KR20190139367A - A filter press system equipped with an automatic filter cloth washing device - Google Patents

Abstract

The present invention relates to a filter press system having an automatic filter cloth washing device, which comprises: a plurality of filter plates (50); and a filter cloth (60), and further comprises: a main gear (110); a ratchet gear (120) and a ratchet key (122); a rack chain (200); a timing gear (180); and a support gear (190). According to the present invention, work time is reduced and filtration efficiency is increased, thereby enhancing productivity.

Description

Filter press system equipped with an automatic filter cloth washing device

The present invention relates to a filter press system, and more particularly, to a filter press system equipped with an automatic filter cloth cleaning device capable of automatic detachment and simultaneous automatic cleaning of a cake attached to the filter cloth by rotating the filter cloth surrounding the filter plate. It is about.

In general, wastewater treatment processes that purify or recover toxic substances or hazardous substances from wastewater generated by industrial processing of cement, aggregate, food, chemical, steel, aquatic products, pharmaceuticals, or paints are treated to a predetermined acceptable water quality. This is essential.

Wastewater treatment processes to remove toxic or harmful substances include physical treatment or microbiological treatment. Flotation, slurry, etc. are generated during the treatment. However, these suspended solids, slurries, and the like contain moisture and are bulky and heavy. Therefore, a dehydration process for removing water contained in the suspended matter, slurry (Slurry) and the like in the wastewater treatment process is included.

One device used in the dehydration process is a filter press system. A filter press is an industrial pressure filtration apparatus for separating and filtering solids contained in a liquid into a liquid and a solid, respectively. The filter press is a device for applying a pressure to a filter plate equipped with a filter cloth to perform a dehydration process. Specifically, the filter press pressurizes the slurry, which is a liquid dehydration object in a liquid state, to a filtration chamber by pressurizing it with a pump or the like, and the slurry supplied to the filtration chamber is dehydrated by squeezing by using a plurality of filter plates. The slurry, which was in the state, is separated into a filtrate (dehydration solution) and a cake.

Next, the cake is separated downward by its own weight in the process of releasing the pressing and spaced apart the filter plates compressed with each other at predetermined intervals. As such, the slurry flows through the filter cloth attached to the filter plate, and the inevitable problem of cakes inevitably occurring during the filtration process is not attached to the filter cloth, etc., and the filtration efficiency decreases due to clogging of the filter cloth. There is a problem that is not guaranteed, and therefore a cleaning procedure and related apparatus are required for cleaning the contaminants that have not been removed from the filter cloth.

In a filter press having a rotary filter cloth of Patent Document 1, which is a prior art, a circular annular filter cloth is provided outside the filter plate, and the filter cloth has a rotary filter cloth that is transported by the operation of the filter cloth driving means. The filter cloth driving means includes a pair of transmission shafts that rotate according to the driving of the filter cloth rotary motor, an upper rotation shaft coupled to the upper side of each filter plate so as to receive rotational force from the transmission shaft, and the upper rotation shaft and the transfer chain. It includes a lower shaft coupled to the lower side of the filter plate to be connected to rotate, the filter cloth is installed on the outer side of the upper rotary shaft and the lower shaft and one side is coupled to the transfer chain by a coupling pin and a nut to rotate the substrate It is. However, there is a problem in that a separate filter cloth driving means including a filter cloth rotating motor and an associated power transmission shaft is required to rotate the filter cloth.

Patent Document 1. Republic of Korea Patent Publication No. 10-1113228

In order to solve the problems of the present invention, the filter plate is spaced apart after the pressing and filtration in the operation of the filter press to move to the original position, by using only the power to move the filter plate to the plurality of filter cloth It is a task to improve the productivity by improving the desorption of the cake and the clogging of the filter cloth by increasing the rotation of the upper and lower rolls in sequence and improving the clogging phenomenon of the filter cloth.

In order to achieve the above object, the filter press system of the present invention,

A plurality of filter plates horizontally moved across the main frame by a pair of hook portions protruding in a horizontal direction on both sides; And wrapped around the front and rear surfaces of the filter plate is mounted in the form of a circulation ring, the filter cloth is supported by the upper and lower sides by the filter cloth support rod; including, and rotates the direction in which the hook portion extending in the hook portion in the axis A main gear possibly provided; A ratchet key rotatably coaxially coupled to the main gear and a ratchet key for rotating the main gear only by one direction rotation of the ratchet gear; A rack chain aligned in a horizontal direction so that the ratchet gear is engaged and rotated; A timing gear provided coaxially to the main gear to adjust timing according to rotation of the main gear; And a support gear provided at an end of the at least one filter cloth support rod, the support gear being wound around the timing gear by a timing belt to support roll rotation of the filter cloth, before the filter plate moving part is pressed against the filter plate. The driving force is transmitted to the main gear when moving to space the state, characterized in that for the filter cloth to rotate the roll.

