JPS6015363B2 - Filter cloth winding device for filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an improvement in a furnace cloth winding device for winding furnace cloth below a furnace plate in a filter press.

Prior Art Conventionally, in general, the process of attaching the furnace plate and opening the frame is repeated.
In a filter press that repeats furnace filtration and collection of furnace liquid and furnace bamboo, when the furnace plate is opened, the furnace cloth is run in order to clean the furnace cloth and remove the furnace sludge adhering to the furnace cloth. It is known that the furnace cloth is wound up on a furnace cloth winding device supported below the furnace plate.

The above-mentioned furnace cloth winding device is constructed by clamping the lower end of the furnace cloth on the surface of a cylindrical furnace cloth winding roller with a locking rod and fixing it with bolts.
The oven cloth is fixed to the oven cloth take-up roller, and a coil spring is provided in the oven cloth take-up roller to bias the oven cloth take-up roller in the direction of winding the oven cloth.

However, in the above-mentioned oven cloth winding device, since a coil spring is provided in the oven cloth winding roller, it is difficult to assemble the oven cloth take-up roller, and it is difficult to remove and attach the oven cloth to the oven cloth winding loaf. In addition, it is difficult to adjust the rotation biasing force of the coil spring for the furnace cloth winding member, and it is difficult to repair or replace it.Furthermore, since the diameter of the furnace cloth winding roller becomes large,
Particularly in the case of a thin furnace plate, there is a problem in that the area occupied by the space below the furnace plate becomes large.

Additionally, when the above-mentioned coil spring is used, the biasing force applied to the furnace cloth may vary between the stretched state and the rolled-up state of the furnace cloth, and this variation in biasing force may cause the furnace cloth to not be pulled uniformly. There was such a problem.

OBJECT OF THE INVENTION The purpose of the present invention is to solve the above-mentioned problems, and by separately providing a furnace cloth winding member and a furnace cloth winding attachment force device for rotationally urging the furnace cloth winding member. The assembly of the furnace cloth winding member is easy, and the work of removing and attaching the furnace cloth to the furnace cloth winding member is easy, and the rotation urging force of the furnace cloth winding member by the spring is easily adjusted and its repair/replacement is easy. Moreover, it is an object of the present invention to provide a cloth winding device for a filter press in which the furnace cloth winding member has a small diameter and can uniformly pull the furnace cloth by constantly applying a constant urging force to the furnace cloth. be.

Structure of the Invention A furnace cloth winding device for a filter press according to a first aspect of the present invention includes a furnace cloth winding member that locks the lower end of the furnace cloth, which is rotatable between a pair of support brackets provided below a furnace plate and a furnace frame. A constant torque spring is attached and is biased in a direction of free winding;
A first winding shaft for freely winding the constant torque spring, and a second winding shaft connected to one end of the furnace cloth winding member so as not to be relatively rotatable, the spring being wound when winding the furnace cloth. 2nd above
The present invention is characterized in that a furnace cloth winding force device for winding the winding cloth from the winding shaft to the first winding shaft is provided on one side of the support bracket.

A furnace cloth winding device for a filter press according to a second invention is such that the furnace cloth winding member in the furnace cloth winding device according to the first invention is composed of a slit forming member and a furnace cloth stopper twill. a slit forming member having a slit through which the lower end of the furnace cloth is passed; and a furnace cloth stopper that is attached to the lower end of the furnace cloth and is locked to the slit forming member with the furnace cloth passing through the slit of the slit forming member. A furnace cloth winding member consisting of a rod is rotatably mounted between a pair of support brackets provided below the furnace frame of the furnace plate, and a constant torque spring biased in the direction of free winding; a first winding shaft for freely winding the winding cloth, and a second winding shaft connected to one end of the winding cloth winding member so as not to be relatively rotatable; The present invention is characterized in that a furnace cloth winding biasing device for winding the winding cloth from the winding shaft to the first winding shaft is provided on one side of the support bracket.

