Thermal power plant steam turbine wastewater regular drainage and recovery device

Abstract

The invention discloses a thermal power plant steam turbine wastewater fixed-drainage recovery device, and relates to the technical field of wastewater fixed-drainage recovery, the device comprises a treatment cylinder, a filter hopper is fixedly mounted in the treatment cylinder, a filter area is arranged at the bottom of the inner side wall of the filter hopper, a plurality of filter holes are formed in the filter area, and a collection structure is arranged at the upper end of the filter hopper. Through cooperation of the collecting structure, the filtering hopper and the residue collecting piece, the filtering holes of the filtering hopper preliminarily filter wastewater, and impurities are intercepted in a filtering area; a scraping plate of the collecting structure is used for scraping along the surface of a filtering area, so that the impurities are thoroughly removed and enter a rotating cylinder through a slag inlet; the fixed rod and the conveying blade are fixed to the filter hopper and are kept static when the rotating cylinder rotates, and impurities are lifted to a slag discharging opening to be discharged through relative movement; the discharged impurities fall on a slag discharging inclined block of the slag collecting piece and slide into a slag collecting groove along an inclined plane, regular discharging or follow-up treatment is facilitated, and high efficiency and automation of wastewater treatment are achieved through the design.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater fixed-discharge recovery, in particular to a wastewater fixed-discharge recovery device for a steam turbine in a thermal power plant. Background Art

[0002] Thermal power plants are the key link in power supply, and their core equipment, steam turbines, play a vital role in the process of converting steam energy into electrical energy. However, while the steam turbines are running efficiently, they also produce a certain amount of wastewater, which contains high salt, alkalinity and other impurities. If these wastewaters are discharged directly without proper treatment, they will not only pollute the environment, but may also cause damage to the steam turbines themselves and downstream equipment, such as causing serious problems such as steam-water co-evaporation and metal caustic embrittlement.

[0003] Traditional turbine wastewater treatment methods have many limitations. On the one hand, filtration and sewage discharge operations often rely on manual intervention, which is inefficient and difficult to ensure the continuity and stability of treatment; on the other hand, there is a lack of effective collection and treatment methods for impurities and waste generated during the treatment process, which can easily cause secondary pollution to the environment.

[0004] Based on this, a fixed discharge recovery device for steam turbine wastewater in a thermal power plant is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0005] The object of the present invention is to provide a device for discharging and recovering waste water from a steam turbine in a thermal power plant to solve the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A wastewater fixed discharge recovery device for steam turbines in a thermal power plant comprises a treatment cylinder, a water inlet pipe is fixedly arranged on the top of the left side wall of the treatment cylinder, a filter bucket is fixedly installed inside the treatment cylinder, a filter area is arranged at the bottom of the inner side wall of the filter bucket, a plurality of filter holes are arranged at the position of the filter area, a buffer inclined plate is slidably arranged inside the treatment cylinder, and the buffer inclined plate is located above the filter bucket, the upper end of the buffer inclined plate is fixedly connected to the top of the water inlet pipe through a damping buffer, the buffer inclined plate is located below the water inlet of the water inlet pipe, a collection structure is arranged on the upper end of the filter bucket, and the treatment cylinder A main cylinder is fixed at the lower end, a dosing tube is symmetrically fixed on the main cylinder, a mixing cylinder is arranged inside the main cylinder, a mixing structure is arranged inside the mixing cylinder, a driving structure for providing power to the collecting structure and the mixing structure is arranged at the upper end of the processing cylinder, a separation frame is fixed at the lower end of the main cylinder, a water outlet pipe is fixed at the lower end of the mixing cylinder, the mixing cylinder is connected with the separation frame through the water outlet pipe, a separation structure is arranged inside the separation frame, a drainage bucket is fixed at the lower end of the separation frame, a drainage pipe is fixed at the lower end of the drainage bucket, and a slag discharge inclined plate is fixed at the left end of the separation frame.

