An integrated mvr evaporator for wastewater treatment

Abstract

The application provides an integrated MVR evaporator for wastewater treatment, and relates to the technical field of MVR evaporators.The integrated MVR evaporator comprises a tank body, a water inlet pipe and a salt scraping assembly, a plurality of support frames are fixedly connected to the outer wall of the tank body, one end of the feed pipe is fixedly communicated with the outer wall of the tank body, the salt scraping assembly is located in the water inlet pipe, the salt scraping assembly comprises a connecting shaft and a rotating shaft, the connecting shaft is located in the water inlet pipe, the rotating shaft is located in the tank body, a plurality of annular holes are formed in the arc surface of the connecting shaft, a plurality of support rods are slidably connected to the inner wall of the annular holes, and the support rods are fixedly connected to the inner wall of the water inlet pipe.The integrated MVR evaporator can automatically drive the scraper to scrape off the crystallized salt on the inner wall of the tank body, and the scraper and the fan blade can be driven to rotate by means of the fluid power generated by the black water flow without the driving of a motor throughout the process, so that the overall energy consumption of the equipment is reduced, the energy cost is reduced, and the practicability of the MVR evaporator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of MVR evaporator, and particularly relates to an integrated MVR evaporator for wastewater treatment. BACKGROUND

[0002] The MVR evaporator is a device commonly used in wastewater treatment, energy-saving evaporation and dehydration process, which reuses the heat energy of steam by mechanical compressor, and is mainly applied to chemical industry, environmental protection and other industries.

[0003] The application with the publication number CN114853248B discloses a one-piece MVR evaporation system wastewater treatment process, and the technical scheme points are as follows: the top of the bottom plate is fixedly connected with a box body and a storage tank, the front and back surfaces of the bottom plate are movably connected with an outer sealing door through hinges, the inner cavity of the box body is provided with a wastewater treatment device, the top of the storage tank is movably connected with a top cover through a hinge, the surface of the storage tank is fixedly connected with a water pump, the output end and the input end of the water pump are fixedly communicated with a water pipe, and the inner cavity of the storage tank is provided with a filter device. The application relates to the technical field of wastewater treatment. The one-piece MVR evaporation system wastewater treatment process solves the problems that when the MVR evaporator wastewater treatment device performs high-salinity wastewater treatment, a long time is needed for treatment due to a large amount of wastewater, the obtained salt crystals need to be manually taken out from the device, and the formed salt crystals are adhered to the inner wall of the device and cannot be removed, thereby causing waste of salt crystals.

[0004] In view of the related contents in the above, the following technical defects are found: when the MVR evaporator is used, the inner wall of the tank body is attached with crystalline salt, and in the prior art, the MVR evaporator needs to be driven by a motor when treating the crystalline salt, which increases the overall energy consumption of the MVR evaporator, increases the energy cost, and reduces the practicability of the MVR evaporator. SUMMARY

[0005] The present application relates to the technical field of MVR evaporator, and particularly relates to an integrated MVR evaporator for wastewater treatment.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: An integrated MVR evaporator for wastewater treatment, comprising a tank body, a water inlet pipe and a salt scraping assembly, a plurality of support frames are fixedly connected to the outer wall of the tank body, one end of the water inlet pipe is fixedly communicated with the outer wall of the tank body, the salt scraping assembly is located inside the water inlet pipe, the salt scraping assembly comprises a connecting shaft and a rotating shaft, the connecting shaft is located inside the water inlet pipe, the rotating shaft is located inside the tank body, a circular arc surface of the connecting shaft is provided with a plurality of annular holes, the inner wall of the annular hole is slidably connected with a plurality of support rods, the support rods are fixedly connected with the inner wall of the water inlet pipe, a plurality of fan blades are fixedly connected to the circular arc surface of the connecting shaft, the fan blades are uniformly distributed on the circular arc surface of the connecting shaft, a driving bevel gear is fixedly connected to one end of the connecting shaft close to the rotating shaft, a driven bevel gear is fixedly connected to the circular arc surface of the rotating shaft, the driven bevel gear is engaged with the driving bevel gear, a plurality of connecting rods are fixedly connected to the circular arc surface of the rotating shaft, and a scraper is fixedly connected to one end of the connecting rod away from the rotating shaft, and the cutting edge of the scraper is in close contact with the inner wall of the tank body.

