CN105561645B - A kind of dentation formula pressurize filter-pressing method - Google Patents
A kind of dentation formula pressurize filter-pressing method Download PDFInfo
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- CN105561645B CN105561645B CN201610048529.XA CN201610048529A CN105561645B CN 105561645 B CN105561645 B CN 105561645B CN 201610048529 A CN201610048529 A CN 201610048529A CN 105561645 B CN105561645 B CN 105561645B
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- 238000003825 pressing Methods 0.000 title claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 49
- 230000011218 segmentation Effects 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 claims abstract description 30
- 238000005056 compaction Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 52
- 238000012423 maintenance Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 abstract description 10
- 238000006297 dehydration reaction Methods 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 16
- 238000007599 discharging Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010926 purge Methods 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
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/202—Systems for applying pressure to filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
A kind of dentation formula pressurize filter-pressing method, a kind of dentation formula pressurize filter-pressing method, including pre-compaction process, fill process, single pressing process and twice pressing process, the twice pressing process is segmentation dentation formula press dewatering process, driving hydraulic cylinder action makes the pressure value in each segmentation gradually increase, when squeeze pressure value reaches the first pressure value of setting, driving hydraulic cylinder acts the second pressure value that squeeze pressure value is reduced to setting, into next segmentation.A kind of dentation formula pressurize filter-pressing method of present invention proposition and its equipment; the pressure of the hydraulic cylinder is set to can be at steady increased state; avoid the unstability due to cylinder pressure; and material and filter press plate is made to have obtained certain of short duration buffering course during being squeezed; filter press plate is played a certain protective role; the material dewatering effect is greatly improved, dehydration is stable, dehydration efficiency is high and saves resource.
Description
Technical field
The present invention relates to press filtration technical field of solid-liquid separation equipment more particularly to a kind of dentation formula pressurize filter-pressing methods.
Background technology
Filter press is a kind of equipment being separated by solid-liquid separation material by pressure filtration, be widely used in food, chemical industry,
The industries such as environmental protection and sewage disposal have unique superiority especially for the separation for gluing thin object.For example, chemical industry and life
The sludge that sewage disposal generates, moisture content are very high, it is necessary to pass through dehydration, reducing volume can just emit.If by de-
Water process, then 50% or more volume decrement, energy consumption reduction, can significantly reduce the cost of enterprise's Treatment of Sludge and reduces landfill yard
Ground.
Traditional filter press is classified according to filter type：Chamber filter press, belt filter press, membrane pressure filter and sheet frame
Formula filter press.Be commonly used in sludge dewatering field at present is plate and frame type filter-press, and traditional plate and frame type filter-press includes hydraulic pressure dress
It sets and filter-pressing device, the filter-pressing device includes multigroup end to end filter plate, feed opening and material cavity, charging are equipped in filter plate
Hole is communicated with material cavity, in use, material is evacuated in material cavity and is filled up from feed opening by feed pump, using in material cavity
The confined space material dewatering is made with smaller pressure, and hydraulic device is mainly to play by the filter plate limit of filter plate in filter press,
It prevents filter plate from loosening, plays pressure maintaining effect, its drainage effect is not very ideal by the material of this filter press institute press filtration, pressure
The pressure control of squeezing is unstable, and moisture content is less able to be reduced to 50% after squeezing, and drainage time is long, and efficiency is not high enough.
Therefore the pressure influence of squeezing the press dewatering effect to material and controls institute in filter press operational process
The pressure of hydraulic cylinder is stated, and raising makes the effective way that material is fully dehydrated between filter press plate.
Invention content
It is an object of the invention to propose a kind of stable, efficient, easy to operate simple dentation formula pressurize press filtration of dehydration
Method.
Another object of the present invention is to propose a kind of filtering equipment for the dentation formula pressurize press filtration that dehydrating effect is good.
For this purpose, the present invention uses following technical scheme：
A kind of dentation formula pressurize filter-pressing method, including pre-compaction process, fill process, single pressing process and twice pressing mistake
Journey, the twice pressing process are segmentation dentation formula press dewatering process, and driving hydraulic cylinder action makes the pressure value in each segmentation
It gradually increases, when squeeze pressure value reaches the first pressure value of setting, squeeze pressure value is reduced to by driving hydraulic cylinder action
The second pressure value of setting, into next segmentation.
