CN216918855U - Novel tunnel wastewater treatment multistage fine filtration system - Google Patents
Novel tunnel wastewater treatment multistage fine filtration system Download PDFInfo
- Publication number
- CN216918855U CN216918855U CN202220216279.7U CN202220216279U CN216918855U CN 216918855 U CN216918855 U CN 216918855U CN 202220216279 U CN202220216279 U CN 202220216279U CN 216918855 U CN216918855 U CN 216918855U
- Authority
- CN
- China
- Prior art keywords
- pipe
- siphon
- stirrer
- water inlet
- water
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The utility model discloses a novel tunnel wastewater treatment multistage fine filtration system, which comprises a sewage lifting tank and an inclined tube sedimentation tank, wherein an automatic stirrer is arranged on a pipeline between the sewage lifting tank and the inclined tube sedimentation tank, and water subjected to sedimentation treatment in the inclined tube sedimentation tank enters a single-cylinder fine filter through a water inlet pipe; a water inlet lifting pump positioned in the sewage lifting tank presses the wastewater into an automatic stirrer through a water inlet pipe of the stirrer and mixes the wastewater with a coagulant added by a dosing device; the single-cylinder fine filter is internally provided with a multi-layer graded filter material for removing solid suspended matters in water, and a back washing device for washing the multi-layer graded filter material is arranged above the multi-layer graded filter material. The utility model can reduce the size of equipment and has small occupied area, thereby achieving the purposes of convenient transportation, flexible installation and improving the quality of the discharged water, improving the precipitation efficiency, reducing the turbidity of the discharged water, being more suitable for the projects of narrow field, difficult transportation and the like in a tunnel construction area, further improving the quality of the discharged water and meeting the requirement of environmental protection.
Description
Technical Field
The utility model belongs to the technical field of tunnel wastewater treatment equipment, and particularly relates to a novel tunnel wastewater treatment multistage fine filtration system.
Background
With the continuous input of traffic facilities and the continuous progress of technology in China, tunnel engineering is more and more widely applied to mountainous areas and hilly areas. In the process of tunnel construction, gushing water generated by passing through a bad geological unit, spraying water adopted by blasting dust removal and the like are mixed with dust, soil and grease leaked by machinery in tunnel construction to generate a large amount of waste water. In the face of increasingly severe national environmental requirements, wastewater can be discharged after being purified so as to protect green water of green mountains.
However, the tunnel construction area is mainly a mountainous area, the terrain of the construction site is complex, the land leveling difficulty is high, and the transportation condition is limited. The traditional mode that tertiary sedimentation tank adds the pipe chute sedimentation tank and handles is taken up an area big, and equipment finished product transportation then is difficult to get into the place, and the on-the-spot welding dress then is difficult to guarantee equipment quality. Meanwhile, the turbidity of the tunnel wastewater treatment effluent of the inclined tube sedimentation tank with high silt content is about 100-150 NTU, and the effluent cannot reach the discharge standard easily.
SUMMERY OF THE UTILITY MODEL
Based on the defects of the prior art, the utility model solves the technical problem of providing a novel tunnel wastewater treatment multistage fine filtration system which can reduce the size of equipment, has small occupied area, is convenient to transport and flexibly install, improves the quality of discharged water and reaches the discharge standard.
In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model provides a novel tunnel wastewater treatment multistage fine filtration system, which comprises a sewage lifting tank and an inclined tube sedimentation tank connected with the sewage lifting tank, wherein an automatic stirrer is arranged on a pipeline between the sewage lifting tank and the inclined tube sedimentation tank, and water subjected to sedimentation treatment in the inclined tube sedimentation tank enters a single-cylinder fine filter through a water inlet pipe; a water inlet lifting pump positioned in the sewage lifting tank presses the wastewater into the automatic stirrer through a water inlet pipe of the stirrer and mixes the wastewater with a coagulant added by a dosing device; the single-cylinder fine filter is internally provided with a multi-layer graded filter material for removing solid suspended matters in a water body, and a back washing device for washing the multi-layer graded filter material is arranged above the multi-layer graded filter material.
