CN105864128A - Automatic pressure balancing device for pressure filter - Google Patents
Automatic pressure balancing device for pressure filter Download PDFInfo
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- CN105864128A CN105864128A CN201610358685.6A CN201610358685A CN105864128A CN 105864128 A CN105864128 A CN 105864128A CN 201610358685 A CN201610358685 A CN 201610358685A CN 105864128 A CN105864128 A CN 105864128A
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- oil cylinder
- filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 239000010985 leather Substances 0.000 claims abstract description 28
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 235000015250 liver sausages Nutrition 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 60
- 238000010586 diagram Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 8
- 239000012065 filter cake Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 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
- 239000007787 solid Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 2
- 230000006837 decompression 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
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying 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
- 238000003911 water pollution 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 invention relates to the field of equipment manufacturing in the sludge treatment industry and provides an automatic pressure balancing device for a pressure filter. The automatic pressure balancing device comprises a thrust plate, filter plates and a pressing plate, wherein the thrust pate, the filter plates and the pressing plate are arranged in sequence. The pressing plate is connected with a main cylinder. A feeding pump and a water inlet pipe are connected with the filter plates. The automatic pressure balancing device is further provided with a material-oil conversion leather bag, a water-oil conversion leather bag, an oil cylinder and air cylinder assembly and a pressure stabilizing gas storage tank. A small oil cylinder is located on the upper portion of the oil cylinder and gas cylinder assembly, and a large oil cylinder is located on the lower portion of the oil cylinder and gas cylinder assembly. A piston rod of the small oil cylinder is connected with a piston rod of the large oil cylinder. Pre-pressing air cylinders are arranged on the left side and the right side of the large oil cylinder correspondingly. The piston rod of the large oil cylinder is connected with piston rods of the two pre-pressing air cylinders through a cross rod. Four cylinder bodies of the small oil cylinder, the large oil cylinder and the pre-pressing air cylinders are connected through a square frame. The automatic pressure balancing device is further provided with a proximity switch. The large oil cylinder is connected with the material-oil conversion leather bag and the water-oil conversion leather bag. The small oil cylinder is connected with the main cylinder. The pressure stabilizing gas storage tank is connected with the two pre-pressing air cylinders. By the adoption of the automatic pressure balancing device, the dynamic balance between the material pressure or water pressure and the oil pressure of the main cylinder is achieved, the situation that the filter plates are damaged under excessively high pressure is avoided, the structure is simple, and maintenance is convenient.
Description
Technical field
The present invention relates to papermaking, brewage, Treatment of Sludge industrial equipment manufactures field, specifically refers 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 use.
Background technology
Traditional papermaking, brewage, the relevant industries such as Treatment of Sludge, aqueous higher material is carried out 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 filter
Body filters out, thus reaches the purpose of separation of solid and liquid.
Existing filter press is mainly automatic pulling plate filter press, after each press filtration completes, uses electric tool that quantity is many
Many heavy filter plates are moved, and allow filter cake drop, are closed up by filter plate.
Existing diaphragm filter press makes barrier film heave compressing filter cake, Jin Ershi by current and the air-flow of input certain pressure
Existing
The further dehydration of filter cake, and it is limited to filter press mechanical strength and sealing, traditional diaphragm filter press can only achieve
2MPa
Operating pressure, pressure is big again, is easy for the problem that pull bar deformation or framed deformation are revealed occur, and at such pressure
Under value, in the filter cake after dehydration, moisture content is the highest, and the filter plate after dehydration also needs to after drying waits the processing of other operations
Could use directly as other raw material, this is for follow-up transport and processing, the most extremely inconvenience, and cost height is looked forward to.
People, in order to improve press filtration ability, improve filter plate area, but filter plate area are the biggest, and before charging, frame is subject to
Pressure can be bigger, and it is damaged that this easily causes filter plate, and for solving this problem, traditional filter press can increase many in the middle of filter plate
Individual support platform, as Fig. 2,3, these support platforms can reduce frame stress, but it can bring series of problems: 1, decreases filtering surface
Long-pending, have impact on production capacity.2, maximum problem is, if these support platform a filter cake stick on top, during matched moulds next time, and Jiu Huizao
Filter cloth is become to damage.In process of production, these support the position that platform is all filter cloth cracky.
