CN108273295A - A kind of environment friendly system and its working method - Google Patents
A kind of environment friendly system and its working method Download PDFInfo
- Publication number
- CN108273295A CN108273295A CN201810035551.XA CN201810035551A CN108273295A CN 108273295 A CN108273295 A CN 108273295A CN 201810035551 A CN201810035551 A CN 201810035551A CN 108273295 A CN108273295 A CN 108273295A
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- CN
- China
- Prior art keywords
- filter
- sewage
- subsystem
- filtering chamber
- chamber
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000010865 sewage Substances 0.000 claims abstract description 84
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 23
- 230000007613 environmental effect Effects 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
- B01D35/1435—Filter condition indicators with alarm means
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to a kind of environmentally friendly water system and its working methods, wherein the environment-protective water system includes sewage supply subsystem and filter subsystem；The wherein described sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；And the filter subsystem includes control module, and the flow sensor and alarm module that are connected with the control module；The flow sensor is located at the junction of the pipeline and filter subsystem, and the water velocity of filter subsystem is flowed into for detection sewage；When flow sensor detects threshold range of the effluent flow rate less than setting, then control module sends out alarm suitable for control alarm module；The environmentally friendly water system of the present invention monitors the sewage supply situation that sewage supplies subsystem by flow sensor, prevents sewage feedway because blocking causes sewage supply flow to become smaller, influences the working efficiency of press filtration subsystem.
Description
Technical field
The present invention relates to field of environment protection, and in particular to a kind of environmental protection water system and its working method.
Background technology
Filter press has obtained more and more extensive as a kind of ideal suspension solid-liquid separating equipment in field of industrial production
Application.
In most cases, source of sewage is directly connected with filter press, is filtered processing, there is presently no to source of sewage
Implementing monitoring is supplied, once there is exception in the supply of source of sewage, it will influence the working efficiency of filter press.
Invention content
The object of the present invention is to provide a kind of environmentally friendly water system and its working methods, to monitor sewage by flow sensor
The sewage for supplying subsystem supplies situation.
In order to reach foregoing invention purpose, the present invention provides a kind of environmentally friendly water system, including sewage supply subsystem and
Filter subsystem；The wherein described sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to mistake
Filter system；And the filter subsystem includes control module, and the flow sensor and report that are connected with the control module
Alert module；The flow sensor is located at the junction of the pipeline and filter subsystem, and filtering is flowed into for detection sewage
The water velocity of subsystem；When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable
Alarm is sent out in control alarm module.
Further, the filter subsystem is filter press, is equipped with filter device；The filter device includes several mistakes
Filter chamber room；Each filtering chamber is equipped with water inlet and water outlet, and the water outlet of a filtering chamber and another filter chamber
The water inlet of room is connected；After sewage enters from the water inlet of first filtering chamber in first filtering chamber, in sewage height
When degree is more than water outlet, the sewage is flowed into from the water outlet in next filtering chamber, and so on, until all mistakes
Filter chamber is marked with sewage in room.
Further, the water inlet of each filtering chamber is equipped with a check valve, with prevent the sewage in filtering chamber from
Water inlet is flow backwards away.
Further, the filter press further includes：It is located at the driving device and limiting device of the filter device both sides；
After being marked with sewage in all filtering chamber, the driving device is suitable for driving filter device with speed V1 to limiting device side
Drainage is set to be penetrated into corresponding drip chamber through corresponding filter cloth to compress each filtering chamber to movement.
Further, it is equipped with above the indoor water inlet of each filter chamber for detecting pressure value in filtering chamber
Pressure sensor；When the indoor pressure value of any filter chamber is beyond the pressure threshold set, then judge that the filtering chamber blocks.
Further, the filtering chamber is formed by two filter frames and the filter cloth on two filter frames；With
And each filtering chamber forms drip chamber between any two.
Further, when detecting that any filtering chamber blocks, the driving device is suitable for driving filter device with speed
V2 is moved backward, and to unclamp each filtering chamber, makes the indoor drainage of draining through corresponding filter cloth by resorption to corresponding filtering chamber
When, the attachment on the filter cloth is washed away, with dredge blockage.
Further, the speed V2 is less than the speed V1.
