KR20030091893A - Rotary screen - Google Patents

Abstract

The present invention relates to a rotary vibration damper, and more particularly, to install a scraping rake in the rake of the vibration damper, to extend the bar to the scraping rake inside the rake, and to operate the rake bar in the case of overload to smoothly lift the discharge caught between the screen It improves the screen's ability to remove debris and prevents debris from trapping between screens, reducing power consumption and preventing failures, smoothing the rotation of the rotary screen, and increasing the width of the screen. The present invention relates to a vibration damper that can be easily operated and maintained by improving to a single drive system.

The present invention improves the ability to remove impurities of the screen and prevents the trapping of the impurities between the screen to reduce the power required and prevent the failure in advance, and smooth the rotation of the rotary screen, as well as the width of the screen In this case, it is possible to simplify operation and maintenance by improving to two-screen one-drive system.

Description

Rotary Vibrator {ROTARY SCREEN}

The present invention relates to a rotary vibration damper, and more particularly, to install a scraping rake in the rake of the vibration damper, to extend the bar to the scraping rake inside the rake, and to operate the rake bar in the case of overload to smoothly lift the discharge caught between the screen It improves the screen's ability to remove debris and prevents debris from trapping between screens, reducing power consumption and preventing failures, smoothing the rotation of the rotary screen, and increasing the width of the screen. The present invention relates to a vibration damper that can be easily operated and maintained by improving to a single drive system.

Generally, a vibration damper is installed in a drainage pump station, a water intake plant, a related water channel, a sewage treatment plant, and a dam in a lower zone than the surface of the water to filter the suspended solids with the water through the screen, and then remove them. do.

The vibration suppressor used for this purpose, as shown in Figure 1, the screen 5 is formed to be inclined at a predetermined angle with the bottom surface to filter out the debris with the water flow; A potential screen (6) installed at the front lower end of the screen (5) for filtering the contaminants passing between the screen (5) and the bottom surface; A rake (4) for removing a debris, which is supported and installed on the endless chain (10) of the left and right ends of the screen (5) to remove the debris between the screen (5) and the dislocation screen (6); A drive unit 7 for driving the endless chain 10 such that the rake 4 is continuously rotated on the screen 5; An apron (3) installed on the upper side of the screen (5) for smooth rotation of the rake (4) rotated by the endless chain (10) and complete removal of contaminants. In order to guide the rotational drive of the endless chain 10 is made of a guide rail 11 which is installed on both lower ends of the screen (5),

If you look at the operation, among the debris floated with the flowing water, the debris smaller than the gap of the screen (5) is forced out of the back of the screen (5) with the water flow, and the debris (1) larger than the diaphragm of the screen (5) After being caught on the front of the screen (5) of the drive, the drive shaft is connected to the motor (7) and a separate chain by driving the drive device (7) installed on the upper side of the screen (5) when the filth is filtered The sprocket 8 is rotated.

Accordingly, the endless chain 10 equipped with the rake 4 is continuously rotated at both sides of the screen 5 to remove impurities caught in the front of the screen 5, and thus the rake 4 is filtered through the screen 5. The miscellaneous material moved upward by) moves to the upper part of the screen 5 according to the driving of the chain 10 which is continuously rotated so as to move along the bent surface that is bent on the upper apron 3 of the screen 5. Is to be discharged to the outside through a separate discharge conveyor 12 is installed on the back of the screen (5).

However, according to the conventional vibration damper (1) having such a structure, when using the rake (4) to move the contaminants filtered by the screen 5 to the upper portion, the strong wood chips, plastic among the trapped material caught between the screens When the rake 4 is scraped up, the rake is bent and caused as a major cause of burnout and failure of the driving device due to the overload, and the clutter between the screens is not removed. Increasing water levels have made it difficult to smoothly remove impurities.

In addition, when the width of the screen 5 or the channel is 4 to 5 m or more, the screen often breaks without being able to withstand the water pressure due to the contaminants. Thus, a screen using one drive shaft 8 is conventionally used in a channel of 4 to 5 m or more. It was impossible to install, and there was a limit to install it by lowering the width of the channel to less than 4 ~ 5m so that it could be installed.

The present invention has been invented to improve the problems of the conventional rotary vibration damper, and improves the structure of the rake to remove the contaminants sandwiched between the screen smoothly, even if the channel width is 5m or more as a two-screen one drive screen Its purpose is to reduce the overload on the screen and prevent the malfunction of the rotary vibration damper so that the operation and maintenance of the vibration damper can be smoothly performed.

1 is a perspective view of a rotary vibration damper,

2 is a cross-sectional bottom view of the screen;

3 is a bottom cross-sectional view of the screen;

4 is a rake configuration according to the present invention,

Figure 5 is a detailed view of the scraping rake of Figure 4,

Figure 6 is a scratch rake operation of Figure 4;

Figure 7 is a general view of the extractor operation of the rake and the direction of the force

Figure 8 is a debris removal operation and force direction of the improved scratch rake

9 is a perspective view of a two screen one drive screen;

*** Explanation of symbols for main parts of drawing ***

1: rotary damper, 2: plate,

3: apron, 4: rake,

41: scraping rake part, 42: lifting rake part,

41-1: scratching bar, 41-2: torsion coil spring,

41-3: pin, 41-4: split pin,

41-5: rotational jaw,

5: screen, 6: potential screen,

7: drive unit, 8: drive shaft and sprocket,

9: base, 10: endless chain,

11: guide rail, 12: discharge conveyor

In order to achieve the above object, the vibration damper according to the present invention,

A screen having a predetermined inclination angle with the bottom surface of the channel; Including an orbital chain through the screen and the rake to move the contaminants to the upper portion at a predetermined interval; including, the rake has a lifting rake and the scraping rake and the scraping rake bar installed in the scraping rake.

