1. The utility model provides an environmental protection sewage treatment plant, includes sewage treatment jar (1), its characterized in that: the water inlet pipe (2) and the water outlet pipe (3) are fixedly inserted into the top and the bottom of the outer wall of the sewage treatment tank (1) respectively, the water outlet pipe (4) is fixedly inserted into the left end of the bottom of the sewage treatment tank (1), the stirring device (5) is fixedly connected to the top of the sewage treatment tank (1), the cutting device (6) is fixedly connected to the top of the inside of the sewage treatment tank (1), and the filtering device (7) is fixedly connected to the middle of the inside of the sewage treatment tank (1); agitating unit (5) includes agitator motor (51), the bottom fixed connection of agitator motor (51) is in the left side at sewage treatment tank (1) top, the top of sewage treatment tank (1) is rotated and is connected with transmission shaft (52), the activity of the centre department at sewage treatment tank (1) top is pegged graft and is had puddler (53), be provided with a plurality of stirring branch (57) on the puddler, the gear at transmission shaft (52) both ends meshes with the gear at agitator motor (51) output and the gear at puddler (53) top respectively, the bottom of puddler (53) is rotated and is connected with fixed axle (54), wedge (55) have been cup jointed in the outer wall activity of fixed axle (54), the bottom fixedly connected with first telescopic link (56) of wedge (55), the bottom of first telescopic link (56) is run through the bottom of sewage treatment tank (1) and is extended to its below, the bottom of the first telescopic rod (56) is fixedly connected to a supporting plate at the bottom end of the sewage treatment tank (1);

the filtering device (7) comprises a ceramic filter plate (71), the edge of the top of the ceramic filter plate (71) is fixedly connected to the middle of the inner wall of the sewage treatment tank (1), the ceramic filter plate (71) is funnel-shaped, and a through hole is formed in the middle of the bottom of the ceramic filter plate (71);

a pressure sensor is arranged in the wedge-shaped block (55), and the pressure head end of the pressure sensor is arranged upwards and can abut against the through hole of the ceramic filter plate (71); and the discharge pipe (3) is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected with the pressure sensor.

2. The environmental protection sewage treatment device according to claim 1, wherein: the cutting device (6) comprises two second telescopic rods (61), the two second telescopic rods (61) are fixedly inserted into the front side and the rear side of the top of the sewage treatment tank (1) respectively, a ring seat (62) is fixedly connected to the bottom of the second telescopic rods (61), the inner edge of the ring seat (62) exceeds the maximum outer edge of the stirring rod (53), a reinforcing rod (63) and a blade (64) are fixedly connected to the upper end and the lower end of the inner wall of the ring seat (62) respectively, and one end of the reinforcing rod (63) far away from the ring seat (62) and one end of the blade (64) far away from the ring seat (62) are fixedly connected.

3. The environmental protection sewage treatment device according to claim 1, wherein: the middle of the inner wall of the sewage treatment tank (1) is fixedly connected with an inclined strut (72), one end of the inclined strut (72) is fixedly connected with a support ring (73), the inner wall of the support ring (73) is fixedly sleeved at the lower end of the outer wall of the ceramic filter plate (71), and the bottom end of the inner wall of the sewage treatment tank (1) is fixedly connected with an inclined filter plate (74).

4. The environmental protection sewage treatment device according to claim 1, wherein: being close to one of ceramic filter plate (71) be provided with brush (82) through connecting rod (81) on stirring branch (57), connecting rod (81) slope set up and with ceramic filter plate (71) are parallel, brush (82) set up connecting rod (81) orientation one side of ceramic filter plate (71).

5. The environmental protection sewage treatment device according to claim 1, wherein: the surface of the top of the wedge-shaped block (55) is provided with a sealing rubber layer, the top of the sealing rubber layer is movably inserted into a through hole in the filtering device (7), and a cavity penetrating out of the pressure sensor is formed in the sealing rubber layer.

6. The environmental protection sewage treatment device according to claim 2, wherein: the number of the reinforcing rods (63) and the number of the blades (64) are four, and the reinforcing rods (63) and the blades (64) are arranged on the inner wall of the ring seat (62) in a cross shape.

7. The environmental protection sewage treatment device according to claim 1, wherein: puddler (53) and puddle branch (57) are one end open-ended hollow structure, the well cavity of puddler (53) with the well cavity intercommunication of puddle branch (57), puddle branch (57) are provided with a plurality of fumaroles towards the top.

