A blast furnace iron-making slag flushing derived steam recycling device

Abstract

The present application relates to the technical fields of blast furnace ironmaking, and discloses a blast furnace ironmaking slag flushing derived steam recycling device, which comprises: an air inlet assembly having an air inlet end and an air outlet end, the air inlet end being arranged above a blast furnace ironmaking slag flushing flow channel; an expansion assembly capable of expanding and buffering impact force when a large amount of steam flows into the air inlet assembly; a filtering assembly capable of collecting and uniformly discharging steam emitted from the air outlet end of the air inlet assembly to the next process; and a water supply assembly capable of filtering steam entering the filtering assembly. The blast furnace ironmaking slag flushing derived steam recycling device can reduce instantaneous steam impact force through a three-stage buffer mechanism of expansion film deformation buffer, counterweight frame and spring reverse force relief, air inlet flow self-adaptive adjustment, solve problems such as pipeline excitation, sealing leakage and structure deformation caused by pulse steam in traditional systems, prolong the continuous operation cycle of equipment, and reduce the risk of unplanned shutdown.

Description

Technical Field

[0001] This invention relates to the field of blast furnace ironmaking technology, specifically to a device for recovering and treating steam generated from blast furnace slag flushing. Background Technology

[0002] During blast furnace ironmaking, molten slag at temperatures reaching 1400℃ to 1600℃ requires granulation treatment via water quenching (i.e., "slag flushing"). During this process, intense heat exchange occurs between the molten slag and water, causing some of the flushing water to vaporize instantaneously, generating a large amount of low-temperature saturated steam and humid aerosols, collectively referred to as "blast furnace ironmaking slag flushing derivative steam." Given the multiple demands for environmental protection (eliminating visual pollution and acid gas emissions), energy cascade utilization (recovering low-grade waste heat), safe production (improving operational visibility and corrosion prevention), and economic benefits, the efficient recovery and treatment of this derivative steam has become a crucial aspect of the steel industry's green transformation.

[0003] Currently, mainstream slag flushing steam recovery systems typically consist of stationary spray scrubbing towers and shell-and-tube heat exchangers. Although this process achieves steam collection and purification to a certain extent, it has the following shortcomings when dealing with the unique periodic slag discharge conditions of blast furnaces: The blast furnace slag discharge process is not continuous and uniform, but rather exhibits periodic instantaneous bursts. This results in the steam source having extremely strong pulse characteristics, with instantaneous flow peaks far exceeding the average value. When pulsed steam enters the pipeline network at high speed, it is very easy to trigger violent fluid vibration and water hammer effects. The resulting huge impact force often leads to loosening of pipeline connections, leakage of sealing surfaces, and even structural damage to equipment. Frequent unplanned shutdowns not only increase maintenance costs but also bring serious safety hazards. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a device for recovering and processing steam generated from blast furnace slag discharge, which can buffer and reuse the instantaneous steam generated during blast furnace slag discharge to a certain extent.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for recovering and treating steam derived from blast furnace slag flushing, comprising: The air intake assembly has an air intake end and an air outlet end, with the air intake end located above the slag flushing channel in blast furnace ironmaking. An expansion assembly that can expand and buffer the impact force when a large amount of steam rushes into the intake assembly; The filter assembly is capable of collecting and uniformly discharging the steam from the outlet of the air intake assembly to the next process. A water supply unit that filters steam entering the filter unit; The power mechanism is able to drive the water supply components to filter steam using the kinetic energy of steam movement; The regulating mechanism can adjust the amount of steam entering the power mechanism and the intake angle when steam enters the intake assembly and drives the expansion assembly to expand.

[0006] Furthermore, the air intake assembly includes a fifth pipe and a sixth pipe. The bottom surface of the fifth pipe faces the blast furnace ironmaking slag flushing channel. A first cavity is opened on the bottom surface of the fifth pipe. One side of the lower end of the fifth pipe is fixedly connected to one end of the sixth pipe. The other end of the sixth pipe is connected to the power mechanism. The expansion assembly is located in the first cavity and is located above the sixth pipe.

[0007] Furthermore, the expansion assembly includes a counterweight frame, an expansion membrane, a frame, and at least one spring. The outer wall of the frame is fixedly connected to the inner wall of the first cavity. The frame is located above the sixth tube. The upper surface of the frame abuts against the bottom surface of the counterweight frame. The upper surface of the counterweight frame is fixedly connected to the lower end of the spring. The upper end of the spring is fixedly connected to the top surface of the first cavity. The outer wall of the counterweight frame is slidably connected to the inner wall of the first cavity. The inner wall of the counterweight frame near the frame is fixedly connected to the outer wall of the expansion membrane. The cross-sections of the counterweight frame and the frame on the first surface are both rectangular, and the first surface is parallel to the horizontal plane.