Further, each drip chamber is equipped with discharge outlet, and drainage is drained into one by a drainage pipeline and catchmented by each discharge outlet
In pond.
Another aspect, the present invention also provides a kind of working methods of environmentally friendly water system, including：
Sewage supplies subsystem and filter subsystem；Wherein
The sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；With
And
The filter subsystem includes control module, and the flow sensor and alarm module being connected with the control module；
The flow sensor is located at the junction of the pipeline and filter subsystem, and filtering subsystem is flowed into for detection sewage
The water velocity of system；
When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable for control alarm module
Send out alarm.
Compared with prior art, the invention has the advantages that the environmentally friendly water system of the present invention is supervised by flow sensor
The sewage that pollution control water supplies subsystem supplies situation, prevents sewage feedway because blocking causes sewage supply flow to become smaller, shadow
Ring the working efficiency of press filtration subsystem.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the functional block diagram of the environmentally friendly water system of the present invention；
Fig. 2 is the structural schematic diagram of the filter press of the environmentally friendly water system of the present invention；
Fig. 3 is the structural schematic diagram of the two of which filtering chamber of the filter press of the environmentally friendly water system of the present invention；
The step of Fig. 4 is the working method of the environmentally friendly water system of the present invention is schemed.
Wherein：
Holder 1, driving device 2, filter device 3, filtering chamber 31, filter cloth 32, filter frame 33, water inlet 34, water outlet 35,
Check valve 36, pressure sensor 37, drip chamber 38, discharge outlet 39, limiting device 4, water inlet line 5, drainage pipeline 6, collecting-tank
7。
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
Fig. 1 is the functional block diagram of the environmentally friendly water system of the present invention.
As shown in Figure 1, the present embodiment 1 provides a kind of environmentally friendly water system, including sewage supply subsystem and filtering subsystem
System；The wherein described sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；
And the filter subsystem includes control module, and the flow sensor and alarm module that are connected with the control module；Institute
The junction that flow sensor is located at the pipeline and filter subsystem is stated, the water of filter subsystem is flowed into for detection sewage
Flow velocity degree；When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable for control alarm
Module sends out alarm.
Specifically, the flow sensor such as, but not limited to uses QVE1901 flow sensors；The alarm module is adopted
With sound and light alarm module reminding effect is played to send out alarm when sewage supply subsystem is abnormal；The threshold of the setting
Value range can according to actual needs be set by those skilled in the art.
Specifically, the environmentally friendly water system of the present embodiment monitors the sewage supply that sewage supplies subsystem by flow sensor
It is different to can determine that sewage supply subsystem has occurred when the water velocity of sewage reduces, and is less than the threshold range of setting for situation
Often, the control module sends out alarm suitable for control alarm module, plays reminding effect, effectively prevent sewage feedway because stifled
Plug causes sewage supply flow to become smaller, and influences the working efficiency of press filtration subsystem, and then influences the work effect of this environmental protection water system
Rate.
In order to further increase the working efficiency of this environmental protection water system, a kind of efficient filter excessively is present embodiments provided
System.
Fig. 2 is the structural schematic diagram of the filter press of the environmentally friendly water system of the present invention.
Fig. 3 is the structural schematic diagram of the two of which filtering chamber of the filter press of the environmentally friendly water system of the present invention.
As shown in Figures 2 and 3, the filter subsystem is filter press, is equipped with filter device 3；The filter device 3 wraps
Include several filtering chamber 31；Each filtering chamber 31 is equipped with water inlet 34 and water outlet 35, and filtering chamber goes out
The mouth of a river is connected with the water inlet of another filtering chamber；When sewage enters first mistake from the water inlet of first filtering chamber
After in filter chamber room, when sewage highly is more than water outlet, the sewage is flowed into from the water outlet in next filtering chamber,
And so on, until being marked with sewage in all filtering chamber.
Specifically, the sewage enters first filtering through a water inlet line 5 from the water inlet 34 of first filtering chamber
In chamber 31, when the sewage highly of injection is more than water outlet 35, continues to inject sewage, so that sewage is flowed into from water outlet 35 next
A filtering chamber, and so on, until being marked with sewage in the filtering chamber, then stop injecting sewage；It wherein will be close to institute
The filtering chamber of water inlet line 5 is stated as first filtering chamber.
