A multi-stage treatment device for industrial wastewater

Abstract

The present invention discloses a multi-stage treatment device for industrial wastewater, comprising: an industrial wastewater treatment pool, a top cover fixedly installed on the upper surface of the industrial wastewater treatment pool, a motor fixedly installed on the upper surface of the top cover, the output shaft of the motor passes through the top cover and is located in the industrial wastewater treatment pool, and a connecting rod is fixedly installed on the end of the output shaft of the motor, and the connecting rod rotates and passes through the center of the sieve plate in the industrial wastewater treatment pool, the sieve plate is fixedly installed in the middle part of the industrial wastewater treatment pool, a splitting and scraping mechanism is rotatably installed in the connecting rod, an aeration and conveying mechanism is fixedly installed on the lower surface of the connecting rod on the lower surface of the sieve plate, and a connecting block is fixedly installed on the lower surface of the top cover. The present application uses the design of the splitting and scraping mechanism to enable the separated solid particles to be automatically shoveled into a storage box for centralized storage, and can cause the solid particles to fall and be stored in the storage mechanism so that the staff can centrally process them.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a multi-stage treatment device for industrial wastewater. Background Art

[0002] In wastewater treatment, the activated sludge process is a method that uses microorganisms in the sludge to treat organic matter and some oxidative pollutants in the wastewater. It has the advantages of good treatment effect and high stability. In the activated sludge process, the microorganisms in the sludge need to be evenly dispersed in the treatment pool. Evenly dispersing the microorganisms can enable the microorganisms to maintain a relatively loose living space and living environment, thereby improving the efficiency of microbial wastewater treatment.

[0003] For example, the patent with the authorization announcement number CN117509895B discloses a multi-stage treatment device for industrial wastewater, including a treatment pool, the treatment pool is fixedly connected and connected to a drain pipe, a switch valve is arranged in the drain pipe, the treatment pool is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a rotating pipe, the treatment pool is rotatably connected to the rotating pipe through a cross bar, the side of the treatment pool away from the motor is fixedly connected and connected to an air inlet pipe, the air inlet pipe rotates and is connected to a rotating shell, the rotating shell is fixedly connected and connected to a symmetrically distributed first outlet shell and a second outlet shell, the rotating tube is slidably connected to a first limiting ring, and the first limiting ring is slidably connected to a first filter plate. The present invention disperses the large pieces of sludge by colliding with the first filter plate, thereby preventing the large pieces of sludge from agglomerating and agglomerating to reduce the treatment efficiency of wastewater.

[0004] However, although the above-mentioned multi-stage treatment device for industrial wastewater can effectively disperse the sludge and prevent it from agglomerating, thereby improving the wastewater treatment efficiency, if the treated water is only discharged without effectively treating and storing the separated sludge, the sludge will accumulate in the industrial wastewater treatment pool, thereby affecting the normal operation of the industrial wastewater treatment pool, increasing the difficulty of maintenance during the subsequent cleaning process, and increasing the load on the wastewater treatment device, resulting in reduced treatment efficiency. Summary of the invention

[0005] The object of the present invention is to provide a multi-stage treatment device for industrial wastewater to solve the problem proposed in the above-mentioned background technology that the separated sludge cannot be effectively treated and stored, which will cause the sludge to accumulate in the industrial wastewater treatment tank, thereby affecting the normal operation of the industrial wastewater treatment tank and increasing the difficulty of maintenance during the subsequent cleaning process.

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

[0007] A multi-stage treatment device for industrial wastewater, used for treating industrial wastewater, comprising: an industrial wastewater treatment tank, a top cover is fixedly installed on the upper surface of the industrial wastewater treatment tank, a motor is fixedly installed on the upper surface of the top cover, the output shaft of the motor passes through the top cover and is located in the industrial wastewater treatment tank, and a connecting rod is fixedly installed on the end of the output shaft of the motor, and the connecting rod rotates and passes through the center of a sieve plate in the industrial wastewater treatment tank, the sieve plate is fixedly installed in the middle part of the industrial wastewater treatment tank, a protective cover is fixedly installed on the outer surface of the connecting rod, the lower surface of the protective cover is sealed and installed on the upper surface of the sieve plate, a splitting and scraping mechanism is rotatably installed in the connecting rod, and the splitting and scraping mechanism can pass through both ends of the protective cover and can roll and scrape on the surface of the sieve plate;

[0008] Among them, an aeration conveying mechanism is fixedly installed on the lower surface of the connecting rod located on the lower surface of the sieve plate, and the air inlet end of the aeration conveying mechanism passes through the industrial wastewater treatment tank to the outside. A connecting block is fixedly installed on the lower surface of the top cover, and a storage mechanism is fixedly installed in the connecting block. The closed end of the storage mechanism can slide and unfold from a drop port, and the drop port is opened on the sieve plate.

[0009] Preferably, a first ball valve is installed on the upper end of the outer surface of the industrial wastewater treatment tank, a cone disk is removably installed on the lower inner surface of the industrial wastewater treatment tank, the cone disk is in a vacuum state, a filter hole is opened at the top center of the upper surface of the cone disk, and a second ball valve is installed on the lower surface of the cone disk.

[0010] Preferably, the particulate matter formed by the wastewater during aeration treatment can be guided to the periphery of the cone disk through the conical surface of the cone disk, so as to avoid the particulate matter covering the filter holes on the top of the cone disk, and these particulate matter can continue to participate in degradation in the industrial wastewater treatment tank, or be directly discharged for further dehydration treatment.

[0011] Preferably, the storage mechanism includes a second electric push rod, which is fixedly installed in the connecting block, and the front end of the second electric push rod passes through the connecting block and the industrial wastewater treatment tank. A connecting arm is fixedly installed on one end of the piston rod of the second electric push rod, and a baffle is fixedly installed on the other end of the connecting arm. The baffle is slidably installed in a drop port, and the drop port is connected to the outer surface of the industrial wastewater treatment tank, so that the connecting arm can pull the baffle out therefrom.

