CN100551484C

CN100551484C - Filter press

Info

Publication number: CN100551484C
Application number: CNB2007100046081A
Authority: CN
Inventors: 张竞
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-09
Filing date: 2007-01-09
Publication date: 2009-10-21
Anticipated expiration: 2027-01-09
Also published as: CN101219296A

Abstract

The present invention relates to a kind of pressure filtration machinery, is the improvement to filter press.The invention provides a kind of not only continuously automatically work, but also can improve filter pressure and be convenient to vehicle-mounted mobile filter press.The present invention has a cylinder (1), there is axle (24) at its center, there is flap (14) alternately to do clockwise on the axle and rotates counterclockwise equal angular with axle, left clapboard (9), right clapboard (7) can move up and down, filter cake after the filtration can move from dividing plate and vacate as the scallop hole, discharge cylinder (1), the filtrate process is multiple at flap filter screen (36) on the flap (14) and the dividing plate screen pack (37) on the dividing plate, collecting tank (35), discharge opeing left side pipe (8), the right pipe of discharge opeing (6) is discharged; Liquid to be filtered by pump (44) through charging left side valve (39), the right valve (40) of charging, the charging left side pipe right pipe of (11) charging (5), pressure limiting valve (38) enters filter chamber.The present invention can uninterruptedly carry out pressure filtration continuously automatically, and filter pressure is except that the pump pressure of original technology, and also dwindling chamber space because of flap (14) rotation has increased pressure, thereby remove and save the labour, reduce labor intensity, improve outside the automaticity, also improve filter efficiency and filter quality.

Description

Filter press

Technical field

The present invention relates to a kind of pressure filtration machinery, is the improvement to filter press

Background technology

Existing filter press has board-like and branch belt.Plate type pressure filter has one group of filter plate that has groove, accompanies filter cloth between filter plate, will organize superimposed filter plate with hydraulic mechanism and compress, every filter plate has the hole that is used to import mixed liquor to be filtered and discharges filtrate respectively, filtration finishes, and must unclamp filter plate, so that remove filter cake and clean filter cloth.Therefore, work is intermittence, discontinuous carrying out, and needs manually-operated, and labour intensity is big.Belt filter press filters the solidliquid mixture on the strainer by the pressure between strainer and roller or press belt.Though it is continuous filtering, because of the strainer both sides are open, so filter pressure can not be too high, in order to avoid material to be filtered extrudes from the strainer both sides, thereby can not obtain very dried filter cake, filter effect is undesirable.

Summary of the invention

Purpose of the present invention provides a kind of both continuous work automatically, can improve the filter press of filter pressure again greatly, in the hope of the raising rate of filtration, raising filter cake mass dryness fraction, transformation filter effect, and can save the labour, reduces labor intensity, and improves automaticity.

The present invention is achieved through the following technical solutions: this filter press, a garden tube is arranged, and there is axle at tube center, garden, and cover plate is arranged at tube top, garden, and the left and right threshold switch of material pump is housed on the cover plate; Have several fan grooves on garden tube bottom and the cover plate, several compositions are positioned at groove to left and right sides dividing plate, and the garden tube is divided into several five equilibriums; Being fixed on has flap, depression bar, briquetting on the axle, all rotate with axle, and the right side of the two sides of flap, the left side of left clapboard, right clapboard all is covered with filter screen, the filter chamber between flap and dividing plate, and it reduces gradually along knuckle section, thus the compression liquid to be filtered; It reverses to part and increases gradually.On axle, have and to rotate the suspension hook connecting ring that also can move up and down with axle, form left and right suspension hook by several on the ring along the vertical slot of axle; Left and right ring is arranged respectively at left and right dividing plate top, be equipped with respectively in the ring electrohydraulic stepping motor clockwise, reverse shutdown switch, this is clockwise, reverse shutdown switch, depresses when motor is stopped operating, and removes the pass on the primer fluid cylinder pressure, makes on the hydraulic cylinder and moves.Through left and right sides valve, the left and right pipe of charging, pressure limiting valve enter filter chamber to liquid to be filtered by pump.When filter chamber internal pressure and pressure valve spring power sum during greater than pump pressure, this road pressure limiting valve cuts out, and this filter chamber stops charging.Filtrate passing overlays on the filter screen on flap and the dividing plate, discharges through collecting tank, discharging tube.When flap forwards desired location to, control automatic stall by switch, also close the inlet valve that leads to clockwise filter chamber simultaneously, briquetting is pushed down reverse to dividing plate.At this moment, close action with removing on the hydraulic cylinder of clockwise shutdown switch interlock, move pulling flange, bar, suspension hook connecting ring on the hydraulic cylinder, suspension hook, ring, left clapboard rise, and the fan groove that filter cake stays after rising by dividing plate is discharged the garden tube.In the dividing plate uphill process, open the compressed air rinsing switch, compressed air from be positioned on the barrel of garden, under the cover plate, the position of rest of flap and the left side of the flushing between left clapboard pipe (reverse be to time the right pipe of flushing) be to filter chamber, filter screen flushing; After running into upper limit position switch, hydraulic cylinder moves on stopping, after the delay switch time-delay, the reverser closure, hydraulic cylinder moves down, dividing plate is pushed into original position, after running into lower position switch, hydraulic cylinder stops to move down, and gas is washed open to close and disconnected, the washing switch closure, washing can be set the several cycles flushing once according to actual condition.Axle reverses to switch activated, and inlet valve is opened.Previous clockwise to reverse to filter chamber become respectively reverse to, clockwise to filter chamber, so move in circles.

