FIBER DISCFILTER WITH MEANS OF FORMING GROOVES ON THE SURFACE OF FILTER CLOTHS

Abstract

The present disclosure relates to a fiber discfilter, and an object of the present disclosure is to provide a fiber discfilter with a means of forming grooves on a surface of filter cloths, the fiber discfilter being configured such that foreign substances in a deep part of a filter cloth having bristles as well as foreign substances on a surface of the filter cloth may be smoothly captured during a process of filtering inflow water, and all the foreign substances captured on the surface part and in the deep part of the filter cloth may be smoothly removed during a cleaning process by a cleaning means. The present disclosure provides a fiber discfilter including a groove forming means for forming a groove in a surface of a filter cloth, the fiber discfilter including: a filter unit configured such that a plurality of filter segments each having front and rear surfaces on which filter cloths each having a surface provided with bristles are installed is installed on an outer portion of a drum so that inflow water is filtered by being introduced into the filter segments while passing through the filter cloths; a cleaning means configured to remove foreign substances captured in the filter cloths; and a groove forming means disposed to be positioned at the periphery of the filter unit and having a plurality of protrusions configured to be inserted into the surface of the filter cloth and form grooves in the surface of the filter cloth when the filter unit rotates, such that foreign substances on the surface of the filter cloth and foreign substances in a deep part of the filter cloth are uniformly captured during a process of filtering the inflow water, and the foreign substances captured in the deep part of the filter cloth are exposed during a process of cleaning the filter cloth, such that the foreign substances captured in the deep part are smoothly removed.

Claims

1. A fiber discfilter with a means of forming grooves on a surface of filter cloths, the fiber discfilter comprising: a filter unit (110) configured such that a plurality of filter segments (111) each having front and rear surfaces on which filter cloths (113) each having a surface provided with bristles are installed is installed on an outer portion of a drum (112) so that inflow water is filtered by being introduced into the filter segments (111) while passing through the filter cloths (113); a cleaning means (130) configured to remove foreign substances captured in the filter cloths (113); and a groove forming means (140) disposed to be positioned at the periphery of the filter unit (110) and having a plurality of protrusions (141) configured to be inserted into the surface of the filter cloth (113) and form grooves in the surface of the filter cloth (113) when the filter unit (110) rotates, such that foreign substances on the surface of the filter cloth (113) and foreign substances in a deep part of the filter cloth (113) are uniformly captured during a process of filtering the inflow water, and the foreign substances captured in the deep part of the filter cloth (113) are exposed during a process of cleaning the filter cloth, such that the foreign substances captured in the deep part are smoothly removed.

2. The fiber discfilter of claim 1, wherein each of the protrusions (141) is a rigid protrusion (1411) with a fixed shape and a fixed size.

3. The fiber discfilter of claim 2, wherein the rigid protrusions (1411) is formed in a triangular shape in which a width (W1) of an inner end thereof is larger than a width (W2) of an outer end thereof.

4. The fiber discfilter of claim 1, wherein each of the protrusions (141) is an elastic protrusion (1412) having a ball (1414) installed at an end of an elastically deformable stick (1413).

5. The fiber discfilter of claim 1, wherein the plurality of protrusions (141) comprises a combination of two or more types of protrusions (141) having different protruding lengths.

6. The fiber discfilter of claim 1, wherein the groove forming means (140) is configured separately from the cleaning means (130) such that the protrusions (141) are formed on a board (140) fixedly installed on a support (150) for fixing the cleaning means (130) or fixedly installed on a separate structure.

7. The fiber discfilter of claim 1, wherein the protrusions (141) of the groove forming means (140) are formed or installed directly on the cleaning means (130) so as to be formed integrally with the cleaning means (130).

