CN100493664C - Crawler blotter press - Google Patents
Crawler blotter press Download PDFInfo
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- CN100493664C CN100493664C CNB2007100699800A CN200710069980A CN100493664C CN 100493664 C CN100493664 C CN 100493664C CN B2007100699800 A CNB2007100699800 A CN B2007100699800A CN 200710069980 A CN200710069980 A CN 200710069980A CN 100493664 C CN100493664 C CN 100493664C
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Abstract
The present invention discloses one kind of crawler type pressure filter for pressure filtering industrial effluent, paper pulp, domestic sludge, oil bearing sludge and other suspension or solid-liquid mixture. The crawler type pressure filter consists of one frame, one driving mechanism, one feeding mechanism, one squeezing area and one auxiliary device mainly. The squeezing area on the frame includes one squeezing roll, one pressurizing belt and one filtering belt. Structurally, the crawler type pressure filter features that the squeezing area includes also one crawler type tension belt winding outside the squeezing roll parallelly via superposing with the pressurizing belt and the filtering belt. The present invention is superior to available technology, can realize 3D shearing and squeezing dewatering of the filter cake, and possesses the advantages of high dewatering effect, long service life of the filtering belt, etc.
Description
Technical field
The present invention relates to a kind of belt filter press, particularly a kind of crawler blotter press that is exclusively used in various organic and inorganic microparticle suspension of industrial wastewater, paper pulp, domestic sludge, oily sludge or the like or solidliquid mixture Separation of Solid and Liquid.
Background technology
Water treatment plant, paper mill, food processing factory, chemical plant and plant etc. all will produce a large amount of materials that needs processed.These materials are through dehydration, after being concentrated again landfill can save a large amount of soils, reduce sewage permeation; Simultaneously, the many materials in these materials just can be directly used in comprehensive utilization when being concentrated to certain solid content, thereby save the oven dry energy.
Belt filter press is very ripe as the solid-liquid separating equipment in the processed of material to be drained off, and the structural design by changing belt filter press, to adopt the higher technical schemes such as dehydrating material of efficient to improve the innovation and creation of belt filter press performance quite a few.The inventor at Chinese patent 200610050778.9 " a kind of belt filter press " thus in disclose and a kind ofly provide high-tension to improve the technology of dehydration pressure by steel strip, its dehydration pressure is being obtained substantial progress up to 3.0Mpa aspect the raising filter cake solid content; A kind of method and apparatus of multistage unidirectional squeezing is disclosed in Chinese patent 200710068654.8 " a kind of solid-liquid separating method and equipment ", device structure and pressing method problem under the High Voltage squeezing condition have been solved, the solid content of dehydrated material can be brought up to more than 40%, reach the semi-solid preparation level.
The belt filter press of above-mentioned prior art has a common ground, that is exactly filter cake, filter screen or filter bag and adds pressure zone integral body and do hunting along pressure roller external diameter circular arc, filter cake produces shearing along direct of travel because of angular velocity difference, but is not then having enough shearings with the perpendicular direction of direct of travel; The pressure jump meeting of vertical direction simultaneously causes the interruption of service of filter cake, such as mud retreat, mud is leaked at two ends or the like, so the common design principle of existing equipment is, guarantee mild supercharging gradually so that guarantee that the filter cake operation is smooth and easy, realize that by angular velocity difference filter cake is sheared longitudinally, realize press dewatering.There is following limitation in this structure: 1, filter cake is when moving around some pressure roller, filter cake only is subjected in the circular arc hunting process because of turning round the longitudinal shear that interior external diameter difference causes, there is not the shearing of horizontal and vertical direction, and filter cake inner suffered be balanced pressure and balanced longitudinal shear power, there is not local force difference, under high solids content filter cake condition, just can not produce to squeeze fully and move, be unfavorable for dehydration, and cause the obstruction of filter screen easily.2, on the thickness direction of filter cake, the position at filter cake internal particle place is geostationary, filter cake particle such as the layer that mediates mediates always, have no chance to move near the filter screen, its adsorbed liquid just can be removed after must depended on pressure overcoming the resistance of the filter cake of its position between filter screen, this need consume bigger power and more time, just needs to strengthen pressure and reduces the speed of a motor vehicle.3, under the high-tension condition, such as 100 kilograms per centimeter, significantly the longitudinal shear meeting causes the wearing and tearing of filter bag to be quickened, when the filter cake solid content is high, surpass 25% such as paper-making deinking mud solid content, the wearing and tearing of filter bag are more serious, and life-span even have only 15-30 days is so traditional belt filter press is not suitable for moving under high-tension, high filter cake solid content condition.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defective that prior art exists, and provides a kind of pressed zone to adopt the crawler type tension band, can make filter cake realize the three-dimensional press dewatering of shearing, and press filtration is effective, the crawler blotter press of filter bag long service life.
