1. The utility model provides a purifier is used in municipal sewage treatment convenient to sample, includes box (1), sampling plate (3), acid-base concentration detector (7), reaction cylinder (26) and circular filter frame (27), its characterized in that: the upper surface mounting of box (1) has sample motor (2), the output shaft lower extreme of sample motor (2) is fixed with sampling plate (3), the below of sample motor (2) is fixed with fender liquid board (5), the upper surface mounting of box (1) has acid-base concentration detector (7), the inlet of acid-base concentration detector (7) is connected with and connects hopper (8), the upper surface of box (1) is run through by waste pipe (9), the one end that waste pipe (9) and box (1) are connected is provided with waste water flow valve (10), additive flow valve (11) are installed to one side of waste water flow valve (10), the side surface of box (1) is run through by the lower extreme liquid outlet of acidizing fluid pipe (12) and lye pipe (13), the one end of acidizing fluid pipe (12) and lye pipe (13) is connected with additive flow valve (11), the upper surface of box (1) is run through by shower (14), water pump (15) are installed to one side of box (1), the lower extreme of shower (14) is connected with the liquid outlet of water pump (15), the side surface of box (1) is provided with aqua storage tank (16), the inlet of water pump (15) is located the inside of aqua storage tank (16), aqua storage tank (16) link up with the lower extreme side surface of box (1) mutually, one side that box (1) lower extreme does not link up with aqua storage tank (16) is connected with drain pipe (19) that are used for exporting the purified water, rotating electrical machines (20) are installed to the inside top surface of box (1), rotating block (21) is fixed with to rotating electrical machines (20) output shaft lower extreme, the bottom inside of box (1) is fixed with bearing board (23), the lower surface mounting of bearing board (23) has conversion motor (25), the upper end of an output shaft of the conversion motor (25) penetrates through the upper surface of the bearing plate (23), the upper end of the output shaft of the conversion motor (25) is connected with a reaction cylinder (26), 4 circular filter frames (27) are uniformly arranged inside the reaction cylinder (26), a sliding seat (28) is fixed at the bottom end of the reaction cylinder (26), and a rotating transmission rod (30) is connected to the middle of the upper surface of each circular filter frame (27).

2. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: liquid storage hole (4) have been seted up to the lower surface of sampling plate (3), the surface that keeps off liquid board (5) is run through by weeping hole (6), the distance in liquid storage hole (4) centre of a circle and sampling plate (3) centre of a circle equals the distance in weeping hole (6) centre of a circle and sampling plate (3) centre of a circle, weeping hole (6) are located and connect hopper (8) directly over.

3. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: the upper end ejection of compact pipe of waste pipe (9) runs through and keeps off liquid board (5), the upper surface that keeps off liquid board (5) is laminated with the lower surface of sampling plate (3) mutually, the distance of the upper end ejection of compact pipe centre of a circle of waste pipe (9) and sampling plate (3) centre of a circle equals the distance of stock solution hole (4) centre of a circle and sampling plate (3) centre of a circle.

4. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: the inside of aqua storage tank (16) is fixed with filter plate (17), the below of filter plate (17) is provided with flocculation board (18), flocculation board (18) and aqua storage tank (16) are sliding connection, the side surface of aqua storage tank (16) is run through to the one end of flocculation board (18).

5. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: the lower end of the rotating block (21) is connected with a sliding slide rod (22), a spring is connected between the slide rod (22) and the rotating block (21), and the lower end of the slide rod (22) is connected with the upper end of the transmission rod (30) in a clamping manner.

6. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: one side of the lower surface of the supporting plate (23) close to the liquid outlet pipe (19) is designed in a hollow mode, and an annular magnet (24) is installed on one side of the lower surface of the supporting plate (23) close to the water storage tank (16) in an embedded mode.

7. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: the circular filter frame (27) is in sliding connection with the sliding seat (28), a spring is connected between the lower end face of the circular filter frame (27) and the sliding seat (28), 2 displacement magnets (29) are symmetrically arranged on the lower surface of the circular filter frame (27), and the magnetic poles of the displacement magnets (29) are the same as the magnetic poles of the annular magnets (24).

8. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: and a scraping rod (31) is fixed on the side surface of the transmission rod (30), and the lower surface of the scraping rod (31) is attached to the upper surface of the circular filter frame (27).

9. The municipal sewage treatment purification device convenient for sampling according to claim 1, wherein: the upper end of the transmission rod (30) is designed to be a quadrangular frustum, the side surface of the quadrangular frustum at the upper end of the transmission rod (30) is isosceles trapezoid, and the upper surface area of the quadrangular frustum at the upper end of the transmission rod (30) is larger than the lower surface area of the quadrangular frustum.

Background

Sewage treatment is a technology of concentrating sewage and purifying and recycling, and sewage treatment technology is widely applied to heavily polluting industries such as buildings, agriculture and chemical industry, and municipal sewage treatment technology is simpler than heavily polluting the sewage treatment technology of the industry, and is mainly used for deodorizing sewage and neutralizing acid and alkali so that the sewage can reach the standard of domestic water after being filtered, but the existing municipal sewage treatment and purification device has some defects, such as:

1. for example, in the anti-blocking municipal sewage treatment device disclosed by the publication No. CN201910070547.1, sundries in sewage are crushed by matching the rotating rod with the crushing blade, but in the actual sewage treatment process, the sundries in the sewage are often cleaned before the sewage reaches a sewage treatment plant through a catching mode, and the difficulty in catching the sundries is increased by the sundries crushing mode, so that the sundries are softened and decomposed in the sewage, and troubles are caused for the subsequent treatment of the sewage;

2. like publication number "CN 201910070547.1 a prevent municipal sewage treatment plant of jam, use through guide plate and active carbon filter screen cooperation and adsorb the peculiar smell in the sewage, such mode can a large amount of consumption active carbon, and the active carbon needs regularly to be changed, otherwise can make the filtration mode inefficacy, it is higher to cause filterable cost, the operation is more complicated, simultaneously municipal sewage's constitution is comparatively complicated, the pH of sewage is the diverse, use same sewage additive can't play the purifying effect good to sewage.

Aiming at the problems, innovative design is urgently needed on the basis of the original urban sewage treatment and purification device.

Disclosure of Invention

The invention aims to provide a purification device for urban sewage treatment, which is convenient for sampling and aims to solve the problems that the purification mode provided by the background technology is not targeted and the impurity filtering mode is not good.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a purifier is used in municipal sewage treatment convenient to sample, includes box, sampling plate, acid-base concentration detector, reaction cylinder and circular filter frame, the last surface mounting of box has the sample motor, the output shaft lower extreme of sample motor is fixed with the sampling plate, the below of sample motor is fixed with the fender liquid board, the last surface mounting of box has the acid-base concentration detector, the inlet of acid-base concentration detector is connected with and connects the hopper, the upper surface of box is run through by the waste pipe, the one end that the waste pipe is connected with the box is provided with the waste water flow valve, the additive flow valve is installed to one side of waste water flow valve, the side surface of box is run through by the lower extreme liquid outlet of acidizing fluid pipe and lye pipe, the one end of acidizing fluid pipe and lye pipe is connected with the additive flow valve, the upper surface of box is run through by the shower, the water, the lower end of the spray pipe is connected with a liquid outlet of the water pump, a water storage tank is arranged on the side surface of the box body, the liquid inlet of the water pump is positioned in the water storage tank which is communicated with the side surface of the lower end of the box body, one side of the lower end of the box body which is not communicated with the water storage tank is connected with a liquid outlet pipe for outputting purified water, a rotating motor is arranged on the top surface of the interior of the box body, a rotating block is fixed at the lower end of an output shaft of the rotating motor, a bearing plate is fixed in the bottom end of the box body, a conversion motor is arranged on the lower surface of the bearing plate, the upper end of the output shaft of the conversion motor penetrates through the upper surface of the bearing plate, the upper end of the output shaft of the conversion motor is connected with a reaction cylinder, the reactor is characterized in that 4 circular filter frames are uniformly arranged in the reaction cylinder, a sliding seat is fixed at the bottom end of the reaction cylinder, and a rotating transmission rod is connected to the middle of the upper surface of each circular filter frame.