A kind of high pressure filter-pressing device (CN 104225985 B) patent, can reach 20MPa by arranging connection operating pressure
High-pressure water pipe and the pressure conversion cylinder of master cylinder, make master cylinder pressure with squeezing variation in water pressure and dynamically change, its produce
Thrust balances each other with the squeeze force that produces in water mould all the time, and when overcoming existing filter-press dehydration operation, operating pressure is the highest and cause
The defect that moisture content is high, is greatly reduced the moisture content of filter cake, has stopped because framed damaging by pressure or the phenomenon of material leakage occurs in high pressure, and this is special
The diaphragm filter press operating pressure of profit is brought up to 20MPa by the 2MPa in past, and does not damage filter press.
The pressure conversion cylinder that above-mentioned patent uses, uses the area ratio of rodless cavity and rod chamber to come supercharging or decompression, reason
In opinion feasible, practice is unworkable, and reason is directly by the rodless cavity of water cut-in pressure conversion cylinder, easily causes few during work
Amount water or material, enter rod chamber by piston periphery interval, pollute the hydraulic oil of master cylinder, such consequence, the lighter, it is impossible to realize
Supercharging or decompression in proportion, severe one, whole master cylinder even filter press is scrapped.Above-mentioned patent cannot provide fixing pressure-pad-force,
Additionally to increase pressure cylinder, make hydraulic system become complicated, increase cost, add system failure rate.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the present invention provides a kind of simple efficient filter press autobalance
Pressure apparatus.
The technical scheme that the present invention uses is as follows:
A kind of filter press self-balancing pressure device, is 10 to 120 filter plates and compression including thrust plate, the quantity sequentially arranged
Plate, pressure strip connects master cylinder, is additionally provided with feed pump and squeezing water pump, and feed pump connects odd or even number by feed pipe and filters
Plate, squeezing water pump connects even numbers or odd number filter plate by water inlet pipe, and the number numbering of filter plate is from the beginning of near No. 1 of pressure strip
To thrust plate direction, order is carried out, and also sets up material oil conversion leather bag, water oil conversion leather bag, oil gas cylinder combination and voltage stabilizing gas tank；
Described material oil conversion leather bag, water oil conversion leather bag connect feed pipe and water inlet pipe respectively；
The top of described oil gas cylinder combination is small oil tank, and bottom is that the piston rod of large tank, small oil tank and large tank is connected,
Large tank the right and left respectively arranges a pre-air cylinder, and the piston rod of large tank and two pre-air cylinders is connected by a cross bar,
Described small oil tank, large tank and two pre-air cylinder totally four cylinder bodies, be connected by square shape framework, right at square shape framework
Side, is positioned proximate to switch, and described small oil tank connects master cylinder, and large tank is by material road valve and water route valve, and binder oil is changed respectively
Leather bag and water oil conversion leather bag；
Described 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: first promoted pressure strip to move to thrust plate direction by master cylinder, make polylith filter plate be compressed, then by entering
Material pump pumps into mud, and after reaching the regular hour, charging stops, and starts squeezing water pump, squeezes into squeezing water under high pressure, and water under high pressure promotes
The built-in barrier film of filter plate squeezes, and makes cake dewatering.
In this course of work, hydraulic cylinder is equal to the liquid of the piston area × master cylinder of master cylinder to the thrust that pressure strip provides
Pressure pressure, it may be assumed that
F cylinder=S cylinder × P liquid
And filter press is in the course of the work, by the effect of the material pressure (or squeezing hydraulic pressure) of filter chamber, pressure strip is needed to provide enough
Thrust, otherwise filter plate can be leaked by distending.
And filter press filter board is equal to the flanging of filter chamber area × filter chamber pressure experienced+filter plate to the thrust that pressure strip provides
Power, i.e.