It further illustrating, each first pressure value in the expressing process being respectively segmented increases paragraph by paragraph from front to back, and
The pressure increment being respectively segmented is identical, and the entire pressure change difference during the twice pressing is 110-250kg.
It further illustrates, the single pressing process is：Under the power effect of the product pump, to the press filtration space
In material squeezed, the pressure of the hydraulic cylinder is upgraded to 100-120kg.
It further illustrates, the pre-compaction process includes the following steps：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 13-15kg, push plate maintenance.
It further illustrates, in fill process, if the power effect of product pump is insufficient to allow the pressure liter of the hydraulic cylinder
For 100-120kg, then continue to feed again, until the pressure for making to reach the hydraulic cylinder.
It further illustrates, after twice pressing process, further includes blow cores step, the moistening in the press filtration space will be remained on
Material is blown off.
A kind of filtering equipment of dentation formula pressurize press filtration, including several sequentially connected filter plates, and be connected to
The hydraulic cylinder and product pump at the filter plates both ends, the filter plates include that mainboard, subplate and secondary frame, the subplate are set to institute
The front side of mainboard is stated, the inner space of the pair frame is filter chamber, and the pair frame is set in the mainboard and can phase with the mainboard
To movement, the filter chamber is made to become the press filtration space of variable volume；
The mainboard and subplate are equipped with material channel, and elastic element and position limiting structure are equipped between the mainboard and secondary frame.
It further illustrates, the draining air inlet towards mainboard front side and rear side is respectively equipped on the mainboard, is used for
Draining and air inlet discharging, the draining air inlet connection draining air inlet pipe, the other end of the draining air inlet pipe are connected to draining
Inlet manifold；The draining air inlet pipe both sides are also separately provided with autocontrol valve.
It further illustrates, the draining inlet manifold both sides are provided with air inlet total valve and the draining total valve.
It further illustrates, filter cloth is further respectively had on front side of the rear side of the mainboard and the subplate, to the automatic control
Valve processed is blown with abundant discharging.
Beneficial effects of the present invention：The present invention proposes a kind of dentation formula pressurize filter-pressing method, makes the pressure of the hydraulic cylinder
Steady increased state is can be at, avoids the unstability due to cylinder pressure, and material and filter press plate is made to be pressed
Certain of short duration buffering course has been obtained during squeezing, filter press plate has been played a certain protective role, and greatly improves the object
Expect dehydrating effect, dehydration is stable, dehydration efficiency is high and saves resource.
Description of the drawings
Fig. 1 is the structural schematic diagram of the filter plates of one embodiment of the invention；
Fig. 2 is the sectional view of the filter plates of one embodiment of the invention；
Fig. 3 is a kind of structural schematic diagram of the filtering equipment of dentation formula pressurize press filtration of one embodiment of the invention；
Fig. 4 is the pressure value change curve of the twice pressing of one embodiment of the invention；
Wherein：Mainboard 1, subplate 2, secondary frame 3, filter chamber 31, material channel 4, elastic element 5, position limiting structure 6 drain air inlet
Mouth 7, draining air inlet pipe 71, autocontrol valve 72, draining inlet manifold 8, air inlet total valve 81, the draining total valve 82,
Filter cloth 9.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
A kind of dentation formula pressurize filter-pressing method, including pre-compaction process, fill process, single pressing process and twice pressing mistake
Journey, the twice pressing process are segmentation dentation formula press dewatering process, and driving hydraulic cylinder action makes the pressure value in each segmentation
It gradually increases, when squeeze pressure value reaches the first pressure value of setting, squeeze pressure value is reduced to by driving hydraulic cylinder action
The second pressure value of setting, into next segmentation.
During to the press dewatering of material, the pressure influence of press filtration the press dewatering effect to material, therefore wants
The pressure for controlling the hydraulic cylinder makes material that can be more fully dehydrated between filter press plate.In the prior art, Patent No.
