KR20060113608A - Rotating pressing type solid separator - Google Patents

Abstract

A rotary pressing type solid-liquid separator which can treat a large quantity of raw water promptly by performing continuous separating operation using a rotating drum and pressing raw water forcibly using natural liquid fall as well as raw water pressing device, improves quality of filtered water without an additional dewaterer by obtaining superior pressing degree of separated solids, and can be applied to various uses by controlling filter film types and dewatering time is provided. A rotary pressing type solid-liquid separator comprises: a drum(4) in which a raw water receiving space is formed, which has a plurality of partition plates(11) installed on an inner peripheral surface thereof to divide the raw water receiving space into a plurality of unit filter frames(10), and which has a main filter film(12) formed on the surface thereof; a raw water feeder(5) for feeding raw water(3) into the drum; a drum rotating device(6) for rotating the drum; a raw water pressing device(7) for pressing raw water contained in the unit filter frames of the drum; a liquid recovering device(8) for recovering a liquid(2) that passes through the filter film of the drum; and a solid recovering device(9) for recovering solids(2) remained on the filter film of the drum. The raw water feeder comprises a raw water feeding pump(16), a raw water feeding pipe(17), and a raw water distributing housing(18). The drum rotating device comprises a drive roller(21), a drive motor(23), supporting rollers(24), and a vibration generator(25).

Description

Rotating pressing solid separator

1 is a longitudinal sectional view showing a rotary compression solid-liquid separator according to an embodiment of the present invention.

2 is a partial cutaway perspective view of FIG. 1.

3 is a cross-sectional view showing an example of the raw water crimp device of FIG.

4 is a perspective view showing the arm rotary compactor of FIG.

5 is a perspective view illustrating a drum and a guide in which the partition plate of FIG. 3 is installed.

FIG. 6 is a cross-sectional view showing a plate contact compression dewatering plate which is another example of a compression device of a rotary compression solid-liquid separator according to another preferred embodiment of the present invention.

7 is a cross-sectional view of FIG. 1.

(Description of Major Symbols in the Drawing)

1: solid 2: liquid

3: enemies 4: drums

5: raw water supply 6: drum rotator

7: Raw Water Crimping Device 8: Liquid Recovery Device

9: solid recovery unit 10: unit filter frame

11: Partition Plate 12: Master Filtration

13: auxiliary filtration membrane 14: internal frame

15: outer frame 16: raw water supply pump

17: raw water supply pipe 18: raw water distribution box

19: middle partition 20: drip board

21: drive roller 22: drive motor

23: power transmission device 24: support roller

25: vibration generator 26: arm

27: guide 28: guide roller

29: press plate 30: press plate scraper

31: Auxiliary support roller 32: Plate press-fitting dehydration plate

33: liquid recovery tube 34: liquid recovery tank

35: primary solid recovery plate 36: secondary solid recovery plate

37: wash water 38: wash water pump

39: washing water supply pipe 40: washing water distributor

41: washing water nozzle 42: female rotary press

43: crimping filtration

The present invention relates to a rotary compression solid-liquid separator, and more particularly, to a rotary compression solid-liquid separator capable of high compression efficiency and continuous solid-liquid separation operation to greatly improve the processing capacity and processing performance.

In general, the conventional solid-liquid separator which can separate the liquid and solid from the raw water in the mixed liquid and solid state is widely used for livestock wastewater or wastewater treatment, according to the principle, centrifugal separator, gradient plate separator, drum Filter separators and the like.

The centrifugal separator has a structure such as rotating a drum-type filter barrel horizontally dehydrated by centrifugal force, separating the remaining solids (solids) with a screw, etc., or rotating them at high speed to obtain greater centrifugal force. Complex, difficult to operate, and due to the high-speed rotation of the filter, there is a limit to increasing the size or size of the filter, and the filter network of the filter is easily blocked, making it difficult to continuously separate the work and to treat a large amount of raw water such as poor drainage. There was an issue that was difficult.

In addition, the inclined plate separator separates the liquid and the solids by passing raw water through the inclined filtration membranes and leaving the solids on the inclined plates to separate the liquids and solids. Difficult to work, because the water falls naturally due to gravity, there is a problem that the separation efficiency is very low and requires a separate non-continuous dewatering device.

In addition, the drum filter separator supplies raw water to a cylindrical drum filter to recover liquid passing through the drum filter from below, and rotates the solid, which is attached to the internal filtration membrane of the drum filter, under high pressure washing water or washing air. As the separation, the continuous operation is possible, but this also has a problem such that the dehydration efficiency is very low because the water falls naturally due to gravity like the inclined plate separator, a separate non-continuous dehydration device is required.

