CN101091846A - Vertical type full automatic plate-and-frame filter press, and filter technique - Google Patents
Vertical type full automatic plate-and-frame filter press, and filter technique Download PDFInfo
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- CN101091846A CN101091846A CN 200710017904 CN200710017904A CN101091846A CN 101091846 A CN101091846 A CN 101091846A CN 200710017904 CN200710017904 CN 200710017904 CN 200710017904 A CN200710017904 A CN 200710017904A CN 101091846 A CN101091846 A CN 101091846A
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Abstract
The invention relates to a vertical full automation filter press. The existing filtration filter pressing installment as a result of the structure technology, ,the horizontal hand movement filtration frame which uses the plastic has low production efficiency and big environmental pollution; because the semiautomatic pressure filtration installment also uses the electrical controlled method, but the automated coordination performance of other organization is bad, its stability and the production efficiency are low, specially when the seal cavity bearing, the equipment presents vibration and spray phenomenon. The filter press includes the leveling board frame group, the main body support structure, the board frame group opening and holding apparatus, the filtering cloth automatic cycle running gear, the filtering cloth washing device, automatic control system, hydraulic system, craft circuitry and so on. It uses the vertical structure to realize the full automatic operation, thus has high filter efficiency, low energy consumption, high automaticity, high product quality, easy operation, the simple maintenance, and no pollution.
Description
Technical field
The present invention relates to a kind of filter press and filtering technique thereof, particularly relate to the vertical full-automatic plate and frame filter press and the filtering technique thereof of PLC (or the DCS computer) control of a kind of vertical structure, the automatic shuttling movement of filter cloth.
Background technology
Filter press is mainly used in the sewage disposal in mine, metallurgy, chemical industry, electron trade and the environment-friendly engineering, is a kind of application solid-liquid separating equipment very widely.Existing filtration pressure filter device is because structure technology adopts horizontal manual or semi-automatic pressure filtration more, and horizontal manual filtration sheet frame adopts plastic products, and production efficiency is low, environmental pollution is bigger; Semi-automatic vertical pressure filter is because equipment also adopts electric-control method, but because the automation matching property of other mechanism is relatively poor, its stability and production efficiency are lower, particularly when the seal chamber pressure-bearing, vibrations and hydrojet phenomenon appear in equipment, and in the cleaning of filter cloth, can not realize automation substantially, can't realize full-automatic press filtration processing truly.
Also have some filtering techniques based on vertical automatic pressure filter, but because the limitation of technology, equipment adopts automatically controlled method mostly, but the stability and the production efficiency of equipment are lower, particularly during the seal chamber pressure-bearing, vibrations and hydrojet phenomenon appear in equipment, and environmental pollution is comparatively serious, can't realize full-automatic press filtration processing truly.Whole technology also can't reach the filter effect of expection.
Summary of the invention
The purpose of this invention is to provide a kind of vertical structure, filter efficiency height, energy consumption is low, automaticity is high, product quality is high, easy to operate, safeguard simple, low, the free of contamination vertical full-automatic plate and frame filter press of operating cost.
Another object of the present invention is to provide a kind of reasonable in design, the filtering technique of a kind of full-automatic plate and frame filter press of filtering technique advanced person.
