Slag pool water film dust removal internal circulation system

Abstract

The present invention relates to the field of slag pool dust removal, and specifically to a slag pool water film dust removal internal circulation system, comprising a tank body, a water film dust removal unit, a wastewater treatment unit and a clean water circulation unit, the tank body having an air inlet and an air outlet, the water film dust removal unit comprising a lower water film assembly and an upper water film assembly, and a drainage channel, the lower water film assembly and the upper water film assembly both comprising a metal mesh and an atomizer for forming a water film on the metal mesh, a rotating connector for installing the metal mesh is provided in the tank body, a rotating shaft is provided between the two metal meshes, and a rotating driver for driving the rotating shaft to rotate is provided in the tank body, the present invention can effectively capture particulate matter in dust and gas through the synergistic effect of the upper water film assembly and the lower water film assembly, in this process, the drainage channel effectively prevents the water flow falling from the upper water film assembly from affecting the lower water film assembly, which not only ensures the normal operation of the lower water film assembly, but also greatly improves the filtering effect.

Description

Technical Field

[0001] The invention relates to the field of slag pool dust removal, and in particular to a slag pool water film dust removal internal circulation system. Background Art

[0002] Water film dust removal equipment is a purification equipment that captures dust by water film and purifies gas. At present, water film dust removal equipment is mainly composed of a cylinder, an upper water injection tank, a lower overflow hole, etc. This wet dust collector has a simple structure, small metal consumption and small water consumption. However, the layout of water film dust removal equipment is difficult, and water is often carried in actual operation, which makes its dust removal effect poor.

[0003] The currently disclosed Chinese patent CN211987693U discloses a slag pool water film dust prevention system, comprising a slag pool, a water film dust collector, a water pump and a water pool; the water film dust collector comprises a flue, a cylinder, a water injection groove and an overflow hole; the flue is arranged at the bottom outside the cylinder, the water injection groove is arranged at the top of the cylinder, and the overflow hole is arranged at the bottom of the cylinder; the smoke exhaust port of the slag pool is connected to the flue, and the dust gas in the slag pool enters the cylinder through the flue; the water outlet of the water pump is connected to the water injection groove, and the circulating water enters the cylinder through the water outlet of the water pump through the water injection groove, and forms a layer of water film flowing from top to bottom on the inner wall of the cylinder; the water pool is connected to the overflow hole; the wastewater after the dust in the dust gas and the water film are mixed flows out from top to bottom to the overflow hole and flows into the water pool; the water pool is also connected to the water suction port of the water pump, and the wastewater enters the water film dust collector again through the water pump after sedimentation.

[0004] According to the above patent, the above patent relies on the design of the water injection tank in the water film dust collector. When the water film dust collector is in operation, the circulating water sprayed from the water injection tank is dispersed in the form of mist and fully contacts the incoming dust gas. The dust particles are captured, moistened and agglomerated by the water film, thereby increasing their volume and weight, and finally settle under the combined action of centrifugal force and gravity to achieve dust removal. However, the water mist at the spraying point of the patent cannot ensure uniform distribution, and for some dust that is difficult to capture, the overall dust removal capacity does not meet the qualified requirements. Therefore, there is a need for a water film dust removal internal circulation system that can improve the dust removal capacity for dust that is difficult to capture. Summary of the invention

[0005] In view of the problems existing in the prior art, a slag pool water film dust removal internal circulation system is provided. The present invention can effectively capture particulate matter in dust gas through the synergistic effect of the upper water membrane assembly and the lower water membrane assembly. In this process, the drainage channel effectively prevents the water flow falling from the upper water membrane assembly from affecting the lower water membrane assembly, which not only ensures the normal operation of the lower water membrane assembly, but also greatly improves the filtering effect.

[0006] In order to solve the problems of the prior art, the present invention provides a slag pool water film dust removal internal circulation system, including a tank body, a water film dust removal unit, a wastewater treatment unit and a clean water circulation unit, the tank body having an air inlet for the dust gas in the slag pool to enter the tank body and an air outlet for the clean gas to be discharged, the water film dust removal unit comprising a lower water film assembly and an upper water film assembly which are arranged in the upper half of the tank body and have the same structure, and a drainage channel for preventing the falling water flow from affecting the water film forming of the lower water film assembly, the drainage channel is located between the lower water film assembly and the upper water film assembly, the lower water film assembly and The water film assembly includes a metal mesh coaxial with the tank body and an atomizer for forming a water film on the metal mesh. The metal mesh can rotate around its axis in the tank body. The tank body is provided with a rotating connector for installing the metal mesh. A rotating shaft is coaxially and fixedly provided between the two metal meshes. The tank body is provided with a rotating driver for driving the rotating shaft to rotate. The rotating shaft has a water collection channel extending upward from its lower end along its axial direction. The surface of the rotating shaft is provided with a drainage port for the drainage channel to direct water into the water collection channel.

