JPS607929B2 - Gap maintaining device between filter surfaces of filter plate of filter press - Google Patents

Description

TECHNICAL FIELD The present invention relates to a gap retaining device for maintaining a constant gap between the furnace surfaces of furnace plates of a filter press.

Conventional technology Conventionally, in a filter press, a support part protruding in the thickness direction of the furnace plate is provided on the furnace plate surface, and a support part is provided between the support part and the furnace plate surface adjacent to the furnace plate. The supported parts are butted against each other with the furnace cloth interposed therebetween, so as to support a constant distance between the two furnace cloth surfaces.

However, with the structure described above, since the support part is fixed to the furnace surface, the furnace cloth in the part that supports the support part is severely damaged, and the part of the furnace cloth surface where the support part is fixed is also damaged. There was a problem in that this tendency was particularly severe on the furnace surface made of an elastic material of the pressing furnace plate.

In addition, since the support part was integrally provided on the furnace surface of the furnace plate, manufacturing costs increased, and in the case of a squeeze type furnace plate, the support part was fixed to the furnace surface made of an elastic material. In addition to providing mounting holes and the like on the furnace filtration surface, it is also necessary to take the trouble of attaching a support portion, which poses a problem of increasing costs.

Furthermore, in filter presses that are used by replacing furnace cloths with various thicknesses, the support part is fixed, so it is not possible to follow changes in the thickness of the furnace cloth, and the spacing between the furnace surfaces changes each time the furnace cloth is replaced. There was a problem that the supporting force of the furnace filtration surface changed.

OBJECTS OF THE INVENTION An object of the present invention is to solve the above-mentioned various problems, and in order to separate the support part, which has conventionally been fixed to the furnace cloth, from the furnace cloth and the furnace cloth. A filter press furnace that can reduce damage to the furnace cloth, reduce manufacturing costs, and keep the distance between the furnace cloth surfaces constant by following changes in the thickness of the furnace cloth. It is an object of the present invention to provide a gap maintaining device between furnace surfaces of plates.

Structure and Function of the Invention The structure and function of the present invention are such that, in a filter press in which a pair of furnace cloths are interposed between adjacent furnace slopes, each of the furnace cloths is provided with a pair of furnace cloths facing each other between the adjacent stagnation plates. It is characterized by a support member that is removably attached to keep the interval between the furnace surfaces constant.

Effects of the Invention Since the present invention is constructed as described above, the support member can be separated from the furnace surface, and damage to the furnace cloth and furnace surface, particularly in the portion that contacts the support member, can be reduced. In addition, the structure is simple, the number of parts is small, and the manufacturing cost is low.Also, by replacing the support member when the thickness of the furnace cloth changes, the distance between the furnace cloth surfaces can be kept constant. can be maintained, and damage to the furnace surface can be reliably prevented.

Furthermore, by replacing and attaching and detaching the supporting members in various ways as described above, it is possible to change the supporting force against the furnace surface, and to change the weight of the supporting members to change the amount of carts applied to the furnace cloth. Moreover, when the support member is not needed, it can be easily removed. EXAMPLES The present invention will be specifically explained below based on illustrated examples.

Figures 1, 2, and 3 show a normal furnace plate 5, in which 1 is a picture frame, 2 is a furnace filtration surface having uneven grooves, 3 is a raw liquid hole, and 4 is a furnace liquid recovery port, which is a furnace filtration port. The stock solution to be used is from the stock solution holes 3 to 4 above.
As shown in the figure, the furnace fluid that is supplied into the furnace chamber 7 between the furnace cloths 6, 6 interposed between the furnace plates 5, 5 and separated from the furnace bay is collected downward along the furnace filtration surface 2. , the furnace liquid is discharged to the outside of the furnace plate 5 from the furnace liquid recovery port 4.

On the opposing surfaces of each of the furnace cloths 6, protrusions 10, . . . , 1 are provided as supporting members as shown in FIGS.
0 is removably attached.

