CN110143730B

CN110143730B - Sewage treatment device capable of treating particulate matters through multistage grading and layering

Info

Publication number: CN110143730B
Application number: CN201910546636.9A
Authority: CN
Inventors: 余成鹏
Original assignee: Wencheng Jianchuang Technology Co ltd
Current assignee: Wencheng Jianchuang Technology Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2021-10-12
Anticipated expiration: 2039-06-24
Also published as: CN110143730A

Abstract

The invention discloses a sewage treatment device capable of treating particulate matters in a multistage grading and layering manner, which relates to the technical field of sewage treatment and comprises a settling tank, a first filtering chamber and a second filtering chamber, wherein a water inlet pipe is connected above the settling tank, a flocculating agent layer is arranged on the inner wall of the settling tank, primary connecting water pipes are fixedly connected to two sides of the settling tank, a grading treatment component is arranged below the primary connecting water pipes, and the inner side of the grading treatment component comprises a treatment tank, a first partition plate, a fixed rod, a second partition plate, a shaft sleeve, a rotating shaft, a fixed frame and a fishing net. The invention has the beneficial effects that: the device is convenient for carry out the edulcoration processing to sewage in grades through the setting to hierarchical processing subassembly, and fixed frame and scoop net constitute the impact that rotation structure is convenient for utilize rivers through the rotation axis and make the rotation axis drive fixed frame and scoop net rotate to salvaging the suspended solid in the sewage, and the fixed frame of multiunit and scoop net can use raising the efficiency simultaneously.

Description

Sewage treatment device capable of treating particulate matters through multistage grading and layering

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device capable of treating particulate matters in a multistage grading and layering manner.

Background

Sewage treatment refers to a process of purifying sewage to meet the water quality requirement for discharge into a certain water body or reuse. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.

Although the multistage sewage treatment device disclosed in the chinese patent application publication CN108862944A achieves the functions of multistage decontamination and water body precipitation purification through an oxidation reaction tank, a disinfection tank, etc., the sewage treatment device generally does not have a structure of stage treatment, and cannot perform multistage layered treatment on sewage, so that sewage filtration is not sufficient and thorough, particulate impurities in the sewage cannot be collected, the water quality after sewage treatment is still turbid, and the pipeline connection is easy to be blocked.

Disclosure of Invention

The invention aims to provide a sewage treatment device capable of treating particulate matters in a multistage hierarchical and layered manner, and aims to solve the problems that the sewage treatment device provided in the background art generally does not have a hierarchical treatment structure, cannot carry out multistage hierarchical treatment on sewage, cannot filter the sewage sufficiently and thoroughly, cannot collect and treat particulate matters and impurities in the sewage, the water quality after sewage treatment is still turbid, and the pipeline connection position is easy to be blocked.

In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment device capable of treating particulate matters in a multistage grading and layering manner comprises a settling tank, a first filtering chamber and a second filtering chamber, wherein a water inlet pipe is connected above the settling tank, a flocculating agent layer is arranged on the inner wall of the settling tank, a primary connecting water pipe is fixedly connected to two sides of the settling tank, a grading treatment assembly is arranged below the primary connecting water pipe, the inner side of the grading treatment assembly comprises a treatment tank, a first partition plate, a fixing rod, a second partition plate, a shaft sleeve, a rotating shaft, a fixing frame and a fishing net, the first partition plate is arranged on one side inside the treatment tank, the fixing rod is arranged on the other side inside the treatment tank, the second partition plate is fixed to two sides of the fixing rod, the shaft sleeve is arranged below the fixing rod, the rotating shaft is arranged on two sides of the shaft sleeve, the fixing frame is arranged on the outer side of the rotating shaft, the inner wall of the fixing frame is provided with the fishing net, first filter chamber is installed in the below of hierarchical processing subassembly, and the inside of first filter chamber is provided with first filtration edulcoration subassembly, the water pipe is connected to the bottom fixedly connected with secondary of first filter chamber, and one side that the water pipe was connected to the secondary is provided with the water pump, the aeration case is installed to the end that the water pipe was connected to the secondary, and is provided with the active carbon filter layer above the inside of aeration case, the below of active carbon filter layer is provided with biological filter layer, and biological filter layer's below installs the aeration pipe, the outside below of aeration case is connected with the cubic and is connected the water pipe, the second filter chamber is installed in the bottom that the water pipe was connected to the cubic, and the inside of second filter chamber is provided with the second and filters the edulcoration subassembly, the junction of water pipe and aeration case is connected to the cubic is fixed with the interception net, and the anti-blocking subassembly is installed in the outside of interception net.

