CN85105830B

CN85105830B - Squeezing type automatic filter press

Info

Publication number: CN85105830B
Application number: CN85105830A
Authority: CN
Inventors: 宋家骏; 赵鸿才
Original assignee: Beijing General Research Institute of Mining and Metallurgy
Current assignee: Beijing General Research Institute of Mining and Metallurgy
Priority date: 1985-08-01
Filing date: 1985-08-01
Publication date: 1988-03-02
Also published as: CN85105830A

Abstract

The invention relates to a squeezing type automatic filter press for solid-liquid separation, which comprises a pressing mechanism, a fixed pressing plate, a movable pressing plate, a main beam, a filter plate, a pull-open chain, a driving device, a traction shaft, a cloth washing tank and the like. The device is characterized in that a driving device for driving a traction shaft to pull the filter cloth to travel back and forth drives the traction shaft to pull the filter cloth to travel back and forth by using parallel connecting rods; each filter plate is provided with a respective closed cloth washing groove, and the filter cloth washing and the residue discharging are carried out simultaneously; the boss is added in the middle of the filter plate to prevent the filter plate from cracking. The invention has the advantages of reliable work, simple and compact structure, no independent time occupation for cleaning the filter cloth, and the like. It is suitable for the departments of metallurgy, petroleum, chemical industry, dye, medicine, environmental protection, etc.

Description

Automatic filter press of squeeze type

The invention belongs to a kind of solid-liquid separating equipment, be mainly used in the Separation of Solid and Liquid in the production processes such as metallurgy, oil, chemical industry, dyestuff, medicine, environmental protection.

As everyone knows, it is a lot of to be used at present the automatic pressure filter kind of Separation of Solid and Liquid both at home and abroad.The automatic plate and frame filter press of BAJZ type that China produces is made up of the electrodeless banded filter cloth of the guide roller under hold-down mechanism, fixation clip, girder, movable pressing board, filter plate, filter frame, the filter plate, the guide roller on the filter frame, the groove that washes cloth, carry-over pinch rolls and monoblock.Draw back behind the sheet frame with the motor drives carry-over pinch rolls with the traction filter cloth slag dumping of walking between guide roller, filter cloth is scrubbed when washing cloth groove.The shortcoming of this filter press is that the electrodeless banded filter cloth of monoblock wanders off in the process of walking easily, and it is long that the monoblock filter cloth is washed time of one time, and filter plate is damaged easily, and the flexible order of the telescopic spiral hold-down mechanism of the big little leading screw of screw set is not normal sometimes.

United States Patent (USP) " filter press " (patent No. 4155830) partly is made up of hold-down mechanism, fixation clip, girder, movable pressing board, filter plate, guide roller, drive unit etc.Every filter plate is separately with a filter cloth.Filter cloth is electrodeless band shape, is contained on the filter plate guide roller up and down.Fix a cross bar on every block of filter cloth, the two ends of cross bar are inserted in the elongated slot of two drive links.Push cross bar round moving in elongated slot when drawing back filter plate.After drawing back filter plate, when actuated element drive drive link was gone up back and forth movement down, cross bar was followed and is gone up back and forth movement under the drive link, and is being with filter cloth to walk between last lower steering roll, to reach the purpose of slag dumping with motor.Push and compress filter plate behind the slag dumping, feed the big flow water backwash filter cloth that washes cloth from feed pipe.And then the disposable tension filter plate, drive link is raised to upper position, push, compress filter plate again, filter next time.The slag dumping mode of this filter press is reliable, and filter cloth can not wander off.Its shortcoming is the transmission system complexity of drive link, structure is huge, and drive link is gone up the space that back and forth movement has occupied the filter plate both sides fully down, so filter plate can not support with the girder of both sides, must increase the beam of hanging filter plate on the filter plate top, this makes troubles for again the mounting or dismounting filter plate.Its shortcoming is that also filter wash cloth process holding time is many, and water consumption is big, is not easy to clean filter cloth at every turn.

