CN105944608A - Solar photovoltaic intelligent reagent adding device - Google Patents
Solar photovoltaic intelligent reagent adding device Download PDFInfo
- Publication number
- CN105944608A CN105944608A CN201610556661.1A CN201610556661A CN105944608A CN 105944608 A CN105944608 A CN 105944608A CN 201610556661 A CN201610556661 A CN 201610556661A CN 105944608 A CN105944608 A CN 105944608A
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- CN
- China
- Prior art keywords
- plc
- dissolving tank
- reagent
- drug dissolving
- dissolution tank
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2111—Flow rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/32055—Type of drive by using solar energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—Treatment of water, waste water or sewage
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a solar photovoltaic intelligent reagent adding device which comprises a reagent dissolution tank, a stirrer, a base, a metering pump, a distribution cabinet, a PLC, an inverter, a dissolution battery pack, a combiner box and a solar photovoltaic battery cell. The reagent dissolution tank is arranged on the upper surface of the base. The upper end of the reagent dissolution tank is provided with a water inlet and a reagent put-in opening which are formed in the two sides of the stirrer respectively. A liquid level meter is arranged in the reagent dissolution tank. A liquid level meter is arranged outside the reagent dissolution tank. A drain outlet is formed in the bottom end of the reagent dissolution tank. The stirrer is arranged at the upper end of the reagent dissolution tank. The stirrer is electrically connected with the distribution cabinet and the PLC. The stirrer is provided with an impeller which extends into the reagent dissolution tank. The metering pump is connected with the reagent dissolution tank. The solar photovoltaic intelligent reagent adding device saves electric charge, reduces cost, is suitable for places without electricity supply, and has a high and low liquid level alarm function and an automatic reagent put-in completion function.
Description
Technical field
The present invention relates to environment-protective process apparatus field, be specifically related to a kind of photovoltaic Intelligent medicine adding device.
Background technology
Along with industrialized development and the progress of science and technology, environmental problem is the most increasingly severe, and government and individual can be for
Environmental problem uses various environmental protection medicaments to improve environment.Chemicals dosing plant is Water purification and the important of sewage disposal sets
Standby.Agent adding device for treatment of water include drug dissolving tank, agitator, liquidometer, relief valve, check-valves, Pressure gauge, filter, buffer,
Pipeline, valve, base, dosing pump and electric control system, put into agitating solution case by quantitative medicament on demand and stir
Mixing dissolving, deliver to toss area by dosing pump again after dissolving, the size of chemical feeding quantity can be by metering throw of pump and frequency
Rate is controlled.Existing it is not provided that scarce medicine is reported to the police, it is impossible to automatically adjust according to the size of medicament demand, need hands
Dynamic regulation, existing chemicals dosing plant needs electrical network or electromotor to provide power supply, cannot use in the place not having supply of electric power,
This reduces production efficiency.Existing chemicals dosing plant is not provided that scarce medicine is reported to the police；Can not carry out according to the size of medicament demand
It is automatically adjusted；And cannot cannot use in the place not having supply of electric power.
For above-mentioned deficiency, need design and a kind of photovoltaic Intelligent medicine adding device of exploitation, it is possible to supply above-mentioned respectively
Individual shortcoming.
Summary of the invention
In order to solve the problem of above-mentioned existence, the present invention provides a kind of photovoltaic Intelligent medicine adding device.
The present invention is a kind of photovoltaic Intelligent medicine adding device, including drug dissolving tank, blender, base, dosing pump, distribution
Cabinet, PLC, inverter, accumulator battery, header box and solar photovoltaic cell panel, described drug dissolving tank is arranged on base
Surface, the upper end of described drug dissolving tank is provided with water inlet and dispensing mouth, described water inlet and dispensing mouth and is separately positioned on blender
Both sides, described drug dissolving tank be internally provided with liquidometer, the outside of described drug dissolving tank is provided with liquidometer, the end of described drug dissolving tank
End be provided with sewage draining exit, described blender is arranged on the upper end of drug dissolving tank, described blender respectively with power distribution cabinet and PLC
Being electrically connected with, described blender is provided with impeller, described impeller stretches in drug dissolving tank, and described dosing pump is connected with drug dissolving tank,
Described dosing pump is electrically connected with power distribution cabinet and PLC respectively, and described header box is connected with solar photovoltaic cell panel, institute
Stating header box to be electrically connected with each other with accumulator battery and inverter, described inverter is electrically connected with power distribution cabinet, described dosing pump
On be provided with relief valve and check-valves, described liquidometer is provided with valve, described PLC connects effusion meter, buffering
Device and scopometer.
