JPH052705U - Cleaning device for filter plate sealing surface in filter press - Google Patents

Abstract

(57) [Abstract] [Purpose] A cleaning device that does not obstruct the opening and closing of the filter press is installed to clean the sealing surface of the filter plate, wash off the adhering filter cake, and remove the filter when closing the filter plate. (EN) A cleaning device for a sealing surface that restores the airtightness of a filtration chamber formed between plates, and a filter material that does not require cleaning. [Structure] A cleaning pipe 9 is provided below the filter plate row,
Cylinders 10 are arranged at both ends of the cleaning pipe 9 so that the cleaning pipe 9 can reciprocate in the width direction of the filter plate, and the cleaning pipe 9 is positioned between the filter plates in an open state, and the nozzle pipe 13 is attached to the cleaning pipe 9. It stood upright, the opening of the nozzle tube 13 was branched, and the lower parts of the left and right filter plates were made to face the sealing surface. A cleaning pipe 16 was also provided above the filter plate to clean both ends of the upper sealing surface of the opened filter plate and the upper sealing surface of the stock solution supply port. A metal filter medium having a good cake peeling property was laid on the filter bed of the filter plate so that the filter medium was not required to be washed, and the filter cake adhering to the filter plate could be washed off with a small amount of washing water.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a cleaning device for a sealing surface of a filter plate in a filter press, Lay a filter material with good releasability on the filtration floor of the filter plate, and after discharging the cake from the filtration chamber, The present invention relates to a device for removing a filter residue attached to a plate sealing surface.

[0002]

[Prior art]

  As a conventional device for cleaning the filter cake attached to the filter cloth after discharging the cake, a filter plate row is used. A washing water supply pipe is rotatably provided along the front-back direction of the Connect the nozzle tube for cloth cleaning and rotate the nozzle tube from the upright state to the space between the filter plates. Then, there was a device for cleaning the filter cloth between the opened filter plates to remove the filter residue (for example, Japanese Utility Model Publication No. 59-33445). In addition, a chain stretched in the front-back direction of the row of filter plates When a filter plate is opened by connecting a cleaning pipe with a large number of nozzles to the When performing filtration by moving it below the filter plate, place the washing tube in a position that does not interfere with filtration. There was also a device for cleaning the sludge that was evacuated to the storage (for example, Jikho 57-27532). Issue).

[0003]

[Problems to be solved by the device]

  However, in the conventional device described above, it is necessary to filter the sealing surface of the filter plate rather than cleaning it. It is for cleaning the cloth, and it moves between the open filter plates and it gets dirty from the proper position. Can be cleaned and moved to an unobtrusive position during the filtering movement of the filter press. Although it can be moved, it requires a large amount of washing water to wash the entire surface of the filter cloth, The structure of the device itself is complicated, and therefore, it may be expensive. Also wash For rotating the clean water supply pipe, press the water pipe of the diaphragm or filter cloth tension. There is a risk that accessory parts such as members for use provided below the filter plate may interfere. The present invention is A cleaning device that does not obstruct the opening and closing of the filter press is installed to seal the filter plate. Is washed to wash away the adhered filter cake, and it is formed between the filter plates when the filter plates are closed. We provide a cleaning device for the sealing surface to restore the airtightness of the filtration chamber, and The purpose is to provide a filter medium that is not needed.

[0004]

[Means for Solving the Problems]

  According to the present invention, a large number of filter plates are arranged in parallel on a horizontally arranged guide rail, and between the filter plates. In a filter press designed to form a filtration chamber, along the row of filter plates A washing pipe is installed on one side, cylinders are installed at both ends of this washing pipe, and the washing pipe is attached to the filter plate. It can be reciprocated in the width direction of the , Install the nozzle pipe upright on the cleaning pipe, and branch the opening of the nozzle pipe to attach the most residue. It is installed opposite to the lower sealing surface of the left and right filter plates. And above the filter plate A cleaning pipe is installed along the row of filter plates, and the cleaning pipe is placed between the filter plates in the open state, and the cleaning pipe is The nozzle pipe, and then branch this nozzle pipe to both ends of the upper sealing surface of the filter plate and the filter plate. The opening is provided above the sealing surface of the stock solution supply port provided in the upper part of. In addition, the filter bed of the filter plate is laid with a metal filter material having good cake peeling property. .

