KR102465949B1 - Rotary screen device with floating rake part - Google Patents

Abstract

A purpose of the present invention is to provide a rotary screen device provided with a floating rake unit that reciprocates by a cam motion on the inlet side so as to more effectively remove impurities contained in livestock manure or wastewater. That is, the present invention comprises: an impurity feeding unit (10) equipped with a transfer hopper (12) to supply impurities introduced through a transfer pipe (11) in an unfolded state; a disk screen unit (20) in which a filtration passage (23) is formed by arranging a plurality of ring disks (22) spaced apart to rotate around a main shaft (21) on an extension line of the transfer hopper (12) to turn and transfer impurities and to separate the filtrate contained in the impurities; and a front flow rake unit (30) installed between the disk screen unit (20) and the transfer hopper, wherein while one end is accommodated between the ring disks (22) and rotates about a first hinge (31), impurities flowing into the filtering passage (23) are filtered and discharged. If the rotary screen device equipped with a floating rake unit is used, impurities adsorbed and remaining on the outer circumferential surface of a disk screen unit can be effectively separated and removed due to the turning operation of the floating rake unit.

Description

Rotary screen device with floating rake part {Rotary screen device with floating rake part}

The present invention is a rotary screen device equipped with a floating rake unit, and to explain this in more detail, a floating rake unit provided with a reciprocating motion by a cam movement on the inlet side so as to more effectively remove impurities contained in livestock manure or wastewater. It relates to a rotary screen device.

In general, in sewage treatment plants and manure treatment plants, various contaminants (including suspended matter) contained in livestock, livestock manure, manure, sewage, sewage, wastewater (hereinafter referred to as 'wastewater') are first separated and purified. Although the efficiency of water treatment is increased, as the concentration of impurities increases, it takes a lot of time and money to treat impurities with existing equipment.

Accordingly, in Patent Registration No. 10-1629954 disclosed in the prior art, a first processing unit for separating bulky impurities (more than 6 mm impurities); A horizontal cyclone-type second treatment unit for separating sludge wastewater containing sand with a specific gravity of 6 mm or less from the wastewater discharged from the first treatment unit; a third treatment unit composed of a centrifugal dehydrator that treats the sludge wastewater separated in the second treatment unit; and a fourth processing unit of a wedge bar screen type that processes fine impurities of 6 mm or less in the wastewater discharged from the second processing unit and the third processing unit. a shut-off valve installed in the discharge pipe installed at the bottom of the treatment tank of the fourth treatment unit and electrically opened and closed; a wastewater inflow detection sensor installed in the wastewater supply pipe coupled to supply wastewater to the first treatment unit and detecting the inflow of wastewater; A wastewater discharge detection sensor installed in front of the shutoff valve to detect discharge of wastewater; a sensor for detecting impurities installed above the screw press constituting the first processing unit; a controller electrically connected to and controlling the shutoff valve, a sensor for detecting the inflow of wastewater, a sensor for detecting wastewater discharge, and a sensor for detecting impurities; A warning light and a speaker installed in the controller to operate according to the signal detection of the sensor for detecting the impurity; Including techniques have been previously suggested.

In addition, in Patent Registration No. 10-2004507, which is another prior art, a supply chamber provided with a horizontal long hole to supply a fixed amount while temporarily storing wastewater introduced into a supply pipe; a bottom screen having a plurality of perforated holes for primary dehydration of water contained in wastewater supplied through the horizontal long holes; a disk module rotated above the bottom screen and equipped with a plurality of cutting disks to shred impurities contained in wastewater; a rotary screen provided to drop and discharge contaminants that have passed through the disk module to the opposite side by a rotational motion while contacting the outer circumferential surface for secondary dehydration; a rotary scraper that rotates in the opposite direction to the rotary screen and is provided with a plurality of scraper blades to remove impurities attached to the outer circumferential surface of the rotary screen; and a water collecting hopper provided to collect the dewatered liquid dewatered in the bottom screen and the rotary screen; a technology including a bar has been registered in advance.