[0012] Preferably, a storage box is attached to the lower surface of the baffle plate, and the storage box is slidably installed in a storage frame, and the storage frame is fixedly installed on the lower surface of the sieve plate, so that the opening of the storage box can be flush with the drop opening.

[0013] Preferably, the segmentation and scraping mechanism comprises a limiting ring, a connecting column is fixedly mounted on one end of the limiting ring, the connecting column is rotatably mounted in the connecting rod through the limiting ring, the connecting column passes through the protective cover and a segmentation wheel is fixedly mounted on the outer surface, and the segmentation wheel can roll on the upper surface of the sieve plate as the connecting rod rotates;

[0014] A toothed ring is fixedly mounted on the outer surface of the connecting column, and the toothed ring can mesh with a toothed disc, and the toothed disc is fixedly mounted on the upper surface of the sieve disc, and the toothed disc and the toothed ring are sheathed in a protective cover, so that they can avoid being covered and causing teeth to get stuck when cutting large particles;

[0015] In the process of the connecting column being driven to rotate by the connecting rod, the connecting column can be meshed with the fixed toothed disc through the toothed ring on the outer surface, so that the dividing wheel can rotate by itself during the process of being driven to rotate to divide the large particles;

[0016] The connecting column has a first electric push rod inserted therein, the outer front end of the first electric push rod is fixedly mounted in the connecting rod, a storage cylinder is fixedly mounted on one end of the piston rod of the first electric push rod, the storage cylinder can slide through the other end of the connecting rod and the protective cover, a guide column is fixedly mounted in the storage cylinder, a scraper is slidably mounted on the outer surface of the guide column, a spring is arranged in a guide groove in the scraper for the guide column to slide, and two ends of the spring are respectively in contact between the guide column and the guide groove of the scraper;

[0017] When the storage cylinder is pushed out from the protective cover, the scraper can be pushed out of the storage cylinder by the spring so that it touches the upper surface of the sieve plate to scrape the divided particles;

[0018] Among them, an inclined sliding surface is opened at one end of the lower surface of the scraper blade, so that when the scraper blade is pulled back by the first electric push rod, the inclined sliding surface can contact the inclined sliding surface of the inclined sliding plate through the inclined sliding surface, so that the scraper blade can be pressed and stored in the storage tube.

[0019] Preferably, the outer surface of the dividing wheel is annular and has multiple groups of long strips fixedly mounted thereon.

[0020] Preferably, the aeration and conveying mechanism comprises an air supply pipe, an air inlet is provided on the outer surface of the air supply pipe, a sleeve is sealed on the outer surface of the air supply pipe, an air inlet pipe is connected and installed at one end of the sleeve, and the air inlet pipe runs through the industrial wastewater treatment tank.

[0021] Preferably, the air inlet pipe is sealed by a sleeve, so that the air inlet pipe can be connected with the air supply pipe.

[0022] Preferably, three groups of stirring rods are connected and installed on the outer surface of the lower end of the air supply pipe, and exhaust holes are opened on the outer surfaces of the stirring rods.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the design of the industrial wastewater treatment tank, the motor, the first ball valve, the second ball valve, the sieve plate, the aeration conveying mechanism, the storage mechanism and the segmentation and scraping mechanism, when treating the wastewater, the wastewater can be supplied from the first ball valve into the industrial wastewater treatment tank, and the wastewater entering the industrial wastewater treatment tank will be initially physically filtered through the sieve plate to remove larger solid particles in the wastewater, so that the particles in the wastewater can stay on the upper surface of the sieve plate, and in the process of opening the first ball valve, the motor will be started to drive the segmentation and scraping mechanism on the outer surface of the connecting rod to roll on the upper surface of the sieve plate, so that the segmentation and scraping mechanism can segment and crush the larger solid particles on the surface of the sieve plate, which is helpful to break large pieces of solid particles into smaller particles, or to The water in it can be squeezed out, so that the volume of solid waste can be reduced, and the volume of solid waste can be significantly reduced through squeezing and segmentation operations, while reducing large suspended particles in the wastewater, which is beneficial to the subsequent biological treatment process and prevents microorganisms from being disturbed by too many physical obstacles, thereby improving the degradation efficiency. The squeezing operation can squeeze out the residual water in the solid particles, further improve the filtration efficiency of the wastewater, and reduce the suspended matter content in the wastewater. The solid particles after squeezing will be pushed from the sieve plate by the segmentation and shoveling mechanism, and can slide out of the drop port of the sieve plate by activating the storage mechanism during the scraping process. The segmentation and shoveling mechanism of the scraper on the sieve plate can shovel the solid particles into the drop port, which can make the solid particles The wastewater falls and is stored in the storage mechanism so that the staff can process it centrally. The wastewater that has been initially filtered will be stored in the lower end of the industrial wastewater treatment tank through the sieve plate. Then the staff can inject air or oxygen into the aeration conveying mechanism through aeration, and the aeration conveying mechanism can inject air or oxygen into the wastewater in the industrial wastewater treatment tank. In the process of injecting air or oxygen into the wastewater through the aeration conveying mechanism, the motor will also drive the rotation of the connecting rod to rotate and inject air or oxygen into the wastewater. This rotary injection method can make the oxygen more evenly distributed in the wastewater. Compared with static injection, rotary injection can diffuse oxygen to various areas of the industrial wastewater treatment tank through movement to avoid oxygen concentration. In a local position, and the demand for oxygen by microorganisms is evenly distributed, so through rotary injection, it can be ensured that the microorganisms in the entire industrial wastewater treatment pool can obtain sufficient oxygen, thereby improving the degradation efficiency of organic matter, and rotary injection can effectively enhance the contact between bubbles and wastewater, ensuring that the organic pollutants in the wastewater are fully in contact with microorganisms and oxygen, promoting the degradation of organic matter, thereby improving the efficiency of wastewater treatment, and the treated wastewater can be discharged to the sedimentation tank through the second ball valve connected to the lower surface of the cone disk for solid-liquid separation again, and then chemical agents can be used to further remove difficult-to-degrade organic matter, ammonia nitrogen, heavy metals, etc. in the wastewater, and then membrane separation technology, such as reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF),Used to remove particles and dissolved substances as small as micrometers.