[0007] Preferably, a primary water curtain and a secondary water curtain in a flowing state formed by a continuously falling water flow are provided in the drainage channel, and the secondary water curtain is located above the primary water curtain. When the lower water membrane assembly and the upper water membrane assembly are started at the same time, the dust moves upward by passing through the lower water membrane assembly, the primary water curtain, the secondary water curtain and the upper water membrane assembly in sequence.

[0008] Preferably, the drainage channel is an S-shaped winding channel structure, and a first disk, a second disk and a third disk are arranged from bottom to top in the tank body. The first disk, the second disk and the third disk, the rotating shaft and the tank body together form the drainage channel, and the first disk and the first disk are connected by the continuous flow of water from top to bottom to form the first-level water curtain, and the third disk and the second disk are connected by the continuous flow of water from top to bottom to form the second-level water curtain.

[0009] Preferably, the first disk and the third disk are both transmission connected to the rotating shaft, the second disk is fixedly connected to the tank body, the first disk and the third disk have gaps relative to the tank body for gas to flow upward, and a gap is left between the second disk and the rotating shaft for gas to flow upward, and a vibration structure is provided in the tank body to loosen impurities on the surface of the third disk. When the rotating shaft rotates, the first disk and the third disk are in a synchronous and same-direction rotation state relative to the second disk, and the rotating third disk is in an up and down vibration state under the action of the vibration structure.

[0010] Preferably, the upper surface of the third disk is an outer inclined surface that can accelerate the flow of water toward the tank body, and the upper surfaces of the first disk and the second disk are both inner inclined surfaces that can accelerate the flow of water toward the rotation axis, and the upper surface of the first disk is aligned with the lowest position of the drainage port on the rotating axis.

[0011] Preferably, a sliding sleeve on the rotating shaft is provided with a sliding sleeve fixedly connected to the third disk body, an elastic connecting member for buffering effect is fixedly provided between the lower end of the sliding sleeve and the rotating shaft, and a limiting part for limiting the vibration range is fixedly provided on the rotating shaft and above the sliding sleeve.

[0012] Preferably, the vibration structure includes a force-bearing part fixedly arranged on the third disk body, and a force-applying part fixedly arranged on the tank body. When the third disk body rotates to cause the force-bearing part to pass through the force-applying part, the third disk body is in an upward moving state, and when the third disk body rotates to cause the force-bearing part to pass through the force-applying part, the third disk body is in a downward resetting state under its own gravity.

[0013] Preferably, the force-bearing part is a spherical structure, the force-applying part is a plate-like structure, and a plurality of the force-bearing parts are evenly distributed on the third disk body around its circumference. The force-applying part has a slope on one side of the third disk body in the direction of rotation that can guide the force-bearing part to rise.

[0014] Preferably, the rotary connector is specifically a bearing structure, and sealing gaskets are provided at the upper end and the lower end of the rotary connector.

[0015] Preferably, the rotary drive includes a nozzle fixedly mounted on the tank body, and a power structure fixedly mounted on the upper surface of the first disk body for using the water flow sprayed by the nozzle as a power source. The nozzle of the nozzle is directly opposite to the power structure. When the nozzle sprays water, the water flow impacts the power structure, causing the first disk body to be in a continuous rotation state, thereby indirectly driving the two metal meshes to be in a rotation state at the same time through the rotating shaft, so that impurities attached to the surface of the metal mesh are in a falling-off state under the action of centrifugal force and gravity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can effectively capture particulate matter in dust and gas through the synergistic effect of the upper water membrane assembly and the lower water membrane assembly. Larger particulate matter is preliminarily filtered in the lower water membrane assembly, while smaller particulate matter is further filtered in the upper water membrane assembly. In this process, the drainage channel effectively prevents the water flow falling from the upper water membrane assembly from affecting the lower water membrane assembly, thereby avoiding the destruction of the equilibrium state of the water film formed by the lower water membrane assembly. In addition, the metal meshes of the upper water membrane assembly and the lower water membrane assembly rotate, which not only helps to improve the capture efficiency of particulate matter, but also reduces the clogging of the metal mesh, so that the attached particulate matter automatically falls under the action of centrifugal force and gravity, which not only ensures the normal operation of the lower water membrane assembly, but also greatly improves the double filtration effect, ensuring that the quality of the discharged clean air reaches an appropriate level.