An object of the present invention for solving the above problems, it is possible to continuously separate the operation using a rotating drum, while using the natural drop of the liquid at the same time it is possible to forcibly press the raw water using a raw water crimping device relatively structure It is to provide a rotary compression solid-liquid separator that is simple, easy to operate, inexpensive, can reduce the installation area, and can quickly process a large amount of raw water.

In addition, another object of the present invention is to provide a rotary compression type solid-liquid separator which is excellent in the degree of compaction of the separated solids (solids) so that a separate dehydrator is unnecessary and the quality of the filtered water can be improved.

In addition, another object of the present invention, for the pre-treatment of livestock wastewater, for the sedimentation tank and advanced treatment of wastewater treatment plant, by adjusting the type and dehydration time of the filtration membrane, algae and suspended solids in lakes, ponds and farms (Suspended solid) It is to provide a rotary compression solid-liquid separator that can be applied to a wide range of applications, such as removal).

In order to achieve the above object, the rotary compression solid-liquid separator of the present invention comprises a solid-liquid separator that separates solids and liquids from raw water, wherein a raw water accommodating space is formed therein and divided into a plurality of unit filter frames on the inner circumferential surface thereof. A plurality of partition plates are installed on the inner circumferential surface so as to have a main filtration film formed on a surface thereof; A raw water supply device for supplying raw water into the drum; A drum rotating device for rotating the drum; Raw water crimping device for crimping the raw water contained in the unit filter frame of the drum; A liquid recovery device for recovering the liquid that has passed through the filtration membrane of the drum; And a solid recovery device for recovering the solid remaining in the filtration membrane of the drum.

In addition, according to the present invention, the raw water supply device, a raw water supply pump; A raw water supply pipe for supplying raw water into the drum by the raw water supply pump; And dispensing the raw water supplied by the raw water supply pipe into the drum, and distributing the raw water in which an intermediate partition and a water dipping plate are formed.

In addition, according to the present invention, the drum rotating device is provided below the drum, the drive roller for rolling drive the drum in contact with the outer peripheral surface of the drum; A drive motor for rotating the drive roller; And a plurality of support rollers installed above and / or below the drum and rolling contact with an outer circumferential surface of the drum to guide the rotational trajectory of the drum, and transmitting vibration to the drum or the support roller. It is also possible to further comprise a vibration generator.

In addition, according to the present invention, it is preferable that an auxiliary filtration film is formed on the partition plate.

On the other hand, according to the present invention, the raw water pressing device, a plurality of arms are connected to one central axis and a pressing plate is attached to the end of the arm, the lower edge of the arm in contact with the partition plate as the drum rotates Is a rotary rotary presser while rotating while sliding the surface of the partition plate and at the same time rotates while compressing and dewatering the raw water so that the raw water receiving space between the pressing plate and the main filter membrane is gradually reduced; It is possible to include any of the plate-contact pressing dewatering plate that rotates at a specific position of the drum by a rotary power transmission device, and is in close contact with the partition plate in a direction to receive and reduce the raw water space inside the unit filter frame.

In addition, according to the present invention, the female rotary compactor, the guide roller is installed on the lower side to be guided by the guide installed along the partition plate inside the unit filter frame, the compression filter net is in contact with the drum It is preferable that the compression filter net scraper is installed on the rotary path so as to remove the solid remaining in the compression filter net, and the auxiliary support roller is installed on the outer circumferential surface of the drum corresponding to the female rotary press.

Hereinafter, a rotary compression solid-liquid separator according to various embodiments of the present invention will be described in detail with reference to the drawings.

First, as shown in Figures 1 and 2, the rotary compression solid-liquid separator according to a preferred embodiment of the present invention, the solid (1) and the solid (2) from the raw water (3) in the mixed state (2) 1) and the liquid 2 are separated separately, and the drum 4, the raw water supply device 5, the drum rotator 6, the raw water press device 7, and the liquid recovery device ( 8) and a solid recovery device (9).

Here, the drum 4 is a cylindrical shape in which a raw water receiving space is formed therein, and a plurality of partition plates 11 are provided on the inner circumferential surface so as to be partitioned by a plurality of unit filter frames 10, and a main filtration membrane on the surface thereof. (12) is formed.

In addition, an auxiliary filtration film 13 may be formed on the partition plate 11 so as to improve drainage of the partition plate 11.

