WO2019132140A1

WO2019132140A1 - Filter press

Info

Publication number: WO2019132140A1
Application number: PCT/KR2018/007157
Authority: WO
Inventors: 우현직; 이재진; 박정필
Original assignee: (주)동일캔바스엔지니어링
Priority date: 2017-12-26
Filing date: 2018-06-25
Publication date: 2019-07-04
Also published as: CN111511690A; CN111511690B

Abstract

The present invention relates to a filter press and, more particularly, to a filter press which comprises at least one of an improved bevel gear housing, a suspending shaft separated from a filter plate, a universal joint or a flexible shaft, an apparatus for simultaneously washing a filter cloth and a filter plate, a sealing reinforcing member, and a limit switch.

Description

Filter press

The present invention relates to a filter press, and more particularly to a filter press comprising an improved bevel gear housing, a separating contraction shaft, a universal joint or a flexible shaft, a filter cloth and filter plate simultaneous cleaning device, a sealing reinforcement member and a limit switch To a filter press.

Generally, the sewage discharged from the home or factory is sent to the sewage treatment plant, and the sludge generated in the treatment process is processed through a reduction process such as concentration and dehydration. The dehydrator, which is one of the devices used in the sludge reduction process, separates the filtrate from the sludge and is classified into a belt press, a filter press, a screw press, a centrifugal dehydrator and an electroosmotic dehydrator according to the operation principle.

The filter press is a device for removing sludge cake (dewatered sludge) from the filter chamber after pressurizing the filtrate sludge provided between the filter plates which are in close contact with each other to separate the filtrate from the sludge. Such a filter press is classified into a filter cloth movable filter press and a filter cloth fixed filter press depending on whether a filter cloth provided to surround the filter chamber between the filter plates is raised or lowered or fixed to the filter plate.

During dehydration in the filter cloth movable filter press, the filtrate separated from the sludge is passed through the filter cloth surrounding the filter cloth and then discharged to the outside of the filter plate via the surface protrusions of the filter plate. When the dewatering is completed, the sludge cake is separated from the filter cloth by the separation of the filter plates, thereby being separated from the filter cloth by a free fall. After the filter plates are separated from each other, the two filter cloths that have formed the furrows descend downward, where the sludge cake is separated from the filter cloth. When the separation of the sludge cake is completed, the filter cloth rises again, and then the filter plates are closely contacted. Then, two filter cloths located between the filter plates form the filter chamber, and the sludge to be dewatered is pressed into this filter chamber.

As described above, in the filter cloth movable filter press, since the filter cloth must move in the vertical direction, the filter cloth lifting means is provided. Conventional filtration apparatus elevating means includes a pair of hexagons and a plurality of filter cloth contractions. The pair of hexagonal bars are spaced apart from each other in the width direction (lateral direction) of the filter plate, and are rotatable about the rotation axis extending along the arrangement direction (front-rear direction) of the filter plate, and are located at the upper portions of the filter plates. The plurality of filter cloth contraction shafts are provided so as to extend in the left-right direction, to be spaced apart from each other in the front-rear direction, and to rotate about a rotation axis extending in the left-right direction. These filter shrinkages are bonded to the hexagonal rods through bevel gears, respectively. Sprockets are provided at both ends of the contraction of the filter cloth, and a chain hanging filter cloth hangs in the sprocket.

When the hexagonal rods rotate in the forward direction, the contraction of the filter cloth also rotates in the forward direction, and the filter cloth is raised. On the other hand, when the hexagonal rods rotate in the opposite direction, the contraction of the filter cloths also rotate in the opposite direction, and the filter cloth falls.

The filter cloth movable filter press having the above-mentioned filter cloth lifting means is disclosed in Korean Patent No. 10-0541328 (Filter Press) and Korean Patent No. 10-1308939 (Filter Filter Removable Filter Press).

Korean Patent No. 10-0497653 (filtration apparatus for filter press) and Korean Patent Laid-Open No. 10-2006-0111987 (filter plate unit and filter press using the same) disclose filter cloth fixed filter presses.

On the other hand, irrespective of the type, in the filter press, when the dewatering operation of one cycle is completed, the filter cloth fixed to the filter plates is washed, and the dehydration operation of the next cycle is performed.

The technology relating to the cleaning device for the filter press is disclosed in Korean Registered Utility Model No. 20-0405869 (filter device for cleaning filter plate for filter press), Korean Patent No. 10-0795218 (sludge removal and filter cleaning device for fully automatic filter press), Korea Registration Practical Utility Model No. 20-0288781 (filter cloth washing apparatus for filter press) and Korean Patent No. 10-1738389 (simultaneous washing apparatus for multiple filter cloth for filter press).

In addition, the type is unclear, and in the filter press, a hole is provided at a predetermined portion of the filter plate. When the filter plates are in close contact with each other, that is, in the closed plate state, adjacent holes communicate with each other to form a passage. For example, if holes are formed on the lower left and right sides of the filter plates, the holes of the filter plates in the closed plate state communicate with each other to form the lower left channel and the lower right channel.

The passageways thus formed are generally used as a fluid pathway. For example, the lower right passage formed by the holes formed on the lower right side of the filter plate is used as a path through which the filtrate separated from the sludge is discharged. Therefore, in each of the holes, a sealing member made of rubber or the like is provided for sealing the passage (refer to FIG. 6 of Korean Patent No. 10-0541328).

In a filter cloth movable filter press having a hexagonal rod, the hexagonal rod passes through the ring gear of the bevel gear. The head shrinkage is rotatably supported on a bracket fixed to left and right ends of the upper surface of the filter plate, and one end of the neck shrinkage is fixed to the pinion gear of the bevel gear. Therefore, when the filter plates are opened and closed, the contraction and the bevel gear are moved together with the filter plate in the forward and backward directions. At this time, the ring gear of the bevel gear linearly moves along the hexagonal bar.

However, since the opening and closing plates of the filter plates are made by pushing or pulling the hydraulic cylinder at the center of the pressure plate located at the front of the frontmost filter plate, there is a difference in the linear movement distance of the filter plates and the linear movement distance of the upper and lower ends. When the difference is large, the ring gear is caught in the hexagonal bar and the linear movement of the filter plates can not be smoothly performed, resulting in a problem that the filter press is destroyed.

Therefore, even if there is a difference in the linear travel distance between the left and right ends of the filter plates and the upper and lower ends, the ring gear is interposed between the hexagonal rods to prevent the filter plates from being linearly moved smoothly, I want to provide the technology that can be.

On the other hand, all of the prior arts disclosed in the above four prior art documents relating to a cleaning device for a filter press all inject wash water onto the surface of the filter cloth, that is, the outer surface of the filter cloth, which was in contact with the sludge. Therefore, all of these conventional techniques are only for cleaning the outer surface of the filter cloth.

Therefore, unlike the prior arts disclosed in the above four prior art documents related to the cleaning device for a filter press, the present invention provides a technique for cleaning the inner surface of the filter cloth and simultaneously cleaning the surface of the filter plate facing the inner surface of the filter cloth do.

On the other hand, if the period of use of the filter press is extended to some extent, the sealing member exposed to the filtrate during the use period is cured and the elastic force of the sealing member is weakened, so that sealing by the sealing member is not properly performed. In addition, due to processing errors of the filter plate and the sealing member, there arises a problem that the sealing by the sealing member can not be performed properly from the initial stage of installation.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a filter press capable of further reinforcing a sealing function in a state where sealing by a sealing member is not properly performed.

The present invention also provides a technique for reducing the length of the cylinder to shorten the overall length of the filter press and easily detecting the upper and lower limits of the rising and falling filter bags.

The filter press according to the first embodiment of the present invention is a filter cloth movable filter press having a bevel gear housing. The bevel gear housing includes a ring gear coupled to the hexagonal bar so as to penetrate a hexagonal rod extending in the front-rear direction at left and right sides of the filter plates of the filter movable filter press, A bevel gear which is provided on any one of the brackets and fixes one end of the filter shoe shrinkage supported by the left and right brackets and which is made up of a pinion gear engaged with the ring gear; A ring bearing mounted on an outer circumferential surface of the ring gear and rotated together with the ring gear; a ring bearing disposed on an outer circumferential surface of the inner ring and arranged in a circumferential direction; and an outer ring having a concave inner circumferential surface contacting the bearing; And a ring gear having a diameter between an inner diameter and an outer diameter of the outer ring, and a ring gear which is provided on the front and rear of the ring bearing, And a housing having a pair of escape grooves therein. The bevel gear housing of the filter press is provided.

The housing includes a first portion that receives one of the pair of escape grooves and the ring bearing, and is fixed to a bracket provided with the pinion gear; And a second portion that receives the other one of the pair of escape grooves and is detachably coupled to the first portion.

A sealing member made of rubber is provided on the inner surface of the housing facing the pair of escaping grooves so as to abut the outer circumferential surface of the ring gear. In this case, a groove extending in the circumferential direction is provided on a surface of the front and rear surfaces of the sealing member facing the escape groove, and a spring is provided in the groove to tighten the sealing member toward the outer peripheral surface of the ring gear Can be installed.

The housing is provided with at least one of a stopper and a shock absorber for uniformly maintaining a distance between the housings when the filter plates come into contact with each other.

A filter press according to a second embodiment of the present invention is a filter cloth movable filter press having a contraction axis separated from a filter plate. The filter press is provided to extend in the left-right direction at the upper portion of each of the filter plates arranged in the front-rear direction, and is adapted to suspend the filter fabric. The hexagonal bar extending in the forward and backward directions from the left and right sides of the upper and the lower filter plates is rotatably supported on the left and right sides of the contraction, Shrink housing; A ring gear coupled to the hexagonal bar so as to penetrate the hexagonal bar and a pinion gear fixed to an end portion of the left and right ends of the hysteretic shafts where the present shrinkable housing is not fastened and meshing with the ring gear; A bevel gear housing rotatably surrounding a rotary shaft of the ring gear and a rotary shaft of the pinion gear; A rail which supports the bevel gear housing and the hull shrink housing such that the front and rear ends thereof are fixed so as to be parallel to the hexagonal rod and the front and rear ends of the bevel gear housing and the hull contraction housing are slidable; And a tow chain connecting the adjacent bevel gear housings and the present shrink housing.

In the filter press according to the second embodiment, when the hydraulic cylinder is operated, both the front-end filter plate and the bevel gear housing fastened to the right and left sides of the head contraction shaft located above the frontmost filter plate and the head- And a platen that is configured to pull the platen.

The filter press according to the third embodiment of the present invention is a filter cloth movable filter press having a universal joint or a flexible shaft. The filter press includes: filter cloth contraction shafts rotatably supported on left and right brackets fixed to left and right ends of upper surfaces of respective filter plates arranged in the front-rear direction; A universal joint fixed to the left end of the filter bag contraction in one of the neighboring filter bag contractions and fixed to the right end of the filter bag contraction in the other one; A ring gear coupled to the hexagonal bar so as to pass through a hexagonal rod extending in the front and rear direction at left and right sides of the filter plates, and a pinion gear fixed to the universal joint and configured to engage with the ring gear; A bevel gear housing rotatably surrounding a rotary shaft of the ring gear and a rotary shaft of the pinion gear; A rail coupled to the bevel gear housing such that the front and rear ends thereof are fixed so as to be parallel to the hexagonal rod and the front and rear slidable of the bevel gear housing; At least one of a housing stopper and a shock absorber provided in the bevel gear housing so as to protrude toward a neighboring bevel gear housing; And a tow chain connecting the adjacent bevel gear housings.

In the filter press of the third embodiment, the universal joint may be replaced by a flexible shaft.

The rails are provided to support the bevel gear housing under the hex rod.

The filter press of the third embodiment includes a pressure plate that simultaneously presses backward or pulls forward the frontmost filter plate and the frontmost left and right bevel gear housings when the hydraulic cylinder is operated.

The filter press according to the fourth embodiment of the present invention is a filter cloth movable filter or filter cloth fixed filter press having a filter cloth and a filter plate simultaneous cleaning device.

When the sludge tank is provided with a sludge injection line for connecting the sludge inlet of the filter plate and the sludge tank and a filtrate discharge filter line for connecting the filtrate discharge port and the storage tank to the storage tank, A wash water discharge line extending from the branch point of the sludge injection line located between the sludge injection port and the sludge injection valve installed in the injection line to the storage tank and having a wash water discharge valve; And a washing water supply pump for pumping washing water from the washing water tank to the filtrate discharge port at a point of the filtrate discharge line extending from the washing water tank and located between the filtrate discharge valve provided in the filtrate discharge line and the filtrate discharge port, A wash water supply line having a wash water supply valve positioned between the wash water supply pump and the merging point; And a controller that closes the wash water supply valve and the wash water discharge valve when the sludge injection valve and the filtrate discharge valve are opened and closes the sludge injection valve and the filtrate discharge valve when the wash water supply valve and the wash water discharge valve are opened, .

When the pressurized water supply line including the pressurized water supply pump and the pressurized water supply valve is provided in the filter movable filter press extending from the pressurized water tank to the pressurized water injection port of the filter plate, the wash water tank is composed of the pressurized water tank The washing water supply pump is constituted by the pressurized water supply pump and the washing water supply line extends from the branch point of the pressurized water supply line located between the pressurized water supply pump and the pressurized water supply valve to the summed point of the filtrate discharge line . The controller closes the wash water supply valve when the pressurized water supply valve is opened, and closes the pressurized water supply valve when the wash water supply valve is opened.

