CN219950753U

CN219950753U - Sewage treatment system

Info

Publication number: CN219950753U
Application number: CN202321111829.XU
Authority: CN
Inventors: 都广武; 夏志勇; 陈元; 林祥斌; 何臣; 刘开希; 舒亮
Original assignee: Hubei Haihui Chemical Technology Co ltd
Current assignee: Hubei Haihui Chemical Technology Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-11-03
Anticipated expiration: 2033-05-05

Abstract

The utility model relates to a sewage treatment system, which comprises a denitrification tank, a first aerobic tank, a mud-water separation tank and a second aerobic tank which are sequentially communicated, wherein a mud-water separation device is arranged in the mud-water separation tank; the mud-water separation device comprises a separation box, a centrifugal cylinder and two filter pressing assemblies, wherein the separation box is provided with a containing cavity, and is provided with a mud inlet, a mud outlet and a water outlet which are communicated with the containing cavity; the centrifugal cylinder is rotatably arranged in the accommodating cavity along the edge, the cylinder wall of the centrifugal cylinder is provided with a plurality of centrifugal holes in a penetrating way, and the mud inlet and the mud outlet are communicated with the centrifugal cylinder; the two filter-pressing components are arranged oppositely, the filter-pressing components comprise filter-pressing plates, the filter-pressing plates are movably arranged along the vertical direction, so that the two filter-pressing plates are close to each other or are far away from each other in the vertical direction, and when the two filter-pressing plates are close to each other, the filter-pressing plates are used for extruding mud and filtering out water. The utility model improves the separation efficiency of the mud and water and accelerates the whole sewage treatment process.

Description

Sewage treatment system

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment system.

Background

With the increasing expansion of urban population and the continuous development of industry and agriculture, water environment pollution accidents frequently occur, the health and even life of people and livestock are seriously endangered, and the recycling of sewage is receiving more and more attention. In sewage treatment, a mud-water separator is usually used.

Patent CN 215876388U discloses a mud-water separator, comprising a separating tank; the positive and negative motor I is installed at the separator tank top, and the inside upper and lower both sides of separator tank are provided with clamp plate and drainage board respectively, and all runs through in the middle of clamp plate and the drainage board inside and be fixed with first swivel nut, and the separator tank is inside to be provided with vertical double-end screw rod, and vertical double-end screw rod top runs through out the separator tank top and with positive and negative motor I's power end fixed connection, and vertical double-end screw rod runs through two first swivel nut and rather than threaded connection.

However, above-mentioned prior art, through setting up clamp plate and the mutual extrusion of drainage board from top to bottom and making the moisture in the muddy water filter out from the drainage board, only the drainage board of downside just can filter out the moisture of mud during the concrete use for the muddy water can only slowly filter out the moisture from last to down, can't carry out mud-water separation fast, and separation efficiency is lower.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a sewage treatment system for solving the technical problems that in the prior art, sludge-water separation cannot be performed rapidly, and the separation efficiency is low.

The utility model provides a sewage treatment system which comprises a denitrification tank, a first aerobic tank, a mud-water separation tank and a second aerobic tank which are sequentially communicated, wherein a mud-water separation device is arranged in the mud-water separation tank;

the mud-water separation device comprises:

the separating box is provided with a containing cavity, the separating box is provided with a mud inlet, a mud outlet and a water outlet which are communicated with the containing cavity, and the water outlet is arranged at the bottom of the separating box;

the centrifugal barrel is rotatably arranged in the accommodating cavity along the axis in the vertical direction, a plurality of centrifugal holes are formed in the barrel wall of the centrifugal barrel in a penetrating mode, the centrifugal holes are distributed at intervals along the circumferential direction of the centrifugal barrel, and the mud inlet and the mud outlet are communicated with the centrifugal barrel; the method comprises the steps of,

the two filter-pressing components are oppositely arranged along the vertical direction, each filter-pressing component comprises a filter-pressing plate, the filter-pressing plates are movably arranged along the vertical direction, so that the two filter-pressing plates are mutually close to or mutually far away from each other in the vertical direction, and when the two filter-pressing plates are mutually close to each other, the filter-pressing plates are used for extruding mud and filtering out water.

Optionally, the sewage treatment system further comprises an intermediate tank, wherein the intermediate tank is communicated with the mud-water separation tank, and water separated in the mud-water separation tank at least partially enters the intermediate tank.

