CN1004120B

CN1004120B - Washing apparatus for press filter

Info

Publication number: CN1004120B
Application number: CN85106556.2A
Authority: CN
Inventors: 牧之田贡
Original assignee: Kurita Machinery Manufacturing Co Ltd
Current assignee: Kurita Machinery Manufacturing Co Ltd
Priority date: 1985-08-31
Filing date: 1985-08-31
Publication date: 1989-05-10
Also published as: CN85106556A

Abstract

The present invention relates to a cleaning device of a filter press, which is used for cleaning filter cloth or a filter plate after filtration. The cleaning device comprises a supporting frame, a telescoping frame, a liquid cylinder, a cleaning liquid jet tube, a multi-stage telescopic tube and a flexible conduit, wherein the supporting frame is arranged above the filter plate; the telescoping frame is arranged on the supporting frame; the liquid cylinder is connected with a middle pivot shaft of the telescoping frame by a connecting rod of the telescoping frame; the cleaning liquid jet tube is provided with a jet opening and is connected with a connecting rod splicing part of the lower part of the telescoping frame; the multi-stage telescopic tube is arranged at the connecting part of the supporting frame, the telescoping frame and the cleaning liquid jet tube for maintaining the level state of the cleaning liquid jet tube; the flexible conduit is connected with the cleaning liquid jet tube and moves with the expansion and the contraction of the telescopic tube.

Description

Cleaning device for filter press

The invention relates to cleaning device for filter press; Particularly about after finishing filtration, when piece ground of filter when movably the end plate direction is separated, be used for cleaning the device of the filter cloth that is filtered the plate tension; Or about with after removing on the filter cloth slave plate, the device on cleaning and filtering plate surface.

Filter cleaner by the vertical mobile and horizontal jet pipe of scaling device between the filter that separates is known; As BP 2,046, disclosed in No. 117.

On the other hand, in BP 2,046, in No. 117, a link rod in the lazy-tong link rod bindiny mechanism is as the cleaning fluid pipeline, and the two ends of cleaning fluid pipeline are connected by the liquid seal nipple, the middle part is contained on the connecting rod another parts that this root connecting rod is a lazy-tong.The cleaning fluid pipeline is done the convergent-divergent motion with connecting rod.The nethermost parts of lazy-tong are the jet pipes with some liquid spray orifices, have a link rod to be connected on the one end, and this connecting rod makes jet pipe rise or descend with horizontal attitude; But, because the connecting rod of actuator is to be connected on obliquely on the position of departing from lazy-tong connecting rod width center, so lazy-tong just has the trend of deflection.

Another shortcoming of this structure is to be easy to occur fluid seepage; This is because the integrity of the anti-drip valve holder structure of cleaning fluid pipe ends is difficult to keep in the lazy-tong.

The present invention is exactly the improvement about cleaning device for filter press.The present invention attempts to propose a kind of cleaning device for filter press, and its design can make the pressure medium actuator normally move to make filter cleaner be stabilized in level, and has removed when the filter cleaning device is moved the filter top to the requirement to spatial altitude.

According to the filter cloth cleaning device of a kind of filter press proposed by the invention, comprise the ways that is installed in filter top, the carriage that can move along the filter orientation is housed, a pressure medium actuator that is contained on the said carriage on the ways; The lazy-tong that energy reciprocally moves in vertical direction, the part of splicing of its upper links is connected with the bottom of carriage; The connecting rod of said pressure medium actuator is connected on the central pivot of said lazy-tong; Has the liquid jet of giving fixed number order spray orifice; Jet pipe is contained in the lazy-tong lower link part place of splicing, and places along the filter width; The guide post that has extensible pipe vertically is installed in and relative both sides equidistant with said cleaning fluid jet pipe center, and said guide post telescopically inserts in the conduit that is contained on the carriage; And be connected on the cleaning fluid jet pipe, can be along with the extension of lazy-tong and a flexible conduit of contractile motion.

According to the present invention, when being connected on downwards, the connecting rod of actuated by pressure medium device vertically advances on the lazy-tong central pivot or when withdrawing, and be installed in the splice cleaning fluid jet pipe of part of lazy-tong lower link and just can move up and down with certain speed of service effectively.This speed is times over the speed that moves both vertically of said connecting rod.

According to the present invention, on the same line of the movement locus when the pressure medium actuator is arranged on extension of lazy-tong connecting rod central pivot and contraction, just on the trajectory during the lazy-tong central motion, the actuator drive link is connected on the axis of lazy-tong mid portion.Therefore, the actuator drive link moves both vertically to the axis transmission of lazy-tong quite reasonablely, and make the latter along the filter surface smoothing move, and do not cause the deflection of lazy-tong.

In addition, because the vertical guide stem on the cleaning fluid jet pipe fixture of lazy-tong lower end is in the conduit that telescopically inserts on the carriage, and vertical guide stem is on the equidistant position, both sides, said cleaning fluid jet pipe center.So the cleaning fluid jet pipe can be parallel to the action of filter surface exactly and carry out washing and cleaning operation effectively with horizontal attitude.