[0008] Preferably, the collecting structure includes a rotating drum rotatably mounted on the upper end of the filter bucket, the upper end of the rotating drum passes through the upper end of the processing drum, the rotating drum is rotatably connected to the processing drum, a slag inlet is provided at the bottom of the side wall of the rotating drum, a fixing rod is installed inside the rotating drum, the fixing rod is fixed to the filter bucket, a transport leaf is fixed on the outer wall of the fixing rod, a plurality of drainage holes are provided on the transport leaf, a scraper is fixed at the bottom of the outer side wall of the rotating drum, the scraper is in contact with the filtering area, the scraper corresponds to the position of the slag inlet, a slag discharge port is provided at the top of the outer side wall of the rotating drum, a gear ring is fixed on the outer side wall of the rotating drum, the gear ring is located at the upper end of the processing drum, and the gear ring is connected to the driving structure.

[0009] Preferably, a plurality of pillars are fixed to the upper end of the processing cylinder, the upper ends of the pillars are fixedly connected to a slag collecting piece, a slag collecting groove is provided on the slag collecting piece, a slag discharge inclined block is fixed to the middle part of the upper end of the slag collecting piece, the slag discharge inclined block is rotatably connected to the rotating cylinder, and the slag discharge inclined block is located below the slag discharge port.

[0010] Preferably, the driving structure includes a motor installed on the right side of the processing cylinder, the output end of the motor is fixedly connected to a main wheel, the main wheel is connected to a slave wheel through a transmission belt, a lower end of the slave wheel is fixedly connected to a main gear, the main gear is rotatably installed on the upper end of the processing cylinder, and the main gear is meshed with a gear ring, and the gear ring is connected to a stirring structure.

[0011] Preferably, the stirring structure includes a main gear and three slave gears rotatably installed on the upper end of the processing cylinder, the main gear and the three slave gears are all meshed with the gear ring, and the lower ends of the main gear and the three slave gears are fixed with connecting rods, the connecting rods penetrate the processing cylinder and the filter bucket and extend to the interior of the stirring cylinder, and a plurality of stirring rods are fixed to the outer wall of the connecting rod located inside the stirring cylinder, and the filter bucket is provided with a through hole compatible with the connecting rod.

[0012] Preferably, the separation structure includes two motors installed on a separation frame, a main wheel two is fixed to the output end of the two motors, the two main wheels are connected to the cleaning structure through two transmission belts, an active roller is fixed to the end of the two main wheels away from the two motors, the active roller is rotatably installed inside the separation frame, a driven roller is rotatably installed on the side of the separation frame close to the slag discharge inclined plate, a separation belt is provided on the outer walls of the active roller and the driven roller, and a plurality of separation openings are provided on the separation belt.

[0013] Preferably, the cleaning structure includes a follower wheel 2 rotatably mounted on the separation frame, the follower wheel 2 being transmission-connected to the main wheel 2 via a transmission belt 2, one end of the cleaning structure is fixedly connected to a cleaning roller, the cleaning roller is rotatably mounted at the connection between the separation frame and the slag discharge inclined plate, and the cleaning roller is in contact with the outer surface of the separation belt.

[0014] Preferably, a scraping block is fixed on the slag discharge inclined plate, and the scraping block is in contact with the outer surface of the cleaning roller.

[0015] Preferably, a plurality of PH water quality monitors are installed inside the mixing drum, a water outlet valve is installed on the water outlet pipe, and the PH water quality monitor is connected to the water outlet valve via an external controller.

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

[0017] 1. The present invention cooperates with a collection structure, a filter bucket and a slag collecting part, wherein the filter hole of the filter bucket performs preliminary filtration on the wastewater and intercepts impurities in the filter area; the scraper of the collection structure scrapes along the surface of the filter area to ensure that the impurities are completely removed and enter the rotating drum through the slag inlet; the fixed rod and the transport leaf fixed to the filter bucket remain stationary when the rotating drum rotates, and the impurities are lifted to the slag discharge port for discharge through relative movement; the discharged impurities fall on the slag discharge inclined block of the slag collecting part and slide into the slag collecting trough along the inclined surface, which is convenient for regular discharge or subsequent treatment. This design realizes high efficiency and automation of wastewater treatment.

