CN108245949A - A kind of filtration system and its method of work with pre-filter function - Google Patents
A kind of filtration system and its method of work with pre-filter function Download PDFInfo
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- CN108245949A CN108245949A CN201810036046.7A CN201810036046A CN108245949A CN 108245949 A CN108245949 A CN 108245949A CN 201810036046 A CN201810036046 A CN 201810036046A CN 108245949 A CN108245949 A CN 108245949A
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- filter
- sewage
- filtering
- chamber
- side plate
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- 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
Abstract
The present invention relates to a kind of filtration system and its method of work with pre-filter function, the filtration system includes：Sewage feed mechanism and filter mechanism；Wherein described sewage feed mechanism includes：Cesspool, the feed pipe suitable for sewage in cesspool is accessed filter mechanism and the pre-filtering mechanism at the water supply water inlet tube；And the pre-filtering mechanism is suitable for filtering out the bulky grain solid impurity in sewage in advance；The filtration system and its method of work of the present invention in sewage feed mechanism by setting pre-filtering mechanism, the bulky grain solid impurity in sewage is filtered out in advance, it can prevent bulky grain solid impurity from entering filtering chamber's abrasion filter cloth, it is ensured that filter effect extends the service life of filter cloth.
Description
Technical field
The present invention relates to environmental technology fields, and in particular to a kind of filtration system and its work side with pre-filter function
Method.
Background technology
With the development of science and technology, sewage disposal technology is more and more ripe, wherein filter press as a kind of ideal sewage at
Equipment is managed, is more and more widely used in field of industrial production.
At present, in most cases, source of sewage is directly connected with filter press, is filtered processing, if sewage to be filtered
In solid impurity it is more, and particle is larger, and when source of sewage enters in filter press, the solid impurity of wherein larger particles is easy to
The filter cloth in filter press is worn, and influences the filter effect of filter press, while greatly reduce the service life of filter cloth.
Invention content
The object of the present invention is to provide a kind of filtration systems and its method of work with pre-filter function, pass through pre-filtering
Mechanism filters out the bulky grain solid impurity in sewage in advance.
In order to solve the above technical problem, the present invention provides a kind of filtration system, including：Sewage feed mechanism and filtering
Mechanism；Wherein described sewage feed mechanism includes：Cesspool, suitable for by cesspool sewage access filter mechanism feed pipe with
And the pre-filtering mechanism at the water supply water inlet tube；And the pre-filtering mechanism is big in sewage suitable for filtering out in advance
Granular solids impurity.
Further, the filtration system further includes host computer；The feed pipe is equipped with solenoid valve；The host computer is suitable for
The working condition of monitoring filtering mechanism after a filter mechanism filter action of completion is monitored, opens solenoid valve and carries out water filling,
To start filtering next time；The filter mechanism includes control module, and the control module is connected with CAN communication module, and passes through
The operating state data of filter mechanism is sent to host computer by CAN communication module.
Further, the filter mechanism is filter press, including：Stent, first driving means, mistake on the stent
Filter device and limiting device；Wherein described filter device includes：Drainage channel and the both side plate being oppositely arranged；On the both side plate
Equipped with filter cloth, to form filtering chamber；Extendible knockout pin is wherein additionally provided on side plate and is connected with the Extendible knockout pin
Two driving devices；First, second driving device is controlled by the control module；And when sewage enters filtering chamber
Afterwards, the first driving means drive the filter device to be moved towards limiting device, to compress filter device, make drainage through filter
Cloth is penetrated into drainage channel；If filter cloth blocks, second driving device drives Extendible knockout pin towards another side plate
Direction is stretched out, and to increase the spacing of both side plate, when making the drainage in drainage channel through filter cloth by resorption to filtering chamber, is washed away
Fall the attachment on filter cloth.
Further, the upper end of each side plate is equipped with upward extension, and lower end is equipped with downward extension；The retractable top
Bar is four, respectively positioned at four vertex of side plate.
Further, wherein side plate be equipped with water inlet, another side plate be equipped with water outlet, the sewage from it is described enter water
Mouth enters filtering chamber.
