KR102595046B1 - chain flight type sludge collector - Google Patents

Abstract

Disclosed is a chain flight type sludge collector.
A chain flight type sludge collector according to an embodiment includes a chain that orbits and rotates to pass through a lower area adjacent to the bottom of a sedimentation tank into which raw water flows and an upper area adjacent to the water surface along a horizontal direction; It may include a flight supported on the chain to collect sludge settling on the bottom of the sedimentation tank or scum floating on the water surface of the sedimentation tank while traveling, and provided with a buoyancy body so that it can float in the process of collecting the scum. there is.

Description

Chain flight type sludge collector {chain flight type sludge collector}

This relates to a chain flight type sludge collector that collects sludge or scum using flights connected to an orbitally rotating chain.

In water purification plants, sewage treatment plants, wastewater treatment plants, etc., sludge collectors are installed that scrape the sludge settled at the bottom of the sedimentation tank and discharge it to the outside, and push out the scum floating on the water surface and discharge it to the outside. Among sludge collectors, chain flight type sludge collectors are widely used.

The chain flight type sludge collector includes a motor provided at the top of the sedimentation tank to provide power, a driving sprocket that receives power from the motor, a plurality of driven sprockets that rotate, a chain in the shape of an endless track connecting the sprockets, and a chain connected to the chain. It is installed and equipped with a flight that scrapes sludge from the bottom of the sedimentation tank and pushes out scum floating on the water surface.

Typically, a pair of chains is arranged to rotate in the longitudinal direction of the sedimentation tank, spaced apart from each other along the width direction of the sedimentation tank, and the flights are coupled to the chain to connect across the plurality of chains and travel along the rotation direction of the chain to collect sludge or debris. scum is collected.

Therefore, the flight can scrape up sludge while traveling toward the bottom of the sedimentation tank, and scrape up scum floating on the water surface while traveling on the top of the sedimentation tank.

Meanwhile, when collecting sludge or scum, guide rails are sometimes installed on the bottom of the sedimentation tank and the upper part adjacent to the water surface to guide the movement of the flight traveling in the horizontal direction.

However, in this structure where the flights are supported on the guide rails, the load of the flights themselves and the weight of the chain are applied to the guide rails through the flights, and the plate is easily damaged by the friction formed between the guide rails and flights. There was a risk of it being worn out.

In addition, as the chain flight type sludge collector ages, the chain whose tensile strength has decreased may partially sag in the upper area. This sagging phenomenon causes the postural imbalance of the flights, preventing the flights from pushing out the scum properly. , it can act as a factor that reduces scum removal efficiency.

Korean Patent Publication No. 10-2044386 (announced on November 13, 2019)

The aim is to provide a chain flight type sludge collector that can suppress wear of flights and improve scum removal efficiency by flights.

A chain flight type sludge collector according to an embodiment includes a chain that orbits and rotates to pass through a lower area adjacent to the bottom of a sedimentation tank into which raw water flows and an upper area adjacent to the water surface along a horizontal direction; A flight connected to the chain to travel and collect sludge settling on the bottom of the sedimentation tank or scum floating on the water surface of the sedimentation tank, and provided with a buoyancy body so as to be able to float in the process of collecting the scum.

The section of the orbitally rotating chain includes a lower horizontal movement section passing through the lower region in a horizontal direction; an upper horizontal movement section passing through the upper region in a horizontal direction; a rising section rising from the lower horizontal moving section to the upper horizontal moving section; and a descent section that descends from the upper horizontal movement section to the lower horizontal movement section, wherein the flight allows the buoyancy in the upper horizontal movement section to be greater than the buoyancy in the descent section, the lower horizontal movement section, and the rise section. Each section of the chain It may include; a raw water inlet/outlet groove provided to allow raw water to enter and exit depending on the angle of the flight.

The raw water inlet/outlet groove maintains a state in which raw water flows into the inside while the flight is located in the lowering section, lower horizontal movement section, and rising section of the chain, and the position of the flight is in the upper horizontal movement section of the chain. In the process of switching to the moving section, the raw water inside is discharged to the outside, and the raw water discharged inside is maintained while the flight is located in the upper horizontal movement section of the chain, and the position of the flight is adjusted to that of the chain. It may be arranged to allow raw water to flow into the interior during the transition from the upper horizontal movement section to the lowering section.