By last, according to characteristics such as tunnel waste water silt content is high, it is effectual to congeal, combine traditional lifting means, pipe chute sedimentation tank and secondary filter device, cancel tertiary sedimentation tank and change into sewage lifting tank, increase into water hoisting device and single-cylinder secondary filter on the basis of former traditional pipe chute sedimentation tank, with traditional coagulating basin, the flocculation basin, the coagulation mixer, device improvements such as flocculation mixer are automatic agitator, can retrench equipment size, area is little, in order to reach the purpose of convenient transportation, nimble installation, promote the play water quality of water, improve precipitation efficiency, reduce out the water turbidity, it is more fit for tunnel construction regional place narrow and small, projects such as transportation difficulty, further improve simultaneously out water quality, make it satisfy the environmental protection requirement.
Furthermore, a conical filter screen and a stirring ball positioned below the conical filter screen are arranged in the automatic stirrer.
By last, increased filter area through the toper filter screen, can make the water in the agitator filter in the spiral flow through the agitator ball, improve the effective contact of water and filter screen, improve the filter effect, can hold back thicker pollutant in the waste water through the toper filter screen, carry out the primary filtration to waste water.
Further, the stirrer water inlet pipe comprises a first stirrer water inlet pipe and a second stirrer water inlet pipe which are communicated with two sides of the automatic stirrer, and a third stirrer water inlet pipe which is communicated with the bottom of the automatic stirrer; the first stirrer water inlet pipe and the second stirrer water inlet pipe are opposite in direction and are arranged in a tangent mode with the automatic stirrer, and the first stirrer water inlet pipe and the second stirrer water inlet pipe are used for enabling wastewater to automatically rotate in the automatic stirrer and driving the stirring ball to rotate, so that the wastewater is fully mixed with coagulant added by the dosing device.
By the above, the water body in the automatic stirrer is driven to rotate automatically through the three stirrer water inlet pipes which are arranged in a staggered mode, so that the coagulant entering the automatic stirrer also rotates along with the water body, and the stirring ball is driven to rotate, so that the wastewater and the efficient coagulant added by the dosing device are fully mixed, the reaction of the reagents is more complete, and the optimal coagulation performance is fully exerted.
Furthermore, the back washing device comprises a siphon ascending pipe communicated with a water inlet pipe extending above the multi-layer graded filter material, a siphon auxiliary pipe communicated with the position, close to the end part of the siphon ascending pipe, a siphon descending pipe communicated with the end part of the siphon ascending pipe, and an air suction pipe which is communicated with the position, connected with the siphon ascending pipe and the siphon descending pipe, of the siphon ascending pipe and extends obliquely downwards; and a water ejector is arranged at the intersection of the siphon auxiliary pipe and the air exhaust pipe and used for pumping air at the upper ends of the air exhaust pipe and the siphon descending pipe away to enable the siphon descending pipe to form negative pressure.
Therefore, the backwashing device can ensure the cleanness of the single-cylinder fine filter, prolong the service life of the multi-layer graded filter material and more effectively exert the filtering effect. Through the back flush function of the inverted U-shaped siphon structure consisting of the siphon ascending pipe and the siphon descending pipe, when the multi-layer graded filter material is blocked, the pressure in the fine filter is caused to be greater than the external pressure, and the water in the fine filter is discharged to the sewage lifting pond through the siphon descending pipe to flush the multi-layer graded filter material.
Furthermore, a back washing timing pipe is communicated with the top of the connecting siphon descending pipe and the siphon ascending pipe, and when the water level drops below a pipe orifice at the lower end of the back washing timing pipe, the siphon of the back washing device is broken, and the back washing is finished.
By the above, the siphon phenomenon can be avoided by the back-flushing timing pipe, and the siphon ascending pipe can not absorb water in the fine filter, so that the multi-layer graded filter material starts to be normally filtered.