Optionally, the filter pressing subassembly includes first drive assembly, first drive assembly includes adaptor and pneumatic cylinder, the adaptor along vertical direction axis rotation install in the filter pressing board, the pneumatic cylinder install in the separator box, the hydraulic stem of pneumatic cylinder with the adaptor is connected.

Optionally, the filter-pressing plate includes clamp plate and drainage board, the clamp plate with the hydraulic stem is connected, the clamp plate is the fretwork setting, the drainage board is located the clamp plate is towards another one side of filter-pressing plate.

Optionally, the pressing plate and the water filtering plate are detachably connected.

Optionally, the mud-water separation device includes the second drive assembly, the second drive assembly includes the ring gear, driving gear and driving motor, the ring gear install in the periphery of centrifugal section of thick bamboo, the driving gear along vertical direction axis rotation install in the separator box, the driving gear with the ring gear meshes mutually, driving motor's main shaft with driving gear connects.

Optionally, an inlet is formed in the upper end of the centrifugal barrel, an outlet is formed in the lower end of the centrifugal barrel, the inlet corresponds to the mud inlet, and the outlet corresponds to the mud outlet.

Optionally, hold the chamber and include from last first chamber section, second chamber section, third chamber section and the fourth chamber section that connects gradually down, first chamber section with third chamber section with centrifuge bowl looks adaptation makes the section of thick bamboo wall of centrifuge bowl with first chamber section with the chamber wall butt of third chamber section, second chamber section and fourth chamber section are greater than the sectional area of centrifuge bowl in the horizontal direction, wherein, advance the mud mouth with first chamber section is linked together, go out the mud mouth with third chamber section is linked together, the delivery port with fourth chamber section is linked together.

Optionally, a connecting channel for communicating the second cavity section and the fourth cavity section is arranged on the cavity wall of the third cavity section.

Optionally, valves are arranged at the mud inlet, the mud outlet and the water outlet.

Compared with the prior art, the sewage treatment system provided by the utility model has the advantages that sewage sequentially passes through the denitrification tank, the first aerobic tank, the sludge-water separation tank and the second aerobic tank to finish primary purification of the sewage, the sewage firstly enters the first aerobic tank and then enters the sludge-water separation tank and the second aerobic tank, aerobic heterotrophic bacteria, denitrifying bacteria and nitrifying bacteria are all in an anoxic and aerobic alternate environment, so that the advantages of different bacteria can be fully exerted under different conditions, the mixed bacteria are alternately in anoxic and aerobic states and the conditions of high and low concentration of organic matters, the sedimentation performance of the sludge is improved, the expansion of the sludge is controlled, in the process of separating the sludge from the sludge, the sludge is firstly injected into the accommodating cavity from the sludge inlet and enters the centrifugal cylinder, then the two filter pressing plates are driven to move towards the direction close to each other, the centrifugal cylinder rotates, the upper filter pressing plates filter the sludge through the centrifugal holes under the action of rotation of the centrifugal cylinder, the lower filter pressing plates directly enter the accommodating cavity through the centrifugal force under the action of the centrifugal cylinder, and the water filtering plates under the action of the two filter pressing plates are also arranged under the action of the centrifugal cylinder, and the water separation efficiency is improved simultaneously due to the fact that the two filter pressing plates are arranged under the action of the centrifugal cylinder.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and its details set forth in the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic perspective view of an embodiment of a mud-water separator according to the present utility model;

FIG. 2 is a schematic front view of the mud-water separator of FIG. 1;

FIG. 3 is a front cross-sectional view of the mud-water separation apparatus of FIG. 1;

FIG. 4 is a top cross-sectional view of the mud-water separation apparatus of FIG. 1;

FIG. 5 is a schematic perspective view of the separator housing of FIG. 1;

FIG. 6 is a cross-sectional view of the separator housing body of FIG. 5;

FIG. 7 is a schematic perspective view of the filter press plate of FIG. 1;

FIG. 8 is a schematic perspective view of the centrifuge bowl of FIG. 1;

fig. 9 is a flow chart of the sewage treatment system provided by the utility model.