The objective of the invention is to create a kind of simple and compact for structure, slag dumping mode effectively, clean filter cloth filter press easily.This filter press by fixation clip, can come and go mobile movable pressing board, drive the girder of the telescopic spiral hold-down mechanism of movable pressing board, be connected and fixed pressing plate and hold-down mechanism, the bunchiness filter plate between fixation clip and movable pressing board, pulling bunchiness filter plate are equidistantly arranged draws back chain, clean the axis of traction of the groove that washes cloth, the traction walking of filter cloth of filter cloth, the drive unit etc. that drives the axis of traction rotation constitutes.The drive unit that wherein drives the axis of traction rotation is the drive unit of parallel rod formula, and this drive unit is driven into displacement with parallel rod and puts the axis of traction rotation that is not fixed on a place, is gone and back running by axis of traction traction filter cloth; Every filter plate is equipped with the closed groove that washes cloth separately; Add boss in the middle of the filter plate; On the fixing charging aperture sealing gasket arranged, gang up hole and opening; One end of the little leading screw of telescopic spiral hold-down mechanism and big leading screw is equipped with saucer spring and video disc spring (or other elastic parts) respectively.That the advantage of this filter press is is simple and compact for structure, make than being easier to, installing and removing filter plate and make things convenient for; The slag dumping mode is effective; Clean filter cloth and carry out simultaneously with walking filter cloth slag dumping, not independent holding time, each slag dumping can clean all filter clothes easily; Boss in the filter plate can prevent the filter plate breakage effectively; Big saucer spring in the hold-down mechanism can prevent the sequence of movement of big leading screw and little leading screw not normal.

The present invention will make your clearer understanding feature of the present invention by the explanation and the accompanying drawing of the following example, wherein:

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

Fig. 2 is the A-A cutaway view among Fig. 1.

Fig. 3 is the B-B cutaway view among Fig. 2.

Fig. 4 is the C-C cutaway view among Fig. 1.

Fig. 5 is the D-D cutaway view among Fig. 2.

Fig. 6 is the rearview of the filter plate part among Fig. 2.

Fig. 7 is the E-E cutaway view among Fig. 6.

Fig. 8 is the cutaway view of telescopic spiral hold-down mechanism.

The present invention be (as shown in Figure 1) by hold-down mechanism 1, girder 2, fixation clip 3, movable pressing board 4, filter plate 5, axis of traction 6, the groove 7 that washes cloth, drive unit 8, draw back the automatic filter press of squeeze type that chain 9, tank 10, distributing pipe 11 etc. partly constitute.The two ends of two girders 2 connect with hold-down mechanism 1 and fixation clip 3 respectively.Movable pressing board 4 is placed on the girder 2 of level.The vertical filter plate 5 of bunchiness is placed on the girder 2 between fixation clip 3 and the movable pressing board 4.Article 4, it is hinged movable pressing board 4 and whole filter plate 5 to draw back chain 9.Axis of traction 6 is equipped with at the top of filter plate 5, and the groove 7 that washes cloth is equipped with in the bottom of filter plate 5.Transmission device 8 is contained in the top of filter plate 5.Tank 10 is positioned at the side-lower of the groove 7 that washes cloth.

As shown in Figure 1, driving shaft 12 in the drive unit 8 and bearing 13 thereof are contained on the girder 2.Driven shaft 14 and bearing 15 thereof are contained on the fixation clip 3.Crank 16 is all being fixed at the two ends of driving shaft 12 and driven shaft 14.Fixing eccentric shaft 17 on the crank 16.One end of parallel rod 18 is contained on the eccentric shaft 17 of driving shaft 12 1 ends, and the other end is contained on the eccentric shaft 17 of driven shaft 14 1 ends.Distance of shaft centers between driving shaft 12 and the driven shaft 14 equals the hole heart distance at parallel rod 18 two ends.The shaft of parallel rod 18 has vertical elongated slot 19.Driving shaft 12 is driven through reductor 21 and driving-chain 22 by motor 20.

As shown in Figure 2, two bearings 23 of axis of traction 6 are fixed on the top of filter plate 5, and two cranks 24 are fixed at the two ends of axis of traction 6, are fixing eccentric shaft 25 on the crank 24, roller 26 is housed on the eccentric shaft 25, and eccentric shaft 25 and roller 26 are positioned at 19 li of elongated slots on the shaft of parallel rod 18.

As shown in Figure 3, fix two drives 27 on the axis of traction 6, plush copper 28 is arranged on the drive 27.Porose 29 traction belt 30 is driven by drive 27, and two cross bars 31 are being overlapped at the two ends of traction belt 30.Filter cloth 32 is walked around the guide roller 33 in the groove 7 that washes cloth, and the two ends of filter cloth 32 are enclosed within respectively on two cross bars 31.

