KR101413666B1 - Apparatus for detecting abnormality of a chain - Google Patents

Abstract

The present invention relates to a chain abnormality detection apparatus for a sludge collector for a water treatment plant, and more particularly, to a sludge collector provided in a sedimentation area and having a flight for collecting sludge while being moved by a chain, A chain abnormality detecting unit for detecting abnormality of the chain based on rotational motion; And a controller for receiving a signal sensed by the chain abnormality sensing unit and determining or detecting an abnormality in the chain, wherein the chain abnormality sensing unit comprises: a mechanical motion module for converting a pressing force of the flight into a mechanical rotation motion; A module support for supporting the mechanical motion module; And a sensor coupled to the module support for sensing whether the flight is moving based on motion of the mechanical motion module.

Description

TECHNICAL FIELD [0001] The present invention relates to a chain abnormality detection apparatus for a sludge collector for a water treatment plant,

The present invention relates to a chain abnormality detection apparatus for a sludge collector for a water treatment facility, and more particularly, to a chain abnormality detection apparatus for a sludge collector for a water treatment facility, which converts a pressing force of a flight provided in a sludge collector into a mechanical rotation motion, The present invention relates to a new type of chain abnormality detecting device for a sludge collector for a water treatment facility.

In the case of a water treatment plant for water and wastewater treatment, the floatation step in the raw water flowing from the home or industrial site, the decomposition and precipitation step using the activated sludge, and the precipitation step, After the activation step, the supernatant is re-separated from the second settler, and the best isotope having passed through the third settling or filter paper is treated with chemicals and discharged to the stream.

In such a water treatment facility, sludge (sediment or foam) is generated during the removal of suspended solids and the decomposition of wastewater using activated sludge. A sludge collector is used to remove or collect such sludge.

There are various types of sludge collectors, but chain fly sludge collectors are generally used. The chain flight type sludge collector has a structure in which a chain disposed on both sides is driven to collect sludge while a flight connected to the sludge crossing therebetween moves.

In such a structure, the role of the chain is important. If the chain elongates or breaks, the entire sludge collector may fail or be interrupted and the damage may become large.

For this reason, when the chain is stretched or broken, it is important to detect and maintain the chain early, and techniques for this are disclosed in Korean Patent Application No. 10-1999-0029881 and others.

Most of the related arts including the above documents have a structure in which, when a plurality of sensors are mounted to detect the movement of a flight, it is determined that there is an abnormality in the chain when the sensor is not sensed or the time is delayed.

However, in the case of the conventional technology, since a plurality of sensors are applied only to a simple structure, the possibility of various applications is limited. Therefore, a new type of chain sensor which can reliably operate with less error, A detection device is required.

Korea Patent Office Application No. 10-1999-0029881

SUMMARY OF THE INVENTION An object of the present invention is to provide a sludge collector for a new type of sludge collector which is capable of sensing reliability by increasing the accuracy of anomaly detection by converting a pressing force of a flight provided in a sludge collector Device.

The object is achieved by a sludge collector disposed in a sedimentation area and having a flight for collecting sludge while being moved by a chain so as to detect an abnormality of the chain based on a mechanical rotating motion generated by a pressing force of the flight A chain abnormality detection unit; And a controller for receiving a signal sensed by the chain abnormality sensing unit and determining or detecting an abnormality in the chain, wherein the chain abnormality sensing unit comprises: a mechanical motion module for converting a pressing force of the flight into a mechanical rotation motion; A module support for supporting the mechanical motion module; And a sensor coupled to the module support and sensing a movement of the flight based on the motion of the mechanical motion module.

The chain abnormality detection unit is arranged in at least one pair in the sedimentation area, and the sensor is a proximity sensor, and the controller can judge or detect the abnormality of the chain based on the sensing point of time of the pair of proximity sensors .

The chain abnormality sensing unit may be a rotary chain abnormality sensing unit, and the mechanical movement module may be a mechanical rotation module that is rotated when the flight is pressed.

The mechanical rotating module includes a star-shaped rotating blade rotatably coupled to one side of the module support by a rotating portion, and having a plurality of arms arranged radially; And a plurality of wheels individually coupled to the arms of the rotating blade and to which the flight is contact-urged.

The rotation unit includes: a shaft having one end fixed to the module support; A polymer bearing coupled to an outer surface of the shaft; A collar connected to one side of the rotating blade outside the polymer bearing; A spacer connected to the other side of the rotating blade to adjust a spacing distance; A spring disposed adjacent to the collar to adjust a rotational speed of the rotating blade and a pressing force of the flight with respect to the rotating blade; And an end plate coupled to the other end of the shaft, wherein the wheel is detachably coupled to the arm of the rotating blade by a cast nut and a split pin, or a lock nut.