The raw material entry/exit groove may be provided in the buoyancy body.

The section of the orbitally rotating chain includes a lower horizontal movement section passing through the lower region in a horizontal direction; an upper horizontal movement section passing through the upper region in a horizontal direction; a rising section rising from the lower horizontal moving section to the upper horizontal moving section; a descent section that descends from the upper horizontal movement section to the lower horizontal movement section; a sinking guide that induces the sinking of the flight in the process of changing the position of the flight from the upper horizontal movement section of the chain to the descent section; It may further include.

The flight further includes a main body coupled to the chain, and a plurality of the buoyancy bodies may be individually separably coupled to the main body.

The flight includes a main body coupled to the chain, and the main body may be provided as the buoyancy body.

The chain may include an auxiliary buoyancy body.

The chain further includes a plurality of coupling portions to which the auxiliary buoyancy body is detachably coupled, and the auxiliary buoyancy body may be coupled to at least some of the plurality of coupling portions.

The chain includes a first chain and a second chain disposed on both sides along the width direction of the sedimentation tank; A third chain disposed between the first chain and the second chain, wherein the flights include: a plurality of first flights connected to the first chain and the third chain to be supported; A plurality of second flights connected to the second chain and the third chain to be supported, wherein the first flights and the second flights are alternately arranged along the running direction, and corresponding ends are connected to the running direction. They may extend to overlap each other along the direction.

The chain includes a first chain and a second chain disposed on both sides along the width direction of the sedimentation tank; A third chain and a fourth chain disposed between the first chain and the second chain, wherein the third chain is disposed adjacent to the first chain, and the fourth chain is adjacent to the second chain. It is arranged so that the flights include a plurality of first flights connected to be supported by the first chain, the third chain, and the fourth chain; A plurality of second flights connected to the second chain, the fourth chain, and the third chain to be supported, wherein the first flights and the second flights are alternately arranged along the traveling direction, and correspond to The ends may extend to overlap each other along the traveling direction.

According to the chain flight type sludge collector according to one embodiment, the flight can effectively receive buoyancy and reduce the load on the flight in the process of removing scum, thereby suppressing wear of the flight and removing scum by the flight. Efficiency can be improved.

Figure 1 is a side cross-sectional view of a chain flight type sludge collector according to an embodiment.
Figure 2 is an enlarged view of the main part of Figure 1, showing a structure in which raw water is discharged from the raw water inlet/outlet groove while the flight travels along the chain.
Figure 3 is a perspective view showing the structure of a flight in a chain flight type sludge collector according to an embodiment.
Figure 4 is an enlarged view of the main part of Figure 1 and shows the structure of the chain.
Figure 5 is a side cross-sectional view enlarged showing the structure of the sinking guide as a modified example of a chain flight type sludge collector according to an embodiment.
Figure 6 is a main plan view showing the arrangement structure of chains and flights as another modified example of a chain flight type sludge collector according to an embodiment.
Figure 7 is another modified example of a chain flight type sludge collector according to an embodiment, a main plan view showing the arrangement structure of chains and flights.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments introduced below are provided as examples so that the idea of the present invention can be sufficiently conveyed to those skilled in the art. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated for convenience. Like reference numerals refer to like elements throughout the specification.

As shown in Figures 1 to 4, the chain flight type sludge collector according to one embodiment is provided with a configuration for collecting and removing sludge or scum in the raw water (2) flowing into the sedimentation tank (1).

Sludge refers to sediment generated during the biological treatment of sewage or wastewater using microorganisms. In other words, in the process of decomposing sewage or wastewater using microorganisms, the microorganisms ingest organic matter as nutrients and grow in size, and sludge has the property of settling due to the presence of these enlarged microorganisms.

Raw water 2 containing sludge is introduced into the sedimentation tank 1 after going through a microbial reaction step, and the sludge contained in the raw water 2 sinks to the bottom of the sedimentation tank 1.

