CN103055557A - Pressure filtration dehydration device, and control apparatus and operation method thereof - Google Patents
Pressure filtration dehydration device, and control apparatus and operation method thereof Download PDFInfo
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- CN103055557A CN103055557A CN 201210399308 CN201210399308A CN103055557A CN 103055557 A CN103055557 A CN 103055557A CN 201210399308 CN201210399308 CN 201210399308 CN 201210399308 A CN201210399308 A CN 201210399308A CN 103055557 A CN103055557 A CN 103055557A
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Abstract
The invention relates to a pressure filtration dehydration device, and a control apparatus and an operation method thereof. The pressure filtration dehydration device comprises a plurality of filter plates (20) which are supported to be capable of moving between a pressure contact state and a separation state, a ring-shaped filter cloth (7) which is formed by joining two end portions of a strip-shaped base cloth by using a joint portion (7c), wherein a filter chamber can be formed by clamping the filter cloth with each filer plate in a pressure contact state and a supporting mechanism (10) for supporting the filter cloth to move forward seperatedly with each filter plate in the separation state; and a driving roll (6) for making the filter cloth supported by the supporting mechanism move forward. Besides, the pressure filtration dehydration device also comprises a position recognition unit for recognizing the position of the joint portion of the filter cloth supported by the supporting mechanism and a moving control portion for making the riving roll move so as to make filter cloth move forward in the separation state and stopping the filter cloth when the joint position recognized by the position recognition unit is away from the predetermined position. With the pressure filtration dehydration device, the filter cloth can be used effectively by adjusting the stopping position of the ring-shaped filter cloth.
Description
Technical field
The present invention relates to a kind of pressure filtering dehydration device control device, have the pressure filtering dehydration device of described control device and the operation method of described pressure filtering dehydration device, the control device of this pressure filtering dehydration device has: be supported to a plurality of filter plates that can move between crimped status and separated position; Form the filter cloth of ring-type, the both ends that the base cloth of this filter cloth forms band shape and base cloth engage with the junction surface; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting.
Background technology
In the past, working pressure filtering means dehydration device, to be used for carrying out Separation of Solid and Liquid in following various fields: the mud that produces in to water purification works or wastewater treatment plant dewaters and is separated into necessary solid-liquid separation process etc. in the manufacturing process of the Treatment of Sludge operation of filtrate and filter cake or carbon products, titanium products etc.
Fig. 6 (a) expression patent documentation 1 disclosed pressure filtering dehydration device 80 in the past.Pressure filtering dehydration device 80 constitutes: be equipped with a plurality of filter plates 84 that can slide in the pair of side frames 83 that is erected between front baffle 81 and the afterframe 82 between crimped status and separated position, along with the action that enters that is configured in hydraulic cylinder 86 on the front baffle 81, each filter plate 84 just is moved into by the crimped status to the pushing of afterframe 82 directions by the push part 85 that is connected with this hydraulic cylinder 86, along with the backward movement of this hydraulic cylinder 86, each filter plate 84 just is moved into separated position separated from each other.
It is relative that supporting device 87 tensioning frames that ring-type filter cloth 88 is had by filter plate 84 are set as filtering surface, under crimped status, by being formed the filter chamber by the filter cloth 88 of each filter plate 84 clamping.Stoste is being supplied under the state of filter chamber, is expanding by making the diaphragm that filter plate 84 has, thus squeezing stoste and carry out Separation of Solid and Liquid, and when each filter plate 84 was moved into separated position after the squeezing, dewatered cake was from the filter cloth 88 under the exfoliation.
Between former frame frame 81 and the afterframe 82, set up upper frame 89 at the superjacent air space of each filter plate 84, be provided with at this upper frame 89: the driven roller 90 that filter cloth 88 is advanced; The wiper mechanism 91 that the filter cloth 88 of being rolled by driven roller 90 is cleaned; Filter cloth 88 after cleaning is given the strainer 92 of regulation tension force; And the correction mechanism 93 that crawls that the width advanced positions of the filter cloth 88 that is tensioned is limited, and constitute the filter cloth 88 that makes after the cleaning and again advance to filter plate 84 circulations.
The filter cloth of this ring-type is that the two ends of will form banded base cloth engage and form.
Shown in Fig. 6 (b), patent documentation 2 discloses a kind of utilization 95a that reaches the standard grade to be connected industrial sewing machines and the two ends of filter cloth 94 to be sewed up the method that connects the filter cloth form ring-type with bottom line 95b.