Further, the design of the built-in function system of described photovoltaic Intelligent medicine adding device is as follows:
A. the design of electric control system:
Solar-energy photo-voltaic cell array generator provides electric energy by two ways；The first by header box and inverter is directly
Electrical equipment is powered；Another kind too can cell panel generated electricity can be for battery charging, at rainy weather or night, by storing
Set of cells is that electrical equipment is powered.
The design of b.PLC control system:
Liquid level is detected by liquidometer, and sends two position warning, and liquid level signal is transferred to PLC；PLC controls
Device, according to the signal of liquidometer, starts dispensing, adds water and stir；Ensure that the pharmaceutical quantities in chemicals dosing plant meets dispensing consumption, stream
Gauge and scopometer are by incoming for signal PLC；Automatically calculated added amount of chemical demand by PLC, PLC sends action
Instruction, adjusts metering throw of pump and frequency, completes the automatic adjustment of added amount of chemical.
Compared with prior art, the invention has the beneficial effects as follows: this apparatus structure is simple, and reasonable in design, detachability is good,
It is easily installed and changes；Failure rate is low, safety in utilization and good operation stability, owing to this device uses solar-energy photo-voltaic cell
Plate converts the solar into electric energy, thus powers for battery charging and electrical equipment, has saved the electricity charge, it is adaptable to do not have electricity
The area of power supply；Owing to this device uses liquidometer to carry out two position warning, can complete automatic chemical dosing, add water, stirring etc.
Complete molten medicine process；Owing to this device uses effusion meter and scopometer, it is automatically performed the complete of adding of agent by the signal of feedback
Process, reduces the load of artificial frequent operation, decreases number of workers, saves added amount of chemical, saves cost of water treatment.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of photovoltaic Intelligent medicine adding device.
Fig. 2 is the front view of the grug feeding jar of photovoltaic Intelligent medicine adding device.
Fig. 3 is the structured flowchart of the electric control system within photovoltaic Intelligent medicine adding device.
Fig. 4 is the structured flowchart of the PLC control system within photovoltaic Intelligent medicine adding device.
Wherein: 1, drug dissolving tank, 2, blender, 3, dispensing mouth, 4, water inlet, 5, liquidometer, 6, impeller, 7, liquidometer, 8,
Sewage draining exit, 9, device pedestal, 10, dosing pump, 11, power distribution cabinet, 12, switch board, 13, inverter, 14, accumulator battery, 15, conflux
Case, 16, solar photovoltaic cell panel, 17, relief valve, 18, check-valves, 19, valve, 20, effusion meter, 21, scopometer.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
A kind of photovoltaic Intelligent medicine adding device as depicted in figs. 1 and 2, including drug dissolving tank 1, blender 2, base 9,
Dosing pump 10, power distribution cabinet 11, PLC 12, inverter 13, accumulator battery 14, header box 15 and solar photovoltaic cell panel
16, described drug dissolving tank 1 is arranged on base 9 upper surface, and the upper end of described drug dissolving tank is provided with water inlet 4 and dispensing mouth 3, described in enter
The mouth of a river 4 and dispensing mouth 3 are separately positioned on blender 2 both sides, described drug dissolving tank 1 be internally provided with liquidometer 5, described drug dissolving tank
Outside be provided with liquidometer 7, the bottom of described drug dissolving tank 1 is provided with sewage draining exit 8, and described blender 2 is arranged on drug dissolving tank 1
Upper end, described blender 2 is electrically connected with power distribution cabinet 11 and PLC 12 respectively, and described blender 2 is provided with impeller 6,
Described impeller 6 stretches in drug dissolving tank 1, and described dosing pump 10 is connected with drug dissolving tank 1, described dosing pump 10 respectively with power distribution cabinet 11 and
PLC 12 is electrically connected with, and described header box 15 is connected with solar photovoltaic cell panel 16, described header box 15 and accumulator
Group 14 and inverter 13 are electrically connected with each other, and described inverter 13 is electrically connected with power distribution cabinet 11, and described dosing pump 10 is arranged
Have relief valve 17 and check-valves 18, described liquidometer 7 be provided with valve 19, described PLC 12 connect have effusion meter 20,
Buffer (not shown) and scopometer 21.