[0005]

[Action]

  The device according to the present invention is configured as described above, and after discharging the cake, the device is washed. If you operate the cylinder while supplying purified water to the cleaning pipe, While the slide pipe moves between the filter plates, the cleaning water is sprayed on the lower sealing surface of the filter plates to seal Rinse away the residue on the surface. On the other hand, the upper sealing surface and the left and right sealing surfaces of the filter plate In order to remove the filter cake adhering to the filter, supply the cleaning water to the cleaning pipe above the filter plate. For example, the cleaning water sprayed from the nozzle pipe may flow from the upper end of the filter plate upper sealing surface To wash away the adhering filter cake. In addition, the washing solution supplied above the stock solution supply port Clean water is to wash away the deposits on the seal surface around the stock solution supply port and form between the filter plates when closing. The airtightness of the filtration chamber can be restored. Then, lay a metal filter medium on the filtration floor. If you leave it open, the metal filter media will have good cake peeling properties, so open the filter plate It can be easily removed from the filtration chamber.

[0006]

【Example】   The invention of the present application is configured as described above, and when described in detail with reference to the drawings, reference numeral 1 Frame, reference numeral 2 is a pair of guide rails supported by frame 1.1, reference numeral 3 is It is a filter plate, and a large number of filter plates are slidably arranged in parallel on the guide rail 2. . Movable heads 4.5 are provided on both sides of the filter plate 3 ... The movable head 4.5 and the movable head 4.5 are connected by a link chain 6. And a guide The chain 8 is wound around a pair of sprockets 7.7 provided at both ends of the rail 2. The upper and lower sides of the chain 8 are locked to the movable head 4.5, respectively. There is. When one of the movable heads 4 is pressed by the hydraulic cylinder 9, the movable head 4 is engaged. The stopped chain 8 rotates to move the movable head 5 in the central direction, and the filter plate row 3 ... can be opened and closed simultaneously from the left and right.

[0007]   Reference numeral 9 is a cleaning pipe provided below the filter plate row 3 ... 3 is a pair of cylinders provided along the inside of the frame 1.1 of FIG. As described above, the cleaning pipe 9 is connected to the tip of the piston 11 of the cylinder 10. This When the piston 11 is expanded and contracted, the cleaning pipe 9 is provided in the lower width direction of the movable plate 4.5. It is adapted to reciprocate along rails 12.12. As shown in FIG. As shown, when the filter plate rows 3 ... The nozzle tubes 13 ... The opening of the nozzle tube 13 is an open plate. The left and right filter plates 3.3 are provided opposite to the lower sealing surface 14a, and the filter plate rows 3 ... While opening the plate and moving the cleaning pipe 9 on the rail 12, supply the cleaning water to the cleaning pipe 9. Then, the cleaning water is sprayed from the nozzle pipe 13 to the lower sealing surfaces 14a of the left and right filter plates 3.3. Therefore, it becomes possible to wash away the filter residue attached to the lower sealing surface 14a. ing. When closing the filter plate rows 3 ..., the piston 11 is contracted. Then, the cleaning pipe 9 can be retracted from below the filter plate 3, and the filter press It is designed so that it does not get in the way of the filtration operation. The reference numeral 15 is provided on the cleaning pipe 9. It is a wheel.

[0008]   Reference numeral 16 is a cleaning pipe provided above the filter plate row 3 ... The cleaning pipe 16 is positioned between the filter plates 3.3 in the open state, and the nozzle pipe 17 is hung down. As shown in FIG. 3, the nozzle pipe 17 is branched and the upper sealing surface 1 of the filter plate 3 is 4b and the upper seal surface 14b of the stock solution supply port 18 of the filter plate 3 are opened above both ends. Parts are provided. The filter plate row 3 ... is opened and cleaning water is supplied to the cleaning pipe 16 to When sprayed from the trick tube 17, it sprays on both ends of the upper sealing surface 14b of the filter plate 3. The washing water thus obtained can be washed away while adhering to the filter cake while flowing down the left and right sealing surfaces 14c. I can do it. On the other hand, the cleaning water sprayed on the upper sealing surface 14b of the stock solution supply port 18 is Clean the peripheral sealing surface 14b of the stock solution supply port 18 where the filter residue is likely to adhere, and wash the filter residue. Can be washed away. The filter plate 3 on which the filter residue on the sealing surface 14 has been washed out is .. If the plate is closed, the stock solution will not flow out from the filtration chamber formed between the filter plates 3.3. It is a good thing.