[0007] The effect achieved by the above components is that by setting the salt scraping assembly, the scraper can be automatically driven to scrape the crystalline salt on the inner wall of the tank body, and the whole process does not need to be driven by the motor, but only needs to be driven by the fluid power generated by the black water flow to rotate the fan blades and the scraper, which helps to reduce the overall energy consumption of the equipment, reduces the energy cost and improves the practicability of the MVR evaporator.

[0008] Preferably, the circular arc surface of the rotating shaft is rotatably connected with a fixed ring, the outer wall of the fixed ring is fixedly connected with two fixed rods, and one end of the fixed rod is fixedly connected with the inner wall of the tank body.

[0009] The effect achieved by the above components is that during the rotation of the rotating shaft, the fixed ring and the fixed rod can reinforce and support the rotating shaft, thereby improving the stability of the rotating process of the rotating shaft.

[0010] Preferably, a reinforcing rib is fixedly connected to the position where the connecting rod is connected with the scraper, and the reinforcing rib is specifically made of aluminum alloy.

[0011] The effect achieved by the above components is that by setting the reinforcing rib made of aluminum alloy at the connection between the scraper and the connecting rod, the aluminum alloy has light weight and high strength, which can effectively improve the strength of the connection between the connecting rod and the scraper.

[0012] Preferably, the connecting shaft, the driving bevel gear, the driven bevel gear, the rotating shaft, the connecting rod and the scraper are specifically made of high-density polyethylene material.

[0013] The effect achieved by the above components is that by making the connecting shaft, driving bevel gear, driven bevel gear, rotating shaft, connecting rod and scraper into high-density polyethylene, a plastic material commonly used in water flow devices, which has good corrosion resistance and strong toughness, and is lightweight, the applicability of these parts can be effectively improved.

[0014] Preferably, the inner wall of the tank is provided with a salt collection assembly, which includes a connecting plate and a collecting ring. One side of the long arm end of the connecting plate is fixedly connected to the arc surface of the rotating shaft. The outer wall of the collecting ring is fixedly connected to the inner wall of the tank. A scraper is fixedly connected to one side of the short arm end of the connecting plate. The lower surface of the scraper is in contact with the upper surface of the collecting ring. A groove is formed on the upper surface of the collecting ring. The inner wall of the groove is fitted with a scraper ring. A discharge hole is formed on the outer wall of the tank. A sealing plate is fitted to the inner wall of the discharge hole. One side of the sealing plate is fixedly connected to one side of the outer wall of the scraper ring.

[0015] The effect achieved by the above components is that, by setting up the salt collection component, the crystallized salt can be automatically scraped into the groove for collection during the process of the salt scraping component scraping the crystallized salt off the inner wall of the tank, thereby improving the ease of use of the MVR evaporator.

[0016] Preferably, a collection box is fixedly connected to the outer wall of the tank, a fixing seat is fixedly connected to the outer wall of the collection box away from the tank, an electric push rod is fixedly connected to the inner wall of the fixing seat, and the output end of the electric push rod is fixedly connected to the side of the sealing plate away from the scraper ring.

[0017] The effect achieved by the above components is as follows: when it is necessary to periodically collect the crystallized salt into the collection box, the cylinder is activated to move the sealing plate, causing the sealing plate to separate from the discharge hole. As the sealing plate moves, it also drives the scraper ring, which scrapes the crystallized salt inside the groove into the collection box. After the crystallized salt inside the groove enters the collection box, the cylinder is activated to move the sealing plate in the opposite direction. When the sealing plate blocks the discharge hole and the scraper ring is in contact with the inner wall of the groove, the operation of the electric push rod can be stopped. By setting the above structure, the crystallized salt inside the groove can be transferred to the collection box periodically and automatically without the need for personnel to remove the salt, thus improving the automation level and practicality of the MVR evaporator.

[0018] Preferably, a positioning ring is fixedly connected to the upper surface of the collecting ring, and the inner diameter of the positioning ring is equal to the inner diameter of the collecting ring.

[0019] The effect achieved by the above components is that, during the process of the scraper scraping the crystallized salt on the upper surface of the collecting ring, the positioning ring can block the crystallized salt on the collecting ring, which can effectively prevent the crystallized salt from falling off the collecting ring.

