CN106904676A - Source of sewage orifice plate grid backwashing system and its operation method - Google Patents
Source of sewage orifice plate grid backwashing system and its operation method Download PDFInfo
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- CN106904676A CN106904676A CN201710248084.4A CN201710248084A CN106904676A CN 106904676 A CN106904676 A CN 106904676A CN 201710248084 A CN201710248084 A CN 201710248084A CN 106904676 A CN106904676 A CN 106904676A
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- orifice plate
- pipe
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- 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
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of source of sewage orifice plate grid backwashing system and operation method, it is provided with submersible sewage pump, storage tank, water-supply-pipe and flush pipe, the submersible sewage pump is arranged in orifice plate grid downstream wastewater canal, and the water-supply-pipe is immersible pump to the feed pipe between the upper hose and storage tank and the flush pipe between the storage tank；Front filter is provided with upper hose, after-filter, booster pump, water pressure gauge, check-valves, the butterfly valve for sequentially connecting are provided with the feed pipe；The flush pipe is arranged on the top of orifice plate grid, the water inlet of the flush pipe is connected with the feed pipe, apopore is provided with the lower section tube wall of flush pipe, the apopore is externally provided with jet pipe and shower nozzle, the spiral hairbrush for scrubbing tube wall and discharge dirt is provided with flush pipe, blowdown drum is provided with the external end head of flush pipe.The present invention uses the sewage after the water channel filtering of extraction aperture panel grid lower section as water source, and sets perfect operating structure, realizes saving water resource and the energy, flexible and efficient operation and preferable developing result.
Description
Technical field
The present invention relates to a kind of sewage disposal processing equipment technology, specifically a kind of orifice plate grid backwashing system and its fortune
Row method.
Background technology
In-flow orifice plate grid is the important sewage filtration equipment of sewage treatment plant pretreating zone, and its filtering accuracy includes 1
~6mm apertures, belong to fine fack, ultra-fine grid, and its stable operation needs backwashing water and web plate is cleaned in time, cleaning
The grid slag of grid web plate inner side attachment, to ensure the discharge capacity of grid.
Existing orifice plate trellis system design mostly uses the reclaimed water of on-site, flushing water pressure design 0.6MPa, separate unit stream
Amount is about 6~12m3/ h, water consumption is big, and it is that orifice plate grid backwash storage tank is supplied to need dedicated line and constant pressure water supply pump
Water, in the Sewage Disposal without water resource of reclaimed water, then needs to use running water to rinse water source as orifice plate grid, increased grid fortune
Row cost, and need to consume substantial amounts of clean water resources, it is unfavorable for environmental protection and saves valuable water resource.Other existing hole
The design of panel grid backwashing equipment is relatively simple, and operation method is more extensive, and operation operation is more time-consuming, accordingly, it would be desirable to
Propose that a kind of structure is more perfect, more preferably, can more save water and energy effect environmentally friendly backwashing system and operation method.
The content of the invention
In order to solve the shortcoming of prior art described above, the present invention provides a kind of source of sewage orifice plate grid backwashing system
And its operation method, the apparatus and method use the sewage after the water channel filtering of extraction aperture panel grid lower section, with as backwash
The technical scheme at water source, and perfect operating structure is set, realize saving water resource and the energy, flexible and efficient operation and ideal
Developing result.
The present invention uses following technical scheme：
A kind of source of sewage orifice plate grid backwashing system, is provided with submersible sewage pump, storage tank, water-supply-pipe and flush pipe, its feature
It is：The submersible sewage pump is arranged in orifice plate grid downstream wastewater canal, and the water-supply-pipe is immersible pump between the storage tank
Feed pipe between upper hose and storage tank and the flush pipe；Front filter is provided with upper hose, on the feed pipe
It is provided with after-filter, booster pump, water pressure gauge, check-valves, the butterfly valve for sequentially connecting；The flush pipe is arranged on the upper of orifice plate grid
Side, the water inlet of the flush pipe is connected with the feed pipe, apopore is provided with the lower section tube wall of flush pipe, outside the apopore
Jet pipe and shower nozzle are provided with, the spiral hairbrush for scrubbing tube wall and discharge dirt is provided with flush pipe, set in the external end head of flush pipe
There is blowdown drum.
The present invention is further improved and the additional project of implementation is：
The submersible sewage pump is reamer submersible sewage pump, can be crushed the large granular impurity in sewage, prevents submersible sewage pump from winding or stifled
Plug filter.