F plate=(S room × P room)+(S limit × P limit)
When reaching to compress poised state, F cylinder=F plate, and before charging, material pressure is 0, so the pressure of oil cylinder is completely by filter plate
Pressure-pad-force bear, this power is the biggest.Below with conventional filter plate 1 meter × 1 meter, filter chamber 0.94 meter × 0.94 meter, charging pressure
Strong is 0.6MPa, and squeezing pressure is 1.2MPa；Master cylinder cylinder diameter 0.3 meter, as a example by master cylinder operating pressure is the hydraulic press of 20MPa, says
In the bright press filtration course of work, the situation of change of filter plate stress and the defect of its existence.
Filter plate area structure schematic diagram
Before charging, master cylinder thrust is:
F cylinder=S cylinder × P liquid=0.3 × 0.3 ÷ 4 × 3.14 × 20 × 106=1413716.69 ox
Now feed pressure is 0, and the thrust of oil cylinder institute output is all born by frame, and therefore the pressure suffered by frame is:
1413716.69 Ns of ÷ (1 × 1-0.94 × 0.94)=12.14MPa
When reaching maximum feed pressure, thrust=0.94 × 0.94 × 0.6 × 106=530160 Ns that filter chamber produces, therefore frame
Suffered pressure is 1413716.69-530160=883556.694 ox, and the pressure that filter plate frame bears is 883556.694 Ns of ÷
(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 produces
× 106=1060320 Ns, therefore the pressure suffered by frame is 1413716.69-1060320=353396.694 ox, filter plate frame
The pressure born is 353396.694 Ns of ÷ (1 × 1-0.94 × 0.94)=3.04MPa.
From above-mentioned calculating process it can be seen that filter plate is before charging, frame is by the pressure of up to 12MPa, filter plate face
Long-pending the biggest, before charging, the pressure that frame is subject to can be bigger, and it is damaged that this easily causes filter plate, for solving this problem, and tradition
Filter press can increase several support platform, as shown in Figure 3.Increasing and support platform, side effect is the biggest.
For solving this problem, the present invention provides one 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, again without supporting platform.
The invention has the beneficial effects as follows:
1) making materials oil conversion leather bag, water oil conversion leather bag, isolated material, the water pollution to hydraulic oil, system run all right can
Lean on；
2) small oil tank and the large tank of upper and lower arranged in series are set, make the hydraulic oil in master cylinder sense feed pipe and water inlet in time
The height change of pipe pressure, follow-up in time adjusts being raised and lowered of pressure, and system is run linkage sensitivity and improved；
3) respectively arranging a pre-air cylinder at large tank the right and left, pre-air cylinder connection voltage stabilizing gas tank, when feed pipe with enter
When the pressure of water pipe is zero, when making master cylinder to thrust plate, filter plate and the pressure strip matched moulds of filter press, possess certain pressure, anti-
Only during feed tube, possible material leakage occurs；
4) it is positioned proximate to switch, when the operating pressure of feed pipe, water inlet pipe or master cylinder exceedes the maximum pressure of setting, and cross bar connects
Touch proximity switch, control system forced stoppage, the safe operation of protection filter press；
5) present invention realizes a kind of dynamic equilibrium between material pressure (or hydraulic pressure) and master cylinder oil pressure, makes filter plate frame from excessive pressure
Power and damage；
6) master cylinder of the present invention has the function of flanging cylinder concurrently, dual-use material, and simple in construction is easy to maintenance, easily uses.
Accompanying drawing explanation
Fig. 1 is traditional filter press operation principle schematic diagram.
Fig. 2 is filter plate enlarged diagram.
Fig. 3 is to have added four filter plate enlarged diagrams supporting platform.
Fig. 4 is a kind of filter press self-balancing pressure device schematic diagram.
Fig. 5 is one of oil gas cylinder work in combination enlarged diagram in Fig. 4.
Fig. 6 is in Fig. 4 the two of oil gas cylinder work in combination enlarged diagram.
Fig. 7 is in Fig. 4 the three of oil gas cylinder work in combination enlarged diagram.