Accordingly, the liquid 2 in the raw water 3 supplied inside the drum 4 is first dropped through the main filtration membrane 12 to be naturally dropped and recovered by the liquid recovery device 8, thereby obtaining a solid 1. ) May remain in the drum (4).

As shown in FIG. 7, the drum 4 is formed by connecting a plurality of inner frames 14 and outer frames 15 to each other to form a frame, and rolling the main filtration membrane 12 roundly attached thereto. It can be produced in a wide variety of ways.

In particular, by varying the size of the fine drilling tool of the main filtration membrane 12 for a variety of uses, namely for pre-treatment of livestock wastewater, sedimentation tank and advanced treatment of wastewater treatment plant, algae and suspended solids of lakes, ponds and farms ) It is widely applicable for removal.

In addition, the raw water supply device 5 is a device for supplying the raw water 3 into the drum 4, as shown in Figure 1 and 2, the raw water supply pump 16 and the raw water supply pipe (17) and the raw water distribution box 18 are comprised.

Here, the raw water supply pump 16 is a pump that forms a pressure difference in the raw water 3 to supply the raw water 3 to the raw water supply pipe 17, and the raw water supply pipe 17 is the raw water supply pump. The pipe 16 supplies the raw water 3 to the inside of the drum 4 by means of 16.

In addition, the raw water distribution box 18 is to distribute the raw water 3 supplied by the raw water supply pipe 17 evenly inside the drum 4, the middle partition (3) for uniform supply of raw water (3) 19) may be installed, and the water trough substrate 20 having a wavy groove may be formed so that the supply is smooth.

The raw water supply device 5 can smoothly supply the raw water 3 in the form of a mixture of the solid 1 and the liquid 2 to the drum 4, as well as the raw water supply pump. By adjusting the operating time or operating conditions of (16), the raw water 3 can be always uniformly supplied so that the raw water 3 can be filled to preferably within 5 to 30 percent of the drum according to the raw water throughput.

In addition, the drum rotating apparatus 6 of the present invention rotates the drum 4 at a constant rotational speed. As shown in FIG. 1, the driving roller 21, the driving motor 22, and the support are supported. The roller 24 and the vibration generator 25 are comprised.

Here, the drive roller 21 is provided below the drum 4 to rotate and support the drum 4 and to come into contact with the outer circumferential surface of the drum 4 to drive the drum 4 to rotate. As the vibration generator 25, the contact surface of the driving roller 21 is preferably made of an elastic material having elasticity in order to vibrate the drum 4.

In addition, the drive motor 22 rotates the drive roller 21, and the drive roller (through the drive transmission device 23 of various forms such as a belt and pulley combination or gear combination or sprocket wheel and chain combination) 21) to transmit rotational power.

In addition, the supporting rollers 24 are provided in a plurality of upper and / or lower portions of the drum 4, and are in stable contact with the outer circumferential surface of the drum 4 to prevent the drum 4 from being separated. It serves to guide the rotational trajectory of the drum 4 to ensure rotation.

In particular, the vibration generator 25 transmits vibration to the drum 4 or the support roller 24, and the liquid passage property of the main filtration membrane 12 and the auxiliary filtration membrane 13 of the drum 4 is improved. It improves and vibrates the drum 4 so that the solid 1 remaining in the drum 4 can easily fall toward the solid recovery device 9.

Although the vibration generator 25 is not shown, a detailed description of the internal structure and principle as the technology is already known and commercialized in other fields, such as rotating the eccentric weight at high speed, will be omitted.

On the other hand, the raw water crimping device 7 of the present invention, as shown in Figure 3 and 4, forcibly compressing the raw water (3) accommodated in the unit filter frame 10 of the drum (4), one A plurality of arms 26 is connected to the central axis of the structure and the end of the arm 26 is a structure in which the pressing plate 29 is attached, the partition plate 11 also rotates as the drum 4 rotates The lower edge of the arm 26 in contact with the partition plate 11 is rotated while the surface of the partition plate 11 slides, and at the same time, the pressing plate 29 and the main filter membrane ( 12) the female water receiving space is gradually reduced as the rotary rotary presser 42 for compressing and dewatering the raw water (3) can be applied.

Here, the arm rotary compactor 42 is guided under the end of the arm 26 to be guided by a guide 27 installed along the partition plate 11 inside the unit filter frame 10. A roller 28 may be installed, and a porous crimping filter net 43 may be installed to increase the dewatering efficiency instead of the pressing plate 29 which is in contact with the drum 4, and the pressing plate 29 Press plate scraper 30 may be installed on the rotation path to remove the solid remaining in the).