8. The fiber discfilter of claim 1, wherein the cleaning means (130) comprises a suction holder (131) configured to remove the foreign substances on the filter cloth (113) by sucking the foreign substances, wherein the fiber discfilter further comprises a blocking means (160) positioned at a rear end of the cleaning means (130) based on a rotation direction D of the filter unit (110), and wherein the blocking means (160) has a plurality of blocking protrusions (161) which is inserted into the respective grooves formed in the surface of the filter cloth (113) by the groove forming means (140) to block the grooves in order to reduce a loss of a suction force of the suction holder (131).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG. 1 is a structural front view of a fiber discfilter according to an exemplary embodiment of the present disclosure;

[0032] FIG. 2 is a structural side view illustrating a state in which groove forming means having rigid protrusions according to the present disclosure are installed on supports for fixing suction holders and disposed at front and rear sides of a filter segment;

[0033] FIG. 3 is a perspective view illustrating a state in which the groove forming means having the rigid protrusions according to the present disclosure is installed on the supports for fixing the suction holder;

[0034] FIG. 4 is a top plan view of the groove forming means having a board and the rigid protrusions;

[0035] FIG. 5 is a structural side view illustrating a state in which elastic protrusions according to the present disclosure are formed integrally with the suction holders and disposed at the front and rear sides of the filter segment together with the suction holders;

[0036] FIG. 6 is a perspective view illustrating a state in which the elastic protrusions according to the present disclosure are formed integrally with the suction holder;

[0037] FIG. 7 is a top plan view illustrating a state in which the elastic protrusions according to the present disclosure are formed integrally with the suction holder;

[0038] FIG. 8 is a perspective view illustrating a state in which a blocking means according to the present disclosure is further installed at a lower end of the suction holder;

[0039] FIG. 9 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a suction-type cleaning means;

[0040] FIG. 10 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a spray-type cleaning means;

[0041] FIG. 11 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a cleaning means implemented by a combination of the suction-type cleaning means and the spray-type cleaning means; and

[0042] FIG. 12 is a front view illustrating a state in which a plurality of grooves is formed in a filter segment assembly by the groove forming means according to the present disclosure.

EXPLANATION OF SYMBOLS

Explanation of Symbols for the Main Parts of the Drawing

[0043] 110: filter unit 111: filter segment [0044] 112: drum 113: filter cloths [0045] 120: drive means 130: cleaning means [0046] 131: suction holder 132: spray nozzle [0047] 140: groove forming means 141: protrusion [0048] 1411: rigid protrusion 1412: elastic protrusion [0049] 1413: stick 1414: ball [0050] 142: board 1421: bolt through port [0051] 160: blocking means 161: blocking protrusion

DETAILED DESCRIPTION OF THE EMBODIMENT

[0052] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the description of the present disclosure, the specific descriptions of related well-known functions or configurations will be omitted when it is determined that the specific descriptions may unnecessarily obscure the subject matter of the present disclosure.

[0053] FIG. 1 is a structural front view of a fiber discfilter according to an exemplary embodiment of the present disclosure, FIG. 2 is a structural side view illustrating a state in which groove forming means having rigid protrusions according to the present disclosure are installed on supports for fixing suction holders and disposed at front and rear sides of a filter segment, FIG. 3 is a perspective view illustrating a state in which the groove forming means having the rigid protrusions according to the present disclosure is installed on the supports for fixing the suction holder, FIG. 4 is a top plan view of the groove forming means having a board and the rigid protrusions, FIG. 5 is a structural side view illustrating a state in which elastic protrusions according to the present disclosure are formed integrally with the suction holders and disposed at the front and rear sides of the filter segment together with the suction holders, FIG. 6 is a perspective view illustrating a state in which the elastic protrusions according to the present disclosure are formed integrally with the suction holder, FIG. 7 is a top plan view illustrating a state in which the elastic protrusions according to the present disclosure are formed integrally with the suction holder, FIG. 8 is a perspective view illustrating a state in which a blocking means according to the present disclosure is further installed at a lower end of the suction holder, FIG. 9 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a suction-type cleaning means, FIG. 10 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a spray-type cleaning means, FIG. 11 is a structural front view illustrating an installation position of the groove forming means in a fiber discfilter including a cleaning means implemented by a combination of the suction-type cleaning means and the spray-type cleaning means, and FIG. 12 is a front view illustrating a state in which a plurality of grooves is formed in a filter segment assembly by the groove forming means according to the present disclosure.