According to the present invention, the pressing force of the flight provided in the sludge collector is converted into a mechanical rotating motion and transmitted to the sensor, thereby enhancing the accuracy of the abnormality sensing, thereby achieving reliable sensing.

1 is a side view of a sedimentation cell in which a chain anomaly detection device of a sludge collector for a water treatment facility according to a first embodiment of the present invention is installed;
Fig. 2 is a schematic enlarged oblique view of Fig. 1,
FIG. 3 is a diagram showing a flight and a rotation-type abnormality sensing unit,
Fig. 4 is a side view of the rotation type chain abnormality sensing unit,
FIG. 5 is a perspective view of a rotation type chain abnormality sensing unit,
6 is a cross-sectional view taken along line AA in Fig. 3,
FIG. 7 is a cross-sectional view taken along line BB in FIG. 3,

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

FIG. 1 is a side view of a sedimentation bed in which a chain anomaly detection device for a sludge collector for a water treatment facility according to a first embodiment of the present invention is installed, and FIG. 2 is an enlarged schematic perspective view of FIG.

As described above, in the water treatment facility, sludge (sediment or foam) is generated upon removal of suspended solids in raw water and decomposition of wastewater using active sludge. In order to remove or collect such sludge, A sludge collector 2 may be applied.

In this embodiment, a chain flight type sludge collector 2 is applied as the sludge collector 2.

In the chain flight type sludge collector 2, the chains 3 disposed on both sides are driven in a closed loop manner by the motor part 4, so that the flight 5 vertically connected therebetween moves and collects the sludge Structure.

On the other hand, a chain abnormality detecting device of the sludge collector for the water treatment facility of the present embodiment is provided in such a sedimentation tank 1. The chain abnormality detection apparatus for a sludge collector for a water treatment facility comprises a chain abnormality detection unit (100) arranged in the sedimentation area (1) and detecting abnormality of the chain (3) And a controller (not shown) for controlling the chain 3 to judge or detect the abnormality of the chain 3 on the basis of the transmitted information.

Fig. 3 is a diagram showing a flight and an anomaly detection unit as a rotation type. Fig. 4 is a side view of the rotation type anomaly detection unit, Fig. 5 is a perspective view of the rotation type anomaly detection unit, And Fig. 7 is a sectional view taken along the line BB in Fig.

Referring to these figures, the chain abnormality sensing unit 100 includes a mechanical motion module 110 mechanically moved by the pressure of the flight 5, a module support 120 supporting the mechanical motion module 110, And a sensor 130 coupled to the module support 120 and sensing whether the flight 5 is moving based on the motion of the mechanical motion module 110.

First, referring to the sensor 130, the sensor 130 is applied to the proximity sensor 130 in this embodiment.

The chain abnormality sensing unit 100 including the mechanical motion module 110, the module support 120 and the proximity sensor 130 may be disposed in pairs in the region of the sedimentation tank 1 as shown in FIG.

When the chain abnormality sensing units 100 are arranged in a pair in the area of the sedimentation area 1, the controller (not shown) determines whether the flights 5 are meandering based on the sensing points of the pair of proximity sensors 130, Can be detected.

In other words, when the chain abnormality detecting unit 100 is disposed in the region of the sedimentation tanks 1, two proximity sensors 130 may be spaced apart as well. If the flight 5 is above the chain 3 It is possible to determine whether or not the flight 5 meanders because a difference may occur at the time of detection of the two proximity sensors 130 with respect to the flight 5. Therefore, if the chain abnormality detecting units are arranged in pairs, it is advantageous to judge not only the breakage of the chain but also the slackness as well as the meandering.

Meanwhile, in this embodiment, the chain abnormality sensing unit 100 is applied as a rotation type chain abnormality sensing unit 100. [

The mechanical motion module 110 is applied to the mechanical rotation module 110 which is rotated when the flight 5 is pressed.

The mechanical rotating module 110 is rotatably coupled to one side of the module support 120 by a rotating part 111 and includes a star blade type rotating blade 113 in which the arm 112 is radially arranged, (114) individually coupled to the arms (112) of the wheel (113) and to which the flight (5) is contact-urged.

The rotating part 111 engages a star-shaped rotating blade 113 on the module support 120 so that the rotating blade 113 can be rotated.

6, the rotation unit 111 includes a shaft 111a fixed at one end to the module support 120 and a polymer bearing 111b coupled to an outer surface of the shaft 111a. A collar 111c connected to one side of the rotating blade 113 from the outside of the polymer bearing 111b, a spacer 111d connected to the other side of the rotating blade to adjust the spacing, and a collar 111c An end plate 111g coupled to the other end of the shaft 111a and a pair of end plates 111g disposed adjacent to the collar 111c to rotate at a rotational speed And a spring (spring) 111f installed to adjust the pressing force of the flight with respect to the rotating blade.

