CN105864128B - A kind of filter press self-balancing pressure device - Google Patents
A kind of filter press self-balancing pressure device Download PDFInfo
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- CN105864128B CN105864128B CN201610358685.6A CN201610358685A CN105864128B CN 105864128 B CN105864128 B CN 105864128B CN 201610358685 A CN201610358685 A CN 201610358685A CN 105864128 B CN105864128 B CN 105864128B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000010985 leather Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 abstract description 70
- 239000010802 sludge Substances 0.000 abstract description 4
- 239000010727 cylinder oil Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000012065 filter cake Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0064—Counterbalancing means for movable press elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/165—Control arrangements for fluid-driven presses for pneumatically-hydraulically driven presses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to a kind of filter press self-balancing pressure device that Treatment of Sludge industrial equipment manufactures field, the thrust plate set including order, filter plate and pressure strip, pressure strip connects master cylinder, feed pump and water inlet pipe connect filter plate respectively, also set up material oil conversion leather bag, water oil conversion leather bag, oil gas cylinder is combined and voltage stabilizing gas tank, the top of oil gas cylinder combination is small oil tank, bottom is large tank, small oil tank is connected with the piston rod of large tank, large tank or so respectively arranges a pre- air cylinder, the piston rod of large tank and two pre- air cylinders, connected by a cross bar, small oil tank, four cylinder bodies of large tank and two pre- air cylinders, connected by square shape framework, also set up proximity switch；Large tank binder oil conversion leather bag and water oil conversion leather bag, small oil tank connection master cylinder, voltage stabilizing gas tank connect two pre- air cylinders；The present invention realizes material pressure or the dynamic equilibrium between hydraulic pressure and master cylinder oil pressure, filter plate is damaged from excessive pressure, simple in construction, easy to maintenance.
Description
Technical field
The present invention relates to papermaking, brewage, Treatment of Sludge industrial equipment manufacture field, specifically refer to a kind of plate and frame press filtration
A kind of filter press self-balancing pressure device that machine, chamber-type press filter, diaphragm filter press are used.
Background technology
Traditional papermaking, brewage, the relevant industries such as Treatment of Sludge, aqueous higher material is carried out to the side of separation of solid and liquid
Method, mainly will be solid from liquid with filter plants such as centrifugal dehydrator, belt filter press, plate and frame filter press, vacuum press filters
Body is filtered out, so as to reach the purpose of separation of solid and liquid.
Existing filter press is mainly automatic pulling plate filter press, after the completion of each press filtration, using electric tool that quantity is many
Many bulky filter plates are moved, and are allowed filter cake to drop, are then again closed up filter plate.
Existing diaphragm filter press makes barrier film heave compressing filter cake, Jin Ershi by inputting the current and air-flow of certain pressure
It is existing
The further dehydration of filter cake, and filter press mechanical strength and sealing are limited to, traditional diaphragm filter press can only
Reach 2MPa
Operating pressure, pressure is big again, is easy for the problem of pull bar deformation or framed deformation leakage occur, and such
Under pressure value, moisture content is still very high in the filter cake after dehydration, and the filter plate after dehydration also needs to add by other processes such as drying
It could be used after work directly as other raw materials, this is all extremely inconvenient for follow-up transport and processing, cost height enterprise.
People improve filter plate area to improve press filtration ability, but filter plate area is bigger, before charging, what frame was subject to
Pressure can be bigger, and this is easily caused, and filter plate is damaged, and to solve this problem, traditional filter press can increase many in the middle of filter plate
Individual supporting table, such as Fig. 2,3, these supporting tables can reduce frame stress, but it can bring series of problems：1st, filtering surface is reduced
Product, have impact on production capacity.2nd, maximum the problem of, is, if these supporting tables have a filter cake stick on top, during next matched moulds, Jiu Huizao
Damaged into filter cloth.In process of production, these supporting tables are all the positions of filter cloth cracky.
