CN1199705C - Rotary type compressive filtrating machine - Google Patents
Rotary type compressive filtrating machine Download PDFInfo
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- CN1199705C CN1199705C CNB008141754A CN00814175A CN1199705C CN 1199705 C CN1199705 C CN 1199705C CN B008141754 A CNB008141754 A CN B008141754A CN 00814175 A CN00814175 A CN 00814175A CN 1199705 C CN1199705 C CN 1199705C
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- stoste
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- 230000006835 compression Effects 0.000 claims description 56
- 238000007906 compression Methods 0.000 claims description 56
- 239000007787 solid Substances 0.000 claims description 41
- 239000012065 filter cake Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 24
- 239000011550 stock solution Substances 0.000 abstract 4
- 230000018044 dehydration Effects 0.000 description 25
- 238000006297 dehydration reaction Methods 0.000 description 25
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 238000000926 separation method Methods 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/644—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure plates, membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/18—Filters characterised by the openings or pores
- B01D2201/184—Special form, dimension of the openings, pores of the filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
- B01D29/055—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported ring shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
- B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
A rotary type compressive filtrating machine (1) capable of increasing a dewatering efficiency of a dewatering cake to be discharged, wherein unprocessed stock solution is led continuously into a filtration chamber (10) formed in a rectangular cross-section and extending annularly to rotatingly move a permeable donut-shaped screen (5) continuously in the end direction of the filtration chamber (10) in order to move, while compressing, the stock solution successively in the end direction by a friction between the unprocessed stock solution and the screen (5) in the filtration chamber (10), and a pressurizing plate (13) is provided in the filtration chamber (10) so that the cross-sectional area of the filtration chamber (10) is reduced gradually toward the moving direction of the unprocessed stock solution.
Description
[technical field]
The compression filter that the present invention relates to filter the raw material or the moisture thing such as half finished product or mud (processing stoste) of compression processed food and carry out processed, particularly advancing in the filter chamber along with the ring-type that forms around rotating shaft increases the rotary compression filter that pressure carries out processed gradually to handling stoste.
[background technology]
In the device of separating solids and liquid, various types of devices such as centrifugal separator, filter centrifugal, filter-press, pressafiner, rotary vacuum filter, rotary compression filter are arranged.Among them, for rotary compression filter, for example No. the 404223rd, Canadian patent application (applying date: June 1 nineteen eighty-two) put down in writing in the communique with Fig. 7 and structure shown in Figure 8 by as everyone knows.
Fig. 7 is the fragmentary perspective cross sectional view of the structure of the original representational rotary compression filter 101 of expression.Fig. 8 is the AA line profile of the rotary compression filter 101 of Fig. 7.As indicated in these figure, formations such as the back pressure apparatus that this rotary compression filter 101 is not shown by the screen pack 105,105 of rotating shaft 102, interior snare 103,104,2 annular solid shapes of outer snare, dividing plate 106 and figure basically, external shell, drive unit.
Say that in more detail rotating shaft 102 roughly keeps level, and supply with driving force, with the direction rotation of low speed (0.2～1.3 turn left the right side/minute) to arrow B shown in Figure 7 by the drive unit that do not show of figure.Interior snare 103 is fixed on around the rotating shaft 102, along with rotating shaft 102 to equidirectional rotation.
The outside of snare 103 in outer snare 104 is configured in, the external shell that is not shown by figure keeps, constitute by circle shape part and straight line portion, above-mentioned round shape part begins extending about about 240 °～300 ° continuously on the concentric circles of rotating shaft 102 from base end part 104a, and above-mentioned straight line portion extends to terminal part 104b to this concentrically ringed tangential direction.In addition, outside in the round shape part of snare 104, it is relative and keep certain interval usually that inner circumferential surface 104c is configured to outer peripheral face 103a with interior snare 103, rotating shaft 102 axially on the gauge W1 of outer snare 104 consistent with the gauge W2 of interior snare 103.
2 screen packs 105,105 the 105a of inner peripheral portion, 105a are separately fixed on the two sides of interior snare 103, the 105b of outer peripheral edges portion, the position of 105b and dimensional configurations become to contact with the two sides of outer snare 104, thereby, when rotating shaft 102 rotations, screen pack 105,105 with interior snare 103 equidirectional rotations, at this moment, the 105b of its outer peripheral edges portion, 105b slide on the two sides of snare 104 outside.
In addition, it is many apertures about 0.18mm that each screen pack 105,105 has diameter, is used for guaranteeing water penetration, as described later, plays the effect of removing the filter of moisture from handle stoste.
The interval that keeps regulation between the end (outboard end 106b) opposite of dividing plate 106 and the base end part 104a of outer snare 104 and the terminal part 104b respectively with medial end 106a.And, outboard end 106b and outside the space of guaranteeing between the base end part 104a of snare 104 be used to supply with the processing stoste of gatherer inside as stoste supply port 108, outboard end 106b and outside the space of guaranteeing between the terminal part 104b of snare 104 as filtered solid outlet 109.