In addition, it is provided on one side of the filter cloth is rotated up and down, characterized in that it further comprises a water injector for spraying water at a predetermined inclination with respect to the filter cloth.

In addition, the driving force of the filter plate moving unit is to be transmitted only to the main gear of the filter plate that is finally compressed and started to be spaced first, and the filter plates connected to each other by a connecting string of a predetermined length are subsequently spaced apart. It is done.

In addition, one of the pair of filter cloth support rods for supporting the upper side and the lower side of the filter cloth is a drive side provided with the support gear, the other is characterized in that the roller to the driven side.

Therefore, the filter press system of the present invention uses the fact that the filter plate is spaced apart and moved to the original position after the compression and filtration are completed in the operation of the filter press, and thus, without additional power device for moving the filter plate, By rotating the filter cloth in order to rotate the upper and lower rolls at the same time, it is easy to detach the cake and improve the clogging of the filter cloth has the effect of increasing the productivity by saving work time and filtration efficiency.

1 is a basic configuration of a filter press system according to an embodiment of the present invention.
2 is a schematic view of the filter plate and filter cloth of the filter press system according to an embodiment of the present invention.
3 is a schematic diagram showing an operating state of the filter press system according to an embodiment of the present invention.
4 is a block diagram of a filter press system according to an embodiment of the present invention.
5 is a detailed operation of the filter press system according to an embodiment of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Figure 1 shows the basic configuration of the filter press system without the filter cloth, Figure 2 is a diagram schematically showing the cross section of the filter plate and filter cloth of the filter press system according to the present invention. 3 to 5 are diagrams showing the operation process, main configuration and detailed operation of the filter press system according to the embodiment of the present invention, respectively.

In the filter press work process, the cylinder forward-filter plate compression-slurry pump operation-filtration-cylinder reverse-filter plate transfer-cake detachment discharge operation is repeatedly performed. It presses by the whole and presses, and when filtration is complete | finished, the operation | work which shakes a cake from the filter plate 50 and the filter cloth 60 in a chamber is needed.

The cake is generally dropped to the lower side by its own weight, but in order to support the present invention, by rotating the filter cloth 60 surrounding the filter plate 50 up and down, the cake is automatically shaken off and at the same time automatically washed. It is the task to do it.

And as a specific means for solving the above problems, when pressing the filter plate 50 by the pressing plate 30 in accordance with the driving of the cylinder 20, no separate power is used to transfer the filter plate 50. In the case where the filter plate 50 is spaced and transferred to the original position, the filter cloth 60 is moved up and down in the process of transferring the filter plate 50 by using only the power for simply transferring the filter plate 50 by the filter plate moving part 40. It is rotated to remove contaminants and washed in the process so that the cake desorption process proceeds automatically.

As shown, the filter plate 50 is mounted on the main frame 10 in the body of the filter press is transferred to the left and right by various transfer means to compress the slurry introduced from the outside and then dewatering treatment, the filter plate 50 The plate may have a plate shape having a predetermined size, and the plurality may be spaced apart from each other at a predetermined interval in a row. Therefore, the filter plates 50 are supplied with the slurry between the filter plates 50, and serves to pressurize the slurry to separate the filtrate and the cake as the distance between the two filter plates 50 adjacent to each other becomes narrow. The filter plate 50 may have a shape in which a predetermined space is formed to accommodate the slurry.

In addition, at a predetermined position of the filter plate 50, a slurry inlet for accommodating and dewatering when the slurry generated in the wastewater treatment process is transferred to the filter plate 50 by the operation of a pump (not shown) in an aggregated state ( 51 is formed, and the filtrate outlet 52 is formed below the slurry inlet 51.

In addition, the lower portion of the filter plate 50 may be formed so that the connector 53 is connected to each other by a connecting line (not shown) of a predetermined length. Accordingly, when the filter plates 50 are transported by the filter plate moving unit 40 to reposition the filter plates 50 in the original state after the pressing and filtration are finished, the filter plates 50 which are finally compressed and start to be separated from each other for the first time are transferred. By transmitting only the driving force to transfer, so that the filter plate 50 connected by the connecting line can be subsequently transferred sequentially.