A kind of high pressure filter-pressing device（CN 104225985 B）Patent, by setting connection operating pressure to can reach 20MPa
High-pressure water pipe and master cylinder pressure conversion cylinder, make master cylinder pressure with the variation in water pressure of squeezing dynamic change, its produce
Thrust balances each other with the squeeze force that is produced in water mould all the time, and operating pressure is not high and cause when overcoming existing filter-press dehydration operation
The high defect of moisture content, is greatly reduced the moisture content of filter cake, prevented because high pressure occur it is framed damage by pressure or material leakage phenomenon, this is special
The diaphragm filter press operating pressure of profit brings up to 20MPa by past 2MPa, without damaging filter press.
The pressure conversion cylinder that above-mentioned patent is used, is pressurized or is depressurized using the area ratio of rodless cavity and rod chamber, reason
By upper feasible, practice is unworkable, and reason is, directly by the rodless cavity of water cut-in pressure conversion cylinder, to be easily caused during work few
Water or material are measured, rod chamber is entered by piston periphery interval, the hydraulic oil of master cylinder, such consequence, the lighter, it is impossible to realize is polluted
It is pressurized or depressurizes in proportion, severe one, whole master cylinder even filter press is scrapped.Above-mentioned patent can not provide fixed pressure-pad-force,
To increase pressure cylinder in addition, hydraulic system is become complicated, increase cost, add system failure rate.
The content of the invention
In order to solve the problem of above-mentioned prior art is present, the present invention provides a kind of simple efficient filter press autobalance
Pressure apparatus.
The technical scheme that the present invention is used is as follows：
A kind of filter press self-balancing pressure device, including order set thrust plate, quantity be 10 to 120 filter plates and
Pressure strip, pressure strip connection master cylinder, is additionally provided with feed pump and squeezing water pump, and feed pump connects odd or even number by feed pipe
Filter plate, squeezing water pump connects even numbers or odd number filter plate by water inlet pipe, and the number numbering of filter plate is opened from No. 1 of close pressure strip
Begin to carry out to thrust plate direction order, also set up material oil conversion leather bag, water oil conversion leather bag, oil gas cylinder combination and voltage stabilizing air storage
Tank；
The material oil conversion leather bag, water oil conversion leather bag connect feed pipe and water inlet pipe respectively；
The top of the oil gas cylinder combination is small oil tank, and bottom is large tank, and small oil tank is connected with the piston rod of large tank
Connect, in large tank the right and left one pre- air cylinder of each arrangement, the piston rod of large tank and two pre- air cylinders passes through a cross bar
Connection, the small oil tank, large tank and two pre- air cylinders totally four cylinder bodies, is connected by square shape framework, in square shape
Frame right, is positioned proximate to switch, and the small oil tank connects master cylinder, and large tank is by expecting road valve and water route valve, difference binder
Oil conversion leather bag and water oil conversion leather bag；
The voltage stabilizing gas tank is respectively communicated with two pre- air cylinders.
The Research idea of the present invention and calculating checking：
The course of work：Promote pressure strip to be moved to thrust plate direction from master cylinder first, compressed polylith filter plate, then
Mud is pumped into by feed pump, reached after the regular hour, charging stops, starting squeezing water pump, squeezes into squeezing water under high pressure, water under high pressure
Promote the barrier film built in filter plate to be squeezed, make cake dewatering.
In this course of work, the thrust that hydraulic cylinder is provided to pressure strip is equal to the liquid of piston area × master cylinder of master cylinder
Pressure is pressed, i.e.,：
F cylinders=S cylinders × P liquid
And filter press is in the course of the work, by the material pressure of filter chamber（Or squeezing hydraulic pressure）Effect, it is necessary to pressure strip provide
Enough thrust, otherwise filter plate can be leaked by distending.