For achieving the above object, the technical solution used in the present invention is:
A kind of vertical full-automatic plate and frame filter press, it is characterized in that: described filter press comprises horizontal sheet frame group 1, main body rack structure 2, opening and hold down gag 3 of sheet frame group, the filter cloth walking mechanism 4 that circulates automatically, filter cloth wash mill 5, automatic control system 6, hydraulic system 7, process pipeline system 8, open and hold down gag, process pipeline system and the filter cloth of horizontal sheet frame group, sheet frame group are fixed on the main body rack structure;
Described main body rack structure 2 is a kind of vertical support frames of being convenient to the motion of device in the vertical direction, work;
Described horizontal sheet frame group 1 is that the stack of multilayer sheet frame horizontal direction forms, and makes filter press structurally realize vertical structure, and the sheet frame group of stack has formed mill room, filter chamber and filtrate chamber;
The left and right sides of described multilayer sheet frame is provided with many deflector roll 27, and the annular filter cloth 12 that can realize automatic discharging function is set on the deflector roll 27;
Open and the hold down gag 3 of described sheet frame group comprises sheet frame 9,10 up and down, connecting plate 15, and counterweight connects pressing plate 16, and fast lifting hydraulic cylinder 17 holds out against hydraulic cylinder 18, locking pin 19; Sealing force big when the rapid movement of sheet frame group and work holds out against hydraulic cylinder 18 and realizes respectively by fast lifting hydraulic cylinder 17, has improved the stability and the operating efficiency of equipment;
The motion of described horizontal sheet frame group 1 is by multi-layer planar stack interlock, and the unlatching closure between the sheet frame drives the open closed that counterweight connects pressing plate 16 and connecting plate 15 realization sheet frame groups 1 by the fast lifting hydraulic cylinder 17 that is connected on the main body rack 2;
Described filter cloth circulation walking mechanism 4 is the filter cloth circulation walking mechanism that automatic discharging, filter cloth automatic deflection adjusting, filter cloth tensile force are adjusted automatically, filter cloth is located automatically;
Described filter cloth wash mill 5 is by washer box 22, shower nozzle 23, and washing pipe 24, washings control valve 25 constitutes, and has realized the automatic washing function of filter cloth;
Described automatic control system 6 and hydraulic system 7 and process pipeline system 8 have constituted the electromechanical integration function of filter press.
Mill room in the described horizontal sheet frame group 1 is embedded in the sheet frame 9 by barrier film 11, finishes the squeezing to the cake layer, squeezes the water out; The solid separation chamber by last sheet frame 9, barrier film 11, down sheet frame 10, constitute with the filter cloth 12 that is tiled in down on the sheet frame 10, finish separating of solid particle and liquid, also finish simultaneously and wash and blow-dry function; The barrier 14 of filtrate chamber below filter cloth 12, following sheet frame 10, sealing strip 13 and filter cloth constitutes, and finishes the discharging of filtrate.
Described filter cloth circulates walking mechanism 4 automatically mainly by deflector roll installing rack 26, annular filter cloth 12, deflector roll 27, and pressure roller 28, driven roller 29, CD-ROM drive motor 32, filter cloth deviation correcting device 30, filter cloth strainer 31 constitutes; Drive driven roller 29 by hydraulic motor, on each deflector roll 27, make iterative motion at the annular filter cloth 12 of driving under the effect of pressure roller 28.
Fast lifting hydraulic cylinder 17 in the described device is fixed between base 20 and the upper frame 21, and counterweight connects pressing plate 16 and is connected with the movable end of fast lifting hydraulic cylinder 17, drive sheet frame group 1 do lower seal, on lift action; Hold out against hydraulic cylinder 18 and be connected on the base 20, to the common sealed filter chamber function that realizes of 17 times motions of upper plate frame group 1 and fast lifting hydraulic cylinder.
Described device filter cloth wash mill 5 under the control of pinch valve 25, provides press water to shower nozzle 23 by water lines 24, and filter cloth 12 in the process of operation is carried out two-sided flushing.
In described control system 6, by filter cloth joint measurement sensor and displacement encoder filter cloth is located, make the seam of filter cloth not stop in sheet frame group filter chamber, prevent filtrate leakage; Frictional force by tensioning sensor and tensioning apparatus 31 adjustment filter clothes 12 and driven roller 29 prevents that filter cloth from skidding; Rectify a deviation by the skew of surveying inclined to one side sensor and 30 pairs of filter clothes 12 of deviation correcting device.
Opening and the stroke sensor observing and controlling of closing position of described device sheet frame by control system 6; the defencive function of hydraulic system 7 is realized by pressure sensor and control system 6; opening with closed of technology valve monitored by control system; and the force value of process pipeline system 8 monitored, realize defencive function.
