JPS5933446Y2 - Single filter press - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a vertically moving furnace cloth type single filter press in which a plurality of furnace plates are suspended vertically.

The conventional single filter press of this type is the JP-A-48
As described in Japanese Patent Publication No. 91665 and Japanese Patent Application Laid-open No. 4891666, a method in which a pair of furnace cloths is lowered into a single space between each furnace plate, and then reversed and raised by a pair of guide rollers at the bottom of the furnace plate. It is known that
With this type of furnace cloth, the upper and lower flow mounting bars, the liquid supply plate, and the four furnace cloths cross each other when the furnace cloth is running, so the furnace plate, the furnace cloth mounting bars, and the liquid supply plate may come into contact with each other, and the furnace cloth mounting bars may come into contact with each other. There was a drawback that the cloth mounting bar could be bent or the furnace cloth could be damaged due to contact.

For this reason, it is necessary to adjust the intervals between the furnace plate, furnace cloth mounting bar, liquid supply plate, and furnace cloth before operation, but since there are many parts and the structure is complex, adjustment is time-consuming and problematic. Ta.

On the other hand, in order to avoid the above-mentioned contact, the distance between the furnace plates during opening has been increased, but increasing the distance between furnace plates increases the length of the equipment, especially in equipment with a large number of furnace plates. The disadvantage is that a cylinder is required, increasing equipment costs and installation space.

Therefore, in order to solve these conventional drawbacks, the present applicant has developed a single filter press of the type in which a furnace cloth is moved up and down in a see-saw manner between furnace plates, as described in Japanese Patent Application Laid-open No. 52-122968. Even in this single filter press, the furnace cloth connecting rod and two furnace cloths run between the furnace plates, so the raw solution supply nozzle and the furnace cloth connecting rod inserted between the furnace plates from the side of the P plate are connected. As shown in FIG. 2 of the above-mentioned publication, it is necessary to provide a stock solution supply nozzle with an oscillating structure that can freely move in and out between the furnace plates, which makes the structure complicated and takes time to adjust.

Therefore, if a furnace cloth connecting rod having a structure that also has a concentrate supply mechanism is provided as shown in Figure 3 of the above publication without providing a separate concentrate supply nozzle, the thickness of the furnace cloth connecting rod will become thicker. has the disadvantage that the spacing between furnace plates must be increased,
Furthermore, since the stock solution supply nozzle is fixed to the furnace cloth and travels together with the furnace cloth, there is a drawback that the resting position shifts due to expansion and contraction of the furnace cloth, and it takes time and effort to adjust the positions of the furnace plate and the door plate.

The present invention was completed with the aim of creating a single filter press with a vertically moving furnace cloth that does not have the above-mentioned drawbacks.Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

Reference numeral 1 denotes a supported door plate in which a support 3 having a length approximately equal to the height of the door plate body is fixed to the upper part of the hearth plate body; 2 is a non-supporting hearth plate having approximately the same shape as the hearth plate body; and pillarless hearth plate 2
and the constellations 32, 33, and 34.

The frame is vertically suspended alternately on rails 36 and 37, which are passed between the front and rear frames (not shown) by means of 35.

Further, below the supported furnace plate 1 and the unsupported furnace plate 2, a long lower roller 6 and a lower roller T, which are approximately equal in length to the width of the furnace cloth to be described later, are provided in parallel. A rotating shaft 10 is attached to the upper part via pedestals 8 and 9, upper sprockets N1 and 12 are attached to both ends of the rotating shaft 10, and an upper roller 13 is rotatably attached to the middle part,
Further, lower sprockets 14 and 15 provided on both sides of the door plate 1 with supports and the upper sprocket 1112 are connected by chains 16 and 17.

Furthermore, an endless furnace cloth 4 that is wound around an upper roller 13 and a lower roller 6 provided on the pillared furnace plate 1 and covers both sides of the pillared door plate 1 has an upper roller 13 of the pillared furnace plate 1 and a blank. Lower roller 7 provided on support furnace plate 2
Both ends of the U-shaped furnace cloth 5 that is wound around the upper roller 1 to cover both sides of the supportless furnace plate 2 are connected to the upper roller 1 by a furnace cloth connecting rod 18.
3 and the furnace cloth connecting rod 18
and chains 16 and 17 are connected.