The design of the built-in function system of described photovoltaic Intelligent medicine adding device is as follows:
A. the design of electric control system:
Solar-energy photo-voltaic cell array generator provides electric energy by two ways；The first by header box and inverter is directly
Electrical equipment is powered；Another kind of solar panel is generated electricity and at rainy weather or night, can be passed through for battery charging
Accumulator battery is that electrical equipment is powered.
The design of b.PLC control system:
Liquid level is detected by liquidometer, and sends two position warning, and liquid level signal is transferred to PLC；PLC controls
Device, according to the signal of liquidometer, starts dispensing, adds water and stir；Ensure that the pharmaceutical quantities in chemicals dosing plant meets dispensing consumption, stream
Gauge and scopometer are by incoming for signal PLC；Automatically calculated added amount of chemical demand by PLC, PLC sends action
Instruction, adjusts metering throw of pump and frequency, completes the automatic adjustment of added amount of chemical.
Operation principle: solar photovoltaic cell panel 16 generates electricity and provides electric energy by two ways, the first is directly by converging
Stream case 15 and inverter 13 are powered for electrical equipment, and another kind of solar photovoltaic cell panel 16 is generated electricity and can fill for accumulator battery 14
Electricity, at rainy weather or night, is powered for electrical equipment by accumulator battery 14.Liquid level signal is transferred to PLC by liquidometer 5
Controller 12, by PLC 12 according to the signal of liquidometer 7, starts dispensing, adds water and stir, it is ensured that in chemicals dosing plant
Pharmaceutical quantities meets dispensing consumption.Effusion meter and scopometer, by incoming for signal PLC 12, are calculated automatically by PLC 12
Added amount of chemical demand, PLC 12 sends action command, adjusts stroke and the frequency of dosing pump 10, completes adding of agent
The automatic adjustment of amount.
Compared with prior art, the invention has the beneficial effects as follows: this apparatus structure is simple, reasonable in design, detachability
Good, it is simple to install and change；Failure rate is low, safety in utilization and good operation stability, owing to this device uses photovoltaic
Cell panel converts the solar into electric energy, thus powers for battery charging and electrical equipment, has saved the electricity charge, it is adaptable to do not have
There is the area of supply of electric power；Owing to this device uses liquidometer to carry out two position warning, automatic chemical dosing can be completed, add water, stir
Mix etc. and to complete molten medicine process；Owing to this device uses effusion meter and scopometer, it is automatically performed adding of agent by the signal of feedback
Overall process, reduce the load of artificial frequent operation, decrease number of workers, save added amount of chemical, save water and be processed into
This.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
The change expected without creative work or replacement, all should contain within protection scope of the present invention.Therefore, the present invention
Protection domain should be as the criterion with the protection domain that claims are limited.
Claims (2)
1. a photovoltaic Intelligent medicine adding device, it is characterised in that: include drug dissolving tank (1), blender (2), base (9),
Dosing pump (10), power distribution cabinet (11), PLC (12), inverter (13), accumulator battery (14), header box (15) and the sun
Energy photovoltaic battery panel (16), described drug dissolving tank (1) is arranged on base (9) upper surface, and the upper end of described drug dissolving tank is provided with into water
Mouth (4) and dispensing mouth (3), described water inlet (4) and dispensing mouth (3) are separately positioned on blender (2) both sides, described drug dissolving tank
(1) be internally provided with liquidometer (5), the outside of described drug dissolving tank is provided with liquidometer (7), the bottom of described drug dissolving tank (1)
Being provided with sewage draining exit (8), described blender (2) is arranged on the upper end of drug dissolving tank (1), described blender (2) respectively with power distribution cabinet
(11) being electrically connected with PLC (12), described blender (2) is provided with impeller (6), described impeller (6) stretches into molten medicine
In tank (1), described dosing pump (10) is connected with drug dissolving tank (1), and described dosing pump (10) controls with power distribution cabinet (11) and PLC respectively
Device (12) is electrically connected with, and described header box (15) is connected with solar photovoltaic cell panel (16), described header box (15) and electric power storage
Pond group (14) and inverter (13) are electrically connected with each other, and described inverter (13) is electrically connected with power distribution cabinet (11), described metering
Being provided with relief valve (17) and check-valves (18) on pump (10), described liquidometer (7) is provided with valve (19), described PLC is controlled
Device processed (12) connects effusion meter (20), buffer (not shown) and scopometer (21).