The chain flight type sludge collector collects and removes sludge that settles to the bottom of the settling tank (1) or scum floating on the water surface (3), and the purified raw water (2) with the sludge or scum removed is discharged into rivers or rivers in a disinfected state. It may be discharged into the sea.

The sludge collected in the sedimentation tank 1 is returned to the biological reaction stage where the previous water treatment step is performed, thereby ensuring that sufficient microorganisms are secured during the biological treatment process.

A collection hopper 4 for collecting sludge is formed at one end of the bottom (left side of Figure 1) in the longitudinal direction of the settling tank 1, and a pipe for returning and discharging the sludge may be connected to the collection hopper 4. .

The chain flight type sludge collector includes a chain (10) that orbits and rotates to pass through the lower area adjacent to the bottom of the settling tank (1) and the upper area adjacent to the water surface (3) along the horizontal direction, and sludge that settles to the bottom of the settling tank (1). Alternatively, a flight 20 supported on a chain 10 is provided to collect scum floating on the water surface 3 of the raw water 2 inside the sedimentation tank 1 while traveling.

A skimmer 5 for collecting scum is installed in the sedimentation tank 1 approximately near the center of the water surface 3, and a pipe for discharging the collected scum may be connected to the skimmer 5.

The chain 10 is installed inside the settling tank 1 to orbitally rotate along the longitudinal direction of the settling tank 1, and may be provided as a pair disposed on both sides in the width direction of the settling tank 1.

The section of the chain 10 that orbits along the longitudinal direction of the sedimentation tank 1 includes the lower horizontal movement section 11 that passes through the lower area adjacent to the bottom of the sedimentation tank 1 in the horizontal direction, and the water surface of the raw water 2. An upper horizontal movement section (13) passing through the upper area of the sedimentation tank (1) adjacent to (3) in the horizontal direction, and an upward section (12) rising from the lower horizontal movement section (11) to the upper horizontal movement section (13). ) and a lowering section 14 that descends from the upper horizontal movement section 13 to the lower horizontal movement section 11. The rising section 12 may be formed in a vertical direction, and the falling section 14 may be formed long in a diagonal direction.

The chain 10 forms a conveyor together with the sprockets 30 and 40 so that the flight 20 supported by the chain 10 travels along the chain 10.

The sprockets (30, 40) include a driving sprocket (30) and a driven sprocket (40), and the driving sprocket (30) supports the chain (10) between the rising section (12) and the upper horizontal movement section (13). can be placed.

The driven sprocket (40) includes a first driven sprocket (41) that supports the chain (10) between the upper horizontal movement section (13) and the lowering section (14), the lowering section (14) and the lower horizontal movement section (11). It may include a second driven sprocket (42) supporting the chain (10) between the lower horizontal movement section (11) and the rising section (12), and a third driven sprocket (43) supporting the chain (10) between the lower horizontal movement section (11) and the rising section (12). You can.

The driving sprocket 30 and the third driven sprocket 43 are arranged to be located on approximately the same vertical line so that the rising section 12 is formed in the vertical direction, and the lowering section 14 is made to extend long in the diagonal direction. The distance between the third driven sprocket (43) and the second driven sprocket (42) may be longer than the distance between the drive sprocket (30) and the first driven sprocket (41).

The driving sprocket 30 and the driven sprocket 40 are provided for each individual chain 10, and the corresponding sprockets 30 and 40 between the chains 10 are connected through a connecting shaft so that the plurality of chains 10 rotate together. can be connected

The chain flight type sludge collector is equipped with a driver (not shown) that provides rotational driving force for the chain 10, and the driver (not shown) is configured through a motor (not shown) disposed on one upper side of the sedimentation tank 1. You can.

The shaft of the motor (not shown) may be connected to a drive wheel (not shown) that rotates the drive sprocket 30 through a belt so that the rotational force of the motor (not shown) is transmitted to the drive sprocket 30.

The positions of the driving sprocket 30 and the first driven sprocket 41 may be opposite to each other, and the position of the driving unit (not shown) may also vary accordingly.

The flights 20 connected between the chains 10 may be formed in the form of a plate that is long in the direction in which the chain 10 is placed and narrow in the direction in which it protrudes from the chain 10.

