CN105652849A - Time-shared agent feeding control pipeline for wastewater treatment - Google Patents
Time-shared agent feeding control pipeline for wastewater treatment Download PDFInfo
- Publication number
- CN105652849A CN105652849A CN201610201600.3A CN201610201600A CN105652849A CN 105652849 A CN105652849 A CN 105652849A CN 201610201600 A CN201610201600 A CN 201610201600A CN 105652849 A CN105652849 A CN 105652849A
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- China
- Prior art keywords
- control pipeline
- wastewater treatment
- pipe
- sharing control
- valve
- 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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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 claims description 59
- 239000007788 liquid Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000033228 biological regulation Effects 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
-
- 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
- B01F35/2113—Pressure
-
- 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
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2211—Amount of delivered fluid during a period
-
- 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
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/833—Flow control by valves, e.g. opening intermittently
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention belongs to the technical field of environment protection and relates to a time-shared agent feeding control pipeline for wastewater treatment. The time-shared agent feeding control pipeline comprises an agent distribution tank, a backflow pipe and an agent feeding pipe, the backflow pipe is connected from the lower portion of the agent distribution tank to the top of the agent distribution tank, and the agent feeding pipe is branched from a point of the backflow pipe. A plurality of branch feeding pipes are branched from the agent feeding pipe, a pneumatic valve is arranged on each branch feeding pipe, an air inlet of each pneumatic valve is connected to an air distribution device which comprises a shell and an inner core, and the inner core is pivoted into the shell which is provided with a plurality of air outlets connected with the pneumatic valves. The inner core is provided with an air supply passage, and the air supply passage is provided with an outlet which can be aligned to the air outlets and further provided with another outlet constantly connected with an air source. By the time-shared agent feeding control pipeline, agents can be distributed to each position requiring agent addition, flow scrambling of the branch feeding pipes is prevented, and feeding stability is realized.
Description
Technical field
The present invention relates to environmental technology field, particularly to a kind of medicament delivery amount Time-sharing control pipeline of wastewater treatment dosing accurately.
Background technology
The materializing strategy process nature of sewage is one and is neutralized by adding various chemical agent, degrade again through various biochemical technologies after the chemical reactions such as flocculation sediment, remove the process of harmful substance in sewage, its process relates to multiple process section, and each process section is designed with reaction of high order pond, sewage is by completing the elimination of harmful substance after gradual reaction, convert or and insoluble substance is converted into into dissolved matter, then pass through subsequent biochemical technique to be removed, the core of materializing strategy technique is the correct of the various medicaments of medicine system, stably throw in technology.
In sewage treatment plant's process system design process, need for different agents, Specialty Design many sets medicine system. For investment reduction, every kind of medicament only devises a set of lifting pressurizer, and different medicament storages, preparation are all concentrated design and installation in one ad hoc the medicament pump house of lower 5 meters. Medicament is transported to the different toss area of distant place different process section by the supercharging of medicament supercharging elevator pump again through medicament transfer pipeline after being promoted after automatically prepare. And owing to the layout of this enterprise technique cell body adopts superposing type design, the delivery position causing medicament delivery point and basement medicament elevator pump is distant, transfer pipeline length is more than 50 meters, and owing to the design of each process section has reaction of high order unit, so that same medicament has existed for multiple release position, and these release positions are all connected in parallel on same medicament pipeline.