Reference numerals illustrate:

1-separator tank, 11-pedestal, 12-separator tank body, 121-holding chamber, 1211-first chamber section, 1212-second chamber section, 1213-third chamber section, 1214-fourth chamber section, 122-mud inlet, 123-mud outlet, 124-water outlet, 2-centrifuge bowl, 21-centrifuge bowl, 22-inlet, 23-outlet, 3-filter press assembly, 31-filter press plate, 311-press plate, 312-water filter plate, 32-first drive assembly, 321-adapter, 322-hydraulic cylinder, 4-second drive assembly, 41-ring gear, 42-drive gear, 43-drive motor.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 9, the sewage treatment system comprises a denitrification tank, a first aerobic tank, a mud-water separation tank and a second aerobic tank which are sequentially communicated, wherein a mud-water separation device is arranged in the mud-water separation tank; the mud-water separation device comprises a separation box 1, a centrifugal cylinder 2 and two filter pressing assemblies 3, wherein the separation box 1 is provided with a containing cavity 121, the separation box 1 is provided with a mud inlet 122, a mud outlet 123 and a water outlet 124 which are communicated with the containing cavity 121, and the water outlet 124 is arranged at the bottom of the separation box 1; the centrifugal cylinder 2 is rotatably mounted in the accommodating cavity 121 along a vertical axis, a plurality of centrifugal holes 21 are formed in the cylinder wall of the centrifugal cylinder 2 in a penetrating manner, the plurality of centrifugal holes 21 are distributed at intervals along the circumferential direction of the centrifugal cylinder 2, and the mud inlet 122 and the mud outlet 123 are both communicated with the centrifugal cylinder 2; two filter-pressing subassembly 3 sets up relatively along vertical direction, every filter-pressing subassembly 3 includes filter-pressing board 31, filter-pressing board 31 with centrifuge tube 2 looks adaptation, filter-pressing board 31 sets up along vertical direction activity to make two filter-pressing boards 31 be close to each other or keep away from each other in vertical direction, in order to when two filter-pressing board 31 are close to each other, filter-pressing board 31 is used for extruding mud and filters out moisture.

According to the sewage treatment system provided by the utility model, sewage sequentially passes through the denitrification tank, the first aerobic tank, the mud-water separation tank and the second aerobic tank to finish primary purification of the sewage, the sewage firstly enters the first aerobic tank and then enters the mud-water separation tank and the second aerobic tank, so that aerobic heterotrophic bacteria, denitrifying bacteria and nitrifying bacteria are all in an anoxic and aerobic alternate environment, the advantages of different bacteria can be fully exerted under different conditions, the mixed bacteria are alternately in anoxic and aerobic states and conditions with high and low organic matter concentration, the sedimentation performance of the sludge is improved, the expansion of the sludge is controlled, in the mud-water separation process, mud water is firstly injected into the accommodating cavity 121 from the mud inlet 122 and enters the centrifugal cylinder 2, then the two filter pressing plates 31 are driven to move towards directions close to each other, the mud-water is extruded, meanwhile, the centrifugal cylinder 2 rotates, the filtered water of the upper filter pressing plates 31 enters the accommodating cavity 121 under the action of the rotating centrifugal cylinder 2, the filter pressing plates 31 directly enter the filter pressing plates 31 under the action of the centrifugal cylinder 2 under the action of the gravity of the centrifugal cylinder 2, and the two filter pressing plates are simultaneously discharged under the action of the centrifugal cylinder 2, and the water separation efficiency of the two filter pressing plates 31 are simultaneously is improved.

Further, referring to fig. 2, the separation tank 1 includes a base 11 and a separation tank body 12, the separation tank body 12 is mounted on the base 11 along a vertical direction, the accommodating cavity 121 is disposed on the separation tank body 12, the accommodating cavity 121 extends along the vertical direction, and the upper and lower ends of the accommodating cavity 121 are opened, the accommodating cavity 121 is cylindrical, the mud inlet 122, the mud outlet 123 and the water outlet 124 are all disposed on the separation tank body 12, the mud inlet 122 is disposed on an upper portion of the separation tank body 12, the mud outlet 123 is disposed on a lower portion of the separation tank body 12, and the water outlet 124 is disposed on a bottom of the separation tank body 12.

Further, in this embodiment, referring to fig. 9, the sewage treatment system further includes an intermediate tank, the intermediate tank is in communication with the sludge-water separation tank, at least a part of water separated in the sludge-water separation tank enters the intermediate tank, and the concentration of toxic and harmful substances in the anaerobic inflow water can be diluted by entering the effluent part of the sludge-water separation tank into the intermediate tank; secondly, the waste water after passing through the first aerobic tank has more refractory substances, and is subjected to anaerobic hydrolysis again, so that the refractory substances are reduced, the biodegradability of anaerobic effluent is improved, and the subsequent aerobic treatment is facilitated. The effluent of the mud-water separation tank enters the second aerobic tank without sludge, so that the subsequent aerobic treatment is facilitated. Because the sludge concentration and the sludge bacteria system balance of the wastewater with different concentrations are different, the denitrification tank and the first aerobic tank are of a first level, the high-concentration wastewater is correspondingly treated, the second aerobic tank is of a second level, the sludge between the two layers is separated by the sludge-water separation tank, and the sludge is not mutually interfered.