[0054] A fiber discfilter according to the present disclosure includes a filter unit 110, a drive means 120, a cleaning means 130, and a groove forming means 140.

[0055] The filter unit 110 includes a plurality of filter segments 111 provided on an outer portion of a drum 112. Filter cloths 113, which have surfaces on which bristles are disposed, are provided on front and rear surfaces of each of the filter segments 111, such that foreign substances contained in inflow water, which is introduced through the front and rear surfaces of the filter segment 111, are filtered out by the filter cloths 113, and treated water from which the foreign substances are removed is discharged into the drum 112.

[0056] Meanwhile, the plurality of filter segments 111 is distributed in a circumferential direction of the drum 112 on the outer portion of the drum 112. The plurality of filter segments 111 is disposed in the circumferential direction of the drum 112 so that lateral surfaces of the two adjacent filter segments 111 are in close contact with each other.

[0057] A ring-shaped filter segment assembly, which is configured by the plurality of filter segments 111 disposed and installed in the circumferential direction of the drum 112, is provided in plural, and the plurality of filter segment assemblies is installed to be spaced apart from one another at a predetermined interval in a longitudinal direction of the drum 112.

[0058] Therefore, the plurality of filter segments 111 is distributed in the circumferential direction and the longitudinal direction of the drum 112 and configured to be rotated together with the drum 112.

[0059] The drive means 120 serves to rotate the drum 112 and includes a motor 121 and a power transmission mechanism 122 connecting the motor 121 and the drum 112. The power transmission mechanism 122 may include a belt or a chain.

[0060] The cleaning means 130 are installed to be positioned at front and rear sides of the filter segment assembly installed on the drum 112.

[0061] The cleaning means 130 may be configured as a spray-type cleaning device that removes foreign substances by separating the foreign substances captured by the filter cloths 113 by spraying water to the filter cloths 113 using a plurality of spray nozzles 132. Alternatively, the cleaning means 130 may be configured as a suction-type cleaning device that removes foreign substances by collecting the foreign substances, which are captured by the filter cloths 113, by means of vacuum suction using a suction holder 131.

[0062] Because the filter unit 110, the drive means 120, and the cleaning means 130 may be configured to be identical to a filter unit, a drive means, and a cleaning means which are applied to a fiber discfilter already widely used, more detailed descriptions of the filter unit 110, the drive means 120, and the cleaning means 130 will be omitted.

[0063] The groove forming means 140 serves to form grooves in a surface of the filter cloth 113 that has bristles. The groove forming means 140 has a plurality of protrusions 141 configured to be inserted into the surface of the filter cloth 113. The groove forming means 140 are disposed at the front and rear sides of the ring-shaped filter segment assembly and extend in a direction that traverses a part of the filter segment assembly, such that the groove forming means 140 are configured to form the plurality of grooves 114 in the surfaces of the filter cloths 113 when the filter unit 110 rotates.

[0064] Meanwhile, the protrusions 141 may be rigid protrusions 1411 with fixed shapes and fixed sizes and configured to form the grooves in the surface of the filter cloth 113 as the rigid protrusions 1411 are inserted into the surface of the filter cloth 113 that has the bristles.

[0065] The rigid protrusion 1411 may be formed in a triangular shape in which a width W1 of an inner end thereof is larger than a width W2 of an outer end thereof so that the rigid protrusion 1411 more smoothly forms the groove by being inserted into the surface of the filter cloth 113 and a deep part of the filter cloth 113 is exposed more appropriately.

[0066] In addition, the protrusion 141 may be an elastic protrusion 1412 including a ball 1414 installed at an end of an elastically deformable stick 1413. Like the rigid protrusion 1411, the elastic protrusion 1412 is configured to form the groove in the surface of the filter cloth 113 by being inserted into the surface of the filter cloth 113.