Note that the slit forming member may be constituted by, for example, a furnace cloth winding cylinder having a slit that penetrates the lower end of the furnace cloth, or a certain gap provided between a pair of shank members that allows the lower end of the furnace cloth to pass through. It may also be configured as follows. EXAMPLES The present invention will be specifically explained below based on illustrated examples.

In the filter press shown in Fig. 1, 1 is a front stand, 2 is a rear stand;
Side beams passed between both sides of 2, 4,...,
Reference numeral 4 denotes a furnace plate that can move forward and backward with the guidance of side beams 3, 3; 5 is a movable plate that is driven forward and backward by a drive cylinder 6 supported on the rear stand 2; the movable plate 5 is moved backward; It is possible to frame each furnace plate 4 at the same time.

On the other hand, reference numerals 7 and 7 designate a pair of left and right driving balls having a polygonal cross section, which are supported between the upper sides of the front and rear stands 1 and 2, respectively, and are supported on the upper part of each furnace plate 4, as shown in FIG. It is connected to a pair of left and right take-up pulleys 8, 8, which are rotatably supported on both sides above the oven plate 4, respectively, by means of support sections 11, 11 (see Fig. 1). The pair of left and right drive shafts 7, 7 can be driven forward and reverse by forward and reverse driving of a motor 9 with a speed reducer installed at the top.

The left and right take-up pulleys 8, 8 are wrapped with hanging cords 10 whose one end is locked to each take-up pulley 8, and the other end is a furnace cloth hanging rod 13 which hangs and supports the upper end of the furnace cloth 12. It is fastened to the end of the

Reference numerals 14 and 14 denote a pair of left and right support brackets attached to the lower surface of the lower part of the furnace frame of the furnace plate 4, and between the support brackets 14, 14 that protrude downward, a furnace cloth winding member 15 is installed at the center of the upper end thereof. It is rotatably mounted, and guide rollers 16, 16 are supported below both sides of the oven cloth winding member 15 in the thickness direction of the oven plate 4.

Note that 17 is a cleaning pipe installed between the lowermost parts of the support brackets 14, 14, and this cleaning pipe 17 is provided with a large number of cleaning nozzles 18, . . . , 18 facing upward. 12 cleanings are performed. As shown in FIGS. 3 and 4, the furnace cloth winding member 15 includes a furnace cloth stopper 19,
It is composed of a furnace cloth winding cylinder 20 as a slit forming member and stoppers 21, 21.

The furnace cloth stopper rod 19 is made of bamboo wood, which is the longest length among the furnace cloths 12.

Then, cuts 22, . A large number of notches 22, . . . are provided at regular intervals in the direction.
. . , 22 are sequentially penetrated with the furnace cloth stopper rods 19 so as to be attached to the lower end of the furnace cloth. Further, as shown in FIG. 5, the furnace cloth winding cylinder 2 is a cylindrical material having a notched groove 23 on its surface as a slit into which the furnace cloth stopper rod 19 can be inserted. , rotating shafts 24, 2 at both ends
4, which are supported by bearings 25, 25 provided on the support brackets 14, 14 as described above.

The above-mentioned stop flange 21 is provided at both ends of this furnace cloth winding cylinder 20,
21 to cover both ends of the notched groove 23.
Both ends of the furnace cloth stopper 19 inserted into the cylindrical body 20 are locked to prevent it from coming off. A furnace cloth winding biasing device 27 is provided on one side of the support bracket 14 via brackets 26 , 26 .

As shown in FIGS. 6 and 7, this furnace cloth winding biasing device 27 includes a constant torque spring 29 and first and second winding shafts 30 and 31 in a case 28. The constant torque spring 29 has a property of exhibiting a constant torque regardless of the amount of deflection, and is biased in the free winding direction.