[0020] Preferably, the inner wall of the water inlet pipe is provided with a filter assembly, the filter assembly including a filter plate, the arc surface of the filter plate being in contact with the inner wall of the water inlet pipe, a plurality of filter holes being opened on the side of the filter plate, the filter holes being evenly distributed on the side of the filter plate, two sliding holes being opened on the side of the filter plate, a sliding rod being slidably inserted into the inner wall of the sliding hole, two welding plates being fixedly connected to the inner wall of the water inlet pipe, one side of the welding plate being fixedly connected to one end of the sliding rod, and an adjusting ring being threadedly connected to the arc surface of the sliding rod.

[0021] The effect achieved by the above components is as follows: by setting up a filter assembly and filter plate to pre-treat and filter the black water entering from the inlet pipe, the practicality of the MVR evaporator is improved, and the filter plate can be easily replaced by personnel after wear.

[0022] Preferably, a bearing is installed on the side of the filter plate, a plurality of scrapers are fixedly connected to one side of the inner ring of the bearing, an insertion hole is opened on the side of the inner ring of the bearing, and an insertion rod is fixedly connected to one end of the connecting shaft, the size of the insertion rod being adapted to the insertion hole.

[0023] The effect achieved by the above components is as follows: when installing the filter plate, the insert rod fixed on the connecting shaft is first inserted into the insertion hole of the inner ring of the bearing. After the insert rod is inserted into the insertion hole, the rotation of the connecting shaft will drive the bearing to rotate, and the bearing will drive the scraper to rotate, thereby enabling the scraper to rotate and loosen the dirt on one side of the filter plate, thus preventing the dirt from clogging the filter holes on the filter plate.

[0024] Preferably, the cross-sections of both the insertion hole and the insertion rod are set to regular hexagons.

[0025] The effect achieved by the above components is that by setting the cross-section of the plug and the socket to a regular hexagon, the stability of the plug and the socket after connection can be improved.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0027] 1. In this invention, by setting up a salt scraping component, the scraper can be automatically driven to scrape off the crystallized salt on the inner wall of the tank. The entire process does not require the drive of a motor. The fan blades and scraper can be driven to rotate by the fluid power generated by the flow of black water. This helps to reduce the overall energy consumption of the equipment, reduce energy costs, and improve the practicality of the MVR evaporator.

[0028] 2. In this invention, by setting up a salt collection component, the crystallized salt can be automatically scraped into the groove for collection during the process of the salt scraping component scraping the crystallized salt from the inner wall of the tank, which improves the ease of use of the MVR evaporator.

[0029] 3. In this invention, by setting up a filter assembly and a filter plate to pre-treat and filter the black water entering from the inlet pipe, the practicality of the MVR evaporator is improved, and the filter plate can be easily replaced by personnel after wear. Attached Figure Description

[0030] Figure 1 This invention provides a three-dimensional structural schematic diagram of an integrated MVR evaporator for wastewater treatment;

[0031] Figure 2 This invention provides a schematic diagram of the interior of an integrated MVR evaporator for wastewater treatment;

[0032] Figure 3 This invention provides a schematic diagram of the structure of a salt scraping assembly in an integrated MVR evaporator for wastewater treatment;

[0033] Figure 4 This invention presents a partial structural diagram of the salt scraping assembly of an integrated MVR evaporator for wastewater treatment.

[0034] Figure 5 This invention provides a schematic diagram of the scraper structure in the salt scraping assembly of an integrated MVR evaporator for wastewater treatment;

[0035] Figure 6 This invention provides a schematic diagram of the structure of a salt collection assembly for an integrated MVR evaporator used in wastewater treatment;

[0036] Figure 7 This invention provides a schematic diagram of the material collection ring structure of an integrated MVR evaporator for wastewater treatment;

[0037] Figure 8 This invention presents a partial structural disassembly diagram of the salt collection assembly of an integrated MVR evaporator for wastewater treatment.

[0038] Figure 9 This invention proposes a filter assembly for an integrated MVR evaporator for wastewater treatment;

[0039] Figure 10 This invention presents a partial structural diagram of the filter assembly of an integrated MVR evaporator for wastewater treatment.