The present invention addresses the above problem the technical scheme that is adopted: this crawler blotter press, mainly by frame, drive unit, feed arrangement, pressed zone and servicing unit are formed, pressed zone comprises pressure roller, add pressure zone and filter bag, pressed zone is contained on the frame, drive unit is connected with pressure roller, adding pressure zone and filter bag surrounds outside the pressure roller, feed arrangement is facing to filter bag, servicing unit is positioned at the relevant position of filter bag, its design feature is: described pressed zone also comprises the crawler type tension band, the crawler type tension band, add parallel overlapping the surrounding outside the pressure roller of pressure zone with filter bag.The crawler type tension band can make filter cake be subjected to simultaneously with filter cake operation parallel direction promptly vertically, with the filter cake traffic direction laterally vertical promptly laterally and the filter cake thickness direction be vertical shearing force to three directions, make filter cake in expressing process, be subjected to omnibearingly fully squeezing movingly, help the filter cake press dewatering, keep the filter bag cleaning, reduce the filter bag damage, prolong filter bag service life.
The described crawler type tension band of crawler blotter press of the present invention is with two, be laminated on respectively wrap filter cake add above the pressure zone and filter bag below.
The described crawler type tension band of crawler blotter press of the present invention is with one, is laminated on to add above the pressure zone.
The described crawler type tension band of crawler blotter press of the present invention is laminated on below the filter bag with one.
The described crawler type tension band of crawler blotter press of the present invention is made by pivot pin and briquetting cross-under, and the long 1-1000 millimeter of briquetting, wide 1-200 millimeter, thickness is at the 1-20 millimeter, compact materials adopt metal or nonmetal or on metal compound soft rubber liner.
The described briquetting of crawler blotter press of the present invention adopts figure of eight briquetting, and the width of briquetting is the 5-100 millimeter.The briquetting width has material impact to the tensile strength of crawler belt, and the 5-100 millimeter is the optimum width scope of briquetting.
Separate with pad between the figure of eight briquetting of the described crawler type tension band of crawler blotter press of the present invention, briquetting and pad are contacted by pivot pin.
Separate with a slice figure of eight briquetting is staggered between two figure of eight briquettings of the described crawler type tension band of crawler blotter press of the present invention, briquetting is contacted by pivot pin.
Separate with two figure of eight briquettings are staggered between two figure of eight briquettings of the described crawler type tension band of crawler blotter press of the present invention, briquetting is contacted by pivot pin.
The present invention compared with prior art has the following advantages: 1, press dewatering efficient height.During the crawler blotter press running, the crawler type tension band is along in pressure roller surface operation and the pressure process, can make filter cake be subjected to thickness direction promptly vertically to shearing force, filter cake operation parallel direction promptly vertical and move the shear action that horizontal vertical direction is horizontal three directions with filter cake.Filter cake is subjected in expressing process vertically, laterally with vertical to three-dimensional shearing force, can make filter cake in the press dewatering process, obtain omnibearing abundant extruding, overcome prior art and only be subjected to vertical unidirectional shearing, there is not local force difference, filter cake can not produce and squeeze moving defective fully during press dewatering, and the press dewatering effect is better.Simultaneously, the crawler type tension band can provide enough tension force to compress filter bag or filter screen, and its tension range can reach the 0-3000 kilograms per centimeter, and squeezing pressure range accordingly is the 0-100 kilograms per centimeter
2, very favourable for High Voltage, high solids content cake dewatering, improved the dewatering efficiency of belt filter press effectively.2, filter bag long service life.Filter cake is subjected to three-dimensional shearing force in expressing process, can better keep filter bag cleaning, prolongs filter bag service time.Filter cake be subjected to vertically to lateral shear be a kind of intensity height and the little shearing force of amplitude, since vertically to the existence of lateral shear, can reduce the requirement of longitudinal shear, just reduce the tension force requirement of filter bag, thereby reduced damage, greatly prolonged the service life of filter bag filter bag.The filter bag Acceptable life that experimental results show that crawler blotter press can reach 3 months.
Description of drawings
Fig. 1 for the crawler type tension band of the embodiment of the invention, add the parallel overlapping outer structural representation of pressure roller that surrounds of pressure zone with filter bag.
Fig. 2 is an embodiment of the invention figure of eight briquetting schematic diagram.
Fig. 3 is embodiment of the invention crawler type tension band structural representation Fig. 1, the band broken section.
Fig. 4 is embodiment of the invention crawler type tension band structural representation Fig. 2, the band broken section.
Fig. 5 is embodiment of the invention crawler type tension band structural representation Fig. 3, the band broken section.