Fig. 1 is the front view of one embodiment of the invention;

Fig. 2 is the side view of clinker scavenge unit among Fig. 1;

Fig. 3 is the plane of Fig. 1;

Fig. 4 is the right side view of Fig. 1, and the clinker scavenge unit omits from figure.

As shown in Figure 1 and Figure 4, the filter cloth cleaning device of present embodiment is contained on the carriage 3 above the filter 1.Carriage 3 is installed on the ways 2 above the filter, and can rotate along the orientation of filter, and each ways all is the form of channel-section steel, and is fixed on the goalpost 4, and goalpost 4 is made around the form of filter plate 1 top and left and right side.Said structure also can be made other style.Carriage 3 both sides have two groups of rollers 5, and these rollers 5 are installed in the groove of ways 2.Carriage 3 be connected on the chain 6 a bit, 6 on chain makes chain extend along ways 2 on pair of sprocket 39.Chain 6 is by the not motor of expression driving in the drawings.When 1 piece ground of filter separated successively, chain 6 correspondingly moved, thereby carriage 3 is moved along separating opposite direction with filter 1.

There is a cylinder 8 to be installed in vertically downward on the surface of horizonal base plate 7 of carriage 3, contiguous filter 1.Lazy-tong 9 is contained in the lower surface of horizonal base plate 7.The last end link of lazy-tong 9 part 10 of splicing is contained on the pivot of horizonal base plate 7 lower surfaces, and the end link part 11 of splicing links to each other with a cleaning fluid jet pipe 12 by jet pipe fixed part 17 down.Connect in the maincenter fulcrum part 13 of lazy-tong 9 two cross one another shaft portion lazy-tong 9.Maincenter fulcrum part 13 is connected on the front end of the connecting rod 14 of cylinder 8 rotationally.The nozzle or the spray orifice 15 that have institute's number required on the cleaning fluid jet pipe 12, these spray orifice 15 cross direction profiles are between the filter 1 that separates, jet pipe 12 also is connected to a flexible conduit 16 by jet pipe fixture 17, when lazy-tong 9 elongations and contraction, this conduit is done vertical moving together with cleaning fluid jet pipe 12.

Flexible conduit 16 extends upward from jet pipe fixture 17, is bent to form a horizontal component near the upper end of cylinder 8, as shown in Figure 4, and then is bent downwardly, rotatable at last being connected on the nipple 19.The other end of nipple 19 is connected on the cleaning fluid feed conduit 18 rotationally.Cleaning fluid feed conduit 18 flatly is connected on the carriage 3.When flexible conduit 16 is stretched owing to moving downward of cleaning fluid jet pipe 12, it will move along the ways on the carriage 3 20, when the flexible pipe tension, nipple 19 rotates counterclockwise around cleaning fluid feed conduit 18, leans against after the rotation on the last retainer 26 outstanding on the carriage 3.Flexible conduit 16 can correspondingly provide 12 declines of cleaning fluid jet pipe required necessary length.When 12 scaled 9 of cleaning fluid jet pipes move up, flexible pipe 16 will form with respect to the overlength section that moves upward.This overlength section is rotated and is tightened up by nipple 19, can not fluff, and at this moment nipple 19 forwards solid line position to by dotted line position shown in Figure 4, leans against down on the retainer 27.

For the multi-stage expansion pipe 21 that keeps cleaning fluid jet pipe level is to be contained in carriage 3 and lazy-tong be connected partly with jet pipe fixture 17 between.As shown in Figure 1, each multi-stage expansion pipe 21 comprises a first order slip pipe 23 and a second level slip pipe 25.Slide in the conduit 22 of first order slip pipe 23 on the horizonal base plate 7 that is fixed on carriage 3.And install an arresting disc 24 at an upper portion thereof.The number of slip pipe is not limited to 2, but change according to the vertical range that cleaning fluid jet pipe 12 will travel.

In addition, for aforementioned cleaning device, be provided with clinker scavenge unit 32(as shown in Figure 4) on the left side and the right side of carriage 3.This clinker scavenge unit passes to momentum each filter 1 after filtration is finished, thereby the caking that will stick on the filter cloth 31 is disposed.Every block of filter cloth 31 is suspended on the cantilever by a spring 30 by a hanging stick 29.These cantilevers project upwards from each filter 1 relative top.Clinker scavenge unit 32 is driven by motor 32.Each clinker scavenge unit 32 has an impact structure 34, and it passes through hanging stick 29 to filter cloth 31 transmitting vibrations.Each impact structure 34 is vertically moved by cylinder 36.Cylinder 36 is installed on the oscillating plate 35, and the centre of this plate and the left and right sides, top are rotatably connected on the bent axle 37.The mobile device of numeral 38 expression filters.

The course of work of cleaning device will be described below.

After finishing filtration, a removable end plate withdrawal that coacts and be used for clamping some filters 1 with a fixing end plate.After this removable end plate withdrawal, filter 1 just forwards fixing end plate on one side one by one by filter mobile device 38.

