CN214611880U - Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank - Google Patents
Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank Download PDFInfo
- Publication number
- CN214611880U CN214611880U CN202022754794.4U CN202022754794U CN214611880U CN 214611880 U CN214611880 U CN 214611880U CN 202022754794 U CN202022754794 U CN 202022754794U CN 214611880 U CN214611880 U CN 214611880U
- Authority
- CN
- China
- Prior art keywords
- sedimentation tank
- fine grid
- mud
- coagulation
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model provides a front-mounted fine grid integrated coagulation strengthening horizontal sedimentation tank, which is provided with a diversion trench connected with a water inlet pipe, wherein the outlet side of the diversion trench is connected with a fine grid area, the downstream of the fine grid area is connected with a coagulation strengthening area, the fine grid area and the coagulation strengthening area are integrated, the downstream of the coagulation strengthening area is connected with a diversion channel, the outlet side of the diversion channel is connected with the horizontal sedimentation tank, the bottom of the horizontal sedimentation tank is provided with a mud discharge hopper, the mud discharge hopper is arranged close to the outlet side of the diversion channel, and the lower part of the mud discharge hopper is provided with a mud discharge pipe; the utility model discloses reduce structure area, can strengthen settling zone efficiency through adding the coagulant under unfavorable operating mode to increased the medicament and mixed the effect through optimizing into water the mode, further improved water treatment effect.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to horizontal sedimentation tank is reinforceed in integrated coagulation of leading fine grid.
Background
Domestic sewage, industrial wastewater and rainwater all contain a large amount of suspended matters and floating matters, the pollutants are mainly removed by a physical and chemical method, and screening interception method, gravity separation method, centrifugal separation method and other methods are mainly adopted, wherein a grating, a grit chamber and a sedimentation tank are used as common primary treatment structures, and the method has wide application in the field of sewage treatment.
Along with the continuous development of urbanization in China, more and more urban land areas are more and more tense, in the construction of sewage treatment plants, the situation of tense land use of governments and enterprises can be relieved by reducing the land use area, the unified management of the sewage treatment plants is facilitated, and the operation and maintenance cost is reduced. Therefore, this from the angle of practicing thrift land utilization area, utility model an integrated fine grid and strengthen sedimentation tank of coagulating sedimentation effect become one of the difficult problem that the industry is urgent to solve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a level flow sedimentation tank is reinforceed in integrated coagulation of leading fine grid, the utility model discloses reduce structure area, can strengthen settling zone efficiency through adding the coagulant under unfavorable operating mode to through optimizing the mode of intaking, increased the mixed effect of medicament, further improve water treatment.
Therefore, the utility model adopts the following technical scheme:
the utility model provides a leading thin grid integrated coagulation strengthens advection sedimentation tank which characterized in that: set up the guiding gutter, thin grid district is connected to the outlet side of guiding gutter, and the low reaches in thin grid district are connected and are thoughtlessly congealed the intensive district, and thin grid district and the integrated setting in intensive district that thoughtlessly congeals, the low reaches in intensive district that congeals link to each other with the diversion canal, and diversion canal outlet side connects the advection sedimentation tank, and the bottom of advection sedimentation tank sets up the mud bucket, and the mud bucket is close to diversion canal outlet side setting, and the lower part of mud bucket sets up the mud pipe.
Further: and a first water inlet hole is connected between the diversion trench and the fine grid area.
Further: one or a plurality of liquid channels are arranged in the fine grating area, fine gratings are arranged on each liquid channel, an upstream gate and a downstream gate are arranged on the upstream and the downstream of each fine grating respectively, and liquid level meters are arranged on the two sides of each fine grating.
Further: the top of the fine grid is provided with a spiral conveyor, and an outlet of the spiral conveyor is connected with a garbage conveying protective cylinder in a switching mode.
Further: the concrete strengthening area is provided with a stirrer, the middle section and the tail end of the stirrer are provided with stirring paddles, the upper stream of the concrete strengthening area is provided with a dosing pipe, and a second water inlet hole is connected between the concrete strengthening pool and the diversion channel.
Further: set up water distribution barricade, water distribution tracery wall and inclined floor in the water conservancy diversion canal, inclined floor sets up the bottom in the water conservancy diversion canal, and the water distribution barricade sets up in the upper reaches of water distribution tracery wall, has certain interval between the bottom surface of water distribution barricade and inclined floor's top surface, set up a plurality of apopores on the water distribution tracery wall, the bottom smooth connection of the low reaches surface of inclined floor and apopore.
