KR102519150B1 - Muti-fuctional loader of filter press with circulation type filter cloth - Google Patents

Abstract

The present invention provides a multifunctional loader of a filter press with a circulation-type filter cloth, which is improved compared to the traditional one. The multifunctional loader of a filter press with a circulation-type filter cloth is provided in a filter press with a circulation type filter cloth and comprises: a plurality of filter plates which are installed in a frame forming an overall frame to be closed and open through moving in forward and backward directions; and a filter cloth which is provided as a closed loop and circulates via each space between filter plates in an open state. The multifunctional loader of the filter press with a circulation type filter cloth comprises: a loader frame which is installed in the frame; a driving roller which is installed in the loader frame and circulates the filter cloth; a driving motor which is installed in the loader frame to drive the driving roller; a tension maintaining means which is installed in the loader frame to maintain tension of the filter cloth to be constant when the filter plates are open and closed; and a washing means which is installed in the loader frame to wash the filter cloth.

Description

Multifunctional loader of filter cloth circulation filter press {MUTI-FUCTIONAL LOADER OF FILTER PRESS WITH CIRCULATION TYPE FILTER CLOTH}

The present invention relates to a multi-function truck for a filter cloth circulation filter press provided to circulate closed-loop filter cloth.

Sewage discarded from homes or factories is treated after being sent to a sewage treatment plant, and sludge generated in this treatment process is treated through reduction processes such as concentration and dehydration. In addition, a dehydrator, which is one of the devices used in the sludge reduction process, separates the filtrate from the sludge, and is classified into belt press, filter press, screw press, centrifugal dehydrator, electric osmosis dehydrator, etc. according to the operating principle.

The filter press separates the filtrate from the sludge by injecting the sludge into an airtight chamber provided between the filter plates in a closed plate state (in close contact with each other), and then removing the sludge from the open chamber between the filter plates in an open state (separated from each other). It is a device that free-falls cake (dehydrated sludge).

Currently, a filter cloth circulation filter press, which is one type of such a filter press, is known. In the filter cloth circulation filter press, the filter cloth is provided in the form of a closed loop passing between filter plates. In addition, the filter cloth does not circulate in the closed plate state in which dehydration is performed, but in the open plate state after completion of dehydration, the filter cloth circulates so that the section of the filter cloth used for dehydration escapes between the filter plates and at the same time the section of the new filter cloth is located between the filter plates. do. When the section of the new filter cloth is located between the filter plates, a closed plate state is formed again and dehydration is performed.

The above filter cloth circulation filter press is disclosed in Patent Publication No. 10-2002-0082047 (filter press) and Patent Registration No. 10-2324708 (unmanned automatic tower type filter press device). In the above published patent publication, the filter plates are arranged in a horizontal direction, and in the above registered patent publication, the filter plates are arranged in a vertical direction.

Publication No. 10-2002-0082047 (filter press) Registered Patent Publication No. 10-2324708 (unmanned automatic tower type filter press device)

An object of the present invention is to provide an improved filter cloth circulating filter press compared to the prior art, particularly, a multifunctional cart for the filter cloth circulating filter press.

The present invention is a filter cloth circulation comprising a plurality of filter plates installed to close and open plates through forward and backward movements in a frame constituting the overall frame, and a filter cloth provided in a closed loop and circulating through each of the spaced apart spaces between the filter plates in an open state. Provided is a multifunctional cart for a filter cloth circulation filter press provided in a filter press. And the multi-function cart of the filter cloth circulation filter press includes a cart frame installed on the frame; a driving roller installed on the bogie frame and circulating the filter cloth; a drive motor installed on the bogie frame to drive the drive roller; Tension maintenance means installed on the bogie frame to maintain constant tension of the filter cloth when the filter plates are opened and closed; and a washing means installed on the truck frame to wash the filter cloth.

The tension maintaining means includes a plurality of fixing rollers installed on the bogie frame so as to be arranged in the front and rear directions; Elevation supports installed on the bogie frame to move up and down from the top of the fixed rollers; A plurality of tension rollers installed on the elevating support so as to be arranged in the front and rear directions; and a tension cylinder installed on the bogie frame to elevate the elevating support.

The tension cylinder raises the lift support when the filter plates are closed, and lowers the lift support when the filter plates are opened.

The washing unit may include a housing installed on the bogie frame and accommodating the fixed rollers therein; and a washing water injection pipe installed inside the housing and spraying washing water to a filter cloth circulating around the fixed rollers and the tension rollers.

The multifunctional cart of the filter cloth circulating filter press further includes meandering correction means installed on the bogie frame to be positioned between the drive roller and the tension maintaining means to correct meandering of the filter cloth.

The meandering correction means includes: meandering detection sensors installed on the bogie frame so as to be located on the left and right sides of the filter cloth; A pair of correction rollers disposed parallel to each other at the rear of the meander detection sensors; a rotary table arranged to support the left and right ends of the straightening rollers and to form a rear upward inclination that increases as it goes backward; bearings provided to be rotatable about an axis perpendicular to the rotary tables and supporting the rotary tables; a reciprocating block installed on the bogie frame to support the bearings and to reciprocate in the rearward inclined direction; and a pneumatic cylinder installed on the bogie frame and reciprocating the reciprocating block according to the output of the meandering sensor.