[0018] 2. The present invention uses an atomizer to atomize water into tiny water droplets and form a uniform water film on the metal mesh. Combined with the falling water flow of the water film continuously formed by the upper water membrane component, a secondary water curtain and a primary water curtain are formed in sequence through the drainage channel, thereby forming a multi-stage filtration system, which effectively captures particles of different sizes in the dust gas. In this process, the lower water membrane component initially filters larger particles, and then the primary water curtain and the secondary water curtain further capture smaller and smaller particles. Finally, the upper water membrane component completes the final filtration. During the whole process, the particles are guided to the water collection channel along with the water flow, and are finally treated by the wastewater treatment unit, which significantly improves the dust removal efficiency.

[0019] 3. In the present invention, the force-bearing part fixed on the third disk and the force-applying part fixed on the tank body work in coordination. The third disk is periodically pushed upward during rotation and moves upward accordingly, and then resets downward under the action of gravity, so that the third disk continuously vibrates up and down during rotation, effectively loosening and removing impurities attached to the surface of the third disk, avoiding the situation where impurities directly dropped from the water supply membrane assembly adhere to the surface of the third disk, thereby improving the effect of impurity discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the internal circulation system of the slag pool water film dust removal.

[0021] Figure 2 It is a partial three-dimensional structural cross-sectional view of the internal circulation system of the slag pool water film dust removal.

[0022] Figure 3 It is a partial plan cross-sectional view of the internal circulation system of the slag pool water film dust removal.

[0023] Figure 4 It is a partial three-dimensional structural cross-sectional view of the direction of the lower water membrane component of the internal circulation system of the slag pool water film dust removal.

[0024] Figure 5It is a partial three-dimensional structural cross-sectional view of the direction of the upper water membrane component of the internal circulation system of the slag pool water film dust removal.

[0025] Figure 6 yes Figure 3 A cross-sectional view of the three-dimensional structure at AA.

[0026] Figure 7 yes Figure 3 A cross-sectional view of the three-dimensional structure at BB.

[0027] Figure 8 yes Figure 5 Enlarged schematic diagram of point C.

[0028] Fig. 9 yes Figure 5 An enlarged schematic diagram of point D.

[0029] Fig.10 yes Figure 7 Enlarged schematic diagram of point E.

[0030] The numbers in the figure are: 1. tank body; 11. air inlet; 12. air outlet; 2. lower water membrane assembly; 21. metal mesh; 22. atomizer; 3. upper water membrane assembly; 4. drainage channel; 41. primary water curtain; 42. secondary water curtain; 43. first disk body; 44. second disk body; 45. third disk body; 451. sliding sleeve; 4511. ball bearing; 452. elastic connecting piece; 453. limiting part; 5. rotating connecting piece; 51. rotating shaft; 511. water collecting channel; 512. drainage port; 52. rotating drive; 521. nozzle; 522. guide block; 53. sealing gasket; 6. vibration structure; 61. force-bearing part; 62. force-applying part. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figure 1-Figure 8As shown, the slag pool water film dust removal internal circulation system includes a tank body 1, a water film dust removal unit, a wastewater treatment unit and a clean water circulation unit. The tank body 1 has an air inlet 11 for the dust gas in the slag pool to enter the tank body 1 and an air outlet 12 for the clean gas to be discharged. The water film dust removal unit includes a lower water film assembly 2 and an upper water film assembly 3 which are arranged in the upper half of the tank body 1 and have the same structure, and a drainage channel 4 for preventing the falling water flow from affecting the water film forming of the lower water film assembly 2. The drainage channel 4 is located between the lower water film assembly 2 and the upper water film assembly 3. The lower water film assembly 2 and the upper water film assembly 3 both include a coaxial A metal mesh 21 and an atomizer 22 for forming a water film on the metal mesh 21, wherein the metal mesh 21 can rotate around its axis in the tank body 1, and the tank body 1 is provided with a rotating connector 5 for installing the metal mesh 21, and a rotating shaft 51 is coaxially and fixedly provided between the two metal meshes 21, and the tank body 1 is provided with a rotating driver 52 for driving the rotating shaft 51 to rotate, and the rotating shaft 51 has a water collection channel 511 extending upward from its lower end along its axial direction, and a drainage port 512 is provided on the surface of the rotating shaft 51 for the drainage channel 4 to direct water into the water collection channel 511.

