JPH0611368B2 - ▲ Ro ▼ Plate type ▲ Ro ▼ In a machine - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

TECHNICAL FIELD The present invention relates to a method and a device capable of controlling the supply of the undiluted solution to an excess chamber in a plate type machine to prevent the plate from being deformed and damaged, to make the slag thickness uniform and to make the overtime constant.

[Prior art]

Conventionally, the undiluted solution supply in a plate type machine equipped with a plate with or without a frame is performed by aligning the plates under pressure to form a series of undiluted solution supply holes formed by a feed material mounted in the center of the plate. The undiluted solution was pressure-fed to each chamber, and thereby the undiluted solution was supplied from the gap between the feed materials to the respective over chambers (see FIG. 11).

[Problems to be Solved by the Invention]

In the case of undiluted solution, the excess near the undiluted solution supply hole is delayed because it is passed from the part close to the cloth, but in general, there is a time lag in the progress of the overrun in each chamber due to clogging of the cloth. Of. In this case, as shown in FIG.
In an excessively advanced chamber, the part A is left in a solidified state,
In the excess chamber where the excess is delayed, the part B is still in the unflowing state. However, since the excess is continued until the excess of the B section is completed, when the supply of the undiluted solution is further continued, the supply pressure applied to the B section having a large sludge state volume becomes higher than the supply pressure applied to the A section. That is, since the parts other than the part A are in a solidified state, the amount of the stock solution to be injected is small, so that the attempt to press the part into the part B is made, so that the pressure in the excess chamber, which is delayed, becomes high. Therefore, there is also a dangerous situation in which the excess chamber on the side of the section A, which is excessively delayed, strongly presses the excess chamber on the side of the portion B, which bends the respective plates and damages the plates. It should be noted that it is not possible to end the excess with the portion B as shown in FIG. 11 being left because the water content of the slag becomes uneven. Therefore, the present invention provides a control method and apparatus that can keep the pressure of each excess chamber uniform to prevent the plate from being deformed and damaged, and can be finished in a certain excess time to make the slag thickness and moisture content uniform. To do.

[Means for Solving the Problems]

Therefore, in the method invention, a large number of plates are aligned under pressure with or without a frame, and the stock solution is forcedly fed from one end side to a series of stock solution supply holes formed by the center feed material of the plate. Normally, the undiluted solution is over-supplied to the respective over chambers from the branch openings of the series undiluted solution supply path, and since the over-states of the adjacent over chambers are different, the room pressure increases due to the undiluted solution supply pressure. The supply of the undiluted solution to the chamber is stopped at a small amount by narrowing or closing the branch opening, and the undiluted solution supply pressure to the other excess chamber pressed by the one excess chamber expands the branch opening. This is to increase the pressure and maintain the pressure balance between the excess chambers. Further, one of the inventions of the apparatus is one in which a large number of plates are aligned under pressure with or without a frame, and a feed material for supplying a stock solution is attached to the center of each plate, and The fitting outer cylinder that communicates is formed on one side, and the fitting inner cylinder that fits on the fitting outer cylinder is formed on the other side to form a feed material. Each plate is equipped with a fitting inner cylinder of adjacent feed material so that they can be fitted together.When the plates are aligned with each other, they slightly overlap each other. On the other adjacent over-chamber side, a branch hole having a large overlapping opening is provided through each of the fitting outer cylinder and the fitting inner cylinder. Still another device invention is one in which a large number of plates are aligned under pressure with or without a frame, and a feed material for supplying an undiluted solution is attached to the center of each plate. A flesh elastic ring is provided around the outer periphery of the stock solution supply hole, and a hard ring is fixed to the end surface of the elastic ring, and when the elastic ring is compressed, the hard protrusions protruding from the hard ring are located at different positions on both sides. The structure is provided in the ring layers on both sides.

[Action]