Preferably, the lower surface of the sampling plate is provided with a liquid storage hole, the outer surface of the liquid baffle plate is penetrated by the liquid leakage hole, the distance between the circle center of the liquid storage hole and the circle center of the sampling plate is equal to the distance between the circle center of the liquid leakage hole and the circle center of the sampling plate, and the liquid leakage hole is positioned right above the material receiving hopper.

Adopt above-mentioned technical scheme for the stock solution hole can leak waste water to connect the hopper in through the weeping hole under the drive of sampling plate.

Preferably, the upper end discharge circular pipe of the waste water pipe penetrates through the liquid baffle, the upper surface of the liquid baffle is attached to the lower surface of the sampling plate, and the distance between the circle center of the upper end discharge circular pipe of the waste water pipe and the circle center of the sampling plate is equal to the distance between the circle center of the liquid storage hole and the circle center of the sampling plate.

Adopt above-mentioned technical scheme for when the stock solution hole rotated to the waste pipe directly over, the waste pipe can pour into waste water into the stock solution hole under hydraulic effect, and the stock solution hole can make waste water can not spill under the blockking of fender liquid board after changeing away.

Preferably, the inside of aqua storage tank is fixed with the filter plate, the below of filter plate is provided with the flocculation board, the flocculation board is sliding connection with the aqua storage tank, the side surface of aqua storage tank is run through to the one end of flocculation board.

Adopt above-mentioned technical scheme for the water that contains impurity can flow back to the aqua storage tank in, the filter plate filters the magazine, and impurity deposits on the flocculation board so that take out the clearance with the flocculation board.

Preferably, the lower end of the rotating block is connected with a sliding slide rod, a spring is connected between the slide rod and the rotating block, and the lower end of the slide rod is connected with the upper end of the transmission rod in a clamping manner.

By adopting the technical scheme, the rotating block can drive the transmission rod to rotate through the clamping of the sliding rod and the transmission rod.

Preferably, one side of the lower surface of the supporting plate, which is close to the liquid outlet pipe, is designed to be hollow, and one side of the lower surface of the supporting plate, which is close to the water storage tank, is embedded with an annular magnet.

By adopting the technical scheme, the circular filter frame can discharge filtered water when rotating to the hollow part of the bearing plate, and impurities can be washed below the circular filter frame when the circular filter frame rotates to the position right above the annular magnet.

Preferably, the circular filter frame is in sliding connection with the sliding seat, a spring is connected between the lower end face of the circular filter frame and the sliding seat, 2 displacement magnets are symmetrically arranged on the lower surface of the circular filter frame, and the magnetic poles of the displacement magnets are the same as the magnetic poles of the annular magnets.

By adopting the technical scheme, the displacement magnet drives the circular filter frame to slide upwards under the repulsive action of the same magnetic pole of the annular magnet, so that the side surface of the circular filter frame is separated from the reaction cylinder, and impurities can flow out.

Preferably, a scraping rod is fixed on the side surface of the transmission rod, and the lower surface of the scraping rod is attached to the upper surface of the circular filter frame.

By adopting the technical scheme, impurities on the upper surface of the circular filter frame can be scraped by the scraping rod when the transmission rod rotates.

Preferably, the upper end of the transmission rod is designed to be a quadrangular frustum pyramid, the side surface of the quadrangular frustum pyramid at the upper end of the transmission rod is isosceles trapezoid, and the upper surface area of the quadrangular frustum pyramid at the upper end of the transmission rod is larger than the lower surface area of the quadrangular frustum pyramid.

By adopting the technical scheme, the side surface of the transmission rod is an inclined surface at the center of the inclined frustum pyramid, so that the transmission rod can slide upwards through the inclined surface when extruding the sliding rod, and the design of the frustum pyramid enables the sliding rod to stably drive the transmission rod to rotate.