The filter cloth 60 is mounted to the front and rear surfaces of the filter plate 50 to compress and dehydrate the untreated slurry according to the operation of the cylinder 20 and the inflow of the slurry, and the filter plate 50 is covered with the filter cloth 60. In the state, a plurality is provided adjacent to each other, the shape of the filter cloth 60 is configured to correspond to the shape of the filter plate 50 so that the slurry introduced into the slurry inlet 51 by the pump is compressed and dewatered by the filter cloth 60 When done, the filtrate, except for the slurry shaped into a cake, is configured to be discharged through the filtrate outlet 52.

Specifically, each filter plate 50 spans a pair of main frames 10 that are parallel by a pair of hook portions 100 that protrude in a horizontal direction on both sides of the filter plate 50, and includes a cylinder ( By pressing plate 30 driven by 20 to each other along the main frame 10 to the head and 24 (Fig. 3 (a)), or after the pressing plate 30 is returned to the main frame ( While sequentially transported by the filter plate moving part 40 provided on one side of (10) (FIG. 3 (b)), it is horizontally moved along the main frame 10, before each compression plate 50 is spaced apart It returns to a state (FIG. 3C).

The filter plate moving part 40 is provided at one side of the main frame 10 and is provided with a predetermined driving means to horizontally reciprocate along the main frame 10.

The filter plate moving part 40 is not driven in the process of pressing the filter plate 50 toward the head end 24 (A direction in FIG. 3) by the pressing plate 30 driven by the cylinder 20, but the pressing plate 30 is not driven. And it is operated in the process of returning the filter plate to the original state after the filtration, and is located on the rear of the filter plate 50, for example, the rear of the pair of hook portion 100 protruding toward the side of the filter plate 50, The operation of transferring the 50 to the original position before the compression (in the direction of B in FIG. 3) and returning to the next space is repeated again after the filter plate 50 to be transferred.

Meanwhile, as described above, the filter plate moving unit 40 performs only one process of transferring only the front filter plate 50 so that the filter plates 50 connected by the connecting line may be subsequently transferred sequentially. Can be.

Filter cloth 60 is mounted on the front and rear of each filter plate 50, it is mounted in the form of a circulation ring while wrapping the front and rear of the filter plate 50 up and down, respectively supported horizontally from the upper and lower sides by the filter cloth support rod (70) It can be configured in such a way.

That is, the filter cloth 60 is supported by the upper and lower sides of the pair of filter cloth support rods 70 which are horizontally movable and rotatable on each of the upper frame (not shown) and the lower frame (not shown), respectively, 50 is disposed between and may be mounted in the form of a circulation ring while wrapping the front and rear surfaces of each filter plate 50 up and down.

On the other hand, one of the pair of filter cloth support rods 70 for supporting the upper side and the lower side of the filter cloth 60 is provided with the following support gear 190 as the drive side, the other is provided with a roller (not shown) to the driven side Can be.

In addition to the main frame 10, the upper frame and the lower frame formed with a horizontal guide groove (not shown) to support the upper and lower filter cloth support rod 70, and a vertical frame (not shown) to vertically connect and support these frames Of course) may be further provided.

The hook part 100 is formed to protrude and extend in a horizontal direction on both sides of the filter plate 50 so as to span a pair of parallel main frames 10, so that the filter plate 50 is placed on the main frame 10. You can lose.

Inside the hook portion 100, a main gear 110 rotatably provided in a direction in which the hook portion 100 extends, and a ratchet (Rachet) gear coaxially rotatably coupled to the main gear 110 ( 120 and the ratchet key 122 which rotates the main gear 110 only by the rotation of the ratchet gear 120 in one direction.

On the other hand, the rack chain 200 is provided on one side or both sides of the parallel pair of main frame 10 to be aligned in a horizontal direction, the ratchet gear 120 below the main frame 10 is a rack chain It is meshed with 200 and configured to rotate by rack-pinion drive.

The main gear 110 is provided inside the hook portion 100 on one side or both sides protruding to the side so that the filter plate 50 spans the main frame 10, the direction in which the hook portion 100 extends. It is provided to be rotatable about the axis.

The ratchet gear 120 is coaxially rotatably coupled to the main gear 110 and operates together with the ratchet key 122 which rotates the main gear 110 only by one direction rotation of the ratchet gear 120.

That is, as the filter plate 50 moves along the main frame 10, the ratchet gear 120 is assembled to the rack chain 200 which is aligned and fixed in the horizontal direction along the main frame 10 and rotates forward or backward. Done.