Patent documentation 1: Japanese kokai publication hei 5-15710 communique
Patent documentation 2: No. 293094 communique of Japan's special permission
Invent problem to be solved
But, pressure filtering dehydration device in the past constitutes after filter cloth is advanced, when through only by time of the predefined times such as timer, the degree that for example can be cleaned a circle of filter cloth, then making advances stops, it is not especially the junction surface of filter cloth to be identified to control the structure of its stop position, so following problem is arranged.
Because the junction surface of filter cloth is that the structure that forms is sewed up at the two ends of the base cloth of band shape, so relatively poor than the permeability of other face filtrate of filter cloth.So, when the junction surface stops, existing the kind problem in the filter efficiency decline of junction surface squeezing object between filter plate.
In addition, pressure filtering dehydration device applies hundreds of tons pressure to the electrolysis of each filter plate under the crimped status of each filter plate.
The two ends of filter cloth are being sewed up the junction that is formed by connecting under the state between filter plate, when each filter plate becomes crimped status, then owing to be subject to strong pressure by the filter cloth of the electrolysis clamping of adjacent filter plate, so might the junction surface produce distortion and occur that stoste is leaked or the junction surface produces damaged.In addition, when the thickness of the Thickness Ratio filter cloth at junction surface is thick, then might filter plate if between filter plate, carry out crimping, diaphragm produces distortion or damaged.
In addition, owing to be not the structure of the stop position of control filter cloth, so produced the higher position of usage frequency in the circle of filter cloth of ring-type and lower position, existed and produce easily at the higher position of usage frequency that mesh stops up or produce easily distortion, damaged problem.
Summary of the invention
The object of the invention is to, thereby provide a kind of stop position that sees through the filter cloth of adjusting ring-type can effectively use the operation method of control device, pressure filtering dehydration device and the pressure filtering dehydration device of the pressure filtering dehydration device of filter cloth.
Be used for solving the means of problem
To achieve these goals, the first technical scheme of the control device of pressure filtering dehydration device of the present invention is that this pressure filtering dehydration device has: be supported to a plurality of filter plates that can move between crimped status and separated position; The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And making the driving mechanism of being advanced by the described filter cloth of described supporting device supporting, the control device of this pressure filtering dehydration device has: the location recognition section that the position at the described junction surface in the described filter cloth is identified; And under described separated position, make the action of described driving mechanism and described filter cloth is advanced, the control part of advancing that when by the assigned position beyond the described junction surface of described location recognition section identification is between described filter plate, described filter cloth is stopped.
The control part of advancing makes the driving mechanism action that filter cloth is advanced when each filter plate is separated position, and dewatered cake is broken away between each filter plate.Then, when filter cloth is stopped, owing to by the assigned position beyond the position at the junction surface of the filter cloth of location recognition section identification is between described filter plate the time, described filter cloth is stopped, so can prevent from being sandwiched between each filter plate at described junction surface under the crimped status of each filter plate.
Thus, owing to can not produce the situation of being filtered by the poor junction surface of filtrate permeability, descend so can prevent filter efficiency.
Because described junction surface can by the electrolysis clamping of adjacent filter plate, not produce stoste leakage or junction surface and produce the anxiety of breakage so can avoid the junction surface to produce distortion.In addition, can avoid filter plate, diaphragm to produce the anxiety of distortion or breakage.
Its second technical scheme is, except the first above-mentioned technical scheme structure, the described control part of advancing is controlled to the stop position of described filter cloth variable, with use equably in the described filter cloth under described crimped status by the zone of described filter plate clamping.
Be controlled to by the stop position with filter cloth variable, use equably in the filter cloth under crimped status by the zone of filter plate clamping, thereby compare with the situation that the use part of filter cloth is comparatively concentrated, can life-saving.
Its 3rd technical scheme is, except the first or second above-mentioned technical scheme structure, described location recognition section is made of sensor, and this sensor detects preseting with the relative position at described junction surface and marking in the mark of described filter cloth.
By filter cloth mark being preseted the mark with the relative position at junction surface, by sensor described mark is detected, thereby can identify the position at described junction surface.
Its 4th technical scheme is, except the 3rd above-mentioned technical scheme structure, this pressure filtering dehydration device has on the travel path that is configured in described filter cloth, to the wiper mechanism that described filter cloth cleans, described location recognition section is arranged on the downstream of described wiper mechanism.