The front filter and after-filter are hand brush y-type filter, and the butterfly valve is Hand-operated butterfly valve or remote control butterfly
Valve, the spiral hairbrush is hand or remote control electric formula, and manual ball valve is provided between the blowdown drum and flush pipe outlet；
Flexible coupling is provided between storage tank and booster pump.
Water-flow rotary filter mantle is provided with the outside of the water inlet of the submersible sewage pump, the filtering is covered with circulating water promotion
Impeller and a filter screen coaxial with the impeller, the filter screen can leach dirt, prevent it from entering submersible sewage pump, and impeller drives filter
Net is rotated, and dirt is blocked filter screen.
The operation method of above-mentioned source of sewage orifice plate grid backwashing system：It is characterized in that being provided with following steps：
6) submersible sewage pump is opened, storage tank water filling is given；
7) after storage tank water is full, butterfly valve is opened, opens booster pump flushing operation and start；
8) once preceding Y filters and rear Y filters were opened every 1-3 hours, discharges sludge, then shut；
9) hand-operated spiral hairbrush and deslagging tank were opened every 2-5 hours, rotates hand-operated spiral hairbrush, closed after deslagging is complete
Deslagging tank；
10) run when according in sewage dirt number, regulation submersible sewage pump and booster pump flow and pressure, while regulation
Open the interval time of Y-filter and spiral hairbrush, the normal operation with orifice plate grid is the foundation of regulation.
Above-mentioned orifice plate grid rinse-system is further improved and the additional project of implementation is：
Controller is additionally provided with, the power switch of submersible sewage pump and the power switch of booster pump are equipped with remote control execution unit；
The Y-filter and blowdown drum, butterfly valve are provided with remote control switch；Level sensor is provided with the storage tank, in Y shape mistake
The outlet side of filter is provided with flow sensor；The controller and the power switch of the submersible sewage pump and the power switch of booster pump
Water level in the remote control switch, the storage tank that are set on remote control execution unit, the Y-filter and blowdown drum, butterfly valve is passed
The run switch of sensor, the flow sensor of the outlet side of Y-filter, water pressure gauge and orifice plate grid carries out signal and control
Connection；Its control structure is：When the run switch of orifice plate grid is opened to be run, controller control submersible sewage pump starts fortune
OK, when water level is full in storage tank, booster pump is opened, butterfly valve is opened when hydraulic pressure reaches desirable value in feed pipe, start to rinse
Orifice plate grid runs；When the water flow signal of the flow sensor output of the outlet side of Y filters is less than sets flow value, control
System opens Y-filter deslagging, after discharge setting time, closes filter；By the operation of preheating setting time control spiral hairbrush simultaneously
Open blowdown drum discharge sludge.
Be additionally provided with solar power generation and wind power generation component, and be provided with the battery of charging connection therewith, the battery with
The submersible sewage pump, booster pump, sensor and above-mentioned other electric components are powered connection.
The controller is provided with remote wireless signals transmission and receiver module, by transmission of wireless signals and the monitoring for setting
Center is attached, by the operating state signal of orifice plate grid rinse-system by transmission of wireless signals be sent to Surveillance center and
Operator on duty's mobile phone, and receive the monitoring signal of Surveillance center.
The further perfect operation method of above-mentioned further perfect source of sewage orifice plate grid backwashing system, it is special
Levy is to have steps of：
1) power switch or this will electric network source switch of the battery of solar energy and wind energy component are opened；
2) open controller, by controller human-computer interaction interface set water pressure gauge normal operating value 0.5-1.0MPa,
Filter outlet side water-carrying capacity normal value 6-12m3/ h, the interval time 1-5h of spiral hairbrush, and each run time
1-5min, connects the wireless connection with Surveillance center；
3) mobile phone on duty is opened；
4) controller run switch is opened by controller human-computer interaction interface, is started when controller detects orifice plate grid
Operation then starts submersible sewage pump and brings into operation；
5) hydraulic pressure and water-carrying capacity control numerical value can be at any time adjusted in running, when adjustment filter and deslagging tank deslagging run
Between interval and each run time, by ensure orifice plate grid normally operation be defined；
6) operator on duty note at any time controller transmission backwashing system health information, when a failure occurs it and
When process.
Source of sewage orifice plate grid backwashing system of the invention, has the advantages that：
1st, rinsed using filter sewage, save a large amount of reclaimed waters and originally water resource, and reduce sewage discharge and improvement, significantly
Beneficial to water-saving and environmental protection, expense is reduced；
2nd, using Multi-channel filtering structure, design structure is perfect, and operation is unobstructed, and operational efficiency is high, and backwash effect is good；Safeguard
Workload is small, and operating cost is low；
3rd, automatic control system is provided with, automatic running is realized, running status is reported and submitted automatically, it is safe and reliable, and can realize remote
Range monitoring, advanced management；
4th, making full use of for solar wind-energy is cleaned, the effect of energy-conserving and environment-protective is substantially increased, and be easy to countryside, work
Ground, the popularization and application of remote districts.