And the thrust that filter press filter board is provided to pressure strip is equal to the flanging for pressure+filter plate that filter chamber area × filter chamber is subject to
Power, i.e.,
F plates=（S rooms × P rooms）+（S is in × P）
When reaching compression poised state, F cylinders=F plates, and before charging, material pressure is 0, thus the pressure of oil cylinder completely by
The pressure-pad-force of filter plate is born, and this power is very big.Below with 1 meter × 1 meter conventional of filter plate, 0.94 meter × 0.94 meter of filter chamber enters
Material pressure is 0.6MPa, and squeezing pressure is 1.2MPa；0.3 meter of master cylinder cylinder diameter, the hydraulic press that master cylinder operating pressure is 20MPa is
Example, illustrates in the press filtration course of work, the situation of change of filter plate stress and the defect that it is present.
Filter plate area structure schematic diagram
Before charging, master cylinder thrust is：
F cylinders=S cylinders × P liquid=0.3 × 4 × 3.14 × 20 × 106=1413716.69 Ns of 0.3 ÷
Now feed pressure is 0, and the thrust of oil cylinder institute output is all born by frame, therefore the pressure suffered by frame is：
1413716.69 ox ÷（1×1-0.94×0.94）=12.14MPa
When reaching maximum feed pressure, thrust=0.94 × 0.94 × 0.6 × 106=530160 N that filter chamber is produced, therefore
Pressure suffered by frame is 1413716.69-530160=883556.694 N, and the pressure that filter plate frame is born is 883556.694
Ox ÷（1×1-0.94×0.94）=7.59MPa.
When charging stops, starting squeezing, when reaching maximum squeeze pressure, thrust=0.94 × 0.94 × 1.2 that filter chamber is produced
× 106=1060320 Ns, therefore pressure suffered by frame is 1413716.69-1060320=353396.694 N, filter plate frame
The pressure born is 353396.694 Ns of ÷（1×1-0.94×0.94）=3.04MPa.
Filter plate is can be seen that before charging from above-mentioned calculating process, and frame is by up to 12MPa pressure, filter plate face
Product is bigger, before charging, and the pressure that frame is subject to can be bigger, and this easily causes filter plate breakage, to solve this problem, tradition
Filter press can increase several supporting tables, as shown in Figure 3.Increase supporting table, side effect is very big.
To solve this problem, the present invention provides a kind of filter press work material pressure（Or squeeze pressure）With cylinder pressure certainly
Dynamically balanced device, it ensures that filter plate frame is not damaged by excessive pressure, and without supporting table.
The beneficial effects of the invention are as follows：
1）Using material oil conversion leather bag, water oil conversion leather bag, the pollution of material, water to hydraulic oil is isolated, system operation is steady
It is fixed reliable；
2）The small oil tank and large tank of arranged in series above and below setting, make the hydraulic oil in master cylinder sense in time feed pipe and
Intake the height change of pipe pressure, the pressure of follow-up adjustment in time is raised and lowered, and system operation linkage sensitivity is improved；
3）A pre- air cylinder is respectively arranged in large tank the right and left, pre- air cylinder connects voltage stabilizing gas tank, works as feed pipe
When pressure with water inlet pipe is zero, when making master cylinder to the thrust plate of filter press, filter plate and pressure strip matched moulds, possesses certain pressure
, when preventing feed tube, there is possible material leakage in power；
4）Switch is positioned proximate to, it is horizontal when the operating pressure of feed pipe, water inlet pipe or master cylinder exceedes the maximum pressure of setting
Bar contacts proximity switch, and control system forced stoppage protects the safe operation of filter press；
5）The present invention realizes material pressure（Or hydraulic pressure）A kind of dynamic equilibrium between master cylinder oil pressure, makes filter plate frame from excessive
Pressure and damage；
6）Master cylinder of the present invention has the function of flanging cylinder concurrently, and dual-use material is simple in construction, easy to maintenance, easily uses.
Brief description of the drawings
Fig. 1 is traditional filter press operation principle schematic diagram.
Fig. 2 is filter plate enlarged diagram.