201510066545.7 disclose the pressing method by variable displacement type filter press, and multiple points are divided into during twice pressing
Section press dewatering process, each segmentation pressurize under the pressure value of setting squeezing is dehydrated certain time, in this pressurize dewatering time mistake
Cheng Zhong, squeeze pressure decline because being squeezed object dehydration, and when squeeze pressure value drops to the pressure difference value of setting, hydraulic cylinder is dynamic
The squeeze pressure value for making to reach setting continues press dewatering, until the squeezing time of the setting stepwise, into next segmentation
Press dewatering process；And a kind of dentation formula pressurize filter-pressing method proposed by the present invention, the difference is that during twice pressing, it will
The twice pressing is set as segmentation dentation formula press dewatering process, and in each segmentation, sets first pressure value and the
Two pressure values, when squeeze pressure value reaches the first pressure value of setting, squeeze pressure value is reduced to by driving hydraulic cylinder action
The second pressure value of setting, enters back into the second segmentation, therefore it makes the pressure of the hydraulic cylinder can be at dentation formula steadily to increase
State, avoid the unstability of above-mentioned prior art cylinder pressure, and make material and filter press plate in the mistake being squeezed
Certain of short duration buffering course has been obtained in journey, filter press plate has been played a certain protective role, and greatly improves the material dewatering
Effect, dehydration is stable, dehydration efficiency is high and saves resource.
It further illustrating, each first pressure value in the expressing process being respectively segmented increases paragraph by paragraph from front to back, and
The pressure increment being respectively segmented is identical, and the entire pressure change difference during the twice pressing is 110-250kg.
When carrying out twice pressing, sealing performance between the filter press plate can by certain punching press, if moment or
It is pressurized to unstability, often causes the destruction of multiple pressure filter plate, influence its sealing performance etc., therefore by the squeezing of each segmentation
First pressure value increases paragraph by paragraph from front to back and pressure increment is identical, can be more fully dehydrated, and makes to squeeze material
Effect more fully, uniformly, and can also protect filtering equipment, extend its service life.
It further illustrates, the single pressing process is：Under the power effect of the product pump, to the press filtration space
In material squeezed, the pressure of the hydraulic cylinder is upgraded to 100-120kg.
It further illustrates, the pre-compaction process includes the following steps：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 13-15kg, push plate maintenance.
It further illustrates, after carrying out pre-compaction process, then carries out fill process, include the following steps：Product pump will wait pressing
The material of filter is pumped into press filtration space by material channel, and the pressure of the hydraulic cylinder is upgraded to 60-80kg, and pressurize；By described
The power effect of product pump is lower to carry out single pressing, then carries out the twice pressing of segmentation dentation formula, and the squeezing completed to material is de-
After water, push plate is retreated and is returned, press filtration sheet reset, discharging；By above-mentioned dentation formula pressurize filter-pressing method, water-break effect is squeezed
Obviously, easy to operate.
It further illustrates, in fill process, if the power effect of product pump is insufficient to allow the pressure liter of the hydraulic cylinder
For 100-120kg, then continue to feed again, until the pressure for making to reach the hydraulic cylinder.
For the squeezing effect for ensureing in squeezing to material, the pressure size of the hydraulic cylinder is equilibrated at the product pump
Power size then needs under conditions of so that the hydraulic cylinder is reached certain pressure, just the material can be made in the product pump
Power effect, the material is squeezed, therefore when the effect of the power of product pump is insufficient to allow the pressure of the hydraulic cylinder
Reach certain standard, then can feed again repeatedly, improves the dehydrating effect to material in the expressing process.
It further illustrates, after twice pressing process, further includes blow cores step, the moistening in the press filtration space will be remained on
Material is blown off.
After dentation formula pressurize twice pressing, when carrying out discharging, often remained on the inner wall in the press filtration space
Part is the moistening material being fully dehydrated, therefore by blow cores, is blown off using purge gas, to keep discharging more clean
Fully.
As shown in figure 3, a kind of filtering equipment of dentation formula pressurize press filtration, including several sequentially connected filter plates, and
It is connected to the hydraulic cylinder and product pump at the filter plates both ends, the filter plates include mainboard 1, subplate 2 and secondary frame 3, institute
The front side that subplate 2 is set to the mainboard 1 is stated, the inner space of the pair frame 3 is filter chamber 31, and the pair frame 3 is set in described
It mainboard 1 and can be relatively moved with the mainboard 1, the filter chamber 31 is made to become the press filtration space of variable volume；
As shown in Figure 1, the mainboard 1 and subplate 2 are equipped with material channel 4, elasticity is equipped between the mainboard 1 and secondary frame 3
Element 5 and position limiting structure 6.