Brief description of the drawings
Fig. 1 is the structural representation of flush pipe of the invention.
Fig. 2 is overall structure diagram of the invention.
Specific embodiment
The present invention is described further for Structure Figure and embodiment below：
Embodiment 1：Referring to accompanying drawing, a kind of source of sewage orifice plate grid backwashing system, be provided with a reamer type submersible sewage pump 1,
One storage tank, 4, flush pipe 11；Submersible sewage pump is arranged in orifice plate grid downstream wastewater canal, and immersible pump is between storage tank
Upper hose 3 is provided with, feed pipe 10 is provided between storage tank and flush pipe；Two Y shape front filters 2 are provided with upper hose,
Feed pipe is provided with Y shape after-filter 6, booster pump 8, water pressure gauge 9, check-valves 7, the butterfly valve 5 for sequentially connecting；Flush pipe is arranged on
The top of orifice plate grid, the water inlet of the flush pipe is connected with feed pipe, is provided with diameter 2mm's on the lower section tube wall of flush pipe
Apopore, the apopore is externally provided with jet pipe and shower nozzle 13, and the hand power screw for scrubbing tube wall and discharge dirt is provided with flush pipe
Hairbrush 12, blowdown drum 14 is provided with the external end head of flush pipe.
Water-flow rotary filter mantle is provided with the outside of the water inlet of the submersible sewage pump, the filtering is covered with circulating water promotion
Impeller and a filter screen coaxial with the impeller, the filter screen can leach dirt, prevent it from entering submersible sewage pump, and impeller drives filter
Net is rotated, and dirt is blocked filter screen.
The operation method of the rinse-system of above-mentioned orifice plate grid：It is characterized in that being provided with following steps：
1) submersible sewage pump is opened, storage tank water filling is given；
2) after storage tank water is full, butterfly valve is opened, opens booster pump flushing operation and start；
3) once preceding Y filters and rear Y filters were opened every 3 hours, discharges sludge, then shut；
4) hand-operated spiral hairbrush and deslagging tank were opened every 5 hours, rotates hand-operated spiral hairbrush, deslagging is closed after deslagging is complete
Tank；
5) run when according in sewage dirt number, regulation submersible sewage pump and booster pump flow and pressure, while regulation
Open the interval time of Y-filter and spiral hairbrush, the normal operation with orifice plate grid is the foundation of regulation.
Embodiment 2：A kind of source of sewage orifice plate grid backwashing system, is improved on the basis of example structure：Separately
Controller is externally provided with, the spiral hairbrush is changed to remote control electric, and the power switch of submersible sewage pump and the power switch of booster pump are all provided with
There is remote control execution unit；The Y-filter and blowdown drum, butterfly valve are provided with remote control switch；Water is provided with the storage tank
Level sensor, flow sensor is provided with the outlet side of Y-filter；The power switch of the controller and the submersible sewage pump and
It is the remote control switch that is set on the power switch remote control execution unit of booster pump, the Y-filter and blowdown drum, butterfly valve, described
The operation of the flow sensor, water pressure gauge and orifice plate grid of the outlet side of level sensor, Y-filter in storage tank is opened
Close and the remote control electric part of spiral hairbrush carries out signal and control connection；Its control structure is：When the operation of orifice plate grid is opened
When pass opening is run, controller control submersible sewage pump brings into operation, and when water level is full in storage tank, opens booster pump, works as confession
Butterfly valve is opened when hydraulic pressure reaches desirable value in water pipe, starts the operation of flushing hole panel grid；When the flow of the outlet side of Y filters is passed
When the water flow signal of sensor output is less than flow value is set, Y-filter deslagging is opened in control, after discharge setting time, is closed
Close filter；Blowdown drum discharge sludge is run and opened by preheating setting time control spiral hairbrush.
Be additionally provided with solar power generation and wind power generation component, and be provided with the battery of charging connection therewith, the battery with
The submersible sewage pump, booster pump, sensor and above-mentioned other electric components are powered connection.The controller is provided with long distance wireless
Signal is transmitted and receiver module, is attached with the Surveillance center for setting by transmission of wireless signals, and orifice plate grid is rinsed into system
The operating state signal of system is sent to Surveillance center and operator on duty's mobile phone by transmission of wireless signals, and receives Surveillance center
Monitoring signal.