The present invention compared with prior art has following advantage: compare with existing plate type pressure filter, the change discontinuous operation is continuous operation, and in all operations automatically of debugging, setting back, reduces labor intensity greatly, and the saving labour improves work efficiency; Compare with belt filter press, filter pressure significantly improves, and the equipment volume of identical filter capacity can dwindle a lot, can accomplish vehicle-mounted moving, and increases adaptability, flexibility greatly, also improves filter cake mass dryness fraction and filter quality, the rate of filtration.

Description of drawings

Fig. 1 is the left view of the embodiment of the invention

Fig. 2 is the axial cutaway view of this embodiment

Fig. 3 is that this Embodiment C is to view

Fig. 4 is this embodiment transverse sectional view

Fig. 5 is a pressure limiting valve structural representation among this embodiment

Fig. 6 is the pinion and rack schematic diagram

Fig. 7 is electric control circuit figure

Fig. 8 is the vertical view of Fig. 6

The specific embodiment

The present invention is further described accompanying

drawing

1,2,3,4,5,7 below in conjunction with accompanying drawing:

The master switch 1HK that closes presses pump 44 switch P QA, and PC gets, 2D drives pump 44, liquid to be filtered is through charging left side valve 39, right valve 40, charging left side pipe 11, right pipe 5, left and right pressure limiting valve 38 enters left and right filter chamber: get electricly by start button QA, RQC, 1D starts, and drives electrohydraulic stepping motor 26 and clockwise rotates, through shaft coupling 27; Drive axle 24 and flap 14 rotates thereupon; The left filter chamber that garden tube 1, left clapboard 9, flap 14, cover plate 25 are surrounded dwindles gradually, and liquid to be filtered is compressed filtration, and filter cake is stayed left filter chamber, and cleaner liquid passes through dividing plate filter screen 37, flap filter screen 36, collecting tank 35, the right pipe 6 of discharge opeing, discharge opeing left side pipe 8 discharge garden buckets 1.When the pressure sum of filter chamber internal pressure and spring 42 during greater than the pressure of pump 44, pressure limiting valve 38 cuts out, and valve ball 43 is blocked the valve charging aperture, and left filter chamber stops charging.When to desired location, with depression bar 19 depress switch 18 that axle 24 rotates, control charging left side valve 39 cuts out; Simultaneously, briquetting 2 is pressed past right clapboard 7 tops, and the left suspension hook 13 on the suspension hook connecting ring 16 inserts left side ring 10, depress switch 21, and the 1TA action, the RQC dead electricity, change-over switch HK disconnection 3---5 points connect 3---4 points stop to clockwise rotate, and for rotating counterclockwise preparation; UQA closure with the ITA interlock, UC gets, 3D drives hydraulic cylinder 31 and moves up, and orchid 28, bar 29, suspension hook connecting ring 16, left suspension hook 13 are sent out in pulling, left side ring 10, move on the left clapboard 9, left side gas is washed open and is closed 34 unlatchings, the AQA closure, and AC gets, 4D work compressed air rinsing left side filter chamber is run into upper limit position switch 31UTA action UC dead electricity.