In figure, 1 feed pump, 2 thrust plates, 3 filter plates, 4 pressure strips, 5 master cylinders, 6 small oil tanks, 7 precompressed
Cylinder, 8 voltage stabilizing gas tanks, 9 large tanks, 10 material oil conversion leather bags, 11 material road valves, 12 water route valves, 13 water oil
Conversion leather bag, 14 squeezing water pumps, 15 proximity switches, 17-supports platform, 21 feed pipes, 24 water inlet pipes, 25 mouthfuls of words
Shape framework, 26 cross bars, S1-frame area, S2-filter chamber area, filter plate area S=S1+ S2.
In Fig. 1 and Fig. 3, the dextrosinistral arrangement number of each filter plate is No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8,9
Number, No. 10, No. 11, No. 12.
Detailed description of the invention
Fig. 4 is a kind of filter press self-balancing pressure device, is 80-90 including thrust plate, the optimal number sequentially arranged
Individual filter plate (Fig. 4 is only 7 filter plates of schematic diagram) and pressure strip, pressure strip connects master cylinder, is additionally provided with feed pump and squeezing water pump, enters
Material pump connects odd number filter plate by feed pipe, and squeezing water pump connects even numbers filter plate by water inlet pipe, the number numbering of filter plate
Carry out to thrust plate direction order from No. 1 beginning near pressure strip, also set up material oil conversion leather bag, water oil conversion leather bag, oil
Cylinder combination 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 that the piston rod of large tank, small oil tank and large tank is connected,
Large tank the right and left respectively arranges a pre-air cylinder, and the piston rod of large tank and two pre-air cylinders is connected by a cross bar,
Described small oil tank, large tank and two pre-air cylinder totally four cylinder bodies, be connected by square shape framework, right at square shape framework
Side, is positioned proximate to switch, and described small oil tank connects master cylinder, and large tank is by material road valve and water route valve, and binder oil is changed 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, promote pressure strip 4 and filter plate 3 to move to thrust plate 2 direction, now, material road and water route
Pressure be zero, and in gas tank, have default air pressure, therefore two pre-air cylinders 7 can move upwardly together with large tank
To top, small oil tank is then pushed back, as it is shown in fig. 7, start figure for matched moulds.
When, after all pressings of all filter plates, master cylinder pressure rises, when rising to certain oil pressure, the thrust that little cylinder produces can be big
Moving down in the thrust of two cylinders, large tank and two cylinders, when being moved close to switch 15 position, master cylinder inlet valve cuts out,
Master cylinder stops oil-feed, and now the oil pressure of master cylinder will not be the highest, 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 Figure 6, figure is terminated for matched moulds.
After matched moulds terminates, starting charging, valve 11 is opened, and valve 12 is still in closed mode, and feed pressure is through material oil conversion skin
Capsule changes into oil pressure, and in large tank, pressure rises, but owing to master cylinder valve is turned off, all filter plates compress, therefore master cylinder and little oil
Oil volume in cylinder does not changes, but pressure ratio can increase with the increase of large tank, increases oil cylinder face sized by coefficient
Long-pending ratio, the master cylinder thrust counteracting that produced thrust is mainly produced by filter plate filter chamber owing to oil pressure rises, and to frame stress
Impact is little.After charging terminates, when squeezing, only need to close valve closing 11, open valve 12, system realizes same balance pressure merit
Energy.