By filter cloth mark being preseted the mark with the relative position at junction surface, by sensor described mark is detected, thereby can identify the position at described junction surface.Because in the downstream of the wiper mechanism that filter cloth is cleaned, mark is cleaned mechanism and cleans as the sensor setting of location recognition section, so sensor certification mark reliably.
Its 5th technical scheme is that this pressure filtering dehydration device has: be supported to a plurality of filter plates that can move between crimped status and separated position; Form the filter cloth of ring-type; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting, and the control device of this pressure filtering dehydration device has: location recognition section, and this location recognition section identifies the ad-hoc location in the described filter cloth; And the control part of advancing, this control part of advancing makes described driving mechanism action and described filter cloth is advanced under described separated position, and take variable as benchmark is controlled to the stop position of described filter cloth by the described ad-hoc location of described location recognition section identification, to use equably the zone by described filter plate clamping in the described filter cloth under described crimped status.
According to said structure, by location recognition section the ad-hoc location in the filter cloth is identified, when filter cloth being advanced under the separated position at described each filter plate, be controlled to take this ad-hoc location as benchmark the stop position of filter cloth variable, with use equably in the filter cloth under crimped status by the zone of filter plate clamping, thus, compare with the situation that the use part of filter cloth is comparatively concentrated, can life-saving.
Its 6th technical scheme is, except above-mentioned first in the 5th any technical scheme structure, the described control part of advancing constitutes, when described filter cloth is advanced, the slippage of described filter cloth is measured, according to described slippage the stop position with described filter cloth is controlled to variable controlling value and revises.
Elongation or slip occur when even filter cloth is advanced, the amount of feeding that produces with respect to driving mechanism produces dislocation, control part slippage to filter cloth when filter cloth is advanced is measured owing to advance, revise according to described slippage, so that the assigned position of described junction surface beyond stopping between described filter plate, so also can avoid reliably described junction surface to stop between described filter plate.
The technical scheme of pressure filtering dehydration device of the present invention is to have: be supported to a plurality of filter plates that can move between crimped status and separated position; The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting; And the claims 1 each described control device to the claim 6.
According to said structure, by the stop position of adjustment ring-type filter cloth, thereby can effectively use filter cloth.
The first technical scheme of the operation method of pressure filtering dehydration device of the present invention is that this pressure filtering dehydration device has: be supported to a plurality of filter plates that can move between crimped status and separated position; The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And making the driving mechanism of being advanced by the described filter cloth of described supporting device supporting, the operation method of this pressure filtering dehydration device has: make described driving mechanism action and the step of advancing that described filter cloth is advanced under described separated position; The location recognition step that the position at the described junction surface in the described filter cloth is identified; And when by the assigned position beyond the described junction surface of described location recognition step identification is between described filter plate, make the step that stops that described filter cloth stops.
The second technical scheme of the operation method of pressure filtering dehydration device of the present invention is that this pressure filtering dehydration device has: be supported to a plurality of filter plates that can move between crimped status and separated position; Form the filter cloth of ring-type; Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And making the driving mechanism of being advanced by the described filter cloth of described supporting device supporting, the operation method of this pressure filtering dehydration device has: make described driving mechanism action and the step of advancing that described filter cloth is advanced under described separated position; The location recognition step that ad-hoc location in the described filter cloth is identified; And take by the described ad-hoc location of described location recognition step identification as benchmark with the stop position of described filter cloth be controlled to variable, with use equably in the described filter cloth under described crimped status by the step that stops in the zone of described filter plate clamping.
The effect of invention
As described above, adopt the present invention, a kind of stop position of the filter cloth by adjusting ring-type can be provided and the operation method of control device, pressure filtering dehydration device and the pressure filtering dehydration device of the pressure filtering dehydration device of filter cloth can be effectively use.
Description of drawings
Fig. 1 is the skeleton diagram of pressure filtering dehydration device of the present invention.
Fig. 2 is the skeleton diagram of pressure filtering dehydration device of the present invention.
Fig. 3 is the key diagram of the connecting portion of filter cloth.
Fig. 4 is the skeleton diagram of the control device of pressure filtering dehydration device of the present invention.
Fig. 5 is the skeleton diagram of the replacing of explanation filter cloth.