[0025] 2. Through the design of the second electric push rod, the connecting arm, the baffle plate and the storage box, when the solid particles after squeezing are pushed from the sieve plate by the segmentation and scraping mechanism, the second electric push rod can be started to push the connecting arm at one end of the piston rod, and the connecting arm can drive the baffle plate to be pulled out from the drop port of the sieve plate, and the segmentation and scraping mechanism of the scraper on the sieve plate can shovel the solid particles into the drop port, and the solid particles can enter the storage box through the drop port for collection and storage, which is convenient for subsequent processing and management.

[0026] 3. Through the design of the connecting column, the dividing wheel, the first electric push rod, the storage cylinder and the scraper, when the wastewater passes through the sieve plate for preliminary physical filtration, the larger solid particles in the wastewater will remain on the upper surface of the sieve plate, and in the process of opening the first ball valve, the motor will be started together to drive the connecting rod to rotate, and the connecting rod will drive the internally rotatably installed connecting column to rotate during the rotation process, and the connecting column will be meshed with the toothed disk through the toothed ring fixedly installed on the outer surface, so that the connecting column can rotate in the connecting rod through the limit ring, and the connecting column can drive the dividing wheel fixedly installed on the outer surface to touch the upper surface of the sieve plate for rolling, so that the dividing wheel can rotate during the driven rotation to divide and crush the large particles on the surface of the sieve plate, which helps to break large solid particles into smaller particles and squeeze out the water therein, so that the volume of solid waste can be reduced, and through the squeezing and segmentation operations, the volume of solid waste can be significantly reduced, which is beneficial to the subsequent biological treatment process and prevents the microorganisms from being disturbed by too many physical obstacles, thereby improving the degradation efficiency;

[0027] After the solid particles are squeezed, the storage cylinder can be pushed by starting the first electric push rod, and the storage cylinder can slide out from the other end of the connecting rod and the protective cover, and after the storage cylinder slides out from the protective cover, the scraper blade slidably installed in the storage cylinder will not be restricted, and the scraper blade will be pushed out through the elastic force of the spring so that it touches the surface of the sieve plate and is rotated by the connecting rod to perform the scraping operation, and after the scraping is completed, the first electric push rod can be started again to pull the storage cylinder back into the protective cover, and in the process of pulling back, the scraper blade will be pushed out through the inclined surface of the lower end and the inclined sliding plate and be pressed and stored in the storage cylinder, and the scraper blade that is pressed and stored in the storage cylinder will be pressed on one end of the spring again, so that the scraper blade will be pushed out again by the spring when it is pushed out next time.

[0028] 4. Through the design of the air supply pipe, sleeve, air intake pipe and stirring rod, the wastewater that has been initially filtered will be stored in the lower end of the industrial wastewater treatment pool through the sieve plate. Then the staff can inject air or oxygen into the air intake pipe, and the air intake pipe will transport the air or oxygen into the sleeve. The sleeve is mounted on the outer surface of the air supply pipe, and can supply air or oxygen into the air supply pipe and connect it to the stirring rod. With continuous transportation, the air or oxygen can be discharged into the wastewater from the exhaust hole opened on the outer surface of the stirring rod. In the process of discharging air or oxygen, the air supply pipe will be driven to rotate by the connecting rod, and the air supply pipe will rotate in the sleeve. The stirring rod is movable, and during the rotation process, it will remain sealed by the sleeve and supply air or oxygen into the stirring rod through the air inlet pipe. The air or oxygen can be discharged during the stirring rod stirring the wastewater, and this rotary injection method can make the oxygen more evenly distributed in the wastewater. Compared with static injection, rotary injection can diffuse oxygen to various areas of the industrial wastewater treatment pool through movement to avoid oxygen concentration in local positions, and the demand for oxygen by microorganisms is evenly distributed. Therefore, rotary injection can ensure that the microorganisms in the entire industrial wastewater treatment pool can obtain sufficient oxygen, thereby improving the degradation efficiency of organic matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the multi-stage treatment device for industrial wastewater of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the first ball valve and the second ball valve of the present invention;

[0031] Figure 3 It is a schematic structural diagram of an overall cross-section of a multi-stage treatment device for industrial wastewater according to the present invention;

[0032] Figure 4 It is a structural schematic diagram of the storage mechanism of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the sieve plate and the drop port of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the splitting and eradicating mechanism of the present invention;

[0035] Figure 7 It is a schematic structural diagram of the first electric push rod and the scraper of the present invention;

[0036] Figure 8 It is a structural schematic diagram of the aeration and conveying mechanism of the present invention.

[0037] In the figure: 1. Industrial wastewater treatment tank; 101. Top cover; 102. First ball valve; 103. Second ball valve; 104. Connecting block; 105. Storage frame; 106. Cone plate; 107. Sieve plate; 108. Dropping port; 2. Motor; 201. Connecting rod; 202. Protective cover; 203. Slant slide plate; 3. Aeration and conveying mechanism; 301. Air inlet pipe; 302. Casing; 303. Air supply pipe; 304, stirring rod; 4, storage mechanism; 401, second electric push rod; 402, connecting arm; 403, baffle plate; 404, storage box; 5, dividing and scraping mechanism; 501, connecting column; 502, dividing wheel; 503, gear ring; 504, gear disk; 505, limiting ring; 506, first electric push rod; 507, storage tube; 508, guide column; 509, scraper; 510, spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 8 , this embodiment provides the following technical solutions:

[0040] like Figure 1-Figure 3 As shown, a multi-stage treatment device for industrial wastewater, used for treating industrial wastewater, comprises: an industrial wastewater treatment tank 1, a top cover 101 is fixedly installed on the upper surface of the industrial wastewater treatment tank 1, a motor 2 is fixedly installed on the upper surface of the top cover 101, an output shaft of the motor 2 passes through the top cover 101 and is located in the industrial wastewater treatment tank 1, and a connecting rod 201 is fixedly installed on the end of the output shaft of the motor 2, and the connecting rod 201 rotates through the center of the sieve plate 107 in the industrial wastewater treatment tank 1, the sieve plate 107 is fixedly installed in the middle part of the industrial wastewater treatment tank 1, a protective cover 202 is fixedly installed on the outer surface of the connecting rod 201, the lower surface of the protective cover 202 is sealed and installed on the upper surface of the sieve plate 107, a splitting and scraping mechanism 5 is rotatably installed in the connecting rod 201, and the splitting and scraping mechanism 5 can pass through the two ends of the protective cover 202 and can roll and scrape on the surface of the sieve plate 107;

[0041] Among them, an aeration and conveying mechanism 3 is fixedly installed on the lower surface of the connecting rod 201 located on the lower surface of the sieve plate 107, and the air inlet end of the aeration and conveying mechanism 3 passes through the industrial wastewater treatment tank 1 to the outside, and a connecting block 104 is fixedly installed on the lower surface of the top cover 101, and a storage mechanism 4 is fixedly installed in the connecting block 104. The closed end of the storage mechanism 4 can slide and unfold from the drop port 108, and the drop port 108 is opened on the sieve plate 107.

[0042] Among them, a first ball valve 102 is installed on the upper end of the outer surface of the industrial wastewater treatment tank 1, and a cone disk 106 is removed and installed on the lower surface of the inner surface of the industrial wastewater treatment tank 1. The cone disk 106 is in a vacuum state, and a filter hole is opened at the top center of the upper surface of the cone disk 106. The lower surface of the cone disk 106 is connected to a second ball valve 103.

[0043] Among them, during the aeration treatment process, the particulate matter formed mainly comes from the suspended solids in the sewage, the growth and metabolism of microorganisms, and the chemical reaction products that may be produced during the treatment process. The particle size of the particulate matter varies. In order to ensure the quality of industrial wastewater treatment, it is necessary to divide and shred the particulate matter with a larger particle size. For example, particulate matter with a particle size greater than 2 mm has a larger particle size and needs to be divided and shredded. Otherwise, it may have an adverse effect on the wastewater treatment effect and subsequent treatment processes. Therefore, it is necessary to take appropriate measures to control the particle size and distribution of the particulate matter to ensure the stable operation and efficient treatment of the wastewater treatment system. For this reason, the present embodiment is provided with a dividing and shoveling mechanism 5.

[0044] Among them, the conical surface of the cone disk 106 can guide the particulate matter formed in the aeration treatment of the wastewater to the periphery of the cone disk 106, which can prevent the particulate matter from covering the filter holes on the top of the cone disk 106, and these particulate matter can continue to participate in the degradation in the industrial wastewater treatment tank 1, or be discharged for further dehydration treatment.

[0045] Through the design of the industrial wastewater treatment tank 1, the motor 2, the first ball valve 102, the second ball valve 103, the sieve plate 107, the aeration and conveying mechanism 3, the storage mechanism 4 and the segmentation and scraping mechanism 5, when treating the wastewater, the wastewater can be supplied from the first ball valve 102 to the industrial wastewater treatment tank 1, and the wastewater entering the industrial wastewater treatment tank 1 will pass through the sieve plate 107 for preliminary physical filtration to remove larger solid particles in the wastewater, so that the particles in the wastewater can stay on the upper surface of the sieve plate 107, and in the process of opening the first ball valve 102, the motor 2 will be started together to drive the segmentation and scraping mechanism 5 on the outer surface of the connecting rod 201 to roll on the upper surface of the sieve plate 107, so that the segmentation and scraping mechanism 5 can remove larger solid particles on the surface of the sieve plate 107. The particles are segmented and crushed, which helps to break large solid particles into smaller particles or squeeze out the water therein, thereby reducing the volume of solid waste. The squeezing and segmentation operations can significantly reduce the volume of solid waste and reduce large suspended solids in the wastewater, which is beneficial to the subsequent biological treatment process and prevents microorganisms from being disturbed by too many physical obstacles, thereby improving the degradation efficiency. The squeezing operation can squeeze out the residual water in the solid particles, further improve the filtration efficiency of the wastewater, and reduce the suspended solids content in the wastewater. The solid particles after squeezing will be pushed from the sieve plate 107 by the segmentation and scraping mechanism 5, and can be dropped from the sieve plate 107 by activating the storage mechanism 4 during the scraping process. The solid particles will slip out of the opening 108, and the dividing and scraping mechanism 5 of the scraper on the sieve plate 107 can shovel the solid particles into the drop opening 108, so that the solid particles can fall and be stored in the storage mechanism 4 for the staff to centrally process them. The wastewater after preliminary filtration will be stored in the lower end of the industrial wastewater treatment tank 1 through the sieve plate 107, and then the staff can inject air or oxygen into the aeration conveying mechanism 3 through aeration, and the aeration conveying mechanism 3 can inject air or oxygen into the wastewater in the industrial wastewater treatment tank 1, and in the process of injecting air or oxygen into the wastewater through the aeration conveying mechanism 3, the motor 2 will also drive the rotation of the connecting rod 201 to rotate and inject air or oxygen into the wastewater together, and this rotary injection The injection method can make oxygen more evenly distributed in the wastewater. Compared with static injection, rotary injection can diffuse oxygen to various areas of the industrial wastewater treatment tank 1 through movement to avoid oxygen concentration in local positions, and the demand for oxygen by microorganisms is evenly distributed. Therefore, rotary injection can ensure that the microorganisms in the entire industrial wastewater treatment tank 1 can obtain sufficient oxygen, thereby improving the degradation efficiency of organic matter, and rotary injection can effectively enhance the contact between bubbles and wastewater, ensuring that organic pollutants in the wastewater are fully in contact with microorganisms and oxygen, promoting the degradation of organic matter, thereby improving the efficiency of wastewater treatment, and the treated wastewater can be discharged to the sedimentation tank through the second ball valve 103 connected to the lower surface of the cone disk 106 for solid-liquid separation again.Chemical agents can then be used to further remove refractory organic matter, ammonia nitrogen, heavy metals, etc. in the wastewater, and membrane separation technologies such as reverse osmosis (RO), nanofiltration (NF), and ultrafiltration (UF) can then be used to remove particles as small as microns and soluble substances.