[0008] Furthermore, the filtration assembly includes a sewage tank, a filter box, a first pipe body, and a second pipe body. The upper surface of the sewage tank is fixedly connected to the lower end of the filter box, the upper end of the filter box is fixedly connected to one end of the second pipe body, one side of the lower end of the filter box is connected to one end of the power mechanism, the other end of the power mechanism is located inside the sewage tank, and a portion of the water supply assembly is located inside the filter box.

[0009] Furthermore, the water supply assembly includes a multi-port pipe, a first rod, several third pipes, several first boxes, and several discs. The multi-port pipe is located outside the filter box, with one end fixedly connected to an external water source. The other ends of the multi-port pipe are respectively fixedly connected to one end of several third pipes. The other ends of several third pipes all penetrate into the filter box and are respectively fixedly connected to the outer wall of several first boxes. Several first boxes are fitted onto and rotatably connected to the outer wall of the first rod through a first bearing. The upper end of the first rod is rotatably connected to the upper end of the filter box through a second bearing. The lower end of the first rod is connected to a power mechanism located inside the sewage tank. Several discs are fitted onto and fixedly connected to the outer wall of the first rod. The number of discs is the same as the number of first boxes. The discs and the first boxes are staggered. The interior of each first box has a third cavity communicating with the third pipes. The bottom surface of each first box has several through holes communicating with the third cavity, located above the discs.

[0010] Furthermore, several first grooves are provided on the side of the disc body near the through hole.

[0011] Furthermore, the power mechanism includes a fourth tube, a second housing, a second rod, an impeller, and a transmission assembly. The two ends of the fourth tube are fixedly connected to the sixth tube and the first tube, respectively. The middle part of the fourth tube is fixedly connected to the side wall of the second housing. The two ends of the second rod are rotatably connected to the two sides of the middle part of the second housing through two third bearings. One end of the second rod is connected to the end of the transmission assembly located outside the sewage tank. The impeller is sleeved and fixedly connected to the outer wall of the second rod and is located inside the second housing.

[0012] Furthermore, the transmission assembly includes a chain, a third rod, a third housing, a first bevel gear, a second bevel gear, and two sprockets. One end of the third housing is fixedly connected to the inner wall of the sewage tank via a bracket. A second cavity is formed in the inner wall of the third housing, and both the first and second bevel gears are located within the second cavity. The first and second bevel gears mesh with each other. The central shaft of the first bevel gear is fixedly connected to one end of the third rod. The other end of the third rod passes through the third housing to the outer wall of the sewage tank. The third rod is rotatably connected to the inner wall of the sewage tank and the inner wall of the third housing via two fourth bearings, respectively. The central shaft of the second bevel gear is fixedly connected to the lower end of the first rod. The central shaft of the second bevel gear is also rotatably connected to the inner wall of the third housing via a fifth bearing. The central shafts of the two sprockets are fixedly connected to the second and third rods, respectively. The chain is sleeved on the outside of the two sprockets and meshes with both sprockets.

[0013] Furthermore, the adjustment mechanism includes a first plate, a rack plate, a guide assembly, a third plate, several spur gears, several second plates, and several fourth rods. A second groove is provided through one side of the upper end of the fifth tube. The second groove is located above the maximum lifting distance of the lower end of the counterweight frame. One end of the third plate is fixedly connected to the upper end of the counterweight frame, and the other end of the third plate extends through the outside of the second groove and is fixedly connected to one end of the first plate. The other end of the first plate is fixedly connected to the side wall of the rack plate. Both ends of the guide assembly are connected to the rack plate and the sixth tube, respectively. The central shafts of several spur gears are fixedly connected to one end of several fourth rods, and the other ends of several fourth rods extend through the interior of the sixth tube and are fixedly connected to one end of several second plates, respectively. The fourth rods are rotatably connected to the penetration point of the sixth tube through a sixth bearing. The rack plate meshes with several spur gears.