8. The use method of the environmental protection sewage treatment device according to claim 1, comprising the steps of:

s1: firstly, a stirring motor (51) is started to drive a stirring rod (53) to rotate through the power transmission of a gear and a transmission shaft (52), a first telescopic rod (56) is controlled to extend to jack a wedge-shaped block (55), when the numerical value of the pressure sensor exceeds the interference threshold value, the sealing rubber layer at the top of the wedge block (55) is lapped with the inner wall of the through hole at the bottom of the ceramic filter plate (71), at the moment, the water inlet pipe (2) is opened, the electromagnetic valve at the discharge pipe (3) is automatically closed, sewage is discharged into the sewage treatment tank (1), the sewage can be accumulated in the ceramic filter plate (71) because the water leakage speed of the ceramic filter plate (71) is much slower than the water inlet speed of the water inlet pipe (2), and the rotary stirring rod (53) can enable the strip-shaped garbage to be wound on the stirring rod (57) on the surface of the ceramic filter plate, and drives the water body to flow to form a vortex, and after stirring for a period of time, the stirring motor (51) is closed;

s2: after the stirring rod (53) stops rotating, the water inlet pipe (2) is closed, the flowing speed of the water body is slowed, the water body stops flowing finally, impurities in the water body can quickly form precipitates, the heavy impurities are on the bottom layer and the light top layer, the precipitated impurities form a natural filtering layer, sewage is preliminarily filtered, grease on the surface of the water is filtered out, the ceramic filtering plate (71) can filter the water and arrange the water at the bottom of the sewage treatment tank (1), the water flows through the inclined filtering plate (74) and is discharged through the water outlet pipe (4), and the water is filtered;

s3: the first telescopic rod (56) is controlled to contract, the top of the wedge block (55) is separated from the inner wall of a through hole at the bottom of the ceramic filter plate (71) to form a notch, the numerical value of the pressure sensor is reduced, the electromagnetic valve at the discharging pipe (3) is automatically opened, precipitated impurities fall to the top of the inclined filter plate (74) from the notch under the action of gravity and flow to the discharging pipe (3) from the notch, the inside of the sewage treatment tank (1) is discharged through the discharging pipe (3), meanwhile, the second telescopic rod (61) is controlled to extend to drive the ring seat (62) and the blade (64) to move downwards, and in the downward movement process of the blade (64), the strip-shaped garbage wound on the stirring support rod (57) can be cut to remove the strip-shaped garbage; simultaneously, external outside high-pressure air supply at the open end of puddler (53), high-pressure gas spouts through the fumarole on puddler branch (57), will hang down the banding impurity on puddler branch (57), rubbish and impurity are discharged the back, control first telescopic link (56) extension again and peg graft in the through-hole of ceramic filter plate (71) bottom, the above-mentioned action of circulation repetition, can carry out sewage treatment in succession, brush (82) that puddler branch (57) department set up can sweep away the residue that remains on ceramic filter plate (71) and raise and participate in this filtration last time filtering, can further prevent that the dirt from blockking up ceramic filter plate (71).

Background

Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters and a large number of pathogenic microorganisms. Organic matters existing in domestic sewage are extremely unstable and easily decomposed to generate offensive odor. Bacteria and pathogens propagate in large quantities by taking organic matters in domestic sewage as nutrition, and can cause epidemic of infectious diseases. Therefore, domestic sewage must be treated before being discharged.

The prior patent (publication number: CN108939686B) discloses an energy-saving and environment-friendly domestic sewage treatment device, which makes the rotating speeds of two separating mechanisms different through different transmission ratios, carries out classification treatment on sewage, removes insoluble impurities and further carries out filtration treatment on the sewage. In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: 1. the device has low efficiency of separating and removing impurities with different particle sizes; 2. the device is easy to have the problem of being blocked by fine particles during the use process; 3. the device can remove most of impurities by filtering for many times, so that the treatment cost is increased, and the economic benefit is low.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an environment-friendly sewage treatment device and a using method thereof, and solves the problems that the existing environment-friendly sewage treatment device has low removal efficiency on particle impurities with different sizes, is easy to be blocked by fine particle accumulation, can remove most of the impurities by filtering for many times, and has high treatment cost and low economic benefit.