[0046] like Figure 4-Figure 5 As shown, the storage mechanism 4 includes a second electric push rod 401, which is fixedly installed in the connecting block 104. The front end of the second electric push rod 401 passes through the connecting block 104 and the industrial wastewater treatment tank 1. A connecting arm 402 is fixedly installed at one end of the piston rod of the second electric push rod 401, and a baffle 403 is fixedly installed at the other end of the connecting arm 402. The baffle 403 is slidably installed in the drop-out port 108. The drop-out port 108 is connected to the outer surface of the industrial wastewater treatment tank 1, and the connecting arm 402 can pull the baffle 403 out therefrom.

[0047] A storage box 404 is attached to the lower surface of the baffle 403 , and the storage box 404 is slidably installed in the storage frame 105 . The storage frame 105 is fixedly installed on the lower surface of the sieve plate 107 , so that the opening of the storage box 404 can be flush with the drop opening 108 .

[0048] Through the design of the second electric push rod 401, the connecting arm 402, the baffle plate 403 and the storage box 404, when the squeezed solid particles are pushed from the sieve plate 107 by the dividing and scraping mechanism 5, the second electric push rod 401 can be started to push the connecting arm 402 at one end of the piston rod, and the connecting arm 402 can drive the baffle plate 403 to be pulled out from the drop port 108 of the sieve plate 107, and the dividing and scraping mechanism 5 of the scraper on the sieve plate 107 can shovel the solid particles into the drop port 108, and the solid particles can enter the storage box 404 through the drop port 108 for collection and storage, which is convenient for subsequent processing and management.

[0049] like Figure 6-Figure 7 As shown, the segmentation and scraping mechanism 5 includes a limiting ring 505, one end of which is fixedly mounted with a connecting column 501, the connecting column 501 is rotatably mounted in the connecting rod 201 through the limiting ring 505, the connecting column 501 passes through the protective cover 202 and a segmentation wheel 502 is fixedly mounted on the outer surface, and the segmentation wheel 502 can roll on the upper surface of the sieve plate 107 as the connecting rod 201 rotates;

[0050] A toothed ring 503 is fixedly mounted on the outer surface of the connecting column 501, and the toothed ring 503 can mesh with a toothed disc 504, and the toothed disc 504 is fixedly mounted on the upper surface of the sieve disc 107. The toothed disc 504 and the toothed ring 503 are sheathed in a protective cover 202, so that they can avoid being covered and causing teeth to get stuck when cutting large particles;

[0051] When the connecting column 501 is driven to rotate by the connecting rod 201, the connecting column 501 can be meshed with the fixed toothed disc 504 through the toothed ring 503 on the outer surface, so that the dividing wheel 502 can rotate by itself during the driven rotation to divide the large particles.

[0052] The first electric push rod 506 is inserted and installed in the connecting column 501, and the outer front end of the first electric push rod 506 is fixedly installed in the connecting rod 201. A storage tube 507 is fixedly installed at one end of the piston rod of the first electric push rod 506. The storage tube 507 can slide out from the other end of the connecting rod 201 and the protective cover 202. A guide column 508 is fixedly installed in the storage tube 507. A scraper 509 is slidably installed on the outer surface of the guide column 508. A spring 510 is arranged in the guide groove of the scraper 509 for the guide column 508 to slide. The two ends of the spring 510 are respectively pressed between the guide grooves of the guide column 508 and the scraper 509.

[0053] When the storage cylinder 507 is pushed out from the protective cover 202, the scraper 509 can be pushed out of the storage cylinder 507 by the spring 510, so that it touches the upper surface of the sieve plate 107 to scrape the separated particles.

[0054] Among them, an inclined sliding surface is opened at one end of the lower surface of the scraper 509, so that when the scraper 509 is pulled back by the first electric push rod 506, the inclined sliding surface can contact the inclined sliding surface of the inclined sliding plate 203, so that the scraper 509 can be pressed and stored in the storage tube 507.

[0055] The outer surface of the dividing wheel 502 is annular and has multiple groups of long strips fixedly mounted thereon.

[0056] Through the design of the connecting column 501, the dividing wheel 502, the first electric push rod 506, the storage cylinder 507 and the scraper 509, when the wastewater passes through the sieve plate 107 for preliminary physical filtration, the larger solid particles in the wastewater will remain on the upper surface of the sieve plate 107, and in the process of opening the first ball valve 102, the motor 2 will be started together to drive the connecting rod 201 to rotate, and the connecting rod 201 will drive the internally rotatably installed connecting column 501 to rotate during the rotation process, and the connecting column 501 will be meshed with the toothed disk 504 through the toothed ring 503 fixedly installed on the outer surface, so that the connecting column 501 can be connected to the connecting rod through the limit ring 505. 201 rotates by itself, so that the connecting column 501 can drive the dividing wheel 502 fixedly installed on the outer surface to touch the upper surface of the sieve plate 107 for rolling, so that the dividing wheel 502 can rotate by itself during the process of being driven to rotate to divide and crush the large particles on the surface of the sieve plate 107, which helps to break the large solid particles into smaller particles and squeeze out the water therein, so that the volume of the solid waste can be reduced, and the volume of the solid waste can be significantly reduced through the squeezing and dividing operations, which is beneficial to the subsequent biological treatment process and prevents the microorganisms from being disturbed by too many physical obstacles, thereby improving the degradation efficiency;

[0057] After the solid particles are squeezed, the first electric push rod 506 can be started to push the storage cylinder 507, and the storage cylinder 507 can slide through the other end of the connecting rod 201 and the protective cover 202. After the storage cylinder 507 slides through the protective cover 202, the scraper 509 slidably installed in the storage cylinder 507 will not be restricted, and the scraper 509 will be pushed from the elastic force of the spring 510 to make it touch the surface of the sieve plate 107. The scraping operation is then performed, and after the scraping is completed, the first electric push rod 506 can be started again to pull the storage tube 507 back into the protective cover 202, and in the process of pulling back, the scraper 509 will be pushed out through the inclined surface of the lower end and the inclined sliding plate 203 and pressed into the storage tube 507. The scraper 509 that is pressed and stored in the storage tube 507 will be pressed against one end of the spring 510 again, so that the scraper 509 can be pushed out again by the spring 510 when it is pushed out next time.