Further, the pressure sensor being connected with the control module is equipped in the filtering chamber；The pressure sensing
Device is located at the top of the water inlet, and suitable for the detection indoor pressure value of filter chamber in real time；When the indoor pressure value of filter chamber
During beyond the pressure threshold of setting, the control module controls the second driving device to drive Extendible knockout pin towards another side plate side
To stretching, to increase the spacing of both side plate, when making the drainage in drainage channel through filter cloth by resorption to filtering chamber, wash away
Attachment on filter cloth.
Further, the water inlet is equipped with a check valve, to prevent the sewage in filtering chamber from being flow backwards from water inlet
It goes out.
Further, the filtering chamber is several；The filtering chamber is connected between any two by a connecting rod, and
The water outlet of one filtering chamber is connected with the water inlet of another filtering chamber；When sewage enters water from first filtering chamber
After mouth enters in first filtering chamber, when sewage highly is more than water outlet, the sewage flows into down from the water outlet
In one filtering chamber, and so on, until being marked with sewage in all filtering chamber.
Further, the drainage channel includes the drip chamber between Liang Ge filtering chamber；The drip chamber is equipped with row
The mouth of a river, the discharge outlet are connected by a drainage pipeline with collecting-tank；After water sewage enters filtering chamber, the first driving dress
It puts the driving filter device to move towards limiting device, to compress filter device, drainage is made to be penetrated into through filter cloth to drip chamber,
It is flowed into collecting-tank from discharge outlet through drainage pipeline again.
Another aspect, the present invention also provides a kind of method of work of filtration system, including：Sewage feed mechanism and filtering
Mechanism；Wherein described sewage feed mechanism includes：Cesspool, suitable for by cesspool sewage access filter mechanism feed pipe with
And the pre-filtering mechanism at the water supply water inlet tube；And the pre-filtering mechanism is big in sewage suitable for filtering out in advance
Granular solids impurity.
The invention has the advantages that the filtration system and its method of work of the present invention in sewage feed mechanism by setting
Pre-filtering mechanism is put, the bulky grain solid impurity in sewage is filtered out in advance, can prevent bulky grain solid impurity from entering filter chamber
Wear filter cloth in room, it is ensured that filter effect extends the service life of filter cloth.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the functional block diagram of the filtration system of the present invention；
Fig. 2 is the structure diagram of the filter press in the filtration system of the present invention；
Fig. 3 is the structure diagram of the two of which filtering chamber of the filter press in the filtration system of the present invention.
Wherein：
Stent 1, filter device 3, filtering chamber 31, filter cloth 32, the first side plate 331, the first side plate 332, enters water at driving device 2
Mouth 341, water outlet 342, drip chamber 35, discharge outlet 350, check valve 36, pressure sensor 37, Extendible knockout pin 38, second drive
Dynamic device 39, limiting device 4, inlet channel 5, drainage pipeline 6, collecting-tank 7.
Specific embodiment
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 composition related to the present invention.
Embodiment 1
Fig. 1 is the functional block diagram of the filtration system of the present invention.
As shown in Figure 1, the present embodiment 1 provides a kind of filtration system, including：Sewage feed mechanism and filter mechanism；Its
Described in sewage feed mechanism include：Cesspool, suitable for by cesspool sewage access filter mechanism feed pipe and be located at
Pre-filtering mechanism at the water supply water inlet tube；And the bulky grain that the pre-filtering mechanism is suitable for filtering out in advance in sewage is consolidated
Body impurity.
Specifically, the pre-filtering mechanism is such as, but not limited to strainer, it, can be according to the solid in sewage in practical application
Impurity size selects the strainer of dimension；By pre-filtering mechanism, the bulky grain solid impurity in sewage is filtered out in advance, it can
It prevents bulky grain solid impurity from entering in filter mechanism by feed pipe, wears the filtration members of filter mechanism.