The rotating blade 113 can be coupled to the module support 120 by the organic structure that is disposed so as to surround the shaft 111a and the rotating blade 113 can be rotated on the module support 120 .

The wheel 114 is a portion in which the flight 5 is substantially pressed as shown in Fig. The wheel 114 is detachably attached to the rotary blade 113 by a cast nut 115a, a split pin 115b and a plurality of washers 115c as shown in Fig. Possibly combined. Alternatively, a lock nut for preventing loosening may be used in place of the cast nut 115a and the split pin 115b.

The module support 120 is a kind of bracket that supports the mechanical rotation module 110. In this embodiment, the module support 120 includes a fixed body 121 and a movable body 122 movable with respect to the fixed body 121. [ An elongated hole 123 is formed in the moving body 122, and a proximity sensor 130 is provided in the elongated hole 123.

The distance of the wheel 114 with respect to the flight 5 by making the module support 120 into the fixing body 121 and the moving body 122 and by joining the proximity sensor 130 to the slot 123 on the moving body 122, The adjustment of the proximity sensor 130 with respect to the wheel 114 is facilitated.

The operation of the chain abnormality detecting device of the sludge collector for water treatment equipment having such a configuration will be described below.

Since the wheel 114 rests on the distal end portions of the arms 112 of the star-like rotating blade 113, when the flight 5 is advanced and pressed on one of the wheels 114 in this state, The rotating blade 113 is rotated by the rotating shaft 111.

When the rotating blade 113 is rotated, the wheel 114 adjacent to the proximity sensor 130 approaches the proximity sensor 130 so that the proximity sensor 130 generates a signal and transmits it to the controller. Then, the controller detects that the flight 5 has passed, that is, the passing signal of the flight 5.

In this way, whenever the flight 5 pushes the wheel 114 adjacent thereto, the wheel 114 positioned above the wheel approaches the proximity sensor 130 and is sensed by the proximity sensor 130, If the periodic sensing is performed, the chain 3 may be regarded as operating normally. However, if the sensing signal of the proximity sensor 130 is not less than the preset time or is not periodic, the maintenance operation can be performed by considering the sensor 3 as abnormal.

As described above, when the rotation type chain abnormality sensing unit 100 is applied to generate the sensing signal to the proximity sensor 130, unlike the conventional case, the abnormality of the chain 3 can be detected more reliably without failure .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1: Settling tank 2: Sludge collector
3: Chain 4: Motor section
5: Flight 100: Rotational chain abnormality detection unit
110: mechanical rotating motion module 111: rotating part
112: arm 113: rotating blade
114: wheel 120: module support
121: Fixing body 122: Moving body
123: elongated hole 130: proximity sensor

Claims (5)

A chain abnormality detecting unit for detecting an abnormality of the chain based on a mechanical rotating motion generated by a pressing force of the flight, the chain abnormality detecting unit being arranged in a sedimentation area, ; And
And a controller for receiving a signal sensed by the chain abnormality sensing unit to determine or detect an abnormality in the chain,
The chain abnormality detection unit includes:
A mechanical motion module for converting the pushing force of the flight into a mechanical rotational motion;
A module support for supporting the mechanical motion module; And
And a sensor coupled to the module support for sensing whether the flight is moving based on motion of the mechanical motion module,
The chain abnormality detecting unit is a rotational chain abnormality detecting unit,
Wherein the mechanical motion module is a mechanical rotation module that is rotated when the flight is pressed,
The mechanical rotary motion module includes:
A star-shaped rotating blade rotatably coupled to one side of the module support by a rotating portion and having a plurality of arms arranged radially; And
And a plurality of wheels individually coupled to the arms of the rotating blade and to which the flight is contact-urged.
The method according to claim 1,
Wherein the chain abnormality detecting unit is disposed in at least one pair in the sedimentation area,
Wherein the sensor is a proximity sensor,
Wherein the controller determines or detects an abnormality in the chain based on a detection time point of a pair of the proximity sensors.
delete delete The method according to claim 1,
The rotation unit includes:
A shaft having one end fixed to the module support;
A polymer bearing coupled to an outer surface of the shaft;
A collar connected to one side of the rotating blade outside the polymer bearing;
A spacer connected to the other side of the rotating blade to adjust a spacing distance;
A spring disposed adjacent to the collar to adjust a rotational speed of the rotating blade and a pressing force of the flight with respect to the rotating blade; And
And an end plate coupled to the other end of the shaft, wherein the wheel is detachably coupled to an arm of the rotating blade by a cast nut, a split pin, or a lock nut. Chain abnormality detection device of sludge collector.

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