[0058] like Figure 8 As shown, the aeration and conveying mechanism 3 includes an air supply pipe 303, an air inlet is opened on the outer surface of the air supply pipe 303, a sleeve 302 is sealed on the outer surface of the air supply pipe 303, and an air inlet pipe 301 is installed at one end of the sleeve 302, and the air inlet pipe 301 runs through the industrial wastewater treatment tank 1.

[0059] The air inlet pipe 301 is sealed by the sleeve 302 , so that the air inlet pipe 301 and the air supply pipe 303 can be connected.

[0060] The outer surface of the lower end of the air supply pipe 303 is connected to and installed with three groups of stirring rods 304 , and the outer surface of the stirring rods 304 is provided with exhaust holes.

[0061] Through the design of the air supply pipe 303, the sleeve 302, the air intake pipe 301 and the stirring rod 304, the wastewater after preliminary filtration will be stored in the lower end of the industrial wastewater treatment tank 1 through the sieve plate 107, and then the staff can inject air or oxygen into the air intake pipe 301, and the air intake pipe 301 will transport the air or oxygen into the sleeve 302, and the sleeve 302 is sleeved on the outer surface of the air supply pipe 303, and can supply air or oxygen into the air supply pipe 303 and connect it to the stirring rod 304. With continuous transportation, the air or oxygen can be discharged into the wastewater from the exhaust hole opened on the outer surface of the stirring rod 304, and in the process of discharging air or oxygen, the air supply pipe 303 will be driven to rotate by the connecting rod 201. The air supply pipe 303 will rotate in the sleeve 302, and during the rotation process, it will remain sealed by the sleeve 302 and supply air or oxygen into the stirring rod 304 through the air inlet pipe 301, so that air or oxygen can be discharged during the stirring of the wastewater by the stirring rod 304. This rotary injection method can make the oxygen more evenly distributed in the wastewater. Compared with static injection, rotary injection can diffuse oxygen to various areas of the industrial wastewater treatment tank 1 through movement, avoiding oxygen concentration in local locations, and the microorganisms' demand for oxygen is evenly distributed. Therefore, rotary injection can ensure that the microorganisms in the entire industrial wastewater treatment tank 1 can obtain sufficient oxygen, thereby improving the degradation efficiency of organic matter.

[0062] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when treating wastewater, the wastewater can be supplied into the industrial wastewater treatment tank 1 through the first ball valve 102, and the wastewater entering the industrial wastewater treatment tank 1 will pass through the sieve plate 107 for preliminary physical filtration to remove larger solid particles in the wastewater, so that the particles in the wastewater can remain on the upper surface of the sieve plate 107, and in the process of opening the first ball valve 102, the motor 2 will be started together to drive the connecting rod 201 to rotate, and the connecting rod 201 will drive the internally rotatably installed connecting column 501 to rotate during the rotation, and the connecting column 501 will be meshed with the toothed disk 504 through the toothed ring 503 fixedly installed on the outer surface, so that the connecting column 501 can pass through the limit The positioning ring 505 rotates inside the connecting rod 201, which can enable the connecting column 501 to drive the dividing wheel 502 fixedly installed on the outer surface to touch the upper surface of the sieve plate 107 for rolling, so that the dividing wheel 502 can rotate during the rotation to divide and crush the large particles on the surface of the sieve plate 107, which helps to break large solid particles into smaller particles and squeeze out the water therein, thereby reducing the volume of solid waste, facilitating the subsequent biological treatment process, preventing microorganisms from being disturbed by too many physical obstacles, thereby improving the degradation efficiency. After the solid particles are squeezed, the storage cylinder 507 can be pushed by starting the first electric push rod 506, and the storage cylinder 507 can be removed from the connecting rod 201. The other end of the connecting rod 201 and the protective cover 202 slides out, and after the storage tube 507 slides out of the protective cover 202, the scraper 509 slidably installed in the storage tube 507 will not be restricted, and the scraper 509 will be pushed out from the elastic force of the spring 510 to make it touch the surface of the sieve plate 107, and the scraping operation is performed by rotating driven by the connecting rod 201. During the scraping process, the connecting arm 402 at one end of the piston rod can be pushed by starting the second electric push rod 401, and the connecting arm 402 can drive the baffle 403 to be pulled out of the drop port 108 of the sieve plate 107, so that the solid particles under the scraper can enter the storage box 404 through the drop port 108 for collection and storage, which is convenient for subsequent processing and management, and after the scraping is completed After that, the first electric push rod 506 can be started again to pull the storage tube 507 back into the protective cover 202, and in the process of pulling back, the scraper blade 509 will be pushed out through the inclined surface of the lower end and the inclined sliding plate 203 and pressed into the storage tube 507, and the scraper blade 509 pressed into the storage tube 507 will be pressed against one end of the spring 510 again, so that the scraper blade 509 will be pushed out again by the spring 510 when it is pushed out next time, and the wastewater after preliminary filtration will be stored in the lower end of the industrial wastewater treatment tank 1 through the sieve plate 107, and then the staff can inject air or oxygen into the air inlet pipe 301, and the air inlet pipe 301 will transport the air or oxygen into the sleeve 302, and the sleeve 302 is sleeved on the outer surface of the air supply pipe 303.Air or oxygen can be supplied into the air supply pipe 303 and connected into the stirring rod 304. With continuous supply, the air or oxygen can be discharged into the wastewater from the exhaust hole on the outer surface of the stirring rod 304. In the process of discharging air or oxygen, the air supply pipe 303 will be driven to rotate by the connecting rod 201, and the air supply pipe 303 will rotate in the sleeve 302. During the rotation, the sleeve 302 will remain sealed and air or oxygen will be supplied into the stirring rod 304 through the air inlet pipe 301. Air or oxygen can be discharged during the stirring of the wastewater by the stirring rod 304. This rotary The injection method can make oxygen more evenly distributed in the wastewater, ensure that the organic pollutants in the wastewater are fully in contact with microorganisms and oxygen, promote the degradation of organic matter, and thus improve the efficiency of wastewater treatment. The treated wastewater can be discharged into the sedimentation tank through the second ball valve 103 connected to the lower surface of the cone disk 106 for solid-liquid separation again, and then chemical agents can be used to further remove the difficult-to-degrade organic matter, ammonia nitrogen, heavy metals, etc. in the wastewater. Then, membrane separation technology, such as reverse osmosis (RO), nanofiltration (NF), and ultrafiltration (UF), can be used to remove particles as small as micron and soluble substances.

