KR101545547B1 - Filter press with movable filter cloth - Google Patents

Abstract

The present invention provides a filter press with a movable filter cloth, which is comprised to transmit a rotation power of an operation axis rotating during operation of an operation motor to all suspension rods for suspending a filter cloth among a plurality of filtration plates at the same time. In the filter press, an end unit of the front suspension rod and an end unit of the rear suspension rod facing each other in the front and the rear are connected by an unit joint body folded or unfolded while the filtration plate moves in the front and rear directions. In addition, a joint rod prepared on the joint of the unit joint body is connected to a front connection member and a rear connection member, respectively, wherein the front connection member and the rear connection member are composed of a chain or a timing belt.

Description

{FILTER PRESS WITH MOVABLE FILTER CLOTH}

The present invention relates to a filter press separating a filtrate from sludge press-fitted between filter plates, and more particularly, to a filter cloth movable filter press capable of lifting and lowering a filter cloth between the filter plates.

At present, the sewage discharged from homes and factories is sent to the sewage treatment plant and processed. The sewage treatment process includes a purification process and a sludge treatment process. In the purification process, the sewage is purified to a range where the self-purification of the river can be activated and discharged to a public water such as a river. In the sludge treatment process, The sludge is treated through processes such as concentration and dehydration.

A dehydrator, which is one of the devices used in the sludge treatment 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 a sludge cake (filtrate and sludge separated from the sludge) after pressurizing an inlet sludge provided between filter plates which are in close contact with each other to separate a filtrate from the sludge.

A filter cloth moving room filter press, which is one type of such a filter press, is known. In the filter-moving filter press, the filtrate separated from the sludge passes through a filter cloth surrounding the filter chamber, and then is discharged to the outside of the filter plate via the surface protrusions of the filter plate. And the sludge cake is primarily separated from the filter cloth by free fall from the open space by the separation of the filter plates. 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 press-fitted 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. The present filtration apparatus elevating means includes a pair of hexagonal bars and a plurality of filter cloth suspensions. The pair of hexagonal rods are disposed apart from each other in the width direction (Y-axis direction) of the filter plate and rotatable with respect to the rotation axis extending along the arrangement direction (X-axis direction) of the filter plate, and are located at the upper portions of the filter plates. The plurality of filter cloth suspension rods extend in the Y-axis direction, are spaced apart from each other in the X-axis direction, and are rotatable about a rotation axis extending along the Y-axis direction. Both ends of this filter bag are connected to a pair of hexagonal rods through a bevel gear. Sprockets are also provided on both ends of the filter cloth hanging rods, and chain hanging filter cloth hangs on the sprockets.

When the hexagonal rods are rotated in the forward direction, the filter cloth hanging rods are also rotated in the forward direction, and the filter cloth is raised. On the other hand, if the hexagonal rods rotate in the opposite direction, the filter bag suspension rods are also rotated in the opposite direction, and the filter bag is lowered.

A filter cloth movable filter press having the above-mentioned filter cloth lifting means is disclosed in Korean Patent No. 10-0541328 (Filter Press), Korean Patent Laid-Open No. 10-2012-0083265 (filter cloth hanging apparatus and filter cloth (Traveling filter press) and Korean Patent No. 10-1308939 (filter cloth movable filter press).

Korea Patent No. 10-0541328 (filter press) Korean Patent Laid-Open No. 10-2012-0083265 (hanger device of filter cloth in filter cloth traveling filter type and filter press running filter cloth) Korean Registered Patent No. 10-1308939 (filter cloth movable filter press)

In current filtration presses, the bevel gears must be provided on both ends of all suspension rods in order to transmit the rotational force of the hexagonal bar to the filter cloth suspension bar. Also, in the present filter bag movable filter press, both ends of the bag filter bag must move along the hexagonal rod when the filter plates are in contact with each other or fall off. Therefore, the hexagonal bar and the bevel gear must be coupled through the bearing. Therefore, according to the present filter bag movable filter press, the filter fabric lifting device has a complicated configuration, which causes maintenance / repair difficulty.

In addition, in the current filter fabric filter press, if the hexagonal processing of the hexagonal bar is not precisely processed, the linear movement of the filter cloth bar is not performed, and therefore, a very complicated procedure of the hexagonal bar must be carried out. And the length of the hexagonal bar that can be manufactured is limited, so that the number of filter plates that can be installed can not be limited.

Therefore, it is an object of the present invention to provide a new type of filter mobile filter press capable of solving the above-mentioned problems of the existing filter mobile filter press.