[0018] 2. The present invention cooperates with the pH water quality monitor and the outlet valve through the stirring structure. After being filtered, the wastewater continues to flow downward into the mixing drum. At the same time, a suitable neutralizer is added through the dosing tube, and the stirring structure is immediately started to ensure that the wastewater and the neutralizer can be fully mixed to achieve a rapid and uniform neutralization reaction. This process not only improves the efficiency of wastewater treatment, but also effectively guarantees the stability of the effluent water quality; finally, when the wastewater is neutralized and reaches the preset water quality standard, the outlet valve will automatically open, allowing the treated wastewater to be smoothly discharged from the system for subsequent use or discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the left side of the present invention.

[0021] Figure 3 For the present invention Figure 2 Structural cross-section diagram of section A-A.

[0022] Figure 4 It is a structural cross-sectional view of the collecting structure of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the driving structure and the stirring structure of the present invention.

[0024] Figure 6 It is a structural cross-sectional view of the separation frame of the present invention.

[0025] Notes on reference numerals: 1. treatment cylinder; 11. water inlet pipe; 12. support; 13. damping buffer; 14. buffer inclined plate; 2. filter bucket; 21. filter area; 211. filter hole; 22. through hole; 23. collection structure; 231. rotating cylinder; 232. slag discharge port; 233. gear ring; 234. scraper; 235. fixing rod; 236. transport blade; 2361. drainage hole; 24. slag collecting part; 241. slag collecting trough; 242. slag discharge inclined block; 3. driving structure; 301. motor 1; 302. main wheel 1; 303. transmission belt 1; 304. slave wheel 1; 305. Main gear; 4, stirring structure; 401, slave gear; 402, connecting rod; 403, stirring rod; 5, main cylinder; 51, stirring cylinder; 52, water outlet pipe; 53, water outlet valve; 54, dosing pipe; 55, PH water quality monitor; 6, separation frame; 61, drainage bucket; 62, drainage pipe; 63, slag discharge inclined plate; 64, slag scraper; 65, separation structure; 651, motor 2; 652, main wheel 2; 653, active roller; 654, separation belt; 655, separation port; 656, driven roller; 657, transmission belt 2; 66, cleaning structure; 661, slave wheel 2; 662, cleaning roller. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In one embodiment, Figure 1-Figure 6 As shown, a wastewater recovery device for steam turbines in a thermal power plant comprises a treatment cylinder 1, a water inlet pipe 11 is fixedly arranged on the top of the left side wall of the treatment cylinder 1, a filter bucket 2 is fixedly installed inside the treatment cylinder 1, a filter area 21 is arranged at the bottom of the inner wall of the filter bucket 2, a plurality of filter holes 211 are opened at the position of the filter area 21, a buffer inclined plate 14 is slidably arranged inside the treatment cylinder 1, and the buffer inclined plate 14 is located above the filter bucket 2, the upper end of the buffer inclined plate 14 is fixedly connected to the top of the water inlet pipe 11 through a damping buffer member 13, the buffer inclined plate 14 is located below the water inlet of the water inlet pipe 11, a collection structure 23 is arranged on the upper end of the filter bucket 2, and the lower end of the treatment cylinder 1 is provided with a filter area 211. A main cylinder 5 is fixed at the end, and a dosing tube 54 is symmetrically fixed on the main cylinder 5. A mixing cylinder 51 is arranged inside the main cylinder 5, and a mixing structure 4 is arranged inside the mixing cylinder 51. A driving structure 3 for providing power to the collecting structure 23 and the mixing structure 4 is provided at the upper end of the treatment cylinder 1. A separation frame 6 is fixed at the lower end of the main cylinder 5, and a water outlet pipe 52 is fixed at the lower end of the mixing cylinder 51. The mixing cylinder 51 is connected with the separation frame 6 through the water outlet pipe 52. A separation structure 65 is arranged inside the separation frame 6. A drainage bucket 61 is fixed at the lower end of the separation frame 6, and a drainage pipe 62 is fixed at the lower end of the drainage bucket 61. A slag discharge inclined plate 63 is fixed to the left end of the separation frame 6.

