CN215855675U - Rural domestic sewage nitrogen and phosphorus removal treatment tank - Google Patents

Abstract

The utility model provides a rural domestic sewage denitrification and dephosphorization treatment tank. The rural domestic sewage denitrification and dephosphorization treatment tank comprises a main body; a water inlet pipe; a reflux mechanism; the filtering mechanism comprises a first gauze, a first fixing ring, a baffle, a second fixing ring and a second gauze, the funnel-shaped first gauze is mounted at the top end of the backflow mechanism, and the bottom end of the first gauze is fixedly connected with the first fixing ring; the bottom surface of the second fixing ring is provided with the second gauze, and the bottom end of the second gauze is fixedly connected with the second fixing ring; the baffle is arranged in the backflow mechanism, and the bottom surface of the baffle abuts against the top surface of the second fixing ring; an air intake mechanism; and the top end of the air injection mechanism is connected with the bottom end of the air inlet mechanism. The rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model has the advantages that the activated sludge is quickly separated, and the activated sludge is quickly introduced into the aeration tank again.

Description

Rural domestic sewage nitrogen and phosphorus removal treatment tank

Technical Field

The utility model relates to the technical field of rural sewage treatment, in particular to a rural domestic sewage denitrification and dephosphorization treatment tank.

Background

The activated sludge process is an aerobic biological treatment method for sewage, and the activated sludge process and a derivative improvement process thereof are the most widely used methods for treating urban sewage. It can remove soluble and colloidal biochemical organic substances, suspended solids and other substances adsorbed by activated sludge from sewage, and can remove a part of phosphorus and nitrogen, and is a general name of various methods for biologically treating microorganisms suspended in water by wastewater.

After sewage is treated by an activated sludge method, the sewage and activated sludge are discharged from an aeration tank together, the activated sludge and the sewage are mixed together, the activated sludge needs to be separated from the treated sewage, and the activated sludge is introduced into the aeration tank again.

Therefore, it is necessary to provide a new rural domestic sewage denitrification and dephosphorization treatment tank to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rural domestic sewage nitrogen and phosphorus removal treatment tank which can quickly separate activated sludge and quickly introduce the activated sludge into an aeration tank again.

In order to solve the technical problems, the rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model comprises a main body; the water inlet pipe is arranged at one end of the main body; the backflow mechanisms are fixed on the side wall of the main body at equal intervals; the filtering mechanism is arranged inside the backflow mechanism and comprises first gauze, a first fixing ring, a baffle, a second fixing ring and second gauze, the funnel-shaped first gauze is arranged at the top end of the backflow mechanism, and the bottom end of the first gauze is fixedly connected with the first fixing ring; the bottom surface of the second fixing ring is provided with the second gauze, and the bottom end of the second gauze is fixedly connected with the second fixing ring; the baffle is arranged in the backflow mechanism, and the bottom surface of the baffle abuts against the top surface of the second fixing ring; the air inlet mechanism is fixed on the top surface of the main body; the top end of the air injection mechanism is connected with the bottom end of the air inlet mechanism, and the air injection mechanism is installed in the main body and the backflow mechanism.

Preferably, the main part includes shell, first baffle and second baffle, the top installation of shell the inlet tube, the top surface equidistance installation cross-section of shell is trapezoidal first baffle, the inside bottom surface equidistance installation cross-section of shell is trapezoidal the second baffle.

Preferably, the bottom end of the shell is provided with drain pipes at equal intervals, and the centers of the drain pipes are aligned with the center of the first partition plate.

Preferably, the mechanism of admitting air includes intake pipe and connecting pipe, the top surface symmetry installation of shell the intake pipe, the bottom equidistance installation of intake pipe the connecting pipe, just the connecting pipe install in the inside wall of shell.

Preferably, the backflow mechanism comprises a backflow pipe and a drain pipe, the top end of the backflow pipe is mounted on the side wall of the shell, the bottom end of the backflow pipe is connected with the bottom end of the shell, and the side wall of the backflow pipe is mounted on the drain pipe.