[0033] When filtering the dust in the slag pool, the dust in the slag pool enters the tank body 1 through the air inlet 11 of the tank body 1. The dust first passes through the lower water membrane assembly 2 located in the upper half of the tank body 1, and the atomizer 22 atomizes the water into tiny water droplets and sprays them on the metal mesh 21 to form a uniform water film. The metal mesh 21 rotates around its axis under the action of the rotary driver 52. During the rotation process, the water film can better capture larger particles in the dust. The particles in the dust will be captured by the water film and attached to the metal mesh 21. These particles fall to the bottom of the tank body 1 under centrifugal and gravity as the metal mesh 21 rotates, and are treated by the wastewater treatment unit. After the preliminary filtration, the dust continues to rise and passes through the upper water membrane assembly 3. The upper water membrane assembly 3 also further filters the dust through the water film formed by the atomizer 22. The water mist sprayed by the atomizer 22 of the upper water membrane assembly 3 is finer than the water mist sprayed by the atomizer 22 of the lower water membrane assembly 2, thereby capturing smaller particles, which are captured by the water film and attached to the metal mesh 21. The metal mesh 21 of the upper water membrane assembly 3 also rotates under the action of the rotary driver 52, and the captured particles fall into the drainage channel 4 under centrifugal and gravity as the metal mesh 21 rotates. The flow of water is guided by the drainage channel 4, so that the particles follow the water flow through the drainage port 512 into the water collection channel 511, and finally fall to the bottom of the tank body 1, and are also processed by the wastewater treatment unit. In order to prevent the water flow falling from the upper water membrane assembly 3 from affecting the normal operation of the lower water membrane assembly 2, the drainage channel 4 set between the two guides the water flow falling from the upper water membrane assembly 3 to the water collection channel 511 to prevent the water flow from directly impacting the lower water membrane assembly 2. The clean air filtered by the two layers of water film is discharged from the air outlet 12 at the top of the tank body 1. The collected wastewater enters the wastewater treatment unit for treatment. The treated clean water is re-transported to the atomizer 22 through the clean water circulation unit and is used again to form a water film.

[0034] See also Figure 2-Figure 5 As shown, a primary water curtain 41 and a secondary water curtain 42 in a flowing state formed by a continuously falling water flow are provided in the drainage channel 4, and the secondary water curtain 42 is located above the primary water curtain 41. When the lower water membrane assembly 2 and the upper water membrane assembly 3 are started at the same time, the dust moves upward by passing through the lower water membrane assembly 2, the primary water curtain 41, the secondary water curtain 42 and the upper water membrane assembly 3 in sequence.

[0035] When the atomizer 22 atomizes the water into tiny water droplets, a uniform water film is formed on the metal mesh 21. As the upper water film assembly 3 continues to form a water film, the falling water flow is drained into it by the drainage channel 4, and the water flow flows along the drainage channel 4, and then forms a secondary water curtain 42 and a primary water curtain 41 in sequence, and finally enters the water collection channel 511 through the drainage port 512. The primary water curtain 41 and the secondary water curtain 42 are both composed of fine water flows, and the water flows from top to bottom to form a uniform water curtain. The dust gas that has been initially filtered by the lower water film assembly 2 rises to the primary water curtain 41. When the dust gas contacts the primary water curtain 41, the fine water droplets in the water flow will further capture the particles in the dust gas. The dust gas that has been filtered by the primary water curtain 41 continues to rise to the secondary water curtain 42. When the dust gas contacts the secondary water curtain 42, the fine water droplets in the water flow will further capture smaller particles in the dust gas, thereby ensuring that the smaller particles in the dust gas can be effectively captured. The particles flow into the water collection channel 511 and finally fall to the bottom of the tank 1 and are processed by the wastewater treatment unit. The dust gas filtered by the secondary water curtain 42 continues to rise and passes through the upper water membrane assembly 3 for final filtration.

[0036] See also Figure 2-Figure 5 As shown, the drainage channel 4 is an S-shaped winding channel structure, and a first disk 43, a second disk 44 and a third disk 45 are arranged from bottom to top in the tank body 1. The first disk 43, the second disk 44 and the third disk 45 together with the rotating shaft 51 and the tank body 1 form the drainage channel 4, and the second disk 44 and the first disk 43 form the first-level water curtain 41 through the continuous flow of water from top to bottom between the second disk 44 and the first disk 43, and the second-level water curtain 42 is formed between the third disk 45 and the second disk 44 through the continuous flow of water from top to bottom.