The flights 20 are connected to the outer surface of the chain 10 through a connecting bracket 6 so as to scratch the bottom of the sedimentation tank 1 or the water surface 3, and a plurality of flights 20 are arranged at predetermined intervals on the chain 10. It can be.

Therefore, when the chain 10 is orbitally rotated by the driver (not shown), the flight 20 moves through the lower horizontal movement section 11, the rising section 12, and the upper horizontal movement section 13 of the chain 10. It travels along the chain 10 that rotates in order to sequentially pass through the descending section 14.

The flight 20 pushes the sludge toward the collection hopper 4 while rubbing against the bottom of the sedimentation tank 1 while traveling in the lower horizontal movement section 11, and moves the sludge toward the collection hopper 4 while traveling in the upper horizontal movement section 13. The scum floating in (3) can be pushed and moved to be collected in the skimmer (5).

Guide rails 7 may be provided at the bottom of the sedimentation tank 1 on both sides in the width direction of the sedimentation tank 1 to support the flights 20 in a sliding state.

The flight 20 is supported on the guide rail 7 through a connection bracket 6, and the connection bracket 6 has a roller (not shown) to reduce friction between the flight 20 and the guide rail 7. Can be installed.

Therefore, the flight 20 can ensure the safety of the sludge collection operation while being slidably supported on the guide rail 7 when traveling in the lower horizontal movement section 11.

In addition, the flight 20 is intended to ensure the safety of operation according to scum collection, and may be provided with a buoyancy body 60 so that it can float during the process of collecting scum.

This plate 20 can stably push scum floating on the water surface 3 toward the skimmer 5 while traveling in the upper horizontal movement section 13 while floating on the water surface 3.

Therefore, the chain plate type sludge collector can ensure the operational stability of the flight 20 that collects scum without a separate guide rail.

In a structure in which the guide rail at the top of the sedimentation tank (1) is deleted, the overall configuration of the device is simplified and the constructability of the sludge collector can be improved. In the process of traveling in the upper horizontal movement section (13), the flight (20) is connected to the guide rail. Since there is no need for friction, the wear performance of the flight 20 can also be improved.

In addition, in the case of the flight (20) that can float, it is possible to drive while maintaining a stable posture while floating on the water surface (3) regardless of the sagging phenomenon of the chain (10), so the scum due to the sagging of the chain (10) It can prevent the removal efficiency from decreasing.

As these flights 20 are arranged more densely so that the gap between the flights 20 can be narrowed, the floating ability can be increased in the upper horizontal movement section 13.

As shown in Figure 3, the flight 20 has a main body 21 coupled to the chain 10, and a plurality of buoyancy bodies 60 can be coupled to the main body 21 so that they are individually separable. .

In this structure of the flight 20, the number of buoyancy bodies 60 coupled to the main body 21 is adjusted, so that the buoyancy of the flight 20 depends on the environment of the sedimentation tank 1 or the conditions of the raw water 2. can be adjusted.

The main body 21 forms the outer shape of the flight 20 and can be prepared in the form of a plate having an approximately 'U'-shaped cross section through a reinforced plastic material such as fiber glass reinforced plastic (FRP). . The main body 21 may include a support plate portion 21a disposed toward the chain 10 and a pair of extension plate portions 21b extending vertically from both sides in the width direction of the support plate portion 21a.

The buoyancy body 60 is made of a foamed plastic material that is easily subject to high buoyancy, such as synthetic resin foam or expanded synthetic resin, and is inserted into the support plate portion 21a and a pair of extension plate portions 21b and coupled to the main body 21. It can be.

A support protrusion (21c) is provided at the end of the extension plate portion (21b) in the extension direction to support the upper end of the buoyancy body (60) to prevent the buoyancy body (60) coupled to the main body (21) from being arbitrarily separated from the main body (21). can do.

The buoyancy body 60 may be fitted by sliding from the outside of the side of the main body 21 to the inside of the main body 21 so that its upper end can be caught on the support jaw 21c.

A plurality of buoyancy bodies 60, each of which is shorter in length than the main body 21, are arranged inside the main body 21 so as to be in close contact with each other along the longitudinal direction of the main body 21, and each buoyancy body 60 has a circle that will be described later. An import/export home 61 may be provided.