Compared with the prior art, the invention has the beneficial effects that: this purifier is used in municipal sewage treatment convenient to sample:

1. the device is provided with an acid-base concentration detector, and acid-base property of the sewage is rapidly detected by the acid-base concentration detector, so that acidic or alkaline purifying agents are determined to be injected into the sewage, the purifying agents can be put in more pertinence, a good purifying effect is achieved, and the high efficiency of sewage treatment is ensured;

2. the sampling plate is arranged, sewage is injected into the liquid storage hole by utilizing the pressure of sewage injection, the liquid storage hole is driven by the sampling plate to rotate to the position of the liquid leakage hole, and a sewage sample in the liquid storage hole is leaked into the material receiving hopper through the liquid leakage hole and is detected by the acid-base concentration detector, so that the rapid sampling and detection of the sewage sample are completed;

3. the reaction cylinder is arranged, the four chambers of the reaction cylinder are utilized to simultaneously carry out the processes of reaction, filtration, impurity scraping and impurity cleaning on the sewage, the reaction cylinder rotates ceaselessly, the waiting time for the reaction of a medicament and the sewage and the impurity cleaning is saved, and the sewage treatment efficiency is greatly improved;

4. the water storage tank is arranged, clear water containing impurities is separated from the impurities by the water storage tank, the impurities are deposited below the filter plate, clean water above the filter plate is sprayed on the upper surface of the circular filter frame through the spray pipe under the action of the water pump to clean the impurities, and the cleaned water flows back to the lower part of the filter plate through the lower end of the box body, so that flocs in sewage are washed and collected on the premise of saving water.

Drawings

FIG. 1 is a schematic overall front cross-sectional structural view of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the connection between the slide bar and the transmission rod according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 5 is a schematic top cross-sectional view of the present invention;

FIG. 6 is a schematic view of the overall top view of the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 5 according to the present invention.

In the figure: 1. a box body; 2. a sampling motor; 3. a sampling plate; 4. a liquid storage hole; 5. a liquid baffle; 6. a weep hole; 7. an acid-base concentration detector; 8. a receiving hopper; 9. a waste pipe; 10. a waste water flow valve; 11. an additive flow valve; 12. an acid liquor pipe; 13. an alkali liquor tube; 14. a shower pipe; 15. a water pump; 16. a water storage tank; 17. filtering the plate; 18. a flocculation plate; 19. a liquid outlet pipe; 20. a rotating electric machine; 21. rotating the block; 22. a slide bar; 23. a support plate; 24. a ring magnet; 25. a switching motor; 26. a reaction cylinder; 27. a circular filter frame; 28. a sliding seat; 29. a displacement magnet; 30. a transmission rod; 31. a scraping rod.

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. 1-7, the present invention provides a technical solution: a conveniently sampled purification device for urban sewage treatment comprises a box body 1, a sampling motor 2, a sampling plate 3, a liquid storage hole 4, a liquid baffle plate 5, a liquid leakage hole 6, an acid-base concentration detector 7, a receiving hopper 8, a waste water pipe 9, a waste water flow valve 10, an additive flow valve 11, an acid liquid pipe 12, an alkali liquid pipe 13, a spray pipe 14, a water pump 15, a water storage tank 16, a filter plate 17, a flocculation plate 18, a liquid outlet pipe 19, a rotating motor 20, a rotating block 21, a sliding rod 22, a bearing plate 23, an annular magnet 24, a conversion motor 25, a reaction cylinder 26, a circular filter frame 27, a sliding seat 28, a displacement magnet 29, a transmission rod 30 and a scraping rod 31, wherein the sampling motor 2 is installed on the upper surface of the box body 1, the sampling plate 3 is fixed at the lower end of an output shaft of the sampling motor 2, the liquid storage hole 4 is formed in the lower surface of the sampling plate 3, the outer surface of the liquid baffle plate 5 is penetrated by the liquid leakage hole 6, the distance between the center 4 and the center of the sampling plate 3 is equal to the distance between the center of the liquid leakage hole 6 and the center of the sampling plate 3, the weeping hole 6 is located and connects directly over the hopper 8, and the sampling plate 3 drives stock solution hole 4 and rotates directly over to waste pipe 9, and waste water in the waste pipe 9 gets into stock solution hole 4 under the pressure effect, and the sampling plate 3 drives stock solution hole 4 and changes from waste pipe 9, accomplishes the sample to waste water in the waste pipe 9.