In order to achieve the purpose, the invention is realized by the following technical scheme: an environment-friendly sewage treatment device comprises a sewage treatment tank, wherein a water inlet pipe and a water outlet pipe are fixedly inserted into the top and the bottom of the outer wall of the sewage treatment tank respectively, a water outlet pipe is fixedly inserted into the left end of the bottom of the sewage treatment tank, a stirring device is fixedly connected to the top of the sewage treatment tank, a cutting device is fixedly connected to the top of the inside of the sewage treatment tank, and a filtering device is fixedly connected to the middle of the inside of the sewage treatment tank; the stirring device comprises a stirring motor, the bottom of the stirring motor is fixedly connected to the left side of the top of the sewage treatment tank, the top of the sewage treatment tank is rotatably connected with a transmission shaft, a stirring rod is movably inserted in the middle of the top of the sewage treatment tank, a plurality of stirring support rods are arranged on the stirring rod, gears at two ends of the transmission shaft are respectively meshed with a gear at the output end of the stirring motor and a gear at the top of the stirring rod, the bottom of the stirring rod is rotatably connected with a fixed shaft, a wedge block is movably sleeved on the outer wall of the fixed shaft, a first telescopic rod is fixedly connected to the bottom of the wedge block, the bottom of the first telescopic rod penetrates through the bottom of the sewage treatment tank and extends to the lower side of the sewage treatment tank, and the bottom of the first telescopic rod is fixedly connected to a supporting plate at the bottom of the sewage treatment tank; the filtering device comprises a ceramic filtering plate, the edge of the top of the ceramic filtering plate is fixedly connected to the middle of the inner wall of the sewage treatment tank, the ceramic filtering plate is funnel-shaped, and a through hole is formed in the middle of the bottom of the ceramic filtering plate; a pressure sensor is arranged in the wedge-shaped block, and the pressure head end of the pressure sensor is arranged upwards and can abut against the through hole of the ceramic filter plate; and the discharge pipe (3) is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected with the pressure sensor.

Preferably, the cutting device comprises two second telescopic rods which are fixedly inserted into the front side and the rear side of the top of the sewage treatment tank respectively, the bottom of each second telescopic rod is fixedly connected with a ring seat, the inner edge of each ring seat exceeds the maximum outer edge of the stirring rod, the upper end and the lower end of the inner wall of each ring seat are fixedly connected with a reinforcing rod and a blade respectively, and one end of each reinforcing rod, which is far away from the corresponding ring seat, is fixedly connected with one end of each blade, which is far away from the corresponding ring seat.

Preferably, the middle of the inner wall of the sewage treatment tank is fixedly connected with an inclined strut, one end of the inclined strut is fixedly connected with a support ring, the inner wall of the support ring is fixedly sleeved at the lower end of the outer wall of the ceramic filter plate, and the bottom end of the inner wall of the sewage treatment tank is fixedly connected with an inclined filter plate.

Preferably, a brush is arranged on one of the stirring support rods close to the ceramic filter plate through a connecting rod, the connecting rod is obliquely arranged and is parallel to the ceramic filter plate, and the brush is arranged on one side, facing the ceramic filter plate, of the connecting rod.

Preferably, the surface of the top of the wedge-shaped block is provided with a sealing rubber layer, the top of the sealing rubber layer is movably inserted into the through hole in the filtering device, and the sealing rubber layer is provided with a cavity penetrating out of the pressure sensor.

Preferably, the number of the reinforcing rods and the number of the blades are four, and the reinforcing rods and the blades are arranged on the inner wall of the ring seat in a cross shape.

Preferably, the puddler reaches stirring branch is one end open-ended hollow structure, the well cavity of puddler with stirring branch's well cavity intercommunication, stirring branch is provided with a plurality of fumaroles towards the top.

The invention also discloses a use method of the environment-friendly sewage treatment device, which comprises the following steps:

s1: the method comprises the steps that firstly, a stirring motor is started to transmit power through a gear and a transmission shaft, a stirring rod is driven to rotate, a first telescopic rod is controlled to extend to jack up a wedge block, when the numerical value of a pressure sensor exceeds an interference threshold value, the sealing rubber layer at the top of the wedge block is lapped with the inner wall of a through hole at the bottom of a ceramic filter plate, a water inlet pipe is opened at the moment, an electromagnetic valve at a discharging pipe is automatically closed, sewage is discharged into a sewage treatment tank, the water leakage speed of the ceramic filter plate is much slower than the water inflow speed of the water inlet pipe, sewage can be accumulated inside the ceramic filter plate, the rotating stirring rod can enable strip-shaped garbage to be wound on a stirring support rod on the surface of the stirring rod, and drives a water body to flow to form a vortex, and after the stirring motor is stirred for a period of time, the stirring motor is closed.