Fig. 6 is the key diagram of pressure filtering dehydration device in the past, and Fig. 6 (a) is skeleton diagram, and Fig. 6 (b) is the key diagram of filter cloth.
Symbol description:
1: pressure filtering dehydration device
2: front baffle
3: afterframe
4: body side frame
5: driving and reversing mechanism
6: driven roller
7: filter cloth
7a, 7b: end
7c: junction surface
7g: mark
8: wiper mechanism
9: strainer
10: supporting device
20: filter plate
30: control device
34: location recognition section
35: the control part of advancing
The specific embodiment
Below, the operation method of control device, pressure filtering dehydration device and the pressure filtering dehydration device of pressure filtering dehydration device of the present invention is described.
As shown in Figures 1 and 2, pressure filtering dehydration device 1 has: front baffle 2; Afterframe 3; Be erected at the pair of side frames 4 between front baffle 2 and the afterframe 3.
At body side frame 4 upper supports slidably a plurality of filter plates 20 are arranged, each filter plate 20 constitutes, and each filter plate 20 utilizes and is arranged on the driving and reversing mechanism 5 on the front baffle 2 and is moved into a certain state in separated position shown in Figure 1 and these two states of crimped status shown in Figure 2.
In front and the rear side of each filter plate 20, be equipped with up and down a pair of engagement pin 11, connected by linkage 12 between the engagement pin 11 of adjacent a pair of filter plate 20, this linkage 12 is fastened on the slotted hole that is formed at connector.And the filter plate 20 of left end is connected with afterframe 3, and the filter plate 20 of right-hand member is connected with driving and reversing mechanism 5.
Driving and reversing mechanism 5 is made of the hydraulic cylinder 5c that the top of bar 5a has push part 5b.When utilizing hydraulic cylinder 5c to make bar 5a enter action, each filter plate 20 is moved into by the crimped status to afterframe 3 pushings by push part 5b, when making bar 5a make backward movement, each filter plate 20 moves to front baffle 2, and be moved into separated separated position, and the serve as reasons distance of the slotted hole defined that is formed at connector of separated distance.
The top of former frame frame 2 disposes the driven roller 6 that the filter cloth 7 that forms ring-type is sent, and disposes the wiper mechanism 8 that filter cloth 7 is cleaned on the top of afterframe 3.
The filter cloth 7 of being sent by driven roller 6 utilizes the strainer 9 that is arranged on the front baffle 2 and after being adjusted to regulation tension force same, its utilization can be located on each filter plate 20 supporting device 10 and by to be hung into filtering surface relative, under described separated position, filter cloth 7 is supported to and can advances dividually with each filter plate 20, and be configured to after sending from each filter plate 20, be directed into wiper mechanism 8.
In order stably to carry filter cloth 7 by driven roller 6, must be at the enough tension force of the front and back of driven roller 6 effect, but adopt above-mentioned structure, in the downstream for the less driven roller 6 of the tension force of filter cloth 7, mechanism 9 is adjusted to suitable value because the tension force of filter cloth is tensioned, so filter cloth 7 is stably driven by driven roller 6, and to filter plate 20 conveyings that are arranged on its downstream.
Supporting device 10 has: by lower support roller 10a and the upper support roller 10b that the carriage that is fixed on filter plate 20 supports, filter cloth 7 utilize two roller 10a, 10b along the vertical direction tensioning be arranged on 20 of adjacent filter plates.
Have guide roller 10c near upper roll 10b, this guide roller 10c leads so that filter cloth 7 does not contact with filter plate 20 and diaphragm 21 when filter plate 20 is separated position.
For each filter plate 20, on a face, along orientation diaphragm 21 is installed.When filter plate 20 utilized driving and reversing mechanism 5 and is moved into crimped status, the space that is separated at the back side by this diaphragm 21 and adjacent filter plate 20 formed filter chamber.At this moment, the space that is separated into by filter cloth 7 in filter chamber becomes the filter chamber.
Between each filter plate 20, be provided with pipe box 13, under crimped status, utilize pipe box 13 to be communicated with the through hole that is formed through along the thickness direction of each filter plate 20.And, under crimped status, process object and supply to this through hole from the supply port that is located on the afterframe 3, process object by the bifurcated path that is formed at pipe box 13 filling in each filter chamber.