[0040] Legend: 1. Tank body; 2. Support frame; 3. Salt scraping assembly; 301. Connecting shaft; 302. Annular hole; 303. Support rod; 304. Fan blade; 305. Driving bevel gear; 306. Rotating shaft; 307. Driven bevel gear; 308. Fixing ring; 309. Fixing rod; 310. Connecting rod; 311. Scraper; 312. Reinforcing rib; 4. Salt collection assembly; 401. Connecting plate; 402. Scraper; 403. Collection... 404. Material ring; 405. Positioning ring; 406. Groove; 407. Discharge hole; 408. Sealing plate; 409. Scraper ring; 410. Collection box; 411. Electric push rod; 412. Fixing base; 5. Filter assembly; 501. Filter plate; 502. Filter hole; 503. Sliding hole; 504. Sliding rod; 505. Adjusting ring; 506. Welding plate; 507. Bearing; 508. Scraper blade; 509. Insertion hole; 510. Insertion rod; 6. Water inlet pipe. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0043] Example 1, as Figures 1-2 As shown, the present invention provides an integrated MVR evaporator for wastewater treatment, including a tank 1, an inlet pipe 6 and a salt scraping assembly 3. Several support frames 2 are fixedly connected to the outer wall of the tank 1, and one end of the inlet pipe 6 is fixedly connected to the outer wall of the tank 1.

[0044] Among them, the salt scraping component 3 is located inside the water inlet pipe 6, the inner wall of the tank 1 is provided with a salt collection component 4, and the inner wall of the water inlet pipe 6 is provided with a filter component 5.

[0045] The following section will explain the specific settings and functions of the salt scraping component 3, the salt collection component 4, and the filter component 5.

[0046] like Figures 3 to 5As shown, the salt scraping assembly 3 includes a connecting shaft 301 and a rotating shaft 306. The connecting shaft 301 is located inside the water inlet pipe 6, and the rotating shaft 306 is located inside the tank body 1. The arc surface of the connecting shaft 301 has several annular holes 302. Several support rods 303 are slidably connected to the inner wall of the annular holes 302, and the support rods 303 are fixedly connected to the inner wall of the water inlet pipe 6. Several fan blades 304 are fixedly connected to the arc surface of the connecting shaft 301, and the fan blades 304 are evenly distributed on the arc surface of the connecting shaft 301. A driving bevel gear 305 is fixedly connected to the end of the connecting shaft 301 near the rotating shaft 306. A driven bevel gear 307 is fixedly connected to the arc surface of the rotating shaft 306, and the driven bevel gear 307 meshes with the driving bevel gear 305. Several connecting rods 310 are fixedly connected to the arc surface of the rotating shaft 306, and the ends of the connecting rods 310 away from the rotating shaft 306 are fixedly connected to the arc surface of the rotating shaft 306. A scraper 311 is fixedly connected, with its blade fitting against the inner wall of the tank 1. When it is necessary to scrape off the crystalline salt adhering to the inner wall of the tank 1, the black water to be treated is first injected into the tank 1 through the inlet pipe 6. As the black water passes through the inlet pipe 6, it drives several fan blades 304 to rotate. The fan blades 304 drive the connecting shaft 301 to rotate. During the rotation of the connecting shaft 301, the support rod 303 fixed to the inner wall of the inlet pipe 6 slides along the inner wall of the annular hole 302. At the same time, the connecting shaft 301 drives the active bevel gear 305 to rotate. The active bevel gear 305 drives the driven bevel gear 307 to rotate. The driven bevel gear 307 drives the rotating shaft 306 to rotate. The rotating shaft 306 drives the connecting rod 310 to rotate. The connecting rod 310 drives the scraper 311, causing the scraper 311 to move along the inner wall of the tank 1, thereby scraping off the crystalline salt from the inner wall of the tank 1.

[0047] A fixed ring 308 is rotatably connected to the arc surface of the rotating shaft 306. Two fixed rods 309 are fixedly connected to the outer wall of the fixed ring 308. One end of the fixed rod 309 is fixedly connected to the inner wall of the tank 1. During the rotation of the rotating shaft 306, the fixed ring 308 and the fixed rods 309 can reinforce and support the rotating shaft 306, thereby improving the stability of the rotating shaft 306 during the rotation process.