[0037] The primary water curtain 41 and the secondary water curtain 42 are formed at each turn of the winding drainage channel 4. Both the primary water curtain 41 and the secondary water curtain 42 capture the particles in the dust gas, ensuring that the particles in the dust gas can be filtered step by step. In addition, the winding structure of the drainage channel 4 helps the water flow to flow smoothly, avoiding the risk of the water flow falling from above interfering with the formation of the water film of the lower water membrane assembly 2. It not only performs multi-stage filtration on the dust gas, but also guides the falling water flow to be discharged downward without affecting the lower water membrane assembly 2, thereby improving the overall dust removal effect.

[0038] See also Figure 2-Figure 5As shown, the first disk 43 and the third disk 45 are both transmission connected to the rotating shaft 51, and the second disk 44 is fixedly connected to the tank body 1. The first disk 43 and the third disk 45 have gaps relative to the tank body 1 for gas to flow upward, and a gap is left between the second disk 44 and the rotating shaft 51 for gas to flow upward. The tank body 1 is provided with a vibration structure 6 for loosening impurities on the surface of the third disk 45. When the rotating shaft 51 rotates, the first disk 43 and the third disk 45 are in a synchronous and same-direction rotation state relative to the second disk 44, and the rotating third disk 45 is in an up and down vibration state under the action of the vibration structure 6.

[0039] When the water flow continues to fall from the third disc 45 through the gap onto the second disc 44, a secondary water curtain 42 is formed between the third disc 45 and the second disc 44, and when the water flow continues to fall from the second disc 44 through the gap onto the first disc 43, a primary water curtain 41 is formed between the second disc 44 and the first disc 43. When the dust gas passes through the tank body 1, it is first filtered by the lower water membrane assembly 2, and then filtered step by step by the primary water curtain 41 and the secondary water curtain 42. The gaps between the first disc 43, the second disc 44 and the third disc 45 and the tank body 1 or the rotating shaft 51 ensure that the gas can rise smoothly without being blocked. The formed water flow flows along the winding drainage channel 4, and finally enters the water collection channel 511 through the drainage port 512. As the first disk 43 and the third disk 45 are connected to the rotating shaft 51 by transmission, and the third disk 45 vibrates up and down under the action of the vibration structure 6 during the rotation process, not only the impurities on the surface of the third disk 45 are effectively removed, but also it is ensured that the water flow forms a uniform water curtain between the first disk 43, the second disk 44 and the third disk 45, so that the particulate matter in the dust gas can be fully captured.

[0040] See also Figure 2 and Figure 3 As shown, the upper surface of the third disk 45 is an outer inclined surface that can accelerate the flow of water toward the tank body 1, and the upper surfaces of the first disk 43 and the second disk 44 are both inner inclined surfaces that can accelerate the flow of water toward the rotating shaft 51. The upper surface of the first disk 43 is aligned with the lowest position of the drainage port 512 on the rotating shaft 51.

[0041] When the water flows from the third disc 45 to the second disc 44 through the gap, the upper surface of the third disc 45 is designed as an outer inclined surface, which can accelerate the flow of water toward the tank body 1, so that the water flows more smoothly from the third disc 45 to the second disc 44, and reduces the retention time of the water on the third disc 45. At the same time, the upper surfaces of the first disc 43 and the second disc 44 are designed as inner inclined surfaces, which can accelerate the flow of water toward the rotation axis 51. When the water flows from the second disc 44 to the first disc 43 through the gap, the inner inclined surface ensures that the water flows quickly toward the rotation axis 51, further enhancing the fluidity of the water. In addition, the upper surface of the first disc 43 is aligned with the lowest position of the drainage port 512 on the rotation axis 51, ensuring that the water can directly enter the drainage port 512 on the rotation axis 51 after reaching the first disc 43, avoiding the accumulation of water on the first disc 43 and improving the discharge efficiency of the water.

[0042] See also Figure 3-Figure 5 and Fig. 9 As shown, a sliding sleeve 451 is provided on the rotating shaft 51 and is fixedly connected to the third disk body 45. An elastic connecting member 452 for buffering effect is fixedly provided between the lower end of the sliding sleeve 451 and the rotating shaft 51. A limiting portion 453 for limiting the vibration range is fixedly provided on the rotating shaft 51 and above the sliding sleeve 451.