Further, referring to fig. 3, the specific manner of moving the filter pressing plate 31 along the vertical direction is not limited, in this embodiment, the filter pressing assembly 3 includes a first driving assembly 32, the first driving assembly 32 includes a switching member 321 and a hydraulic cylinder 322, the switching member 321 is rotatably mounted on the filter pressing plate 31 along the axis of the vertical direction, the hydraulic cylinder 322 is mounted on the separation tank 1, a hydraulic rod of the hydraulic cylinder 322 is connected with the switching member 321, specifically, the hydraulic cylinder 322 is mounted on the base 11, and a push rod of the hydraulic cylinder 322 extends along the vertical direction, the lower end of the push rod is connected with the switching member 321, the switching member 321 is connected with the middle part of the filter pressing plate 31, so that the filter pressing plate 31 can be driven to move along the vertical direction by the hydraulic cylinder 322, and when the filter pressing member 321 is rotatably disposed relative to the filter pressing plate 31, the switching member 321 is rotated relative to the filter pressing plate 31, so that the friction between the filter pressing member 321 and the filter pressing plate 31 can be reduced along the vertical direction, and the filter pressing device can be prevented from being rotated along the centrifugal cylinder 31.

Further, in this embodiment, referring to fig. 7, the filter pressing plate 31 includes a pressing plate 311 and a water filtering plate 312, the pressing plate 311 is connected to the hydraulic rod, the pressing plate 311 is in a hollow arrangement, the water filtering plate 312 is disposed on one side of the pressing plate 311 facing the other filter pressing plate 31, on one hand, pressure is applied to the muddy water by the pressing plate 311, so that the muddy water can be quickly separated out of water, on the other hand, the water filtering plate 312 can well filter out the water, and the water in the muddy water can be quickly separated out by the mutual cooperation of the pressing plate 311 and the water filtering plate 312, so as to achieve the purpose of purifying the water quality.

Further, the connection mode of the pressing plate 311 and the water filtering plate 312 is not limited, and the pressing plate 311 and the water filtering plate 312 may be integrally formed, and in this embodiment, the pressing plate 311 and the water filtering plate 312 are detachably connected, so that the later cleaning of the water filtering plate 312 is facilitated.

Further, referring to fig. 2 to 4, the specific form of rotation of the centrifugal barrel 2 is not limited, in this embodiment, the mud-water separation device includes a second driving assembly 4, the second driving assembly 4 includes a gear ring 41, a driving gear 42 and a driving motor 43, the gear ring 41 is mounted on the periphery of the centrifugal barrel 2, the driving gear 42 is rotatably mounted on the separation box 1 along a vertical axis, the driving gear 42 is meshed with the gear ring 41, and a main shaft of the driving motor 43 is connected with the driving gear 42.

Further, referring to fig. 8, in order to enable the muddy water to smoothly enter the centrifugal barrel 2, an inlet 22 is formed at the upper end of the centrifugal barrel 2, an outlet 23 is formed at the lower end of the centrifugal barrel 2, the inlet 22 corresponds to the muddy water inlet 122, and the outlet 23 corresponds to the muddy water outlet 123.