The bogie frame may be fixed to the frame.

Alternatively, the bogie frame may be installed on the frame so as to be able to move forward and backward. In this case, the bogie frame is fixed to a middle plate for pushing the filter plates forward to close the plates or pulling them backward to open the plates, and is fixed to the middle plate and back and forth together

According to the present invention, a driving roller and a driving motor for circulating the filter cloth, a tension maintaining means for maintaining constant tension of the filter cloth when the filter plates are opened and closed, and a washing means for washing the circulating filter cloth are all installed on the bogie frame. Therefore, there is no need to secure a separate place for disposing the upper driving roller, driving motor, tension maintaining means and washing means in the filter cloth circulation filter press.

In addition, according to the present invention, since the fixed rollers and the tension rollers of the tension maintaining means are arranged vertically and a part (fixed rollers) of the upper tension maintaining means is used as a washing means, a separate for washing means is provided in the bogie frame. There is no need to provide a place for

In addition, according to the present invention, since the meandering correction means for correcting the meandering of the filter cloth is also installed on the truck frame, there is no need to secure a separate place for the meandering correction means to be arranged in the filter cloth circulation filter press.

In addition, according to the present invention, since the bogie frame is fixed to the middle plate and moves forward and backward together with the middle plate, it can be applied to a multi-filter cloth circulating filter press.

1 is a perspective view showing a filter press for circulation of multiple filter cloths installed with a multi-function cart according to the present invention.
Figure 2 is a left side view of the multi-filter cloth circulation filter press shown in Figure 1;
FIG. 3 shows a state in which filter cloths are installed in the multi-filter cloth circulation filter press of FIG. 2 .
4 is an enlarged left side view of the inside of the housing shown in FIG. 2;
5 is a real photograph of a connecting link connecting the filter plates shown in FIG. 1 and a sludge supply member fixed to the connecting link, as viewed from the left side.
Figure 6 is a real picture of the sludge supply member shown in Figure 5.
FIG. 7 is a perspective view of the moving head shown in FIG. 1;
FIG. 8 is a perspective view of the back of the moving head shown in FIG. 7;

Hereinafter, preferred embodiments of the multifunctional cart of the filter cloth circulation filter press according to the present invention will be described in detail with reference to the drawings. The terms or words used below should not be construed as being limited to ordinary or dictionary meanings, and based on the principle that the inventor can appropriately define the concept of terms in order to best explain his or her invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

In the following, the multi-functional carts 200a and 200b according to the present invention will be described as an example in the case where the multi-function carts 200a and 200b are installed in the multi-filter cloth circulation filter press 100, and the multi-function carts 200a and 200b will be clearly understood. The multi-function carts 200a and 200b as well as the multi-filter cloth circulation filter press 100 will be described in detail.

As shown in FIGS. 1 and 2, the multi-function carts 200a and 200b according to the present invention are installed, and the multi-filter cloth circulation filter press 100 includes a frame 110, a front plate 112 and a back plate 114, It includes a first dehydration module D1 and a second dehydration module D2.

The frame 110 is a member constituting the entire frame. The front plate 112 is fixedly installed at the front end of the frame 110, and the back plate 114 is fixedly installed at the rear end of the frame 110. The first dehydration module D1 is a dehydration module located close to the front plate 114, and the second dehydration module D2 is a dehydration module located at the rear of the first dehydration module D1. The dehydration modules D1 and D2 are installed on the frame 110. Hereinafter, the dewatering modules D1 and D2 including the multifunctional carts 200a and 200b according to the present invention will be described in detail, but the case where the left and right sides are set based on a view from the rear to the front will be described as an example. do.

< Intermediate plate (130a, 130b) >

As shown in FIG. 2, the first dehydration module D1 and the second dehydration module D2 include a first middle plate 130a and a second middle plate 130b, respectively. The first middle plate 130a is installed on the frame 110 to move forward and backward from the rear of the front plate 112, and the second middle plate 130b is installed to move forward and backward from the rear of the first middle plate 130a. It is installed on the frame 110.

As shown in FIG. 2, a pair of cylinders 150 for the first middle plate are installed in the frame 110 so as to be spaced apart in the left and right directions, and the above first middle plate 130a is the cylinders 150 for the first middle plate. ) is coupled with the cylinder rod. Therefore, when the cylinder 150 for the first middle plate operates, the first middle plate 130a moves forward and backward. A hydraulic cylinder is used as the cylinder 150 for the first heavy plate.

< Filter plates (120a, 120b) >

1 and 2, the first dehydration module D1 includes a plurality of first filter plates 120a, and the second dehydration module D2 includes a plurality of second filter plates 120b. . The first filter plates 120a are arranged in parallel between the front plate 112 and the first middle plate 130a, and the second filter plates 120b are arranged in parallel between the first middle plate 130a and the second middle plate 130b. are listed Left and right ends of the filter plates 120a and 120b are slidably coupled to the frame 110 . Therefore, the first filtering plates 120a can move forward and backward between the front plate 112 and the first middle plate 130a, and the second filtering plates 120b move between the first middle plate 130a and the second middle plate 130b. You can go back and forth between them.