Preferably, the fixed frame and the fishing net form a rotating structure through the rotating shaft, and the fixed frame and the fishing net are uniformly distributed on the outer side of the rotating shaft in an annular radial shape.

Preferably, first filtration edulcoration subassembly is including filter screen frame, filter screen inside casing, filter screen, the dirty frame of collection, frame plate, strainer and flow distribution plate, the filter screen frame is installed in the inside of first filter chamber, and the inside of filter screen frame is provided with the filter screen inside casing, be fixed with the filter screen between filter screen frame and the filter screen inside casing, and the internally mounted of filter screen frame has the dirty frame of collection, the top outside of the dirty frame of collection is fixed with the frame plate, and is bolted connection between frame plate and the filter screen inside casing, the bottom and the outside of the dirty frame of collection all set up to the strainer, the flow distribution plate is installed in the inside top of first filter chamber.

Preferably, filter screen frame and filter screen inside casing be integral structure, and the cross section of filter screen frame and filter screen inside casing is decurrent arc bending structure, the centre of symmetry of the dirty frame of collection coincides with the centre of symmetry of filter screen inside casing, and the dirty frame of collection and frame plate pass through and constitute detachable construction between bolt and the filter screen inside casing.

Preferably, the flow distribution plate is in a conical structure, and the symmetry center of the flow distribution plate is overlapped with the symmetry center of the first filter chamber.

Preferably, the second filters edulcoration subassembly is including fixed grillage, inclined plate frame, non-woven fabrics filter layer and the dirty groove of collection, fixed grillage is installed in the inside of second filter chamber, and the inboard fixedly connected with inclined plate frame of fixed grillage, all be provided with the non-woven fabrics filter layer in the middle of the inside of fixed grillage and inclined plate frame, the dirty groove of collection is installed to the inboard below of inclined plate frame.

Preferably, the fixed plate frame and the inclined plate frame are symmetrical about a vertical central line of the sewage collecting tank, and the inclined plate frame is of an inclined structure towards one side of the sewage collecting tank.

Preferably, prevent that stifled subassembly includes spacing groove, scrubbing scraper blade, slider, spout, float bar and punching press board, the spacing groove is fixed in the inner wall of aeration tank, and the internally mounted of spacing groove has the scrubbing scraper blade, the both ends of scrubbing scraper blade are fixed with the slider, and the outside of slider is provided with the spout, the top outside of scrubbing scraper blade is connected with the float bar, and the inboard mid-mounting of float bar has the punching press board.

Preferably, the inner side surface of the decontamination scraper is attached to the outer side surface of the interception net, and the decontamination scraper forms a sliding structure with the sliding groove through the sliding block.

The invention provides a sewage treatment device capable of treating particulate matters by multistage grading and layering, which has the following beneficial effects:

1. according to the invention, the classification treatment component is arranged to facilitate classification to carry out impurity removal treatment on sewage, the fixed frame and the fishing net form a rotating structure through the rotating shaft, so that the rotating shaft drives the fixed frame and the fishing net to rotate by utilizing the impact of water flow, thus suspended matters in the sewage are fished, and a plurality of groups of fixed frames and fishing nets can be used simultaneously to improve the efficiency.

2. The sewage treatment device is convenient for performing primary filtration and impurity removal on sewage by arranging the first filtration and impurity removal component, the flow distribution plate is in a conical structure and is convenient for distributing sewage water flow from the upper part of the middle part to the periphery, so that the sewage can be firstly contacted with the outer filter screen frame and the water filter screen, the cross sections of the outer filter screen frame and the inner filter screen frame are in downward arc-shaped curved structures so as to be convenient for leading the water flow to drive impurities to be concentrated to the position of the middle sewage collection frame and remove larger particulate impurities, and the sewage collection frame and the frame plate form a detachable structure between the inner filter screen frame and the bolt so as to be convenient for the detachment and installation between the sewage collection frame and the inner filter screen frame.