The bottom surface 106c of dividing plate 106 is consistent with the tangential direction of the outer peripheral face 103a of interior snare 103, and the while, the top 104d with the straight line portion of outer snare 104 extended abreast.The liquid outlet that this rotary compression filter 101 does not show except stoste supply port 108, filtered solid outlet 109 and figure and, also form airtight structure with external shell.
In addition, in the side of filtered solid outlet 109 back pressure apparatus with movable valve shown in Figure 12 107 is set.The movable valve 107 of this back pressure apparatus is formed by flexual material, the end 107a deflection of filtered solid outlet 109 sides is to contacting with the inwall of the external shell 113 of opposition side, to with the full-shut position shown in the figure (2), can freely adjust the aperture area of filtered solid outlet 109 from the full-gear shown in Figure 12 (1).
At this, the method for operation of above-mentioned such original rotary compression filter 101 of constructing and its operating principle are carried out simple explanation with Fig. 9 (profile of the CC line of the rotary compression filter 101 of Fig. 7) and Figure 12.At first, when the running beginning, such shown in Figure 12 (2), the movable valve 107 of back pressure apparatus is in full-shut position, from stoste supply port 108 shown in Figure 9 to the 110[of filter chamber be interior snare 103, dividing plate 106 and outside the section that forms between the snare 104 be the space of rectangle (with reference to Fig. 8), have the extension (annulus) of ring-type (c word shape) and the extension of linearity (directly shape part).Be through the space of annulus and straight shape part from stoste supply port 108 to filtered solid outlet 109] in order import processing stoste.At this moment because the movable valve 107 of back pressure apparatus is in full-shut position, and the processing stoste that is imported into is not discharged to the outside from filtered solid outlet 109, stayed in the filter chamber 110 and store up.
In the part of whole and straight shape part in filter chamber 110, annulus, two sides are by 2 screen pack 105,105 obturations staggered relatively, (below, the part by the inaccessible sides of these screen packs in the filter chamber 110 is called " filtration wet end ".) screen pack 105 is owing to there are many apertures that are used to guarantee above-mentioned water penetration, so store up in the process of staying in the filter chamber 110 in processing stoste, the moisture in the processing stoste passes the aperture of screen pack 105, is discharged to gradually outside the filter chamber 110.So, the concentration of handling the solid constituent of stoste increases, and becomes muddy, and its part is attached to filtering on the wire side.Be discharged to the outer moisture in filter chamber 110 and wander between the inwall and screen pack 105 of housing externally, be discharged to the device outside by liquid outlet.
Under this state, the drive unit that driving figure does not show is supplied with rotating shaft 102 to driving force, makes direction low speed (0.2～1.3 rev/min) rotation of rotating shaft 102 to arrow B shown in Figure 9.So, be fixed on the interior snare 103 around the rotating shaft 102 and be fixed in screen pack 105 equidirectional rotations on the two sides of snare 103.
When screen pack 105 rotations, import the processing stoste in the filter chamber 110, by and the screen pack 105 of rotation or slimy processing stoste attached thereto between the frictional force that produces, filter chamber 110 in, advance in proper order to filtered solid outlet 109 from stoste supply port 108.Like this, when slimy processing stoste is advanced in filter chamber 110, dewater in its process, slimy processing stoste becomes filter cake shape (dewatered cake) gradually again.So, and the frictional force between the screen pack 105 becomes bigger, by this frictional force that has increased dewatered cake is further forwards carried, but owing to be subjected to the obstruction of dewatered cake in advance, can not with screen pack 105 constant speed be transferred, and compression dewatered cake in advance, therefore, the dewatered cake of going ahead of the rest is further dewatered.
Like this, import the processing stoste of filter chamber 110, dewatering along with closely advancing near filtered solid outlet 109, dewatered cake is trapped near the filtered solid outlet 109 in the filter chamber 110.And,,, when the movable threshold 107 of back pressure apparatus is opened, be trapped near filtered solid outlet 109 initial dewatered cake and released through after the stipulated time from entry into service by follow-up dewatered cake, be discharged to the outside from filtered solid outlet 109.And in case initial dewatered cake is discharged from, the entry into service that just is through with runs well.
In normal operation, the movable valve 107 of back pressure apparatus shown in Figure 12 is in open mode, equally during with entry into service import in proper order in the filter chamber 110 handling stostes by stoste supply port 108, and rotate through filter screen 105 with the speed of regulation, filter continuously thus and processed stoste and by filtered solid outlet 109 discharge dewatered cake.In such normal operation, for the filtering means dehydration effect till the discharge that imports to dewatered cake of handling stoste, basically there is not any difference during with above-mentioned entry into service, handle the aperture of the movable valve 107 of the rotary speed of quantity delivered, screen pack 105 of stoste and back pressure apparatus by suitable adjustment, can discharge the dewatered cake of desired dehydration degree.