In designing due to former medicine system, all there is some lifting multiple spot and throw in each medicament, this results in owing to the difference of placement position makes each medicament delivery point different with the distance promoting booster pump, causes that the medicament resistance of ducting in the duct is also different. secondly, the design high level of some toss area different (cell body height is different), different high-rise release positions exist again the difference promoting Yang Cheng demand. 3rd, the pneumatic control valve of each release position is again be connected in parallel on same medicament house steward, and from hydromechanical ultimate principle, fluid is always toward the local flowing that the resistance of ducting is little, this when resulting in actual delivering medicament the valve opening/closedown of each release position can affect other release position medicament flow out, even result in other release position stream and do not go out medicament, even if taking the corresponding adjustment technology that controls and being also difficult to so that a whole set of each release position steady operation of medicine system, result in explained hereafter and cannot stablize properly functioning, the qualified discharge of effluent quality cannot be protected.4th, due to according to conventional automated control principle, valve opening/the shut-in time of each adding of agent point is based on what the feedback data of the on-line checking instrument of reaction tank at different levels was controlled, unavoidably there is the superposition of duty in this open and close of valve resulting in each toss area, the valve thus producing different agents toss area is likely to generation " robbing " the flow phenomenon that interacts at any time. Finally, since above reason has resulted in the unstability of the medicament delivery of whole medicine system.
Therefore, it is necessary to provide a kind of new dosing pipe to avoid problem above.
Summary of the invention
A kind of medicament delivery amount Time-sharing control pipeline of wastewater treatment dosing accurately of offer is provided.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of wastewater treatment dosing Time-sharing control pipeline, including dispensing canister, is connected to the return duct at dispensing canister top from described dispensing canister bottom and from the drug tube separated described return duct one node; Described drug tube separates some dispensing arms, each dispensing arm is designed with a pneumatic operated valve, the air inlet of all pneumatic operated valves is connected to an air distributing device, described air distributing device includes shell and the inner core being articulated in described shell, described shell is provided with the some gas outlets connecting pneumatic operated valve, described inner core is provided with air supply channel, described air supply channel have one can to toward the outlet of described gas outlet and another connect the outlet of source of the gas all the time.
Concrete, described inner core is additionally provided with bleed passage, and described bleed passage has one can to the outlet of the outlet of past described gas outlet and another emptying.
Further, each described dispensing arm is additionally provided with a hand-operated valve.
Concrete, the rotating speed of described air distributing device inner core is controlled by a controller.
Further, described return duct is provided with the elevator pump of described node upstream and is positioned at the adjustment valve in node downstream.
Further, described node is provided with pressure transducer, is provided with an electric speed regulation valve between described node and elevator pump, and described pressure transducer is electrically connected to controller, and described controller controls electric speed regulation valve.
Further, described dispensing canister is connected to water inlet pipe and makes up a prescription pipe, described in the pipe that makes up a prescription connect a medicament storage tank, described water inlet pipe is provided with the water intaking valve controlled by described controller, described in the pipe that makes up a prescription be provided with the medicament preparing pump that controlled by described controller and make up a prescription valve.
Further, the upper liquid-level switch electrically connecting described controller and lower liquid-level switch it are provided with in described dispensing canister.
Further, it is provided with, in described dispensing canister, the agitator controlled by described controller.
Adopting technique scheme, technical solution of the present invention provides the benefit that:
1, Medicament dispensing device can be needed the position of dosing by the present invention to each, and prevents from robbing mutually stream between dispensing arm, maintains the stability thrown in;
2, stopping medicament by certain hand-operated valve of closedown and be added to corresponding process in pond, the use of such pipe-line system is more flexible;
3, passing through controller when pressure transducer senses that node pressure changes and adjust electric speed regulation valve opening, the flow velocity that so makes to make up a prescription is more stable easily-controllable;
4, controller can reach certain mixing ratio by the relative velocity of control water inlet pipe and the pipe that makes up a prescription, it is achieved automatically controlling of drug concentration;
5, upper and lower liquid-level switch can control the liquid level in dispensing canister, makes dispensing canister can automatically switch under two states of making up a prescription and offer medicine, it is achieved that continuous operation.
Accompanying drawing explanation
Fig. 1 is the structure diagram of wastewater treatment dosing Time-sharing control pipeline of the present invention;
Fig. 2 is the sectional view of air distributing device;
Fig. 3 is the A-A revolved sectional view in Fig. 2;
Fig. 4 is the control structure figure of wastewater treatment dosing Time-sharing control pipeline of the present invention.