Optionally, the water outlet of a filtering chamber and the water inlet of another filtering chamber such as, but not limited to pass through soft
Pipe is connected.
The filtering chamber is formed by two filter frames 33 and the filter cloth 32 on two filter frames 33；And
Each filtering chamber forms drip chamber 38 between any two.
The filter press further includes：It is located at the driving device 2 and limiting device 4 of 3 both sides of the filter device；Work as institute
Have after being marked with sewage in filtering chamber, the driving device 2 is suitable for driving filter device 3 with speed V1 to 4 side of limiting device
Drainage is set to be penetrated into corresponding drip chamber through corresponding filter cloth to compress each filtering chamber to movement.
Specifically, the driving device 2, filter device 3 and limiting device 4 are respectively positioned on a holder 1, wherein the driving
Device 2 and limiting device 4 are located at the both ends of the holder 1, and the filter device 3 is located at the driving device 2 and limit
Between device 4；The driving device 2 is controlled by the control module；The driving device 2 such as, but not limited to uses hydraulic pressure
Pump；The limiting device 4 is such as, but not limited to the limiting plate being vertically arranged.
The pressure for detecting pressure value in filtering chamber is equipped with above the water inlet 34 in each filtering chamber 31
Force snesor 37；When the indoor pressure value of any filter chamber is beyond the pressure threshold set, then judge that the filtering chamber blocks.
Specifically, the pressure sensor 37 is suitable for sending out the indoor pressure value of corresponding filter chamber at interval of a period of time
It send to the control module, wherein interval time is such as, but not limited to 0.5-3S；The pressure sensor 37 enters described in being located at
The top at the mouth of a river 34 can prevent the impurity such as the sludge in sewage from adhering to the surface of pressure sensor, and cause stress sensor
Pressure value can not accurately be detected；The pressure threshold of the setting is such as, but not limited to 0.3MPA-3MPA, those skilled in the art
The pressure threshold of the setting can be suitably adjusted according to actual state.
Be equipped with a check valve 36 at the water inlet 34 of each filtering chamber 31, with prevent the sewage in filtering chamber 31 from
It is flow backwards away at water inlet 34.
Specifically, in the present embodiment, in order to ensure the indoor pressure value of filter chamber that pressure sensor detects is accurate,
A check valve 36 is equipped at the water inlet 34 of each filtering chamber 31, to prevent the sewage in filtering chamber 31 from water inlet 34
Outflow is flow backwards at place, and causes the pressure value in filtering chamber 31 inaccurate.
When detecting that any filtering chamber blocks, it is reversed with speed V2 that the driving device 2 is suitable for driving filter device 3
It is mobile, to unclamp each filtering chamber, when making the indoor drainage of draining through corresponding filter cloth by resorption to corresponding filtering chamber, wash away
Fall the attachment on the filter cloth, with dredge blockage.
Specifically, it is T2 that the driving device 2, which is suitable for driving filter device 3 with the speed V2 times moved backward, it is described
T2 is such as, but not limited to 5-30S.
The speed V2 is less than the speed V1.
Specifically, due to when filter device 3 moves backward filter cloth blocked, speed V2 small setting specific rate V1 makes
The load for obtaining driving device 2 is unlikely to excessive, to extend the service life of this filter press.
Each drip chamber 38 is equipped with discharge outlet 39, and drainage is drained into one by a drainage pipeline 6 and catchmented by each discharge outlet 39
In pond 7.
Specifically, after sewage enters filtering chamber 31, the driving device 2 drives the filter device 3 towards limit
Device 4 moves, and to compress each filtering chamber 31, so that drainage is penetrated into corresponding drip chamber 38 through corresponding filter cloth 32, then slave phase
Discharge outlet 39 is answered to be flowed into collecting-tank 7 through the drainage pipeline 6.
Specifically, the high point of the drainage pipeline 6 is higher than the top of filter device 3；It is previously provided in the collecting-tank 7
Water, and the outlet of the drainage pipeline 6 is made to be located at underwater, when driving device 2 drives filter device 3 to move backward, to collect
There is enough water that can be back to drip chamber 38 successively through drainage pipeline 6, in filtering chamber 31 in pond 7, to wash away filter
Attachment on cloth.