As mentioned above, this rotary compression filter 101, snare 103 and screen pack 105 rotations in only making with low speed can be separated into liquid (moisture) and solid (dewatered cake) handling stoste, therefore preferably, energy consumption and noise are little, in addition since carry out with external shell airtight, so advantage is manageable aspect the health when food processing, when handling dirt, advantage is and can be suppressed at bottom line to the generation of foul smell.
But this rotary compression filter 101 has following problem.Promptly, though dewatered cake 111 is discharged to the outside from filtered solid outlet 109 under state shown in Figure 10, but among them, the filter cake that relatively leans on the upper/lower positions discharge of snare 104 (for example outside close, the dewatered cake at the position of representing with L among this figure) than near near the filter cake of relatively discharging the dividing plate 106 (for example, the dewatered cake of the part of representing with H in the drawings) dehydration degree low (being the moisture content height) by last position.
Such problem is that this rotary compression filter 101 is distinctive, its reason the chances are following like that, at first, for example as shown in Figure 11, because screen pack 105 is to the direction rotation of arrow B, so the frictional force of dewatered cake and screen pack 105 acts on the direction of rotation of screen pack 105, arrow F promptly shown in Figure 11 is (on the direction of F～F5).Among them, near under the rotating shaft 102, the action direction F1 of frictional force and F2 are consistent with the direct of travel D4 of dewatered cake, but, when from F1, when the position of F2 advanced to filtered solid outlet 109, frictional force was along the direction of F3～F5, promptly act on to the bottom surface of dividing plate 106 106c.
Owing to such reason, be positioned at the dewatered cake of F1, because of advancing to the F3 direction with screen pack 105 frictional force, on the position of F3 since frictional force towards the bottom surface 106c effect of dividing plate 106, the dewatered cake of coming in from the F1 position row is forced into the bottom surface 106c of dividing plate 106, advances to the position of P1 simultaneously along bottom surface 106c.The dewatered cake that is positioned at F1 is during 106 bottom surface 106c arrives the P1 position from the F1 position along dividing plate, the dewatered cake that is positioned at the F1 outside (outer snare 104 sides) is constantly mobile towards the bottom surface 106c of dividing plate 106 by the frictional force along F3 and F4 directive effect, cause the conflict of power, thereby near the 106c of the bottom surface of dividing plate 106, particularly near P1, dewatered cake is except being compressed by high pressure, on one side the mutual on one side change relative position of the particulate of dewatered cake compresses in addition.
On the other hand, be positioned at the dewatered cake of F2, be accompanied by with the frictional force of screen pack 105 and advance to the direction of F5, by of the direction pushing of follow-up dewatered cake to P2, position at F5, because frictional force is towards the 106c effect of the bottom surface of dividing plate 106, so the dewatered cake that is positioned at F2 is during advancing to the P2 position, its part flows to dividing plate 106 sides, thereby, be positioned at the low of the density of dewatered cake of P2 and dewatered cake that pressure ratio is positioned at P1, in addition, because near the conflict of the power that produces dividing plate 106 does not produce near P2, so the atomic relative position of dewatered cake does not change.
Because such effect, the dewatered cake in the filter chamber 110 is also dewatered by powerful compression at the position near dividing plate, and on the contrary, at the position near outer snare 104, by powerful compression the like that, dehydration degree is not discharged to the outside than the lowland from filtered solid outlet 109.
In addition, in original rotary compression filter 101 shown in Figure 7, movable valve 107 by the back pressure apparatus in rotating speed, stoste quantity delivered and the filtered solid outlet 109 of control rotating shaft 102 turns round, even under the certain situation of the rotating speed of rotating shaft 102 and stoste quantity delivered, also can come the dehydration degree in the dewatered cake of discharging is carried out in a way control by the back pressure of adjusting back pressure apparatus.
But, when improving back pressure in order to obtain higher dehydration degree, the filtration path 112 of Fig. 9 is (in filter chamber 110, be to filter wet end part in addition, be space from the terminal of filtering wet end to filtered solid outlet 109) in pressure increase, it is big that the inwall of filter cake path 112 and the friction between the dewatered cake become, so the mobile quilt of dewatered cake hinders, when producing obstruction, because pressure inside is damaged device sometimes.
[summary of the invention]
The objective of the invention is to, by original rotary compression filter is improved a little, provide a kind of average dehydration degree, that can improve dewatering efficiency, the rotary compression filter that can discharge dewatered cake smoothly of that can address the above problem, the dewatered cake that can improve discharge by leaps and bounds.