3. According to the invention, the aeration tank is arranged to facilitate purification treatment of sewage, the activated carbon filter layer can adsorb peculiar smell and particle impurities in the sewage, the aeration pipe can perform aeration, oxygen is injected into the aeration tank, aerobic microorganisms in the biological filter layer can decompose organic matter impurities in the sewage through biological action, and the water quality is improved.

4. The sewage treatment device is convenient for secondary filtration and impurity removal of sewage through the arrangement of the second filtration and impurity removal component, the two groups of symmetrical fixed plate frames and the inclined plate frames can be used simultaneously, the non-woven fabric filter layer is utilized to further filter the sewage to remove smaller particulate matters, and the inclined plate frames are of structures inclined towards one side of the sewage collection groove and can impact the fixed plate frames and the smaller particulate matters attached to the surface of the non-woven fabric filter layer at the inclined plate frame position to the sewage collection groove position under the impact action of water flow.

5. According to the invention, the anti-blocking component is arranged to play a role in preventing blocking, the inner side surface of the decontamination scraper blade is attached to the outer side surface of the interception net, so that impurities possibly existing on the outer side surface of the interception net can be scraped by the decontamination scraper blade, the blocking of the interception net is prevented, and the decontamination scraper blade forms a sliding structure through the sliding block and the sliding groove, so that the decontamination scraper blade can move up and down in the limiting groove by means of the mutual matching between the sliding block and the sliding groove.

Drawings

FIG. 1 is a schematic view of an internal front view structure of a sewage treatment plant capable of treating particulate matters by multistage classification and layering according to the present invention;

FIG. 2 is a schematic view of the internal cross-sectional structure of a treatment tank of the sewage treatment device capable of treating particulate matters by multistage classification and layering according to the present invention;

FIG. 3 is a schematic view of a part A of the sewage treatment apparatus for treating particulate matters by multistage classification and layering according to the present invention;

FIG. 4 is a schematic top view of a first filtration and impurity removal assembly of a sewage treatment plant capable of processing particulate matters by multi-stage classification and layering according to the present invention;

FIG. 5 is a schematic view of the internal structure of an anti-blocking component of the sewage treatment device capable of treating particulate matters by multi-stage classification and layering.

In the figure: 1. a settling tank; 2. a water inlet pipe; 3. a flocculant layer; 4. a primary connection water pipe; 5. a hierarchical processing component; 501. a treatment tank; 502. a first separator; 503. fixing the rod; 504. a second separator; 505. a shaft sleeve; 506. a rotating shaft; 507. a fixing frame; 508. fishing the net; 6. a first filtering chamber; 7. a first filtration and impurity removal component; 701. a filter screen outer frame; 702. a filter screen inner frame; 703. a filter screen; 704. a dirt collecting frame; 705. a frame plate; 706. a water filtering net; 707. a flow distribution plate; 8. secondary connection water pipe; 9. a water pump; 10. an aeration tank; 11. an activated carbon filter layer; 12. a biological filtration layer; 13. an aeration pipe; 14. thirdly, connecting a water pipe; 15. a second filtering chamber; 16. a second filtering and impurity removing component; 1601. fixing the plate frame; 1602. a ramp frame; 1603. a non-woven fabric filter layer; 1604. a sewage collecting tank; 17. an intercepting net; 18. an anti-clogging component; 1801. a limiting groove; 1802. a decontamination scraper; 1803. a slider; 1804. a chute; 1805. a float rod; 1806. and (5) stamping the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a sewage treatment device capable of treating particles in a multistage grading and layering manner comprises a settling tank 1, a first filtering chamber 6 and a second filtering chamber 15, wherein a water inlet pipe 2 is connected above the settling tank 1, a flocculating agent layer 3 is arranged on the inner wall of the settling tank 1, a primary connecting water pipe 4 is fixedly connected to two sides of the settling tank 1, a grading treatment assembly 5 is arranged below the primary connecting water pipe 4, the inner side of the grading treatment assembly 5 comprises a treatment tank 501, a first partition plate 502, fixing rods 503, a second partition plate 504, a shaft sleeve 505, a rotating shaft 506, a fixing frame 507 and a fishing net 508, the first partition plate 502 is arranged on one side of the inside of the treatment tank 501, the fixing rods 503 are arranged on the other side of the inside of the treatment tank 501, the second partition plates 504 are fixed to two sides of the fixing rods 503, the shaft sleeve 505 is arranged below the fixing rods 503, the rotating shaft 506 is arranged on two sides of the shaft sleeve 505, and the fixing frame 507 is arranged on the outer side of the rotating shaft 506, a fishing net 508 is arranged on the inner wall of the fixed frame 507;

