JPH079403U - Filter press - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to prevent wrinkles from forming on the filter cloth and to significantly improve its durability. [Structure] A plurality of filter plates 1 each having a liquid supply hole 3 and which can be freely contacted and separated.
A filter press in which a filter cloth 5 suspended from a filter cloth suspension rod 7 is disposed, and a side end portion of the filter cloth 1 has a liquid supply hole for applying a tension state to the filter cloth 5. It is characterized in that it is fixed to the filter plate 1 at a site located at substantially the same height as 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a filter press used for filtering sludge and the like.

[0002]

[Prior art]

 Conventionally, as this kind of filter press, there is one as shown in FIG. 4, for example.

That is, in this conventional device, a plurality of filter plates 1a arranged to face each other so that they can come into contact with and separate from each other, and a pair of filter cloths 5d having a tubular portion 5c at the upper end and arranged between the filter plates 1a, The filter cloth suspension rod 7a is inserted into the tubular portion 5c of the filter cloth 5d, and the filter cloth suspension rod 7a has holes formed at predetermined intervals in the tubular portion of the filter cloth 5d ( A pair of pins 8a that can be inserted into (not shown) are provided so as to project.

Also, the center of the lower side of the filter cloth 5d is fixed to the liquid supply fitting 4a attached to the liquid supply hole 3a of the filter plate 1a, and as shown in FIG. 5d gives a predetermined tension to the filter cloth 5d by binding and connecting the string 17 provided on the side thereof.

Then, in the actual filtration work, in a state where all the filter plates 1a are polymerized so that the filter cloth 5d is sandwiched between the filter plates 1a, sludge or the like is fed between the liquid supply holes 3a and the filter plates 1a. The flow is carried out, and then the filter plate 1a is separated to remove the cake adhering to the filter cloth 5d.

[0006]

[Problems to be solved by the device]

 However, since the filter cloth 5d in the above conventional filter press is simply connected by the binding of the string 17, the filter cloth 5d receives a tensile force when the sludge or the like flows into the inside of the filter plate 1a. As a result, it becomes impossible to maintain the tension of the filter cloth 5d due to the string 17 and the filter cloth 5d is loosened and wrinkles 18 are formed between the liquid supply hole 3a of the filter plate 1a and the filter cloth fixing pin 8a. There was an inconvenience that it was formed.

Thus, when the wrinkles 18 are formed on the filter cloth 5d in this manner, the filter cloth 5d is easily twisted obliquely when the sludge or the like flows in, so that the tensile force due to the inflow of the sludge or the like is applied to the filter cloth 5d. However, there is a problem in that durability is lacking due to damage to such parts.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to prevent wrinkles from being generated in a filter cloth and to significantly improve its durability. .

[0009]

[Means for Solving the Problems]

 That is, in order to solve the above-mentioned problems, the present invention has a filter cloth 5 suspended from a filter cloth suspension rod 7 between a plurality of filter plates 1 each having a liquid supply hole 3 and which can be freely contacted and separated. A filter press for fixing a filter cloth 5 to the filter plate 1 at a position where its side end is located at substantially the same height as the liquid supply hole 3 of the filter plate 1 in order to give a tension state to the filter cloth 5. It is a filter press that is made.

[0010]

[Action]

 Thus, in the filter press having the above-mentioned structure, the side end of the filter cloth 5 is attached to the filter plate 1 at a portion located at substantially the same height as the liquid supply hole 3 of the filter plate 1. Since it is fixed, it expands due to sludge or the like flowing in from the liquid supply hole 3, but the filter cloth 5 is not drawn into the filter plate 1, and the tension of the filter cloth 5 is maintained and wrinkles occur. Then there is no such thing.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a plurality of filter plates arranged so as to be movable in the horizontal direction, and adjacent filter plates 1 are connected to each other by a mountain-shaped link mechanism 2, The filter plate 1 is provided with a liquid supply tool 4 attached to a liquid supply hole 3 formed in the lower center of the filter plate 1.

Reference numeral 5 denotes a pair of filter cloths arranged between the filter plates 1, and a pair of holes (not shown) are formed at predetermined intervals in the cylindrical portions 5a and 5b provided at both upper and lower ends thereof. A rod-shaped weight 6 is attached to the cylindrical portion 5b at the lower end, and the center of the lower side of the filter cloth 5 is fixed to the liquid supply fitting 4 of the adjacent filter plate 1.

Reference numeral 7 is a filter cloth suspension rod inserted through the cylindrical portion 5a at the upper end of the filter cloth 5, and a pair of pins 8 protruding from the upper surface thereof are inserted into the holes of the filter cloth 5 to position them. Is being pursued.

Reference numeral 9 is a screw for fixing the lower end portion of the filter cloth 5 to the lower end corner portion of the filter plate 1 in order to apply a constant tension to the filter cloth 5, and as shown in FIG. It is inserted into the bored hole 10 and is screwed and fixed to the screw hole 11 of the filter plate 1 bored at substantially the same height as the upper end of the liquid supply fitting 7.