In figure, numeral represents:
1-dispensing canister, 11-agitator, the upper liquid-level switch of 12-, liquid-level switch under 13-;
2-return duct, 2a-elevator pump, 2b-manual governing valve, 2c-electric speed regulation valve, 2d-pressure transducer;
3-drug tube, 31-offers medicine arm, 31a-pneumatic operated valve, 31b-hand-operated valve;
4-water inlet pipe, 4a-water intaking valve;
5-medicament storage tank;
6-makes up a prescription pipe, 6a-medicament preparing pump, and 6b-makes up a prescription valve;
7-air distributing device, 71-shell, 711-gas outlet, 72-inner core, 721-air supply channel, 722-bleed passage;
8-source of the gas;
9-controller.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of wastewater treatment dosing Time-sharing control pipeline, including dispensing canister 1, it is connected to the return duct 2 at dispensing canister 1 top from dispensing canister 1 bottom and from the drug tube 3 separated return duct 2 one node, the elevator pump 2a being provided with node upstream on the return duct 2 and adjustment valve 2b being positioned at node downstream, drug tube 3 separates some dispensing arms 31, each dispensing arm 31 is designed with a pneumatic operated valve 31a, the air inlet (mark) of all pneumatic operated valve 31a is connected to an air distributing device 7, air distributing device 7 includes shell 71 and the inner core 72 being articulated in shell 71, shell 71 is provided with the some gas outlets 711 connecting pneumatic operated valve 31a, inner core 72 is provided with air supply channel 721 and bleed passage 722, air supply channel 721 and bleed passage 722 are respectively arranged with one can to the outlet toward gas outlet 711, another outlet of air supply channel 721 connects a source of the gas 8 all the time, another outlet emptying of bleed passage. during work, turning manual governing valve 2b, elevator pump 2a down and the medicament in dispensing canister 1 can be made at return duct 2 internal recycle, manual governing valve 2b makes node place retain certain pressure. Medicament dispensing device can be needed the position of dosing by dispensing arm 31 to each, and when the pneumatic operated valve 31a on arm 31 of offeing medicine is opened, medicament will inject corresponding process pond from the dispensing arm 31 opened. along with inner core 72 rotates, air supply channel 721 can periodically connect with each gas outlet 711, but every time most multipotency makes source of the gas 8 supply toward the air inlet of one pneumatic operated valve 31a, when air supply channel 721 connects a pneumatic operated valve 31a, bleed passage 722 can make previous pneumatic operated valve 31a emptying close, and thus can protect only one of which dispensing arm 31 in the same time unimpeded. so prevent from robbing mutually stream between dispensing arm 31, maintain the stability thrown in.
As it is shown in figure 1, each dispensing arm 31 is additionally provided with a hand-operated valve 31b. The number number that is general and that process pond of dispensing arm 31 is identical, but in different process occasions, same medicament may not necessarily be thrown into each and process in pond, just can stop medicament be added in corresponding process pond by closing certain hand-operated valve 31b, and the use of such pipe-line system is more flexible.
As shown in Figure 4, the rotating speed of air distributing device 7 inner core 72 is controlled by a controller 9. Controller 9 can control the swing circle of inner core 72 to adapt to the response speed of wastewater treatment.
As shown in Figure 1 and Figure 4, node is provided with pressure transducer 2d, is provided with electric speed regulation valve 2c, a pressure transducer 2d and is electrically connected to controller 9 between node and elevator pump 2a, and controller 9 controls electric speed regulation valve 2c.Every time dispensing arm 31 open the pressure release that can cause node place, this can make flow unstable, can adjust electric speed regulation valve 2c aperture by controller 9 when pressure transducer 2d senses when node pressure change, and the flow velocity that so makes to make up a prescription is more stable easily-controllable.