Furthermore, the device also comprises a forced back-flushing pipe connected to the upper end of the water ejector at the joint of the siphon auxiliary pipe and the exhaust pipe, and a valve is arranged on the forced back-flushing pipe.
When forced back flushing is needed, a valve on the forced back flushing pipe is opened, high-speed water flow generated by water inflow at a water ejector at the joint of the siphon auxiliary pipe and the air suction pipe generates a strong air suction effect, siphon formation is promoted, and forced back flushing is started.
Optionally, the end of the siphon downcomer leads to the sewage lifting tank.
From above, the back flush drainage enters into sewage lifting pond, avoids causing secondary water pollution.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments, together with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic structural diagram of a tunnel wastewater treatment multistage fine filtration system of the present invention;
fig. 2 is a schematic structural view of the automatic stirrer of the present invention.
Reference numerals:
1-a sewage lifting tank;
2-a water inlet lift pump;
3-an automatic stirrer, 3-1-a first stirrer water inlet pipe, 3-2-a second stirrer water inlet pipe, 3-3-a third stirrer water inlet pipe, 3-4-a conical filter screen, 3-5-a stirrer water outlet pipe and 3-6-a stirring ball;
4-an inclined tube sedimentation tank;
5-water distribution tank;
6-water inlet pipe;
7-single cylinder type fine filter;
8-bearing layer;
9-multilayer graded filter material;
10-a communicating tube;
11-siphon riser;
12-a forced backwash pipe;
13-a siphon auxiliary pipe;
14-an extraction tube;
15-backwashing the timing pipe;
16-siphon downcomer;
17-a water outlet pipe;
18-administration set.
Detailed Description
Other aspects, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which form a part of this specification, and which illustrate, by way of example, the principles of the utility model. In the referenced drawings, the same or similar components in different drawings are denoted by the same reference numerals.
As shown in fig. 1 to 2, the present application provides a novel tunnel wastewater treatment multi-stage fine filtration system, wherein the arrow shown in the figure is the flow direction of water flow in the wastewater purification treatment process.
The gravity type tunnel wastewater treatment fine filter comprises a sewage lifting tank 1, a water inlet lifting pump 2, an automatic stirrer 3, an inclined tube sedimentation tank 4 connected with the sewage lifting tank 1, a water distribution tank 5 arranged on one side of the inclined tube sedimentation tank 3, a single-cylinder fine filter 7, a backwashing device, a dosing device 18 and the like. An automatic stirrer 3 is installed on the pipeline between the sewage lifting tank 1 and the inclined tube sedimentation tank 4.
The water inlet lift pump 2 is positioned in the sewage lift tank 1, water after sedimentation treatment by the inclined tube sedimentation tank 4 is converged into the water distribution tank 5, and the bottom of the water distribution tank 5 is connected with the single-cylinder fine filter 7 through the water inlet pipe 6. The wastewater is pressed into the automatic stirrer 3 through the water inlet pipe of the stirrer by the water inlet lifting pump 2 positioned in the wastewater lifting tank 1 and is mixed with the coagulant added by the chemical dosing device 18.
The wastewater flows into a wastewater lifting tank 1 from a wastewater pipeline, after the wastewater lifting tank 1 is regulated and stored, the wastewater is pressurized by a water inlet lifting pump 2, and then enters an automatic stirrer 3 from a first stirrer water inlet pipe 3-1, a second stirrer water inlet pipe 3-2 and a third stirrer water inlet pipe 3-3 respectively, wherein the first stirrer water inlet pipe 3-1 and the second stirrer water inlet pipe 3-2 are communicated with two sides of the bottom of the automatic stirrer 3 respectively, the first stirrer water inlet pipe 3-1 and the second stirrer water inlet pipe 3-2 are in opposite directions and are arranged in a tangent manner with the automatic stirrer 3, the wastewater can automatically rotate in the automatic stirrer 3 and simultaneously drive a stirring ball 3-6 to rotate, so that the wastewater is fully mixed with an efficient coagulant added by an administration device 18. Meanwhile, a conical filter screen 3-4 is arranged in the automatic stirrer 3, the stirring balls 3-6 are positioned below the conical filter screen 3-4, and the conical filter screen 3-4 can intercept thicker pollutants in the wastewater to primarily filter the wastewater. The connection part of the first stirrer water inlet pipe 3-1 and the second stirrer water inlet pipe 3-2 with the automatic stirrer 3 is positioned below the conical filter screen 3-4, and finally, the wastewater flows out from a stirrer water outlet pipe 3-5 communicated with the top of the automatic stirrer 3 and enters an inclined tube sedimentation tank 4.