As shown in Figure 4, sliding sleeve 34 and feather key 35 are housed on the driven shaft 14 in the drive unit 8, driven shaft 14 usefulness feather keys 35 drive sliding sleeve 34.Nut 36 is contained on the external screw thread of sliding sleeve 34, and the block 37 that is fixed on the fixation clip 3 prevents nut 36 to follow sliding sleeve 34 motions.Cam 38 is fixed on the two ends of sliding sleeve 34, be fixed on the fixation clip 3 by the travel switch 39 of cam 38 controls.

As shown in Figure 5, the groove 7 that washes cloth has cell body 40, scraper plate 41, guide roller 33, water pipe 42 and is contained in nozzle 43 on the water pipe 42, and an end of the cell body 40 water out 70(that washes cloth sees Fig. 2).

As shown in Figure 2, the filtering surface of filter plate 5 is covered with groove 44, and duct 45 makes these grooves 44 and gangs up hole 46 and links.One circle sealing surface 47 is arranged around the filtering surface, in the middle of the filtering surface 1 or several boss 48 are arranged, the height of boss 48 is identical with the height of sealing surface all around 47.Filter cloth 32 of the outer illiteracy of the filtering surface of filter plate 5.

As shown in Figure 6, the back side of the filtering surface of filter plate 5 is matrixs, and a circle sealing surface 49 is also arranged all around.In the middle of the recessed portion 1 or several boss 50 are arranged also, the position of boss 50 is aimed at one by one with boss 48, and the height of boss 50 is identical with the height of sealing surface all around 49.Recessed portion has a duct 51 and gangs up hole 52 and link.This of filter plate 5 simultaneously covers an elastic diaphragm 53.

As shown in Figure 7, charging aperture 54 is pressed in elastic diaphragm 53 in the recessed portion of filter plate 5, studs with sealing gasket 58 on the charging aperture 54, passes filter plate 5 on the charging aperture 54, barrier film 53 and sealing gasket 58 gang up hole 55 and perpendicular to the duct 56 of ganging up 55.

As shown in Figure 8, an end of the big leading screw 60 in the hold-down mechanism 1 is equipped with dish spring (or other elastic parts) 61 and packing ring 62, and an end of little leading screw 63 is equipped with dish spring (or other elastic parts) 64 and packing ring 65, and an end of little leading screw 63 is fixed on the movable pressing board 4.Hold-down mechanism 1 drives gear wheel 69 by motor 66 by reductor 67 and pinion 68.

The working condition of this automatic filter press of squeeze type is as described below.

Motor 66 in the hold-down mechanism 1 drives gear wheel 69 rotations through reductor 67 and pinion 68.When beginning to push filter plate 5, little leading screw 63 is contracted in the endoporus of big leading screw 60 and pushes down dish spring 64, and at this moment big leading screw 60 and little leading screw 63 are locked together does not follow gear wheel 69 and rotate the protruding filter plate 5 that pushes.When big leading screw 60 reached compact disc spring 61, big leading screw 60 was locked together with gear wheel 69 and follows gear wheel 69 rotations, and at this moment little leading screw 63 begins from 60 li protruding filter plates 5 that push of big leading screw, till compressing filter plate 5.After compressing filter plate 5, suspension is pressed into space between barrier film 53 and the filter cloth 32 from ganging up hole 55 through the duct on the charging aperture 54 56, and the liquid phase in the suspension sees through filter cloth 32 and flows into ducts 45 through groove 44, flows to outside the filter press through ganging up hole 46 again.The filter residue of holding back when filter cloth 32 stops to be pressed into suspension when reaching suitable thickness, press media (compressed air or other fluids) enters barrier film 53 and promotes barrier film 53 squeezing filter residues behind through ganging up hole 52 and duct 51.Stop the squeezing back and dry up filter residue from ganging up breast 55 feeding compressed air.Draw back filter plate 5 slag dumpings after stopping to dry up.Because big leading screw 60 is locked together with gear wheel 69, and therefore big leading screw 60 is followed gear wheel 69 counter-rotation, and little leading screw 63 hauls filter plate 5 earlier and is withdrawn into 60 li of big leading screws, is compressed up to dish spring 64, big leading screw 60 stops operating when beginning to draw back filter plate 5.After this big leading screw 60 is being with little leading screw 63 to haul filter plate 5 withdrawals together, till drawing back whole filter plates 5.After drawing back filter plate 5, do the parallel circle motion with motor 20 through driving-chain 22 and driving shaft 12 drive parallel rods 18, parallel rod 18 drives axis of traction 6 rotations through rollers 26 and