Fig. 3 is the filter plate enlarged diagram for having added four supporting tables.
Fig. 4 is a kind of filter press self-balancing pressure schematic device.
Fig. 5 is one of oil gas cylinder work in combination enlarged diagram in Fig. 4.
Fig. 6 is two of oil gas cylinder work in combination enlarged diagram in Fig. 4.
Fig. 7 is three of oil gas cylinder work in combination enlarged diagram in Fig. 4.
In figure, 1-feed pump, 2-thrust plate, 3-filter plate, 4-pressure strip, 5-master cylinder, 6-small oil tank, 7-precompressed
Cylinder, 8-voltage stabilizing gas tank, 9-large tank, 10-material oil conversion leather bag, 11-material road valve, 12-water route valve, 13-water oil
Change leather bag, 14-squeezing water pump, 15-proximity switch, 17- supporting tables, 21-feed pipe, 24-water inlet pipe, 25-mouth word
Shape framework, 26-cross bar, S1- frame areas, S2- filter chamber areas, filter plate area S=S1+ S2.
In Fig. 1 and Fig. 3, the arrangement number of each filter plate from right to left be No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8,9
Number, No. 10, No. 11, No. 12.
Embodiment
Fig. 4 is a kind of filter press self-balancing pressure device, including sequentially the thrust plate of setting, optimal number are 80-90
Individual filter plate（Fig. 4 is only 7 filter plates of schematic diagram）And pressure strip, pressure strip connection master cylinder, feed pump and squeezing water pump are additionally provided with, is entered
Expect that pump connects odd number filter plate by feed pipe, squeezing water pump connects even numbers filter plate, the number numbering of filter plate by water inlet pipe
Carried out since close to No. 1 of pressure strip to thrust plate direction order, also set up material oil conversion leather bag, water oil conversion leather bag, oil
Cylinder is combined and voltage stabilizing gas tank.
Material oil conversion leather bag, water oil conversion leather bag connect feed pipe and water inlet pipe respectively.
The top of oil gas cylinder combination is small oil tank, and bottom is large tank, and small oil tank is connected with the piston rod of large tank,
The piston rod of large tank the right and left one pre- air cylinder of each arrangement, large tank and two pre- air cylinders is connected by a cross bar,
The small oil tank, large tank and two pre- air cylinders totally four cylinder bodies, are connected by square shape framework, right in square shape framework
Side, is positioned proximate to switch, and the small oil tank connects master cylinder, and large tank is by expecting road valve and water route valve, binder oil conversion respectively
Leather bag and water oil conversion leather bag.
Voltage stabilizing gas tank is respectively communicated with two pre- air cylinders, sees accompanying drawing 5,6,7.
Operation principle of the present invention and procedure decomposition：
When work starts, master cylinder oil-feed 5 promotes pressure strip 4 and filter plate 3 to be moved to the direction of thrust plate 2, now, material road and
The pressure in water route is zero, and has default air pressure in gas tank, therefore two pre- air cylinders 7 can be upward together with large tank
Top is moved to, small oil tank is then pushed back, as shown in fig. 7, starting figure for matched moulds.
After all filter plates are all pressed, master cylinder pressure rises, when rising to certain oil pressure, and the thrust that small cylinder is produced can be big
In the thrust of two cylinders, large tank and two cylinders are moved down, and when being moved close to 15 position of switch, master cylinder inlet valve is closed,
Master cylinder stops oil-feed, and now the oil pressure of master cylinder will not be too high, and the pressure that the frame of filter plate is subject to is also little, but has reached matched moulds
Require that.As shown in fig. 6, terminating figure for matched moulds.