The filter press of the present embodiment, by driving each filtering chamber to move backward, can make hair when filter cloth is blocked
The raw filtering chamber blocked generates negative pressure, to make the aqueous reflux in collecting-tank, the water of refluence wash away on filter cloth from the negative
Enter in filtering chamber after attachment, to solve the problems, such as filter cloth blocking；The present invention by simple anti-blockage structure,
It can ensure that filter cloth remains unobstructed state, greatly improves work efficiency, and then improve this environmental protection in the course of work
The working efficiency of water system.
Embodiment 2
The step of Fig. 4 is the working method of the environmentally friendly water system of the present invention is schemed.
As shown in figure 4, on the basis of embodiment 1, the present embodiment 2 provides a kind of working method of environmentally friendly water system,
Subsystem and filter subsystem are supplied including sewage；Wherein
The sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；With
And
The filter subsystem includes control module, and the flow sensor and alarm module being connected with the control module；
The flow sensor is located at the junction of the pipeline and filter subsystem, and filtering subsystem is flowed into for detection sewage
The water velocity of system；
When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable for control alarm module
Send out alarm.
Specifically, the working method includes the following steps：Step S1, sewage is injected into filter press；Step S2 is opened
Filter press to carry out press filtration to sewage, and monitors, judges blocking in pressure-filtering process；And step S3, dredge blockage.
Specifically, filter press has been described in detail in embodiment 1 in the present embodiment, do not repeating herein.
Specifically, the method that the step S1 injects sewage into filter press is as follows：Filtering is set in the filter press
Device 3, the filter device 3 include several filtering chamber 31；Each filtering chamber 31 is equipped with water inlet 34 and water outlet 35,
And the water outlet of a filtering chamber is connected with the water inlet of another filtering chamber；When sewage is from first filtering chamber
After water inlet enters in first filtering chamber, when sewage highly is more than water outlet, the sewage is flowed into from the water outlet
In to next filtering chamber, and so on, until being marked with sewage in all filtering chamber.
The method for carrying out press filtration in the step S2 to sewage is as follows：The filter press further includes：It is located at the mistake
Filter the driving device 2 and limiting device 4 of 3 both sides of device；After being marked with sewage in all filtering chamber, the driving device 2
It is moved to 4 direction of limiting device with speed V1 suitable for driving filter device 3, to compress each filtering chamber, makes drainage through corresponding filter
Cloth is penetrated into corresponding drip chamber.
In the step S2 monitor, judge pressure-filtering process in blocking method it is as follows：In each filtering chamber 31
The top of water inlet 34 be equipped with the pressure sensor 37 for detecting pressure value in filtering chamber；When any filter chamber is indoor
When pressure value is beyond the pressure threshold set, then judge that the filtering chamber blocks.
The method of the step S3 dredge blockages is as follows：When detecting that any filtering chamber blocks, the driving device 2
It is moved backward with speed V2 suitable for driving filter device 3, to unclamp each filtering chamber, makes the indoor drainage of draining through corresponding filter cloth
When by resorption to corresponding filtering chamber, the attachment on the filter cloth is washed away, with dredge blockage.
In the present embodiment, above step S2 and the continuous repetitive cyclings of step S3, until the drainage in sewage is all discharged.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of environmental protection water system, which is characterized in that including
Sewage supplies subsystem and filter subsystem；Wherein
The sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；With
And
The filter subsystem includes control module, and the flow sensor and alarm module being connected with the control module；
The flow sensor is located at the junction of the pipeline and filter subsystem, and filtering subsystem is flowed into for detection sewage
The water velocity of system；
When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable for control alarm module
Send out alarm.
2. environmental protection water system according to claim 1, which is characterized in that
The filter subsystem is filter press, is equipped with filter device；
The filter device includes several filtering chamber；
Each filtering chamber is equipped with water inlet and water outlet, and the water outlet of a filtering chamber and another filtering chamber
Water inlet is connected；
It is more than water outlet in sewage highly after sewage enters from the water inlet of first filtering chamber in first filtering chamber
When, the sewage is flowed into from the water outlet in next filtering chamber, and so on, until being noted in all filtering chamber
There is sewage.