Upper guide rollers 122a and 122b extending in the left and right directions are rotatably provided at the upper end of each of the filter plates 120a and 120b. In addition, lower guide rollers 124a and 124b extending in the left and right directions are rotatably provided at the lower end of each of the filter plates 120a and 120b. In addition, at the upper end of each filter plate (120a, 120b), contact-preventing guide rollers (126a, 126b) are rotatably provided in a posture extending in the left and right directions one after another. The diameters of the contact-preventing guide rollers 126a and 126b and the diameters of the lower guide rollers 124a and 124b are larger than the thickness of the filter plates 120a and 120b in the front and rear directions, which means that the filter cloths 160a and 160b are opened. This is to avoid contact with the filter plates 120a and 120b when circulating between the filter plates 120a and 120b in the state.

As shown in FIG. 5, in the first dewatering module D1, the left and right sides of the filter plates 120a adjacent to each other are connected by a first connection link 180a, and the left and right sides of the rearmost filter plate 120a are connected. The left and right side surfaces of the side surface and the first middle plate 130a are also connected through the first connecting link 180a. Similarly, in the second dewatering module D2, the left and right sides of the filter plates 120b adjacent to each other are connected by the second connecting link 180b, and the left and right sides of the rearmost filter plate 120b and the second middle plate The left and right sides of (130b) are also connected to the second connection link (180b). In addition, the left and right sides of the foremost filter plate 120b of the second dehydration module D2 and the left and right sides of the first middle plate 130a are also connected by the second connection link 180b, and thereby the first dehydration module D1 and the second dehydration module D1. Module D2 is connected. For reference, the connection links 180a and 180b are omitted in FIGS. 1 and 2 .

As shown in FIG. 5, each connecting link 180a, 180b has a front portion 182a, 182b and a rear portion 186a, 186b, and a middle connecting the two portions 182a, 182b (186a, 186b). It includes regions 184a and 184b. Front long holes extending in the forward and backward directions are formed in the front portions 182a and 182b, and rear long holes extending in the front and rear directions are also formed in the rear portions 186a and 186b. In addition, front long hole projections 183a and 183b and rear long hole projections 187a and 187b are formed on the left side of each filter plate 120a and 120b, and upper projections 183a and 183b (187a and 187b) are formed on the right side as well. ) is formed. The front long hole protrusions 183a and 183b of the front filter plates 120a and 120b are inserted into the upper front long hole formed at the front parts 182a and 182b, and the upper and rear long hole formed at the rear part 186a and 186b are inserted into the rear long hole. The protrusions 187a and 187b for long holes on the rear side of the filter plates 120a and 120b are inserted, and after these insertions are made, the pins 188a and 188b are fastened to the protrusions 183a and 183b (187a and 187b) to form a connecting link. Departure of (180a, 180b) is prevented.

When the cylinder 150 for the first middle plate pulls the first middle plate 130a in a state in which the filter plates 120a and 120b are all opened (the state shown in FIGS. 1 and 2), the first middle plate 130a advances and the first middle plate 130a moves forward. 1 Close the filter plates 120a. In addition, the second filter plates 120b move forward while being guided by the first middle plate 130a while maintaining the opened state. When the advancement of the first middle plate 130a is completed, the second middle plate 130a moves forward and closes the second filter plates 120b.

When the second middle plate 130b reverses in a state in which all of the filter plates 120a and 120b are closed in the same way (not shown), the second filter plates 120b are opened while retracting in sequence. In addition, the second middle plate 130b continues to move backward, leading the second filter plates 120b even after all the second filter plates 120b are opened. The first middle plate 130a moves backward by pushing the first middle plate 130a, and the first filtering plates 120a are opened while moving backward in sequence by the first middle plate 130a moving backward.

< Filter cloth (160a, 160b) >

As shown in FIG. 3, the first dehydration module D1 includes a closed-loop first filter cloth 160a, and the second dehydration module D2 is separated from the first filter cloth 160a and positioned independently. It includes a second filter cloth (160b) in the form of a closed loop.

When the first filtering plates 120a are in an open state, spaced spaces are formed between the first filtering plates 120a. After sequentially winding the roller 124a and the upper guide roller 122a, the lower guide roller 124a of the first filter plate 120a located in front of each separation space is wound around and disposed in each separation space. . Therefore, in each spaced space, the first filter cloth 160a is disposed in two layers, and the two layers form a first filtering chamber in which sludge is pressed and dehydrated in a closed plate state.

When the second filter plates 120b are in an open state, spaced spaces are also formed between the second filter plates 120b. After sequentially winding the guide roller 124b and the upper guide roller 122b, the lower guide roller 124b of the second filter plate 120b located in front of each separation space is wound and arranged in each separation space. do. Therefore, in each spaced space, the second filter cloth 160b is disposed in two layers, and the two layers form a second filtering chamber in which sludge is pressed and dehydrated in a closed plate state.