Under the crimped status of each filter plate 20, supply with pressure (hydraulic) water by the pressure (hydraulic) water stream from the below that is arranged on each filter plate 20, the diaphragm 21 that is installed in filter plate 20 is expanded to the filter chamber side, object is processed in squeezing thus.
After processed, carried out under the separated position of backward movement at driving and reversing mechanism 5, carry out and to utilize driven roller 6 to make the advance processing of advancing of predetermined distance of filter cloth 7, so that dewatered cake breaks away from filter cloth 7, then, driving and reversing mechanism 5 enters action, repeats same processing.In addition, driven roller 6 drives by reducing gear and with drive motor and is connected, and driving mechanism is made of driven roller 6, reducing gear and drive motor.
The filter cloth 7 of sending from the filter element 20 of afterbody is hung on the driven roller 6 via crawling correction mechanism 15 after being cleaned by the wiper mechanism 8 that is arranged on afterframe 3.
The correction mechanism 15 that crawls is arranged on the upper frame 14 on the top that is installed on front baffle 2, according to the signal from the sensor that crawling of filter cloth 7 detected (not shown), the width advanced positions of filter cloth 7 is revised.
Has filter cloth replacing mechanism 16 at upper frame 14.One example of filter cloth replacing mechanism 16 is explained in the back.
As shown in Figure 3, the both ends 7a, the 7b that form the banded resinous base cloths such as polypropylene of filter cloth 7 engage by junction surface 7c, thereby filter cloth 7 forms ring-type.
For filter cloth 7, at the position mark mark 7g that has preseted with the relative position of junction surface 7c.Mark 7g for example is made of thin metallic plate, and this mark 7g is incorporated in the bag on the surface that is formed at filter cloth 7.
For pressure filtering dehydration device 1, on the travel path of filter cloth 7, has sensor at the position of detectable label 7g.Sensor uses contactless sensor, the Proximity Sensor of for example capacitance-type to get final product, and it is better that setting position is provided in a side of the downstream of wiper mechanism 8, and certification mark 7g is to clean filter cloth 7 totally reliably.
In addition, about the used thin metallic plate of mark 7g, by adopting the metal different metal contained from squeezing object, can prevent thus the error detection of sensor.For example, when the squeezing object contained the composition of iron, mark used aluminium to get final product.
Fig. 4 represents the summary of the control device 30 of pressure filtering dehydration device 1.
Control device 30 has such as lower member etc. so that pressure filtering dehydration device 1 moves: advance and retreat control part 31, its control driving and reversing mechanism 5 and switch crimped status and the separated position of each filter plate 20; Supply control part 32, it drives, stops control to the supply pump that the squeezing object is supplied with to the filter chamber under the crimped status of each filter plate 20; Pressurized control section 33, its supply pump to pressure (hydraulic) water drives, stops control, and this pressure (hydraulic) water makes diaphragm 21 expand that to the filter chamber side squeezing object is squeezed; Location recognition section 34, it is identified the junction surface 7c as an example of ad-hoc location in the filter cloth 7; The control part 35 of advancing, it makes driven roller 6 actions and filter cloth 7 is advanced under described separated position; Strainer control part 36, its position to the mobile roller of strainer 9 is controlled, to give the tension force of filter cloth 7 regulations when filter cloth 7 is advanced; Cleaning control section 37, its supply pump to the rinse water of wiper mechanism 8 drives, stops control; And the Correction and Control section 38 of crawling, it utilizes the correction of crawling of the correction mechanism 15 control filter clothes 7 that crawl according to the detecting sensor of crawling that crawling of filter cloth 7 detected.In addition, each control part etc. is made of timer or microcomputer.
State in detail location recognition section 34 and the control part 35 of advancing.
Because know in advance the mark 7g that is arranged on the filter cloth 7 and the relative position of junction surface 7c, therefore, the described Proximity Sensor of location recognition section 34 usefulness detects the mark 7g that is labeled on the filter cloth 7, can identify thus the position of junction surface 7c.
When the position of identification part, the middle position 34 identification junction surface 7c that advance at filter cloth 7, the 35 pairs of driven rollers 6 of control part of advancing stop control, are in positions beyond 20 of each filter plates to make junction surface 7c when the crimped status of each filter plate 20.
The control part 35 of advancing has timer, when the position of junction surface 7c is identified by location recognition section 34, timer begins counting, through the regular hour so that when each filter plate 20 during for crimped status junction surface 7c be in positions beyond 20 of each filter plates, afterwards driven roller 6 is stopped to control and gets final product.