In addition, a plurality of auxiliary supporting rollers 31 are installed on the outer circumferential surface of the drum 4 corresponding to the female rotary compactor 42 to withstand the expansion force of the solid 1 compressed by the female rotary compactor 42. To be.

Accordingly, when one arm of the female rotary presser 42 is rotated by the partition plate 11, the presser plate 29 reduces the raw water accommodating space inside the unit filter frame 10. The raw water 3 can be compressed.

At this time, the guide roller 28 installed in the lower end of the arm 26 of the arm rotary compactor 42 is guided and rolled by the guide 27 to move in the direction of the main filtration membrane 12 and accordingly The lower end of the pressing plate 29 scrapes the solid 1 on the partition plate 11 to move in the direction of the main filtration membrane 12, and the scraped solid 1 is moved by the rotation of the drum 4. By rotating together, the raw water receiving space can be reduced to squeeze out the liquid from the solid (1).

That is, the female rotary compactor 42 can squeeze liquid from the raw water 3 present in the raw water receiving space, and the remaining solid 1 adheres to the inner circumferential surface of the drum 4 so that the rotation can continue. Will be.

The liquid 2 thus squeezed may be collected in a direction falling into the liquid recovery device 8 through the main filtration membrane 12 of the drum 4 and the auxiliary filtration membrane 13 of the partition plate 11.

In addition, the solid 1 remaining on the pressing plate 29 of the female rotary press 42 may be removed by the pressing plate scraper 30 to be prepared for the next pressing.

Therefore, the rotary compression solid-liquid separator of the present invention is the unit filter frame 10 by the female rotary compactor 42 engaged with the partition plate 11 by the rotational force of the drum 4 without a separate power unit. ) By pressurizing the raw water (3) contained therein, it is possible to squeeze the liquid (2) forcibly leaving only the solid (1), thereby maximizing the solid-liquid separation efficiency due to the pressing, and continuous pressing to continuously mass the raw water It will be able to process quickly and consistently.

In addition, as well as the above-described arm rotary press 42, various raw water presses 7 may be applied, as shown in Figure 6, the drum 4 by a separate rotary power transmission device (not shown) It is also possible to apply a plate-adhesive pressing dewatering plate 32 which is rotated at a specific position of and closely adhered to the partition plate 11 in a direction to receive and reduce the raw water space inside the unit filter frame 10.

Therefore, when the unit filter frame 10 reaches a specific position by the rotation of the drum 4, the plate-contact pressing dewatering plate 32 is rotated in the direction of the partition plate 11 and overlaps therebetween. The liquid can be squeezed out of the raw water, and the remaining solid 1 is attached to the drum 4 so that the rotation can be continued.

Meanwhile, the liquid recovery device 8 recovers the liquid that has passed through the main filtration membrane 12 of the drum 4 as shown in FIGS. 1, 2, and 7. The liquid recovery tank 34 is installed below, and the recovery pipe 33 is installed on the bottom can be applied.

In addition, the solid recovery device (9) recovers the solid (1) remaining in the main filtration membrane (12) of the drum (4), and the primary solid recovery plate (35) and the secondary solid recovery plate (36) It is possible to comprise a configuration.

That is, the primary solid recovery plate 35 is provided in the front of the rotation direction of the upper side of the drum 4, and remains in the unit filter frame 10 of the drum 4, but naturally falls by gravity. It is the structure which collect | recovers the solid 1 to become primary.

In addition, the secondary solid recovery plate 36 is provided behind the drum 4 in the upper direction of the rotational direction, and the solid 1 which is not naturally dropped by the primary solid recovery plate 35 is disposed. It is a structure for secondary recovery using high-pressure washing water (37) or washing air.

Here, the washing water 37 is pressurized by the washing water pump 38 and distributed to the washing water distributor 40 along the washing water supply pipe 39, and at a high pressure through the washing water nozzle 41 of the drum 4. The solid 1 may be separated from the drum 4 while being sprayed from the outer circumferential surface to the inner circumferential surface.

Thus, as described above, when the drum 1 is rotated and the solid 1 remaining in the unit filter frame 10 of the drum 4 is positioned at the ceiling position after the raw water compaction apparatus 7, The solid 1 falls naturally to the primary solid recovery plate 35 by gravity and is recovered, and the solid 1 remaining without falling naturally is forcibly separated from the drum 4 by the washing water 37 to be secondary. The secondary solid recovery plate 36 may be recovered.