In the method invention, the stock solution is supplied to the respective excess chambers through the branch openings of the series of stock solution supply passages which are continuously formed by the continuous feed material, but the difference in the clogging state of the cloths, etc. Therefore, the overprogression status of the adjacent overrooms is often different. In this case, when the undiluted solution is further supplied to the excess chamber in which one excess is delayed and the pressure in the chamber is increased to press the excess chamber in which the other excess is advanced, branching to one excess chamber is performed. By narrowing or closing the opening, the supply of the undiluted solution is stopped in a small amount to prevent an increase in the room pressure, and the branch opening to the other excess chamber pressed by the one excess chamber is expanded. The room pressure is increased by applying the stock solution supply pressure.
On the other hand, if the pressure in the other excess chamber becomes too high, one of the excess chambers will be pressed. In this case, by narrowing or closing the branch opening to the other excess chamber, a small amount of undiluted solution is supplied. The chamber pressure is stopped to prevent an increase in the room pressure, and the room pressure is increased by expanding the branch opening to one of the excess chambers and applying the stock solution supply pressure. By repeating this action, the pressure balance between the excess chambers is maintained, the almost uniform volume of the excess chamber is achieved, and the overtime is speeded up constantly, and a slag with a uniform thickness and water content is formed. It is. Further, in the apparatus invention of claim 2, the branch holes penetrating the fitting outer cylinder and the fitting inner cylinder are slightly overlapped with each other in the pressure aligned state of the plates. When the undiluted solution has been supplied and has passed, one undelayed chamber has been delayed, and the undiluted solution has been supplied to the overchamber. As a result of the plate being pressed and the feed material also moving slightly, the polymerization opening of the branch hole that is open in one of the over chambers is narrowed or blocked, and the supply of the undiluted solution is stopped to a small extent. While preventing an increase in pressure, the polymerization opening of the branch hole that opens to the other excess chamber is expanded, so that the room pressure is increased by applying the stock solution supply pressure, and Will overcome the pressing pressure of It's to much. By the pressing movement of this plate, the overlapping opening area of the branch holes is automatically adjusted to maintain the pressure balance between the excess chambers. Further, in the apparatus invention of claim 3, the hard rings on the outer periphery are pressed against each other by the pressure alignment of the plates, and the hard protrusions contained in the respective ring layers project to press the respective hard rings. In order to maintain the above, a gap is provided between the hard rings, and a branch port communicating with the stock solution supply hole is formed in each excess chamber. In this state, the undiluted solution is pumped to pass, but the overdue is delayed, and the undiluted solution is further supplied to one of the over chambers, which increases the pressure in the chamber and causes the overlaid plate to pass. The other excess chamber is pressed. Due to this pressing movement of the plates, the plate spacing of one of the excess chambers is increased, and the elastic rings facing each other are restored to bring them into close proximity or pressure-bonding. For this reason, the branch port between the hard rings is narrowed or closed, and the supply of the stock solution is stopped or stopped to prevent the increase of the room pressure. On the other hand, in the other excess chamber, the pressing movement of the plate causes the hard protrusion to further strongly press the corresponding hard ring to widen the branch port between the hard rings. Therefore, by strongly applying the undiluted solution supply pressure to the other excess chamber, the chamber internal pressure is increased, and the plate is returned to its original position to maintain the pressure balance of both excess chambers.