A sludge injection line connected to the sludge inlet of the filter plate and the sludge tank and having a sludge injection valve, a sludge injection line connected to the sludge tank, a first filtrate discharge port connected to the storage tank and a first filtrate discharge valve A first filtrate discharge line and a second filtrate discharge port extending from a second filtrate discharge port which is the remainder of the plurality of filtrate discharge ports and interposed between the first filtrate discharge valve and the first filtrate discharge port, And a second filtrate discharge line provided with a filtrate discharge valve, the upper filtration bag and the filter plate simultaneous cleaning device are arranged to extend from the wash water tank and to extend between the second filtrate discharge port and the second filtrate discharge valve The second filtrate discharge line is connected to the second filtrate discharge line, The wash water supply line includes a supply pump for pumping the wash water in the second filtrate outlet, provided with a wash water supply valve is located between the wash water supply pump and the second filtrate sum point of the exhaust line; And when the sludge injection valve and the first and second filtrate discharge valves are opened, the wash water supply valve is closed, and when the wash water supply valve and the first filtrate discharge valve are opened, And a controller for closing the second filtrate discharge valve.

In addition, when provided in the filtration station fixed filter press, the upper filter cloth and the filtration panel simultaneous cleaning device are branched from the branch point of the sludge injection line located between the sludge injection valve and the sludge injection port and extend to the storage tank, A washing water discharge line provided with the washing water supply line; And a washing water supply pump for supplying washing water from the wash water tank to the filtrate discharge port, the washing water supply pump being connected to the filtrate discharge line at a joint point extending from the wash water tank and located between the filtrate discharge port and the filtrate discharge valve, A wash water supply line having a wash water supply valve located between a pump and a junction point of the filtrate discharge line; And when the sludge injection valve and the filtrate discharge valve are opened, the wash water supply valve and the wash water discharge valve are closed, and when the wash water supply valve and the wash water discharge valve are opened, the sludge injection valve and the filtrate discharge valve Clms Page number 14 >

The filter press according to the fifth embodiment of the present invention is arranged in the forward and backward directions between the front plate and the pressure plate, and is brought into close-packed state by being moved close to each other by the forward and backward movement of the pressure plate, A plurality of filtration plates each having a hole which communicates with each other to form a fluid passage; A sealing member provided in the hole to seal the fluid path; And a front sealing sealing member provided in a hole of a frontmost filter plate positioned closest to the front plate, and a sealing reinforcing member provided on the front plate so as to closely contact the front sealing member in the closed plate state.

Wherein the sealing reinforcement member for the front plate has a plurality of slots extending in the front-rear direction and fixed to the front plate by bolts fastened to the front plate after passing through the slot; And a close contact portion which is provided integrally with the fixing portion and is arranged to be in close contact with the forefront sealing member in the closed plate state.

The filter press according to the fifth embodiment may include a sealing reinforcing member for a pressure plate that can be used alone or in combination with a sealing reinforcing member for the front plate, without the sealing reinforcing member for the front plate.

At this time, the seal reinforcing member for the pressure plate is installed in the pressure plate so as to be closely contacted with the rearmost sealing member provided in the hole of the rearmost filtration plate positioned closest to the pressure plate, and in the forward and backward position.

Wherein the sealing reinforcing member for the pressure plate has a plurality of slots extending in the front and rear direction and is fixed to the pressure plate by bolts fastened to the pressure plate after passing through the slot; And a close contact portion provided integrally with the fixing portion and adapted to come into close contact with the rearmost sealing member in the closed plate state.

The filter press according to the sixth embodiment of the present invention includes a plurality of filter plates that are in contact with or separated from each other by a pressure plate that moves during the operation of the hydraulic cylinder and a plurality of filter cloths that are simultaneously raised and lowered between the filter plates. And a filter press. In the sixth embodiment, the upper arm and lower arm are mounted on the lifting chain for lifting up and down the outermost filter cloth located at the outermost position. And a lower limit switch located below the upper limit switch and capable of being pushed upward by the lower limit arm, is provided on the frame of the filter movable filter press, Respectively.

In the sixth embodiment, the rod of the hydraulic cylinder is provided with a multi-stage rod having an end coupled to the platen.

According to the first embodiment of the present invention having the bevel gear housing, the following effects are produced.

First, even if the filter plate is tilted to the left and right, the phenomenon that the ring gear of the bevel gear is caught in the hexagonal bar does not occur, and the linear movement of the filter plate can be smoothly performed.

In addition, the injected lubricant can be prevented from leaking to the outside in order to smoothly operate the ring bearings, and the filter plate can be linearly moved smoothly when the filter plates are tilted to the left and right.

In addition, even if the filter plate tilts up and down during linear movement of the filter plate, the upper and lower tilts can be removed when the filter plates come into contact with each other.

According to the second embodiment of the present invention having the contraction contraction separated from the filter plate, the following effects occur.

First, even if the filter plate is tilted to the left and right and / or tilted up and down, the posture of the contraction is maintained, so that the phenomenon that the ring gear provided in the bevel gear at one end of the shrinkage does not stick to the hexagonal bar does not occur.

In addition, although the filter plate and the upper shrinkage thereon are separated from each other, the upper filter plate and the contraction shrinkage are simultaneously pressed and pulled in operation of the single hydraulic cylinder.

According to the filter press according to the third embodiment of the present invention, the following effects are produced.

First, even if the filter plate is tilted leftward and rightward and / or tilted up and down, the ring gear of the bevel gear does not stick to the hexagonal bar at all.

Further, even when the bevel gear housing is disconnected from the bracket on the upper surface of the filter plate, the bevel gear housing can not rotate at all during rotation of the ring gear of the bevel gear, and the posture can be maintained as it is. Even if the length of the hexagonal bar is long, deflection of the hexagonal bar is prevented.

Also, the bevel gear housing and the filter plate are pressed and pulled at the same time, although the connection between the bevel gear housing and the bracket on the top of the filter plate is broken.

According to the filter press according to the fourth embodiment of the present invention, the following effects are produced.

The inner surface of the filter cloth and the surface of the filter plate can not be cleaned at all by cleaning the outer surface of the filter cloth (that is, the surface which is in contact with the sludge during dewatering and exposed to the filter cloth). However, in the fourth embodiment of the present invention, Both the inner surface and the surface of the filter plate can be cleaned together.

In addition, a pressurized water tank, a pressurized water pump, and a section of the pressurized water supply line used in the membrane type filter press can be utilized as a configuration for supplying wash water.

According to the filter press according to the fifth embodiment of the present invention, the following effects are produced.

Even if the sealing member is in a state where the sealing member can not properly perform the sealing function owing to the reduction in the elasticity due to the curing of the sealing member and the initial processing error or the like, at least one of the sealing reinforcing member for the front plate and the sealing reinforcing member for the pressure plate is operated, The sealing function can be additionally reinforced.

According to the filter press according to the sixth embodiment of the present invention, the following effects are produced.

The upper and lower limits of the filter cloths are detected by a pair of limit switches mounted on a pair of arms and frames mounted on a lifting chain of the outermost filter cloth, and the upper and lower limits of the filter cloths are detected by a simple configuration.

In addition, since the rod of the hydraulic cylinder for moving the filter plates is constituted by a multi-stage rod, the overall length of the filter press is shortened.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a plan view of a typical filter mobile filter press.

FIG. 2 is a longitudinal sectional view showing a filtering plate and a filter cloth of the filter moving filter press shown in FIG. 1. FIG.

3 is a perspective view showing a filter press according to a first embodiment of the present invention.

4 is a cross-sectional view taken along line A-A 'of Fig. 3;

5 is a partial perspective view showing a filter press according to a second embodiment of the present invention.

6 is a partially exploded perspective view showing an enlarged view of a portion A in Fig.

7 is a partial perspective view showing a filter press according to a third embodiment of the present invention.

Fig. 8 is a partially exploded perspective view showing an enlarged view of a portion A in Fig. 7. Fig.

9 is a partial perspective view showing a modified example of the filter press shown in Fig.

10 is a partially exploded perspective view showing an enlarged view of a portion A in Fig.

11 shows a case where the filter press according to the fourth embodiment of the present invention is a filter press which is a filter cloth movable type.

12 and 13 are a front view and a side view showing a washing water flow in the filter plate shown in Fig.

Figs. 14 and 15 show a case where the filter press according to the fourth embodiment of the present invention is a filter cloth fixed filter press.

16 is a sectional view partially showing a filter press according to a fifth embodiment of the present invention.

17 is a perspective view showing the sealing reinforcement member for the front plate of Fig. 16;

18 is a perspective view showing the sealing reinforcement member for the pressure plate of Fig. 16;

Fig. 19 is a front view showing the filter plate of Fig. 16; Fig.

20 and 21 are perspective views partially showing a filter press according to a sixth embodiment of the present invention.

Hereinafter, preferred embodiments of the filter press according to the present invention will be described in detail with reference to the drawings. It is to be understood that the terminology or words used herein are not to be construed in an ordinary sense or a dictionary, and that the inventor can properly define the concept of a term to describe its invention in the best possible way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

< 일반적인 여과포 이동식 필터 프레스 ><General filter cloth movable filter press>

A typical filter mobile filter press 10 will be described below with reference to FIGS. 1 and 2. FIG.

The filter movable filter press 10 includes a frame, a pressure plate 20, filter plates 30, and a hydraulic cylinder 40 as shown in FIG.

The frame includes a front plate (12) and a back plate (14) which are apart from each other in the front-rear direction. The frame also includes a pair of support rods 116 spaced apart from each other in the lateral direction. Both ends of the rods 116 are fixed to the front plate 112 and the back plate 14.

The pressure plate 20 is positioned between the front plate 12 and the back plate 14 as shown in FIG. 1, and is coupled with the support 16 so as to perform a sliding motion along the front-rear direction. The pressure plate 20 is connected to the forefront filter plate 30 through a chain 22.

The filter plates 30 are positioned between the pressure plate 20 and the back plate 14 as shown in FIG. 1 and are coupled to the support 16 so as to perform sliding movement along the front-rear direction. In addition, adjacent filter plates 30 are connected by chain 22.

The hydraulic cylinder 40 is for moving the pressing plate 20 in the front-rear direction, and is mounted on the front plate 12 as shown in FIG. The rod (42) of the hydraulic cylinder (40) is fixed to the pressure plate (20).

When the hydraulic cylinder 40 is operated and the rod 42 is pulled out in the above-described filter mobile filter press 10, the pressure plate 20 is moved toward the back plate 14 while being pushed by the rod 42. At this time, the filter plates 30 are moved toward the back plate 14 while being pushed by the pressure plate 20, and reach the closed state (closed plate state) in a state of being in close contact with each other as shown in FIG. On the other hand, when the hydraulic cylinder 40 is operated and the rod 42 is pulled in the closed state, the pressure plate 20 is pulled by the rod 42 and moved toward the front plate 12. At this time, the filter plates 30 connected to the chain 22 move to the front plate 12 while being attracted by the pressure plate 20, and then open to the open state (open state) in which the filter plates 30 are separated from each other as shown in FIG.

When the sludge is press-fitted into the filter plates 30 in the state where the filter plates 30 are closed, dehydration of the sludge is performed. In order to dewater the sludge, a filter cloth 50 is required, and the filter press 10 includes a plurality of filter cloths 50.

As shown in FIG. 2, the filter cloth 50 is provided in a form in which a pair of bags are overlapped with each other. An upper end rod 56 is provided at the upper end of the filter cloth 50. A first lower end rod 58a is provided at the lower end of one of the pair of cannons and a second lower end rod 58b is provided at the lower end of the remaining cannon Lt; / RTI >

Further, a sludge passing plate 52 is provided at the upper center of the filter cloth 50. The sludge passing plate 52 has a sludge passing hole 52a through which the pressurized sludge passes. The sludge passing plate 52 is also provided with a sludge supplying path 52b positioned at a part of the inner circumferential surface of the sludge passing hole 52a. The sludge supplying path 52b allows the sludge to flow from the sludge passing hole 52a It can be fed into a pair of guns.

The filter cloth 50 thus formed is positioned between the filter plates 30 as shown in FIG. The sludge passing hole 52a of the sludge passing plate 52 communicates with the sludge passing hole 34 of the filter plate 30 and the sludge passing hole 34 of the filter cloth 50 is partially (hereinafter, referred to as a "contaminated portion") of the portion (b) is pressed by the filter plate 30 and abuts on the pair of bags, A female room 54 is provided, which is a space between the pair.

When the sludge is pushed in the closed state, the sludge passes through the sludge passing hole 52a of the sludge passing plate 52, the sludge passing hole 34 of the filtering plate 30, and the sludge supplying passage 52b of the sludge passing plate 52, And is supplied to the filter chamber 54 of all the filter cloths 50. [ In the filtration chamber 54, dewatering of the sludge is performed by the pressure input. At this time, the filtrate passes through the filter cloth 50 and the sludge cake remains in the filtration chamber 54. On the other hand, the filtrate having passed through the filter cloth 50 is moved downward along the gap between protrusions (not shown) provided on the retraction surface 32 of the filter plate 30, And is discharged to the outside of the filter plate 30. [

When the sludge is dewatered for a predetermined period of time, the filter plates 30 are opened. At this time, the sludge cake falls freely from the chamber 54. Thereafter, the filter cloth 50 is lowered to remove the sludge cake remaining in the contaminated portion (a) of the filter fabric 50. The filter cloth 50 descending to the lower limit is raised again to its original position. On the other hand, when the filter cloth 50 is moved up and down, the filter cloth 50 is cleaned by the washing water sprayed from the washing water spray tube 92.