[0048] A reinforcing rib 312 is fixedly connected at the connection point between the connecting rod 310 and the scraper 311. The reinforcing rib 312 is made of aluminum alloy. By setting the reinforcing rib 312 made of aluminum alloy at the connection point between the scraper 311 and the connecting rod 310, the light weight and high strength of aluminum alloy can effectively improve the strength of the connection point between the connecting rod 310 and the scraper 311.

[0049] The connecting shaft 301, the driving bevel gear 305, the driven bevel gear 307, the rotating shaft 306, the connecting rod 310, and the scraper 311 are all made of high-density polyethylene. By making the connecting shaft 301, the driving bevel gear 305, the driven bevel gear 307, the rotating shaft 306, the connecting rod 310, and the scraper 311 of high-density polyethylene, it is possible to effectively improve the applicability of these parts. High-density polyethylene is a plastic material commonly used in water flow devices. It has good corrosion resistance and strong toughness, and is lightweight.

[0050] The effect of the entire salt scraping assembly 3 is that it can automatically drive the scraper 311 to scrape off the crystallized salt on the inner wall of the tank 1, and the whole process does not require the drive of a motor. It only needs to rely on the fluid power generated by the flow of black water to drive the fan blade 304 and the scraper 311 to rotate, which helps to reduce the overall energy consumption of the equipment, reduce energy costs, and improve the practicality of the MVR evaporator.

[0051] like Figure 6 and Figure 8 As shown, the salt collection assembly 4 includes a connecting plate 401 and a collecting ring 403. One side of the long arm end of the connecting plate 401 is fixedly connected to the arc surface of the rotating shaft 306. The outer wall of the collecting ring 403 is fixedly connected to the inner wall of the tank body 1. A scraper 402 is fixedly connected to one side of the short arm end of the connecting plate 401. The lower surface of the scraper 402 is in contact with the upper surface of the collecting ring 403. A groove 405 is formed on the upper surface of the collecting ring 403. A scraper ring 408 is attached to the inner wall of the groove 405. A discharge hole 406 is formed on the outer wall of the tank body 1. A sealing plate is attached to the inner wall of the discharge hole 406. 407. One side of the sealing plate 407 is fixedly connected to one side of the outer wall of the scraper ring 408. During the process of scraping the crystallized salt from the inner wall of the tank 1 by the scraper 311, the crystallized salt will fall onto the upper surface of the collecting ring 403. At this time, the rotation of the rotating shaft 306 will drive the connecting plate 401 to rotate. The connecting plate 401 will drive the scraper 402 to move along the upper surface of the collecting ring 403, so that the crystallized salt on the scraper 402 can be scraped into the groove 405. Personnel can move the sealing plate 407 to drive the scraper ring 408 to periodically remove the crystallized salt inside the groove 405.

[0052] A collection box 409 is fixedly connected to the outer wall of the tank body 1. A fixing seat 411 is fixedly connected to the outer wall of the collection box 409 away from the tank body 1. An electric actuator 410 is fixedly connected to the inner wall of the fixing seat 411. The output end of the electric actuator 410 is fixedly connected to the side of the sealing plate 407 away from the scraper ring 408. When it is necessary to periodically collect crystallized salt into the collection box 409, the cylinder is activated to move the sealing plate 407, causing the sealing plate 407 to separate from the discharge hole 406. The movement of the sealing plate 407 also drives the scraper ring 408, which can... The crystalline salt inside the groove 405 is scraped into the collection box 409. After the crystalline salt inside the groove 405 enters the collection box 409, the cylinder is activated to drive the sealing plate 407 to move in the opposite direction. When the sealing plate 407 blocks the discharge hole 406 and the scraper ring 408 is in contact with the inner wall of the groove 405, the operation of the electric push rod 410 can be stopped. By setting the above structure, the crystalline salt inside the groove 405 can be transferred to the collection box 409 periodically and automatically without the need for personnel to remove the salt, which improves the automation level and practicality of the MVR evaporator.

[0053] A positioning ring 404 is fixedly connected to the upper surface of the collecting ring 403. The inner diameter of the positioning ring 404 is equal to the inner diameter of the collecting ring 403. During the process of the scraper 402 scraping the crystallized salt on the upper surface of the collecting ring 403, the positioning ring 404 can block the crystallized salt on the collecting ring 403, which can effectively prevent the crystallized salt from falling off the collecting ring 403.