Six programs such as the filtering technique of described filter press comprises that filtration, the extruding of barrier film, filter cake washing, the extruding of secondary barrier film, filter cake dry up, the discharge of filter cake and filter cloth washing;
(1), filter, after filter frame closure, slip enters each filter chamber by the slip pipeline.Filtrate enters filtrate chamber by filter cloth, discharges through the filtrate pipeline;
(2), the extruding of barrier film, water under high pressure enters barrier film top mill room by the water under high pressure pipeline, barrier film is to filter cloth surface extruding filter cake, thereby filtrate is extruded filter cake;
(3), filter cake washing, washing agent enters the filter chamber through the path identical with slip; Washing agent is filled with the filter chamber, and barrier film is lifted, and the water in the mill room is extruded from the barrier film top; Washing agent flows into discharge pipe after by filter cake and filter cloth;
(4), secondary barrier film extruding, after washing finishes, stay detergent use water under high pressure in the filter chamber and enter mill room above the barrier film by high-pressure water pipe, the method that barrier film pushes filter cake to the filter cloth surface is extruded away;
(5), filter cake dries up, finish the back in the extruding of secondary barrier film and dry up filter cake with compressed air; Air has been full of the filter chamber, lifts barrier film, makes the squeeze water on the barrier film discharge mill room; The air communication filter cake reduces to optimum degree with moisture in the filter cake, the filtrate chamber of emptying simultaneously;
(6), the discharge of filter cake and filter cloth washing, after filter cake dried up process and finishes, plate-and-frame module was opened, the filter cloth driving mechanism brings into operation, the filter cake on the filter cloth is discharged from the filter press both sides; Wash mill in the filter press washes the two sides of filter cloth simultaneously, to guarantee the filter effect self-consistentency.
The present invention is with respect to prior art, and its advantage is as follows: but its all day of 24h work is unattended, full automatic working; Blowing, detersive efficiency is good, and filter cake moisture is low; The material that is fit to sad filter; All filter cakes can be laid down in seconds and filter cloth is washed in noresidue simultaneously; Clean whole filter area by CIP, make filter cloth that very high working life and constant output be arranged; The floor space of filter is little, and output is but very big; The stainless steel manufacturing of whole filter, filter plate have the squeezing film that the PP material is made; Operation and maintenance cost are low, can change filter cloth in a few minutes at an easy rate; Production efficiency height, less energy consumption; Lack the versatility height of equipment, earning rate height, non-cutting time etc.
After adopting this filtering technique, advantage is as follows:
(1), filter cake is fully dewatered as much as possible, make the water content of filter cake reach best, save the expense of subsequent treatment by once above extruding.
(2), filtering technique can do once above filter cake washing according to worker's needs, washing agent can be changed immediately as required and need not to increase other equipment, makes the expanded range of the material of handling, the disposal ability raising, while operating cost has also reduced.
(3), filtering technique, can clear up filter cloth as required and not influence filter operation, reduced unproductive time.
(4), filtering technique, can also be in conjunction with above-described multiple measure to improve filter effect.
Description of drawings:
Fig. 1 is a full-automatic vertical filter press Facad structure schematic diagram;
Fig. 2 is a full-automatic vertical filter press side schematic view;
Fig. 3 is the plate frame structure schematic diagram;
Fig. 4 opens and the hold down gag schematic diagram for the sheet frame group;
Fig. 5 is walking of filter cloth and washing structural scheme of mechanism;
Fig. 6 forms schematic diagram for control system;
Fig. 7 forms schematic diagram for hydraulic system;
Fig. 8 is the process pipeline schematic flow sheet;
The specific embodiment:
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described in detail.
Vertical full-automatic plate and frame filter press comprises horizontal sheet frame group 1, main body rack structure 2, the opening and hold down gag 3 of sheet frame group, the filter cloth walking mechanism 4 that circulates automatically, filter cloth wash mill 5, automatic control system 6, hydraulic system 7, process pipeline system 8 etc.;
Referring to Fig. 1, shown in 2, open and hold down gag, process pipeline system and the filter cloth of horizontal sheet frame group, sheet frame group are fixed on the main body rack structure, circulate automatically walking mechanism, filter cloth wash mill and hydraulic system of filter cloth is arranged on the side of filter press, and the main electrical control cubicles of automatic control system is arranged on beyond the apparatus body.