Fig. 6 is subjected to the three-dimensional squeezing back shape schematic diagram of shearing for using crawler blotter press filter cake of the present invention.
The specific embodiment
The embodiment crawler blotter press mainly is made up of frame, drive unit, feed arrangement, pressed zone and servicing unit.Pressed zone comprises the press filtration roller, adds pressure zone, filter bag and crawler type tension band; Drive unit comprises motor, gearbox; Servicing unit comprises idler roller, doctor blade device, water container, deviation correcting device and filter bag cleaning device.Pressed zone is contained on the frame, drive unit is connected with the press filtration roller, the crawler type tension band, add parallel overlapping the surrounding outside the pressure roller of pressure zone with filter bag, feed arrangement is facing to adding between pressure zone and the filter bag, add pressure zone and filter bag wraps filter cake, the pressure zone that adds of pressed zone is equipped with doctor blade device with the filter bag place of separation, and the filter bag cleaning device is installed facing to filter bag, and water container is contained in below the filter bag.
The crawler type tension band of embodiment can be with two, also can be with one.The installation of using two crawler type tension bands is referring to Fig. 1, following crawler type tension band 2 and 6 two crawler type tension bands of last crawler type tension band be laminated on respectively wrap filter cake 4 on add above the pressure zone 5 and below the filter bag 3, last crawler type tension band 6, on add parallel as shown in the figure overlapping the surrounding outside the pressure roller 1 of pressure zone 5, filter bag 3 and following crawler type tension band 6.The crawler type tension band is pressed in and adds above the pressure zone, and the effect that adds pressure zone is to intercept filter cake and crawler type tension band, guarantees that crawler type tension force has good running environment on the one hand, plays cushioning effect on the other hand, makes pressure distribution even; The crawler type tension band is pressed in below the filter bag, and the effect that adds pressure zone is to prevent the filter cake suction, and filter cake with the filter bag clamping and do serpentine locomotion, and filtrate is flowed out by the gap on the crawler type tension band.In actual applications, in order to prolong filter bag service life, generally only use a crawler type tension band, for non-corrosive filtrate, preferred plan is to use the crawler type tension band with convenient dehydration in the filter cake bottom, and the crawler type tension band is laminated on and uses below the filter bag; When the crawler type tension band used under the conduct, the briquetting gap on the crawler type tension band provided enough passages, and filtrate can be flowed out smoothly.For corrosivity filtrate, preferred plan is to use the crawler type tension band to avoid corrosion with protection crawler type tension band on filter cake top, and the crawler type tension band is laminated on to add above the pressure zone and uses.
Embodiment crawler type tension band is made by pivot pin 7 and briquetting cross-under, and briquetting can adopt the briquetting that has at least 2 perforation of ellipse or rectangle or the figure of eight or other shape.Referring to Fig. 2, briquetting adopts figure of eight briquetting 8, and figure of eight briquetting 8 long L are that 1-1000 millimeter, wide W are that 1-200 millimeter, thickness H are at the 1-20 millimeter.After pivot pin 7 materials and diameter were determined, the width of briquetting had material impact to the tensile strength of crawler type tension band, and width is narrow more, and pivot pin 7 shearing point are just many more, and the section of shear is just big more, thereby the tension force of crawler type tension band is also just big more, and vice versa.Test shows that the optimum width scope of briquetting is the 5-100 millimeter.Compact materials adopts metal or nonmetal, perhaps adopts compound soft rubber liner on the metal.
The length of crawler type tension band is determined according to crawler blotter press different instructions for use and filter press size with width.The cross-under mode of the briquetting of crawler type tension band and pivot pin 7 is many, and embodiment adopts following three kinds of cross-under modes:
When crawler blotter press used, the crawler type tension band mainly contained following effect:
1, the crawler type tension band is in surperficial pressurization and running along pressure roller, briquetting as a section along the continuous conversion of pressure roller arc-shaped surface point of contact, the variation of stress point makes filter cake be subjected to the shearing force of thickness direction, and constantly change shape, thereby realize filter cake along thickness direction, just vertical direction squeeze movingly up and down, help the filter cake press dewatering.
2, thereby the gap can make the continuous distortion of filter cake be subjected to promptly vertically and with filter cake moving the shear action that horizontal vertical direction is horizontal both direction with filter cake operation parallel direction around the briquetting on the crawler type tension band.The deflection of filter cake depends on the fluting shape on briquetting gap and the briquetting, and the detrusion amount is generally between the 1-10 millimeter.Filter cake in expressing process, be subjected to the intensity height and amplitude little vertically to and cross shear, since vertically to the existence of lateral shear, can reduce the requirement of longitudinal shear, just reduce the tension force requirement of filter bag, reduce the damage of filter bag, can guarantee to squeeze effect again.
