, The intake pipe has a constriction section in the middle, which constricts towards the inside of the intake pipe. A sliding rod is slidably sealed at the bottom of the intake pipe, and a throat is installed at the top of the sliding rod. The throat and the constriction section are adapted to each other.

4. The intelligent blast furnace dust removal system according to claim 1, characterized in that, A through groove is provided on the side of the washing machine body, and a baffle is slidably and sealed in the through groove. A straight plate is connected to one end of the baffle outside the washing machine body, and the ends of the straight plate and the sliding rod are connected to each other.

5. The intelligent blast furnace dust removal system according to claim 4, characterized in that, The straight plate and the air intake pipe are connected by a first elastic element.

6. The intelligent blast furnace dust removal system according to claim 4, characterized in that, The baffle is located inside the washer body and is connected to a float plate at one end. A connecting rod is provided on the float plate, and a float ball floating on the surface of the washing liquid is connected to the end of the connecting rod.

7. The intelligent blast furnace dust removal system according to claim 1, characterized in that, Multiple spray holes are evenly arranged on the outer wall of the spray pipe along its circumferential direction.

8. The intelligent blast furnace dust removal system according to claim 1, characterized in that, A ventilation duct is installed on the top of the washer body, and a one-way valve is installed inside the ventilation duct.

9. The intelligent blast furnace dust removal system according to claim 4, characterized in that, An auxiliary plate is provided at the connection position between the air intake pipe and the washing machine body. The auxiliary plate is provided with an inclined surface, which slopes downward from the end away from the washing machine body to the end closer to the washing machine body.

10. The intelligent blast furnace dust removal system according to claim 9, characterized in that, An auxiliary slot is provided on the auxiliary plate, and a partition is connected to the top of the baffle. The partition and the auxiliary slot are adapted to each other.

Images