[0028] In this embodiment, wastewater is introduced into the treatment barrel 1 through the water inlet pipe 11. The wastewater first contacts the buffer inclined plate 14, which slows down the water flow speed and prevents the water flow from directly impacting the filter bucket 2. The wastewater then enters the filter bucket 2, passes through the filter holes 211 of the filter area 21, and larger impurities are filtered out and remain in the filter bucket 2. The filtered wastewater continues to flow downward.

[0029] The wastewater enters the mixing drum 51, and at the same time, a suitable neutralizer is added through the dosing pipe 54. At this time, the driving structure 3 starts to work and provides power for the mixing structure 4. The mixing structure 4 starts to stir the wastewater to ensure that the wastewater is evenly mixed with the neutralizer in the mixing drum 51.

[0030] The stirring process can accelerate the mixing reaction of the wastewater and the neutralizer to obtain the best neutralization effect. The stirred wastewater enters the separation frame 6 through the outlet pipe 52. In the separation frame 6, the separation structure 65 further separates the wastewater to separate fine impurities from the wastewater.

[0031] The separated impurities flow out of the device along the slag discharge inclined plate 63. The clean water after separation treatment flows into the drainage bucket 61. The clean water is then discharged through the drainage pipe 62 and can be used in other production processes of the thermal power plant or for other reuse.

[0032] In an optional embodiment, the collecting structure 23 includes a rotating drum 231 rotatably mounted on the upper end of the filter bucket 2, the upper end of the rotating drum 231 passes through the upper end of the processing drum 1, the rotating drum 231 is rotatably connected to the processing drum 1, a slag inlet is provided at the bottom of the side wall of the rotating drum 231, a fixing rod 235 is installed inside the rotating drum 231, the fixing rod 235 is fixed to the filter bucket 2, a transport leaf 236 is fixed on the outer wall of the fixing rod 235, a plurality of drainage holes 2361 are provided on the transport leaf 236, a scraper 234 is fixed to the bottom of the outer wall of the rotating drum 231, the scraper 234 is in contact with the filtering area 21, and the scraper 234 corresponds to the position of the slag inlet, a slag discharge port 232 is provided at the top of the outer wall of the rotating drum 231, a gear ring 233 is fixed to the outer wall of the rotating drum 231, the gear ring 233 is located at the upper end of the processing drum 1, and the gear ring 233 is connected to the driving structure 3.

[0033] It should be noted that when the driving structure 3 is started, it will drive the rotating cylinder 231 to rotate through the gear ring 233. At the same time, the scraper 234 will scrape along the surface of the filter area 21 to ensure that impurities are effectively removed from the filter bucket 2 and enter the interior of the rotating cylinder 231 through the slag inlet.

[0034] Since the fixing rod 235 and the transport blade 236 are fixed to the filter bucket 2, and the rotating cylinder 231 rotates with the filter bucket 2, when the rotating cylinder 231 rotates, the transport blade 236 is fixed, and the transport blade 236 rotates relative to the rotating cylinder 231, thereby transporting the impurities attached to the filter area 21 upward to the slag discharge port 232.

[0035] Opening on transport leaf 236 allows waste water to pass through, but prevents larger impurities from passing through. Like this, waste water can continue to flow downward, and impurities are captured and transported by transport leaf 236.

[0036] In an optional embodiment, a plurality of pillars 12 are fixed to the upper end of the processing cylinder 1, and the upper ends of the pillars 12 are fixedly connected to a slag collecting part 24, a slag collecting groove 241 is provided on the slag collecting part 24, and a slag discharge inclined block 242 is fixed to the middle part of the upper end of the slag collecting part 24, the slag discharge inclined block 242 is rotatably connected to the rotating cylinder 231, and the slag discharge inclined block 242 is located below the slag discharge port 232.

[0037] It should be noted that, after being discharged from the slag discharge port 232, the impurities fall on the slag discharge inclined block 242. The impurities slide into the slag collecting tank 241 along the inclined surface of the slag discharge inclined block 242. The impurities in the slag collecting tank 241 can be discharged regularly or further processed.