The operation method of above-mentioned improved orifice plate grid backwashing system, there is following steps：
1) power switch or this will electric network source switch of the battery of solar energy and wind energy component are opened；
2) open controller, by controller human-computer interaction interface set water pressure gauge normal operating value 0.5-1.0MPa,
Filter outlet side water-carrying capacity normal value 6-12m3/ h, the interval time 5h of spiral hairbrush, and each run time
3min, connects the wireless connection with Surveillance center；
3) mobile phone on duty is opened；
4) controller run switch is opened by controller human-computer interaction interface, is started when controller detects orifice plate grid
Operation then starts submersible sewage pump and brings into operation；
5) hydraulic pressure and water-carrying capacity control numerical value can be at any time adjusted in running, when adjustment filter and deslagging tank deslagging run
Between interval and each run time, by ensure orifice plate grid normally operation be defined；
6) operator on duty notes the running state information that controller is reported and submitted at any time, when a failure occurs it treatment in time.
, by the trial operation of month, operational effect is very good, and more past like product is significantly improved for above-described embodiment
Developing result, saves the thousands of units of water rate in one month.The embodiment for being provided with controller has only used several operators on duty, realizes
Automatic safe runs, and energy-saving and water-saving effect is fairly obvious.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can under the scope of without prejudice to basic technical scheme of the invention, above-described embodiment is modified or
Change.All similar equivalent modifications or change, should be covered by claim of the invention.
Claims (9)
1. a kind of source of sewage orifice plate grid backwashing system, is provided with submersible sewage pump, storage tank, water-supply-pipe and flush pipe, it is characterized in that：
The submersible sewage pump (1) is arranged in orifice plate grid downstream wastewater canal, and the water-supply-pipe is immersible pump between the storage tank (4)
Upper hose (3) and the feed pipe (10) between storage tank and the flush pipe (11)；Front filter is provided with upper hose
(2) after-filter (6), booster pump (8), water pressure gauge (9), check-valves (7), the butterfly for sequentially connecting, are provided with the feed pipe
Valve (5)；The flush pipe is arranged on the top of orifice plate grid, and the water inlet of the flush pipe is connected with the feed pipe, is rinsing
The lower section tube wall of pipe is provided with apopore, and the apopore is externally provided with jet pipe and shower nozzle (13), and scrub tube wall is provided with flush pipe
With the spiral hairbrush (12) of discharge dirt, blowdown drum (14) is provided with the external end head of flush pipe.
2. backwashing system according to claim 1, it is characterized in that：The submersible sewage pump is reamer submersible sewage pump, can be by sewage
In large granular impurity crush, prevent submersible sewage pump wind or block filter.
3. backwashing system according to claim 1, it is characterized in that：The front filter and after-filter are hand brush
Y-type filter, the butterfly valve be Hand-operated butterfly valve or remote control butterfly valve, the spiral hairbrush be hand or remote control electric formula, it is described
Manual ball valve is provided between blowdown drum and flush pipe outlet；Flexible coupling is provided between storage tank and booster pump.
4. backwashing system according to claim 1, it is characterized in that：Hydrodynamic(al) is provided with the outside of the water inlet of the submersible sewage pump
Rotary filtering cover, the filtering is covered with the impeller and a filter screen coaxial with the impeller of circulating water promotion, the filter screen energy handle
Dirt is leached, and prevents it from entering submersible sewage pump, and impeller band electric filter is rotated, and dirt is blocked filter screen.
5. the operation method of the rinse-system according to one of the claim 1-4 above-mentioned orifice plate grids：It is characterized in that being provided with
Following steps：
1) submersible sewage pump is opened, storage tank water filling is given；
2) after storage tank water is full, butterfly valve is opened, opens booster pump flushing operation and start；
3) once preceding Y filters and rear Y filters were opened every 1-3 hours, discharges sludge, then shut；
4) hand-operated spiral hairbrush and deslagging tank were opened every 2-5 hours, rotates hand-operated spiral hairbrush, deslagging is closed after deslagging is complete
Tank；
5) run when according in sewage dirt number, regulation submersible sewage pump and booster pump flow and pressure, while adjust open Y
The interval time of shape filter and spiral hairbrush, the normal operation with orifice plate grid is the foundation of regulation.
The additional project that above-mentioned orifice plate grid rinse-system is further improved and implemented.