< Sludge press-in and dewatering >

Previously, it has been described that the connecting links 180a and 180b have front portions 182a and 182b, rear portions 186a and 186b, and intermediate portions 184a and 184b, and the intermediate portions 184a and 184b are shown in FIG. 5 As shown in, the sludge supply members 170a and 170b are detachably coupled in an upright state.

The sludge supply member 170a of the first dewatering module D1 is tightly sandwiched between the first filter plates 120a in a closed plate state, and at this time, the inner end of the sludge supply member 170a (sludge supply member 170a) If is located on the left side, it means the right end, and if it is located on the right side, it means the left end] is tightly sandwiched between the two layers of the first filter cloth 160a forming the first filtering chamber. Similarly, the sludge supply member 170b of the second dewatering module D2 is tightly sandwiched between the second filter plates 120b in the closed plate state, and at this time, the inner end of the sludge supply member 170b is It is tightly sandwiched between two layers of the formed second filter cloth 160b.

As shown in FIG. 6, the above sludge supply members 170a and 170b have one front and rear through hole 172a and 172b and a plurality of left and right through holes 174a and 174b. 6 shows sludge supply members 170a and 170b having three left and right through holes 174a and 174b.

At the left and right ends of each of the filter plates 120a and 120b, as shown in FIG. 1, sludge injection holes 128a and 128b are opened in the front and rear directions. The sludge injection holes 128a and 128b located before and after the ) are communicated. In addition, the left and right through holes 174a of the sludge supply member 170a provided in the first dewatering module D1 communicate the upper and lower through holes 172a and the first room in the closed plate state, and the second dehydration module D2 The left and right through-holes 174b of the provided sludge supply member 170b communicate the upper and rear through-holes 172b and the second chamber in the closed plate state.

Therefore, when the sludge is pressed into the first sludge injection pipe 142a (see FIGS. 1 and 2) formed at the left and right ends of the front plate 112 in the closed plate state, the sludge enters the sludge injection holes 128a and the front and rear through holes 172a At the same time as moving backward along the sludge supply member 170a, it moves to each first filtering chamber through the left and right through holes 174a. And while this state is maintained for a predetermined time, sludge is dehydrated in the first dewatering module (D1). Similarly, when sludge is pressed into the second sludge injection pipe 142b (see FIG. 2) formed at the left and right ends of the second middle plate 130b in a closed plate state, the sludge enters the sludge injection holes 128b and the front and rear through holes 172b. ) Along with moving forward, each sludge supply member 170b moves to each second chamber through the left and right through holes 174b. And while this state is maintained for a predetermined time, sludge is dehydrated in the second dewatering module (D2).

During dehydration, the filtrate containing the sludge in the first filtering chamber passes through the two layers of first filter cloth 160a forming the first filtering chamber, and the surface projections provided on the front and rear surfaces of the first filtering plates 120a ( (not shown), and separated from the filtrate and dehydrated sludge, that is, sludge cake, remains in the first filtering chamber. And the filtrate that flows down is provided at the left and right ends of the lower side of each first filter plate 120a, and the first drain pipe 144a formed at the left and right ends of the front plate 112 along the filtrate drain holes (not shown) communicating with each other in the closed plate state. 1 and 2) and discharged to the outside.

Similarly, during dehydration, the filtrate containing the sludge in the second filtering chamber passes through the two-layered first filter cloth 160b forming the second filtering chamber and reaches the surfaces provided on the front and rear surfaces of the second filtering plates 120b. It flows down between protrusions (not shown), and the sludge cake remains in the second filtering chamber. And the filtrate flowing down is provided at the lower left and right ends of each second filter plate 120b, and the second drain pipe 144b formed at the left and right ends of the second middle plate 130b along filtrate drain holes (not shown) communicating with each other in the closed plate state. (see Fig. 2) and discharged to the outside.

On the other hand, it has been previously described that the sludge is supplied to the first chamber through the first sludge injection pipe 142a and supplied to the second chamber through the second sludge injection pipe 142b, but the sludge is supplied to the two sludge injection chambers It may be supplied to both the first filtering chamber and the second filtering chamber through only one of the pipes 142a and 142b.

In this case, as shown in FIG. 2, sludge passage pipes 132a are installed on the left and right sides of the first middle plate 130a, and the second sludge injection pipe 142b or the first sludge injection pipe 142a is sealed do. And the sludge passage pipe 132a communicates with the sludge injection hole 128a of the rearmost first filter plate 120a in the closed plate state, and also communicates with the sludge injection hole 128b of the foremost second filter plate 120b. Therefore, when the second sludge injection pipe 142a is closed, the sludge injected into the first sludge injection pipe 142a is not only supplied to the first filtering chamber, but also to the second filtering chamber after passing through the sludge passing pipe 132a. will also be supplied. If the first sludge injection pipe 142a is closed, the sludge injected into the second sludge injection pipe 142b is not only supplied to the second filtering chamber, but also to the first filtering chamber after passing through the sludge passage pipe 132a. will be supplied

< Multifunctional bogie (200a, 200b) >

The first dewatering module D1 and the second dewatering module D2 include a first multi-function cart 200a and a second multi-function cart 200b, which are one form of the present invention, respectively.