The present invention provides a filter cloth movable filter press which is configured to simultaneously transmit the rotational force of a rotating drive shaft during operation of a drive motor to all suspension rods suspended in a filter cloth between a plurality of filter plates. In this filter press, the end portions of the front and rear suspending rods adjacent to each other in the forward and rearward directions are connected to the unit joints which are folded or unfolded when the filter plate moves back and forth. The joint rods provided at the joints of the unit joints are connected to the front connecting member and the rear connecting member, respectively, and the front connecting member and the rear connecting member are composed of a chain or a timing belt.

Wherein the unit joint body includes: an inner front joint piece having front and rear ends rotatably coupled to an end of the front suspension bar and an inner end of the joint rod; An inner rear joint having an inner end of the articulation rod and front and rear ends rotatably coupled to ends of the rear suspension rod; An outer front joint having an end portion of the front suspension bar and front and rear ends rotatably coupled to an outer end of the joint rod; And an outer rear joint having an outer end of the joint rod and front and rear ends rotatably coupled to ends of the rear suspending rod, respectively.

At this time, the front connecting member is located between the inner front joint and the outer front joint, and the rear connecting member is located between the inner rear joint and the outer rear joint.

The unit articulation includes a front joint having an end portion of the front suspension bar and front and rear ends rotatably coupled to the center of the joint rod, respectively; And a rear joint having a front end and a rear end rotatably coupled to the center of the joint rod and the end of the rear suspending rod, respectively.

At this time, the front connecting member and the rear connecting member are located on opposite sides of the front joint and the rear joint. Alternatively, the front linking members are provided in pairs and are positioned on opposite sides of the front linking member, and the rear linking members are provided in a pair, and are positioned on opposite sides of the rear linking member.

According to the present invention, since the means for simultaneously lifting and lowering the filter cloths positioned between the filter plates does not include any part such as a hexagonal bar, a bevel gear, a bearing or the like, first, the configuration of the filter press is simple, Maintenance and repair are very convenient, and third, there is no need of complicated work such as elaborate machining of a hexagonal rod in manufacturing a filter press.

In addition, according to the present invention, the number of filter plates that can be installed is not particularly limited because only the number of filter plates can be increased by adding unit joints and connecting chains.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a filter cloth movable filter press according to the present invention.
2 is a partially enlarged perspective view of the filter cloth filter press shown in Fig.
FIG. 3 is a cross-sectional view showing a filter plate and a filter cloth of the filter moving filter press shown in FIG. 1;
Figs. 4 and 5 are partial plan views showing a modification of the filter cloth movable filter press shown in Fig. 1. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a filter cloth movable 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.

1 to 3, the filter removable filter press 100 according to the present invention includes a frame, a pressure plate 144, a cylinder 142, filter plates 150, hanging rods 152, .

The frame includes a front plate 130 and a rear plate 140 which are spaced apart in the front-rear direction. A pedestal 132a is fixed to the upper surface of the front plate 130. A driving motor 132 and a speed reducer 134 are supported on the pedestal 132a. A drive shaft 136 extending in the left and right direction is coupled to the speed reducer 134. The drive shaft 136 is rotatably supported by a support 136a fixed to the upper surface of the front plate 130. [ The drive shaft 136 rotates in a forward direction or a reverse direction when the drive motor 132 is operated.

The pressure plate 144 is disposed between the front plate 130 and the rear plate 140 and is provided so as to be able to slide along the front-back direction. The pressure plate 144 is connected to the front plate 130 via a chain (not shown).

The filter plates 150 are disposed between the front plate 130 and the pressure plate 144 and are arranged in parallel to each other and are provided so as to be able to slide along the forward and backward directions. The left and right ends of the filter plates 150 are connected to the chain (not shown). Therefore, the filter plates 150, which are in close contact with each other, are attracted by the back pressure plate 144 and are separated from each other while being moved backward.

The cylinder 142 is fixed to the rear surface of the rear plate 140. The rod of the cylinder 142 passes through the rear plate 140 and is fixed to the pressure plate 144. Accordingly, when the cylinder 142 is operated, the pressure plate 144 advances to separate the filter plates 150 while keeping the filter plates 150 in close contact with each other or moving backward.

The hanging rods 152 are respectively located on the upper portions of the filter plates 150 and extend in the left-right direction and are arranged in parallel along the front-rear direction. The left and right ends of the hanging rod 152 are rotatably supported by a support base 156a fixed to the upper surface of the filter plate 150. [ A sprocket 152a for a suspending chain is provided at the left and right ends of the suspending rod 152. A suspending chain 156 hanging the filter cloth 154 is wound around the sprocket 152a for the suspending chain. Accordingly, when the suspension rod 152 rotates, the filter cloth 154 is lifted and raised between the filter plates 150.