the fixed frame 507 and the fishing net 508 form a rotating structure through the rotating shaft 506, the fixed frame 507 and the fishing net 508 are uniformly distributed on the outer side of the rotating shaft 506 in an annular radial manner, the fixed frame 507 and the fishing net 508 form the rotating structure through the rotating shaft 506, so that the rotating shaft 506 drives the fixed frame 507 and the fishing net 508 to rotate by utilizing the impact of water flow, suspended matters in sewage are fished, and the fixed frame 507 and the fishing net 508 are uniformly distributed on the outer side of the rotating shaft 506 in the annular radial manner, so that a plurality of groups of fixed frames 507 and fishing nets 508 can be used simultaneously;

the first filtering chamber 6 is arranged below the grading processing assembly 5, a first filtering and impurity removing assembly 7 is arranged inside the first filtering chamber 6, the first filtering and impurity removing assembly 7 comprises a filtering screen outer frame 701, a filtering screen inner frame 702, a filtering screen 703, a dirt collecting frame 704, a frame plate 705, a water filtering screen 706 and a flow distribution plate 707, the filtering screen outer frame 701 is arranged inside the first filtering chamber 6, the filtering screen inner frame 702 is arranged inside the filtering screen outer frame 701, the filtering screen 703 is fixed between the filtering screen outer frame 701 and the filtering screen inner frame 702, the dirt collecting frame 704 is arranged inside the filtering screen inner frame 702, the frame plate 705 is fixed on the outer side above the dirt collecting frame 704, the frame plate 705 is connected with the filtering screen inner frame 702 through bolts, the water filtering screen 706 is arranged at the bottom and the outer side of the dirt collecting frame 704, and the flow distribution plate 707 is arranged above the inside the first filtering chamber 6;

the filter screen outer frame 701 and the filter screen inner frame 702 are of an integrated structure, the cross sections of the filter screen outer frame 701 and the filter screen inner frame 702 are of a downward arc-shaped bent structure, the symmetric center of the dirt collecting frame 704 is overlapped with the symmetric center of the filter screen inner frame 702, the dirt collecting frame 704 and the frame plate 705 form a detachable structure with the filter screen inner frame 702 through bolts, the cross sections of the filter screen outer frame 701 and the filter screen inner frame 702 are of a downward arc-shaped bent structure so as to enable water flow to drive larger particulate matters to be concentrated to the position of the dirt collecting frame 704 in the middle, the dirt collecting frame 704 and the frame plate 705 form a detachable structure with the filter screen inner frame 702 through bolts so as to facilitate the assembly and disassembly between the dirt collecting frame 704 and the filter screen inner frame 702, the flow distribution plate 707 is of a conical structure, the symmetric center of the flow distribution plate 707 is overlapped with the symmetric center of the first filter chamber 6, the flow distribution plate 707 is of a conical structure so as to distribute the flow of the sewage from the upper part of the middle part to the periphery, so that the sewage can be firstly contacted with the outer frame 701 of the filter screen and the water filter screen 706;

the bottom of the first filtering chamber 6 is fixedly connected with a secondary connecting water pipe 8, one side of the secondary connecting water pipe 8 is provided with a water pump 9, the tail end of the secondary connecting water pipe 8 is provided with an aeration tank 10, an active carbon filtering layer 11 is arranged above the interior of the aeration tank 10, a biological filtering layer 12 is arranged below the active carbon filtering layer 11, an aeration pipe 13 is arranged below the biological filtering layer 12, the outer side of the aeration tank 10 is connected with a tertiary connecting water pipe 14, a second filtering chamber 15 is arranged at the bottom of the tertiary connecting water pipe 14, and a second filtering and impurity removing component 16 is arranged inside the second filtering chamber 15;