[0067] Meanwhile, the stick 1413 is made of spring steel or synthetic resin so as to be elastically deformable. The stick 1413 is bent when a relatively great force is applied due to tangling of the bristles or adhesion of the foreign substances during the process of forming the groove in the surface of the filter cloth 113, thereby preventing damage to the filter cloth 113.

[0068] The ball 1414 is installed or formed at the end of the stick 1413 and has a relatively larger diameter than the stick 1413.

[0069] According to the elastic protrusion 1412 having the stick 1413 and the ball 1414, the stick 1413 is bent in accordance with the state of the bristles during the process of forming the groove in the surface of the filter cloth 113, thereby preventing a great force from being applied to the bristles and thus preventing damage to the bristles. Further, the ball 1414 having a relatively larger diameter than the stick 1413 is inserted into the surface of the filter cloth 113 and passes between the bristles by the rotation of the filter unit 110, thereby inducing separation and exposure of foreign substances captured in the deep part of the filter cloth 113.

[0070] Meanwhile, the plurality of protrusions 141 provided in the groove forming means 140 may include a combination of two or more types of protrusions 141 having different protruding lengths.

[0071] For example, FIG. 7 illustrates a configuration in which two types of elastic protrusions 1412 having different protruding lengths are combined.

[0072] In the case in which the plurality of protrusions 141 includes the combination of the two or more types of protrusions 141 having different protruding lengths as described above, it is possible to form the grooves having various depths at a time.

[0073] The protrusion 141, configured as described above, may be formed or provided on a board 142 fixedly installed on supports 150 for supporting the cleaning means 130, or the protrusion 141 may be formed or provided on the board 142 fixedly installed on a separate structure. The protrusion 141 may be configured as a structure provided separately from or independently of the cleaning means 130, or the protrusion 141 may be formed or provided directly on the cleaning means 130 so that the protrusion 141 is provided integrally with the cleaning means 130.

[0074] Meanwhile, the board 142 has rectangular bolt through ports 1421 that elongate and extend in a direction orthogonal to the surface of the filter cloth 113, such that depths of the protrusions 141 inserted into the surface of the filter cloth 113 may be adjusted in accordance with the state of the filter cloth 113.

[0075] That is, angled brackets 151, which are bent in an L shape, are installed on the supports 150 or the structures on which the board 142 is fixedly installed, the board 142 is fixed by bolting in the state in which the board 142 is seated on the angled brackets 151, and the rectangular bolt through ports 1421 extending in the direction orthogonal to the surface of the filter cloth 113 are formed in the board 142. Therefore, the board 142 may be fixed to the angled brackets 151 by bolting in a state in which positions of the protrusions 141 are adjusted by moving the board 142 toward or away from the filter cloth 113. As a result, a manager may adjust the insertion depths of the protrusions 141 in accordance with the state of the filter cloth 113.

[0076] The fiber discfilter including the groove forming means 140 configured as described above may further include a blocking means 160 configured to prevent efficiency in sucking foreign substances from deteriorating due to an inflow of outside air through the groove formed in the surface of the filter cloth 113.

[0077] The blocking means 160 is restrictively applied only in the case in which the cleaning means 130 includes the suction holder 131. The blocking means 160 is disposed to be positioned at a rear end of the suction holder 131 based on a rotation direction D of the filter unit 110. The blocking means 160 may be fixedly installed on the suction holder 131 or fixedly installed on a separate bracket.

[0078] The blocking means 160 includes a plurality of blocking protrusions 161 which are inserted into the grooves formed in the surface of the filter cloth 113 by the groove forming means 140, thereby blocking flow paths formed by the grooves.

[0079] The blocking means 160 formed as described above closes the grooves formed in the filter cloth 113 from a portion behind the suction holder 131, thereby preventing a suction force of the suction holder 131 from being lost through the grooves during the process in which the suction holder 131 sucks the foreign substances captured in the filter cloth 113, and thus inducing smooth suction of the foreign substances.