crank

24,32 walkings of axis of traction 6 usefulness traction belts 30 drive filter clothes.When filter cloth 32 was walked through the scraper plate 41 in the groove 7 that washes cloth, the filter residue that sticks to filter cloth 32 surfaces was wiped off.After filter cloth 32 running stroke finish, motor 20 counter-rotation, filter cloth 32 walking in the other direction turns back to former operating position.In the filter cloth 32 walking slag dumping processes, the nozzle 43 in the groove 7 that washes cloth is hydroblasting filter cloth 32 simultaneously, and cell body 40 and scraper plate 41 block the water that washes cloth that splashes, and the water that washes cloth only flows out from the water out 70 that washes cloth of cell body 40.Drive driven shaft 14 when driving shaft 12 rotates and rotate, driven shaft 14 drives sliding sleeves 34 and rotates, when sliding sleeve 34 rotates owing to be subjected to the effect of nut 36 to produce axial displacement simultaneously.When filter cloth 32 running stroke finished, the cam 38 of following sliding sleeve 34 motions touches travel switch 39 stopped motor 20.

The present invention allows the professional to improve in conspicuous place and changes, but according to the content that illustrated features of the present invention such as specification of the present invention, accompanying drawing and claims are extended, should be considered as feature of the present invention.

Claims

1, a kind of automatic filter press of squeeze type that is used for Separation of Solid and Liquid, it is by fixation clip, can come and go mobile movable pressing board, drive the telescopic spiral hold-down mechanism of movable pressing board, the girder of pressing plate and hold-down mechanism is connected and fixed, bunchiness filter plate between fixation clip and movable pressing board, spur the chain that draws back of the equidistant arrangement of bunchiness filter plate, clean the groove that washes cloth of filter cloth, the axis of traction of traction walking of filter cloth, the automatic filter press of squeeze type that the drive unit that driving axis of traction traction filter cloth goes and back running etc. constitutes, it is characterized in that driving the drive unit that axis of traction traction filter cloth goes and back running is to drive axis of traction with parallel rod to rotate, the groove that washes cloth that every filter plate is equipped with seals, block the water that washes cloth that splashes with cell body and scraper plate, the water that washes cloth can flow out from the water out that washes cloth of cell body, add boss in the middle of the filter plate, on the fixing charging aperture sealing gasket is arranged, gang up hole and opening, add the dish spring in the telescopic spiral hold-down mechanism.

2, automatic filter press of squeeze type according to claim 1 is characterized in that the shaft of the parallel rod in the drive unit that said driving axis of traction traction filter cloth goes and back running has elongated slot, and the eccentric shaft that is fixed on the axis of traction end is positioned in the elongated slot.

3, according to claim 1 and 2 described automatic filter press of squeeze type, it is characterized in that the cam in the drive unit that described driving axis of traction traction filter cloth goes and back running is fixed on the two ends of sliding sleeve, sliding sleeve is contained on the driven shaft, driven shaft drives the sliding sleeve rotation with feather key, and sliding sleeve is equipped with fixed nut outward.

4, automatic filter press of squeeze type according to claim 1 is characterized in that every filter plate is equipped with the groove that washes cloth of sealing, and the groove that washes cloth blocks the water that washes cloth that splashes with cell body and scraper plate, and the water that washes cloth only flows out from the water out that washes cloth of cell body.

5, automatic filter press of squeeze type according to claim 1, it is characterized in that the said charging aperture that is fixed on the filter plate is with seal face the elastic diaphragm that covers outside filter plate to be pressed in the recessed portion of filter plate, sealing gasket is equipped with at the back side of charging aperture, filter plate, barrier film, charging aperture and sealing are lined with gangs up the hole and passes, and charging aperture is having flow passage perpendicular to ganging up the hole direction.

6, automatic filter press of squeeze type according to claim 1 is characterized in that said filter plate covers barrier film centre simultaneously boss is arranged, and the correspondence position that covers the filter cloth one side also has boss, and the boss height is identical with filter plate sealing surface height all around.

7, automatic filter press of squeeze type according to claim 1 is characterized in that an end of the little leading screw in the said telescopic spiral hold-down mechanism is equipped with dish spring (or other elastic parts), and an end of big leading screw is equipped with dish spring (or other elastic parts).