The control part of advancing makes during for separated position driven roller 6 actions that filter cloth 7 is advanced at each filter plate 20, make dewatered cake break away from 20 of each filter cakes, then when making filter cloth 7 stop to advance, owing to be the assigned position beyond 20 of the filter plates and filter cloth 7 stopped by the position of the junction surface 7c of the filter cloth 7 of location recognition section 34 identification, therefore, can prevent that junction surface 7c is sandwiched in 20 of each filter plates under the crimped status of each filter plate 20.
Thus, owing to can not produce the situation of being filtered by junction surface 7c, descend so can prevent filter efficiency.
Because stoste leakage or junction surface 7c can by the electrolysis clamping of adjacent filter plate 20, not occur and produce the anxiety of breakage in junction surface 7c so can avoid junction surface 7c to produce distortion.In addition, can avoid filter plate 20, diaphragm 21 to produce the anxiety of distortion or breakage.
In addition, the control part 35 of advancing can also be take variable as benchmark is controlled to the stop position of filter cloth 7 by the position of the junction surface 7c of described location recognition section 34 identifications, with the zone of the described filter chamber of formation that uses equably filter cloth 7.
Be controlled to variable by the stop position with filter cloth 7, the employed part of filtration of the filter cloth 7 in the junction surface 7c that staggers thus zone in addition, impartial zone of using the formation filter chamber of filter cloth 7, therefore, compare with the situation that the part of the use of filter cloth is comparatively concentrated, can prolong the life-span of filter cloth.
The rotation of the roller that roller, the stationary roll of for example strainer 9, mobile roller, other wiper mechanism 8 that drives with the power of drive motor unlike driven roller 6 and rotate along with advancing of filter cloth 7 is had with the such sensor of rotary encoder detects, compare with the rotating speed of driven roller 6, can measure thus the slippage that produces when filter cloth 7 is advanced.
Even elongation or slip occur in filter cloth 7 when advancing, the amount of feeding that produces with respect to driven roller 6 produces dislocation, the control part 35 of advancing also can be measured the slippage of filter cloth 7 when filter cloth 7 is advanced, revise so that junction surface 7c stops at 20 assigned positions in addition of filter plate according to described slippage, therefore, can avoid reliably junction surface 7c to stop between described filter plate.
Utilize pressure filtering dehydration device 1 and the control device 30 of aforesaid structure to carry out the operation method with following steps: to the location recognition step of being identified by the position of the junction surface 7c in the filter cloth 7 of supporting device 10 supportings; The step of advancing that under the separated position of each filter plate 20, makes driven roller 6 actions and filter cloth 7 is advanced; And when by assigned position beyond 20 of filter plates of the junction surface 7c of described location recognition step identification, make the step that stops that filter cloth 7 stops.
In addition, the operation method of pressure filtering dehydration device also can comprise: to the location recognition step of being identified by the ad-hoc location in the filter cloth of supporting device 10 supportings; The step of advancing that under the separated position of each filter plate 20, makes driven roller 6 actions and filter cloth 7 is advanced; And for equalization use the described filter chamber of formation in the filter cloth 7 the zone, with the stop position of filter cloth 7 be controlled to by the described ad-hoc location of described location recognition step identification as benchmark variable stop step.
As shown in Figure 5, filter cloth replacing mechanism 16 for example has: the take up roll 16a that the filter cloth 7 that uses is reeled; And the outlet roller 16b that sends new filter cloth 17.Take up roll 16a constitutes, the coiling filter cloth by not shown Motor Drive.
The replacing operation of filter cloth 7 is, the joint of the junction surface 7c of cancellation filter cloth 7, the most front end 7a on the direct of travel in the both ends is connected on the take up roll 16a, with the most front engaged at end on the direct of travel in the both ends of the end 7b of the rearmost end on the direct of travel and the new filter cloth 17 that is positioned over outlet roller 16b.
Under this state, when take up roll 16a and driven roller 6 are driven, along with the coiling of the filter cloth 7 that uses, make new filter cloth 17 through the supporting device 10 of driven roller 6, strainer 9, filter cloth, and wiper mechanism and advance to filter cloth replacing mechanism 16.In the time of near the most front end arrival filter cloth replacing mechanism 16 on the direct of travel of new filter cloth 17, the joint cancellation of the filter cloth 7 that uses and new filter cloth 17, with on the direct of travel of new filter cloth 17 before end and last end engaged and become the filter cloth 17 of ring-type.