[0043] The inner diameter of the sliding sleeve 451 is larger than the outer diameter of the rotating shaft 51, and a ball bearing 4511 is provided between the sliding sleeve 451 and the rotating shaft 51. When the rotating shaft 51 rotates, the third disk 45 rotates simultaneously. Under the action of the vibration structure 6, the sliding sleeve 451 can slide up and down along the rotating shaft 51, thereby driving the third disk 45 to vibrate up and down. The elastic connecting member 452 fixedly provided between the lower end of the sliding sleeve 451 and the rotating shaft 51 plays a buffering effect, which can absorb and release energy when the sliding sleeve 451 vibrates up and down, thereby reducing the impact of impact and vibration on the third disk 45. Above the sliding sleeve 451, the limiting portion 453 fixedly provided on the rotating shaft 51 has the function of limiting the vibration range of the sliding sleeve 451, preventing the sliding sleeve 451 from exceeding the design allowable range during the vibration process, thereby ensuring the stability of the third disk 45. During the up and down sliding process of the sleeve 451, in order to reduce friction and enable the sleeve 451 to slide more smoothly, the ball 4511 set in the gap between the sleeve 451 and the rotating shaft 51 reduces the direct contact between the sleeve 451 and the rotating shaft 51, reduces the friction, and makes the movement of the sleeve 451 smoother.

[0044] See also Figure 3-Figure 5 and Fig.10As shown, the vibration structure 6 includes a force-bearing portion 61 fixedly arranged on the third disk body 45, and a force-applying portion 62 fixedly arranged on the tank body 1. When the third disk body 45 rotates to cause the force-bearing portion 61 to pass through the force-applying portion 62, the third disk body 45 is in an upward moving state, and when the third disk body 45 rotates to cause the force-bearing portion 61 to pass through the force-applying portion 62, the third disk body 45 is in a downward resetting state under its own gravity.

[0045] When the third disk 45 rotates, the force-bearing portion 61 on the third disk 45 approaches the force-applying portion 62 on the tank body 1, and the force-bearing portion 61 begins to contact the force-applying portion 62. Due to the action of the force-applying portion 62, the force-bearing portion 61 is pushed upward, causing the third disk 45 to move upward. In the process of the force-bearing portion 61 passing through the force-applying portion 62, the third disk 45 will continue to move upward under the thrust of the force-applying portion 62. This upward movement is short-lived and only occurs at the moment when the force-bearing portion 61 contacts the force-applying portion 62. When the third disk 45 continues to rotate, after the force-bearing portion 61 leaves the force-applying portion 62, the force-applying portion 62 no longer generates an upward thrust on the force-bearing portion 61. At this time, the third disk 45 begins to reset downward under the action of its own gravity. In this process, the third disk 45 will experience a complete up and down vibration.

[0046] See also Figure 3-Figure 5 and Fig.10 As shown, the force-bearing part 61 is specifically a spherical structure, and the force-applying part 62 is specifically a plate-like structure. Several force-bearing parts 61 are evenly distributed on the third disk body 45 around its circumferential direction, and the force-applying part 62 has a slope on the side facing the rotation direction of the third disk body 45 that can guide the force-bearing part 61 to rise.

[0047] When the third disk 45 rotates until the force-bearing portion 61 thereon approaches the force-applying portion 62, the force-bearing portion 61 begins to contact the force-applying portion 62. The force-applying portion 62 has a slope on one side facing the rotation direction of the third disk 45, which can guide the force-bearing portion 61 to gradually rise. After the force-bearing portion 61 contacts the slope of the force-applying portion 62, due to the inclination angle of the slope, the force-bearing portion 61 moves upward along the slope, so that the force-bearing portion 61 can rise smoothly and stably, avoiding sudden impact. As the third disk 45 continues to rotate, the force-bearing portion 61 will reach the highest point of the slope of the force-applying portion 62. At this time, the maximum thrust received by the force-bearing portion 61 causes it to move upward to the maximum height. Once the force-bearing portion 61 passes the highest point of the force-applying portion 62 and continues to rotate, the force-applying portion 62 no longer generates an upward thrust on the force-bearing portion 61. At this time, the force-bearing portion 61 loses support and begins to reset downward under the action of gravity. Since the third disk 45 has a plurality of force-bearing portions 61 evenly distributed around its circumference, these force-bearing portions 61 will pass through the force-applying portion 62 at different time points in sequence, forming a continuous vibration effect. Each force-bearing portion 61 will undergo the above process, thereby ensuring that the third disk 45 continues to vibrate during the entire rotation process.