[0038] In an optional embodiment, the driving structure 3 includes a motor 301 installed on the right side of the processing cylinder 1, the output end of the motor 301 is fixedly connected to a main wheel 302, the main wheel 302 is connected to a slave wheel 304 through a transmission belt 303, the lower end of the slave wheel 304 is fixedly connected to a main gear 305, the main gear 305 is rotatably installed on the upper end of the processing cylinder 1, and the main gear 305 is meshed with a gear ring 233, and the gear ring 233 is connected to the stirring structure 4.

[0039] It should be noted that when the motor 301 is running, it drives the main wheel 302 to rotate, and the main wheel 302 transmits power to the slave wheel 304 through the transmission belt 303, and the slave wheel 304 and the main gear 305 fixed at the lower end rotate accordingly. The rotation of the main gear 305 drives the gear ring 233 meshing with it to rotate.

[0040] The rotation of the gear ring 233 indirectly drives the stirring structure 4 to perform stirring operations and the collecting structure 23 to collect impurities.

[0041] In an optional embodiment, the stirring structure 4 includes a main gear 305 and three slave gears 401 rotatably installed on the upper end of the treatment cylinder 1, and the main gear 305 and the three slave gears 401 are all meshed with the gear ring 233. The lower ends of the main gear 305 and the three slave gears 401 are fixed with connecting rods 402, and the connecting rod 402 passes through the treatment cylinder 1 and the filter bucket 2 and extends to the inside of the stirring cylinder 51. The outer wall of the connecting rod 402 located inside the stirring cylinder 51 is fixed with a plurality of stirring rods 403, and the filter bucket 2 is provided with a through hole 22 compatible with the connecting rod 402.

[0042] It should be noted that the main gear 305 drives the three slave gears 401 to rotate through the gear ring 233. The rotation of the main gear 305 and the slave gear 401 is transmitted to the stirring rod 403 through the connecting rod 402. The stirring rod 403 rotates in the stirring drum 51 to stir the wastewater, thereby accelerating the mixing reaction of the wastewater with the neutralizer in the stirring drum 51, thereby accelerating the pH value of the wastewater to reach the discharge standard.

[0043] In an optional embodiment, the separation structure 65 includes a second motor 651 installed on the separation frame 6, and a second main wheel 652 is fixed to the output end of the second motor 651. The second main wheel 652 is connected to the cleaning structure 66 through a second transmission belt 657. An active roller 653 is fixed to the end of the second main wheel 652 away from the second motor 651. The active roller 653 is rotatably installed inside the separation frame 6, and a driven roller 656 is rotatably installed on one side of the separation frame 6 close to the slag discharge inclined plate 63. The outer walls of the active roller 653 and the driven roller 656 are provided with a separation belt 654, and a plurality of separation openings 655 are opened on the separation belt 654.

[0044] It should be noted that when the second motor 651 is running, it drives the second main wheel 652 to rotate. The second main wheel 652 drives the cleaning structure 66 to work through the second transmission belt 657, and the rotation of the second main wheel 652 further drives the active roller 653 to rotate. The active roller 653 and the driven roller 656 jointly support and drive the separation belt 654 to operate. The mixture of waste water and waste residue falls on the running separation belt 654, and the waste residue is intercepted through a plurality of separation ports 655 opened on the separation belt 654, and the waste water flows away through the separation structure.

[0045] The retained waste slag is discharged through the slag discharge inclined plate 63.

[0046] In an optional embodiment, the cleaning structure 66 includes a slave wheel 661 rotatably mounted on the separation frame 6, and the slave wheel 661 is transmission-connected to the main wheel 652 via a transmission belt 657. One end of the cleaning structure 66 is fixedly connected to a cleaning roller 662, and the cleaning roller 662 is rotatably mounted at the connection between the separation frame 6 and the slag discharge inclined plate 63, and the cleaning roller 662 is in contact with the outer surface of the separation belt 654.