Further: the water conservancy diversion canal outlet side sets up a plurality of mud hoppers, and every mud hopper all connects the mud discharging and takes out the pipe, and the mud discharging valve is passed through in the low reaches that the mud discharging took out the pipe and connect the mud discharging equipment, and the mud discharging equipment divides to be two the tunnel into main mud discharging pipe and reserve mud discharging pipe, all sets gradually on main mud discharging pipe and the reserve mud discharging pipe, first maintenance valve, check valve, reducer, dredge pump and second maintenance valve, set up manual valve on the end of mud discharging equipment, the export and the low reaches sludge treatment factory of mud discharging equipment are connected.
Further: and a mud scraper is arranged on the horizontal sedimentation tank.
Further: the fine grid area and the coagulation strengthening area are integrally arranged in a water pool.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model is provided with the fine grid area and the coagulation strengthening area in front of the horizontal sedimentation tank, integrates the fine grid area and the coagulation strengthening area in one water tank, and is connected into a whole through the fine grid, thereby saving the construction area of a sewage treatment plant and facilitating the operation of later-stage management and maintenance of sewage treatment facilities; the utility model discloses set up and reinforce the district that thoughtlessly congeals, can improve precipitation efficiency in the short time through throwing the coagulating agent, the low reaches export in the district that thoughtlessly congeals sets up water distribution barricade and water distribution tracery wall, make the sewage flow state stable, then sewage flows through the water distribution tracery wall, evenly go out water through a plurality of apopores on the water distribution tracery wall, because water conservancy diversion canal inside disposes rivers, utilize hydraulic disturbance intensive mixing to congeal the agent, can shorten and thoughtlessly congeal the district volume of reinforceing, area has further been reduced, the treatment effeciency has been improved.
Drawings
Fig. 1 is a plan view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a cross-sectional view of fig. 1 taken along line C-C.
The labels in the figures are: 1-water inlet pipe; 2-a first water inlet hole; 3-an upstream gate; 4-a first pre-buried steel plate; 5-a liquid level meter; 6-second pre-buried steel plate; 7-fine grating; 8-a fine grid area; 9-a stirrer; 10-a medicine feeding pipe; 11-a second water inlet hole; 12-a sludge discharge valve; 13-a first service valve; 14-a sludge pump; 15-manual valve; 16-reducer; 17-a check valve; 18-a screw conveyor; 19-water distribution wall; 20-water distribution retaining wall; 21-an inclined floor; 22-a diversion trench; 23-a garbage conveying protecting cylinder; 24-a trash can; 25-a stirring paddle; 26-a first steel grid cover plate; 27-downstream gate; 28-main sludge discharge pipe; 29-a mud bucket; 30-a diversion channel; 31-a coagulation strengthening zone; 32-a mud scraper; 34-a second service valve; 35-spare sludge discharge pipe.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
As shown in fig. 1-4, the utility model provides a pair of horizontal sedimentation tank is reinforceed in integrated coagulation of leading fine grid, fine grid coagulation is reinforceed the pond and is integrated in same rectangle pond with horizontal sedimentation tank, and set up the one end at rectangle pond body length direction, arrange along the width direction of rectangle pond body, the length direction that also is fine grid coagulation and intensification pond is the width direction of rectangle pond body, and combine the 8 liquid passage in fine grid district below, make the rivers direction that whole fine grid coagulation is reinforceed the pond also for following its length direction, and set up water conservancy diversion canal 30 between fine grid coagulation and intensification pond and horizontal sedimentation tank.
The fine grid coagulation strengthening tank is provided with a fine grid area 8 and a coagulation strengthening area 31 along the width direction of the rectangular tank body, the downstream side of the fine grid area 8 is connected with the coagulation strengthening area 31, and a liquid flow passage and a fine grid 7 are arranged.
The fine grid coagulation strengthening pool is provided with a guide groove 22 connected with a water inlet pipe 1, the outlet side of the guide groove 22 is connected with a fine grid area 8 of the fine grid coagulation strengthening pool, the downstream of the fine grid area 8 is connected with a coagulation strengthening area 31, the fine grid area 8 and the coagulation strengthening area 31 are integrally arranged in a water pool, the downstream of the coagulation strengthening area 31 is connected with a guide channel, the outlet side of the guide channel is connected with a horizontal sedimentation tank, the bottom of the horizontal sedimentation tank is provided with a sludge discharge hopper 29, the sludge discharge hopper 29 is close to the outlet side of the guide channel 30, and a sludge discharge pipe 28 is connected with a downstream sludge treatment facility.