[0014] Furthermore, the guide assembly includes a seventh tube, a fifth rod, and two blocks. Both blocks are fixedly connected to the outer wall of the sixth tube. Both ends of the fifth rod are fixedly connected to the two blocks respectively. One end of the seventh tube is fixedly connected to the rack plate, and the other end of the seventh tube is sleeved and slidably connected to the outer wall of the fifth rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This blast furnace ironmaking slag-derived steam recovery and treatment device uses a three-stage buffering mechanism—expansion film deformation buffering, counterweight frame and spring reverse unloading, and adaptive adjustment of air intake flow—to reduce instantaneous steam impact force, solve problems such as pipeline vibration, seal leakage, and structural deformation caused by pulse steam in traditional systems, extend the continuous operation cycle of the equipment, and reduce the risk of unplanned shutdowns. This device for recovering and treating steam generated from blast furnace slag flushing utilizes the kinetic energy of steam flow to drive the impeller to rotate, and directly drives the spray disc to rotate at high speed through the transmission components to form a water barrier. It eliminates the need for an additional motor-driven spray system, reducing the energy consumption of traditional electric spraying processes, and also saves on the investment and maintenance costs of motors, cables and control units. This type of blast furnace ironmaking slag-derived steam recovery and treatment device uses a rotating disc to form a full-section dynamic water curtain, which enables forced contact between steam and washing water, improving the removal efficiency of slag particles and acidic aerosols in the steam and enhancing the purification efficiency of traditional fixed spray systems. This type of blast furnace slag flushing steam recovery and treatment device adopts a pure mechanical linkage design for the entire flow regulation mechanism. The opening of the regulating plate is directly driven by the lifting and lowering of the expansion component. There is no need to install electrical components such as pressure sensors and electric regulating valves. It can operate stably for a long time under the high temperature, high humidity, high dust and strong corrosion conditions of blast furnace slag flushing, with no risk of electrical failure and improved operational reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall appearance of the invention from another perspective; Figure 3 This is a schematic diagram of the internal structure of the filter assembly, power mechanism, and air intake assembly of the present invention. Figure 4 This is a cross-sectional and exploded view of the filter assembly, the fourth tube, and the fifth tube of the present invention. Figure 5 This is a detailed connection diagram of the water supply component, power mechanism, and expansion component of the present invention; Figure 6 This is a detailed connection diagram of the adjustment mechanism and expansion assembly of the present invention; Figure 7 This is a detailed connection diagram of the water supply component, power mechanism, and transmission component of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the various components from another perspective; Figure 9 For the present invention Figure 8 Enlarged diagram of point A in the middle.

[0017] In the picture: 1. Filter assembly; 11. Wastewater tank; 12. Filter box; 13. First pipe body; 14. Second pipe body; 2. Water supply components; 21. Multi-port pipe; 22. Third pipe body; 23. First rod body; 24. First box body; 241. Third cavity body; 242. Through hole; 25. Disc body; 251. First trough body; 3. Power mechanism; 31. Fourth tube; 32. Second housing; 33. Second rod; 34. Impeller; 4. Intake assembly; 41. Fifth pipe body; 411. Second groove body; 412. First cavity body; 42. Sixth pipe body; 5. Transmission assembly; 51. Chain; 52. Sprocket; 53. Third rod; 54. Third housing; 541. Second cavity; 55. First bevel gear; 56. Second bevel gear; 6. Adjustment mechanism; 61. First plate; 62. Spur gear; 63. Second plate; 64. Fourth rod; 65. Rack; 66. Guide assembly; 661. Seventh tube; 662. Fifth rod; 663. Block; 67. Third plate; 7. Expansion assembly; 71. Counterweight frame; 72. Expansion membrane; 73. Spring; 74. Frame. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Please see Figures 1-9 A device for recovering and treating steam derived from blast furnace slag flushing, comprising: The air intake assembly 4 has an air intake end and an air outlet end, with the air intake end located above the blast furnace ironmaking slag flushing channel. The expansion component 7 is capable of expanding and buffering the impact force when a large amount of steam enters the intake component 4; The filter assembly 1 is capable of collecting and uniformly discharging the steam from the outlet of the air intake assembly 4 to the next process. Water supply component 2, which is capable of filtering steam entering the filter component 1; The power mechanism 3 is able to drive the water supply assembly 2 to filter steam by the kinetic energy of steam movement; The regulating mechanism 6 can regulate the amount of steam entering the power mechanism 3 and the intake angle when steam enters the intake assembly 4 and drives the expansion assembly 7 to expand. Specifically, during operation, the pulse steam generated by blast furnace slag flushing is first collected by the inlet end of the inlet assembly 4 and introduced into the internal cavity. When the instantaneous high-flow steam comes into contact with the expansion assembly 7, the first wave of impact potential energy is dissipated through elastic deformation. At the same time, the expansion assembly 7 is pressurized and rises, triggering the regulating mechanism 6 to adaptively reduce the steam flow cross section and control the steam flow rate entering the downstream within a stable range, thus avoiding pipeline vibration and water hammer effect. After being buffered, the steam enters the power mechanism 3. The kinetic energy of the steam flow drives the transmission components of the power mechanism 3 to operate. It can drive the spray structure of the water supply component 2 to rotate without additional electricity, forming a full-section dynamic water curtain inside the filter component 1. The rising steam is forced to contact the water curtain, and the slag particles and acidic aerosols are trapped in the washing water. The purified steam is transported to the subsequent waste heat recovery process from the steam outlet of the filter component 1. The washing wastewater is discharged uniformly at the bottom of the filter component 1 by gravity settling. This realizes the coordinated operation of the entire process of buffering, purifying and self-utilizing the kinetic energy of the pulse steam.