[0063] In summary: the device can automatically shovel the separated solid particles into the storage box 404 for centralized storage, and can make the solid particles fall and be stored in the storage mechanism 4 so that the staff can centrally process them;

[0064] Moreover, during the aeration treatment process, the rotary injection method can make oxygen more evenly distributed in the wastewater. Compared with static injection, the rotary injection can diffuse oxygen to various areas of the industrial wastewater treatment tank 1 through movement, avoiding the concentration of oxygen in local locations, and the demand for oxygen by microorganisms is evenly distributed. Therefore, rotary injection can ensure that the microorganisms in the entire industrial wastewater treatment tank 1 can obtain sufficient oxygen, thereby improving the degradation efficiency of organic matter.

[0065] It is worth noting that the method for the multi-stage treatment device for industrial wastewater in this embodiment to perform multi-stage treatment on industrial wastewater is specifically as follows:

[0066] 1. Preliminary physical filtration

[0067] Sieve plate filtration: The wastewater first enters the industrial wastewater treatment tank 1 through the first ball valve 102 and undergoes preliminary physical filtration through the sieve plate 107. The sieve plate 107 can remove larger solid particles in the wastewater and allow these particles to remain on the upper surface of the sieve plate 107.

[0068] 2. Particle segmentation and pressing

[0069] Splitting and scraping mechanism: Driven by the motor 2, the connecting rod 201 drives the splitting and scraping mechanism 5 to rotate and scrape the upper surface of the sieve plate 107. The splitting wheel 502 splits and crushes the large particles on the sieve plate 107 by rotating, which helps to break the large solid particles into smaller particles and squeeze out the water therein.

[0070] Scraping and collection: The divided solid particles are pushed into the drop port 108 by the scraping operation of the scraper 509, and then collected by the storage mechanism 4 (especially the storage box 404) to facilitate subsequent processing.

[0071] 3. Aeration treatment

[0072] Aeration and conveying mechanism: The wastewater after preliminary filtration and segmentation and squeezing is stored in the lower part of the industrial wastewater treatment tank 1. The aeration and conveying mechanism 3 injects air or oxygen into the sleeve 302 through the air inlet pipe 301, and then conveys it to the air supply pipe 303 and the stirring rod 304. The stirring rod 304 evenly distributes the air or oxygen into the wastewater during the rotation process, thereby increasing the dissolved oxygen content in the wastewater and promoting the degradation of organic pollutants by microorganisms.

[0073] Advantages of rotary injection: Compared with traditional static injection, rotary injection can ensure that oxygen is more evenly distributed in the wastewater, avoiding the concentration of oxygen in local locations, thereby improving the degradation efficiency of organic matter.

[0074] 4. Solid-liquid separation and subsequent treatment

[0075] Cone guide: The conical surface design of the cone 106 can guide the particulate matter in the wastewater to the periphery to avoid covering the filter holes on the top of the cone. These particulate matter can continue to participate in degradation in the industrial wastewater treatment tank 1, or be discharged through the second ball valve 103 for further dehydration treatment.

[0076] Multi-stage treatment: The wastewater after aeration treatment is discharged into the sedimentation tank through the second ball valve 103 at the bottom of the cone 106 for solid-liquid separation. Subsequently, chemical agents can be used to remove refractory organic matter, ammonia nitrogen, heavy metals, etc. in the wastewater. Finally, membrane separation technology (such as reverse osmosis, nanofiltration, and ultrafiltration) can be used to remove particles as small as microns and soluble substances to achieve deep purification of wastewater.

[0077] Summarize

[0078] This solution achieves multi-stage treatment of industrial wastewater through multiple steps such as sieve plate filtration, particle segmentation and squeezing, aeration treatment, solid-liquid separation and subsequent treatment. Each step is designed for different pollutants and characteristics in the wastewater to ensure efficient and thorough wastewater treatment. This multi-stage treatment method not only improves the treatment efficiency of wastewater, but also reduces the treatment cost, and has broad application prospects.