On the upper surfaces of one end and the other end of the buoyancy body 60 in the longitudinal direction of the main body 21, a locking protrusion 62 and a locking portion 63 supported to be caught by the locking protrusion 62 are provided to connect the neighboring buoyancy bodies 60. They can be supported through a mutual locking structure. According to this, even when the main body 21 is deformed by receiving an external force, the buoyancy bodies 60 can be stably maintained in a mutually supported state by the locking structure between the locking protrusion 62 and the locking portion 63. .

Unlike the present embodiment, the flight 20 can be provided with a floating characteristic while simplifying the overall structure by constructing the main body 21 itself using a buoyancy body.

Additionally, in order to increase the floating ability of the flight 20, the chain 10 may be provided with an auxiliary buoyancy body 70. The auxiliary buoyancy body 70 may be made of the same material as the buoyancy body 60.

The chain 10 has a plurality of coupling parts 15 to which the auxiliary buoyancy body 70 is detachably coupled, and the auxiliary buoyancy body 70 can be coupled to at least some of the plurality of coupling parts 15. .

Accordingly, the floating ability of the flight 20, which is improved through the chain 10, can be adjusted by adjusting the number of auxiliary buoyancy bodies 70 coupled to the coupling portion 15.

The chain 10 has a plurality of links 16 rotatably connected to each other through a connecting pin 17, so that it can form an infinite orbit. The connection pin 17 is coupled to both ends of the individual link 16, and the coupling portion 15 has a coupling groove 18 formed between both ends of the link 16 to fit the auxiliary buoyancy body 70. It can be included. The auxiliary buoyancy body 70 is provided in a shape corresponding to the coupling groove 18 and can be coupled to the coupling groove 18 in a detachable state.

Meanwhile, in the case of the buoyancy body 60 and the auxiliary buoyancy body 70, it may be advantageous for the operation of the flight 20 to remove scum, but the flight (20) must rub against the bottom of the sedimentation tank 1 in the process of removing sludge. There is a risk that the operation of 20) may be impaired.

Therefore, in order to solve this, the flight 20 is designed to provide raw water (2) according to the angle of the flight 20 for each section of the chain 10 so that the buoyancy in the upper horizontal movement section 13 can be greater than the buoyancy in the other sections. ) can be provided with a raw import/exit groove (61) that allows entry and exit.

The raw water inlet/outlet groove 61 maintains the discharge of raw water inside so that the buoyancy of the flight 20 increases when the flight 20 is located in the upper horizontal movement section 13 of the chain 10. When (20) is located in other sections of the chain (10) excluding the upper horizontal movement section (13), the raw water (2) is maintained inside so that the buoyancy of the flight (20) is relatively small. It can be provided.

This flight (20) maintains the state in which raw water (2) flows into the raw water inlet/outlet groove (61) in the lower horizontal movement section (11) of the chain (10), and as the buoyancy is reduced, it easily settles on the bottom of the sedimentation tank (1). Sludge can be effectively collected in a friction state.

The raw water inlet/outlet groove 61 may be provided on the flight 20 to open in a direction perpendicular to the driving direction of the chain 10. And the raw water inlet/outlet groove 61 can be formed through the buoyancy body 60 so that it does not need to be provided separately from the buoyancy body 60.

This raw water inlet/outlet groove (61) has raw water (2) inside when the flight (20) is positioned below the water surface (3), such as the descending section (14), the lower horizontal movement section (11), and the ascending section (12). can be maintained in an inflow state.

Also, as shown in Figure 2, the flight 20, which was lying horizontally in the rising section 12, moves to the upper horizontal movement section 13 and changes its angle to stand vertically, moving to the upper part of the water surface 3. can be located

In this process of changing the angle of the flight 20, the raw water 2 flowing inside the raw water inlet/outlet groove 61 is discharged to the outside, and the upper part of the chain 10 moves horizontally while the flight 20 is standing vertically. While driving in the section 13, raw water may be discharged inside the raw water inlet/output groove 61.

As the flight 20 moves from the upper horizontal movement section 13 to the lowering section 14 and is positioned below the water surface 3 again, raw water 2 may flow into the raw water inlet/outlet groove 61 again.