Preferably, the jet-propelled mechanism includes jet-propelled pipe, accelerating tube and shower nozzle, the bottom of connecting pipe is installed perpendicularly jet-propelled pipe, the lateral wall symmetry slope installation of jet-propelled pipe is a plurality of the shower nozzle, the bottom installation of jet-propelled pipe accelerating tube, lateral wall are curved accelerating tube is located the inside of back flow.

Preferably, the top internally mounted of back flow pipe first gauze with the baffle, the top surface slope the side-mounting of baffle the drain pipe, just the minimum internal diameter of first gauze is less than the maximum internal diameter of second gauze.

Compared with the prior art, the rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model has the following beneficial effects:

the utility model provides a rural domestic sewage denitrification and dephosphorization treatment tank, when treated sewage enters the inside of a backflow mechanism, the sewage and activated sludge enter the inside of first gauze together, the sewage and the activated sludge slide on the side wall of the first gauze, the activated sludge is gathered at the bottom end of the first gauze, part of the treated sewage leaks out of the side wall of the first gauze and falls on the top surface of a baffle, the activated sludge and the sewage are in contact with a first fixing ring, the first fixing ring blocks the activated sludge and the sewage, the activated sludge penetrates through the first fixing ring and enters the inside of second gauze, the sewage is blocked by the first fixing ring, part of the sewage penetrates through the top surface of the first gauze and falls on the baffle, the sewage is discharged from the baffle, and most of the sewage and the activated sludge enter the inside of second gauze, the solid fixed ring of second is contradicted the top surface of baffle, the second fixed ring is fixed the second gauze avoids the second gauze is followed the roll-off in the baffle makes most sewage and activated sludge pass through the second gauze falls into the bottom of backward flow mechanism, just first gauze with the second gauze is the infundibulate, through first gauze with the sewage and the activated sludge of second gauze get into fast with higher speed inside the bottom of backward flow mechanism, just the inside gas slope of jet-propelled mechanism lets in the inside of backward flow mechanism makes activated sludge pass through fast the backward flow mechanism gets into the inside of main part makes things convenient for reuse.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of a rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model;

FIG. 2 is a schematic view of the internal structure of the main body shown in FIG. 1;

FIG. 3 is an enlarged view of the structure at A shown in FIG. 2;

fig. 4 is a top view of the housing structure shown in fig. 1.

Reference numbers in the figures: 1. the main part, 11, the shell, 12, first baffle, 13, the second baffle, 2, the inlet tube, 3, mechanism of admitting air, 31, the intake pipe, 32, the connecting pipe, 4, the return mechanism, 41, the back flow, 42, the drain pipe, 5, the jet-propelled mechanism, 51, the jet-propelled pipe, 52, the accelerating tube, 53, the shower nozzle, 6, the filter mechanism, 61, first gauze, 62, first solid fixed ring, 63, the baffle, 64, the solid fixed ring of second, 65, the second gauze, 7, the blow off pipe.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic structural diagram of a preferred embodiment of a rural domestic sewage denitrification and dephosphorization treating tank according to the present invention; FIG. 2 is a schematic view of the internal structure of the main body shown in FIG. 1; FIG. 3 is an enlarged view of the structure at A shown in FIG. 2; fig. 4 is a top view of the housing structure shown in fig. 1. Rural domestic sewage nitrogen and phosphorus removal treatment tank includes: a main body 1; the water inlet pipe 2 is arranged at one end of the main body 1; the backflow mechanisms 4 are fixed on the side wall of the main body 1 at equal intervals; the filtering mechanism 6 is installed inside the backflow mechanism 4, the filtering mechanism 6 comprises a first gauze 61, a first fixing ring 62, a baffle 63, a second fixing ring 64 and a second gauze 65, the funnel-shaped first gauze 61 is installed at the top end of the backflow mechanism 4, and the bottom end of the first gauze 61 is fixedly connected with the first fixing ring 62; the second gauze 65 is mounted on the bottom surface of the second fixing ring 62, and the bottom end of the second gauze 65 is fixedly connected with the second fixing ring 64; the baffle 63 is arranged in the backflow mechanism 4, and the bottom surface of the baffle 63 abuts against the top surface of the second fixing ring 64; the air inlet mechanism 3 is fixed on the top surface of the main body 1; and the top end of the air injection mechanism 5 is connected with the bottom end of the air inlet mechanism 3, and the air injection mechanism 5 is arranged in the main body 1 and the reflux mechanism 4.