The first winding shaft 30 is supported on the lower part of the case 28,
The constant torque spring 29 is wound freely. Further, the second winding shaft 31 is mounted on the upper part of the case 28 with respect to the first winding shaft 30, and the shaft 31a is cupped on one of the rotating shafts 24 of the above-mentioned furnace cloth winding cylinder 15. They are connected by a ring 32 so as to be relatively unrotatable, and the radius of the winding portion 31b is larger than the free winding radius of the constant torque spring 29. One end of the constant torque spring 29, which is wrapped in the first winding part 30, is fixed to the winding part 31b of the second winding shaft 31 with screws 33. The constant torque spring 29 is made to be able to be wound in a reverse direction (in the direction of unwinding the cloth winding cylinder of the cloth winding cylinder), so that when unwinding the cloth winding cylinder, the cloth winding cylinder 2
It is designed to apply a rotation biasing force in the winding direction of the winding cloth. Now, as the movable plate 5 moves forward, the furnace plates 4,...,4
When they are all vertically attached to the front stand 1 side, the undiluted solution supply pipe 34 supported on the front stand 1 is connected to the undiluted solution supply V inlet of each furnace plate 4 and the undiluted solution supply fittings 35 attached to each furnace cloth 12.
(See FIG. 2) The raw solution press-injected between the furnace cloths 12, 12 is separated into furnace clear liquid and furnace liquid, and the separated furnace liquid is recovered to perform furnace cleaning.

After one furnace passing process is completed, the movable plate 5 is moved back, and the furnace plates 4 are all set together at a constant distance from each other.

At the same time as the frame is opened, the separated furnace sludge, still in the form of a cake, falls due to gravity. At the stage when the furnace has fallen, the furnace cloth 12
is stretched slightly away from the furnace plate 4. At this stage, the motor 9 is driven in the rewinding direction, and the hanging strip 10 is wound around the take-up pulleys 8, 8 by the left and right drive shafts 7, 7.
When the cloth winding member 15 is unwound, the constant torque spring 29, which is reversely wound around the second winding shaft 31, rotates the cloth winding member 15 in the winding direction by the rotation urging force that tries to restore the first winding shaft 3. . Due to the winding rotation of the winding section village 15 due to this biasing force, the furnace cloths 12, 12 on both sides of each furnace plate 4 are rotated 1800 times by the guide roller 16, and both the furnace cloth winding member 1
5. The cleaning of the furnace cloth 12 is performed at the same time as the winding of the furnace cloth 12 or during the next winding of the furnace cloth 12. The furnace cloth 12,1 once wound up on the furnace cloth winding member 15
2 then drives the winding pulleys 8, 8 in the winding direction by the winding drive of the motor 9, and winds the suspension strings 10, 10 connected to the upper end side of the furnace cloth 12 around the winding pulleys 8, 8. Take it and
While winding the constant torque spring 29 in the opposite direction from the first winding shaft 30 onto the second winding shaft 31 connected to the silk cloth winding member 15, the furnace cloths 12, 12 are wound up to a certain position, and the next winding process is started. Prepare for. Note that the present invention is not limited to this example, and can be implemented in various other ways.

For example, a furnace cloth stopper rod 19 may be provided for each furnace cloth 12, as shown in FIG. Further, as shown in FIG. 9, the lower end of the furnace cloth 12 is closed in a bag, a round twill 36 is inserted as a furnace cloth stopper into the bag 12a, and the furnace cloth winding cylinder 20 is closed.
It may also be held in place to prevent it from coming out.

Furthermore, as shown in FIG. 10, instead of the furnace cloth winding cylinder and the stopper, they are arranged side by side with stoppers 37 at regular intervals, and their ends are connected to each other to form support brackets 14, 14.
A pair of winding rods 38, 38 may be provided as a pair of camphor members that rotate integrally with respect to the winding rod.