Described main body rack structure 2 is a kind of vertical support frames of being convenient to the motion of device in the vertical direction, work;
Described horizontal sheet frame group 1 is that the stack of multilayer sheet frame horizontal direction forms, and makes filter press structurally realize vertical structure, and the sheet frame group of stack has formed mill room, filter chamber and filtrate chamber;
The left and right sides of described multilayer sheet frame is provided with many deflector roll 27, and the annular filter cloth 12 that can realize automatic discharging function is set on the deflector roll 27;
Open and the hold down gag 3 of described sheet frame group comprises sheet frame 9,10 up and down, connecting plate 15, and counterweight connects pressing plate 16, and fast lifting hydraulic cylinder 17 holds out against hydraulic cylinder 18, locking pin 19; Sealing force big when the rapid movement of sheet frame group and work holds out against hydraulic cylinder 18 and realizes respectively by fast lifting hydraulic cylinder 17, has improved the stability and the operating efficiency of equipment;
The motion of described horizontal sheet frame group 1 is by multi-layer planar stack interlock, and the unlatching closure between the sheet frame drives the open closed that counterweight connects pressing plate 16 and connecting plate 15 realization sheet frame groups 1 by the fast lifting hydraulic cylinder 17 that is connected on the main body rack 2;
Described filter cloth circulation walking mechanism 4 is the filter cloth circulation walking mechanism that automatic discharging, filter cloth automatic deflection adjusting, filter cloth tensile force are adjusted automatically, filter cloth is located automatically;
Described filter cloth wash mill 5 is by washer box 22, shower nozzle 23, and washing pipe 24, washings control valve 25 constitutes, and has realized the automatic washing function of filter cloth;
Entire equipment is that collection machinery, control, hydraulic pressure, pneumatics are the filter plant of one, and have various detections, protecting component to guarantee the realization of full-automatic function.Effective cooperation of the main system of these of equipment has realized the vertical structure of this filter press, makes it both be different from horizontal pressure filter, also is different from vertical type blotter press in general sense.
Referring to shown in Figure 3, the sheet frame group is multi-layer planar stack interlock, filters sheet frame stack back and forms three chambers, can finish the discharge of filtration, squeezing and filtrate respectively.
Mill room in the described horizontal sheet frame group 1 is embedded in the sheet frame 9 by barrier film 11, finishes the squeezing to the cake layer, squeezes the water out; The solid separation chamber by last sheet frame 9, barrier film 11, down sheet frame 10, constitute with the filter cloth 12 that is tiled in down on the sheet frame 10, finish separating of solid particle and liquid, also finish simultaneously and wash and blow-dry function; The barrier 14 of filtrate chamber below filter cloth 12, following sheet frame 10, sealing strip 13 and filter cloth constitutes, and finishes the discharging of filtrate.By such setting, filter, a barrier film extruding, filter cake washing, the extruding of secondary barrier film, filter cake dry up, filter cake blows off, the discharge of filter cake is all finished in these multiple benches chambers with whole actions that filter cloth washs.
Referring to shown in Figure 4, the sheet frame group open with hold down gag by up and down sheet frame, connecting plate, counterweight connect pressing plate, fast lifting hydraulic cylinder, hold out against hydraulic cylinder, locking pin is formed.Big sealing force is born by two kinds of multi-form oil cylinders respectively when the rapid movement of sheet frame group and work, sheet frame moves to when opening position and closed position, locking pin all will inject the locating hole on the column, counterweight is connected pressing plate to be positioned, in the time of the location, retaining jar extruding sheet frame is realized the sealing of sheet frame group, makes the full course of work of press filtration be achieved.The present invention has adopted quick two-way movement at the uniform velocity oil cylinder, and the gateway of oil is in a side, have compact conformation, connect good rigidly, good airproof performance, bear the pressure height, need not to be provided with buffer unit, motion steadily, carry out characteristics such as efficient height.
Fast lifting hydraulic cylinder 17 in the described device is fixed between base 20 and the upper frame 21, and counterweight connects pressing plate 16 and is connected with the movable end of fast lifting hydraulic cylinder 17, drive sheet frame group 1 do lower seal, on lift action; Hold out against hydraulic cylinder 18 and be connected on the base 20, to the common sealed filter chamber function that realizes of 17 times motions of upper plate frame group 1 and fast lifting hydraulic cylinder.