[0047] It should be noted that when the motor 651 is running, it drives the main wheel 652 to rotate, and the main wheel 652 transmits power to the slave wheel 661 through the transmission belt 657. The slave wheel 661 drives the cleaning roller 662 to rotate. The rotating cleaning roller 662 fits tightly against the outer surface of the separation belt 654 to scrape off the residue. The residue after cleaning may be discharged through the slag discharge inclined plate 63.

[0048] In an optional embodiment, a scraping block 64 is fixed on the slag discharge inclined plate 63 , and the scraping block 64 is in contact with the outer surface of the cleaning roller 662 .

[0049] It should be noted that when the cleaning roller 662 passes through the scraping block 64 , the scraping block 64 will further scrape off the residue on the cleaning roller 662 .

[0050] The cleaned residue slides down along the slag discharge inclined plate 63 under the action of gravity and is finally discharged from the system.

[0051] In an optional embodiment, a plurality of PH water quality monitors 55 are installed inside the mixing drum 51, a water outlet valve 53 is installed on the water outlet pipe 52, and the PH water quality monitors 55 are connected to the water outlet valve 53 via an external controller.

[0052] It should be noted that during the wastewater treatment process, the pH water quality monitor 55 continuously monitors the pH value of the water quality in the mixing drum 51 and transmits the data to the external controller in real time. The external controller compares the received pH value data with the preset discharge standard. If the pH value of the water quality meets the discharge standard, the external controller sends a signal to the outlet valve 53 to open it and allow the wastewater to be discharged. If the pH value of the water quality does not meet the discharge standard, the external controller keeps the outlet valve 53 closed.

[0053] The above embodiment discloses a fixed discharge recovery device for steam turbine wastewater in a thermal power plant, wherein the wastewater is introduced into the treatment tube 1 through the water inlet pipe 11, and the wastewater first contacts the buffer inclined plate 14, and the buffer inclined plate 14 is fixedly connected to the top of the water inlet pipe 11 through the damping buffer member 13, which effectively slows down the water flow speed and prevents the water flow from directly impacting the filter bucket 2, thereby protecting the filter bucket 2 and extending its service life. The wastewater then flows into the filter bucket 2, passes through the filter holes 211 of the filter area 21, and larger impurities are filtered out and remain in the filter bucket 2.

[0054] When the driving structure 3 (motor 301) is started, it drives the main gear 305 to rotate through the main wheel 302, the transmission belt 303 and the slave wheel 304. The main gear 305 is meshed with the gear ring 233. The rotation of the gear ring 233 drives the rotating cylinder 231 to rotate. The scraper 234 at the bottom of the rotating cylinder 231 scrapes along the surface of the filter area 21 to remove impurities from the filter bucket 2 and enter the rotating cylinder 231 through the slag inlet. At the same time, since the fixing rod 235 and the transport blade 236 are fixed to the filter bucket 2, when the rotating cylinder 231 rotates, the transport blade 236 rotates relative to the rotating cylinder 231 to transport the impurities upward to the slag discharge port 232. After the impurities are discharged from the slag discharge port 232, they fall on the slag discharge inclined block 242 of the slag collecting part 24 and slide into the slag collecting trough 241 along the inclined surface, which is convenient for regular discharge or further treatment.

[0055] After being filtered, the wastewater continues to flow downward into the mixing drum 51, and a suitable neutralizer is added through the dosing tube 54. The rotation of the main gear 305 not only drives the collection structure 23 to work, but also drives the three slave gears 401 to rotate through the gear ring 233. The connecting rod 402 at the lower end of the main gear 305 and the slave gear 401 drives the stirring rod 403 to rotate in the mixing drum 51 to stir the wastewater, ensure that the wastewater and the neutralizer are evenly mixed, and accelerate the neutralization reaction.

[0056] At the same time, a suitable neutralizing agent is added through the dosing pipe 54.

[0057] During the wastewater treatment process, the pH water quality monitor 55 continuously monitors the pH value of the water in the mixing drum 51 and transmits the data to the external controller in real time. The external controller compares the received pH value data with the preset discharge standard. If the pH value of the water quality meets the discharge standard, the external controller sends a signal to the outlet valve 53 to open it and allow the wastewater to be discharged through the drain pipe 62; if the pH value of the water quality does not meet the discharge standard, the external controller keeps the outlet valve 53 closed and may trigger an alarm or send a prompt message to the operator so that further wastewater treatment measures can be taken.