As shown in fig. 1, 2 and 6, a liquid baffle plate 5 is fixed below a sampling motor 2, an acid-base concentration detector 7 is mounted on the upper surface of a box body 1, a liquid inlet of the acid-base concentration detector 7 is connected with a material receiving hopper 8, the upper surface of the box body 1 is penetrated by a waste water pipe 9, an upper end discharge circular pipe of the waste water pipe 9 penetrates through the liquid baffle plate 5, the upper surface of the liquid baffle plate 5 is attached to the lower surface of a sampling plate 3, the distance between the circle center of the upper end discharge circular pipe of the waste water pipe 9 and the circle center of the sampling plate 3 is equal to the distance between the circle center of a liquid storage hole 4 and the circle center of the sampling plate 3, and after the sampling plate 3 drives the liquid storage hole 4 to rotate away from the position right above the waste water pipe 9, the waste water in the liquid storage hole 4 can not flow out under the blocking of the liquid baffle plate 5, when the liquid storage hole 4 rotates to the position of the liquid leakage hole 6 along with the rotation of the sampling plate 3, liquid in the liquid storage hole 4 leaks into the receiving hopper 8 through the liquid leakage hole 6, and the acid-base concentration detector 7 detects waste water in the receiving hopper 8.

As shown in fig. 1, 2, 5 and 6, one end of the waste water pipe 9 connected with the box body 1 is provided with a waste water flow valve 10, one side of the waste water flow valve 10 is provided with an additive flow valve 11, the side surface of the box body 1 is penetrated through by lower end liquid outlets of an acid liquid pipe 12 and an alkali liquid pipe 13, one ends of the acid liquid pipe 12 and the alkali liquid pipe 13 are connected with the additive flow valve 11, the upper surface of the box body 1 is penetrated through by a spray pipe 14, one side of the box body 1 is provided with a water pump 15, the lower end of the spray pipe 14 is connected with a liquid outlet of the water pump 15, the side surface of the box body 1 is provided with a water storage tank 16, a liquid inlet of the water pump 15 is positioned inside the water storage tank 16, the water storage tank 16 is communicated with the side surface of the lower end of the box body 1, one side of the lower end of the box body 1, which is not communicated with the water storage tank 16, a liquid outlet pipe 19 for outputting purified water is connected with the water, a filter plate 17 is fixed inside the water storage tank 16, a flocculation plate 18 is arranged below the filter plate 17, the flocculation plate 18 is in sliding connection with the water storage tank 16, one end of the flocculation plate 18 penetrates through the side surface of the water storage tank 16, the water pump 15 pumps water in the water storage tank 16 into the water storage tank 16 to spray and clean flocculent impurities on the circular filter frame 27, the water containing the flocculent impurities flows back to the lower part of the filter plate 17 through the lower end of the circular filter frame 27, the flocculent impurities are blocked by the filter plate 17, and the filtered water is continuously pumped away by the water pump 15 for recycling.

As shown in fig. 1-7, a rotating motor 20 is installed on the top surface of the interior of the box 1, a rotating block 21 is fixed at the lower end of an output shaft of the rotating motor 20, a sliding rod 22 is connected to the lower end of the rotating block 21, a spring is connected between the sliding rod 22 and the rotating block 21, the lower end of the sliding rod 22 is connected with the upper end of a transmission rod 30 in a clamping manner, the transmission rod 30 extrudes the sliding rod 22 along with the rotation of the reaction cylinder 26, the sliding rod 22 slides upwards under the action of a frustum slope at the upper end of the transmission rod 30 until the transmission rod 30 rotates to a position right below the sliding rod 22 and is clamped with the sliding rod 22, when the transmission rod 30 is started, the rotating motor 20 drives the sliding rod 22 to rotate through the rotating block 21, the sliding rod 22 drives the transmission rod 30 and the scraping rod 31 to rotate, and the scraping rod 31 scrapes off impurities filtered from the upper surface of the circular filter frame 27.