the second filtering and decontaminating component 16 comprises a fixed plate frame 1601, an inclined plate frame 1602, a non-woven fabric filtering layer 1603 and a sewage collecting tank 1604, the fixed plate frame 1601 is installed inside the second filtering chamber 15, the inclined plate frame 1602 is fixedly connected to the inner side of the fixed plate frame 1601, the non-woven fabric filtering layer 1603 is arranged between the fixed plate frame 1601 and the inclined plate frame 1602, the sewage collecting tank 1604 is installed below the inner side of the inclined plate frame 1602, the fixed plate frame 1601 and the inclined plate frame 1602 are symmetrical about the vertical center line of the sewage collecting tank 1604, the inclined plate frame 1602 is in a structure inclined towards the sewage collecting tank 1604 side, the vertical center line of the sewage collecting tank 1604 between the fixed plate frame 1601 and the inclined plate frame 1602 is symmetrical about the vertical center line of the sewage collecting tank 1604 so that two sets of the fixed plate frame 1601 and the inclined plate frame 1602 can be used simultaneously, the sewage is further filtered by the non-woven fabric filtering layer 1603 inside of the fixed plate frame 1601, and the inclined plate frame 1602 is inclined towards the sewage collecting tank 1604, smaller particulate impurities attached to the surfaces of the non-woven fabric filter layers 1603 at the positions of the fixed plate frame 1601 and the inclined plate frame 1602 are impacted to the position of the sewage collection tank 1604;

an intercepting net 17 is fixed at the joint of the tertiary connecting water pipe 14 and the aeration tank 10, an anti-blocking component 18 is installed on the outer side of the intercepting net 17, the anti-blocking component 18 comprises a limiting groove 1801, a decontamination scraper 1802, a slider 1803, a sliding groove 1804, a floating rod 1805 and a stamping plate 1806, the limiting groove 1801 is fixed on the inner wall of the aeration tank 10, a decontamination scraper 1802 is installed in the limiting groove 1801, the slider 1803 is fixed at two ends of the decontamination scraper 1802, the sliding groove 1804 is arranged on the outer side of the slider 1803, the floating rod 1805 is connected on the outer side above the decontamination scraper 1802, the stamping plate 1806 is installed in the middle of the inner side of the floating rod 1805, the inner side of the decontamination scraper 1802 is attached to the outer side of the intercepting net 17, the decontamination scraper 1802 forms a sliding structure with the sliding groove 1803 and 1804, the inner side of the decontamination scraper 1802 is attached to the outer side of the intercepting net 17, so that impurities possibly existing on the outer side of the intercepting net 17 can be scraped by the decontamination scraper 1802, the blocking of the intercepting net 17 is prevented, and the dirt removing scraper 1802 forms a sliding structure through the sliding block 1803 and the sliding groove 1804, so that the dirt removing scraper 1802 can move up and down in the limiting groove 1801 by utilizing the mutual matching between the sliding block 1803 and the sliding groove 1804.

To sum up, when the sewage treatment device capable of treating particulate matters by multi-stage classification and layering is used, firstly, sewage can be injected into the interior of the settling tank 1 through the water inlet pipe 2, so that the sewage is settled in the flocculating agent layer 3, then the sewage which is clarified at the upper part inside the water pipe 2 enters the treatment tank 501 of the grading treatment component 5 through the primary connecting water pipe 4, at this time, the sewage firstly settles again between the treatment tank 501 and the first partition 502, the sewage whose water level is higher than the height of the first partition 502 enters between the first partition 502 and the second partition 504, then the water flow will enter the next group of treatment boxes 501 under the action of the height difference, at this time, the water flow will impact the rotating shaft 506, so that the rotating shaft 506 drives the fixing frame 507 and the fishing net 508 to rotate, so as to salvage suspended matters in the sewage, and the impurities of the suspended matters are attached to the fishing net 508;