3. environmental protection water system according to claim 2, which is characterized in that
The filtering chamber is formed by two filter frames and the filter cloth on two filter frames；And
Each filtering chamber forms drip chamber between any two.
4. environmental protection water system according to claim 3, which is characterized in that
The filter press further includes：It is located at the driving device and limiting device of the filter device both sides；
After being marked with sewage in all filtering chamber, the driving device is suitable for driving filter device and is filled to limit with speed V1
Direction movement is set, to compress each filtering chamber, drainage is made to be penetrated into corresponding drip chamber through corresponding filter cloth.
5. environmental protection water system according to claim 4, which is characterized in that
The pressure sensor for detecting pressure value in filtering chamber is equipped with above the indoor water inlet of each filter chamber；
When the indoor pressure value of any filter chamber is beyond the pressure threshold set, then judge that the filtering chamber blocks.
6. environmental protection water system according to claim 5, which is characterized in that
The water inlet of each filtering chamber is equipped with a check valve, to prevent the sewage in filtering chamber from being flow backwards from water inlet
It goes out.
7. environmental protection water system according to claim 6, which is characterized in that
When detecting that any filtering chamber blocks, the driving device is suitable for driving filter device and is moved backward with speed V2,
To unclamp each filtering chamber, when making the indoor drainage of draining through corresponding filter cloth by resorption to corresponding filtering chamber, this is washed away
Attachment on filter cloth, with dredge blockage.
8. environmental protection water system according to claim 7, which is characterized in that
The speed V2 is less than the speed V1.
9. environmental protection water system according to claim 8, which is characterized in that
Each drip chamber is equipped with discharge outlet, and each discharge outlet is drained into drainage in one collecting-tank by a drainage pipeline.
10. a kind of working method of environmental protection water system, which is characterized in that including：
Sewage supplies subsystem and filter subsystem；Wherein
The sewage supply subsystem is connected with filter subsystem by a pipeline, and sewage is supplied to filter subsystem；With
And
The filter subsystem includes control module, and the flow sensor and alarm module being connected with the control module；
The flow sensor is located at the junction of the pipeline and filter subsystem, and filtering subsystem is flowed into for detection sewage
The water velocity of system；
When flow sensor detects threshold range of the effluent flow rate less than setting, then control module is suitable for control alarm module
Send out alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035551.XA CN108273295A (en) | 2018-01-15 | 2018-01-15 | A kind of environment friendly system and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035551.XA CN108273295A (en) | 2018-01-15 | 2018-01-15 | A kind of environment friendly system and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108273295A true CN108273295A (en) | 2018-07-13 |
Family
ID=62803751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035551.XA Withdrawn CN108273295A (en) | 2018-01-15 | 2018-01-15 | A kind of environment friendly system and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108273295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790452A (en) * | 2019-11-01 | 2020-02-14 | 淮安信息职业技术学院 | Sewage purification treatment device based on PLC control |
| WO2021074404A1 (en) * | 2019-10-18 | 2021-04-22 | Klinkau Gmbh + Co. Kg | Filter press system |
| CN113567703A (en) * | 2021-07-19 | 2021-10-29 | 南京市仪器仪表工业供销有限公司 | Flow velocity monitoring system and monitoring method |
-
2018
- 2018-01-15 CN CN201810035551.XA patent/CN108273295A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021074404A1 (en) * | 2019-10-18 | 2021-04-22 | Klinkau Gmbh + Co. Kg | Filter press system |
| CN110790452A (en) * | 2019-11-01 | 2020-02-14 | 淮安信息职业技术学院 | Sewage purification treatment device based on PLC control |
| CN110790452B (en) * | 2019-11-01 | 2021-10-26 | 淮安信息职业技术学院 | Sewage purification treatment device based on PLC control |
| CN113567703A (en) * | 2021-07-19 | 2021-10-29 | 南京市仪器仪表工业供销有限公司 | Flow velocity monitoring system and monitoring method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180713 |
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| WW01 | Invention patent application withdrawn after publication |