As shown in FIG. 5, in a modified example according to an embodiment, the chain flight type sludge collector changes the position of the flight 20 from the upper horizontal movement section 13 of the chain 10 to the lowering section 14. In the process, a sinking guide (80) that induces the sinking of the flight (20) may be further provided.

The sinking guide (80) ensures the movement of the flight (20) so that the flight (20) in the state before the buoyancy is reduced moves smoothly from the upper horizontal movement section (13) to the lowering section (14), thereby ensuring the movement of the buoyancy body ( 60) or the auxiliary buoyancy body 70 can be used to prevent the running motion of the flight 20 from being impaired.

The sinking guide 80 includes a guide rail 81, and the guide rail 81 is installed at a position corresponding to the first driven sprocket 41 and can support the traveling flight 20 to be guided downward. .

The guide rail 81 may include a guide portion 81a that is inclined to guide the flight 20 downward, and a support portion 81b fixed to the sedimentation tank 1 to support the guide portion 81a. .

The sinking guide (80) is provided to support the flight (20) running in a position corresponding to and between the upper horizontal movement section (13) and the lowering section (14) of the chain (10) so as to be able to guide it downward. It may also be possible to implement it through rollers or sprockets.

Additionally, as shown in FIGS. 6 and 7, the chain may be provided in three or more rows, and the flights may be provided in multiple types.

As shown in FIG. 6, the chains 10A, 10B, and 10C include a first chain 10A and a second chain 10B disposed on both sides along the width direction of the sedimentation tank 1, and the first chain 10A ) and the third chain (10C) disposed between the second chain (10B) to form a three-row structure.

And the flights (20A, 20B) are connected to a plurality of first flights (20A) connected to be supported by the first chain (10A) and the third chain (10C), and the second chain (10B) and the third chain (10C). It can be provided in two types by having a plurality of second flights 20B connected to be supported.

Here, each chain (10A, 10B, 10C) may be provided with an auxiliary buoyancy body (70), and each flight (20A, 20B) may be provided with a buoyancy body (60).

At this time, the first flight (20A) and the second flight (20B) are arranged alternately along the running direction of the flight, and the corresponding ends extend to overlap each other along the running direction of the flight, a process in which sludge or scum is collected. It is possible to prevent escape through between the first flight (20A) and the second flight (20B).

Also, as shown in FIG. 7, the chains 10A, 10B, 10C, and 10D include a first chain 10A and a second chain 10B disposed on both sides along the width direction of the sedimentation tank 1, and a first chain 10B. A four-row structure can be formed including the third chain (10C) and fourth chain (10D) disposed between the chain (10A) and the second chain (10B). The third chain 10C may be placed adjacent to the first chain 10A, and the fourth chain 10D may be placed adjacent to the second chain 10B.

And the flights (20A, 20B) include a plurality of first flights (20A) connected to be supported by the first chain (10A), the third chain (10C), and the fourth chain (10D), the second chain (10B), and It can be provided in two types, including a plurality of second flights (20B) connected to be supported by the fourth chain (10D) and the third chain (10C).

Here, each chain (10A, 10B, 10C, 10D) may be provided with an auxiliary buoyancy body (70), and each flight (20A, 20B) may be provided with a buoyancy body (60).

At this time, the first flight (20A) and the second flight (20B) are arranged alternately along the running direction of the flight, and the corresponding ends extend to overlap each other along the running direction of the flight to collect sludge or scum. In the process, it is possible to prevent it from escaping between the first flight (20A) and the second flight (20B).

According to this arrangement structure of chains and flights, the number of guide rails on the upper part of the sedimentation tank (1) that can be removed increases in response to the increased number of chains and flights, thereby simplifying the structure of the chain flight type sludge collector and improving constructability. The effect can be obtained more effectively.