For the lifting movement, the filter cloth 50 is connected to the lifting chain 78 as shown in FIG. Specifically, the upper end rod 56 of the filter cloth 50 is coupled to the upper end of the lifting chain 78, and the first and second

lower end rods

58a and 58b of the filter cloth 50 are connected to the lifting chain 78, As shown in FIG. All of the filter cloths 50 can simultaneously ascend and descend when the coupling relationship between the filter cloth 50 and the lifting chain 78 is as described above.

The lifting chain (78) is suspended at both ends of the neck shrinkage (76). Therefore, when the hunting shrinkage 76 rotates in the forward direction, the filter cloth 50 descends. When the hunting shrinkage filter 76 rotates in the reverse direction, the filter cloth 50 rises.

One end of the hinge shaft 76 is coupled to the hexagonal bar 74 through a bevel gear 77 as shown in Fig. 1 and the opposite end is connected to a bracket 75 fixed to the upper end of the filter plate 30, Lt; / RTI > The bevel gear 77 moves along the hexagonal bar 74 when the filter plates 30 are moved in the forward and backward directions and transmits the rotational force of the hexagonal bar 74 to the hull axis 76. [ 1, the hexagonal rod 74 is connected to the driving shaft 72 through another bevel gear 72a, and the driving shaft 72 is connected to the front plate 12 And is connected to the motor 70. And the rear end of the hexagonal bar 74 is rotatably coupled to the upper end of the rear plate 14. [

When the motor 70 is operated in the filtration chamber 10, the filter cloth 50 ascends or descends while the drive shaft 72, the hexagonal bar 74, and the head shrinkage 76 rotate.

< 개선된 구조의 베벨기어 하우징을 갖는 필터 프레스 - 제1실시예 >&Lt; First Embodiment of Filter Press with Bevel Gear Housing of Improved Structure >

1 to 4, a bevel gear housing 100 provided in a filter press according to a first embodiment of the present invention, that is, a filter movable filter press will be described below. The reference numerals recited in the description of the first embodiment below are defined in Figs.

The bevel gear housing 100 provided in the first embodiment of the present invention includes a bevel gear 77, a ring bearing 110, and a housing 130.

The bevel gear 77 has a structure in which the ring gear 77a and the pinion gear 77b are vertically engaged with each other. The ring gear 77a is coupled to the hexagonal bar 74 so as to penetrate the hexagonal bar 74. Therefore, the ring gear 77a may rotate together with the hexagonal bar 74 and move in the front-rear direction along the hexagonal bar 74. [

The pinion gear 77b is rotatably installed on one of the left and

right brackets

73 and 75 fixed to left and right ends of the upper surface of each of the filter plates 30 and is installed alternately left and right along the front and rear direction. For example, if a pinion gear 77b is provided on the right bracket 75 as shown in FIG. 3, the pinion gear 77b adjacent to the pinion gear 77b is positioned on the left side of the filter plate 30 adjacent to the filter plate 30, (73). The pinion gear 77b is fixed to one end of the neck shrinkage 76. [ Therefore, when the pinion gear 77b rotates due to the rotation of the ring gear 77a, the pinion gear 77b is rotated together with the pinion gear 77b.

On the other hand, the other end (for example, right end) of the contraction shaft 76 located on the opposite side of one end (for example, left end) of the hinge shaft 76 engaged with the pinion gear 77b is connected to the pinion gear 77b (For example, the right bracket 75). At the left and right ends of the neck shrinkage 76, there is provided a sprocket 76a to which a lifting chain 78 for supporting the filter cloth 50 is caught.

The ring bearing 110 includes an inner ring 112, a bearing 116, and an outer ring 114 as shown in FIG.

The inner ring 112 is fixed to the ring gear 77a so as to surround the ring gear 77a. Therefore, when the ring gear 77a rotates, the inner ring 112 also rotates together. The bearings 116 are arranged on the outer circumferential surface of the inner ring 112 so as to be spaced apart in the front-rear direction and a pair of the bearings 116 are arranged along the circumferential direction. At this time, the upper bearings 116 are seated in the seating grooves formed on the outer peripheral surface of the inner ring 112 so as not to be separated from the mounting position.

The outer ring 114 surrounds the bearings 116 so that the inner circumferential surface 114a of the outer ring 114 abuts against the bearings 116. [ Thus, the outer ring 114 allows the inner ring 112 to rotate. Also, the outer ring 114 may be twisted with respect to the inner ring 112. 4 (b), the outer ring 114 may be twisted to the right with respect to the inner ring 112 as shown in FIG. 4 (b) . &Lt; / RTI > The inner circumferential surface 114a of the inner ring 114 is formed of a concave circular arc surface as shown in Fig. 4 so that the contact between the bearings 116 and the inner circumferential surface 114a of the outer ring 114 is maintained .

The housing 130 includes a first portion 130a and a second portion 130b that are detachably coupled by bolts (not shown). When the first part 130a and the second part 130b are coupled to each other, the outer ring 114 housed in the first part 130a is gripped between the two

upper parts

130a and 130b. The first portion 130a is disposed around the ring gear 77a so that the first portion 130a and the ring gear 77a are spaced apart from each other by a small distance between the inner circumferential surface of the first portion 130a and the outer circumferential surface of the ring gear 77a, And a gap 131a is formed. For the same reason, a slight gap 131b is also provided between the inner circumferential surface of the second portion 130b and the outer circumferential surface of the ring gear 77a.

The first portion 130a of the housing 130 is fixed to the

brackets

73 and 75 provided with the pinion gear 77b among the left and

right brackets

73 and 75 on the upper end of the filter plate 30. [ Therefore, when the filter plate 30 moves in the front-rear direction, the housing 130 also moves in the front-rear direction, so that the ring bearing 110 and the ring gear 77a also move in the forward and backward directions.

The housing 130 has a pair of

escape grooves

132 and 134 which are respectively positioned at front and back sides of the ring bearing 110 when the first portion 130a and the second portion 130b are coupled. The

upper escape grooves

132 and 134 are provided in a circular shape and are provided to have a diameter larger than the inner diameter of the outer ring 114 and smaller than the outer diameter. Therefore, when the housing 130 and the outer ring 114 are turned with respect to the inner ring 112 as shown in Figs. 4B and 4C (this deformation occurs when the filter plate is tilted to the left and right) 112 and the bearing 116 are partially inserted into the

upper escape grooves

132, 134. One of the pair of

escape grooves

132 and 134 is provided in the first portion 130a of the housing 130 and the other is provided in the second portion 130b.

According to the bevel gear housing 100 as described above, when the filter plate 30 is moved back and forth, the left end (or the right end) of the bevel gear housing 100 is advanced further than the right end (or the left end) The front and rear of the filter plate 30 can be smoothly advanced. Hereinafter, this will be described in detail.

When the filter plates 30 are moved from the open state to the closed state, the front filter plates 30 move backward, and the filter plates 30 are sequentially brought into contact with each other. In this process, . Also, the left and right tilts occur when the filter plates 30 are moved from the closed state to the open state.

If the left and right tilting of the filter plates 30 occurs and accumulates in the various filter plates 30, the ring gear 77a tightly fits into the hexagonal bar 74, The housing 130 is broken or the left and

right brackets

73 and 75 are broken or the neck shrinkage 76 is destroyed by pressing the filter plates 30 backward.

In the first embodiment of the present invention, however, only the housing 130 and the outer ring 114 are rotated together with the filter plate 30 when the filter plate 30 is tilted to the left or to the right only when the bearing 116, the inner ring 112, The gear 77a is not rotated at all. Therefore, according to the first embodiment of the present invention, the ring gear 77a does not interfere with the hexagonal bar 40 even when the filter plate 30 is tilted to the left or right, so that the housing 130 is broken, , 75), and problems such as destruction and contraction (76) destruction will not occur.

Meanwhile, the upper bevel gear housing 100 includes the following additional features.

A pair of sealing members 150 made of a rubber material abuts against the outer circumferential surface of the ring gear 77a on the inner surface of the housing 130 facing the pair of

escape grooves

1132 and 134, 77a are rotated. In order to smoothly operate the ring bearing 115, lubricant is previously injected into the housing 130, and the upper sealing member 150 is installed to prevent leakage of the lubricant. One of the upper sealing members 150 is provided in the first portion 130a of the housing 130 and the other is provided in the second portion 130b.

The sealing member 150 is in contact with the outer circumferential surface of the ring gear 77a as described above so that the deformation of the housing 130 and the outer ring 114 must be ensured when the filter plate 30 is tilted to the left and right . Accordingly, the sealing member 150 is made of a rubber material. Further, when the groove is formed on one surface of the sealing member 150, it is possible to more surely prevent the housing 130 and the outer ring 114 from being twisted.

At this time, the groove has a ring shape formed to extend along the circumferential direction on one surface of the sealing member 150 facing the

escape grooves

132, 134. When the grooves are formed, the sealing member 150 is easily deformed, so that the housing 130 and the outer ring 114 can be surely prevented from being deformed. On the other hand, when the groove is provided in the sealing member 150, a ring-shaped spring 152 for tightening the sealing member 150 toward the outer peripheral surface of the ring gear 77a may be fastened to the groove.

Next, from one of the front and rear surfaces of the housing 130, a stopper 160 is provided so as to extend in the front-rear direction. 3 and 4 show an example in which the stopper 160 extends forward from the front surface of the housing 130. As shown in Fig. Further, the stoppers 160 provided in the housing 130 all have the same length. The length of the stopper 160 is set equal to the distance between the adjacent housings 130 when the filter plates 30 are in contact with each other, that is, the "separation distance at the closing plate ".

It has been described that the filter plates 30 are moved in the forward and backward directions smoothly even when the filter plate 30 is moved in the left and right direction and the left and right side buckling occurs in the present embodiment. However, when the filter plate 30 moves in the forward and backward directions, not only the left and right side tilts but also the up and down side tilts. That is, since the center of gravity of the filtration plate 30 is located at the lower side, when the filtration plates 30 in the open state are sequentially pushed backward, the upper ends of the filtration plates 30 are further backward Tilting, that is, upward and downward tilting occurs. When the up and down tilts are accumulated in the various filter plates 30 and accumulated, the same failure phenomenon occurs when the left and right tilts are accumulated.

However, when the stopper 160 is provided as in the present embodiment, the front first filter plate 30 (for example, the frontmost one in Fig. 3) having the upward and downward tilt is supported by the second filter plate 30 (For example, the second one from the front in Fig. 3) is pushed to the third filter plate 30 behind the second filter plate 30 The stopper 160 of the third filter plate 30 comes into contact with the bracket 75 of the first filter plate 30 to stop the advancement of the upper end of the first filter plate 30. Then, Only the lower end advances a little further, and the upward and downward inclination of the first filter plate 30 disappears.

The stopper 160 may be replaced with a shock absorber (not shown) or may be used together. A shock absorber (for example, an industrial shock absorber manufactured by koba) is configured to receive an elastic force in a direction in which the piston is drawn out from the cylinder. When the piston receives an external force, it is pulled into the cylinder while overcoming the elastic force. When this external force disappears, it returns to the original position by the elastic force. The normal length of the shock absorber is set to be slightly longer than the above "separation distance at the closing plate ".

Even when such a shock absorber is used, as in the case where the stopper 160 is used, the first filter plate 30 having the upward and downward tilt is supported by the second filter plate 30 on the rear side of the second filter plate 30, The upper and lower tilts of the first filtering plate 30 disappear as the shock absorber of the third filtering plate 30 comes into contact with the bracket 73 of the first filtering plate 30 when the first filtering plate 30 is pushed up to the filtering plate 30.

The time when the shock absorber of the third filter plate 30 comes into contact with the bracket 75 of the first filter plate 30 is slightly faster than when the stopper 160 is used and the shock absorber of the third filter plate 30 is the first The piston of the shock absorber is slightly drawn into the cylinder when it comes into contact with the bracket 75 of the filter plate 30. [

< 여과판과 분리된 현수축을 갖는 필터 프레스 - 제2실시예 >&Lt; Second Example of Filter Press with Hypo-contraction Separated from Filter Plate >

Hereinafter, a filter press according to a second embodiment of the present invention will be described with reference to FIGS. 1, 2, 5 and 6, that is, a filter cloth movable filter press having a contraction shaft separated from a filter plate. The reference numerals recited in the description of the second embodiment below are limited to Figs. 1, 2, 5 and 6.

5 and 6, a filter press 100 according to a second embodiment of the present invention includes a hinge shoe 76, a hinge shoe housing 140, a bevel gear 77, a bevel gear housing (not shown) 130, a rail 120, and a tow chain 110.

The hinge shafts 76 are provided to extend in the left-right direction from the upper portions of the filter plates 30 arranged in the front-rear direction. A sprocket 76a is provided on the right and left sides of the neck shrinkage 76 so that the lifting chain 78 hanging the filter cloth 50 hangs thereon.

Conventionally, a bracket 75 (not shown) for supporting the left and right ends of the neck shrinkage 76 is fixed to the upper left and right ends of the upper surface of the filter plate 30. However, in the present invention, the brackets 75 (not shown) are not provided, and the left and right ends of the neck shrinkage 76 are supported by the hull contraction housing 140 and the bevel gear 77. Specifically, same.