However, the prior art is for efficiently separating the impurities contained in the wastewater, but the impurities are easily passed between the rotary screens after colliding with the rotary screen due to the flow rate of the wastewater pumped up by the pump, thereby collecting the filtrate. There was a problem that the hopper (flow tank) contained a large amount of impurities, and the impurities had to be filtered again in a later process.

KR 10-1629954 B1 (2016.06.14.) KR 10-2004507 B1 (2019.07.26.)

In the present invention, a new technology has been invented to solve the problems of the prior art, and it is installed in the sewage inlet of the wastewater treatment machine to separate the coarse impurities contained in livestock manure or wastewater by strong pressure and flow rate by the pump. In order to overcome the problem that has not been solved, a rotary screen device equipped with a flow rake portion that can effectively separate impurities in sewage while attenuating water impact is provided by forming a front flow rake portion that flows back and forth at a predetermined angle in front of the disk screen portion. Its purpose is to do

As a specific means for solving the above problems of the present invention, in the present invention, a rotary screen device equipped with a floating rake unit is configured, but the transfer hopper 12 is provided to supply the impurities introduced through the transfer pipe 11 in an unfolded state Impurity feeding unit 10 to be; On the extension line of the transfer hopper 12, a plurality of ring disks 22 are spaced apart to form a filtration passage 23 so as to rotate around the main shaft 21 to turn and transfer impurities and to separate the filtrate contained in the impurities. a disk screen unit 20; And it is installed between the disk screen unit 20 and the transfer hopper, and while one end is moved around the first hinge 31 in a state accommodated between the ring disks 22, impurities flowing into the filtering passage 23 It is characterized in that it includes; front flow rake part 30 provided to filter and discharge the.

In addition, the disk screen portion 20 and the transfer hopper 12 are spaced apart from each other to form a non-contact space portion 10a, and a front floating rake portion 30 is installed in the non-contact space portion 10a. The front flow rake part 30 is installed to close the non-contact space part 10a on the transfer hopper extension line, and the first scraper body 32 pivoted around the first hinge 31 by the driving unit, The first scraper body 32 extends upward in an arcuate shape, is accommodated between the ring disks 22, and rotates together with the first scraper body 32 to filter and discharge impurities flowing into the filter passage 23. 1 characterized in that it comprises a scraper blade (33).

In addition, a rear floating rake unit 40 is installed at a predetermined position where the impurities that are turned and transported along the disk screen unit 20 are discharged, and separates the impurities on the disk screen unit 20, and the rear flow The rake part 40 is installed in the longitudinal direction, and extends to the second scraper body 42, which is pivotally moved about the second hinge 41 by the drive unit, and the second scraper body 42 at the end. A second scraper blade 43 having an inclined tip 44 and disposed between the ring disks 22 to remove impurities attached to the disk screen part 20 while being rotated together with the second scraper body 42 It is characterized in that it includes.

In addition, the drive unit for controlling the swing operation of the front floating rake unit 30 and the rear floating rake unit 40 has long hole type cam holes 32a and 42a in the first and second scraper bodies 32 and 42. formed, characterized in that it includes eccentric cams (32b) (42b) that are cam-moved along the inner circumferential surfaces of the cam holes (32a) (42a).

According to the specific means for solving the above problems, the present invention is structurally improved so that the filtering passage of the disk screen part is locally reduced and managed by the front flow rake part, so that sewage or There is an effect of efficiently removing impurities contained in manure without flowing into the inside of the disk screen.

In addition, impurities adsorbed and remaining on the outer circumferential surface of the disk screen unit can be effectively separated and removed due to the swinging operation of the front flow rake unit, and furthermore, the filtrate dehydration efficiency through the disk screen unit can be improved.

In addition, impurities attached to the disk screen can be effectively separated and removed by the rear flow rakes formed on the discharge side, so that the functionality of the disk screen can be maintained for a long time.

1 is a configuration diagram showing a state in which a rotary screen device provided with a floating rake provided in the present invention is applied to a general impurities processor.
2 is an enlarged configuration diagram showing a disk screen unit and a front floating rake unit of a rotary screen device having a floating rake unit according to an embodiment of the present invention.
Figure 3 is a state diagram showing the operation of the rotary screen device equipped with a fluid rake unit according to the present invention to dehydrate impurities.
Figure 4 is another embodiment of the rotary screen device provided with a flow rake of the present invention, a configuration diagram showing a rear flow rake.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the accompanying drawings. Technical terms used in this specification are terms selected in consideration of functions in embodiments, and the meanings of the terms may vary depending on specific embodiments of the invention. And throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another member interposed therebetween. do.

