WO2014104527A1

WO2014104527A1 - Three-row chain flight-type sludge collector

Info

Publication number: WO2014104527A1
Application number: PCT/KR2013/007349
Authority: WO
Inventors: 오진환
Original assignee: 주식회사 링콘테크놀로지
Priority date: 2012-12-28
Filing date: 2013-08-14
Publication date: 2014-07-03
Also published as: KR101490368B1; KR20140086396A

Abstract

The present invention relates to a three-row chain flight-type sludge collector including: first to third chain conveyors having first to third chains which are rotated in a closed loop form by a motor and are arranged apart from each other in a settling reservoir; and multiple flights having a unit size and connected to the first to third chains and moved along the first to third chains so as to collect sludge in the settling reservoir. Said multiple flights are connected to the first and second chains and to the second and third chains, respectively, and the flights connected to the first and second chains and the flights connected to the second and third chains are alternately arranged.

Description

Three Row Chain Flight Sludge Collector

The present invention relates to a three-row chain flight type sludge collector, and more particularly, by zigzag arrangement of the flights on a three-row chain, it is possible to make a wide settling basin without using a conventional unit flight separately. The present invention relates to a three-row chain flight type sludge collector that can reduce the manufacturing cost, simplify the installation process, and prevent warpage or deformation of the flight.

In the case of water treatment facilities for water and sewage treatment, the step of removing suspended solids in raw water from domestic or industrial sites, decomposition and sedimentation step using activated sludge, and supernatant from the sedimentation step are supplied with oxygen from the aeration tank to breed aerobic bacteria. After passing through the activation step, the supernatant is re-separated from the secondary sedimentation basin, and the uppermost water passed through the tertiary sedimentation basin or filter paper is chemically treated and discharged into the stream.

In such water treatment facilities, sludge (precipitate or foam) is generated during removal of suspended solids in raw water and decomposition of wastewater using activated sludge, and a sludge collector is used to remove or collect such sludge.

There are various types of sludge collectors, but chain flight type sludge collectors are the most widely used.

Conventional chain flight type sludge collectors have a structure in which sludge is collected while the flights connected across them are driven by chains disposed on both sides thereof.

Chain flight type sludge collectors, which are known to date, are two-row chain flight systems, most of which have two rows of chains, and are arranged to collect sludge as the flight hangs on two rows of chains spaced apart from each other.

On the other hand, in order to apply the two-row chain flight method in a large sedimentation basin, the length of the flight must be long, in which case, the flight may be bent, sag due to the load.

Therefore, in large sedimentation basins, two double-row chain flights may be connected in parallel. However, when two double-row chain flights are used in this way, the production cost increases due to the increase in construction equipment, and according to the installation site. It is not easy to manufacture and install because it needs to be customized.

Therefore, it may be considered to change the existing two-row chain method to a three-row chain method as in Patent Application No. 10-1999-0045677.

However, after arranging these three-row chains, the flight must be twice as large as before to connect the flights to the three-row chain.

If the flight is to be made to the width of the settling basin, for example, if the width of the settling basin is 15 m wide, the length of the flight should also be about 15 m. In view of the fact that it is difficult to load on the road, and it is practically impossible to transfer a long flight of 15m to the site under the Road Traffic Act, it is necessary to improve the structure.

The object of the present invention is to arrange the flight on three rows of chains, so that it is possible to apply a wide settling basin using only the existing unit flight without having to separately manufacture a long flight, thereby reducing the manufacturing cost and simplifying the installation process. In addition to providing a three-row chain flight type sludge collector that can be used to prevent warpage or deformation of the flight.

The object includes: first to third chain conveyors having first to third chains rotated in a closed loop form by a motor, and spaced apart from each other in the sedimentation basin; And a plurality of flights connected to the first to third chains and having a unit size for collecting sludge of the sedimentation basin while moving along the first to third chains. 2 which are respectively connected to the second chain and the second and third chains, the flights connected to the first and second chains and the flights connected to the second and third chains are alternately arranged. Heat chain is achieved by flight type sludge collector.

The flight may have a hollow portion for absorbing the load.

The flight is in contact with the sludge pressure plate portion for pressing the sludge; A rear plate portion spaced apart from the pressing plate portion at one side of the pressing plate portion to form the hollow portion; And it may include a plurality of extension plate extending to the rear of the back plate portion.

The length of the pressing plate portion is formed longer than the rear plate portion, wherein the hollow portion is a plurality of hollow portions having different volumes, and the dummy plate portion having a shorter length than the extension plate portion borders the plurality of hollow portions between the plurality of extension plate portions. May be placed in the area.

The flight is connected to the chain by attachments integrally formed in the first to third chains, the attachment is formed with a filler block on one side, the filler block is formed by the extension plate portion and the dummy plate portion of the flight Can be inserted into the space and screwed into the flight.

According to the present invention, zigzag arrangement of the flight on a chain of three rows, it is possible to apply a wide settling basin even with the existing unit flight without the need to separately produce a long length of flight to reduce the manufacturing cost and simplify the installation process Not only can it prevent the warpage or deformation of the flight.

1 is a structural diagram of a sedimentation basin installed with a chain flight type sludge collector according to an embodiment of the present invention,

2 is an enlarged view illustrating main parts of FIG. 1;

3 is a schematic perspective view of a chain flight type sludge collector;

4 is a plan view of main parts of FIG. 3;

5 is a perspective view of a flight,

6 is a side view of FIG. 5;

7 is a view of a state in which the flight is coupled to the attachment.

110a to 110c: first to third chain conveyor

120a to 120c: first to third chain 130: attachment

140a, 140b: flight 141, 142: hollow part

143: pressure plate portion 144: back plate portion

145: extension plate portion 146: dummy plate portion

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a structural diagram of a sedimentation basin installed with a chain flight type sludge collector according to an embodiment of the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, FIG. 3 is a schematic perspective view of the chain flight type sludge collector, and FIG. 3 is a plan view of essential parts, FIG. 5 is a perspective view of the flight, FIG. 6 is a side view of FIG. 5, and FIG. 7 is a view of the flight coupled to the attachment.

Referring to these drawings, the three-row chain flight type sludge collector of this embodiment includes first to third chain conveyors 110a to 110c and spaced apart from each other in the sedimentation basin, and first to third chain conveyors 110a to 110c. And a plurality of

flights

140a and 140b respectively connected to each other to collect sludge of the sedimentation basin.

The first to third chain conveyors 110a to 110c rotate by the motor 101 as shown in FIGS. 1 and 2 and serve to move the

flights

140a and 140b.

In the present exemplary embodiment, three first to third chain conveyors 110a to 110c which are spaced apart from each other are disclosed, but the number of the first to third chain conveyors 110a to 110c may be four or more. This will be described later.

The structure of the first chain conveyor 120a will be described with reference to FIGS. 1 and 2. The first chain conveyor 120a is connected to the first chain 120a rotated in a closed loop form by the motor 101 and the first chain 120a to receive rotational power from the motor 101 to receive the first chain. A drive sprocket 106 for driving 120a, and a plurality of idle sprockets 108 connected to the first chain 120a at a position spaced apart from the drive sprocket 106 to tension the first chain 120a. ).

As a result, the first chain conveyor 120a has a first chain 120a, a drive sprocket 106 and an idle sprocket 108. This structure also allows the second and

third chain conveyors

120b and 120c to be used. same.

For reference, only the reference numerals of the first to third chains 120a to 120c are distinguished with respect to the first to third chain conveyors 110a to 110c, and the rest are to use the same reference numerals.

As described above, the first to third chain conveyors 110a to 110c having the first to third chains 120a to 120c may be spaced apart from each other and may be rotated by the motor 101 to be rotated. The drive sprockets 106 of the conveyors 110a-110c are connected by the drive shaft 105, and the idle sprockets 108 by the idle shaft 107. When the motor 101 is operated by this structure, all of the first to third chains 120a to 120c of the first to third chain conveyors 110a to 110c may be rotated in the same speed and direction.

As will be described later in detail, the first to third chains 120a to 120c are connected to the

flights

140a and 140b in a state of being coupled to the attachment 130. The

flights

140a and 140b collect the sludge of the sedimentation basin while being co-rotated with the first to third chains 120a to 120c.

That is, when the motor 101 is operated, rotational power from the motor 101 is transmitted to the drive sprockets 106 of the first to third chain conveyors 110a to 110c through the drive shaft 105, thereby providing the first to third motors. All of the first to third chains 120a to 120c on the chain conveyors 110a to 110c may be rotated.

Accordingly, the

flights

140a and 140b connected to the first to third chains 120a to 120c move along the first to third chains 120a to 120c and collect sludge (bubbles or floats, etc.) on the water surface. Sludge (sediment, etc.) at the bottom of the sedimentation basin is pushed to the storage 103 to be collected.

Meanwhile, in this structure, the

flights

140a and 140b may be formed on the first and

second chains

120a and 120b and the second and

third chains

120b and 120c, respectively, as shown in FIGS. 3 and 4. The first and

second chains

120a and 120b and the

flights

140a and 140b connected to the second and

third chains

120b and 120c are alternately disposed.

In other words, the first and

second chains

120a and 120b and the

flights

140a and 140b respectively connected to the second and

third chains

120b and 120c are arranged in a zigzag manner at equal intervals.

In fact, if a two-row chain, such as two rows of first and

third chains

120a and 120c is used, a long flight corresponding to the length of the first and

third chains

120a and 120c (not shown) However, as stated earlier, there are practical limitations to installing infinitely long flights.

However, as in the present embodiment, the

flights

140a and 140b are not arranged long enough to cover the width of the entire channel but are zigzag arranged to cover only one side by dividing in half.

In other words, the

flights

140a and 140b are disposed on the first and

second chains

120a and 120b and the second and

third chains

120b and 120c, respectively, and the

flights

140a and 140b are connected to each other. When arranged in a zigzag manner at intervals, it is possible to use the existing

unit size flights

140a and 140b without causing any problem to the sludge collecting function.

In particular, when this method is applied, increasing the number of the first to third chain conveyors (110a ~ 110c) is able to process a wide settling basin that can reach up to 15m or more. In addition, as one chain for additionally supporting the flight is disposed as compared to the case where two rows of chains are used, the sludge load applied to the flight is absorbed, which is advantageous in preventing bending or deformation of the flight.

On the other hand, when the structure of the flight (140a, 140b) for pushing the sludge according to an embodiment of the present invention, the flight (140a, 140b) has a hollow portion (141, 142) for absorbing the load of the sludge.

Since the

hollow portions

141 and 142 are formed in the

flights

140a and 140b as described above, even if the diarrhea length is long, the weight can be reduced and the desired strength can be maintained. In this case, the

hollow parts

141 and 142 may be provided in plural numbers having different volumes. As shown in the figure, it may be more desirable to provide a lower volume of the lower hollow portion 142 in which the sludge load is more concentrated among the

hollow portions

141 and 142.

The

flights

140a and 140b are contacted with the sludge to pressurize the sludge, and the back plate portion spaced apart from the pressurizing plate portion 143 on one side of the pressing plate portion 143 so that the

hollow portions

141 and 142 are formed. 144 and a plurality of extension plate portions 145 extending rearward of the back plate portion 144.

The pressure plate portion 143 which substantially presses, that is, pushes the sludge is formed to have a longer length than the back plate portion 144.

In addition, a length of the dummy plate portion 146 is formed between the extension plate portion 145 is shorter than the extension plate portion 145 is disposed in the boundary region of the hollow portion (141, 142). The dummy plate portion 146 and the extension plate portion 145 are arranged side by side with each other.

Such flight (140a, 140b) can be produced by extrusion or drawing method according to the material, there is an advantage that the continuous production is possible by the extrusion or drawing method is applied.

Meanwhile, the

flights

140a and 140b are coupled to the first to

third chains

120a, 120b and 120c by the attachment 130. Attachment 130 is formed integrally with the first to third chain (120a, 120b, 120c), the filler block 131 is formed on one side. The filler block 131 of the attachment 130 is inserted into the space formed by the extension plate portion 145 and the dummy plate portion 146 of the

flights

140a and 140b to the flight shoe 132 and the screw coupling portion 133. Is firmly fixed to the flight.

Therefore, according to this embodiment having such a structure, it is possible to apply to a wide settling basin only with the existing unit flights (140a, 140b) without having to separately manufacture a long flight (not shown) separately It can be extended. In addition, by making the flight in a special structure, it is possible to prevent warpage and deformation.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

Claims

First to third chain conveyors having first to third chains rotated in a closed loop form by a motor, and spaced apart from each other in the sedimentation basin; And

A plurality of flights having a unit size connected to the first to third chains and moving along the first to third chains to collect sludge of the sedimentation basin;

The plurality of flights are connected to the first and second chains and the second and third chains, respectively, and the flights connected to the first and second chains and the flights connected to the second and third chains, respectively. Three-row chain flight type sludge collector, characterized in that arranged alternately.
The method of claim 1,

The flight is a three-row chain flight type sludge collector, characterized in that it comprises a hollow for absorbing the load.
The method of claim 2,

The flight,

A pressing plate part which contacts the sludge to pressurize the sludge;

A rear plate portion spaced apart from the pressing plate portion at one side of the pressing plate portion to form the hollow portion; And

And a plurality of extension plate portions extending rearward of the rear plate portion.
The method of claim 3,

The length of the pressing plate portion is formed longer than the back plate portion,

The hollow portion is a plurality of hollow portions having different volumes,

And a dummy plate portion having a shorter length than the extension plate portion is disposed at a boundary region of the plurality of hollow portions between the plurality of extension plate portions.
The method of claim 4, wherein

The flight is connected to the chain by an attachment formed integrally with the first to third chain,

The attachment is formed with a filler block on one side, the filler block is inserted into a space formed by the extension plate portion and the dummy plate portion of the three-chain chain flight type sludge collector, characterized in that the screw is coupled to the flight.