The guiding gutter 22 is connected many inlet tubes 1, and the upper portion of guiding gutter 22 sets up first steel grating apron 26, and first steel grating apron 26 is used for hiding guiding gutter 22, prevents that people or object from falling, is connected first inlet opening 2 between guiding gutter 22 and the thin grid district 8, and first inlet opening 2 sets up in the bottom in the direction of height.
One or more liquid channels are arranged in the fine grating area 8, each liquid channel is provided with a fine grating 7, the upstream gate 3 and the downstream gate 27 are respectively arranged at the upstream and the downstream of the fine grating 7, the upstream gate 3 and the downstream gate 27 are fixed through a first embedded steel plate 4, the fine grating 7 is fixed through a second embedded steel plate 6, the first embedded steel plate 4 and the second embedded steel plate 6 are groove plates fixed in the pool wall, and the upstream gate 3, the downstream gate 27 and the fine grating 7 are fixed on the groove plates; when the fine grating 7 needs to be overhauled, the upstream gate 3 and the downstream gate 27 in front of and behind the fine grating 7 can be closed, the fine grating 7 is overhauled after water is drained, the liquid level meters 5 are arranged on two sides of the fine grating 7, and the liquid level meters 5 are used for monitoring the water level difference of sewage flowing through the fine grating 7 in front of and behind.
The top of the fine grid 7 is provided with a spiral conveyor 18, the outlet of the spiral conveyor 18 is connected with a garbage conveying protective cylinder 23, and the tail end of the garbage conveying protective cylinder 23 is connected with a garbage can 24.
Set up mixer 9 on the district 31 is reinforceed in the coagulation, the interlude and the end of mixer 9 all set up stirring rake 25, the upper reaches of the district 31 is reinforceed in the coagulation is equipped with pencil 10, adds pencil 10 and can throw intensive precipitation effect medicaments such as coagulant, flocculating agent, and the medicament adds the back, fully reacts with sewage under the effect of the stirring rake 25 stirring of mixer 9, is connected second inlet opening 11 between concrete intensification pond and the water conservancy diversion canal, and the sewage after mixing with the medicament gets into water conservancy diversion canal 30 by second inlet opening 11.
Set up distribution barricade 20, distribution tracery wall 19 and inclined bottom plate 21 in the diversion canal 30, the bottom of diversion canal is inclined bottom plate 21, and inclined bottom plate 21's top surface slope sets up, and the upper reaches elevation is higher than the low reaches elevation, and distribution barricade 20 sets up the upper reaches at distribution tracery wall 19, has certain interval between distribution barricade 20's bottom and inclined bottom plate 21's top, and distribution barricade 20's bottom elevation is less than distribution tracery wall 19's top elevation, set up a plurality of apopores 36 on distribution tracery wall 19, apopore 36 is equidistant on distribution tracery wall 19 and is seted up, and the size is the same, and inclined bottom plate 21's low reaches surface and apopore 36's bottom smooth connection, sewage carry the medicament after distribution 20 blocks, can make the water flow distribution attitude stable, then sewage flow through distribution tracery wall 19, through a plurality of apopores 36 even water on the tracery wall 19.
The outlet side of the diversion canal is provided with a plurality of mud discharging hoppers 29, each mud discharging hopper 29 is connected with a mud discharging pumping pipe 33, the lower reaches of the mud discharging pumping pipes 33 are connected with mud discharging equipment through mud discharging valves 12, the mud discharging equipment is divided into a main mud discharging pipe 28 and a standby mud discharging pipe 35, the main mud discharging pipe 28 and the standby mud discharging pipe 35 are sequentially provided with a first maintenance valve 13, a check valve 17, a reducer 16, a mud discharging pump 14 and a second maintenance valve 34, the mud discharging pump 14 is used for providing power, the reducer 16 is used for changing the pipe diameter, the check valve 17 ensures one-way movement of mud, prevents backflow of mud, the mud discharging valves 12 are electric valves, when the sludge pump 14 needs to be overhauled, the first overhauling valve 13 and the second overhauling valve 34 are opened, sludge in the pipe is emptied, the sludge pump 14 can be overhauled, the tail end of the sludge discharging device is provided with the manual valve 15, and the outlet of the sludge discharging device is connected with a downstream sludge treatment plant.
The horizontal sedimentation tank is provided with a mud scraper 32, and after sewage is sedimentated by the horizontal sedimentation tank, the mud scraper 32 is started to scrape the sludge sedimented at the bottom of the horizontal sedimentation tank into a mud discharge hopper.