Furthermore, the lower sprocket 14 is connected to a sprocket rotating shaft 22 on which a bevel gear 19 is attached, and the bevel gear 19 is connected to a bevel gear 20 rotatably attached to a seat 32, and the bevel gear 20 is connected to a drive device 21 for opening and closing the oven plate. Sometimes they are slidably connected.

Further, the lower sprocket 15 is connected to the sprocket rotation shaft 23.
When the endless furnace cloth 4 is rotated alternately in forward and reverse directions by driving the lower sprocket 14 in forward and reverse directions alternately by the drive device 21 through the bevel gears 19 and 20, the U-shaped furnace cloth 5 is rotated. At the same time, they are moved up and down alternately in a seesaw pattern.

Note that the single filter press of the present invention is not limited to the presence or absence of a squeezing mechanism, but when a squeezing mechanism is attached, it is preferable to equip the columnless furnace plate 2 with the squeezing mechanism. The device is lower sprocket 1
The structure is such that only one of the lower sprockets 14 of 4 and 15 is driven, but the lower sprockets 14 on both sides
, 15 may be driven simultaneously.

Furthermore, the rotating shaft 10 and the upper sprockets 11 and 12 attached to the upper part of the support column 3 may also be driven via bevel gears or the like.

Further, the connection position between the endless furnace cloth 4 and the U-shaped furnace cloth 5 by the furnace cloth connecting rod 18 may be above the upper position of the furnace plate body, but the overall height of the filter press may be lowered by shortening the support 3. At the same time, in order to prevent the furnace cloth connecting rod 18 from moving in and out between the furnace plates, it is preferable to connect the endless furnace cloth 4 and the U-shaped furnace cloth 5 at the upper end of the upper roller 13. The cloth 5 may be a furnace cloth connected to the endless furnace cloth 4 for each pillarless furnace plate 2 as described above, or a saw cloth wound in a meandering manner around the pillarless furnace plate 2 of the side rod. It may be.

Furthermore, the endless furnace cloth 4 and the U-shaped furnace cloth 5 may be made of a single piece of cloth, but they may also be made of several pieces of furnace cloth connected by sewing, magic fasteners, joints, etc. For example, as shown in FIG. 5, the endless furnace cloth 4 and the U-shape connect the portion of the cloth 5 that is always above the upper end of the furnace plate body, that is, the non-filtering portion, and the portion that is below, that is, the filtering portion, at a joint 41. If they are connected with each other and formed using separate furnace cloths, there is no need to replace the entire furnace cloth when the filtration section wears out, and only the filtration section can be replaced, reducing costs. can be achieved.

In addition, in this invention, a chain and a sprocket were used as the medium for moving the furnace cloth, but the chain is a string-like medium, and the upper and lower sprockets transfer rotational movement to the string-like medium. Of course, as long as it is a rotating body that conducts power, a timing belt and a wheel, for example, may be used.

In this structure, during dehydration processing, the endless furnace cloth 4 and the U-shaped furnace cloth 5 are supplied by the stock solution supply nozzle 24 inserted between the closed supported furnace plate 1 and the unsupported furnace plate 2.
If the undiluted solution is supplied between them, the undiluted solution will pass through the undiluted solution supply port 39 provided protruding from the side surface of the supported furnace plate 1 and the non-supported furnace plate 2.
40 and the undiluted solution supply port 25 of the undiluted solution nozzle 24 to the communication port formed when the plate is closed, and is supplied between the two furnace cloths through a nozzle circuit 26 provided in the undiluted solution supply nozzle 24 and perpendicular thereto, and The filtrate filtered by both oven cloths passes through the liquor groove 28 provided on the filtration surfaces of the supported door plate 1 and the unsupported oven plate 2, and is collected in the filtrate collection groove 29, t'l, P liquid is discharged. As it is discharged to the outside of the machine through the nozzle 27, a cake is gradually formed between the two furnace cloths.

After the dehydration treatment, the vertically suspended pillared door plates 1 and non-propagated furnace plates 2 are opened alternately, and the lower sprocket 1
4, the upper sprocket 11 connected by the chain 16 starts to rotate clockwise, and the furnace cloth connecting rod 18 attached to the chains 16, 17 rotates clockwise along the chains 16, 17. It begins to rotate and is pushed downward.