The filtration system further includes host computer；The feed pipe is equipped with solenoid valve；The host computer is suitable for monitoring
The working condition of filter structure after a filter mechanism filter action of completion is monitored, opens solenoid valve and carries out water filling, to start
Filtering next time；The filter mechanism includes control module, and the control module is connected with CAN communication module, and passes through CAN communication
The operating state data of filter mechanism is sent to host computer by module.
Filter press has obtained more and more extensive as a kind of ideal suspension solid-liquid separating equipment in field of industrial production
Application.Therefore, the filter mechanism of the present embodiment uses filter press.
But in practical applications, the filter cloth of filter press easily blocks, and filter cloth gradually blocks, when filter cloth blocks one
During part, although water still can discharge, need to waste a large amount of energy；Currently used Conventional cleaning method is：
Using the automatic high pressure cleaning device that filter press is subsidiary after filter press has worked, due to the difference of filter medium, thoroughly clean
Period and cleaning complexity will be different, the artificial stopping state to filter cloth is needed to be monitored, is taken time and effort,
And it is once completely plugged during the work time, then it is very troublesome.
Fig. 2 is the structure diagram of the filter press in the filtration system of the present invention.
Fig. 3 is the structure diagram of the two of which filtering chamber of the filter press in the filtration system of the present invention.
Therefore, it is as shown in Figures 2 and 3, described in order to solve the problems, such as that filter cloth easily blocks filter press at work
Filter press includes：Stent 1, first driving means 2, filter device 3 and limiting device 4 on the stent 1；Wherein described mistake
Filter device 3 includes：Drainage channel and the both side plate being oppositely arranged；The both side plate is equipped with filter cloth 32, to form filtering chamber
31；The second driving device 39 that Extendible knockout pin 38 is wherein additionally provided on side plate and is connected with the Extendible knockout pin；Described
First, the second driving device is controlled by the control module；And after sewage enters filtering chamber, the first driving means
The 2 driving filter devices 3 are moved towards limiting device 4, to compress filter device 3, drainage are made to be penetrated into through filter cloth 32 to draining
In channel；If filter cloth 32 blocks, second driving device 39 drives Extendible knockout pin 38 to be stretched towards another side plate direction
Go out, to increase the spacing of both side plate, when making the drainage in drainage channel through filter cloth 32 by resorption to filtering chamber 31, wash away
Attachment on filter cloth 32.
Specifically, the first driving means 2 are such as, but not limited to using hydraulic pump；The limiting device 4 is for example but not
It is limited to the limiting plate being vertically arranged；Both side plate is the first side plate 331 and the second side plate 332, and the Extendible knockout pin 38 can be with
It is located on the first side plate 331, can also be located on the second side plate 332, the present embodiment is arranged on the first side with Extendible knockout pin 38
For on plate 331.
The upper end of each side plate is equipped with upward extension, and lower end is equipped with downward extension；The Extendible knockout pin is four
It is a, respectively positioned at four vertex of side plate.
Specifically, Extendible knockout pin 38 is corroded in sewage in order to prevent, the upper end of each side plate is equipped with prolongs upwards
Long portion, lower end are equipped with downward extension, so that the Extendible knockout pin 38 is set on extension.
Specifically, the Extendible knockout pin 38 is such as, but not limited to four, and it is separately positioned on the four of the first side plate 331
A vertex；The Extendible knockout pin 38 can resist the second side plate 332, with the increasing of extension elongation during stretching
Add, the second side plate 332 can be pushed to move, so as to increase the distance between the first side plate 331 and the second side plate 332, pass through setting
Four mandrils, can be more uniformly stressed the second side plate 332, to prevent 332 discontinuity of the second side plate and run-off the straight,
Cause movement not smooth.
Wherein side plate is equipped with water inlet, and another side plate is equipped with water outlet, and the sewage enters from the water inlet
Filtering chamber.
Specifically, in the present embodiment, the water inlet 341 is located on the first side plate 331, the water outlet 342 is located at
On second side plate 332；The sewage enters from the water inlet 341 in filtering chamber 31 through inlet channel 5.