Filter 1 each shift-in motion is all detected such as the same detecting element of limit switch.After receiving this detection signal, starts by a carriage drive motor that does not show in the drawings.Carriage 3 is moved with the opposite direction of filter shift-in in ways 2 upper edges.When the cleaning fluid jet pipe 12 that is carried by carriage 3 placed between the filter 1 separately owing to the operation of carriage 3, carriage is stop motion just.Cylinder 8 has placed cleaning fluid jet pipe 12 the wait device on filter top by lazy-tong 9.Feeding compressed air this moment descends connecting rod 14.Connecting rod 14 is connected on the central pivot 13 of lazy-tong 9.Thereby lazy-tong is extended downwards, make that being connected on the splice cleaning fluid jet pipe of part 11 of lazy-tong 9 lower link by jet pipe fixture 17 drops between the filter.The cleaning fluid jet pipe is by multi-stage expansion pipe 21 maintenance levels simultaneously.

Drop between the filter 1 cleaning fluid jet pipe 12 by not in the drawings the expression cleaning fluid liquid source.Provide cleaning fluid by cleaning fluid feed conduit 18 and flexible conduit 16, by the cleaning fluid filter cloth 31 just capable of washing of nozzle or spray orifice 15 ejections.When the cleaning fluid jet pipe arrived position, the end, the compressed air of presenting in cylinder 8 changed the road to the position that promotes connecting rod 14.So the cleaning fluid jet pipe just moves up, and continue jet cleaning liquid,, just stop atomizing of liquids up to moving on to filter 1 when jet pipe when above.

When cleaning fluid jet pipe 12 rose to its original holding fix, compressed air had stopped to presenting just of cylinder 8.After next piece filter 1 is by shift-in, begin to repeat above-mentioned same motion process again.

All move on to fixed charge method end plate one rear flank at all filters 1 and carry out in the last cleaning, when cleaning fluid jet pipe 12 vertically move back and forth finish cleaning after, the carriage drive motor just reverses and makes carriage 3 be back to its initial position.So far carriage 3 is out of service, waits for cleaning next time.

Device according to present embodiment, carriage is arranged on the ways of filter configuration section top, therefore it can move along the direction that filter is arranged, the lazy-tong that the lower end is connected to the cleaning fluid jet pipe is moved both vertically by the air cylinder driven that can stretch downwards, and the cleaning fluid jet pipe comes the maintenance level by the horizontal keeper of the multi-stage expansion form of tubes that is contained in both sides, lazy-tong bonding pad.

By this layout, the stroke up and down of cleaning fluid jet pipe can be realized effectively by a cylinder.The length of this cylinder approximately is half of the stroke distances that requires, and by reducing the size that its height can dwindle cleaning device.

In addition, the cleaning device that moves above the filter arrange regional can separate with other device in filter mobile device and the filter press and make separately, and can obtain preferable performance by simple arrangement.

Claims

1, a kind of cleaning device for filter press comprises: a plurality of folded mutually filter, adjacent filters that lean on can separate and draw close relatively, are contained in the ways of said filter top; A carriage that is contained in movably on the said ways, carriage can along filter separately and the direction of drawing close move, one lazy-tong and a lazy-tong actuator, it is characterized in that, this lazy-tong has a upper links that is connected with the said carriage part of splicing, a bottom connecting rod splice part and the point of the medial pivot between the two; One be contained in described lower link splice the part on the cleaning fluid jet pipe; Described actuator is contained on the described carriage, and be connected with described medial pivot point, the axis of this actuator and described upper and lower splice the part and the medial pivot point be aligned on the vertical line, thereby vertically stretch out and withdrawal is stretched out lazy-tong and withdrawn by actuator, so that promote and the described jet pipe of let-down; Also have a plurality of at the nozzle that is distributed on the width of filter on the described jet pipe, a flexible cleaning fluid catheter that is contained in movably on the carriage, one of conduit terminates on the described jet pipe, the other end links to each other with a cleaning liquid source, the end that conduit is connected with jet pipe can rise and landing with jet pipe, present cleaning fluid by conduit to jet pipe simultaneously, cleaning fluid is sprayed from nozzle.

2, cleaning device for filter press as claimed in claim 1, it is characterized in that described actuator comprises piston and cylinder portion of a pressurized fluid driven, described cylinder is contained on the carriage, its longitudinal axis is vertical basically, so that the piston rod outer end that is contained on the piston is moved up and down, the outer end of piston rod is rotatably connected on the described medial pivot point.

3, cleaning device for filter press as claimed in claim 1 or 2 is characterized in that comprising that one is connected splice jet pipe fixture on the part of lower link pivotly, the axial alignment of this jet pipe fixture and actuator, and cleaning liquor pipe is connected on the jet pipe fixture.

4, cleaning device for filter press as claimed in claim 3 is characterized in that comprising a plurality of multi-stage expansion pipe assemblies that are contained on the said carriage, and they are connected with the fixture of jet pipe or jet pipe, are the level of state basically to keep said jet pipe.

5, cleaning device for filter press as claimed in claim 4, it is characterized in that each multi-stage expansion pipe assembly comprises that one substantially vertically is contained in outer guide sleeve tube on the described carriage with its central axis, and telescopically is contained in the elongated tubular element in the described pilot sleeve, and the lower end of tubular element links to each other with described jet pipe.