Reference numeral 12 is a vibration spring attached to both ends of the filter cloth suspension rod 7 so as to suspend the filter cloth suspension rod 7. The other end of the vibration spring 12 is attached to the shaft 2 a of the link mechanism 2.

Reference numeral 13 denotes a pair of guide rails arranged above the filter plate 1 and formed of I-shaped steel. Reference numeral 14 is a head provided with wheels 15 that are rollable and engage with the guide rails 13, and the wheels 15 are driven by an electric motor (not shown) built in the head 14 to move on the guide rails 13. It is configured to do.

In FIG. 2, reference numeral 16 denotes a striking member disposed above the filter cloth suspending rod 7 in order to strike the filter cloth suspending rod 7 to give an impact, and the striking member 16 is attached to the head 14. It is configured to be able to reciprocate in the vertical direction by a driving means (not shown) such as a built-in air cylinder.

Although this embodiment has the above-described structure, when sludge or the like is filtered using such a filter press, first, the filter plate 1 is polymerized so as to sandwich the filter cloth 5 and When sludge or the like flows in from the liquid supply hole 3 of the filter plate 1 on the side, sludge or the like enters the filter chamber (not shown) formed between the filter plates 1 through the liquid supply hole 3 of each filter plate 1. Is filled.

When the sludge or the like flows in, the filter cloth 5 between the filter plates 1 is stretched by receiving a tensile force, but the filter cloth 5 is located on the side of the liquid supply hole 3 of the filter plate 1. Since the filter cloth 5 is fixed in the position, the filter cloth 5 is not drawn into the filter plate 1, and the filter cloth 5 can maintain the original tension state.

Therefore, wrinkles do not occur on the filter cloth 5, and the situation in which the filter cloth 5 is damaged by the occurrence of such wrinkles can be satisfactorily avoided, and the filtration efficiency thereof is not lowered, and the filter cloth 5 can be used for a long time. It has excellent durability and can perform good filtration work.

Next, the cake adhering to the filter cloth 5 is removed. In this case, first, the driving plate (not shown) provided below the filter cloth 1 located at the end as shown in FIG. Then, the slapping body 16 is reciprocated in the vertical direction by the driving means to strike the filter cloth suspension rod 7 to remove the cake adhering to the filter cloth 5, and the operation is repeated. The cake is also removed from the other filter cloths 5.

Since the filter cloth 5 can be fixed by a simple operation of screwing the filter cloth 5 at a predetermined position on the filter plate 1, the cost is not increased, and the filter cloth can be easily attached to the existing filter press. Has the advantage that it can be applied to

In the above embodiment, the filter cloth 5 is fixed at substantially the same height as the upper end of the liquid supply fitting 4 attached to the liquid supply hole 3 of the filter plate 1. The present invention is not limited to this, and in short, in order to impart a tension state to the filter cloth 5, the filter cloth 5 is located at a position substantially at the same height as the liquid supply hole 3 formed in the filter board 1. The filter cloth 5 may be fixed to the filter plate 1 even if the liquid supply hole 3 is formed at the upper end of the filter plate 1, for example.

Further, the fixing means for the filter plate 1 and the filter cloth 5 is not limited to the screw fixing as in the above embodiment, and any specific fixing means for both may be used.

In addition, the specific configuration of each part of the filter press can be arbitrarily modified within the scope intended by the present invention.

[0027]

[Effect of device]

 As described above, according to the present invention, the filter cloth is fixed to the filter plate at a position located at substantially the same height as the liquid supply hole formed in the filter plate. Although the filter cloth is stretched by the sludge or the like, the filter cloth is not pulled into the filter plate, and the tension of the filter cloth is maintained evenly.

Therefore, wrinkles do not occur in the filter cloth unlike the conventional one in which the adjacent filter cloths are connected to each other via the filter plate by the string, and thus the durability of the filter cloth is greatly improved as compared with the conventional one. It has come to obtain a special effect of improving.

In addition, as described above, the filter press according to the present invention has an extremely simple structure, so that it has a practical effect that it can be easily manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a filter press showing an embodiment of the present invention.

FIG. 2 is a front view of the relevant part.

FIG. 3 is an enlarged sectional view of an essential part showing a fixed state of a filter cloth and a filter plate.

FIG. 4 is a front view of a main part showing a conventional example.

FIG. 5 is a side view of a main part showing a conventional example.

[Explanation of symbols]

 1 ... Filter plate 3 ... Liquid supply hole 5 ... Filter cloth 7 ... Filter cloth suspension rod

Claims (1)

[Scope of utility model registration request] 1. A filter cloth (5) suspended from a filter cloth suspension rod (7) is arranged between a plurality of filter plates (1) having a liquid supply hole (3) and capable of coming into contact and separating. A filter press, the side end of which is a liquid supply hole of the filter plate (1) in order to give a tension state to the filter cloth (5).
A filter press, characterized in that it is fixed to the filter plate (1) at a site located at substantially the same height as (3).