After matched moulds terminates, start charging, valve 11 is opened, valve 12 is still in closed mode, and feed pressure is through material oil conversion skin
Capsule changes into pressure in oil pressure, large tank and risen, but because master cylinder valve is turned off, all filter plates have been compressed, therefore master cylinder and small oil
Oil volume in cylinder does not change, but pressure ratio can increase with the increase of large tank, and increase coefficient is big small oil tank face
The ratio between product, the main thrust produced by filter plate filter chamber of thrust produced by master cylinder rises due to oil pressure is offset, and to frame stress
Influence is little.After charging terminates, when being squeezed, shutoff valve 11 is only needed, valve 12 is opened, system realizes same balance pressure work(
Energy.
With above-mentioned 1 meter × 1 meter of filter plate, 0.94 meter × 0.94 meter of filter chamber, charging pressure is 0.6MPa, and squeezing pressure is
1.2MPa；0.3 meter of master cylinder cylinder diameter, exemplified by master cylinder operating pressure is 20MPa hydraulic press, illustrates in the press filtration course of work, filter plate
The situation of change of stress.The precompressed air pressure that this example is set is 0.245MPa, and precompressed cylinder bore is 0.08 meter 2, large tank cylinder
Footpath is 0.095 meter, and small oil tank cylinder diameter is 0.025 meter.
At the end of matched moulds, charging and squeeze water are not opened also, and large tank pressure is 0, and the upward thrust of two cylinders is
F=0.08 × 4 × 3.14 × 0.245 × 106 × 2=2463 Ns of 0.08 ÷
Therefore the ÷ of pressure in small oil tank=2463（0.025×0.025÷4×3.14）=5.02MPa
Because small oil tank is connected with master cylinder, oil pressure is also 5.02MPa by force in master cylinder, therefore the thrust that master cylinder is produced should
This is
F=0.3 × 4 × 3.14 × 5.02 × 106=354673.2 Ns of 0.3 ÷
Now the power of master cylinder is born by filter plate frame entirely, therefore the pressure that frame is born is：
The ÷ of P sides=354673.2（1×1-0.94×0.94）=3.05MPa
When charging pressure reaches 0.6MPa, large tank pressure is 0.6MPa, and the upward thrust of two cylinders is
F1=0.08 × 4 × 3.14 × 0.245 × 106 × 2=2463 Ns of 0.08 ÷
The upward thrust of large tank is
F2=0.095 × 4 × 3.14 × 0.6 × 106=4252.9 Ns of 0.095 ÷
Due to being now in poised state, therefore thrust=F1+F2=6715.9 of the generation of small oil tank
Therefore the ÷ of pressure in small oil tank=6715.9（0.025×0.025÷4×3.14）=13.68MPa
Because small oil tank is connected with master cylinder, oil pressure is also 13.68MPa by force in master cylinder, therefore the thrust that master cylinder is produced
For
F=0.3 × 4 × 3.14 × 13.68 × 106=967095.32 Ns of 0.3 ÷
Now the power some of master cylinder is born by filter chamber, and some is born by filter plate frame,
Thrust=0.94 × 0.94 × 0.6 × 106=530160 N that filter chamber is produced
Therefore filter plate frame stress is：967095.32-530160 Ns of ox=436935.32 N
Therefore the pressure that frame is born is：
The ÷ of P sides=436935.32（1×1-0.94×0.94）=3.75MPa
When squeeze water pressure reaches 1.2MPa, large tank pressure is 1.2MPa, and the upward thrust of two cylinders is
F1=0.08 × 4 × 3.14 × 0.245 × 106 × 2=2463 Ns of 0.08 ÷
The upward thrust of large tank is
F2=0.095 × 4 × 3.14 × 1.2 × 106=8505.86 Ns of 0.095 ÷
Due to being now in poised state, therefore thrust=F1+F2=10968.87 N of the generation of small oil tank
Therefore the ÷ of pressure in small oil tank=10968.87（0.025×0.025÷4×3.14）=22.35MPa
Because small oil tank is connected with master cylinder, oil pressure is also 22.35MPa by force in master cylinder, therefore the thrust that master cylinder is produced
For
F=0.3 × 4 × 3.14 × 22.35 × 106=1579517.39 Ns of 0.3 ÷
Now the power some of master cylinder is born by filter chamber, and some is born by filter plate frame,
Thrust=0.94 × 0.94 × 1.2 × 106=1060320 N that filter chamber is produced
Therefore filter plate frame stress is：1579517.39-1060320 Ns of ox=519197.39 N
Therefore the pressure that frame is born is：
The ÷ of P sides=519197.39（1×1-0.94×0.94）=4.46MPa
For having analyzed,
Under the downward thrust F of small cylinder=P master × S is small
On vat and the upward thrust F of two cylinders=（P expects（Water）× S is big）+（P gas × S gas）
In balance, down thrust is balance with upwards thrust, and related data is substituted into and obtained：
P master × S is small=（P expects（Water）× S is big）+（P gas × S gas）
I.e.：P master=（P expects（Water）Big+P gas × S gas × 2 of × S）÷ S are small
=14.44P expects（Water）+5.01
From above-mentioned calculating process it is recognised that the present apparatus can provide material pressure（Or squeezing hydraulic pressure）One between master cylinder oil pressure
Dynamic equilibrium is planted, filter plate frame is damaged from excessive pressure.