3, the crawler type tension band can provide enough tension force to compress filter bag or filter screen.The tension range of crawler type tension band can reach the 0-3000 kilograms per centimeter, and this is crucial for High Voltage, high solids content cake dewatering.
And different, under identical crawler type tension band tension force, the big more pressure of pressure roller diameter is more little according to the pressure roller diameter for squeezing pressure, and the more little pressure of diameter is big more, and pressure range is the 0-100 kilograms per centimeter
2, the best scope of application is the 0.5-30 kilograms per centimeter
2, corresponding tension force optimum range is: crawler type tension band tension range is the 0-1000 kilograms per centimeter, and pressurization belt tension scope is the 0-100 kilograms per centimeter, and the filter bag tension range is the 0-100 kilograms per centimeter.
When using crawler blotter press press dewatering of the present invention, because the effect of crawler type tension band, filter cake is subjected to the three-dimensional squeezing back shape of shearing to see Fig. 6.
Frame of the present invention, drive unit, feed arrangement and servicing unit all adopt industry technique known and device.
Claims (9)
1, a kind of crawler blotter press, mainly by frame, drive unit, feed arrangement, pressed zone and servicing unit are formed, pressed zone comprises pressure roller, add pressure zone and filter bag, pressed zone is contained on the frame, drive unit is connected with pressure roller, adding pressure zone and filter bag surrounds outside the pressure roller, feed arrangement is facing to filter bag, servicing unit is positioned at the relevant position of filter bag, it is characterized in that: described pressed zone also comprises the crawler type tension band, the crawler type tension band, add parallel overlapping the surrounding outside the pressure roller of pressure zone with filter bag, described crawler type tension band is made by pivot pin and briquetting cross-under, the long 1-1000 millimeter of briquetting, wide 1-200 millimeter, thickness is at the 1-20 millimeter, and described briquetting adopts figure of eight briquetting.
2, crawler blotter press according to claim 1 is characterized in that: described crawler type tension band is with two, be laminated on respectively wrap filter cake add above the pressure zone and filter bag below.
3, crawler blotter press according to claim 1 is characterized in that: described crawler type tension band is with one, is laminated on to add above the pressure zone.
4, crawler blotter press according to claim 1 is characterized in that: described crawler type tension band is laminated on below the filter bag with one.
5, according to claim 1 or 2 or 3 or 4 described crawler blotter press, it is characterized in that: described figure of eight compact materials adopt metal or nonmetal or on metal compound soft rubber liner.
6, crawler blotter press according to claim 5 is characterized in that: the width of described figure of eight briquetting is the 5-100 millimeter.
7, crawler blotter press according to claim 6 is characterized in that: separate with pad between the figure of eight briquetting of described crawler type tension band, briquetting and pad are contacted by pivot pin.
8, crawler blotter press according to claim 6 is characterized in that: separate with a slice figure of eight briquetting is staggered between two figure of eight briquettings of described crawler type tension band, briquetting is contacted by pivot pin.
9, crawler blotter press according to claim 6 is characterized in that: separate with two figure of eight briquettings are staggered between two figure of eight briquettings of described crawler type tension band, briquetting is contacted by pivot pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100699800A CN100493664C (en) | 2007-07-10 | 2007-07-10 | Crawler blotter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100699800A CN100493664C (en) | 2007-07-10 | 2007-07-10 | Crawler blotter press |
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| Publication Number | Publication Date |
|---|---|
| CN101081340A CN101081340A (en) | 2007-12-05 |
| CN100493664C true CN100493664C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100699800A Active CN100493664C (en) | 2007-07-10 | 2007-07-10 | Crawler blotter press |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376073B (en) * | 2008-10-09 | 2010-06-09 | 华章电气（桐乡）有限公司 | Lining band type filter press with press rolls for fixing mud |
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| CN101081340A (en) | 2007-12-05 |
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Owner name: ZHEJIANG HUAZHANG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HUAZHANG ELECTRIC (TONGXIANG) CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 314500 Zhenhua Road, second industrial zone, Tongxiang Economic Development Zone, Zhejiang, Tongxiang 1068, China Patentee after: Zhejiang Huazhang Technology Co., Ltd. Address before: 314500 Zhenhua Road, second industrial zone, Tongxiang Economic Development Zone, Zhejiang, Tongxiang 1068, China Patentee before: Huazhang Electric (Tongxiang) Co., Ltd. |
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Denomination of invention: Crawler blotter press Effective date of registration: 20180802 Granted publication date: 20090603 Pledgee: Bank of Hangzhou Limited by Share Ltd Tongxiang branch Pledgor: Zhejiang Huazhang Technology Co., Ltd. Registration number: 2018330000216 |