The first multifunctional bogie 200a includes a first bogie frame 202a, and the second multifunctional bogie 200a includes a second bogie frame 202b. It is installed on the frame so that it can be driven. And, as shown in FIG. 7, the second bogie frame 202b has a cross-section “c”-shaped transverse member 204b, and the transverse member 204b is fixed to the second middle plate 130b. Therefore, the second multi-functional cart (200b) moves forward and backward together with the second middle plate (130b). Similarly, the first bogie frame 202a is also fixed to the first middle plate 130a via the same transverse member (not shown) as the transverse member 204b above, and thereby the first multifunctional bogie 100a is It moves forward and backward together with the single plate 130a.

A first driving roller 212a for circulating the first filter cloth 160a is installed in the first bogie frame 202a, and a first driving motor 214a for driving the first driving roller 212a (Fig. 2) are also installed. A second driving roller 212b for circulating the second filter cloth 160b is installed in the second bogie frame 202b, and a second driving motor 214b for driving the second driving roller 212b (Fig. 2) are also installed.

In addition, a first tension maintaining means, a first washing means, and a first meandering correction means are installed in the first bogie frame 202a, and a second tension maintaining means and a second washing means are also installed in the second bogie frame 202b. And a second meandering correction means is installed.

The second tension maintaining means is installed on the second bogie frame 202b to be located between the second driving roller 212b and the second middle plate 130b, and as shown in FIG. 4, a plurality of second fixed rollers 221b. ) and a plurality of second tension rollers 222b. The second filter cloth 160b wound around the second driving roller 212b alternately winds around the second fixed roller 221b and the second tension roller 222b and circulates. 4 illustrates three second fixing rollers 221b and two second tension rollers 222b.

The second fixed rollers 221b extend in the left and right directions, are arranged in parallel in the front and rear directions, and are rotatably coupled to the second bogie frame 202b. The second tension rollers 222b extend in the left-right direction, are arranged in parallel in the front-back direction, and are rotatably coupled to a pair of second lifting supports 223b spaced apart in the left-right direction. The pair of second lifting supports 223b are movably coupled to the second bogie frame 202b, and are second fixed by one second tension cylinder 224b installed on the second bogie frame 202b. It moves up and down from the top of the rollers 221b.

The second tension cylinder 224b is controlled to raise the second lift support 223b when the second middle plate 130b advances, and lowers the second lift support 223b when the second middle plate 130b moves backward. As a result, the tension of the second filter cloth 160b can be maintained constant during the opening (backward) and closing (advance) of the second filter plates 120b.

Meanwhile, the first tension maintaining means is also the same as the second fixing roller 221b, the second tension roller 222b, the second lifting support 223b and the second tension cylinder 224b above the second tension maintaining means. It includes a first fixed roller 221a, a first tension roller 222a, a first elevating support 223a and a first tension cylinder 224a.

The second washing means is for washing the circulating second filter cloth 160b, and includes a second housing 232b and a plurality of second washing water injection pipes 234b as shown in FIGS. 1 to 3 do.

The second housing 232b is fixed to the second bogie frame 202b and accommodates the second fixed rollers 221b therein. The second washing water injection pipes 234b are located inside the second housing 232b parallel to each other while taking a posture of extending left and right. From the second washing water spray pipes 234b, washing water is sprayed to the second filter cloth 160b, which circulates around the second fixing rollers 221b and the second tension rollers 222b, and at this time, the second filter cloth ( As the sludge remaining in 160b) is removed from the second filter cloth 160b, it falls to the bottom of the second housing 232b together with the washing water. A drain (not shown) is formed on the bottom or side of the second housing 232b to drain the used washing water.

The first washing means is for washing the circulating first filter cloth 160a, and includes the same first housing 232a and the first washing water injection pipe as the second housing 232b and the second washing water injection pipe 234b. (234a).

Meanwhile, the first washing means and the second washing means may be provided in various well-known forms, unlike the above. For example, the first cleaning means and the second cleaning means may be configured like the ultrasonic cleaning device disclosed in Patent Registration No. 10-2313179.

The second meandering correction means is installed on the second bogie frame 202b to be located between the second driving roller 212b and the second tension maintaining means to correct the meandering of the second filter cloth 160b, FIG. As shown in, a pair of second meandering sensors (not shown), a pair of second correction rollers 241b, a pair of second rotary tables 242b, and a pair of second bearings 243b , A pair of second reciprocating blocks 244b and a pair of second pneumatic cylinders 246b.

Second meander detection sensors (not shown) are located behind the second drive roller 212b, located on the left and right sides of the second filter cloth 160b, and are fixed to the second bogie frame 202b.

The second correction rollers 241b are arranged parallel to each other at the rear of the second meander detection sensors in the traveling direction of the second filter cloth 160a and extend in the left and right directions. As shown in FIG. 3, the second filter cloth 160a circulates through the lower part of the front second straightening roller 241b, between the two second straightening rollers 241b, and the upper part of the rear second straightening roller 241b. .

The second rotation tables 242b are rotatably coupled to the left and right ends of the second correction rollers 241b. Further, the second rotary tables 242b are arranged to form a rear upward inclination that increases as they go backward. The second bearings 243b support the second rotary tables 242b and are provided to be rotatable about an axis extending in a direction perpendicular to the second rotary table 242b.