At this time, when the filter plate 50 is moved in the direction in which the filter plate 50 is pressed by the pressing plate 30, the ratchet gear 120 is idling so that no driving force acts on the main gear 110, Ratchet gears 120 that are engaged and rotated on the rack chain 200 in a state where the movement of the filter plates 50 are not driven in the process of being spaced apart to be restored to the original state after filtration are finished are ratchet keys 122 By transmitting a rotational force to the main gear 110 by the) to rotate the main gear (110).

In addition, the inner side of the hook portion 100 is provided with a timing gear 180 coaxially connected to the main gear 110, the timing belt 185 and the support gear 190 connected to the timing gear 180 is hook It may be provided on the outside of the part 100.

In consideration of the sizes of the hook part 100, the timing gears and the timing belts, the positions of the components may be variously configured in relation to the hook part 100.

The timing gear 180 is configured to adjust the rotation timing of the filter cloth 60 according to the rotation of the main gear 110, the support gear 190 is provided at the end of the at least one filter cloth support rod 70, thereby timing The belt 185 is wound around the timing gear 180 to support the roll rotation of the filter cloth 60 when the main gear 110 rotates.

Therefore, when the rotation driving force is transmitted to the main gear 110 by the one-way rotation of the ratchet gear 120 as described above, the support gear 190 is rotated by the timing gear 180 and the timing belt 185. , The filter cloth 60 is rotated up and down while the filter cloth 60 around the filter plate 50 with the upper and lower filter cloth support rods 70 as the axis to remove the cake or contaminants not detached.

On the other hand, the water injection device 300 is provided on the upper side of the main frame 10, for example, in a position that can cover the range of the stroke distance that the compressed filter plate 50 moves to the original position. That is, the water is sprayed only during the movement of the filter plate 50 to the original position.

The water injector 300 may be fixed at a predetermined position of the main frame 10 as shown in the illustrated ratio, or may spray water while moving along with the movement of the filter plate 50 along the main frame 10.

The water injector 300 injects water at a predetermined inclination against the filter cloth 60, which rolls up and down, in particular, while the filter plate 50 moves to its original position, thereby preventing cake from being properly detached from the filter cloth 60. Or it is possible to effectively clean the contaminants.

Although the present invention has been shown and described with reference to the preferred embodiments as described above, it is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

10: main frame
20: cylinder
30: pressing plate
40: filter plate moving part
50 filter plate
60: filter cloth
70: filter cloth support rod
80: vertical guide
100: hanger
110: main gear
120: Ratchet Gear
122: Ratchet Key
170: support rod insert
180: timing gear
185: Timing Belt
190: support gear
200: rack chain
300: water injector

Claims (4)

In the filter press system,
A plurality of filter plates 50 horizontally moved across the main frame 10 by a pair of hook portions 100 protruding in a horizontal direction on both sides; And
It includes a filter cloth 60 is installed in the form of a circulation ring while wrapping the front and rear surfaces of the filter plate 50 up and down, respectively, the upper and lower sides are supported by the filter cloth support rod 70;
A main gear 110 rotatably provided in a direction in which the hook portion 100 extends inside the hook portion 100;
A ratchet key 122 rotatably coupled to the main gear 110 and a ratchet key 122 for rotating the main gear 110 only by one direction rotation of the ratchet gear 120;
A rack chain 200 provided with the ratchet gear 120 to be engaged;
A timing gear 180 for adjusting timing according to the rotation of the main gear 110;
A support gear 190 is provided at an end of at least one filter cloth support rod 70 and wound around the timing gear 180 by a timing belt 185 to support roll rotation of the filter cloth 60. More;
The driving force is transmitted to the main gear 110 in the process of moving the filter plate 50 in the state before being compressed, characterized in that the filter cloth 60 to be rotated in sequence to roll, automatic filter cloth cleaning device is provided Filter press system.
The method according to claim 1,
It is provided on one side of the filter cloth 60 is rotated up and down, characterized in that it further comprises a water injector 300 for spraying water at a predetermined inclination with respect to the filter cloth 60, the filter cloth automatic washing device Equipped filter press system.
The method according to claim 1,
The driving force of the filter plate moving part 40 is to be transmitted only to the main gear 110 of the filter plate 50 which is finally compressed and started to be spaced apart for the first time, and is connected to each other by a connection line of a predetermined length 50. The filter press system with a filter cloth auto-cleaning device, characterized in that) is subsequently spaced sequentially.
The method according to claim 1,
One of the pair of filter cloth support rods 70 supporting the upper side and the lower side of the filter cloth 60 is a drive side provided with the support gear 190, and the other is a roller to the driven side, Filter press system with automatic filter cloth cleaner.

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