A sewage filtering device and filtering method suitable for various environments and equipment

Abstract

The present invention provides a sewage filtering device and a filtering method applicable to various environments and equipment, comprising a filter tank, a coarse filter assembly, a water return device, and a stirring device. A control panel for controlling the overall equipment is fixedly connected to the filter tank body, and a support foot for adjusting the height of the filter tank is fixedly connected to the bottom of the filter tank. A water outlet is fixedly connected to the top of the filter tank, and a pipe extending to the inside of the filter tank is connected through the water outlet. At the same time, a water outlet connected to a control panel signal is fixedly connected to the end of the pipe inside the filter tank, and the water outlet is openable and closable. A coarse filter assembly for introducing sewage is conductively connected to the bottom of the filter tank, and a fine filter layer for secondary filtering of sewage is fixedly connected to the middle section of the filter tank. The present invention provides a sewage filtering device and a filtering method applicable to various environments and equipment to solve the problem that the existing filter can only process pollutants in sewage in a single manner, resulting in multiple filtering devices being connected in parallel, increasing space and cost.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to a sewage filtering device and a filtering method suitable for various environments and equipment. Background Art

[0002] In sewage treatment, filters belong to physical treatment methods. Common filters are divided into multi-media filters, manganese sand filters, activated carbon filters, etc. The physical phases of the filter materials are used to filter and purify the sewage. However, for the several existing filtration devices, each filter material can only process one of the sewage indicators. In the current filtration treatment of sewage treatment, it is often necessary to install multiple sets of filters for filtration, which will increase the floor area and waste land. In addition, the cost of filter fillers currently on the market is high, resulting in increased initial costs and later operation and maintenance costs. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a sewage filtering device and filtering method suitable for a variety of environments and equipment, so as to solve the problem that the existing filter can only treat pollutants in sewage alone, resulting in multiple filtering devices being connected in parallel, increasing space and cost.

[0004] The purpose and efficacy of the sewage filtering device and filtering method applicable to various environments and equipment of the present invention are achieved by the following specific technical means: a sewage filtering device and filtering method applicable to various environments and equipment, including a filter tank, a coarse filter assembly, a water return device, and a stirring device, the filter tank body is fixedly connected with a control panel for controlling the overall equipment, and the bottom of the filter tank is fixedly connected with a support foot for adjusting the height of the filter tank, the top of the filter tank is fixedly connected with a water outlet end, and a pipe extending to the inside of the filter tank is connected through the water outlet end, and a water outlet connected to the control panel signal is fixedly connected to the end of the pipe located inside the filter tank, and the water outlet is openable and closable, the bottom of the filter tank is conductively connected with a coarse filter assembly for introducing sewage, and the middle section of the filter tank is fixedly connected with a fine filter layer for secondary filtering of sewage, and the fine filter layer is rotatably connected with a stirring device running through it from top to bottom, and the filter tank body is conductively connected with a water return device crossing the fine filter layer.

[0005] The fine filter layer includes a partition, which is provided with two pieces, fixedly connected to the upper and lower sections inside the filter tank respectively, and the partition body is provided with through holes that penetrate up and down, and the partitions are filled with fine coal gangue.

[0006] Among them, a built-in pipe is embedded in the inner wall of the filter tank, and the end of the built-in pipe extends into the coarse filter assembly. At the same time, the upper end of the tank body on one side of the filter tank is connected to a filling port that penetrates to the top of the fine filter layer, and the lower end of the tank body on one side of the filter tank is connected to a discharge port that penetrates to the bottom of the fine filter layer. A transmission groove that is unidirectionally connected to the built-in pipe is opened on the inner wall of the filter tank.

[0007] Among them, a collection box for storing filtered dirt is opened inside the coarse filter assembly, and a water inlet pipe for transmitting sewage is connected through the center of the bottom of the coarse filter assembly, and the top of the water inlet pipe is connected to a coarse filter device for preliminary filtering of the sewage. At the same time, the top of the coarse filter device is connected to a three-way joint, and both ends of the three-way joint are connected to water pipes extending to the bottom of the filter tank.

[0008] Among them, the coarse filtration device includes an outer shell and a filter element. A hollow cavity with an open top is provided inside the outer shell, and the bottom of the outer shell is connected to the water inlet pipe. At the same time, a clamping groove is provided on the inner wall of the inner shell, and a discharge port is provided on the outer inner wall of the outer shell that is unidirectionally connected to the clamping groove. The filter element is rotatably connected to the hollow cavity inside the outer shell.