The second reciprocating blocks 244b support the second bearings 243b and are coupled to the second brackets 245b so as to reciprocate in the rearward and upward inclined direction. The second brackets 245b are fixed to the second bogie frame 202b. The second pneumatic cylinders 246b are fixed to the second brackets 245b to reciprocate the second reciprocating blocks 244b.

The first meandering correction means is installed on the first bogie frame 202a to be located between the first driving roller 212a and the first tension maintaining means to correct the meandering of the first filter cloth 160a, Meander detection sensors (not shown), second correction rollers 241b, second rotary tables 242b, second bearings 243b, second reciprocating blocks 244b, and second pneumatic cylinders ( 246b), a pair of first meandering detection sensors (not shown), a pair of first correction rollers 241a, a pair of first rotary tables 242a, a pair of first bearings 243a, It includes a pair of first reciprocating blocks 244a and a pair of first pneumatic cylinders 246a.

As in the filter cloth circulation filter press 100, when the filter cloths 160a and 160b circulate along a relatively long path, the filter cloths 160a and 160b may meander. Any one of (not shown), for example, comes into contact with the meandering sensor on the left side. And, as in this example, when the filter cloths 160a and 160b come into contact with the meandering sensor on the left, the right pneumatic cylinders 246a and 246b are operated to advance the right ends of the correcting rollers 241a and 241b, thereby moving the filter cloths forward. The meandering of the filter cloths 160a and 160b is corrected by correcting the meandering of the filter cloths 160a and 160b, or by moving the left ends of the correcting rollers 241a and 241b backward by operating the left pneumatic cylinders 246a and 246b.

On the other hand, it has been previously described that the first truck frame 202a is fixed to the first middle plate 130a so that the first multifunctional truck 100a moves forward and backward together with the first middle plate 130a. However, unlike this, the first bogie frame 202a may be fixed to the frame 110. In this case, the first multifunctional bogie 100a does not move forward and backward, and only the first middle plate 130a moves forward and backward.

< Moving head (300) >

As shown in FIG. 7 , the moving head 300 is installed on the frame 110 so as to move forward and backward between the second middle plate 130b and the back plate 114 . Also, a main cylinder 305 is fixed to the moving head 300, and a cylinder rod of the main cylinder 305 is coupled to the second middle plate 130b. Therefore, when the moving head 300 moves forward and backward while the main cylinder 305 is not operating, or when the main cylinder 305 operates while the moving head 300 is stopped, the second middle plate 130b moves forward and backward. make gin A hydraulic cylinder is used as the main cylinder 305 .

A pair of pinions 302 spaced apart in the left and right directions are rotatably coupled to the moving head 300, and a pinion motor 304 for rotating the pinions 302 is installed. 7 and 8 illustrate a pair of pinion motors 304 for rotating the pair of pinions 302, respectively, but only one pinion motor 304 may be provided, in which case a pair of pinions 302 are connected to each other and rotated simultaneously by one pinion motor 304. A pair of support rollers 303 that roll in contact with the upper surface of the frame 110 may be provided in the moving head 300 .

A pair of racks 301 spaced apart in the left and right directions are fixed to the frame 110, and a pinion 302 is engaged with the racks 301. Therefore, when the pinion 302 rotates, the moving head 300 moves forward and backward, and when the moving head 300 moves forward and backward, the second middle plate 130b connected to the moving head 300 by the main cylinder 305 also moves. It moves forward and backward together with the moving head 300.

The second middle plate 130b is located at the rearmost position when all of the filter plates 120a and 120b are opened, and is located in the foremost position when both of the filter plates 120a and 120b are closed. Therefore, if the main cylinder 305 is fixed to the back plate 114, the stroke of the main cylinder 305 should be as long as the distance between the rearmost position and the foremost position of the second middle plate 130b, so that the main cylinder 305 must be long In particular, as the number of filter plates 120a and 120b is increased or the sludge dewatering capacity is increased by providing three or more dewatering modules, the length of the main cylinder 305 must be increased.

However, as described above, when the main cylinder 305 is installed in the moving head 300, the position of the main cylinder 305 in the front-back direction can be changed by the moving head 300, so that the filter plates 120a and 120b Even if the number or number of dewatering modules increases, the stroke of the main cylinder 305 does not need to be lengthened at all, so the sludge dewatering capacity can be increased without limitation by increasing the number of filter plates 120a and 120b or the number of dewatering modules as necessary. can

When the moving head 300 is provided as described above, after the moving head 300 advances to a preset forward position, the main cylinder 305 strongly presses the second middle plate 130b forward to move the filter plates 120a and 150b. ) is firmly maintained, and at this time, the moving head 300 is strongly pressed backward due to the reaction of the force applied by the main cylinder 305 to the second middle plate 130a. Therefore, in the present invention, a pair of locking means is installed symmetrically on the moving head 300. The moving head 300 is prevented from being pushed backward when the main cylinder 305 operates.