[0020] Furthermore, in order to enable the air intake assembly 4 to smoothly guide the steam generated from blast furnace slag flushing into the filter assembly 1, as a preferred embodiment of the present invention, the air intake assembly 4 includes a fifth pipe body 41 and a sixth pipe body 42. The bottom surface of the fifth pipe body 41 faces the blast furnace ironmaking slag flushing channel. A first cavity 412 is opened on the bottom surface of the fifth pipe body 41. One side of the lower end of the fifth pipe body 41 is fixedly connected to one end of the sixth pipe body 42. The other end of the sixth pipe body 42 is connected to the power mechanism 3. The expansion assembly 7 is located in the first cavity 412 and is located above the sixth pipe body 42. Specifically, during installation, the opening of the fifth tube 41 toward the blast furnace slag flushing channel can be set to be larger, or the steam can be completely guided into the first cavity 412 of the fifth tube 41 through an external cover that can completely cover the top of the slag flushing channel. This not only maximizes the collection and reuse of steam, but also avoids the pollution of the environment by impurities in the steam. After installation, when the high-temperature liquid discharged from the blast furnace enters the slag flushing channel and instantly generates a large amount of steam, the steam will be instantly squeezed into the first chamber 412. At this time, the steam will instantly push the expansion component 7 located in the first chamber 412 to rise and expand, thereby buffering the instantaneous impact force and leaving more storage space to accommodate more steam as much as possible. The component can extend the service life of the fifth tube 41 and the sixth tube 42, and can also reduce the load on the subsequent power mechanism 3 through the buffering and temporary storage function of the expansion component 7.

[0021] Furthermore, in order to enable the expansion assembly 7 to expand and buffer the impact force when a large amount of steam rushes into the air intake assembly 4, as a preferred embodiment of the present invention, the expansion assembly 7 includes a counterweight frame 71, an expansion membrane 72, a frame 74, and at least one spring 73. The outer wall of the frame 74 is fixedly connected to the inner wall of the first cavity 412. The frame 74 is located above the sixth tube 42. The upper surface of the frame 74 abuts against the bottom surface of the counterweight frame 71. The upper surface of the counterweight frame 71 is fixedly connected to the lower end of the spring 73. The upper end of the spring 73 is fixedly connected to the top surface of the first cavity 412. The outer wall of the counterweight frame 71 is slidably connected to the inner wall of the first cavity 412. The inner wall of the counterweight frame 71 near the frame 74 is fixedly connected to the outer wall of the expansion membrane 72. The cross-section of the counterweight frame 71 and the frame 74 on the first surface is rectangular, and the first surface is parallel to the horizontal plane. Specifically, when not in use, the counterweight frame 71 rests above the frame 74 due to its own weight, and the expansion membrane 72 rests above the sixth tube 42. When a large amount of steam rushes into the first cavity 412, the steam will first come into contact with the expansion membrane 72. The expansion membrane 72 will be instantly "arched" to buffer some of the steam potential energy. After that, the steam continues to rush in, and the expansion membrane 72 expands to the point where it can no longer deform. Then, the expansion membrane 72 will rise up in the first cavity 412 like a "balloon". The counterweight frame 71, due to its own weight and the elastic force of the spring 73, will also have a continuous "downward" force to slow down the "upward" thrust of the steam, further buffering the steam potential energy. Afterwards, the remaining steam can enter the power mechanism 3 from the inside of the sixth tube 42 to drive the water supply component 2 (the specific method will be explained in detail later). In addition, because the counterweight frame 71 will drive the adjustment mechanism 6 to move during the upward process, the adjustment mechanism 6 can change the air intake and air flow angle of the gas flow in the sixth tube 42 by moving the components located in the sixth tube 42 (the specific method will be explained in detail later). It is worth noting that the expansion membrane 72 can be made of fluororubber (FKM / FPM), which has a long-term operating temperature range of -20℃ to 250℃ and can withstand short-term high temperatures of 300℃, completely covering the temperature range of saturated steam for slag flushing (usually 90℃ to 160℃) without thermal deformation or performance degradation. Furthermore, fluororubber has extremely strong corrosion resistance to acidic gases such as sulfur dioxide and hydrogen sulfide contained in blast furnace steam, as well as impurities such as calcium and magnesium ions and slag particles in slag flushing water, and its service life is 3-5 times that of ordinary rubber. At the same time, the elongation at break of fluororubber can reach 150%-300%, and the elastic recovery rate is ≥90%, which can withstand the large deformation caused by instantaneous steam impact. After the impact disappears, it can quickly return to its original shape, fully meeting the cyclical working requirements of "arching, buffering, and resetting".