In addition, expressions indicating directions such as "up, down, front, back" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

1 is a configuration diagram showing a state in which a rotary screen device having a floating rake unit according to an embodiment of the present invention is applied as a whole.

The present invention relates to a rotary screen device equipped with a floating rake unit, which is installed in the sewage inlet of a comprehensive processor for separating coarse impurities contained in wastewater and then subjecting the discharged liquid to advanced dehydration in stages to separate fine impurities It is configured to firstly separate and discharge lumpy impurities and at the same time dehydrate them.

Referring to Figure 1, the screen dewatering device of the present invention is forced to flow into the rotary screen under the condition that the inflow water (sewage, manure, wastewater) and the impact of the impurities contained therein are continuously applied. The impurity feeding unit 10, the disk screen unit 20, and the front floating rake unit 30 as a whole to effectively remove impurities remaining on the outer circumferential surface of the disk screen unit due to the turning operation of the front floating rake unit while preventing the phenomenon of It consists of a main component including

First, the impurities feeding unit 10 according to the present invention is provided with a transfer hopper 12 inclined downward to supply impurities introduced through the transfer pipe 11 in a wide spread state.

The transfer hopper 12 is formed in a duct-like structure in which a predetermined compartment is formed, and the bottom surface is formed at a downward inclination angle toward one end corresponding to the disk screen unit 20 described later, and the transfer pipe 11 ) is configured so that the wider width is expanded.

In addition, a protruding line is formed at a predetermined position on the bottom surface of the transfer hopper 12, and the protruding line guides the impurities flowing through the transfer pipe 11 to move after temporary stagnation. It is provided so that impurities introduced into the conveying hopper 12 spread evenly in the width direction while passing through the projection line.

2 is an enlarged configuration diagram showing a disk screen unit and a front floating rake unit of a rotary screen device equipped with a floating rake unit according to an embodiment of the present invention, and FIG. It is a state diagram showing the action of dehydration treatment.

The disk screen unit 20 according to the present invention is rotated around the main shaft 21 on the extension line of the transfer hopper 12 to turn and transfer impurities, and a plurality of ring disks 22 to separate the filtrate contained in the impurities. are spaced apart to form a filtering passage (23).

The disc screen unit 20 is installed at both ends of the main shaft 21 and is arranged at equal intervals on a pair of side wheels 24 that rotate together with the main shaft 21 and the side wheels 24 , Long bolts 25 that support the ring disk 22 spaced apart at predetermined intervals, penetrate the inner region of the ring disk 22, and pass the filtrate flowing between the ring disks 22 through the filtering passage 23 downward. It includes an inner flow path 26 for discharging.

Since the disk screen part 20 is configured to rotate by external power, the passage functions as a filtering passage 23 when positioned above the main shaft 21 and as an inner passage 26 when positioned below the main shaft 21.

Referring to FIG. 2, the ring disk 22 has fastening holes penetrated at regular intervals, long bolts 25 are inserted through the fastening holes, and fastened to the long bolts 25 as shown in the enlarged view of FIG. A washer is inserted between the ring disks 22, and a filter passage 23 is formed as the distance between the ring disks is spaced by the size of the washer.

As the ring disks 22 are spaced apart to form the filtering passage 23, the filtrate flows through the filtering passage 23 while the contaminants introduced through the transfer hopper 12 are turned and transferred along the outer circumferential surface of the disk screen unit 20. ) and collected in the lower water collection tank via the inner flow path 26, and the solid impurities are turned and transferred to the opposite side while being caught on the outer circumferential surface of the ring disk 22, and are provided to be separated and discharged.

The front floating rake part 30 according to the present invention is installed between the disk screen part 20 and the transfer hopper 12, and one end is accommodated between the ring discs 22 in the side direction of the transfer pipe 11. It is provided to filter and discharge contaminants flowing into the filtering passage 23 while being rotated around the formed first hinge 31 .