sewage sequentially passes through the two groups of grading treatment components 5 and then enters the first filtering chamber 6, then the flow distribution plate 707 with a conical structure distributes the sewage flow from the upper part of the middle part to the periphery, so that the sewage can be firstly contacted with the outer filter screen frame 701 and the water filter screen 706, meanwhile, a plurality of round holes in the flow distribution plate 707 are convenient for uniform infiltration of partial water flow, as the cross sections of the outer filter screen frame 701 and the inner filter screen frame 702 are of downward arc-shaped bent structures, the sewage is convenient for leading the water flow to drive larger particulate impurities to be concentrated to the position of the middle sewage collecting frame 704, and as the bottom and the outer side of the sewage collecting frame 704 are both provided with the water filter screen 706, the water in the sewage collecting frame 704 can infiltrate downwards through the water filter screen 706;

then the sewage after primary filtration and impurity removal enters an aeration tank 10 through a secondary connecting water pipe 8 under the action of a water pump 9, firstly, peculiar smell and particle impurities in the sewage are adsorbed by an activated carbon filter layer 11, then aeration is carried out by an aeration pipe 13, aerobic microorganisms in a biological filter layer 12 decompose organic impurities in the sewage through biological action, then the purified sewage enters a second filter chamber 15 through a tertiary connecting water pipe 14, in the process, the sewage passes through an interception net 17, and part of residual impurities possibly cause the blockage of the interception net 17, at the moment, a decontamination scraper 1802 moves upwards under the action of a floating rod 1805 with buoyancy, and downward water flow impacts an arc-shaped punching plate 1806 to move downwards, so that the decontamination scraper 1802 can move upwards and downwards in a limiting groove 1801 under the mutual matching between a sliding block 1803 and a sliding groove 1804, therefore, impurities possibly existing on the outer side surface of the interception net 17 can be conveniently scraped by the dirt removing scraper 1802, and the interception net 17 is prevented from being blocked;