The pressure sensor 37 being connected with the control module is equipped in the filtering chamber 31；The pressure sensor 37
Positioned at the top of the water inlet 341, and suitable for the pressure value in the filtering chamber 31 of detection in real time；Pressure in filtering chamber 31
When force value is beyond the pressure threshold of setting, the control module controls the second driving device 39 to drive Extendible knockout pin 38 towards another
Side plate direction is stretched out, and to increase the spacing of both side plate, makes the drainage in drainage channel through filter cloth 32 by resorption to filtering chamber
When interior, the attachment on filter cloth 32 is washed away.
Specifically, the pressure sensor 37 is located at the top of the water inlet 341, the sludge etc. in sewage can be prevented
Impurity adheres to the surface of pressure sensor, and pressure value can not accurately be detected by causing stress sensor；The pressure threshold of the setting
Value is such as, but not limited to 0.3MPA-3MPA, and those skilled in the art can suitably adjust the pressure of the setting according to actual state
Force threshold.
In the present embodiment, the indoor pressure value of filter chamber detected in order to ensure pressure sensor is accurate, described
A check valve 36 is equipped at the water inlet 341 of filtering chamber 31, to prevent the sewage in filtering chamber 31 from being fallen at water inlet 341
Stream outflow, and cause the pressure value in filtering chamber 31 inaccurate.
The filtering chamber 31 is several；The filtering chamber is connected between any two by a connecting rod, and one
The water outlet of filtering chamber is connected with the water inlet of another filtering chamber；When sewage from the water inlet of first filtering chamber into
After entering in first filtering chamber, when sewage highly is more than water outlet, the sewage flows into next from the water outlet
In filtering chamber, and so on, until being marked with sewage in all filtering chamber.
Specifically, the filtering chamber of inlet channel 5 will be positioned close to as first filtering chamber, the sewage pass through into
Waterpipe 5 enters first filtering chamber from the water inlet of first filtering chamber, when the sewage highly of injection is more than water outlet
When, continue to inject sewage, sewage is made to flow into next filtering chamber from water outlet, and so on, until in the filtering chamber
Sewage is marked with, then stops injecting sewage.
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 drainage channel includes the drip chamber 35 between Liang Ge filtering chamber；The drip chamber 35 is equipped with discharge outlet
350, which is connected by a drainage pipeline 6 with collecting-tank 7；After sewage enters filtering chamber 31, described first drives
Dynamic device 2 drives the filter device 3 to be moved towards limiting device 4, to compress filter device 3, drainage is made to be penetrated into through filter cloth 32
It is flowed into collecting-tank 7 to drip chamber 35, then from discharge outlet 350 through drainage pipeline 6.
The high point of the drainage pipeline 6 is higher than the top of filter device 3；Water is previously provided in the collecting-tank 7, and makes institute
The outlet for stating drainage pipeline 6 is located at underwater, corresponding Extendible knockout pin 38 to be driven to stretch out in the second driving device 2, to increase
During the spacing of big first side plate, 331 and second side plate 332, there is enough water that can be back to through drainage pipeline 6 in collecting-tank 7
In filter chamber room, so as to wash away the attachment on filter cloth 32.
The operation principle of the filter press of the present embodiment is as follows：
Sewage is pumped into first filtering chamber, and continue to inject by inlet channel 5, until all filtering chamber note
There is sewage；Then control first driving means 2 that filter device 3 is driven to be moved towards limiting device 4 by control module, to compress
Filter device 3 makes drainage be penetrated into through filter cloth 32 to drip chamber 35, then flows into collecting-tank 7 from discharge outlet 350 through drainage pipeline 6
Interior, filter residue is then stopped by filter cloth 32 and stays in filtering chamber；If the filter cloth of any filtering chamber blocks, with the first drive
Dynamic device 2 constantly compresses filter device 3, and the indoor drainage of filter chamber blocked can not be oozed out or be oozed out very slowly, make the mistake
The indoor pressure of filter chamber constantly increases, when the indoor pressure sensor of the filter chamber detects that pressure increases to the pressure beyond setting
During force threshold, then control module controls the second driving device 39 that corresponding Extendible knockout pin 38 is driven to stretch out, to increase the first side
The spacing of 331 and second side plate 332 of plate makes the filtering chamber generate negative pressure, by the water in collecting-tank 7 successively through drainpipe
Road, drip chamber, filter cloth are sucked into filtering chamber, and during water flows back, water can wash away attached on filter cloth from the negative
Enter in filtering chamber after object, that is, solve the blockage problem of filter cloth, during water flows back, make corresponding retractable top
Bar keeps stretching state for a period of time（Such as 5-30s）, then corresponding Extendible knockout pin is driven to contract by the second driving device again
It returns, so that first driving means 2 continue that filter device 3 is driven to move towards limiting device 4, until discharging all drainages.