[0054] The overall effect of the salt collection component 4 is that, by setting the salt collection component 4, during the process of the salt scraping component 3 scraping the crystallized salt on the inner wall of the tank 1, the crystallized salt can be automatically scraped into the groove 405 for collection, which improves the ease of use of the MVR evaporator.

[0055] like Figure 9 and Figure 10As shown, the filter assembly 5 includes a filter plate 501. The arc surface of the filter plate 501 is fitted to the inner wall of the inlet pipe 6. Several filter holes 502 are opened on the side of the filter plate 501, and the filter holes 502 are evenly distributed on the side of the filter plate 501. Two sliding holes 503 are opened on the side of the filter plate 501. A sliding rod 504 is slidably inserted into the inner wall of the sliding hole 503. Two welding plates 506 are fixedly connected to the inner wall of the inlet pipe 6. One side of the welding plate 506 is fixedly connected to one end of the sliding rod 504. An adjusting ring 505 is threadedly connected to the arc surface of the sliding rod 504. When it is necessary to install the filter plate 501 to pre-treat the black water entering the inlet pipe 6, the filter plate 501 is used. During filtration, first move the filter plate 501, insert the slide rod 504 into the slide hole 503 on the side of the filter plate 501, then put the adjusting ring 505 on the arc surface of the slide rod 504, and rotate the adjusting ring 505 to abut against the filter plate 501 to complete the installation of the filter plate 501. After the filter plate 501 is installed, the filter hole 502 can pre-filter the black water entering the inlet pipe 6. When the filter plate 501 needs to be replaced after wear, first rotate the adjusting ring 505 to separate it from the slide rod 504, then move the filter plate 501 to separate the slide hole 503 on the filter plate 501 from the slide rod 504 to complete the disassembly of the filter plate 501.

[0056] A bearing 507 is mounted on the side of the filter plate 501. Several scraper blades 508 are fixedly connected to one side of the inner ring of the bearing 507. An insertion hole 509 is opened on the side of the inner ring of the bearing 507. An insertion rod 510 is fixedly connected to one end of the connecting shaft 301. The size of the insertion rod 510 is adapted to the insertion hole 509. When installing the filter plate 501, the insertion rod 510 fixed on the connecting shaft 301 is first inserted into the insertion hole 509 of the inner ring of the bearing 507. After the insertion rod 510 is inserted into the insertion hole 509, the rotation of the connecting shaft 301 will drive the bearing 507 to rotate. The bearing 507 drives the scraper blades 508 to rotate, so that the scraper blades 508 can rotate to scrape the dirt on one side of the filter plate 501 loosely, thereby preventing the dirt from clogging the filter holes 502 on the filter plate 501.

[0057] Both the socket 509 and the insertion rod 510 have hexagonal cross-sections. By setting the cross-sections of the insertion rod 510 and the socket 509 to hexagonal shapes, the stability of the connection between the insertion rod 510 and the socket 509 can be improved.

[0058] The effect of the entire filter assembly 5 is that by setting the filter assembly 5 and the filter plate 501, the black water entering the water inlet pipe 6 is pre-treated and filtered, thereby improving the practicality of the MVR evaporator. Furthermore, the filter plate 501 can be easily replaced by personnel after wear.

[0059] The overall working principle is as follows: When it is necessary to scrape off the crystallized salt adhering to the inner wall of tank 1, the black water to be treated is first injected into tank 1 through inlet pipe 6. As the black water passes through inlet pipe 6, it drives several fan blades 304 to rotate. The fan blades 304 drive the connecting shaft 301 to rotate. During the rotation of connecting shaft 301, the support rod 303 fixed to the inner wall of inlet pipe 6 slides along the inner wall of annular hole 302. At the same time, connecting shaft 301 drives the active bevel gear 305 to rotate. The active bevel gear 305 drives the driven bevel gear 307 to rotate. The driven bevel gear 307 drives the rotating shaft 306 to rotate. The rotating shaft 306 drives the connecting rod 310 to rotate. The connecting rod 310 drives the scraper 311, causing the scraper 311 to move along the inner wall of tank 1, thereby scraping off the crystallized salt from the inner wall of tank 1. During the rotation of the rotating shaft 306, the fixing ring 308 and the fixing rod 309 can reinforce and support the rotating shaft 306, thereby improving the stability of the rotating shaft 306 during rotation. In addition, by setting a reinforcing rib 312 made of aluminum alloy at the connection between the scraper 311 and the connecting rod 310, the light weight and high strength of aluminum alloy can effectively improve the strength of the connection between the connecting rod 310 and the scraper 311. Finally, by setting the connecting shaft 301, the driving bevel gear 305, the driven bevel gear 307, the rotating shaft 306, the connecting rod 310 and the scraper 311 to high-density polyethylene, a plastic material commonly used in water flow devices, which has good corrosion resistance and strong toughness, and is lightweight, the applicability of these parts can be effectively improved.