As shown in Figure 1 and Figure 4, dispensing canister 1 being connected to water inlet pipe 4 and the pipe 6 that makes up a prescription, the pipe 6 that makes up a prescription connects a medicament storage tank 5, and water inlet pipe 4 is provided with the water intaking valve 4a that controlled device 9 controls, and the pipe 6 that makes up a prescription is provided with medicament preparing pump 6a and the valve 6b that makes up a prescription that controlled device 9 controls. Storing high concentration medicament in medicament storage tank 5, make up a prescription in process, controller 9 can reach certain mixing ratio by the relative velocity of control water inlet pipe 4 and the pipe 6 that makes up a prescription, it is achieved automatically controlling of drug concentration.
As shown in Figure 1 and Figure 4, the agitator 11 that controlled device 9 controls it is provided with in dispensing canister 1. When carrying out when making up a prescription, controller 9 indicates agitator 11 to stir and makes high concentration medicament and water mixing.
As shown in Figure 1 and Figure 4, the upper liquid-level switch 12 of electrical connection controller 9 and lower liquid-level switch 13 it are provided with in dispensing canister 1. Upper liquid-level switch 12 and lower liquid-level switch 13 may indicate that the solution height in dispensing canister 1, when liquid level is beyond upper liquid-level switch 12, and stopping of making up a prescription, the medicament mixed is by return duct 2 toward processing pond dispensing, and liquid level falls; When liquid level is lower than lower liquid-level switch 13, dispensing stops, water inlet pipe 4 and make up a prescription pipe 6 toward feed flow in dispensing canister 1, and agitator 11 makes medicament mix, and liquid level rises, until liquid level exceeds upper liquid-level switch 12 again. Thus make dispensing canister can automatically switch under two states of making up a prescription and offer medicine, it is achieved that continuous operation.
Above-described is only some embodiments of the present invention. For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.
Claims (9)
1. a wastewater treatment dosing Time-sharing control pipeline, including dispensing canister, is connected to the return duct at dispensing canister top and from the drug tube separated described return duct one node from described dispensing canister bottom; It is characterized in that: described drug tube separates some dispensing arms, each dispensing arm is designed with a pneumatic operated valve, the air inlet of all pneumatic operated valves is connected to an air distributing device, described air distributing device includes shell and the inner core being articulated in described shell, described shell is provided with the some gas outlets connecting pneumatic operated valve, described inner core is provided with air supply channel, described air supply channel have one can to toward the outlet of described gas outlet and another connect the outlet of source of the gas all the time.
2. wastewater treatment dosing Time-sharing control pipeline according to claim 1, it is characterised in that: described inner core is additionally provided with bleed passage, and described bleed passage has one can to the outlet of the outlet of past described gas outlet and another emptying.
3. wastewater treatment dosing Time-sharing control pipeline according to claim 1 and 2, it is characterised in that: each described dispensing arm is additionally provided with a hand-operated valve.
4. wastewater treatment dosing Time-sharing control pipeline according to claim 1, it is characterised in that: the rotating speed of described air distributing device inner core is controlled by a controller.
5. wastewater treatment dosing Time-sharing control pipeline according to claim 4, it is characterised in that: described return duct is provided with the elevator pump of described node upstream and is positioned at the adjustment valve in node downstream.
6. wastewater treatment dosing Time-sharing control pipeline according to claim 5, it is characterized in that: described node is provided with pressure transducer, being provided with an electric speed regulation valve between described node and elevator pump, described pressure transducer is electrically connected to controller, and described controller controls electric speed regulation valve.
7. wastewater treatment dosing Time-sharing control pipeline according to claim 4, it is characterized in that: described dispensing canister is connected to water inlet pipe and the pipe that makes up a prescription, the described pipe that makes up a prescription connects a medicament storage tank, described water inlet pipe is provided with the water intaking valve controlled by described controller, described in the pipe that makes up a prescription be provided with the medicament preparing pump controlled by described controller and the valve that makes up a prescription.