Referring to FIG. 3, in the rotary screen device of the present invention, the disc screen unit 20 and the transfer hopper 12 are spaced apart from each other to form a non-contact space 10a. In this non-contact space 10a, A front floating rake part 30 is installed.

Specifically, the front floating rake part 30 is installed to close the non-contact space part 10a on the transfer hopper extension line, and the first scraper body 32 pivoted around the first hinge 31 by the driving unit And, it extends upward in an arch shape at the end of the first scraper body 32 and is accommodated between the ring disks 22, and is rotated together with the first scraper body 32 to filter impurities flowing into the filtering passage 23, It is formed between the discharged first scraper blade 33 and the first scraper body 32 and the first scraper blade 33 to divert the impurities transported along the first scraper body 32 upward. It includes an arcuate curve bar 34 formed in a streamlined shape.

Looking at the operation of the front floating rake part 30 configured as described above to dehydrate the impurities, as shown in FIG. 3 (a), the first scraper body 32 installed in the non-contact space 10a has a predetermined As the space is spaced apart from each other to form a space, the impurities introduced through the transfer hopper 12 are separated first through the space between the first scraper bodies 32 in the non-contact space 10a area, and then the disk screen unit ( 20), so the filtrate dehydration efficiency is improved.

At this time, the first scraper blade 33 is accommodated between the ring disks 22 in an area where impurities introduced through the transfer hopper 12 collide with the outer circumferential surface of the disk screen unit 20.

Accordingly, even when an impact amount is generated due to the collision of impurities and wastewater on the outer circumferential surface of the disk screen unit 20, the first scraper blade 33 prevents impurities in the form of solids from being forcibly introduced into the filter passage 23, In addition, as shown in FIG. 3 (b), even if minute impurities are caught between the ring disk 22 and the first scraper blade 33, they are easily discharged to the outside of the filter passage 23 by the turning operation of the first scraper blade 33. There is an advantage to being

In addition, since the contaminants transported along the first scraper body 32 by the arcuate curve 34 are provided to flexibly change the direction upward, scattering of contaminants due to water impact is prevented and the disk screen unit 20 The impurity impurity collision pressure against the outer circumferential surface is reduced, thereby preventing the impurity from being forcibly introduced into the filter passage 23 .

The front flow rake part 30 can provide an effect of buffering and attenuating the amount of impact of the disk screen part 20 caused by the pumped and introduced sewage.

As shown in FIG. 3 (b), when sewage is introduced in a state where the first scraper body 32 is maximally exposed, the plurality of first scraper bodies 32 arranged in parallel primarily absorb the water impact and at the same time, impurities in the sewage It is adhered on the first scraper body 32.

After that, when the first scraper body 32 pivots around the first hinge 31 and enters the filtration passage 23, the adhering impurities are stably seated on the outer surface of the ring disk 22 and are turned and transferred to the rear. .

Figure 4 is another embodiment of the rotary screen device equipped with a floating rake of the present invention, a configuration diagram showing a rear floating rake, installed at a predetermined position from which impurities turned and transported along the disk screen portion 20 are discharged, A rear floating rake part 40 separating the on the disk screen part 20 may be further provided.

The rear floating rake part 40 is installed in the longitudinal direction and extends to the second scraper body 42 pivoted about the second hinge 41 by the drive unit and to the end of the second scraper body 42. A second scraper blade with an inclined tip 44 formed at the end and disposed between the ring disks 22 to remove impurities attached to the disk screen part 20 while being rotated together with the second scraper body 42 (43).

When the rear floating rake part 40 is further provided, the inclined tip 44 is swiveled while being accommodated in the filtering passage 23, and the impurities caught in the filtering passage 23 are cleanly removed, so that the transfer hopper 12 ), the filtrate dehydration efficiency is improved while the impurities introduced along the outer circumferential surface of the disk screen unit 20 are turned and transported, and the wastewater or fine impurities introduced into the disk screen unit 20 through the filtering passage 23 are removed from the inner surface. It has the advantage of being discharged more smoothly through the flow path 26 .