First Embodiment Hereinafter, the invention of the present apparatus will be described together with the method invention while explaining the details in the illustrated embodiments. FIG. 1 shows a plate type machine with a frame 2 interposed between plates 1. Each plate 1 is covered with a draining plate and a water net 3 and is attached to a mounting hole transparently provided in the center thereof. The feed material K is attached. As shown in FIG. 2, the feed K has a fitting outer cylinder 4 communicating with the stock solution supply hole continuously on one side, and a fitting inner cylinder 5 fitting on the fitting outer cylinder 4 protruding to the other side. The fitting outer cylinder 4 and the fitting inner cylinder 5 are provided with branch holes 4 respectively.
a and 5a are provided in the circumferential direction so as to communicate with the stock solution supply hole (see FIG. 3). The fitting inner cylinder 5 is formed by connecting a metal cylinder 5c to the tip of a rubber cylinder 5b fixed as shown in FIG. 4, and a guide portion 5d is formed by chamfering the outer edge of the front end of the metal cylinder 5c. Further, a guide portion 4d having a chamfered inner edge of the opening of the fitting outer cylinder 4 guides the contact with the guide portion 5d of the fitting inner cylinder 5. Next, the operation of this example will be described. When the plates are pressure aligned,
The fitting inner cylinders 5 of the respective feed materials are respectively fitted to the fitting outer cylinders 4 of the adjacent feed materials to form a series of stock solution supply paths in communication with each other. In this state, as shown in FIG. 2, the branch holes 4a, 5a of the fitting outer cylinder 4 and the fitting inner cylinder 5 overlap each other in each excess chamber to form a small number of communicating branch openings S. There is. Therefore, when the undiluted solution is pressure-fed from one end side of the machine body to the undiluted solution supply path, the undiluted solution is supplied to the respective excess chambers through the branch openings S and passed through the water passage network 3. However, the over-progressed state of each over-chamber is often different due to the difference in the cloth clogging state and the like. In this case, the fifth
As shown in the figure, the chamber pressure is increased by further supplying the undiluted solution to one of the excess chambers E in which the excess is delayed and the sludge portion Ea remains largely. Then, as the excess progresses and the other excess chamber F with a small amount of mud portion Fa is pressed, the plate 1'interposed by the one excess chamber E is pressed to the other excess chamber F side. Therefore, since the feed material K ′ also moves, the branch hole 4a of the fitting outer cylinder 4 is separated from the branch hole 5a of the fitting inner cylinder 5 and the branch opening S to the excess chamber E is narrowed or closed. As a result, the supply of the undiluted solution to the excess chamber E is stopped for a small amount or to prevent the increase of the room pressure. At the same time, on the side of the excess chamber F, the branch hole 5a of the fitting inner cylinder 5 largely overlaps with the branch hole 4a of the fitting inner cylinder 4 fitted to it due to the movement of the feed material K ', so that the branch closing part is formed. S is greatly expanded and opened. Therefore, the room pressure is increased by applying a large amount of the stock solution supply pressure to the other pressed excess chamber F. As a result, the plate 1'moves to a position where the pressures of the two excess chambers E and F can maintain the balance, and the plate 1'is brought into a balanced state. On the contrary, if the room pressure of the other excess room F becomes too high, the opposite effect occurs. That is, one of the excess chambers E is pressed, and in this case, by narrowing or closing the branch opening S to the other excess chamber F, the stock solution supply is reduced to a small amount or stopped to increase the chamber pressure. In addition to the prevention, the branch opening S to one of the excess chambers E is expanded to apply the undiluted solution supply pressure to increase the room pressure. For this reason, the branch holes 4a and 5a are slightly overlapped with each other in the pressure aligned state of the plates, and due to the movement of the plates, they are closed on one of the over chamber sides and are greatly overlapped on the other adjacent over chamber side. Must be transparently attached to the fitting outer cylinder and the fitting inner cylinder. According to this example, since the pressure balance between the excess chambers is maintained by repeating this action, it is possible to prevent the plate from being deformed and damaged as in the conventional case to cause a dangerous situation. In addition, the volume of the over-chamber becomes almost uniform and the over-time is constantly accelerated, and the slag having a uniform thickness and water content is formed. Further, since the branch holes 4a and 5a are polymerized, precise control can be performed.

Second Embodiment Next, another example of the stock solution supply control device will be described. The feed material shown in FIG. 6 and FIG. 7 has elastic rings 6 made of thick-walled rubber, which are provided around the outer circumference of the stock solution supply hole, at both end surfaces of the feed body Ka which is provided with the stock solution supply hole. A metal hard ring 7 is fixed to the end surface of the elastic ring 6, and when the elastic ring 6 is compressed, the hard projections 8a and 8b project from the hard ring 7 so that the positions on the both sides are different from each other. The structure is provided in the layer. That is,
The protrusions 8a on one side are arranged at four positions at equal intervals, and the protrusions 8b on the other side are arranged at positions sandwiching the opposing protrusions 8a. Both the projections 8a and 8b are provided so as to be slightly retracted from the hard ring 7 (see FIG. 7). In this example as described above, as shown in FIG. 8, the feed material is attached to the plate in a state where the respective hard rings 7 are opposed to each other. Since the rings 7 are pressed against each other to compress the elastic ring 6, the protrusions 8a and 8b are in a protruding state as shown in FIG. As a result, a gap N is provided between the hard rings 7, and a branch port communicating with the stock solution supply hole is formed in each excess chamber. In this state, the undiluted solution is pumped to pass, but the overdue is delayed, and the undiluted solution is further supplied to one of the over chambers, which increases the pressure in the chamber and causes the overlaid plate to pass. The other excess chamber is pressed. Due to this pressing movement of the plates, the plate spacing H in one of the excess chambers increases, and the opposing elastic rings 7 are restored as shown in the right diagram of FIG. Therefore, the branch port of the gap N between the hard rings 7 is narrowed or closed to stop the supply of the stock solution to a small amount or to stop the increase of the room pressure. On the contrary, in the other excess chamber, the pressing movement of the plate causes the protrusions 8a and 8b to further strongly press the opposing hard ring 7 as shown in the left diagram of FIG. 10 to widen the branch opening of the gap N between the hard rings 7. To do. For this reason, by strongly applying the undiluted solution supply pressure to the other excess chamber, the chamber internal pressure is increased, and the plate is returned to its original position to maintain the pressure balance in both excess chambers, as in the previous example. In this example, since the fitting portions are not required for each other, the manufacturing is easy and the control operation can be surely performed. Although this example is configured as described above, the present invention is not limited to this. In the method invention, regardless of the means for forming the branch opening,
It suffices if the branch opening to one of the excess chambers can be narrowed or closed by pressing the plate, and the branch opening to the other excess chamber can be expanded in conjunction. It should be noted that a plate type machine without a frame can be used as the machine. Further, in the device invention of claim 2, regardless of the shape and number of the branch holes penetrating the fitting inner cylinder and the fitting outer cylinder, the device invention of claim 2 is provided. The number and position of the hard protrusions are not limited. Further, the shape of the feed material is also appropriate.