The hysteretic shrink housing 140 is coupled to the left and right ends of the hysteretic shrinkage 76 and alternately left and right as it goes back and forth as shown in Figures 5 and 6. Therefore, if the present contraction housing 140 is engaged with the left end of the contraction axis 76 in any one of the neighboring contraction shafts 76, the other contraction axis 76 is engaged with the right end thereof.

The hysteresis shrinking housing 140 also engages with the left or right end of the hysteretic shrinkage 76 via a bearing (not shown). Therefore, even if the hip shrinkage 76 rotates around an axis extending in the left and right direction, the hip shrinkage housing 140 maintains its posture.

The present shrinking housing 140 has a through hole 144 through which the hexagonal bar 74 penetrates. A bearing (not shown) is interposed between the inner surface of the through hole 144 and the outer surface of the hexagonal bar 74 have. Therefore, even if the hexagonal bar 74 rotates about an axis extending in the front-rear direction, the contraction-resistant housing 140 maintains its posture.

The pinion gear 77b is vertically engaged with the ring gear 77a. Therefore, when the ring gear 77a rotates about the axis extending in the front-rear direction due to the rotation of the hexagonal bar 74, the pinion gear 77b rotates around the axis extending in the left-right direction. The rotary shaft 77b-1 of the pinion gear 77b is fixed to an end portion of the left and right ends of the hysteresis shrinkage shaft 76 where the present shrinkage housing 140 is not fastened. Therefore, when the pinion gear 77b rotates, the contraction 76 also rotates.

The bevel gear housing 130 surrounds a rotary shaft (not shown) of the ring gear 77a so as to be movable along the hexagonal bar 74 together with the ring gear 77a. A bearing (not shown) is provided between the bevel gear housing 130 and the rotation shaft of the ring gear 77a. Even if the ring gear 77a rotates together with the hexagonal bar 74, the bevel gear housing 130 does not rotate The posture can be maintained as it is.

The bevel gear housing 130 also surrounds the rotary shaft 77b-1 of the pinion gear 77b. At this time, a bearing (not shown) is also provided between the bevel gear housing 130 and the rotary shaft 77b- City). Therefore, even if the pinion gear 77b rotates, the bevel gear housing 130 is not rotated.

The bead gear 76 is connected to the bevel gear 77 while being supported by the left and right brackets 75 (not shown) on the upper surface of the filter plate 30. However, in the present embodiment, the contraction 76 is supported by the bevel gear 77 and the hysteretic housing 140, and the upper left and right brackets 75 (not shown) are not provided on the upper surface of the filter plate 30, The shrinkage 76 and the filter plate 30 are separated from each other. Therefore, in the present embodiment, the conventional problem of the ring gear 77a of the bevel gear 77 being stuck in the hexagonal bar 74 does not occur at all, which will be described in detail as follows.

When the filter plates 30 are moved from the open state to the closed state, the front filter plates 30 move backward and the filter plates 30 are in contact with each other. In this process, A slight or more advance than the end, that is, left and right side deviations occur. This right and left deviation occurs even when the filter plates 30 are moved from the closed state to the open state.

In addition, when the filter plate 30 moves in the front-rear direction, not only the left and right side tilts but also the up-and-down side tilts. That is, since the filter plate 30 has a structure in which the center of gravity thereof is located at a lower position, when the filter plates 30 in an open state are sequentially pushed backward, the tops of the filter plates 30 are slightly lower Tilting occurs, that is, upward and downward tilting occurs.

However, if the contraction 76 is connected to the bevel gear 77 while being supported by the left and right brackets 75 (not shown) on the upper surface of the filter plate 30 as in the prior art, The tilting occurs as it is in the contraction 76. And the upper left and right tilting and / or the vertical tilting are generated and accumulated in the various filter plates 30, the ring gear 77a is tightly caught in the hexagonal bar 74, The pressing of the filter plates 30 to the rear causes the problems such as the breakage of the bevel gear 77 or the breaking of the bracket 75 (not shown) or the breakage of the contraction 76.

However, in the present embodiment, since the neck shrinkage 76 is supported by the bevel gear 77 and the contraction shrink housing 140 while being separated from the filter plate 30, the left and right tilting of the filter plate 30 and / The contraction 76 can be maintained in the posture without being influenced by the up-and-down tilting and / or the vertical tilting. Therefore, in this embodiment, even if the filter plate 30 is tilted leftward and rightward and / or tilted up and down, the ring gear 77a of the bevel gear 77 does not catch on the hexagonal bar 74, (77) breakage, breakage of the bracket (75, not shown), contraction of the neck (76), and the like. In addition, in this embodiment, the rotational force of the pinion gear 77b is transmitted as it is to the contraction shaft 76 as is conventionally done.

Meanwhile, the filter press 100 according to the present embodiment includes the rails 120 for supporting the bevel gear housing 130 and the hysteretic shrink housing 140 described above.

The rail 120 extends parallel to the hexagonal bar 74 at the bottom of the hexagonal bar 74. The front end of the rail 120 is fixed to the front plate 12 and the rear end of the rail 120 is fixed to the rear plate 14. [

The rail 120 is inserted into a guide groove 132 provided on the lower surface of the bevel gear housing 130 and a guide groove 142 provided on the lower surface of the hysteretic housing 140. The portions of the rails 120 that come into contact with the

housings

130 and 140 in the

upper guide grooves

132 and 142 are lined with the

housings

130 and 140 along the rails 120 So as to smoothly slip in the direction shown in FIG.

The cross section of the upper rail 120 may be provided in an inverted trapezoidal shape as shown in the drawing, or may be provided in an inverted trapezoid or a rectangular shape although not shown.

The rails 120 support the contraction housing 140 and the bevel gear housing 130 and the

upper housings

140 and 130 support the left and right ends of the

contraction shafts

76, 120 perform the function of supporting the contraction 76.

As described above, when the hexagonal bar 74 rotates, the ring gear 77a and the pinion gear 77b of the bevel gear 77 rotate, and the present shrinkage 76 also rotates. When the hexagonal bar 74 rotates, 140 also hold the

upper housings

130, 140 so that the bevel gear housing 130 and the hysteretic housing 140 can maintain their posture even if the current shrinkage 76 rotates.

In this case, the hexagonal rod 74 has its own weight, a plurality of bevel gears 77, and a plurality of bevel gears 76. In this case, And due to the weight of the

various housings

130, 140. The rail 120 supports the hexagonal bar 74 itself, the weight of the bevel gears 77 and the weight of the

housings

130 and 140. The upper rail 120 is supported by the hexagonal rods 74 And also performs a sag prevention function.

The towing chain 110 connects the neighboring bevel gear housing 130 and the current-shrinking housing 140. And the length of the pulling chain 110 is set such that when the filter plates 30 are in the open state, the neck shrinkage 76 is located at the top of the filter plate 30. [

The contraction 76 is supported by the left and right brackets 75 (not shown) on the upper surface of the filter plate 30 so that the filter plates 30 connected to the chain 22 are sequentially pulled and pulled forward, 76) were also towed automatically forward. However, in the present embodiment, the filter plates 30 connected to the chain 22 are pulled forward while falling down in the conventional manner, the bead gear housings 130 connected to the tow chain 110, When the current-shrinkable housing 140 is sequentially pulled down and pulled forward, it is pulled forward together. On the other hand, the length of the pulling chain 110 is set such that when the filter plates 30 are placed in the open state, the neck shrinkage 76 is positioned above the filter plate 30.

In the prior art, the contraction shafts 76 are fixed to the left and right brackets 75 (not shown) on the upper surface of the filter plate 30. When the filtration plates 30 are in contact with each other and pushed backward sequentially, the contraction shafts 76 are automatically I was pushed backward one by one. However, in the present embodiment, the filter plates 30 are pushed rearward while abutting in the same manner as in the prior art, and the bevel gear housing 130 and the current-shrink housing 140, which are alternately arranged in the front- When pushing against the rear, push it backward together. On the other hand, the forward and backward lengths of the haptic contraction housing 140 are set such that the contraction axis 76 is located above the filter plate 30 when the filter plates 30 are placed in the closed plate state.

The pressure plate 20 of the filter press 100 according to the present embodiment is coupled to the support table 16 so as to be able to slide in the forward and backward directions between the front plate 12 and the back plate 14, And left and right brackets 22 slidably penetrating the hexagonal bar 74 are provided on left and right upper sides of the top surface of the hexagonal bar 74. The rod 42 of the hydraulic cylinder 40 is fixed .

5, the left and right brackets 22 of the pressure plate 20 are connected to the bevel gear housing 130 and the hysteretic shrink housing 140 coupled to the left and right ends of the foremost hysteretic shrinkage 76, And is connected to a towing chain 110. Therefore, when the pressure plate 20 is advanced by the operation of the hydraulic cylinder 40, the forefront filtration plate 30 is pulled forward and the forefront column shrinkage 76 is pulled forward together with the left and

right housings

130 and 140, The rear filter plates 30 and the contraction shafts 76 are pulled forward one after another.

In this embodiment, the left and right brackets 22 of the pressure plate 20 are brought into abutment with the bevel gear housing 130 and the hysteretic shroud housing 140, which are coupled to the left and right ends of the foremost suspension shrinkage 76, do. Therefore, when the pressure plate 20 is retreated by the operation of the hydraulic cylinder 40, the forefront filtration plate 30 is pushed rearward and the forefront contraction 76 is pushed backward together with the left and

right housings

130 and 140, The rear filter plates 30 and the contraction shafts 76 are then pushed backward in sequence.

Further, in this embodiment, the right and left brackets 22 of the pressure plate 20 slide through the rails 120 in a slidable manner.

< 유니버셜 조인트 또는 플렉서블 샤프트를 갖는 필터 프레스 - 제3실시예 ><Universal joint or filter press having a flexible shaft - Third embodiment>

Hereinafter, a filter press according to a third embodiment of the present invention, that is, a filter cloth movable filter press having a universal joint or a flexible shaft will be described with reference to FIGS. 1 and 2, and FIGS. Reference numerals recited in the description of the third embodiment below are defined in Figs. 1 and 2, and Figs. 7 to 10.

7 and 8, the filter press 100 according to the third embodiment of the present invention includes the filter shrinkage shrinkage 76, the universal joint 150, the bevel gear 77, the bevel gear housing 130, a rail 120, a housing stopper 160, and a tow chain 110.

The filter contraction 76 is supported by left and

right brackets

73 and 75 fixed to left and right ends of the upper surface of each of the filter plates 30 arranged in the front-rear direction via bearings. Accordingly, the filter contraction 76 can be rotated about the axis extending in the left-right direction while being supported by the left and

right brackets

73 and 75. At the left and right ends of the filter contraction 76, there is provided a sprocket 76a to which a lifting chain 78 suspending the filter cloth 50 is caught.

The universal joint 150 is a joint that includes two

portions

152 and 154 that allow angular variation with respect to each other while allowing the rotational force of one portion to be transmitted to the other portion as it is well known. In the present invention, the first portion 152, which is one of the two

portions

152 and 154 of the universal joint 150, is fixed to the left and right ends of the filter cloth contraction 76, do. Thus, if the first portion 152 of the universal joint 150 is fixed at the left end of the filter shrinkage 76 in either of the neighboring filter shrinkage shims 76, then in the remaining one filter shrinkage shrinkage 76, And fixed to the right end.

The pinion gear 77b is vertically engaged with the ring gear 77a. Therefore, when the ring gear 77a rotates about the axis extending in the front-rear direction due to the rotation of the hexagonal bar 74, the pinion gear 77b rotates around the axis extending in the left-right direction. The rotary shaft 77b-1 of the pinion gear 77b is fixed to a portion of the two

portions

152 and 154 of the universal joint 150 that is not engaged with the filter shrinkage 76, do. Therefore, when the pinion gear 77b rotates, both the universal joint 150 and the filter cloth contraction 76 rotate.

The bevel gear housing 130 surrounds a rotary shaft (not shown) of the ring gear 77a so as to be movable along the hexagonal bar 74 together with the ring gear 77a. A bearing (not shown) is provided between the bevel gear housing 130 and the rotary shaft of the ring gear 77a so that the bevel gear housing 130 does not rotate even if the ring gear 77a rotates together with the hexagonal bar 74 do.

The bevel gear housing 130 also surrounds the rotary shaft 77b-1 of the pinion gear 77b. At this time, a bearing (not shown) is also provided between the bevel gear housing 130 and the rotary shaft 77b- City). Therefore, even if the pinion gear 77b rotates, the bevel gear housing 130 is not rotated. The end of the pinion gear rotational shaft 77b-1 is slightly protruded to the outside of the bevel gear housing 130 so as to be fixed to the second portion 154 of the universal joint 150. [

Conventionally, the bevel gear housing 130 is fixed to the left and

right brackets

73, 75 on the upper surface of the filter plates 30. However, in the third embodiment of the present invention, the connection between the bevel gear housing 130 and the left and

right brackets

73 and 75 is cut off, and the pinion gear 77b and the filter cloth suspension shrinkage 76 are connected to the universal joint 150 . Therefore, in the present embodiment, the conventional problem that the ring gear 77a is caught in the hexagonal bar 74 does not occur at all, which will be described in detail as follows.