Hydraulic cylinder moves on stopping.After time-delay, with the DQA action of UTA interlock, DC gets electric, and the 3D backward rotation drives hydraulic cylinder and moves for 31 times, left clapboard is pushed away for 9 times, run into lower position switch 30, DTA disconnects, the DC dead electricity, and 3D stops, make hydraulic cylinder stop to move down, ATA disconnects simultaneously, the AC dead electricity, and 4D stops air pump work; With the QA action of DTA interlock, LQC gets electric, and ID rotates counterclockwise, and depression bar 19 breaks away from switch 18, and charging left side valve 39 is opened, and left filter chamber recovers charging.With aforementioned process roughly the same, right suspension hook 15 inserts right ring 3, depress switch 20, the ITA action, the LQC dead electricity, 1D stops backwards rotation; Simultaneously, change-over switch HK disconnects the 3-4 point, connects the 3-5 point, is forward rotational action preparation of ID; Depression bar 19 depress switch 17 are closed the right valve 40 of charging, and briquetting 2 is pushed down left clapboard 9 tops, UQA action 3D drives on the hydraulic cylinder 31 and moves, and drives on the right clapboard 7 and moves, and right gas is washed open and closed 33 unlatchings, so move in circles, axle 24 by take out hold 23 and bearing cap 22 be positioned in the middle of the garden tube 1.

Accompanying drawing 5 is structural representations of pressure limiting valve 38, and adjustable screw 41 is twisted and is combined on the pressure limiting valve 38, in order to the pressure of regulating spring 42, thereby regulate the filter chamber internal pressure, valve ball 43 enters the passage of pressure limiting valve in order to the open and close feed liquid, all has the feed liquid opening around the pressure limiting valve, makes feed liquid enter filter chamber.

Accompanying drawing 6, accompanying drawing 8 be of the present invention in addition---individual embodiment is to replace electrohydraulic stepping motor with pinion and rack, on the axle 24 that gear 47 usefulness keys 48 are fixed, it is reciprocating that hydraulic cylinder 45 drives tooth bar 46, does to rotate counterclockwise clockwise thereby make gear 47 drive axle 24.

Claims

1, a kind of filter press, a garden tube (1) is arranged, garden tube bottom and cover plate have several fan grooves on (25), several compositions are to left clapboard (9), right clapboard (7) is positioned at groove, there is the axle (24) that is driven by shaft coupling (27) by electrohydraulic stepping motor (26) at the center of garden tube (1), be positioned tube center, garden by bearing (23) and bearing cap (22), flap (14) is embedded in the groove of axle (24), the two sides of flap (14) is covered with filter screen (36), the left side of left clapboard (9), the right side of right clapboard (7) is covered with filter screen (37); Pump (44) with liquid to be filtered through charging left side valve (39), the right valve (40) of charging, charging left side pipe (11), the right pipe of charging (5), pressure limiting valve (38) enters filter chamber, cleaner liquid is by flap filter screen (36), dividing plate filter screen (37), collecting tank (35), discharge opeing left side pipe (8), the right pipe of discharge opeing (6), discharge garden tube (1).

2, filter press according to claim 1 is characterized in that on the groove of described axle (24) suspension hook connecting ring (16) being housed, and left suspension hook (13) is arranged, right suspension hook (15) on it; Material pump left side threshold switch (18) is housed on the described cover plate (25), right threshold switch (17), on the axle (24) depression bar (19), briquetting (2) are arranged, clockwise, reverse on the position of rest, depression bar (19) just is pressed in left threshold switch (18) respectively, on the right threshold switch (17), briquetting (2) is positioned at right clapboard (7), left clapboard (9) top.

3, filter press according to claim 1, it is characterized in that described left clapboard (9), left side ring (10) is arranged respectively at right clapboard (7) top, right ring (3), clockwise shutdown switch (21) is housed respectively in the ring, reverse shutdown switch (20), link to each other, move starting switch UQA on ITA and the hydraulic cylinder (31) and link to each other with the limit switch ITA of electrohydraulic stepping motor (26).

4, filter press according to claim 3 is characterized in that described hydraulic cylinder (31), and upper limit position switch (32) is housed, lower position switch (30).

5, filter press according to claim 1, described pressure limiting valve (38) all has the feed liquid opening around it, in spring (42) is arranged, valve ball (43), adjustable screw (41).

6, filter press according to claim 1 is characterized in that being positioned on described garden tube (1) wall, and under the cover plate (25), the position of rest of flap (14) and left clapboard (9) between right clapboard (7), have compressed air rinsing left side pipe (12), right pipe (4).

7, filter press according to claim 1 is characterized in that the available gear bar of described electrohydraulic stepping motor (26) shaft coupling (27) mechanism replaces, and uses key (48) with gear (47), axle (24) connects, with hydraulic cylinder (45), drive tooth bar (46) and make gear (47), axle (24) rotates.