6. the backwashing system according to claim 1-4, it is characterized in that：Controller is additionally provided with, the power supply of submersible sewage pump is opened
Close and the power switch of booster pump is equipped with remote control execution unit；The Y-filter and blowdown drum, butterfly valve are provided with remote control and open
Close；Level sensor is provided with the storage tank, flow sensor is provided with the outlet side of Y-filter；The controller
Power switch remote control execution unit, the Y-filter and blowdown drum, butterfly with the power switch of the submersible sewage pump and booster pump
Level sensor, the flow sensor of the outlet side of Y-filter, water in the remote control switch, the storage tank that are set on valve
The run switch of pressure table and orifice plate grid carries out signal and control is connected；Its control structure is：When the operation of orifice plate grid is opened
When pass opening is run, controller control submersible sewage pump brings into operation, and when water level is full in storage tank, opens booster pump, works as confession
Butterfly valve is opened when hydraulic pressure reaches desirable value in water pipe, is opened and is cheated the operation of flushing hole panel grid；When the flow of the outlet side of Y filters is passed
When the water flow signal of sensor output is less than flow value is set, Y-filter deslagging is opened in control, after discharge setting time, is closed
Close filter；Blowdown drum discharge sludge is run and opened by preheating setting time control spiral hairbrush.
7. backwashing system according to claim 6, it is characterized in that：Solar power generation and wind power generation component are additionally provided with,
And it is provided with the battery of charging connection therewith, the battery and the submersible sewage pump, booster pump, sensor and above-mentioned other electrical parts
Part is powered connection.
8. backwashing system according to claim 8, it is characterized in that：The controller be provided with remote wireless signals transmission and
Receiver module, is attached, by the operation shape of orifice plate grid rinse-system by transmission of wireless signals with the Surveillance center for setting
State signal is sent to Surveillance center and operator on duty's mobile phone by transmission of wireless signals, and receives the monitoring signal of Surveillance center.
9. the operation method of orifice plate grid according to claim 9, it is characterized in that having steps of：
1) power switch or this will electric network source switch of the battery of solar energy and wind energy component are opened；
2) controller is opened, normal operating value 0.5-1.0MPa, the filtering of water pressure gauge is set by controller human-computer interaction interface
Device outlet side water-carrying capacity normal value 6-12m3/ h, the interval time 1-5h of spiral hairbrush, and each run time 1-
5min, connects the wireless connection with Surveillance center.
3) mobile phone on duty is opened；
4) controller run switch is opened by controller human-computer interaction interface, is brought into operation when controller detects orifice plate grid
Then start submersible sewage pump to bring into operation；
5) hydraulic pressure and water-carrying capacity control numerical value can be at any time adjusted in running, between adjustment filter and deslagging tank deslagging run time
Every with each run time, by ensure orifice plate grid normally operation be defined；
6) operator on duty notes controller warning message at any time, is processed in time when alarming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248084.4A CN106904676B (en) | 2017-04-17 | 2017-04-17 | Sewage source pore plate grating backwashing system and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248084.4A CN106904676B (en) | 2017-04-17 | 2017-04-17 | Sewage source pore plate grating backwashing system and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106904676A true CN106904676A (en) | 2017-06-30 |
| CN106904676B CN106904676B (en) | 2019-12-24 |
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ID=59210583
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248084.4A Active CN106904676B (en) | 2017-04-17 | 2017-04-17 | Sewage source pore plate grating backwashing system and operation method thereof |
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| CN108837586A (en) * | 2018-08-30 | 2018-11-20 | 环能科技股份有限公司 | A kind of back purge system and back-purge system with self-cleaning function |
| CN109026756A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump with balance mechanism |
| CN109236681A (en) * | 2018-09-19 | 2019-01-18 | 时飞龙 | A kind of proof submersible sand discharging pump with mechanism of drifting along |
| CN111287987A (en) * | 2018-09-19 | 2020-06-16 | 时飞龙 | Submersible sewage pump with water inlet filtering mechanism |
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| CN107597674A (en) * | 2017-09-26 | 2018-01-19 | 湖南磊鑫新材料科技有限公司 | A kind of log washer |
| CN107597674B (en) * | 2017-09-26 | 2020-10-20 | 湖南磊鑫新材料科技有限公司 | Ore washer |
| CN108837586A (en) * | 2018-08-30 | 2018-11-20 | 环能科技股份有限公司 | A kind of back purge system and back-purge system with self-cleaning function |
| CN109026756A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump with balance mechanism |
| CN109236681A (en) * | 2018-09-19 | 2019-01-18 | 时飞龙 | A kind of proof submersible sand discharging pump with mechanism of drifting along |
| CN111287987A (en) * | 2018-09-19 | 2020-06-16 | 时飞龙 | Submersible sewage pump with water inlet filtering mechanism |
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| CN106904676B (en) | 2019-12-24 |
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