[0009] Among them, a ball groove that is unidirectionally conductive to the outside is provided on the inner wall outside the filter element, and a transmission ball is rotatably connected between the ball groove and the clamping groove, and the transmission ball has water-proof and dirt-adhesive properties. A through hole that passes through the filter element from top to bottom is provided inside the filter element, and a connecting column is provided at the center of the through hole. At the same time, a filter plate that is inclined at a 45° angle and keeps the through hole sealed is fixedly connected between the connecting column body and the through hole. The interior of the filter plate is a hollow structure, and the interior of the filter plate is filled with replaceable coarse coal gangue. At the same time, water conduction holes are provided on the inner walls at the upper and lower ends of the filter plate, and a slag discharge port that is conductive to the ball groove is provided on the inner wall of the filter plate close to one end of the filter element.

[0010] Among them, the return water device includes a return pipe, and there are multiple return pipes, and the two ends of the return pipe are respectively connected to the upper and lower ends of the filter tank. At the same time, the bottom end of the return pipe is a one-way valve that conducts one direction to the inside of the filter tank, and the top of the return pipe is provided with an electric control valve connected to the control panel signal, and the inner wall of the return pipe body is provided with a water pump connected to the control panel signal.

[0011] Among them, the stirring device includes a shaft rod, which vertically penetrates the partitions at the upper and lower ends of the fine filter layer, and a driving disk is fixedly connected to the shaft rod body located outside the partition, and a through hole that is conductive up and down is opened inside the driving disk, and a driving fan fixedly connected to the shaft rod is fixedly connected to the inner wall of the through hole inside the driving disk, and a stirring plate arranged in alignment with the transmission groove is fixedly connected to the shaft rod body located in the fine filter layer.

[0012] Among them, the stirring plate is arranged in a trapezoidal shape and has a hollow structure inside. A drainage groove larger than the diameter of fine coal gangue is provided on the inner wall at the top of the stirring plate, and cleaning components are provided in the inner walls at both ends of the drainage groove. At the same time, a one-way drainage port is provided on the side wall at one end of the stirring plate away from the shaft rod. The cleaning component includes a cleaning shaft, which has water-proof properties and dirt adhesion, and the diameter of the cleaning shaft is larger than the thickness of the inner wall of the drainage groove, so that the cleaning shaft body protrudes into the drainage groove. At the same time, one end of the cleaning shaft located inside the stirring plate is meshed with a scraper, one end of the scraper is meshed with the cleaning shaft, and the other end is fixedly connected to a bracket connected to the inner wall of the stirring plate.

[0013] Among them, the use method of the device for sewage filtration suitable for various environments and equipment:

[0014] S1: First, the sewage is transmitted to the coarse filter device inside the coarse filter assembly through the water inlet pipe, and the sewage is primarily filtered through the filter element in the coarse filter device. At the same time, CODCr, NH3-N, chromaticity, suspended matter and other dirt in the sewage are filtered out under the filtration of coarse coal gangue, and the filtered dirt is introduced into the collection box in conjunction with the slag discharge port, transmission ball and discharge port;

[0015] S2: The sewage after the preliminary filtration will enter the filter tank through the water pipe. As the sewage rises, it will enter the fine filter layer through the holes on the partition. The fine coal gangue in the fine filter layer will be used to purify the sewage for the second time.

[0016] S3: If the filtering effect needs to be improved, after the filter tank is filled with sewage, the through-hole control panel closes the water inlet pipe and the water outlet, controls the electric control valve in the water return device to open, and finally controls the water pump to work, so that the sewage can circulate in the filter tank, thereby improving the filtering effect;

[0017] S4: When sewage flows in the filter tank, the water flow will drive the stirring device to rotate, so that the stirring plate in the stirring device cleans the fine coal gangue in the fine filter layer, and transmits the dirt filtered out of the fine filter layer to the collection box through the transmission trough and the built-in pipe, thereby reducing the dirt in the fine filter layer and improving the effect of fine coal gangue on sewage filtration.

[0018] Beneficial effects:

[0019] (1) By providing a coarse filter assembly, the dirt filtered out by the stirring device and the coarse filter device is introduced into a collection box for storage using a built-in pipeline and a coarse filter device, thereby ensuring the cleanliness of the coarse coal gangue and fine coal gangue in the fine filter layer and the filter plate, thereby achieving the effect of improving the filtration quality.

[0020] (2) A coarse filtering device is provided, and the sewage flows through the filter plate so that the filter plate drives the filter element to rotate inside the outer shell. When the filter plate rotates, the centrifugal force is used to throw the dirt filtered out during the filtering of the coarse coal gangue to the outer wall of the filter element. At this time, the transmission ball is used to transfer the dirt from the ball groove to the clamping groove, and finally discharged through the discharge port, thereby achieving the effect of using centrifugal force to transfer the dirt filtered out of the coarse coal gangue to the collection box.