[0009]   As shown in FIG. 3, reference numeral 19 is a perforated plate provided on the filtration bed 20 of the filter plate 3, On this perforated plate 19, a metal filter material 21 having a filter mesh of 1 to 5 microns is laid. The cake formed in the filtration chamber of the filter plate 3.3 can be opened by opening the filter plate 3.3. , The metal filter medium 21 has better peelability than the conventional resin filter medium, and the cake has its own weight. By this, it can be peeled off from the filter medium surface and discharged downward. Note that it adheres to the cake If there is, high pressure air is blown from the back side of the metal filter medium 21 and the cake becomes metal. The cake is removed from the filtration chamber by lifting it from the filter surface of the filter material 21 and opening the filter plate 3.3. It can be easily discharged. In this way, the metal filter medium 21 has good peelability and Since there is little clogging, it is not necessary to wash the filter medium. In addition, the metal filter medium 21 If the perforated plate 19 that supports the metal plate is a metal plate, it can be used for high-temperature undiluted solution, Since it is a filter medium, it is more durable and less expensive to maintain.

[0010]

[Effect of device]

  Thus, according to the present invention, the filter plate row is opened, the cylinder is operated, and the cleaning pipe is washed. If clean water is supplied, the lower seal surfaces of the left and right opened filter plates can be washed. That is, in the conventional device, in order to wash the entire filter plate on which the filter cloth is stretched, the amount of washing water is increased. However, in the present invention, the device becomes large and complicated. When the cylinder is operated, the nozzle pipe standing on the cleaning pipe is located on the lower sealing surface of the filter plate. The cleaning water is sprayed while moving on the front side, so the scum adhered to the sealing surface is washed away. You can Also, if the piston of the cylinder is contracted, it will be Since the cleaning pipe can be retracted from the It will not interfere with the machine and will be easy to maintain. In addition, If washing water is supplied from the washing pipe above the plate, the undiluted solution of the part of the filter plate where the filter residue is likely to adhere The peripheral sealing surface of the supply port and the left and right sealing surfaces can be cleaned at the same time. That In the present invention, since the metal filter medium is used, the peelability is good and the filter medium is less likely to be clogged. Therefore, it is not necessary to wash the filter media like the conventional device, only the sealing surface of the filter plate is washed. Since it is purified, less washing water is required, and the durability is increased because a metal filter medium is used. It is also compatible with hot stock solutions.

[Brief description of drawings]

FIG. 1 is a schematic side view of a filter plate sealing surface cleaning device in a filter press according to the present invention.

FIG. 2 is a vertical cross-sectional side view showing a filter plate opened and a part thereof taken out.

FIG. 3 is a front view showing a state in which a cleaning device is arranged on the filter plate.

[Explanation of symbols]

2 Guide rail 3 filter plates 9 Cleaning tube 10 cylinders 13 nozzle tube 14a Lower sealing surface 14b Upper sealing surface 16 Washing pipe 17 nozzle tube 20 filtration bed 21 Metal filter media

Claims (3)

[Scope of utility model registration request] 1. In a filter press in which a large number of filter plates 3 ... Are arranged in parallel with a horizontally provided guide rail 2 and a filtration chamber is formed between the filter plates, a filter plate row 3 ... A cleaning pipe 9 is provided below the cleaning pipe 9, and cylinders 10.10 are arranged at both ends of the cleaning pipe 9 so that the cleaning pipe 9 can reciprocate in the width direction of the filter plate 3 and is in an open plate state. The nozzle pipe 13 is erected on the cleaning pipe 9 so as to be located between the filter plates 3.3, and the opening portion of the nozzle pipe 13 is branched so that the left and right filter plates 3.3 are provided.
An apparatus for cleaning a filter plate sealing surface in a filter press, characterized in that the cleaning device is opposed to the lower sealing surface 14a. 2. A cleaning pipe 16 is provided above the filter plate row 3 ... Above the filter plate array 3 and is positioned between the filter plates 3.3 in an open state, and a nozzle pipe 17 is hung down on the cleaning pipe 16. This nozzle pipe is branched, and openings are provided above both ends of the upper sealing surface 14b of the filter plate 3 and above the upper sealing surface 14b of the stock solution supply port 18 provided on the upper part of the filter plate 3. The cleaning device for the filter plate sealing surface of the filter press according to claim 1. 3. A filter bed 20 of the filter plate 3 and a metal filter material 21 on the filter bed 20.
A cleaning device for a filter plate sealing surface in a filter press according to claim 1 or 2, characterized in that