[0080] Like a general fiber discfilter, the fiber discfilter according to the present disclosure configured as described above is installed in a water channel or a water tub into which inflow water such as wastewater, dirty water, purified water, rainwater, or process water is introduced, and the fiber discfilter filters out foreign substances contained in the inflow water.

[0081] The groove forming means 140 according to the present disclosure may be installed at the front end or the rear end of the cleaning means 130 based on the rotation direction D of the filter unit 110. Alternatively, the groove forming means 140 may be installed at any position as long as the groove forming means 140 may smoothly form the groove in the surface of the filter cloth 113 without interfering with peripheral structures.

[0082] For example, FIG. 9 illustrates a structure in which the groove forming means 140 is installed on at least one of the front end of the suction holder 131, the rear end of the suction holder 131, and any position irrelevant to the suction holder 131. FIG. 10 illustrates structure in which the groove forming means 140 is installed on at least one of the front end of the spray nozzle 132, the rear end of the spray nozzle 132, and any position irrelevant to the spray nozzle 132. FIG. 11 illustrates a structure in which the groove forming means 140 is installed on at least one of the front and rear ends of the suction holder 131, the front and rear ends of the spray nozzle 132, and any position.

[0083] As described above, the groove forming means 140 according to the present disclosure may be freely installed without limitation to the installation position.

[0084] Meanwhile, during the filtering process of filtering the inflow water using the filter cloth 113 provided in the filter segment 111, the filter unit 110 may be rotated intermittently or consistently to always form the grooves in the surface of the filter cloth 113.

[0085] Meanwhile, the groove formed in the surface of the filter cloth 113 exposes the deep part of the filter cloth 113, thereby establishing an environment in which the foreign substances may be captured not only on the surface of the filter cloth 113, but also in the deep part of the filter cloth 113 during the filtering process of filtering the inflow water. As a result, in comparison with the related art, a larger quantity of foreign substances may be captured by the single filtering process, and the cleaning cycle may be increased.

[0086] Meanwhile, the groove forming means 140 according to the present disclosure improves cleaning efficiency while forming the groove in the surface of the filter cloth 113 even during the process of cleaning the filter cloth 113.

[0087] That is, the protrusions 141 provided on the groove forming means 140 according to the present disclosure are always kept inserted into the surface of the filter cloth 113 regardless of the filtering process or the cleaning process. Therefore, when the filter unit 110 rotates to perform the cleaning process, the plurality of grooves 114 extending in the circumferential direction of the filter unit 110 is formed in the surface of the filter cloth 113 in accordance with the rotational operation of the filter unit 110.

[0088] As described above, the plurality of grooves 114 formed in the surface of the filter cloth 113 exposes the foreign substances, which are captured in the deep part of the filter cloth 113, to the outside. In the state in which the foreign substances in the deep part are exposed through the plurality of grooves 114, the spray nozzle 132 constituting the cleaning means 130 sprays water or the suction holder 130 sucks the foreign substances, and as a result, not only the foreign substances on the surface of the filter cloth 113 may be removed, but also the foreign substances in the deep part may be effectively removed.

[0089] As described above, the fiber discfilter according to the present disclosure forms the plurality of grooves in the surface of the filter cloth 113 using the groove forming means 140, such that the foreign substances in the deep part of the filter cloth 113 as well as the foreign substances on the surface of the filter cloth 113 may be uniformly captured during the filtering process. As a result, the present disclosure is a very useful invention because the quantity of captured foreign substances may be significantly increased, and all the foreign substances on the surface part of the filter cloth 113 and in the deep part of the filter cloth 113 may be smoothly removed during the cleaning process.

[0090] The present disclosure is not limited to the specific exemplary embodiment described above, various modifications can be made by any person skilled in the art to which the present disclosure pertains without departing from the subject matter of the present disclosure as claimed in the claims, and the modifications are within the scope defined by the claims.