[0021] (3) A water return device is provided, and the state of the return pipe is controlled by an electric control valve and a water pump. Under the action of the water pump, the sewage in the filter tank circulates in the filter tank through the return pipe through the pump, so that the sewage is repeatedly filtered through the fine filter layer, achieving the effect of multiple filtration of the sewage.

[0022] (4) A stirring device is provided, and the driving disks at the upper and lower ends of the shaft are used to drive the shaft to rotate under the action of the sewage flow. At this time, the stirring plate on the shaft will use the drainage groove at the top of the plate body to guide the fine coal gangue into it, and use the cleaning shafts at both ends of the drainage groove to clean and collect the dirt on the surface of the fine coal gangue. At the same time, the collected dirt will be brushed into the built-in pipe under the action of the centrifugal force generated by the rotation, and finally fall into the collection box for collection, thereby achieving the effect of cleaning and collecting the dirt generated when filtering the fine coal gangue in the fine filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall side cross-sectional structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the side cross-sectional structure of the coarse filter assembly of the present invention.

[0026] Figure 4 It is a schematic diagram of the explosion structure of the coarse filtering device of the present invention.

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the filter plate of the present invention.

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the water return device of the present invention.

[0029] Figure 7 It is a schematic diagram of the local structure of the stirring device of the present invention.

[0030] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the stirring device of the present invention.

[0031] Fig. 9 It is a schematic diagram of the structure of the stirring plate of the present invention.

[0032] Fig.10It is a schematic diagram of the side cross-sectional structure of the stirring plate of the present invention.

[0033] Fig.11 For the present invention Fig.10 Enlarged structural diagram at A in the middle.

[0034] Figure 1-11 In the figure, the corresponding relationship between the component names and the figure numbers is: 1-filter tank, 101-control panel, 102-support foot, 103-water outlet, 104-filling port, 105-discharging port, 106-built-in pipeline, 107-transmission trough, 108-pipeline, 109-water outlet, 110-fine filter layer, 111-partition, 112-fine coal gangue, 2-coarse filter assembly, 201-collection box, 202-water inlet pipe, 203-coarse filter device, 204-tee joint, 205-water pipe, 206-housing, 207-card slot, 208-discharge Material inlet, 209-filter element, 210-ball groove, 211-transmission ball, 212-connecting column, 213-filter plate, 214-coarse coal gangue, 215-slag discharge port, 216-water guide hole, 3-water return device, 301-check valve, 302-electrically controlled valve, 303-water pump, 304-reflux pipe, 4-stirring device, 401-shaft rod, 402-stirring plate, 403-drive disk, 404-drive fan, 405-drainage trough, 406-cleaning component, 407-drainage port, 408-cleaning shaft, 409-bracket, 410-scraper. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] As attached Figure 1 To Attachment Figure 5 As shown: when the present invention is powered on as a whole, the control panel 101 outside the filter tank 1 can control the working states of the water outlet 109 in the water outlet end 103, the electric control valve 302 in the water return device 3, and the water pump 303, thereby controlling the flow direction of the sewage.

[0038] When sewage is transmitted through the water inlet pipe 202 in the coarse filter assembly 2, the sewage first enters the coarse filter device 203, and then the sewage enters the outer shell 206. As the sewage flows, it will fill the inside of the outer shell 206. The sewage will enter the three-way joint 204, enter the water pipe 205, and enter the filter tank 1. At the same time, when the sewage flows, it will pass through the filter element 209.

[0039] When sewage passes through the filter element 209, the filter plate 213 inside it will drive the filter element to rotate as a whole under the action of the sewage flow, and the sewage will enter the filter plate 213 through the water guide holes 216 on the filter plate 213. At this time, the sewage will be filtered by the coarse coal gangue 214 inside the filter plate 213, and the larger residual dirt and CODCr, NH3-N, chroma, and suspended matter in the sewage will be filtered. At the same time, when the filter element 209 rotates, centrifugal force will be generated inside the filter plate 213, so that the dirt filtered out from the filter plate 213 is thrown to the slag discharge port 215 by the centrifugal force, and the dirt enters the ball groove 210 through the slag discharge port 215, and then the dirt is transmitted to the clamping groove 207 through the transmission 211, and finally falls into the collection box 201 through the discharge port 208 for temporary storage.