This protrusion is made by integrally forming a square plate-shaped mounting portion 10a and a truncated conical protrusion 10b, and has a certain degree of elasticity. And the above mounting part 1
Attachment holes 10c, . That is, in FIG. 7, the furnace cloth 6 is inserted into the mounting part 10a from the left side, and the pin member is inserted into the mounting hole 10c from the right side in FIG. 7, and the head of the pin member is installed. It locks around the hole to prevent the pin member from passing through the mounting hole 10c to the left in FIG. , attach the protrusion 10 to the furnace cloth 6. The locking and holding of the protrusion 10 to the oven cloth 6 by this pin member can be easily carried out by releasing the lock between the tip of the pin member and the silk string of the oven cloth 6. Can be removed. It is preferable that each corner of the protrusion 10 be rounded so as not to damage the furnace cloth 6 and the furnace surface 2 of the furnace plate 5. Further, on the furnace surface 2 around the raw solution hole 3 of the furnace plate 5, a flat circular catch plate 2a with no uneven grooves is provided.
, . . . 2a are provided in a well-balanced manner with respect to the furnace surface 2, and the end face of the attachment portion 10a of the protrusion 10 is supported via the furnace cloth 6. The gap maintaining device between the furnace surfaces of the cooling plate 5 constructed as described above operates as follows.

First, a pair of furnace cloths 6 interposed between adjacent furnace plates 5, 5
, 6, the above-mentioned protrusions 10, . Each catch 2 provided in
Directions a - direction h The end faces of the protrusions 10b of each protrusion 10 are made to face each other.

In this state, when the furnace plate 5 is attached as shown by the two furnace plates 5, 5 on the left side in FIG. The end faces of the mounting portions 10a of the furnace plate 5 are placed on the respective seats 2a of the furnace surface 2 of the furnace plate 5 via the furnace cloth 6, and the end faces of the protrusions 10b of the respective protrusions 10 are attached to the respective seats 2a of the furnace surface 2 of the furnace plate 5. The protrusions 10b abut against each other on the end surfaces, and a constant distance W is maintained between the opposing furnace surfaces 2, 2 of the furnace plates 5, 5.

On the other hand, when the furnace plate 5 is connected to the frame as shown by the two furnace plates 5, 5 on the right side in FIG.
The end faces of the protrusions 10b are released from abutting against each other, and the end faces of the mounting portions 10a of the respective protrusions 10 are separated from the seats 2a of the furnace surface 2 of the furnace plate 5.

Note that FIGS. 5 and 6 show the case where a string member is used instead of the pin member.

That is, a protrusion 10 is placed in one section of one mesh of the furnace cloth 6.
, and insert string-like attachment portions 11 such as strings, tapes, or wires into the attachment holes 10c, . It is attached by tying it to cloth 6 or the like. According to the above device, by attaching the protrusions 10 to the furnace cloth 6, the furnace plate 5. Since it can be released from the furnace surface 2 of the furnace plate, there is no need to provide the protrusions 10 on the furnace surface 2 of the furnace plate 5. The surface is not damaged by the projections 10. That is,
When the protrusions 10 are fixed to the furnace surface 2, the same portions of the furnace surface 2 are pressed by the protrusions 10, so that the portions are likely to be damaged. In addition, since the protrusions 10 are detachably attached to the furnace cloth 6, by replacing the protrusions 10 when the thickness of the furnace cloth 6 changes, it is possible to maintain a constant gap between the laminar surfaces, and 2 can be reliably prevented from being damaged, and by changing and attaching and detaching the protrusions 10 in various ways as described above, the supporting force against the furnace surface 2 can be changed,
By changing the weight of the protrusion 10, the load applied to the furnace cloth 6 can be changed. Furthermore, when the projections 10 are not needed, they can be easily removed. In addition, since the protrusions 10, . Therefore, the withstand pressure near the stock solution hole 3 can be increased. Furthermore, since the protrusions 10 are brought into contact with the seats 2a of the furnace surface 2 of the furnace plate 5, the protrusions 10 can be positioned easily and reliably. Note that the present invention is not limited to this example, and can be implemented in various other forms.

For example, instead of the normal oven plate 5, a compressed oven plate 14 may be used as shown in FIGS. 8, 9, and 10. In addition, the 8th, 9th,
In Figure 10, 15 is a pressed membrane forming the furnace filtration surface, 16, 16
is the furnace plate guide beam. Further, the present invention is not limited to a furnace plate of a type in which the raw solution is supplied from inside the furnace filtration surface, but may be a furnace plate of a type in which the raw solution is supplied outside the furnace filtration surface.