The filter press of the present embodiment can be stretched accordingly when the filter cloth of any filtering chamber is blocked by driving
Contracting mandril stretches out, and increases the spacing of both side plate, the filtering chamber blocked is made to generate negative pressure, so as to which the water in collecting-tank be made to fall
Stream, the water of refluence enter after washing away the attachment on filter cloth from the negative in filtering chamber, so as to solve asking for filter cloth blocking
Topic, while during blockage problem is solved, do not interfere with other filtering chamber not blocked, substantially increase work
Efficiency；The filter press of the present embodiment can be ensured that filter cloth remains logical during the work time by simple anti-blockage structure
Smooth state, further improves working efficiency.
The travel switch being connected with the control module is additionally provided on the stent 1, the travel switch is mounted on first
Driving device 2 is on the direction that limiting device 4 moves, when first driving means 2 drive filter device 3 to be moved towards limiting device 4
Dynamic, the indoor drainage of filter chamber is constantly discharged, and until first driving means 2 touch the travel switch, then judges to filter
The indoor drainage of chamber is all discharged, i.e., this filtration is completed, then by the control module by this filtration
The signal of completion is sent to host computer, after host computer receives corresponding signal, the solenoid valve on feed pipe is controlled to open, with to pressure
Filter continues to inject sewage, to start filtering next time.
The filtration system of the present invention is filtered out in sewage in advance by setting pre-filtering mechanism in sewage feed mechanism
Bulky grain solid impurity can prevent bulky grain solid impurity from entering filtering chamber, avoid in filter process, and bulky grain solid is miscellaneous
Matter friction filter cloth, and influence filter effect and reduce the service life of filter cloth.
Embodiment 2
On the basis of embodiment 1, the present embodiment 2 provides a kind of method of work of filtration system, including：Sewage feed mechanism
And filter mechanism；Wherein described sewage feed mechanism includes：Cesspool, the confession suitable for sewage in cesspool to be accessed to filter mechanism
Water pipe and the pre-filtering mechanism at the water supply water inlet tube；And the pre-filtering mechanism is suitable for filtering out sewage in advance
In bulky grain solid impurity.
Filtration system has been described in detail in embodiment 1 in the present embodiment, is not repeating herein.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned 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 content on specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of filtration system, which is characterized in that including：
Sewage feed mechanism and filter mechanism；Wherein
The sewage feed mechanism includes：Cesspool, feed pipe and position suitable for sewage in cesspool to be accessed to filter mechanism
Pre-filtering mechanism at the water supply water inlet tube；And
The pre-filtering mechanism is suitable for filtering out the bulky grain solid impurity in sewage in advance.
2. filtration system according to claim 1, which is characterized in that
The filtration system further includes host computer；
The feed pipe is equipped with solenoid valve；
The host computer is suitable for the working condition of monitoring filtering mechanism, after a filter mechanism filter action of completion is monitored,
It opens solenoid valve and carries out water filling, to start filtering next time；
The filter mechanism includes control module, and the control module is connected with CAN communication module, and passes through CAN communication module
The operating state data of filter mechanism is sent to host computer.