Rotary compression filter of the present invention has: section is the filter chamber of rectangle; Interior snare is fixed on rotating shaft week, along with rotating shaft is rotated; Outer snare, be configured in above-mentioned in the outside of snare; Two screen packs, form by material with water penetration, be fixed on respectively with its inner peripheral portion on the two sides of above-mentioned interior snare, simultaneously the two sides of its outer peripheral edges portion and the above-mentioned outer snare position and the size of joining is being configured, above-mentioned filter chamber is by the outer peripheral face of snare in above-mentioned, the inner peripheral surface of above-mentioned outer snare, each medial surface of above-mentioned screen pack constitutes, have the part of the ring-type of extending on C word shape ground and the straight shape part that linearity ground extends, in above-mentioned filter chamber, import continuously and handle stoste, make above-mentioned rotating shaft rotation, each medial surface of above-mentioned screen pack is moved to the terminal direction rotation of this filter chamber continuously, in this filter chamber, above-mentioned processing stoste is moved to the terminal direction thus by friction with each medial surface of above-mentioned screen pack, simultaneously this processing stoste is compressed, at this moment remove moisture from handling stoste, remaining dewatered cake is discharged to the outside by the filter cake path from filtered solid outlet, it is characterized in that, by the interior snare side in above-mentioned filter chamber pressing mechanism is set, the basal area of above-mentioned filter chamber reduces gradually along the moving direction of handling stoste or dewatered cake, be positioned at the processing stoste of snare side or dewatered cake along with expert in the filter chamber and then leave gradually, move to outer snare side from snare.
Because such formation, can be on the direction vertical with the moving direction of dewatered cake, the compression dewatered cake, its result can improve the average dehydration degree of the dewatered cake of discharge.
If use many apertures of at least 2 kinds of different-diameters and the screen pack that the little aperture of diameter is configured in the outside of the big aperture of diameter are arranged, and the position that the pressure in the filter chamber uprises, pressing mechanism is the big aperture of inaccessible diameter from the inboard, just can improve the dewatering efficiency of all devices.
In addition,, increased pressure board is set in the filter chamber,, just can sets the position of the increased pressure board that is suitable for running well, in addition, can prevent that also the dewatered cake in the filter cake path from stopping up if make can the above-below direction displacement for this increased pressure board as above-mentioned pressing mechanism.
[description of drawings]
Fig. 1 is the profile of essential structure of the 1st embodiment of expression rotary compression filter 1 of the present invention.
Fig. 2 is the profile of essential structure of the 3rd embodiment of expression rotary compression filter 1 of the present invention.
Fig. 3 is the profile of essential structure of the 4th embodiment of expression rotary compression filter 1 of the present invention.
Fig. 4 is the front view of the screen pack 5 of use in the rotary compression filter 1 of the 3rd figure.
Fig. 5 is the profile of essential structure of the 5th embodiment of expression rotary compression filter 1 of the present invention.
Fig. 6 is local excision's stereogram of the essential structure of the original representational rotary compression filter 101 of expression.
Fig. 7 is the AA line profile of the rotary compression filter 101 of Fig. 6.
Fig. 8 is the CC line profile of the rotary compression filter 101 of Fig. 6.
Fig. 9 is near the amplification profile the filtered solid outlet 109 of rotary compression filter 101 of Fig. 6.
Figure 10 is used for the profile of effect of rotary compression filter 101 of key diagram 6.
Figure 11 is arranged near the key diagram of the movable valve 107 of the back pressure apparatus the filtered solid outlet 109 of rotary compression filter 101 of Fig. 6.
[specific embodiment]
Use the description of drawings embodiments of the invention below.Fig. 1 is the profile of structure of the 1st embodiment of expression rotary compression filter 1 of the present invention.This rotary compression filter 1 is with existing the same, basically constitute by the screen pack 5 of rotating shaft 2, interior snare 3, outer snare 4, two ring-types, dividing plate 6 and not shown shell and drive unit etc., filter chamber 10 (in being formed in snare 3 and dividing plate 6 and outside section between the snare 4 be the space of rectangle, be to have the extension (annulus) of ring-type (C word shape) and the extension of linearity (straight shape part).From stoste supply port 8 through annulus and straight shape part in the space of filtered solid outlet 9) imports processing stoste continuously by stoste supply port 8, by rotate the screen pack 5 of one of mobile wall that constitutes filter chamber 10 continuously to the terminal direction of filter chamber 10, in filter chamber 10, make and handle the stoste order and move and compress to the direction of arrow D by friction with screen pack 5, at this moment, remove moisture by the screen pack 5 that is formed by the material with water penetration from handle stoste, the filter cake of remaining dehydration is discharged to the outside from filtered solid outlet 9.
And, as indicated in Fig. 1, in this rotary compression filter 1,, in filter chamber 10, be provided with increased pressure board 13 as pressing mechanism, the basal area of filter chamber 10 is reduced gradually along the moving direction of handling stoste or dewatered cake.Therefore, when handling stoste or dewatered cake and advance in filter chamber 10, the basal area of filter chamber 10 reduces gradually, produces pressure handling on stoste or the dewatered cake to be traveling on the direction vertical with its direct of travel along with it.
Like this, the rotary compression filter 1 of present embodiment not only can be on the direct of travel of filter chamber 10 but also can compress on the direction vertical with direct of travel and handle stoste or dewatered cake, so the dewatered cake of discharging, obtained higher dehydration degree from filtered solid outlet 9.
In the present embodiment, increased pressure board 13 is provided with along the outer peripheral face 3a of interior snare 3 and the bottom surface 6c of dividing plate 6, this increased pressure board 13 mainly reduces the basal area of filter chamber 10 in filtering wet end (part by screen pack 5 inaccessible sides in the filter chamber 10) gradually, at filter cake path 12 (is the filtration wet end part in addition in the filter chamber 10, i.e. space) from the terminal of filtering wet end to filtered solid outlet 9, the top 4d almost parallel of the bottom surface of increased pressure board 13 and outer snare 4, in filter cake path 12, the basal area of filter chamber 10 reduces hardly, so compare with original rotary compression filter, can in filter chamber 10, carry out high filtration of efficient and dehydration.
This point is illustrated in greater detail again, the above-below direction of filter cake path 12 is made of the bottom surface of increased pressure board 13 and the top 4d of outer snare 4, and the side is made of the inwall of not shown external shell, because the moisture in the filter cake path 12 is discharged to the outside fast, so in filter cake path 12, even the compression filter cake can not be isolated moisture effectively from dewatered cake on perpendicular to the direction of direct of travel, can not reach the filtration of promotion dewatered cake and the purpose of dehydration, but in filtering wet end, when compression dewatered cake on the direction vertical with direct of travel, because the moisture of being squeezed out is discharged to the outside from screen pack 5 apace, so can carry out high filtration of efficient and dehydration, can discharge the dewatered cake of higher dehydration degree.
Have, in the present embodiment, screen pack 5 is formed by the level and smooth metallic plate with many apertures again, still, also can be formed by the sintered body of the porous material with water penetration, for example plastics, metal or pottery etc.
In addition, pressing mechanism is not necessarily leaveed no choice but be provided as outside dividing plate 6 and they increased pressure boards 13 of parts independently mutually again, also can make the shape of dividing plate 6 itself and size the basal area of filter chamber 10 is reduced gradually, make and handle stoste or dewatered cake is compressed on the direction vertical with direct of travel.
Fig. 2 is the profile of structure of the 3rd embodiment of expression rotary compression filter 1 of the present invention.In the present embodiment, the pressurized portion 6e of the lower inside of dividing plate 6 has the function of pressing mechanism, as shown in Figure 3, displacement increased pressure board 13a with the arbitrfary point as rotating fulcrum 16, filtered solid outlet 9 sides can displacement on above-below direction, perhaps can be with certain cycle displacement (i.e. swing).Make the mechanism of increased pressure board 13 displacements omit explanation for being used to, can suitably utilize cam mechanism or crank mechanism etc.
So.Owing to can make increased pressure board 13 displacements textural, so can set the position of the increased pressure board 13 that is suitable for running well, when entry into service, processing stoste that savings is sufficient in machine or dewatered cake and generation are filtered and are dewatered between required enough internal pressures, can use the extremely narrow way of filter cake path 12, making does not have the dewatered cake of fully filtration and dehydration not to be discharged to the outside from filtered solid outlet, thereby the back pressure apparatus with movable valve shown in Figure 12 107 that uses in original rotary compression filter can omit in the rotary compression filter 1 of present embodiment.
In addition, when constituting increased pressure board 13 swingably, can prevent that dewatered cake from stopping up in filter cake path mouth, in addition, also can runs steadily when very high even maximum pressure is set for.
In addition, increased pressure board 13 promptly can be made and all carry out displacement, and also can make is that a part is carried out displacement.
Have, the displacement of increased pressure board 13 shown in Figure 2 also can be adopted automatic control again.For example, when the composition of the concentration of the solid portion of handling stoste or solid portion along with time or season and when change, if rotating shaft, handle the quantity delivered of stoste, the operating conditions such as addendum modification of increased pressure board 13 are certain, owing to handle the difference of the proterties of stoste, the dehydration degree of the dewatered cake that is discharged from also changes, if setting pressure sensor on the surface of the increased pressure board 13 in filter chamber 10, detect the pressure of the each several part in the filter chamber 10 and make increased pressure board 13 displacements according to this pressure, just controlled filter chamber 10 pressure inside at an easy rate can be controlled at the dehydration degree of the dewatered cake of discharging in the desirable scope.
Yet, under the situation of original rotary compression filter, when the movable valve 107 (with reference to Figure 12) of back pressure apparatus of similar detection device is used in displacement, the inwall of filter cake path 112 is with 110 aggregate-values to the frictional force of the dewatered cake of filtered solid outlet 109 become main error, the control that can not be satisfied with from the filter chamber.
Fig. 4 is the profile of structure of the 4th embodiment of expression rotary compression filter 1 of the present invention, and as shown in the figure, in the present embodiment, dividing plate 6 is made the shape that the basal area that makes filter chamber 10 reduces gradually, and dividing plate 6 itself has the function of pressing mechanism.In more detail, in original rotary compression filter 101 (with reference to Fig. 9), the bottom surface 106c of dividing plate 106 be parallel to outer snare 104 straight line portion top 104d stretch, the basal area of filter chamber 110 does not reduce, and in the present embodiment, the bottom surface 6c of dividing plate 6 from the medial end 6a that contacts with the outer peripheral face 3a face of interior snare 3 to outboard end 6b, be approximately perpendicular to the top 4d of the straight line portion of outer snare 4 at first, next extend to filtered solid outlet 9 sides with mild curve, snare 4 ground extend to outboard end 6b outside finally being roughly parallel in filter cake path 12, and the basal area of filter chamber 10 reduces gradually at the filtration wet end.
Thereby, filtration wet end at present embodiment can be compressed in the dewatered cake of advancing in the filter chamber 10 on the direction vertical with direct of travel, compare with original rotary compression filter, high filtration of efficient and dehydration can be carried out, the dewatered cake of higher dehydration degree can be obtained.
In addition, in the present embodiment, screen pack 5 is by forming because of the level and smooth metallic plate that has many apertures to have water penetration.And these apertures dispose the different aperture of diameter at the regional G1 of the 5a of inner peripheral portion side and the regional G2 of the 5b of outer peripheral edges portion side as shown in Figure 5.More specifically, at regional G1 configuration and original identical diameter be the aperture 14 of (preferably 0.18) about 0.16～0.20mm, regional G2 configuration than the aperture 14 of regional G1 little, diameter is the aperture 15 about 0.11～0.15 (preferably 0.13mm), that is to say, on screen pack 5, the aperture 15 that diameter is little is configured in the outside (5b of outer peripheral edges portion side) of the big aperture of diameter 14.And Fig. 4 and line 5c shown in Figure 5 are the lines of demarcation of regional G1 and regional G2.
Like this, in the present embodiment, because at the 5b of outer peripheral edges portion of the screen pack 5 side configuration diameter aperture 15 littler than original aperture, so compare with original rotary compression filter, the efficient that the suspended solid (particulate) in the processing stoste is filtered net 5 seizure has improved.This is done illustrate in greater detail, at first, processing stoste in the importing machine is in filter chamber 10, the process of the filtration zone K (with reference to Fig. 4) by the scope that 6d is about 200 ° above dividing plate 6, most moisture (free water) is discharged to outside the filter chamber 10 by the aperture 14,15 of screen pack 5.
The dehydration of this filtration zone K is such, owing to handle the supply pressure of stoste is lower pressure (0.1Mpa is following), so the particulate of not worrying handling in stoste or the dewatered cake can be discharged to outside the filter chamber 10 from big (identical with the diameter of original technology) aperture 14 of diameter of the regional G1 of the 5a of the inner peripheral portion side that is configured in screen pack 5, but in expressing zone J (with reference to Fig. 4), because dividing plate 6 has the pressue device function, pressure in the filter chamber 10 is along with handling advancing of stoste or dewatered cake, pressure in the filter chamber 10 increases (being 0.6Mpa to the maximum) gradually, handling stoste or dewatered cake has because of internal pressure increases from the aperture 14 of screen pack 5 and is discharged to danger filter chamber 10 outside (owing to the aperture 15 of the regional G2 that is configured in the 5b of outer peripheral edges portion side is littler than original hole diameter, though the internal pressure of filter chamber 10 increases, the danger that particulate spills is so not big.), at this moment atomic capturing efficiency has descended.
But, in the present embodiment, because dividing plate 6 is made the basal area of filter chamber 10 is reduced gradually, thus be positioned at the processing stoste of snare 3 sides of filter chamber 10 or dewatered cake because of this dividing plate 6 along with filter chamber 10, advance leave gradually snare 3 shift to outside snare 4 sides.So, making on the position (position shown in the M among Fig. 4) that internal pressure uprises because of dividing plate 6 in filter chamber 10, handle stoste or dewatered cake by with the corresponding place of regional G2 (aperture 15 zones littler than the hole diameter of prior art are set) of the 5b of the outer peripheral edges portion side of screen pack 5, regional G1 the identical aperture 14 of inner edge portion 5a side that is configured in screen pack 5 with hole diameter prior art by dividing plate 6 from inboard obturation.Thereby the particulate of handling stoste or dewatered cake just in time can be avoided the problem that the atomic capturing efficiency in the stoste reduces of handling not outside aperture 14 is discharged to filter chamber 10.
In the present embodiment, on screen pack 5, be provided with 2 kinds of different apertures 14,15, the aperture 15 that diameter is little is configured in the outside of the big aperture of diameter 14, but also can for example aperture of 10 kinds of different-diameters be set on screen pack 5, from the inboard to the outside, the diameter of the aperture that is disposed reduces gradually.
At last, according to Fig. 6, not that the 5th embodiment of the rotary compression filter 1 of level describes to filter cake path 12.Explanation so far all is configured to approximate horizontal to filter cake path 12, and this is for the convenience that illustrates, among the present invention, to the angle of filter cake path 12 without any restriction.Be configured in the foot of machinery when filter cake path 12, when not closing the mechanism of filter cake path 12 and filtered solid outlet 9 fully, a part of handling stoste during entry into service is not from the aperture 14 of screen pack 5,15 pass, but flow out from filtered solid outlet 9 by filter cake path 12, so need the device (back pressure apparatus that for example has movable valve shown in Figure 12 107) of temporary transient locking filter cake path 12.To this, as shown in Figure 6, if filter cake path 12 towards last, in when beginning running, need not take special measure just can put aside processing stoste or dewatered cake.
Embodiments of the invention more than have been described, but the invention is not restricted to these embodiment, in addition, in this manual, use " water penetration " " dehydration ", the vocabulary of " water " of " moisture " or the like, this for convenience of and use, be not the implication of getting rid of " oil " etc., broadly be the meaning of " liquid ".
Rotary compression filter of the present invention can improve the average dehydration degree in the dewatered cake of discharge by leaps and bounds, can improve dewatering efficiency.In addition, owing to the effect of pressing mechanism, can improve the pressure of the filtration wet end of expressing zone.Can improve the pressure of the final dewatering part of filter chamber, its result can improve all dehydration degree of dewatered cake.
Have again,, in the filter chamber, be provided with increased pressure board as pressing mechanism, when this increased pressure board being made to swing up and down the time, select the width of stable operating condition to enlarge, in addition, owing to can carry out processed with high pressure, so the dehydration degree of dewatered cake has improved.Have again, because the combining of signal of the displacement of increased pressure board and pressure sensor etc. controlled automatically, so corresponding with the proterties variation of handling stoste, can be accommodated in the dehydration degree of dewatered cake in certain scope.
In addition, rotary compression filter of the present invention can be used for the separation of all solid-liquid mixed treating liquids, when containing the solid portion of handling stoste and have densification, compares with other solid-liquid separating machine, has given play to significant especially superiority.For instance, can be used to pulverize fruit or vegetables crushed material juice separation, soya-bean milk separation, contain the processing of liquid of the fine fiber of papermaking wastewater etc.In addition, when water treatment is used for sludge dewatering down, as mentioned above owing to can make airtight structure to the part beyond the filtered solid outlet, therefore can be reduced to Min. to the deterioration of environmental pollution that causes because of stench and operating environment, when dewatered cake is handled in burning, can fuel savings, can save the energy.
Claims (4)
1. rotary compression filter that is used for sludge dewatering, have: section is the filter chamber of rectangle; Interior snare is fixed on rotating shaft week, along with rotating shaft is rotated; Outer snare, be configured in above-mentioned in the outside of snare, the straight line portion that extends to terminal by the round shape part of extending at the concentric circles of rotating shaft from base end part and this concentrically ringed tangential direction of edge constitutes; Two screen packs, form by material with water penetration, be fixed on respectively with its inner peripheral portion on the two sides of above-mentioned interior snare, simultaneously the two sides of its outer peripheral edges portion and the above-mentioned outer snare position and the size of joining is being configured, above-mentioned filter chamber is by the outer peripheral face of snare in above-mentioned, the inner peripheral surface of above-mentioned outer snare, each medial surface of above-mentioned screen pack constitutes, have the part of the ring-type of extending on C word shape ground and the straight shape part that linearity ground extends, in above-mentioned filter chamber, import continuously and handle stoste, make above-mentioned rotating shaft rotation, each medial surface of above-mentioned screen pack is moved to the terminal direction rotation of this filter chamber continuously, in this filter chamber, above-mentioned processing stoste is moved to the terminal direction thus by friction with each medial surface of above-mentioned net, simultaneously this processing stoste is compressed, at this moment remove moisture from handling stoste, remaining dewatered cake is discharged to the outside by the filter cake path from filtered solid outlet, it is characterized in that, by the interior snare side in above-mentioned filter chamber pressing mechanism is set, the cross-sectional area of above-mentioned filter chamber reduces gradually along the moving direction of handling stoste or dewatered cake, be positioned at the processing stoste of snare side or dewatered cake along with expert in the filter chamber and then leave gradually, move to outer snare side from snare.
2. rotary compression filter as claimed in claim 1 is characterized in that above-mentioned screen pack has the aperture of many at least 2 kinds of different-diameters, and on above-mentioned screen pack, the aperture that diameter is little is configured in the outside of the big aperture of diameter.
3. rotary compression filter as claimed in claim 1 or 2, it is characterized in that, as pressing mechanism, increased pressure board is set in the above-mentioned filter chamber, this increased pressure board can the arbitrfary point be that rotating fulcrum is swung and can displacement on above-below direction, and this increased pressure board constitutes and can select stable operating condition.
4. rotary compression filter as claimed in claim 1 or 2 is characterized in that, is provided with pressure sensor on above-mentioned increased pressure board, and above-mentioned increased pressure board carries out displacement corresponding to the pressure that above-mentioned pressure sensor detected.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP292224/1999 | 1999-10-14 | ||
| JP292224/99 | 1999-10-14 | ||
| JP29222499A JP3739613B2 (en) | 1999-10-14 | 1999-10-14 | Rotary compression filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1378478A CN1378478A (en) | 2002-11-06 |
| CN1199705C true CN1199705C (en) | 2005-05-04 |
Family
ID=17779116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008141754A Expired - Fee Related CN1199705C (en) | 1999-10-14 | 2000-10-12 | Rotary type compressive filtrating machine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3739613B2 (en) |
| KR (1) | KR100481628B1 (en) |
| CN (1) | CN1199705C (en) |
| AU (1) | AU7684600A (en) |
| WO (1) | WO2001026776A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2352414A1 (en) | 2001-07-05 | 2003-01-05 | Industries Fournier Inc. | Device for controlling and keeping cakes in a rotary press |
| JP4636581B2 (en) * | 2001-09-27 | 2011-02-23 | 孝治 大塚 | Rotary compression filter and method for dehydrating treatment liquid containing sludge |
| WO2004087406A1 (en) * | 2003-03-27 | 2004-10-14 | Tomoe Engineering Co., Ltd. | Rotary compression filtering machine and method for dewatering soft material being treated |
| WO2005077848A1 (en) * | 2004-02-18 | 2005-08-25 | Tomoe Engineering Co., Ltd. | System and method for concentrating sludge |
| CN100493666C (en) * | 2004-04-28 | 2009-06-03 | 巴工业株式会社 | High dehydration type rotary pressurization dehydrator |
| JP4687866B2 (en) * | 2004-06-17 | 2011-05-25 | 巴工業株式会社 | Sludge dewatering agent for rotary compression filter and sludge dewatering method using the same |
| CA2784991A1 (en) * | 2004-08-09 | 2006-02-23 | Prime Solution, Inc. | Rotary fan press |
| EP1971533A4 (en) * | 2005-10-28 | 2009-12-23 | Prime Solution Inc | Mass thickening apparatus |
| CN101296739B (en) * | 2005-10-28 | 2011-12-14 | 普莱姆解决方案公司 | Rotating fan compressor |
| US8192624B2 (en) | 2007-07-23 | 2012-06-05 | Tsukishima Kikai Co., Ltd. | Filtering apparatus |
| US8662315B2 (en) | 2008-07-14 | 2014-03-04 | Prime Solution, Inc. | Rotary fan press |
| US20110083701A1 (en) * | 2009-10-09 | 2011-04-14 | General Electric Company | Process to clean gas turbine fuel chamber components |
| CN102641614A (en) * | 2011-02-16 | 2012-08-22 | 浙江科力尔环保设备有限公司 | Rotary extrusion-type filter mud-discharging guide block |
| CN102107103A (en) * | 2011-02-17 | 2011-06-29 | 浙江科力尔环保设备有限公司 | Channel for rotary extruding-type filter |
| CN103896473A (en) * | 2014-03-28 | 2014-07-02 | 四川环能德美科技股份有限公司 | Deep electroosmotic dewatering device of sludge |
| CA2941386C (en) | 2014-04-08 | 2021-05-25 | Prime Solution Inc. | Rotary fan press with auger |
| JP5913698B1 (en) * | 2015-07-23 | 2016-04-27 | 巴工業株式会社 | Electroosmotic rotary pressure dehydrator |
| CN105776809B (en) * | 2016-05-03 | 2018-09-25 | 武汉市修远科技有限公司 | A kind of sludge dehydration device |
| JP6148804B1 (en) * | 2017-03-28 | 2017-06-14 | 巴工業株式会社 | Control method of rotary pressure dehydrator |
| JP6383039B1 (en) * | 2017-03-28 | 2018-08-29 | 巴工業株式会社 | Rotary pressure dehydrator |
| CN107056010B (en) * | 2017-05-08 | 2023-06-30 | 江苏涞森环保设备有限公司 | Worm extrusion type dehydrator |
| CN109896191B (en) * | 2019-04-18 | 2020-03-17 | 陈凤娟 | Environment-friendly medical waste collection equipment |
| CN112337167A (en) * | 2020-12-08 | 2021-02-09 | 重庆市涪陵区奋发农业开发有限公司 | Kiwi fruit juice filter equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3361263A (en) * | 1965-06-10 | 1968-01-02 | Frank W Egan & Company | Automatic screening head for extruders |
| NO140334C (en) * | 1977-02-18 | 1979-08-15 | Myrens Verksted As | DISC PRESSURE FOR CONTINUOUS PRESSING OF WATER PULP OR SUSPENSIONS |
-
1999
- 1999-10-14 JP JP29222499A patent/JP3739613B2/en not_active Expired - Lifetime
-
2000
- 2000-10-12 KR KR10-2002-7003070A patent/KR100481628B1/en not_active IP Right Cessation
- 2000-10-12 WO PCT/JP2000/007073 patent/WO2001026776A1/en active IP Right Grant
- 2000-10-12 CN CNB008141754A patent/CN1199705C/en not_active Expired - Fee Related
- 2000-10-12 AU AU76846/00A patent/AU7684600A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU7684600A (en) | 2001-04-23 |
| KR100481628B1 (en) | 2005-04-14 |
| CN1378478A (en) | 2002-11-06 |
| JP2001113109A (en) | 2001-04-24 |
| KR20020029784A (en) | 2002-04-19 |
| WO2001026776A1 (en) | 2001-04-19 |
| JP3739613B2 (en) | 2006-01-25 |
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