Referring to shown in Figure 5, described filter cloth circulates walking mechanism 4 automatically mainly by deflector roll installing rack 26, annular filter cloth 12, deflector roll 27, and pressure roller 28, driven roller 29, CD-ROM drive motor 32, filter cloth deviation correcting device 30, filter cloth strainer 31 constitutes; Drive driven roller 29 by hydraulic motor, on each deflector roll 27, make iterative motion at the annular filter cloth 12 of driving under the effect of pressure roller 28.The driving walking mechanism of filter cloth is by driven roller, formed by pressure roller and tens deflector rolls, and filter cloth has been realized snakelike circulation arrangement form, and the circulation walking is to realize automatic discharging and the assurance of washing automatically.Filter cloth because length is very long, deviation phenomenon can occur in running.The sideslip of filter cloth detects by photoelectric sensor, and the signal of detection calculates the motor that drives deviation correcting device by controller, and the rotating of motor is walked filter cloth between two parties.After sheet frame was opened, the walking process of filter cloth had been realized the automatic discharging of cake layer.During sheet frame group open and close, filter cloth need relax and tensioning.Adopt special entity, drive source adopts oil motor, and the suitable inverse time that the flow direction of change oil motor turnover oil drives hanging mechanism turns to realize that tensioning is with lax.Be to guarantee the instantaneous timeliness that filter cloth moves under this operating mode, auxiliary stand is set on the structure, increase a pair of guide wheel, prevent that moment from skidding to guarantee the depth of parallelism requirement between the guide wheel.During walking of filter cloth, the wash mill that is located at the bottom requires to open voluntarily according to program setting, by the positive and negative water spray of a plurality of shower nozzles to filter cloth, cleans filter cloth, and is durable to guarantee filter effect and filter cloth.
Referring to shown in Figure 6, described control system 6 is by central control unit, man-machine interface, probe unit, performance element.PLC is according to each sensor of probe unit, or near switch, or the detectable signal of travel switch, according to main setting program each signal is carried out computing, processing, or drive the magnetic valve action of performance element, or make motor rotation, or send the sound and light alarm signal.
Control system has central control unit, man-machine interface, probe unit, performance element.Central control unit comprises: PLC basic module, I/O module, I/O expansion module, A/D module; Man-machine interface comprises: touch-screen; Probe unit comprises: physical pressure sensor, pressure transmitter, electromagnetic proximity switch, photoelectricity travel switch, photoelectrical position sensor, temperature sensor, incremental encoder; Performance element comprises: hydraulic electromagnetic change valve, electromagnetism technology valve, motor, audible-visual annunciator.PLC is according to each sensor of probe unit, or near switch, or the detectable signal of travel switch, according to main setting program each signal is carried out computing, processing, or drive the magnetic valve action of performance element, or make motor rotation, or send the sound and light alarm signal.
Referring to shown in Figure 7, described hydraulic system 7 is by fluid pressure line, pump, a plurality of 3-position 4-way solenoid directional control valves, a plurality of two-position four-way solenoid directional control valves, plugging pin oil cylinder, snap action cylinder, retaining jar, hydraulic motor, accumulator, overflow valve, flow valve, pressure-reducing valve, choke valve, pressure sensor, filter, liquid level gauge, check valve, elements such as balanced valve are formed.This system provides power for technology valve 34, filter cloth CD-ROM drive motor 32, filter cloth tensioning motor 33, fast lifting hydraulic cylinder 17, stretch oil cylinder 18, and has formed the main body of the electromechanical integration function of equipment with control system 6.
Hydraulic system is made up of elements such as fluid pressure line, pump, a plurality of 3-position 4-way solenoid directional control valve, a plurality of two-position four-way solenoid directional control valve, plugging pin oil cylinder, snap action cylinder, retaining jar, hydraulic motor, accumulator, overflow valve, flow valve, pressure-reducing valve, choke valve, pressure sensor, filter, liquid level gauge, check valve, balanced valves.This system is technology valve, filter cloth CD-ROM drive motor, filter cloth tensioning motor, fast lifting hydraulic cylinder, stretch oil cylinder, and has formed the main body of equipment electromechanical integration function with control system.