When the filter plates 30 are moved from the open state to the closed state, the front filter plates 30 move backward and the filter plates 30 are in contact with each other. In this process, I.e., the right and left side deviations occur due to the forward movement or the less forward movement. This right and left deviation occurs even when the filter plates 30 are moved from the closed state to the open state.

In addition, when the filter plate 30 moves in the front-rear direction, not only the left and right side tilts but also the up-and-down side tilts. That is, since the center of gravity of the filtration plate 30 is located at the lower side, when the filtration plates 30 in the open state are sequentially pushed backward, the upper ends of the filtration plates 30 are further backward Tilting, that is, upward and downward tilting occurs.

However, when the bearing housing 130 is fixed to the left and

right brackets

73 and 75 of the filter plate 30, the left and right tilts and / or tilts of the filter plates 30 are generated in the various filter plates 30 The hydraulic cylinder 40 continues to press the filter plates 30 to the rear despite the fact that the ring gear 77a is tightly fitted to the hexagonal bar 74 and can not move backward, 130), or the

brackets

73, 75 are broken or the contraction (76) is broken.

However, in the third embodiment of the present invention, the connection between the bearing housing 130 and the left and

right brackets

73 and 75 is disconnected, and only the left or right end of the filter cloth suspension shrinkage 76 is connected to the pinion gear 77b So that the second portion 154 of the universal joint 150 maintains its posture even when the filtration plate 30 is tilted leftward and rightward and / or tilted upward and downward, Only the angle of the first portion 152 with respect to the second portion 154 is changed. Therefore, in the third embodiment of the present invention, the ring gear 77a of the bevel gear 77 is prevented from being caught by the hexagonal bar 74, and therefore, the housing 130, the

brackets

73 and 75, Shrinkage (76) Destruction does not occur at all. In the present embodiment, the rotational force of the pinion gear 77b is transmitted through the universal joint 150 to the filter shrinkage 76 as it is.

Meanwhile, the rail 120 extends parallel to the hexagonal bar 74 at the bottom of the hexagonal bar 74. The front end of the rail 120 is fixed to the front plate 12 and the rear end of the rail 120 is fixed to the rear plate 14. [ The rail 120 is inserted into a guide groove 132 provided on the lower surface of the bevel gear housing 130. A portion of the rail 120 that is in contact with the bevel gear housing 130 in the upper guide groove 132 is lined so that the bevel gear housing 130 slides smoothly in the forward and backward directions along the rail 120 It is to be able to do.

As described above, when the hexagonal bar 74 rotates, the ring gear 77a of the bevel gear 77 also rotates. Even if the ring gear 77a rotates, the upper rail 120 rotates the bevel gear housing 130 at all And holds the bevel gear housing 130 so that the posture can be maintained.

In this case, the hexagonal rod 74 has its own weight, a plurality of bevel gears 77, and a plurality of bevel gears 76. In this case, Due to the weight of the bevel gear housing 130 and the weight of the bevel gear housing 130. However, the rail 120 supports the hexagonal rod 74 itself, the weight of the bevel gears 77 and the weight of the bevel gear housings 130, and the upper rail 120 is supported by the hexagonal rods 74 And also performs a sag prevention function.

The guide groove 132 is provided on the lower surface of the bevel gear housing 130 and the rail 120 is inserted into the guide groove 132. [ However, the upper guide groove 132 may be provided on the side surface of the bevel gear housing 130 (the seating surface of the bevel gear housing 130 in the case of FIG. 8, for example). Also in this case, the rail 120 functions to prevent the hexagonal bar 74 from sagging and hold the bevel gear housing 130.

The housing stopper 160 is provided to extend in the front-rear direction from any one of the front and rear surfaces of the bevel gear housing 130. Figs. 7 and 8 show an example in which the housing stopper 160 extends forward from the front surface of the bevel gear housing 130. Fig.

In addition, the housing stoppers 160 provided in the respective bevel gear housings 130 all have the same length. The length of the housing stopper 160 is set such that the distance between the bevel gear housings 130 adjacent to each other when the filter plates 30 are in contact with each other is shorter than the distance between the filter plates 30 in the conventional filter press 10 Is set to be equal to the distance between adjacent bevel gear housings 130 when they are brought into contact with each other, that is, "the conventional separation distance at the closing plate ".

Accordingly, when the housing stopper 160 of a bevel gear housing 130 abuts the neighboring bevel gear housing 130, the distance between the two bevel gear housings 130 is equal to the distance " conventional distance " . For example, when the four filter plates 30 of FIG. 7 are all in contact, the housing stopper 160 of the right bevel gear housing 130, which is located second from the front, The distance between the first and second right bevel gear housings 130 is the same as "the conventional separation distance at the closing plate ".

Conventionally, when the bevel gear housing 130 is fixed to the left and

right brackets

73 and 75 of the filter plate 30 so that the filter plates 30 are in contact with each other and are pushed backward, the bevel gear housings 130 are automatically moved backward I was pushed in order. However, in the present invention, the filter plates 30 are pushed rearward while abutting one after another in the conventional manner, and the bevel gear housings 130 are pushed backward while coming into contact with the housing stopper 160 in order.

The housing stopper 160 may be replaced with a shock absorber (not shown) or may be used together. A shock absorber (for example, an industrial shock absorber manufactured by koba) is configured to receive an elastic force in a direction in which the piston is drawn out from the cylinder. When the piston receives an external force, it is pulled into the cylinder while overcoming the elastic force. When this external force disappears, it returns to the original position by the elastic force. The normal length of the shock absorber is set to be slightly longer than the length of the housing stopper 10. The stroke of the shock absorber is set to a distance obtained by subtracting the length of the shock absorber from the length of the shock absorber at the time when the distance between the bevel gear housings 130 is equal to the above-mentioned "

When such a shock absorber is used, the bevel gear housing 130 abuts against the piston of the shock absorber when the bevel gear housing 130 is pushed rearward, thereby exerting an external force on the piston so that the piston is slightly drawn into the cylinder, Quot; distance " in the upper "closing distance"

The towing chain 110 connects neighboring bevel gear housings 130 and is provided with the same length. The length of the pulling chain 110 is determined by the distance between adjacent bevel gear housings 130 when the filter plates 30 are placed in the open state in the conventional filter press 10, Quot; distance " Therefore, when the four filter plates 30 of FIG. 7 are all spaced apart from each other, that is, in the open state, the distance between the first and second right bevel gear housings 130 located at the front side Quot; distance "

The bevel gear housing 130 is fixed to the left and

right brackets

73 and 75 of the filter plate 30 so that when the filter plates 30 connected to the chain 22 are sequentially pulled and pulled forward, (130) was also automatically pulled forward. However, in the third embodiment of the present invention, the filter plates 30 connected to the chain 22 are pulled forward in descending order as in the prior art, and the bevel gear housings 130 connected to the pulling chain 110, (30) and are towed forward.

The pressure plate 20 is coupled with the support table 16 so as to be able to slide in the back and forth direction between the front plate 12 and the back plate 14 in the same manner as in the prior art. And left and

right brackets

22 and 24 for slidably passing through the hexagonal bar 74 are provided on left and right sides of the upper surface and the rod 42 of the hydraulic cylinder 40 is fixed.

7, the upper left bracket 22 is connected to the uppermost left bevel gear housing 130 and the tow chain 110, and the upper right bracket 24 is connected to the left upper side bevel gear housing 130. In addition, in the third embodiment of the present invention, And is connected to the frontmost right bevel gear housing 130 and the tow chain 110. When the pressure plate 20 is advanced by the operation of the hydraulic cylinder 40, the frontmost filter plate 30 is pulled forward and the frontmost left and right bevel gear housings 130 are pulled forward as well, and then the rear filter plates 30 And the left and right bevel gear housings 130 are pulled forward in order.

In the third embodiment of the present invention, the left bracket 22 is provided with a protruding portion 22a protruding rearward. The protruding portion 22a protrudes rearward when the stopper 160 of the foremost right bevel gear housing 130 engages with the right bracket 22, The left front bevel gear housing 130 comes into contact with the stopper 160 of the front left bevel gear housing 130 when the right front bevel gear housing 130 comes into contact with the stopper 160. [ Therefore, when the pressure plate 20 is moved backward by the operation of the hydraulic cylinder 40, the frontmost filter plate 30 is pushed rearward and the forefront left and right bevel gear housings 30 are also pushed rearward, 30 and the left and right bevel gear housings 30 are pushed backward in order.

7 shows that the frontmost right bevel gear housing 130 is provided on the uppermost filter plate 30 and the protruding portion 22a is provided on the left bracket 22. However, if the forefront left bevel gear housing 130 is provided on the foremost filter plate 30, the upper projecting portion 22a will be provided on the right side bracket 24.

Also, in the third embodiment of the present invention, the upper left and

right brackets

22 and 24 slidably pass the rails 120.

On the other hand, in the filter press 100 according to the modified example of the third embodiment, the universal joint 150 of the third embodiment is replaced with a flexible shaft 250 as shown in Figs. 9 and 10.

The flexible shaft 250 is a shaft which is provided so as to be able to rotate in all directions as well as to be able to transmit the rotation of one end portion 252 to the opposite end portion 254 as it is. In the modified example of the third embodiment, the first end portion 254, which is one of the opposite ends 252 and 254 of the flexible shaft 250, is fixed to the left and right ends of the filter cloth contraction 76, As shown in FIG. Thus, if the first portion 254 of the flexible shaft 250 is fixed at the left end of the filter shrinkage 76 in either of the neighboring filter shrinkage 76, then in the other filter shrinkage 76, And fixed to the right end.

The end portion of the flexible shaft 250 at both ends 252 and 254 which is not engaged with the filter cloth contraction 76 is fixed to the rotary shaft 77b-1 of the pinion gear 77b . Therefore, when the pinion gear 77b rotates, the rotation is transmitted to the filter shrinkage 60 through the flexible shaft 250, so that the filter shrinkage 76 also rotates. The rotation shaft 77b-1 of the pinion gear 77b is directed outward so as to be easily engaged with the second end 252 of the flexible shaft 250. [

The connection between the bearing housing 130 and the left and

right brackets

73 and 75 is disconnected and only the left or right end of the filter cloth suspension shrinkage 76 is connected to the pinion gear 77b of the bevel gear 77 Only the flexible shaft 150 is connected to the flexible shaft 250. Therefore, even if the filtration plate 30 is tilted leftward and rightward and / or tilted up and down, only the flexure of the flexible shaft 150 occurs. Therefore, in the modification of the third embodiment, the ring gear 77a of the bevel gear 77 does not come into contact with the hexagonal bar 74 at all, and therefore, the housing 130 is broken, the

brackets

73 and 75 are broken, Shrinkage (76) Destruction does not occur at all. In the above modification, the rotational force of the pinion gear 77b is transmitted through the flexible shaft 250 to the filter shrinkage 76 as it is.

< 여과포 및 여과판 동시 세척 장치 갖는 필터 프레스 - 제4실시예 >&Lt; Filter press with filtration apparatus and filter plate simultaneous cleaning device - Fourth embodiment >

11 to 15, a filter press according to a fourth embodiment of the present invention, that is, a filter cloth movable filter or filter cloth fixed filter press having a filter cloth and a filter plate simultaneous cleaning device will be described. The reference numerals quoted in the description of the fourth embodiment below are defined in Figs. 11 to 15.

As shown in FIG. 11, the filter moveable filter press generally includes a sludge injection line 110 and an filtrate discharge line 120.

The sludge injection line 110 connects the sludge inlet 20 and the sludge inlet 12 of a filter plate 10 located at the outermost of the plurality of filter plates 10. The sludge injection line 110 has a sludge injection pump 116 and a sludge injection valve 114.

The filtrate discharge line 120 connects the filtrate discharge port 14 of the filter plate 10 located at the outermost of the plurality of filter plates 10 to the storage tank 22 and has a filtrate discharge valve 124 .

When the sludge injection pump 116 is operated after the filter plates 10 are in close contact with each other, that is, in the closed plate state, the sludge of the sludge tank 20 flows into the filter plate 10, The sludge is injected into the filter spaces formed between the neighboring filter plates 10 through the sludge inlet 12 of the filter plate 10. Here, the filter chamber is a space enclosed by a pair of filter cloths 10b (see Fig. 13) facing the surfaces of the filter plates 10. Fig.

When the sludge is press-fitted into the furrow, the filtrate passes through the filter cloth 10b, passes through the protrusions 10a (see FIG. 12) on the surface of the filter plate 10 and reaches the filtrate outlet 14 of each filter plate 10 And then moves to the storage tank 22 along the filtrate discharge line 120. On the other hand, the sludge separated from the filtrate, that is, the sludge cake, does not pass through the filter cloth 10b and remains in the compartment.

The operation of the above-described filter press is automatically performed under the control of a controller (not shown). For example, the controller controls the opening and closing plates of the filter plates 10, and also controls the operation and stop of the sludge injection pump 116, opening and closing of the sludge injection valve 114 and the filtrate discharge valve 124, and the like.

When the filter press according to the fourth embodiment of the present invention is the filter press of the movable type filter as described above, the filtration apparatus and the filter plate simultaneous cleaning apparatus 100 provided therein include a wash water discharge line 150, And a supply line 140.

The wash water discharge line 150 extends from the branch point 112 of the sludge injection line 110 to the storage tank 22. The bifurcation point 112 is a portion of the sludge injection line 110 located between the sludge injection valve 114 and the sludge inlet 12 of the filter plate 10. Further, the wash water discharge line 150 has a wash water discharge valve 152.