[0058] The stirred wastewater enters the separation frame 6 through the outlet pipe 52. The motor 2 651 drives the main wheel 2 652 to rotate, and the main wheel 2 652 drives the cleaning structure 66 and the active roller 653 to rotate through the transmission belt 2 657. The active roller 653 and the driven roller 656 jointly support and drive the separation belt 654 to operate. The mixture of wastewater and waste residue falls on the running separation belt 654, and the waste residue is intercepted through the separation port 655 on the separation belt 654. The wastewater flows into the drainage bucket 61 below through the separation port 655 and is finally discharged through the drainage pipe 62. The cleaning roller 662 of the cleaning structure 66 fits tightly on the outer surface of the separation belt 654 to scrape off the residue. When the cleaning roller 662 passes through the scraping block 64, the scraping block 64 will further scrape off the residue on the cleaning roller 662. The cleaned residue is discharged through the slag discharge inclined plate 63.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fixed discharge and recovery device for steam turbine wastewater in a thermal power plant, characterized in that: The invention comprises a treatment cylinder (1), wherein a water inlet pipe (11) is fixed at the top of the left side wall of the treatment cylinder (1), the inside of the treatment cylinder (1) is fixedly mounted on a filter bucket (2), a filter area (21) is provided at the bottom of the inner side wall of the filter bucket (2), a plurality of filter holes (211) are provided at the position of the filter area (21), a buffer inclined plate (14) is slidably provided inside the treatment cylinder (1), and the buffer inclined plate (14) is located above the filter bucket (2), the upper end of the buffer inclined plate (14) is fixedly connected to the top of the water inlet pipe (11) through a damping buffer member (13), the buffer inclined plate (14) is located below the water inlet of the water inlet pipe (11), the upper end of the filter bucket (2) is provided with a collecting structure (23), the lower end of the treatment cylinder (1) is fixed with a main cylinder (5), the main cylinder A dosing tube (54) is symmetrically fixed on the upper side of the main cylinder (5); a mixing cylinder (51) is arranged inside the main cylinder (5); a mixing structure (4) is arranged inside the mixing cylinder (51); a driving structure (3) for providing power to the collecting structure (23) and the mixing structure (4) is arranged at the upper end of the treatment cylinder (1); a separation frame (6) is fixed at the lower end of the main cylinder (5); a water outlet pipe (52) is fixed at the lower end of the mixing cylinder (51); the mixing cylinder (51) and the separation frame (6) are connected through the water outlet pipe (52); a separation structure (65) is arranged inside the separation frame (6); a drainage bucket (61) is fixed at the lower end of the separation frame (6); a drainage pipe (62) is fixed at the lower end of the drainage bucket (61); and a slag discharge inclined plate (63) is fixed at the left end of the separation frame (6).

2. A thermal power plant steam turbine wastewater fixed discharge and recovery device according to claim 1, characterized in that: The collecting structure (23) comprises a rotating cylinder (231) rotatably mounted on the upper end of the filter bucket (2); the upper end of the rotating cylinder (231) penetrates the upper end of the processing cylinder (1); the rotating cylinder (231) is rotatably connected to the processing cylinder (1); a slag inlet is provided at the bottom of the side wall of the rotating cylinder (231); a fixing rod (235) is installed inside the rotating cylinder (231); the fixing rod (235) is fixed to the filter bucket (2); a transport leaf (236) is fixed to the outer wall of the fixing rod (235); the transport leaf (236) A plurality of drainage holes (2361) are provided on the outer wall of the rotating cylinder (231), a scraper (234) is fixed at the bottom of the outer wall of the rotating cylinder (231), the scraper (234) is in contact with the filtering area (21), the scraper (234) corresponds to the position of the slag inlet, a slag discharge port (232) is provided at the top of the outer wall of the rotating cylinder (231), a gear ring (233) is fixed on the outer wall of the rotating cylinder (231), the gear ring (233) is located at the upper end of the processing cylinder (1), and the gear ring (233) is connected to the driving structure (3).