Referring to shown in Figure 8, described process pipeline system 8 is by pipeline 35, technology pinch valve 34, and pump 36, pressure transmitter 37 is formed.
Material-handling pump can be under certain pressure reduction effectively filters filter material, and the power that water pump provides has been guaranteed squeezing effect and clean result, and air pump makes that filter cake dries up, filter cake blows off and is achieved.The technology pinch valve that integrates machinery, hydraulic pressure, control technology, rubber technology is the important assurance of this type filter press automatic operating, the technology pinch valve by hydraulic control realized stable, characteristics such as be active in one's movements, setting up of sensor of control makes the break-make of process pipeline realize intellectuality, and the employing of rubber core can be controlled the break-make of fluid media (medium) fast.The multichannel pressure transmitter can be monitored the running parameter of medium on the pipeline, effectively feeds back various Monitoring Data, by the processing of control module, controls effective work of other part performers.
Described automatic control system 6 and hydraulic system 7 and process pipeline system 8 have constituted the electromechanical integration function of filter press.
The process pipeline system is made up of pipeline, technology pinch valve, pump, pressure transmitter.Internally piloted valve, pump, transmitter, instrument are under the control of PLC, parameter and the time according to program setting controls charging, washing successively, operation such as push, dry up, expect to blow off, each technological action and parameter signal feed back to the parameter of central control unit and setting compares, thereby realizes the full automation of all technological operations.
By above method; the vertical full-automatic plate and frame filter press that this invention relates to has been realized the vertical structure that floor space is little; full automation operation, detection in real time and the automatic regulatory function of everything have been realized; realized the automatic protection functions of exercises; the working time has been shortened in the automation of action has increased the production capacity of equipment, and good airtight measure guaranteed that equipment does not have dust and liquid contamination.The advanced technology that this equipment adopts, the components and parts function admirable is a kind of solid-liquid separating equipment that extensive use is arranged.
Six programs such as a kind of filtering technique of vertical full-automatic plate and frame filter press, a kind of filtering technique of vertical full-automatic plate and frame filter press comprise that filtration, the extruding of barrier film, filter cake washing, the extruding of secondary barrier film, filter cake dry up, the discharge of filter cake and filter cloth washing.Its concrete course of work is as follows:
(1) pre-filtering: when the quick oil cylinder of vertical full-automatic plate and frame filter press moves downwards, then locking pin locking.At last, operation sealing cylinder upwards, until reaching required sealing load, sheet frame carried out hermetically closing after, forms airtight filter chamber, slip enters the filter chamber from slurry vessel by shurry pump, filtrate enters filtrate chamber, liquid pipeline discharge after filtration.Filter cake forms on filter cloth simultaneously.
(2), once extruding: after charging was finished, water under high pressure entered the mill room of the filtration sheet frame group barrier film top of vertical full-automatic plate and frame filter press by high-pressure water hose, and barrier film extruding filter cake squeezes out filter cake with filtrate and enters filtrate chamber.
(3), washing (the optional stage can require to select according to material): after once extruding was finished, washing agent was pumped into the filter chamber of the filtration sheet frame group of vertical full-automatic plate and frame filter press, entered filtrate chamber after by filter cake and filter cloth to discharge through the filtrate pipeline.Simultaneously the water under high pressure in the mill room is squeezed back the high pressure water station.This process also can repeatedly repeat according to demand.
(4), secondary extrusion (optional stage): after the washing stage, the method for detergent use in above-mentioned (2) stage of staying in the filtration sheet frame group filter chamber of vertical full-automatic plate and frame filter press pushed away.
(5), air drying: the air that compressed air enters by distributing pipe has been full of the filter chamber of the filtration sheet frame group of vertical full-automatic plate and frame filter press, and the air-flow of feeding reduces to optimum degree with filter cake moisture content.
Discharging is prepared, and compressed air enters the mill room of the filtration sheet frame group barrier film top of vertical full-automatic plate and frame filter press, pushes 3 seconds.