The wash water supply line 140 extends from the wash water tank 40 to the merging point 122 of the filtrate discharge line 120. The merging point 122 is a portion of the filtrate discharge line 120 located between the filtrate discharge valve 124 and the filtrate discharge port 14 of the filter plate 10. The washing water supply line 140 is provided with a washing water supply pump 146 for pumping the washing water of the washing water tank 40 to the filtrate discharge port 14 and between the washing water supplying pump 146 and the point of intersection 122 And a washing water supply valve 144 disposed in the washing water supply pipe 144. [

In the fourth embodiment of the present invention in which the wash water discharge line 150 and the wash water supply line 140 are provided in the filter cloth movable filter press, the control of the controller is performed as follows.

First, when the filter plates 10 are in the closed plate state, the sludge injection valve 114 and the filtrate discharge valve 124 are opened, the wash water supply valve 144 and the wash water discharge valve 152 are closed, 116 operate. The sludge in the sludge tank 20 is then forced into the compartment between the filter plates 10 along the sludge injection line 110. Thereafter, the filtrate is separated from the sludge, and the sludge is dewatered. At this time, the filtrate moves to the storage tank 22 along the filtrate discharge line 120, and the sludge separated from the filtrate (sludge cake) .

When the dehydration of the sludge is completed, the sludge injection valve 114 and the filtrate discharge valve 124 are closed, the sludge injection pump 116 is stopped, and the filter plates 10 are opened. Then, the sludge cake remaining in the compartment falls out of the compartment and is separated from the filter cloth 10b.

When the process is completed, the filter plates 10 are again shut down, and then the wash water supply valve 114 and the wash water discharge valve 152 are opened and the wash water supply pump 146 is operated. Then, the wash water in the wash water tank 40 moves along the wash water supply line 140 to the filtrate discharge port 14 of the filter plates 10. 12 and 13, the washing water is transferred to the sludge inlet 12 of the filter plates 10 via the protrusions 10a on the surface of the filter plates 10. In this process, The surface of the filter plates 10 is cleaned and the inner surface of the filter cloth 10b (that is, the surface opposite to the outer surface of the filter cloth 10b which has come into contact with the sludge at the time of dewatering) do. The washing water moved to the sludge inlet 12 moves along the washing water discharge line 150 to the storage tank 22.

The conventional cleaning apparatuses only clean the outer surface of the filter cloth 10b (i.e., the surface of the filter cloth 10b that is in contact with the sludge at the time of dewatering and the surface exposed to the filter cloth) I could not. However, in the fourth embodiment of the present invention, both the inner surface of the filter cloth 10b and the surface of the filter plate 10 can be cleaned at the same time.

Korean Patent Laid-Open No. 10-2005-0003926 (membrane plate for dehydrator and dryer), Korean Patent Laid-Open No. 10-2010-0099811 (dehydration method and apparatus for filter press), Korean Patent No. 0541328 ), Korean Utility Model Appl. No. 20-2008-0003694 (membrane filter plate of filter press), etc. are also a type of filter presses that are commonly used as filter cloths. In the membrane type filter press, a membrane (not shown) having protrusions 10a on its surface is provided on both surfaces of the filtration plate 10, and pressurized water is injected between the surface of the filtration plate 10 and the membrane. Then, The pressure of the membrane is applied to the inlet sludge in addition to the input, so that the dehydration of the sludge can be performed more efficiently.

In this membrane type filter press, since the pressurized water must be supplied between the membrane and the filter plate 10 as described above, the pressurized water supply line 130 is provided as shown in FIG. Further, a pressurized water recovery line 130a is also provided for recovering pressurized water between the filtration plate and the membrane.

The pressurized water supply line 130 connects the pressurized water tank 30 and the pressurized water injection port 16 of the filter plate 10 and includes a pressurized water supply pump 136 and a pressurized water supply valve 134. The pressurized water recovery line 130a branches from the pressurized water supply line 130 located between the pressurized water supply valve 134 and the pressurized water injection port 16 and extends to the storage tank 22. The pressurized water recovery pump 136a And a pressurized water recovery valve 134a.

When the pressurized water supply pump 136 operates in a state where the pressurized water supply valve 134 is closed and the pressurized water recovery valve 134a is closed, the pressurized water in the pressurized water tank 30 Is supplied to the space between the membrane and the filter plate 10 through the inlet 16, and the inside sludge is dehydrated while being pressurized by the membrane. When the dehydration is completed, the pressurized water supply valve 134 is closed and the pressurized water supply pump 136 is stopped, and the opening of the pressurized water recovery valve 134a and the operation of the pressurized water recovery pump 136a are performed , So that the pressurized water between the filter plate 10 and the membrane is recovered into the storage tank.

The pressurized water tank 30 is also used as the wash water tank 40 and the pressurized water supply pump 136 is also used as the wash water supply pump 146 when the fourth embodiment of the present invention is a membrane type filter press as described above. The washing water supply line 140 is branched from the pressurized water supply line 130 located between the pressurized water supply pump 136 and the pressurized water supply valve 134 to reach the merging point 122 of the filtrate discharge line 120 And extending portions. In this case, the pressurized water tank 30, the pressurized water pump 136, and a portion of the pressurized water supply line 130 can be utilized as the configuration for supplying the wash water.

If the fourth embodiment of the present invention is a membrane type filter press, when the pressurized water supply valve 134 is opened, the controller opens the wash water supply valve 144 so that the pressurized water is not supplied to the filtrate discharge port 14 of the filter plate 10. [ And closes the pressurized water supply valve 134 so that the wash water is not supplied to the pressurized water injection port 15 of the filter plate 10 when the wash water supply valve 144 is opened.

Hereinafter, the fourth embodiment of the present invention will be described with reference to a case where the filter cloth is a filter filter.

14, a sludge inlet 12 is provided at the center of the filter plate 10, and an outlet for the filtrate is provided at four corners of the filter plate 10. Hereinafter, for convenience of explanation, the two right filtrate discharge ports are referred to as a first filtrate discharge port 14a, and the two left filtrate discharge ports are referred to as a second filtrate discharge port 14b.

The sludge injection port 12 and the sludge tank 20 are connected to a sludge injection line 210 and a sludge injection pump 216 and a sludge injection valve 214 are provided in the sludge injection line 210.

The filtrate discharge line includes a first filtrate discharge line 220a and a second filtrate discharge line 220b. The first filtrate discharge line 220a connects the first filtrate discharge port 14a and the storage tank 22 and has a first filtrate discharge valve 224a. The second filtrate discharge line 220b connects the second filtrate discharge port 14b and the joint point 222a, and has a second filtrate discharge valve 224b. Here, the merging point 222a is a portion of the first filtrate discharge line 220a located between the first filtrate discharge valve 224a and the first filtrate discharge port 14a.

The wash water supply line 240 extends from the wash water tank 40 to the merging point 222b of the second filtrate discharge line 220a. The merging point 222b is a portion of the second filtrate discharge line 220b located between the second filtrate discharge valve 224b and the second filtrate discharge port 14b. The washing water supply line 240 has a washing water supply pump 246 for pumping the washing water in the washing water tank 40 to the second filtrate discharge port 14b and the washing water supply pump 246 and the merging point 222b (Not shown).

In the case where the fourth embodiment of the present invention is a filtration filter fixed filter press as described above, the control of the controller is performed as follows.

First, when the filter plates 10 are in the closed plate state, the sludge injection valve 214 and the

filtrate discharge valves

224a, 224b are opened, the wash water supply valve 244 is closed, the sludge injection pump 216 is operated do. The sludge in the sludge tank 20 is then pressurized into the compartment between the filter plates 10 along the sludge injection line 210. Thereafter, the filtrate is separated from the sludge, and the sludge is dehydrated. At this time, the filtrate moves to the storage tank 22 along the

filtrate discharge lines

220a and 220b, and the sludge separated from the filtrate (sludge cake) .

When the dehydration of the sludge is completed, the sludge injection valve 214 and the second filtrate discharge valve 224b are closed, the sludge injection pump 216 is stopped, and the filter plates 10 are opened. Then, the sludge cake remaining in the compartment falls out of the compartment and is separated from the filter cloth 10b.

When this process is completed, the filter plates 10 are again shut down, the wash water supply valve 244 is opened, and the wash water supply pump 246 is operated. Then, the wash water in the wash water tank 40 moves along the wash water supply line 240 to the second filtrate discharge port 14b. Thereafter, the washing water passes through the protrusions on the surface of the filter plates 10 and moves to the first filtrate discharge port 14a. In this process, the impurities sandwiched between the protrusions are removed to clean the surfaces of the filter plates 10, The inner surface of the filter cloth (i.e., the opposite surface of the outer surface of the filter cloth that came into contact with the sludge upon dewatering) is also cleaned with wash water. The washing water moved to the first filtrate discharge port 14a moves to the storage tank 22 along the first filtrate discharge line 220a.

Meanwhile, when the fourth embodiment of the present invention is a filter cloth fixed filter press, the washing apparatus 200 may have a washing water discharge line 250 as shown in FIG.

In this case, the wash water discharge line 250 extends from the branch point of the sludge injection line 210 to the storage tank 22. The branch point is a portion of the sludge injection line 210 located between the sludge injection valve 214 and the sludge injection port 12. Further, the wash water discharge line 250 has a wash water discharge valve 252. The second filtrate discharge valve 224b need not be provided as shown in FIG.

The control in the case where the fourth embodiment of the present invention is configured as shown in Fig. 15 is performed as follows.

First, when the filter plates 10 are placed in the closed plate state, the sludge injection valve 214 and the filtrate discharge valve 224a are opened, the wash water supply valve 244 and the wash water discharge valve 252 are closed, 216 operate. The sludge in the sludge tank 20 is then pressurized into the compartment between the filter plates 10 along the sludge injection line 210. Thereafter, the filtrate is separated from the sludge, and the sludge is dehydrated. At this time, the filtrate moves to the storage tank 22 along the

filtrate discharge lines

220a and 220b, and the sludge separated from the filtrate (sludge cake) .

When the dehydration of the sludge is completed, the sludge injection valve 214 and the filtrate discharge valve 222a are closed, the sludge injection pump 216 is stopped, and the filter plates 10 are opened. Then, the sludge cake remaining in the compartment falls out of the compartment and is separated from the filter cloth 10b.

After this process is completed, the filter plates 10 are again shut down, and then the wash water supply valve 244 and the wash water discharge valve 252 are opened and the wash water supply pump 246 is operated. Then, the wash water in the wash water tank 40 moves along the wash water supply line 240 to the

filtrate outlets

14a and 14b. Thereafter, the washing water is transferred to the sludge inlet 12 through the protrusions on the surface of the filter plates 10. In this process, the foreign substances sandwiched between the protrusions are removed to clean the surface of the filter plates 10, The inner surface (i.e., the opposite surface of the outer surface of the filter cloth that abuts the sludge during dehydration) is also cleaned with wash water. The washing water moved to the sludge inlet (12) moves to the storage tank (22) along the washing water discharge line (250).

< 실링 보강 부재를 갖는 필터 프레스 - 제5실시예 >&Lt; Filter Press with Sealing Stiffening Member - Fifth Embodiment >

Hereinafter, a filter press according to a fifth embodiment of the present invention will be described with reference to Figs. 16 to 19. Fig. The reference numerals quoted in the description of the fifth embodiment below are defined in Figs. 16 to 19. For reference, "front and rear" in the fifth embodiment is set opposite to "front and rear" in the foregoing embodiments.

The filter press 100 according to the fifth embodiment of the present invention includes a plurality of filter plates 120 and a sealing member 130.

The upper filter plates 120 are arranged along the longitudinal direction between the front plate 110 and the pressure plate 112 of the filter press 100 as shown in FIG. 16 and connected to each other by a chain (not shown). The front plate 110 is fixed to a frame (not shown) forming an overall frame of the filter press 100. The pressure plate 112 is coupled to the upper frame (not shown) so that it can reciprocate along the forward and backward directions. When the hydraulic cylinder (not shown) installed in the upper frame (not shown) is actuated, the pressure plate 112 moves forward or backward.

When the pressure plate 112 advances to the maximum, all the filter plates 120 are in close contact with each other, resulting in a closed plate state. When the pressure plate 112 is moved backward in the closed plate state, the filter plates 120 connected to the chain (not shown) are pulled backward one by one and are all separated from each other.

Each filter plate 120 generally has a plurality of

holes

122, 123, 124, 125.

For example, when the filter press 100 is a filter mobile filter press, each filter plate 120 generally has

holes

122, 123, 124, 125 at four corners as shown in FIG. 19 (a).

In this case, the lower right hole 122 is used to discharge the filtrate separated from the sludge, and the lower left hole 124 is used to expand the membrane (not shown) between the surface of the filter plate 120 and the filter fabric And the upper right hole 123 is used to supply the air required for recovering the pressurized water to the lower left hole 124. [ The upper left hole 125 is used to supply the air required for pushing the sludge remaining in the sludge inlet 121 to the sludge injection pipe (not shown) just before the filter plates 120 are opened after the completion of dewatering.

Each filter plate 120 has

holes

122, 123, 124 and 125 at four corners as shown in FIG. 19 (b), even when the filter press 100 is a filter cloth fixed filter press. In this case, all four

holes

122, 123, 124, and 125 are used to discharge the filtrate.