3. A thermal power plant steam turbine wastewater fixed discharge recovery device according to claim 2, characterized in that: A plurality of pillars (12) are fixed to the upper end of the treatment cylinder (1); the upper ends of the pillars (12) are fixedly connected to a slag collecting part (24); a slag collecting groove (241) is provided on the slag collecting part (24); a slag discharge inclined block (242) is fixed to the middle part of the upper end of the slag collecting part (24); the slag discharge inclined block (242) is rotatably connected to the rotating cylinder (231), and the slag discharge inclined block (242) is located below the slag discharge port (232).

4. A thermal power plant steam turbine wastewater fixed discharge recovery device according to claim 2, characterized in that: The driving structure (3) comprises a motor 1 (301) installed on the right side of the processing cylinder (1); the output end of the motor 1 (301) is fixedly connected to a main wheel 1 (302); the main wheel 1 (302) is connected to a slave wheel 1 (304) through a transmission belt 1 (303); the lower end of the slave wheel 1 (304) is fixedly connected to a main gear (305); the main gear (305) is rotatably installed on the upper end of the processing cylinder (1); the main gear (305) is meshed with a gear ring (233); and the gear ring (233) is connected to a stirring structure (4).

5. A thermal power plant steam turbine wastewater fixed discharge recovery device according to claim 4, characterized in that: The stirring structure (4) comprises a main gear (305) and three slave gears (401) rotatably mounted on the upper end of the treatment cylinder (1); the main gear (305) and the three slave gears (401) are all meshed with the gear ring (233); the lower ends of the main gear (305) and the three slave gears (401) are all fixed with connecting rods (402); the connecting rod (402) passes through the treatment cylinder (1) and the filter bucket (2) and extends to the inside of the stirring cylinder (51); the outer wall of the connecting rod (402) located inside the stirring cylinder (51) is fixed with a plurality of stirring rods (403); and the filter bucket (2) is provided with a through hole (22) adapted to the connecting rod (402).

6. A thermal power plant steam turbine wastewater fixed discharge recovery device according to claim 1, characterized in that: The separation structure (65) comprises a second motor (651) mounted on a separation frame (6); a second main wheel (652) is fixed to the output end of the second motor (651); the second main wheel (652) is connected to the cleaning structure (66) via a second transmission belt (657); a driving roller (653) is fixed to the end of the second main wheel (652) away from the second motor (651); the driving roller (653) is rotatably mounted inside the separation frame (6); a driven roller (656) is rotatably mounted on one side of the separation frame (6) close to the slag discharge inclined plate (63); a separation belt (654) is sleeved on the outer wall of the driving roller (653) and the driven roller (656); and a plurality of separation openings (655) are provided on the separation belt (654).

7. A thermal power plant steam turbine wastewater fixed discharge and recovery device according to claim 6, characterized in that: The cleaning structure (66) comprises a second follower wheel (661) rotatably mounted on the separation frame (6); the second follower wheel (661) is connected to the second main wheel (652) by transmission via a second transmission belt (657); one end of the cleaning structure (66) is fixedly connected to a cleaning roller (662); the cleaning roller (662) is rotatably mounted at the connection between the separation frame (6) and the slag discharge inclined plate (63); the cleaning roller (662) is in contact with the outer surface of the separation belt (654).

8. A thermal power plant steam turbine wastewater fixed discharge and recovery device according to claim 7, characterized in that: A slag scraping block (64) is fixed on the slag discharge inclined plate (63), and the slag scraping block (64) is in contact with the outer surface of the cleaning roller (662).

9. The device for recovering wastewater from steam turbines in thermal power plants according to claim 1, characterized in that: A plurality of pH water quality monitors (55) are installed inside the mixing drum (51), a water outlet valve (53) is installed on the water outlet pipe (52), and the pH water quality monitors (55) are connected to the water outlet valve (53) via an external controller.

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