Specifically, main part 1 includes shell 11, first baffle 12 and second baffle 13, the top installation of shell 11 inlet tube 2, the top surface equidistance installation cross-section of shell 11 is trapezoidal first baffle 12, the inside bottom surface equidistance installation cross-section of shell 11 is trapezoidal second baffle 13, for convenient sewage when the inside of shell 11 flows, first baffle 12 with second baffle 13 blocks sewage, makes sewage follow the below of first baffle 12 flows through, and sewage is in the top of second baffle 13 flows through, makes sewage be in zigzag motion about the inside of shell 11 makes active sludge effectively get rid of the nitrogen and the phosphorus of sewage.

Specifically, the bottom of the shell 11 is equidistantly provided with the sewage pipes 7, the centers of the sewage pipes 7 are aligned with the center of the first partition plate 12, and the sewage pipes 7 are opened conveniently to clean sludge precipitated in the shell 11.

Specifically, mechanism 3 admits air includes intake pipe 31 and connecting pipe 32, the top surface symmetry installation of shell 11 intake pipe 31, the bottom equidistance installation of intake pipe 31 connecting pipe 32, just connecting pipe 32 install in the inside wall of shell 11, for convenient the fan with intake pipe 31 connects, makes the air get into in proper order intake pipe 31 with the inside of connecting pipe 32.

Specifically, the backflow mechanism 4 includes a backflow pipe 41 and a drain pipe 42, the top end of the backflow pipe 41 is mounted on the side wall of the housing 11, the bottom end of the backflow pipe 41 is connected to the bottom end of the housing 11, and the side wall of the backflow pipe 41 is mounted on the drain pipe 42, so that activated sludge flows into the interior of the housing 11 again through the backflow pipe 41, and treated sewage is discharged from the interior of the drain pipe 42.

Specifically, the gas injection mechanism 5 includes a gas injection pipe 51, an acceleration pipe 52 and a nozzle 53, the gas injection pipe 51 is vertically installed at the bottom end of the connection pipe 32, the plurality of nozzles 52 are symmetrically installed on the side wall of the gas injection pipe 51 in an inclined manner, the acceleration pipe 52 is installed at the bottom end of the gas injection pipe 51, the acceleration pipe 52 whose side wall is arc-shaped is located inside the return pipe 41, so that in order to facilitate the gas entering the inside of the gas injection pipe 51, the gas is obliquely sprayed from the inside of the nozzle 53 to the bottom surface of the inside of the housing 11, the gas drives the activated sludge to turn up and down inside the sewage, the activated sludge and the sewage are uniformly mixed, the gas enters the inside of the return pipe 41 through the acceleration pipe 52, the gas moves inside the return pipe 41, and the activated sludge is pushed to rapidly move inside the return pipe 41, the activated sludge is rapidly re-entered into the interior of the housing 11.

Specifically, the top internally mounted of back flow pipe 41 first gauze 61 with baffle 63, the top surface slope the side-mounting of baffle 63 drain pipe 42, just the minimum internal diameter of first gauze 61 is less than the maximum internal diameter of second gauze 65 for convenient activated sludge gets into fast first gauze 61 with the inside of second gauze 65, and make sewage after the processing of part fall to the top surface of baffle 63 makes sewage follow the inside discharge of drain pipe 42, and runs through first gauze 61 with the sewage and the activated sludge of second gauze 65 get into fast the inside of back flow pipe 41.