Furthermore, instead of having the protrusions 10 supported by the seats 2a of the furnace surface 2, the structure of the furnace surface 2 can be simplified by having the projections 10 supported by the furnace surface 2, or conversely, the structure of the furnace surface 2 can be simplified. By further providing a recessed portion in the seat 2a of the surface 2 and fitting the protrusion 10 into the recessed portion, the protrusion 10 may be positioned with respect to the furnace surface 2 more reliably. Moreover, instead of making the opposing protrusions 10 and 10 butt into each other, one protrusion having a thickness that is approximately the same as the interval W between the furnace surfaces is attached to the furnace cloth 6, and this protrusion and each furnace A constant distance W may be maintained between the two furnace surfaces by abutting against the surface.

Further, instead of integrally forming the protrusion 101, the protrusion 10b and the attachment part 10a may be manufactured separately. For example, as shown in FIG. 11, the protrusion 12 may be constructed by ironing the protrusion 12b to the recess 12c of the attachment portion 12a made of semi-hard rubber or plastic, or conversely, A concave portion may be provided in the protrusion, and a protrusion provided on the attachment portion may fit into the concave portion to form a protrusion. In this way, when the protrusions butt each other, overload can be absorbed by the elastic deformation of the elastic mounting portion, and no overload is applied to the furnace cloth 6 or the furnace plate 5. Further, the shape of the protrusions 10 is not limited to a circular cross section, but may have an arbitrary cross-sectional shape such as an ellipse or a square, and the number of protrusions 10 may also be arbitrary.

Furthermore, instead of attaching the protrusions 10 to the opposing oven cloth sides of the oven cloth 6, the protrusions 10 may be attached to the oven plate side of the oven cloth 6, as shown in FIG. Further, as the pin member for attaching the protrusion 10 to the furnace cloth 6, any means such as bolts, screws, pins, etc. that can attach the protrusion 10 to the furnace cloth 6 may be used. A protrusion 13 having a base portion 13a made of rubber or plastic, for example, sandwiching the cloth 6 therebetween.
b and a mounting base 1 made of rubber or plastic, for example.
3c facing each other, and the base part 13a of the protrusion 13b and the mounting base 1 are bonded by heat fusion, adhesive, or other appropriate means.
The protrusion 13 may be attached to the furnace cloth 6 with the furnace cloth 6 sandwiched between the protrusions 13 and 3c. In any of the embodiments, with the above-described configuration, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a furnace plate, FIG. 2 is a cross-sectional view taken along the line X-X of FIG. 1, and FIG. 3 is a cross-sectional view taken along the Y-Y line of FIG. 4 is a vertical cross-sectional side view of essential parts of the furnace plate, etc., FIG. 5 is an enlarged front view showing the state in which the protrusions are attached to the furnace cloth, FIG. 6 is a side view of FIG. 5, and FIG. The figure is a longitudinal cross-sectional side view of the protrusion, FIG. 8 is a partially cutaway front view showing the relationship between the pressing furnace plate and the furnace cloth, etc., showing another embodiment of FIG. 1, and FIG. 9 is the same as FIG. 4. 10 is a vertical cross-sectional side view of the main part showing another embodiment of FIG. 9, and FIG. 11 is a main part longitudinal cross-sectional side view of another embodiment of FIG. 7. Part longitudinal section side view, 12th
This figure is a vertical cross-sectional side view showing still another embodiment of FIG. 7. 2... Furnace filtration surface, 5... Furnace plate, 6...
・Heart cloth, 10, 12, 13...Protrusion, 14...
...Press type hearth plate. Figure 1 Figure 2 Figure 3 Figure 4 Figure 12 Figure 5 Figure 6 Figure 7 Figure 10 Figure 11 Figure 8 Figure 9

Claims (1)

[Claims] 1. A filter press in which a pair of filter cloths are interposed between adjacent filter plates, and each of the filter cloths is provided with a support that abuts against each other and maintains a constant distance between the opposing filter surfaces between the adjacent filter plates. A gap maintaining device between filter surfaces of a filter plate of a filter press, characterized in that the members are detachably attached.