3. filtration system according to claim 2, which is characterized in that
The filter mechanism is filter press, including：
Stent, first driving means, filter device and limiting device on the stent；Wherein
The filter device includes：Drainage channel and the both side plate being oppositely arranged；
The both side plate is equipped with filter cloth, to form filtering chamber；
Extendible knockout pin and the second driving device being connected with the Extendible knockout pin are wherein additionally provided on side plate；
First, second driving device is controlled by the control module；And
After sewage enters filtering chamber, the first driving means drive the filter device to be moved towards limiting device, with
Filter device is compressed, drainage is made to be penetrated into through filter cloth to drainage channel；
If filter cloth blocks, the second driving device driving Extendible knockout pin is stretched out towards another side plate direction, with increase
The spacing of both side plate when making the drainage in drainage channel through filter cloth by resorption to filtering chamber, washes away the attachment on filter cloth
Object.
4. filtration system according to claim 3, which is characterized in that
The upper end of each side plate is equipped with upward extension, and lower end is equipped with downward extension；
The Extendible knockout pin is four, respectively positioned at four vertex of side plate.
5. filtration system according to claim 4, which is characterized in that
Wherein side plate is equipped with water inlet, and another side plate is equipped with water outlet, and the sewage enters filtering from the water inlet
Chamber.
6. filtration system according to claim 5, which is characterized in that
The pressure sensor being connected with the control module is equipped in the filtering chamber；
The pressure sensor is located at the top of the water inlet, and suitable for the detection indoor pressure value of filter chamber in real time；
When pressure threshold of the indoor pressure value of filter chamber beyond setting, the control module controls the driving of the second driving device
Extendible knockout pin is stretched out towards another side plate direction, to increase the spacing of both side plate, makes the drainage in drainage channel through filter cloth quilt
When in resorption to filtering chamber, the attachment on filter cloth is washed away.
7. filtration system according to claim 6, which is characterized in that
The water inlet is equipped with a check valve, to prevent the sewage in filtering chamber from being flow backwards away from water inlet.
8. filtration system according to claim 7, which is characterized in that
The filtering chamber is several；
The filtering chamber is connected between any two by a connecting rod, and the water outlet of a filtering chamber and another filtering
The water inlet of chamber 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.
9. filtration system according to claim 8, which is characterized in that
The drainage channel includes the drip chamber between Liang Ge filtering chamber；
The drip chamber is equipped with discharge outlet, which is connected by a drainage pipeline with collecting-tank；
After water sewage enters filtering chamber, the first driving means drive the filter device to be moved towards limiting device,
To compress filter device, drainage is made to be penetrated into through filter cloth to drip chamber, then flowed into collecting-tank from discharge outlet through drainage pipeline.
10. a kind of method of work of filtration system, which is characterized in that including：
Sewage feed mechanism and filter mechanism；Wherein
The sewage feed mechanism includes：Cesspool, feed pipe and position suitable for sewage in cesspool to be accessed to filter mechanism
Pre-filtering mechanism at the water supply water inlet tube；And
The pre-filtering mechanism is suitable for filtering out the bulky grain solid impurity in sewage in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036046.7A CN108245949A (en) | 2018-01-15 | 2018-01-15 | A kind of filtration system and its method of work with pre-filter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036046.7A CN108245949A (en) | 2018-01-15 | 2018-01-15 | A kind of filtration system and its method of work with pre-filter function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245949A true CN108245949A (en) | 2018-07-06 |
Family
ID=62727238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810036046.7A Withdrawn CN108245949A (en) | 2018-01-15 | 2018-01-15 | A kind of filtration system and its method of work with pre-filter function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489480A (en) * | 2020-04-24 | 2020-08-04 | 中科院成都信息技术股份有限公司 | Ballot box with openable ballot recognition device |
| CN112717497A (en) * | 2020-12-25 | 2021-04-30 | 泉州市创绿机械工贸有限公司 | Full-automatic sludge treatment membrane filter press |
-
2018
- 2018-01-15 CN CN201810036046.7A patent/CN108245949A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489480A (en) * | 2020-04-24 | 2020-08-04 | 中科院成都信息技术股份有限公司 | Ballot box with openable ballot recognition device |
| CN112717497A (en) * | 2020-12-25 | 2021-04-30 | 泉州市创绿机械工贸有限公司 | Full-automatic sludge treatment membrane filter press |
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Application publication date: 20180706 |
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