(6) filter cake discharging, the sheet frame of vertical full-automatic plate and frame filter press by downward driving sealing cylinder, locking pin, pressing plate, upwards drive quick oil cylinder sheet frame opened fully.When sheet frame is opened, utilize the distinctive filter cloth circulation of vertical full-automatic plate and frame filter press walking mechanism among the present invention with filter cake removal from the filter cloth automatically.
Filter cloth washs, and opens the two-sided washing filter cloth of filter cloth cleaning device of vertical full-automatic plate and frame filter press, and filter cloth circulation walking so process can be carried out simultaneously with the filter cake discharging, has been shortened man-hour.Finish a work period.
The process pipeline system is made up of pipeline, technology pinch valve, pump, pressure transmitter.Internally piloted valve, pump, transmitter, instrument are under the control of PLC, parameter and the time according to program setting controls charging, washing successively, push, dry up, expect to blow off and operations such as distinctive filter cloth circulation walking discharging, washing filter cloth, each technological action and parameter signal feed back to the parameter of central control unit and setting and compare, the whole operation process is to reduce working strength of workers according to the full-automatic operation that setting program is finished, and has improved operating efficiency and utilization rate of equipment and installations.
Claims (8)
1, a kind of vertical full-automatic plate and frame filter press, it is characterized in that: described filter press comprises horizontal sheet frame group (1), main body rack structure (2), opening and hold down gag (3) of sheet frame group, the filter cloth walking mechanism (4) that circulates automatically, filter cloth wash mill (5), automatic control system (6), hydraulic system (7), process pipeline system (8), open and hold down gag, process pipeline system and the filter cloth of horizontal sheet frame group, sheet frame group are fixed on the main body rack structure;
Described main body rack structure (2) is a kind of vertical support frame of being convenient to the motion of device in the vertical direction, work;
Described horizontal sheet frame group (1) is that the stack of multilayer sheet frame horizontal direction forms, and makes filter press structurally realize vertical structure, and the sheet frame group of stack has formed mill room, filter chamber and filtrate chamber;
The left and right sides of described multilayer sheet frame is provided with many deflector roll (27), and deflector roll (27) is gone up the annular filter cloth (12) that setting can realize automatic discharging function;
Open and the hold down gag (3) of described sheet frame group comprises sheet frame (9) (10) up and down, connecting plate (15), and counterweight connects pressing plate (16), and fast lifting hydraulic cylinder (17) holds out against hydraulic cylinder (18), locking pin (19); Sealing force big when the rapid movement of sheet frame group and work holds out against hydraulic cylinder (18) and realizes respectively by fast lifting hydraulic cylinder (17), has improved the stability and the operating efficiency of equipment;
The motion of described horizontal sheet frame group (1) is by multi-layer planar stack interlock, and the unlatching closure between the sheet frame drives the open closed that counterweight connects pressing plate (16) and connecting plate (15) realization sheet frame group (1) by the fast lifting hydraulic cylinder (17) that is connected on the main body rack (2);
Described filter cloth circulation walking mechanism (4) is that automatic discharging, filter cloth automatic deflection adjusting, filter cloth tensile force are adjusted automatically, the filter cloth filter cloth circulation walking mechanism of location automatically;
Described filter cloth wash mill (5) is by washer box (22), shower nozzle (23), and washing pipe (24), washings control valve (25) constitutes, and has realized the automatic washing function of filter cloth;
Described automatic control system (6) and hydraulic system (7) and process pipeline system (8) have constituted the electromechanical integration function of filter press.
2, vertical full-automatic plate and frame filter press according to claim 1 is characterized in that: the mill room in the described horizontal sheet frame group 1 is embedded in the sheet frame (9) by barrier film (11), finishes the squeezing to the cake layer, squeezes the water out; The solid separation chamber by last sheet frame (9), barrier film (11), down sheet frame (10), constitute with the filter cloth (12) that is tiled in down on the sheet frame (10), finish separating of solid particle and liquid, also finish simultaneously and wash and blow-dry function; The barrier (14) of filtrate chamber below filter cloth (12), following sheet frame (10), sealing strip (13) and filter cloth constitutes, and finishes the discharging of filtrate.