At this time, since the endless furnace cloth 4 and the U-shaped furnace cloth 5 are connected to the chains 16 and 17 by the furnace cloth connecting rod 18, the endless furnace cloth 4 rotates as the chains 16 and 17 rotate clockwise. It rotates clockwise between the upper roller 13 and the lower roller 6, and at the same time, the U-shaped furnace cloth 5 located on the left side of the pillarless furnace plate 2 is pushed down by the upper roller 13 and the lower roller 7, while the pillarless furnace cloth 5 is pushed down. The U-shaped furnace cloth 5 located on the right side of the supported furnace plate 2 is pulled upward, and by this action, the endless furnace cloth 4 and the U-shaped furnace cloth 5 on the right side of the supported door plate 1 shown in FIG. The cake A in between is pushed down as the oven cloth moves, and as shown in FIG.
, 7, when it is turned over, it completely separates from the furnace cloth and falls downward.

On the other hand, the endless furnace cloth 4 and U on the left side of the pillared door plate 1
The cake B between the shaped furnace cloth 5 is pulled upward as the furnace cloth moves and is held there, so when the cake A on the right side of the supported furnace plate 1 has completely fallen, the drive device 21 is rotated. , and then rotate the lower sprocket 14 counterclockwise via the bevel gears 19 and 20 in the opposite direction using the drive unit 21 to perform the reverse operation to the above, and move the cake B on the left side of the supported door plate 1. During this time, the furnace cloth connecting rod 18 remains connected to the supported door plate 1 despite the movement of the furnace cloth.
Since there is no intervention between the furnace plate main body and the unsupported furnace plate 2, the gaps between the furnace cloth and the filtrate supply nozzle and between the furnace cloth and the furnace plate can be reduced.

As is clear from the description of the above embodiments, the present invention rotates the endless furnace cloth connected by the chain and the Sawano connecting rod alternately in the forward and reverse directions by alternately rotating the lower sprocket or the upper sprocket in the forward and reverse directions. U
Since the character-shaped furnace cloth is moved up and down alternately in a seesaw manner, the furnace cloth connecting rod does not intervene between the furnace plates as the furnace cloth moves, and therefore the furnace cloth and the raw solution supply nozzle are Just by providing a small amount of space between the furnace cloth and the furnace plate and between the furnace cloth and the furnace plate, the furnace cloth and the furnace plate can be moved like the conventional method.
There is no risk of the furnace cloth connecting rod, liquid supply plate, and saw cloth coming into contact with each other, and the distance between the furnace plates can be kept small.The furnace cloth running structure is very simple, so failures are extremely rare and adjustment is not required. It has the advantages of this kind of filter press, and has great practical value as it eliminates the drawbacks of the conventional single filter press.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention, FIG. 2 is a partially cutaway front view, and FIG. 3 is a longitudinal side view.
FIG. 4 is a longitudinal side view showing a different embodiment, and FIG. 5 is a longitudinal side view showing another embodiment of the present invention. 1... Door plate with support, 2... Hearth plate without support, 3... Support, 4... Endless furnace cloth, 5... U-shaped F cloth, 6.7...lower roller 0...rotation shaft, 11°12...
...Upper sprocket, 13...Upper roller 14.15...Lower sprocket, 16°17
...Chain, 18... Furnace cloth connecting rod.

Claims (1)

[Scope of utility model registration request] A lower roller 6 and a lower roller 7 are respectively provided below the supported furnace plate 1 and the unsupported furnace plate 2 of a single filter press in which the supported furnace plate 1 and the unsupported furnace plate 2 are vertically suspended alternately; Rotating shaft 1 attached to the upper end of the pillared door plate 1
0 has upper sprockets 11 and 12 attached to both ends thereof, and an upper roller 13 rotatably attached to the middle part thereof, and the upper sprockets N1 and 12 are connected to the lower sprockets 14 and 15 provided on both sides of the pillared door plate 1. The endless furnace cloth 4 that is wound around the upper roller 13 and the lower roller 6 and covers both sides of the pillared door plate 1 is connected to the upper roller 13 with chains 16 and 17.
The U-shaped furnace cloth 5, which is wound around the lower roller 7 and covers both sides of the supportless furnace plate 2, is attached to both ends of the U-shaped furnace cloth 5 so as to move up and down alternately like a seesaw with the forward and reverse rotation of the endless furnace plate 4. The furnace cloth connecting rod 1 is located above the upper end of the support furnace plate 2.
8, and the furnace cloth connecting rod 18 and the chains 16, 17 are connected.