Adopt the present invention, owing to do not exist the junction surface 7c of the filter cloth 7 that uses to deform or the anxiety of breakage, so can easily connect new filter cloth, easily change operation.
In the above-described embodiments, be the example of thin aluminum sheet although understand mark, but sensor is so long as can get final product with the sensor that thing differentiates to detect that contains of squeezing object.
In addition, Proximity Sensor is not limited to capacitance-type, can also use the known sensor such as Proximity Sensor, optical sensor of induction type, magnetism type.
In the above-described embodiment, that the structure of the junction surface 7c of filter cloth is described to the ad-hoc location in the filter cloth 7, but ad-hoc location is not limited to the situation of the junction surface 7c of filter cloth, in addition, when filter cloth 7c goes up without junction surface 7c, preset any particular location in the filter cloth, advance control part take this ad-hoc location as benchmark, be controlled to the stop position of filter cloth variable, use equably thus the zone of the formation filter chamber in the filter cloth, therefore, the situation that is recycled and reused for filtration with same area with filter cloth is compared, can life-saving.
In addition, also can constitute, location recognition section 34 has: the storage unit that stores in advance the position of junction surface 7c; And the measurement section 40 of the travel distance of filter cloth 7 being measured according to diameter and the rotating speed of driven roller 6, and this location recognition section 34 is identified the position of junction surface 7c by the position of the stored junction surface 7c of described storage unit according to the travel distance of the measured filter cloth 7 of measurement section.
Because location recognition section 34 is identified the position of junction surface 7c by the position of the stored junction surface 7c of described storage unit according to the travel distance of the measured filter cloth 7 of described measurement section, therefore, also can not detect junction surface 7c itself or set the mark that arranges with the relative position of junction surface 7c.Owing to the mark 7g that is located on the filter cloth 7 and the Proximity Sensor of certification mark 7g needn't be set, so can reduce the cost of this part.
Above-mentioned embodiment all is an example of the present invention, and the present invention also can't help this record and limits, and the concrete structure of each several part can obtain in the scope of action effect of the present invention, can do suitably change design, and this is self-evident.
Claims (10)
1. the control device of a pressure filtering dehydration device, this pressure filtering dehydration device has:
Be supported to a plurality of filter plates that can between crimped status and separated position, move;
The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint;
Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And
Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting,
The control device of this pressure filtering dehydration device is characterised in that to have:
The location recognition section that the position at the described junction surface in the described filter cloth is identified; And
Under described separated position, make the action of described driving mechanism and described filter cloth is advanced, the control part of advancing that when by the assigned position beyond the described junction surface of described location recognition section identification is between described filter plate, described filter cloth is stopped.
2. the control device of pressure filtering dehydration device as claimed in claim 1, it is characterized in that, the described control part of advancing is controlled to the stop position of described filter cloth variable, with use equably in the described filter cloth under described crimped status by the zone of described filter plate clamping.
3. the control device of pressure filtering dehydration device as claimed in claim 1 or 2, it is characterized in that, described location recognition section is made of sensor, this sensor detects the position that relative position described and described junction surface is the regulation take described junction surface as benchmark to preseting with the relative position at described junction surface and marking in the mark of described filter cloth.
4. the control device of pressure filtering dehydration device as claimed in claim 3 is characterized in that, the wiper mechanism that this pressure filtering dehydration device has on the travel path that is configured in described filter cloth, clean described filter cloth,
Described location recognition section is arranged on the downstream of described wiper mechanism.
5. the control device of pressure filtering dehydration device as claimed in claim 1 or 2, it is characterized in that, the described control part of advancing constitutes, when described filter cloth is advanced, the slippage of described filter cloth is measured, according to described slippage the stop position with described filter cloth is controlled to variable controlling value and revises.
6. the control device of a pressure filtering dehydration device, this pressure filtering dehydration device has:
Be supported to a plurality of filter plates that can between crimped status and separated position, move;
Form the filter cloth of ring-type;
Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And
Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting,
The control device of this pressure filtering dehydration device is characterised in that to have:
Location recognition section, this location recognition section identifies the ad-hoc location in the described filter cloth; And
The control part of advancing, this control part of advancing makes described driving mechanism action and described filter cloth is advanced under described separated position, and take variable as benchmark is controlled to the stop position of described filter cloth by the described ad-hoc location of described location recognition section identification, to use equably the zone by described filter plate clamping in the described filter cloth under described crimped status.