The sewage treatment process of the pre-fine grid integrated coagulation reinforced horizontal sedimentation tank comprises the following steps:
the utility model discloses the sewage that handles is continuous zigzag trend before getting into the advection sedimentation tank, is the V font trend after the diffusion when the water conservancy diversion canal, guarantees treatment effect and saves space. Sewage flows into a diversion trench 22 from a plurality of water inlet pipes 1, the diversion trench 22 is arranged at the side of the front fine grid integrated coagulation reinforced horizontal sedimentation tank and is arranged along the width direction, the width dimension of the whole diversion trench 22 is far larger than the length dimension, the sewage in the diversion trench 22 enters a fine grid area 8 through a first water inlet hole 2 along the length direction of the front fine grid integrated coagulation reinforced horizontal sedimentation tank through the outlet of the water inlet pipe 1, the fine grid area 8 and a coagulation reinforced area 31 are integrated and arranged in the fine grid coagulation reinforced tank, the whole fine grid coagulation reinforced tank is arranged in a cuboid shape, the width W direction of a rectangular tank body is used as the length direction and the sewage flow direction, the arrangement space of the front fine grid integrated coagulation reinforced horizontal sedimentation tank is saved, and the width L' of the whole fine grid coagulation reinforced tank is shorter, so that the width of a corresponding liquid channel is narrower, better play water conservancy diversion and throttle effect, when sewage through thin grid 7, floater and partial suspended solid in the sewage are dammed before thin grid 7, and the suspended solid passes through screw conveyer 8 and finally gets into in garbage bin 24 through the garbage bin.
Sewage flows out of the fine grid area 8 and then enters the coagulation strengthening area 31, chemicals such as coagulant are added through the dosing pipe, and the mixture is fully stirred by the stirrer 9, so that suspended matters in the sewage are subjected to coagulation reaction, and the sewage subjected to coagulation reaction flows into the diversion channel 30 through the second water inlet hole 11 along the length direction of the front fine grid integrated coagulation strengthening horizontal sedimentation tank.
The flow direction of sewage in the front fine grid integrated coagulation reinforced advection sedimentation tank is baffling, the sewage firstly enters the fine grid area 8 through the first water inlet hole 2 along the length direction of the front fine grid integrated coagulation reinforced advection sedimentation tank from the water inlet pipe 1, then flows along the width direction of the front fine grid integrated coagulation reinforced advection sedimentation tank in the fine grid coagulation reinforced sedimentation tank, and finally flows into the diversion channel 30 through the second water inlet hole 11 along the length direction of the front fine grid integrated coagulation reinforced advection sedimentation tank.
The width of the diversion channel 30 is consistent with the width of the fine grid coagulation strengthening pool, the water distribution retaining wall and the water distribution tracery wall are arranged in the diversion channel along the width direction, the area is large, more sewage can flow through the water distribution retaining wall and the water distribution tracery wall at the same time, uniform water distribution and slow water outflow effects are realized, the working efficiency is improved, after the sewage is blocked by the water distribution retaining wall in the diversion channel, part of sediments are precipitated above the inclined bottom plate 21 and flow into the sludge discharge hopper along the inclined plane, meanwhile, the sewage uniformly disperses out of the diversion channel through the water outlet holes 36 in the water distribution tracery wall 19 and enters the horizontal flow sedimentation tank, after the sewage enters the horizontal flow sedimentation tank, other sediments in the sewage are precipitated to the bottom of the sedimentation tank, and enter the sludge hopper 29 through the mud scraper 32, and finally the sludge is discharged out of the tank through the suction pump 14.
The above embodiments are merely preferred technical solutions of the present invention, and it should be understood by those skilled in the art that modifications or substitutions of technical solutions or parameters in the embodiments can be made without departing from the principles and essential conditions of the present invention, and all the modifications or substitutions should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a leading thin grid integrated coagulation strengthens advection sedimentation tank which characterized in that: set up the guiding gutter, thin grid district is connected to the outlet side of guiding gutter, and the low reaches in thin grid district are connected and are thoughtlessly congealed the intensive district, and thin grid district and the integrated setting in intensive district that thoughtlessly congeals, the low reaches in intensive district that congeals link to each other with the diversion canal, and diversion canal outlet side connects the advection sedimentation tank, and the bottom of advection sedimentation tank sets up the mud bucket, and the mud bucket is close to diversion canal outlet side setting, and the lower part of mud bucket sets up the mud pipe.
2. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: and a first water inlet hole is connected between the diversion trench and the fine grid area.
3. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: one or a plurality of liquid channels are arranged in the fine grating area, fine gratings are arranged on each liquid channel, an upstream gate and a downstream gate are arranged on the upstream and the downstream of each fine grating respectively, and liquid level meters are arranged on the two sides of each fine grating.
4. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 3, characterized in that: the top of the fine grid is provided with a spiral conveyor, and an outlet of the spiral conveyor is connected with a garbage conveying protective cylinder in a switching mode.
5. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: the concrete strengthening area is provided with a stirrer, the middle section and the tail end of the stirrer are provided with stirring paddles, the upper stream of the concrete strengthening area is provided with a dosing pipe, and a second water inlet hole is connected between the concrete strengthening pool and the diversion channel.
6. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: set up water distribution barricade, water distribution tracery wall and inclined floor in the water conservancy diversion canal, inclined floor sets up the bottom in the water conservancy diversion canal, and the water distribution barricade sets up the upper reaches at the water distribution tracery wall, has the interval between the bottom surface of water distribution barricade and inclined floor's top surface, set up a plurality of apopores on the water distribution tracery wall, the bottom smooth connection of the low reaches surface and the apopore of inclined floor.
7. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: the water conservancy diversion canal outlet side sets up a plurality of mud hoppers, and every mud hopper all connects the mud discharging and takes out the pipe, and the mud discharging valve is passed through in the low reaches that the mud discharging took out the pipe and connect the mud discharging equipment, and the mud discharging equipment divides to be two the tunnel into main mud discharging pipe and reserve mud discharging pipe, all sets gradually on main mud discharging pipe and the reserve mud discharging pipe, first maintenance valve, check valve, reducer, dredge pump and second maintenance valve, set up manual valve on the end of mud discharging equipment, the export and the low reaches sludge treatment factory of mud discharging equipment are connected.
8. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: and a mud scraper is arranged on the horizontal sedimentation tank.
9. The integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank of claim 1, characterized in that: the fine grid area and the coagulation strengthening area are integrally arranged in a water pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022754794.4U CN214611880U (en) | 2020-11-25 | 2020-11-25 | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022754794.4U CN214611880U (en) | 2020-11-25 | 2020-11-25 | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214611880U true CN214611880U (en) | 2021-11-05 |
Family
ID=78427753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022754794.4U Active CN214611880U (en) | 2020-11-25 | 2020-11-25 | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214611880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624394A (en) * | 2020-11-25 | 2021-04-09 | 中国电建集团华东勘测设计研究院有限公司 | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank |
-
2020
- 2020-11-25 CN CN202022754794.4U patent/CN214611880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624394A (en) * | 2020-11-25 | 2021-04-09 | 中国电建集团华东勘测设计研究院有限公司 | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106315797A (en) | Small fine dosing, coagulating and precipitating integrated device | |
| CN108423788A (en) | Without medicament secondary waterpower coagulation assisted pond | |
| CN214611880U (en) | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank | |
| CN211411103U (en) | High-density sedimentation tank | |
| CN110496434A (en) | Desanding de-sludging device and implementation method in landfill leachate system for anaerobic treatment | |
| CN115069023A (en) | Sewage pipe network sediment sandstone separation and organic matter recovery system and process | |
| CN211025241U (en) | High density precipitation equipment | |
| CN110448940B (en) | Mud water treatment system and mud water treatment method for water purification plant | |
| CN212713010U (en) | GXC type flocculation precipitator | |
| CN202625908U (en) | Central-positioned high-density precipitating water purifying pond | |
| CN112064755A (en) | Accurate reposition of redundant personnel of inlet for stom water initial stage rainwater and processing system | |
| CN213895539U (en) | Black and odorous water body treatment system | |
| CN112624394A (en) | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank | |
| CN206843162U (en) | A kind of outdoor tube settler | |
| CN215798875U (en) | Concrete effluent disposal system | |
| CN216273431U (en) | Power station grit aggregate waste water treatment equipment | |
| CN212894250U (en) | Container type high-efficiency clarified water treatment device | |
| CN212559854U (en) | Integrated rural domestic sewage treatment equipment | |
| CN210002198U (en) | construction site water collection comprehensive utilization system | |
| CN112028326A (en) | Sewage treatment plant is used in municipal administration | |
| CN211312791U (en) | Decontamination shunting device for preventing and treating agricultural non-point source pollution | |
| CN219983981U (en) | Multi-purpose sewage sedimentation tank for stirring station | |
| CN111453938A (en) | Integrated rural domestic sewage treatment equipment | |
| CN216639118U (en) | Concrete sewage treatment equipment | |
| CN215000189U (en) | Hydraulic pipeline for hydraulic engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |