JP3894366B2 - Solid-liquid separator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solid-liquid separation device that separates moisture from a processing object containing a large amount of moisture.
[0002]
[Prior art]
It is well known in the art that a processing object containing a large amount of moisture, for example, sludge water, is dehydrated by a solid-liquid separator of the above type. Conventional solid-liquid separators are roughly divided into two systems. One of the methods is a method of supplying the treatment object onto the filter cloth belt, causing the water in the treatment object to flow down through the filter cloth belt, and collecting the solid content remaining on the filter cloth belt (for example, Patent Document 1). This type of solid-liquid separation device has the advantage that the wide surface of the filter cloth can be used as a filtration surface. However, since the filter cloth belt is likely to be clogged, a large amount of water is required for washing the filter cloth belt. The drawbacks that require washing water are inevitable.
[0003]
In the other method, a movable ring is arranged between a number of fixed rings to form a cylindrical filter body, and a processing object is supplied and transported into the filter body. In this method, moisture in the processing object flows down through the gap between the rings (see, for example, Patent Document 2). In this type of solid-liquid separator, the movable ring operates between the fixed rings, so that clogging between the two rings can be prevented. However, since the filter body is formed in a cylindrical shape, the upper region of the filter body does not actually function to separate moisture from the object to be processed, and the utilization rate of using the filter body as a filtration surface is reduced. .
[0004]
[Patent Document 1]
Japanese Examined Patent Publication No. 61-3568 (page 2-3, Fig. 1)
[Patent Document 2]
Japanese Examined Patent Publication No. 7-10440 (page 2-5, FIG. 1)
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a solid-liquid separation device that can prevent clogging and increase the utilization rate of a filtration surface.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is arranged between a first plate group consisting of a plurality of first filter plates arranged substantially parallel to each other at intervals, and between the first filter plates. A second plate group consisting of a plurality of second filter plates positioned substantially parallel to each other, and an upper edge portion of the first filter plate positioned above the upper edge portion of the second filter plate. And a driving means for moving at least one of the first plate group and the second plate group in parallel so as to alternately occupy the lower position and the lower position, and a filtration comprising the first plate group and the second plate group An amount regulating means for regulating the amount of the processing object supplied onto the body, and the filter body is inclined so that the upstream part in the processing object moving direction is lower than the downstream part. The amount regulating means is configured to determine a height level of a processing object existing in the container and over the filter body, and a container provided upstream of the filter body in the processing object movement direction. A level regulating device for regulating, and connected to the first plate group or the second plate group so as to move in parallel with the first plate group or the second plate group. A solid-liquid separator is proposed (claim 1).
[0012]
Further, in the solid-liquid separation device according to claim 1, the level regulating device includes a discharge pipe having a discharge port of a processing object opened in the container, and the excessive processing object in the container. It is advantageous that the gas is discharged from the container through the discharge pipe (claim 2).
[0013]
Furthermore, in the solid-liquid separation device according to claim 2, it is advantageous that the height position of the discharge pipe is adjustable (claim 3).
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings.
[0016]
FIG. 1 is a schematic cross-sectional view showing a solid-liquid separation device 1 for dewatering sludge water, which is an example of a processing object, and a flock formation tank 2 for flocking sludge water supplied to the solid-liquid separation device 1. FIG. 2 is a view of the solid-liquid separator 1 as viewed in the direction of arrow II in FIG. 1, and FIG. 3 is an exploded perspective view of the solid-liquid separator 1. The solid-liquid separation device 1 shown in FIGS. 1 to 3 includes a base 3, a first plate unit 4, and a second plate unit 5. The base 3 includes a pair of side plates 6 facing each other. 7 and stages 8 and 9 for connecting these side plates 6 and 7 together. The upper and lower portions of the base 3 are open. Further, in FIG. 2, a part of the stay 8 is broken away.
[0017]
The first plate unit 4 also includes a pair of side plates 10 and 11 that face each other, and stays 12 and 13 that integrally connect the side plates 10 and 11, and is disposed between the side plates 10 and 11. A number of first filter plates 14 are provided. Similarly, the second plate unit 5 also includes side plates 15 and 16 facing each other, stays 17 and 18 that integrally connect these side plates 15 and 16, and a plurality of second plates disposed between the side plates 15 and 16. Two filter plates 19 are provided.
[0018]
As shown in FIGS. 1 and 2, the side plates 15 and 16 of the second plate unit 5 are located between the side plates 10 and 11 of the first plate unit 4. Each side plate 10, 11, 15, 16 shown in the figure is composed of a single plate material, but each side plate 10, 11, 15 is easy to assemble the elements of the solid-liquid separator 1. , 16 can be constituted by a plurality of plates fixed to be detachable from each other. For example, each side plate 10, 11, 15, 16 is constituted by an upper plate and a lower plate, and the upper plate and the lower plate are detachably connected by bolts and nuts.
[0019]
As shown in FIGS. 4 and 5, both the first filter plate 14 and the second filter plate 19 are made of a long and narrow plate material such as metal or hard resin, and have thicknesses t1 and t2. Is set to, for example, about 1 to 4 mm, preferably about 1 to 3 mm. The widths W1 and W2 of the first and second filter plates 14 and 19 are, for example, about 20 to 30 mm.
[0020]
A number of first filter plates 14 are supported by support bars 20 and 21 penetrating through their longitudinal ends, and the longitudinal ends of the support bars 20 and 21 are fixedly supported on the side plates 10 and 11, respectively. Has been. Similarly, a large number of second filter plates 19 are also supported by support rods 22 and 23 penetrating through their longitudinal ends, and the longitudinal ends of the support rods 22 and 23 are fixed to the side plates 15 and 16. It is supported. In this way, the plurality of first filter plates 14 and the plurality of second filter plates 19 are integrally assembled, respectively, and the first plate group including the plurality of first filter plates 14 and the plurality of first filter plates 14 are combined. A second plate group composed of two filter plates 19 is formed.
[0021]
As shown in FIG. 4, ring-shaped spacers 24 and 25 fitted to the support rods 20 and 21 are disposed between the first filter plates 14, so that the first filter plates 14 are mutually connected. They are located almost parallel with a gap. Similarly, ring-shaped spacers 26 and 27 fitted to the support rods 22 and 23 are also arranged between the second filter plates 19, and the second filter plates 19 are spaced substantially parallel to each other. positioned. In that case, each 2nd filter plate 19 is arrange | positioned between each 1st filter plate 14, and the 1st filter plate 14 and the 2nd filter are arranged in the longitudinal direction of the support rods 20, 21, 22, and 23. Plates 19 are arranged alternately. As described above, the solid-liquid separation device 1 of the present example includes the first plate group including the plurality of first filter plates 14 arranged substantially in parallel with each other, and the first filter plate 14. There is provided a second plate group consisting of a plurality of second filter plates 19 which are arranged in between and located substantially parallel to each other, and each of the filter plates 14 and 19 is constituted by an elongated plate. The gap G (FIG. 5) between the first filter plate 14 and the second filter plate 19 adjacent to each other varies depending on the type of the object to be processed, but is generally 2 mm or less, particularly 0.1 to 0.5 mm. Set to
[0022]
Further, as shown in FIG. 2, a motor M is supported on one side plate 7 of the base 3, and a first shaft 28 that is rotationally driven by the motor M is connected to each of the base 3 via bearings 51 and 52. The side plates 6 and 7 are rotatably supported. Further, as shown in FIGS. 1 and 3, a second shaft 29 extending in parallel with the first shaft 28 is rotatably supported on both side plates 6 and 7 via bearings 53 and 54. And sprocket wheels 30 and 31 are fixed to one end portions of the second shafts 28 and 29, respectively, and a chain 32 is wound around the sprocket wheels 30 and 31. These sprocket wheels 30 and 31 and the chain 32 are located outside the side plate 6 of the base 3 as can be seen from FIG.
[0023]
Further, as shown in FIGS. 1 to 3, the first shaft 28 and the second shaft 29 have two first eccentric cams 37; 37; 38; The two first eccentric cams 37 and 37 fixed to the first shaft 28 are fixed to through holes formed in the side plates 10 and 11 of the first plate unit 4. 39 and 39 are respectively rotatably fitted. Similarly, the two first eccentric cams 38, 38 fixed to the second shaft 29 are also fixed to the through holes formed in the side plates 10, 11 of the first plate unit 4, 40 are respectively rotatably fitted.
[0024]
Furthermore, two second eccentric cams 41, 41; 42, 42, which are formed in exactly the same form, are fixed to the first and second shafts 28, 29, respectively. As will be described later, the eccentric cams 41 and 42 are fixed to the first and second shafts 28 and 29 in a state in which the angular positions are different from those of the first eccentric cams 37 and 38, respectively. The two second eccentric cams 41, 41 fixed to the first shaft 28 are attached to the bearings 43, 43 fixed to the through holes formed in the side plates 15, 16 of the second plate unit 5. The two second eccentric cams 42 and 42 that are rotatably fitted and similarly fixed to the second shaft 29 are also fixed to the through holes formed in the side plates 15 and 16. , 44 are rotatably fitted respectively.
[0025]
6A and 6B are views for explaining a state in which the first eccentric cams 37 and 38 and the second eccentric cams 41 and 42 are fixed to the first shaft 28 and the second shaft 29. FIG. is there. The first and second eccentric cams 37 and 38 and the second eccentric cams 41 and 42 are formed in a disk shape having the same radius, and the central axes X1 and X2 thereof are the same as those of the first and second shafts 28 and 29. It is separated from the central axis Y by δ. This eccentricity δ is set to an appropriate value, for example, 5 mm. Further, the center axis lines X1, X2 of the eccentric cams 37, 38; 41, 42 are at an angle with respect to a reference line Z passing through the center axis line Y of each of the axes 28, 29, and 180 degrees in the illustrated example. Are arranged. Therefore, when the shafts 28 and 29 are rotated around the central axis Y in the direction of the arrow A, the first eccentric cams 37 and 38 and the second eccentric cams 41 and 42 have an eccentric rotation of 180 °. As a result, the first plate unit 4 and the second plate unit 5 move in parallel. In this way, the first filter plate 14 and the second filter plate 19 move in parallel with a phase difference of 180 ° in a plane parallel to the surfaces thereof. All the points on the first filter plate 14 and the second filter plate 19 perform a circular motion in the direction of arrow A with the eccentricity δ as a radius on a plane parallel to the surfaces.
[0026]
7 and 8 are views for explaining the movement of the first filter plate 14 and the second filter plate 19 at this time. In these drawings, the first and second filter plates 14 and 19 are shown. In order to facilitate identification, the filter plates 14 and 19 are provided with diagonal lines in opposite directions. Arrows P and Q indicate that the first and second filter plates 14 and 19 are in parallel motion, respectively. Further, the upper edges 14A and 19A of the filter plates 14 and 19 shown in FIGS. 7 and 8 are formed in a wave shape unlike the filter plates shown in FIGS. 1 to 5, but this point will be described later. .
[0027]
FIG. 7 shows a state where the first filter plate 14 occupies the uppermost position and the second filter plate 19 occupies the lowermost position. The edge portion 14 </ b> A is located above the upper edge portion 19 </ b> A of the second filter plate 19. Further, FIG. 8 shows the state when the first filter plate 14 occupies the lowest position and the second filter plate 19 occupies the uppermost position. At this time, the second filter plate The upper edge portion 19 </ b> A of the 19 is located above the upper edge portion 14 </ b> A of the first filter plate 14. Thus, when the first filter plate 14 and the second filter plate 19 move in parallel with a phase difference, the upper edge portion 14A of the first filter plate 14 is changed to the upper edge portion 19A of the second filter plate 19. It occupies an upper position and a lower position alternately.
[0028]
Therefore, as shown in FIG. 7, if a certain solid matter T is placed on the first filter plate 14 occupying the uppermost position, the solid matter T is moved in parallel by the first filter plate 14. Along with this, it descends while rotating in the direction of arrow A1. At this time, the second filter plate 19 rises, and when the upper edge portion 19A moves to a position higher than the upper edge portion 14A of the first filter plate 14, the solid matter T is on the second filter plate 19. Change to. Next, as shown in FIG. 8, the solid T placed on the second filter plate 19 rotates in the direction of the arrow A <b> 1 along with the parallel movement of the second filter plate 19, and on the first filter plate 14. Change. By repeating this operation, the solid material is conveyed in the direction of arrow B.
[0029]
Next, the operation when the sludge water is dehydrated by the solid-liquid separator 1 described above will be described.
[0030]
Sewage, food processing wastewater, wheat wastewater, plating wastewater, various polishing wastewaters, livestock wastewater, or other various wastewaters discharged from ordinary households, food processing factories, other factories, pig farms or hotels Water treatment is performed by the treatment apparatus, and the sludge water after the water treatment is fed into the flock formation tank 2 shown in FIG. A flocculant is mixed in the sludge water, and flocs are formed in the floc forming tank 2. The moisture content of the sludge water at this time is, for example, about 99% by weight. The flocified sludge water flows out from the outlet 45 of the flock formation tank 2 while overflowing, and moves onto the first and second filter plates 14 and 19 of the solid-liquid separator 1. In FIG. 1, the code | symbol S is attached | subjected to the sludge water which moved on the filter plate.
[0031]
At this time, the motor M is operating, the first shaft 28 is driven to rotate in the direction of arrow A in FIG. 1, and the rotation is transmitted to the second shaft 29 via the chain 32 shown in FIG. The second shaft 29 is also rotationally driven in the direction of arrow A. As a result, the first and second eccentric cams 37, 38; 41, 42 are eccentrically rotated in the direction of the arrow A around the central axis Y (FIG. 6) of the first and second shafts 28, 29. And the second filter plates 14 and 19 move in parallel with a phase difference of 180 ° as described above. For this reason, the sludge water S supplied on the 1st and 2nd filter plates 14 and 19 is conveyed by the arrow B direction similarly to the case of the above-mentioned solid T. At this time, the water in the sludge water flows downward through a minute gap G (FIG. 5) between the first filter plate 14 and the second filter plate 19, as indicated by an arrow F in FIG. The remaining moisture and solid matter are conveyed in the direction of arrow B. A first plate group composed of a plurality of first filter plates 14 and a second plate group composed of a plurality of second filter plates 19 constitute a filter body 71.
[0032]
Thus, the sludge having a reduced moisture content falls and is recovered while being guided by the guide plates 46 fixed to the side plates 15 and 16 of the second plate unit 5. The water content of the recovered sludge varies depending on the characteristics of the sludge water before treatment, the operating conditions of the solid-liquid separator, and can be about 80 to 85% by weight, for example. Moisture flowing down through the gap G, that is, the filtrate, is received by a tray (not shown) and collected. At this time, since the solid content is still contained in this water, this water is treated with other waste water and again sent to the solid-liquid separator 1 for dehydration. The saucer can be fixed to the lower part of the base 3, for example.
[0033]
In the case of sludge water containing relatively large solids such as pig hair, such as livestock wastewater discharged from pig farms, the solid-liquid separation device shown in the figure before the wastewater is treated with water. As described above, the discharged solid-liquid can be separated into relatively large solids and moisture. In this case, solid-liquid separation can be performed without flocking the drainage. Since the water separated in this way by the solid-liquid separation device still contains a large amount of solids, the sludge water composed of the water is treated with water, then it is flocked and again separated into solid and liquid. It can be separated into solid and liquid by the apparatus.
[0034]
In addition, the member which attaches | subjects 60, 61, 62 to FIG. 1 thru | or FIG. 3 is a seal | sticker which prevents sludge water falling below, These seals 60, 61, 62 are attached to the side plates 10 and 11. Each is fixed.
[0035]
As described above, when the moisture and the solid content are separated, it is inevitable that a small amount of the solid content enters the gap G between the first filter plate 14 and the second filter plate 19. However, since both plates 14 and 19 are moving in parallel with each other in phase, the solid content that has entered the gap G due to the stirring motion is efficiently discharged from the gap G, and the solid content is clogged in the gap. This can prevent problems that cause clogging.
[0036]
At this time, as can be seen from FIG. 7 and FIG. 8, both plates are used when the first filter plate 14 occupies the uppermost position and when the second filter plate 19 occupies the uppermost position. Since parts 14 and 19 (parts with double diagonal lines) are located in an overlapping state, the sliding motion by both plates 14 and 19 is always guaranteed, and the cleaning efficiency of the gap G is enhanced.
[0037]
In addition, the filter body 71 constituted by the first plate group and the second plate group is not cylindrical and is in a substantially flat state, and solid-liquid separation of sludge water can be performed over the entire upper surface. Since a wide surface can be used as a filtration surface, the solid-liquid separation efficiency can be increased. Moreover, since the structure is simple, the manufacturing cost of the solid-liquid separator can be reduced. Further, the first filter plate 14 and the second filter plate 19 that are located next to each other can be configured to be in sliding contact with each other, but these plates 14 and 19 are not in contact with each other. , 19 can be used to eliminate wear due to contact of these plates, and these plates can be used over a long period of time. Thus, the advantage that the maintenance cost of the solid-liquid separator can be reduced is also obtained. Furthermore, there is an advantage that the solid-liquid separator can be easily cleaned.
[0038]
The illustrated solid-liquid separator 1 is configured such that the first plate group and the second plate group are both moved in parallel with a phase difference, but only one plate group is moved in parallel. Even so, it is possible to efficiently separate the solid liquid of sludge water while preventing clogging. In short, the first plate group and the second plate group so that the upper edge of the first filter plate alternately occupies positions above and below the upper edge of the second filter plate. Drive means for parallelly moving at least one of them, supplying a processing object (sludge water in this example) onto the filter body 71 composed of the first plate group and the second plate group, The solid and liquid are separated.
[0039]
In the illustrated example, the play group is moved in parallel by the driving means constituted by the motor M, the first and second shafts 28 and 29, and the eccentric cams 37, 38, 41, and 42. However, the play group includes a parallel crank mechanism. The plate group may be configured to move in parallel by the driving means.
[0040]
Moreover, in the example shown in figure, although the filter body 71 which consists of a 1st plate group and a 2nd plate group is arrange | positioned in the horizontal state, you may make this filter body 71 incline. The filter body 71 is inclined so that the filter body portion on the upstream side in the movement direction of the processing object is lower or higher than the downstream portion. The example which inclines the filter body 71 so that the filter body part of the process target object movement direction upstream may become low is demonstrated in detail later.
[0041]
As shown in FIGS. 1 to 5, the upper edges of the first filter plate 14 and the second filter plate 19 can be formed in a straight line, but as shown in FIGS. When the upper edge portions 14A and 19A of the first filter plate 14 and the second filter plate 19 are formed in a wave shape in which the concave portion and the convex portion are repeated in the longitudinal direction, the first filter plate 14 and the second filter plate 19 are formed. The upper sludge water can be more reliably conveyed in the direction of arrow B.
[0042]
Moreover, as shown in FIG.1 and FIG.3, the process target object supplied and conveyed on the filter body 71 which consists of a 1st plate group and a 2nd plate group is pressurized toward the filter body. If the pressurizing means 47 (not shown in FIG. 2) is provided, the dewatering efficiency for sludge water can be further enhanced.
[0043]
The pressurizing means 47 of this example includes a pressurizing plate 48 made of a metal plate or a resin plate, and a weight 49 placed on the pressurizing plate 48. The base end portion of the pressurizing plate 48 has a first end portion. The plate unit 4 is supported on a support shaft 50 fixed to the side plates 10 and 11 in a swingable manner. Moisture can be squeezed out of the sludge water S by pressing the pressure plate 48 on which the weight 49 is placed against the sludge water S conveyed on the filter body composed of the first plate group and the second plate group. The dehydration efficiency can be increased.
[0044]
As shown in FIG. 1, the pressurizing plate 48 is formed between the upper surface of the filter body and the pressurizing plate 48 so that a wedge-shaped space with a gradually narrowing distance is formed in the conveying direction B of the sludge water S. If it arrange | positions, the dehydration efficiency can be improved, without impairing the transportability of sludge water. Further, by preparing the weights 49 of various weights and using the weights 49 having the most suitable weight according to the characteristics of the object to be processed, it is possible to further increase the dehydration efficiency.
[0045]
By the way, in the solid-liquid separation apparatus shown in FIG. 1 thru | or FIG. 8, since the filter body 71 is arrange | positioned in the horizontal state, when solid-liquid separating a process target object by this solid-liquid separation apparatus, the said process target When a large solid contained in the material gets on the filter body and accumulates, and the amount of the accumulated material increases, it becomes difficult for moisture to flow through the gap G. In this case, the object to be treated flows on the solid matter deposited on the filter body without sufficiently solid-liquid separation, and this may be discharged out of the solid-liquid separation device as it is. This greatly reduces the solid-liquid separation function. In particular, since the livestock wastewater discharged from the pig farm contains large solids such as pig hair as described above, the above-mentioned problems are likely to occur when such sludge water is separated into solid and liquid.
[0046]
In order to prevent such a problem, in the solid-liquid separator 1 shown in FIG. 9, the first plate group including the plurality of first filter plates 14 and the plurality of second filter plates 19 are also included. The filter body 71 constituted by the second plate group is arranged to be inclined, and the upstream portion of the processing object moving direction is lower than the downstream portion. In addition, in this solid-liquid separator 1, the amount of the processing object supplied on the filter body 71 composed of the first plate group and the second plate group, instead of the flock formation tank 2 shown in FIG. An amount restricting means 72 for restricting is provided. Although the solid-liquid separation apparatus shown in FIG. 9 can also separate the solid-liquid of various treatment objects, it is assumed here that the treatment object is sludge water composed of livestock wastewater discharged from a pig farm. .
[0047]
The amount regulating means 72 shown in FIG. 9 is a container 73 provided on the upstream side in the moving direction of the object to be processed with respect to the filter body 71, and a processing object existing in the container 73 and on the filter body 71, that is, And a level regulating device 74 that regulates the height level H of the sludge water S.
[0048]
The container 73 is formed in a box shape with an open top, and the container 73 and the space above the filter body 71 communicate with each other. The container 73 is fixed to both side plates 10 and 11 of the first plate unit 4.
[0049]
Further, the level regulating device 74 of this example includes a discharge pipe 76 having a processing object discharge port 75 opened in the container 73, and this discharge pipe 76 is a through hole formed in the bottom wall 77 of the container 73. And a fixed pipe 78 fixed to the bottom wall 77 integrally. A return pipe 79 is fitted to the lower part of the fixed pipe 78. 9 and 10 is substantially the same as the solid-liquid separation device 1 shown in FIGS. 1 to 8, and the respective components shown in FIGS. The corresponding parts shown in FIGS. 9 and 10 are denoted by the same reference numerals as those shown in FIGS.
[0050]
Sludge water comprising livestock wastewater stored in a raw water tank (not shown) is supplied from the upper part to the container 73 through a conduit 80 by a pump (not shown). The sludge water supplied in this manner moves onto the filter body 71 and is subjected to solid-liquid separation in the same manner as in the case of the solid-liquid separator of the example described above. The separated moisture passes through the gap between the first filter plate 14 and the second filter plate 19 and flows downward as indicated by the arrow F, and the solid content falls from the filter body 71, and the guide plate Guided by 46 and collected.
[0051]
Here, although the sludge water S exists over the inside of the container 73 and the filter body 71, when the height level H of the upper surface is higher than the discharge port 75 of the upper part of the discharge pipe 76, the sludge water S is shown. Flows into the discharge pipe 76 from the discharge port 75 and is returned to the raw water tank through the fixed pipe 78 and the return pipe 79. Thus, since it is comprised so that the excess sludge water in the container 73 may be discharged | emitted out of the container 73 through the discharge pipe 76, the height level H of the surface of the sludge water S is always kept substantially constant. The height level of the processing object existing in the container 73 and the filter body 71 can be regulated, and the amount of the processing object supplied onto the filter body can be regulated.
[0052]
As described above, a large amount of sludge water is not supplied onto the filter body 71 at a time, and an appropriate amount of sludge water is supplied in accordance with the processing amount of the solid-liquid separator. Even if there is a relatively large solid material, sludge water does not pass through it as it is. Large solid matter on the filter body 71 slowly moves on the filter body over time, and is discharged from the solid-liquid separator 1. Thus, solid-liquid separation of sludge water can be performed efficiently.
[0053]
Further, the discharge pipe 76 shown in FIGS. 9 and 10 may be directly fixed to the container 73, but in the illustrated example, the discharge pipe 76 is fitted to the fixed pipe 78 so as to be movable up and down. By tightening the wing nut 81 screwed to the fixed pipe 68, the discharge pipe 76 can be fixed to the fixed pipe 78, and by loosening the wing nut 81, the discharge pipe 76 can be slid up and down. It is configured as follows. As described above, since the height position of the discharge pipe 76 is configured to be adjustable, the height level H on the filter body 71 is set so that solid-liquid separation can be performed most efficiently in accordance with the characteristics and type of the processing object. Can be adjusted.
[0054]
Further, in the solid-liquid separator shown in FIGS. 9 and 10, the container 73 is fixed to the side plates 10 and 11 of the first plate unit 4, and the container 73, the discharge pipe 76, and the fixed pipe 78 are the first. The filter plate 14 is configured to move in parallel with the filter plate 14. For this reason, the sludge water located over the container 73 and the filter body 71 is conveyed while receiving external force alternately in the moving direction and the opposite direction. For this reason, relatively large solids in the sludge water, in particular, pig hair, takes a posture oriented in a direction orthogonal to the longitudinal direction of the first and second filter plates 14 and 19. Since pig hair has a length of about 2 to 3 cm, if such pig hair is directed in a direction perpendicular to the longitudinal direction of the first and second filter plates 14, 19, the pig hair , The solid-liquid separation effect is further enhanced. Not only that, but a large number of pig hairs are positioned perpendicular to the first and second filter plates 14 and 19, so that the filter plates 14 and 19 and the pig hair constitute a fine sieve. Therefore, fine solids in sludge water can be separated from moisture, and the solid-liquid separation efficiency can be further increased.
[0055]
The container 73 is fixed to the side plates 15 and 16 (see FIG. 3) of the second plate unit 5, and the container 73, the discharge pipe 76, and the fixed pipe 78 are moved in parallel with the second filter plate 19. It is also possible to configure, and the same action as described above can be achieved by this.
[0056]
As described above, by connecting the amount restricting means to the first plate group or the second plate group so that the amount restricting means moves in parallel with the first plate group or the second plate group. Thus, the solid-liquid separation efficiency of the object to be treated can be further increased.
[0057]
In the example described above, the first plate group including the plurality of first filter plates 14 and the second plate group including the plurality of second filter plates 19 are provided. However, three or more plate groups are provided. You can also For example, as shown in FIG. 11, a second filter plate 19 is disposed between two first filter plates 14 adjacent to each other, and further, between the first and second filter plates 14, 19. A third filter plate 151 made of an elongated plate is arranged. Also in this case, a first plate group having a plurality of first filter plates 14, a second plate group having a plurality of second filter plates 19, and a third plate having a plurality of third filter plates 151. The plate groups can be configured to move in parallel with a phase difference, or one of the plate groups can be fixed in a stationary manner.
[0058]
As mentioned above, although the example in case a process target object is sludge water was shown, the solid-liquid separation apparatus which concerns on this invention can be used also as an apparatus which isolate | separates the solid liquid of various process target objects other than sludge water. . For example, before water treatment of wastewater discharged from various places, not limited to livestock wastewater, a solid-liquid separation device can be used to remove garbage in the wastewater. It can also be used as a device for separating soy milk and okara. Furthermore, the solid-liquid separation device according to the present invention can also be used as a device for removing solid content in juice.
[0059]
【The invention's effect】
According to the present invention, it is possible to prevent clogging of the solid-liquid separation device and to efficiently separate the solid-liquid of the processing object.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a solid-liquid separator and a floc forming tank.
FIG. 2 is a view of the solid-liquid separator shown in FIG. 1 as viewed from the direction of arrow II.
FIG. 3 is an exploded perspective view of the solid-liquid separator.
FIG. 4 is a perspective view showing a state in which first filter plates and second filter plates are alternately assembled.
FIG. 5 is a plan view showing an arrangement state of a first filter plate and a second filter plate.
FIG. 6 is a diagram illustrating an arrangement state of a first eccentric cam and a second eccentric cam.
FIG. 7 is a diagram illustrating the parallel movement of the first and second filter plates.
FIG. 8 is a diagram for explaining parallel movements of first and second filter plates;
FIG. 9 is a cross-sectional view showing another example of the solid-liquid separator.
10 is a perspective view showing a first plate unit of the solid-liquid separation device shown in FIG. 9 and containers fixed to these side plates. FIG.
FIG. 11 is a plan view showing an example in which a third filter plate is provided in addition to the first and second filter plates.
[Explanation of symbols]
1 Solid-liquid separator
14 First filter plate
14A Upper edge
19 Second filter plate
19A Upper edge
71 Filter body
72 Quantity control means
73 containers
74 level regulating device
75 outlet
76 discharge pipe
H Height level

Claims (3)

  A first plate group composed of a plurality of first filter plates arranged substantially parallel to each other at intervals, and a plurality of second plates arranged between the first filter plates and positioned substantially parallel to each other. The second plate group consisting of the filter plates and the upper edge of the first filter plate alternately occupy positions above and below the upper edge of the second filter plate, Driving means for moving at least one of the first plate group and the second plate group in parallel, and the amount of the processing object supplied on the filter body composed of the first plate group and the second plate group The filter is disposed so as to be inclined so that the upstream portion in the moving direction of the object to be processed is lower than the downstream portion, and the amount restricting means A container provided on the upstream side in the moving direction of the object to be processed with respect to the filter body, and a level regulating device for regulating the height level of the object to be processed existing in the container and on the filter body, and A solid-liquid separation device connected to the first plate group or the second plate group so as to move in parallel with the first plate group or the second plate group.   The level regulating device includes a discharge pipe having a discharge port for a processing object opened in the container, and is configured to discharge an excessive processing object in the container to the outside of the container through the discharge pipe. The solid-liquid separation device according to claim 1.   The solid-liquid separator according to claim 2, wherein the height position of the discharge pipe is adjustable.

Images