[0079] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage treatment device for industrial wastewater, characterized in that: For treating industrial wastewater, comprising: an industrial wastewater treatment pool (1), a top cover (101) fixedly mounted on the upper surface of the industrial wastewater treatment pool (1), a motor (2) fixedly mounted on the upper surface of the top cover (101), an output shaft of the motor (2) passing through the top cover (101) and being located in the industrial wastewater treatment pool (1), and a connecting rod (201) fixedly mounted on the end of the output shaft of the motor (2), and the connecting rod (201) extending from the center of a sieve plate (107) in the industrial wastewater treatment pool (1) The center part is rotatably penetrated, the sieve plate (107) is fixedly installed in the middle part of the industrial wastewater treatment tank (1), the outer surface of the connecting rod (201) is fixedly installed with a protective cover (202), the lower surface of the protective cover (202) is sealed and installed on the upper surface of the sieve plate (107), and a splitting and scraping mechanism (5) is rotatably installed in the connecting rod (201), and the splitting and scraping mechanism (5) can penetrate from both ends of the protective cover (202) and can roll and scrape on the surface of the sieve plate (107); An aeration conveying mechanism (3) is fixedly mounted on the lower surface of a connecting rod (201) located on the lower surface of the sieve plate (107); an air inlet end of the aeration conveying mechanism (3) extends from the inside of the industrial wastewater treatment tank (1) to the outside; a connecting block (104) is fixedly mounted on the lower surface of the top cover (101); a storage mechanism (4) is fixedly mounted in the connecting block (104); a closed end of the storage mechanism (4) can be slid open from a drop opening (108); and the drop opening (108) is provided on the sieve plate (107); The segmentation and scraping mechanism (5) comprises a limiting ring (505), a connecting column (501) is fixedly mounted on one end of the limiting ring (505), the connecting column (501) is rotatably mounted in the connecting rod (201) via the limiting ring (505), the connecting column (501) extends through the protective cover (202) and a segmentation wheel (502) is fixedly mounted on the outer surface thereof, the segmentation wheel (502) can roll on the upper surface of the sieve plate (107) as the connecting rod (201) rotates, wherein: A toothed ring (503) is fixedly mounted on the outer surface of the connecting column (501), and the toothed ring (503) is capable of meshing with a toothed disc (504). The toothed disc (504) is fixedly mounted on the upper surface of the sieve disc (107). The toothed disc (504) and the toothed ring (503) are sheathed in a protective cover (202) so as to avoid being covered and causing teeth to get stuck when large particles are cut; When the connecting column (501) is driven to rotate by the connecting rod (201), the connecting column (501) can be meshed with the fixed toothed disc (504) through the toothed ring (503) on the outer surface, so that the dividing wheel (502) can rotate on its own during the process of being driven to rotate, thereby dividing the large particles; A first electric push rod (506) is inserted and installed in the connecting column (501), and the outer front end of the first electric push rod (506) is fixedly installed in the connecting rod (201). A storage tube (507) is fixedly installed at one end of the piston rod of the first electric push rod (506), and the storage tube (507) can slide out from the other end of the connecting rod (201) and the protective cover (202). A guide column (508) is fixedly installed in the storage tube (507), and a scraper (509) is slidably installed on the outer surface of the guide column (508). A spring (510) is provided in a guide groove in the scraper (509) for the guide column (508) to slide, and two ends of the spring (510) are respectively in contact between the guide grooves of the guide column (508) and the scraper (509); When the storage cylinder (507) is pushed out of the protective cover (202), the scraper (509) can be pushed out of the storage cylinder (507) by the spring (510) so that it contacts the upper surface of the sieve plate (107) to scrape the segmented particles; One end of the lower surface of the scraper (509) is provided with an inclined sliding surface, so that when the scraper (509) is pulled back by the first electric push rod (506), the inclined sliding surface can contact the inclined sliding surface of the inclined sliding plate (203), so that the scraper (509) can be pressed and stored in the storage tube (507).

2. A multi-stage treatment device for industrial wastewater according to claim 1, characterized in that: The upper end of the outer surface of the industrial wastewater treatment tank (1) is connected to a first ball valve (102) installed thereon, and the lower end of the inner surface of the industrial wastewater treatment tank (1) is detachably installed with a cone disk (106), the cone disk (106) being in a vacuum state, a filter hole being provided at the top center of the upper surface of the cone disk (106), and the lower end of the cone disk (106) is connected to a second ball valve (103) installed thereon.

3. A multi-stage treatment device for industrial wastewater according to claim 2, characterized in that: The conical surface of the conical disk (106) can guide particulate matter generated during aeration treatment of wastewater toward the periphery of the conical disk (106), thereby preventing the particulate matter from covering the filter holes at the top of the conical disk (106).

4. A multi-stage treatment device for industrial wastewater according to claim 1, characterized in that: The outer surface of the dividing wheel (502) is annular and has multiple groups of long strips fixedly mounted thereon.

5. A multi-stage treatment device for industrial wastewater according to claim 1, characterized in that: The storage mechanism (4) comprises a second electric push rod (401), the second electric push rod (401) being fixedly mounted in the connection block (104), the front end of the second electric push rod (401) passing through the connection block (104) and the industrial wastewater treatment tank (1), a connecting arm (402) being fixedly mounted on one end of the piston rod of the second electric push rod (401), a baffle (403) being fixedly mounted on the other end of the connecting arm (402), the baffle (403) being slidably mounted in a drop-out opening (108), the drop-out opening (108) being connected to the outer surface of the industrial wastewater treatment tank (1), and being capable of allowing the connecting arm (402) to pull the baffle (403) out of the drop-out opening.

6. A multi-stage treatment device for industrial wastewater according to claim 5, characterized in that: A storage box (404) is attached to the lower surface of the baffle (403), and the storage box (404) is slidably installed in the storage frame (105). The storage frame (105) is fixedly installed on the lower surface of the sieve plate (107) so that the opening of the storage box (404) can be flush with the drop opening (108).

7. A multi-stage treatment device for industrial wastewater according to claim 1, characterized in that: The aeration and conveying mechanism (3) comprises an air supply pipe (303), an air inlet is provided on the outer surface of the air supply pipe (303), a sleeve (302) is sealed on the outer surface of the air supply pipe (303), one end of the sleeve (302) is connected to an air inlet pipe (301), and the air inlet pipe (301) passes through the industrial wastewater treatment tank (1).

8. A multi-stage treatment device for industrial wastewater according to claim 7, characterized in that: The air intake pipe (301) is sealed by the sleeve (302), so that the air intake pipe (301) and the air supply pipe (303) can be connected.

9. A multi-stage treatment device for industrial wastewater according to claim 8, characterized in that: Three groups of stirring rods (304) are connected and installed on the outer surface of the lower end of the air supply pipe (303), and the outer surfaces of the stirring rods (304) are provided with exhaust holes.

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