[0060] During the process of scraping the crystallized salt from the inner wall of tank 1 by scraper 311, the crystallized salt will fall onto the upper surface of collection ring 403. At this time, the rotation of shaft 306 will drive the connecting plate 401 to rotate, and the connecting plate 401 will drive scraper 402 to move along the upper surface of collection ring 403, thereby scraping the crystallized salt on scraper 402 into groove 405. Personnel can move sealing plate 407 to drive scraper ring 408 to periodically remove the crystallized salt inside groove 405. When it is necessary to periodically collect the crystallized salt into collection box 409, the cylinder is activated to move sealing plate 407, so that sealing plate 407 separates from discharge hole 406. As the sealing plate 407 moves, it drives the scraper ring 408. The scraper ring 408 can scrape the crystallized salt inside the groove 405 into the collection box 409. After the crystallized salt inside the groove 405 enters the collection box 409, the cylinder is activated to drive the sealing plate 407 to move in the opposite direction. When the sealing plate 407 blocks the discharge hole 406 and the scraper ring 408 is in contact with the inner wall of the groove 405, the operation of the electric push rod 410 can be stopped. In addition, during the process of the scraper 402 scraping the crystallized salt on the upper surface of the collection ring 403, the positioning ring 404 can block the crystallized salt on the collection ring 403, which can effectively prevent the crystallized salt from falling off the collection ring 403.