[0022] Furthermore, in order to enable the filter assembly 1 to collect and uniformly discharge the steam from the outlet of the air intake assembly 4 to the next process, as a preferred embodiment of the present invention, the filter assembly 1 includes a wastewater tank 11, a filter box 12, a first pipe body 13 and a second pipe body 14. The upper surface of the wastewater tank 11 is fixedly connected to the lower end of the filter box 12, the upper end of the filter box 12 is fixedly connected to one end of the second pipe body 14, one side of the lower end of the filter box 12 is connected to one end of the power mechanism 3, the other end of the power mechanism 3 is located inside the wastewater tank 11, and a portion of the water supply assembly 2 is located inside the filter box 12. First, it is important to note that before collecting steam, the air inlet of an external exhaust fan (a conventional exhaust fan can be used, and the specific model is not limited; alternatively, a conventional heat exchange device can be installed between the end of the second tube 14 and the exhaust fan, and the specific model is not limited) needs to be connected to the second tube 14. This external exhaust fan will draw away the gas inside the filter box 12, ensuring that the steam entering the filter box 12 will flow away from the second tube 14. Specifically, when steam enters the filter assembly 1 through the sixth pipe 42 and the power mechanism 3, the steam will first pass through the first pipe 13 connected to the power mechanism 3, and then enter the filter box 12. Since the second pipe 14 is equipped with a vacuum pump, the steam will move from the bottom of the filter box 12 to the top of the filter box 12. As the steam rises inside the filter box 12, it will be flushed by the water supply assembly 2 located inside the filter box 12, thereby flushing away the particulate matter in the steam and reducing the probability of blockage of the heat exchange equipment during subsequent heat exchange. The particles and wastewater washed by the water supply component 2 will automatically fall into the wastewater tank 11 at the bottom of the filter box 12 due to gravity. After the processing is completed (or during the processing, the wastewater can be transported to an external wastewater treatment system for unified treatment by a water pump), and since wastewater treatment is not related to this invention, it will not be described in detail here.

[0023] Furthermore, in order to enable the water supply assembly 2 to filter the steam entering the filter assembly 1, as a preferred embodiment of the present invention, the water supply assembly 2 includes a multi-port pipe 21, a first rod body 23, a plurality of third pipe bodies 22, a plurality of first housings 24, and a plurality of discs 25. The multi-port pipe 21 is located outside the filter box 12, one end of the multi-port pipe 21 is fixedly connected to an external water source, and the other several ends of the multi-port pipe 21 are respectively fixedly connected to one end of a plurality of third pipe bodies 22. The other ends of the plurality of third pipe bodies 22 all penetrate into the filter box 12 and are respectively fixedly connected to the outer wall of a plurality of first housings 24. The plurality of first housings 24 are all fitted and connected to a first bearing. The first rod 23 is rotatably connected to the outer wall of the first rod 23. The upper end of the first rod 23 is rotatably connected to the upper end of the filter box 12 through the second bearing. The lower end of the first rod 23 is connected to the power mechanism 3 located in the sewage tank 11. Several discs 25 are sleeved and fixedly connected to the outer wall of the first rod 23. The number of discs 25 is the same as the number of first boxes 24. The discs 25 and the first boxes 24 are staggered. The first box 24 has a third cavity 241 that communicates with the third tube 22. The bottom surface of the first box 24 has several through holes 242 that communicate with the third cavity 241. The through holes 242 are located above the discs 25. More specifically, the disc body 25 has a plurality of first grooves 251 on the side near the through hole 242; First, it should be noted that before use, the end of the multi-port pipe 21 away from the third pipe body 22 needs to be fixed to an external water source (such as a water pump). Of course, some substances that help the particulate matter in the steam to settle can be added to the water source, and there are no specific restrictions. Specifically, in use, simply turn on the external water source, which will deliver clean water (or a mixture) into the multi-port pipe 21, and then from the other ends of the multi-port pipe 21 into the third pipe 22. After that, it can enter the third cavity 241 of the first box 24, and then flow through the through hole 242 into the first groove 251 of the disc 25. Because the first rod 23 and the disc 25 are rotating at high speed under the drive of the power mechanism 3, a "water barrier" will be formed between the edge of the disc 25 and the inner wall of the filter box 12, thereby causing the particles in the steam from bottom to top to collide with the wall of the filter box 12 (the wear resistance of the inner wall of the filter box 12 is existing technology and will not be described in detail here). Then, these particles will flow down the wall of the filter box 12 and be collected in the sewage tank 11. In addition, since the through hole 242 is located above the disc body 25 and does not come into direct contact with steam (it needs to enter the through hole 242 from the side of the first box body 24), the probability of the through hole 242 becoming blocked can be reduced.