The inclined tube sedimentation tank 3 is internally provided with a sludge storage hopper, a water distribution area, an inclined tube area and a clear water area from bottom to top in sequence, the clear water area is provided with a plurality of water collecting grooves, and waste water enters the inclined tube sedimentation tank 4 and enters the water distribution tank 5 after being subjected to sedimentation treatment. The water distribution tank 5 enters the single-cylinder fine filter 7 through the water inlet pipe 6, a multi-layer graded filter material 9 used for removing solid suspended matters in the water body is arranged in the single-cylinder fine filter 7, water filtered by the multi-layer graded filter material 9 from top to bottom enters the upper water tank of the single-cylinder fine filter 7 through the communicating pipe 10, and the treated clean water reaching the standard flows out of the single-cylinder fine filter 7 through the water outlet pipe 17 and is connected to the natural water body.
The single-cylinder fine filter 7 adopts 7 layers of multi-layer graded filter materials 9, the multi-layer graded filter materials 9 are supported by a supporting layer 8 specially made by UPVC, the filtering speed and the filtering precision of a filtering system can be increased through the multi-layer graded filter materials 9, and the effects of increasing the filtering water quantity and improving the filtering precision are achieved.
In the utility model, a back flushing device for flushing the multi-layer graded filter materials 9 is arranged above the multi-layer graded filter materials 9, wherein the back flushing device comprises a siphon ascending pipe 11 communicated with a water inlet pipe 6 extending above the multi-layer graded filter materials 9, a siphon auxiliary pipe 13 communicated with the position of the siphon ascending pipe 11 close to the end part of the siphon ascending pipe, a siphon descending pipe 16 communicated with the end part of the siphon ascending pipe 11, and an air suction pipe 14 which is communicated with the position of the siphon ascending pipe 11 connected with the siphon descending pipe 16 and obliquely extends downwards. When the water level in the siphon rising pipe 11 gradually rises, the air squeezed by the water in the rising pipe is compressed before reaching the siphon auxiliary pipe 13, and passes through the water seal in the sewage lifting tank 1 from the lower end of the siphon falling pipe 16 to enter the atmosphere. When the water level in the siphon ascending pipe 11 exceeds the upper end pipe mouth of the siphon auxiliary pipe 13, water flows down from the siphon auxiliary pipe 13, when the rapid water flow passes through the water ejector at the connection part of the air suction pipe 14 and the siphon auxiliary pipe 13, air in the air suction pipe 14 is taken away, so that negative pressure is generated, meanwhile, air at the upper end of the siphon descending pipe 16 is sucked away, so that negative pressure is generated in the siphon descending pipe 16, and because vortex is generated at the upper opening inflow part of the siphon auxiliary pipe 13, a part of air is entrained, and the increase of the vacuum degree in the siphon descending pipe 16 is accelerated. The water level in the siphon riser 11 continues to rise while the water level in the siphon downcomer 16 also rises, and a siphon is formed when the two water columns in the siphon merge. This causes the pressure drop in the upper layer of the multi-layer graded filter material 9 in the single-cylinder fine filter 7 to force the filtered clean water in the single-cylinder fine filter 7 to enter the siphon tube along the opposite direction during filtering, so that the filter material layer is back-flushed, and the back-flushed water is discharged into the sewage lifting tank 1.