S2: after the puddler stall, close the inlet tube, the speed that the water flows can slow down, stop at last to flow, the impurity of aquatic can form fast and deposit, the quality is great at the bottom, the light top layer of quality, the impurity of sediment forms the natural filtering layer of one deck, carry out prefilter to sewage, filter out the grease on water surface, and ceramic filter plate can filter out water, arrive the bottom of sewage treatment jar side by side, flow through oblique filter plate and discharge through the outlet pipe, water filters and accomplishes the back.

S3: the first telescopic rod is controlled to contract, the top of the wedge block is separated from the inner wall of the through hole at the bottom of the ceramic filter plate to form a notch, the numerical value of the pressure sensor is reduced, the electromagnetic valve at the discharging pipe is automatically opened, precipitated impurities can fall to the top of the inclined filter plate from the notch under the action of gravity and flow to the discharging pipe, the impurities are discharged out of the sewage treatment tank through the discharging pipe, meanwhile, the second telescopic rod is controlled to extend to drive the ring seat and the blade to move downwards, and the blade can cut and remove the strip-shaped garbage wound on the stirring support rod in the downward movement process; simultaneously, external outside high pressurized air source at the open end of puddler, high-pressure gas is through the fumarole blowout on the stirring branch, the banded impurity of hanging on the stirring branch blows down, rubbish and impurity are discharged the back, the extension of the first telescopic link of secondary control is pegged graft in the through-hole of ceramic filter plate bottom, the above-mentioned action of circulation repetition, can carry out sewage treatment in succession, the brush that stirring branch department set up can be with filtering last time and remain the residue on ceramic filter plate and sweep out and raise and participate in this filtration, can further prevent that the dirt from blockking up ceramic filter plate.

Advantageous effects

The invention provides an environment-friendly sewage treatment device and a using method thereof. Compared with the prior art, the method has the following beneficial effects:

(1) the environment-friendly sewage treatment device and the using method thereof wind and collect the strip-shaped garbage in the sewage through the stirring device, so that blockage is avoided, the stirring rod can stir the sewage on the ceramic filter plate to form a vortex, and after stirring is stopped, the water body flows to accelerate the layered precipitation of impurities, so that the sewage treatment efficiency is improved.

(2) The environment-friendly sewage treatment device and the use method thereof can enable the water to flow to form a vortex through the stirring mechanism, the fine particles are gathered together to the middle, and the flowing water drives the impurities to rotate together, so that the problem of blockage caused by the attachment of the impurities of the fine particles on the ceramic filter plate is avoided.

(3) According to the environment-friendly sewage treatment device and the using method thereof, water can be subjected to classified filtration through the filtering device and the sediments formed by layering, and the sediments inside the ceramic filter plate are used for filtering grease on the surface of the water body, so that the number of filter layers is reduced, the cost of sewage treatment is saved, and the economic benefit is improved.

(4) The residue that precipitates on ceramic filter plate in the process of filtering last time can be swept away and raised to participate in this filtration through the brush that sets up on stirring branch, can further prevent that the dirt from blockking up ceramic filter plate.

(5) The blade and the fumarole through setting up can be effectively with the banding rubbish of winding on stirring branch detach and finally discharge through oblique filter plate and discharging pipe in order to carry out the procedure and handle.

(6) The automatic control discharging pipe can be automatically controlled to be opened and closed through the arranged pressure sensor and the arranged electromagnetic valve, the control precision is high, and manual intervention can be reduced.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

fig. 3 is a top view of a structural cutting device of the present invention.

In the figure: 1. a sewage treatment tank; 2. a water inlet pipe; 3. a discharge pipe; 4. a water outlet pipe; 5. a stirring device; 51. a stirring motor; 52. a drive shaft; 53. a stirring rod; 54. a fixed shaft; 55. a wedge block; 56. a first telescopic rod; 57. stirring the supporting rod; 6. a cutting device; 61. a second telescopic rod; 62. a ring seat; 63. a reinforcing rod; 64. a blade; 7. a filtration device; 71. a ceramic filter plate; 72. a diagonal brace; 73. a support ring; 74. an inclined filter plate; 81. a connecting rod; 82. and a brush.

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.

Referring to fig. 1-3, an environmental protection sewage treatment device comprises a sewage treatment tank 1, a water inlet pipe 2 and a water outlet pipe 3 are respectively fixedly inserted into the top and the bottom of the outer wall of the sewage treatment tank 1, a water outlet pipe 4 is fixedly inserted into the left end of the bottom of the sewage treatment tank 1, a stirring device 5 is fixedly connected to the top of the sewage treatment tank 1, the stirring device 5 is used for winding and collecting the strip garbage in the sewage to avoid blockage, the water filtering speed of a ceramic filter plate 71 is smaller than the water inlet speed of the water inlet pipe 2, a stirring rod 53 can stir the sewage on the ceramic filter plate 71 to form a vortex, after the stirring is stopped, the water flow can accelerate the layered precipitation of impurities to improve the sewage treatment efficiency, fine particles are gathered to the middle, the flowing water drives the impurities to rotate together, the adhesion of the fine particles on the ceramic filter plate is avoided, the blockage problem is caused, a cutting device 6 is fixedly connected to the top inside the sewage treatment tank 1, cutting device 6 can be after agitating unit 5 stop work, cuts stirring branch 57 winding banded rubbish in surface, and the high-pressure gas that the fumarole spun from stirring branch 57 is gone into and finally followed from hollow puddler 53 to the deuterogamy, can further clear up the banded rubbish on stirring branch 57, and the banded rubbish that is blown down after the cutting is discharged from discharging pipe 3 along with the precipitate together, and the inside middle department fixedly connected with filter equipment 7 of sewage treatment jar 1.

According to the invention, the stirring device 5 comprises a stirring motor 51, the bottom of the stirring motor 51 is fixedly connected to the left side of the top of the sewage treatment tank 1, the top of the sewage treatment tank 1 is rotatably connected with a transmission shaft 52, a stirring rod 53 is movably inserted in the middle of the top of the sewage treatment tank 1, a plurality of stirring support rods 57 are arranged on the stirring rod 53, wherein the stirring rod 53 and the stirring support rods 57 are both hollow structures with one ends open, the hollow cavity of the stirring rod 53 is communicated with the hollow cavity of the stirring support rods 57, and a plurality of air injection holes are formed in the upward direction of the stirring support rods 57. The gears at the two ends of the transmission shaft 52 are respectively meshed with the gear at the output end of the stirring motor 51 and the gear at the top of the stirring rod 53, the bottom of the stirring rod 53 is rotatably connected with a fixed shaft 54, the outer wall of the fixed shaft 54 is movably sleeved with a wedge-shaped block 55, a pressure sensor is arranged in the wedge-shaped block 55, and the pressure head end of the pressure sensor is arranged upwards and can be abutted against the through hole of the ceramic filter plate 71; the discharging pipe 3 is provided with an electromagnetic valve which is electrically connected with the pressure sensor.

The first telescopic link 56 of bottom fixedly connected with of wedge 55, the bottom of first telescopic link 56 runs through the bottom of sewage treatment jar 1 and extends to its below, and the bottom fixed connection of first telescopic link 56 is on the layer board of sewage treatment jar 1 bottom.

According to the invention, the cutting device 6 comprises two second telescopic rods 61, the two second telescopic rods 61 are respectively fixedly inserted at the front side and the rear side of the top of the sewage treatment tank 1, the bottom of the second telescopic rods 61 is fixedly connected with a ring seat 62, the inner edge of the ring seat 62 exceeds the maximum outer edge of the stirring rod 53, the arrangement is convenient for the ring seat 62 to move up and down so as to cut the strip-shaped garbage wound on the stirring support rod 57, the upper end and the lower end of the inner wall of the ring seat 62 are respectively and fixedly connected with a reinforcing rod 63 and a blade 64, and one end of the reinforcing rod 63, which is far away from the ring seat 62, is fixedly connected with one end of the blade 64, which is far away from the ring seat 62.