The working principle of the rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model is as follows: will inlet tube 3 to the inside of shell 11 is filled with sewage, again to the inside of shell 11 adds appropriate amount of activated sludge, with the fan with intake pipe 31 connects, makes the air get into in proper order intake pipe 31 with the inside of connecting pipe 32, gaseous entering the inside of jet-propelled pipe 51 makes gaseous follow the inside downward sloping blowout of shower nozzle 53, gaseous slope spout the inside bottom surface of shell 11 makes gaseous drive activated sludge turn about the inside of sewage, makes activated sludge and sewage homogeneous mixing. Work as behind the inside sewage treatment of shell 11, open inlet tube 2 with back flow 41 makes sewage get into inside the one end of shell 11, sewage and activated sludge after the simultaneous processing follow the inside discharge of the other end of shell 11 gets into the inside of back flow 41, sewage and activated sludge get into together the inside of first gauze 65, sewage and activated sludge are in the lateral wall of first gauze 65 slides, and activated sludge is in the bottom of first gauze 65 assembles, and sewage after the partial processing is followed the lateral wall of first gauze 65 spills to fall to the ground the top surface of baffle 63, and activated sludge and sewage with first solid fixed ring 62 contacts, first solid fixed ring 62 blocks activated sludge and sewage, and activated sludge runs through first solid fixed ring 62 gets into the inside of second gauze 65, sewage by first solid fixed ring 62 blocks, make partial sewage permeate through first gauze 61 falls ground the top surface of baffle makes sewage follow discharge in the baffle 63, sewage is in the top surface of baffle 63 slides and follows discharge in the drain pipe 42 makes most sewage and activated sludge get into the inside of second gauze 65, the solid fixed ring 64 of second contradicts the top surface of baffle 63, the solid fixed ring 64 of second is fixed second gauze 65 avoids second gauze 65 follows roll-off in the baffle 63 makes most sewage and activated sludge pass through second gauze 65 falls into the bottom of back flow 41, just first gauze 61 with second gauze 65 is the infundibulate, through first gauze 61 with the sewage and the activated sludge of second gauze 65 pass through with higher speed quick entering inside the bottom of back flow 41, part the bottom installation of jet-propelled pipe 51 humidification pipe 52, making gas enter the inside of the return pipe 41 through the accelerating pipe 52, the gas moves inside the return pipe 41, pushing activated sludge to move rapidly inside the return pipe 41, making activated sludge rapidly re-enter the inside of the housing 11, the activated sludge entering the housing 11 contacts the sewage entering the housing 11 through the inlet pipe 2 again, making the activated sludge contact the sewage uniformly, the side walls of the inlet pipe 2 and the outlet pipe 42 are provided with valves, the amount of water entering the housing 11 from the inlet pipe 2 is equal to the amount of sewage discharged from the inside of the outlet pipe 42, thus making the sewage inside the main body 1 full, the first partition plate 12 and the second partition plate 13 block the sewage during the movement of the inside of the housing 11, making the sewage flow below the first partition plate 12, sewage flows above the second partition plate 13, so that the sewage moves up and down in the shell 11 in a zigzag manner, nitrogen and phosphorus in the sewage are effectively removed by activated sludge, in the treatment process, the treated sewage and the activated sludge enter the shell 11 again, and a small amount of sewage is discharged from the inside of the drain pipe 42, so that the sewage is continuously treated in the shell 11, and the sewage treatment efficiency is improved.

Compared with the prior art, the rural domestic sewage denitrification and dephosphorization treatment tank provided by the utility model has the following beneficial effects:

the utility model provides a rural domestic sewage denitrification and dephosphorization treatment tank, when treated sewage enters the inside of a backflow mechanism 4, the sewage and activated sludge enter the inside of a first gauze 61 together, the sewage and the activated sludge slide on the side wall of the first gauze 61, the activated sludge is gathered at the bottom end of the first gauze 61, part of the treated sewage leaks out of the side wall of the first gauze 61 and falls to the top surface of a landing baffle 63, the activated sludge and the sewage are in contact with a first fixing ring 62, the first fixing ring 62 blocks the activated sludge and the sewage, the activated sludge penetrates through the first fixing ring 62 and enters the inside of a second gauze 65, the sewage is blocked by the first fixing ring 62, part of the sewage penetrates through the top surface of the first gauze 65 and falls to the baffle 63, the sewage is discharged from the baffle 63, and the majority of the sewage and the activated sludge enter the inside of the second gauze 65, the solid fixed ring 64 of second is contradicted the top surface of baffle 63, the solid fixed ring 64 of second is fixed second gauze 65 avoids second gauze 65 is followed roll-off in the baffle 63 makes most sewage and activated sludge pass through the second gauze 65 falls into the bottom of return flow mechanism 4, just first gauze 61 with second gauze 65 is the infundibulate, through first gauze 61 with the sewage and the activated sludge of second gauze 65 get into fast through accelerating inside the bottom of return flow mechanism 4, just the inside gas slope of jet-propelled mechanism 5 lets in the inside of return flow mechanism 4 makes activated sludge pass through fast return flow mechanism 4 gets into the inside of main part 1 makes things convenient for reuse.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. The utility model provides a rural domestic sewage nitrogen and phosphorus removal treatment pond which characterized in that includes:

a main body;

the water inlet pipe is arranged at one end of the main body;

the backflow mechanisms are fixed on the side wall of the main body at equal intervals;

the filtering mechanism is arranged inside the backflow mechanism and comprises first gauze, a first fixing ring, a baffle, a second fixing ring and second gauze, the funnel-shaped first gauze is arranged at the top end of the backflow mechanism, and the bottom end of the first gauze is fixedly connected with the first fixing ring; the bottom surface of the second fixing ring is provided with the second gauze, and the bottom end of the second gauze is fixedly connected with the second fixing ring; the baffle is arranged in the backflow mechanism, and the bottom surface of the baffle abuts against the top surface of the second fixing ring;

the air inlet mechanism is fixed on the top surface of the main body;

the top end of the air injection mechanism is connected with the bottom end of the air inlet mechanism, and the air injection mechanism is installed in the main body and the backflow mechanism.

2. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 1, wherein the main body comprises a housing, a first partition plate and a second partition plate, the water inlet pipe is installed at the top end of the housing, the first partition plate with a trapezoidal cross section is installed on the top surface of the housing at equal intervals, and the second partition plate with a trapezoidal cross section is installed on the inner bottom surface of the housing at equal intervals.

3. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 2, wherein the bottom end of the housing is provided with drain pipes at equal intervals, and the centers of the drain pipes are aligned with the center of the first partition plate.

4. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 2, wherein the air inlet mechanism comprises an air inlet pipe and a connecting pipe, the air inlet pipe is symmetrically installed on the top surface of the housing, the connecting pipe is installed on the bottom end of the air inlet pipe at equal intervals, and the connecting pipe is installed on the inner side wall of the housing.

5. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 4, wherein the backflow mechanism comprises a backflow pipe and a drain pipe, the top end of the backflow pipe is mounted on the side wall of the housing, the bottom end of the backflow pipe is connected with the bottom end of the housing, and the side wall of the backflow pipe is mounted on the drain pipe.

6. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 5, wherein the gas injection mechanism comprises a gas injection pipe, an acceleration pipe and nozzles, the gas injection pipe is vertically installed at the bottom end of the connecting pipe, a plurality of nozzles are symmetrically and obliquely installed on the side wall of the gas injection pipe, the acceleration pipe is installed at the bottom end of the gas injection pipe, and the acceleration pipe with an arc-shaped side wall is located inside the return pipe.

7. The rural domestic sewage nitrogen and phosphorus removal treatment tank of claim 5, wherein the first gauze and the baffle are installed inside the top end of the return pipe, the drain pipe is installed on the side surface of the baffle with the inclined top surface, and the minimum inner diameter of the first gauze is smaller than the maximum inner diameter of the second gauze.

Images