The top position of the connecting part of the siphon ascending pipe 11 and the siphon descending pipe 16 is also communicated with a backwashing timing pipe 15, the backwashing causes the water level in the single-cylinder fine filter 7 to drop, when the water level drops below the lower end pipe orifice of the backwashing timing pipe 15, the lower end pipe orifice is communicated with the atmosphere, the siphon is destroyed, the backwashing is finished, and the normal filtration is started.
When the forced back flushing is needed, the forced back flushing pipe 12 is a pressure pipe connected to the upper end of the water ejector at the joint of the siphon auxiliary pipe 13 and the suction pipe 14, a valve on the forced back flushing pipe 12 is opened, and high-speed water flow generated by inlet water at the water ejector at the joint of the siphon auxiliary pipe 13 and the suction pipe 14 generates a strong air suction effect to promote siphon formation and start the forced back flushing.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (7)
1. A novel tunnel wastewater treatment multistage fine filtration system comprises a sewage lifting tank (1) and an inclined tube sedimentation tank (4) connected with the sewage lifting tank (1), and is characterized in that an automatic stirrer (3) is arranged on a pipeline between the sewage lifting tank (1) and the inclined tube sedimentation tank (4), and the inclined tube sedimentation tank (4) is connected with a single-cylinder fine filter (7) through a water inlet pipe (6);
a water inlet lifting pump (2) is arranged in the sewage lifting pool (1), the water inlet lifting pump (2) is connected with the automatic stirrer (3) through a stirrer water inlet pipe, and the automatic stirrer (3) is connected with a dosing device (18);
a multi-layer graded filter material (9) for removing solid suspended matters in the water body is arranged in the single-cylinder type fine filter (7), and a back washing device for washing the multi-layer graded filter material (9) is arranged above the multi-layer graded filter material (9).
2. The novel multi-stage fine filtration system for tunnel wastewater treatment as claimed in claim 1, wherein a conical filter screen (3-4) and a stirring ball (3-6) located below the conical filter screen (3-4) are arranged in the automatic stirrer (3).
3. The novel tunnel wastewater treatment multi-stage fine filtration system as claimed in claim 2, wherein the water inlet pipes of the stirrers comprise a first water inlet pipe of the stirrer and a second water inlet pipe of the stirrer which are communicated with two sides of the automatic stirrer (3), and a third water inlet pipe of the stirrer which is communicated with the bottom of the automatic stirrer (3);
the first stirrer water inlet pipe and the second stirrer water inlet pipe are opposite in direction and are arranged in a tangent mode with the automatic stirrer (3) and used for enabling the wastewater to automatically rotate in the automatic stirrer (3) and driving the stirring balls (3-6) to rotate, and enabling the wastewater to be fully mixed with the coagulant added by the dosing device (18).
4. The novel multistage fine filtration system for tunnel wastewater treatment as claimed in claim 1, wherein the backwashing device comprises a siphon riser pipe (11) communicated with the water inlet pipe (6) extending above the multi-layer graded filter material (9), a siphon auxiliary pipe (13) communicated with the siphon riser pipe (11) at a position close to the end thereof, a siphon downcomer pipe (16) communicated with the end of the siphon riser pipe (11), and an air suction pipe (14) communicated with the siphon riser pipe (11) at a position connected with the siphon downcomer pipe (16) and extending obliquely downward;
and a water ejector is arranged at the junction of the siphon auxiliary pipe (13) and the suction pipe (14) and is used for pumping air at the upper ends of the suction pipe (14) and the siphon descending pipe (16) away to enable the siphon descending pipe (16) to form negative pressure.
5. The multi-stage fine filtration system for tunnel wastewater treatment as claimed in claim 4, wherein the top position of the connection between the siphon ascending pipe (11) and the siphon descending pipe (16) is further communicated with a back-washing timing pipe (15), and when the water level drops below the lower end pipe orifice of the back-washing timing pipe (15), the siphon of the back-washing device is broken and the back-washing is finished.