As shown in fig. 1-7, a supporting plate 23 is fixed inside the bottom end of the box 1, a conversion motor 25 is installed on the lower surface of the supporting plate 23, the upper end of the output shaft of the conversion motor 25 penetrates through the upper surface of the supporting plate 23, a reaction cylinder 26 is connected to the upper end of the output shaft of the conversion motor 25, 4 circular filter frames 27 are uniformly arranged inside the reaction cylinder 26, a sliding seat 28 is fixed at the bottom end of the reaction cylinder 26, one side of the lower surface of the supporting plate 23, which is close to the liquid outlet pipe 19, is hollowed out, an annular magnet 24 is embedded in one side of the lower surface of the supporting plate 23, which is close to the water storage tank 16, the circular filter frames 27 are in sliding connection with the sliding seat 28, a spring is connected between the lower end surface of the circular filter frames 27 and the sliding seat 28, 2 displacement magnets 29 are symmetrically arranged on the lower surface of the circular filter frames 27, the magnetic poles of the displacement magnets 29 are the same as the magnetic poles of, the water after reaction in the reaction cylinder 26 is filtered by the circular filter frame 27 and discharged through the liquid outlet pipe 19, while impurities attached to the upper surface of the circular filter frame 27 continuously rotate along with the circular filter frame 27, when the circular filter frame 27 rotates to a position right below the rotary motor 20, the rotary motor 20 drives the transmission rod 30 to rotate through the rotary block 21 and the sliding rod 22, the transmission rod 30 scrapes the impurities on the circular filter frame 27 through the scraping rod 31, then the circular filter frame 27 continuously rotates to a position right below the reaction cylinder 26 along with the reaction cylinder 26, at the moment, the displacement magnet 29 drives the circular filter frame 27 to slide upwards under the repelling action of the same magnetic pole of the annular magnet 24, meanwhile, the spray pipe 14 sprays water to flush the impurities, so that the impurities flow into the water storage tank 16 from a gap between the circular filter frame 27 and the side surface of the reaction cylinder 26, the cleaning of the circular filter frame 27 is completed, and finally the circular filter frame 27 rotates to a position right below the waste water pipe 9, receiving the injection of the waste water, the lower surface of the reaction cylinder 26 is closed by the support plate 23 so that the water does not flow out.

As shown in fig. 1 and 3, a rotary transmission rod 30 is connected to the center of the upper surface of the circular filter frame 27, a scraping rod 31 is fixed on the side surface of the transmission rod 30, the lower surface of the scraping rod 31 is attached to the upper surface of the circular filter frame 27, the upper end of the transmission rod 30 is designed as a quadrangular frustum, the side surface of the quadrangular frustum at the upper end of the transmission rod 30 is isosceles trapezoid, the upper surface area of the quadrangular frustum at the upper end of the transmission rod 30 is larger than the lower surface area of the quadrangular frustum, the transmission rod 30 can extrude the sliding rod 22 to slide upwards through the inclined surface of the side surface when the transmission rod 30 rotates to the sliding rod 22 through the design of the arris at the upper end of the transmission rod 30, when the transmission rod 30 is positioned right below the sliding rod 22, the sliding rod 22 interacts downwards under the action of the spring and the gravity and is clamped with the transmission rod 30, so that the rotating motor 20 can rotate the transmission rod 30 by the rotating block 21 and the sliding rod 22, and the transmission rod 30 scrapes off impurities on the circular filter frame 27 by the scraping rod 31.

The working principle is as follows: when the purification device for urban sewage treatment convenient for sampling is used, firstly, the wastewater flow valve 10 controls the wastewater pipe 9 to inject a certain amount of wastewater into one cavity in the reaction cylinder 26, the sampling plate 3 rotates under the drive of the sampling motor 2 and samples the wastewater through the liquid storage hole 4, the acid-base concentration detector 7 detects the wastewater, the acid-base concentration detector 7 controls the additive flow valve 11 to inject a certain amount of acid additive or alkaline additive into the reaction cylinder 26 through the acid liquid pipe 12 or the alkaline liquid pipe 13, then the conversion motor 25 drives the reaction cylinder 26 to rotate, and the reaction cylinder 26 realizes the discharge of filtered wastewater, the scraping of impurities on the circular filter frame 27 and the cleaning of the circular filter frame 27 sequentially through the change of the relative position with the bearing plate 23 in the rotating process, thereby achieving the purpose of uninterruptedly and efficiently sampling and purifying wastewater.

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.