One end of the front hanging rod 152 and the one end of the rear hanging rod 152 which are adjacent to each other in the filtration media moving filter press 100 as described above are connected to the unit joints 110 and the connecting chains 112c and 114c have. The unit joints 110 and the connecting chains 112c and 114 connect the left ends of the front and rear suspension rods 152 but may connect the right ends of the front and rear suspension rods 152, Do. In addition, a timing belt (not shown) may be used instead of the connecting chains 112c and 114c.

1 and 2, the unit joint body 110 includes a pair of front joint pieces 112a and 112b, a pair of rear joint pieces 114a and 114b, a joint rod 116, .

The front joint pieces 112a and 112b are composed of an inner front joint piece 112a and an outer front joint piece 112b. The front end of the inner front joint piece 112a rotatably engages with the left end of the front suspending rod 152 and the rear end thereof rotatably engages with the inner end of the joint rod 116. [ The front outer joint piece 112b is located on the outer side of the inner front joint piece 112a and has a front end rotatably engaged with the left end of the front suspending rod 152, And is rotatably coupled to the stage.

The rear joint pieces 114a and 114b are composed of an inner rear joint piece 114a and an outer rear joint piece 114b. The front end of the inner rear joint piece 114a rotatably engages with the inner end of the joint rod 116 and the rear end thereof rotatably engages with the left end of the rear suspending rod 152. [ The front end of the outer rear joint piece 114b rotatably engages with the outer end of the joint rod 116 and the rear end thereof rotatably engages with the left end of the rear suspending rod 152.

In the unit joints 110, joints 116 are provided. When the left and right ends of the adjacent hanging rods 152 are connected to each other through the unit joints 110, the unit joints 110 are folded when the filter plates 150 are in close contact with each other, ) Are separated from each other.

The connecting chains 112c and 114c are connected to a front connecting chain 112c located between the front joint pieces 112a and 112b and a rear connecting chain 114c located between the rear joint pieces 114a and 114b .

The front link chain 112c is wound around a sprocket provided at the left end of the front suspension bar 152 and a sprocket provided at the joint rod 116. [ The rear link chain 114c is wound on another sprocket provided on the joint rod 116 and a sprocket provided on the left end of the rear suspension rod 152. [ Since the connecting chains 112c and 114c are provided on all of the hanging rods 152 that are adjacent to each other in the back and forth direction, when one of the hanging rods 152 rotates, the remaining hanging rods 152 also move in the same direction And simultaneously rotate.

The foremost hanging rod located at the foremost position among the hanging rods 152 is connected to the driving shaft 136 through the unit joint body 110 and the connecting chains 112c and 114c. Accordingly, when the drive shaft 136 rotates, the forwardmost hanging rod rotates, and the remaining hanging rods 152 also rotate. When this simultaneous rotation of the suspension rods 152 is accomplished, the lifting and lowering of the filter cloths 154 positioned between the filter plates 150 is performed at the same time.

Hereinafter, the operation of the filter removable filter press 100 will be described.

When the cylinder 142 is operated with the filter plates 150 separated from each other, the pressure plate 144 moves forward. At this time, the filter plates 150 are pushed by the pressure plate 144 to come in close contact with each other, and the expanded unit joints 110 are folded. The connecting chains 112c and 114c are connected to the suspension rods 152 and the joint rods (116). When the filter plates 150 are tightly contacted with each other, the sludge is press-fitted, and the sludge is dewatered.

When the dewatering process is continued for a predetermined time and dewatering of the sludge is completed, the cylinder 142 is operated in reverse to move the pressure plate 144 backward. Then, the filter plates 150 are attracted by the pressure plate 144 and are separated from each other. In this process, the sludge cake is primarily separated from the filter cloths 154 while falling freely. The folded unit joints 110 are stretched while the filter plates 150 are falling and the connecting chains 112c and 114c continue to hold the hanging rods 152 and the joint rods 116 .

When the separation of all the filter plates 150 is completed, the drive motor 132 is operated to rotate the drive shaft 136 in the normal direction. The rotational force of the drive shaft 136 is simultaneously transmitted to all the suspension rods 152 through the connection chains 112c and 114c so that the suspension rods 152 also rotate in the forward direction. When the suspension rods 152 rotate in the forward direction, the filter cloth 154 descends, at which time the sludge cake is secondarily separated from the filter cloths 154. The drive motor 132 is then operated to rotate the drive shaft 136 in the opposite direction and at this time all of the suspension rods 152 simultaneously rotate in the opposite direction to raise the filter cloths 154 to their original positions.