Further, referring to fig. 6, in order to prevent muddy water from being thrown out from the inlet 22 and the outlet 23 when the centrifugal barrel 2 rotates, the accommodating chamber 121 includes a first chamber section 1211, a second chamber section 1212, a third chamber section 1213 and a fourth chamber section 1214 which are sequentially connected from top to bottom, the first chamber section 1211 and the third chamber section 1213 are adapted to the centrifugal barrel 2 such that the barrel wall of the centrifugal barrel 2 abuts against the chamber walls of the first chamber section 1211 and the third chamber section 1213, the sectional areas of the second chamber section 1212 and the fourth chamber section 1214 in the horizontal direction are larger than the sectional areas of the centrifugal barrel 2 in the horizontal direction, wherein the mud inlet 122 is communicated with the first chamber section 1211, the mud outlet 123 is communicated with the third chamber section 1213, the water outlet 124 is communicated with the fourth chamber section 1214, when the centrifugal cylinder 2 rotates until the inlet 22 corresponds to the mud inlet 122, the outlet 23 and the mud outlet 123 are staggered, and as the first cavity section 1211 is matched with the centrifugal cylinder 2, that is, the centrifugal cylinder 2 is in sealing fit with the first cavity section 1211, mud water does not flow to a gap between the two, so that mud water can be smoothly injected into the centrifugal cylinder 2, the same third cavity section 1213 is in sealing fit with the centrifugal cylinder 2, so that separated mud can be smoothly discharged from the outlet 23, then the two filter pressing plates 31 move towards the directions approaching each other to squeeze mud water, the filter pressing plates 31 positioned above at this time are moved below the filter pressing inlet 22, the filter pressing plates 31 positioned below are moved above the outlet 23, so can prevent through two filter-pressing board 31 in mud-water separation in-process from entry 22 with export 23 flows, and second chamber section 1212 and fourth chamber section 1214 are greater than in horizontal cross-section of centrifuge tube 2 in horizontal cross-section, so can get rid of the moisture in the centrifuge tube 2 like to on the lateral wall of third chamber section 1213 under the effect of centrifuge tube 2 to be collected, so can separate out the moisture fast through centrifuge tube 2 and two filter-pressing board 31 combined action has improved mud-water separation's efficiency, after mud-water separation is accomplished, two filter-pressing board 31 keep away from each other and get back to initial position, rotate this moment centrifuge tube 2 to export 23 with go out mud mouth 123 and be linked together, can pass through go out mud mouth 123 clearance the residue in the centrifuge tube 2.

Further, in order to facilitate collection of the water in the third chamber section 1213, a connecting channel is provided on the wall of the third chamber section 1213 to connect the second chamber section 1212 and the fourth chamber section 1214, so that all the water can be collected through the water gap.

Further, valves are provided at the mud inlet 122, the mud outlet 123 and the water outlet 124.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. The sewage treatment system is characterized by comprising a denitrification tank, a first aerobic tank, a mud-water separation tank and a second aerobic tank which are sequentially communicated, wherein a mud-water separation device is arranged in the mud-water separation tank;

the mud-water separation device comprises:

2. The wastewater treatment system of claim 1, wherein the wastewater treatment system comprises an intermediate tank in communication with the slurry-water separation tank, wherein water separated in the slurry-water separation tank is at least partially admitted to the intermediate tank.

3. The wastewater treatment system of claim 1, wherein the pressure filter assembly comprises a first drive assembly comprising an adapter rotatably mounted to the pressure filter plate along a vertical axis and a hydraulic cylinder mounted to the separator tank, wherein a hydraulic rod of the hydraulic cylinder is connected to the adapter.

4. The wastewater treatment system of claim 3, wherein the filter press plate comprises a press plate and a water filter plate, the press plate is connected with the hydraulic rod, the press plate is in a hollowed-out arrangement, and the water filter plate is arranged on one side of the press plate facing the other filter press plate.

5. The wastewater treatment system of claim 4, wherein the pressure plate and the water filter plate are removably connected.

6. The sewage treatment system according to claim 1, wherein the sludge-water separation device comprises a second driving assembly, the second driving assembly comprises a gear ring, a driving gear and a driving motor, the gear ring is mounted on the periphery of the centrifugal barrel, the driving gear is rotatably mounted on the separation tank along a vertical axis, the driving gear is meshed with the gear ring, and a main shaft of the driving motor is connected with the driving gear.

7. The wastewater treatment system of claim 1, wherein an inlet is formed in an upper end of the centrifugal cylinder, an outlet is formed in a lower end of the centrifugal cylinder, the inlet corresponds to the sludge inlet, and the outlet corresponds to the sludge outlet.

8. The wastewater treatment system of claim 7, wherein the receiving chamber comprises a first chamber section, a second chamber section, a third chamber section and a fourth chamber section connected in sequence from top to bottom, the first chamber section and the third chamber section are adapted to the centrifugal barrel such that a barrel wall of the centrifugal barrel is abutted to chamber walls of the first chamber section and the third chamber section, a cross-sectional area of the second chamber section and the fourth chamber section in a horizontal direction is larger than a cross-sectional area of the centrifugal barrel in a horizontal direction, wherein the slurry inlet is in communication with the first chamber section, the slurry outlet is in communication with the third chamber section, and the water outlet is in communication with the fourth chamber section.

9. The wastewater treatment system of claim 8, wherein a connecting channel is provided in a wall of the third chamber section to communicate the second chamber section with the fourth chamber section.

10. The wastewater treatment system of claim 1, wherein valves are provided in the slurry inlet, the slurry outlet and the water outlet.