2. photovoltaic Intelligent medicine adding device as claimed in claim 1, it is characterised in that: described photovoltaic intelligence adds
The design of the built-in function system of medicine device is as follows:
A. the design of electric control system:
Solar-energy photo-voltaic cell array generator provides electric energy by two ways；The first by header box and inverter is directly
Electrical equipment is powered；Another kind can be generated electricity and at rainy weather or night, can be passed through for battery charging by cell panel very much
Accumulator battery is that electrical equipment is powered:
The design of b.PLC control system:
Liquid level is detected by liquidometer, and sends two position warning, and liquid level signal is transferred to PLC；PLC controls
Device, according to the signal of liquidometer, starts dispensing, adds water and stir；Ensure that the pharmaceutical quantities in chemicals dosing plant meets dispensing consumption, stream
Gauge and scopometer are by incoming for signal PLC；Automatically calculated added amount of chemical demand by PLC, PLC sends action
Instruction, adjusts metering throw of pump and frequency, completes the automatic adjustment of added amount of chemical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556661.1A CN105944608A (en) | 2016-07-15 | 2016-07-15 | Solar photovoltaic intelligent reagent adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556661.1A CN105944608A (en) | 2016-07-15 | 2016-07-15 | Solar photovoltaic intelligent reagent adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105944608A true CN105944608A (en) | 2016-09-21 |
Family
ID=56900042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610556661.1A Pending CN105944608A (en) | 2016-07-15 | 2016-07-15 | Solar photovoltaic intelligent reagent adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105944608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927557A (en) * | 2017-04-14 | 2017-07-07 | 宿迁万康新材料有限公司 | Light stabilizer sewage disposal chemicals dosing plant |
| CN107500370A (en) * | 2017-08-07 | 2017-12-22 | 中国水利水电科学研究院 | A kind of community's sewage disposal system |
Citations (5)
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|---|---|---|---|---|
| CN201470161U (en) * | 2009-07-30 | 2010-05-19 | 煤炭科学研究总院杭州环境保护研究所 | Mine water purifying treatment automatic dosing device |
| CN101811763A (en) * | 2010-04-16 | 2010-08-25 | 贵州绿色环保设备工程有限责任公司 | Solar photovoltaic independently-powered integrated water-purifying device |
| CN202175591U (en) * | 2011-06-28 | 2012-03-28 | 南京大洋冷却塔股份有限公司 | Automatic chemical adding device for circulation water system |
| CN203998997U (en) * | 2014-04-16 | 2014-12-10 | 湖南智和环保科技有限公司 | Automatically control dosing and add alum machine |
| CN205672834U (en) * | 2016-06-14 | 2016-11-09 | 成都锦汇绿源环保技术有限公司 | A kind of photovoltaic Intelligent medicine adding device |
-
2016
- 2016-07-15 CN CN201610556661.1A patent/CN105944608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201470161U (en) * | 2009-07-30 | 2010-05-19 | 煤炭科学研究总院杭州环境保护研究所 | Mine water purifying treatment automatic dosing device |
| CN101811763A (en) * | 2010-04-16 | 2010-08-25 | 贵州绿色环保设备工程有限责任公司 | Solar photovoltaic independently-powered integrated water-purifying device |
| CN202175591U (en) * | 2011-06-28 | 2012-03-28 | 南京大洋冷却塔股份有限公司 | Automatic chemical adding device for circulation water system |
| CN203998997U (en) * | 2014-04-16 | 2014-12-10 | 湖南智和环保科技有限公司 | Automatically control dosing and add alum machine |
| CN205672834U (en) * | 2016-06-14 | 2016-11-09 | 成都锦汇绿源环保技术有限公司 | A kind of photovoltaic Intelligent medicine adding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927557A (en) * | 2017-04-14 | 2017-07-07 | 宿迁万康新材料有限公司 | Light stabilizer sewage disposal chemicals dosing plant |
| CN107500370A (en) * | 2017-08-07 | 2017-12-22 | 中国水利水电科学研究院 | A kind of community's sewage disposal system |
| CN107500370B (en) * | 2017-08-07 | 2024-02-06 | 中国水利水电科学研究院 | Community sewage treatment system |
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Application publication date: 20160921 |
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