Several sequentially connected filter plates are carried out compression closing by the filtering equipment of the dentation formula pressurize press filtration first,
And pressurize maintenance is carried out by the hydraulic cylinder, material is inputted by the material channel 4 in filter chamber 31 by the product pump,
It fills up press filtration space, and is acted on using the power of the product pump and carry out first time squeezing, then after continuing stress to press filtration board group,
The pressure of the hydraulic cylinder increases, and the filter chamber 31 of variable volume and is squeezed by the compression of the mainboard 1, subplate 2 and secondary frame 3
The elastic element 5 is pressed, to carry out twice pressing to the filter plates, after squeezing, the filter plates reset, and pass through
The position limiting structure 6 limits the moving range of the secondary frame 3；Material dewatering effect after being squeezed by this filtering equipment
It is good, it is efficient, easy to operate simple.
As shown in Fig. 2, further illustrating, the draining towards 1 front side and rear side of the mainboard is respectively equipped on the mainboard 1
Air inlet 7 drains air inlet pipe 71 for draining with air inlet discharging, the connection of draining air inlet 7, the draining air inlet pipe 71
The other end is connected to draining inlet manifold 8；71 both sides of draining air inlet pipe are also separately provided with autocontrol valve 72.
When press filtration drains, the water being discharged after press filtration is drained from the draining air inlet pipe 71；In discharging air inlet, the row
Water air inlet pipe 71 can each lead into the high pressure gas of different air sources, and the effect of discharging is improved by high pressure blow-gas, improve unloading efficiency
And effect, the utilization rate calmed the anger is improved, is worked independently by controlling the autocontrol valve 72, improves drainage effect
And unloading efficiency.
It further illustrates, 8 both sides of draining inlet manifold are provided with air inlet total valve 81 and the draining total valve 82.
When press filtration drains, the air inlet total valve 81 is closed, the opening of draining total valve 82, make water from it is described drain into
Tracheae 71 is drained；And when discharging air inlet, the air inlet total valve 81 is opened, and the draining total valve 82 is closed, and makes the row
Water air inlet pipe 63 is passed through high pressure gas, and the conflict for avoiding the occurrence of draining and entering efficiently controls efficiency of press filtering and the dehydration of material
Efficiency.
It further illustrates, the front side of the rear side of the mainboard 1 and the subplate 2 further respectively has filter cloth 9, to described automatic
Control valve 72 is blown with abundant discharging.
In discharging, the filter plates are pulled open, the autocontrol valve 72 is opened, thus to the draining air inlet pipe
71 are passed through high pressure gas, then the filter cloth on the inside of the opposite filter plates in two pieces of positions can fully be heaved, and can reach abundant discharging
Effect, improve unloading efficiency.
A kind of embodiment 1-dentation formula pressurize filter-pressing method, includes the following steps：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 13kg, push plate maintenance；
(3) material for waiting for press filtration is pumped into press filtration space by product pump by material channel, and the pressure of the hydraulic cylinder is upgraded to
60kg, and pressurize；
(4) under the effect of the power of the product pump, single pressing, the liquid are carried out to the material in the press filtration space
The pressure of cylinder pressure is upgraded to 100kg；
(5) push plate continues forward, segmentation dentation formula twice pressing is carried out after filter press plate stress again, by the hydraulic cylinder
Pressure value variation range is divided into 3 segmentations, and the pressure value in each segmentation gradually increases, and is 110-150kg, 150- respectively
190kg, 190-230kg；Setting first pressure value and second pressure value in each segmentation, the first segmentation supercharging, when squeeze pressure value
When reaching the first pressure value 150kg of setting, driving hydraulic cylinder acts the second pressure value that squeeze pressure value is reduced to setting
When 145kg, second segmentation, third segmentation are entered back into.
(6) after the completion of squeezing, push plate, which retreats, to be returned, press filtration sheet reset, discharging.