6. A novel tunnel wastewater treatment multi-stage fine filtration system as claimed in claim 5, further comprising a forced back-flushing pipe (12) connected to the upper end of the water ejector at the joint of the siphon auxiliary pipe (13) and the suction pipe (14), wherein a valve is arranged on the forced back-flushing pipe (12).
7. A novel tunnel wastewater treatment multi-stage fine filtration system according to any of the claims 4 to 6, characterized in that the end of the siphon downcomer (16) leads to the wastewater lift tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216279.7U CN216918855U (en) | 2022-01-26 | 2022-01-26 | Novel tunnel wastewater treatment multistage fine filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220216279.7U CN216918855U (en) | 2022-01-26 | 2022-01-26 | Novel tunnel wastewater treatment multistage fine filtration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216918855U true CN216918855U (en) | 2022-07-08 |
Family
ID=82264542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220216279.7U Active CN216918855U (en) | 2022-01-26 | 2022-01-26 | Novel tunnel wastewater treatment multistage fine filtration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216918855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215457A (en) * | 2022-07-19 | 2022-10-21 | 中国铁道科学研究院集团有限公司 | High-efficient filter equipment of railway tunnel construction waste water based on multilayer composite filter material |
-
2022
- 2022-01-26 CN CN202220216279.7U patent/CN216918855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215457A (en) * | 2022-07-19 | 2022-10-21 | 中国铁道科学研究院集团有限公司 | High-efficient filter equipment of railway tunnel construction waste water based on multilayer composite filter material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102774896A (en) | Integral purification device and method for particles in rain and sewage | |
| CN201334406Y (en) | Integrated water treatment device for surface water and sewage treatment | |
| CN111392920A (en) | High-efficient micro-nano air supporting sewage treatment plant | |
| CN216918855U (en) | Novel tunnel wastewater treatment multistage fine filtration system | |
| CN215462264U (en) | Full-automatic gravity type tunnel waste water treatment strainer | |
| CN206955795U (en) | Dirty tank car is taken out in a kind of sewage purification separation | |
| CN102755768A (en) | Sludge treatment device used at pressure type pumping and drainage outlet | |
| CN205762942U (en) | The dystopy heavy-metal contaminated soil drip washing equipment of continuously-running | |
| CN2476348Y (en) | Integral cyclone sand separating device | |
| CN201882993U (en) | Oily sewage settling treatment device | |
| CN208200649U (en) | Efficient magnetic force floatation purification device | |
| CN207726766U (en) | Flotation tank for water-oil separating | |
| CN215253139U (en) | Novel building site water cyclic utilization and water treatment system | |
| CN207153194U (en) | A kind of hydraulic cyclone and sewage disposal device | |
| CN107434299B (en) | Synchronous nitrification and denitrification filter | |
| CN202700154U (en) | Sludge treatment device at pressure type water pumping and drainage outlet | |
| KR20030059010A (en) | Solid material and grit matter separator | |
| CN211339064U (en) | Full-automatic high-efficient multistage sewage purification device | |
| CN204261396U (en) | Solid-liquid two-phase Gravity Separation tower in processing of stone sewage disposal and Treated sewage reusing | |
| CN107970679A (en) | Concrete mixing plant sewage recovering system | |
| CN211734054U (en) | Desulfurization waste water is used for high-efficient water treatment system that defroster washed | |
| CN211170019U (en) | Sedimentation tank for sewage treatment | |
| CN208964691U (en) | A kind of mine water deeply processing system | |
| CN210030390U (en) | Movable slurry preparation tank | |
| CN209053196U (en) | Bridge floor initial rainwater collection processing system implementing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221008 Address after: 102300 388, 2nd floor, 51 Sanjiadian East Street, Mentougou District, Beijing Patentee after: Beijing Woqi xindeshan Technology Co.,Ltd. Address before: 100062 707, Xincheng culture building, 11 Chongwenmenwai Street, Dongcheng District, Beijing Patentee before: Zhao Zhizhong |