The scraping rake bar is connected to the scraping rake so as to be rotatable, and when a load is applied by a contaminant, the scraping rake bar is preferably rotated by a predetermined angle in a half load direction.

It is preferable that a torsion coil spring is interposed between the scraping rake and the scraping rake bar so that the scraping rake bar is in place when the load is removed.

It is preferable that there is a rotating limiting jaw at the end of the scraping rake in the scraping rake bar.

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

As shown in Figs. 1, 2, and 3, the vibration suppressor is provided at a screen 5 which is formed to be inclined at a predetermined angle with the bottom surface so as to filter out contaminants floating with the water flow, A dislocation screen 6 for trapping contaminants passing between the screen 5 and the bottom surface, and endless chains at the left and right ends of the screen 5 to remove the contaminants between the screen 5 and the dislocation screen 6. 10) is composed of a rake (4) for removing impurities.

In the present invention, the object of the present invention is achieved by changing the structure of the rake 4 of FIGS.

4 is a plan view of the rake 4 according to the present invention. Referring to Figure 4, the rake (4) to lift the filth trapped on the screen (5), the lifting rake part 42 for lifting the contaminants in the front and the scraping rake (41) scraping up between the screen (5) Consists of, the scraping rake bar (41-1) is provided in order to efficiently scrape off the high-strength impurities (wood chips, reinforced plastics, iron goods) sandwiched between the screen (5). The scraping rake bar 41-1 is not fixed to the scraping rake part 41, but is comprised so that it may rotate as needed.

FIG. 5 is an exploded detail view of the scraping rake bar 41-1 of FIG. Referring to Fig. 5, a torsion coil screw 41-2 for operating the scraping rake bar 41-1 in a half load direction upon overload, a pin 41-3 for supporting it, and a pin 41-3 It consists of a split pin (41-4) for fixing.

6 is a cross-sectional view showing an operating state of the scraping rake bar 41-1 of FIG. Looking at Figure 6, when the scraps sandwiched between the screen 5 is strong scraping rake bar (41-1) is operated in a half load direction about 45 degrees relative to the scraping rake (41) to prevent overload. The rotation limiting jaw 41-5 limits the bending angle of the scraping rake bar 41-1. Reference numeral 41-3 is a pin connecting the scraping rake portion 41 and the scratching rake bar 41-1 to be rotatable. If necessary, the scraping rake bar 41-1 may be fixed to the scraping rake part 41 in a 45-degree rotated state. However, in the case where it is fixed, even when a large load does not act on the scraping rake bar 41-1, the contaminant is pushed in the screen direction, which is not preferable.

Fig. 7 is a view showing the debris removal operation and the direction of the force of the scraping rake of the conventional type. Referring to FIG. 7, when the scraping rake part 41 is a fixed bar, when the contaminants are caught in the screen 5, the direction of the force coincides with the direction of the screen 5 in the F1 direction, and the overload becomes more severe. Cause.

8 is a view showing the operation of removing the contaminants of the scraping rake according to the present invention. Referring to Figure 8, in the case of the scraping rake bar (41-1) in the rake according to the present invention when the contaminant is caught in the screen (5) to operate in a 45-degree direction because the direction of force is converted to the F2 direction screen The miscellaneous material caught in (5) is easily escaped between the screens 5 to prevent overload and to prevent the pinching of the screens 5. After the debris is removed, a normal debris removal function is performed by restoring the scraping rake bar 41-1 by the action of the bitrim coil spring 41-2.

FIG. 9 shows a two-screen one-drive rotary damper 1, in which the channel width is 5 m or more, and two screens having a width of 3 m or less are installed in two and the two rotary dampers 1 are driven by one driving device 7. It is. As it is a two-screen one drive, it reduces the load of the vibration suppressor 1 and prevents damage and failure in case of overload. As it is 1 screen of 2 screens, it can be installed without changing the concrete structure even if the channel is over 5m.

The vibration suppressor according to the present invention installs a scraping rake on the rake, extends the bar on the scraping rake inside the rake, and operates the rake bar in the case of overload, thereby smoothly lifting and draining the impurities caught between the screens, thereby improving the ability of removing the screens It prevents clutter between screens and reduces power consumption, prevents troubles, smoothly rotates the rotary screen, and improves it with a two-screen one-drive system when the screen is getting wider. And there is an effect that can simplify the maintenance.

Claims (4)

In the vibration suppressor installed in the water channel to filter out the impurities, A screen having a predetermined inclination angle with the bottom surface of the channel; Includes a chain of caterpillars are provided at a predetermined interval through the screen and the rake for moving the contaminants upwards; including, The rake is a vibration damper, characterized in that it has a lifting rake and the scraping rake and the scraping rake bar provided in the scraping rake. The method of claim 1, The scraping rake bar, It is connected to the scraping rake so as to be rotatable, and a vibration damper, characterized in that when the load is applied by the contaminant, rotates a predetermined angle in the half load direction. The method of claim 2, A vibration damper, characterized in that the torsion coil spring is interposed between the scratching rake and the scratching rake bar so that the scratching rake bar is in place when the load is removed. The method according to any one of claims 1 to 3, Vibration limiter, characterized in that the scraping rake in the end of the scraping rake bar has a limiting jaw.