[0048] See also Figure 2-Figure 5 and Figure 8 As shown, the rotary connector 5 is specifically a bearing structure, and sealing gaskets 53 are provided at the upper end and the lower end of the rotary connector 5.

[0049] When the metal mesh 21 rotates, the sealing gasket 53 will maintain close contact with the movement of the rotating connector 5. During long-term operation, the sealing gasket 53 will continue to protect the inside of the rotating connector 5 from the influence of the external environment, effectively preventing pollutants from entering the rotating connector 5, thereby extending the service life of the rotating connector 5.

[0050] See also Figure 2-Figure 6 As shown, the rotary driver 52 includes a nozzle 521 fixedly arranged on the tank body 1, and a power structure fixedly arranged on the upper surface of the first disk body 43 for using the water flow sprayed by the nozzle 521 as a power source. The nozzle direction of the nozzle 521 is directly opposite to the power structure. When the nozzle 521 sprays water, the water flow impacts the power structure to cause the first disk body 43 to be in a continuous rotation state, thereby indirectly driving the two metal meshes 21 to be in a rotation state at the same time through the rotating shaft 51, so that impurities attached to the surface of the metal mesh 21 are in a falling-off state under the action of centrifugal force and gravity.

[0051] The power structure includes a plurality of guide blocks 522 uniformly distributed in the circumferential direction around the first disk body 43, and the guide blocks 522 have guide surfaces inclined outward. When the water flow hits the guide blocks 522, the first disk body 43 generates a rotational force. Due to the arrangement of the plurality of guide blocks 522, the first disk body 43 continues to rotate under the support of the water flow. At the same time, the water flow sprayed by the nozzle 521 hits the upper surface of the first disk body 43, thereby avoiding the accumulation of impurities at the drainage port 512 of the rotating shaft 51.

[0052] The present invention can effectively capture particles of different sizes in dust and gas through the synergistic effect of the upper water membrane component 3 and the lower water membrane component 2, combined with the rotation method. The lower water membrane component 2 initially filters larger particles, and the upper water membrane component 3 further filters smaller particles. In this process, the drainage channel 4 prevents water flow interference, and the rotation method of the metal mesh 21 improves the capture efficiency and reduces blockage, so that the atomizer 22 forms a uniform water film, and passes through the first-level water curtain 41 and the second-level water curtain 42 in the process of dust and gas upward flow, further achieving a multi-stage filtration effect, significantly improving the dust removal efficiency, and ensuring the quality of the exhaust gas.

[0053] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A slag pool water film dust removal internal circulation system, comprising a tank body (1), a water film dust removal unit, a wastewater treatment unit and a clean water circulation unit, wherein the tank body (1) has an air inlet (11) for dust gas in the slag pool to enter the tank body (1) and an air outlet (12) for clean gas to be discharged; It is characterized in that The water film dust removal unit comprises a lower water film assembly (2) and an upper water film assembly (3) which are arranged on the upper half of a tank body (1) and have the same structure, and a drainage channel (4) for preventing the falling water flow from affecting the water film formation of the lower water film assembly (2), wherein the drainage channel (4) is located between the lower water film assembly (2) and the upper water film assembly (3); The lower water membrane assembly (2) and the upper water membrane assembly (3) both comprise a metal mesh (21) coaxial with the tank body (1), and an atomizer (22) for forming a water film on the metal mesh (21); the metal mesh (21) is capable of rotating around its axis in the tank body (1); a rotating connector (5) for mounting the metal mesh (21) is provided in the tank body (1); a rotating shaft (51) is coaxially and fixedly provided between the two metal meshes (21); and a rotating driver (52) for driving the rotating shaft (51) to rotate is provided in the tank body (1); The rotating shaft (51) has a water collection channel (511) extending upward from its lower end along its axial direction, and a drainage port (512) is provided on the surface of the rotating shaft (51) for the drainage channel (4) to direct water into the water collection channel (511).

2. The slag pool water film dust removal internal circulation system according to claim 1 is characterized in that: A primary water curtain (41) and a secondary water curtain (42) in a flowing state formed by a continuously falling water flow are provided in the drainage channel (4); the secondary water curtain (42) is located above the primary water curtain (41); when the lower water membrane assembly (2) and the upper water membrane assembly (3) are started simultaneously, the dust moves upward in a state of passing through the lower water membrane assembly (2), the primary water curtain (41), the secondary water curtain (42) and the upper water membrane assembly (3) in sequence.