The furnace cloth 12.1 is inserted into the slit 37 between the winding rods 38, 38.
2, and the round twill 36 attached to the lower end of the furnace cloth 12, 12.
．． 36 is locked to both winding rods 38, 38 via the furnace cloths 12, 12 by the furnace cloth winding force, and the furnace cloths 12, 12 are wound with the round rods 36, 36 and the winding rods 38, 38. You may choose to take it. In this way, the structure of the slit forming member becomes extremely simple. Effects of the Invention The first invention includes a furnace cloth winding attachment biasing device provided on one of the pair of support brackets below the furnace frame of the furnace plate provided with the furnace cloth winding member, and a constant torque spring of the furnace cloth winding device. Since the cloth winding member is biased in the winding direction of the furnace cloth, the assembly of the furnace cloth winding member is easy, and the work of removing and attaching the furnace cloth to the furnace cloth winding material is easy, and it is made of a constant torque spring. Therefore, it can be made smaller and have a stronger biasing force than a coil spring, while it is easy to adjust the rotating biasing force of the furnace cloth winding member, and to repair and replace it easily. Since a constant biasing force is always applied to the furnace cloth, there is an advantage that the furnace cloth can be pulled uniformly.

Furthermore, in addition to the advantages of the first invention, the second invention provides a structure in which the furnace cloth stopper attached to the lower end of the furnace cloth is engaged with the slit forming member to fix the lower end of the furnace cloth to the furnace cloth winding member. Therefore, there is an advantage that the furnace cloth can be very easily locked and unlocked to the furnace cloth winding member, and the structure of the furnace cloth winding section can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a side view of a filter breath according to an embodiment of the present invention, FIG. 2 is a front view of the furnace cloth and furnace plate shown in FIG. 1, and FIG. 3 is a front view of the furnace cloth and furnace plate shown in FIG. 2. A vertical cross-sectional front view showing the lower part of the
FIG. 4 is a front view showing the lower end of the furnace cloth, FIG.
7 is a vertical sectional view taken in the direction of the arrow in FIG. 6, and FIGS. 8, 9, and 10 are sectional views showing other embodiments. 4... Furnace plate, 12... Furnace cloth, 14...
Support bracket, 15... Furnace cloth winding member, 19
... Furnace cloth stopper twill, 20 ... Furnace cloth winding cylinder, 21 ...
Stopper, 22...notch, 23...notch groove, 27...furnace winding attachment force device, 29...
...Constant torque spring, 30...First winding shaft, 31
...Second take-up shaft, 37...Slit. Figure 1 Figure 10 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8 Figure 9 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1. A filter cloth winding member with the lower end of the filter cloth locked is rotatably mounted between a pair of support brackets provided below the bottom of the filter plate and filter frame, and is biased in the direction of free winding. a first winding shaft around which the constant torque spring is freely wound; and a second winding shaft connected to one end of the filter cloth winding member so as not to be relatively rotatable. A filter cloth winding device for a filter press, characterized in that a filter cloth winding biasing device for winding the spring from the second winding shaft to the first winding shaft when winding the cloth is provided on one side of the support bracket. . 2. A slit forming member having a slit that penetrates the lower end of the filter cloth, and a filter cloth stopper that is attached to the lower end of the filter cloth and is locked to the slit forming member with the filter cloth passing through the slit of the slit forming member. A filter cloth winding member consisting of a rod is rotatably mounted between a pair of support brackets provided below the filter frame of the filter plate, and a constant torque spring biased in the direction of free winding; a first winding shaft for freely winding the filter cloth, and a second winding shaft connected to one end of the filter cloth winding member so as not to be relatively rotatable; A filter cloth winding device for a filter press, characterized in that a filter cloth winding force device for winding the filter cloth from a winding shaft to a first winding shaft is provided on one side of the support bracket. 3. A filter cloth winding cylinder having a slit into which the filter cloth retaining rod can be inserted, and a retainer configured to engage both ends of the filter cloth retaining rod inserted into the cylinder through the slit of the cylinder. The filter cloth winding device according to claim 2, wherein the slit forming member is constituted by a holding stopper. 4 The slit is formed between a pair of rod members, and the slit forming member is constructed by connecting the ends of both rod members to rotate integrally with respect to the support bracket, and the filter cloth winding is attached. The filter cloth winding device according to claim 2, wherein the filter cloth retaining rod is locked to both rod members by force via the filter cloth.