Each locking means may include a locking cylinder 311, a locking block 312, and a guider 313, as shown in FIG. The locking cylinder 311 is installed on a bracket fixed to the back of the moving head 300 . The locking block 312 is fixed to the cylinder rod of the locking cylinder 311 and reciprocates between a locking position and an unlocking position when the locking cylinder 311 operates. The guider 313 is fixed to the back of the moving head 300 and guides the reciprocation of the locking block 312 .

When the moving head 300 is placed in the forward position, a locking groove (not shown) is formed in advance at a portion of the frame 110 facing the locking block 312. The locking block 312 moved to the locked position is inserted, so that the moving head 300 is not pushed backward even when the main cylinder 305 operates.

Meanwhile, it has been described that the moving head 300 is located at the rear of the second middle plate 130b, because the second dehydration module D2 is the most rearward dehydration module. Therefore, if a third dehydration module (not shown) is added to the rear of the second dehydration module D2, the moving head 300 is located behind the middle plate provided in the third dehydration module. The same applies to the case where the fourth dehydration module and the fifth dehydration module are added in the same way.

<Operation of multi-filter cloth circulation filter press (100)>

Hereinafter, the operation process of the multi-filter cloth circulation filter press 100 described above will be described.

First, in the state in which the filter plates 120a and 120b are opened, the cylinder 150 for the first middle plate operates to move the first middle plate 130a forward, and then the first filter plates 120a move forward The plates are closed while being sequentially pushed forward by , and the second filter plates 120b advance while being guided by the first middle plate 130a while maintaining the opened state. During this process, the moving head 300 also advances at a preset speed. And while the first middle plate 130a is closed, the first tension cylinder 224a raises the first lifting support 223a.

After the first filtering plates 120a are closed, the moving head 300 advances to a preset forward position. Then, the second middle plate 130a is pushed forward by the moving head 300, and the second filtering plates 120a move forward. ) is discontinued. While the second filter plates 120a are closed in this way, the hydraulic pressure of the main cylinder 305 is maintained constant, and the second tension cylinder 224b raises the second lifting support 223b.

The moving head 300 stops moving forward when it reaches the forward position, and when the moving head 300 stops, the locking block 312 is inserted into the locking groove of the frame 110 . Thereafter, the hydraulic pressure of the main cylinder 305 increases so that the main cylinder 305 strongly presses the second middle plate 130b, whereby the closed state of the filter plates 120a and 120b is reliably maintained.

After this process is completed, dehydration is performed by pushing the sludge into the first and second filtering chambers for a predetermined dehydration time. During dehydration, the filtrate is drained through the drain pipes 144a and 144b, and the sludge cake remains in the first and second chambers.

When the dehydration time ends, the hydraulic pressure of the main cylinder 305 is first decreased and maintained constant, and the locking block 312 is withdrawn from the locking groove of the frame 110 . After that, the moving head 300 moves backward, and then the second middle plate 130b also moves backward by the moving head 300, and the second filter plates 120b in the closed plate state open. The sludge cake in the ladies' room is free-falling. And while the second filtering plates 120b are opened, the second tension cylinder 224b lowers the second lifting support 223b.

After the second filter plates 120b are opened, the second drive roller 212b rotates to circulate the second filter fabrics 160b by a preset distance, and in this process, the second filter fabrics 160b used for dehydration The section of the second filter cloth 160b washed while passing through the second washing means and not used for dehydration is positioned between the second filter plates 120b. If the circulating second filter cloth 160b is meandering, the meandering of the second filter cloth 160b is corrected by the second meandering correction means.

When the washing of the second filter cloth 160b is completed, the cylinder 150 for the first middle plate reverses the first middle plate 130a and the moving head 300 moves backward, and then the second filter plates 120b are opened. At the same time as moving backward, the first filter plates 120a in a closed plate state are opened, and in this process, the sludge cake in the first chambers freely falls. And while the first filter plates 120a are opened, the first tension cylinder 224a lowers the first lift support 223a.

After the first filter plates 120a are opened, the first driving roller 212a rotates to circulate the first filter cloth 160a by a preset distance, and in this process, the first filter cloth 160a used for dehydration The section of the first filter cloth 160a washed while passing through the first washing means and not used for dehydration is located between the first filter plates 120. If the circulating first filter cloth 160a is meandering, the meandering of the first filter cloth 160a is corrected by the first meandering correction means.

Thereafter, the filter plates 120a and 120b are closed again and dehydration is performed by the method described above.

Meanwhile, unlike the above description, washing of the filter cloths 160a and 160b may be performed after both the first filtering plates 120a and the second filtering plates 120b are opened.

Also, unlike the above description, the opening and closing of the first filtering plates 120a and the opening and closing of the second filtering plates 120b may be alternately performed. In this case, in the initial state in which the first filter plates 120a are open and the second filter plates 120b are closed, the cylinder 150 for the first middle plate moves the first middle plate 130a backward. The first filtering plates 120a are closed and the second filtering plates 120b are opened. Thereafter, the moving head 300 advances and the second filtering plates 120b are also closed. When dehydration is completed, the moving head 300 moves backward, and at this time, the second filter plates 120b are opened. Thereafter, the cylinder 150 for the first middle plate reverses the first middle plate 130a and the moving head 300 maintains a stopped state, then the second filter plates 120b in the open state are closed and at the same time the plate is closed. The first filtering plates 120a of are opened.