【The invention's effect】

According to the method invention, since the supply of the undiluted solution to each of the over chambers is controlled and the abnormal pressurization to the over chambers is prevented, the pressure balance between the over chambers is maintained, and it is possible to prevent the plate from being deformed and damaged. And safe. In addition, the volume of the over-chamber becomes almost uniform and the over-time is constantly accelerated, and the slag having a uniform thickness and water content is formed. In the apparatus invention according to the second aspect, since the branched holes are polymerized, precise control can be performed. In the device invention according to the third aspect, since the fitting portions are not required for each other, it is possible to surely operate and the manufacturing is easy.

[Brief description of drawings]

 The drawings show an embodiment of the invention of the apparatus. FIG. 1 is a partially cutaway schematic plan view of one embodiment, FIG. 2 is an enlarged longitudinal sectional view of a main part thereof, and FIG. 3 is a fitting outer cylinder thereof. Fig. 4 is a perspective view of the fitting inner cylinder, Fig. 4 is an enlarged vertical sectional view of the fitting inner cylinder, Fig. 5 is an enlarged vertical sectional view of an essential part showing a control operation, and Fig. 6 is a perspective view of an essential part of another example. FIG. 7 is an enlarged vertical sectional view of an essential part thereof, FIG. 8 is a usage state diagram thereof, FIG. 9 is a longitudinal sectional view of an essential part in a pressure aligned state, and FIG. 10 is a longitudinal sectional view of an essential part showing its control operation. 11 and 11 are explanatory diagrams of a conventional over-state. 1: Plate, 2: Frame, 4: Fitting outer cylinder, 5: Fitting inner cylinder, 4a, 5a: Branch hole, S: Branch opening, K: Feed material, E, F: Excess chamber, Ea, Fa : Sludge portion, Ka: Feed material main body, 6: Elastic ring, 7: Hard ring, 8a, 8b: Hard protrusion, N: Gap, H: Plate interval.

Claims (3)

[Claims] 1. A method in which a large number of plates are aligned under pressure with or without a frame and the stock solution is forcedly fed from one end side to a series of stock solution supply holes formed by a feed material for the plate Feeds the undiluted solution to each of the excess chambers from the branch opening of the series of undiluted solution supply paths, and the overpressure of the adjacent over chambers is different. The branch opening is narrowed or closed to prevent the stock solution from being supplied in a small amount or to prevent the increase in the room pressure, and the branch opening to the other excess chamber pressed by the one excess chamber is expanded. A method for controlling the supply of the undiluted solution to the excess chamber in the plate type machine, wherein the pressure of the undiluted solution is increased to increase the room pressure to maintain the pressure balance between the excess chambers. 2. A plurality of plates are arranged under pressure with or without a frame, and a feed material for supplying an undiluted solution is attached to the center of each plate, and the fitting is connected to the undiluted solution supply hole of the feed material. The mating outer cylinder is provided on one side, and the fitting inner cylinder fitted to the mating outer cylinder is formed as a feed material projecting on the other side, and the feed material is adjacent to the fitting outer cylinder. Each plate is equipped with a fitting inner cylinder of the material so that when the plates are aligned with each other, they slightly overlap each other and the movement of the plates closes one over chamber side and closes the other. An undiluted liquid supply control device for an excess chamber in a plate type over-machine, wherein branch holes that largely open on the over chamber side are provided through the fitting outer cylinder and the fitting inner cylinder, respectively. 3. A plurality of plates are arranged under pressure with or without a frame, and a feed material for supplying a concentrated solution is attached to the center of each plate, and a thick elastic material is provided on each side of the feed material. A ring is provided around the outer circumference of the stock solution supply hole, and a hard ring is fixed to the end surface of the elastic ring, and when the elastic ring is compressed, the hard projections protruding from the hard ring are located at different positions on both sides. The apparatus for controlling the supply of the undiluted solution to the excess chamber in the plate type excess machine, which is provided in the ring layer.