The

holes

122, 123, 124, and 125 formed in the respective filter plates 120 communicate with each other in the closed plate state to form a fluid path for fluid (liquid and gas) to move. For example, the right lower holes 122 of the respective filter plates 120 form a filtrate discharge path by communicating with each other in a closed plate state. Therefore, a seal member 130 such as rubber is provided on the

upper holes

122, 123, 124, and 125 to seal the fluid path. At this time, the sealing member 130 is installed alternately (for example, only on odd-numbered or even-numbered filter plates) on the filter plates 120 as shown in FIG.

The filter press 100 according to the fifth embodiment of the present invention in addition to the filter plates 120 and the sealing member 130 includes the sealing reinforcing member 140 for the front plate and the sealing reinforcing member 160 for the pressure plate .

The sealing

reinforcement members

140 and 160 may be applied to all fluid passages or part of the fluid passages formed by the

holes

122, 123, 124 and 125 of the filter plate 120 in the closed plate state. However, since the

sealing reinforcing members

140 and 160 are applied to the respective fluid paths, they are applied to the filtrate discharge path formed by the filtrate discharge hole 122 which is the lower right hole 122 The

sealing reinforcing members

140 and 160 will be described.

The sealing reinforcing member 140 for the front plate is provided in close contact with the forefront sealing member 130 provided in the filtrate discharge hole 122 of the forefront filtration plate 120 in the closed plate state as shown in FIG. Here, the frontmost filter plate 120 refers to the filter plate 120 located closest to the front plate 110.

In the closed plate state, the filtrate discharge holes 122 of the respective filter plates 120 communicate with each other to form a filtrate discharge passage. The filtrate flows along the filtrate discharge passage, and passes through the filtrate passage holes 142a And then discharged to the outside along the filtrate discharge pipe 146 fixed to the sealing reinforcing member 140 for the front plate. At this time, the filtrate is not leaked between the adjacent filter tubes 120 due to the close contact between the sealing member 122 and the filter plate 120, and the leakage between the frontmost sealing member 130 and the front plate sealing reinforcing member 140 But also between the front plate 110 and the frontmost filter plate 120.

The front-plate sealing reinforcing member 140 is installed on the front plate 110 so that the front-rear direction position can be changed. Therefore, in the filter press 100 according to the fifth embodiment, when the sealing member 130 is in a state in which the sealing member 130 can not perform the sealing function properly due to the reduction in the elastic force due to the curing of the sealing member 130, , The sealing reinforcing member 140 for the front plate can be slightly retracted and fixed to the front plate 110. If the sealing member 130 for the front plate is slightly moved backward, even if the pressing force of the hydraulic cylinder for advancing the pressure plate 112 is the same, the sealing member 130 is more tightly attached to the neighboring member, .

16 and 17, the sealing reinforcement member 140 for a front plate having the above functions may be provided with a fixing portion 144 and a close contact portion 142. [

The fixing portion 144 has a plurality of long holes 144a extending in the front-back direction. When the bolts 148 passing through the respective slots 144a are fastened to the front plate 110, the front plate sealing reinforcing member 140 is fixed to the front plate 110. [ When fixing the sealing reinforcement member 140 for the front panel backward, the bolt 148 is loosened, and then the fixing portion 144 is retracted. Thereafter, the bolt 148 is tightened again.

The contact portion 142 is integral with the fixing portion 144. The close contact portion 142 is provided in close contact with the forefront sealing member 130 in the closed plate state and has a filtrate passage hole 142a communicating with the filtrate discharge hole 122 of the foremost filtration plate 120 in the closed plate state. On the other hand, the filtrate discharge pipe 146 is fixed to the adhered portion 142 in the same manner as welding.

16, the seal reinforcing member 160 for the pressure plate is provided in close contact with the rearmost sealing member 130 provided in the filtrate discharge hole 122 of the rearmost filtration plate 120 in the closed plate state. Therefore, the filtrate does not leak between the pressure plate 112 and the final filtration plate 120 in the closed plate state. The final filtration plate 120 refers to the filtration plate 120 positioned closest to the pressure plate 112.

The sealing reinforcing member 160 for the pressure plate is provided on the pressure plate 112 so that the front-rear direction position can be changed. Therefore, in the filter press 100 according to the fifth embodiment, when the sealing member 130 reaches a state in which the sealing member 130 can not properly perform the sealing function due to the reduction in the elastic force due to the curing of the sealing member 130, The sealing reinforcing member 160 for pressing can be slightly advanced and fixed to the pressure plate 112. When the seal reinforcing member 160 for the pressure plate is slightly advanced, even if the pressing force of the hydraulic cylinder for advancing the pressure plate 112 is the same, the sealing member 130 is more tightly adhered to the neighboring member, .

The sealing reinforcing member 160 for a pressure plate having the above functions may be provided with a fixing portion 164 and a close contact portion 162 as shown in FIGS.

The fixing portion 164 has a plurality of elongated holes 164a extending in the front-rear direction. When the bolts 168 passing through the respective slots 164a are fastened to the pressure plate 112, the sealing reinforcement member 160 for the pressure plate is fixed to the pressure plate 112. [ When the sealing reinforcing member 160 for the pressure plate is to be advanced and fixed, the bolt 168 is loosened, the fixing portion 164 is advanced, and then the bolt 168 is tightened again.

The fastening portion 162 is integral with the fastening portion 164. And the close contact portion 162 is provided in close contact with the rearmost sealing member 130 in the closed plate state. It is not necessary to provide the filtrate hole 142a and the filtrate discharge pipe 146 in the close contact portion 162. This is because the filtrate hole 142a and the filtrate discharge pipe 146 are connected to the seal reinforcing member 140 for the front plate, . Reference numeral 166 denotes a bracket for reinforcing the strength of the sealing reinforcing member 160 for the pressure plate.

An example has been described in which the filtrate passage hole 142a and the filtrate discharge pipe 146 are formed in the close contact portion 144 of the sealing reinforcing member 140 for the front plate. However, the filtrate passage hole 142a and the filtrate discharge pipe 146 may be provided at the close contact portion 164 of the seal reinforcing member 160 for the pressure plate.

Further, an example has been described in which both the front-seat sealing reinforcement member 140 and the sealing plate reinforcement member 160 for the pressure plate are provided. However, only the sealing reinforcing member 140 for the front plate may be provided, and the sealing reinforcing member 160 for the pressure plate may not be provided. In this case, the pressure plate 112 will be provided in close contact with the rearmost sealing member 130 in the closed plate state.

In addition, unlike the above-described case, only the seal reinforcing member 140 for the front plate is not provided and only the sealing plate reinforcing member 160 for the pressure plate is provided. In this case, the front plate 110 will be provided in close contact with the frontmost sealing member 130 in the closed plate state. The filtrate passage hole 142a and the filtrate discharge pipe 146 may be provided on the front plate or may be provided on the adhesion site 164 of the sealing plate reinforcing member 160 for the pressure plate.

< 리미트 스위치를 갖는 필터 프레스 - 제6실시예 ><Filter Press with Limit Switch - Sixth Embodiment>

Hereinafter, a filter press according to a sixth embodiment of the present invention will be described with reference to Figs. 1, 2, 20 and 21. Fig. The reference numerals recited in the description of the sixth embodiment below are defined in Figs. 1, 2, 20 and 21.

The filter press according to the sixth embodiment of the present invention is a filter cloth movable filter press which includes an upper limit arm 182a, a lower limit arm 182b, an upper limit switch 184a, (184b).

The upper arm 182a and the lower arm 182b are mounted on a lifting chain 78 for lifting and lowering the last filter cloth 50 located closest to the rear plate 14 and the longitudinal direction of the lifting chain 78 They are located apart from each other.

The upper limit switch 184a is mounted on the back plate 14 and can be pressed downward by the upper arm 182a when the lifting chain 78 is moved in the direction to reverse the upward movement of the filter cloth 50 Place. The lower limit switch 184b is mounted on the back plate 14 and can be pressed upward by the lower limit arm 182b when the lifting chain 78 moves in the direction of lowering the filter cloth 50 Place.

The upper limit switch 184a outputs an upper limit signal to the controller (not shown) when the upper limit switch 184a is pressed by the upper limit arm 182a. When the lower limit switch 184a is pressed by the lower limit arm 182a, . The controller appropriately controls the motor 70 in accordance with the upper limit signal and the lower limit signal.

The sixth embodiment includes a wash water injection tube 92 for washing the filter cloth 50 after discharging the sludge cake. The washing water spraying pipe 92 is mounted on a bracket 66 fixed to the lower end of the filtering plate 30 as shown in FIGS. 2 and 21, and a valve 94, which allows or prohibits the supply of washing water to the front end, Respectively. The opening and closing of the valve 94 is controlled by the controller.

For reference,

reference numerals

62 and 64 in FIG. 21 are filter cloth catching rods. The filter cloth 50 having the first lower end rod 58a is wound around the first filter web catching portion 62 of the front filter plate 30 and the filter cloth 50 having the second lower end rod 58b is wound around the rear filter plate 30, And the second filter cloth catching portion 64 of the second filter cloth 64 is wound. The first and second filter

cloth fastening portions

62 and 64 are rotatably coupled to the bracket 166.

The cleaning of the filter cloth 50 starts when the filter cloth 50 which has risen to the upper limit again starts to descend after discharging the sludge cake. However, since the non-contaminated portion (b) of the filter cloth does not form the filament (54), the filtrate or the sludge cake is hardly present in the non-contaminated portion (b). Therefore, the controller controls the motor 70 so that the filter cloth 50 descends relatively quickly when the non-contaminated portion b passes the washing water injection portion. When the contaminated portion a passes the washing water injection portion, Controls the motor 170 so that the filter cloth 50 descends relatively slowly and opens the valve 94 such that the washing water is sprayed throughout the filter cloth 50 from the upper limit to the lower limit. If such control is performed while the filter cloth 50 is washed, unnecessary waste of the washing water can be prevented and the time taken for the washing can be reduced.

After the first washing, the second washing is performed from the time when the filter cloth 50 rising to the upper limit starts to descend. The second cleaning is performed because cleaning of the filter cloth 50 is not sufficient once. However, since the non-contaminated portion (b) is a region where contamination is hardly observed, it does not need to be cleaned twice. The controller 70 controls the motor 70 and the valve 94 so that the filter cloth 50 is relatively quickly lowered when the non-contaminated portion b passes the washing water spraying portion, When the contaminated portion (a) passes the washing water spraying portion, the filter cloth 50 is lowered relatively slowly and the valve 94 is opened. If such control is performed while the filter cloth 50 is secondly washed, unnecessary waste of the washing water can be prevented, and the time required for washing can be reduced.

An encoder (not shown) may be mounted on the hexagonal bar 74 to sense the rotational displacement of the hexagonal bar 74 and to output it to the controller.

On the other hand, in the sixth embodiment, the rod 42 of the hydraulic cylinder 40 is a multi-stage rod. For example, the upper rod 42 may be composed of a single-stage rod which is drawn into the hydraulic cylinder 40 and a two-stage rod which is drawn into the single-stage rod. In this case, the end of the second stage rod is fixed to the pressure plate 20.

If the hydraulic cylinder 40 is configured to have a multi-stage rod as in the sixth embodiment, the length of the hydraulic cylinder 40 can be significantly reduced. For example, if the hydraulic cylinder 40 has a two-stage rod, its length is reduced to half the length of the hydraulic cylinder having an endless rod, and reduced to 1/3 if a three-stage rod is present. Therefore, according to the sixth embodiment, the total length of the filter press is shortened.

Hereinafter, the operation of the filter press according to the sixth embodiment will be described.

When the hydraulic cylinders 40 are operated with the filter plates 30 opened, the pressure plate 20 moves toward the back plate 14, and the filter plates 30 are pushed by the pressure plate 20 to be closed.

When the filter plates 30 are closed, the sludge is pressurized, and the pressurized sludge is supplied to the filtration chamber 54 of all the filter cloths 50 while passing through the sludge passing plates 52 and the filter plates 30. Thereafter, the filtrate is discharged to the outside after passing through the filter cloth 50 surrounding the filtration chamber 54, and the sludge cake remains in the filtration chamber 54.

When the dewatering process is continued for a predetermined time and the dehydration of the sludge is completed, the cylinder 40 is operated, and the plunger 20 moves toward the front plate 12. Then, the filter plates 30 are pulled open by the pressure plate 20, and in this process, the sludge cake of the compartment 54 falls freely.

When all the filter plates 30 are opened, the motor 70 is operated in the forward direction, whereby all the filter cloths 50 start to descend at the upper limit. The sludge cake remaining on the surface of the filter cloth 50 while the filter cloth 50 descends is separated from the filter cloth 50 and drops. The lowering of the filter cloths 50 is performed until the controller receives the lower limit signal from the lower limit switch 184b.

The controller that has received the lower limit signal activates the motor 70 in the reverse direction, thereby causing the filter cloths 50 to start rising again. The rising of the filter cloths 50 is performed until the controller receives the upper limit signal from the upper limit switch 184a.

The controller which has received the upper limit signal operates the motor 70 again in the forward direction and opens the valve 94 in the front end of the washing water supply pipe 92. Therefore, the filter cloths 50 start to descend again, and the washing water is sprayed to the filter cloth 50 that descends. At this time, the filter cloths 50 descend more rapidly when the contaminated portion (b) passes the washing water sprayed portion than when the contaminated portion (b) passes the washing water sprayed portion. The lowering of the filter cloths 50 is performed until the controller receives the lower limit signal from the lower limit switch 184b.