[0024] Furthermore, in order to enable the power mechanism 3 to drive the water supply component 2 to filter steam through the kinetic energy of steam movement, as a preferred embodiment of the present invention, the power mechanism 3 includes a fourth pipe 31, a second box 32, a second rod 33, an impeller 34, and a transmission component 5. The two ends of the fourth pipe 31 are fixedly connected to the sixth pipe 42 and the first pipe 13, respectively. The middle part of the fourth pipe 31 is fixedly connected to the side wall of the second box 32. The two ends of the second rod 33 are rotatably connected to the two sides of the middle part of the second box 32 through two third bearings. One end of the second rod 33 is connected to the end of the transmission component 5 located outside the sewage tank 11. The impeller 34 is sleeved and fixedly connected to the outer wall of the second rod 33. The impeller 34 is located inside the second box 32. More specifically, the transmission assembly 5 includes a chain 51, a third rod 53, a third housing 54, a first bevel gear 55, a second bevel gear 56, and two sprockets 52. One end of the third housing 54 is fixedly connected to the inner wall of the sewage tank 11 via a bracket. A second cavity 541 is formed in the inner wall of the third housing 54. The first bevel gear 55 and the second bevel gear 56 are both located in the second cavity 541 and mesh with each other. The central axis of the first bevel gear 55 is fixedly connected to one end of the third rod 53, and the other end of the third rod 53... The end of the rod 53 extends through the third box 54 to the outer wall of the sewage tank 11, and the third rod 53 is rotatably connected to the inner wall of the sewage tank 11 and the inner wall of the third box 54 respectively through two fourth bearings. The central shaft of the second bevel gear 56 is fixedly connected to the lower end of the first rod 23. The central shaft of the second bevel gear 56 is also rotatably connected to the inner wall of the third box 54 through a fifth bearing. The central shafts of the two sprockets 52 are fixedly connected to the second rod 33 and the third rod 53 respectively. The chain 51 is sleeved on the outside of the two sprockets 52, and the chain 51 meshes with both sprockets 52. Specifically, firstly, the steam flow direction is: steam enters from the sixth tube 42 into the left end of the fourth tube 31 (with... Figure 3 (Example from a perspective) Afterwards, the steam impacts the impeller 34 inside the second box 32, then enters the first tube 13 from the right end of the fourth tube 31, and finally enters the filter box 12. After the steam impacts the impeller 34, the impeller 34 rotates inside the second housing 32 with the second rod 33 as the axis. The rotation of the second rod 33 drives the sprocket 52 connected to the second rod 33 to rotate. Then, this sprocket 52 drives another sprocket 52 to rotate via the chain 51. After that, it drives the third rod 53 to rotate. The rotation of the third rod 53 drives the first bevel gear 55 located in the second cavity 541 of the third housing 54 to rotate. Then, the first bevel gear 55 drives the second bevel gear 56 to rotate, thereby driving the first rod 23 to rotate. Through the above steps, not only can the power of the steam moving in the fourth tube 31 be applied to the first rod 23 through components such as the impeller 34, causing the first rod 23 to rotate at high speed, eliminating the need for an additional power source to drive it separately, but the potential energy of the steam rushing into the filter box 12 can also be further reduced, so that when the disc 25 rotates to separate particulate matter in the steam, the effect can be better. It should be noted here that: Figure 8 For ease of demonstration, the two sprockets 52 are set to the same size, as are the first bevel gear 55 and the second bevel gear 56. However, in actual operation, they can be set to "one large and one small" to create an effect similar to an "accelerator" and achieve power conversion more efficiently.