8. wastewater treatment dosing Time-sharing control pipeline according to claim 7, it is characterised in that: it is provided with the upper liquid-level switch and lower liquid-level switch that electrically connect described controller in described dispensing canister.
9. wastewater treatment dosing Time-sharing control pipeline according to claim 7, it is characterised in that: it is provided with the agitator controlled by described controller in described dispensing canister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201600.3A CN105652849A (en) | 2016-04-01 | 2016-04-01 | Time-shared agent feeding control pipeline for wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201600.3A CN105652849A (en) | 2016-04-01 | 2016-04-01 | Time-shared agent feeding control pipeline for wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105652849A true CN105652849A (en) | 2016-06-08 |
Family
ID=56496806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610201600.3A Pending CN105652849A (en) | 2016-04-01 | 2016-04-01 | Time-shared agent feeding control pipeline for wastewater treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN105652849A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844209A (en) * | 2020-12-25 | 2021-05-28 | 山东东山新驿煤矿有限公司 | Automatic inorganic medicine dispensing system and method for sewage treatment station |
| CN113653139A (en) * | 2021-08-11 | 2021-11-16 | 中船黄埔文冲船舶有限公司 | Vacuum closestool system of offeing medicine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086663A (en) * | 1975-06-21 | 1978-04-25 | Allied Colloids Limited | Mixing apparatus and method |
| CN101428884A (en) * | 2008-12-10 | 2009-05-13 | 哈尔滨工业大学 | Multi-point administration pipe mixing device for water treatment |
| CN202968161U (en) * | 2012-12-14 | 2013-06-05 | 上海市政工程设计研究总院（集团）有限公司 | Multipoint dosing system of water purification plant |
| CN203754450U (en) * | 2014-02-28 | 2014-08-06 | 苏州格胜环保设备有限公司 | Cyclic dosing system |
| CN203991656U (en) * | 2014-08-08 | 2014-12-10 | 北京建工环境修复股份有限公司 | A kind of organic polluted soil and underground water in-situ repairing device |
| CN204275858U (en) * | 2014-12-04 | 2015-04-22 | 山东双轮股份有限公司 | Multi-joint chemicals dosing plant |
| CN205563252U (en) * | 2016-04-01 | 2016-09-07 | 中新苏州工业园区环保技术有限公司 | Waste water treatment adds medicine application pipeline |
-
2016
- 2016-04-01 CN CN201610201600.3A patent/CN105652849A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086663A (en) * | 1975-06-21 | 1978-04-25 | Allied Colloids Limited | Mixing apparatus and method |
| CN101428884A (en) * | 2008-12-10 | 2009-05-13 | 哈尔滨工业大学 | Multi-point administration pipe mixing device for water treatment |
| CN202968161U (en) * | 2012-12-14 | 2013-06-05 | 上海市政工程设计研究总院（集团）有限公司 | Multipoint dosing system of water purification plant |
| CN203754450U (en) * | 2014-02-28 | 2014-08-06 | 苏州格胜环保设备有限公司 | Cyclic dosing system |
| CN203991656U (en) * | 2014-08-08 | 2014-12-10 | 北京建工环境修复股份有限公司 | A kind of organic polluted soil and underground water in-situ repairing device |
| CN204275858U (en) * | 2014-12-04 | 2015-04-22 | 山东双轮股份有限公司 | Multi-joint chemicals dosing plant |
| CN205563252U (en) * | 2016-04-01 | 2016-09-07 | 中新苏州工业园区环保技术有限公司 | Waste water treatment adds medicine application pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844209A (en) * | 2020-12-25 | 2021-05-28 | 山东东山新驿煤矿有限公司 | Automatic inorganic medicine dispensing system and method for sewage treatment station |
| CN113653139A (en) * | 2021-08-11 | 2021-11-16 | 中船黄埔文冲船舶有限公司 | Vacuum closestool system of offeing medicine |
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Application publication date: 20160608 |
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