3. The slag pool water film dust removal internal circulation system according to claim 2 is characterized in that: The drainage channel (4) is an S-shaped meandering channel structure. A first disk (43), a second disk (44) and a third disk (45) are arranged from bottom to top in the tank body (1). The first disk (43), the second disk (44) and the third disk (45) together with the rotating shaft (51) and the tank body (1) form the drainage channel (4). The first disk (44) and the first disk (43) form the first-level water curtain (41) through the continuous flow of water from top to bottom between the second disk (44) and the first disk (43). The second-level water curtain (42) is formed through the continuous flow of water from top to bottom between the third disk (45) and the second disk (44).

4. The slag pool water film dust removal internal circulation system according to claim 3 is characterized in that: The first disk (43) and the third disk (45) are both transmission-connected to the rotating shaft (51); the second disk (44) is fixedly connected to the tank (1); a gap is left between the first disk (43) and the third disk (45) relative to the tank (1) for gas to flow upwards; a gap is left between the second disk (44) and the rotating shaft (51) for gas to flow upwards; a vibration structure (6) is provided in the tank (1) for loosening impurities on the surface of the third disk (45); when the rotating shaft (51) rotates, the first disk (43) and the third disk (45) are in a synchronous and co-rotating state relative to the second disk (44); and the rotating third disk (45) is in an up-and-down vibration state under the action of the vibration structure (6).

5. The slag pool water film dust removal internal circulation system according to claim 4 is characterized in that: The upper surface of the third disk (45) is an outer inclined surface capable of accelerating the flow of water toward the tank body (1), and the upper surfaces of the first disk (43) and the second disk (44) are both inner inclined surfaces capable of accelerating the flow of water toward the rotation axis (51), and the upper surface of the first disk (43) is aligned with the lowest position of the drainage port (512) on the rotation axis (51).

6. The slag pool water film dust removal internal circulation system according to claim 4 is characterized in that: A sliding sleeve (451) fixedly connected to the third disk body (45) is provided on the rotating shaft (51); an elastic connecting member (452) for achieving a buffering effect is fixedly provided between the lower end of the sliding sleeve (451) and the rotating shaft (51); and a limiting portion (453) for limiting a vibration range is fixedly provided on the rotating shaft (51) and located above the sliding sleeve (451).

7. The slag pool water film dust removal internal circulation system according to claim 4 is characterized in that: The vibration structure (6) includes a force-bearing portion (61) fixedly arranged on the third disk body (45), and a force-applying portion (62) fixedly arranged on the tank body (1); when the third disk body (45) rotates so that the force-bearing portion (61) passes through the force-applying portion (62), the third disk body (45) is in an upward moving state; and when the third disk body (45) rotates so that the force-bearing portion (61) passes through the force-applying portion (62), the third disk body (45) is in a downward returning state under its own weight.

8. The slag pool water film dust removal internal circulation system according to claim 7 is characterized in that: The force-bearing portion (61) is specifically a spherical structure, and the force-applying portion (62) is specifically a plate-shaped structure. A plurality of the force-bearing portions (61) are evenly distributed on the third disk body (45) around its circumference, and the force-applying portion (62) has a slope on one side facing the rotation direction of the third disk body (45) that can guide the force-bearing portion (61) to rise.

9. The slag pool water film dust removal internal circulation system according to claim 1 is characterized in that: The rotating connection member (5) is specifically a bearing structure, and sealing gaskets (53) are provided at the upper end and the lower end of the rotating connection member (5).

10. The slag pool water film dust removal internal circulation system according to claim 1, characterized in that: The rotary driver (52) comprises a nozzle (521) fixedly arranged on the tank body (1), and a power structure fixedly arranged on the upper surface of the first disk body (43) for using the water flow sprayed by the nozzle (521) as a power source, wherein the nozzle of the nozzle (521) is directly opposite to the power structure, and when the nozzle (521) sprays the water flow, the water flow impacts the power structure, causing the first disk body (43) to be in a continuous rotation state, thereby indirectly driving the two metal meshes (21) to be in a rotation state at the same time through the rotating shaft (51), so that impurities attached to the surface of the metal meshes (21) are in a falling-off state under the action of centrifugal force and gravity.

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