The controller receiving the lower limit signal actuates the motor 70 in the reverse direction and closes the valve 94. Thus, the filter cloths 50 start rising without washing. The rising of the filter cloths 50 is performed until the controller receives the upper limit signal from the upper limit switch 184a.

The controller which has received the upper limit signal activates the motor 70 again in the forward direction, whereby the filter cloths 50 start to descend. Then, when the non-contaminated portion (b) passes through the washing water injection portion, the controller operates the motor (70) more slowly and opens the valve (94) so that the filter cloths (50) Washed. This fall of the filter cloths 50 is performed until the controller receives the lower limit signal from the lower limit switch 184b.

The controller receiving the lower limit signal operates the motor 70 in the reverse direction until the upper limit signal is received from the upper limit switch 84a and closes the valve 94. Thus, the filter cloths 50 rise without washing and stop at the upper limit. In this state, the cylinder 40 is operated and the dehydration process starts again.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

The filter press according to the present invention can be used in industry to dewater sludge.

Claims

A filter press comprising a filter cloth movable filter press having a bevel gear housing,

The bevel gear housing comprises:

A ring gear coupled to the hexagonal bar so as to penetrate a hexagonal rod extending in the front and rear direction from left and right upper portions of the filter plates of the filter movable filter press and a left and right bracket fixed to left and right ends of the upper surfaces of the filter plates, A bevel gear comprising a pinion gear which fixes one end of a filter shoe contraction supported by the right and left brackets and engages with the ring gear;

A ring bearing mounted on an outer circumferential surface of the ring gear and rotated together with the ring gear; a ring bearing disposed on an outer circumferential surface of the inner ring and arranged in a circumferential direction; and an outer ring having a concave inner circumferential surface contacting the bearing; And

A pair of left and right brackets fixed to the bracket provided with the pinion gear and having a diameter between an inner diameter and an outer diameter of the outer ring, And a housing having therein an escape groove of the filter press.
The method according to claim 1,

The housing includes:

A first portion that receives either one of the pair of escape grooves and the ring bearing and is fixed to a bracket provided with the pinion gear; And

And a second portion receiving a remaining one of the pair of escape grooves and releasably engaged with the first portion.
The method according to claim 1,

And a sealing member made of a rubber material abuts against an outer peripheral surface of the ring gear on the inner surface of the housing facing the pair of escaping grooves.
The method of claim 3,

Wherein a groove extending in a circumferential direction is provided on a surface of the front and rear faces of the sealing member facing the escape groove, and a filter press is provided in the groove and provided with a spring for tightening the sealing member toward the outer peripheral surface of the ring gear. .
The method according to claim 1,

Wherein the housing is provided with at least one of a stopper and a shock absorber for uniformly maintaining a distance between the housings when the filter plates come into contact with each other.
A contraction axis provided to extend in the left-right direction from the upper portion of each of the filter plates arranged in the front-back direction and suspending the filter cloth;

The hexagonal bar extending in the forward and backward directions from the left and right sides of the upper and the lower filter plates is rotatably supported on the left and right sides of the contraction, Shrink housing;

A ring gear coupled to the hexagonal bar so as to penetrate the hexagonal bar and a pinion gear fixed to an end portion of the left and right ends of the hysteretic shafts where the present shrinkable housing is not fastened and meshing with the ring gear;

A bevel gear housing rotatably surrounding a rotary shaft of the ring gear and a rotary shaft of the pinion gear;

A rail which supports the bevel gear housing and the hull shrink housing such that the front and rear ends thereof are fixed so as to be parallel to the hexagonal rod and the front and rear ends of the bevel gear housing and the hull contraction housing are slidable; And

And a tow chain connecting the adjacent bevel gear housing and the hull shrink housing.
The method according to claim 6,

And a pressure plate provided on the uppermost filter plate and the uppermost filtration plate to press both the bevel gear housing and the hung shaft housing fastened to the left and right sides of the hinge shaft located at the upper portion of the uppermost filtration plate, .
A filter cloth string shrunk rotatably supported by left and right brackets fixed to left and right ends of upper surfaces of the filter plates arranged in the front-back direction;

A universal joint fixed to the left end of the filter bag contraction in one of the neighboring filter bag contractions and fixed to the right end of the filter bag contraction in the other one;

A ring gear coupled to the hexagonal bar so as to pass through a hexagonal rod extending in the front and rear direction at left and right sides of the filter plates, and a pinion gear fixed to the universal joint and configured to engage with the ring gear;

A bevel gear housing rotatably surrounding a rotary shaft of the ring gear and a rotary shaft of the pinion gear;

A rail coupled to the bevel gear housing such that the front and rear ends thereof are fixed so as to be parallel to the hexagonal rod and the front and rear slidable of the bevel gear housing;

At least one of a housing stopper and a shock absorber provided in the bevel gear housing so as to protrude toward a neighboring bevel gear housing; And

And a traction chain connecting adjacent bevel gear housings.
A filter cloth string shrunk rotatably supported by left and right brackets fixed to left and right ends of upper surfaces of the filter plates arranged in the front-back direction;

A flexible shaft which is fixed to the left end of the filtering cloth contraction in one of the neighboring filter cloth contractions and is fixed to the right end of the filter cloth contraction in the other;

A ring gear coupled to the hexagonal bar so as to pass through a hexagonal bar extending in the front and rear direction on the left and right sides of the filter plates, and a pinion gear fixed to the flexible shaft and configured to engage with the ring gear;

A bevel gear housing rotatably surrounding a rotary shaft of the ring gear and a rotary shaft of the pinion gear;

A rail coupled to the bevel gear housing such that the front and rear ends thereof are fixed so as to be parallel to the hexagonal rod and the front and rear slidable of the bevel gear housing;

At least one of a housing stopper and a shock absorber provided in the bevel gear housing so as to protrude toward a neighboring bevel gear housing; And

And a traction chain connecting adjacent bevel gear housings.
10. The method according to claim 8 or 9,

Said rail being provided to support said bevel gear housing below said hex rod.
10. The method according to claim 8 or 9,

And a pressure plate provided at the same time for pressing the frontmost filter plate and the foremost right and left side bevel gear housings backward or forward while operating the hydraulic cylinder.
A filter press composed of a filter movable filter press including a sludge injection line for connecting a sludge inlet of a filter plate and a sludge tank and an filtrate discharge line connecting the filtrate discharge port of the filter plate and the storage tank, ,

The filter cloth and the filtration plate simultaneous cleaning apparatus may include:

A wash water discharge line extending from the branch point of the sludge injection line located between the sludge injection port and the sludge injection valve installed in the sludge injection line to the storage tank and having a wash water discharge valve;

And a washing water supply pump for pumping washing water from the washing water tank to the filtrate discharge port at a point of the filtrate discharge line extending from the washing water tank and located between the filtrate discharge valve provided in the filtrate discharge line and the filtrate discharge port, A wash water supply line having a wash water supply valve positioned between the wash water supply pump and the merging point; And

A controller that closes the wash water supply valve and the wash water discharge valve when the sludge injection valve and the filtrate discharge valve are opened and closes the sludge injection valve and the filtrate discharge valve when the wash water supply valve and the wash water discharge valve are opened; &Lt; / RTI >
13. The method of claim 12,

When a pressurized water supply line including the pressurized water supply pump and the pressurized water supply valve extending from the pressurized water tank to the pressurized water injection port of the filter plate is provided in the filter movable filter press,

The washing water tank is constituted by the pressurized water tank, the washing water supply pump is constituted by the pressurized water supply pump, and the washing water supply line is connected to the pressurized water supply line located between the pressurized water supply pump and the pressurized water supply valve And a portion extending from the branch point to the sum of the filtrate discharge lines,

Wherein the controller closes the wash water supply valve when the pressurized water supply valve is opened and closes the pressurized water supply valve when the wash water supply valve is opened.
A sludge injection line connecting a sludge inlet of a filter plate and a sludge tank and having a sludge injection valve, a first filtrate having a first filtrate discharge valve connected to a first filtrate discharge port, which is a part of a plurality of filtrate discharge ports provided in the filtration plate, And a second filtrate discharge port extending from a second filtrate discharge port that is the remainder of the plurality of filtrate discharge ports and positioned between the first filtrate discharge valve and the first filtrate discharge port, A filter press comprising a filter cloth fixed filter press comprising a second filtrate discharge line having a valve and provided with a filter cloth and a filter plate simultaneous cleaning device,

The filter cloth and the filtration plate simultaneous cleaning apparatus may include:

And a second filtrate discharging line for discharging the washing water from the washing water tank to the second filtrate discharge port, wherein the washing liquid tank is connected to the second filtrate discharge line at a joint point extending from the washing water tank and located between the second filtrate discharge port and the second filtrate discharge valve, A washing water supply line provided with a pump and having a wash water supply valve located between the wash water supply pump and the joint point of the second filtrate discharge line; And

When the sludge injection valve and the first and second filtrate discharge valves are opened, the wash water supply valve is closed and when the wash water supply valve and the first filtrate discharge valve are opened, the sludge injection valve and the second And a controller for closing the filtrate discharge valve.
A sludge injection line connecting a sludge inlet of a filter plate and a sludge tank and having a sludge injection valve, a filtrate discharge filter line including a filtrate discharge line connecting a plurality of filtrate discharge ports and a storage tank provided in the filtration plate, A filter press constructed to have a filter cloth and a filter plate simultaneous cleaning device,

The filter cloth and the filtration plate simultaneous cleaning apparatus may include:

A wash water discharge line branched from a branch point of the sludge injection line positioned between the sludge injection valve and the sludge injection port and extending to the storage tank and having a wash water discharge valve;

And a washing water supply pump for supplying washing water from the wash water tank to the filtrate discharge port, the washing water supply pump being connected to the filtrate discharge line at a joint point extending from the wash water tank and located between the filtrate discharge port and the filtrate discharge valve, A wash water supply line having a wash water supply valve located between a pump and a junction point of the filtrate discharge line; And

Wherein when the sludge injection valve and the filtrate discharge valve are opened, the wash water supply valve and the wash water discharge valve are closed, and when the wash water supply valve and the wash water discharge valve are opened, the sludge injection valve and the filtrate discharge valve are closed The filter press comprising:
The front plate and the pressure plate are arranged in the front-rear direction, and the pressure plate is brought into close-contact with each other by the back-and-forth movement of the pressure plate so as to be in a closed plate state or in a state of being separated from each other, A plurality of filter plates provided;

A sealing member provided in the hole to seal the fluid path; And

And a sealing reinforcing member provided on the front plate so as to be in close contact with the frontmost sealing member provided in the hole of the frontmost filter plate located closest to the front plate and in the closed plate state.
17. The method of claim 16,

Wherein the sealing reinforcement member for the front plate includes:

A fixing portion having a plurality of elongated holes extending in the front and rear direction and fixed to the front plate by bolts fastened to the front plate after passing through the elongated holes; And

And a close contact portion which is provided integrally with the fixed portion and is adapted to come into close contact with the forefront sealing member in the closed plate state.
18. The method according to claim 16 or 17,

And a sealing reinforcing member for a pressure plate provided on the pressure plate so as to be in close contact with the rear end sealing member provided in the hole of the rear end filtration plate closest to the pressure plate and in the closed plate state, Press.
19. The method of claim 18,

Wherein the sealing reinforcing member for the pressure plate comprises:

A fixing portion having a plurality of elongated holes extending in the front and rear direction and fixed to the pressure plate by bolts fastened to the pressure plate after passing through the slot; And

And a close contact portion which is provided integrally with the fixing portion and is adapted to come into close contact with the rearmost sealing member in the closed plate state.
The front plate and the pressure plate are arranged in the front-rear direction, and the pressure plate is brought into close-contact with each other by the back-and-forth movement of the pressure plate so as to be in a closed plate state or in a state of being separated from each other, A plurality of filter plates provided;

A sealing member provided in the hole to seal the fluid path; And

And a sealing reinforcing member for a pressure plate provided on the pressure plate so as to be in close contact with the rear end sealing member provided in the hole of the rear end filtration plate closest to the pressure plate and in the closed plate state, Press.
21. The method of claim 20,

Wherein the sealing reinforcing member for the pressure plate comprises:

A fixing portion having a plurality of elongated holes extending in the front and rear direction and fixed to the pressure plate by bolts fastened to the pressure plate after passing through the slot; And

And a close contact portion which is provided integrally with the fixing portion and is adapted to come into close contact with the rearmost sealing member in the closed plate state.
The method according to any one of claims 1 to 13 or 16 to 21,

A filter press consisting of a filter cloth movable filter press comprising a plurality of filter plates which are in contact with or separated from each other by a moving platen in the operation of a hydraulic cylinder and a plurality of filter cloths which are simultaneously raised and lowered between the filter plates,

The upper limit arm and the lower limit arm are mounted on the lifting chain for lifting and moving the outermost filter cloth located at the outermost portion, the upper limit switch and the upper limit switch being provided on the frame of the filter moving filter press, And a lower limit switch located below the upper limit switch and capable of being pressed upward by the lower limit arm.
23. The method of claim 22,

Wherein the rod of the hydraulic cylinder is provided with a multi-stage rod having an end coupled to the platen.