When the rising of the filter cloths 154 is completed, the above process is repeated.

Alternatively, unit joints 210 of other types may be used in place of the unit joints 110 shown in FIGS. 1 to 3. The unit joint 210 includes one front joint 212, one rear joint 214, and a joint rod 216 as shown in FIG. The front end of the front joint piece 212 rotatably engages with the left end of the front suspender rod 152 and the rear end thereof rotatably engages with the center portion of the joint rod 216. The front end of the rear joint piece 214 is rotatably engaged with the center portion of the joint rod 216 and the rear end thereof is rotatably engaged with the left end of the rear suspending rod 152.

In this case, the front link chain 212c is wound on the sprocket provided at the left end of the front suspension bar 152 and the sprocket provided at the inner end (or outer end) of the joint rod 216. The rear connecting chain 214c is positioned on the opposite side of the front connecting chain 212c on the basis of the unit joint 210 and the sprocket provided on the outer end (or inner end) Is wound on the sprocket provided at the left end of the sprocket 152.

The unit joints 110 shown in FIGS. 1 to 3 may be replaced with unit joints 310 as shown in FIG. The unit joints 310 have the same shape as the unit joints 210 shown in FIG.

In this case, the front connecting chain 312c and the rear connecting chain 314c are each provided as a pair as shown in FIG. The pair of front link chains 312c are located on opposite sides of the front joint piece 312 and are wound on a sprocket provided on the front suspension bar 152 and a sprocket provided on the articulation rod 316. [ The pair of rear link chains 314c are positioned on opposite sides of the rear joint 314 and are wound on a sprocket provided on another sprocket and a rear suspension bar 152 provided on the joint rod 316. [

The unit joints 110 and the connecting chains 112c and 114c may be provided at one end of the hanging rod 152 as shown in FIGS. 1 to 3. However, as shown in FIG. 6, Or alternatively at opposite ends of the rod 152. For example, if numbers are assigned to numbers 1 through number from the front plate 130 to the rear plate 140 (the unit joints 110 and the connecting chains 112c and 114c), the number of odd- 152, and those having an even number are provided at the right end of the hanging rod 152.

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 is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100: Filter cloth removable filter press
110, 210, 310: unit joints
112a, 112b, 212, 312:
112c, 212c, and 312c:
114a, 114b, 214, 314:
114c, 214c, 314c: rear connecting chain
132: drive motor 136: drive shaft
150: Filter plate 152:
154: Filter cloth

Claims (6)

The filter bag movable up and down while rotating all drive rods suspended in the filter cloth between the plurality of filter plates to transmit the rotation force of the drive shaft rotating during operation of the drive motor,
Wherein an end portion of the front suspension bar and a rear end portion of the rear suspension bar adjacent to each other are connected to each other by a unit joint which is folded or unfolded when the filter plate is moved back and forth, Wherein the front connecting member and the rear connecting member are connected to the end portion, the front connecting member and the rear connecting member, respectively, the chain or the timing belt. The method according to claim 1,
Wherein the unit joint comprises:
An inner front articulation having front and rear ends rotatably coupled to an end of the front suspension bar and an inner end of the articulation rod, respectively;
An inner rear joint having an inner end of the articulation rod and front and rear ends rotatably coupled to ends of the rear suspension rod;
An outer front joint having an end portion of the front suspension bar and front and rear ends rotatably coupled to an outer end of the joint rod; And
And an outer rear joint having an outer end of the articulation rod and front and rear ends rotatably coupled to the end of the rear suspending rod, respectively. 3. The method of claim 2,
Wherein the front connecting member is located between the inner front joint and the outer front joint, and the rear connecting member is located between the inner rear joint and the outer rear joint. The method according to claim 1,
Wherein the unit joint comprises:
A front joint having an end portion of the front suspension bar and front and rear ends rotatably coupled to the center of the joint rod; And
And a rear articulation having front and rear ends rotatably coupled to the center of the articulation rod and the end of the rear suspending rod, respectively. 5. The method of claim 4,
Wherein the front connecting member and the rear connecting member are located opposite to each other with respect to the front joint and the rear joint. 5. The method of claim 4,
Wherein the front linking members are provided in a pair and opposed to each other with respect to the front joints, and the rear linking members are provided in a pair, and are positioned on opposite sides of the rear jointing line.

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