As shown in figure 4, a kind of embodiment 2-dentation formula pressurize filter-pressing method, includes the following steps：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 14kg, push plate maintenance；
(3) material for waiting for press filtration is pumped into press filtration space by product pump by material channel, and the pressure of the hydraulic cylinder is upgraded to
73kg, and pressurize；
(4) under the effect of the power of the product pump, the material in the press filtration space is squeezed, the hydraulic cylinder
Pressure be upgraded to 115kg；
(5) push plate continues forward, segmentation dentation formula twice pressing is carried out after filter press plate stress again, by the hydraulic cylinder
Pressure value variation range is divided into 3 segmentations, and the pressure value in each segmentation gradually increases, and is 130-160kg, 160- respectively
190kg, 190-220kg；Setting first pressure value and second pressure value in each segmentation, the first segmentation supercharging, when squeeze pressure value
When reaching the first pressure value 160kg of setting, driving hydraulic cylinder acts the second pressure value that squeeze pressure value is reduced to setting
When 155kg, second segmentation, third segmentation are entered back into.
(6) after the completion of squeezing, push plate, which retreats, to be returned, press filtration sheet reset, discharging.
A kind of embodiment 3-dentation formula pressurize filter-pressing method, includes the following steps：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 15kg, push plate maintenance；
(3) material for waiting for press filtration is pumped into press filtration space by product pump by material channel, and the pressure of the hydraulic cylinder is upgraded to
80kg, and pressurize；
(4) under the effect of the power of the product pump, the material in the press filtration space is squeezed, the hydraulic cylinder
Pressure be upgraded to 120kg；
(5) push plate continues forward, segmentation dentation formula twice pressing is carried out after filter press plate stress again, by the hydraulic cylinder
Pressure value variation range is divided into 4 segmentations, and the pressure value in each segmentation gradually increases, and is 110-145kg, 145- respectively
180kg, 180-215kg, 215-250kg；Setting first pressure value and second pressure value in each segmentation, the first segmentation supercharging, when
When squeeze pressure value reaches the first pressure value 145kg of setting, squeeze pressure value is reduced to setting by driving hydraulic cylinder action
When second pressure value 140kg, second segmentation, third segmentation are entered back into.
(6) after the completion of squeezing, blow cores is also carried out, blows the moistening material remained in the press filtration space off, push plate retreats
It returns, press filtration sheet reset, discharging.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (4)
1. a kind of dentation formula pressurize filter-pressing method, including pre-compaction process, fill process, single pressing process and twice pressing mistake
Journey, it is characterised in that：The pre-compaction process, fill process, single pressing process and twice pressing process are protected by a kind of dentation formula
It presses the filtering equipment of press filtration to realize that the filtering equipment includes several sequentially connected filter plates, and is connected to described
The hydraulic cylinder and product pump at filter plates both ends, the filter plates include that mainboard, subplate and secondary frame, the subplate are set to the master
The inner space of the front side of plate, the pair frame is filter chamber, and the pair frame is set in the mainboard and opposite can be moved with the mainboard
It is dynamic, so that the filter chamber is become the press filtration space of variable volume；The mainboard and subplate are equipped with material channel, the mainboard and secondary frame
Between be equipped with elastic element and position limiting structure；
Several sequentially connected filter plates are subjected to compression closing first, and pressurize maintenance is carried out by the hydraulic cylinder, by institute
It states product pump to input material in filter chamber by the material channel, fills up press filtration space, and utilize the power of the product pump
Effect carries out first time squeezing, then after continuing stress to press filtration board group, and the pressure of the hydraulic cylinder increases, variable volume it is described
Filter chamber and squeezes the elastic element by the compression of the mainboard, subplate and secondary frame, to carry out secondary pressure to the filter plates
It squeezes, after squeezing, the filter plates reset, and the moving range of the secondary frame is limited by the position limiting structure；
The twice pressing process is segmentation dentation formula press dewatering process, and driving hydraulic cylinder action makes the pressure value in each segmentation
It gradually increases, when squeeze pressure value reaches the first pressure value of setting, squeeze pressure value is reduced to by driving hydraulic cylinder action
The second pressure value of setting, into next segmentation；Each first pressure value in the expressing process being respectively segmented is from front to back
Increase paragraph by paragraph, and the pressure increment being respectively segmented is identical, the entire pressure change difference during the twice pressing is 110-
250kg；The single pressing process is：Under the power effect of the product pump, the material in the press filtration space is carried out
Squeezing, the pressure of the hydraulic cylinder are upgraded to 100-120kg.