[0061] When filter plate 501 needs to be installed to pre-filter the black water entering the inlet pipe 6, first move filter plate 501, insert slide rod 504 into the sliding hole 503 on the side of filter plate 501, then put adjusting ring 505 on the arc surface of slide rod 504, and rotate adjusting ring 505 to abut against filter plate 501 to complete the installation of filter plate 501. After filter plate 501 is installed, filter hole 502 can pre-filter the black water entering the inlet pipe 6. When filter plate 501 needs to be replaced due to wear, first rotate adjusting ring 505 to separate it from slide rod 504, then move filter plate 501 so that the sliding hole 503 on filter plate 501 abuts against slide rod 504. 4. Separation completes the disassembly of filter plate 501. When installing filter plate 501, first insert the rod 510 fixed on the connecting shaft 301 into the insertion hole 509 of the inner ring of bearing 507. After the rod 510 is inserted into the insertion hole 509, the rotation of the connecting shaft 301 will drive the bearing 507 to rotate, and the bearing 507 will drive the scraper 508 to rotate, thereby enabling the scraper 508 to rotate and loosen the dirt on one side of filter plate 501, thus preventing the dirt from clogging the filter holes 502 on filter plate 501. In addition, by setting the cross-section of the rod 510 and the insertion hole 509 to be regular hexagonal, the stability after the rod 510 and the insertion hole 509 are connected can be improved.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An integrated MVR evaporator for wastewater treatment, comprising a tank (1), an inlet pipe (6), and a salt scraping assembly (3), characterized in that: The outer wall of the tank (1) is fixedly connected to several support frames (2). One end of the water inlet pipe (6) is fixedly connected to the outer wall of the tank (1). The salt scraping assembly (3) is located inside the water inlet pipe (6). The salt scraping assembly (3) includes a connecting shaft (301) and a rotating shaft (306). The connecting shaft (301) is located inside the water inlet pipe (6), and the rotating shaft (306) is located inside the tank (1). The arc surface of the connecting shaft (301) is provided with several annular holes (302). The inner wall of the annular holes (302) is slidably connected to several support rods (303). The support rods (303) are fixedly connected to the inner wall of the water inlet pipe (6). The connecting shaft (301) has several annular holes (302) on its arc surface. The inner wall of the annular holes (302) is slidably connected to several support rods (303). The support rods (303) are fixedly connected to the inner wall of the water inlet pipe (6). A plurality of fan blades (304) are fixedly connected to the arc surface. The fan blades (304) are evenly distributed on the arc surface of the connecting shaft (301). A driving bevel gear (305) is fixedly connected to one end of the connecting shaft (301) near the rotating shaft (306). A driven bevel gear (307) is fixedly connected to the arc surface of the rotating shaft (306). The driven bevel gear (307) meshes with the driving bevel gear (305). A plurality of connecting rods (310) are fixedly connected to the arc surface of the rotating shaft (306). A scraper (311) is fixedly connected to one end of the connecting rod (310) away from the rotating shaft (306). The blade of the scraper (311) is in contact with the inner wall of the tank (1). The inner wall of the tank (1) is provided with a salt collection assembly (4), which includes a connecting plate (401) and a collecting ring (403). One side of the long arm end of the connecting plate (401) is fixedly connected to the arc surface of the rotating shaft (306). The outer wall of the collecting ring (403) is fixedly connected to the inner wall of the tank (1). A positioning ring (404) is fixedly connected to the upper surface of the collecting ring (403). The inner diameter of the positioning ring (404) is equal to the inner diameter of the collecting ring (403). The connecting plate (401) is fixedly connected to the inner wall of the tank (1). A scraper (402) is fixedly connected to one side of the short arm end. The lower surface of the scraper (402) is in contact with the upper surface of the collecting ring (403). A groove (405) is provided on the upper surface of the collecting ring (403). A scraper ring (408) is attached to the inner wall of the groove (405). A discharge hole (406) is provided on the outer wall of the tank (1). A sealing plate (407) is attached to the inner wall of the discharge hole (406). One side of the sealing plate (407) is fixedly connected to one side of the outer wall of the scraper ring (408). A collection box (409) is fixedly connected to the outer wall of the tank (1). A fixing seat (411) is fixedly connected to the outer wall of the collection box (409) away from the tank (1). An electric push rod (410) is fixedly connected to the inner wall of the fixing seat (411). The output end of the electric push rod (410) is fixedly connected to the side of the sealing plate (407) away from the scraper ring (408). The inner wall of the water inlet pipe (6) is provided with a filter assembly (5), which includes a filter plate (501). The arc surface of the filter plate (501) is in contact with the inner wall of the water inlet pipe (6). Several filter holes (502) are opened on the side of the filter plate (501). The filter holes (502) are evenly distributed on the side of the filter plate (501). Two sliding holes (503) are opened on the side of the filter plate (501). A sliding rod (504) is slidably inserted into the inner wall of the sliding hole (503). Two welded rods are fixedly connected to the inner wall of the water inlet pipe (6). The welding plate (506) is fixedly connected to one end of the slide rod (504) on one side. The slide rod (504) is threaded with an adjusting ring (505) on its arc surface. The filter plate (501) is equipped with a bearing (507) on one side. Several scrapers (508) are fixedly connected to one side of the inner ring of the bearing (507). The inner ring of the bearing (507) is provided with a socket hole (509) on one side. One end of the connecting shaft (301) is fixedly connected with a plug rod (510). The size of the plug rod (510) is adapted to the size of the socket hole (509).

2. The integrated MVR evaporator for wastewater treatment according to claim 1, characterized in that: The rotating shaft (306) is rotatably connected to a fixed ring (308) on its arc surface. Two fixed rods (309) are fixedly connected to the outer wall of the fixed ring (308). One end of the fixed rod (309) is fixedly connected to the inner wall of the tank (1).

3. The integrated MVR evaporator for wastewater treatment according to claim 1, characterized in that: A reinforcing rib (312) is fixedly connected at the connection point between the connecting rod (310) and the scraper (311), and the reinforcing rib (312) is specifically made of aluminum alloy.

4. An integrated MVR evaporator for wastewater treatment according to claim 1, characterized in that: The connecting shaft (301), the driving bevel gear (305), the driven bevel gear (307), the rotating shaft (306), the connecting rod (310), and the scraper (311) are specifically made of high-density polyethylene.

5. An integrated MVR evaporator for wastewater treatment according to claim 1, characterized in that: The cross-sections of the insertion hole (509) and the insertion rod (510) are both set to regular hexagons.

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