[0040] Embodiment 1:

[0041] As attached Figure 1 , 2 6: After the sewage is processed by the coarse filter assembly 2, it will enter the filter tank 1 through the water pipe 105. At this time, as the water level rises, the sewage will be filtered twice through the fine filter layer 110. If the number of filtration times needs to be increased, after the sewage fills the filter tank 1, the control panel 101 controls the water outlet 109 to close, and controls the opening and closing of the electric control valve 302 at the top of the return pipe 304, and stops conveying sewage into the filter tank 1.

[0042] At this time, by controlling the operation of the water pump 303, the sewage located at the top of the filter tank 1 and filtered by the fine filter layer 110 passes through the top of the return pipe 304 into the pipe and flows back to the bottom of the filter tank 1, thereby forming a circular exchange path, so that the sewage can repeatedly pass through the fine filter layer 110 for filtration. After the filtration is completed, the water outlet 109 is opened and closed through the control panel 101, and the electric control valve 302 is closed to allow the sewage to be discharged from the filter tank 1 through the water outlet 109.

[0043] Embodiment three:

[0044] As attached Figure 2 , 7 As shown in Figures 8, 9, 10 and 11: when the sewage flows in the filter tank 1, it will pass through the through holes on the partition plate 111 and enter the fine filter layer 110. At this time, the fine coal gangue 112 in the fine filter layer 110 will filter the dirt in the sewage again. At the same time, when the sewage flows inside the filter tank 1, the driving fan 404 inside the driving disk 403 will drive the shaft 401 to rotate under the action of the water flow.

[0045] When the shaft 401 rotates, the stirring plate 402 located on the rod body inside the fine filter layer 110 will rotate accordingly, and the stirring plate 402 uses its trapezoidal design to make the fine coal gangue 112 move upward with the rotation of the stirring plate 402, so that the fine coal gangue 112 changes position through the stirring plate 402, so that the fine coal gangue 112 can fully contact with the sewage to improve the filtering effect.

[0046] When the stirring plate 402 rotates to move the fine coal gangue 112, the fine coal gangue 112 will enter the drainage trough 405. At this time, the cleaning shafts 408 inside the two sides of the drainage trough 405 will clean the dirt on the surface of the fine coal gangue 112, and will rotate when the cleaning shafts 408 come into contact with the fine coal gangue 112, so that the cleaning shafts 408 rotate and come into contact with the scraper 410, and the dirt adhered to the cleaning shafts 408 will be scraped off to the inside of the stirring plate 402. At the same time, when the stirring plate 402 rotates, the dirt inside it will be thrown toward the sewage outlet 407 under the action of centrifugal force, and will be transmitted to the transmission trough 107 through the sewage outlet 407 and enter the built-in pipe 106, and finally the dirt will be introduced into the collection box 201 through the built-in pipe 106 for storage.

[0047] Working principle: The sewage is introduced into the coarse filter assembly 2 through the water inlet pipe 202. At this time, the sewage will enter the outer shell 206. As the sewage flows, it will fill the inner part of the outer shell 206. The sewage will enter the three-way joint 204, enter the water pipe 205, and enter the filter tank 1. At the same time, the sewage will pass through the filter element 209 when it flows.

[0048] When sewage passes through the filter element 209, the filter plate 213 inside it will drive the filter element to rotate as a whole under the action of the sewage flow, and the sewage will enter the filter plate 213 through the water guide holes 216 on the filter plate 213. At this time, the sewage will be filtered by the coarse coal gangue 214 inside the filter plate 213, and the larger residual dirt and CODCr, NH3-N, chroma, and suspended matter in the sewage will be filtered. At the same time, when the filter element 209 rotates, centrifugal force will be generated inside the filter plate 213, so that the dirt filtered out from the filter plate 213 is thrown to the slag discharge port 215 by the centrifugal force, and the dirt enters the ball groove 210 through the slag discharge port 215, and then the dirt is transmitted to the clamping groove 207 through the transmission 211, and finally falls into the collection box 201 through the discharge port 208 for temporary storage.

[0049] After the sewage that has been initially filtered enters the filter tank 1, it will pass through the fine filter layer 110 for secondary filtration again. When the sewage flows in the filter tank 1, it will drive the stirring device 4 to rotate. At this time, the stirring plate 402 located on the rod body inside the fine filter layer 110 will rotate accordingly, and the stirring plate 402 uses its trapezoidal design to make the fine coal gangue 112 move upward with the rotation of the stirring plate 402, so that the fine coal gangue 112 changes its position through the movement of the stirring plate 402, so that the fine coal gangue 112 can fully contact with the sewage to improve the filtering effect.