7. the control device of pressure filtering dehydration device as claimed in claim 6, it is characterized in that, the described control part of advancing constitutes, when described filter cloth is advanced, the slippage of described filter cloth is measured, according to described slippage the stop position with described filter cloth is controlled to variable controlling value and revises.
8. pressure filtering dehydration device is characterized in that having:
Be supported to a plurality of filter plates that can between crimped status and separated position, move;
The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint;
Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate;
Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting; And
The claims 1 each described control device to the claim 7.
9. the operation method of a pressure filtering dehydration device, this pressure filtering dehydration device has:
Be supported to a plurality of filter plates that can between crimped status and separated position, move;
The both ends that form banded base cloth form the filter cloth of ring-type with the junction surface joint;
Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And
Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting,
The operation method of this pressure filtering dehydration device is characterised in that to have:
The step of advancing that under described separated position, makes described driving mechanism action and described filter cloth is advanced;
The location recognition step that the position at the described junction surface in the described filter cloth is identified; And
When by the assigned position beyond the described junction surface of described location recognition step identification is between described filter plate, make the step that stops that described filter cloth stops.
10. the operation method of a pressure filtering dehydration device, this pressure filtering dehydration device has:
Be supported to a plurality of filter plates that can between crimped status and separated position, move;
Form the filter cloth of ring-type;
Under described separated position, described filter cloth is supported to the supporting device that to advance dividually with each filter plate; And
Make the driving mechanism of being advanced by the described filter cloth of described supporting device supporting,
The operation method of this pressure filtering dehydration device is characterised in that to have:
The step of advancing that under described separated position, makes described driving mechanism action and described filter cloth is advanced;
The location recognition step that ad-hoc location in the described filter cloth is identified; And
Take by the described ad-hoc location of described location recognition step identification as benchmark with the stop position of described filter cloth be controlled to variable, with use equably in the described filter cloth under described crimped status by the step that stops in the zone of described filter plate clamping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-230725 | 2011-10-20 | ||
| JP2011230725A JP5809923B2 (en) | 2011-10-20 | 2011-10-20 | Control device for filter press dewatering device, filter press dewatering device, and operation method of filter press dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103055557A true CN103055557A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210399308 Pending CN103055557A (en) | 2011-10-20 | 2012-10-18 | Pressure filtration dehydration device, and control apparatus and operation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5809923B2 (en) |
| CN (1) | CN103055557A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101533647B1 (en) * | 2013-10-24 | 2015-07-08 | 김영수 | Multi-stage type automated filter press having function of ultrasonic cleaning |
| CN113856320B (en) * | 2021-10-21 | 2022-12-27 | 龙滩水电开发有限公司合山发电公司 | Desulfurization slurry filtering method and structure |
| CN113856269B (en) * | 2021-12-03 | 2022-12-09 | 宁波世茂能源股份有限公司 | Chemical water treatment equipment |
| KR102519150B1 (en) * | 2022-06-03 | 2023-04-06 | (주)동일캔바스엔지니어링 | Muti-fuctional loader of filter press with circulation type filter cloth |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4726440Y1 (en) * | 1970-03-30 | 1972-08-15 | ||
| JPS5417456B2 (en) * | 1974-11-26 | 1979-06-29 | ||
| JPS5542806Y2 (en) * | 1976-01-12 | 1980-10-07 | ||
| JPS5365071U (en) * | 1976-11-05 | 1978-06-01 | ||
| JPS61169197A (en) * | 1985-01-19 | 1986-07-30 | Ishigaki Kiko Kk | Connecting equipment of filter cloth or the like |
| JPH0630247Y2 (en) * | 1989-12-25 | 1994-08-17 | 日本碍子株式会社 | Filter cloth joint for pressure dehydrator |
| JP2930294B1 (en) * | 1998-02-27 | 1999-08-03 | 日本碍子株式会社 | How to connect the filter cloth end |
-
2011
- 2011-10-20 JP JP2011230725A patent/JP5809923B2/en active Active
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| Publication number | Publication date |
|---|---|
| JP5809923B2 (en) | 2015-11-11 |
| JP2013086051A (en) | 2013-05-13 |
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Application publication date: 20130424 |