2. a kind of dentation formula pressurize filter-pressing method according to claim 1, it is characterised in that：The pre-compaction process includes such as
Lower step：
(1) start hydraulic device, filter press plate is compressed and closed by push plate；
(2) hydraulic cylinder pressurize, pressure 13-15kg, push plate maintenance.
3. a kind of dentation formula pressurize filter-pressing method according to claim 1, it is characterised in that：In fill process, if object
The power effect of material pump is insufficient to allow the pressure of the hydraulic cylinder to be upgraded to 100-120kg, then continues to feed again, makes to reach described
Until the pressure of hydraulic cylinder.
4. a kind of dentation formula pressurize filter-pressing method according to claim 1, it is characterised in that：After twice pressing process, also
Including blow cores step, the moistening material remained in the press filtration space is blown off.
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| CN201610048529.XA CN105561645B (en) | 2016-01-25 | 2016-01-25 | A kind of dentation formula pressurize filter-pressing method |
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| CN106587563A (en) * | 2016-12-14 | 2017-04-26 | 安徽省通源环保科技有限公司 | High-dryness squeezing method for sludge |
| CN107998707B (en) * | 2017-06-03 | 2023-08-15 | 浙江晟昌源环境科技有限公司 | Electromagnetic force filter pressing dewatering device for sewage and sludge |
| CN107596745A (en) * | 2017-10-30 | 2018-01-19 | 佛山市金凯地环保工程有限公司 | Air blowing type filter pressing plate with line type filtering structure |
| CN113877258B (en) * | 2021-12-07 | 2022-08-16 | 山东菲特环保设备有限公司 | High-pressure filter press based on oil cylinder displacement control |
| WO2023134174A1 (en) * | 2022-01-17 | 2023-07-20 | 安永环保科技(江苏)有限公司 | Material heat-free drying system, filter press control method and filter press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750028A1 (en) * | 1977-11-09 | 1979-05-10 | Rolf Flach | METHOD FOR EXPRESSION OF CLAIMS AND DEVICE FOR CARRYING OUT THE METHOD |
| CN1261184C (en) * | 2001-03-30 | 2006-06-28 | 特姆金埃科系统株式会社 | Filter press type dewatering system, dewatering method, dewater, check valve, and opening/closing valve |
| CN202700167U (en) * | 2012-06-28 | 2013-01-30 | 张藜藜 | Plunger pre-compacted pressing and filtering unit and press machine |
| CN102836581B (en) * | 2012-08-14 | 2015-03-25 | 佛山市金凯地过滤设备有限公司 | Pressure filter and pressing filtering method thereof |
| CN204428915U (en) * | 2015-01-30 | 2015-07-01 | 河南百汇环境工程有限公司 | A kind of filter-plate structure of variable displacement type filter press |
| CN104888502A (en) * | 2015-05-15 | 2015-09-09 | 安徽省通源环境节能有限公司 | Segmental sludge high dryness pressing method |
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Effective date of registration: 20181116 Address after: 362200 No. 4 Kaiyuan Road, Jingbian Village, Cizao Town, Jinjiang City, Quanzhou City, Fujian Province Patentee after: Quanzhou Chuanglu Machinery Industry and Trade Co.,Ltd. Address before: 528000 Workshop of Zinanaobian Industrial Zone, Nanzhuang Town, Chancheng District, Foshan City, Guangdong Province Patentee before: FOSHAN JINKAIDI FILTRATION EQUIPMENT Co.,Ltd. |
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Address after: No. 20 Jinhe Avenue, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province Patentee after: Fujian Chuangli Machinery Co.,Ltd. Country or region after: China Address before: No. 4 Kaiyuan Road, Jingbian Village, Cizao Town, Jinjiang City, Quanzhou City, Fujian Province Patentee before: Quanzhou Chuanglu Machinery Industry and Trade Co.,Ltd. Country or region before: China |