As described above, when the opening and closing plates of the first filter plates 120a and the opening and closing plates of the second filter plates 120b are alternately formed, the length in the front and rear direction of the multi-filter cloth circulation filter press 100 is all the filter plates ( 120a, 120b) may be long enough to open the plates, but to the extent that the opening of the first filter plates 120a and the closing of the second filter plates 120b are made or the closing plates of the second filter plates 120a and the second filter plates It may be to the extent that the opening of (120b) is made.

<Modified example>

Previously, it has been described that the multifunctional carts 200a and 200b according to the present invention are installed in the multi-filter cloth circulation filter press 100 having a plurality of dehydration modules D1 and D2. However, the multi-function carts 200a and 200b according to the present invention can be applied to a single filter cloth circulation filter press having only one dewatering module, for example, a filter cloth circulation filter press without a second dehydration module D2 in the multi-filter cloth circulation filter press 100. can be installed In this case, the bogie frame may be provided to be fixed to the middle plate and move forward and backward together with the middle plate, similarly to the first bogie frame 202a, or may be provided to be separated from the middle plate and fixed to the frame 112.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those skilled in the art to which the present invention belongs It goes without saying that various modifications and variations can be made within the equivalent scope of the claims to be described, and the above-described embodiments can be combined in various ways.

100: multi-filter cloth circulation filter press D1, D2: dehydration module
110: frame 112: front plate
114: back plate 120a, 120b: filter plate
130a, 130b: middle plate 132a: sludge passage pipe
160a, 160b: filter cloth 170a, 170b: sludge supply member
172a, 172b: Front and rear through holes 174a, 174b: Left and right through holes
180a, 180b: connection link 182a, 182b: front part
183a, 183b: front long hole protrusion 184a, 184b: middle part
186a, 186b: rear part 187a, 187b: rear long hole protrusion
200a, 200b: multi-function truck 202a, 202b: truck frame
212a, 212b: drive roller 214a, 214b: drive motor
221a, 221b: fixed roller 222a, 222b: tension roller
223a, 223b: elevating support 224a, 224b: tension cylinder
232a, 232b: Housing 234a, 234b: Washing water spray pipe
241a, 241b: calibration roller 242a, 242b: rotary table
243a, 243b: bearing 244a, 244b: reciprocating block
245a, 245b: bracket 246a, 246b: pneumatic cylinder
300: moving head 301: rack
302: pinion 304: motor for pinion
305: main cylinder 311: lock cylinder
312: lock block

Claims (8)

Provided in a filter cloth circulation filter press including a plurality of filter plates installed to close and open plates through forward and backward movements in a frame constituting the overall frame, and filter cloths provided in a closed loop and circulating through each of the spaced spaces between the filter plates in an open state. As being
a bogie frame installed on the frame;
a driving roller installed on the bogie frame and circulating the filter cloth;
a drive motor installed on the bogie frame to drive the drive roller;
Tension maintenance means installed on the bogie frame to maintain constant tension of the filter cloth when the filter plates are opened and closed; and
Including; washing means installed on the bogie frame to wash the filter cloth,
The bogie frame is installed on the frame so that it can move forward and backward, and is fixed to a middle plate for pushing the filter plates forward to close the plates or pulling them backward to open the plates. bogie. According to claim 1,
The tension maintaining means,
A plurality of fixed rollers installed on the bogie frame so as to be arranged in the front and rear directions;
Elevation supports installed on the bogie frame to move up and down from the top of the fixed rollers;
A plurality of tension rollers installed on the elevating support so as to be arranged in the front and rear directions; and
A multifunctional cart of a filter cloth circulation filter press comprising a; tension cylinder installed on the bogie frame to elevate the elevating support. According to claim 2,
The tension cylinder raises the lifting support when the filter plates are closed, and lowers the lifting support when the filter plates are opened. According to claim 2,
The washing means,
a housing installed on the bogie frame and accommodating the fixing rollers therein; and
A multi-function cart of a filter cloth circulation filter press comprising a washing water injection pipe installed inside the housing to spray washing water to the filter cloth circulating around the fixed rollers and tension rollers. According to claim 1,
The multi-function cart of the filter cloth circulation filter press further comprising a meandering correction means installed on the bogie frame to be positioned between the driving roller and the tension maintaining means to correct meandering of the filter cloth. According to claim 5,
The meandering correction means,
Meander detection sensors installed on the bogie frame to be located on the left and right sides of the filter cloth;
A pair of correction rollers disposed parallel to each other at the rear of the meander detection sensors;
a rotary table arranged to support the left and right ends of the straightening rollers and to form a rear upward inclination that increases as it goes backward;
bearings provided to be rotatable about an axis perpendicular to the rotary tables and supporting the rotary tables;
a reciprocating block installed on the bogie frame to support the bearings and to reciprocate in the rearward inclined direction; and
A multifunctional cart of a filter cloth circulation filter press comprising: a pneumatic cylinder installed on the cart frame and reciprocating the reciprocating block according to the output of the meandering sensor. delete delete

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