[0050] When multiple filtrations are required, after the sewage fills the filter tank 1, the solenoid valve in the water outlet 109 is closed through the control panel 101, and the electric control valve 302 at the top of the return pipe 304 is opened and closed to stop conveying sewage into the filter tank 1. By controlling the operation of the water pump 303, the sewage located at the top of the filter tank 1 and filtered by the fine filter layer 110 passes through the top of the return pipe 304 and flows back to the bottom of the filter tank 1, thereby forming a circulating exchange path, thereby achieving the effect of multiple filtration of the sewage.

Claims

1. A sewage filtering device suitable for various environments and equipment, comprising a filter tank (1), a coarse filter assembly (2), a water return device (3), and an agitation device (4), wherein a support structure is provided at the bottom of the filter tank (1), and a water outlet (103) is provided at the top of the filter tank (1), and the characteristics are: The bottom of the filter tank (1) is provided with a coarse filter assembly (2) for conducting sewage into the filter tank (1) and performing preliminary treatment on the sewage, and the center of the filter tank (1) is provided with a fine filter layer (110) for secondary filtering of the sewage, and the outside of the filter tank (1) is provided with a return water device (3) for circulating and filtering the sewage inside the filter tank (1), and the fine filter layer (110) is provided with a stirring device (4) for cleaning; The coarse filter assembly (2) is provided with a collecting box (201), and a coarse filter device (203) is provided at the top of the coarse filter assembly (2). A water inlet pipe (202) for introducing external sewage is provided at the bottom of the coarse filter device (203), and a three-way joint (204) and a water pipe (205) for introducing sewage into the filter tank (1) are provided at the top of the coarse filter device (203); The coarse filtering device (203) comprises a housing (206) and a filter element (209); a hollow cavity with a top opening is provided inside the housing (206); the filter element (209) is rotatably connected to the hollow cavity; and a notch for connection is provided between the outside of the filter element (209) and the inside of the housing (206); The water return device (3) comprises a return pipe (304), the return pipe (304) being arranged outside the filter tank (1), and the return pipe (304) being conductively connected to the upper and lower ends of the filter tank (1), and water-saving structures being arranged at both ends of the return pipe (304), and a water pump (303) being arranged inside the return pipe (304); The stirring device (4) comprises a shaft (401), the shaft (401) penetrates the fine filter layer (110), and power structures are provided at the upper and lower ends of the shaft (401), and a stirring plate (402) is provided on the shaft of the shaft (401) located inside the fine filter layer (110); The filter tank (1) has an internal pipe (106) embedded in the inner wall of the tank body, and the internal pipe (106) extends into the coarse filter assembly (2), and a transmission groove (107) is provided in the internal pipe (106); The stirring plate (402) is arranged in a trapezoidal shape, a sewage outlet (407) is provided at the bottom of the side wall of the stirring plate (402), and a drainage groove (405) is provided at the top of the stirring plate (402). Cleaning components (406) for cleaning the filter material inside the fine filter layer (110) are provided on both sides of the drainage groove (405), and the cleaning components (406) include a cleaning shaft (408), a bracket (409), and a scraper (410). The fine filter layer (110) includes a partition (111). The partition (111) is provided with two pieces, which are respectively fixedly connected to the upper section and the lower section inside the filter tank (1), and a through hole is provided on the body of the partition (111) that penetrates from top to bottom, and fine coal gangue (112) is filled between the partitions. When the stirring plate (402) rotates to move the fine coal gangue (112), the fine coal gangue (112) will enter the drainage trough (405). At this time, the cleaning shafts (408) inside the two sides of the drainage trough (405) will clean the dirt on the surface of the fine coal gangue (112), and the cleaning shafts (408) will rotate when they come into contact with the fine coal gangue (112), so that the cleaning shafts (408) rotate and come into contact with the scraper (410), and the dirt adhering to the cleaning shafts (408) is scraped off to the inside of the stirring plate (402). At the same time, when the stirring plate (402) rotates, the dirt inside it will be thrown toward the sewage outlet (407) under the action of centrifugal force, and transmitted to the transmission trough (107) through the sewage outlet (407) and enter the built-in pipe (106), and finally the dirt is introduced into the collection box (201) through the built-in pipe (106) for storage.

2. The sewage filtering device applicable to various environments and equipment according to claim 1 is characterized in that: The filter tank (1) is provided with a loading and unloading structure for replacing the filter material in the fine filter layer (110).

3. The sewage filtering device applicable to various environments and equipment according to claim 1 is characterized in that: A transmission ball (211) is provided between the outer side of the filter element (209) and the outer shell (206), and a through hole for conducting upward is provided in the center of the filter element (209), and a filter plate (213) for filtering sewage is provided in the through hole.

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