With above-mentioned filter plate 1 meter × 1 meter, filter chamber 0.94 meter × 0.94 meter, charging pressure is 0.6MPa, and squeezing pressure is
1.2MPa；Master cylinder cylinder diameter 0.3 meter, as a example by master cylinder operating pressure is the hydraulic press of 20MPa, illustrates in the press filtration course of work, filter plate
The situation of change of stress.The precompressed air pressure that this example is arranged 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 also opened, and large tank pressure is 0, and two cylinders thrust upwards is
F=0.08 × 0.08 ÷ 4 × 3.14 × 0.245 × 106 × 2=2463 ox
Therefore pressure=2463 ÷ (0.025 × 0.025 ÷ 4 × 3.14)=5.02MPa in small oil tank
Owing to small oil tank connects with master cylinder, in master cylinder, oil pressure is the most also 5.02MPa, and the thrust that therefore master cylinder produces should be
F=0.3 × 0.3 ÷ 4 × 3.14 × 5.02 × 106=354673.2 Ns
Now the power of master cylinder is born by filter plate frame entirely, therefore the pressure that frame is born is:
P limit=354673.2 ÷ (1 × 1-0.94 × 0.94)=3.05MPa
When feeding pressure and reaching 0.6MPa, large tank pressure is 0.6MPa, and two cylinders thrust upwards is
F1=0.08 × 0.08 ÷ 4 × 3.14 × 0.245 × 106 × 2=2463 ox
Large tank thrust upwards is
F2=0.095 × 0.095 ÷ 4 × 3.14 × 0.6 × 106=4252.9 ox
Owing to being the most in poised state, therefore the thrust=F1+F2=6715.9 of the generation of small oil tank
Therefore pressure=6715.9 ÷ (0.025 × 0.025 ÷ 4 × 3.14)=13.68MPa in small oil tank
Owing to small oil tank connects with master cylinder, in master cylinder, oil pressure is the most also 13.68MPa, and the thrust that therefore master cylinder produces is
F=0.3 × 0.3 ÷ 4 × 3.14 × 13.68 × 106=967095.32 Ns
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 Ns that filter chamber produces
Therefore filter plate frame stress is: 967095.32 Ns-530160 Ns=436935.32 Ns
Therefore the pressure that frame is born is:
P limit=436935.32 ÷ (1 × 1-0.94 × 0.94)=3.75MPa
When squeeze water pressure reaches 1.2MPa, large tank pressure is 1.2MPa, and two cylinders thrust upwards is
F1=0.08 × 0.08 ÷ 4 × 3.14 × 0.245 × 106 × 2=2463 ox
Large tank thrust upwards is
F2=0.095 × 0.095 ÷ 4 × 3.14 × 1.2 × 106=8505.86 ox
Owing to being the most in poised state, therefore the thrust of the generation of small oil tank=F1+F2=10968.87 ox
Therefore pressure=10968.87 ÷ (0.025 × 0.025 ÷ 4 × 3.14)=22.35MPa in small oil tank
Owing to small oil tank connects with master cylinder, in master cylinder, oil pressure is the most also 22.35MPa, and the thrust that therefore master cylinder produces is
F=0.3 × 0.3 ÷ 4 × 3.14 × 22.35 × 106=1579517.39 ox
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 ox that filter chamber produces
Therefore filter plate frame stress is: 1579517.39 Ns-1060320 Ns=519197.39 Ns
Therefore the pressure that frame is born is:
P limit=519197.39 ÷ (1 × 1-0.94 × 0.94)=4.46MPa
Analyze to get up to say,
Under thrust F that little cylinder is downward=P master × S is little
On vat and two cylinders thrust F upwards=(P material (water) × S is big)+(P gas × S gas)
When balance, down thrust and upwards thrust are balances, related data is substituted into and obtains:
P master × S is little=(P material (water) × S is big)+(P gas × S gas)
That is: ÷ S is little for P master=(P expects big+P gas × S gas × 2 of (water) × S)
=14.44 P expect (water)+5.01
From above-mentioned calculating process it is recognised that this device can provide a kind of dynamic between material pressure (or squeezing hydraulic pressure) and master cylinder oil pressure
State balances, and makes filter plate frame damage from excessive pressure.
Different filter plates and different press filtrations squeezing job requirement, can be by arranging different filter plate, filter chamber, master cylinder cylinder
Footpath, size oil cylinder cylinder diameter and flanging cylinder bore and pretension air pressure realize, filter plate size up to 3 meters × 6 meters, filter chamber up to
2.94 × 5.94 meters, squeezing operating pressure is up to more than 15MPa, i.e. operating pressure arbitrarily can realize between 1-30MPa, full
The press filtration requirement of the dissimilar mud of foot.