[0025] Furthermore, in order to enable the regulating mechanism 6 to adjust the intake volume and intake angle of steam entering the power mechanism 3 when steam enters the intake assembly 4 and drives the expansion assembly 7 to expand, as a preferred embodiment of the present invention, the regulating mechanism 6 includes a first plate 61, a rack plate 65, a guide assembly 66, a third plate 67, a plurality of spur gears 62, a plurality of second plates 63, and a plurality of fourth rods 64. A second groove 411 is provided through one side of the upper end of the fifth tube 41. The second groove 411 is located above the maximum rising distance of the lower end of the counterweight frame 71. One end of the third plate 67 is fixedly connected to the upper end of the counterweight frame 71. The other end of the third plate 67 extends through the outside of the second groove 411 and is fixedly connected to one end of the first plate 61. The other end of the first plate 61 is fixedly connected to the side wall of the rack plate 65. The two ends of the guide assembly 66 are respectively connected to the rack plate 65 and the sixth tube 42. The central shafts of several spur gears 62 are respectively fixedly connected to one end of several fourth rods 64. The other ends of several fourth rods 64 all extend through the inside of the sixth tube 42 and are respectively fixedly connected to one end of several second plates 63. The fourth rods 64 are rotatably connected to the penetration of the sixth tube 42 through the sixth bearing. The rack plate 65 and several spur gears 62 are all meshed. More specifically, the guide assembly 66 includes a seventh tube 661, a fifth rod 662, and two blocks 663. Both blocks 663 are fixedly connected to the outer wall of the sixth tube 42. Both ends of the fifth rod 662 are fixedly connected to the two blocks 663 respectively. One end of the seventh tube 661 is fixedly connected to the rack plate 65, and the other end of the seventh tube 661 is sleeved and slidably connected to the outer wall of the fifth rod 662. First, it should be specifically noted that when there is no instantaneous influx of steam to drive the expansion component 7 to expand, the state of the several second plates 63 is as follows: Figure 6 As shown, the adjacent second plates 63 do not contact each other, that is, there is a steam "flow channel" between the adjacent second plates 63 for the normal flow of conventional steam; Specifically, when the counterweight frame 71 rises within the first cavity 412 due to the instantaneous influx of steam, the third plate 67 connected to the counterweight frame 71 can rise within the second groove 411. Simultaneously, the rise of the third plate 67 also pulls the first plate 61 upwards. Subsequently, the rise of the first plate 61 pulls the rack plate 65 upwards, and the rise of the rack plate 65 causes several spur gears 62 to rotate clockwise (to...). Figure 6 (From a perspective), when the spur gear 62 rotates clockwise, it can cause the fourth rod 64 and the second plate 63 to rotate clockwise together. When the second plate 63 rotates, it can reduce the flow channel between two adjacent second plates 63, thereby limiting the amount of steam that rushes into the impeller 34 instantly. Because a large amount of steam rushes in instantly, if the flow channel size is not reduced, the steam flow speed is fast and the volume is large. This will not only increase the speed of impeller 34, but also cause the amount of steam entering the filter box 12 to increase instantly. This may affect the particle separation of the subsequent water supply component 2 and the heat exchange efficiency of the external heat exchanger. At this time, the flow channel size is adjusted by the amount of steam rushing in itself, so that the amount of steam entering the filter box 12 is kept at an average level. Furthermore, after the instantaneous steam is buffered by the expansion component 7, as the amount of steam decreases, the expansion component 7 will automatically descend again due to the action of the counterweight frame 71 and the spring 73. This not only transports the steam that was temporarily collected in the enlarged first cavity 412 back to the filter box 12, but also automatically enlarges the flow channel between the second plates 63 without manual operation.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A device for recovering and treating steam generated from blast furnace slag flushing, characterized in that, include: The air intake assembly (4) has an air intake end and an air outlet end, the air intake end being disposed above the blast furnace ironmaking slag flushing channel; The expansion assembly (7) is capable of expanding and buffering the impact force when a large amount of steam enters the air intake assembly (4); The filter assembly (1) is capable of collecting and uniformly discharging the steam from the outlet of the air intake assembly (4) to the next process. Water supply assembly (2) is capable of filtering steam entering the filter assembly (1); The power mechanism (3) can drive the water supply component (2) to filter steam by the kinetic energy of steam movement; The regulating mechanism (6) can regulate the amount of steam entering the power mechanism (3) and the intake angle when steam enters the intake assembly (4) and drives the expansion assembly (7) to expand.

2. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 1, characterized in that, The air intake assembly (4) includes a fifth tube (41) and a sixth tube (42). The bottom surface of the fifth tube (41) faces the blast furnace ironmaking slag flushing channel. A first cavity (412) is opened on the bottom surface of the fifth tube (41). One side of the lower end of the fifth tube (41) is fixedly connected to one end of the sixth tube (42). The other end of the sixth tube (42) is connected to the power mechanism (3). The expansion assembly (7) is located in the first cavity (412) and is located above the sixth tube (42).

3. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 2, characterized in that, The expansion assembly (7) includes a counterweight frame (71), an expansion membrane (72), a frame (74), and at least one spring (73). The outer wall of the frame (74) is fixedly connected to the inner wall of the first cavity (412). The frame (74) is located above the sixth tube (42). The upper surface of the frame (74) abuts against the bottom surface of the counterweight frame (71). The upper surface of the counterweight frame (71) is fixedly connected to the lower end of the spring (73). The upper end of the spring (73) is fixedly connected to the top surface of the first cavity (412). The outer wall of the counterweight frame (71) is slidably connected to the inner wall of the first cavity (412). The inner wall of the counterweight frame (71) near the frame (74) is fixedly connected to the outer wall of the expansion membrane (72). The cross-sections of the counterweight frame (71) and the frame (74) on the first surface are both rectangular, and the first surface is parallel to the horizontal plane.

4. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 3, characterized in that, The filter assembly (1) includes a sewage tank (11), a filter box (12), a first pipe (13), and a second pipe (14). The upper surface of the sewage tank (11) is fixedly connected to the lower end of the filter box (12). The upper end of the filter box (12) is fixedly connected to one end of the second pipe (14). One side of the lower end of the filter box (12) is connected to one end of the power mechanism (3). The other end of the power mechanism (3) is located inside the sewage tank (11). A portion of the water supply assembly (2) is located inside the filter box (12).

5. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 4, characterized in that, The water supply assembly (2) includes a multi-port pipe (21), a first rod (23), several third pipes (22), several first boxes (24), and several discs (25). The multi-port pipe (21) is located outside the filter box (12). One end of the multi-port pipe (21) is fixedly connected to an external water source. The other ends of the multi-port pipe (21) are respectively fixedly connected to one end of several third pipes (22). The other ends of several third pipes (22) all penetrate into the filter box (12) and are respectively fixedly connected to the outer wall of several first boxes (24). Several first boxes (24) are all fitted onto the outer wall of the first rod (23) and rotatably connected to it through a first bearing. The upper end of the first rod (23) The first rod (23) is rotatably connected to the upper end of the filter box (12) via the second bearing. The lower end of the first rod (23) is connected to the power mechanism (3) located in the sewage tank (11). Several discs (25) are sleeved and fixedly connected to the outer wall of the first rod (23). The number of discs (25) is the same as the number of first boxes (24). Several discs (25) and several first boxes (24) are staggered. The interior of the first box (24) is provided with a third cavity (241) that communicates with the third tube (22). The bottom surface of the first box (24) is provided with several through holes (242) that communicate with the third cavity (241). The through holes (242) are located above the discs (25).

6. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 5, characterized in that, The disc body (25) has several first grooves (251) on the side near the through hole (242).

7. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 6, characterized in that, The power mechanism (3) includes a fourth tube (31), a second box (32), a second rod (33), an impeller (34), and a transmission assembly (5). The two ends of the fourth tube (31) are fixedly connected to the sixth tube (42) and the first tube (13), respectively. The middle part of the fourth tube (31) is fixedly connected to the side wall of the second box (32). The two ends of the second rod (33) are rotatably connected to the two sides of the middle part of the second box (32) through two third bearings. One end of the second rod (33) is connected to the end of the transmission assembly (5) located outside the sewage tank (11). The impeller (34) is sleeved and fixedly connected to the outer wall of the second rod (33). The impeller (34) is located inside the second box (32).

8. The device for recovering and treating steam derived from blast furnace slag flushing according to claim 7, characterized in that, The transmission assembly (5) includes a chain (51), a third rod (53), a third housing (54), a first bevel gear (55), a second bevel gear (56), and two sprockets (52). One end of the third housing (54) is fixedly connected to the inner wall of the sewage tank (11) via a bracket. The inner wall of the third housing (54) has a second cavity (541). The first bevel gear (55) and the second bevel gear (56) are both located in the second cavity (541). The first bevel gear (55) and the second bevel gear (56) mesh. The central axis of the first bevel gear (55) is fixedly connected to one end of the third rod (53). The other end of the rod penetrates through the third box (54) to the outer wall of the sewage tank (11), and the third rod (53) is rotatably connected to the inner wall of the sewage tank (11) and the inner wall of the third box (54) respectively through two fourth bearings. The central shaft of the second bevel gear (56) is fixedly connected to the lower end of the first rod (23). The central shaft of the second bevel gear (56) is also rotatably connected to the inner wall of the third box (54) through a fifth bearing. The central shafts of the two sprockets (52) are fixedly connected to the second rod (33) and the third rod (53) respectively. The chain (51) is sleeved on the outside of the two sprockets (52), and the chain (51) meshes with both sprockets (52).

9. A device for recovering and treating steam derived from blast furnace slag flushing according to claim 8, characterized in that, The adjusting mechanism (6) includes a first plate (61), a rack plate (65), a guide assembly (66), a third plate (67), several spur gears (62), several second plates (63), and several fourth rods (64). A second groove (411) is provided through one side of the upper end of the fifth tube (41). The second groove (411) is located above the maximum lifting distance of the lower end of the counterweight frame (71). One end of the third plate (67) is fixedly connected to the upper end of the counterweight frame (71), and the other end of the third plate (67) extends through to the outside of the second groove (411) and is fixed to one end of the first plate (61). The first plate (61) is fixedly connected to the side wall of the rack plate (65) at one end. The two ends of the guide assembly (66) are respectively connected to the rack plate (65) and the sixth tube (42). The central shafts of the plurality of spur gears (62) are respectively fixedly connected to one end of the plurality of fourth rods (64). The other ends of the plurality of fourth rods (64) all penetrate into the interior of the sixth tube (42) and are respectively fixedly connected to one end of the plurality of second plates (63). The fourth rods (64) are rotatably connected to the sixth tube (42) through the sixth bearing. The rack plate (65) meshes with the plurality of spur gears (62).

10. A device for recovering and treating steam derived from blast furnace slag flushing according to claim 9, characterized in that, The guide assembly (66) includes a seventh tube (661), a fifth rod (662), and two blocks (663). Both blocks (663) are fixedly connected to the outer wall of the sixth tube (42). The two ends of the fifth rod (662) are fixedly connected to the two blocks (663) respectively. One end of the seventh tube (661) is fixedly connected to the rack plate (65), and the other end of the seventh tube (661) is sleeved and slidably connected to the outer wall of the fifth rod (662).

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