1: Sedimentation tank 2: Raw water
3: Sleep 4: Collection hopper
5: Skimmer 10: Chain
11: Lower horizontal movement section 12: Rising section
13: Upper horizontal movement section 14: Descending section
15: coupling part 20: flight
21: Body 30: Drive sprocket
40: Auxiliary sprocket 60: Buoyancy body
61: Raw import/export groove 70: Auxiliary buoyancy body
80: Sinking guide

Claims (11)

A chain that orbits and rotates to pass through the lower area adjacent to the bottom of the sedimentation tank into which raw water flows and the upper area adjacent to the water surface along the horizontal direction;
A flight connected to the chain to travel and collect sludge settling on the bottom of the sedimentation tank or scum floating on the water surface of the sedimentation tank, and provided with a buoyancy body so that it can float in the process of collecting the scum;
The flight is,
A chain flight type sludge collector further comprising a raw input/output groove provided to be open in a direction perpendicular to the driving direction of the chain. According to clause 1,
The section of the orbitally rotating chain is,
a lower horizontal movement section passing through the lower area in a horizontal direction;
an upper horizontal movement section passing through the upper region in a horizontal direction;
a rising section rising from the lower horizontal moving section to the upper horizontal moving section;
A descending section descending from the upper horizontal movement section to the lower horizontal movement section,
The raw import and export home is,
Chain flight type sludge provided to allow raw water to enter and exit according to the angle of the flight for each section of the chain so that the buoyancy in the upper horizontal movement section is greater than the buoyancy in the lowering section, lower horizontal movement section, and rising section. collector. According to clause 2,
The raw water inlet/outlet groove maintains a state in which raw water flows into the inside while the flight is located in the lowering section, lower horizontal movement section, and rising section of the chain, and the position of the flight is in the upper horizontal movement section of the chain. In the process of switching to the moving section, the raw water inside is discharged to the outside, and the raw water discharged inside is maintained while the flight is located in the upper horizontal movement section of the chain, and the position of the flight is adjusted to that of the chain. A chain flight type sludge collector in which raw water flows into the interior during the transition from the upper horizontal movement section to the lowering section. According to clause 2,
The raw water inlet/outlet groove is a chain flight type sludge collector provided in the buoyancy body. According to clause 1,
The section of the orbitally rotating chain is,
a lower horizontal movement section passing through the lower area in a horizontal direction;
an upper horizontal movement section passing through the upper region in a horizontal direction;
a rising section rising from the lower horizontal moving section to the upper horizontal moving section;
A descending section descending from the upper horizontal movement section to the lower horizontal movement section,
A chain flight type sludge collector further comprising a sinking guide that induces sinking of the flight in the process of changing the position of the flight from the upper horizontal movement section of the chain to the lowering section. According to clause 1,
The flight is,
It further includes a main body coupled to the chain,
A chain flight type sludge collector in which a plurality of the buoyancy bodies are coupled to the main body so that they can be individually separated. According to clause 1,
The flight is,
It includes a main body coupled to the chain,
The main body is a chain flight type sludge collector provided with the buoyancy body. According to clause 1,
The chain is,
A chain flight type sludge collector including an auxiliary buoyancy body. According to clause 8,
The chain is,
It further includes a plurality of coupling parts that are detachably coupled to the auxiliary buoyancy body,
The auxiliary buoyancy body is a chain flight type sludge collector coupled to at least some of the plurality of coupling parts. According to clause 1,
The chain is,
a first chain and a second chain disposed on both sides along the width direction of the sedimentation tank;
It includes a third chain disposed between the first chain and the second chain,
The flight is,
a plurality of first flights connected to the first chain and the third chain to be supported;
It includes a plurality of second flights connected to be supported by the second chain and the third chain,
The first flight and the second flight are arranged alternately along the traveling direction, and the end of the first flight and the end of the second flight adjacent to each other extend to overlap each other along the traveling direction. type sludge collector. According to clause 1,
The chain is,
a first chain and a second chain disposed on both sides along the width direction of the sedimentation tank;
It includes a third chain and a fourth chain disposed between the first chain and the second chain,
The third chain is arranged adjacent to the first chain,
The fourth chain is arranged adjacent to the second chain,
The flight is,
a plurality of first flights connected to be supported by the first chain, third chain, and fourth chain;
It includes a plurality of second flights connected to be supported by the second chain, fourth chain, and third chain,
The first flight and the second flight are arranged alternately along the rotation direction, and the end of the first flight and the end of the second flight adjacent to each other extend to overlap each other along the traveling direction. type sludge collector.

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