3, vertical full-automatic plate and frame filter press according to claim 1 and 2, it is characterized in that: filter cloth circulates walking mechanism (4) automatically mainly by deflector roll installing rack (26), annular filter cloth (12), deflector roll (27), pressure roller (28), driven roller (29), CD-ROM drive motor (32), filter cloth deviation correcting device (30), filter cloth strainer (31) constitutes; Drive driven roller (29) by hydraulic motor, on each deflector roll (27), make iterative motion at the annular filter cloth of driving (12) under the effect of pressure roller (28).
4, vertical full-automatic plate and frame filter press according to claim 1 and 2, it is characterized in that: the fast lifting hydraulic cylinder (17) in the described device is fixed between base (20) and the upper frame (21), counterweight connects pressing plate (16) and is connected with the movable end of fast lifting hydraulic cylinder (17), drive sheet frame group (1) do lower seal, on lift action; Hold out against hydraulic cylinder (18) and be connected on the base (20), move down to upper plate frame group (1) and fast lifting hydraulic cylinder (17) and realize the sealed filter chamber function jointly.
5, vertical full-automatic plate and frame filter press according to claim 1, it is characterized in that: described device filter cloth wash mill (5) by water lines (24) under the control of pinch valve (25), provide press water to shower nozzle (23), filter cloth (12) in the process of operation is carried out two-sided flushing.
6, vertical full-automatic plate and frame filter press according to claim 1, it is characterized in that: in control system (6), by filter cloth joint measurement sensor and displacement encoder filter cloth is located, make the seam of filter cloth not stop, prevent filtrate leakage in sheet frame group filter chamber; Frictional force by tensioning sensor and tensioning apparatus (31) adjustment filter cloth (12) and driven roller (29) prevents that filter cloth from skidding; By surveying inclined to one side sensor and deviation correcting device (30) skew of filter cloth (12) is rectified a deviation.
7, vertical full-automatic plate and frame filter press according to claim 1; it is characterized in that: the opening and the stroke sensor observing and controlling of closing position of described device sheet frame by control system (6); the defencive function of hydraulic system (7) is realized by pressure sensor and control system (6); opening with closed of technology valve monitored by control system; and the force value of process pipeline system (8) monitored, realize defencive function.
8, say the filtering technique of described vertical full-automatic plate and frame filter press according to claim 1, it is characterized in that: six programs such as the filtering technique of described filter press comprises that filtration, the extruding of barrier film, filter cake washing, the extruding of secondary barrier film, filter cake dry up, the discharge of filter cake and filter cloth washing;
(1), filter, after filter frame closure, slip enters each filter chamber by the slip pipeline.Filtrate enters filtrate chamber by filter cloth, discharges through the filtrate pipeline;
(2), the extruding of barrier film, water under high pressure enters barrier film top mill room by the water under high pressure pipeline, barrier film is to filter cloth surface extruding filter cake, thereby filtrate is extruded filter cake;
(3), filter cake washing, washing agent enters the filter chamber through the path identical with slip; Washing agent is filled with the filter chamber, and barrier film is lifted, and the water in the mill room is extruded from the barrier film top; Washing agent flows into discharge pipe after by filter cake and filter cloth;
(4), secondary barrier film extruding, after washing finishes, stay detergent use water under high pressure in the filter chamber and enter mill room above the barrier film by high-pressure water pipe, the method that barrier film pushes filter cake to the filter cloth surface is extruded away;
(5), filter cake dries up, finish the back in the extruding of secondary barrier film and dry up filter cake with compressed air; Air has been full of the filter chamber, lifts barrier film, makes the squeeze water on the barrier film discharge mill room; The air communication filter cake reduces to optimum degree with moisture in the filter cake, the filtrate chamber of emptying simultaneously;
(6), the discharge of filter cake and filter cloth washing, after filter cake dried up process and finishes, plate-and-frame module was opened, the filter cloth driving mechanism brings into operation, the filter cake on the filter cloth is discharged from the filter press both sides; Wash mill in the filter press washes the two sides of filter cloth simultaneously, to guarantee the filter effect self-consistentency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710017904A CN101091846B (en) | 2007-05-22 | 2007-05-22 | Vertical type full automatic plate-and-frame filter press, and filter technique |
Applications Claiming Priority (1)
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