In addition, when the disk screen unit 20 rotates, the inclined tip 44 intermittently rubs against the long bolt 25 in the filtering channel 23, and the string and hair wound around the filtering channel 23 on the principle of scissors , Long-term continuous operation is possible because linear impurities including tissues are cut and removed.

The turning operation of the front floating rake part 30 and the rear floating rake part 40 may be implemented by a drive unit including eccentric cams 32b and 42b as shown in FIGS. 2 to 4 .

Specifically, the driving unit is an eccentric cam (32b) in which long hole-shaped cam holes (32a) (42a) are formed in the first and second scraper bodies (32) (42), and the cams move along the inner circumferential surfaces of the cam holes (32a) (42a). (42b) is provided.

Also, the drive shafts of the eccentric cams 32b and 42b may be connected to the main shaft 21 by a power transmission member such as a belt or a chain. Accordingly, the structure of the device is simplified and the disc screen unit 20 In proportion to the rotational motion, the rotation speed of the front floating rake unit 30 and the rear floating rake unit 40 is increased, so that the filtrate can be efficiently separated by flexibly responding to the input amount of impurities.

As described above, the most preferred embodiment of the present invention has been described in the detailed description of the present invention, but various modifications may be made within a range that does not depart from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and from these techniques to equivalent technical means.

10: impurity feeding unit
10a: non-contact space 11: transfer pipe 12: transfer hopper
20: disk screen unit
21: main shaft 22: ring disk 23: filter oil
24: side wheel 25: long bolt 26: inner euro
30: front floating rake part
31: first hinge 32: first scraper body 32a, 42a: long hole type cam hole
32b, 42b: eccentric cam 33: first scraper blade 34: arcuate curve bar
40: rear floating rake part
41: second hinge 42: second scraper body
43: second scraper blade 44: inclined tip

Claims (5)

an impurity feeding unit 10 equipped with a transfer hopper 12 to supply impurities introduced through the transfer pipe 11 in an unfolded state;
On the extension line of the transfer hopper 12, a plurality of ring disks 22 are spaced apart to form a filtration passage 23 so as to rotate around the main shaft 21 to turn and transfer impurities and to separate the filtrate contained in the impurities. a disk screen unit 20; and
It is installed between the disk screen unit 20 and the transfer hopper, and one end is pivoted around the first hinge 31 formed in the side direction of the transfer pipe 11 in a state accommodated between the ring discs 22, A front flow rake part 30 provided to filter and discharge impurities flowing into the filtering passage 23; includes,
The disc screen part 20 and the transfer hopper 12 are spaced apart from each other to form a non-contact space 10a, and a front floating rake part 30 is installed in the non-contact space 10a,
The front floating rake part 30,
A first scraper body 32 installed in the non-contact space 10a on the extension line of the transfer hopper 12 and pivoted around the first hinge 31 by a driving unit;
A first device that extends upward to the end of the first scraper body 32 and is accommodated between the ring disks 22, and filters and discharges impurities flowing into the filtering passage 23 while being rotated together with the first scraper body 32 Rotary screen device equipped with a floating rake portion, characterized in that it comprises a scraper blade (33).
According to claim 1,
A rear floating rake part 40 is installed at a predetermined position where impurities turned and transported along the disk screen unit 20 are discharged, and separates the impurities on the disk screen unit 20,
The rear floating rake part 40,
A second scraper body 42 installed in the longitudinal direction and pivoted around the second hinge 41 by the driving unit;
It extends to the end of the second scraper body 42 and has an inclined tip 44 formed at the end, and is disposed between the ring disks 22 and rotates together with the second scraper body 42 to form a disk screen unit 20. A rotary screen device with a floating rake part, characterized in that it includes a second scraper blade 43 for removing attached impurities.
According to claim 1 or 2,
The drive unit for controlling the turning operation of the front floating rake unit 30 and the rear floating rake unit 40 has long hole cam holes 32a and 42a formed in the first and second scraper bodies 32 and 42, , The rotary screen device provided with a floating rake unit, characterized in that it includes eccentric cams (32b) (42b) that are cam-moved along the inner circumferential surface of the cam holes (32a) (42a).
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