The present invention can also have multiple change, as oil gas cylinder combination can be installed with turned upside down, and water oil conversion leather bag, material oil
Conversion leather bag is reverse mounted, does not affect one of using effect, all application mode belonging to this patent.
The another kind of change of the present invention is without cylinder, and uses a kind of constant force instead and replace pretension cylinder to realize pressure, as hung
One weight, or the extension of this technology is all belonged to by methods such as constant electromagnet pulls.
Claims (1)
1. a filter press self-balancing pressure device, is 10 to 120 filter plates and pressure including thrust plate, the quantity sequentially arranged
Tight plate, pressure strip connects master cylinder, is additionally provided with feed pump and squeezing water pump, and feed pump connects odd or even number by feed pipe and filters
Plate, squeezing water pump connects even numbers or odd number filter plate by water inlet pipe, and the number numbering of filter plate is from the beginning of near No. 1 of pressure strip
To thrust plate direction order carry out, 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；
Described material oil conversion leather bag, water oil conversion leather bag connect feed pipe and water inlet pipe respectively；
The top of described oil gas cylinder combination is small oil tank, and bottom is that the piston rod of large tank, small oil tank and large tank is connected,
Large tank the right and left respectively arranges a pre-air cylinder, and the piston rod of large tank and two pre-air cylinders is connected by a cross bar,
Described small oil tank, large tank and two pre-air cylinder totally four cylinder bodies, be connected by square shape framework, right at square shape framework
Side, is positioned proximate to switch, and described small oil tank connects master cylinder, and large tank is by material road valve and water route valve, and binder oil is changed respectively
Leather bag and water oil conversion leather bag；
Described 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864128A true CN105864128A (en) | 2016-08-17 |
| CN105864128B CN105864128B (en) | 2017-10-13 |
Family
ID=56642449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610358685.6A Active CN105864128B (en) | 2016-05-27 | 2016-05-27 | A kind of filter press self-balancing pressure device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422454A (en) * | 2016-09-22 | 2017-02-22 | 云南冶金新立钛业有限公司 | Filter press squeezing system for chlorination-process titanium dioxide production |
| CN108525359A (en) * | 2018-05-16 | 2018-09-14 | 杭州安永环保科技有限公司 | A kind of filter press weighing apparatus pressure system and the pressure method that weighs |
| CN113877258A (en) * | 2021-12-07 | 2022-01-04 | 杭州互歌科技发展有限公司 | High-pressure filter press based on oil cylinder displacement control |
| CN115504604A (en) * | 2022-10-17 | 2022-12-23 | 江西心连心化学工业有限公司 | High-efficiency energy-saving and environment-friendly high-pressure roller filter pressing system |
| 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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| JPS6133204A (en) * | 1984-07-24 | 1986-02-17 | Ishigaki Kiko Kk | Method and device for preventing deformation of filter plate in filter press |
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| CN106422454A (en) * | 2016-09-22 | 2017-02-22 | 云南冶金新立钛业有限公司 | Filter press squeezing system for chlorination-process titanium dioxide production |
| CN108525359A (en) * | 2018-05-16 | 2018-09-14 | 杭州安永环保科技有限公司 | A kind of filter press weighing apparatus pressure system and the pressure method that weighs |
| CN108525359B (en) * | 2018-05-16 | 2020-11-06 | 杭州安永环保科技有限公司 | Pressure balancing system and pressure balancing method of pressure filter |
| CN113877258A (en) * | 2021-12-07 | 2022-01-04 | 杭州互歌科技发展有限公司 | 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 |
| CN115504604A (en) * | 2022-10-17 | 2022-12-23 | 江西心连心化学工业有限公司 | High-efficiency energy-saving and environment-friendly high-pressure roller filter pressing system |
| CN115504604B (en) * | 2022-10-17 | 2023-08-15 | 江西心连心化学工业有限公司 | High-pressure roller filter pressing system with high efficiency, energy conservation and environmental protection |
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