after the sewage enters the second filtering chamber 15, the sewage flushed by the three connecting water pipes 14 on the two sides is filtered by the second filtering impurity removing component 16, the two symmetrical fixed plate frames 1601 and the inclined plate frames 1602 are used simultaneously, the non-woven fabric filtering layer 1603 on the inner side of the fixed plate frames 1601 and the inclined plate frames 1602 is used for further filtering the sewage, under the impact action of water flow, smaller particulate impurities attached to the surfaces of the non-woven fabric filter layers 1603 of the fixing plate frames 1601 and the inclined plate frames 1602 can be intensively impacted to the position of the sewage collection tank 1604, the bottom and the outer side of the sewage collection tank 1604 are both provided with filter membrane layers with mesh-shaped structures, so that water molecules can pass through, and the second filter chamber 15 can be periodically opened to clean impurities in the sewage collection tank 1604, because the dirt collecting frame 704 and the frame plate 705 form a detachable structure with the filter screen inner frame 702 through bolts, therefore, the dirt collecting frame 704 can be detached periodically to clean impurities in the dirt collecting frame, so that the whole using process of the sewage treatment device capable of treating particulate matters by multi-stage classification and layering is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a sewage treatment plant of granule can be handled to multistage hierarchical layering, includes setting tank (1), first filter chamber (6) and second filter chamber (15), its characterized in that: the improved sewage treatment device is characterized in that a water inlet pipe (2) is connected above the settling tank (1), a flocculating agent layer (3) is arranged on the inner wall of the settling tank (1), a primary connecting water pipe (4) is fixedly connected to the two sides of the settling tank (1), a grading treatment assembly (5) is arranged below the primary connecting water pipe (4), the inner side of the grading treatment assembly (5) comprises a treatment tank (501), a first partition plate (502), a fixing rod (503), a second partition plate (504), a shaft sleeve (505), a rotating shaft (506), a fixing frame (507) and a fishing net (508), the first partition plate (502) is arranged on one side of the interior of the treatment tank (501), the fixing rod (503) is arranged on the other side of the interior of the treatment tank (501), the second partition plate (504) is fixed to the two sides of the fixing rod (503), the shaft sleeve (505) is arranged below the fixing rod (503), the rotating shaft (506) is arranged on the two sides of the shaft sleeve (505), and the outer side of the rotating shaft (506) is provided with a fixed frame (507), the inner wall of the fixed frame (507) is provided with a fishing net (508), the first filtering chamber (6) is arranged below the grading treatment component (5), the inside of the first filtering chamber (6) is provided with a first filtering and impurity removing component (7), the bottom of the first filtering chamber (6) is fixedly connected with a secondary connecting water pipe (8), one side of the secondary connecting water pipe (8) is provided with a water pump (9), the tail end of the secondary connecting water pipe (8) is provided with an aeration tank (10), the inner upper part of the aeration tank (10) is provided with an activated carbon filtering layer (11), the lower part of the activated carbon filtering layer (11) is provided with a biological filtering layer (12), the lower part of the biological filtering layer (12) is provided with an aeration pipe (13), the outer lower part of the aeration tank (10) is connected with a tertiary connecting water pipe (14), the second filtering chamber (15) is arranged at the bottom of the third connecting water pipe (14), a second filtering and impurity removing component (16) is arranged inside the second filtering chamber (15), an intercepting net (17) is fixed at the joint of the third connecting water pipe (14) and the aeration tank (10), and an anti-blocking component (18) is arranged on the outer side of the intercepting net (17); the fixed frame (507) and the fishing net (508) form a rotating structure through the rotating shaft (506), and the fixed frame (507) and the fishing net (508) are uniformly distributed on the outer side of the rotating shaft (506) in an annular radial shape; the first filtering and impurity removing component (7) comprises a filter screen outer frame (701), a filter screen inner frame (702), a filter screen (703), a dirt collecting frame (704), a frame plate (705), a water filtering screen (706) and a flow dividing plate (707), wherein the filter screen outer frame (701) is installed inside the first filtering chamber (6), the filter screen inner frame (702) is arranged inside the filter screen outer frame (701), the filter screen (703) is fixed between the filter screen outer frame (701) and the filter screen inner frame (702), the dirt collecting frame (704) is installed inside the filter screen inner frame (702), the frame plate (705) is fixed on the outer side above the dirt collecting frame (704), the frame plate (705) is connected with the filter screen (702) through bolts, and the flow dividing plate (707) is installed above the inside of the first filtering chamber (6); the filter screen outer frame (701) and the filter screen inner frame (702) are of an integrated structure, the cross sections of the filter screen outer frame (701) and the filter screen inner frame (702) are of downward arc-shaped bent structures, the symmetric center of the dirt collecting frame (704) is overlapped with the symmetric center of the filter screen inner frame (702), and the dirt collecting frame (704) and the frame plate (705) form a detachable structure with the filter screen inner frame (702) through bolts; the flow distribution plate (707) is in a conical structure, and the symmetric center of the flow distribution plate (707) is superposed with the symmetric center of the first filter chamber (6); the second filtering and impurity removing component (16) comprises a fixing plate frame (1601), an inclined plate frame (1602), a non-woven fabric filter layer (1603) and a sewage collecting tank (1604), the fixing plate frame (1601) is installed inside the second filtering chamber (15), the inclined plate frame (1602) is fixedly connected to the inner side of the fixing plate frame (1601), the non-woven fabric filter layer (1603) is arranged between the fixing plate frame (1601) and the inclined plate frame (1602), and the sewage collecting tank (1604) is installed below the inner side of the inclined plate frame (1602); the fixed plate frame (1601) and the inclined plate frame (1602) are symmetrical about a vertical central line of the sewage collection tank (1604), and the inclined plate frame (1602) is in an inclined structure towards one side of the sewage collection tank (1604); the anti-blocking component (18) comprises a limiting groove (1801), a decontamination scraper (1802), a sliding block (1803), a sliding groove (1804), a floating rod (1805) and a punching plate (1806), wherein the limiting groove (1801) is fixed on the inner wall of the aeration box (10), the decontamination scraper (1802) is installed in the limiting groove (1801), the sliding block (1803) is fixed at two ends of the decontamination scraper (1802), the sliding groove (1804) is arranged on the outer side of the sliding block (1803), the floating rod (1805) is connected to the outer side above the decontamination scraper (1802), and the punching plate (1806) is installed in the middle of the inner side of the floating rod (1805); the inner side surface of the decontamination scraper (1802) is attached to the outer side surface of the interception net (17), and the decontamination scraper (1802) forms a sliding structure with the sliding groove (1804) through the sliding block (1803).