Subsequently, new raw water 3 may be supplied to the unit filter frame 10 of the drum 4 passing the secondary solid recovery plate 36 so that the solid-liquid separation operation may be continuously and repeatedly performed.

The present invention is not limited to the above-described embodiments, and of course, modifications may be made by those skilled in the art without departing from the spirit of the present invention.

Therefore, the scope of the claims in the present invention will not be defined within the scope of the detailed description, but will be defined by the following claims and the technical spirit thereof.

As described above, according to the rotary crimp solid-liquid separator of the present invention, the continuous separation operation is possible, and the raw water can be forcibly crimped, so that the structure is relatively simple, the operation is easy, the price is low, and the installation area can be reduced. It is able to process large quantities of raw water quickly, and the separated solid is sufficiently dehydrated so that no separate dehydrator is needed, and it is possible to use suitable kinds of filtration membranes according to the use, so that it is possible to pretreat livestock wastewater and settling tank of wastewater treatment plant. And it is to have an effect that can be applied to a wide range of applications, such as for altitude treatment, algae and suspended solids removal of lakes, ponds and farms.

Claims (10)

In constructing a solid-liquid separator that separates solids and liquids from raw water, A drum having a raw water receiving space formed therein, and having a plurality of partition plates installed on the inner circumferential surface thereof so as to be partitioned into a plurality of unit filtration frames; A raw water supply device for supplying raw water into the drum; A drum rotating device for rotating the drum; Raw water crimping device for crimping the raw water contained in the unit filter frame of the drum; A liquid recovery device for recovering the liquid that has passed through the filtration membrane of the drum; And A solid recovery device for recovering the solid remaining in the filtration membrane of the drum; Rotational compression type solid-liquid separator comprising a. The method of claim 1, The raw water supply device, Raw water supply pump; A raw water supply pipe for supplying raw water into the drum by the raw water supply pump; And Distributing the raw water supplied by the raw water supply pipe to the drum, the raw water distribution is formed in the middle partition and the water plate; Rotational compression type solid-liquid separator comprising a. The method of claim 1, The drum rotating device, A driving roller installed below the drum, the roller driving in rotational contact with the outer circumferential surface of the drum; A drive motor for rotating the drive roller; And A plurality of support rollers installed above and / or below the drum and rolling contact with an outer circumferential surface of the drum to guide a rotational trajectory of the drum; Rotational compression type solid-liquid separator comprising a. The method according to claim 1 or 3, The drum rotating device, the rotary compression type solid-liquid separator further comprises a; vibration generator for transmitting vibration to the drum or the support roller. The method of claim 1, A rotary compression type solid-liquid separator, characterized in that the secondary filter membrane is formed on the partition plate. The method of claim 1, The raw water crimping device, A plurality of arms are connected to one central axis and a crimping plate is attached to the end of the arm, and as the drum rotates, the lower edge of the arm contacting the partition plate rotates upward while sliding the surface of the partition plate. And a rotary rotary presser that rotates while compressing and dehydrating the raw water such that the raw water receiving space between the pressing plate and the main filtration membrane is gradually reduced. The method of claim 6, The female rotary compactor, Guide rollers are installed on the lower side of the unit filter frame so as to be guided by guides installed along the partition plate. Compression filter net is installed on the contact surface with the drum, A press plate scraper is installed on the rotary path to remove solids remaining in the press filter network, Rotary press type solid-liquid separator, characterized in that the auxiliary support roller is installed on the outer peripheral surface of the drum corresponding to the female rotary press. The method of claim 1, The raw water crimping device, It is rotated at a specific position of the drum by a separate rotary power transmission device, the plate-contact pressing dewatering plate in close contact with the partition plate in the direction of receiving and shrinking the raw water space inside the unit filter frame; Rotary solid-liquid separator. The method of claim 1, The liquid recovery device, A rotary pressurized solid-liquid separator installed below the drum and having a recovery pipe installed on a bottom surface thereof. The method of claim 1, The solid recovery device, A primary solid recovery plate installed in the front of the drum in an upper direction of the inside of the drum, the primary solid recovery plate remaining in the unit filter frame of the drum and first recovering a solid falling naturally by gravity; And A secondary solid recovery plate installed behind the drum in a direction above the inside of the drum and for secondary recovery of the non-falling solid of the primary solid recovery plate using high pressure washing water or washing air; Rotational compression type solid-liquid separator comprising a.

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