Different filter plates and different press filtration squeezing job requirements, can be by setting different filter plates, filter chamber, master cylinder cylinder
Footpath, size oil cylinder cylinder diameter and flanging cylinder bore and pretension air pressure realize that filter plate size is up to 3 meters × 6 meters, and filter chamber is reachable
2.94 × 5.94 meters, squeezing operating pressure can arbitrarily be realized up to more than 15MPa, i.e. operating pressure between 1-30MPa, full
The press filtration requirement of sufficient different type sludge.
The present invention can also have a variety of changes, and such as oil gas cylinder combination can be installed with turned upside down, water oil conversion leather bag, material oil
Change leather bag reverse mounted, do not influence using effect, belong to one of application mode of this patent.
Another change of the present invention is, without cylinder, and to use a kind of constant force instead and realize pressure instead of pretension cylinder, such as extension
One weight, or belong to methods such as constant electromagnet pulls the extension of this technology.
Claims (1)
1. a kind of filter press self-balancing pressure device, including sequentially the thrust plate of setting, quantity are 10 to 120 filter plates and pressure
Tight plate, pressure strip connection master cylinder is additionally provided with feed pump and squeezing water pump, and feed pump connects odd or even number by feed pipe and filtered
Plate, squeezing water pump connects even numbers or odd number filter plate by water inlet pipe, and the number numbering of filter plate is since close to No. 1 of pressure strip
Carried out to thrust plate direction order, it is characterised in that：Also set up material oil conversion leather bag, water oil conversion leather bag, oil gas cylinder combination and
Voltage stabilizing gas tank；
The material oil conversion leather bag, water oil conversion leather bag connect feed pipe and water inlet pipe respectively；
The top of the oil gas cylinder combination is small oil tank, and bottom is large tank, and small oil tank is connected with the piston rod of large tank,
The piston rod of large tank the right and left one pre- air cylinder of each arrangement, large tank and two pre- air cylinders is connected by a cross bar,
The small oil tank, large tank and two pre- air cylinders totally four cylinder bodies, are connected by square shape framework, right in square shape framework
Side, is positioned proximate to switch, and the small oil tank connects master cylinder, and large tank is by expecting road valve and water route valve, binder oil conversion respectively
Leather bag and water oil conversion leather bag；
The voltage stabilizing gas tank is respectively communicated with two pre- air cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358685.6A CN105864128B (en) | 2016-05-27 | 2016-05-27 | A kind of filter press self-balancing pressure device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358685.6A CN105864128B (en) | 2016-05-27 | 2016-05-27 | A kind of filter press self-balancing pressure device |
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| Publication Number | Publication Date |
|---|---|
| CN105864128A CN105864128A (en) | 2016-08-17 |
| CN105864128B true CN105864128B (en) | 2017-10-13 |
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