According to the invention, the filtering device 7 comprises the ceramic filter plate 71, the edge of the top of the ceramic filter plate 71 is fixedly connected to the middle of the inner wall of the sewage treatment tank 1, and the sediment in the ceramic filter plate 71 is used for filtering grease on the surface of a water body, so that the number of filter layers is reduced, the cost of sewage treatment is saved, and the economic benefit is improved. Be provided with brush 82 through connecting rod 81 on a stirring branch 57 near ceramic filter plate 71, connecting rod 81 slope sets up and is parallel with ceramic filter plate 71, and brush 82 sets up at connecting rod 81 orientation one side of ceramic filter plate 71, brush 82 can sweep away the residue that remains on ceramic filter plate 71 with filtering last time and raise and participate in this time and filter, can further prevent that the dirt from blockking up ceramic filter plate 71. The length of the brush is preferably a length that can slightly extend into the filter holes of the ceramic filter plate 71, and those skilled in the art can select a suitable length according to actual needs, which will not be described herein.

In the invention, the surface of the top of the wedge-shaped block 55 is provided with a sealing rubber layer, the sealing rubber layer is provided with a cavity penetrating through the pressure sensor, and the top of the sealing rubber layer is movably inserted into a through hole in the filtering device 7.

In the present invention, the number of the reinforcing rods 63 and the number of the blades 64 are four, and the reinforcing rods 63 and the blades 64 are arranged on the inner wall of the ring base 62 in a cross shape.

In the present invention, the ceramic filter plate 71 is shaped like a funnel, and a through hole is provided in the middle of the bottom of the ceramic filter plate 71.

The use method of the environment-friendly sewage treatment device comprises the following steps:

s1: firstly, the stirring motor 51 is started to drive the stirring rod 53 to rotate through power transmission of the gear and the transmission shaft 52, the first telescopic rod 56 is controlled to extend to jack the wedge-shaped block 55, when the numerical value of the pressure sensor exceeds the interference threshold value, the sealing rubber layer at the top of the wedge-shaped block 55 is lapped with the inner wall of the through hole at the bottom of the ceramic filter plate 71, the water inlet pipe 2 is opened at the moment, the electromagnetic valve at the discharge pipe 3 is automatically closed, sewage is discharged into the sewage treatment tank 1, the water inlet speed of the ceramic filter plate 71 is much slower than that of the water inlet pipe 2, the sewage can be accumulated in the ceramic filter plate 71, the rotating stirring rod 53 can enable strip-shaped garbage to be wound on the stirring support rod 57 on the surface of the stirring rod, the water is driven to flow to form a vortex, and after a period of stirring, the stirring motor 51 is closed.

S2: behind puddler 53 stall, close inlet tube 2, the speed that the water flows can slow down, stop at last to flow, impurity in the aquatic can form the sediment fast, the quality is great at the bottom, the light top layer of quality, the impurity of sediment forms the natural filtering layer of one deck, carry out prefilter to sewage, filter out the grease on water surface, and ceramic filter plate 71 can filter out water, arrive the bottom of sewage treatment jar 1 side by side, flow oblique filter plate 74 and discharge through outlet pipe 4, water filters the back of accomplishing.

S3: the first telescopic rod 56 is controlled to contract, the top of the wedge-shaped block 55 is separated from the inner wall of the through hole at the bottom of the ceramic filter plate 71 to form a notch, the numerical value of the pressure sensor is reduced, the electromagnetic valve at the discharging pipe 3 is automatically opened, the precipitated impurities fall to the top of the inclined filter plate 74 from the notch under the action of gravity and flow to the discharging pipe 3, the impurities are discharged out of the sewage treatment tank 1 through the discharging pipe 3, meanwhile, the second telescopic rod 61 is controlled to extend to drive the ring seat 62 and the blade 64 to move downwards, and the blade 64 cuts the strip-shaped garbage wound on the stirring support rod 57 in the downward movement process to remove the strip-shaped garbage; simultaneously, external high-pressure air supply at the open end of puddler 53, high-pressure gas spouts through the fumarole on stirring branch 57, the banding impurity that will hang on stirring branch 57 blows down, rubbish and impurity are discharged the back, the extension of the first telescopic link of secondary control 56 is pegged graft in the through-hole of ceramic filter plate 71 bottom, the above-mentioned action of circulation repetition, can carry out sewage treatment in succession, the brush 82 that stirring branch 57 department set up can sweep away the residue that remains on ceramic filter plate 71 and raise up and participate in this filtration last time with filtering, can further prevent that the dirt from blockking up ceramic filter plate 71.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.